From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Fri, 14 Jun 2024 11:57:26 -0700 Subject: [PATCH] Chunk System + Starlight from Moonrise See https://github.com/Tuinity/Moonrise diff --git a/src/main/java/ca/spottedleaf/moonrise/common/list/EntityList.java b/src/main/java/ca/spottedleaf/moonrise/common/list/EntityList.java new file mode 100644 index 0000000000000000000000000000000000000000..ba68998f6ef57b24c72fd833bd7de440de9501cc --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/list/EntityList.java @@ -0,0 +1,129 @@ +package ca.spottedleaf.moonrise.common.list; + +import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap; +import net.minecraft.world.entity.Entity; +import java.util.Arrays; +import java.util.Iterator; +import java.util.NoSuchElementException; + +// list with O(1) remove & contains + +/** + * @author Spottedleaf + */ +public final class EntityList implements Iterable { + + protected final Int2IntOpenHashMap entityToIndex = new Int2IntOpenHashMap(2, 0.8f); + { + this.entityToIndex.defaultReturnValue(Integer.MIN_VALUE); + } + + protected static final Entity[] EMPTY_LIST = new Entity[0]; + + protected Entity[] entities = EMPTY_LIST; + protected int count; + + public int size() { + return this.count; + } + + public boolean contains(final Entity entity) { + return this.entityToIndex.containsKey(entity.getId()); + } + + public boolean remove(final Entity entity) { + final int index = this.entityToIndex.remove(entity.getId()); + if (index == Integer.MIN_VALUE) { + return false; + } + + // move the entity at the end to this index + final int endIndex = --this.count; + final Entity end = this.entities[endIndex]; + if (index != endIndex) { + // not empty after this call + this.entityToIndex.put(end.getId(), index); // update index + } + this.entities[index] = end; + this.entities[endIndex] = null; + + return true; + } + + public boolean add(final Entity entity) { + final int count = this.count; + final int currIndex = this.entityToIndex.putIfAbsent(entity.getId(), count); + + if (currIndex != Integer.MIN_VALUE) { + return false; // already in this list + } + + Entity[] list = this.entities; + + if (list.length == count) { + // resize required + list = this.entities = Arrays.copyOf(list, (int)Math.max(4L, count * 2L)); // overflow results in negative + } + + list[count] = entity; + this.count = count + 1; + + return true; + } + + public Entity getChecked(final int index) { + if (index < 0 || index >= this.count) { + throw new IndexOutOfBoundsException("Index: " + index + " is out of bounds, size: " + this.count); + } + return this.entities[index]; + } + + public Entity getUnchecked(final int index) { + return this.entities[index]; + } + + public Entity[] getRawData() { + return this.entities; + } + + public void clear() { + this.entityToIndex.clear(); + Arrays.fill(this.entities, 0, this.count, null); + this.count = 0; + } + + @Override + public Iterator iterator() { + return new Iterator() { + + Entity lastRet; + int current; + + @Override + public boolean hasNext() { + return this.current < EntityList.this.count; + } + + @Override + public Entity next() { + if (this.current >= EntityList.this.count) { + throw new NoSuchElementException(); + } + return this.lastRet = EntityList.this.entities[this.current++]; + } + + @Override + public void remove() { + final Entity lastRet = this.lastRet; + + if (lastRet == null) { + throw new IllegalStateException(); + } + this.lastRet = null; + + EntityList.this.remove(lastRet); + --this.current; + } + }; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/list/IBlockDataList.java b/src/main/java/ca/spottedleaf/moonrise/common/list/IBlockDataList.java new file mode 100644 index 0000000000000000000000000000000000000000..fcfbca333234c09f7c056bbfcd9ac8860b20a8db --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/list/IBlockDataList.java @@ -0,0 +1,125 @@ +package ca.spottedleaf.moonrise.common.list; + +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.shorts.Short2LongOpenHashMap; +import java.util.Arrays; +import net.minecraft.world.level.block.Block; +import net.minecraft.world.level.block.state.BlockState; +import net.minecraft.world.level.chunk.GlobalPalette; + +public final class IBlockDataList { + + private static final GlobalPalette GLOBAL_PALETTE = new GlobalPalette<>(Block.BLOCK_STATE_REGISTRY); + + // map of location -> (index | (location << 16) | (palette id << 32)) + private final Short2LongOpenHashMap map = new Short2LongOpenHashMap(2, 0.8f); + { + this.map.defaultReturnValue(Long.MAX_VALUE); + } + + private static final long[] EMPTY_LIST = new long[0]; + + private long[] byIndex = EMPTY_LIST; + private int size; + + public static int getLocationKey(final int x, final int y, final int z) { + return (x & 15) | (((z & 15) << 4)) | ((y & 255) << (4 + 4)); + } + + public static BlockState getBlockDataFromRaw(final long raw) { + return GLOBAL_PALETTE.valueFor((int)(raw >>> 32)); + } + + public static int getIndexFromRaw(final long raw) { + return (int)(raw & 0xFFFF); + } + + public static int getLocationFromRaw(final long raw) { + return (int)((raw >>> 16) & 0xFFFF); + } + + public static long getRawFromValues(final int index, final int location, final BlockState data) { + return (long)index | ((long)location << 16) | (((long)GLOBAL_PALETTE.idFor(data)) << 32); + } + + public static long setIndexRawValues(final long value, final int index) { + return value & ~(0xFFFF) | (index); + } + + public long add(final int x, final int y, final int z, final BlockState data) { + return this.add(getLocationKey(x, y, z), data); + } + + public long add(final int location, final BlockState data) { + final long curr = this.map.get((short)location); + + if (curr == Long.MAX_VALUE) { + final int index = this.size++; + final long raw = getRawFromValues(index, location, data); + this.map.put((short)location, raw); + + if (index >= this.byIndex.length) { + this.byIndex = Arrays.copyOf(this.byIndex, (int)Math.max(4L, this.byIndex.length * 2L)); + } + + this.byIndex[index] = raw; + return raw; + } else { + final int index = getIndexFromRaw(curr); + final long raw = this.byIndex[index] = getRawFromValues(index, location, data); + + this.map.put((short)location, raw); + + return raw; + } + } + + public long remove(final int x, final int y, final int z) { + return this.remove(getLocationKey(x, y, z)); + } + + public long remove(final int location) { + final long ret = this.map.remove((short)location); + final int index = getIndexFromRaw(ret); + if (ret == Long.MAX_VALUE) { + return ret; + } + + // move the entry at the end to this index + final int endIndex = --this.size; + final long end = this.byIndex[endIndex]; + if (index != endIndex) { + // not empty after this call + this.map.put((short)getLocationFromRaw(end), setIndexRawValues(end, index)); + } + this.byIndex[index] = end; + this.byIndex[endIndex] = 0L; + + return ret; + } + + public int size() { + return this.size; + } + + public long getRaw(final int index) { + return this.byIndex[index]; + } + + public int getLocation(final int index) { + return getLocationFromRaw(this.getRaw(index)); + } + + public BlockState getData(final int index) { + return getBlockDataFromRaw(this.getRaw(index)); + } + + public void clear() { + this.size = 0; + this.map.clear(); + } + + public LongIterator getRawIterator() { + return this.map.values().iterator(); + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/common/list/IteratorSafeOrderedReferenceSet.java b/src/main/java/ca/spottedleaf/moonrise/common/list/IteratorSafeOrderedReferenceSet.java new file mode 100644 index 0000000000000000000000000000000000000000..c21e00812f1aaa1279834a0562d360d6b89e146c --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/list/IteratorSafeOrderedReferenceSet.java @@ -0,0 +1,312 @@ +package ca.spottedleaf.moonrise.common.list; + +import it.unimi.dsi.fastutil.objects.Reference2IntLinkedOpenHashMap; +import it.unimi.dsi.fastutil.objects.Reference2IntMap; +import java.util.Arrays; +import java.util.NoSuchElementException; + +public final class IteratorSafeOrderedReferenceSet { + + public static final int ITERATOR_FLAG_SEE_ADDITIONS = 1 << 0; + + private final Reference2IntLinkedOpenHashMap indexMap; + private int firstInvalidIndex = -1; + + /* list impl */ + private E[] listElements; + private int listSize; + + private final double maxFragFactor; + + private int iteratorCount; + + public IteratorSafeOrderedReferenceSet() { + this(16, 0.75f, 16, 0.2); + } + + public IteratorSafeOrderedReferenceSet(final int setCapacity, final float setLoadFactor, final int arrayCapacity, + final double maxFragFactor) { + this.indexMap = new Reference2IntLinkedOpenHashMap<>(setCapacity, setLoadFactor); + this.indexMap.defaultReturnValue(-1); + this.maxFragFactor = maxFragFactor; + this.listElements = (E[])new Object[arrayCapacity]; + } + + /* + public void check() { + int iterated = 0; + ReferenceOpenHashSet check = new ReferenceOpenHashSet<>(); + if (this.listElements != null) { + for (int i = 0; i < this.listSize; ++i) { + Object obj = this.listElements[i]; + if (obj != null) { + iterated++; + if (!check.add((E)obj)) { + throw new IllegalStateException("contains duplicate"); + } + if (!this.contains((E)obj)) { + throw new IllegalStateException("desync"); + } + } + } + } + + if (iterated != this.size()) { + throw new IllegalStateException("Size is mismatched! Got " + iterated + ", expected " + this.size()); + } + + check.clear(); + iterated = 0; + for (final java.util.Iterator iterator = this.unsafeIterator(IteratorSafeOrderedReferenceSet.ITERATOR_FLAG_SEE_ADDITIONS); iterator.hasNext();) { + final E element = iterator.next(); + iterated++; + if (!check.add(element)) { + throw new IllegalStateException("contains duplicate (iterator is wrong)"); + } + if (!this.contains(element)) { + throw new IllegalStateException("desync (iterator is wrong)"); + } + } + + if (iterated != this.size()) { + throw new IllegalStateException("Size is mismatched! (iterator is wrong) Got " + iterated + ", expected " + this.size()); + } + } + */ + + private double getFragFactor() { + return 1.0 - ((double)this.indexMap.size() / (double)this.listSize); + } + + public int createRawIterator() { + ++this.iteratorCount; + if (this.indexMap.isEmpty()) { + return -1; + } else { + return this.firstInvalidIndex == 0 ? this.indexMap.getInt(this.indexMap.firstKey()) : 0; + } + } + + public int advanceRawIterator(final int index) { + final E[] elements = this.listElements; + int ret = index + 1; + for (int len = this.listSize; ret < len; ++ret) { + if (elements[ret] != null) { + return ret; + } + } + + return -1; + } + + public void finishRawIterator() { + if (--this.iteratorCount == 0) { + if (this.getFragFactor() >= this.maxFragFactor) { + this.defrag(); + } + } + } + + public boolean remove(final E element) { + final int index = this.indexMap.removeInt(element); + if (index >= 0) { + if (this.firstInvalidIndex < 0 || index < this.firstInvalidIndex) { + this.firstInvalidIndex = index; + } + if (this.listElements[index] != element) { + throw new IllegalStateException(); + } + this.listElements[index] = null; + if (this.iteratorCount == 0 && this.getFragFactor() >= this.maxFragFactor) { + this.defrag(); + } + //this.check(); + return true; + } + return false; + } + + public boolean contains(final E element) { + return this.indexMap.containsKey(element); + } + + public boolean add(final E element) { + final int listSize = this.listSize; + + final int previous = this.indexMap.putIfAbsent(element, listSize); + if (previous != -1) { + return false; + } + + if (listSize >= this.listElements.length) { + this.listElements = Arrays.copyOf(this.listElements, listSize * 2); + } + this.listElements[listSize] = element; + this.listSize = listSize + 1; + + //this.check(); + return true; + } + + private void defrag() { + if (this.firstInvalidIndex < 0) { + return; // nothing to do + } + + if (this.indexMap.isEmpty()) { + Arrays.fill(this.listElements, 0, this.listSize, null); + this.listSize = 0; + this.firstInvalidIndex = -1; + //this.check(); + return; + } + + final E[] backingArray = this.listElements; + + int lastValidIndex; + java.util.Iterator> iterator; + + if (this.firstInvalidIndex == 0) { + iterator = this.indexMap.reference2IntEntrySet().fastIterator(); + lastValidIndex = 0; + } else { + lastValidIndex = this.firstInvalidIndex; + final E key = backingArray[lastValidIndex - 1]; + iterator = this.indexMap.reference2IntEntrySet().fastIterator(new Reference2IntMap.Entry() { + @Override + public int getIntValue() { + throw new UnsupportedOperationException(); + } + + @Override + public int setValue(int i) { + throw new UnsupportedOperationException(); + } + + @Override + public E getKey() { + return key; + } + }); + } + + while (iterator.hasNext()) { + final Reference2IntMap.Entry entry = iterator.next(); + + final int newIndex = lastValidIndex++; + backingArray[newIndex] = entry.getKey(); + entry.setValue(newIndex); + } + + // cleanup end + Arrays.fill(backingArray, lastValidIndex, this.listSize, null); + this.listSize = lastValidIndex; + this.firstInvalidIndex = -1; + //this.check(); + } + + public E rawGet(final int index) { + return this.listElements[index]; + } + + public int size() { + // always returns the correct amount - listSize can be different + return this.indexMap.size(); + } + + public IteratorSafeOrderedReferenceSet.Iterator iterator() { + return this.iterator(0); + } + + public IteratorSafeOrderedReferenceSet.Iterator iterator(final int flags) { + ++this.iteratorCount; + return new BaseIterator<>(this, true, (flags & ITERATOR_FLAG_SEE_ADDITIONS) != 0 ? Integer.MAX_VALUE : this.listSize); + } + + public java.util.Iterator unsafeIterator() { + return this.unsafeIterator(0); + } + public java.util.Iterator unsafeIterator(final int flags) { + return new BaseIterator<>(this, false, (flags & ITERATOR_FLAG_SEE_ADDITIONS) != 0 ? Integer.MAX_VALUE : this.listSize); + } + + public static interface Iterator extends java.util.Iterator { + + public void finishedIterating(); + + } + + private static final class BaseIterator implements IteratorSafeOrderedReferenceSet.Iterator { + + private final IteratorSafeOrderedReferenceSet set; + private final boolean canFinish; + private final int maxIndex; + private int nextIndex; + private E pendingValue; + private boolean finished; + private E lastReturned; + + private BaseIterator(final IteratorSafeOrderedReferenceSet set, final boolean canFinish, final int maxIndex) { + this.set = set; + this.canFinish = canFinish; + this.maxIndex = maxIndex; + } + + @Override + public boolean hasNext() { + if (this.finished) { + return false; + } + if (this.pendingValue != null) { + return true; + } + + final E[] elements = this.set.listElements; + int index, len; + for (index = this.nextIndex, len = Math.min(this.maxIndex, this.set.listSize); index < len; ++index) { + final E element = elements[index]; + if (element != null) { + this.pendingValue = element; + this.nextIndex = index + 1; + return true; + } + } + + this.nextIndex = index; + return false; + } + + @Override + public E next() { + if (!this.hasNext()) { + throw new NoSuchElementException(); + } + final E ret = this.pendingValue; + + this.pendingValue = null; + this.lastReturned = ret; + + return ret; + } + + @Override + public void remove() { + final E lastReturned = this.lastReturned; + if (lastReturned == null) { + throw new IllegalStateException(); + } + this.lastReturned = null; + this.set.remove(lastReturned); + } + + @Override + public void finishedIterating() { + if (this.finished || !this.canFinish) { + throw new IllegalStateException(); + } + this.lastReturned = null; + this.finished = true; + this.set.finishRawIterator(); + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/list/ReferenceList.java b/src/main/java/ca/spottedleaf/moonrise/common/list/ReferenceList.java new file mode 100644 index 0000000000000000000000000000000000000000..93e8c8134da8ee1a9b777c708f992922a1a7de8b --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/list/ReferenceList.java @@ -0,0 +1,135 @@ +package ca.spottedleaf.moonrise.common.list; + +import it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap; +import java.util.Arrays; +import java.util.Iterator; +import java.util.NoSuchElementException; + +public final class ReferenceList implements Iterable { + + private final Reference2IntOpenHashMap referenceToIndex = new Reference2IntOpenHashMap<>(2, 0.8f); + { + this.referenceToIndex.defaultReturnValue(Integer.MIN_VALUE); + } + + private static final Object[] EMPTY_LIST = new Object[0]; + + private E[] references; + private int count; + + public ReferenceList() { + this((E[])EMPTY_LIST, 0); + } + + public ReferenceList(final E[] array, final int count) { + this.references = array; + this.count = count; + } + + public int size() { + return this.count; + } + + public boolean contains(final E obj) { + return this.referenceToIndex.containsKey(obj); + } + + public boolean remove(final E obj) { + final int index = this.referenceToIndex.removeInt(obj); + if (index == Integer.MIN_VALUE) { + return false; + } + + // move the object at the end to this index + final int endIndex = --this.count; + final E end = (E)this.references[endIndex]; + if (index != endIndex) { + // not empty after this call + this.referenceToIndex.put(end, index); // update index + } + this.references[index] = end; + this.references[endIndex] = null; + + return true; + } + + public boolean add(final E obj) { + final int count = this.count; + final int currIndex = this.referenceToIndex.putIfAbsent(obj, count); + + if (currIndex != Integer.MIN_VALUE) { + return false; // already in this list + } + + E[] list = this.references; + + if (list.length == count) { + // resize required + list = this.references = Arrays.copyOf(list, (int)Math.max(4L, count * 2L)); // overflow results in negative + } + + list[count] = obj; + this.count = count + 1; + + return true; + } + + public E getChecked(final int index) { + if (index < 0 || index >= this.count) { + throw new IndexOutOfBoundsException("Index: " + index + " is out of bounds, size: " + this.count); + } + return this.references[index]; + } + + public E getUnchecked(final int index) { + return this.references[index]; + } + + public Object[] getRawData() { + return this.references; + } + + public E[] getRawDataUnchecked() { + return this.references; + } + + public void clear() { + this.referenceToIndex.clear(); + Arrays.fill(this.references, 0, this.count, null); + this.count = 0; + } + + @Override + public Iterator iterator() { + return new Iterator<>() { + private E lastRet; + private int current; + + @Override + public boolean hasNext() { + return this.current < ReferenceList.this.count; + } + + @Override + public E next() { + if (this.current >= ReferenceList.this.count) { + throw new NoSuchElementException(); + } + return this.lastRet = ReferenceList.this.references[this.current++]; + } + + @Override + public void remove() { + final E lastRet = this.lastRet; + + if (lastRet == null) { + throw new IllegalStateException(); + } + this.lastRet = null; + + ReferenceList.this.remove(lastRet); + --this.current; + } + }; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/list/SortedList.java b/src/main/java/ca/spottedleaf/moonrise/common/list/SortedList.java new file mode 100644 index 0000000000000000000000000000000000000000..db92261a6cb3758391108361096417c61bc82cdc --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/list/SortedList.java @@ -0,0 +1,117 @@ +package ca.spottedleaf.moonrise.common.list; + +import java.lang.reflect.Array; +import java.util.Arrays; +import java.util.Comparator; + +public final class SortedList { + + private static final Object[] EMPTY_LIST = new Object[0]; + + private Comparator comparator; + private E[] elements; + private int count; + + public SortedList(final Comparator comparator) { + this((E[])EMPTY_LIST, comparator); + } + + public SortedList(final E[] elements, final Comparator comparator) { + this.elements = elements; + this.comparator = comparator; + } + + // start, end are inclusive + private static int insertIdx(final E[] elements, final E element, final Comparator comparator, + int start, int end) { + while (start <= end) { + final int middle = (start + end) >>> 1; + + final E middleVal = elements[middle]; + + final int cmp = comparator.compare(element, middleVal); + + if (cmp < 0) { + end = middle - 1; + } else { + start = middle + 1; + } + } + + return start; + } + + public int size() { + return this.count; + } + + public boolean isEmpty() { + return this.count == 0; + } + + public int add(final E element) { + E[] elements = this.elements; + final int count = this.count; + this.count = count + 1; + final Comparator comparator = this.comparator; + + final int idx = insertIdx(elements, element, comparator, 0, count - 1); + + if (count >= elements.length) { + // copy and insert at the same time + if (idx == count) { + this.elements = elements = Arrays.copyOf(elements, (int)Math.max(4L, count * 2L)); // overflow results in negative + elements[count] = element; + return idx; + } else { + final E[] newElements = (E[])Array.newInstance(elements.getClass().getComponentType(), (int)Math.max(4L, count * 2L)); + System.arraycopy(elements, 0, newElements, 0, idx); + newElements[idx] = element; + System.arraycopy(elements, idx, newElements, idx + 1, count - idx); + this.elements = newElements; + return idx; + } + } else { + if (idx == count) { + // no copy needed + elements[idx] = element; + return idx; + } else { + // shift elements down + System.arraycopy(elements, idx, elements, idx + 1, count - idx); + elements[idx] = element; + return idx; + } + } + } + + public E get(final int idx) { + if (idx < 0 || idx >= this.count) { + throw new IndexOutOfBoundsException(idx); + } + return this.elements[idx]; + } + + + public E remove(final E element) { + E[] elements = this.elements; + final int count = this.count; + final Comparator comparator = this.comparator; + + final int idx = Arrays.binarySearch(elements, 0, count, element, comparator); + if (idx < 0) { + return null; + } + + final int last = this.count - 1; + this.count = last; + + final E ret = elements[idx]; + + System.arraycopy(elements, idx + 1, elements, idx, last - idx); + + elements[last] = null; + + return ret; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/Int2IntArraySortedMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/Int2IntArraySortedMap.java new file mode 100644 index 0000000000000000000000000000000000000000..62caf61a4b0b7ebc764006ea8bbd0274594d9f4a --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/Int2IntArraySortedMap.java @@ -0,0 +1,77 @@ +package ca.spottedleaf.moonrise.common.map; + +import it.unimi.dsi.fastutil.ints.Int2IntFunction; + +import java.util.Arrays; + +public class Int2IntArraySortedMap { + + protected int[] key; + protected int[] val; + protected int size; + + public Int2IntArraySortedMap() { + this.key = new int[8]; + this.val = new int[8]; + } + + public int put(final int key, final int value) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + final int current = this.val[index]; + this.val[index] = value; + return current; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + this.val[insert] = value; + + return 0; + } + + public int computeIfAbsent(final int key, final Int2IntFunction producer) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + return this.val[index]; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + + return this.val[insert] = producer.apply(key); + } + + public int get(final int key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + return 0; + } + return this.val[index]; + } + + public int getFloor(final int key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + final int insert = -(index + 1) - 1; + return insert < 0 ? 0 : this.val[insert]; + } + return this.val[index]; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/Int2ObjectArraySortedMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/Int2ObjectArraySortedMap.java new file mode 100644 index 0000000000000000000000000000000000000000..fea9e8ba7caaf6259614090d4f872619470d32f9 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/Int2ObjectArraySortedMap.java @@ -0,0 +1,74 @@ +package ca.spottedleaf.moonrise.common.map; + +import java.util.Arrays; +import java.util.function.IntFunction; + +public class Int2ObjectArraySortedMap { + + protected int[] key; + protected V[] val; + protected int size; + + public Int2ObjectArraySortedMap() { + this.key = new int[8]; + this.val = (V[])new Object[8]; + } + + public V put(final int key, final V value) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + final V current = this.val[index]; + this.val[index] = value; + return current; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + + this.key[insert] = key; + this.val[insert] = value; + + return null; + } + + public V computeIfAbsent(final int key, final IntFunction producer) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + return this.val[index]; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + + this.key[insert] = key; + + return this.val[insert] = producer.apply(key); + } + + public V get(final int key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + return null; + } + return this.val[index]; + } + + public V getFloor(final int key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + final int insert = -(index + 1); + return this.val[insert]; + } + return this.val[index]; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/Long2IntArraySortedMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/Long2IntArraySortedMap.java new file mode 100644 index 0000000000000000000000000000000000000000..c077ca606934e9f13da3a8e2a194f82a99fe9ae9 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/Long2IntArraySortedMap.java @@ -0,0 +1,77 @@ +package ca.spottedleaf.moonrise.common.map; + +import it.unimi.dsi.fastutil.longs.Long2IntFunction; + +import java.util.Arrays; + +public class Long2IntArraySortedMap { + + protected long[] key; + protected int[] val; + protected int size; + + public Long2IntArraySortedMap() { + this.key = new long[8]; + this.val = new int[8]; + } + + public int put(final long key, final int value) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + final int current = this.val[index]; + this.val[index] = value; + return current; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + this.val[insert] = value; + + return 0; + } + + public int computeIfAbsent(final long key, final Long2IntFunction producer) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + return this.val[index]; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + + return this.val[insert] = producer.apply(key); + } + + public int get(final long key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + return 0; + } + return this.val[index]; + } + + public int getFloor(final long key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + final int insert = -(index + 1) - 1; + return insert < 0 ? 0 : this.val[insert]; + } + return this.val[index]; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/Long2ObjectArraySortedMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/Long2ObjectArraySortedMap.java new file mode 100644 index 0000000000000000000000000000000000000000..b24d037af5709196b66c79c692e1814cd5b20e49 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/Long2ObjectArraySortedMap.java @@ -0,0 +1,76 @@ +package ca.spottedleaf.moonrise.common.map; + +import java.util.Arrays; +import java.util.function.LongFunction; + +public class Long2ObjectArraySortedMap { + + protected long[] key; + protected V[] val; + protected int size; + + public Long2ObjectArraySortedMap() { + this.key = new long[8]; + this.val = (V[])new Object[8]; + } + + public V put(final long key, final V value) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + final V current = this.val[index]; + this.val[index] = value; + return current; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + this.val[insert] = value; + + return null; + } + + public V computeIfAbsent(final long key, final LongFunction producer) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index >= 0) { + return this.val[index]; + } + final int insert = -(index + 1); + // shift entries down + if (this.size >= this.val.length) { + this.key = Arrays.copyOf(this.key, this.key.length * 2); + this.val = Arrays.copyOf(this.val, this.val.length * 2); + } + System.arraycopy(this.key, insert, this.key, insert + 1, this.size - insert); + System.arraycopy(this.val, insert, this.val, insert + 1, this.size - insert); + ++this.size; + + this.key[insert] = key; + + return this.val[insert] = producer.apply(key); + } + + public V get(final long key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + return null; + } + return this.val[index]; + } + + public V getFloor(final long key) { + final int index = Arrays.binarySearch(this.key, 0, this.size, key); + if (index < 0) { + final int insert = -(index + 1) - 1; + return insert < 0 ? null : this.val[insert]; + } + return this.val[index]; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2BooleanMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2BooleanMap.java new file mode 100644 index 0000000000000000000000000000000000000000..aa86882bb7b0712f29d7344009093c0e7a81be84 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2BooleanMap.java @@ -0,0 +1,48 @@ +package ca.spottedleaf.moonrise.common.map; + +import it.unimi.dsi.fastutil.longs.Long2BooleanFunction; +import it.unimi.dsi.fastutil.longs.Long2BooleanLinkedOpenHashMap; + +public final class SynchronisedLong2BooleanMap { + private final Long2BooleanLinkedOpenHashMap map = new Long2BooleanLinkedOpenHashMap(); + private final int limit; + + public SynchronisedLong2BooleanMap(final int limit) { + this.limit = limit; + } + + // must hold lock on map + private void purgeEntries() { + while (this.map.size() > this.limit) { + this.map.removeLastBoolean(); + } + } + + public boolean remove(final long key) { + synchronized (this.map) { + return this.map.remove(key); + } + } + + // note: + public boolean getOrCompute(final long key, final Long2BooleanFunction ifAbsent) { + synchronized (this.map) { + if (this.map.containsKey(key)) { + return this.map.getAndMoveToFirst(key); + } + } + + final boolean put = ifAbsent.get(key); + + synchronized (this.map) { + if (this.map.containsKey(key)) { + return this.map.getAndMoveToFirst(key); + } + this.map.putAndMoveToFirst(key, put); + + this.purgeEntries(); + + return put; + } + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2ObjectMap.java b/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2ObjectMap.java new file mode 100644 index 0000000000000000000000000000000000000000..dbb51afc6cefe0071fe3ddcd2c1109f2755c3b4d --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/map/SynchronisedLong2ObjectMap.java @@ -0,0 +1,47 @@ +package ca.spottedleaf.moonrise.common.map; + +import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap; +import java.util.function.BiFunction; + +public final class SynchronisedLong2ObjectMap { + private final Long2ObjectLinkedOpenHashMap map = new Long2ObjectLinkedOpenHashMap<>(); + private final int limit; + + public SynchronisedLong2ObjectMap(final int limit) { + this.limit = limit; + } + + // must hold lock on map + private void purgeEntries() { + while (this.map.size() > this.limit) { + this.map.removeLast(); + } + } + + public V get(final long key) { + synchronized (this.map) { + return this.map.getAndMoveToFirst(key); + } + } + + public V put(final long key, final V value) { + synchronized (this.map) { + final V ret = this.map.putAndMoveToFirst(key, value); + this.purgeEntries(); + return ret; + } + } + + public V compute(final long key, final BiFunction remappingFunction) { + synchronized (this.map) { + // first, compute the value - if one is added, it will be at the last entry + this.map.compute(key, remappingFunction); + // move the entry to first, just in case it was added at last + final V ret = this.map.getAndMoveToFirst(key); + // now purge the last entries + this.purgeEntries(); + + return ret; + } + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/common/misc/AllocatingRateLimiter.java b/src/main/java/ca/spottedleaf/moonrise/common/misc/AllocatingRateLimiter.java new file mode 100644 index 0000000000000000000000000000000000000000..9c0eff9017b24bb65b1029cefb5d0bfcb9beff01 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/misc/AllocatingRateLimiter.java @@ -0,0 +1,75 @@ +package ca.spottedleaf.moonrise.common.misc; + +public final class AllocatingRateLimiter { + + // max difference granularity in ns + private final long maxGranularity; + + private double allocation = 0.0; + private long lastAllocationUpdate; + // the carry is used to store the remainder of the last take, so that the take amount remains the same (minus floating point error) + // over any time period using take regardless of the number of take calls or the intervals between the take calls + // i.e. take obtains 3.5 elements, stores 0.5 to this field for the next take() call to use and returns 3 + private double takeCarry = 0.0; + private long lastTakeUpdate; + + public AllocatingRateLimiter(final long maxGranularity) { + this.maxGranularity = maxGranularity; + } + + public void reset(final long time) { + this.allocation = 0.0; + this.lastAllocationUpdate = time; + this.takeCarry = 0.0; + this.lastTakeUpdate = time; + } + + // rate in units/s, and time in ns + public void tickAllocation(final long time, final double rate, final double maxAllocation) { + final long diff = Math.min(this.maxGranularity, time - this.lastAllocationUpdate); + this.lastAllocationUpdate = time; + + this.allocation = Math.min(maxAllocation - this.takeCarry, this.allocation + rate * (diff*1.0E-9D)); + } + + public long previewAllocation(final long time, final double rate, final long maxTake) { + if (maxTake < 1L) { + return 0L; + } + + final long diff = Math.min(this.maxGranularity, time - this.lastTakeUpdate); + + // note: abs(takeCarry) <= 1.0 + final double take = Math.min( + Math.min((double)maxTake - this.takeCarry, this.allocation), + rate * (diff*1.0E-9) + ); + + return (long)Math.floor(this.takeCarry + take); + } + + // rate in units/s, and time in ns + public long takeAllocation(final long time, final double rate, final long maxTake) { + if (maxTake < 1L) { + return 0L; + } + + double ret = this.takeCarry; + final long diff = Math.min(this.maxGranularity, time - this.lastTakeUpdate); + this.lastTakeUpdate = time; + + // note: abs(takeCarry) <= 1.0 + final double take = Math.min( + Math.min((double)maxTake - this.takeCarry, this.allocation), + rate * (diff*1.0E-9) + ); + + ret += take; + this.allocation -= take; + + final long retInteger = (long)Math.floor(ret); + this.takeCarry = ret - (double)retInteger; + + return retInteger; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed26WayDistancePropagator3D.java b/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed26WayDistancePropagator3D.java new file mode 100644 index 0000000000000000000000000000000000000000..460e27ab0506c83a28934800ee74ee886d4b025e --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed26WayDistancePropagator3D.java @@ -0,0 +1,297 @@ +package ca.spottedleaf.moonrise.common.misc; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import it.unimi.dsi.fastutil.longs.Long2ByteOpenHashMap; +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet; + +public final class Delayed26WayDistancePropagator3D { + + // this map is considered "stale" unless updates are propagated. + protected final Delayed8WayDistancePropagator2D.LevelMap levels = new Delayed8WayDistancePropagator2D.LevelMap(8192*2, 0.6f); + + // this map is never stale + protected final Long2ByteOpenHashMap sources = new Long2ByteOpenHashMap(4096, 0.6f); + + // Generally updates to positions are made close to other updates, so we link to decrease cache misses when + // propagating updates + protected final LongLinkedOpenHashSet updatedSources = new LongLinkedOpenHashSet(); + + @FunctionalInterface + public static interface LevelChangeCallback { + + /** + * This can be called for intermediate updates. So do not rely on newLevel being close to or + * the exact level that is expected after a full propagation has occured. + */ + public void onLevelUpdate(final long coordinate, final byte oldLevel, final byte newLevel); + + } + + protected final LevelChangeCallback changeCallback; + + public Delayed26WayDistancePropagator3D() { + this(null); + } + + public Delayed26WayDistancePropagator3D(final LevelChangeCallback changeCallback) { + this.changeCallback = changeCallback; + } + + public int getLevel(final long pos) { + return this.levels.get(pos); + } + + public int getLevel(final int x, final int y, final int z) { + return this.levels.get(CoordinateUtils.getChunkSectionKey(x, y, z)); + } + + public void setSource(final int x, final int y, final int z, final int level) { + this.setSource(CoordinateUtils.getChunkSectionKey(x, y, z), level); + } + + public void setSource(final long coordinate, final int level) { + if ((level & 63) != level || level == 0) { + throw new IllegalArgumentException("Level must be in (0, 63], not " + level); + } + + final byte byteLevel = (byte)level; + final byte oldLevel = this.sources.put(coordinate, byteLevel); + + if (oldLevel == byteLevel) { + return; // nothing to do + } + + // queue to update later + this.updatedSources.add(coordinate); + } + + public void removeSource(final int x, final int y, final int z) { + this.removeSource(CoordinateUtils.getChunkSectionKey(x, y, z)); + } + + public void removeSource(final long coordinate) { + if (this.sources.remove(coordinate) != 0) { + this.updatedSources.add(coordinate); + } + } + + // queues used for BFS propagating levels + protected final Delayed8WayDistancePropagator2D.WorkQueue[] levelIncreaseWorkQueues = new Delayed8WayDistancePropagator2D.WorkQueue[64]; + { + for (int i = 0; i < this.levelIncreaseWorkQueues.length; ++i) { + this.levelIncreaseWorkQueues[i] = new Delayed8WayDistancePropagator2D.WorkQueue(); + } + } + protected final Delayed8WayDistancePropagator2D.WorkQueue[] levelRemoveWorkQueues = new Delayed8WayDistancePropagator2D.WorkQueue[64]; + { + for (int i = 0; i < this.levelRemoveWorkQueues.length; ++i) { + this.levelRemoveWorkQueues[i] = new Delayed8WayDistancePropagator2D.WorkQueue(); + } + } + protected long levelIncreaseWorkQueueBitset; + protected long levelRemoveWorkQueueBitset; + + protected final void addToIncreaseWorkQueue(final long coordinate, final byte level) { + final Delayed8WayDistancePropagator2D.WorkQueue queue = this.levelIncreaseWorkQueues[level]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelIncreaseWorkQueueBitset |= (1L << level); + } + + protected final void addToIncreaseWorkQueue(final long coordinate, final byte index, final byte level) { + final Delayed8WayDistancePropagator2D.WorkQueue queue = this.levelIncreaseWorkQueues[index]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelIncreaseWorkQueueBitset |= (1L << index); + } + + protected final void addToRemoveWorkQueue(final long coordinate, final byte level) { + final Delayed8WayDistancePropagator2D.WorkQueue queue = this.levelRemoveWorkQueues[level]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelRemoveWorkQueueBitset |= (1L << level); + } + + public boolean propagateUpdates() { + if (this.updatedSources.isEmpty()) { + return false; + } + + boolean ret = false; + + for (final LongIterator iterator = this.updatedSources.iterator(); iterator.hasNext();) { + final long coordinate = iterator.nextLong(); + + final byte currentLevel = this.levels.get(coordinate); + final byte updatedSource = this.sources.get(coordinate); + + if (currentLevel == updatedSource) { + continue; + } + ret = true; + + if (updatedSource > currentLevel) { + // level increase + this.addToIncreaseWorkQueue(coordinate, updatedSource); + } else { + // level decrease + this.addToRemoveWorkQueue(coordinate, currentLevel); + // if the current coordinate is a source, then the decrease propagation will detect that and queue + // the source propagation + } + } + + this.updatedSources.clear(); + + // propagate source level increases first for performance reasons (in crowded areas hopefully the additions + // make the removes remove less) + this.propagateIncreases(); + + // now we propagate the decreases (which will then re-propagate clobbered sources) + this.propagateDecreases(); + + return ret; + } + + protected void propagateIncreases() { + for (int queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelIncreaseWorkQueueBitset); + this.levelIncreaseWorkQueueBitset != 0L; + this.levelIncreaseWorkQueueBitset ^= (1L << queueIndex), queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelIncreaseWorkQueueBitset)) { + + final Delayed8WayDistancePropagator2D.WorkQueue queue = this.levelIncreaseWorkQueues[queueIndex]; + while (!queue.queuedLevels.isEmpty()) { + final long coordinate = queue.queuedCoordinates.removeFirstLong(); + byte level = queue.queuedLevels.removeFirstByte(); + + final boolean neighbourCheck = level < 0; + + final byte currentLevel; + if (neighbourCheck) { + level = (byte)-level; + currentLevel = this.levels.get(coordinate); + } else { + currentLevel = this.levels.putIfGreater(coordinate, level); + } + + if (neighbourCheck) { + // used when propagating from decrease to indicate that this level needs to check its neighbours + // this means the level at coordinate could be equal, but would still need neighbours checked + + if (currentLevel != level) { + // something caused the level to change, which means something propagated to it (which means + // us propagating here is redundant), or something removed the level (which means we + // cannot propagate further) + continue; + } + } else if (currentLevel >= level) { + // something higher/equal propagated + continue; + } + if (this.changeCallback != null) { + this.changeCallback.onLevelUpdate(coordinate, currentLevel, level); + } + + if (level == 1) { + // can't propagate 0 to neighbours + continue; + } + + // propagate to neighbours + final byte neighbourLevel = (byte)(level - 1); + final int x = CoordinateUtils.getChunkSectionX(coordinate); + final int y = CoordinateUtils.getChunkSectionY(coordinate); + final int z = CoordinateUtils.getChunkSectionZ(coordinate); + + for (int dy = -1; dy <= 1; ++dy) { + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + if ((dy | dz | dx) == 0) { + // already propagated to coordinate + continue; + } + + // sure we can check the neighbour level in the map right now and avoid a propagation, + // but then we would still have to recheck it when popping the value off of the queue! + // so just avoid the double lookup + final long neighbourCoordinate = CoordinateUtils.getChunkSectionKey(dx + x, dy + y, dz + z); + this.addToIncreaseWorkQueue(neighbourCoordinate, neighbourLevel); + } + } + } + } + } + } + + protected void propagateDecreases() { + for (int queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelRemoveWorkQueueBitset); + this.levelRemoveWorkQueueBitset != 0L; + this.levelRemoveWorkQueueBitset ^= (1L << queueIndex), queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelRemoveWorkQueueBitset)) { + + final Delayed8WayDistancePropagator2D.WorkQueue queue = this.levelRemoveWorkQueues[queueIndex]; + while (!queue.queuedLevels.isEmpty()) { + final long coordinate = queue.queuedCoordinates.removeFirstLong(); + final byte level = queue.queuedLevels.removeFirstByte(); + + final byte currentLevel = this.levels.removeIfGreaterOrEqual(coordinate, level); + if (currentLevel == 0) { + // something else removed + continue; + } + + if (currentLevel > level) { + // something higher propagated here or we hit the propagation of another source + // in the second case we need to re-propagate because we could have just clobbered another source's + // propagation + this.addToIncreaseWorkQueue(coordinate, currentLevel, (byte)-currentLevel); // indicate to the increase code that the level's neighbours need checking + continue; + } + + if (this.changeCallback != null) { + this.changeCallback.onLevelUpdate(coordinate, currentLevel, (byte)0); + } + + final byte source = this.sources.get(coordinate); + if (source != 0) { + // must re-propagate source later + this.addToIncreaseWorkQueue(coordinate, source); + } + + if (level == 0) { + // can't propagate -1 to neighbours + // we have to check neighbours for removing 1 just in case the neighbour is 2 + continue; + } + + // propagate to neighbours + final byte neighbourLevel = (byte)(level - 1); + final int x = CoordinateUtils.getChunkSectionX(coordinate); + final int y = CoordinateUtils.getChunkSectionY(coordinate); + final int z = CoordinateUtils.getChunkSectionZ(coordinate); + + for (int dy = -1; dy <= 1; ++dy) { + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + if ((dy | dz | dx) == 0) { + // already propagated to coordinate + continue; + } + + // sure we can check the neighbour level in the map right now and avoid a propagation, + // but then we would still have to recheck it when popping the value off of the queue! + // so just avoid the double lookup + final long neighbourCoordinate = CoordinateUtils.getChunkSectionKey(dx + x, dy + y, dz + z); + this.addToRemoveWorkQueue(neighbourCoordinate, neighbourLevel); + } + } + } + } + } + + // propagate sources we clobbered in the process + this.propagateIncreases(); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed8WayDistancePropagator2D.java b/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed8WayDistancePropagator2D.java new file mode 100644 index 0000000000000000000000000000000000000000..ab2fa1563d5e32a5313dfcc1da411cab45fb5ca0 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/misc/Delayed8WayDistancePropagator2D.java @@ -0,0 +1,718 @@ +package ca.spottedleaf.moonrise.common.misc; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import it.unimi.dsi.fastutil.HashCommon; +import it.unimi.dsi.fastutil.bytes.ByteArrayFIFOQueue; +import it.unimi.dsi.fastutil.longs.Long2ByteOpenHashMap; +import it.unimi.dsi.fastutil.longs.LongArrayFIFOQueue; +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet; + +public final class Delayed8WayDistancePropagator2D { + + // Test + /* + protected static void test(int x, int z, com.destroystokyo.paper.util.misc.DistanceTrackingAreaMap reference, Delayed8WayDistancePropagator2D test) { + int got = test.getLevel(x, z); + + int expect = 0; + Object[] nearest = reference.getObjectsInRange(x, z) == null ? null : reference.getObjectsInRange(x, z).getBackingSet(); + if (nearest != null) { + for (Object _obj : nearest) { + if (_obj instanceof Ticket) { + Ticket ticket = (Ticket)_obj; + long ticketCoord = reference.getLastCoordinate(ticket); + int viewDistance = reference.getLastViewDistance(ticket); + int distance = Math.max(com.destroystokyo.paper.util.math.IntegerUtil.branchlessAbs(MCUtil.getCoordinateX(ticketCoord) - x), + com.destroystokyo.paper.util.math.IntegerUtil.branchlessAbs(MCUtil.getCoordinateZ(ticketCoord) - z)); + int level = viewDistance - distance; + if (level > expect) { + expect = level; + } + } + } + } + + if (expect != got) { + throw new IllegalStateException("Expected " + expect + " at pos (" + x + "," + z + ") but got " + got); + } + } + + static class Ticket { + + int x; + int z; + + final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet empty + = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<>(this); + + } + + public static void main(final String[] args) { + com.destroystokyo.paper.util.misc.DistanceTrackingAreaMap reference = new com.destroystokyo.paper.util.misc.DistanceTrackingAreaMap() { + @Override + protected com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet getEmptySetFor(Ticket object) { + return object.empty; + } + }; + Delayed8WayDistancePropagator2D test = new Delayed8WayDistancePropagator2D(); + + final int maxDistance = 64; + // test origin + { + Ticket originTicket = new Ticket(); + int originDistance = 31; + // test single source + reference.add(originTicket, 0, 0, originDistance); + test.setSource(0, 0, originDistance); test.propagateUpdates(); // set and propagate + for (int dx = -originDistance; dx <= originDistance; ++dx) { + for (int dz = -originDistance; dz <= originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + // test single source decrease + reference.update(originTicket, 0, 0, originDistance/2); + test.setSource(0, 0, originDistance/2); test.propagateUpdates(); // set and propagate + for (int dx = -originDistance; dx <= originDistance; ++dx) { + for (int dz = -originDistance; dz <= originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + // test source increase + originDistance = 2*originDistance; + reference.update(originTicket, 0, 0, originDistance); + test.setSource(0, 0, originDistance); test.propagateUpdates(); // set and propagate + for (int dx = -4*originDistance; dx <= 4*originDistance; ++dx) { + for (int dz = -4*originDistance; dz <= 4*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + reference.remove(originTicket); + test.removeSource(0, 0); test.propagateUpdates(); + } + + // test multiple sources at origin + { + int originDistance = 31; + java.util.List list = new java.util.ArrayList<>(); + for (int i = 0; i < 10; ++i) { + Ticket a = new Ticket(); + list.add(a); + a.x = (i & 1) == 1 ? -i : i; + a.z = (i & 1) == 1 ? -i : i; + } + for (Ticket ticket : list) { + reference.add(ticket, ticket.x, ticket.z, originDistance); + test.setSource(ticket.x, ticket.z, originDistance); + } + test.propagateUpdates(); + + for (int dx = -8*originDistance; dx <= 8*originDistance; ++dx) { + for (int dz = -8*originDistance; dz <= 8*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket level decrease + + for (Ticket ticket : list) { + reference.update(ticket, ticket.x, ticket.z, originDistance/2); + test.setSource(ticket.x, ticket.z, originDistance/2); + } + test.propagateUpdates(); + + for (int dx = -8*originDistance; dx <= 8*originDistance; ++dx) { + for (int dz = -8*originDistance; dz <= 8*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket level increase + + for (Ticket ticket : list) { + reference.update(ticket, ticket.x, ticket.z, originDistance*2); + test.setSource(ticket.x, ticket.z, originDistance*2); + } + test.propagateUpdates(); + + for (int dx = -16*originDistance; dx <= 16*originDistance; ++dx) { + for (int dz = -16*originDistance; dz <= 16*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket remove + for (int i = 0, len = list.size(); i < len; ++i) { + if ((i & 3) != 0) { + continue; + } + Ticket ticket = list.get(i); + reference.remove(ticket); + test.removeSource(ticket.x, ticket.z); + } + test.propagateUpdates(); + + for (int dx = -16*originDistance; dx <= 16*originDistance; ++dx) { + for (int dz = -16*originDistance; dz <= 16*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + } + + // now test at coordinate offsets + // test offset + { + Ticket originTicket = new Ticket(); + int originDistance = 31; + int offX = 54432; + int offZ = -134567; + // test single source + reference.add(originTicket, offX, offZ, originDistance); + test.setSource(offX, offZ, originDistance); test.propagateUpdates(); // set and propagate + for (int dx = -originDistance; dx <= originDistance; ++dx) { + for (int dz = -originDistance; dz <= originDistance; ++dz) { + test(dx + offX, dz + offZ, reference, test); + } + } + // test single source decrease + reference.update(originTicket, offX, offZ, originDistance/2); + test.setSource(offX, offZ, originDistance/2); test.propagateUpdates(); // set and propagate + for (int dx = -originDistance; dx <= originDistance; ++dx) { + for (int dz = -originDistance; dz <= originDistance; ++dz) { + test(dx + offX, dz + offZ, reference, test); + } + } + // test source increase + originDistance = 2*originDistance; + reference.update(originTicket, offX, offZ, originDistance); + test.setSource(offX, offZ, originDistance); test.propagateUpdates(); // set and propagate + for (int dx = -4*originDistance; dx <= 4*originDistance; ++dx) { + for (int dz = -4*originDistance; dz <= 4*originDistance; ++dz) { + test(dx + offX, dz + offZ, reference, test); + } + } + + reference.remove(originTicket); + test.removeSource(offX, offZ); test.propagateUpdates(); + } + + // test multiple sources at origin + { + int originDistance = 31; + int offX = 54432; + int offZ = -134567; + java.util.List list = new java.util.ArrayList<>(); + for (int i = 0; i < 10; ++i) { + Ticket a = new Ticket(); + list.add(a); + a.x = offX + ((i & 1) == 1 ? -i : i); + a.z = offZ + ((i & 1) == 1 ? -i : i); + } + for (Ticket ticket : list) { + reference.add(ticket, ticket.x, ticket.z, originDistance); + test.setSource(ticket.x, ticket.z, originDistance); + } + test.propagateUpdates(); + + for (int dx = -8*originDistance; dx <= 8*originDistance; ++dx) { + for (int dz = -8*originDistance; dz <= 8*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket level decrease + + for (Ticket ticket : list) { + reference.update(ticket, ticket.x, ticket.z, originDistance/2); + test.setSource(ticket.x, ticket.z, originDistance/2); + } + test.propagateUpdates(); + + for (int dx = -8*originDistance; dx <= 8*originDistance; ++dx) { + for (int dz = -8*originDistance; dz <= 8*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket level increase + + for (Ticket ticket : list) { + reference.update(ticket, ticket.x, ticket.z, originDistance*2); + test.setSource(ticket.x, ticket.z, originDistance*2); + } + test.propagateUpdates(); + + for (int dx = -16*originDistance; dx <= 16*originDistance; ++dx) { + for (int dz = -16*originDistance; dz <= 16*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + + // test ticket remove + for (int i = 0, len = list.size(); i < len; ++i) { + if ((i & 3) != 0) { + continue; + } + Ticket ticket = list.get(i); + reference.remove(ticket); + test.removeSource(ticket.x, ticket.z); + } + test.propagateUpdates(); + + for (int dx = -16*originDistance; dx <= 16*originDistance; ++dx) { + for (int dz = -16*originDistance; dz <= 16*originDistance; ++dz) { + test(dx, dz, reference, test); + } + } + } + } + */ + + // this map is considered "stale" unless updates are propagated. + protected final LevelMap levels = new LevelMap(8192*2, 0.6f); + + // this map is never stale + protected final Long2ByteOpenHashMap sources = new Long2ByteOpenHashMap(4096, 0.6f); + + // Generally updates to positions are made close to other updates, so we link to decrease cache misses when + // propagating updates + protected final LongLinkedOpenHashSet updatedSources = new LongLinkedOpenHashSet(); + + @FunctionalInterface + public static interface LevelChangeCallback { + + /** + * This can be called for intermediate updates. So do not rely on newLevel being close to or + * the exact level that is expected after a full propagation has occured. + */ + public void onLevelUpdate(final long coordinate, final byte oldLevel, final byte newLevel); + + } + + protected final LevelChangeCallback changeCallback; + + public Delayed8WayDistancePropagator2D() { + this(null); + } + + public Delayed8WayDistancePropagator2D(final LevelChangeCallback changeCallback) { + this.changeCallback = changeCallback; + } + + public int getLevel(final long pos) { + return this.levels.get(pos); + } + + public int getLevel(final int x, final int z) { + return this.levels.get(CoordinateUtils.getChunkKey(x, z)); + } + + public void setSource(final int x, final int z, final int level) { + this.setSource(CoordinateUtils.getChunkKey(x, z), level); + } + + public void setSource(final long coordinate, final int level) { + if ((level & 63) != level || level == 0) { + throw new IllegalArgumentException("Level must be in (0, 63], not " + level); + } + + final byte byteLevel = (byte)level; + final byte oldLevel = this.sources.put(coordinate, byteLevel); + + if (oldLevel == byteLevel) { + return; // nothing to do + } + + // queue to update later + this.updatedSources.add(coordinate); + } + + public void removeSource(final int x, final int z) { + this.removeSource(CoordinateUtils.getChunkKey(x, z)); + } + + public void removeSource(final long coordinate) { + if (this.sources.remove(coordinate) != 0) { + this.updatedSources.add(coordinate); + } + } + + // queues used for BFS propagating levels + protected final WorkQueue[] levelIncreaseWorkQueues = new WorkQueue[64]; + { + for (int i = 0; i < this.levelIncreaseWorkQueues.length; ++i) { + this.levelIncreaseWorkQueues[i] = new WorkQueue(); + } + } + protected final WorkQueue[] levelRemoveWorkQueues = new WorkQueue[64]; + { + for (int i = 0; i < this.levelRemoveWorkQueues.length; ++i) { + this.levelRemoveWorkQueues[i] = new WorkQueue(); + } + } + protected long levelIncreaseWorkQueueBitset; + protected long levelRemoveWorkQueueBitset; + + protected final void addToIncreaseWorkQueue(final long coordinate, final byte level) { + final WorkQueue queue = this.levelIncreaseWorkQueues[level]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelIncreaseWorkQueueBitset |= (1L << level); + } + + protected final void addToIncreaseWorkQueue(final long coordinate, final byte index, final byte level) { + final WorkQueue queue = this.levelIncreaseWorkQueues[index]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelIncreaseWorkQueueBitset |= (1L << index); + } + + protected final void addToRemoveWorkQueue(final long coordinate, final byte level) { + final WorkQueue queue = this.levelRemoveWorkQueues[level]; + queue.queuedCoordinates.enqueue(coordinate); + queue.queuedLevels.enqueue(level); + + this.levelRemoveWorkQueueBitset |= (1L << level); + } + + public boolean propagateUpdates() { + if (this.updatedSources.isEmpty()) { + return false; + } + + boolean ret = false; + + for (final LongIterator iterator = this.updatedSources.iterator(); iterator.hasNext();) { + final long coordinate = iterator.nextLong(); + + final byte currentLevel = this.levels.get(coordinate); + final byte updatedSource = this.sources.get(coordinate); + + if (currentLevel == updatedSource) { + continue; + } + ret = true; + + if (updatedSource > currentLevel) { + // level increase + this.addToIncreaseWorkQueue(coordinate, updatedSource); + } else { + // level decrease + this.addToRemoveWorkQueue(coordinate, currentLevel); + // if the current coordinate is a source, then the decrease propagation will detect that and queue + // the source propagation + } + } + + this.updatedSources.clear(); + + // propagate source level increases first for performance reasons (in crowded areas hopefully the additions + // make the removes remove less) + this.propagateIncreases(); + + // now we propagate the decreases (which will then re-propagate clobbered sources) + this.propagateDecreases(); + + return ret; + } + + protected void propagateIncreases() { + for (int queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelIncreaseWorkQueueBitset); + this.levelIncreaseWorkQueueBitset != 0L; + this.levelIncreaseWorkQueueBitset ^= (1L << queueIndex), queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelIncreaseWorkQueueBitset)) { + + final WorkQueue queue = this.levelIncreaseWorkQueues[queueIndex]; + while (!queue.queuedLevels.isEmpty()) { + final long coordinate = queue.queuedCoordinates.removeFirstLong(); + byte level = queue.queuedLevels.removeFirstByte(); + + final boolean neighbourCheck = level < 0; + + final byte currentLevel; + if (neighbourCheck) { + level = (byte)-level; + currentLevel = this.levels.get(coordinate); + } else { + currentLevel = this.levels.putIfGreater(coordinate, level); + } + + if (neighbourCheck) { + // used when propagating from decrease to indicate that this level needs to check its neighbours + // this means the level at coordinate could be equal, but would still need neighbours checked + + if (currentLevel != level) { + // something caused the level to change, which means something propagated to it (which means + // us propagating here is redundant), or something removed the level (which means we + // cannot propagate further) + continue; + } + } else if (currentLevel >= level) { + // something higher/equal propagated + continue; + } + if (this.changeCallback != null) { + this.changeCallback.onLevelUpdate(coordinate, currentLevel, level); + } + + if (level == 1) { + // can't propagate 0 to neighbours + continue; + } + + // propagate to neighbours + final byte neighbourLevel = (byte)(level - 1); + final int x = (int)coordinate; + final int z = (int)(coordinate >>> 32); + + for (int dx = -1; dx <= 1; ++dx) { + for (int dz = -1; dz <= 1; ++dz) { + if ((dx | dz) == 0) { + // already propagated to coordinate + continue; + } + + // sure we can check the neighbour level in the map right now and avoid a propagation, + // but then we would still have to recheck it when popping the value off of the queue! + // so just avoid the double lookup + final long neighbourCoordinate = CoordinateUtils.getChunkKey(x + dx, z + dz); + this.addToIncreaseWorkQueue(neighbourCoordinate, neighbourLevel); + } + } + } + } + } + + protected void propagateDecreases() { + for (int queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelRemoveWorkQueueBitset); + this.levelRemoveWorkQueueBitset != 0L; + this.levelRemoveWorkQueueBitset ^= (1L << queueIndex), queueIndex = 63 ^ Long.numberOfLeadingZeros(this.levelRemoveWorkQueueBitset)) { + + final WorkQueue queue = this.levelRemoveWorkQueues[queueIndex]; + while (!queue.queuedLevels.isEmpty()) { + final long coordinate = queue.queuedCoordinates.removeFirstLong(); + final byte level = queue.queuedLevels.removeFirstByte(); + + final byte currentLevel = this.levels.removeIfGreaterOrEqual(coordinate, level); + if (currentLevel == 0) { + // something else removed + continue; + } + + if (currentLevel > level) { + // something higher propagated here or we hit the propagation of another source + // in the second case we need to re-propagate because we could have just clobbered another source's + // propagation + this.addToIncreaseWorkQueue(coordinate, currentLevel, (byte)-currentLevel); // indicate to the increase code that the level's neighbours need checking + continue; + } + + if (this.changeCallback != null) { + this.changeCallback.onLevelUpdate(coordinate, currentLevel, (byte)0); + } + + final byte source = this.sources.get(coordinate); + if (source != 0) { + // must re-propagate source later + this.addToIncreaseWorkQueue(coordinate, source); + } + + if (level == 0) { + // can't propagate -1 to neighbours + // we have to check neighbours for removing 1 just in case the neighbour is 2 + continue; + } + + // propagate to neighbours + final byte neighbourLevel = (byte)(level - 1); + final int x = (int)coordinate; + final int z = (int)(coordinate >>> 32); + + for (int dx = -1; dx <= 1; ++dx) { + for (int dz = -1; dz <= 1; ++dz) { + if ((dx | dz) == 0) { + // already propagated to coordinate + continue; + } + + // sure we can check the neighbour level in the map right now and avoid a propagation, + // but then we would still have to recheck it when popping the value off of the queue! + // so just avoid the double lookup + final long neighbourCoordinate = CoordinateUtils.getChunkKey(x + dx, z + dz); + this.addToRemoveWorkQueue(neighbourCoordinate, neighbourLevel); + } + } + } + } + + // propagate sources we clobbered in the process + this.propagateIncreases(); + } + + protected static final class LevelMap extends Long2ByteOpenHashMap { + public LevelMap() { + super(); + } + + public LevelMap(final int expected, final float loadFactor) { + super(expected, loadFactor); + } + + // copied from superclass + private int find(final long k) { + if (k == 0L) { + return this.containsNullKey ? this.n : -(this.n + 1); + } else { + final long[] key = this.key; + long curr; + int pos; + if ((curr = key[pos = (int)HashCommon.mix(k) & this.mask]) == 0L) { + return -(pos + 1); + } else if (k == curr) { + return pos; + } else { + while((curr = key[pos = pos + 1 & this.mask]) != 0L) { + if (k == curr) { + return pos; + } + } + + return -(pos + 1); + } + } + } + + // copied from superclass + private void insert(final int pos, final long k, final byte v) { + if (pos == this.n) { + this.containsNullKey = true; + } + + this.key[pos] = k; + this.value[pos] = v; + if (this.size++ >= this.maxFill) { + this.rehash(HashCommon.arraySize(this.size + 1, this.f)); + } + } + + // copied from superclass + public byte putIfGreater(final long key, final byte value) { + final int pos = this.find(key); + if (pos < 0) { + if (this.defRetValue < value) { + this.insert(-pos - 1, key, value); + } + return this.defRetValue; + } else { + final byte curr = this.value[pos]; + if (value > curr) { + this.value[pos] = value; + return curr; + } + return curr; + } + } + + // copied from superclass + private void removeEntry(final int pos) { + --this.size; + this.shiftKeys(pos); + if (this.n > this.minN && this.size < this.maxFill / 4 && this.n > 16) { + this.rehash(this.n / 2); + } + } + + // copied from superclass + private void removeNullEntry() { + this.containsNullKey = false; + --this.size; + if (this.n > this.minN && this.size < this.maxFill / 4 && this.n > 16) { + this.rehash(this.n / 2); + } + } + + // copied from superclass + public byte removeIfGreaterOrEqual(final long key, final byte value) { + if (key == 0L) { + if (!this.containsNullKey) { + return this.defRetValue; + } + final byte current = this.value[this.n]; + if (value >= current) { + this.removeNullEntry(); + return current; + } + return current; + } else { + long[] keys = this.key; + byte[] values = this.value; + long curr; + int pos; + if ((curr = keys[pos = (int)HashCommon.mix(key) & this.mask]) == 0L) { + return this.defRetValue; + } else if (key == curr) { + final byte current = values[pos]; + if (value >= current) { + this.removeEntry(pos); + return current; + } + return current; + } else { + while((curr = keys[pos = pos + 1 & this.mask]) != 0L) { + if (key == curr) { + final byte current = values[pos]; + if (value >= current) { + this.removeEntry(pos); + return current; + } + return current; + } + } + + return this.defRetValue; + } + } + } + } + + protected static final class WorkQueue { + + public final NoResizeLongArrayFIFODeque queuedCoordinates = new NoResizeLongArrayFIFODeque(); + public final NoResizeByteArrayFIFODeque queuedLevels = new NoResizeByteArrayFIFODeque(); + + } + + protected static final class NoResizeLongArrayFIFODeque extends LongArrayFIFOQueue { + + /** + * Assumes non-empty. If empty, undefined behaviour. + */ + public long removeFirstLong() { + // copied from superclass + long t = this.array[this.start]; + if (++this.start == this.length) { + this.start = 0; + } + + return t; + } + } + + protected static final class NoResizeByteArrayFIFODeque extends ByteArrayFIFOQueue { + + /** + * Assumes non-empty. If empty, undefined behaviour. + */ + public byte removeFirstByte() { + // copied from superclass + byte t = this.array[this.start]; + if (++this.start == this.length) { + this.start = 0; + } + + return t; + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/misc/SingleUserAreaMap.java b/src/main/java/ca/spottedleaf/moonrise/common/misc/SingleUserAreaMap.java new file mode 100644 index 0000000000000000000000000000000000000000..61f70247486fd15ed3ffc5b606582dc6a2dd81d3 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/misc/SingleUserAreaMap.java @@ -0,0 +1,232 @@ +package ca.spottedleaf.moonrise.common.misc; + +import ca.spottedleaf.concurrentutil.util.IntegerUtil; + +public abstract class SingleUserAreaMap { + + private static final int NOT_SET = Integer.MIN_VALUE; + + private final T parameter; + private int lastChunkX = NOT_SET; + private int lastChunkZ = NOT_SET; + private int distance = NOT_SET; + + public SingleUserAreaMap(final T parameter) { + this.parameter = parameter; + } + + /* math sign function except 0 returns 1 */ + protected static int sign(int val) { + return 1 | (val >> (Integer.SIZE - 1)); + } + + protected abstract void addCallback(final T parameter, final int chunkX, final int chunkZ); + + protected abstract void removeCallback(final T parameter, final int chunkX, final int chunkZ); + + private void addToNew(final T parameter, final int chunkX, final int chunkZ, final int distance) { + final int maxX = chunkX + distance; + final int maxZ = chunkZ + distance; + + for (int cx = chunkX - distance; cx <= maxX; ++cx) { + for (int cz = chunkZ - distance; cz <= maxZ; ++cz) { + this.addCallback(parameter, cx, cz); + } + } + } + + private void removeFromOld(final T parameter, final int chunkX, final int chunkZ, final int distance) { + final int maxX = chunkX + distance; + final int maxZ = chunkZ + distance; + + for (int cx = chunkX - distance; cx <= maxX; ++cx) { + for (int cz = chunkZ - distance; cz <= maxZ; ++cz) { + this.removeCallback(parameter, cx, cz); + } + } + } + + public final boolean add(final int chunkX, final int chunkZ, final int distance) { + if (distance < 0) { + throw new IllegalArgumentException(Integer.toString(distance)); + } + if (this.lastChunkX != NOT_SET) { + return false; + } + this.lastChunkX = chunkX; + this.lastChunkZ = chunkZ; + this.distance = distance; + + this.addToNew(this.parameter, chunkX, chunkZ, distance); + + return true; + } + + public final boolean update(final int toX, final int toZ, final int newViewDistance) { + if (newViewDistance < 0) { + throw new IllegalArgumentException(Integer.toString(newViewDistance)); + } + final int fromX = this.lastChunkX; + final int fromZ = this.lastChunkZ; + final int oldViewDistance = this.distance; + if (fromX == NOT_SET) { + return false; + } + + this.lastChunkX = toX; + this.lastChunkZ = toZ; + this.distance = newViewDistance; + + final T parameter = this.parameter; + + + final int dx = toX - fromX; + final int dz = toZ - fromZ; + + final int totalX = IntegerUtil.branchlessAbs(fromX - toX); + final int totalZ = IntegerUtil.branchlessAbs(fromZ - toZ); + + if (Math.max(totalX, totalZ) > (2 * Math.max(newViewDistance, oldViewDistance))) { + // teleported + this.removeFromOld(parameter, fromX, fromZ, oldViewDistance); + this.addToNew(parameter, toX, toZ, newViewDistance); + return true; + } + + if (oldViewDistance != newViewDistance) { + // remove loop + + final int oldMinX = fromX - oldViewDistance; + final int oldMinZ = fromZ - oldViewDistance; + final int oldMaxX = fromX + oldViewDistance; + final int oldMaxZ = fromZ + oldViewDistance; + for (int currX = oldMinX; currX <= oldMaxX; ++currX) { + for (int currZ = oldMinZ; currZ <= oldMaxZ; ++currZ) { + + // only remove if we're outside the new view distance... + if (Math.max(IntegerUtil.branchlessAbs(currX - toX), IntegerUtil.branchlessAbs(currZ - toZ)) > newViewDistance) { + this.removeCallback(parameter, currX, currZ); + } + } + } + + // add loop + + final int newMinX = toX - newViewDistance; + final int newMinZ = toZ - newViewDistance; + final int newMaxX = toX + newViewDistance; + final int newMaxZ = toZ + newViewDistance; + for (int currX = newMinX; currX <= newMaxX; ++currX) { + for (int currZ = newMinZ; currZ <= newMaxZ; ++currZ) { + + // only add if we're outside the old view distance... + if (Math.max(IntegerUtil.branchlessAbs(currX - fromX), IntegerUtil.branchlessAbs(currZ - fromZ)) > oldViewDistance) { + this.addCallback(parameter, currX, currZ); + } + } + } + + return true; + } + + // x axis is width + // z axis is height + // right refers to the x axis of where we moved + // top refers to the z axis of where we moved + + // same view distance + + // used for relative positioning + final int up = sign(dz); // 1 if dz >= 0, -1 otherwise + final int right = sign(dx); // 1 if dx >= 0, -1 otherwise + + // The area excluded by overlapping the two view distance squares creates four rectangles: + // Two on the left, and two on the right. The ones on the left we consider the "removed" section + // and on the right the "added" section. + // https://i.imgur.com/MrnOBgI.png is a reference image. Note that the outside border is not actually + // exclusive to the regions they surround. + + // 4 points of the rectangle + int maxX; // exclusive + int minX; // inclusive + int maxZ; // exclusive + int minZ; // inclusive + + if (dx != 0) { + // handle right addition + + maxX = toX + (oldViewDistance * right) + right; // exclusive + minX = fromX + (oldViewDistance * right) + right; // inclusive + maxZ = fromZ + (oldViewDistance * up) + up; // exclusive + minZ = toZ - (oldViewDistance * up); // inclusive + + for (int currX = minX; currX != maxX; currX += right) { + for (int currZ = minZ; currZ != maxZ; currZ += up) { + this.addCallback(parameter, currX, currZ); + } + } + } + + if (dz != 0) { + // handle up addition + + maxX = toX + (oldViewDistance * right) + right; // exclusive + minX = toX - (oldViewDistance * right); // inclusive + maxZ = toZ + (oldViewDistance * up) + up; // exclusive + minZ = fromZ + (oldViewDistance * up) + up; // inclusive + + for (int currX = minX; currX != maxX; currX += right) { + for (int currZ = minZ; currZ != maxZ; currZ += up) { + this.addCallback(parameter, currX, currZ); + } + } + } + + if (dx != 0) { + // handle left removal + + maxX = toX - (oldViewDistance * right); // exclusive + minX = fromX - (oldViewDistance * right); // inclusive + maxZ = fromZ + (oldViewDistance * up) + up; // exclusive + minZ = toZ - (oldViewDistance * up); // inclusive + + for (int currX = minX; currX != maxX; currX += right) { + for (int currZ = minZ; currZ != maxZ; currZ += up) { + this.removeCallback(parameter, currX, currZ); + } + } + } + + if (dz != 0) { + // handle down removal + + maxX = fromX + (oldViewDistance * right) + right; // exclusive + minX = fromX - (oldViewDistance * right); // inclusive + maxZ = toZ - (oldViewDistance * up); // exclusive + minZ = fromZ - (oldViewDistance * up); // inclusive + + for (int currX = minX; currX != maxX; currX += right) { + for (int currZ = minZ; currZ != maxZ; currZ += up) { + this.removeCallback(parameter, currX, currZ); + } + } + } + + return true; + } + + public final boolean remove() { + final int chunkX = this.lastChunkX; + final int chunkZ = this.lastChunkZ; + final int distance = this.distance; + if (chunkX == NOT_SET) { + return false; + } + + this.lastChunkX = this.lastChunkZ = this.distance = NOT_SET; + + this.removeFromOld(this.parameter, chunkX, chunkZ, distance); + + return true; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/set/OptimizedSmallEnumSet.java b/src/main/java/ca/spottedleaf/moonrise/common/set/OptimizedSmallEnumSet.java new file mode 100644 index 0000000000000000000000000000000000000000..4123edddc556c47f3f8d83523c125fd2e46b30e2 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/set/OptimizedSmallEnumSet.java @@ -0,0 +1,68 @@ +package ca.spottedleaf.moonrise.common.set; + +import java.util.Collection; + +public final class OptimizedSmallEnumSet> { + + private final Class enumClass; + private long backingSet; + + public OptimizedSmallEnumSet(final Class clazz) { + if (clazz == null) { + throw new IllegalArgumentException("Null class"); + } + if (!clazz.isEnum()) { + throw new IllegalArgumentException("Class must be enum, not " + clazz.getCanonicalName()); + } + this.enumClass = clazz; + } + + public boolean addUnchecked(final E element) { + final int ordinal = element.ordinal(); + final long key = 1L << ordinal; + + final long prev = this.backingSet; + this.backingSet = prev | key; + + return (prev & key) == 0; + } + + public boolean removeUnchecked(final E element) { + final int ordinal = element.ordinal(); + final long key = 1L << ordinal; + + final long prev = this.backingSet; + this.backingSet = prev & ~key; + + return (prev & key) != 0; + } + + public void clear() { + this.backingSet = 0L; + } + + public int size() { + return Long.bitCount(this.backingSet); + } + + public void addAllUnchecked(final Collection enums) { + for (final E element : enums) { + if (element == null) { + throw new NullPointerException("Null element"); + } + this.backingSet |= (1L << element.ordinal()); + } + } + + public long getBackingSet() { + return this.backingSet; + } + + public boolean hasCommonElements(final OptimizedSmallEnumSet other) { + return (other.backingSet & this.backingSet) != 0; + } + + public boolean hasElement(final E element) { + return (this.backingSet & (1L << element.ordinal())) != 0; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/CoordinateUtils.java b/src/main/java/ca/spottedleaf/moonrise/common/util/CoordinateUtils.java new file mode 100644 index 0000000000000000000000000000000000000000..31b92bd48828cbea25b44a9f0f96886347aa1ae6 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/CoordinateUtils.java @@ -0,0 +1,129 @@ +package ca.spottedleaf.moonrise.common.util; + +import net.minecraft.core.BlockPos; +import net.minecraft.core.SectionPos; +import net.minecraft.util.Mth; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.phys.Vec3; + +public final class CoordinateUtils { + + // the chunk keys are compatible with vanilla + + public static long getChunkKey(final BlockPos pos) { + return ((long)(pos.getZ() >> 4) << 32) | ((pos.getX() >> 4) & 0xFFFFFFFFL); + } + + public static long getChunkKey(final Entity entity) { + return ((Mth.lfloor(entity.getZ()) >> 4) << 32) | ((Mth.lfloor(entity.getX()) >> 4) & 0xFFFFFFFFL); + } + + public static long getChunkKey(final ChunkPos pos) { + return ((long)pos.z << 32) | (pos.x & 0xFFFFFFFFL); + } + + public static long getChunkKey(final SectionPos pos) { + return ((long)pos.getZ() << 32) | (pos.getX() & 0xFFFFFFFFL); + } + + public static long getChunkKey(final int x, final int z) { + return ((long)z << 32) | (x & 0xFFFFFFFFL); + } + + public static int getChunkX(final long chunkKey) { + return (int)chunkKey; + } + + public static int getChunkZ(final long chunkKey) { + return (int)(chunkKey >>> 32); + } + + public static int getChunkCoordinate(final double blockCoordinate) { + return Mth.floor(blockCoordinate) >> 4; + } + + // the section keys are compatible with vanilla's + + static final int SECTION_X_BITS = 22; + static final long SECTION_X_MASK = (1L << SECTION_X_BITS) - 1; + static final int SECTION_Y_BITS = 20; + static final long SECTION_Y_MASK = (1L << SECTION_Y_BITS) - 1; + static final int SECTION_Z_BITS = 22; + static final long SECTION_Z_MASK = (1L << SECTION_Z_BITS) - 1; + // format is y,z,x (in order of LSB to MSB) + static final int SECTION_Y_SHIFT = 0; + static final int SECTION_Z_SHIFT = SECTION_Y_SHIFT + SECTION_Y_BITS; + static final int SECTION_X_SHIFT = SECTION_Z_SHIFT + SECTION_X_BITS; + static final int SECTION_TO_BLOCK_SHIFT = 4; + + public static long getChunkSectionKey(final int x, final int y, final int z) { + return ((x & SECTION_X_MASK) << SECTION_X_SHIFT) + | ((y & SECTION_Y_MASK) << SECTION_Y_SHIFT) + | ((z & SECTION_Z_MASK) << SECTION_Z_SHIFT); + } + + public static long getChunkSectionKey(final SectionPos pos) { + return ((pos.getX() & SECTION_X_MASK) << SECTION_X_SHIFT) + | ((pos.getY() & SECTION_Y_MASK) << SECTION_Y_SHIFT) + | ((pos.getZ() & SECTION_Z_MASK) << SECTION_Z_SHIFT); + } + + public static long getChunkSectionKey(final ChunkPos pos, final int y) { + return ((pos.x & SECTION_X_MASK) << SECTION_X_SHIFT) + | ((y & SECTION_Y_MASK) << SECTION_Y_SHIFT) + | ((pos.z & SECTION_Z_MASK) << SECTION_Z_SHIFT); + } + + public static long getChunkSectionKey(final BlockPos pos) { + return (((long)pos.getX() << (SECTION_X_SHIFT - SECTION_TO_BLOCK_SHIFT)) & (SECTION_X_MASK << SECTION_X_SHIFT)) | + ((pos.getY() >> SECTION_TO_BLOCK_SHIFT) & (SECTION_Y_MASK << SECTION_Y_SHIFT)) | + (((long)pos.getZ() << (SECTION_Z_SHIFT - SECTION_TO_BLOCK_SHIFT)) & (SECTION_Z_MASK << SECTION_Z_SHIFT)); + } + + public static long getChunkSectionKey(final Entity entity) { + return ((Mth.lfloor(entity.getX()) << (SECTION_X_SHIFT - SECTION_TO_BLOCK_SHIFT)) & (SECTION_X_MASK << SECTION_X_SHIFT)) | + ((Mth.lfloor(entity.getY()) >> SECTION_TO_BLOCK_SHIFT) & (SECTION_Y_MASK << SECTION_Y_SHIFT)) | + ((Mth.lfloor(entity.getZ()) << (SECTION_Z_SHIFT - SECTION_TO_BLOCK_SHIFT)) & (SECTION_Z_MASK << SECTION_Z_SHIFT)); + } + + public static int getChunkSectionX(final long key) { + return (int)(key << (Long.SIZE - (SECTION_X_SHIFT + SECTION_X_BITS)) >> (Long.SIZE - SECTION_X_BITS)); + } + + public static int getChunkSectionY(final long key) { + return (int)(key << (Long.SIZE - (SECTION_Y_SHIFT + SECTION_Y_BITS)) >> (Long.SIZE - SECTION_Y_BITS)); + } + + public static int getChunkSectionZ(final long key) { + return (int)(key << (Long.SIZE - (SECTION_Z_SHIFT + SECTION_Z_BITS)) >> (Long.SIZE - SECTION_Z_BITS)); + } + + public static int getBlockX(final Vec3 pos) { + return Mth.floor(pos.x); + } + + public static int getBlockY(final Vec3 pos) { + return Mth.floor(pos.y); + } + + public static int getBlockZ(final Vec3 pos) { + return Mth.floor(pos.z); + } + + public static int getChunkX(final Vec3 pos) { + return Mth.floor(pos.x) >> 4; + } + + public static int getChunkY(final Vec3 pos) { + return Mth.floor(pos.y) >> 4; + } + + public static int getChunkZ(final Vec3 pos) { + return Mth.floor(pos.z) >> 4; + } + + private CoordinateUtils() { + throw new RuntimeException(); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/FlatBitsetUtil.java b/src/main/java/ca/spottedleaf/moonrise/common/util/FlatBitsetUtil.java new file mode 100644 index 0000000000000000000000000000000000000000..0531f25aaad162386a029d33e68d7c8336b9d5d1 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/FlatBitsetUtil.java @@ -0,0 +1,109 @@ +package ca.spottedleaf.moonrise.common.util; + +import java.util.Objects; + +public final class FlatBitsetUtil { + + private static final int LOG2_LONG = 6; + private static final long ALL_SET = -1L; + private static final int BITS_PER_LONG = Long.SIZE; + + // from inclusive + // to exclusive + public static int firstSet(final long[] bitset, final int from, final int to) { + if ((from | to | (to - from)) < 0) { + throw new IndexOutOfBoundsException(); + } + + int bitsetIdx = from >>> LOG2_LONG; + int bitIdx = from & ~(BITS_PER_LONG - 1); + + long tmp = bitset[bitsetIdx] & (ALL_SET << from); + for (;;) { + if (tmp != 0L) { + final int ret = bitIdx | Long.numberOfTrailingZeros(tmp); + return ret >= to ? -1 : ret; + } + + bitIdx += BITS_PER_LONG; + + if (bitIdx >= to) { + return -1; + } + + tmp = bitset[++bitsetIdx]; + } + } + + // from inclusive + // to exclusive + public static int firstClear(final long[] bitset, final int from, final int to) { + if ((from | to | (to - from)) < 0) { + throw new IndexOutOfBoundsException(); + } + // like firstSet, but invert the bitset + + int bitsetIdx = from >>> LOG2_LONG; + int bitIdx = from & ~(BITS_PER_LONG - 1); + + long tmp = (~bitset[bitsetIdx]) & (ALL_SET << from); + for (;;) { + if (tmp != 0L) { + final int ret = bitIdx | Long.numberOfTrailingZeros(tmp); + return ret >= to ? -1 : ret; + } + + bitIdx += BITS_PER_LONG; + + if (bitIdx >= to) { + return -1; + } + + tmp = ~bitset[++bitsetIdx]; + } + } + + // from inclusive + // to exclusive + public static void clearRange(final long[] bitset, final int from, int to) { + if ((from | to | (to - from)) < 0) { + throw new IndexOutOfBoundsException(); + } + + if (from == to) { + return; + } + + --to; + + final int fromBitsetIdx = from >>> LOG2_LONG; + final int toBitsetIdx = to >>> LOG2_LONG; + + final long keepFirst = ~(ALL_SET << from); + final long keepLast = ~(ALL_SET >>> ((BITS_PER_LONG - 1) ^ to)); + + Objects.checkFromToIndex(fromBitsetIdx, toBitsetIdx, bitset.length); + + if (fromBitsetIdx == toBitsetIdx) { + // special case: need to keep both first and last + bitset[fromBitsetIdx] &= (keepFirst | keepLast); + } else { + bitset[fromBitsetIdx] &= keepFirst; + + for (int i = fromBitsetIdx + 1; i < toBitsetIdx; ++i) { + bitset[i] = 0L; + } + + bitset[toBitsetIdx] &= keepLast; + } + } + + // from inclusive + // to exclusive + public static boolean isRangeSet(final long[] bitset, final int from, final int to) { + return firstClear(bitset, from, to) == -1; + } + + + private FlatBitsetUtil() {} +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/MixinWorkarounds.java b/src/main/java/ca/spottedleaf/moonrise/common/util/MixinWorkarounds.java new file mode 100644 index 0000000000000000000000000000000000000000..ac6f284ee4469d16c5655328b2488d7612832353 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/MixinWorkarounds.java @@ -0,0 +1,10 @@ +package ca.spottedleaf.moonrise.common.util; + +public final class MixinWorkarounds { + + // mixins tries to find the owner of the clone() method, which doesn't exist and NPEs + public static long[] clone(final long[] values) { + return values.clone(); + } + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseCommon.java b/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseCommon.java new file mode 100644 index 0000000000000000000000000000000000000000..ef1c9e1e8636a14b5215c6c55d3032bacfd94cac --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseCommon.java @@ -0,0 +1,45 @@ +package ca.spottedleaf.moonrise.common.util; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedThreadPool; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public final class MoonriseCommon { + + private static final Logger LOGGER = LoggerFactory.getLogger(MoonriseCommon.class); + + // Paper start + public static PrioritisedThreadPool WORKER_POOL; + public static int WORKER_THREADS; + public static void init(io.papermc.paper.configuration.GlobalConfiguration.ChunkSystem chunkSystem) { + // Paper end + int defaultWorkerThreads = Runtime.getRuntime().availableProcessors() / 2; + if (defaultWorkerThreads <= 4) { + defaultWorkerThreads = defaultWorkerThreads <= 3 ? 1 : 2; + } else { + defaultWorkerThreads = defaultWorkerThreads / 2; + } + defaultWorkerThreads = Integer.getInteger("Paper.WorkerThreadCount", Integer.valueOf(defaultWorkerThreads)); + + int workerThreads = chunkSystem.workerThreads; + + if (workerThreads <= 0) { + workerThreads = defaultWorkerThreads; + } + + WORKER_POOL = new PrioritisedThreadPool( + "Paper Worker Pool", workerThreads, + (final Thread thread, final Integer id) -> { + thread.setName("Paper Common Worker #" + id.intValue()); + thread.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { + @Override + public void uncaughtException(final Thread thread, final Throwable throwable) { + LOGGER.error("Uncaught exception in thread " + thread.getName(), throwable); + } + }); + }, (long)(20.0e6)); // 20ms + WORKER_THREADS = workerThreads; + } + + private MoonriseCommon() {} +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseConstants.java b/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseConstants.java new file mode 100644 index 0000000000000000000000000000000000000000..1cf32d7d1bbc8a0a3f7cb9024c793f6744199f64 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/MoonriseConstants.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.common.util; + +public final class MoonriseConstants { + + public static final int MAX_VIEW_DISTANCE = 32; + + private MoonriseConstants() {} + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/common/util/WorldUtil.java b/src/main/java/ca/spottedleaf/moonrise/common/util/WorldUtil.java new file mode 100644 index 0000000000000000000000000000000000000000..e95cc73ddf20050aa4a241b0a309240e2bf46abd --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/common/util/WorldUtil.java @@ -0,0 +1,54 @@ +package ca.spottedleaf.moonrise.common.util; + +import net.minecraft.world.level.Level; +import net.minecraft.world.level.LevelHeightAccessor; + +public final class WorldUtil { + + // min, max are inclusive + + public static int getMaxSection(final LevelHeightAccessor world) { + return world.getMaxSection() - 1; // getMaxSection() is exclusive + } + + public static int getMinSection(final LevelHeightAccessor world) { + return world.getMinSection(); + } + + public static int getMaxLightSection(final LevelHeightAccessor world) { + return getMaxSection(world) + 1; + } + + public static int getMinLightSection(final LevelHeightAccessor world) { + return getMinSection(world) - 1; + } + + + + public static int getTotalSections(final LevelHeightAccessor world) { + return getMaxSection(world) - getMinSection(world) + 1; + } + + public static int getTotalLightSections(final LevelHeightAccessor world) { + return getMaxLightSection(world) - getMinLightSection(world) + 1; + } + + public static int getMinBlockY(final LevelHeightAccessor world) { + return getMinSection(world) << 4; + } + + public static int getMaxBlockY(final LevelHeightAccessor world) { + return (getMaxSection(world) << 4) | 15; + } + + public static String getWorldName(final Level world) { + if (world == null) { + return "null world"; + } + return world.getWorld().getName(); + } + + private WorldUtil() { + throw new RuntimeException(); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystem.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystem.java new file mode 100644 index 0000000000000000000000000000000000000000..532a8c15009a4514d2682f52129785feb34a56f8 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystem.java @@ -0,0 +1,156 @@ +package ca.spottedleaf.moonrise.patches.chunk_system; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemLevelChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader; +import ca.spottedleaf.moonrise.patches.chunk_system.world.ChunkSystemServerChunkCache; +import com.mojang.logging.LogUtils; +import net.minecraft.server.level.ChunkHolder; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.server.level.ServerPlayer; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import org.slf4j.Logger; +import java.util.List; +import java.util.function.Consumer; + +public final class ChunkSystem { + + private static final Logger LOGGER = LogUtils.getLogger(); + + public static void scheduleChunkTask(final ServerLevel level, final int chunkX, final int chunkZ, final Runnable run) { + scheduleChunkTask(level, chunkX, chunkZ, run, PrioritisedExecutor.Priority.NORMAL); + } + + public static void scheduleChunkTask(final ServerLevel level, final int chunkX, final int chunkZ, final Runnable run, final PrioritisedExecutor.Priority priority) { + ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().scheduleChunkTask(chunkX, chunkZ, run, priority); + } + + public static void scheduleChunkLoad(final ServerLevel level, final int chunkX, final int chunkZ, final boolean gen, + final ChunkStatus toStatus, final boolean addTicket, final PrioritisedExecutor.Priority priority, + final Consumer onComplete) { + ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().scheduleChunkLoad(chunkX, chunkZ, gen, toStatus, addTicket, priority, onComplete); + } + + // Paper - rewrite chunk system + public static void scheduleChunkLoad(final ServerLevel level, final int chunkX, final int chunkZ, final ChunkStatus toStatus, + final boolean addTicket, final PrioritisedExecutor.Priority priority, final Consumer onComplete) { + ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().scheduleChunkLoad(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + } + + public static void scheduleTickingState(final ServerLevel level, final int chunkX, final int chunkZ, + final FullChunkStatus toStatus, final boolean addTicket, + final PrioritisedExecutor.Priority priority, final Consumer onComplete) { + ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().scheduleTickingState(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + } + + public static List getVisibleChunkHolders(final ServerLevel level) { + return ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().chunkHolderManager.getOldChunkHolders(); + } + + public static List getUpdatingChunkHolders(final ServerLevel level) { + return ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().chunkHolderManager.getOldChunkHolders(); + } + + public static int getVisibleChunkHolderCount(final ServerLevel level) { + return ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().chunkHolderManager.size(); + } + + public static int getUpdatingChunkHolderCount(final ServerLevel level) { + return ((ChunkSystemServerLevel)level).moonrise$getChunkTaskScheduler().chunkHolderManager.size(); + } + + public static boolean hasAnyChunkHolders(final ServerLevel level) { + return getUpdatingChunkHolderCount(level) != 0; + } + + public static void onEntityPreAdd(final ServerLevel level, final Entity entity) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onEntityPreAdd(level, entity); + } + + public static void onChunkHolderCreate(final ServerLevel level, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkHolderCreate(level, holder); + } + + public static void onChunkHolderDelete(final ServerLevel level, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkHolderDelete(level, holder); + } + + public static void onChunkBorder(final LevelChunk chunk, final ChunkHolder holder) { + ((ChunkSystemServerChunkCache)((ServerLevel)chunk.getLevel()).getChunkSource()) + .moonrise$setFullChunk(chunk.getPos().x, chunk.getPos().z, chunk); + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkBorder(chunk, holder); + chunk.loadCallback(); // Paper + } + + public static void onChunkNotBorder(final LevelChunk chunk, final ChunkHolder holder) { + ((ChunkSystemServerChunkCache)((ServerLevel)chunk.getLevel()).getChunkSource()) + .moonrise$setFullChunk(chunk.getPos().x, chunk.getPos().z, null); + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkNotBorder(chunk, holder); + chunk.unloadCallback(); // Paper + } + + public static void onChunkTicking(final LevelChunk chunk, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkTicking(chunk, holder); + if (!((ChunkSystemLevelChunk)chunk).moonrise$isPostProcessingDone()) { + chunk.postProcessGeneration(); + } + ((ServerLevel)chunk.getLevel()).startTickingChunk(chunk); + ((ServerLevel)chunk.getLevel()).getChunkSource().chunkMap.tickingGenerated.incrementAndGet(); + } + + public static void onChunkNotTicking(final LevelChunk chunk, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkNotTicking(chunk, holder); + } + + public static void onChunkEntityTicking(final LevelChunk chunk, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkEntityTicking(chunk, holder); + } + + public static void onChunkNotEntityTicking(final LevelChunk chunk, final ChunkHolder holder) { + // TODO move hook + io.papermc.paper.chunk.system.ChunkSystem.onChunkNotEntityTicking(chunk, holder); + } + + public static ChunkHolder getUnloadingChunkHolder(final ServerLevel level, final int chunkX, final int chunkZ) { + return null; + } + + public static int getSendViewDistance(final ServerPlayer player) { + return RegionizedPlayerChunkLoader.getAPISendViewDistance(player); + } + + public static int getLoadViewDistance(final ServerPlayer player) { + return RegionizedPlayerChunkLoader.getLoadViewDistance(player); + } + + public static int getTickViewDistance(final ServerPlayer player) { + return RegionizedPlayerChunkLoader.getAPITickViewDistance(player); + } + + public static void addPlayerToDistanceMaps(final ServerLevel world, final ServerPlayer player) { + ((ChunkSystemServerLevel)world).moonrise$getPlayerChunkLoader().addPlayer(player); + } + + public static void removePlayerFromDistanceMaps(final ServerLevel world, final ServerPlayer player) { + ((ChunkSystemServerLevel)world).moonrise$getPlayerChunkLoader().removePlayer(player); + } + + public static void updateMaps(final ServerLevel world, final ServerPlayer player) { + ((ChunkSystemServerLevel)world).moonrise$getPlayerChunkLoader().updatePlayer(player); + } + + private ChunkSystem() {} +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemConverters.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemConverters.java new file mode 100644 index 0000000000000000000000000000000000000000..49160a30b8e19e5c5ada811fbcae2a05959524f3 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemConverters.java @@ -0,0 +1,38 @@ +package ca.spottedleaf.moonrise.patches.chunk_system; + +import net.minecraft.SharedConstants; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.nbt.Tag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.util.datafix.DataFixTypes; + +public final class ChunkSystemConverters { + + // See SectionStorage#getVersion + private static final int DEFAULT_POI_DATA_VERSION = 1945; + + private static final int DEFAULT_ENTITY_CHUNK_DATA_VERSION = -1; + + private static int getCurrentVersion() { + return SharedConstants.getCurrentVersion().getDataVersion().getVersion(); + } + + private static int getDataVersion(final CompoundTag data, final int dfl) { + return !data.contains(SharedConstants.DATA_VERSION_TAG, Tag.TAG_ANY_NUMERIC) + ? dfl : data.getInt(SharedConstants.DATA_VERSION_TAG); + } + + public static CompoundTag convertPoiCompoundTag(final CompoundTag data, final ServerLevel world) { + final int dataVersion = getDataVersion(data, DEFAULT_POI_DATA_VERSION); + + return DataFixTypes.POI_CHUNK.update(world.getServer().getFixerUpper(), data, dataVersion, getCurrentVersion()); + } + + public static CompoundTag convertEntityChunkCompoundTag(final CompoundTag data, final ServerLevel world) { + final int dataVersion = getDataVersion(data, DEFAULT_ENTITY_CHUNK_DATA_VERSION); + + return DataFixTypes.ENTITY_CHUNK.update(world.getServer().getFixerUpper(), data, dataVersion, getCurrentVersion()); + } + + private ChunkSystemConverters() {} +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemFeatures.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemFeatures.java new file mode 100644 index 0000000000000000000000000000000000000000..67f6dd9a4855611cfe242c2e37e90f6d27d4c823 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ChunkSystemFeatures.java @@ -0,0 +1,36 @@ +package ca.spottedleaf.moonrise.patches.chunk_system; + +import ca.spottedleaf.moonrise.patches.chunk_system.async_save.AsyncChunkSaveData; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.chunk.ChunkAccess; + +public final class ChunkSystemFeatures { + + public static boolean supportsAsyncChunkSave() { + // uncertain how to properly pass AsyncSaveData to ChunkSerializer#write + // additionally, there may be mods hooking into the write() call which may not be thread-safe to call + return true; + } + + public static AsyncChunkSaveData getAsyncSaveData(final ServerLevel world, final ChunkAccess chunk) { + return net.minecraft.world.level.chunk.storage.ChunkSerializer.getAsyncSaveData(world, chunk); + } + + public static CompoundTag saveChunkAsync(final ServerLevel world, final ChunkAccess chunk, final AsyncChunkSaveData asyncSaveData) { + return net.minecraft.world.level.chunk.storage.ChunkSerializer.saveChunk(world, chunk, asyncSaveData); + } + + public static boolean forceNoSave(final ChunkAccess chunk) { + // support for CB chunk mustNotSave + return chunk instanceof net.minecraft.world.level.chunk.LevelChunk levelChunk && levelChunk.mustNotSave; + } + + public static boolean supportsAsyncChunkDeserialization() { + // as it stands, the current problem with supporting this in Moonrise is that we are unsure that any mods + // hooking into ChunkSerializer#read() are thread-safe to call + return true; + } + + private ChunkSystemFeatures() {} +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/async_save/AsyncChunkSaveData.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/async_save/AsyncChunkSaveData.java new file mode 100644 index 0000000000000000000000000000000000000000..becd1c6d54ed6c912aee3a9178a970e2751d3694 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/async_save/AsyncChunkSaveData.java @@ -0,0 +1,11 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.async_save; + +import net.minecraft.nbt.ListTag; +import net.minecraft.nbt.Tag; + +public record AsyncChunkSaveData( + Tag blockTickList, // non-null if we had to go to the server's tick list + Tag fluidTickList, // non-null if we had to go to the server's tick list + ListTag blockEntities, + long worldTime +) {} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/entity/ChunkSystemEntity.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/entity/ChunkSystemEntity.java new file mode 100644 index 0000000000000000000000000000000000000000..2c279854bdf214538380fa354e4298ec4bd9ac4e --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/entity/ChunkSystemEntity.java @@ -0,0 +1,39 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.entity; + +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.entity.monster.Shulker; +import net.minecraft.world.entity.vehicle.AbstractMinecart; +import net.minecraft.world.entity.vehicle.Boat; + +public interface ChunkSystemEntity { + + public boolean moonrise$isHardColliding(); + + // for mods to override + public default boolean moonrise$isHardCollidingUncached() { + return this instanceof Boat || this instanceof AbstractMinecart || this instanceof Shulker || ((Entity)this).canBeCollidedWith(); + } + + public FullChunkStatus moonrise$getChunkStatus(); + + public void moonrise$setChunkStatus(final FullChunkStatus status); + + public int moonrise$getSectionX(); + + public void moonrise$setSectionX(final int x); + + public int moonrise$getSectionY(); + + public void moonrise$setSectionY(final int y); + + public int moonrise$getSectionZ(); + + public void moonrise$setSectionZ(final int z); + + public boolean moonrise$isUpdatingSectionStatus(); + + public void moonrise$setUpdatingSectionStatus(final boolean to); + + public boolean moonrise$hasAnyPlayerPassengers(); +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/ChunkSystemRegionFileStorage.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/ChunkSystemRegionFileStorage.java new file mode 100644 index 0000000000000000000000000000000000000000..73df26b27146bbad2106d57b22dd3c792ed3dd1d --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/ChunkSystemRegionFileStorage.java @@ -0,0 +1,14 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.io; + +import net.minecraft.world.level.chunk.storage.RegionFile; +import java.io.IOException; + +public interface ChunkSystemRegionFileStorage { + + public boolean moonrise$doesRegionFileNotExistNoIO(final int chunkX, final int chunkZ); + + public RegionFile moonrise$getRegionFileIfLoaded(final int chunkX, final int chunkZ); + + public RegionFile moonrise$getRegionFileIfExists(final int chunkX, final int chunkZ) throws IOException; + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/RegionFileIOThread.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/RegionFileIOThread.java new file mode 100644 index 0000000000000000000000000000000000000000..c833f78d083b8f661087471c35bc90f65af1b525 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/RegionFileIOThread.java @@ -0,0 +1,1239 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.io; + +import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue; +import ca.spottedleaf.concurrentutil.executor.Cancellable; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedQueueExecutorThread; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedThreadedTaskQueue; +import ca.spottedleaf.concurrentutil.function.BiLong1Function; +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.storage.RegionFile; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.io.IOException; +import java.lang.invoke.VarHandle; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CompletionException; +import java.util.concurrent.atomic.AtomicInteger; +import java.util.function.BiConsumer; +import java.util.function.Consumer; +import java.util.function.Function; + +/** + * Prioritised RegionFile I/O executor, responsible for all RegionFile access. + *

+ * All functions provided are MT-Safe, however certain ordering constraints are recommended: + *

  • + * Chunk saves may not occur for unloaded chunks. + *
    • + *
  • + * Tasks must be scheduled on the chunk scheduler thread. + *
    • + * By following these constraints, no chunk data loss should occur with the exception of underlying I/O problems. + *

    + */ +public final class RegionFileIOThread extends PrioritisedQueueExecutorThread { + + private static final Logger LOGGER = LoggerFactory.getLogger(RegionFileIOThread.class); + + /** + * The kinds of region files controlled by the region file thread. Add more when needed, and ensure + * getControllerFor is updated. + */ + public static enum RegionFileType { + CHUNK_DATA, + POI_DATA, + ENTITY_DATA; + } + + private static final RegionFileType[] CACHED_REGIONFILE_TYPES = RegionFileType.values(); + + public static ChunkDataController getControllerFor(final ServerLevel world, final RegionFileType type) { + switch (type) { + case CHUNK_DATA: + return ((ChunkSystemServerLevel)world).moonrise$getChunkDataController(); + case POI_DATA: + return ((ChunkSystemServerLevel)world).moonrise$getPoiChunkDataController(); + case ENTITY_DATA: + return ((ChunkSystemServerLevel)world).moonrise$getEntityChunkDataController(); + default: + throw new IllegalStateException("Unknown controller type " + type); + } + } + + /** + * Collects regionfile data for a certain chunk. + */ + public static final class RegionFileData { + + private final boolean[] hasResult = new boolean[CACHED_REGIONFILE_TYPES.length]; + private final CompoundTag[] data = new CompoundTag[CACHED_REGIONFILE_TYPES.length]; + private final Throwable[] throwables = new Throwable[CACHED_REGIONFILE_TYPES.length]; + + /** + * Sets the result associated with the specified regionfile type. Note that + * results can only be set once per regionfile type. + * + * @param type The regionfile type. + * @param data The result to set. + */ + public void setData(final RegionFileType type, final CompoundTag data) { + final int index = type.ordinal(); + + if (this.hasResult[index]) { + throw new IllegalArgumentException("Result already exists for type " + type); + } + this.hasResult[index] = true; + this.data[index] = data; + } + + /** + * Sets the result associated with the specified regionfile type. Note that + * results can only be set once per regionfile type. + * + * @param type The regionfile type. + * @param throwable The result to set. + */ + public void setThrowable(final RegionFileType type, final Throwable throwable) { + final int index = type.ordinal(); + + if (this.hasResult[index]) { + throw new IllegalArgumentException("Result already exists for type " + type); + } + this.hasResult[index] = true; + this.throwables[index] = throwable; + } + + /** + * Returns whether there is a result for the specified regionfile type. + * + * @param type Specified regionfile type. + * + * @return Whether a result exists for {@code type}. + */ + public boolean hasResult(final RegionFileType type) { + return this.hasResult[type.ordinal()]; + } + + /** + * Returns the data result for the regionfile type. + * + * @param type Specified regionfile type. + * + * @throws IllegalArgumentException If the result has not been set for {@code type}. + * @return The data result for the specified type. If the result is a {@code Throwable}, + * then returns {@code null}. + */ + public CompoundTag getData(final RegionFileType type) { + final int index = type.ordinal(); + + if (!this.hasResult[index]) { + throw new IllegalArgumentException("Result does not exist for type " + type); + } + + return this.data[index]; + } + + /** + * Returns the throwable result for the regionfile type. + * + * @param type Specified regionfile type. + * + * @throws IllegalArgumentException If the result has not been set for {@code type}. + * @return The throwable result for the specified type. If the result is an {@code CompoundTag}, + * then returns {@code null}. + */ + public Throwable getThrowable(final RegionFileType type) { + final int index = type.ordinal(); + + if (!this.hasResult[index]) { + throw new IllegalArgumentException("Result does not exist for type " + type); + } + + return this.throwables[index]; + } + } + + private static final Object INIT_LOCK = new Object(); + + static RegionFileIOThread[] threads; + + /* needs to be consistent given a set of parameters */ + static RegionFileIOThread selectThread(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type) { + if (threads == null) { + throw new IllegalStateException("Threads not initialised"); + } + + final int regionX = chunkX >> 5; + final int regionZ = chunkZ >> 5; + final int typeOffset = type.ordinal(); + + return threads[(System.identityHashCode(world) + regionX + regionZ + typeOffset) % threads.length]; + } + + /** + * Shuts down the I/O executor(s). Watis for all tasks to complete if specified. + * Tasks queued during this call might not be accepted, and tasks queued after will not be accepted. + * + * @param wait Whether to wait until all tasks have completed. + */ + public static void close(final boolean wait) { + for (int i = 0, len = threads.length; i < len; ++i) { + threads[i].close(false, true); + } + if (wait) { + RegionFileIOThread.flush(); + } + } + + public static long[] getExecutedTasks() { + final long[] ret = new long[threads.length]; + for (int i = 0, len = threads.length; i < len; ++i) { + ret[i] = threads[i].getTotalTasksExecuted(); + } + + return ret; + } + + public static long[] getTasksScheduled() { + final long[] ret = new long[threads.length]; + for (int i = 0, len = threads.length; i < len; ++i) { + ret[i] = threads[i].getTotalTasksScheduled(); + } + return ret; + } + + public static void flush() { + for (int i = 0, len = threads.length; i < len; ++i) { + threads[i].waitUntilAllExecuted(); + } + } + + public static void flushRegionStorages(final ServerLevel world) throws IOException { + for (final RegionFileType type : CACHED_REGIONFILE_TYPES) { + getControllerFor(world, type).getCache().flush(); + } + } + + public static void partialFlush(final int totalTasksRemaining) { + long failures = 1L; // start out at 0.25ms + + for (;;) { + final long[] executed = getExecutedTasks(); + final long[] scheduled = getTasksScheduled(); + + long sum = 0; + for (int i = 0; i < executed.length; ++i) { + sum += scheduled[i] - executed[i]; + } + + if (sum <= totalTasksRemaining) { + break; + } + + failures = ConcurrentUtil.linearLongBackoff(failures, 250_000L, 5_000_000L); // 500us, 5ms + } + } + + /** + * Inits the executor with the specified number of threads. + * + * @param threads Specified number of threads. + */ + public static void init(final int threads) { + synchronized (INIT_LOCK) { + if (RegionFileIOThread.threads != null) { + throw new IllegalStateException("Already initialised threads"); + } + + RegionFileIOThread.threads = new RegionFileIOThread[threads]; + + for (int i = 0; i < threads; ++i) { + RegionFileIOThread.threads[i] = new RegionFileIOThread(i); + RegionFileIOThread.threads[i].start(); + } + } + } + + public static void deinit() { + if (true) { // Paper + // TODO does this cause issues with mods? how to implement + close(true); + synchronized (INIT_LOCK) { + RegionFileIOThread.threads = null; + } + } else { RegionFileIOThread.flush(); } + } + + private RegionFileIOThread(final int threadNumber) { + super(new PrioritisedThreadedTaskQueue(), (int)(1.0e6)); // 1.0ms spinwait time + this.setName("RegionFile I/O Thread #" + threadNumber); + this.setPriority(Thread.NORM_PRIORITY - 2); // we keep priority close to normal because threads can wait on us + this.setUncaughtExceptionHandler((final Thread thread, final Throwable thr) -> { + LOGGER.error("Uncaught exception thrown from I/O thread, report this! Thread: " + thread.getName(), thr); + }); + } + + /** + * Returns whether the current thread is a regionfile I/O executor. + * @return Whether the current thread is a regionfile I/O executor. + */ + public static boolean isRegionFileThread() { + return Thread.currentThread() instanceof RegionFileIOThread; + } + + /** + * Returns the priority associated with blocking I/O based on the current thread. The goal is to avoid + * dumb plugins from taking away priority from threads we consider crucial. + * @return The priroity to use with blocking I/O on the current thread. + */ + public static Priority getIOBlockingPriorityForCurrentThread() { + if (io.papermc.paper.util.TickThread.isTickThread()) { + return Priority.BLOCKING; + } + return Priority.HIGHEST; + } + + /** + * Returns the current {@code CompoundTag} pending for write for the specified chunk & regionfile type. + * Note that this does not copy the result, so do not modify the result returned. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param type Specified regionfile type. + * + * @return The compound tag associated for the specified chunk. {@code null} if no write was pending, or if {@code null} is the write pending. + */ + public static CompoundTag getPendingWrite(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + return thread.getPendingWriteInternal(world, chunkX, chunkZ, type); + } + + CompoundTag getPendingWriteInternal(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type) { + final ChunkDataController taskController = getControllerFor(world, type); + final ChunkDataTask task = taskController.tasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + if (task == null) { + return null; + } + + final CompoundTag ret = task.inProgressWrite; + + return ret == ChunkDataTask.NOTHING_TO_WRITE ? null : ret; + } + + /** + * Returns the priority for the specified regionfile type for the specified chunk. + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param type Specified regionfile type. + * @return The priority for the chunk + */ + public static Priority getPriority(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + return thread.getPriorityInternal(world, chunkX, chunkZ, type); + } + + Priority getPriorityInternal(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type) { + final ChunkDataController taskController = getControllerFor(world, type); + final ChunkDataTask task = taskController.tasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + if (task == null) { + return Priority.COMPLETING; + } + + return task.prioritisedTask.getPriority(); + } + + /** + * Sets the priority for all regionfile types for the specified chunk. Note that great care should + * be taken using this method, as there can be multiple tasks tied to the same chunk that want different + * priorities. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param priority New priority. + * + * @see #raisePriority(ServerLevel, int, int, Priority) + * @see #raisePriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #lowerPriority(ServerLevel, int, int, Priority) + * @see #lowerPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void setPriority(final ServerLevel world, final int chunkX, final int chunkZ, + final Priority priority) { + for (final RegionFileType type : CACHED_REGIONFILE_TYPES) { + RegionFileIOThread.setPriority(world, chunkX, chunkZ, type, priority); + } + } + + /** + * Sets the priority for the specified regionfile type for the specified chunk. Note that great care should + * be taken using this method, as there can be multiple tasks tied to the same chunk that want different + * priorities. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param type Specified regionfile type. + * @param priority New priority. + * + * @see #raisePriority(ServerLevel, int, int, Priority) + * @see #raisePriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #lowerPriority(ServerLevel, int, int, Priority) + * @see #lowerPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void setPriority(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + thread.setPriorityInternal(world, chunkX, chunkZ, type, priority); + } + + void setPriorityInternal(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final ChunkDataController taskController = getControllerFor(world, type); + final ChunkDataTask task = taskController.tasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + if (task != null) { + task.prioritisedTask.setPriority(priority); + } + } + + /** + * Raises the priority for all regionfile types for the specified chunk. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param priority New priority. + * + * @see #setPriority(ServerLevel, int, int, Priority) + * @see #setPriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #lowerPriority(ServerLevel, int, int, Priority) + * @see #lowerPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void raisePriority(final ServerLevel world, final int chunkX, final int chunkZ, + final Priority priority) { + for (final RegionFileType type : CACHED_REGIONFILE_TYPES) { + RegionFileIOThread.raisePriority(world, chunkX, chunkZ, type, priority); + } + } + + /** + * Raises the priority for the specified regionfile type for the specified chunk. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param type Specified regionfile type. + * @param priority New priority. + * + * @see #setPriority(ServerLevel, int, int, Priority) + * @see #setPriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #lowerPriority(ServerLevel, int, int, Priority) + * @see #lowerPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void raisePriority(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + thread.raisePriorityInternal(world, chunkX, chunkZ, type, priority); + } + + void raisePriorityInternal(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final ChunkDataController taskController = getControllerFor(world, type); + final ChunkDataTask task = taskController.tasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + if (task != null) { + task.prioritisedTask.raisePriority(priority); + } + } + + /** + * Lowers the priority for all regionfile types for the specified chunk. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param priority New priority. + * + * @see #raisePriority(ServerLevel, int, int, Priority) + * @see #raisePriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #setPriority(ServerLevel, int, int, Priority) + * @see #setPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void lowerPriority(final ServerLevel world, final int chunkX, final int chunkZ, + final Priority priority) { + for (final RegionFileType type : CACHED_REGIONFILE_TYPES) { + RegionFileIOThread.lowerPriority(world, chunkX, chunkZ, type, priority); + } + } + + /** + * Lowers the priority for the specified regionfile type for the specified chunk. + * + * @param world Specified world. + * @param chunkX Specified chunk x. + * @param chunkZ Specified chunk z. + * @param type Specified regionfile type. + * @param priority New priority. + * + * @see #raisePriority(ServerLevel, int, int, Priority) + * @see #raisePriority(ServerLevel, int, int, RegionFileType, Priority) + * @see #setPriority(ServerLevel, int, int, Priority) + * @see #setPriority(ServerLevel, int, int, RegionFileType, Priority) + */ + public static void lowerPriority(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + thread.lowerPriorityInternal(world, chunkX, chunkZ, type, priority); + } + + void lowerPriorityInternal(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) { + final ChunkDataController taskController = getControllerFor(world, type); + final ChunkDataTask task = taskController.tasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + if (task != null) { + task.prioritisedTask.lowerPriority(priority); + } + } + + /** + * Schedules the chunk data to be written asynchronously. + *

    + * Impl notes: + *

    + *
  • + * This function presumes a chunk load for the coordinates is not called during this function (anytime after is OK). This means + * saves must be scheduled before a chunk is unloaded. + *
    • + *
  • + * Writes may be called concurrently, although only the "later" write will go through. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param data Chunk's data + * @param type The regionfile type to write to. + * + * @throws IllegalStateException If the file io thread has shutdown. + */ + public static void scheduleSave(final ServerLevel world, final int chunkX, final int chunkZ, final CompoundTag data, + final RegionFileType type) { + RegionFileIOThread.scheduleSave(world, chunkX, chunkZ, data, type, Priority.NORMAL); + } + + /** + * Schedules the chunk data to be written asynchronously. + *

    + * Impl notes: + *

    + *
  • + * This function presumes a chunk load for the coordinates is not called during this function (anytime after is OK). This means + * saves must be scheduled before a chunk is unloaded. + *
    • + *
  • + * Writes may be called concurrently, although only the "later" write will go through. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param data Chunk's data + * @param type The regionfile type to write to. + * @param priority The minimum priority to schedule at. + * + * @throws IllegalStateException If the file io thread has shutdown. + */ + public static void scheduleSave(final ServerLevel world, final int chunkX, final int chunkZ, final CompoundTag data, + final RegionFileType type, final Priority priority) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + thread.scheduleSaveInternal(world, chunkX, chunkZ, data, type, priority); + } + + void scheduleSaveInternal(final ServerLevel world, final int chunkX, final int chunkZ, final CompoundTag data, + final RegionFileType type, final Priority priority) { + final ChunkDataController taskController = getControllerFor(world, type); + + final boolean[] created = new boolean[1]; + final long key = CoordinateUtils.getChunkKey(chunkX, chunkZ); + final ChunkDataTask task = taskController.tasks.compute(key, (final long keyInMap, final ChunkDataTask taskRunning) -> { + if (taskRunning == null || taskRunning.failedWrite) { + // no task is scheduled or the previous write failed - meaning we need to overwrite it + + // create task + final ChunkDataTask newTask = new ChunkDataTask(world, chunkX, chunkZ, taskController, RegionFileIOThread.this, priority); + newTask.inProgressWrite = data; + created[0] = true; + + return newTask; + } + + taskRunning.inProgressWrite = data; + + return taskRunning; + }); + + if (created[0]) { + task.prioritisedTask.queue(); + } else { + task.prioritisedTask.raisePriority(priority); + } + } + + /** + * Schedules a load to be executed asynchronously. This task will load all regionfile types, and then call + * {@code onComplete}. This is a bulk load operation, see {@link #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean)} + * for single load. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean) + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, RegionFileType...) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, Priority, RegionFileType...) + */ + public static Cancellable loadAllChunkData(final ServerLevel world, final int chunkX, final int chunkZ, + final Consumer onComplete, final boolean intendingToBlock) { + return RegionFileIOThread.loadAllChunkData(world, chunkX, chunkZ, onComplete, intendingToBlock, Priority.NORMAL); + } + + /** + * Schedules a load to be executed asynchronously. This task will load all regionfile types, and then call + * {@code onComplete}. This is a bulk load operation, see {@link #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority)} + * for single load. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * @param priority The minimum priority to load the data at. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean) + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, RegionFileType...) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, Priority, RegionFileType...) + */ + public static Cancellable loadAllChunkData(final ServerLevel world, final int chunkX, final int chunkZ, + final Consumer onComplete, final boolean intendingToBlock, + final Priority priority) { + return RegionFileIOThread.loadChunkData(world, chunkX, chunkZ, onComplete, intendingToBlock, priority, CACHED_REGIONFILE_TYPES); + } + + /** + * Schedules a load to be executed asynchronously. This task will load data for the specified regionfile type(s), and + * then call {@code onComplete}. This is a bulk load operation, see {@link #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean)} + * for single load. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * @param types The regionfile type(s) to load. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean) + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean, Priority) + */ + public static Cancellable loadChunkData(final ServerLevel world, final int chunkX, final int chunkZ, + final Consumer onComplete, final boolean intendingToBlock, + final RegionFileType... types) { + return RegionFileIOThread.loadChunkData(world, chunkX, chunkZ, onComplete, intendingToBlock, Priority.NORMAL, types); + } + + /** + * Schedules a load to be executed asynchronously. This task will load data for the specified regionfile type(s), and + * then call {@code onComplete}. This is a bulk load operation, see {@link #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority)} + * for single load. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * @param types The regionfile type(s) to load. + * @param priority The minimum priority to load the data at. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean) + * @see #loadDataAsync(ServerLevel, int, int, RegionFileType, BiConsumer, boolean, Priority) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean, Priority) + */ + public static Cancellable loadChunkData(final ServerLevel world, final int chunkX, final int chunkZ, + final Consumer onComplete, final boolean intendingToBlock, + final Priority priority, final RegionFileType... types) { + if (types == null) { + throw new NullPointerException("Types cannot be null"); + } + if (types.length == 0) { + throw new IllegalArgumentException("Types cannot be empty"); + } + + final RegionFileData ret = new RegionFileData(); + + final Cancellable[] reads = new CancellableRead[types.length]; + final AtomicInteger completions = new AtomicInteger(); + final int expectedCompletions = types.length; + + for (int i = 0; i < expectedCompletions; ++i) { + final RegionFileType type = types[i]; + reads[i] = RegionFileIOThread.loadDataAsync(world, chunkX, chunkZ, type, + (final CompoundTag data, final Throwable throwable) -> { + if (throwable != null) { + ret.setThrowable(type, throwable); + } else { + ret.setData(type, data); + } + + if (completions.incrementAndGet() == expectedCompletions) { + onComplete.accept(ret); + } + }, intendingToBlock, priority); + } + + return new CancellableReads(reads); + } + + /** + * Schedules a load to be executed asynchronously. This task will load the specified regionfile type, and then call + * {@code onComplete}. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, RegionFileType...) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, Priority, RegionFileType...) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean, Priority) + */ + public static Cancellable loadDataAsync(final ServerLevel world, final int chunkX, final int chunkZ, + final RegionFileType type, final BiConsumer onComplete, + final boolean intendingToBlock) { + return RegionFileIOThread.loadDataAsync(world, chunkX, chunkZ, type, onComplete, intendingToBlock, Priority.NORMAL); + } + + /** + * Schedules a load to be executed asynchronously. This task will load the specified regionfile type, and then call + * {@code onComplete}. + *

    + * Impl notes: + *

    + *
  • + * The {@code onComplete} parameter may be completed during the execution of this function synchronously or it may + * be completed asynchronously on this file io thread. Interacting with the file IO thread in the completion of + * data is undefined behaviour, and can cause deadlock. + *
    • + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param onComplete Consumer to execute once this task has completed + * @param intendingToBlock Whether the caller is intending to block on completion. This only affects the cost + * of this call. + * @param priority Minimum priority to load the data at. + * + * @return The {@link Cancellable} for this chunk load. Cancelling it will not affect other loads for the same chunk data. + * + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, RegionFileType...) + * @see #loadChunkData(ServerLevel, int, int, Consumer, boolean, Priority, RegionFileType...) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean) + * @see #loadAllChunkData(ServerLevel, int, int, Consumer, boolean, Priority) + */ + public static Cancellable loadDataAsync(final ServerLevel world, final int chunkX, final int chunkZ, + final RegionFileType type, final BiConsumer onComplete, + final boolean intendingToBlock, final Priority priority) { + final RegionFileIOThread thread = RegionFileIOThread.selectThread(world, chunkX, chunkZ, type); + return thread.loadDataAsyncInternal(world, chunkX, chunkZ, type, onComplete, intendingToBlock, priority); + } + + Cancellable loadDataAsyncInternal(final ServerLevel world, final int chunkX, final int chunkZ, + final RegionFileType type, final BiConsumer onComplete, + final boolean intendingToBlock, final Priority priority) { + final ChunkDataController taskController = getControllerFor(world, type); + + final ImmediateCallbackCompletion callbackInfo = new ImmediateCallbackCompletion(); + + final long key = CoordinateUtils.getChunkKey(chunkX, chunkZ); + final BiLong1Function compute = (final long keyInMap, final ChunkDataTask running) -> { + if (running == null) { + // not scheduled + + // set up task + final ChunkDataTask newTask = new ChunkDataTask( + world, chunkX, chunkZ, taskController, RegionFileIOThread.this, priority + ); + newTask.inProgressRead = new InProgressRead(); + newTask.inProgressRead.addToAsyncWaiters(onComplete); + + callbackInfo.tasksNeedsScheduling = true; + return newTask; + } + + final CompoundTag pendingWrite = running.inProgressWrite; + + if (pendingWrite == ChunkDataTask.NOTHING_TO_WRITE) { + // need to add to waiters here, because the regionfile thread will use compute() to lock and check for cancellations + if (!running.inProgressRead.addToAsyncWaiters(onComplete)) { + callbackInfo.data = running.inProgressRead.value; + callbackInfo.throwable = running.inProgressRead.throwable; + callbackInfo.completeNow = true; + } + return running; + } + + // at this stage we have to use the in progress write's data to avoid an order issue + callbackInfo.data = pendingWrite; + callbackInfo.throwable = null; + callbackInfo.completeNow = true; + return running; + }; + + final ChunkDataTask ret = taskController.tasks.compute(key, compute); + + // needs to be scheduled + if (callbackInfo.tasksNeedsScheduling) { + ret.prioritisedTask.queue(); + } else if (callbackInfo.completeNow) { + try { + onComplete.accept(callbackInfo.data == null ? null : callbackInfo.data.copy(), callbackInfo.throwable); + } catch (final Throwable thr) { + LOGGER.error("Callback " + ConcurrentUtil.genericToString(onComplete) + " synchronously failed to handle chunk data for task " + ret.toString(), thr); + } + } else { + // we're waiting on a task we didn't schedule, so raise its priority to what we want + ret.prioritisedTask.raisePriority(priority); + } + + return new CancellableRead(onComplete, ret); + } + + /** + * Schedules a load task to be executed asynchronously, and blocks on that task. + * + * @param world Chunk's world + * @param chunkX Chunk's x coordinate + * @param chunkZ Chunk's z coordinate + * @param type Regionfile type + * @param priority Minimum priority to load the data at. + * + * @return The chunk data for the chunk. Note that a {@code null} result means the chunk or regionfile does not exist on disk. + * + * @throws IOException If the load fails for any reason + */ + public static CompoundTag loadData(final ServerLevel world, final int chunkX, final int chunkZ, final RegionFileType type, + final Priority priority) throws IOException { + final CompletableFuture ret = new CompletableFuture<>(); + + RegionFileIOThread.loadDataAsync(world, chunkX, chunkZ, type, (final CompoundTag compound, final Throwable thr) -> { + if (thr != null) { + ret.completeExceptionally(thr); + } else { + ret.complete(compound); + } + }, true, priority); + + try { + return ret.join(); + } catch (final CompletionException ex) { + throw new IOException(ex); + } + } + + private static final class ImmediateCallbackCompletion { + + public CompoundTag data; + public Throwable throwable; + public boolean completeNow; + public boolean tasksNeedsScheduling; + + } + + private static final class CancellableRead implements Cancellable { + + private BiConsumer callback; + private ChunkDataTask task; + + CancellableRead(final BiConsumer callback, final ChunkDataTask task) { + this.callback = callback; + this.task = task; + } + + @Override + public boolean cancel() { + final BiConsumer callback = this.callback; + final ChunkDataTask task = this.task; + + if (callback == null || task == null) { + return false; + } + + this.callback = null; + this.task = null; + + final InProgressRead read = task.inProgressRead; + + // read can be null if no read was scheduled (i.e no regionfile existed or chunk in regionfile didn't) + return read != null && read.cancel(callback); + } + } + + private static final class CancellableReads implements Cancellable { + + private Cancellable[] reads; + + private static final VarHandle READS_HANDLE = ConcurrentUtil.getVarHandle(CancellableReads.class, "reads", Cancellable[].class); + + CancellableReads(final Cancellable[] reads) { + this.reads = reads; + } + + @Override + public boolean cancel() { + final Cancellable[] reads = (Cancellable[])READS_HANDLE.getAndSet((CancellableReads)this, (Cancellable[])null); + + if (reads == null) { + return false; + } + + boolean ret = false; + + for (final Cancellable read : reads) { + ret |= read.cancel(); + } + + return ret; + } + } + + private static final class InProgressRead { + + private static final Logger LOGGER = LoggerFactory.getLogger(InProgressRead.class); + + private CompoundTag value; + private Throwable throwable; + private final MultiThreadedQueue> callbacks = new MultiThreadedQueue<>(); + + public boolean hasNoWaiters() { + return this.callbacks.isEmpty(); + } + + public boolean addToAsyncWaiters(final BiConsumer callback) { + return this.callbacks.add(callback); + } + + public boolean cancel(final BiConsumer callback) { + return this.callbacks.remove(callback); + } + + public void complete(final ChunkDataTask task, final CompoundTag value, final Throwable throwable) { + this.value = value; + this.throwable = throwable; + + BiConsumer consumer; + while ((consumer = this.callbacks.pollOrBlockAdds()) != null) { + try { + consumer.accept(value == null ? null : value.copy(), throwable); + } catch (final Throwable thr) { + LOGGER.error("Callback " + ConcurrentUtil.genericToString(consumer) + " failed to handle chunk data for task " + task.toString(), thr); + } + } + } + } + + public static abstract class ChunkDataController { + + // ConcurrentHashMap synchronizes per chain, so reduce the chance of task's hashes colliding. + private final ConcurrentLong2ReferenceChainedHashTable tasks = ConcurrentLong2ReferenceChainedHashTable.createWithCapacity(8192, 0.5f); + + public final RegionFileType type; + + public ChunkDataController(final RegionFileType type) { + this.type = type; + } + + public abstract RegionFileStorage getCache(); + + public abstract void writeData(final int chunkX, final int chunkZ, final CompoundTag compound) throws IOException; + + public abstract CompoundTag readData(final int chunkX, final int chunkZ) throws IOException; + + public boolean hasTasks() { + return !this.tasks.isEmpty(); + } + + public boolean doesRegionFileNotExist(final int chunkX, final int chunkZ) { + return ((ChunkSystemRegionFileStorage)(Object)this.getCache()).moonrise$doesRegionFileNotExistNoIO(chunkX, chunkZ); + } + + public T computeForRegionFile(final int chunkX, final int chunkZ, final boolean existingOnly, final Function function) { + final RegionFileStorage cache = this.getCache(); + final RegionFile regionFile; + synchronized (cache) { + try { + if (existingOnly) { + regionFile = ((ChunkSystemRegionFileStorage)(Object)cache).moonrise$getRegionFileIfExists(chunkX, chunkZ); + } else { + regionFile = cache.getRegionFile(new ChunkPos(chunkX, chunkZ), existingOnly); + } + } catch (final IOException ex) { + throw new RuntimeException(ex); + } + + return function.apply(regionFile); + } + } + + public T computeForRegionFileIfLoaded(final int chunkX, final int chunkZ, final Function function) { + final RegionFileStorage cache = this.getCache(); + final RegionFile regionFile; + + synchronized (cache) { + regionFile = ((ChunkSystemRegionFileStorage)(Object)cache).moonrise$getRegionFileIfLoaded(chunkX, chunkZ); + + return function.apply(regionFile); + } + } + } + + private static final class ChunkDataTask implements Runnable { + + private static final CompoundTag NOTHING_TO_WRITE = new CompoundTag(); + + private static final Logger LOGGER = LoggerFactory.getLogger(ChunkDataTask.class); + + private InProgressRead inProgressRead; + private volatile CompoundTag inProgressWrite = NOTHING_TO_WRITE; // only needs to be acquire/release + + private boolean failedWrite; + + private final ServerLevel world; + private final int chunkX; + private final int chunkZ; + private final ChunkDataController taskController; + + private final PrioritisedTask prioritisedTask; + + /* + * IO thread will perform reads before writes for a given chunk x and z + * + * How reads/writes are scheduled: + * + * If read is scheduled while scheduling write, take no special action and just schedule write + * If read is scheduled while scheduling read and no write is scheduled, chain the read task + * + * + * If write is scheduled while scheduling read, use the pending write data and ret immediately (so no read is scheduled) + * If write is scheduled while scheduling write (ignore read in progress), overwrite the write in progress data + * + * This allows the reads and writes to act as if they occur synchronously to the thread scheduling them, however + * it fails to properly propagate write failures thanks to writes overwriting each other + */ + + public ChunkDataTask(final ServerLevel world, final int chunkX, final int chunkZ, final ChunkDataController taskController, + final PrioritisedExecutor executor, final Priority priority) { + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.taskController = taskController; + this.prioritisedTask = executor.createTask(this, priority); + } + + @Override + public String toString() { + return "Task for world: '" + WorldUtil.getWorldName(this.world) + "' at (" + this.chunkX + "," + this.chunkZ + + ") type: " + this.taskController.type.name() + ", hash: " + this.hashCode(); + } + + @Override + public void run() { + final InProgressRead read = this.inProgressRead; + final long chunkKey = CoordinateUtils.getChunkKey(this.chunkX, this.chunkZ); + + if (read != null) { + final boolean[] canRead = new boolean[] { true }; + + if (read.hasNoWaiters()) { + // cancelled read? go to task controller to confirm + final ChunkDataTask inMap = this.taskController.tasks.compute(chunkKey, (final long keyInMap, final ChunkDataTask valueInMap) -> { + if (valueInMap == null) { + throw new IllegalStateException("Write completed concurrently, expected this task: " + ChunkDataTask.this.toString() + ", report this!"); + } + if (valueInMap != ChunkDataTask.this) { + throw new IllegalStateException("Chunk task mismatch, expected this task: " + ChunkDataTask.this.toString() + ", got: " + valueInMap.toString() + ", report this!"); + } + + if (!read.hasNoWaiters()) { + return valueInMap; + } else { + canRead[0] = false; + } + + return valueInMap.inProgressWrite == NOTHING_TO_WRITE ? null : valueInMap; + }); + + if (inMap == null) { + // read is cancelled - and no write pending, so we're done + return; + } + // if there is a write in progress, we don't actually have to worry about waiters gaining new entries - + // the readers will just use the in progress write, so the value in canRead is good to use without + // further synchronisation. + } + + if (canRead[0]) { + CompoundTag compound = null; + Throwable throwable = null; + + try { + compound = this.taskController.readData(this.chunkX, this.chunkZ); + } catch (final Throwable thr) { + throwable = thr; + LOGGER.error("Failed to read chunk data for task: " + this.toString(), thr); + } + read.complete(this, compound, throwable); + } + } + + CompoundTag write = this.inProgressWrite; + + if (write == NOTHING_TO_WRITE) { + final ChunkDataTask inMap = this.taskController.tasks.compute(chunkKey, (final long keyInMap, final ChunkDataTask valueInMap) -> { + if (valueInMap == null) { + throw new IllegalStateException("Write completed concurrently, expected this task: " + ChunkDataTask.this.toString() + ", report this!"); + } + if (valueInMap != ChunkDataTask.this) { + throw new IllegalStateException("Chunk task mismatch, expected this task: " + ChunkDataTask.this.toString() + ", got: " + valueInMap.toString() + ", report this!"); + } + return valueInMap.inProgressWrite == NOTHING_TO_WRITE ? null : valueInMap; + }); + + if (inMap == null) { + return; // set the task value to null, indicating we're done + } // else: inProgressWrite changed, so now we have something to write + } + + for (;;) { + write = this.inProgressWrite; + final CompoundTag dataWritten = write; + + boolean failedWrite = false; + + try { + this.taskController.writeData(this.chunkX, this.chunkZ, write); + } catch (final Throwable thr) { + if (thr instanceof RegionFileStorage.RegionFileSizeException) { + final int maxSize = RegionFile.MAX_CHUNK_SIZE / (1024 * 1024); + LOGGER.error("Chunk at (" + this.chunkX + "," + this.chunkZ + ") in '" + WorldUtil.getWorldName(this.world) + "' exceeds max size of " + maxSize + "MiB, it has been deleted from disk."); + } else { + failedWrite = thr instanceof IOException; + LOGGER.error("Failed to write chunk data for task: " + this.toString(), thr); + } + } + + final boolean finalFailWrite = failedWrite; + final boolean[] done = new boolean[] { false }; + + this.taskController.tasks.compute(chunkKey, (final long keyInMap, final ChunkDataTask valueInMap) -> { + if (valueInMap == null) { + throw new IllegalStateException("Write completed concurrently, expected this task: " + ChunkDataTask.this.toString() + ", report this!"); + } + if (valueInMap != ChunkDataTask.this) { + throw new IllegalStateException("Chunk task mismatch, expected this task: " + ChunkDataTask.this.toString() + ", got: " + valueInMap.toString() + ", report this!"); + } + if (valueInMap.inProgressWrite == dataWritten) { + valueInMap.failedWrite = finalFailWrite; + done[0] = true; + // keep the data in map if we failed the write so we can try to prevent data loss + return finalFailWrite ? valueInMap : null; + } + // different data than expected, means we need to retry write + return valueInMap; + }); + + if (done[0]) { + return; + } + + // fetch & write new data + continue; + } + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/ChunkDataController.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/ChunkDataController.java new file mode 100644 index 0000000000000000000000000000000000000000..c35e0c29700be48dda3e53e7d2db224766ef17b7 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/ChunkDataController.java @@ -0,0 +1,56 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller; + +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.storage.ChunkSystemChunkStorage; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import java.io.IOException; +import java.util.Optional; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CompletionException; + +public final class ChunkDataController extends RegionFileIOThread.ChunkDataController { + + private final ServerLevel world; + + public ChunkDataController(final ServerLevel world) { + super(RegionFileIOThread.RegionFileType.CHUNK_DATA); + this.world = world; + } + + @Override + public RegionFileStorage getCache() { + return ((ChunkSystemChunkStorage)this.world.getChunkSource().chunkMap).moonrise$getRegionStorage(); + } + + @Override + public void writeData(final int chunkX, final int chunkZ, final CompoundTag compound) throws IOException { + final CompletableFuture future = this.world.getChunkSource().chunkMap.write(new ChunkPos(chunkX, chunkZ), compound); + + try { + if (future != null) { + // rets non-null when sync writing (i.e. future should be completed here) + future.join(); + } + } catch (final CompletionException ex) { + if (ex.getCause() instanceof IOException ioException) { + throw ioException; + } + throw ex; + } + } + + @Override + public CompoundTag readData(final int chunkX, final int chunkZ) throws IOException { + try { + return this.world.getChunkSource().chunkMap.read(new ChunkPos(chunkX, chunkZ)).join().orElse(null); + } catch (final CompletionException ex) { + if (ex.getCause() instanceof IOException ioException) { + throw ioException; + } + throw ex; + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/EntityDataController.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/EntityDataController.java new file mode 100644 index 0000000000000000000000000000000000000000..fdd189ef056187941d43809c5d61cab717aecf60 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/EntityDataController.java @@ -0,0 +1,55 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller; + +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.storage.EntityStorage; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import net.minecraft.world.level.chunk.storage.RegionStorageInfo; +import java.io.IOException; +import java.nio.file.Path; + +public final class EntityDataController extends RegionFileIOThread.ChunkDataController { + + private final EntityRegionFileStorage storage; + + public EntityDataController(final EntityRegionFileStorage storage) { + super(RegionFileIOThread.RegionFileType.ENTITY_DATA); + this.storage = storage; + } + + @Override + public RegionFileStorage getCache() { + return this.storage; + } + + @Override + public void writeData(final int chunkX, final int chunkZ, final CompoundTag compound) throws IOException { + this.storage.write(new ChunkPos(chunkX, chunkZ), compound); + } + + @Override + public CompoundTag readData(final int chunkX, final int chunkZ) throws IOException { + return this.storage.read(new ChunkPos(chunkX, chunkZ)); + } + + public static final class EntityRegionFileStorage extends RegionFileStorage { + + public EntityRegionFileStorage(final RegionStorageInfo regionStorageInfo, final Path directory, + final boolean dsync) { + super(regionStorageInfo, directory, dsync); + } + + @Override + public void write(final ChunkPos pos, final CompoundTag nbt) throws IOException { + final ChunkPos nbtPos = nbt == null ? null : EntityStorage.readChunkPos(nbt); + if (nbtPos != null && !pos.equals(nbtPos)) { + throw new IllegalArgumentException( + "Entity chunk coordinate and serialized data do not have matching coordinates, trying to serialize coordinate " + pos.toString() + + " but compound says coordinate is " + nbtPos + " for world: " + this + ); + } + super.write(pos, nbt); + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/PoiDataController.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/PoiDataController.java new file mode 100644 index 0000000000000000000000000000000000000000..af867f8fedd0bb8f675e94243aa1a3f17363483b --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/io/datacontroller/PoiDataController.java @@ -0,0 +1,33 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller; + +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.storage.ChunkSystemSectionStorage; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import java.io.IOException; + +public final class PoiDataController extends RegionFileIOThread.ChunkDataController { + + private final ServerLevel world; + + public PoiDataController(final ServerLevel world) { + super(RegionFileIOThread.RegionFileType.POI_DATA); + this.world = world; + } + + @Override + public RegionFileStorage getCache() { + return ((ChunkSystemSectionStorage)this.world.getPoiManager()).moonrise$getRegionStorage(); + } + + @Override + public void writeData(final int chunkX, final int chunkZ, final CompoundTag compound) throws IOException { + ((ChunkSystemSectionStorage)this.world.getPoiManager()).moonrise$write(chunkX, chunkZ, compound); + } + + @Override + public CompoundTag readData(final int chunkX, final int chunkZ) throws IOException { + return ((ChunkSystemSectionStorage)this.world.getPoiManager()).moonrise$read(chunkX, chunkZ); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevel.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevel.java new file mode 100644 index 0000000000000000000000000000000000000000..eab09949c001fbfd708079fae83c45ab59fb25e7 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevel.java @@ -0,0 +1,20 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level; + +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; + +public interface ChunkSystemLevel { + + public EntityLookup moonrise$getEntityLookup(); + + public void moonrise$setEntityLookup(final EntityLookup entityLookup); + + public LevelChunk moonrise$getFullChunkIfLoaded(final int chunkX, final int chunkZ); + + public ChunkAccess moonrise$getAnyChunkIfLoaded(final int chunkX, final int chunkZ); + + public ChunkAccess moonrise$getSpecificChunkIfLoaded(final int chunkX, final int chunkZ, final ChunkStatus leastStatus); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevelReader.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevelReader.java new file mode 100644 index 0000000000000000000000000000000000000000..0b58701342d573fa43cdd06681534854a0e51d77 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemLevelReader.java @@ -0,0 +1,10 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level; + +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.status.ChunkStatus; + +public interface ChunkSystemLevelReader { + + public ChunkAccess moonrise$syncLoadNonFull(final int chunkX, final int chunkZ, final ChunkStatus status); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemServerLevel.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemServerLevel.java new file mode 100644 index 0000000000000000000000000000000000000000..d0d97588e02a7846ef9da57679a9ca4525daee17 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/ChunkSystemServerLevel.java @@ -0,0 +1,47 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import net.minecraft.core.BlockPos; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import java.util.List; +import java.util.function.Consumer; + +public interface ChunkSystemServerLevel extends ChunkSystemLevel { + + public ChunkTaskScheduler moonrise$getChunkTaskScheduler(); + + public RegionFileIOThread.ChunkDataController moonrise$getChunkDataController(); + + public RegionFileIOThread.ChunkDataController moonrise$getPoiChunkDataController(); + + public RegionFileIOThread.ChunkDataController moonrise$getEntityChunkDataController(); + + public int moonrise$getRegionChunkShift(); + + // Paper - marked closing not needed on CB + + public RegionizedPlayerChunkLoader moonrise$getPlayerChunkLoader(); + + public void moonrise$loadChunksAsync(final BlockPos pos, final int radiusBlocks, + final PrioritisedExecutor.Priority priority, + final Consumer> onLoad); + + public void moonrise$loadChunksAsync(final BlockPos pos, final int radiusBlocks, + final ChunkStatus chunkStatus, final PrioritisedExecutor.Priority priority, + final Consumer> onLoad); + + public void moonrise$loadChunksAsync(final int minChunkX, final int maxChunkX, final int minChunkZ, final int maxChunkZ, + final PrioritisedExecutor.Priority priority, + final Consumer> onLoad); + + public void moonrise$loadChunksAsync(final int minChunkX, final int maxChunkX, final int minChunkZ, final int maxChunkZ, + final ChunkStatus chunkStatus, final PrioritisedExecutor.Priority priority, + final Consumer> onLoad); + + public RegionizedPlayerChunkLoader.ViewDistanceHolder moonrise$getViewDistanceHolder(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkHolder.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkHolder.java new file mode 100644 index 0000000000000000000000000000000000000000..7d049d750df88762566f13a9c4fc7574a2df4825 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkHolder.java @@ -0,0 +1,26 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.chunk; + +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder; +import net.minecraft.server.level.ServerPlayer; +import net.minecraft.world.level.chunk.LevelChunk; +import java.util.List; + +public interface ChunkSystemChunkHolder { + + public NewChunkHolder moonrise$getRealChunkHolder(); + + public void moonrise$setRealChunkHolder(final NewChunkHolder newChunkHolder); + + public void moonrise$addReceivedChunk(final ServerPlayer player); + + public void moonrise$removeReceivedChunk(final ServerPlayer player); + + public boolean moonrise$hasChunkBeenSent(); + + public boolean moonrise$hasChunkBeenSent(final ServerPlayer to); + + public List moonrise$getPlayers(final boolean onlyOnWatchDistanceEdge); + + public LevelChunk moonrise$getFullChunk(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkStatus.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkStatus.java new file mode 100644 index 0000000000000000000000000000000000000000..f4bc44bb266763345c4e6f859c89352c769a104d --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemChunkStatus.java @@ -0,0 +1,26 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.chunk; + +import net.minecraft.world.level.chunk.status.ChunkStatus; +import java.util.concurrent.atomic.AtomicBoolean; + +public interface ChunkSystemChunkStatus { + + public boolean moonrise$isParallelCapable(); + + public void moonrise$setParallelCapable(final boolean value); + + public int moonrise$getWriteRadius(); + + public void moonrise$setWriteRadius(final int value); + + public ChunkStatus moonrise$getNextStatus(); + + public boolean moonrise$isEmptyLoadStatus(); + + public void moonrise$setEmptyLoadStatus(final boolean value); + + public boolean moonrise$isEmptyGenStatus(); + + public AtomicBoolean moonrise$getWarnedAboutNoImmediateComplete(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemDistanceManager.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemDistanceManager.java new file mode 100644 index 0000000000000000000000000000000000000000..883fe6401f1b9711fa544d18a815b4d638f580df --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemDistanceManager.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.chunk; + +import net.minecraft.server.level.ChunkMap; + +public interface ChunkSystemDistanceManager { + + public ChunkMap moonrise$getChunkMap(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemLevelChunk.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemLevelChunk.java new file mode 100644 index 0000000000000000000000000000000000000000..755b08dd32e568d341ceef8a8aef841831a0781d --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/chunk/ChunkSystemLevelChunk.java @@ -0,0 +1,7 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.chunk; + +public interface ChunkSystemLevelChunk { + + public boolean moonrise$isPostProcessingDone(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java new file mode 100644 index 0000000000000000000000000000000000000000..19672631d7c69ade16a6f966c72a4a9d57b77c55 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java @@ -0,0 +1,811 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.entity; + +import ca.spottedleaf.moonrise.common.list.EntityList; +import ca.spottedleaf.moonrise.patches.chunk_system.entity.ChunkSystemEntity; +import com.google.common.collect.ImmutableList; +import it.unimi.dsi.fastutil.objects.Reference2ObjectMap; +import it.unimi.dsi.fastutil.objects.Reference2ObjectOpenHashMap; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.nbt.ListTag; +import net.minecraft.nbt.NbtUtils; +import net.minecraft.nbt.Tag; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.util.Mth; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.entity.EntityType; +import net.minecraft.world.entity.boss.EnderDragonPart; +import net.minecraft.world.entity.boss.enderdragon.EnderDragon; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.chunk.storage.EntityStorage; +import net.minecraft.world.level.entity.Visibility; +import net.minecraft.world.phys.AABB; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; +import java.util.function.Predicate; +import org.bukkit.event.entity.EntityRemoveEvent; + +public final class ChunkEntitySlices { + + public final int minSection; + public final int maxSection; + public final int chunkX; + public final int chunkZ; + public final Level world; + + private final EntityCollectionBySection allEntities; + private final EntityCollectionBySection hardCollidingEntities; + private final Reference2ObjectOpenHashMap, EntityCollectionBySection> entitiesByClass; + private final Reference2ObjectOpenHashMap, EntityCollectionBySection> entitiesByType; + private final EntityList entities = new EntityList(); + + public FullChunkStatus status; + + private boolean isTransient; + + public boolean isTransient() { + return this.isTransient; + } + + public void setTransient(final boolean value) { + this.isTransient = value; + } + + public ChunkEntitySlices(final Level world, final int chunkX, final int chunkZ, final FullChunkStatus status, + final int minSection, final int maxSection) { // inclusive, inclusive + this.minSection = minSection; + this.maxSection = maxSection; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.world = world; + + this.allEntities = new EntityCollectionBySection(this); + this.hardCollidingEntities = new EntityCollectionBySection(this); + this.entitiesByClass = new Reference2ObjectOpenHashMap<>(); + this.entitiesByType = new Reference2ObjectOpenHashMap<>(); + + this.status = status; + } + + public static List readEntities(final ServerLevel world, final CompoundTag compoundTag) { + // TODO check this and below on update for format changes + return EntityType.loadEntitiesRecursive(compoundTag.getList("Entities", 10), world).collect(ImmutableList.toImmutableList()); + } + + // Paper start - rewrite chunk system + public static void copyEntities(final CompoundTag from, final CompoundTag into) { + if (from == null) { + return; + } + final ListTag entitiesFrom = from.getList("Entities", Tag.TAG_COMPOUND); + if (entitiesFrom == null || entitiesFrom.isEmpty()) { + return; + } + + final ListTag entitiesInto = into.getList("Entities", Tag.TAG_COMPOUND); + into.put("Entities", entitiesInto); // this is in case into doesn't have any entities + entitiesInto.addAll(0, entitiesFrom); + } + + public static CompoundTag saveEntityChunk(final List entities, final ChunkPos chunkPos, final ServerLevel world) { + return saveEntityChunk0(entities, chunkPos, world, false); + } + + public static CompoundTag saveEntityChunk0(final List entities, final ChunkPos chunkPos, final ServerLevel world, final boolean force) { + if (!force && entities.isEmpty()) { + return null; + } + + final ListTag entitiesTag = new ListTag(); + for (final Entity entity : entities) { + CompoundTag compoundTag = new CompoundTag(); + if (entity.save(compoundTag)) { + entitiesTag.add(compoundTag); + } + } + final CompoundTag ret = NbtUtils.addCurrentDataVersion(new CompoundTag()); + ret.put("Entities", entitiesTag); + EntityStorage.writeChunkPos(ret, chunkPos); + + return !force && entitiesTag.isEmpty() ? null : ret; + } + + public CompoundTag save() { + final int len = this.entities.size(); + if (len == 0) { + return null; + } + + final Entity[] rawData = this.entities.getRawData(); + final List collectedEntities = new ArrayList<>(len); + for (int i = 0; i < len; ++i) { + final Entity entity = rawData[i]; + if (entity.shouldBeSaved()) { + collectedEntities.add(entity); + } + } + + if (collectedEntities.isEmpty()) { + return null; + } + + return saveEntityChunk(collectedEntities, new ChunkPos(this.chunkX, this.chunkZ), (ServerLevel)this.world); + } + + // returns true if this chunk has transient entities remaining + public boolean unload() { + final int len = this.entities.size(); + final Entity[] collectedEntities = Arrays.copyOf(this.entities.getRawData(), len); + + for (int i = 0; i < len; ++i) { + final Entity entity = collectedEntities[i]; + if (entity.isRemoved()) { + // removed by us below + continue; + } + if (entity.shouldBeSaved()) { + entity.setRemoved(Entity.RemovalReason.UNLOADED_TO_CHUNK, EntityRemoveEvent.Cause.UNLOAD); + if (entity.isVehicle()) { + // we cannot assume that these entities are contained within this chunk, because entities can + // desync - so we need to remove them all + for (final Entity passenger : entity.getIndirectPassengers()) { + passenger.setRemoved(Entity.RemovalReason.UNLOADED_TO_CHUNK, EntityRemoveEvent.Cause.UNLOAD); + } + } + } + } + + return this.entities.size() != 0; + } + + // Paper start + public org.bukkit.entity.Entity[] getChunkEntities() { + List ret = new java.util.ArrayList<>(); + final Entity[] entities = this.entities.getRawData(); + for (int i = 0, size = Math.min(entities.length, this.entities.size()); i < size; ++i) { + final Entity entity = entities[i]; + if (entity == null) { + continue; + } + final org.bukkit.entity.Entity bukkit = entity.getBukkitEntity(); + if (bukkit != null && bukkit.isValid()) { + ret.add(bukkit); + } + } + + return ret.toArray(new org.bukkit.entity.Entity[0]); + } + // Paper end + + private List getAllEntities() { + final int len = this.entities.size(); + if (len == 0) { + return new ArrayList<>(); + } + + final Entity[] rawData = this.entities.getRawData(); + final List collectedEntities = new ArrayList<>(len); + for (int i = 0; i < len; ++i) { + collectedEntities.add(rawData[i]); + } + + return collectedEntities; + } + + public boolean isEmpty() { + return this.entities.size() == 0; + } + + public void mergeInto(final ChunkEntitySlices slices) { + final Entity[] entities = this.entities.getRawData(); + for (int i = 0, size = Math.min(entities.length, this.entities.size()); i < size; ++i) { + final Entity entity = entities[i]; + slices.addEntity(entity, ((ChunkSystemEntity)entity).moonrise$getSectionY()); + } + } + + private boolean preventStatusUpdates; + public boolean startPreventingStatusUpdates() { + final boolean ret = this.preventStatusUpdates; + this.preventStatusUpdates = true; + return ret; + } + + public boolean isPreventingStatusUpdates() { + return this.preventStatusUpdates; + } + + public void stopPreventingStatusUpdates(final boolean prev) { + this.preventStatusUpdates = prev; + } + + public void updateStatus(final FullChunkStatus status, final EntityLookup lookup) { + this.status = status; + + final Entity[] entities = this.entities.getRawData(); + + for (int i = 0, size = this.entities.size(); i < size; ++i) { + final Entity entity = entities[i]; + + final Visibility oldVisibility = EntityLookup.getEntityStatus(entity); + ((ChunkSystemEntity)entity).moonrise$setChunkStatus(status); + final Visibility newVisibility = EntityLookup.getEntityStatus(entity); + + lookup.entityStatusChange(entity, this, oldVisibility, newVisibility, false, false, false); + } + } + + public boolean addEntity(final Entity entity, final int chunkSection) { + if (!this.entities.add(entity)) { + return false; + } + ((ChunkSystemEntity)entity).moonrise$setChunkStatus(this.status); + final int sectionIndex = chunkSection - this.minSection; + + this.allEntities.addEntity(entity, sectionIndex); + + if (((ChunkSystemEntity)entity).moonrise$isHardColliding()) { + this.hardCollidingEntities.addEntity(entity, sectionIndex); + } + + for (final Iterator, EntityCollectionBySection>> iterator = + this.entitiesByClass.reference2ObjectEntrySet().fastIterator(); iterator.hasNext();) { + final Reference2ObjectMap.Entry, EntityCollectionBySection> entry = iterator.next(); + + if (entry.getKey().isInstance(entity)) { + entry.getValue().addEntity(entity, sectionIndex); + } + } + + EntityCollectionBySection byType = this.entitiesByType.get(entity.getType()); + if (byType != null) { + byType.addEntity(entity, sectionIndex); + } else { + this.entitiesByType.put(entity.getType(), byType = new EntityCollectionBySection(this)); + byType.addEntity(entity, sectionIndex); + } + + return true; + } + + public boolean removeEntity(final Entity entity, final int chunkSection) { + if (!this.entities.remove(entity)) { + return false; + } + ((ChunkSystemEntity)entity).moonrise$setChunkStatus(null); + final int sectionIndex = chunkSection - this.minSection; + + this.allEntities.removeEntity(entity, sectionIndex); + + if (((ChunkSystemEntity)entity).moonrise$isHardColliding()) { + this.hardCollidingEntities.removeEntity(entity, sectionIndex); + } + + for (final Iterator, EntityCollectionBySection>> iterator = + this.entitiesByClass.reference2ObjectEntrySet().fastIterator(); iterator.hasNext();) { + final Reference2ObjectMap.Entry, EntityCollectionBySection> entry = iterator.next(); + + if (entry.getKey().isInstance(entity)) { + entry.getValue().removeEntity(entity, sectionIndex); + } + } + + final EntityCollectionBySection byType = this.entitiesByType.get(entity.getType()); + byType.removeEntity(entity, sectionIndex); + + return true; + } + + public void getHardCollidingEntities(final Entity except, final AABB box, final List into, final Predicate predicate) { + this.hardCollidingEntities.getEntities(except, box, into, predicate); + } + + public void getEntities(final Entity except, final AABB box, final List into, final Predicate predicate) { + this.allEntities.getEntitiesWithEnderDragonParts(except, box, into, predicate); + } + + public void getEntitiesWithoutDragonParts(final Entity except, final AABB box, final List into, final Predicate predicate) { + this.allEntities.getEntities(except, box, into, predicate); + } + + + public boolean getEntities(final Entity except, final AABB box, final List into, final Predicate predicate, + final int maxCount) { + return this.allEntities.getEntitiesWithEnderDragonPartsLimited(except, box, into, predicate, maxCount); + } + + public boolean getEntitiesWithoutDragonParts(final Entity except, final AABB box, final List into, final Predicate predicate, + final int maxCount) { + return this.allEntities.getEntitiesLimited(except, box, into, predicate, maxCount); + } + + public void getEntities(final EntityType type, final AABB box, final List into, + final Predicate predicate) { + final EntityCollectionBySection byType = this.entitiesByType.get(type); + + if (byType != null) { + byType.getEntities((Entity)null, box, (List)into, (Predicate) predicate); + } + } + + public boolean getEntities(final EntityType type, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + final EntityCollectionBySection byType = this.entitiesByType.get(type); + + if (byType != null) { + return byType.getEntitiesLimited((Entity)null, box, (List)into, (Predicate)predicate, maxCount); + } + + return false; + } + + protected EntityCollectionBySection initClass(final Class clazz) { + final EntityCollectionBySection ret = new EntityCollectionBySection(this); + + for (int sectionIndex = 0; sectionIndex < this.allEntities.entitiesBySection.length; ++sectionIndex) { + final BasicEntityList sectionEntities = this.allEntities.entitiesBySection[sectionIndex]; + if (sectionEntities == null) { + continue; + } + + final Entity[] storage = sectionEntities.storage; + + for (int i = 0, len = Math.min(storage.length, sectionEntities.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (clazz.isInstance(entity)) { + ret.addEntity(entity, sectionIndex); + } + } + } + + return ret; + } + + public void getEntities(final Class clazz, final Entity except, final AABB box, final List into, + final Predicate predicate) { + EntityCollectionBySection collection = this.entitiesByClass.get(clazz); + if (collection != null) { + collection.getEntitiesWithEnderDragonParts(except, clazz, box, (List)into, (Predicate)predicate); + } else { + this.entitiesByClass.put(clazz, collection = this.initClass(clazz)); + collection.getEntitiesWithEnderDragonParts(except, clazz, box, (List)into, (Predicate)predicate); + } + } + + public boolean getEntities(final Class clazz, final Entity except, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + EntityCollectionBySection collection = this.entitiesByClass.get(clazz); + if (collection != null) { + return collection.getEntitiesWithEnderDragonPartsLimited(except, clazz, box, (List)into, (Predicate)predicate, maxCount); + } else { + this.entitiesByClass.put(clazz, collection = this.initClass(clazz)); + return collection.getEntitiesWithEnderDragonPartsLimited(except, clazz, box, (List)into, (Predicate)predicate, maxCount); + } + } + + private static final class BasicEntityList { + + private static final Entity[] EMPTY = new Entity[0]; + private static final int DEFAULT_CAPACITY = 4; + + private E[] storage; + private int size; + + public BasicEntityList() { + this(0); + } + + public BasicEntityList(final int cap) { + this.storage = (E[])(cap <= 0 ? EMPTY : new Entity[cap]); + } + + public boolean isEmpty() { + return this.size == 0; + } + + public int size() { + return this.size; + } + + private void resize() { + if (this.storage == EMPTY) { + this.storage = (E[])new Entity[DEFAULT_CAPACITY]; + } else { + this.storage = Arrays.copyOf(this.storage, this.storage.length * 2); + } + } + + public void add(final E entity) { + final int idx = this.size++; + if (idx >= this.storage.length) { + this.resize(); + this.storage[idx] = entity; + } else { + this.storage[idx] = entity; + } + } + + public int indexOf(final E entity) { + final E[] storage = this.storage; + + for (int i = 0, len = Math.min(this.storage.length, this.size); i < len; ++i) { + if (storage[i] == entity) { + return i; + } + } + + return -1; + } + + public boolean remove(final E entity) { + final int idx = this.indexOf(entity); + if (idx == -1) { + return false; + } + + final int size = --this.size; + final E[] storage = this.storage; + if (idx != size) { + System.arraycopy(storage, idx + 1, storage, idx, size - idx); + } + + storage[size] = null; + + return true; + } + + public boolean has(final E entity) { + return this.indexOf(entity) != -1; + } + } + + private static final class EntityCollectionBySection { + + private final ChunkEntitySlices slices; + private final BasicEntityList[] entitiesBySection; + private int count; + + public EntityCollectionBySection(final ChunkEntitySlices slices) { + this.slices = slices; + + final int sectionCount = slices.maxSection - slices.minSection + 1; + + this.entitiesBySection = new BasicEntityList[sectionCount]; + } + + public void addEntity(final Entity entity, final int sectionIndex) { + BasicEntityList list = this.entitiesBySection[sectionIndex]; + + if (list != null && list.has(entity)) { + return; + } + + if (list == null) { + this.entitiesBySection[sectionIndex] = list = new BasicEntityList<>(); + } + + list.add(entity); + ++this.count; + } + + public void removeEntity(final Entity entity, final int sectionIndex) { + final BasicEntityList list = this.entitiesBySection[sectionIndex]; + + if (list == null || !list.remove(entity)) { + return; + } + + --this.count; + + if (list.isEmpty()) { + this.entitiesBySection[sectionIndex] = null; + } + } + + public void getEntities(final Entity except, final AABB box, final List into, final Predicate predicate) { + if (this.count == 0) { + return; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate != null && !predicate.test(entity)) { + continue; + } + + into.add(entity); + } + } + } + + public boolean getEntitiesLimited(final Entity except, final AABB box, final List into, final Predicate predicate, + final int maxCount) { + if (this.count == 0) { + return false; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate != null && !predicate.test(entity)) { + continue; + } + + into.add(entity); + if (into.size() >= maxCount) { + return true; + } + } + } + + return false; + } + + public void getEntitiesWithEnderDragonParts(final Entity except, final AABB box, final List into, + final Predicate predicate) { + if (this.count == 0) { + return; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate == null || predicate.test(entity)) { + into.add(entity); + } // else: continue to test the ender dragon parts + + if (entity instanceof EnderDragon) { + for (final EnderDragonPart part : ((EnderDragon)entity).getSubEntities()) { + if (part == except || !part.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate != null && !predicate.test(part)) { + continue; + } + + into.add(part); + } + } + } + } + } + + public boolean getEntitiesWithEnderDragonPartsLimited(final Entity except, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + if (this.count == 0) { + return false; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate == null || predicate.test(entity)) { + into.add(entity); + if (into.size() >= maxCount) { + return true; + } + } // else: continue to test the ender dragon parts + + if (entity instanceof EnderDragon) { + for (final EnderDragonPart part : ((EnderDragon)entity).getSubEntities()) { + if (part == except || !part.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate != null && !predicate.test(part)) { + continue; + } + + into.add(part); + if (into.size() >= maxCount) { + return true; + } + } + } + } + } + + return false; + } + + public void getEntitiesWithEnderDragonParts(final Entity except, final Class clazz, final AABB box, final List into, + final Predicate predicate) { + if (this.count == 0) { + return; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate == null || predicate.test(entity)) { + into.add(entity); + } // else: continue to test the ender dragon parts + + if (entity instanceof EnderDragon) { + for (final EnderDragonPart part : ((EnderDragon)entity).getSubEntities()) { + if (part == except || !part.getBoundingBox().intersects(box) || !clazz.isInstance(part)) { + continue; + } + + if (predicate != null && !predicate.test(part)) { + continue; + } + + into.add(part); + } + } + } + } + } + + public boolean getEntitiesWithEnderDragonPartsLimited(final Entity except, final Class clazz, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + if (this.count == 0) { + return false; + } + + final int minSection = this.slices.minSection; + final int maxSection = this.slices.maxSection; + + final int min = Mth.clamp(Mth.floor(box.minY - 2.0) >> 4, minSection, maxSection); + final int max = Mth.clamp(Mth.floor(box.maxY + 2.0) >> 4, minSection, maxSection); + + final BasicEntityList[] entitiesBySection = this.entitiesBySection; + + for (int section = min; section <= max; ++section) { + final BasicEntityList list = entitiesBySection[section - minSection]; + + if (list == null) { + continue; + } + + final Entity[] storage = list.storage; + + for (int i = 0, len = Math.min(storage.length, list.size()); i < len; ++i) { + final Entity entity = storage[i]; + + if (entity == null || entity == except || !entity.getBoundingBox().intersects(box)) { + continue; + } + + if (predicate == null || predicate.test(entity)) { + into.add(entity); + if (into.size() >= maxCount) { + return true; + } + } // else: continue to test the ender dragon parts + + if (entity instanceof EnderDragon) { + for (final EnderDragonPart part : ((EnderDragon)entity).getSubEntities()) { + if (part == except || !part.getBoundingBox().intersects(box) || !clazz.isInstance(part)) { + continue; + } + + if (predicate != null && !predicate.test(part)) { + continue; + } + + into.add(part); + if (into.size() >= maxCount) { + return true; + } + } + } + } + } + + return false; + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/EntityLookup.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/EntityLookup.java new file mode 100644 index 0000000000000000000000000000000000000000..3a8c192d1aed186ff506d69e3960e3b2792ddbd1 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/EntityLookup.java @@ -0,0 +1,1044 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.entity; + +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.concurrentutil.map.SWMRLong2ObjectHashTable; +import ca.spottedleaf.moonrise.common.list.EntityList; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.entity.ChunkSystemEntity; +import net.minecraft.core.BlockPos; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.util.AbortableIterationConsumer; +import net.minecraft.util.Mth; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.entity.EntityType; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.entity.EntityInLevelCallback; +import net.minecraft.world.level.entity.EntityTypeTest; +import net.minecraft.world.level.entity.LevelCallback; +import net.minecraft.world.level.entity.LevelEntityGetter; +import net.minecraft.world.level.entity.Visibility; +import net.minecraft.world.phys.AABB; +import net.minecraft.world.phys.Vec3; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; +import java.util.NoSuchElementException; +import java.util.Objects; +import java.util.UUID; +import java.util.concurrent.ConcurrentHashMap; +import java.util.function.Consumer; +import java.util.function.Predicate; + +public abstract class EntityLookup implements LevelEntityGetter { + + private static final Logger LOGGER = LoggerFactory.getLogger(EntityLookup.class); + + protected static final int REGION_SHIFT = 5; + protected static final int REGION_MASK = (1 << REGION_SHIFT) - 1; + protected static final int REGION_SIZE = 1 << REGION_SHIFT; + + public final Level world; + + protected final SWMRLong2ObjectHashTable regions = new SWMRLong2ObjectHashTable<>(128, 0.5f); + + protected final int minSection; // inclusive + protected final int maxSection; // inclusive + protected final LevelCallback worldCallback; + + protected final ConcurrentLong2ReferenceChainedHashTable entityById = new ConcurrentLong2ReferenceChainedHashTable<>(); + protected final ConcurrentHashMap entityByUUID = new ConcurrentHashMap<>(); + protected final EntityList accessibleEntities = new EntityList(); + + public EntityLookup(final Level world, final LevelCallback worldCallback) { + this.world = world; + this.minSection = WorldUtil.getMinSection(world); + this.maxSection = WorldUtil.getMaxSection(world); + this.worldCallback = worldCallback; + } + + protected abstract Boolean blockTicketUpdates(); + + protected abstract void setBlockTicketUpdates(final Boolean value); + + protected abstract void checkThread(final int chunkX, final int chunkZ, final String reason); + + protected abstract void checkThread(final Entity entity, final String reason); + + protected abstract ChunkEntitySlices createEntityChunk(final int chunkX, final int chunkZ, final boolean transientChunk); + + protected abstract void onEmptySlices(final int chunkX, final int chunkZ); + + private static Entity maskNonAccessible(final Entity entity) { + if (entity == null) { + return null; + } + final Visibility visibility = EntityLookup.getEntityStatus(entity); + return visibility.isAccessible() ? entity : null; + } + + @Override + public Entity get(final int id) { + return maskNonAccessible(this.entityById.get((long)id)); + } + + @Override + public Entity get(final UUID id) { + return maskNonAccessible(this.entityByUUID.get(id)); + } + + public boolean hasEntity(final UUID uuid) { + return this.get(uuid) != null; + } + + public String getDebugInfo() { + return "count_id:" + this.entityById.size() + ",count_uuid:" + this.entityByUUID.size() + ",region_count:" + this.regions.size(); + } + + protected static final class ArrayIterable implements Iterable { + + private final T[] array; + private final int off; + private final int length; + + public ArrayIterable(final T[] array, final int off, final int length) { + this.array = array; + this.off = off; + this.length = length; + if (length > array.length) { + throw new IllegalArgumentException("Length must be no greater-than the array length"); + } + } + + @Override + public Iterator iterator() { + return new ArrayIterator<>(this.array, this.off, this.length); + } + + protected static final class ArrayIterator implements Iterator { + + private final T[] array; + private int off; + private final int length; + + public ArrayIterator(final T[] array, final int off, final int length) { + this.array = array; + this.off = off; + this.length = length; + } + + @Override + public boolean hasNext() { + return this.off < this.length; + } + + @Override + public T next() { + if (this.off >= this.length) { + throw new NoSuchElementException(); + } + return this.array[this.off++]; + } + + @Override + public void remove() { + throw new UnsupportedOperationException(); + } + } + } + + @Override + public Iterable getAll() { + synchronized (this.accessibleEntities) { + final int len = this.accessibleEntities.size(); + final Entity[] cpy = Arrays.copyOf(this.accessibleEntities.getRawData(), len, Entity[].class); + + Objects.checkFromToIndex(0, len, cpy.length); + + return new ArrayIterable<>(cpy, 0, len); + } + } + + public int getEntityCount() { + synchronized (this.accessibleEntities) { + return this.accessibleEntities.size(); + } + } + + public Entity[] getAllCopy() { + synchronized (this.accessibleEntities) { + return Arrays.copyOf(this.accessibleEntities.getRawData(), this.accessibleEntities.size(), Entity[].class); + } + } + + @Override + public void get(final EntityTypeTest filter, final AbortableIterationConsumer action) { + for (final Iterator iterator = this.entityById.valueIterator(); iterator.hasNext();) { + final Entity entity = iterator.next(); + final Visibility visibility = EntityLookup.getEntityStatus(entity); + if (!visibility.isAccessible()) { + continue; + } + final U casted = filter.tryCast(entity); + if (casted != null && action.accept(casted).shouldAbort()) { + break; + } + } + } + + @Override + public void get(final AABB box, final Consumer action) { + List entities = new ArrayList<>(); + this.getEntitiesWithoutDragonParts(null, box, entities, null); + for (int i = 0, len = entities.size(); i < len; ++i) { + action.accept(entities.get(i)); + } + } + + @Override + public void get(final EntityTypeTest filter, final AABB box, final AbortableIterationConsumer action) { + List entities = new ArrayList<>(); + this.getEntitiesWithoutDragonParts(null, box, entities, null); + for (int i = 0, len = entities.size(); i < len; ++i) { + final U casted = filter.tryCast(entities.get(i)); + if (casted != null && action.accept(casted).shouldAbort()) { + break; + } + } + } + + public void entityStatusChange(final Entity entity, final ChunkEntitySlices slices, final Visibility oldVisibility, final Visibility newVisibility, final boolean moved, + final boolean created, final boolean destroyed) { + this.checkThread(entity, "Entity status change must only happen on the main thread"); + + if (((ChunkSystemEntity)entity).moonrise$isUpdatingSectionStatus()) { + // recursive status update + LOGGER.error("Cannot recursively update entity chunk status for entity " + entity, new Throwable()); + return; + } + + final boolean entityStatusUpdateBefore = slices == null ? false : slices.startPreventingStatusUpdates(); + + if (entityStatusUpdateBefore) { + LOGGER.error("Cannot update chunk status for entity " + entity + " since entity chunk (" + slices.chunkX + "," + slices.chunkZ + ") is receiving update", new Throwable()); + return; + } + + try { + final Boolean ticketBlockBefore = this.blockTicketUpdates(); + try { + ((ChunkSystemEntity)entity).moonrise$setUpdatingSectionStatus(true); + try { + if (created) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onCreated(entity); + } + } + + if (oldVisibility == newVisibility) { + if (moved && newVisibility.isAccessible()) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onSectionChange(entity); + } + } + return; + } + + if (newVisibility.ordinal() > oldVisibility.ordinal()) { + // status upgrade + if (!oldVisibility.isAccessible() && newVisibility.isAccessible()) { + synchronized (this.accessibleEntities) { + this.accessibleEntities.add(entity); + } + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onTrackingStart(entity); + } + } + + if (!oldVisibility.isTicking() && newVisibility.isTicking()) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onTickingStart(entity); + } + } + } else { + // status downgrade + if (oldVisibility.isTicking() && !newVisibility.isTicking()) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onTickingEnd(entity); + } + } + + if (oldVisibility.isAccessible() && !newVisibility.isAccessible()) { + synchronized (this.accessibleEntities) { + this.accessibleEntities.remove(entity); + } + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onTrackingEnd(entity); + } + } + } + + if (moved && newVisibility.isAccessible()) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onSectionChange(entity); + } + } + + if (destroyed) { + if (EntityLookup.this.worldCallback != null) { + EntityLookup.this.worldCallback.onDestroyed(entity); + } + } + } finally { + ((ChunkSystemEntity)entity).moonrise$setUpdatingSectionStatus(false); + } + } finally { + this.setBlockTicketUpdates(ticketBlockBefore); + } + } finally { + if (slices != null) { + slices.stopPreventingStatusUpdates(false); + } + } + } + + public void chunkStatusChange(final int x, final int z, final FullChunkStatus newStatus) { + this.getChunk(x, z).updateStatus(newStatus, this); + } + + public void addLegacyChunkEntities(final List entities, final ChunkPos forChunk) { + this.addEntityChunk(entities, forChunk, true); + } + + public void addEntityChunkEntities(final List entities, final ChunkPos forChunk) { + this.addEntityChunk(entities, forChunk, true); + } + + public void addWorldGenChunkEntities(final List entities, final ChunkPos forChunk) { + this.addEntityChunk(entities, forChunk, false); + } + + protected void addRecursivelySafe(final Entity root, final boolean fromDisk) { + if (!this.addEntity(root, fromDisk)) { + // possible we are a passenger, and so should dismount from any valid entity in the world + root.stopRiding(); + return; + } + for (final Entity passenger : root.getPassengers()) { + this.addRecursivelySafe(passenger, fromDisk); + } + } + + protected void addEntityChunk(final List entities, final ChunkPos forChunk, final boolean fromDisk) { + for (int i = 0, len = entities.size(); i < len; ++i) { + final Entity entity = entities.get(i); + if (entity.isPassenger()) { + continue; + } + + if (forChunk != null && !entity.chunkPosition().equals(forChunk)) { + LOGGER.warn("Root entity " + entity + " is outside of serialized chunk " + forChunk); + // can't set removed here, as we may not own the chunk position + // skip the entity + continue; + } + + final Vec3 rootPosition = entity.position(); + + // always adjust positions before adding passengers in case plugins access the entity, and so that + // they are added to the right entity chunk + for (final Entity passenger : entity.getIndirectPassengers()) { + if (forChunk != null && !passenger.chunkPosition().equals(forChunk)) { + passenger.setPosRaw(rootPosition.x, rootPosition.y, rootPosition.z); + } + } + + this.addRecursivelySafe(entity, fromDisk); + } + } + + public boolean addNewEntity(final Entity entity) { + return this.addEntity(entity, false); + } + + public static Visibility getEntityStatus(final Entity entity) { + if (entity.isAlwaysTicking()) { + return Visibility.TICKING; + } + final FullChunkStatus entityStatus = ((ChunkSystemEntity)entity).moonrise$getChunkStatus(); + return Visibility.fromFullChunkStatus(entityStatus == null ? FullChunkStatus.INACCESSIBLE : entityStatus); + } + + protected boolean addEntity(final Entity entity, final boolean fromDisk) { + final BlockPos pos = entity.blockPosition(); + final int sectionX = pos.getX() >> 4; + final int sectionY = Mth.clamp(pos.getY() >> 4, this.minSection, this.maxSection); + final int sectionZ = pos.getZ() >> 4; + this.checkThread(sectionX, sectionZ, "Cannot add entity off-main thread"); + + if (entity.isRemoved()) { + LOGGER.warn("Refusing to add removed entity: " + entity); + return false; + } + + if (((ChunkSystemEntity)entity).moonrise$isUpdatingSectionStatus()) { + LOGGER.warn("Entity " + entity + " is currently prevented from being added/removed to world since it is processing section status updates", new Throwable()); + return false; + } + + Entity currentlyMapped = this.entityById.putIfAbsent((long)entity.getId(), entity); + if (currentlyMapped != null) { + LOGGER.warn("Entity id already exists: " + entity.getId() + ", mapped to " + currentlyMapped + ", can't add " + entity); + return false; + } + + currentlyMapped = this.entityByUUID.putIfAbsent(entity.getUUID(), entity); + if (currentlyMapped != null) { + // need to remove mapping for id + this.entityById.remove((long)entity.getId(), entity); + LOGGER.warn("Entity uuid already exists: " + entity.getUUID() + ", mapped to " + currentlyMapped + ", can't add " + entity); + return false; + } + + ((ChunkSystemEntity)entity).moonrise$setSectionX(sectionX); + ((ChunkSystemEntity)entity).moonrise$setSectionY(sectionY); + ((ChunkSystemEntity)entity).moonrise$setSectionZ(sectionZ); + final ChunkEntitySlices slices = this.getOrCreateChunk(sectionX, sectionZ); + if (!slices.addEntity(entity, sectionY)) { + LOGGER.warn("Entity " + entity + " added to world '" + WorldUtil.getWorldName(this.world) + "', but was already contained in entity chunk (" + sectionX + "," + sectionZ + ")"); + } + + entity.setLevelCallback(new EntityCallback(entity)); + + this.entityStatusChange(entity, slices, Visibility.HIDDEN, getEntityStatus(entity), false, !fromDisk, false); + + return true; + } + + public boolean canRemoveEntity(final Entity entity) { + if (((ChunkSystemEntity)entity).moonrise$isUpdatingSectionStatus()) { + return false; + } + + final int sectionX = ((ChunkSystemEntity)entity).moonrise$getSectionX(); + final int sectionZ = ((ChunkSystemEntity)entity).moonrise$getSectionZ(); + final ChunkEntitySlices slices = this.getChunk(sectionX, sectionZ); + return slices == null || !slices.isPreventingStatusUpdates(); + } + + protected void removeEntity(final Entity entity) { + final int sectionX = ((ChunkSystemEntity)entity).moonrise$getSectionX(); + final int sectionY = ((ChunkSystemEntity)entity).moonrise$getSectionY(); + final int sectionZ = ((ChunkSystemEntity)entity).moonrise$getSectionZ(); + this.checkThread(sectionX, sectionZ, "Cannot remove entity off-main"); + if (!entity.isRemoved()) { + throw new IllegalStateException("Only call Entity#setRemoved to remove an entity"); + } + final ChunkEntitySlices slices = this.getChunk(sectionX, sectionZ); + // all entities should be in a chunk + if (slices == null) { + LOGGER.warn("Cannot remove entity " + entity + " from null entity slices (" + sectionX + "," + sectionZ + ")"); + } else { + if (slices.isPreventingStatusUpdates()) { + throw new IllegalStateException("Attempting to remove entity " + entity + " from entity slices (" + sectionX + "," + sectionZ + ") that is receiving status updates"); + } + if (!slices.removeEntity(entity, sectionY)) { + LOGGER.warn("Failed to remove entity " + entity + " from entity slices (" + sectionX + "," + sectionZ + ")"); + } + } + ((ChunkSystemEntity)entity).moonrise$setSectionX(Integer.MIN_VALUE); + ((ChunkSystemEntity)entity).moonrise$setSectionY(Integer.MIN_VALUE); + ((ChunkSystemEntity)entity).moonrise$setSectionZ(Integer.MIN_VALUE); + + + Entity currentlyMapped; + if ((currentlyMapped = this.entityById.remove(entity.getId(), entity)) != entity) { + LOGGER.warn("Failed to remove entity " + entity + " by id, current entity mapped: " + currentlyMapped); + } + + Entity[] currentlyMappedArr = new Entity[1]; + + // need reference equality + this.entityByUUID.compute(entity.getUUID(), (final UUID keyInMap, final Entity valueInMap) -> { + currentlyMappedArr[0] = valueInMap; + if (valueInMap != entity) { + return valueInMap; + } + return null; + }); + + if (currentlyMappedArr[0] != entity) { + LOGGER.warn("Failed to remove entity " + entity + " by uuid, current entity mapped: " + currentlyMappedArr[0]); + } + + if (slices != null && slices.isEmpty()) { + this.onEmptySlices(sectionX, sectionZ); + } + } + + protected ChunkEntitySlices moveEntity(final Entity entity) { + // ensure we own the entity + this.checkThread(entity, "Cannot move entity off-main"); + + final int sectionX = ((ChunkSystemEntity)entity).moonrise$getSectionX(); + final int sectionY = ((ChunkSystemEntity)entity).moonrise$getSectionY(); + final int sectionZ = ((ChunkSystemEntity)entity).moonrise$getSectionZ(); + final BlockPos newPos = entity.blockPosition(); + final int newSectionX = newPos.getX() >> 4; + final int newSectionY = Mth.clamp(newPos.getY() >> 4, this.minSection, this.maxSection); + final int newSectionZ = newPos.getZ() >> 4; + + if (newSectionX == sectionX && newSectionY == sectionY && newSectionZ == sectionZ) { + return null; + } + + // ensure the new section is owned by this tick thread + this.checkThread(newSectionX, newSectionZ, "Cannot move entity off-main"); + + // ensure the old section is owned by this tick thread + this.checkThread(sectionX, sectionZ, "Cannot move entity off-main"); + + final ChunkEntitySlices old = this.getChunk(sectionX, sectionZ); + final ChunkEntitySlices slices = this.getOrCreateChunk(newSectionX, newSectionZ); + + if (!old.removeEntity(entity, sectionY)) { + LOGGER.warn("Could not remove entity " + entity + " from its old chunk section (" + sectionX + "," + sectionY + "," + sectionZ + ") since it was not contained in the section"); + } + + if (!slices.addEntity(entity, newSectionY)) { + LOGGER.warn("Could not add entity " + entity + " to its new chunk section (" + newSectionX + "," + newSectionY + "," + newSectionZ + ") as it is already contained in the section"); + } + + ((ChunkSystemEntity)entity).moonrise$setSectionX(newSectionX); + ((ChunkSystemEntity)entity).moonrise$setSectionY(newSectionY); + ((ChunkSystemEntity)entity).moonrise$setSectionZ(newSectionZ); + + if (old.isEmpty()) { + this.onEmptySlices(sectionX, sectionZ); + } + + return slices; + } + + public void getEntitiesWithoutDragonParts(final Entity except, final AABB box, final List into, final Predicate predicate) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + chunk.getEntitiesWithoutDragonParts(except, box, into, predicate); + } + } + } + } + } + + public void getEntities(final Entity except, final AABB box, final List into, final Predicate predicate) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + chunk.getEntities(except, box, into, predicate); + } + } + } + } + } + + public void getHardCollidingEntities(final Entity except, final AABB box, final List into, final Predicate predicate) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + chunk.getHardCollidingEntities(except, box, into, predicate); + } + } + } + } + } + + public void getEntities(final EntityType type, final AABB box, final List into, + final Predicate predicate) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + chunk.getEntities(type, box, (List)into, (Predicate)predicate); + } + } + } + } + } + + public void getEntities(final Class clazz, final Entity except, final AABB box, final List into, + final Predicate predicate) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + chunk.getEntities(clazz, except, box, into, predicate); + } + } + } + } + } + + //////// Limited //////// + + public void getEntitiesWithoutDragonParts(final Entity except, final AABB box, final List into, final Predicate predicate, + final int maxCount) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + if (chunk.getEntitiesWithoutDragonParts(except, box, into, predicate, maxCount)) { + return; + } + } + } + } + } + } + + public void getEntities(final Entity except, final AABB box, final List into, final Predicate predicate, + final int maxCount) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + if (chunk.getEntities(except, box, into, predicate, maxCount)) { + return; + } + } + } + } + } + } + + public void getEntities(final EntityType type, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + if (chunk.getEntities(type, box, (List)into, (Predicate)predicate, maxCount)) { + return; + } + } + } + } + } + } + + public void getEntities(final Class clazz, final Entity except, final AABB box, final List into, + final Predicate predicate, final int maxCount) { + final int minChunkX = (Mth.floor(box.minX) - 2) >> 4; + final int minChunkZ = (Mth.floor(box.minZ) - 2) >> 4; + final int maxChunkX = (Mth.floor(box.maxX) + 2) >> 4; + final int maxChunkZ = (Mth.floor(box.maxZ) + 2) >> 4; + + final int minRegionX = minChunkX >> REGION_SHIFT; + final int minRegionZ = minChunkZ >> REGION_SHIFT; + final int maxRegionX = maxChunkX >> REGION_SHIFT; + final int maxRegionZ = maxChunkZ >> REGION_SHIFT; + + for (int currRegionZ = minRegionZ; currRegionZ <= maxRegionZ; ++currRegionZ) { + final int minZ = currRegionZ == minRegionZ ? minChunkZ & REGION_MASK : 0; + final int maxZ = currRegionZ == maxRegionZ ? maxChunkZ & REGION_MASK : REGION_MASK; + + for (int currRegionX = minRegionX; currRegionX <= maxRegionX; ++currRegionX) { + final ChunkSlicesRegion region = this.getRegion(currRegionX, currRegionZ); + + if (region == null) { + continue; + } + + final int minX = currRegionX == minRegionX ? minChunkX & REGION_MASK : 0; + final int maxX = currRegionX == maxRegionX ? maxChunkX & REGION_MASK : REGION_MASK; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final ChunkEntitySlices chunk = region.get(currX | (currZ << REGION_SHIFT)); + if (chunk == null || !chunk.status.isOrAfter(FullChunkStatus.FULL)) { + continue; + } + + if (chunk.getEntities(clazz, except, box, into, predicate, maxCount)) { + return; + } + } + } + } + } + } + + public void entitySectionLoad(final int chunkX, final int chunkZ, final ChunkEntitySlices slices) { + this.checkThread(chunkX, chunkZ, "Cannot load in entity section off-main"); + synchronized (this) { + final ChunkEntitySlices curr = this.getChunk(chunkX, chunkZ); + if (curr != null) { + this.removeChunk(chunkX, chunkZ); + + curr.mergeInto(slices); + + this.addChunk(chunkX, chunkZ, slices); + } else { + this.addChunk(chunkX, chunkZ, slices); + } + } + } + + public void entitySectionUnload(final int chunkX, final int chunkZ) { + this.checkThread(chunkX, chunkZ, "Cannot unload entity section off-main"); + this.removeChunk(chunkX, chunkZ); + } + + public ChunkEntitySlices getChunk(final int chunkX, final int chunkZ) { + final ChunkSlicesRegion region = this.getRegion(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT); + if (region == null) { + return null; + } + + return region.get((chunkX & REGION_MASK) | ((chunkZ & REGION_MASK) << REGION_SHIFT)); + } + + public ChunkEntitySlices getOrCreateChunk(final int chunkX, final int chunkZ) { + final ChunkSlicesRegion region = this.getRegion(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT); + ChunkEntitySlices ret; + if (region == null || (ret = region.get((chunkX & REGION_MASK) | ((chunkZ & REGION_MASK) << REGION_SHIFT))) == null) { + return this.createEntityChunk(chunkX, chunkZ, true); + } + + return ret; + } + + public ChunkSlicesRegion getRegion(final int regionX, final int regionZ) { + final long key = CoordinateUtils.getChunkKey(regionX, regionZ); + + return this.regions.get(key); + } + + protected synchronized void removeChunk(final int chunkX, final int chunkZ) { + final long key = CoordinateUtils.getChunkKey(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT); + final int relIndex = (chunkX & REGION_MASK) | ((chunkZ & REGION_MASK) << REGION_SHIFT); + + final ChunkSlicesRegion region = this.regions.get(key); + final int remaining = region.remove(relIndex); + + if (remaining == 0) { + this.regions.remove(key); + } + } + + public synchronized void addChunk(final int chunkX, final int chunkZ, final ChunkEntitySlices slices) { + final long key = CoordinateUtils.getChunkKey(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT); + final int relIndex = (chunkX & REGION_MASK) | ((chunkZ & REGION_MASK) << REGION_SHIFT); + + ChunkSlicesRegion region = this.regions.get(key); + if (region != null) { + region.add(relIndex, slices); + } else { + region = new ChunkSlicesRegion(); + region.add(relIndex, slices); + this.regions.put(key, region); + } + } + + public static final class ChunkSlicesRegion { + + private final ChunkEntitySlices[] slices = new ChunkEntitySlices[REGION_SIZE * REGION_SIZE]; + private int sliceCount; + + public ChunkEntitySlices get(final int index) { + return this.slices[index]; + } + + public int remove(final int index) { + final ChunkEntitySlices slices = this.slices[index]; + if (slices == null) { + throw new IllegalStateException(); + } + + this.slices[index] = null; + + return --this.sliceCount; + } + + public void add(final int index, final ChunkEntitySlices slices) { + final ChunkEntitySlices curr = this.slices[index]; + if (curr != null) { + throw new IllegalStateException(); + } + + this.slices[index] = slices; + + ++this.sliceCount; + } + } + + protected final class EntityCallback implements EntityInLevelCallback { + + public final Entity entity; + + public EntityCallback(final Entity entity) { + this.entity = entity; + } + + @Override + public void onMove() { + final Entity entity = this.entity; + final Visibility oldVisibility = getEntityStatus(entity); + final ChunkEntitySlices newSlices = EntityLookup.this.moveEntity(this.entity); + if (newSlices == null) { + // no new section, so didn't change sections + return; + } + final Visibility newVisibility = getEntityStatus(entity); + + EntityLookup.this.entityStatusChange(entity, newSlices, oldVisibility, newVisibility, true, false, false); + } + + @Override + public void onRemove(final Entity.RemovalReason reason) { + final Entity entity = this.entity; + EntityLookup.this.checkThread(entity, "Cannot remove entity off-main"); // Paper - rewrite chunk system + final Visibility tickingState = EntityLookup.getEntityStatus(entity); + + EntityLookup.this.removeEntity(entity); + + EntityLookup.this.entityStatusChange(entity, null, tickingState, Visibility.HIDDEN, false, false, reason.shouldDestroy()); + + this.entity.setLevelCallback(NoOpCallback.INSTANCE); + } + } + + protected static final class NoOpCallback implements EntityInLevelCallback { + + public static final NoOpCallback INSTANCE = new NoOpCallback(); + + @Override + public void onMove() {} + + @Override + public void onRemove(final Entity.RemovalReason reason) {} + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/client/ClientEntityLookup.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/client/ClientEntityLookup.java new file mode 100644 index 0000000000000000000000000000000000000000..fc4ea13aa4a21bd3d3f9377418a24b904868c401 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/client/ClientEntityLookup.java @@ -0,0 +1,81 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.entity.client; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup; +import it.unimi.dsi.fastutil.longs.LongOpenHashSet; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.entity.LevelCallback; + +public final class ClientEntityLookup extends EntityLookup { + + private final LongOpenHashSet tickingChunks = new LongOpenHashSet(); + + public ClientEntityLookup(final Level world, final LevelCallback worldCallback) { + super(world, worldCallback); + } + + @Override + protected Boolean blockTicketUpdates() { + // not present on client + return null; + } + + @Override + protected void setBlockTicketUpdates(Boolean value) { + // not present on client + } + + @Override + protected void checkThread(final int chunkX, final int chunkZ, final String reason) { + // TODO implement? + } + + @Override + protected void checkThread(final Entity entity, final String reason) { + // TODO implement? + } + + @Override + protected ChunkEntitySlices createEntityChunk(final int chunkX, final int chunkZ, final boolean transientChunk) { + final boolean ticking = this.tickingChunks.contains(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + final ChunkEntitySlices ret = new ChunkEntitySlices( + this.world, chunkX, chunkZ, + ticking ? FullChunkStatus.ENTITY_TICKING : FullChunkStatus.FULL, WorldUtil.getMinSection(this.world), WorldUtil.getMaxSection(this.world) + ); + + // note: not handled by superclass + this.addChunk(chunkX, chunkZ, ret); + + return ret; + } + + @Override + protected void onEmptySlices(final int chunkX, final int chunkZ) { + this.removeChunk(chunkX, chunkZ); + } + + public void markTicking(final long pos) { + if (this.tickingChunks.add(pos)) { + final int chunkX = CoordinateUtils.getChunkX(pos); + final int chunkZ = CoordinateUtils.getChunkZ(pos); + if (this.getChunk(chunkX, chunkZ) != null) { + this.chunkStatusChange(chunkX, chunkZ, FullChunkStatus.ENTITY_TICKING); + } + } + } + + public void markNonTicking(final long pos) { + if (this.tickingChunks.remove(pos)) { + final int chunkX = CoordinateUtils.getChunkX(pos); + final int chunkZ = CoordinateUtils.getChunkZ(pos); + if (this.getChunk(chunkX, chunkZ) != null) { + this.chunkStatusChange(chunkX, chunkZ, FullChunkStatus.FULL); + } + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/dfl/DefaultEntityLookup.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/dfl/DefaultEntityLookup.java new file mode 100644 index 0000000000000000000000000000000000000000..a9b0e8e90f433e141f36e47a9331cbdcb9ac9817 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/dfl/DefaultEntityLookup.java @@ -0,0 +1,72 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.entity.dfl; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.entity.LevelCallback; + +public final class DefaultEntityLookup extends EntityLookup { + public DefaultEntityLookup(final Level world) { + super(world, new DefaultLevelCallback()); + } + + @Override + protected Boolean blockTicketUpdates() { + return null; + } + + @Override + protected void setBlockTicketUpdates(final Boolean value) {} + + @Override + protected void checkThread(final int chunkX, final int chunkZ, final String reason) {} + + @Override + protected void checkThread(final Entity entity, final String reason) {} + + @Override + protected ChunkEntitySlices createEntityChunk(final int chunkX, final int chunkZ, final boolean transientChunk) { + final ChunkEntitySlices ret = new ChunkEntitySlices( + this.world, chunkX, chunkZ, FullChunkStatus.FULL, + WorldUtil.getMinSection(this.world), WorldUtil.getMaxSection(this.world) + ); + + // note: not handled by superclass + this.addChunk(chunkX, chunkZ, ret); + + return ret; + } + + @Override + protected void onEmptySlices(final int chunkX, final int chunkZ) { + this.removeChunk(chunkX, chunkZ); + } + + protected static final class DefaultLevelCallback implements LevelCallback { + + @Override + public void onCreated(final Entity entity) {} + + @Override + public void onDestroyed(final Entity entity) {} + + @Override + public void onTickingStart(final Entity entity) {} + + @Override + public void onTickingEnd(final Entity entity) {} + + @Override + public void onTrackingStart(final Entity entity) {} + + @Override + public void onTrackingEnd(final Entity entity) {} + + @Override + public void onSectionChange(final Entity entity) {} + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java new file mode 100644 index 0000000000000000000000000000000000000000..5b68279cae5952bdb7bdef3668980385a3a643e0 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java @@ -0,0 +1,50 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server; + +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.entity.LevelCallback; + +public final class ServerEntityLookup extends EntityLookup { + + private final ServerLevel serverWorld; + + public ServerEntityLookup(final ServerLevel world, final LevelCallback worldCallback) { + super(world, worldCallback); + this.serverWorld = world; + } + + @Override + protected Boolean blockTicketUpdates() { + return ((ChunkSystemServerLevel)this.serverWorld).moonrise$getChunkTaskScheduler().chunkHolderManager.blockTicketUpdates(); + } + + @Override + protected void setBlockTicketUpdates(final Boolean value) { + ((ChunkSystemServerLevel)this.serverWorld).moonrise$getChunkTaskScheduler().chunkHolderManager.unblockTicketUpdates(value); + } + + @Override + protected void checkThread(final int chunkX, final int chunkZ, final String reason) { + io.papermc.paper.util.TickThread.ensureTickThread(this.serverWorld, chunkX, chunkZ, reason); + } + + @Override + protected void checkThread(final Entity entity, final String reason) { + io.papermc.paper.util.TickThread.ensureTickThread(entity, reason); + } + + @Override + protected ChunkEntitySlices createEntityChunk(final int chunkX, final int chunkZ, final boolean transientChunk) { + // loadInEntityChunk will call addChunk for us + return ((ChunkSystemServerLevel)this.serverWorld).moonrise$getChunkTaskScheduler().chunkHolderManager + .getOrCreateEntityChunk(chunkX, chunkZ, transientChunk); + } + + @Override + protected void onEmptySlices(final int chunkX, final int chunkZ) { + // entity slices unloading is managed by ticket levels in chunk system + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiManager.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiManager.java new file mode 100644 index 0000000000000000000000000000000000000000..458d1fc5e1222912512e6c59b56f6fca347d9ee9 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiManager.java @@ -0,0 +1,17 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.poi; + +import ca.spottedleaf.moonrise.patches.chunk_system.level.storage.ChunkSystemSectionStorage; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.chunk.ChunkAccess; + +public interface ChunkSystemPoiManager extends ChunkSystemSectionStorage { + + public ServerLevel moonrise$getWorld(); + + public void moonrise$onUnload(final long coordinate); + + public void moonrise$loadInPoiChunk(final PoiChunk poiChunk); + + public void moonrise$checkConsistency(final ChunkAccess chunk); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiSection.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiSection.java new file mode 100644 index 0000000000000000000000000000000000000000..89b956b8fdf1a0d862a843104511005e2990a897 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/ChunkSystemPoiSection.java @@ -0,0 +1,12 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.poi; + +import net.minecraft.world.entity.ai.village.poi.PoiSection; +import java.util.Optional; + +public interface ChunkSystemPoiSection { + + public boolean moonrise$isEmpty(); + + public Optional moonrise$asOptional(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/PoiChunk.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/PoiChunk.java new file mode 100644 index 0000000000000000000000000000000000000000..cd1302a3aee6f543f39d71b91725128fa1aeddcc --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/poi/PoiChunk.java @@ -0,0 +1,211 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.poi; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import com.mojang.serialization.Codec; +import com.mojang.serialization.DataResult; +import net.minecraft.SharedConstants; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.nbt.NbtOps; +import net.minecraft.nbt.Tag; +import net.minecraft.resources.RegistryOps; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.entity.ai.village.poi.PoiManager; +import net.minecraft.world.entity.ai.village.poi.PoiSection; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.util.Optional; + +public final class PoiChunk { + + private static final Logger LOGGER = LoggerFactory.getLogger(PoiChunk.class); + + public final ServerLevel world; + public final int chunkX; + public final int chunkZ; + public final int minSection; + public final int maxSection; + + private final PoiSection[] sections; + + private boolean isDirty; + private boolean loaded; + + public PoiChunk(final ServerLevel world, final int chunkX, final int chunkZ, final int minSection, final int maxSection) { + this(world, chunkX, chunkZ, minSection, maxSection, new PoiSection[maxSection - minSection + 1]); + } + + public PoiChunk(final ServerLevel world, final int chunkX, final int chunkZ, final int minSection, final int maxSection, final PoiSection[] sections) { + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.minSection = minSection; + this.maxSection = maxSection; + this.sections = sections; + if (this.sections.length != (maxSection - minSection + 1)) { + throw new IllegalStateException("Incorrect length used, expected " + (maxSection - minSection + 1) + ", got " + this.sections.length); + } + } + + public void load() { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, this.chunkX, this.chunkZ, "Loading in poi chunk off-main"); + if (this.loaded) { + return; + } + this.loaded = true; + ((ChunkSystemPoiManager)this.world.getChunkSource().getPoiManager()).moonrise$loadInPoiChunk(this); + } + + public boolean isLoaded() { + return this.loaded; + } + + public boolean isEmpty() { + for (final PoiSection section : this.sections) { + if (section != null && !((ChunkSystemPoiSection)section).moonrise$isEmpty()) { + return false; + } + } + + return true; + } + + public PoiSection getOrCreateSection(final int chunkY) { + if (chunkY >= this.minSection && chunkY <= this.maxSection) { + final int idx = chunkY - this.minSection; + final PoiSection ret = this.sections[idx]; + if (ret != null) { + return ret; + } + + final PoiManager poiManager = this.world.getPoiManager(); + final long key = CoordinateUtils.getChunkSectionKey(this.chunkX, chunkY, this.chunkZ); + + return this.sections[idx] = new PoiSection(() -> { + poiManager.setDirty(key); + }); + } + throw new IllegalArgumentException("chunkY is out of bounds, chunkY: " + chunkY + " outside [" + this.minSection + "," + this.maxSection + "]"); + } + + public PoiSection getSection(final int chunkY) { + if (chunkY >= this.minSection && chunkY <= this.maxSection) { + return this.sections[chunkY - this.minSection]; + } + return null; + } + + public Optional getSectionForVanilla(final int chunkY) { + if (chunkY >= this.minSection && chunkY <= this.maxSection) { + final PoiSection ret = this.sections[chunkY - this.minSection]; + return ret == null ? Optional.empty() : ((ChunkSystemPoiSection)ret).moonrise$asOptional(); + } + return Optional.empty(); + } + + public boolean isDirty() { + return this.isDirty; + } + + public void setDirty(final boolean dirty) { + this.isDirty = dirty; + } + + // returns null if empty + public CompoundTag save() { + final RegistryOps registryOps = RegistryOps.create(NbtOps.INSTANCE, this.world.registryAccess()); + + final CompoundTag ret = new CompoundTag(); + final CompoundTag sections = new CompoundTag(); + ret.put("Sections", sections); + + ret.putInt("DataVersion", SharedConstants.getCurrentVersion().getDataVersion().getVersion()); + + final ServerLevel world = this.world; + final PoiManager poiManager = world.getPoiManager(); + final int chunkX = this.chunkX; + final int chunkZ = this.chunkZ; + + for (int sectionY = this.minSection; sectionY <= this.maxSection; ++sectionY) { + final PoiSection section = this.sections[sectionY - this.minSection]; + if (section == null || ((ChunkSystemPoiSection)section).moonrise$isEmpty()) { + continue; + } + + final long key = CoordinateUtils.getChunkSectionKey(chunkX, sectionY, chunkZ); + // codecs are honestly such a fucking disaster. What the fuck is this trash? + final Codec codec = PoiSection.codec(() -> { + poiManager.setDirty(key); + }); + + final DataResult serializedResult = codec.encodeStart(registryOps, section); + final int finalSectionY = sectionY; + final Tag serialized = serializedResult.resultOrPartial((final String description) -> { + LOGGER.error("Failed to serialize poi chunk for world: " + WorldUtil.getWorldName(world) + ", chunk: (" + chunkX + "," + finalSectionY + "," + chunkZ + "); description: " + description); + }).orElse(null); + if (serialized == null) { + // failed, should be logged from the resultOrPartial + continue; + } + + sections.put(Integer.toString(sectionY), serialized); + } + + return sections.isEmpty() ? null : ret; + } + + public static PoiChunk empty(final ServerLevel world, final int chunkX, final int chunkZ) { + final PoiChunk ret = new PoiChunk(world, chunkX, chunkZ, WorldUtil.getMinSection(world), WorldUtil.getMaxSection(world)); + ret.loaded = true; + return ret; + } + + public static PoiChunk parse(final ServerLevel world, final int chunkX, final int chunkZ, final CompoundTag data) { + final PoiChunk ret = empty(world, chunkX, chunkZ); + + final RegistryOps registryOps = RegistryOps.create(NbtOps.INSTANCE, world.registryAccess()); + + final CompoundTag sections = data.getCompound("Sections"); + + if (sections.isEmpty()) { + // nothing to parse + return ret; + } + + final PoiManager poiManager = world.getPoiManager(); + + boolean readAnything = false; + + for (int sectionY = ret.minSection; sectionY <= ret.maxSection; ++sectionY) { + final String key = Integer.toString(sectionY); + if (!sections.contains(key)) { + continue; + } + + final long coordinateKey = CoordinateUtils.getChunkSectionKey(chunkX, sectionY, chunkZ); + // codecs are honestly such a fucking disaster. What the fuck is this trash? + final Codec codec = PoiSection.codec(() -> { + poiManager.setDirty(coordinateKey); + }); + + final CompoundTag section = sections.getCompound(key); + final DataResult deserializeResult = codec.parse(registryOps, section); + final int finalSectionY = sectionY; + final PoiSection deserialized = deserializeResult.resultOrPartial((final String description) -> { + LOGGER.error("Failed to deserialize poi chunk for world: " + WorldUtil.getWorldName(world) + ", chunk: (" + chunkX + "," + finalSectionY + "," + chunkZ + "); description: " + description); + }).orElse(null); + + if (deserialized == null || ((ChunkSystemPoiSection)deserialized).moonrise$isEmpty()) { + // completely empty, no point in storing this + continue; + } + + readAnything = true; + ret.sections[sectionY - ret.minSection] = deserialized; + } + + ret.loaded = !readAnything; // Set loaded to false if we read anything to ensure proper callbacks to PoiManager are made on #load + + return ret; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/storage/ChunkSystemSectionStorage.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/storage/ChunkSystemSectionStorage.java new file mode 100644 index 0000000000000000000000000000000000000000..3f5edb756beb9c31b6f591a24b778d6ac2b0bf51 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/storage/ChunkSystemSectionStorage.java @@ -0,0 +1,21 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.level.storage; + +import com.mojang.serialization.Dynamic; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.nbt.Tag; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import java.io.IOException; +import java.util.Optional; +import java.util.concurrent.CompletableFuture; + +public interface ChunkSystemSectionStorage { + + public CompoundTag moonrise$read(final int chunkX, final int chunkZ) throws IOException; + + public void moonrise$write(final int chunkX, final int chunkZ, final CompoundTag data) throws IOException; + + public RegionFileStorage moonrise$getRegionStorage(); + + public void moonrise$close() throws IOException; + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/ChunkSystemServerPlayer.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/ChunkSystemServerPlayer.java new file mode 100644 index 0000000000000000000000000000000000000000..003a857e70ead858e8437e3c1bfaf22f4daba0df --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/ChunkSystemServerPlayer.java @@ -0,0 +1,15 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.player; + +public interface ChunkSystemServerPlayer { + + public boolean moonrise$isRealPlayer(); + + public void moonrise$setRealPlayer(final boolean real); + + public RegionizedPlayerChunkLoader.PlayerChunkLoaderData moonrise$getChunkLoader(); + + public void moonrise$setChunkLoader(final RegionizedPlayerChunkLoader.PlayerChunkLoaderData loader); + + public RegionizedPlayerChunkLoader.ViewDistanceHolder moonrise$getViewDistanceHolder(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java new file mode 100644 index 0000000000000000000000000000000000000000..dba09cb32844533c383635e7623f5180a468f636 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/player/RegionizedPlayerChunkLoader.java @@ -0,0 +1,1059 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.player; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.misc.AllocatingRateLimiter; +import ca.spottedleaf.moonrise.common.misc.SingleUserAreaMap; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.MoonriseCommon; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemLevelChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import ca.spottedleaf.moonrise.patches.chunk_system.util.ParallelSearchRadiusIteration; +import it.unimi.dsi.fastutil.longs.Long2ByteOpenHashMap; +import it.unimi.dsi.fastutil.longs.LongArrayList; +import it.unimi.dsi.fastutil.longs.LongComparator; +import it.unimi.dsi.fastutil.longs.LongHeapPriorityQueue; +import it.unimi.dsi.fastutil.longs.LongOpenHashSet; +import net.minecraft.network.protocol.Packet; +import net.minecraft.network.protocol.game.ClientboundForgetLevelChunkPacket; +import net.minecraft.network.protocol.game.ClientboundSetChunkCacheCenterPacket; +import net.minecraft.network.protocol.game.ClientboundSetChunkCacheRadiusPacket; +import net.minecraft.network.protocol.game.ClientboundSetSimulationDistancePacket; +import net.minecraft.server.level.ChunkTrackingView; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.server.level.ServerPlayer; +import net.minecraft.server.level.TicketType; +import net.minecraft.server.network.PlayerChunkSender; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.GameRules; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.levelgen.BelowZeroRetrogen; +import java.lang.invoke.VarHandle; +import java.util.ArrayDeque; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.function.Function; + +public final class RegionizedPlayerChunkLoader { + + public static final TicketType PLAYER_TICKET = TicketType.create("chunk_system:player_ticket", Long::compareTo); + public static final TicketType PLAYER_TICKET_DELAYED = TicketType.create("chunk_system:player_ticket_delayed", Long::compareTo, 5 * 20); + + public static final int MIN_VIEW_DISTANCE = 2; + public static final int MAX_VIEW_DISTANCE = 32; + + public static final int GENERATED_TICKET_LEVEL = ChunkHolderManager.FULL_LOADED_TICKET_LEVEL; + public static final int LOADED_TICKET_LEVEL = ChunkTaskScheduler.getTicketLevel(ChunkStatus.EMPTY); + public static final int TICK_TICKET_LEVEL = ChunkHolderManager.ENTITY_TICKING_TICKET_LEVEL; + + public static class ViewDistanceHolder { + + private volatile ViewDistances viewDistances; + private static final VarHandle VIEW_DISTANCES_HANDLE = ConcurrentUtil.getVarHandle(ViewDistanceHolder.class, "viewDistances", ViewDistances.class); + + public ViewDistanceHolder() { + VIEW_DISTANCES_HANDLE.setVolatile(this, new ViewDistances(-1, -1, -1)); + } + + public ViewDistances getViewDistances() { + return (ViewDistances)VIEW_DISTANCES_HANDLE.getVolatile(this); + } + + public ViewDistances compareAndExchangeViewDistance(final ViewDistances expect, final ViewDistances update) { + return (ViewDistances)VIEW_DISTANCES_HANDLE.compareAndExchange(this, expect, update); + } + + public void updateViewDistance(final Function update) { + int failures = 0; + for (ViewDistances curr = this.getViewDistances();;) { + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + + if (curr == (curr = this.compareAndExchangeViewDistance(curr, update.apply(curr)))) { + return; + } + ++failures; + } + } + + public void setTickViewDistance(final int distance) { + this.updateViewDistance((final ViewDistances param) -> { + return param.setTickViewDistance(distance); + }); + } + + public void setLoadViewDistance(final int distance) { + this.updateViewDistance((final ViewDistances param) -> { + return param.setLoadViewDistance(distance); + }); + } + + public void setSendViewDistance(final int distance) { + this.updateViewDistance((final ViewDistances param) -> { + return param.setTickViewDistance(distance); + }); + } + } + + public static final record ViewDistances( + int tickViewDistance, + int loadViewDistance, + int sendViewDistance + ) { + public ViewDistances setTickViewDistance(final int distance) { + return new ViewDistances(distance, this.loadViewDistance, this.sendViewDistance); + } + + public ViewDistances setLoadViewDistance(final int distance) { + return new ViewDistances(this.tickViewDistance, distance, this.sendViewDistance); + } + + public ViewDistances setSendViewDistance(final int distance) { + return new ViewDistances(this.tickViewDistance, this.loadViewDistance, distance); + } + } + + public static int getAPITickViewDistance(final ServerPlayer player) { + final ServerLevel level = player.serverLevel(); + final PlayerChunkLoaderData data = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (data == null) { + return ((ChunkSystemServerLevel)level).moonrise$getPlayerChunkLoader().getAPITickDistance(); + } + return data.lastTickDistance; + } + + public static int getAPIViewDistance(final ServerPlayer player) { + final ServerLevel level = player.serverLevel(); + final PlayerChunkLoaderData data = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (data == null) { + return ((ChunkSystemServerLevel)level).moonrise$getPlayerChunkLoader().getAPIViewDistance(); + } + // view distance = load distance + 1 + return data.lastLoadDistance - 1; + } + + public static int getLoadViewDistance(final ServerPlayer player) { + final ServerLevel level = player.serverLevel(); + final PlayerChunkLoaderData data = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (data == null) { + return ((ChunkSystemServerLevel)level).moonrise$getPlayerChunkLoader().getAPIViewDistance(); + } + // view distance = load distance + 1 + return data.lastLoadDistance - 1; + } + + public static int getAPISendViewDistance(final ServerPlayer player) { + final ServerLevel level = player.serverLevel(); + final PlayerChunkLoaderData data = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (data == null) { + return ((ChunkSystemServerLevel)level).moonrise$getPlayerChunkLoader().getAPISendViewDistance(); + } + return data.lastSendDistance; + } + + private final ServerLevel world; + + public RegionizedPlayerChunkLoader(final ServerLevel world) { + this.world = world; + } + + public void addPlayer(final ServerPlayer player) { + io.papermc.paper.util.TickThread.ensureTickThread(player, "Cannot add player to player chunk loader async"); + if (!((ChunkSystemServerPlayer)player).moonrise$isRealPlayer()) { + return; + } + + if (((ChunkSystemServerPlayer)player).moonrise$getChunkLoader() != null) { + throw new IllegalStateException("Player is already added to player chunk loader"); + } + + final PlayerChunkLoaderData loader = new PlayerChunkLoaderData(this.world, player); + + ((ChunkSystemServerPlayer)player).moonrise$setChunkLoader(loader); + loader.add(); + } + + public void updatePlayer(final ServerPlayer player) { + final PlayerChunkLoaderData loader = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (loader != null) { + loader.update(); + } + } + + public void removePlayer(final ServerPlayer player) { + io.papermc.paper.util.TickThread.ensureTickThread(player, "Cannot remove player from player chunk loader async"); + if (!((ChunkSystemServerPlayer)player).moonrise$isRealPlayer()) { + return; + } + + final PlayerChunkLoaderData loader = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + + if (loader == null) { + return; + } + + loader.remove(); + ((ChunkSystemServerPlayer)player).moonrise$setChunkLoader(null); + } + + public void setSendDistance(final int distance) { + ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().setSendViewDistance(distance); + } + + public void setLoadDistance(final int distance) { + ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().setLoadViewDistance(distance); + } + + public void setTickDistance(final int distance) { + ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().setTickViewDistance(distance); + } + + // Note: follow the player chunk loader so everything stays consistent... + public int getAPITickDistance() { + final ViewDistances distances = ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().getViewDistances(); + final int tickViewDistance = PlayerChunkLoaderData.getTickDistance( + -1, distances.tickViewDistance, + -1, distances.loadViewDistance + ); + return tickViewDistance; + } + + public int getAPIViewDistance() { + final ViewDistances distances = ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().getViewDistances(); + final int tickViewDistance = PlayerChunkLoaderData.getTickDistance( + -1, distances.tickViewDistance, + -1, distances.loadViewDistance + ); + final int loadDistance = PlayerChunkLoaderData.getLoadViewDistance(tickViewDistance, -1, distances.loadViewDistance); + + // loadDistance = api view distance + 1 + return loadDistance - 1; + } + + public int getAPISendViewDistance() { + final ViewDistances distances = ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().getViewDistances(); + final int tickViewDistance = PlayerChunkLoaderData.getTickDistance( + -1, distances.tickViewDistance, + -1, distances.loadViewDistance + ); + final int loadDistance = PlayerChunkLoaderData.getLoadViewDistance(tickViewDistance, -1, distances.loadViewDistance); + final int sendViewDistance = PlayerChunkLoaderData.getSendViewDistance( + loadDistance, -1, -1, distances.sendViewDistance + ); + + return sendViewDistance; + } + + public boolean isChunkSent(final ServerPlayer player, final int chunkX, final int chunkZ, final boolean borderOnly) { + return borderOnly ? this.isChunkSentBorderOnly(player, chunkX, chunkZ) : this.isChunkSent(player, chunkX, chunkZ); + } + + public boolean isChunkSent(final ServerPlayer player, final int chunkX, final int chunkZ) { + final PlayerChunkLoaderData loader = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (loader == null) { + return false; + } + + return loader.sentChunks.contains(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + } + + public boolean isChunkSentBorderOnly(final ServerPlayer player, final int chunkX, final int chunkZ) { + final PlayerChunkLoaderData loader = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (loader == null) { + return false; + } + + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + if (!loader.sentChunks.contains(CoordinateUtils.getChunkKey(dx + chunkX, dz + chunkZ))) { + return true; + } + } + } + + return false; + } + + public void tick() { + io.papermc.paper.util.TickThread.ensureTickThread("Cannot tick player chunk loader async"); + long currTime = System.nanoTime(); + for (final ServerPlayer player : new java.util.ArrayList<>(this.world.players())) { + final PlayerChunkLoaderData loader = ((ChunkSystemServerPlayer)player).moonrise$getChunkLoader(); + if (loader == null || loader.removed || loader.world != this.world) { + // not our problem anymore + continue; + } + loader.update(); // can't invoke plugin logic + loader.updateQueues(currTime); + } + } + + public static final class PlayerChunkLoaderData { + + private static final AtomicLong ID_GENERATOR = new AtomicLong(); + private final long id = ID_GENERATOR.incrementAndGet(); + private final Long idBoxed = Long.valueOf(this.id); + + private static final long MAX_RATE = 10_000L; + + private final ServerPlayer player; + private final ServerLevel world; + + private int lastChunkX = Integer.MIN_VALUE; + private int lastChunkZ = Integer.MIN_VALUE; + + private int lastSendDistance = Integer.MIN_VALUE; + private int lastLoadDistance = Integer.MIN_VALUE; + private int lastTickDistance = Integer.MIN_VALUE; + + private int lastSentChunkCenterX = Integer.MIN_VALUE; + private int lastSentChunkCenterZ = Integer.MIN_VALUE; + + private int lastSentChunkRadius = Integer.MIN_VALUE; + private int lastSentSimulationDistance = Integer.MIN_VALUE; + + private boolean canGenerateChunks = true; + + private final ArrayDeque> delayedTicketOps = new ArrayDeque<>(); + private final LongOpenHashSet sentChunks = new LongOpenHashSet(); + + private static final byte CHUNK_TICKET_STAGE_NONE = 0; + private static final byte CHUNK_TICKET_STAGE_LOADING = 1; + private static final byte CHUNK_TICKET_STAGE_LOADED = 2; + private static final byte CHUNK_TICKET_STAGE_GENERATING = 3; + private static final byte CHUNK_TICKET_STAGE_GENERATED = 4; + private static final byte CHUNK_TICKET_STAGE_TICK = 5; + private static final int[] TICKET_STAGE_TO_LEVEL = new int[] { + ChunkHolderManager.MAX_TICKET_LEVEL + 1, + LOADED_TICKET_LEVEL, + LOADED_TICKET_LEVEL, + GENERATED_TICKET_LEVEL, + GENERATED_TICKET_LEVEL, + TICK_TICKET_LEVEL + }; + private final Long2ByteOpenHashMap chunkTicketStage = new Long2ByteOpenHashMap(); + { + this.chunkTicketStage.defaultReturnValue(CHUNK_TICKET_STAGE_NONE); + } + + // rate limiting + private static final long ALLOCATION_GRANULARITY = TimeUnit.SECONDS.toNanos(1L); + private final AllocatingRateLimiter chunkSendLimiter = new AllocatingRateLimiter(ALLOCATION_GRANULARITY); + private final AllocatingRateLimiter chunkLoadTicketLimiter = new AllocatingRateLimiter(ALLOCATION_GRANULARITY); + private final AllocatingRateLimiter chunkGenerateTicketLimiter = new AllocatingRateLimiter(ALLOCATION_GRANULARITY); + + // queues + private final LongComparator CLOSEST_MANHATTAN_DIST = (final long c1, final long c2) -> { + final int c1x = CoordinateUtils.getChunkX(c1); + final int c1z = CoordinateUtils.getChunkZ(c1); + + final int c2x = CoordinateUtils.getChunkX(c2); + final int c2z = CoordinateUtils.getChunkZ(c2); + + final int centerX = PlayerChunkLoaderData.this.lastChunkX; + final int centerZ = PlayerChunkLoaderData.this.lastChunkZ; + + return Integer.compare( + Math.abs(c1x - centerX) + Math.abs(c1z - centerZ), + Math.abs(c2x - centerX) + Math.abs(c2z - centerZ) + ); + }; + private final LongHeapPriorityQueue sendQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + private final LongHeapPriorityQueue tickingQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + private final LongHeapPriorityQueue generatingQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + private final LongHeapPriorityQueue genQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + private final LongHeapPriorityQueue loadingQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + private final LongHeapPriorityQueue loadQueue = new LongHeapPriorityQueue(CLOSEST_MANHATTAN_DIST); + + private volatile boolean removed; + + public PlayerChunkLoaderData(final ServerLevel world, final ServerPlayer player) { + this.world = world; + this.player = player; + } + + private void flushDelayedTicketOps() { + if (this.delayedTicketOps.isEmpty()) { + return; + } + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager.performTicketUpdates(this.delayedTicketOps); + this.delayedTicketOps.clear(); + } + + private void pushDelayedTicketOp(final ChunkHolderManager.TicketOperation op) { + this.delayedTicketOps.addLast(op); + } + + private void sendChunk(final int chunkX, final int chunkZ) { + if (this.sentChunks.add(CoordinateUtils.getChunkKey(chunkX, chunkZ))) { + ((ChunkSystemChunkHolder)((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager + .getChunkHolder(chunkX, chunkZ).vanillaChunkHolder).moonrise$addReceivedChunk(this.player); + PlayerChunkSender.sendChunk(this.player.connection, this.world, ((ChunkSystemLevel)this.world).moonrise$getFullChunkIfLoaded(chunkX, chunkZ)); + return; + } + throw new IllegalStateException(); + } + + private void sendUnloadChunk(final int chunkX, final int chunkZ) { + if (!this.sentChunks.remove(CoordinateUtils.getChunkKey(chunkX, chunkZ))) { + return; + } + this.sendUnloadChunkRaw(chunkX, chunkZ); + } + + private void sendUnloadChunkRaw(final int chunkX, final int chunkZ) { + // Note: Check PlayerChunkSender#dropChunk for other logic + // Note: drop isAlive() check so that chunks properly unload client-side when the player dies + ((ChunkSystemChunkHolder)((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager + .getChunkHolder(chunkX, chunkZ).vanillaChunkHolder).moonrise$removeReceivedChunk(this.player); + this.player.connection.send(new ClientboundForgetLevelChunkPacket(new ChunkPos(chunkX, chunkZ))); + } + + private final SingleUserAreaMap broadcastMap = new SingleUserAreaMap<>(this) { + @Override + protected void addCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + // do nothing, we only care about remove + } + + @Override + protected void removeCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + parameter.sendUnloadChunk(chunkX, chunkZ); + } + }; + private final SingleUserAreaMap loadTicketCleanup = new SingleUserAreaMap<>(this) { + @Override + protected void addCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + // do nothing, we only care about remove + } + + @Override + protected void removeCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + final long chunk = CoordinateUtils.getChunkKey(chunkX, chunkZ); + final byte ticketStage = parameter.chunkTicketStage.remove(chunk); + final int level = TICKET_STAGE_TO_LEVEL[ticketStage]; + if (level > ChunkHolderManager.MAX_TICKET_LEVEL) { + return; + } + + parameter.pushDelayedTicketOp(ChunkHolderManager.TicketOperation.addAndRemove( + chunk, + PLAYER_TICKET_DELAYED, level, parameter.idBoxed, + PLAYER_TICKET, level, parameter.idBoxed + )); + } + }; + private final SingleUserAreaMap tickMap = new SingleUserAreaMap<>(this) { + @Override + protected void addCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + // do nothing, we will detect ticking chunks when we try to load them + } + + @Override + protected void removeCallback(final PlayerChunkLoaderData parameter, final int chunkX, final int chunkZ) { + final long chunk = CoordinateUtils.getChunkKey(chunkX, chunkZ); + // note: by the time this is called, the tick cleanup should have ran - so, if the chunk is at + // the tick stage it was deemed in range for loading. Thus, we need to move it to generated + if (!parameter.chunkTicketStage.replace(chunk, CHUNK_TICKET_STAGE_TICK, CHUNK_TICKET_STAGE_GENERATED)) { + return; + } + + // Since we are possibly downgrading the ticket level, we add the delayed unload ticket so that + // the level is kept for a short period of time + parameter.pushDelayedTicketOp(ChunkHolderManager.TicketOperation.addAndRemove( + chunk, + PLAYER_TICKET_DELAYED, TICK_TICKET_LEVEL, parameter.idBoxed, + PLAYER_TICKET, TICK_TICKET_LEVEL, parameter.idBoxed + )); + // keep chunk at new generated level + parameter.pushDelayedTicketOp(ChunkHolderManager.TicketOperation.addOp( + chunk, PLAYER_TICKET, GENERATED_TICKET_LEVEL, parameter.idBoxed + )); + } + }; + + private static boolean wantChunkLoaded(final int centerX, final int centerZ, final int chunkX, final int chunkZ, + final int sendRadius) { + // expect sendRadius to be = 1 + target viewable radius + return ChunkTrackingView.isWithinDistance(centerX, centerZ, sendRadius, chunkX, chunkZ, true); + } + + private static int getClientViewDistance(final ServerPlayer player) { + final Integer vd = player.requestedViewDistance(); + return vd == null ? -1 : Math.max(0, vd.intValue()); + } + + private static int getTickDistance(final int playerTickViewDistance, final int worldTickViewDistance, + final int playerLoadViewDistance, final int worldLoadViewDistance) { + return Math.min( + playerTickViewDistance < 0 ? worldTickViewDistance : playerTickViewDistance, + playerLoadViewDistance < 0 ? worldLoadViewDistance : playerLoadViewDistance + ); + } + + private static int getLoadViewDistance(final int tickViewDistance, final int playerLoadViewDistance, + final int worldLoadViewDistance) { + return Math.max(tickViewDistance + 1, playerLoadViewDistance < 0 ? worldLoadViewDistance : playerLoadViewDistance); + } + + private static int getSendViewDistance(final int loadViewDistance, final int clientViewDistance, + final int playerSendViewDistance, final int worldSendViewDistance) { + return Math.min( + loadViewDistance - 1, + playerSendViewDistance < 0 ? (!io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingAdvanced.autoConfigSendDistance || clientViewDistance < 0 ? (worldSendViewDistance < 0 ? (loadViewDistance - 1) : worldSendViewDistance) : clientViewDistance + 1) : playerSendViewDistance + ); + } + + private Packet updateClientChunkRadius(final int radius) { + this.lastSentChunkRadius = radius; + return new ClientboundSetChunkCacheRadiusPacket(radius); + } + + private Packet updateClientSimulationDistance(final int distance) { + this.lastSentSimulationDistance = distance; + return new ClientboundSetSimulationDistancePacket(distance); + } + + private Packet updateClientChunkCenter(final int chunkX, final int chunkZ) { + this.lastSentChunkCenterX = chunkX; + this.lastSentChunkCenterZ = chunkZ; + return new ClientboundSetChunkCacheCenterPacket(chunkX, chunkZ); + } + + private boolean canPlayerGenerateChunks() { + return !this.player.isSpectator() || this.world.getGameRules().getBoolean(GameRules.RULE_SPECTATORSGENERATECHUNKS); + } + + private double getMaxChunkLoadRate() { + final double configRate = io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingBasic.playerMaxChunkLoadRate; + + return configRate <= 0.0 || configRate > (double)MAX_RATE ? (double)MAX_RATE : Math.max(1.0, configRate); + } + + private double getMaxChunkGenRate() { + final double configRate = io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingBasic.playerMaxChunkGenerateRate; + + return configRate <= 0.0 || configRate > (double)MAX_RATE ? (double)MAX_RATE : Math.max(1.0, configRate); + } + + private double getMaxChunkSendRate() { + final double configRate = io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingBasic.playerMaxChunkSendRate; + + return configRate <= 0.0 || configRate > (double)MAX_RATE ? (double)MAX_RATE : Math.max(1.0, configRate); + } + + private long getMaxChunkLoads() { + final long radiusChunks = (2L * this.lastLoadDistance + 1L) * (2L * this.lastLoadDistance + 1L); + long configLimit = io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingAdvanced.playerMaxConcurrentChunkLoads; + if (configLimit == 0L) { + // by default, only allow 1/5th of the chunks in the view distance to be concurrently active + configLimit = Math.max(5L, radiusChunks / 5L); + } else if (configLimit < 0L) { + configLimit = Integer.MAX_VALUE; + } // else: use the value configured + configLimit = configLimit - this.loadingQueue.size(); + + return configLimit; + } + + private long getMaxChunkGenerates() { + final long radiusChunks = (2L * this.lastLoadDistance + 1L) * (2L * this.lastLoadDistance + 1L); + long configLimit = io.papermc.paper.configuration.GlobalConfiguration.get().chunkLoadingAdvanced.playerMaxConcurrentChunkGenerates; + if (configLimit == 0L) { + // by default, only allow 1/5th of the chunks in the view distance to be concurrently active + configLimit = Math.max(5L, radiusChunks / 5L); + } else if (configLimit < 0L) { + configLimit = Integer.MAX_VALUE; + } // else: use the value configured + configLimit = configLimit - this.generatingQueue.size(); + + return configLimit; + } + + private boolean wantChunkSent(final int chunkX, final int chunkZ) { + final int dx = this.lastChunkX - chunkX; + final int dz = this.lastChunkZ - chunkZ; + return (Math.max(Math.abs(dx), Math.abs(dz)) <= (this.lastSendDistance + 1)) && wantChunkLoaded( + this.lastChunkX, this.lastChunkZ, chunkX, chunkZ, this.lastSendDistance + ); + } + + private boolean wantChunkTicked(final int chunkX, final int chunkZ) { + final int dx = this.lastChunkX - chunkX; + final int dz = this.lastChunkZ - chunkZ; + return Math.max(Math.abs(dx), Math.abs(dz)) <= this.lastTickDistance; + } + + private boolean areNeighboursGenerated(final int chunkX, final int chunkZ, final int radius) { + for (int dz = -radius; dz <= radius; ++dz) { + for (int dx = -radius; dx <= radius; ++dx) { + if ((dx | dz) == 0) { + continue; + } + + final long neighbour = CoordinateUtils.getChunkKey(dx + chunkX, dz + chunkZ); + final byte stage = this.chunkTicketStage.get(neighbour); + + if (stage != CHUNK_TICKET_STAGE_GENERATED && stage != CHUNK_TICKET_STAGE_TICK) { + return false; + } + } + } + + return true; + } + + void updateQueues(final long time) { + io.papermc.paper.util.TickThread.ensureTickThread(this.player, "Cannot tick player chunk loader async"); + if (this.removed) { + throw new IllegalStateException("Ticking removed player chunk loader"); + } + // update rate limits + final double loadRate = this.getMaxChunkLoadRate(); + final double genRate = this.getMaxChunkGenRate(); + final double sendRate = this.getMaxChunkSendRate(); + + this.chunkLoadTicketLimiter.tickAllocation(time, loadRate, loadRate); + this.chunkGenerateTicketLimiter.tickAllocation(time, genRate, genRate); + this.chunkSendLimiter.tickAllocation(time, sendRate, sendRate); + + // try to progress chunk loads + while (!this.loadingQueue.isEmpty()) { + final long pendingLoadChunk = this.loadingQueue.firstLong(); + final int pendingChunkX = CoordinateUtils.getChunkX(pendingLoadChunk); + final int pendingChunkZ = CoordinateUtils.getChunkZ(pendingLoadChunk); + final ChunkAccess pending = ((ChunkSystemLevel)this.world).moonrise$getAnyChunkIfLoaded(pendingChunkX, pendingChunkZ); + if (pending == null) { + // nothing to do here + break; + } + // chunk has loaded, so we can take it out of the queue + this.loadingQueue.dequeueLong(); + + // try to move to generate queue + final byte prev = this.chunkTicketStage.put(pendingLoadChunk, CHUNK_TICKET_STAGE_LOADED); + if (prev != CHUNK_TICKET_STAGE_LOADING) { + throw new IllegalStateException("Previous state should be " + CHUNK_TICKET_STAGE_LOADING + ", not " + prev); + } + + if (this.canGenerateChunks || this.isLoadedChunkGeneratable(pending)) { + this.genQueue.enqueue(pendingLoadChunk); + } // else: don't want to generate, so just leave it loaded + } + + // try to push more chunk loads + final long maxLoads = Math.max(0L, Math.min(MAX_RATE, Math.min(this.loadQueue.size(), this.getMaxChunkLoads()))); + final int maxLoadsThisTick = (int)this.chunkLoadTicketLimiter.takeAllocation(time, loadRate, maxLoads); + if (maxLoadsThisTick > 0) { + final LongArrayList chunks = new LongArrayList(maxLoadsThisTick); + for (int i = 0; i < maxLoadsThisTick; ++i) { + final long chunk = this.loadQueue.dequeueLong(); + final byte prev = this.chunkTicketStage.put(chunk, CHUNK_TICKET_STAGE_LOADING); + if (prev != CHUNK_TICKET_STAGE_NONE) { + throw new IllegalStateException("Previous state should be " + CHUNK_TICKET_STAGE_NONE + ", not " + prev); + } + this.pushDelayedTicketOp( + ChunkHolderManager.TicketOperation.addOp( + chunk, + PLAYER_TICKET, LOADED_TICKET_LEVEL, this.idBoxed + ) + ); + chunks.add(chunk); + this.loadingQueue.enqueue(chunk); + } + + // here we need to flush tickets, as scheduleChunkLoad requires tickets to be propagated with addTicket = false + this.flushDelayedTicketOps(); + // we only need to call scheduleChunkLoad because the loaded ticket level is not enough to start the chunk + // load - only generate ticket levels start anything, but they start generation... + // propagate levels + // Note: this CAN call plugin logic, so it is VITAL that our bookkeeping logic is completely done by the time this is invoked + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager.processTicketUpdates(); + + if (this.removed) { + // process ticket updates may invoke plugin logic, which may remove this player + return; + } + + for (int i = 0; i < maxLoadsThisTick; ++i) { + final long queuedLoadChunk = chunks.getLong(i); + final int queuedChunkX = CoordinateUtils.getChunkX(queuedLoadChunk); + final int queuedChunkZ = CoordinateUtils.getChunkZ(queuedLoadChunk); + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().scheduleChunkLoad( + queuedChunkX, queuedChunkZ, ChunkStatus.EMPTY, false, PrioritisedExecutor.Priority.NORMAL, null + ); + if (this.removed) { + return; + } + } + } + + // try to progress chunk generations + while (!this.generatingQueue.isEmpty()) { + final long pendingGenChunk = this.generatingQueue.firstLong(); + final int pendingChunkX = CoordinateUtils.getChunkX(pendingGenChunk); + final int pendingChunkZ = CoordinateUtils.getChunkZ(pendingGenChunk); + final LevelChunk pending = ((ChunkSystemLevel)this.world).moonrise$getFullChunkIfLoaded(pendingChunkX, pendingChunkZ); + if (pending == null) { + // nothing to do here + break; + } + + // chunk has generated, so we can take it out of queue + this.generatingQueue.dequeueLong(); + + final byte prev = this.chunkTicketStage.put(pendingGenChunk, CHUNK_TICKET_STAGE_GENERATED); + if (prev != CHUNK_TICKET_STAGE_GENERATING) { + throw new IllegalStateException("Previous state should be " + CHUNK_TICKET_STAGE_GENERATING + ", not " + prev); + } + + // try to move to send queue + if (this.wantChunkSent(pendingChunkX, pendingChunkZ)) { + this.sendQueue.enqueue(pendingGenChunk); + } + // try to move to tick queue + if (this.wantChunkTicked(pendingChunkX, pendingChunkZ)) { + this.tickingQueue.enqueue(pendingGenChunk); + } + } + + // try to push more chunk generations + final long maxGens = Math.max(0L, Math.min(MAX_RATE, Math.min(this.genQueue.size(), this.getMaxChunkGenerates()))); + // preview the allocations, as we may not actually utilise all of them + final long maxGensThisTick = this.chunkGenerateTicketLimiter.previewAllocation(time, genRate, maxGens); + long ratedGensThisTick = 0L; + while (!this.genQueue.isEmpty()) { + final long chunkKey = this.genQueue.firstLong(); + final int chunkX = CoordinateUtils.getChunkX(chunkKey); + final int chunkZ = CoordinateUtils.getChunkZ(chunkKey); + final ChunkAccess chunk = ((ChunkSystemLevel)this.world).moonrise$getAnyChunkIfLoaded(chunkX, chunkZ); + if (chunk.getPersistedStatus() != ChunkStatus.FULL) { + // only rate limit actual generations + if ((ratedGensThisTick + 1L) > maxGensThisTick) { + break; + } + ++ratedGensThisTick; + } + + this.genQueue.dequeueLong(); + + final byte prev = this.chunkTicketStage.put(chunkKey, CHUNK_TICKET_STAGE_GENERATING); + if (prev != CHUNK_TICKET_STAGE_LOADED) { + throw new IllegalStateException("Previous state should be " + CHUNK_TICKET_STAGE_LOADED + ", not " + prev); + } + this.pushDelayedTicketOp( + ChunkHolderManager.TicketOperation.addAndRemove( + chunkKey, + PLAYER_TICKET, GENERATED_TICKET_LEVEL, this.idBoxed, + PLAYER_TICKET, LOADED_TICKET_LEVEL, this.idBoxed + ) + ); + this.generatingQueue.enqueue(chunkKey); + } + // take the allocations we actually used + this.chunkGenerateTicketLimiter.takeAllocation(time, genRate, ratedGensThisTick); + + // try to pull ticking chunks + while (!this.tickingQueue.isEmpty()) { + final long pendingTicking = this.tickingQueue.firstLong(); + final int pendingChunkX = CoordinateUtils.getChunkX(pendingTicking); + final int pendingChunkZ = CoordinateUtils.getChunkZ(pendingTicking); + + if (!this.areNeighboursGenerated(pendingChunkX, pendingChunkZ, + ChunkHolderManager.FULL_LOADED_TICKET_LEVEL - ChunkHolderManager.ENTITY_TICKING_TICKET_LEVEL)) { + break; + } + + // only gets here if all neighbours were marked as generated or ticking themselves + this.tickingQueue.dequeueLong(); + this.pushDelayedTicketOp( + ChunkHolderManager.TicketOperation.addAndRemove( + pendingTicking, + PLAYER_TICKET, TICK_TICKET_LEVEL, this.idBoxed, + PLAYER_TICKET, GENERATED_TICKET_LEVEL, this.idBoxed + ) + ); + // note: there is no queue to add after ticking + final byte prev = this.chunkTicketStage.put(pendingTicking, CHUNK_TICKET_STAGE_TICK); + if (prev != CHUNK_TICKET_STAGE_GENERATED) { + throw new IllegalStateException("Previous state should be " + CHUNK_TICKET_STAGE_GENERATED + ", not " + prev); + } + } + + // try to pull sending chunks + final long maxSends = Math.max(0L, Math.min(MAX_RATE, Integer.MAX_VALUE)); // note: no logic to track concurrent sends + final int maxSendsThisTick = Math.min((int)this.chunkSendLimiter.takeAllocation(time, sendRate, maxSends), this.sendQueue.size()); + // we do not return sends that we took from the allocation back because we want to limit the max send rate, not target it + for (int i = 0; i < maxSendsThisTick; ++i) { + final long pendingSend = this.sendQueue.firstLong(); + final int pendingSendX = CoordinateUtils.getChunkX(pendingSend); + final int pendingSendZ = CoordinateUtils.getChunkZ(pendingSend); + final LevelChunk chunk = ((ChunkSystemLevel)this.world).moonrise$getFullChunkIfLoaded(pendingSendX, pendingSendZ); + if (!this.areNeighboursGenerated(pendingSendX, pendingSendZ, 1) || !io.papermc.paper.util.TickThread.isTickThreadFor(this.world, pendingSendX, pendingSendZ)) { + // nothing to do + // the target chunk may not be owned by this region, but this should be resolved in the future + break; + } + if (!((ChunkSystemLevelChunk)chunk).moonrise$isPostProcessingDone()) { + // not yet post-processed, need to do this so that tile entities can properly be sent to clients + chunk.postProcessGeneration(); + // check if there was any recursive action + if (this.removed || this.sendQueue.isEmpty() || this.sendQueue.firstLong() != pendingSend) { + return; + } // else: good to dequeue and send, fall through + } + this.sendQueue.dequeueLong(); + + this.sendChunk(pendingSendX, pendingSendZ); + + if (this.removed) { + // sendChunk may invoke plugin logic + return; + } + } + + this.flushDelayedTicketOps(); + } + + void add() { + io.papermc.paper.util.TickThread.ensureTickThread(this.player, "Cannot add player asynchronously"); + if (this.removed) { + throw new IllegalStateException("Adding removed player chunk loader"); + } + final ViewDistances playerDistances = ((ChunkSystemServerPlayer)this.player).moonrise$getViewDistanceHolder().getViewDistances(); + final ViewDistances worldDistances = ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().getViewDistances(); + final int chunkX = this.player.chunkPosition().x; + final int chunkZ = this.player.chunkPosition().z; + + final int tickViewDistance = getTickDistance( + playerDistances.tickViewDistance, worldDistances.tickViewDistance, + playerDistances.loadViewDistance, worldDistances.loadViewDistance + ); + // load view cannot be less-than tick view + 1 + final int loadViewDistance = getLoadViewDistance(tickViewDistance, playerDistances.loadViewDistance, worldDistances.loadViewDistance); + // send view cannot be greater-than load view + final int clientViewDistance = getClientViewDistance(this.player); + final int sendViewDistance = getSendViewDistance(loadViewDistance, clientViewDistance, playerDistances.sendViewDistance, worldDistances.sendViewDistance); + + // TODO check PlayerList diff in paper chunk system patch + // send view distances + this.player.connection.send(this.updateClientChunkRadius(sendViewDistance)); + this.player.connection.send(this.updateClientSimulationDistance(tickViewDistance)); + + // add to distance maps + this.broadcastMap.add(chunkX, chunkZ, sendViewDistance + 1); + this.loadTicketCleanup.add(chunkX, chunkZ, loadViewDistance + 1); + this.tickMap.add(chunkX, chunkZ, tickViewDistance); + + // update chunk center + this.player.connection.send(this.updateClientChunkCenter(chunkX, chunkZ)); + + // reset limiters, they will start at a zero allocation + final long time = System.nanoTime(); + this.chunkLoadTicketLimiter.reset(time); + this.chunkGenerateTicketLimiter.reset(time); + this.chunkSendLimiter.reset(time); + + // now we can update + this.update(); + } + + private boolean isLoadedChunkGeneratable(final int chunkX, final int chunkZ) { + return this.isLoadedChunkGeneratable(((ChunkSystemLevel)this.world).moonrise$getAnyChunkIfLoaded(chunkX, chunkZ)); + } + + private boolean isLoadedChunkGeneratable(final ChunkAccess chunkAccess) { + final BelowZeroRetrogen belowZeroRetrogen; + // see PortalForcer#findPortalAround + return chunkAccess != null && ( + chunkAccess.getPersistedStatus() == ChunkStatus.FULL || + ((belowZeroRetrogen = chunkAccess.getBelowZeroRetrogen()) != null && belowZeroRetrogen.targetStatus().isOrAfter(ChunkStatus.SPAWN)) + ); + } + + void update() { + io.papermc.paper.util.TickThread.ensureTickThread(this.player, "Cannot update player asynchronously"); + if (this.removed) { + throw new IllegalStateException("Updating removed player chunk loader"); + } + final ViewDistances playerDistances = ((ChunkSystemServerPlayer)this.player).moonrise$getViewDistanceHolder().getViewDistances(); + final ViewDistances worldDistances = ((ChunkSystemServerLevel)this.world).moonrise$getViewDistanceHolder().getViewDistances(); + + final int tickViewDistance = getTickDistance( + playerDistances.tickViewDistance, worldDistances.tickViewDistance, + playerDistances.loadViewDistance, worldDistances.loadViewDistance + ); + // load view cannot be less-than tick view + 1 + final int loadViewDistance = getLoadViewDistance(tickViewDistance, playerDistances.loadViewDistance, worldDistances.loadViewDistance); + // send view cannot be greater-than load view + final int clientViewDistance = getClientViewDistance(this.player); + final int sendViewDistance = getSendViewDistance(loadViewDistance, clientViewDistance, playerDistances.sendViewDistance, worldDistances.sendViewDistance); + + final ChunkPos playerPos = this.player.chunkPosition(); + final boolean canGenerateChunks = this.canPlayerGenerateChunks(); + final int currentChunkX = playerPos.x; + final int currentChunkZ = playerPos.z; + + final int prevChunkX = this.lastChunkX; + final int prevChunkZ = this.lastChunkZ; + + if ( + // has view distance stayed the same? + sendViewDistance == this.lastSendDistance + && loadViewDistance == this.lastLoadDistance + && tickViewDistance == this.lastTickDistance + + // has our chunk stayed the same? + && prevChunkX == currentChunkX + && prevChunkZ == currentChunkZ + + // can we still generate chunks? + && this.canGenerateChunks == canGenerateChunks + ) { + // nothing we care about changed, so we're not re-calculating + return; + } + + // update distance maps + this.broadcastMap.update(currentChunkX, currentChunkZ, sendViewDistance + 1); + this.loadTicketCleanup.update(currentChunkX, currentChunkZ, loadViewDistance + 1); + this.tickMap.update(currentChunkX, currentChunkZ, tickViewDistance); + if (sendViewDistance > loadViewDistance || tickViewDistance > loadViewDistance) { + throw new IllegalStateException(); + } + + // update VDs for client + // this should be after the distance map updates, as they will send unload packets + if (this.lastSentChunkRadius != sendViewDistance) { + this.player.connection.send(this.updateClientChunkRadius(sendViewDistance)); + } + if (this.lastSentSimulationDistance != tickViewDistance) { + this.player.connection.send(this.updateClientSimulationDistance(tickViewDistance)); + } + + this.sendQueue.clear(); + this.tickingQueue.clear(); + this.generatingQueue.clear(); + this.genQueue.clear(); + this.loadingQueue.clear(); + this.loadQueue.clear(); + + this.lastChunkX = currentChunkX; + this.lastChunkZ = currentChunkZ; + this.lastSendDistance = sendViewDistance; + this.lastLoadDistance = loadViewDistance; + this.lastTickDistance = tickViewDistance; + this.canGenerateChunks = canGenerateChunks; + + // +1 since we need to load chunks +1 around the load view distance... + final long[] toIterate = ParallelSearchRadiusIteration.getSearchIteration(loadViewDistance + 1); + // the iteration order is by increasing manhattan distance - so, we do NOT need to + // sort anything in the queue! + for (final long deltaChunk : toIterate) { + final int dx = CoordinateUtils.getChunkX(deltaChunk); + final int dz = CoordinateUtils.getChunkZ(deltaChunk); + final int chunkX = dx + currentChunkX; + final int chunkZ = dz + currentChunkZ; + final long chunk = CoordinateUtils.getChunkKey(chunkX, chunkZ); + final int squareDistance = Math.max(Math.abs(dx), Math.abs(dz)); + final int manhattanDistance = Math.abs(dx) + Math.abs(dz); + + // since chunk sending is not by radius alone, we need an extra check here to account for + // everything <= sendDistance + // Note: Vanilla may want to send chunks outside the send view distance, so we do need + // the dist <= view check + final boolean sendChunk = (squareDistance <= (sendViewDistance + 1)) + && wantChunkLoaded(currentChunkX, currentChunkZ, chunkX, chunkZ, sendViewDistance); + final boolean sentChunk = sendChunk ? this.sentChunks.contains(chunk) : this.sentChunks.remove(chunk); + + if (!sendChunk && sentChunk) { + // have sent the chunk, but don't want it anymore + // unload it now + this.sendUnloadChunkRaw(chunkX, chunkZ); + } + + final byte stage = this.chunkTicketStage.get(chunk); + switch (stage) { + case CHUNK_TICKET_STAGE_NONE: { + // we want the chunk to be at least loaded + this.loadQueue.enqueue(chunk); + break; + } + case CHUNK_TICKET_STAGE_LOADING: { + this.loadingQueue.enqueue(chunk); + break; + } + case CHUNK_TICKET_STAGE_LOADED: { + if (canGenerateChunks || this.isLoadedChunkGeneratable(chunkX, chunkZ)) { + this.genQueue.enqueue(chunk); + } + break; + } + case CHUNK_TICKET_STAGE_GENERATING: { + this.generatingQueue.enqueue(chunk); + break; + } + case CHUNK_TICKET_STAGE_GENERATED: { + if (sendChunk && !sentChunk) { + this.sendQueue.enqueue(chunk); + } + if (squareDistance <= tickViewDistance) { + this.tickingQueue.enqueue(chunk); + } + break; + } + case CHUNK_TICKET_STAGE_TICK: { + if (sendChunk && !sentChunk) { + this.sendQueue.enqueue(chunk); + } + break; + } + default: { + throw new IllegalStateException("Unknown stage: " + stage); + } + } + } + + // update the chunk center + // this must be done last so that the client does not ignore any of our unload chunk packets above + if (this.lastSentChunkCenterX != currentChunkX || this.lastSentChunkCenterZ != currentChunkZ) { + this.player.connection.send(this.updateClientChunkCenter(currentChunkX, currentChunkZ)); + } + + this.flushDelayedTicketOps(); + } + + void remove() { + io.papermc.paper.util.TickThread.ensureTickThread(this.player, "Cannot add player asynchronously"); + if (this.removed) { + throw new IllegalStateException("Removing removed player chunk loader"); + } + this.removed = true; + // sends the chunk unload packets + this.broadcastMap.remove(); + // cleans up loading/generating tickets + this.loadTicketCleanup.remove(); + // cleans up ticking tickets + this.tickMap.remove(); + + // purge queues + this.sendQueue.clear(); + this.tickingQueue.clear(); + this.generatingQueue.clear(); + this.genQueue.clear(); + this.loadingQueue.clear(); + this.loadQueue.clear(); + + // flush ticket changes + this.flushDelayedTicketOps(); + + // now all tickets should be removed, which is all of our external state + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/queue/ChunkUnloadQueue.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/queue/ChunkUnloadQueue.java new file mode 100644 index 0000000000000000000000000000000000000000..bc07e710a5854fd526e3bb56d1565602ec728ce1 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/queue/ChunkUnloadQueue.java @@ -0,0 +1,140 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.queue; + +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import com.google.gson.JsonArray; +import com.google.gson.JsonElement; +import com.google.gson.JsonObject; +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import java.util.concurrent.atomic.AtomicLong; + +public final class ChunkUnloadQueue { + + public final int coordinateShift; + private final AtomicLong orderGenerator = new AtomicLong(); + private final ConcurrentLong2ReferenceChainedHashTable unloadSections = new ConcurrentLong2ReferenceChainedHashTable<>(); + + /* + * Note: write operations do not occur in parallel for any given section. + * Note: coordinateShift <= region shift in order for retrieveForCurrentRegion() to function correctly + */ + + public ChunkUnloadQueue(final int coordinateShift) { + this.coordinateShift = coordinateShift; + } + + public static record SectionToUnload(int sectionX, int sectionZ, long order, int count) {} + + public List retrieveForAllRegions() { + final List ret = new ArrayList<>(); + + for (final Iterator> iterator = this.unloadSections.entryIterator(); iterator.hasNext();) { + final ConcurrentLong2ReferenceChainedHashTable.TableEntry entry = iterator.next(); + final long key = entry.getKey(); + final UnloadSection section = entry.getValue(); + final int sectionX = CoordinateUtils.getChunkX(key); + final int sectionZ = CoordinateUtils.getChunkZ(key); + + ret.add(new SectionToUnload(sectionX, sectionZ, section.order, section.chunks.size())); + } + + ret.sort((final SectionToUnload s1, final SectionToUnload s2) -> { + return Long.compare(s1.order, s2.order); + }); + + return ret; + } + + public UnloadSection getSectionUnsynchronized(final int sectionX, final int sectionZ) { + return this.unloadSections.get(CoordinateUtils.getChunkKey(sectionX, sectionZ)); + } + + public UnloadSection removeSection(final int sectionX, final int sectionZ) { + return this.unloadSections.remove(CoordinateUtils.getChunkKey(sectionX, sectionZ)); + } + + // write operation + public boolean addChunk(final int chunkX, final int chunkZ) { + // write operations do not occur in parallel for a given section + final int shift = this.coordinateShift; + final int sectionX = chunkX >> shift; + final int sectionZ = chunkZ >> shift; + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + UnloadSection section = this.unloadSections.get(chunkKey); + if (section == null) { + section = new UnloadSection(this.orderGenerator.getAndIncrement()); + this.unloadSections.put(chunkKey, section); + } + + return section.chunks.add(chunkKey); + } + + // write operation + public boolean removeChunk(final int chunkX, final int chunkZ) { + // write operations do not occur in parallel for a given section + final int shift = this.coordinateShift; + final int sectionX = chunkX >> shift; + final int sectionZ = chunkZ >> shift; + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + final UnloadSection section = this.unloadSections.get(chunkKey); + + if (section == null) { + return false; + } + + if (!section.chunks.remove(chunkKey)) { + return false; + } + + if (section.chunks.isEmpty()) { + this.unloadSections.remove(chunkKey); + } + + return true; + } + + public JsonElement toDebugJson() { + final JsonArray ret = new JsonArray(); + + for (final SectionToUnload section : this.retrieveForAllRegions()) { + final JsonObject sectionJson = new JsonObject(); + ret.add(sectionJson); + + sectionJson.addProperty("sectionX", section.sectionX()); + sectionJson.addProperty("sectionZ", section.sectionX()); + sectionJson.addProperty("order", section.order()); + + final JsonArray coordinates = new JsonArray(); + sectionJson.add("coordinates", coordinates); + + final UnloadSection actualSection = this.getSectionUnsynchronized(section.sectionX(), section.sectionZ()); + for (final LongIterator iterator = actualSection.chunks.clone().iterator(); iterator.hasNext();) { + final long coordinate = iterator.nextLong(); + + final JsonObject coordinateJson = new JsonObject(); + coordinates.add(coordinateJson); + + coordinateJson.addProperty("chunkX", Integer.valueOf(CoordinateUtils.getChunkX(coordinate))); + coordinateJson.addProperty("chunkZ", Integer.valueOf(CoordinateUtils.getChunkZ(coordinate))); + } + } + + return ret; + } + + public static final class UnloadSection { + + public final long order; + public final LongLinkedOpenHashSet chunks = new LongLinkedOpenHashSet(); + + public UnloadSection(final long order) { + this.order = order; + } + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkHolderManager.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkHolderManager.java new file mode 100644 index 0000000000000000000000000000000000000000..5576924839c9c5a42a8c430c30cb5a6275ae6f23 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkHolderManager.java @@ -0,0 +1,1430 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.lock.ReentrantAreaLock; +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.MoonriseCommon; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.queue.ChunkUnloadQueue; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkLoadTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkProgressionTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.GenericDataLoadTask; +import ca.spottedleaf.moonrise.patches.chunk_system.ticket.ChunkSystemTicket; +import ca.spottedleaf.moonrise.patches.chunk_system.util.ChunkSystemSortedArraySet; +import com.google.gson.JsonArray; +import com.google.gson.JsonObject; +import com.mojang.logging.LogUtils; +import it.unimi.dsi.fastutil.longs.Long2ByteLinkedOpenHashMap; +import it.unimi.dsi.fastutil.longs.Long2ByteMap; +import it.unimi.dsi.fastutil.longs.Long2IntMap; +import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap; +import it.unimi.dsi.fastutil.longs.Long2ObjectMap; +import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap; +import it.unimi.dsi.fastutil.longs.LongArrayList; +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.objects.ObjectRBTreeSet; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ChunkHolder; +import net.minecraft.server.level.ChunkLevel; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.server.level.Ticket; +import net.minecraft.server.level.TicketType; +import net.minecraft.util.SortedArraySet; +import net.minecraft.util.Unit; +import net.minecraft.world.level.ChunkPos; +import org.slf4j.Logger; +import java.io.IOException; +import java.text.DecimalFormat; +import java.util.ArrayDeque; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Iterator; +import java.util.List; +import java.util.Objects; +import java.util.PrimitiveIterator; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicReference; +import java.util.concurrent.locks.LockSupport; +import java.util.function.Predicate; + +public final class ChunkHolderManager { + + private static final Logger LOGGER = LogUtils.getClassLogger(); + + public static final int FULL_LOADED_TICKET_LEVEL = ChunkLevel.FULL_CHUNK_LEVEL; + public static final int BLOCK_TICKING_TICKET_LEVEL = ChunkLevel.BLOCK_TICKING_LEVEL; + public static final int ENTITY_TICKING_TICKET_LEVEL = ChunkLevel.ENTITY_TICKING_LEVEL; + public static final int MAX_TICKET_LEVEL = ChunkLevel.MAX_LEVEL; // inclusive + + public static final TicketType UNLOAD_COOLDOWN = TicketType.create("unload_cooldown", (u1, u2) -> 0, 5 * 20); + + private static final long NO_TIMEOUT_MARKER = Long.MIN_VALUE; + private static final long PROBE_MARKER = Long.MIN_VALUE + 1; + public final ReentrantAreaLock ticketLockArea; + + private final ConcurrentLong2ReferenceChainedHashTable>> tickets = new ConcurrentLong2ReferenceChainedHashTable<>(); + private final ConcurrentLong2ReferenceChainedHashTable sectionToChunkToExpireCount = new ConcurrentLong2ReferenceChainedHashTable<>(); + final ChunkUnloadQueue unloadQueue; + + private final ConcurrentLong2ReferenceChainedHashTable chunkHolders = ConcurrentLong2ReferenceChainedHashTable.createWithCapacity(16384, 0.25f); + private final ServerLevel world; + private final ChunkTaskScheduler taskScheduler; + private long currentTick; + + private final ArrayDeque pendingFullLoadUpdate = new ArrayDeque<>(); + private final ObjectRBTreeSet autoSaveQueue = new ObjectRBTreeSet<>((final NewChunkHolder c1, final NewChunkHolder c2) -> { + if (c1 == c2) { + return 0; + } + + final int saveTickCompare = Long.compare(c1.lastAutoSave, c2.lastAutoSave); + + if (saveTickCompare != 0) { + return saveTickCompare; + } + + final long coord1 = CoordinateUtils.getChunkKey(c1.chunkX, c1.chunkZ); + final long coord2 = CoordinateUtils.getChunkKey(c2.chunkX, c2.chunkZ); + + if (coord1 == coord2) { + throw new IllegalStateException("Duplicate chunkholder in auto save queue"); + } + + return Long.compare(coord1, coord2); + }); + + public ChunkHolderManager(final ServerLevel world, final ChunkTaskScheduler taskScheduler) { + this.world = world; + this.taskScheduler = taskScheduler; + this.ticketLockArea = new ReentrantAreaLock(taskScheduler.getChunkSystemLockShift()); + this.unloadQueue = new ChunkUnloadQueue(((ChunkSystemServerLevel)world).moonrise$getRegionChunkShift()); + } + + public boolean processTicketUpdates(final int posX, final int posZ) { + final int ticketShift = ThreadedTicketLevelPropagator.SECTION_SHIFT; + final int ticketMask = (1 << ticketShift) - 1; + final List scheduledTasks = new ArrayList<>(); + final List changedFullStatus = new ArrayList<>(); + final boolean ret; + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock( + ((posX >> ticketShift) - 1) << ticketShift, + ((posZ >> ticketShift) - 1) << ticketShift, + (((posX >> ticketShift) + 1) << ticketShift) | ticketMask, + (((posZ >> ticketShift) + 1) << ticketShift) | ticketMask + ); + try { + ret = this.processTicketUpdatesNoLock(posX >> ticketShift, posZ >> ticketShift, scheduledTasks, changedFullStatus); + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + this.addChangedStatuses(changedFullStatus); + + for (int i = 0, len = scheduledTasks.size(); i < len; ++i) { + scheduledTasks.get(i).schedule(); + } + + return ret; + } + + private boolean processTicketUpdatesNoLock(final int sectionX, final int sectionZ, final List scheduledTasks, + final List changedFullStatus) { + return this.ticketLevelPropagator.performUpdate( + sectionX, sectionZ, this.taskScheduler.schedulingLockArea, scheduledTasks, changedFullStatus + ); + } + + public List getOldChunkHolders() { + final List ret = new ArrayList<>(this.chunkHolders.size() + 1); + for (final Iterator iterator = this.chunkHolders.valueIterator(); iterator.hasNext();) { + ret.add(iterator.next().vanillaChunkHolder); + } + return ret; + } + + public List getChunkHolders() { + final List ret = new ArrayList<>(this.chunkHolders.size() + 1); + for (final Iterator iterator = this.chunkHolders.valueIterator(); iterator.hasNext();) { + ret.add(iterator.next()); + } + return ret; + } + + public int size() { + return this.chunkHolders.size(); + } + + // TODO replace the need for this, specifically: optimise ServerChunkCache#tickChunks + public Iterable getOldChunkHoldersIterable() { + return new Iterable() { + @Override + public Iterator iterator() { + final Iterator iterator = ChunkHolderManager.this.chunkHolders.valueIterator(); + return new Iterator() { + @Override + public boolean hasNext() { + return iterator.hasNext(); + } + + @Override + public ChunkHolder next() { + return iterator.next().vanillaChunkHolder; + } + }; + } + }; + } + + public void close(final boolean save, final boolean halt) { + io.papermc.paper.util.TickThread.ensureTickThread("Closing world off-main"); + if (halt) { + LOGGER.info("Waiting 60s for chunk system to halt for world '" + WorldUtil.getWorldName(this.world) + "'"); + if (!this.taskScheduler.halt(true, TimeUnit.SECONDS.toNanos(60L))) { + LOGGER.warn("Failed to halt world generation/loading tasks for world '" + WorldUtil.getWorldName(this.world) + "'"); + } else { + LOGGER.info("Halted chunk system for world '" + WorldUtil.getWorldName(this.world) + "'"); + } + } + + if (save) { + this.saveAllChunks(true, true, true); + } + + boolean hasTasks = false; + for (final RegionFileIOThread.RegionFileType type : RegionFileIOThread.RegionFileType.values()) { + if (RegionFileIOThread.getControllerFor(this.world, type).hasTasks()) { + hasTasks = true; + break; + } + } + if (hasTasks) { + RegionFileIOThread.flush(); + } + + // kill regionfile cache + for (final RegionFileIOThread.RegionFileType type : RegionFileIOThread.RegionFileType.values()) { + try { + RegionFileIOThread.getControllerFor(this.world, type).getCache().close(); + } catch (final IOException ex) { + LOGGER.error("Failed to close '" + type.name() + "' regionfile cache for world '" + WorldUtil.getWorldName(this.world) + "'", ex); + } + } + } + + void ensureInAutosave(final NewChunkHolder holder) { + if (!this.autoSaveQueue.contains(holder)) { + holder.lastAutoSave = this.currentTick; + this.autoSaveQueue.add(holder); + } + } + + public void autoSave() { + final List reschedule = new ArrayList<>(); + final long currentTick = this.currentTick; + final long maxSaveTime = currentTick - Math.max(1L, this.world.paperConfig().chunks.autoSaveInterval.value()); + final int maxToSave = this.world.paperConfig().chunks.maxAutoSaveChunksPerTick; + for (int autoSaved = 0; autoSaved < maxToSave && !this.autoSaveQueue.isEmpty();) { + final NewChunkHolder holder = this.autoSaveQueue.first(); + + if (holder.lastAutoSave > maxSaveTime) { + break; + } + + this.autoSaveQueue.remove(holder); + + holder.lastAutoSave = currentTick; + if (holder.save(false) != null) { + ++autoSaved; + } + + if (holder.getChunkStatus().isOrAfter(FullChunkStatus.FULL)) { + reschedule.add(holder); + } + } + + for (final NewChunkHolder holder : reschedule) { + if (holder.getChunkStatus().isOrAfter(FullChunkStatus.FULL)) { + this.autoSaveQueue.add(holder); + } + } + } + + public void saveAllChunks(final boolean flush, final boolean shutdown, final boolean logProgress) { + final List holders = this.getChunkHolders(); + + if (logProgress) { + LOGGER.info("Saving all chunkholders for world '" + WorldUtil.getWorldName(this.world) + "'"); + } + + final DecimalFormat format = new DecimalFormat("#0.00"); + + int saved = 0; + + long start = System.nanoTime(); + long lastLog = start; + boolean needsFlush = false; + final int flushInterval = 50; + + int savedChunk = 0; + int savedEntity = 0; + int savedPoi = 0; + + for (int i = 0, len = holders.size(); i < len; ++i) { + final NewChunkHolder holder = holders.get(i); + try { + final NewChunkHolder.SaveStat saveStat = holder.save(shutdown); + if (saveStat != null) { + ++saved; + needsFlush = flush; + if (saveStat.savedChunk()) { + ++savedChunk; + } + if (saveStat.savedEntityChunk()) { + ++savedEntity; + } + if (saveStat.savedPoiChunk()) { + ++savedPoi; + } + } + } catch (final Throwable thr) { + LOGGER.error("Failed to save chunk (" + holder.chunkX + "," + holder.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "'", thr); + } + if (needsFlush && (saved % flushInterval) == 0) { + needsFlush = false; + RegionFileIOThread.partialFlush(flushInterval / 2); + } + if (logProgress) { + final long currTime = System.nanoTime(); + if ((currTime - lastLog) > TimeUnit.SECONDS.toNanos(10L)) { + lastLog = currTime; + LOGGER.info("Saved " + saved + " chunks (" + format.format((double)(i+1)/(double)len * 100.0) + "%) in world '" + WorldUtil.getWorldName(this.world) + "'"); + } + } + } + if (flush) { + RegionFileIOThread.flush(); + try { + RegionFileIOThread.flushRegionStorages(this.world); + } catch (final IOException ex) { + LOGGER.error("Exception when flushing regions in world '" + WorldUtil.getWorldName(this.world) + "'", ex); + } + } + if (logProgress) { + LOGGER.info("Saved " + savedChunk + " block chunks, " + savedEntity + " entity chunks, " + savedPoi + " poi chunks in world '" + WorldUtil.getWorldName(this.world) + "' in " + format.format(1.0E-9 * (System.nanoTime() - start)) + "s"); + } + } + + private final ThreadedTicketLevelPropagator ticketLevelPropagator = new ThreadedTicketLevelPropagator() { + @Override + protected void processLevelUpdates(final Long2ByteLinkedOpenHashMap updates) { + // first the necessary chunkholders must be created, so just update the ticket levels + for (final Iterator iterator = updates.long2ByteEntrySet().fastIterator(); iterator.hasNext();) { + final Long2ByteMap.Entry entry = iterator.next(); + final long key = entry.getLongKey(); + final int newLevel = convertBetweenTicketLevels((int)entry.getByteValue()); + + NewChunkHolder current = ChunkHolderManager.this.chunkHolders.get(key); + if (current == null && newLevel > MAX_TICKET_LEVEL) { + // not loaded and it shouldn't be loaded! + iterator.remove(); + continue; + } + + final int currentLevel = current == null ? MAX_TICKET_LEVEL + 1 : current.getCurrentTicketLevel(); + if (currentLevel == newLevel) { + // nothing to do + iterator.remove(); + continue; + } + + if (current == null) { + // must create + current = ChunkHolderManager.this.createChunkHolder(key); + ChunkHolderManager.this.chunkHolders.put(key, current); + current.updateTicketLevel(newLevel); + } else { + current.updateTicketLevel(newLevel); + } + } + } + + @Override + protected void processSchedulingUpdates(final Long2ByteLinkedOpenHashMap updates, final List scheduledTasks, + final List changedFullStatus) { + final List prev = CURRENT_TICKET_UPDATE_SCHEDULING.get(); + CURRENT_TICKET_UPDATE_SCHEDULING.set(scheduledTasks); + try { + for (final LongIterator iterator = updates.keySet().iterator(); iterator.hasNext();) { + final long key = iterator.nextLong(); + final NewChunkHolder current = ChunkHolderManager.this.chunkHolders.get(key); + + if (current == null) { + throw new IllegalStateException("Expected chunk holder to be created"); + } + + current.processTicketLevelUpdate(scheduledTasks, changedFullStatus); + } + } finally { + CURRENT_TICKET_UPDATE_SCHEDULING.set(prev); + } + } + }; + // function for converting between ticket levels and propagator levels and vice versa + // the problem is the ticket level propagator will propagate from a set source down to zero, whereas mojang expects + // levels to propagate from a set value up to a maximum value. so we need to convert the levels we put into the propagator + // and the levels we get out of the propagator + + public static int convertBetweenTicketLevels(final int level) { + return ChunkLevel.MAX_LEVEL - level + 1; + } + + public String getTicketDebugString(final long coordinate) { + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(CoordinateUtils.getChunkX(coordinate), CoordinateUtils.getChunkZ(coordinate)); + try { + final SortedArraySet> tickets = this.tickets.get(coordinate); + + return tickets != null ? tickets.first().toString() : "no_ticket"; + } finally { + if (ticketLock != null) { + this.ticketLockArea.unlock(ticketLock); + } + } + } + + public Long2ObjectOpenHashMap>> getTicketsCopy() { + final Long2ObjectOpenHashMap>> ret = new Long2ObjectOpenHashMap<>(); + final Long2ObjectOpenHashMap sections = new Long2ObjectOpenHashMap<>(); + final int sectionShift = this.taskScheduler.getChunkSystemLockShift(); + for (final PrimitiveIterator.OfLong iterator = this.tickets.keyIterator(); iterator.hasNext();) { + final long coord = iterator.nextLong(); + sections.computeIfAbsent( + CoordinateUtils.getChunkKey( + CoordinateUtils.getChunkX(coord) >> sectionShift, + CoordinateUtils.getChunkZ(coord) >> sectionShift + ), + (final long keyInMap) -> { + return new LongArrayList(); + } + ).add(coord); + } + + for (final Iterator> iterator = sections.long2ObjectEntrySet().fastIterator(); + iterator.hasNext();) { + final Long2ObjectMap.Entry entry = iterator.next(); + final long sectionKey = entry.getLongKey(); + final LongArrayList coordinates = entry.getValue(); + + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock( + CoordinateUtils.getChunkX(sectionKey) << sectionShift, + CoordinateUtils.getChunkZ(sectionKey) << sectionShift + ); + try { + for (final LongIterator iterator2 = coordinates.iterator(); iterator2.hasNext();) { + final long coord = iterator2.nextLong(); + final SortedArraySet> tickets = this.tickets.get(coord); + if (tickets == null) { + // removed before we acquired lock + continue; + } + ret.put(coord, ((ChunkSystemSortedArraySet>)tickets).moonrise$copy()); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + } + + return ret; + } + + // Paper start + public Collection getPluginChunkTickets(int x, int z) { + com.google.common.collect.ImmutableList.Builder ret; + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(x, z); + try { + final long coordinate = CoordinateUtils.getChunkKey(x, z); + final SortedArraySet> tickets = this.tickets.get(coordinate); + + if (tickets == null) { + return java.util.Collections.emptyList(); + } + + ret = com.google.common.collect.ImmutableList.builder(); + for (Ticket ticket : tickets) { + if (ticket.getType() == TicketType.PLUGIN_TICKET) { + ret.add((org.bukkit.plugin.Plugin)ticket.key); + } + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + return ret.build(); + } + // Paper end + + protected final void updateTicketLevel(final long coordinate, final int ticketLevel) { + if (ticketLevel > ChunkLevel.MAX_LEVEL) { + this.ticketLevelPropagator.removeSource(CoordinateUtils.getChunkX(coordinate), CoordinateUtils.getChunkZ(coordinate)); + } else { + this.ticketLevelPropagator.setSource(CoordinateUtils.getChunkX(coordinate), CoordinateUtils.getChunkZ(coordinate), convertBetweenTicketLevels(ticketLevel)); + } + } + + private static int getTicketLevelAt(SortedArraySet> tickets) { + return !tickets.isEmpty() ? tickets.first().getTicketLevel() : MAX_TICKET_LEVEL + 1; + } + + public boolean addTicketAtLevel(final TicketType type, final ChunkPos chunkPos, final int level, + final T identifier) { + return this.addTicketAtLevel(type, CoordinateUtils.getChunkKey(chunkPos), level, identifier); + } + + public boolean addTicketAtLevel(final TicketType type, final int chunkX, final int chunkZ, final int level, + final T identifier) { + return this.addTicketAtLevel(type, CoordinateUtils.getChunkKey(chunkX, chunkZ), level, identifier); + } + + private void addExpireCount(final int chunkX, final int chunkZ) { + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + final int sectionShift = ((ChunkSystemServerLevel)this.world).moonrise$getRegionChunkShift(); + final long sectionKey = CoordinateUtils.getChunkKey( + chunkX >> sectionShift, + chunkZ >> sectionShift + ); + + this.sectionToChunkToExpireCount.computeIfAbsent(sectionKey, (final long keyInMap) -> { + return new Long2IntOpenHashMap(); + }).addTo(chunkKey, 1); + } + + private void removeExpireCount(final int chunkX, final int chunkZ) { + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + final int sectionShift = ((ChunkSystemServerLevel)this.world).moonrise$getRegionChunkShift(); + final long sectionKey = CoordinateUtils.getChunkKey( + chunkX >> sectionShift, + chunkZ >> sectionShift + ); + + final Long2IntOpenHashMap removeCounts = this.sectionToChunkToExpireCount.get(sectionKey); + final int prevCount = removeCounts.addTo(chunkKey, -1); + + if (prevCount == 1) { + removeCounts.remove(chunkKey); + if (removeCounts.isEmpty()) { + this.sectionToChunkToExpireCount.remove(sectionKey); + } + } + } + + // supposed to return true if the ticket was added and did not replace another + // but, we always return false if the ticket cannot be added + public boolean addTicketAtLevel(final TicketType type, final long chunk, final int level, final T identifier) { + return this.addTicketAtLevel(type, chunk, level, identifier, true); + } + + boolean addTicketAtLevel(final TicketType type, final long chunk, final int level, final T identifier, final boolean lock) { + final long removeDelay = type.timeout <= 0 ? NO_TIMEOUT_MARKER : type.timeout; + if (level > MAX_TICKET_LEVEL) { + return false; + } + + final int chunkX = CoordinateUtils.getChunkX(chunk); + final int chunkZ = CoordinateUtils.getChunkZ(chunk); + final Ticket ticket = new Ticket<>(type, level, identifier); + ((ChunkSystemTicket)(Object)ticket).moonrise$setRemoveDelay(removeDelay); + + final ReentrantAreaLock.Node ticketLock = lock ? this.ticketLockArea.lock(chunkX, chunkZ) : null; + try { + final SortedArraySet> ticketsAtChunk = this.tickets.computeIfAbsent(chunk, (final long keyInMap) -> { + return SortedArraySet.create(4); + }); + + final int levelBefore = getTicketLevelAt(ticketsAtChunk); + final Ticket current = (Ticket)((ChunkSystemSortedArraySet>)ticketsAtChunk).moonrise$replace(ticket); + final int levelAfter = getTicketLevelAt(ticketsAtChunk); + + if (current != ticket) { + final long oldRemoveDelay = ((ChunkSystemTicket)(Object)current).moonrise$getRemoveDelay(); + if (removeDelay != oldRemoveDelay) { + if (oldRemoveDelay != NO_TIMEOUT_MARKER && removeDelay == NO_TIMEOUT_MARKER) { + this.removeExpireCount(chunkX, chunkZ); + } else if (oldRemoveDelay == NO_TIMEOUT_MARKER) { + // since old != new, we have that NO_TIMEOUT_MARKER != new + this.addExpireCount(chunkX, chunkZ); + } + } + } else { + if (removeDelay != NO_TIMEOUT_MARKER) { + this.addExpireCount(chunkX, chunkZ); + } + } + + if (levelBefore != levelAfter) { + this.updateTicketLevel(chunk, levelAfter); + } + + return current == ticket; + } finally { + if (ticketLock != null) { + this.ticketLockArea.unlock(ticketLock); + } + } + } + + public boolean removeTicketAtLevel(final TicketType type, final ChunkPos chunkPos, final int level, final T identifier) { + return this.removeTicketAtLevel(type, CoordinateUtils.getChunkKey(chunkPos), level, identifier); + } + + public boolean removeTicketAtLevel(final TicketType type, final int chunkX, final int chunkZ, final int level, final T identifier) { + return this.removeTicketAtLevel(type, CoordinateUtils.getChunkKey(chunkX, chunkZ), level, identifier); + } + + public boolean removeTicketAtLevel(final TicketType type, final long chunk, final int level, final T identifier) { + return this.removeTicketAtLevel(type, chunk, level, identifier, true); + } + + boolean removeTicketAtLevel(final TicketType type, final long chunk, final int level, final T identifier, final boolean lock) { + if (level > MAX_TICKET_LEVEL) { + return false; + } + + final int chunkX = CoordinateUtils.getChunkX(chunk); + final int chunkZ = CoordinateUtils.getChunkZ(chunk); + final Ticket probe = new Ticket<>(type, level, identifier); + + final ReentrantAreaLock.Node ticketLock = lock ? this.ticketLockArea.lock(chunkX, chunkZ) : null; + try { + final SortedArraySet> ticketsAtChunk = this.tickets.get(chunk); + if (ticketsAtChunk == null) { + return false; + } + + final int oldLevel = getTicketLevelAt(ticketsAtChunk); + final Ticket ticket = (Ticket)((ChunkSystemSortedArraySet>)ticketsAtChunk).moonrise$removeAndGet(probe); + + if (ticket == null) { + return false; + } + + final int newLevel = getTicketLevelAt(ticketsAtChunk); + // we should not change the ticket levels while the target region may be ticking + if (oldLevel != newLevel) { + final Ticket unknownTicket = new Ticket<>(TicketType.UNKNOWN, level, new ChunkPos(chunk)); + ((ChunkSystemTicket)(Object)unknownTicket).moonrise$setRemoveDelay(Math.max(1, TicketType.UNKNOWN.timeout)); + if (ticketsAtChunk.add(unknownTicket)) { + this.addExpireCount(chunkX, chunkZ); + } else { + throw new IllegalStateException("Should have been able to add " + unknownTicket + " to " + ticketsAtChunk); + } + } + + final long removeDelay = ((ChunkSystemTicket)(Object)ticket).moonrise$getRemoveDelay(); + if (removeDelay != NO_TIMEOUT_MARKER) { + this.removeExpireCount(chunkX, chunkZ); + } + + return true; + } finally { + if (ticketLock != null) { + this.ticketLockArea.unlock(ticketLock); + } + } + } + + // atomic with respect to all add/remove/addandremove ticket calls for the given chunk + public void addAndRemoveTickets(final long chunk, final TicketType addType, final int addLevel, final T addIdentifier, + final TicketType removeType, final int removeLevel, final V removeIdentifier) { + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(CoordinateUtils.getChunkX(chunk), CoordinateUtils.getChunkZ(chunk)); + try { + this.addTicketAtLevel(addType, chunk, addLevel, addIdentifier, false); + this.removeTicketAtLevel(removeType, chunk, removeLevel, removeIdentifier, false); + } finally { + this.ticketLockArea.unlock(ticketLock); + } + } + + // atomic with respect to all add/remove/addandremove ticket calls for the given chunk + public boolean addIfRemovedTicket(final long chunk, final TicketType addType, final int addLevel, final T addIdentifier, + final TicketType removeType, final int removeLevel, final V removeIdentifier) { + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(CoordinateUtils.getChunkX(chunk), CoordinateUtils.getChunkZ(chunk)); + try { + if (this.removeTicketAtLevel(removeType, chunk, removeLevel, removeIdentifier, false)) { + this.addTicketAtLevel(addType, chunk, addLevel, addIdentifier, false); + return true; + } + return false; + } finally { + this.ticketLockArea.unlock(ticketLock); + } + } + + public void removeAllTicketsFor(final TicketType ticketType, final int ticketLevel, final T ticketIdentifier) { + if (ticketLevel > MAX_TICKET_LEVEL) { + return; + } + + final Long2ObjectOpenHashMap sections = new Long2ObjectOpenHashMap<>(); + final int sectionShift = this.taskScheduler.getChunkSystemLockShift(); + for (final PrimitiveIterator.OfLong iterator = this.tickets.keyIterator(); iterator.hasNext();) { + final long coord = iterator.nextLong(); + sections.computeIfAbsent( + CoordinateUtils.getChunkKey( + CoordinateUtils.getChunkX(coord) >> sectionShift, + CoordinateUtils.getChunkZ(coord) >> sectionShift + ), + (final long keyInMap) -> { + return new LongArrayList(); + } + ).add(coord); + } + + for (final Iterator> iterator = sections.long2ObjectEntrySet().fastIterator(); + iterator.hasNext();) { + final Long2ObjectMap.Entry entry = iterator.next(); + final long sectionKey = entry.getLongKey(); + final LongArrayList coordinates = entry.getValue(); + + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock( + CoordinateUtils.getChunkX(sectionKey) << sectionShift, + CoordinateUtils.getChunkZ(sectionKey) << sectionShift + ); + try { + for (final LongIterator iterator2 = coordinates.iterator(); iterator2.hasNext();) { + final long coord = iterator2.nextLong(); + this.removeTicketAtLevel(ticketType, coord, ticketLevel, ticketIdentifier, false); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + } + } + + public void tick() { + final int sectionShift = ((ChunkSystemServerLevel)this.world).moonrise$getRegionChunkShift(); + + final Predicate> expireNow = (final Ticket ticket) -> { + long removeDelay = ((ChunkSystemTicket)(Object)ticket).moonrise$getRemoveDelay(); + if (removeDelay == NO_TIMEOUT_MARKER) { + return false; + } + --removeDelay; + ((ChunkSystemTicket)(Object)ticket).moonrise$setRemoveDelay(removeDelay); + return removeDelay <= 0L; + }; + + for (final PrimitiveIterator.OfLong iterator = this.sectionToChunkToExpireCount.keyIterator(); iterator.hasNext();) { + final long sectionKey = iterator.nextLong(); + + if (!this.sectionToChunkToExpireCount.containsKey(sectionKey)) { + // removed concurrently + continue; + } + + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock( + CoordinateUtils.getChunkX(sectionKey) << sectionShift, + CoordinateUtils.getChunkZ(sectionKey) << sectionShift + ); + + try { + final Long2IntOpenHashMap chunkToExpireCount = this.sectionToChunkToExpireCount.get(sectionKey); + if (chunkToExpireCount == null) { + // lost to some race + continue; + } + + for (final Iterator iterator1 = chunkToExpireCount.long2IntEntrySet().fastIterator(); iterator1.hasNext();) { + final Long2IntMap.Entry entry = iterator1.next(); + + final long chunkKey = entry.getLongKey(); + final int expireCount = entry.getIntValue(); + + final SortedArraySet> tickets = this.tickets.get(chunkKey); + final int levelBefore = getTicketLevelAt(tickets); + + final int sizeBefore = tickets.size(); + tickets.removeIf(expireNow); + final int sizeAfter = tickets.size(); + final int levelAfter = getTicketLevelAt(tickets); + + if (tickets.isEmpty()) { + this.tickets.remove(chunkKey); + } + if (levelBefore != levelAfter) { + this.updateTicketLevel(chunkKey, levelAfter); + } + + final int newExpireCount = expireCount - (sizeBefore - sizeAfter); + + if (newExpireCount == expireCount) { + continue; + } + + if (newExpireCount != 0) { + entry.setValue(newExpireCount); + } else { + iterator1.remove(); + } + } + + if (chunkToExpireCount.isEmpty()) { + this.sectionToChunkToExpireCount.remove(sectionKey); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + } + + this.processTicketUpdates(); + } + + public NewChunkHolder getChunkHolder(final int chunkX, final int chunkZ) { + return this.chunkHolders.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + } + + public NewChunkHolder getChunkHolder(final long position) { + return this.chunkHolders.get(position); + } + + public void raisePriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + final NewChunkHolder chunkHolder = this.getChunkHolder(x, z); + if (chunkHolder != null) { + chunkHolder.raisePriority(priority); + } + } + + public void setPriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + final NewChunkHolder chunkHolder = this.getChunkHolder(x, z); + if (chunkHolder != null) { + chunkHolder.setPriority(priority); + } + } + + public void lowerPriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + final NewChunkHolder chunkHolder = this.getChunkHolder(x, z); + if (chunkHolder != null) { + chunkHolder.lowerPriority(priority); + } + } + + private NewChunkHolder createChunkHolder(final long position) { + final NewChunkHolder ret = new NewChunkHolder(this.world, CoordinateUtils.getChunkX(position), CoordinateUtils.getChunkZ(position), this.taskScheduler); + + ChunkSystem.onChunkHolderCreate(this.world, ret.vanillaChunkHolder); + + return ret; + } + + // because this function creates the chunk holder without a ticket, it is the caller's responsibility to ensure + // the chunk holder eventually unloads. this should only be used to avoid using processTicketUpdates to create chunkholders, + // as processTicketUpdates may call plugin logic; in every other case a ticket is appropriate + private NewChunkHolder getOrCreateChunkHolder(final int chunkX, final int chunkZ) { + return this.getOrCreateChunkHolder(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + } + + private NewChunkHolder getOrCreateChunkHolder(final long position) { + final int chunkX = CoordinateUtils.getChunkX(position); + final int chunkZ = CoordinateUtils.getChunkZ(position); + + if (!this.ticketLockArea.isHeldByCurrentThread(chunkX, chunkZ)) { + throw new IllegalStateException("Must hold ticket level update lock!"); + } + if (!this.taskScheduler.schedulingLockArea.isHeldByCurrentThread(chunkX, chunkZ)) { + throw new IllegalStateException("Must hold scheduler lock!!"); + } + + // we could just acquire these locks, but... + // must own the locks because the caller needs to ensure that no unload can occur AFTER this function returns + + NewChunkHolder current = this.chunkHolders.get(position); + if (current != null) { + return current; + } + + current = this.createChunkHolder(position); + this.chunkHolders.put(position, current); + + + return current; + } + + public ChunkEntitySlices getOrCreateEntityChunk(final int chunkX, final int chunkZ, final boolean transientChunk) { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Cannot create entity chunk off-main"); + ChunkEntitySlices ret; + + NewChunkHolder current = this.getChunkHolder(chunkX, chunkZ); + if (current != null && (ret = current.getEntityChunk()) != null && (transientChunk || !ret.isTransient())) { + return ret; + } + + final AtomicBoolean isCompleted = new AtomicBoolean(); + final Thread waiter = Thread.currentThread(); + final Long entityLoadId = ChunkTaskScheduler.getNextEntityLoadId(); + NewChunkHolder.GenericDataLoadTaskCallback loadTask = null; + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(chunkX, chunkZ); + try { + this.addTicketAtLevel(ChunkTaskScheduler.ENTITY_LOAD, chunkX, chunkZ, MAX_TICKET_LEVEL, entityLoadId); + final ReentrantAreaLock.Node schedulingLock = this.taskScheduler.schedulingLockArea.lock(chunkX, chunkZ); + try { + current = this.getOrCreateChunkHolder(chunkX, chunkZ); + if ((ret = current.getEntityChunk()) != null && (transientChunk || !ret.isTransient())) { + this.removeTicketAtLevel(ChunkTaskScheduler.ENTITY_LOAD, chunkX, chunkZ, MAX_TICKET_LEVEL, entityLoadId); + return ret; + } + + if (!transientChunk) { + if (current.isEntityChunkNBTLoaded()) { + isCompleted.setPlain(true); + } else { + loadTask = current.getOrLoadEntityData((final GenericDataLoadTask.TaskResult result) -> { + isCompleted.set(true); + LockSupport.unpark(waiter); + }); + final ChunkLoadTask.EntityDataLoadTask entityLoad = current.getEntityDataLoadTask(); + + if (entityLoad != null) { + entityLoad.raisePriority(PrioritisedExecutor.Priority.BLOCKING); + } + } + } + } finally { + this.taskScheduler.schedulingLockArea.unlock(schedulingLock); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + if (loadTask != null) { + loadTask.schedule(); + } + + if (!transientChunk) { + // Note: no need to busy wait on the chunk queue, entity load will complete off-main + boolean interrupted = false; + while (!isCompleted.get()) { + interrupted |= Thread.interrupted(); + LockSupport.park(); + } + + if (interrupted) { + Thread.currentThread().interrupt(); + } + } + + // now that the entity data is loaded, we can load it into the world + + ret = current.loadInEntityChunk(transientChunk); + + this.removeTicketAtLevel(ChunkTaskScheduler.ENTITY_LOAD, chunkX, chunkZ, MAX_TICKET_LEVEL, entityLoadId); + + return ret; + } + + public PoiChunk getPoiChunkIfLoaded(final int chunkX, final int chunkZ, final boolean checkLoadInCallback) { + final NewChunkHolder holder = this.getChunkHolder(chunkX, chunkZ); + if (holder != null) { + final PoiChunk ret = holder.getPoiChunk(); + return ret == null || (checkLoadInCallback && !ret.isLoaded()) ? null : ret; + } + return null; + } + + public PoiChunk loadPoiChunk(final int chunkX, final int chunkZ) { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Cannot create poi chunk off-main"); + PoiChunk ret; + + NewChunkHolder current = this.getChunkHolder(chunkX, chunkZ); + if (current != null && (ret = current.getPoiChunk()) != null) { + ret.load(); + return ret; + } + + final AtomicReference completed = new AtomicReference<>(); + final AtomicBoolean isCompleted = new AtomicBoolean(); + final Thread waiter = Thread.currentThread(); + final Long poiLoadId = ChunkTaskScheduler.getNextPoiLoadId(); + NewChunkHolder.GenericDataLoadTaskCallback loadTask = null; + final ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(chunkX, chunkZ); + try { + this.addTicketAtLevel(ChunkTaskScheduler.POI_LOAD, chunkX, chunkZ, MAX_TICKET_LEVEL, poiLoadId); + final ReentrantAreaLock.Node schedulingLock = this.taskScheduler.schedulingLockArea.lock(chunkX, chunkZ); + try { + current = this.getOrCreateChunkHolder(chunkX, chunkZ); + if (null == (ret = current.getPoiChunk())) { + loadTask = current.getOrLoadPoiData((final GenericDataLoadTask.TaskResult result) -> { + completed.setPlain(result.left()); + isCompleted.set(true); + LockSupport.unpark(waiter); + }); + final ChunkLoadTask.PoiDataLoadTask poiLoad = current.getPoiDataLoadTask(); + + if (poiLoad != null) { + poiLoad.raisePriority(PrioritisedExecutor.Priority.BLOCKING); + } + } + } finally { + this.taskScheduler.schedulingLockArea.unlock(schedulingLock); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + if (loadTask != null) { + loadTask.schedule(); + + // Note: no need to busy wait on the chunk queue, poi load will complete off-main + + boolean interrupted = false; + while (!isCompleted.get()) { + interrupted |= Thread.interrupted(); + LockSupport.park(); + } + + if (interrupted) { + Thread.currentThread().interrupt(); + } + + ret = completed.getPlain(); + } // else: became loaded during the scheduling attempt, need to ensure load() is invoked + + ret.load(); + + this.removeTicketAtLevel(ChunkTaskScheduler.POI_LOAD, chunkX, chunkZ, MAX_TICKET_LEVEL, poiLoadId); + + return ret; + } + + void addChangedStatuses(final List changedFullStatus) { + if (changedFullStatus.isEmpty()) { + return; + } + if (!io.papermc.paper.util.TickThread.isTickThread()) { + this.taskScheduler.scheduleChunkTask(() -> { + final ArrayDeque pendingFullLoadUpdate = ChunkHolderManager.this.pendingFullLoadUpdate; + for (int i = 0, len = changedFullStatus.size(); i < len; ++i) { + pendingFullLoadUpdate.add(changedFullStatus.get(i)); + } + + ChunkHolderManager.this.processPendingFullUpdate(); + }, PrioritisedExecutor.Priority.HIGHEST); + } else { + final ArrayDeque pendingFullLoadUpdate = this.pendingFullLoadUpdate; + for (int i = 0, len = changedFullStatus.size(); i < len; ++i) { + pendingFullLoadUpdate.add(changedFullStatus.get(i)); + } + } + } + + private void removeChunkHolder(final NewChunkHolder holder) { + holder.markUnloaded(); + this.autoSaveQueue.remove(holder); + ChunkSystem.onChunkHolderDelete(this.world, holder.vanillaChunkHolder); + this.chunkHolders.remove(CoordinateUtils.getChunkKey(holder.chunkX, holder.chunkZ)); + + } + + // note: never call while inside the chunk system, this will absolutely break everything + public void processUnloads() { + io.papermc.paper.util.TickThread.ensureTickThread("Cannot unload chunks off-main"); + + if (BLOCK_TICKET_UPDATES.get() == Boolean.TRUE) { + throw new IllegalStateException("Cannot unload chunks recursively"); + } + final int sectionShift = this.unloadQueue.coordinateShift; // sectionShift <= lock shift + final List unloadSectionsForRegion = this.unloadQueue.retrieveForAllRegions(); + int unloadCountTentative = 0; + for (final ChunkUnloadQueue.SectionToUnload sectionRef : unloadSectionsForRegion) { + final ChunkUnloadQueue.UnloadSection section + = this.unloadQueue.getSectionUnsynchronized(sectionRef.sectionX(), sectionRef.sectionZ()); + + if (section == null) { + // removed concurrently + continue; + } + + // technically reading the size field is unsafe, and it may be incorrect. + // We assume that the error here cumulatively goes away over many ticks. If it did not, then it is possible + // for chunks to never unload or not unload fast enough. + unloadCountTentative += section.chunks.size(); + } + + if (unloadCountTentative <= 0) { + // no work to do + return; + } + + // We do need to process updates here so that any addTicket that is synchronised before this call does not go missed. + this.processTicketUpdates(); + + final int toUnloadCount = Math.max(50, (int)(unloadCountTentative * 0.05)); + int processedCount = 0; + + for (final ChunkUnloadQueue.SectionToUnload sectionRef : unloadSectionsForRegion) { + final List stage1 = new ArrayList<>(); + final List stage2 = new ArrayList<>(); + + final int sectionLowerX = sectionRef.sectionX() << sectionShift; + final int sectionLowerZ = sectionRef.sectionZ() << sectionShift; + + // stage 1: set up for stage 2 while holding critical locks + ReentrantAreaLock.Node ticketLock = this.ticketLockArea.lock(sectionLowerX, sectionLowerZ); + try { + final ReentrantAreaLock.Node scheduleLock = this.taskScheduler.schedulingLockArea.lock(sectionLowerX, sectionLowerZ); + try { + final ChunkUnloadQueue.UnloadSection section + = this.unloadQueue.getSectionUnsynchronized(sectionRef.sectionX(), sectionRef.sectionZ()); + + if (section == null) { + // removed concurrently + continue; + } + + // collect the holders to run stage 1 on + final int sectionCount = section.chunks.size(); + + if ((sectionCount + processedCount) <= toUnloadCount) { + // we can just drain the entire section + + for (final LongIterator iterator = section.chunks.iterator(); iterator.hasNext();) { + final NewChunkHolder holder = this.chunkHolders.get(iterator.nextLong()); + if (holder == null) { + throw new IllegalStateException(); + } + stage1.add(holder); + } + + // remove section + this.unloadQueue.removeSection(sectionRef.sectionX(), sectionRef.sectionZ()); + } else { + // processedCount + len = toUnloadCount + // we cannot drain the entire section + for (int i = 0, len = toUnloadCount - processedCount; i < len; ++i) { + final NewChunkHolder holder = this.chunkHolders.get(section.chunks.removeFirstLong()); + if (holder == null) { + throw new IllegalStateException(); + } + stage1.add(holder); + } + } + + // run stage 1 + for (int i = 0, len = stage1.size(); i < len; ++i) { + final NewChunkHolder chunkHolder = stage1.get(i); + chunkHolder.removeFromUnloadQueue(); + if (chunkHolder.isSafeToUnload() != null) { + LOGGER.error("Chunkholder " + chunkHolder + " is not safe to unload but is inside the unload queue?"); + continue; + } + final NewChunkHolder.UnloadState state = chunkHolder.unloadStage1(); + if (state == null) { + // can unload immediately + this.removeChunkHolder(chunkHolder); + continue; + } + stage2.add(state); + } + } finally { + this.taskScheduler.schedulingLockArea.unlock(scheduleLock); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + // stage 2: invoke expensive unload logic, designed to run without locks thanks to stage 1 + final List stage3 = new ArrayList<>(stage2.size()); + + final Boolean before = this.blockTicketUpdates(); + try { + for (int i = 0, len = stage2.size(); i < len; ++i) { + final NewChunkHolder.UnloadState state = stage2.get(i); + final NewChunkHolder holder = state.holder(); + + holder.unloadStage2(state); + stage3.add(holder); + } + } finally { + this.unblockTicketUpdates(before); + } + + // stage 3: actually attempt to remove the chunk holders + ticketLock = this.ticketLockArea.lock(sectionLowerX, sectionLowerZ); + try { + final ReentrantAreaLock.Node scheduleLock = this.taskScheduler.schedulingLockArea.lock(sectionLowerX, sectionLowerZ); + try { + for (int i = 0, len = stage3.size(); i < len; ++i) { + final NewChunkHolder holder = stage3.get(i); + + if (holder.unloadStage3()) { + this.removeChunkHolder(holder); + } else { + // add cooldown so the next unload check is not immediately next tick + this.addTicketAtLevel(UNLOAD_COOLDOWN, CoordinateUtils.getChunkKey(holder.chunkX, holder.chunkZ), MAX_TICKET_LEVEL, Unit.INSTANCE, false); + } + } + } finally { + this.taskScheduler.schedulingLockArea.unlock(scheduleLock); + } + } finally { + this.ticketLockArea.unlock(ticketLock); + } + + processedCount += stage1.size(); + + if (processedCount >= toUnloadCount) { + break; + } + } + } + + public enum TicketOperationType { + ADD, REMOVE, ADD_IF_REMOVED, ADD_AND_REMOVE + } + + public static record TicketOperation ( + TicketOperationType op, long chunkCoord, + TicketType ticketType, int ticketLevel, T identifier, + TicketType ticketType2, int ticketLevel2, V identifier2 + ) { + + private TicketOperation(TicketOperationType op, long chunkCoord, + TicketType ticketType, int ticketLevel, T identifier) { + this(op, chunkCoord, ticketType, ticketLevel, identifier, null, 0, null); + } + + public static TicketOperation addOp(final ChunkPos chunk, final TicketType type, final int ticketLevel, final T identifier) { + return addOp(CoordinateUtils.getChunkKey(chunk), type, ticketLevel, identifier); + } + + public static TicketOperation addOp(final int chunkX, final int chunkZ, final TicketType type, final int ticketLevel, final T identifier) { + return addOp(CoordinateUtils.getChunkKey(chunkX, chunkZ), type, ticketLevel, identifier); + } + + public static TicketOperation addOp(final long chunk, final TicketType type, final int ticketLevel, final T identifier) { + return new TicketOperation<>(TicketOperationType.ADD, chunk, type, ticketLevel, identifier); + } + + public static TicketOperation removeOp(final ChunkPos chunk, final TicketType type, final int ticketLevel, final T identifier) { + return removeOp(CoordinateUtils.getChunkKey(chunk), type, ticketLevel, identifier); + } + + public static TicketOperation removeOp(final int chunkX, final int chunkZ, final TicketType type, final int ticketLevel, final T identifier) { + return removeOp(CoordinateUtils.getChunkKey(chunkX, chunkZ), type, ticketLevel, identifier); + } + + public static TicketOperation removeOp(final long chunk, final TicketType type, final int ticketLevel, final T identifier) { + return new TicketOperation<>(TicketOperationType.REMOVE, chunk, type, ticketLevel, identifier); + } + + public static TicketOperation addIfRemovedOp(final long chunk, + final TicketType addType, final int addLevel, final T addIdentifier, + final TicketType removeType, final int removeLevel, final V removeIdentifier) { + return new TicketOperation<>( + TicketOperationType.ADD_IF_REMOVED, chunk, addType, addLevel, addIdentifier, + removeType, removeLevel, removeIdentifier + ); + } + + public static TicketOperation addAndRemove(final long chunk, + final TicketType addType, final int addLevel, final T addIdentifier, + final TicketType removeType, final int removeLevel, final V removeIdentifier) { + return new TicketOperation<>( + TicketOperationType.ADD_AND_REMOVE, chunk, addType, addLevel, addIdentifier, + removeType, removeLevel, removeIdentifier + ); + } + } + + private boolean processTicketOp(TicketOperation operation) { + boolean ret = false; + switch (operation.op) { + case ADD: { + ret |= this.addTicketAtLevel(operation.ticketType, operation.chunkCoord, operation.ticketLevel, operation.identifier); + break; + } + case REMOVE: { + ret |= this.removeTicketAtLevel(operation.ticketType, operation.chunkCoord, operation.ticketLevel, operation.identifier); + break; + } + case ADD_IF_REMOVED: { + ret |= this.addIfRemovedTicket( + operation.chunkCoord, + operation.ticketType, operation.ticketLevel, operation.identifier, + operation.ticketType2, operation.ticketLevel2, operation.identifier2 + ); + break; + } + case ADD_AND_REMOVE: { + ret = true; + this.addAndRemoveTickets( + operation.chunkCoord, + operation.ticketType, operation.ticketLevel, operation.identifier, + operation.ticketType2, operation.ticketLevel2, operation.identifier2 + ); + break; + } + } + + return ret; + } + + public void performTicketUpdates(final Collection> operations) { + for (final TicketOperation operation : operations) { + this.processTicketOp(operation); + } + } + + private final ThreadLocal BLOCK_TICKET_UPDATES = ThreadLocal.withInitial(() -> { + return Boolean.FALSE; + }); + + public Boolean blockTicketUpdates() { + final Boolean ret = BLOCK_TICKET_UPDATES.get(); + BLOCK_TICKET_UPDATES.set(Boolean.TRUE); + return ret; + } + + public void unblockTicketUpdates(final Boolean before) { + BLOCK_TICKET_UPDATES.set(before); + } + + public boolean processTicketUpdates() { + return this.processTicketUpdates(true, null); + } + + private static final ThreadLocal> CURRENT_TICKET_UPDATE_SCHEDULING = new ThreadLocal<>(); + + static List getCurrentTicketUpdateScheduling() { + return CURRENT_TICKET_UPDATE_SCHEDULING.get(); + } + + private boolean processTicketUpdates(final boolean processFullUpdates, List scheduledTasks) { + io.papermc.paper.util.TickThread.ensureTickThread("Cannot process ticket levels off-main"); + if (BLOCK_TICKET_UPDATES.get() == Boolean.TRUE) { + throw new IllegalStateException("Cannot update ticket level while unloading chunks or updating entity manager"); + } + + List changedFullStatus = null; + + final boolean isTickThread = io.papermc.paper.util.TickThread.isTickThread(); + + boolean ret = false; + final boolean canProcessFullUpdates = processFullUpdates & isTickThread; + final boolean canProcessScheduling = scheduledTasks == null; + + if (this.ticketLevelPropagator.hasPendingUpdates()) { + if (scheduledTasks == null) { + scheduledTasks = new ArrayList<>(); + } + changedFullStatus = new ArrayList<>(); + + ret |= this.ticketLevelPropagator.performUpdates( + this.ticketLockArea, this.taskScheduler.schedulingLockArea, + scheduledTasks, changedFullStatus + ); + } + + if (changedFullStatus != null) { + this.addChangedStatuses(changedFullStatus); + } + + if (canProcessScheduling && scheduledTasks != null) { + for (int i = 0, len = scheduledTasks.size(); i < len; ++i) { + scheduledTasks.get(i).schedule(); + } + } + + if (canProcessFullUpdates) { + ret |= this.processPendingFullUpdate(); + } + + return ret; + } + + // only call on tick thread + private boolean processPendingFullUpdate() { + final ArrayDeque pendingFullLoadUpdate = this.pendingFullLoadUpdate; + + boolean ret = false; + + final List changedFullStatus = new ArrayList<>(); + + NewChunkHolder holder; + while ((holder = pendingFullLoadUpdate.poll()) != null) { + ret |= holder.handleFullStatusChange(changedFullStatus); + + if (!changedFullStatus.isEmpty()) { + for (int i = 0, len = changedFullStatus.size(); i < len; ++i) { + pendingFullLoadUpdate.add(changedFullStatus.get(i)); + } + changedFullStatus.clear(); + } + } + + return ret; + } + + public JsonObject getDebugJson() { + final JsonObject ret = new JsonObject(); + + ret.addProperty("lock_shift", Integer.valueOf(this.taskScheduler.getChunkSystemLockShift())); + ret.addProperty("ticket_shift", Integer.valueOf(ThreadedTicketLevelPropagator.SECTION_SHIFT)); + ret.addProperty("region_shift", Integer.valueOf(((ChunkSystemServerLevel)this.world).moonrise$getRegionChunkShift())); + + ret.add("unload_queue", this.unloadQueue.toDebugJson()); + + final JsonArray holders = new JsonArray(); + ret.add("chunkholders", holders); + + for (final NewChunkHolder holder : this.getChunkHolders()) { + holders.add(holder.getDebugJson()); + } + + final JsonArray allTicketsJson = new JsonArray(); + ret.add("tickets", allTicketsJson); + + for (final Iterator>>> iterator = this.tickets.entryIterator(); + iterator.hasNext();) { + final ConcurrentLong2ReferenceChainedHashTable.TableEntry>> coordinateTickets = iterator.next(); + final long coordinate = coordinateTickets.getKey(); + final SortedArraySet> tickets = coordinateTickets.getValue(); + + final JsonObject coordinateJson = new JsonObject(); + allTicketsJson.add(coordinateJson); + + coordinateJson.addProperty("chunkX", Long.valueOf(CoordinateUtils.getChunkX(coordinate))); + coordinateJson.addProperty("chunkZ", Long.valueOf(CoordinateUtils.getChunkZ(coordinate))); + + final JsonArray ticketsSerialized = new JsonArray(); + coordinateJson.add("tickets", ticketsSerialized); + + // note: by using a copy of the backing array, we can avoid explicit exceptions we may trip when iterating + // directly over the set using the iterator + // however, it also means we need to null-check the values, and there is a possibility that we _miss_ an + // entry OR iterate over an entry multiple times + for (final Object ticketUncasted : ((ChunkSystemSortedArraySet>)tickets).moonrise$copyBackingArray()) { + if (ticketUncasted == null) { + continue; + } + final Ticket ticket = (Ticket)ticketUncasted; + final JsonObject ticketSerialized = new JsonObject(); + ticketsSerialized.add(ticketSerialized); + + ticketSerialized.addProperty("type", ticket.getType().toString()); + ticketSerialized.addProperty("level", Integer.valueOf(ticket.getTicketLevel())); + ticketSerialized.addProperty("identifier", Objects.toString(ticket.key)); + ticketSerialized.addProperty("remove_tick", Long.valueOf(((ChunkSystemTicket)(Object)ticket).moonrise$getRemoveDelay())); + } + } + + return ret; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkTaskScheduler.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkTaskScheduler.java new file mode 100644 index 0000000000000000000000000000000000000000..bfb53d1f2f96539fbe62946252faa506188560a1 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ChunkTaskScheduler.java @@ -0,0 +1,923 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedThreadPool; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedThreadedTaskQueue; +import ca.spottedleaf.concurrentutil.lock.ReentrantAreaLock; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.MoonriseCommon; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkStatus; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.executor.RadiusAwarePrioritisedExecutor; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkFullTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkLightTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkLoadTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkProgressionTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkUpgradeGenericStatusTask; +import ca.spottedleaf.moonrise.patches.chunk_system.server.ChunkSystemMinecraftServer; +import ca.spottedleaf.moonrise.patches.chunk_system.status.ChunkSystemChunkStep; +import ca.spottedleaf.moonrise.patches.chunk_system.util.ParallelSearchRadiusIteration; +import com.mojang.logging.LogUtils; +import net.minecraft.CrashReport; +import net.minecraft.CrashReportCategory; +import net.minecraft.ReportedException; +import net.minecraft.server.level.ChunkLevel; +import net.minecraft.server.level.ChunkMap; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.GenerationChunkHolder; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.server.level.TicketType; +import net.minecraft.util.StaticCache2D; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.status.ChunkPyramid; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.chunk.status.ChunkStep; +import org.slf4j.Logger; +import java.util.ArrayDeque; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicLong; +import java.util.function.Consumer; + +public final class ChunkTaskScheduler { + + private static final Logger LOGGER = LogUtils.getClassLogger(); + + static int newChunkSystemIOThreads; + static int newChunkSystemGenParallelism; + static int newChunkSystemGenPopulationParallelism; + static int newChunkSystemLoadParallelism; + + private static boolean initialised = false; + + public static void init(io.papermc.paper.configuration.GlobalConfiguration.ChunkSystem chunkSystem) { + if (initialised) { + return; + } + initialised = true; + MoonriseCommon.init(chunkSystem); // Paper + newChunkSystemIOThreads = chunkSystem.ioThreads; + if (newChunkSystemIOThreads <= 0) { + newChunkSystemIOThreads = 1; + } else { + newChunkSystemIOThreads = Math.max(1, newChunkSystemIOThreads); + } + + String newChunkSystemGenParallelism = chunkSystem.genParallelism; + if (newChunkSystemGenParallelism.equalsIgnoreCase("default")) { + newChunkSystemGenParallelism = "true"; + } + + boolean useParallelGen; + if (newChunkSystemGenParallelism.equalsIgnoreCase("on") || newChunkSystemGenParallelism.equalsIgnoreCase("enabled") + || newChunkSystemGenParallelism.equalsIgnoreCase("true")) { + useParallelGen = true; + } else if (newChunkSystemGenParallelism.equalsIgnoreCase("off") || newChunkSystemGenParallelism.equalsIgnoreCase("disabled") + || newChunkSystemGenParallelism.equalsIgnoreCase("false")) { + useParallelGen = false; + } else { + throw new IllegalStateException("Invalid option for gen-parallelism: must be one of [on, off, enabled, disabled, true, false, default]"); + } + + ChunkTaskScheduler.newChunkSystemGenParallelism = MoonriseCommon.WORKER_THREADS; + ChunkTaskScheduler.newChunkSystemGenPopulationParallelism = useParallelGen ? MoonriseCommon.WORKER_THREADS : 1; + ChunkTaskScheduler.newChunkSystemLoadParallelism = MoonriseCommon.WORKER_THREADS; + + RegionFileIOThread.init(newChunkSystemIOThreads); + + LOGGER.info("Chunk system is using " + newChunkSystemIOThreads + " I/O threads, " + MoonriseCommon.WORKER_THREADS + " worker threads, and population gen parallelism of " + ChunkTaskScheduler.newChunkSystemGenPopulationParallelism + " threads"); + } + + public static final TicketType CHUNK_LOAD = TicketType.create("chunk_system:chunk_load", Long::compareTo); + private static final AtomicLong CHUNK_LOAD_IDS = new AtomicLong(); + + public static Long getNextChunkLoadId() { + return Long.valueOf(CHUNK_LOAD_IDS.getAndIncrement()); + } + + public static final TicketType NON_FULL_CHUNK_LOAD = TicketType.create("chunk_system:non_full_load", Long::compareTo); + private static final AtomicLong NON_FULL_CHUNK_LOAD_IDS = new AtomicLong(); + + public static Long getNextNonFullLoadId() { + return Long.valueOf(NON_FULL_CHUNK_LOAD_IDS.getAndIncrement()); + } + + public static final TicketType ENTITY_LOAD = TicketType.create("chunk_system:entity_load", Long::compareTo); + private static final AtomicLong ENTITY_LOAD_IDS = new AtomicLong(); + + public static Long getNextEntityLoadId() { + return Long.valueOf(ENTITY_LOAD_IDS.getAndIncrement()); + } + + public static final TicketType POI_LOAD = TicketType.create("chunk_system:poi_load", Long::compareTo); + private static final AtomicLong POI_LOAD_IDS = new AtomicLong(); + + public static Long getNextPoiLoadId() { + return Long.valueOf(POI_LOAD_IDS.getAndIncrement()); + } + + + public static int getTicketLevel(final ChunkStatus status) { + return ChunkLevel.byStatus(status); + } + + public final ServerLevel world; + public final PrioritisedThreadPool workers; + public final RadiusAwarePrioritisedExecutor radiusAwareScheduler; + public final PrioritisedThreadPool.PrioritisedPoolExecutor parallelGenExecutor; + private final PrioritisedThreadPool.PrioritisedPoolExecutor radiusAwareGenExecutor; + public final PrioritisedThreadPool.PrioritisedPoolExecutor loadExecutor; + + private final PrioritisedThreadedTaskQueue mainThreadExecutor = new PrioritisedThreadedTaskQueue(); + + public final ChunkHolderManager chunkHolderManager; + + static { + ((ChunkSystemChunkStatus)ChunkStatus.EMPTY).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.STRUCTURE_STARTS).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.STRUCTURE_REFERENCES).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.BIOMES).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.NOISE).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.SURFACE).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.CARVERS).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.FEATURES).moonrise$setWriteRadius(1); + ((ChunkSystemChunkStatus)ChunkStatus.INITIALIZE_LIGHT).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.LIGHT).moonrise$setWriteRadius(2); + ((ChunkSystemChunkStatus)ChunkStatus.SPAWN).moonrise$setWriteRadius(0); + ((ChunkSystemChunkStatus)ChunkStatus.FULL).moonrise$setWriteRadius(0); + + ((ChunkSystemChunkStatus)ChunkStatus.EMPTY).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.STRUCTURE_REFERENCES).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.BIOMES).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.NOISE).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.SURFACE).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.CARVERS).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.FEATURES).moonrise$setEmptyLoadStatus(true); + ((ChunkSystemChunkStatus)ChunkStatus.SPAWN).moonrise$setEmptyLoadStatus(true); + + /* + It's important that the neighbour read radius is taken into account. If _any_ later status is using some chunk as + a neighbour, it must be also safe if that neighbour is being generated. i.e for any status later than FEATURES, + for a status to be parallel safe it must not read the block data from its neighbours. + */ + final List parallelCapableStatus = Arrays.asList( + // No-op executor. + ChunkStatus.EMPTY, + + // This is parallel capable, as CB has fixed the concurrency issue with stronghold generations. + // Does not touch neighbour chunks. + ChunkStatus.STRUCTURE_STARTS, + + // Surprisingly this is parallel capable. It is simply reading the already-created structure starts + // into the structure references for the chunk. So while it reads from it neighbours, its neighbours + // will not change, even if executed in parallel. + ChunkStatus.STRUCTURE_REFERENCES, + + // Safe. Mojang runs it in parallel as well. + ChunkStatus.BIOMES, + + // Safe. Mojang runs it in parallel as well. + ChunkStatus.NOISE, + + // Parallel safe. Only touches the target chunk. Biome retrieval is now noise based, which is + // completely thread-safe. + ChunkStatus.SURFACE, + + // No global state is modified in the carvers. It only touches the specified chunk. So it is parallel safe. + ChunkStatus.CARVERS, + + // FEATURES is not parallel safe. It writes to neighbours. + + // no-op executor + ChunkStatus.INITIALIZE_LIGHT + + // LIGHT is not parallel safe. It also doesn't run on the generation executor, so no point. + + // Only writes to the specified chunk. State is not read by later statuses. Parallel safe. + // Note: it may look unsafe because it writes to a worldgenregion, but the region size is always 0 - + // see the task margin. + // However, if the neighbouring FEATURES chunk is unloaded, but then fails to load in again (for whatever + // reason), then it would write to this chunk - and since this status reads blocks from itself, it's not + // safe to execute this in parallel. + // SPAWN + + // FULL is executed on main. + ); + + for (final ChunkStatus status : parallelCapableStatus) { + ((ChunkSystemChunkStatus)status).moonrise$setParallelCapable(true); + } + } + + private static final int[] ACCESS_RADIUS_TABLE_LOAD = new int[ChunkStatus.getStatusList().size()]; + private static final int[] ACCESS_RADIUS_TABLE_GEN = new int[ChunkStatus.getStatusList().size()]; + private static final int[] ACCESS_RADIUS_TABLE = new int[ChunkStatus.getStatusList().size()]; + static { + Arrays.fill(ACCESS_RADIUS_TABLE_LOAD, -1); + Arrays.fill(ACCESS_RADIUS_TABLE_GEN, -1); + Arrays.fill(ACCESS_RADIUS_TABLE, -1); + } + + private static int getAccessRadius0(final ChunkStatus toStatus, final ChunkPyramid pyramid) { + if (toStatus == ChunkStatus.EMPTY) { + return 0; + } + + final ChunkStep chunkStep = pyramid.getStepTo(toStatus); + + final int radius = chunkStep.getAccumulatedRadiusOf(ChunkStatus.EMPTY); + int maxRange = radius; + + for (int dist = 0; dist <= radius; ++dist) { + final ChunkStatus requiredNeighbourStatus = ((ChunkSystemChunkStep)(Object)chunkStep).moonrise$getRequiredStatusAtRadius(dist); + final int rad = ACCESS_RADIUS_TABLE[requiredNeighbourStatus.getIndex()]; + if (rad == -1) { + throw new IllegalStateException(); + } + + maxRange = Math.max(maxRange, dist + rad); + } + + return maxRange; + } + + private static final int MAX_ACCESS_RADIUS; + + static { + final List statuses = ChunkStatus.getStatusList(); + for (int i = 0, len = statuses.size(); i < len; ++i) { + final ChunkStatus status = statuses.get(i); + ACCESS_RADIUS_TABLE_LOAD[i] = getAccessRadius0(status, ChunkPyramid.LOADING_PYRAMID); + ACCESS_RADIUS_TABLE_GEN[i] = getAccessRadius0(status, ChunkPyramid.GENERATION_PYRAMID); + ACCESS_RADIUS_TABLE[i] = Math.max( + ACCESS_RADIUS_TABLE_LOAD[i], + ACCESS_RADIUS_TABLE_GEN[i] + ); + } + MAX_ACCESS_RADIUS = ACCESS_RADIUS_TABLE[ACCESS_RADIUS_TABLE.length - 1]; + } + + public static int getMaxAccessRadius() { + return MAX_ACCESS_RADIUS; + } + + public static int getAccessRadius(final ChunkStatus genStatus) { + return ACCESS_RADIUS_TABLE[genStatus.getIndex()]; + } + + public static int getAccessRadius(final FullChunkStatus status) { + return (status.ordinal() - 1) + getAccessRadius(ChunkStatus.FULL); + } + + + public final ReentrantAreaLock schedulingLockArea; + private final int lockShift; + + public final int getChunkSystemLockShift() { + return this.lockShift; + } + + public ChunkTaskScheduler(final ServerLevel world, final PrioritisedThreadPool workers) { + this.world = world; + this.workers = workers; + // must be >= region shift (in paper, doesn't exist) and must be >= ticket propagator section shift + // it must be >= region shift since the regioniser assumes ticket updates do not occur in parallel for the region sections + // it must be >= ticket propagator section shift so that the ticket propagator can assume that owning a position implies owning + // the entire section + // we just take the max, as we want the smallest shift that satisfies these properties + this.lockShift = Math.max(((ChunkSystemServerLevel)world).moonrise$getRegionChunkShift(), ThreadedTicketLevelPropagator.SECTION_SHIFT); + this.schedulingLockArea = new ReentrantAreaLock(this.getChunkSystemLockShift()); + + final String worldName = WorldUtil.getWorldName(world); + this.parallelGenExecutor = workers.createExecutor("Chunk parallel generation executor for world '" + worldName + "'", 1, Math.max(1, newChunkSystemGenParallelism)); + this.radiusAwareGenExecutor = workers.createExecutor("Chunk radius aware generator for world '" + worldName + "'", 1, Math.max(1, newChunkSystemGenPopulationParallelism)); + this.loadExecutor = workers.createExecutor("Chunk load executor for world '" + worldName + "'", 1, newChunkSystemLoadParallelism); + this.radiusAwareScheduler = new RadiusAwarePrioritisedExecutor(this.radiusAwareGenExecutor, Math.max(2, 1 + newChunkSystemGenPopulationParallelism)); + this.chunkHolderManager = new ChunkHolderManager(world, this); + } + + private final AtomicBoolean failedChunkSystem = new AtomicBoolean(); + + public static Object stringIfNull(final Object obj) { + return obj == null ? "null" : obj; + } + + public void unrecoverableChunkSystemFailure(final int chunkX, final int chunkZ, final Map objectsOfInterest, final Throwable thr) { + final NewChunkHolder holder = this.chunkHolderManager.getChunkHolder(chunkX, chunkZ); + LOGGER.error("Chunk system error at chunk (" + chunkX + "," + chunkZ + "), holder: " + holder + ", exception:", new Throwable(thr)); + + if (this.failedChunkSystem.getAndSet(true)) { + return; + } + + final ReportedException reportedException = thr instanceof ReportedException ? (ReportedException)thr : new ReportedException(new CrashReport("Chunk system error", thr)); + + CrashReportCategory crashReportCategory = reportedException.getReport().addCategory("Chunk system details"); + crashReportCategory.setDetail("Chunk coordinate", new ChunkPos(chunkX, chunkZ).toString()); + crashReportCategory.setDetail("ChunkHolder", Objects.toString(holder)); + crashReportCategory.setDetail("unrecoverableChunkSystemFailure caller thread", Thread.currentThread().getName()); + + crashReportCategory = reportedException.getReport().addCategory("Chunk System Objects of Interest"); + for (final Map.Entry entry : objectsOfInterest.entrySet()) { + if (entry.getValue() instanceof Throwable thrObject) { + crashReportCategory.setDetailError(Objects.toString(entry.getKey()), thrObject); + } else { + crashReportCategory.setDetail(Objects.toString(entry.getKey()), Objects.toString(entry.getValue())); + } + } + + final Runnable crash = () -> { + throw new RuntimeException("Chunk system crash propagated from unrecoverableChunkSystemFailure", reportedException); + }; + + // this may not be good enough, specifically thanks to stupid ass plugins swallowing exceptions + this.scheduleChunkTask(chunkX, chunkZ, crash, PrioritisedExecutor.Priority.BLOCKING); + // so, make the main thread pick it up + ((ChunkSystemMinecraftServer)this.world.getServer()).moonrise$setChunkSystemCrash(new RuntimeException("Chunk system crash propagated from unrecoverableChunkSystemFailure", reportedException)); + } + + public boolean executeMainThreadTask() { + io.papermc.paper.util.TickThread.ensureTickThread("Cannot execute main thread task off-main"); + return this.mainThreadExecutor.executeTask(); + } + + public void raisePriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + this.chunkHolderManager.raisePriority(x, z, priority); + } + + public void setPriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + this.chunkHolderManager.setPriority(x, z, priority); + } + + public void lowerPriority(final int x, final int z, final PrioritisedExecutor.Priority priority) { + this.chunkHolderManager.lowerPriority(x, z, priority); + } + + public void scheduleTickingState(final int chunkX, final int chunkZ, final FullChunkStatus toStatus, + final boolean addTicket, final PrioritisedExecutor.Priority priority, + final Consumer onComplete) { + if (!io.papermc.paper.util.TickThread.isTickThread()) { + this.scheduleChunkTask(chunkX, chunkZ, () -> { + ChunkTaskScheduler.this.scheduleTickingState(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + }, priority); + return; + } + final int accessRadius = getAccessRadius(toStatus); + if (this.chunkHolderManager.ticketLockArea.isHeldByCurrentThread(chunkX, chunkZ, accessRadius)) { + throw new IllegalStateException("Cannot schedule chunk load during ticket level update"); + } + if (this.schedulingLockArea.isHeldByCurrentThread(chunkX, chunkZ, accessRadius)) { + throw new IllegalStateException("Cannot schedule chunk loading recursively"); + } + + if (toStatus == FullChunkStatus.INACCESSIBLE) { + throw new IllegalArgumentException("Cannot wait for INACCESSIBLE status"); + } + + final int minLevel = 33 - (toStatus.ordinal() - 1); + final Long chunkReference = addTicket ? getNextChunkLoadId() : null; + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + if (addTicket) { + this.chunkHolderManager.addTicketAtLevel(CHUNK_LOAD, chunkKey, minLevel, chunkReference); + this.chunkHolderManager.processTicketUpdates(); + } + + final Consumer loadCallback = (final LevelChunk chunk) -> { + try { + if (onComplete != null) { + onComplete.accept(chunk); + } + } finally { + if (addTicket) { + ChunkTaskScheduler.this.chunkHolderManager.removeTicketAtLevel(CHUNK_LOAD, chunkKey, minLevel, chunkReference); + } + } + }; + + final boolean scheduled; + final LevelChunk chunk; + final ReentrantAreaLock.Node ticketLock = this.chunkHolderManager.ticketLockArea.lock(chunkX, chunkZ, accessRadius); + try { + final ReentrantAreaLock.Node schedulingLock = this.schedulingLockArea.lock(chunkX, chunkZ, accessRadius); + try { + final NewChunkHolder chunkHolder = this.chunkHolderManager.getChunkHolder(chunkKey); + if (chunkHolder == null || chunkHolder.getTicketLevel() > minLevel) { + scheduled = false; + chunk = null; + } else { + final FullChunkStatus currStatus = chunkHolder.getChunkStatus(); + if (currStatus.isOrAfter(toStatus)) { + scheduled = false; + chunk = (LevelChunk)chunkHolder.getCurrentChunk(); + } else { + scheduled = true; + chunk = null; + + final int radius = toStatus.ordinal() - 1; // 0 -> BORDER, 1 -> TICKING, 2 -> ENTITY_TICKING + for (int dz = -radius; dz <= radius; ++dz) { + for (int dx = -radius; dx <= radius; ++dx) { + final NewChunkHolder neighbour = + (dx | dz) == 0 ? chunkHolder : this.chunkHolderManager.getChunkHolder(dx + chunkX, dz + chunkZ); + if (neighbour != null) { + neighbour.raisePriority(priority); + } + } + } + + // ticket level should schedule for us + chunkHolder.addFullStatusConsumer(toStatus, loadCallback); + } + } + } finally { + this.schedulingLockArea.unlock(schedulingLock); + } + } finally { + this.chunkHolderManager.ticketLockArea.unlock(ticketLock); + } + + if (!scheduled) { + // couldn't schedule + try { + loadCallback.accept(chunk); + } catch (final Throwable thr) { + LOGGER.error("Failed to process chunk full status callback", thr); + } + } + } + + public void scheduleChunkLoad(final int chunkX, final int chunkZ, final boolean gen, final ChunkStatus toStatus, final boolean addTicket, + final PrioritisedExecutor.Priority priority, final Consumer onComplete) { + if (gen) { + this.scheduleChunkLoad(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + return; + } + this.scheduleChunkLoad(chunkX, chunkZ, ChunkStatus.EMPTY, addTicket, priority, (final ChunkAccess chunk) -> { + if (chunk == null) { + onComplete.accept(null); + } else { + if (chunk.getPersistedStatus().isOrAfter(toStatus)) { + this.scheduleChunkLoad(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + } else { + onComplete.accept(null); + } + } + }); + } + + // only appropriate to use with syncLoadNonFull + public boolean beginChunkLoadForNonFullSync(final int chunkX, final int chunkZ, final ChunkStatus toStatus, + final PrioritisedExecutor.Priority priority) { + final int accessRadius = getAccessRadius(toStatus); + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + final int minLevel = ChunkTaskScheduler.getTicketLevel(toStatus); + final List tasks = new ArrayList<>(); + final ReentrantAreaLock.Node ticketLock = this.chunkHolderManager.ticketLockArea.lock(chunkX, chunkZ, accessRadius); // Folia - use area based lock to reduce contention + try { + final ReentrantAreaLock.Node schedulingLock = this.schedulingLockArea.lock(chunkX, chunkZ, accessRadius); // Folia - use area based lock to reduce contention + try { + final NewChunkHolder chunkHolder = this.chunkHolderManager.getChunkHolder(chunkKey); + if (chunkHolder == null || chunkHolder.getTicketLevel() > minLevel) { + return false; + } else { + final ChunkStatus genStatus = chunkHolder.getCurrentGenStatus(); + if (genStatus != null && genStatus.isOrAfter(toStatus)) { + return true; + } else { + chunkHolder.raisePriority(priority); + + if (!chunkHolder.upgradeGenTarget(toStatus)) { + this.schedule(chunkX, chunkZ, toStatus, chunkHolder, tasks); + } + } + } + } finally { + this.schedulingLockArea.unlock(schedulingLock); + } + } finally { + this.chunkHolderManager.ticketLockArea.unlock(ticketLock); + } + + for (int i = 0, len = tasks.size(); i < len; ++i) { + tasks.get(i).schedule(); + } + + return true; + } + + // Note: on Moonrise the non-full sync load requires blocking on managedBlock, but this is fine since there is only + // one main thread. On Folia, it is required that the non-full load can occur completely asynchronously to avoid deadlock + // between regions + public ChunkAccess syncLoadNonFull(final int chunkX, final int chunkZ, final ChunkStatus status) { + if (status == null || status.isOrAfter(ChunkStatus.FULL)) { + throw new IllegalArgumentException("Status: " + status); + } + ChunkAccess loaded = ((ChunkSystemServerLevel)this.world).moonrise$getSpecificChunkIfLoaded(chunkX, chunkZ, status); + if (loaded != null) { + return loaded; + } + + final Long ticketId = getNextNonFullLoadId(); + final int ticketLevel = getTicketLevel(status); + this.chunkHolderManager.addTicketAtLevel(NON_FULL_CHUNK_LOAD, chunkX, chunkZ, ticketLevel, ticketId); + this.chunkHolderManager.processTicketUpdates(); + + this.beginChunkLoadForNonFullSync(chunkX, chunkZ, status, PrioritisedExecutor.Priority.BLOCKING); + + // we could do a simple spinwait here, since we do not need to process tasks while performing this load + // but we process tasks only because it's a better use of the time spent + this.world.getChunkSource().mainThreadProcessor.managedBlock(() -> { + return ((ChunkSystemServerLevel)this.world).moonrise$getSpecificChunkIfLoaded(chunkX, chunkZ, status) != null; + }); + + loaded = ((ChunkSystemServerLevel)this.world).moonrise$getSpecificChunkIfLoaded(chunkX, chunkZ, status); + + this.chunkHolderManager.removeTicketAtLevel(NON_FULL_CHUNK_LOAD, chunkX, chunkZ, ticketLevel, ticketId); + + if (loaded == null) { + throw new IllegalStateException("Expected chunk to be loaded for status " + status); + } + + return loaded; + } + + public void scheduleChunkLoad(final int chunkX, final int chunkZ, final ChunkStatus toStatus, final boolean addTicket, + final PrioritisedExecutor.Priority priority, final Consumer onComplete) { + if (!io.papermc.paper.util.TickThread.isTickThread()) { + this.scheduleChunkTask(chunkX, chunkZ, () -> { + ChunkTaskScheduler.this.scheduleChunkLoad(chunkX, chunkZ, toStatus, addTicket, priority, onComplete); + }, priority); + return; + } + final int accessRadius = getAccessRadius(toStatus); + if (this.chunkHolderManager.ticketLockArea.isHeldByCurrentThread(chunkX, chunkZ, accessRadius)) { + throw new IllegalStateException("Cannot schedule chunk load during ticket level update"); + } + if (this.schedulingLockArea.isHeldByCurrentThread(chunkX, chunkZ, accessRadius)) { + throw new IllegalStateException("Cannot schedule chunk loading recursively"); + } + + if (toStatus == ChunkStatus.FULL) { + this.scheduleTickingState(chunkX, chunkZ, FullChunkStatus.FULL, addTicket, priority, (Consumer)onComplete); + return; + } + + final int minLevel = ChunkTaskScheduler.getTicketLevel(toStatus); + final Long chunkReference = addTicket ? getNextChunkLoadId() : null; + final long chunkKey = CoordinateUtils.getChunkKey(chunkX, chunkZ); + + if (addTicket) { + this.chunkHolderManager.addTicketAtLevel(CHUNK_LOAD, chunkKey, minLevel, chunkReference); + this.chunkHolderManager.processTicketUpdates(); + } + + final Consumer loadCallback = (final ChunkAccess chunk) -> { + try { + if (onComplete != null) { + onComplete.accept(chunk); + } + } finally { + if (addTicket) { + ChunkTaskScheduler.this.chunkHolderManager.removeTicketAtLevel(CHUNK_LOAD, chunkKey, minLevel, chunkReference); + } + } + }; + + final List tasks = new ArrayList<>(); + + final boolean scheduled; + final ChunkAccess chunk; + final ReentrantAreaLock.Node ticketLock = this.chunkHolderManager.ticketLockArea.lock(chunkX, chunkZ, accessRadius); + try { + final ReentrantAreaLock.Node schedulingLock = this.schedulingLockArea.lock(chunkX, chunkZ, accessRadius); + try { + final NewChunkHolder chunkHolder = this.chunkHolderManager.getChunkHolder(chunkKey); + if (chunkHolder == null || chunkHolder.getTicketLevel() > minLevel) { + scheduled = false; + chunk = null; + } else { + final ChunkStatus genStatus = chunkHolder.getCurrentGenStatus(); + if (genStatus != null && genStatus.isOrAfter(toStatus)) { + scheduled = false; + chunk = chunkHolder.getCurrentChunk(); + } else { + scheduled = true; + chunk = null; + chunkHolder.raisePriority(priority); + + if (!chunkHolder.upgradeGenTarget(toStatus)) { + this.schedule(chunkX, chunkZ, toStatus, chunkHolder, tasks); + } + chunkHolder.addStatusConsumer(toStatus, loadCallback); + } + } + } finally { + this.schedulingLockArea.unlock(schedulingLock); + } + } finally { + this.chunkHolderManager.ticketLockArea.unlock(ticketLock); + } + + for (int i = 0, len = tasks.size(); i < len; ++i) { + tasks.get(i).schedule(); + } + + if (!scheduled) { + // couldn't schedule + try { + loadCallback.accept(chunk); + } catch (final Throwable thr) { + LOGGER.error("Failed to process chunk status callback", thr); + } + } + } + + private ChunkProgressionTask createTask(final int chunkX, final int chunkZ, final ChunkAccess chunk, + final NewChunkHolder chunkHolder, final StaticCache2D neighbours, + final ChunkStatus toStatus, final PrioritisedExecutor.Priority initialPriority) { + if (toStatus == ChunkStatus.EMPTY) { + return new ChunkLoadTask(this, this.world, chunkX, chunkZ, chunkHolder, initialPriority); + } + if (toStatus == ChunkStatus.LIGHT) { + return new ChunkLightTask(this, this.world, chunkX, chunkZ, chunk, initialPriority); + } + if (toStatus == ChunkStatus.FULL) { + return new ChunkFullTask(this, this.world, chunkX, chunkZ, chunkHolder, chunk, initialPriority); + } + + return new ChunkUpgradeGenericStatusTask(this, this.world, chunkX, chunkZ, chunk, neighbours, toStatus, initialPriority); + } + + ChunkProgressionTask schedule(final int chunkX, final int chunkZ, final ChunkStatus targetStatus, final NewChunkHolder chunkHolder, + final List allTasks) { + return this.schedule(chunkX, chunkZ, targetStatus, chunkHolder, allTasks, chunkHolder.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL)); + } + + // rets new task scheduled for the _specified_ chunk + // note: this must hold the scheduling lock + // minPriority is only used to pass the priority through to neighbours, as priority calculation has not yet been done + // schedule will ignore the generation target, so it should be checked by the caller to ensure the target is not regressed! + private ChunkProgressionTask schedule(final int chunkX, final int chunkZ, final ChunkStatus targetStatus, + final NewChunkHolder chunkHolder, final List allTasks, + final PrioritisedExecutor.Priority minPriority) { + if (!this.schedulingLockArea.isHeldByCurrentThread(chunkX, chunkZ, getAccessRadius(targetStatus))) { + throw new IllegalStateException("Not holding scheduling lock"); + } + + if (chunkHolder.hasGenerationTask()) { + chunkHolder.upgradeGenTarget(targetStatus); + return null; + } + + final PrioritisedExecutor.Priority requestedPriority = PrioritisedExecutor.Priority.max( + minPriority, chunkHolder.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + final ChunkStatus currentGenStatus = chunkHolder.getCurrentGenStatus(); + final ChunkAccess chunk = chunkHolder.getCurrentChunk(); + + if (currentGenStatus == null) { + // not yet loaded + final ChunkProgressionTask task = this.createTask( + chunkX, chunkZ, chunk, chunkHolder, null, ChunkStatus.EMPTY, requestedPriority + ); + + allTasks.add(task); + + final List chunkHolderNeighbours = new ArrayList<>(1); + chunkHolderNeighbours.add(chunkHolder); + + chunkHolder.setGenerationTarget(targetStatus); + chunkHolder.setGenerationTask(task, ChunkStatus.EMPTY, chunkHolderNeighbours); + + return task; + } + + if (currentGenStatus.isOrAfter(targetStatus)) { + // nothing to do + return null; + } + + // we know for sure now that we want to schedule _something_, so set the target + chunkHolder.setGenerationTarget(targetStatus); + + final ChunkStatus chunkRealStatus = chunk.getPersistedStatus(); + final ChunkStatus toStatus = ((ChunkSystemChunkStatus)currentGenStatus).moonrise$getNextStatus(); + final ChunkPyramid chunkPyramid = chunkRealStatus.isOrAfter(toStatus) ? ChunkPyramid.LOADING_PYRAMID : ChunkPyramid.GENERATION_PYRAMID; + final ChunkStep chunkStep = chunkPyramid.getStepTo(toStatus); + + final int neighbourReadRadius = Math.max( + 0, + chunkPyramid.getStepTo(toStatus).getAccumulatedRadiusOf(ChunkStatus.EMPTY) + ); + + boolean unGeneratedNeighbours = false; + + if (neighbourReadRadius > 0) { + final ChunkMap chunkMap = this.world.getChunkSource().chunkMap; + for (final long pos : ParallelSearchRadiusIteration.getSearchIteration(neighbourReadRadius)) { + final int x = CoordinateUtils.getChunkX(pos); + final int z = CoordinateUtils.getChunkZ(pos); + final int radius = Math.max(Math.abs(x), Math.abs(z)); + final ChunkStatus requiredNeighbourStatus = ((ChunkSystemChunkStep)(Object)chunkStep).moonrise$getRequiredStatusAtRadius(radius); + + unGeneratedNeighbours |= this.checkNeighbour( + chunkX + x, chunkZ + z, requiredNeighbourStatus, chunkHolder, allTasks, requestedPriority + ); + } + } + + if (unGeneratedNeighbours) { + // can't schedule, but neighbour completion will schedule for us when they're ALL done + + // propagate our priority to neighbours + chunkHolder.recalculateNeighbourPriorities(); + return null; + } + + // need to gather neighbours + + final List chunkHolderNeighbours = new ArrayList<>((2 * neighbourReadRadius + 1) * (2 * neighbourReadRadius + 1)); + final StaticCache2D neighbours = StaticCache2D + .create(chunkX, chunkZ, neighbourReadRadius, (final int nx, final int nz) -> { + final NewChunkHolder holder = nx == chunkX && nz == chunkZ ? chunkHolder : this.chunkHolderManager.getChunkHolder(nx, nz); + chunkHolderNeighbours.add(holder); + + return holder.vanillaChunkHolder; + }); + + final ChunkProgressionTask task = this.createTask( + chunkX, chunkZ, chunk, chunkHolder, neighbours, toStatus, + chunkHolder.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + allTasks.add(task); + + chunkHolder.setGenerationTask(task, toStatus, chunkHolderNeighbours); + + return task; + } + + // rets true if the neighbour is not at the required status, false otherwise + private boolean checkNeighbour(final int chunkX, final int chunkZ, final ChunkStatus requiredStatus, final NewChunkHolder center, + final List tasks, final PrioritisedExecutor.Priority minPriority) { + final NewChunkHolder chunkHolder = this.chunkHolderManager.getChunkHolder(chunkX, chunkZ); + + if (chunkHolder == null) { + throw new IllegalStateException("Missing chunkholder when required"); + } + + final ChunkStatus holderStatus = chunkHolder.getCurrentGenStatus(); + if (holderStatus != null && holderStatus.isOrAfter(requiredStatus)) { + return false; + } + + if (chunkHolder.hasFailedGeneration()) { + return true; + } + + center.addGenerationBlockingNeighbour(chunkHolder); + chunkHolder.addWaitingNeighbour(center, requiredStatus); + + if (chunkHolder.upgradeGenTarget(requiredStatus)) { + return true; + } + + // not at status required, so we need to schedule its generation + this.schedule( + chunkX, chunkZ, requiredStatus, chunkHolder, tasks, minPriority + ); + + return true; + } + + /** + * @deprecated Chunk tasks must be tied to coordinates in the future + */ + @Deprecated + public PrioritisedExecutor.PrioritisedTask scheduleChunkTask(final Runnable run) { + return this.scheduleChunkTask(run, PrioritisedExecutor.Priority.NORMAL); + } + + /** + * @deprecated Chunk tasks must be tied to coordinates in the future + */ + @Deprecated + public PrioritisedExecutor.PrioritisedTask scheduleChunkTask(final Runnable run, final PrioritisedExecutor.Priority priority) { + return this.mainThreadExecutor.queueRunnable(run, priority); + } + + public PrioritisedExecutor.PrioritisedTask createChunkTask(final int chunkX, final int chunkZ, final Runnable run) { + return this.createChunkTask(chunkX, chunkZ, run, PrioritisedExecutor.Priority.NORMAL); + } + + public PrioritisedExecutor.PrioritisedTask createChunkTask(final int chunkX, final int chunkZ, final Runnable run, + final PrioritisedExecutor.Priority priority) { + return this.mainThreadExecutor.createTask(run, priority); + } + + public PrioritisedExecutor.PrioritisedTask scheduleChunkTask(final int chunkX, final int chunkZ, final Runnable run) { + return this.mainThreadExecutor.queueRunnable(run); + } + + public PrioritisedExecutor.PrioritisedTask scheduleChunkTask(final int chunkX, final int chunkZ, final Runnable run, + final PrioritisedExecutor.Priority priority) { + return this.mainThreadExecutor.queueRunnable(run, priority); + } + + public boolean halt(final boolean sync, final long maxWaitNS) { + this.radiusAwareGenExecutor.halt(); + this.parallelGenExecutor.halt(); + this.loadExecutor.halt(); + final long time = System.nanoTime(); + if (sync) { + for (long failures = 9L;; failures = ConcurrentUtil.linearLongBackoff(failures, 500_000L, 50_000_000L)) { + if ( + !this.radiusAwareGenExecutor.isActive() && + !this.parallelGenExecutor.isActive() && + !this.loadExecutor.isActive() + ) { + return true; + } + if ((System.nanoTime() - time) >= maxWaitNS) { + return false; + } + } + } + + return true; + } + + public static final ArrayDeque WAITING_CHUNKS = new ArrayDeque<>(); // stack + + public static final class ChunkInfo { + + public final int chunkX; + public final int chunkZ; + public final ServerLevel world; + + public ChunkInfo(final int chunkX, final int chunkZ, final ServerLevel world) { + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.world = world; + } + + @Override + public String toString() { + return "[( " + this.chunkX + "," + this.chunkZ + ") in '" + WorldUtil.getWorldName(this.world) + "']"; + } + } + + public static void pushChunkWait(final ServerLevel world, final int chunkX, final int chunkZ) { + synchronized (WAITING_CHUNKS) { + WAITING_CHUNKS.push(new ChunkInfo(chunkX, chunkZ, world)); + } + } + + public static void popChunkWait() { + synchronized (WAITING_CHUNKS) { + WAITING_CHUNKS.pop(); + } + } + + public static ChunkInfo[] getChunkInfos() { + synchronized (WAITING_CHUNKS) { + return WAITING_CHUNKS.toArray(new ChunkInfo[0]); + } + } + + // Paper start + public static void dumpAllChunkLoadInfo(final boolean longPrint) { + final ChunkInfo[] chunkInfos = getChunkInfos(); + if (chunkInfos.length > 0) { + LOGGER.error("Chunk wait task info below: "); + for (final ChunkInfo chunkInfo : chunkInfos) { + final NewChunkHolder holder = chunkInfo.world.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkInfo.chunkX, chunkInfo.chunkZ); + LOGGER.error("Chunk wait: " + chunkInfo); + LOGGER.error("Chunk holder: " + holder); + } + + // TODO + /* + if (longPrint) { + final File file = new File(new File(new File("."), "debug"), "chunks-watchdog.txt"); + LOGGER.error("Writing chunk information dump to " + file); + try { + MCUtil.dumpChunks(file, true); + LOGGER.error("Successfully written chunk information!"); + } catch (final Throwable thr) { + LOGGER.warn("Failed to dump chunk information to file " + file.toString(), thr); + } + } + */ + } + } + // Paper end +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java new file mode 100644 index 0000000000000000000000000000000000000000..05381b2c58c1b60f222eed672dddede047b663c5 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java @@ -0,0 +1,2032 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling; + +import ca.spottedleaf.concurrentutil.completable.Completable; +import ca.spottedleaf.concurrentutil.executor.Cancellable; +import ca.spottedleaf.concurrentutil.executor.standard.DelayedPrioritisedTask; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.lock.ReentrantAreaLock; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem; +import ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystemFeatures; +import ca.spottedleaf.moonrise.patches.chunk_system.async_save.AsyncChunkSaveData; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkStatus; +import ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.ChunkSystemPoiManager; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkLoadTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkProgressionTask; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.GenericDataLoadTask; +import com.google.gson.JsonArray; +import com.google.gson.JsonElement; +import com.google.gson.JsonNull; +import com.google.gson.JsonObject; +import com.google.gson.JsonPrimitive; +import it.unimi.dsi.fastutil.objects.Reference2ObjectLinkedOpenHashMap; +import it.unimi.dsi.fastutil.objects.Reference2ObjectMap; +import it.unimi.dsi.fastutil.objects.Reference2ObjectOpenHashMap; +import it.unimi.dsi.fastutil.objects.ReferenceLinkedOpenHashSet; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ChunkHolder; +import net.minecraft.server.level.ChunkLevel; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.entity.Entity; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.ImposterProtoChunk; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.chunk.storage.ChunkSerializer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.invoke.VarHandle; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.function.Consumer; + +public final class NewChunkHolder { + + private static final Logger LOGGER = LoggerFactory.getLogger(NewChunkHolder.class); + + public final ServerLevel world; + public final int chunkX; + public final int chunkZ; + + public final ChunkTaskScheduler scheduler; + + // load/unload state + + // chunk data state + + private ChunkEntitySlices entityChunk; + // entity chunk that is loaded, but not yet deserialized + private CompoundTag pendingEntityChunk; + + ChunkEntitySlices loadInEntityChunk(final boolean transientChunk) { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, this.chunkX, this.chunkZ, "Cannot sync load entity data off-main"); + final CompoundTag entityChunk; + final ChunkEntitySlices ret; + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + if (this.entityChunk != null && (transientChunk || !this.entityChunk.isTransient())) { + return this.entityChunk; + } + final CompoundTag pendingEntityChunk = this.pendingEntityChunk; + if (!transientChunk && pendingEntityChunk == null) { + throw new IllegalStateException("Must load entity data from disk before loading in the entity chunk!"); + } + + if (this.entityChunk == null) { + ret = this.entityChunk = new ChunkEntitySlices( + this.world, this.chunkX, this.chunkZ, this.getChunkStatus(), + WorldUtil.getMinSection(this.world), WorldUtil.getMaxSection(this.world) + ); + + ret.setTransient(transientChunk); + + ((ChunkSystemServerLevel)this.world).moonrise$getEntityLookup().entitySectionLoad(this.chunkX, this.chunkZ, ret); + } else { + // transientChunk = false here + ret = this.entityChunk; + this.entityChunk.setTransient(false); + } + + if (!transientChunk) { + this.pendingEntityChunk = null; + entityChunk = pendingEntityChunk == EMPTY_ENTITY_CHUNK ? null : pendingEntityChunk; + } else { + entityChunk = null; + } + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + + if (!transientChunk) { + if (entityChunk != null) { + final List entities = ChunkEntitySlices.readEntities(this.world, entityChunk); + + ((ChunkSystemServerLevel)this.world).moonrise$getEntityLookup().addEntityChunkEntities(entities, new ChunkPos(this.chunkX, this.chunkZ)); + } + } + + return ret; + } + + // needed to distinguish whether the entity chunk has been read from disk but is empty or whether it has _not_ + // been read from disk + private static final CompoundTag EMPTY_ENTITY_CHUNK = new CompoundTag(); + + private ChunkLoadTask.EntityDataLoadTask entityDataLoadTask; + // note: if entityDataLoadTask is cancelled, but on its completion entityDataLoadTaskWaiters.size() != 0, + // then the task is rescheduled + private List entityDataLoadTaskWaiters; + + public ChunkLoadTask.EntityDataLoadTask getEntityDataLoadTask() { + return this.entityDataLoadTask; + } + + // must hold schedule lock for the two below functions + + // returns only if the data has been loaded from disk, DOES NOT relate to whether it has been deserialized + // or added into the world (or even into entityChunk) + public boolean isEntityChunkNBTLoaded() { + return (this.entityChunk != null && !this.entityChunk.isTransient()) || this.pendingEntityChunk != null; + } + + private void completeEntityLoad(final GenericDataLoadTask.TaskResult result) { + final List completeWaiters; + ChunkLoadTask.EntityDataLoadTask entityDataLoadTask = null; + boolean scheduleEntityTask = false; + ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + final List waiters = this.entityDataLoadTaskWaiters; + this.entityDataLoadTask = null; + if (result != null) { + this.entityDataLoadTaskWaiters = null; + this.pendingEntityChunk = result.left() == null ? EMPTY_ENTITY_CHUNK : result.left(); + if (result.right() != null) { + LOGGER.error("Unhandled entity data load exception, data data will be lost: ", result.right()); + } + + for (final GenericDataLoadTaskCallback callback : waiters) { + callback.markCompleted(); + } + + completeWaiters = waiters; + } else { + // cancelled + completeWaiters = null; + + // need to re-schedule? + if (waiters.isEmpty()) { + this.entityDataLoadTaskWaiters = null; + // no tasks to schedule _for_ + } else { + entityDataLoadTask = this.entityDataLoadTask = new ChunkLoadTask.EntityDataLoadTask( + this.scheduler, this.world, this.chunkX, this.chunkZ, this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + entityDataLoadTask.addCallback(this::completeEntityLoad); + // need one schedule() per waiter + for (final GenericDataLoadTaskCallback callback : waiters) { + scheduleEntityTask |= entityDataLoadTask.schedule(true); + } + } + } + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + + if (scheduleEntityTask) { + entityDataLoadTask.scheduleNow(); + } + + // avoid holding the scheduling lock while completing + if (completeWaiters != null) { + for (final GenericDataLoadTaskCallback callback : completeWaiters) { + callback.acceptCompleted(result); + } + } + + schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + this.checkUnload(); + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + + // note: it is guaranteed that the consumer cannot be called for the entirety that the schedule lock is held + // however, when the consumer is invoked, it will hold the schedule lock + public GenericDataLoadTaskCallback getOrLoadEntityData(final Consumer> consumer) { + if (this.isEntityChunkNBTLoaded()) { + throw new IllegalStateException("Cannot load entity data, it is already loaded"); + } + // why not just acquire the lock? because the caller NEEDS to call isEntityChunkNBTLoaded before this! + if (!this.scheduler.schedulingLockArea.isHeldByCurrentThread(this.chunkX, this.chunkZ)) { + throw new IllegalStateException("Must hold scheduling lock"); + } + + final GenericDataLoadTaskCallback ret = new EntityDataLoadTaskCallback((Consumer)consumer, this); + + if (this.entityDataLoadTask == null) { + this.entityDataLoadTask = new ChunkLoadTask.EntityDataLoadTask( + this.scheduler, this.world, this.chunkX, this.chunkZ, this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + this.entityDataLoadTask.addCallback(this::completeEntityLoad); + this.entityDataLoadTaskWaiters = new ArrayList<>(); + } + this.entityDataLoadTaskWaiters.add(ret); + if (this.entityDataLoadTask.schedule(true)) { + ret.schedule = this.entityDataLoadTask; + } + this.checkUnload(); + + return ret; + } + + private static final class EntityDataLoadTaskCallback extends GenericDataLoadTaskCallback { + + public EntityDataLoadTaskCallback(final Consumer> consumer, final NewChunkHolder chunkHolder) { + super(consumer, chunkHolder); + } + + @Override + void internalCancel() { + this.chunkHolder.entityDataLoadTaskWaiters.remove(this); + this.chunkHolder.entityDataLoadTask.cancel(); + } + } + + private PoiChunk poiChunk; + + private ChunkLoadTask.PoiDataLoadTask poiDataLoadTask; + // note: if entityDataLoadTask is cancelled, but on its completion entityDataLoadTaskWaiters.size() != 0, + // then the task is rescheduled + private List poiDataLoadTaskWaiters; + + public ChunkLoadTask.PoiDataLoadTask getPoiDataLoadTask() { + return this.poiDataLoadTask; + } + + // must hold schedule lock for the two below functions + + public boolean isPoiChunkLoaded() { + return this.poiChunk != null; + } + + private void completePoiLoad(final GenericDataLoadTask.TaskResult result) { + final List completeWaiters; + ChunkLoadTask.PoiDataLoadTask poiDataLoadTask = null; + boolean schedulePoiTask = false; + ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + final List waiters = this.poiDataLoadTaskWaiters; + this.poiDataLoadTask = null; + if (result != null) { + this.poiDataLoadTaskWaiters = null; + this.poiChunk = result.left(); + if (result.right() != null) { + LOGGER.error("Unhandled poi load exception, poi data will be lost: ", result.right()); + } + + for (final GenericDataLoadTaskCallback callback : waiters) { + callback.markCompleted(); + } + + completeWaiters = waiters; + } else { + // cancelled + completeWaiters = null; + + // need to re-schedule? + if (waiters.isEmpty()) { + this.poiDataLoadTaskWaiters = null; + // no tasks to schedule _for_ + } else { + poiDataLoadTask = this.poiDataLoadTask = new ChunkLoadTask.PoiDataLoadTask( + this.scheduler, this.world, this.chunkX, this.chunkZ, this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + poiDataLoadTask.addCallback(this::completePoiLoad); + // need one schedule() per waiter + for (final GenericDataLoadTaskCallback callback : waiters) { + schedulePoiTask |= poiDataLoadTask.schedule(true); + } + } + } + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + + if (schedulePoiTask) { + poiDataLoadTask.scheduleNow(); + } + + // avoid holding the scheduling lock while completing + if (completeWaiters != null) { + for (final GenericDataLoadTaskCallback callback : completeWaiters) { + callback.acceptCompleted(result); + } + } + schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + this.checkUnload(); + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + + // note: it is guaranteed that the consumer cannot be called for the entirety that the schedule lock is held + // however, when the consumer is invoked, it will hold the schedule lock + public GenericDataLoadTaskCallback getOrLoadPoiData(final Consumer> consumer) { + if (this.isPoiChunkLoaded()) { + throw new IllegalStateException("Cannot load poi data, it is already loaded"); + } + // why not just acquire the lock? because the caller NEEDS to call isPoiChunkLoaded before this! + if (!this.scheduler.schedulingLockArea.isHeldByCurrentThread(this.chunkX, this.chunkZ)) { + throw new IllegalStateException("Must hold scheduling lock"); + } + + final GenericDataLoadTaskCallback ret = new PoiDataLoadTaskCallback((Consumer)consumer, this); + + if (this.poiDataLoadTask == null) { + this.poiDataLoadTask = new ChunkLoadTask.PoiDataLoadTask( + this.scheduler, this.world, this.chunkX, this.chunkZ, this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL) + ); + this.poiDataLoadTask.addCallback(this::completePoiLoad); + this.poiDataLoadTaskWaiters = new ArrayList<>(); + } + this.poiDataLoadTaskWaiters.add(ret); + if (this.poiDataLoadTask.schedule(true)) { + ret.schedule = this.poiDataLoadTask; + } + this.checkUnload(); + + return ret; + } + + private static final class PoiDataLoadTaskCallback extends GenericDataLoadTaskCallback { + + public PoiDataLoadTaskCallback(final Consumer> consumer, final NewChunkHolder chunkHolder) { + super(consumer, chunkHolder); + } + + @Override + void internalCancel() { + this.chunkHolder.poiDataLoadTaskWaiters.remove(this); + this.chunkHolder.poiDataLoadTask.cancel(); + } + } + + public static abstract class GenericDataLoadTaskCallback implements Cancellable { + + protected final Consumer> consumer; + protected final NewChunkHolder chunkHolder; + protected boolean completed; + protected GenericDataLoadTask schedule; + protected final AtomicBoolean scheduled = new AtomicBoolean(); + + public GenericDataLoadTaskCallback(final Consumer> consumer, + final NewChunkHolder chunkHolder) { + this.consumer = consumer; + this.chunkHolder = chunkHolder; + } + + public void schedule() { + if (this.scheduled.getAndSet(true)) { + throw new IllegalStateException("Double calling schedule()"); + } + if (this.schedule != null) { + this.schedule.scheduleNow(); + this.schedule = null; + } + } + + boolean isCompleted() { + return this.completed; + } + + // must hold scheduling lock + private boolean setCompleted() { + if (this.completed) { + return false; + } + return this.completed = true; + } + + // must hold scheduling lock + void markCompleted() { + if (this.completed) { + throw new IllegalStateException("May not be completed here"); + } + this.completed = true; + } + + void acceptCompleted(final GenericDataLoadTask.TaskResult result) { + if (result != null) { + if (this.completed) { + this.consumer.accept(result); + } else { + throw new IllegalStateException("Cannot be uncompleted at this point"); + } + } else { + throw new NullPointerException("Result cannot be null (cancelled)"); + } + } + + // holds scheduling lock + abstract void internalCancel(); + + @Override + public boolean cancel() { + final NewChunkHolder holder = this.chunkHolder; + final ReentrantAreaLock.Node schedulingLock = holder.scheduler.schedulingLockArea.lock(holder.chunkX, holder.chunkZ); + try { + if (!this.completed) { + this.completed = true; + this.internalCancel(); + return true; + } + return false; + } finally { + holder.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + } + + private ChunkAccess currentChunk; + + // generation status state + + /** + * Current status the chunk has been brought up to by the chunk system. null indicates no work at all + */ + private ChunkStatus currentGenStatus; + + // This allows lockless access to the chunk and last gen status + private static final ChunkStatus[] ALL_STATUSES = ChunkStatus.getStatusList().toArray(new ChunkStatus[0]); + + public static final record ChunkCompletion(ChunkAccess chunk, ChunkStatus genStatus) {}; + private static final VarHandle CHUNK_COMPLETION_ARRAY_HANDLE = ConcurrentUtil.getArrayHandle(ChunkCompletion[].class); + private final ChunkCompletion[] chunkCompletions = new ChunkCompletion[ALL_STATUSES.length]; + + private volatile ChunkCompletion lastChunkCompletion; + + public ChunkCompletion getLastChunkCompletion() { + return this.lastChunkCompletion; + } + + public ChunkAccess getChunkIfPresentUnchecked(final ChunkStatus status) { + final ChunkCompletion completion = (ChunkCompletion)CHUNK_COMPLETION_ARRAY_HANDLE.getVolatile(this.chunkCompletions, status.getIndex()); + return completion == null ? null : completion.chunk; + } + + public ChunkAccess getChunkIfPresent(final ChunkStatus status) { + final ChunkStatus maxStatus = ChunkLevel.generationStatus(this.getTicketLevel()); + + if (maxStatus == null || status.isAfter(maxStatus)) { + return null; + } + + return this.getChunkIfPresentUnchecked(status); + } + + public void replaceProtoChunk(final ImposterProtoChunk imposterProtoChunk) { + for (int i = 0, max = ChunkStatus.FULL.getIndex(); i < max; ++i) { + CHUNK_COMPLETION_ARRAY_HANDLE.setVolatile(this.chunkCompletions, i, new ChunkCompletion(imposterProtoChunk, ALL_STATUSES[i])); + } + } + + /** + * The target final chunk status the chunk system will bring the chunk to. + */ + private ChunkStatus requestedGenStatus; + + private ChunkProgressionTask generationTask; + private ChunkStatus generationTaskStatus; + + /** + * contains the neighbours that this chunk generation is blocking on + */ + private final ReferenceLinkedOpenHashSet neighboursBlockingGenTask = new ReferenceLinkedOpenHashSet<>(4); + + /** + * map of ChunkHolder -> Required Status for this chunk + */ + private final Reference2ObjectLinkedOpenHashMap neighboursWaitingForUs = new Reference2ObjectLinkedOpenHashMap<>(); + + public void addGenerationBlockingNeighbour(final NewChunkHolder neighbour) { + this.neighboursBlockingGenTask.add(neighbour); + } + + public void addWaitingNeighbour(final NewChunkHolder neighbour, final ChunkStatus requiredStatus) { + final boolean wasEmpty = this.neighboursWaitingForUs.isEmpty(); + this.neighboursWaitingForUs.put(neighbour, requiredStatus); + if (wasEmpty) { + this.checkUnload(); + } + } + + // priority state + + // the target priority for this chunk to generate at + private PrioritisedExecutor.Priority priority = null; + private boolean priorityLocked; + + // the priority neighbouring chunks have requested this chunk generate at + private PrioritisedExecutor.Priority neighbourRequestedPriority = null; + + public PrioritisedExecutor.Priority getEffectivePriority(final PrioritisedExecutor.Priority dfl) { + final PrioritisedExecutor.Priority neighbour = this.neighbourRequestedPriority; + final PrioritisedExecutor.Priority us = this.priority; + + if (neighbour == null) { + return us == null ? dfl : us; + } + if (us == null) { + return dfl; + } + + return PrioritisedExecutor.Priority.max(us, neighbour); + } + + private void recalculateNeighbourRequestedPriority() { + if (this.neighboursWaitingForUs.isEmpty()) { + this.neighbourRequestedPriority = null; + return; + } + + PrioritisedExecutor.Priority max = null; + + for (final NewChunkHolder holder : this.neighboursWaitingForUs.keySet()) { + final PrioritisedExecutor.Priority neighbourPriority = holder.getEffectivePriority(null); + if (neighbourPriority != null && (max == null || neighbourPriority.isHigherPriority(max))) { + max = neighbourPriority; + } + } + + final PrioritisedExecutor.Priority current = this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL); + this.neighbourRequestedPriority = max; + final PrioritisedExecutor.Priority next = this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL); + + if (current == next) { + return; + } + + // our effective priority has changed, so change our task + if (this.generationTask != null) { + this.generationTask.setPriority(next); + } + + // now propagate this to our neighbours + this.recalculateNeighbourPriorities(); + } + + public void recalculateNeighbourPriorities() { + for (final NewChunkHolder holder : this.neighboursBlockingGenTask) { + holder.recalculateNeighbourRequestedPriority(); + } + } + + // must hold scheduling lock + public void raisePriority(final PrioritisedExecutor.Priority priority) { + if (this.priority == null || this.priority.isHigherOrEqualPriority(priority)) { + return; + } + this.setPriority(priority); + } + + private void lockPriority() { + this.priority = null; + this.priorityLocked = true; + } + + // must hold scheduling lock + public void setPriority(final PrioritisedExecutor.Priority priority) { + if (this.priorityLocked) { + return; + } + final PrioritisedExecutor.Priority old = this.getEffectivePriority(null); + this.priority = priority; + final PrioritisedExecutor.Priority newPriority = this.getEffectivePriority(PrioritisedExecutor.Priority.NORMAL); + + if (old != newPriority) { + if (this.generationTask != null) { + this.generationTask.setPriority(newPriority); + } + } + + this.recalculateNeighbourPriorities(); + } + + // must hold scheduling lock + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + if (this.priority == null || this.priority.isLowerOrEqualPriority(priority)) { + return; + } + this.setPriority(priority); + } + + // error handling state + private ChunkStatus failedGenStatus; + private Throwable genTaskException; + private Thread genTaskFailedThread; + + private boolean failedLightUpdate; + + public void failedLightUpdate() { + this.failedLightUpdate = true; + } + + public boolean hasFailedGeneration() { + return this.genTaskException != null; + } + + // ticket level state + public int oldTicketLevel = ChunkHolderManager.MAX_TICKET_LEVEL + 1; + private int currentTicketLevel = ChunkHolderManager.MAX_TICKET_LEVEL + 1; + + public int getTicketLevel() { + return this.currentTicketLevel; + } + + public final ChunkHolder vanillaChunkHolder; + + public NewChunkHolder(final ServerLevel world, final int chunkX, final int chunkZ, final ChunkTaskScheduler scheduler) { + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.scheduler = scheduler; + this.vanillaChunkHolder = new ChunkHolder( + new ChunkPos(chunkX, chunkZ), ChunkHolderManager.MAX_TICKET_LEVEL, world, + world.getLightEngine(), null, world.getChunkSource().chunkMap + ); + ((ChunkSystemChunkHolder)this.vanillaChunkHolder).moonrise$setRealChunkHolder(this); + } + + public ChunkAccess getCurrentChunk() { + return this.currentChunk; + } + + int getCurrentTicketLevel() { + return this.currentTicketLevel; + } + + void updateTicketLevel(final int toLevel) { + this.currentTicketLevel = toLevel; + } + + private int totalNeighboursUsingThisChunk = 0; + + // holds schedule lock + public void addNeighbourUsingChunk() { + final int now = ++this.totalNeighboursUsingThisChunk; + + if (now == 1) { + this.checkUnload(); + } + } + + // holds schedule lock + public void removeNeighbourUsingChunk() { + final int now = --this.totalNeighboursUsingThisChunk; + + if (now == 0) { + this.checkUnload(); + } + + if (now < 0) { + throw new IllegalStateException("Neighbours using this chunk cannot be negative"); + } + } + + // must hold scheduling lock + // returns string reason for why chunk should remain loaded, null otherwise + public final String isSafeToUnload() { + // is ticket level below threshold? + if (this.oldTicketLevel <= ChunkHolderManager.MAX_TICKET_LEVEL) { + return "ticket_level"; + } + + // are we being used by another chunk for generation? + if (this.totalNeighboursUsingThisChunk != 0) { + return "neighbours_generating"; + } + + // are we going to be used by another chunk for generation? + if (!this.neighboursWaitingForUs.isEmpty()) { + return "neighbours_waiting"; + } + + // chunk must be marked inaccessible (i.e. unloaded to plugins) + if (this.getChunkStatus() != FullChunkStatus.INACCESSIBLE) { + return "fullchunkstatus"; + } + + // are we currently generating anything, or have requested generation? + if (this.generationTask != null) { + return "generating"; + } + if (this.requestedGenStatus != null) { + return "requested_generation"; + } + + // entity data requested? + if (this.entityDataLoadTask != null) { + return "entity_data_requested"; + } + + // poi data requested? + if (this.poiDataLoadTask != null) { + return "poi_data_requested"; + } + + // are we pending serialization? + if (this.entityDataUnload != null) { + return "entity_serialization"; + } + if (this.poiDataUnload != null) { + return "poi_serialization"; + } + if (this.chunkDataUnload != null) { + return "chunk_serialization"; + } + + // Note: light tasks do not need a check, as they add a ticket. + + // nothing is using this chunk, so it should be unloaded + return null; + } + + /** Unloaded from chunk map */ + private boolean unloaded; + + void markUnloaded() { + this.unloaded = true; + } + + private boolean inUnloadQueue = false; + + void removeFromUnloadQueue() { + this.inUnloadQueue = false; + } + + // must hold scheduling lock + private void checkUnload() { + if (this.unloaded) { + return; + } + if (this.isSafeToUnload() == null) { + // ensure in unload queue + if (!this.inUnloadQueue) { + this.inUnloadQueue = true; + this.scheduler.chunkHolderManager.unloadQueue.addChunk(this.chunkX, this.chunkZ); + } + } else { + // ensure not in unload queue + if (this.inUnloadQueue) { + this.inUnloadQueue = false; + this.scheduler.chunkHolderManager.unloadQueue.removeChunk(this.chunkX, this.chunkZ); + } + } + } + + static final record UnloadState(NewChunkHolder holder, ChunkAccess chunk, ChunkEntitySlices entityChunk, PoiChunk poiChunk) {}; + + // note: these are completed with null to indicate that no write occurred + // they are also completed with null to indicate a null write occurred + private UnloadTask chunkDataUnload; + private UnloadTask entityDataUnload; + private UnloadTask poiDataUnload; + + public static final record UnloadTask(Completable completable, DelayedPrioritisedTask task) {} + + public UnloadTask getUnloadTask(final RegionFileIOThread.RegionFileType type) { + switch (type) { + case CHUNK_DATA: + return this.chunkDataUnload; + case ENTITY_DATA: + return this.entityDataUnload; + case POI_DATA: + return this.poiDataUnload; + default: + throw new IllegalStateException("Unknown regionfile type " + type); + } + } + + private void removeUnloadTask(final RegionFileIOThread.RegionFileType type) { + switch (type) { + case CHUNK_DATA: { + this.chunkDataUnload = null; + return; + } + case ENTITY_DATA: { + this.entityDataUnload = null; + return; + } + case POI_DATA: { + this.poiDataUnload = null; + return; + } + default: + throw new IllegalStateException("Unknown regionfile type " + type); + } + } + + private UnloadState unloadState; + + // holds schedule lock + UnloadState unloadStage1() { + // because we hold the scheduling lock, we cannot actually unload anything + // so, what we do here instead is to null this chunk's state and setup the unload tasks + // the unload tasks will ensure that any loads that take place after stage1 (i.e during stage2, in which + // we do not hold the lock) c + final ChunkAccess chunk = this.currentChunk; + final ChunkEntitySlices entityChunk = this.entityChunk; + final PoiChunk poiChunk = this.poiChunk; + // chunk state + this.currentChunk = null; + this.currentGenStatus = null; + this.lastChunkCompletion = null; + for (int i = 0; i < this.chunkCompletions.length; ++i) { + CHUNK_COMPLETION_ARRAY_HANDLE.setVolatile(this.chunkCompletions, i, (ChunkCompletion)null); + } + // entity chunk state + this.entityChunk = null; + this.pendingEntityChunk = null; + + // poi chunk state + this.poiChunk = null; + + // priority state + this.priorityLocked = false; + + if (chunk != null) { + this.chunkDataUnload = new UnloadTask(new Completable<>(), new DelayedPrioritisedTask(PrioritisedExecutor.Priority.NORMAL)); + } + if (poiChunk != null) { + this.poiDataUnload = new UnloadTask(new Completable<>(), null); + } + if (entityChunk != null) { + this.entityDataUnload = new UnloadTask(new Completable<>(), null); + } + + return this.unloadState = (chunk != null || entityChunk != null || poiChunk != null) ? new UnloadState(this, chunk, entityChunk, poiChunk) : null; + } + + // data is null if failed or does not need to be saved + void completeAsyncUnloadDataSave(final RegionFileIOThread.RegionFileType type, final CompoundTag data) { + if (data != null) { + RegionFileIOThread.scheduleSave(this.world, this.chunkX, this.chunkZ, data, type); + } + + this.getUnloadTask(type).completable().complete(data); + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + // can only write to these fields while holding the schedule lock + this.removeUnloadTask(type); + this.checkUnload(); + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + + void unloadStage2(final UnloadState state) { + this.unloadState = null; + final ChunkAccess chunk = state.chunk(); + final ChunkEntitySlices entityChunk = state.entityChunk(); + final PoiChunk poiChunk = state.poiChunk(); + + final boolean shouldLevelChunkNotSave = ChunkSystemFeatures.forceNoSave(chunk); + + // unload chunk data + if (chunk != null) { + if (chunk instanceof LevelChunk levelChunk) { + levelChunk.setLoaded(false); + } + + if (!shouldLevelChunkNotSave) { + this.saveChunk(chunk, true); + } else { + this.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, null); + } + + if (chunk instanceof LevelChunk levelChunk) { + this.world.unload(levelChunk); + } + } + + // unload entity data + if (entityChunk != null) { + this.saveEntities(entityChunk, true); + // yes this is a hack to pass the compound tag through... + final CompoundTag lastEntityUnload = this.lastEntityUnload; + this.lastEntityUnload = null; + + if (entityChunk.unload()) { + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + entityChunk.setTransient(true); + this.entityChunk = entityChunk; + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } else { + ((ChunkSystemServerLevel)this.world).moonrise$getEntityLookup().entitySectionUnload(this.chunkX, this.chunkZ); + } + // we need to delay the callback until after determining transience, otherwise a potential loader could + // set entityChunk before we do + this.entityDataUnload.completable().complete(lastEntityUnload); + } + + // unload poi data + if (poiChunk != null) { + if (poiChunk.isDirty() && !shouldLevelChunkNotSave) { + this.savePOI(poiChunk, true); + } else { + this.poiDataUnload.completable().complete(null); + } + + if (poiChunk.isLoaded()) { + ((ChunkSystemPoiManager)this.world.getPoiManager()).moonrise$onUnload(CoordinateUtils.getChunkKey(this.chunkX, this.chunkZ)); + } + } + } + + boolean unloadStage3() { + // can only write to these while holding the schedule lock, and we instantly complete them in stage2 + this.poiDataUnload = null; + this.entityDataUnload = null; + + // we need to check if anything has been loaded in the meantime (or if we have transient entities) + if (this.entityChunk != null || this.poiChunk != null || this.currentChunk != null) { + return false; + } + + return this.isSafeToUnload() == null; + } + + private void cancelGenTask() { + if (this.generationTask != null) { + this.generationTask.cancel(); + } else { + // otherwise, we are blocking on neighbours, so remove them + if (!this.neighboursBlockingGenTask.isEmpty()) { + for (final NewChunkHolder neighbour : this.neighboursBlockingGenTask) { + if (neighbour.neighboursWaitingForUs.remove(this) == null) { + throw new IllegalStateException("Corrupt state"); + } + if (neighbour.neighboursWaitingForUs.isEmpty()) { + neighbour.checkUnload(); + } + } + this.neighboursBlockingGenTask.clear(); + this.checkUnload(); + } + } + } + + // holds: ticket level update lock + // holds: schedule lock + public void processTicketLevelUpdate(final List scheduledTasks, final List changedLoadStatus) { + final int oldLevel = this.oldTicketLevel; + final int newLevel = this.currentTicketLevel; + + if (oldLevel == newLevel) { + return; + } + + this.oldTicketLevel = newLevel; + + final FullChunkStatus oldState = ChunkLevel.fullStatus(oldLevel); + final FullChunkStatus newState = ChunkLevel.fullStatus(newLevel); + final boolean oldUnloaded = oldLevel > ChunkHolderManager.MAX_TICKET_LEVEL; + final boolean newUnloaded = newLevel > ChunkHolderManager.MAX_TICKET_LEVEL; + + final ChunkStatus maxGenerationStatusOld = ChunkLevel.generationStatus(oldLevel); + final ChunkStatus maxGenerationStatusNew = ChunkLevel.generationStatus(newLevel); + + // check for cancellations from downgrading ticket level + if (this.requestedGenStatus != null && !newState.isOrAfter(FullChunkStatus.FULL) && newLevel > oldLevel) { + // note: cancel() may invoke onChunkGenComplete synchronously here + if (newUnloaded) { + // need to cancel all tasks + // note: requested status must be set to null here before cancellation, to indicate to the + // completion logic that we do not want rescheduling to occur + this.requestedGenStatus = null; + this.cancelGenTask(); + } else { + final ChunkStatus toCancel = ((ChunkSystemChunkStatus)maxGenerationStatusNew).moonrise$getNextStatus(); + final ChunkStatus currentRequestedStatus = this.requestedGenStatus; + + if (currentRequestedStatus.isOrAfter(toCancel)) { + // we do have to cancel something here + // clamp requested status to the maximum + if (this.currentGenStatus != null && this.currentGenStatus.isOrAfter(maxGenerationStatusNew)) { + // already generated to status, so we must cancel + this.requestedGenStatus = null; + this.cancelGenTask(); + } else { + // not generated to status, so we may have to cancel + // note: gen task is always 1 status above current gen status if not null + this.requestedGenStatus = maxGenerationStatusNew; + if (this.generationTaskStatus != null && this.generationTaskStatus.isOrAfter(toCancel)) { + // TOOD is this even possible? i don't think so + throw new IllegalStateException("?????"); + } + } + } + } + } + + if (oldState != newState) { + if (newState.isOrAfter(oldState)) { + // status upgrade + if (!oldState.isOrAfter(FullChunkStatus.FULL) && newState.isOrAfter(FullChunkStatus.FULL)) { + // may need to schedule full load + if (this.currentGenStatus != ChunkStatus.FULL) { + if (this.requestedGenStatus != null) { + this.requestedGenStatus = ChunkStatus.FULL; + } else { + this.scheduler.schedule( + this.chunkX, this.chunkZ, ChunkStatus.FULL, this, scheduledTasks + ); + } + } + } + } else { + // status downgrade + if (!newState.isOrAfter(FullChunkStatus.ENTITY_TICKING) && oldState.isOrAfter(FullChunkStatus.ENTITY_TICKING)) { + this.completeFullStatusConsumers(FullChunkStatus.ENTITY_TICKING, null); + } + + if (!newState.isOrAfter(FullChunkStatus.BLOCK_TICKING) && oldState.isOrAfter(FullChunkStatus.BLOCK_TICKING)) { + this.completeFullStatusConsumers(FullChunkStatus.BLOCK_TICKING, null); + } + + if (!newState.isOrAfter(FullChunkStatus.FULL) && oldState.isOrAfter(FullChunkStatus.FULL)) { + this.completeFullStatusConsumers(FullChunkStatus.FULL, null); + } + } + + if (this.updatePendingStatus()) { + changedLoadStatus.add(this); + } + } + + if (oldUnloaded != newUnloaded) { + this.checkUnload(); + } + } + + static final int NEIGHBOUR_RADIUS = 2; + private long fullNeighbourChunksLoadedBitset; + + private static int getFullNeighbourIndex(final int relativeX, final int relativeZ) { + // index = (relativeX + NEIGHBOUR_CACHE_RADIUS) + (relativeZ + NEIGHBOUR_CACHE_RADIUS) * (NEIGHBOUR_CACHE_RADIUS * 2 + 1) + // optimised variant of the above by moving some of the ops to compile time + return relativeX + (relativeZ * (NEIGHBOUR_RADIUS * 2 + 1)) + (NEIGHBOUR_RADIUS + NEIGHBOUR_RADIUS * ((NEIGHBOUR_RADIUS * 2 + 1))); + } + public final boolean isNeighbourFullLoaded(final int relativeX, final int relativeZ) { + return (this.fullNeighbourChunksLoadedBitset & (1L << getFullNeighbourIndex(relativeX, relativeZ))) != 0; + } + + // returns true if this chunk changed pending full status + // must hold scheduling lock + public final boolean setNeighbourFullLoaded(final int relativeX, final int relativeZ) { + final int index = getFullNeighbourIndex(relativeX, relativeZ); + this.fullNeighbourChunksLoadedBitset |= (1L << index); + return this.updatePendingStatus(); + } + + // returns true if this chunk changed pending full status + // must hold scheduling lock + public final boolean setNeighbourFullUnloaded(final int relativeX, final int relativeZ) { + final int index = getFullNeighbourIndex(relativeX, relativeZ); + this.fullNeighbourChunksLoadedBitset &= ~(1L << index); + return this.updatePendingStatus(); + } + + private static long getLoadedMask(final int radius) { + long mask = 0L; + for (int dx = -radius; dx <= radius; ++dx) { + for (int dz = -radius; dz <= radius; ++dz) { + mask |= (1L << getFullNeighbourIndex(dx, dz)); + } + } + + return mask; + } + + private static final long CHUNK_LOADED_MASK_RAD0 = getLoadedMask(0); + private static final long CHUNK_LOADED_MASK_RAD1 = getLoadedMask(1); + private static final long CHUNK_LOADED_MASK_RAD2 = getLoadedMask(2); + + public static boolean areNeighboursFullLoaded(final long bitset, final int radius) { + switch (radius) { + case 0: { + return (bitset & CHUNK_LOADED_MASK_RAD0) == CHUNK_LOADED_MASK_RAD0; + } + case 1: { + return (bitset & CHUNK_LOADED_MASK_RAD1) == CHUNK_LOADED_MASK_RAD1; + } + case 2: { + return (bitset & CHUNK_LOADED_MASK_RAD2) == CHUNK_LOADED_MASK_RAD2; + } + + default: { + throw new IllegalArgumentException("Radius not recognized: " + radius); + } + } + } + + // only updated while holding scheduling lock + private FullChunkStatus pendingFullChunkStatus = FullChunkStatus.INACCESSIBLE; + // updated while holding no locks, but adds a ticket before to prevent pending status from dropping + // so, current will never update to a value higher than pending + private FullChunkStatus currentFullChunkStatus = FullChunkStatus.INACCESSIBLE; + + public FullChunkStatus getChunkStatus() { + // no volatile access, access off-main is considered racey anyways + return this.currentFullChunkStatus; + } + + public boolean isEntityTickingReady() { + return this.getChunkStatus().isOrAfter(FullChunkStatus.ENTITY_TICKING); + } + + public boolean isTickingReady() { + return this.getChunkStatus().isOrAfter(FullChunkStatus.BLOCK_TICKING); + } + + public boolean isFullChunkReady() { + return this.getChunkStatus().isOrAfter(FullChunkStatus.FULL); + } + + private static FullChunkStatus getStatusForBitset(final long bitset) { + if ((bitset & CHUNK_LOADED_MASK_RAD2) == CHUNK_LOADED_MASK_RAD2) { + return FullChunkStatus.ENTITY_TICKING; + } else if ((bitset & CHUNK_LOADED_MASK_RAD1) == CHUNK_LOADED_MASK_RAD1) { + return FullChunkStatus.BLOCK_TICKING; + } else if ((bitset & CHUNK_LOADED_MASK_RAD0) == CHUNK_LOADED_MASK_RAD0) { + return FullChunkStatus.FULL; + } else { + return FullChunkStatus.INACCESSIBLE; + } + } + + // must hold scheduling lock + // returns whether the pending status was changed + private boolean updatePendingStatus() { + final FullChunkStatus byTicketLevel = ChunkLevel.fullStatus(this.oldTicketLevel); // oldTicketLevel is controlled by scheduling lock + + FullChunkStatus pending = getStatusForBitset(this.fullNeighbourChunksLoadedBitset); + if (pending == FullChunkStatus.INACCESSIBLE && byTicketLevel.isOrAfter(FullChunkStatus.FULL) && this.currentGenStatus == ChunkStatus.FULL) { + // the bitset is only for chunks that have gone through the status updater + // but here we are ready to go to FULL + pending = FullChunkStatus.FULL; + } + + if (pending.isOrAfter(byTicketLevel)) { // pending >= byTicketLevel + // cannot set above ticket level + pending = byTicketLevel; + } + + if (this.pendingFullChunkStatus == pending) { + return false; + } + + this.pendingFullChunkStatus = pending; + + return true; + } + + private void onFullChunkLoadChange(final boolean loaded, final List changedFullStatus) { + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ, NEIGHBOUR_RADIUS); + try { + for (int dz = -NEIGHBOUR_RADIUS; dz <= NEIGHBOUR_RADIUS; ++dz) { + for (int dx = -NEIGHBOUR_RADIUS; dx <= NEIGHBOUR_RADIUS; ++dx) { + final NewChunkHolder holder = (dx | dz) == 0 ? this : this.scheduler.chunkHolderManager.getChunkHolder(dx + this.chunkX, dz + this.chunkZ); + if (loaded) { + if (holder.setNeighbourFullLoaded(-dx, -dz)) { + changedFullStatus.add(holder); + } + } else { + if (holder != null && holder.setNeighbourFullUnloaded(-dx, -dz)) { + changedFullStatus.add(holder); + } + } + } + } + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + + private void changeEntityChunkStatus(final FullChunkStatus toStatus) { + ((ChunkSystemServerLevel)this.world).moonrise$getEntityLookup().chunkStatusChange(this.chunkX, this.chunkZ, toStatus); + } + + private boolean processingFullStatus = false; + + private void updateCurrentState(final FullChunkStatus to) { + this.currentFullChunkStatus = to; + } + + // only to be called on the main thread, no locks need to be held + public boolean handleFullStatusChange(final List changedFullStatus) { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, this.chunkX, this.chunkZ, "Cannot update full status thread off-main"); + + boolean ret = false; + + if (this.processingFullStatus) { + // we cannot process updates recursively, as we may be in the middle of logic to upgrade/downgrade status + return ret; + } + + this.processingFullStatus = true; + try { + for (;;) { + // check if we have any remaining work to do + + // we do not need to hold the scheduling lock to read pending, as changes to pending + // will queue a status update + + final FullChunkStatus pending = this.pendingFullChunkStatus; + FullChunkStatus current = this.currentFullChunkStatus; + + if (pending == current) { + if (pending == FullChunkStatus.INACCESSIBLE) { + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + this.checkUnload(); + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + } + return ret; + } + + ret = true; + + // note: because the chunk system delays any ticket downgrade to the chunk holder manager tick, we + // do not need to consider cases where the ticket level may decrease during this call by asynchronous + // ticket changes + + // chunks cannot downgrade state while status is pending a change + // note: currentChunk must be LevelChunk, as current != pending which means that at least one is not ACCESSIBLE + final LevelChunk chunk = (LevelChunk)this.currentChunk; + + // Note: we assume that only load/unload contain plugin logic + // plugin logic is anything stupid enough to possibly change the chunk status while it is already + // being changed (i.e during load it is possible it will try to set to full ticking) + // in order to allow this change, we also need this plugin logic to be contained strictly after all + // of the chunk system load callbacks are invoked + if (pending.isOrAfter(current)) { + // state upgrade + if (!current.isOrAfter(FullChunkStatus.FULL) && pending.isOrAfter(FullChunkStatus.FULL)) { + this.updateCurrentState(FullChunkStatus.FULL); + this.scheduler.chunkHolderManager.ensureInAutosave(this); + this.changeEntityChunkStatus(FullChunkStatus.FULL); + ChunkSystem.onChunkBorder(chunk, this.vanillaChunkHolder); + this.onFullChunkLoadChange(true, changedFullStatus); + this.completeFullStatusConsumers(FullChunkStatus.FULL, chunk); + } + + if (!current.isOrAfter(FullChunkStatus.BLOCK_TICKING) && pending.isOrAfter(FullChunkStatus.BLOCK_TICKING)) { + this.updateCurrentState(FullChunkStatus.BLOCK_TICKING); + this.changeEntityChunkStatus(FullChunkStatus.BLOCK_TICKING); + ChunkSystem.onChunkTicking(chunk, this.vanillaChunkHolder); + this.completeFullStatusConsumers(FullChunkStatus.BLOCK_TICKING, chunk); + } + + if (!current.isOrAfter(FullChunkStatus.ENTITY_TICKING) && pending.isOrAfter(FullChunkStatus.ENTITY_TICKING)) { + this.updateCurrentState(FullChunkStatus.ENTITY_TICKING); + this.changeEntityChunkStatus(FullChunkStatus.ENTITY_TICKING); + ChunkSystem.onChunkEntityTicking(chunk, this.vanillaChunkHolder); + this.completeFullStatusConsumers(FullChunkStatus.ENTITY_TICKING, chunk); + } + } else { + if (current.isOrAfter(FullChunkStatus.ENTITY_TICKING) && !pending.isOrAfter(FullChunkStatus.ENTITY_TICKING)) { + this.changeEntityChunkStatus(FullChunkStatus.BLOCK_TICKING); + ChunkSystem.onChunkNotEntityTicking(chunk, this.vanillaChunkHolder); + this.updateCurrentState(FullChunkStatus.BLOCK_TICKING); + } + + if (current.isOrAfter(FullChunkStatus.BLOCK_TICKING) && !pending.isOrAfter(FullChunkStatus.BLOCK_TICKING)) { + this.changeEntityChunkStatus(FullChunkStatus.FULL); + ChunkSystem.onChunkNotTicking(chunk, this.vanillaChunkHolder); + this.updateCurrentState(FullChunkStatus.FULL); + } + + if (current.isOrAfter(FullChunkStatus.FULL) && !pending.isOrAfter(FullChunkStatus.FULL)) { + this.onFullChunkLoadChange(false, changedFullStatus); + this.changeEntityChunkStatus(FullChunkStatus.INACCESSIBLE); + ChunkSystem.onChunkNotBorder(chunk, this.vanillaChunkHolder); + this.updateCurrentState(FullChunkStatus.INACCESSIBLE); + } + } + } + } finally { + this.processingFullStatus = false; + } + } + + // note: must hold scheduling lock + // rets true if the current requested gen status is not null (effectively, whether further scheduling is not needed) + boolean upgradeGenTarget(final ChunkStatus toStatus) { + if (toStatus == null) { + throw new NullPointerException("toStatus cannot be null"); + } + if (this.requestedGenStatus == null && this.generationTask == null) { + return false; + } + if (this.requestedGenStatus == null || !this.requestedGenStatus.isOrAfter(toStatus)) { + this.requestedGenStatus = toStatus; + } + return true; + } + + public void setGenerationTarget(final ChunkStatus toStatus) { + this.requestedGenStatus = toStatus; + } + + public boolean hasGenerationTask() { + return this.generationTask != null; + } + + public ChunkStatus getCurrentGenStatus() { + return this.currentGenStatus; + } + + public ChunkStatus getRequestedGenStatus() { + return this.requestedGenStatus; + } + + private final Reference2ObjectOpenHashMap>> statusWaiters = new Reference2ObjectOpenHashMap<>(); + + void addStatusConsumer(final ChunkStatus status, final Consumer consumer) { + this.statusWaiters.computeIfAbsent(status, (final ChunkStatus keyInMap) -> { + return new ArrayList<>(4); + }).add(consumer); + } + + private void completeStatusConsumers(ChunkStatus status, final ChunkAccess chunk) { + // need to tell future statuses to complete if cancelled + do { + this.completeStatusConsumers0(status, chunk); + } while (chunk == null && status != (status = ((ChunkSystemChunkStatus)status).moonrise$getNextStatus())); + } + + private void completeStatusConsumers0(final ChunkStatus status, final ChunkAccess chunk) { + final List> consumers; + consumers = this.statusWaiters.remove(status); + + if (consumers == null) { + return; + } + + // must be scheduled to main, we do not trust the callback to not do anything stupid + this.scheduler.scheduleChunkTask(this.chunkX, this.chunkZ, () -> { + for (final Consumer consumer : consumers) { + try { + consumer.accept(chunk); + } catch (final Throwable thr) { + LOGGER.error("Failed to process chunk status callback", thr); + } + } + }, PrioritisedExecutor.Priority.HIGHEST); + } + + private final Reference2ObjectOpenHashMap>> fullStatusWaiters = new Reference2ObjectOpenHashMap<>(); + + void addFullStatusConsumer(final FullChunkStatus status, final Consumer consumer) { + this.fullStatusWaiters.computeIfAbsent(status, (final FullChunkStatus keyInMap) -> { + return new ArrayList<>(4); + }).add(consumer); + } + + private void completeFullStatusConsumers(FullChunkStatus status, final LevelChunk chunk) { + final List> consumers; + consumers = this.fullStatusWaiters.remove(status); + + if (consumers == null) { + return; + } + + // must be scheduled to main, we do not trust the callback to not do anything stupid + this.scheduler.scheduleChunkTask(this.chunkX, this.chunkZ, () -> { + for (final Consumer consumer : consumers) { + try { + consumer.accept(chunk); + } catch (final Throwable thr) { + LOGGER.error("Failed to process chunk status callback", thr); + } + } + }, PrioritisedExecutor.Priority.HIGHEST); + } + + // note: must hold scheduling lock + private void onChunkGenComplete(final ChunkAccess newChunk, final ChunkStatus newStatus, + final List scheduleList, final List changedLoadStatus) { + if (!this.neighboursBlockingGenTask.isEmpty()) { + throw new IllegalStateException("Cannot have neighbours blocking this gen task"); + } + if (newChunk != null || (this.requestedGenStatus == null || !this.requestedGenStatus.isOrAfter(newStatus))) { + this.completeStatusConsumers(newStatus, newChunk); + } + // done now, clear state (must be done before scheduling new tasks) + this.generationTask = null; + this.generationTaskStatus = null; + if (newChunk == null) { + // task was cancelled + // should be careful as this could be called while holding the schedule lock and/or inside the + // ticket level update + // while a task may be cancelled, it is possible for it to be later re-scheduled + // however, because generationTask is only set to null on _completion_, the scheduler leaves + // the rescheduling logic to us here + final ChunkStatus requestedGenStatus = this.requestedGenStatus; + this.requestedGenStatus = null; + if (requestedGenStatus != null) { + // it looks like it has been requested, so we must reschedule + if (!this.neighboursWaitingForUs.isEmpty()) { + for (final Iterator> iterator = this.neighboursWaitingForUs.reference2ObjectEntrySet().fastIterator(); iterator.hasNext();) { + final Reference2ObjectMap.Entry entry = iterator.next(); + + final NewChunkHolder chunkHolder = entry.getKey(); + final ChunkStatus toStatus = entry.getValue(); + + if (!requestedGenStatus.isOrAfter(toStatus)) { + // if we were cancelled, we are responsible for removing the waiter + if (!chunkHolder.neighboursBlockingGenTask.remove(this)) { + throw new IllegalStateException("Corrupt state"); + } + if (chunkHolder.neighboursBlockingGenTask.isEmpty()) { + chunkHolder.checkUnload(); + } + iterator.remove(); + continue; + } + } + } + + // note: only after generationTask -> null, generationTaskStatus -> null, and requestedGenStatus -> null + this.scheduler.schedule( + this.chunkX, this.chunkZ, requestedGenStatus, this, scheduleList + ); + + // return, can't do anything further + return; + } + + if (!this.neighboursWaitingForUs.isEmpty()) { + for (final NewChunkHolder chunkHolder : this.neighboursWaitingForUs.keySet()) { + if (!chunkHolder.neighboursBlockingGenTask.remove(this)) { + throw new IllegalStateException("Corrupt state"); + } + if (chunkHolder.neighboursBlockingGenTask.isEmpty()) { + chunkHolder.checkUnload(); + } + } + this.neighboursWaitingForUs.clear(); + } + // reset priority, we have nothing left to generate to + this.setPriority(null); + this.checkUnload(); + return; + } + + this.currentChunk = newChunk; + this.currentGenStatus = newStatus; + final ChunkCompletion completion = new ChunkCompletion(newChunk, newStatus); + CHUNK_COMPLETION_ARRAY_HANDLE.setVolatile(this.chunkCompletions, newStatus.getIndex(), completion); + this.lastChunkCompletion = completion; + + final ChunkStatus requestedGenStatus = this.requestedGenStatus; + + List needsScheduling = null; + boolean recalculatePriority = false; + for (final Iterator> iterator + = this.neighboursWaitingForUs.reference2ObjectEntrySet().fastIterator(); iterator.hasNext();) { + final Reference2ObjectMap.Entry entry = iterator.next(); + final NewChunkHolder neighbour = entry.getKey(); + final ChunkStatus requiredStatus = entry.getValue(); + + if (!newStatus.isOrAfter(requiredStatus)) { + if (requestedGenStatus == null || !requestedGenStatus.isOrAfter(requiredStatus)) { + // if we're cancelled, still need to clear this map + if (!neighbour.neighboursBlockingGenTask.remove(this)) { + throw new IllegalStateException("Neighbour is not waiting for us?"); + } + if (neighbour.neighboursBlockingGenTask.isEmpty()) { + neighbour.checkUnload(); + } + + iterator.remove(); + } + continue; + } + + // doesn't matter what isCancelled is here, we need to schedule if we can + + recalculatePriority = true; + if (!neighbour.neighboursBlockingGenTask.remove(this)) { + throw new IllegalStateException("Neighbour is not waiting for us?"); + } + + if (neighbour.neighboursBlockingGenTask.isEmpty()) { + if (neighbour.requestedGenStatus != null) { + if (needsScheduling == null) { + needsScheduling = new ArrayList<>(); + } + needsScheduling.add(neighbour); + } else { + neighbour.checkUnload(); + } + } + + // remove last; access to entry will throw if removed + iterator.remove(); + } + + if (newStatus == ChunkStatus.FULL) { + this.lockPriority(); + // try to push pending to FULL + if (this.updatePendingStatus()) { + changedLoadStatus.add(this); + } + } + + if (recalculatePriority) { + this.recalculateNeighbourRequestedPriority(); + } + + if (requestedGenStatus != null && !newStatus.isOrAfter(requestedGenStatus)) { + this.scheduleNeighbours(needsScheduling, scheduleList); + + // we need to schedule more tasks now + this.scheduler.schedule( + this.chunkX, this.chunkZ, requestedGenStatus, this, scheduleList + ); + } else { + // we're done now + if (requestedGenStatus != null) { + this.requestedGenStatus = null; + } + // reached final stage, so stop scheduling now + this.setPriority(null); + this.checkUnload(); + + this.scheduleNeighbours(needsScheduling, scheduleList); + } + } + + private void scheduleNeighbours(final List needsScheduling, final List scheduleList) { + if (needsScheduling != null) { + for (int i = 0, len = needsScheduling.size(); i < len; ++i) { + final NewChunkHolder neighbour = needsScheduling.get(i); + + this.scheduler.schedule( + neighbour.chunkX, neighbour.chunkZ, neighbour.requestedGenStatus, neighbour, scheduleList + ); + } + } + } + + public void setGenerationTask(final ChunkProgressionTask generationTask, final ChunkStatus taskStatus, + final List neighbours) { + if (this.generationTask != null || (this.currentGenStatus != null && this.currentGenStatus.isOrAfter(taskStatus))) { + throw new IllegalStateException("Currently generating or provided task is trying to generate to a level we are already at!"); + } + if (this.requestedGenStatus == null || !this.requestedGenStatus.isOrAfter(taskStatus)) { + throw new IllegalStateException("Cannot schedule generation task when not requested"); + } + this.generationTask = generationTask; + this.generationTaskStatus = taskStatus; + + for (int i = 0, len = neighbours.size(); i < len; ++i) { + neighbours.get(i).addNeighbourUsingChunk(); + } + + this.checkUnload(); + + generationTask.onComplete((final ChunkAccess access, final Throwable thr) -> { + if (generationTask != this.generationTask) { + throw new IllegalStateException( + "Cannot complete generation task '" + generationTask + "' because we are waiting on '" + this.generationTask + "' instead!" + ); + } + if (thr != null) { + if (this.genTaskException != null) { + LOGGER.warn("Ignoring exception for " + this.toString(), thr); + return; + } + // don't set generation task to null, so that scheduling will not attempt to create another task and it + // will automatically block any further scheduling usage of this chunk as it will wait forever for a failed + // task to complete + this.genTaskException = thr; + this.failedGenStatus = taskStatus; + this.genTaskFailedThread = Thread.currentThread(); + + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Generation task", ChunkTaskScheduler.stringIfNull(generationTask), + "Task to status", ChunkTaskScheduler.stringIfNull(taskStatus) + ), thr); + return; + } + + final boolean scheduleTasks; + List tasks = ChunkHolderManager.getCurrentTicketUpdateScheduling(); + if (tasks == null) { + scheduleTasks = true; + tasks = new ArrayList<>(); + } else { + scheduleTasks = false; + // we are currently updating ticket levels, so we already hold the schedule lock + // this means we have to leave the ticket level update to handle the scheduling + } + final List changedLoadStatus = new ArrayList<>(); + // theoretically, we could schedule a chunk at the max radius which performs another max radius access. So we need to double the radius. + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ, 2 * ChunkTaskScheduler.getMaxAccessRadius()); + try { + for (int i = 0, len = neighbours.size(); i < len; ++i) { + neighbours.get(i).removeNeighbourUsingChunk(); + } + this.onChunkGenComplete(access, taskStatus, tasks, changedLoadStatus); + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + this.scheduler.chunkHolderManager.addChangedStatuses(changedLoadStatus); + + if (scheduleTasks) { + // can't hold the lock while scheduling, so we have to build the tasks and then schedule after + for (int i = 0, len = tasks.size(); i < len; ++i) { + tasks.get(i).schedule(); + } + } + }); + } + + public PoiChunk getPoiChunk() { + return this.poiChunk; + } + + public ChunkEntitySlices getEntityChunk() { + return this.entityChunk; + } + + public long lastAutoSave; + + public static final record SaveStat(boolean savedChunk, boolean savedEntityChunk, boolean savedPoiChunk) {} + + public SaveStat save(final boolean shutdown) { + io.papermc.paper.util.TickThread.ensureTickThread(this.world, this.chunkX, this.chunkZ, "Cannot save data off-main"); + + ChunkAccess chunk = this.getCurrentChunk(); + PoiChunk poi = this.getPoiChunk(); + ChunkEntitySlices entities = this.getEntityChunk(); + boolean executedUnloadTask = false; + + if (shutdown) { + // make sure that the async unloads complete + if (this.unloadState != null) { + // must have errored during unload + chunk = this.unloadState.chunk(); + poi = this.unloadState.poiChunk(); + entities = this.unloadState.entityChunk(); + } + final UnloadTask chunkUnloadTask = this.chunkDataUnload; + final DelayedPrioritisedTask chunkDataUnloadTask = chunkUnloadTask == null ? null : chunkUnloadTask.task(); + if (chunkDataUnloadTask != null) { + final PrioritisedExecutor.PrioritisedTask unloadTask = chunkDataUnloadTask.getTask(); + if (unloadTask != null) { + executedUnloadTask = unloadTask.execute(); + } + } + } + + final boolean forceNoSaveChunk = ChunkSystemFeatures.forceNoSave(chunk); + + // can only synchronously save worldgen chunks during shutdown + boolean canSaveChunk = !forceNoSaveChunk && (chunk != null && ((shutdown || chunk instanceof LevelChunk) && chunk.isUnsaved())); + boolean canSavePOI = !forceNoSaveChunk && (poi != null && poi.isDirty()); + boolean canSaveEntities = entities != null; + + if (canSaveChunk) { + canSaveChunk = this.saveChunk(chunk, false); + } + if (canSavePOI) { + canSavePOI = this.savePOI(poi, false); + } + if (canSaveEntities) { + // on shutdown, we need to force transient entity chunks to save + canSaveEntities = this.saveEntities(entities, shutdown); + if (shutdown) { + this.lastEntityUnload = null; + } + } + + return executedUnloadTask | canSaveChunk | canSaveEntities | canSavePOI ? new SaveStat(executedUnloadTask || canSaveChunk, canSaveEntities, canSavePOI): null; + } + + static final class AsyncChunkSerializeTask implements Runnable { + + private final ServerLevel world; + private final ChunkAccess chunk; + private final AsyncChunkSaveData asyncSaveData; + private final NewChunkHolder toComplete; + + public AsyncChunkSerializeTask(final ServerLevel world, final ChunkAccess chunk, final AsyncChunkSaveData asyncSaveData, + final NewChunkHolder toComplete) { + this.world = world; + this.chunk = chunk; + this.asyncSaveData = asyncSaveData; + this.toComplete = toComplete; + } + + @Override + public void run() { + final CompoundTag toSerialize; + try { + toSerialize = ChunkSystemFeatures.saveChunkAsync(this.world, this.chunk, this.asyncSaveData); + } catch (final Throwable throwable) { + LOGGER.error("Failed to asynchronously save chunk " + this.chunk.getPos() + " for world '" + WorldUtil.getWorldName(this.world) + "', falling back to synchronous save", throwable); + final ChunkPos pos = this.chunk.getPos(); + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().scheduleChunkTask(pos.x, pos.z, () -> { + final CompoundTag synchronousSave; + try { + synchronousSave = ChunkSystemFeatures.saveChunkAsync(AsyncChunkSerializeTask.this.world, AsyncChunkSerializeTask.this.chunk, AsyncChunkSerializeTask.this.asyncSaveData); + } catch (final Throwable throwable2) { + LOGGER.error("Failed to synchronously save chunk " + AsyncChunkSerializeTask.this.chunk.getPos() + " for world '" + WorldUtil.getWorldName(AsyncChunkSerializeTask.this.world) + "', chunk data will be lost", throwable2); + AsyncChunkSerializeTask.this.toComplete.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, null); + return; + } + + AsyncChunkSerializeTask.this.toComplete.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, synchronousSave); + LOGGER.info("Successfully serialized chunk " + AsyncChunkSerializeTask.this.chunk.getPos() + " for world '" + WorldUtil.getWorldName(AsyncChunkSerializeTask.this.world) + "' synchronously"); + + }, PrioritisedExecutor.Priority.HIGHEST); + return; + } + this.toComplete.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, toSerialize); + } + + @Override + public String toString() { + return "AsyncChunkSerializeTask{" + + "chunk={pos=" + this.chunk.getPos() + ",world=\"" + WorldUtil.getWorldName(this.world) + "\"}" + + "}"; + } + } + + private boolean saveChunk(final ChunkAccess chunk, final boolean unloading) { + if (!chunk.isUnsaved()) { + if (unloading) { + this.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, null); + } + return false; + } + boolean completing = false; + boolean failedAsyncPrepare = false; + try { + if (unloading && ChunkSystemFeatures.supportsAsyncChunkSave()) { + try { + final AsyncChunkSaveData asyncSaveData = ChunkSystemFeatures.getAsyncSaveData(this.world, chunk); + + final PrioritisedExecutor.PrioritisedTask task = this.scheduler.loadExecutor.createTask(new AsyncChunkSerializeTask(this.world, chunk, asyncSaveData, this)); + + this.chunkDataUnload.task().setTask(task); + + chunk.setUnsaved(false); + + task.queue(); + + return true; + } catch (final Throwable thr) { + LOGGER.error("Failed to prepare async chunk data (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "', falling back to synchronous save", thr); + failedAsyncPrepare = true; + // fall through to synchronous save + } + } + + final CompoundTag save = ChunkSerializer.write(this.world, chunk); + + if (unloading) { + completing = true; + this.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, save); + if (failedAsyncPrepare) { + LOGGER.info("Successfully serialized chunk data (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "' synchronously"); + } + } else { + RegionFileIOThread.scheduleSave(this.world, this.chunkX, this.chunkZ, save, RegionFileIOThread.RegionFileType.CHUNK_DATA); + } + chunk.setUnsaved(false); + } catch (final Throwable thr) { + LOGGER.error("Failed to save chunk data (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "'"); + if (unloading && !completing) { + this.completeAsyncUnloadDataSave(RegionFileIOThread.RegionFileType.CHUNK_DATA, null); + } + } + + return true; + } + + private boolean lastEntitySaveNull; + private CompoundTag lastEntityUnload; + private boolean saveEntities(final ChunkEntitySlices entities, final boolean unloading) { + try { + CompoundTag mergeFrom = null; + if (entities.isTransient()) { + if (!unloading) { + // if we're a transient chunk, we cannot save until unloading because otherwise a double save will + // result in double adding the entities + return false; + } + try { + mergeFrom = RegionFileIOThread.loadData(this.world, this.chunkX, this.chunkZ, RegionFileIOThread.RegionFileType.ENTITY_DATA, PrioritisedExecutor.Priority.BLOCKING); + } catch (final Exception ex) { + LOGGER.error("Cannot merge transient entities for chunk (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "', data on disk will be replaced", ex); + } + } + + final CompoundTag save = entities.save(); + if (mergeFrom != null) { + if (save == null) { + // don't override the data on disk with nothing + return false; + } else { + ChunkEntitySlices.copyEntities(mergeFrom, save); + } + } + if (save == null && this.lastEntitySaveNull) { + return false; + } + + RegionFileIOThread.scheduleSave(this.world, this.chunkX, this.chunkZ, save, RegionFileIOThread.RegionFileType.ENTITY_DATA); + this.lastEntitySaveNull = save == null; + if (unloading) { + this.lastEntityUnload = save; + } + } catch (final Throwable thr) { + LOGGER.error("Failed to save entity data (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "'"); + } + + return true; + } + + private boolean lastPoiSaveNull; + private boolean savePOI(final PoiChunk poi, final boolean unloading) { + try { + final CompoundTag save = poi.save(); + poi.setDirty(false); + if (save == null && this.lastPoiSaveNull) { + if (unloading) { + this.poiDataUnload.completable().complete(null); + } + return false; + } + + RegionFileIOThread.scheduleSave(this.world, this.chunkX, this.chunkZ, save, RegionFileIOThread.RegionFileType.POI_DATA); + this.lastPoiSaveNull = save == null; + if (unloading) { + this.poiDataUnload.completable().complete(save); + } + } catch (final Throwable thr) { + LOGGER.error("Failed to save poi data (" + this.chunkX + "," + this.chunkZ + ") in world '" + WorldUtil.getWorldName(this.world) + "'"); + } + + return true; + } + + @Override + public String toString() { + final ChunkCompletion lastCompletion = this.lastChunkCompletion; + final ChunkEntitySlices entityChunk = this.entityChunk; + final FullChunkStatus pendingFullStatus = this.pendingFullChunkStatus; + final FullChunkStatus currentFullStatus = this.currentFullChunkStatus; + return "NewChunkHolder{" + + "world=" + WorldUtil.getWorldName(this.world) + + ", chunkX=" + this.chunkX + + ", chunkZ=" + this.chunkZ + + ", entityChunkFromDisk=" + (entityChunk != null && !entityChunk.isTransient()) + + ", lastChunkCompletion={chunk_class=" + (lastCompletion == null || lastCompletion.chunk() == null ? "null" : lastCompletion.chunk().getClass().getName()) + ",status=" + (lastCompletion == null ? "null" : lastCompletion.genStatus()) + "}" + + ", currentGenStatus=" + this.currentGenStatus + + ", requestedGenStatus=" + this.requestedGenStatus + + ", generationTask=" + this.generationTask + + ", generationTaskStatus=" + this.generationTaskStatus + + ", priority=" + this.priority + + ", priorityLocked=" + this.priorityLocked + + ", neighbourRequestedPriority=" + this.neighbourRequestedPriority + + ", effective_priority=" + this.getEffectivePriority(null) + + ", oldTicketLevel=" + this.oldTicketLevel + + ", currentTicketLevel=" + this.currentTicketLevel + + ", totalNeighboursUsingThisChunk=" + this.totalNeighboursUsingThisChunk + + ", fullNeighbourChunksLoadedBitset=" + this.fullNeighbourChunksLoadedBitset + + ", currentChunkStatus=" + currentFullStatus + + ", pendingChunkStatus=" + pendingFullStatus + + ", is_unload_safe=" + this.isSafeToUnload() + + ", killed=" + this.unloaded + + '}'; + } + + private static JsonElement serializeStacktraceElement(final StackTraceElement element) { + return element == null ? JsonNull.INSTANCE : new JsonPrimitive(element.toString()); + } + + private static JsonObject serializeCompletable(final Completable completable) { + final JsonObject ret = new JsonObject(); + + if (completable == null) { + return ret; + } + + ret.addProperty("valid", Boolean.TRUE); + + final boolean isCompleted = completable.isCompleted(); + ret.addProperty("completed", Boolean.valueOf(isCompleted)); + + if (isCompleted) { + final Throwable throwable = completable.getThrowable(); + if (throwable != null) { + final JsonArray throwableJson = new JsonArray(); + ret.add("throwable", throwableJson); + + for (final StackTraceElement element : throwable.getStackTrace()) { + throwableJson.add(serializeStacktraceElement(element)); + } + } else { + final Object result = completable.getResult(); + ret.add("result_class", result == null ? JsonNull.INSTANCE : new JsonPrimitive(result.getClass().getName())); + } + } + + return ret; + } + + // (probably) holds ticket and scheduling lock + public JsonObject getDebugJson() { + final JsonObject ret = new JsonObject(); + + final ChunkCompletion lastCompletion = this.lastChunkCompletion; + final ChunkEntitySlices slices = this.entityChunk; + final PoiChunk poiChunk = this.poiChunk; + + ret.addProperty("chunkX", Integer.valueOf(this.chunkX)); + ret.addProperty("chunkZ", Integer.valueOf(this.chunkZ)); + ret.addProperty("entity_chunk", slices == null ? "null" : "transient=" + slices.isTransient()); + ret.addProperty("poi_chunk", "null=" + (poiChunk == null)); + ret.addProperty("completed_chunk_class", lastCompletion == null ? "null" : lastCompletion.chunk().getClass().getName()); + ret.addProperty("completed_gen_status", lastCompletion == null ? "null" : lastCompletion.genStatus().toString()); + ret.addProperty("priority", Objects.toString(this.priority)); + ret.addProperty("neighbour_requested_priority", Objects.toString(this.neighbourRequestedPriority)); + ret.addProperty("generation_task", Objects.toString(this.generationTask)); + ret.addProperty("is_safe_unload", Objects.toString(this.isSafeToUnload())); + ret.addProperty("old_ticket_level", Integer.valueOf(this.oldTicketLevel)); + ret.addProperty("current_ticket_level", Integer.valueOf(this.currentTicketLevel)); + ret.addProperty("neighbours_using_chunk", Integer.valueOf(this.totalNeighboursUsingThisChunk)); + + final JsonObject neighbourWaitState = new JsonObject(); + ret.add("neighbour_state", neighbourWaitState); + + final JsonArray blockingGenNeighbours = new JsonArray(); + neighbourWaitState.add("blocking_gen_task", blockingGenNeighbours); + for (final NewChunkHolder blockingGenNeighbour : this.neighboursBlockingGenTask) { + final JsonObject neighbour = new JsonObject(); + blockingGenNeighbours.add(neighbour); + + neighbour.addProperty("chunkX", Integer.valueOf(blockingGenNeighbour.chunkX)); + neighbour.addProperty("chunkZ", Integer.valueOf(blockingGenNeighbour.chunkZ)); + } + + final JsonArray neighboursWaitingForUs = new JsonArray(); + neighbourWaitState.add("neighbours_waiting_on_us", neighboursWaitingForUs); + for (final Reference2ObjectMap.Entry entry : this.neighboursWaitingForUs.reference2ObjectEntrySet()) { + final NewChunkHolder holder = entry.getKey(); + final ChunkStatus status = entry.getValue(); + + final JsonObject neighbour = new JsonObject(); + neighboursWaitingForUs.add(neighbour); + + + neighbour.addProperty("chunkX", Integer.valueOf(holder.chunkX)); + neighbour.addProperty("chunkZ", Integer.valueOf(holder.chunkZ)); + neighbour.addProperty("waiting_for", Objects.toString(status)); + } + + ret.addProperty("pending_chunk_full_status", Objects.toString(this.pendingFullChunkStatus)); + ret.addProperty("current_chunk_full_status", Objects.toString(this.currentFullChunkStatus)); + ret.addProperty("generation_task", Objects.toString(this.generationTask)); + ret.addProperty("requested_generation", Objects.toString(this.requestedGenStatus)); + ret.addProperty("has_entity_load_task", Boolean.valueOf(this.entityDataLoadTask != null)); + ret.addProperty("has_poi_load_task", Boolean.valueOf(this.poiDataLoadTask != null)); + + final UnloadTask entityDataUnload = this.entityDataUnload; + final UnloadTask poiDataUnload = this.poiDataUnload; + final UnloadTask chunkDataUnload = this.chunkDataUnload; + + ret.add("entity_unload_completable", serializeCompletable(entityDataUnload == null ? null : entityDataUnload.completable())); + ret.add("poi_unload_completable", serializeCompletable(poiDataUnload == null ? null : poiDataUnload.completable())); + ret.add("chunk_unload_completable", serializeCompletable(chunkDataUnload == null ? null : chunkDataUnload.completable())); + + final DelayedPrioritisedTask unloadTask = chunkDataUnload == null ? null : chunkDataUnload.task(); + if (unloadTask == null) { + ret.addProperty("unload_task_priority", "null"); + ret.addProperty("unload_task_priority_raw", "null"); + } else { + ret.addProperty("unload_task_priority", Objects.toString(unloadTask.getPriority())); + ret.addProperty("unload_task_priority_raw", Integer.valueOf(unloadTask.getPriorityInternal())); + } + + ret.addProperty("killed", Boolean.valueOf(this.unloaded)); + + return ret; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/PriorityHolder.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/PriorityHolder.java new file mode 100644 index 0000000000000000000000000000000000000000..261e09454f49d04eb159c984ec695d7c7aa6a3a8 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/PriorityHolder.java @@ -0,0 +1,215 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import java.lang.invoke.VarHandle; + +public abstract class PriorityHolder { + + protected volatile int priority; + protected static final VarHandle PRIORITY_HANDLE = ConcurrentUtil.getVarHandle(PriorityHolder.class, "priority", int.class); + + protected static final int PRIORITY_SCHEDULED = Integer.MIN_VALUE >>> 0; + protected static final int PRIORITY_EXECUTED = Integer.MIN_VALUE >>> 1; + + protected final int getPriorityVolatile() { + return (int)PRIORITY_HANDLE.getVolatile((PriorityHolder)this); + } + + protected final int compareAndExchangePriorityVolatile(final int expect, final int update) { + return (int)PRIORITY_HANDLE.compareAndExchange((PriorityHolder)this, (int)expect, (int)update); + } + + protected final int getAndOrPriorityVolatile(final int val) { + return (int)PRIORITY_HANDLE.getAndBitwiseOr((PriorityHolder)this, (int)val); + } + + protected final void setPriorityPlain(final int val) { + PRIORITY_HANDLE.set((PriorityHolder)this, (int)val); + } + + protected PriorityHolder(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.setPriorityPlain(priority.priority); + } + + // used only for debug json + public boolean isScheduled() { + return (this.getPriorityVolatile() & PRIORITY_SCHEDULED) != 0; + } + + // returns false if cancelled + public boolean markExecuting() { + return (this.getAndOrPriorityVolatile(PRIORITY_EXECUTED) & PRIORITY_EXECUTED) == 0; + } + + public boolean isMarkedExecuted() { + return (this.getPriorityVolatile() & PRIORITY_EXECUTED) != 0; + } + + public void cancel() { + if ((this.getAndOrPriorityVolatile(PRIORITY_EXECUTED) & PRIORITY_EXECUTED) != 0) { + // cancelled already + return; + } + this.cancelScheduled(); + } + + public void schedule() { + int priority = this.getPriorityVolatile(); + + if ((priority & PRIORITY_SCHEDULED) != 0) { + throw new IllegalStateException("schedule() called twice"); + } + + if ((priority & PRIORITY_EXECUTED) != 0) { + // cancelled + return; + } + + this.scheduleTask(PrioritisedExecutor.Priority.getPriority(priority)); + + int failures = 0; + for (;;) { + if (priority == (priority = this.compareAndExchangePriorityVolatile(priority, priority | PRIORITY_SCHEDULED))) { + return; + } + + if ((priority & PRIORITY_SCHEDULED) != 0) { + throw new IllegalStateException("schedule() called twice"); + } + + if ((priority & PRIORITY_EXECUTED) != 0) { + // cancelled or executed + return; + } + + this.setPriorityScheduled(PrioritisedExecutor.Priority.getPriority(priority)); + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public final PrioritisedExecutor.Priority getPriority() { + final int ret = this.getPriorityVolatile(); + if ((ret & PRIORITY_EXECUTED) != 0) { + return PrioritisedExecutor.Priority.COMPLETING; + } + if ((ret & PRIORITY_SCHEDULED) != 0) { + return this.getScheduledPriority(); + } + return PrioritisedExecutor.Priority.getPriority(ret); + } + + public final void lowerPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + return; + } + + if ((curr & PRIORITY_SCHEDULED) != 0) { + this.lowerPriorityScheduled(priority); + return; + } + + if (!priority.isLowerPriority(curr)) { + return; + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public final void setPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + return; + } + + if ((curr & PRIORITY_SCHEDULED) != 0) { + this.setPriorityScheduled(priority); + return; + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public final void raisePriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + return; + } + + if ((curr & PRIORITY_SCHEDULED) != 0) { + this.raisePriorityScheduled(priority); + return; + } + + if (!priority.isHigherPriority(curr)) { + return; + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + protected abstract void cancelScheduled(); + + protected abstract PrioritisedExecutor.Priority getScheduledPriority(); + + protected abstract void scheduleTask(final PrioritisedExecutor.Priority priority); + + protected abstract void lowerPriorityScheduled(final PrioritisedExecutor.Priority priority); + + protected abstract void setPriorityScheduled(final PrioritisedExecutor.Priority priority); + + protected abstract void raisePriorityScheduled(final PrioritisedExecutor.Priority priority); +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ThreadedTicketLevelPropagator.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ThreadedTicketLevelPropagator.java new file mode 100644 index 0000000000000000000000000000000000000000..310a8f80debadd64c2d962ebf83b7d0505ce6e42 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/ThreadedTicketLevelPropagator.java @@ -0,0 +1,1457 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling; + +import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue; +import ca.spottedleaf.concurrentutil.lock.ReentrantAreaLock; +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task.ChunkProgressionTask; +import it.unimi.dsi.fastutil.longs.Long2ByteLinkedOpenHashMap; +import it.unimi.dsi.fastutil.shorts.Short2ByteLinkedOpenHashMap; +import it.unimi.dsi.fastutil.shorts.Short2ByteMap; +import it.unimi.dsi.fastutil.shorts.ShortOpenHashSet; +import java.lang.invoke.VarHandle; +import java.util.ArrayDeque; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; +import java.util.concurrent.locks.LockSupport; + +public abstract class ThreadedTicketLevelPropagator { + + // sections are 64 in length + public static final int SECTION_SHIFT = 6; + public static final int SECTION_SIZE = 1 << SECTION_SHIFT; + private static final int LEVEL_BITS = SECTION_SHIFT; + private static final int LEVEL_COUNT = 1 << LEVEL_BITS; + private static final int MIN_SOURCE_LEVEL = 1; + // we limit the max source to 62 because the de-propagation code _must_ attempt to de-propagate + // a 1 level to 0; and if a source was 63 then it may cross more than 2 sections in de-propagation + private static final int MAX_SOURCE_LEVEL = 62; + + private static int getMaxSchedulingRadius() { + return 2 * ChunkTaskScheduler.getMaxAccessRadius(); + } + + private final UpdateQueue updateQueue; + private final ConcurrentLong2ReferenceChainedHashTable
    sections; + + public ThreadedTicketLevelPropagator() { + this.updateQueue = new UpdateQueue(); + this.sections = new ConcurrentLong2ReferenceChainedHashTable<>(); + } + + // must hold ticket lock for: + // (posX & ~(SECTION_SIZE - 1), posZ & ~(SECTION_SIZE - 1)) to (posX | (SECTION_SIZE - 1), posZ | (SECTION_SIZE - 1)) + public void setSource(final int posX, final int posZ, final int to) { + if (to < 1 || to > MAX_SOURCE_LEVEL) { + throw new IllegalArgumentException("Source: " + to); + } + + final int sectionX = posX >> SECTION_SHIFT; + final int sectionZ = posZ >> SECTION_SHIFT; + + final long coordinate = CoordinateUtils.getChunkKey(sectionX, sectionZ); + Section section = this.sections.get(coordinate); + if (section == null) { + if (null != this.sections.putIfAbsent(coordinate, section = new Section(sectionX, sectionZ))) { + throw new IllegalStateException("Race condition while creating new section"); + } + } + + final int localIdx = (posX & (SECTION_SIZE - 1)) | ((posZ & (SECTION_SIZE - 1)) << SECTION_SHIFT); + final short sLocalIdx = (short)localIdx; + + final short sourceAndLevel = section.levels[localIdx]; + final int currentSource = (sourceAndLevel >>> 8) & 0xFF; + + if (currentSource == to) { + // nothing to do + // make sure to kill the current update, if any + section.queuedSources.replace(sLocalIdx, (byte)to); + return; + } + + if (section.queuedSources.put(sLocalIdx, (byte)to) == Section.NO_QUEUED_UPDATE && section.queuedSources.size() == 1) { + this.queueSectionUpdate(section); + } + } + + // must hold ticket lock for: + // (posX & ~(SECTION_SIZE - 1), posZ & ~(SECTION_SIZE - 1)) to (posX | (SECTION_SIZE - 1), posZ | (SECTION_SIZE - 1)) + public void removeSource(final int posX, final int posZ) { + final int sectionX = posX >> SECTION_SHIFT; + final int sectionZ = posZ >> SECTION_SHIFT; + + final long coordinate = CoordinateUtils.getChunkKey(sectionX, sectionZ); + final Section section = this.sections.get(coordinate); + + if (section == null) { + return; + } + + final int localIdx = (posX & (SECTION_SIZE - 1)) | ((posZ & (SECTION_SIZE - 1)) << SECTION_SHIFT); + final short sLocalIdx = (short)localIdx; + + final int currentSource = (section.levels[localIdx] >>> 8) & 0xFF; + + if (currentSource == 0) { + // we use replace here so that we do not possibly multi-queue a section for an update + section.queuedSources.replace(sLocalIdx, (byte)0); + return; + } + + if (section.queuedSources.put(sLocalIdx, (byte)0) == Section.NO_QUEUED_UPDATE && section.queuedSources.size() == 1) { + this.queueSectionUpdate(section); + } + } + + private void queueSectionUpdate(final Section section) { + this.updateQueue.append(new UpdateQueue.UpdateQueueNode(section, null)); + } + + public boolean hasPendingUpdates() { + return !this.updateQueue.isEmpty(); + } + + // holds ticket lock for every chunk section represented by any position in the key set + // updates is modifiable and passed to processSchedulingUpdates after this call + protected abstract void processLevelUpdates(final Long2ByteLinkedOpenHashMap updates); + + // holds ticket lock for every chunk section represented by any position in the key set + // holds scheduling lock in max access radius for every position held by the ticket lock + // updates is cleared after this call + protected abstract void processSchedulingUpdates(final Long2ByteLinkedOpenHashMap updates, final List scheduledTasks, + final List changedFullStatus); + + // must hold ticket lock for every position in the sections in one radius around sectionX,sectionZ + public boolean performUpdate(final int sectionX, final int sectionZ, final ReentrantAreaLock schedulingLock, + final List scheduledTasks, final List changedFullStatus) { + if (!this.hasPendingUpdates()) { + return false; + } + + final long coordinate = CoordinateUtils.getChunkKey(sectionX, sectionZ); + final Section section = this.sections.get(coordinate); + + if (section == null || section.queuedSources.isEmpty()) { + // no section or no updates + return false; + } + + final Propagator propagator = Propagator.acquirePropagator(); + final boolean ret = this.performUpdate(section, null, propagator, + null, schedulingLock, scheduledTasks, changedFullStatus + ); + Propagator.returnPropagator(propagator); + return ret; + } + + private boolean performUpdate(final Section section, final UpdateQueue.UpdateQueueNode node, final Propagator propagator, + final ReentrantAreaLock ticketLock, final ReentrantAreaLock schedulingLock, + final List scheduledTasks, final List changedFullStatus) { + final int sectionX = section.sectionX; + final int sectionZ = section.sectionZ; + + final int rad1MinX = (sectionX - 1) << SECTION_SHIFT; + final int rad1MinZ = (sectionZ - 1) << SECTION_SHIFT; + final int rad1MaxX = ((sectionX + 1) << SECTION_SHIFT) | (SECTION_SIZE - 1); + final int rad1MaxZ = ((sectionZ + 1) << SECTION_SHIFT) | (SECTION_SIZE - 1); + + // set up encode offset first as we need to queue level changes _before_ + propagator.setupEncodeOffset(sectionX, sectionZ); + + final int coordinateOffset = propagator.coordinateOffset; + + final ReentrantAreaLock.Node ticketNode = ticketLock == null ? null : ticketLock.lock(rad1MinX, rad1MinZ, rad1MaxX, rad1MaxZ); + final boolean ret; + try { + // first, check if this update was stolen + if (section != this.sections.get(CoordinateUtils.getChunkKey(sectionX, sectionZ))) { + // occurs when a stolen update deletes this section + // it is possible that another update is scheduled, but that one will have the correct section + if (node != null) { + this.updateQueue.remove(node); + } + return false; + } + + final int oldSourceSize = section.sources.size(); + + // process pending sources + for (final Iterator iterator = section.queuedSources.short2ByteEntrySet().fastIterator(); iterator.hasNext();) { + final Short2ByteMap.Entry entry = iterator.next(); + final int pos = (int)entry.getShortKey(); + final int posX = (pos & (SECTION_SIZE - 1)) | (sectionX << SECTION_SHIFT); + final int posZ = ((pos >> SECTION_SHIFT) & (SECTION_SIZE - 1)) | (sectionZ << SECTION_SHIFT); + final int newSource = (int)entry.getByteValue(); + + final short currentEncoded = section.levels[pos]; + final int currLevel = currentEncoded & 0xFF; + final int prevSource = (currentEncoded >>> 8) & 0xFF; + + if (prevSource == newSource) { + // nothing changed + continue; + } + + if ((prevSource < currLevel && newSource <= currLevel) || newSource == currLevel) { + // just update the source, don't need to propagate change + section.levels[pos] = (short)(currLevel | (newSource << 8)); + // level is unchanged, don't add to changed positions + } else { + // set current level and current source to new source + section.levels[pos] = (short)(newSource | (newSource << 8)); + // must add to updated positions in case this is final + propagator.updatedPositions.put(CoordinateUtils.getChunkKey(posX, posZ), (byte)newSource); + if (newSource != 0) { + // queue increase with new source level + propagator.appendToIncreaseQueue( + ((long)(posX + (posZ << Propagator.COORDINATE_BITS) + coordinateOffset) & ((1L << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS)) - 1)) | + ((newSource & (LEVEL_COUNT - 1L)) << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS)) | + (Propagator.ALL_DIRECTIONS_BITSET << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS + LEVEL_BITS)) + ); + } + // queue decrease with previous level + if (newSource < currLevel) { + propagator.appendToDecreaseQueue( + ((long)(posX + (posZ << Propagator.COORDINATE_BITS) + coordinateOffset) & ((1L << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS)) - 1)) | + ((currLevel & (LEVEL_COUNT - 1L)) << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS)) | + (Propagator.ALL_DIRECTIONS_BITSET << (Propagator.COORDINATE_BITS + Propagator.COORDINATE_BITS + LEVEL_BITS)) + ); + } + } + + if (newSource == 0) { + // prevSource != newSource, so we are removing this source + section.sources.remove((short)pos); + } else if (prevSource == 0) { + // prevSource != newSource, so we are adding this source + section.sources.add((short)pos); + } + } + + section.queuedSources.clear(); + + final int newSourceSize = section.sources.size(); + + if (oldSourceSize == 0 && newSourceSize != 0) { + // need to make sure the sections in 1 radius are initialised + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + if ((dx | dz) == 0) { + continue; + } + final int offX = dx + sectionX; + final int offZ = dz + sectionZ; + final long coordinate = CoordinateUtils.getChunkKey(offX, offZ); + final Section neighbour = this.sections.computeIfAbsent(coordinate, (final long keyInMap) -> { + return new Section(CoordinateUtils.getChunkX(keyInMap), CoordinateUtils.getChunkZ(keyInMap)); + }); + + // increase ref count + ++neighbour.oneRadNeighboursWithSources; + if (neighbour.oneRadNeighboursWithSources <= 0 || neighbour.oneRadNeighboursWithSources > 8) { + throw new IllegalStateException(Integer.toString(neighbour.oneRadNeighboursWithSources)); + } + } + } + } + + if (propagator.hasUpdates()) { + propagator.setupCaches(this, sectionX, sectionZ, 1); + propagator.performDecrease(); + // don't need try-finally, as any exception will cause the propagator to not be returned + propagator.destroyCaches(); + } + + if (newSourceSize == 0) { + final boolean decrementRef = oldSourceSize != 0; + // check for section de-init + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + final int offX = dx + sectionX; + final int offZ = dz + sectionZ; + final long coordinate = CoordinateUtils.getChunkKey(offX, offZ); + final Section neighbour = this.sections.get(coordinate); + + if (neighbour == null) { + if (oldSourceSize == 0 && (dx | dz) != 0) { + // since we don't have sources, this section is allowed to be null + continue; + } + throw new IllegalStateException("??"); + } + + if (decrementRef && (dx | dz) != 0) { + // decrease ref count, but only for neighbours + --neighbour.oneRadNeighboursWithSources; + } + + // we need to check the current section for de-init as well + if (neighbour.oneRadNeighboursWithSources == 0) { + if (neighbour.queuedSources.isEmpty() && neighbour.sources.isEmpty()) { + // need to de-init + this.sections.remove(coordinate); + } // else: neighbour is queued for an update, and it will de-init itself + } else if (neighbour.oneRadNeighboursWithSources < 0 || neighbour.oneRadNeighboursWithSources > 8) { + throw new IllegalStateException(Integer.toString(neighbour.oneRadNeighboursWithSources)); + } + } + } + } + + + ret = !propagator.updatedPositions.isEmpty(); + + if (ret) { + this.processLevelUpdates(propagator.updatedPositions); + + if (!propagator.updatedPositions.isEmpty()) { + // now we can actually update the ticket levels in the chunk holders + final int maxScheduleRadius = getMaxSchedulingRadius(); + + // allow the chunkholders to process ticket level updates without needing to acquire the schedule lock every time + final ReentrantAreaLock.Node schedulingNode = schedulingLock.lock( + rad1MinX - maxScheduleRadius, rad1MinZ - maxScheduleRadius, + rad1MaxX + maxScheduleRadius, rad1MaxZ + maxScheduleRadius + ); + try { + this.processSchedulingUpdates(propagator.updatedPositions, scheduledTasks, changedFullStatus); + } finally { + schedulingLock.unlock(schedulingNode); + } + } + + propagator.updatedPositions.clear(); + } + } finally { + if (ticketLock != null) { + ticketLock.unlock(ticketNode); + } + } + + // finished + if (node != null) { + this.updateQueue.remove(node); + } + + return ret; + } + + public boolean performUpdates(final ReentrantAreaLock ticketLock, final ReentrantAreaLock schedulingLock, + final List scheduledTasks, final List changedFullStatus) { + if (this.updateQueue.isEmpty()) { + return false; + } + + final long maxOrder = this.updateQueue.getLastOrder(); + + boolean updated = false; + Propagator propagator = null; + + for (;;) { + final UpdateQueue.UpdateQueueNode toUpdate = this.updateQueue.acquireNextOrWait(maxOrder); + if (toUpdate == null) { + if (!this.updateQueue.hasRemainingUpdates(maxOrder)) { + if (propagator != null) { + Propagator.returnPropagator(propagator); + } + return updated; + } + + continue; + } + + if (propagator == null) { + propagator = Propagator.acquirePropagator(); + } + + updated |= this.performUpdate(toUpdate.section, toUpdate, propagator, ticketLock, schedulingLock, scheduledTasks, changedFullStatus); + } + } + + // Similar implementation of concurrent FIFO queue (See MTQ in ConcurrentUtil) which has an additional node pointer + // for the last update node being handled + private static final class UpdateQueue { + + private volatile UpdateQueueNode head; + private volatile UpdateQueueNode tail; + + private static final VarHandle HEAD_HANDLE = ConcurrentUtil.getVarHandle(UpdateQueue.class, "head", UpdateQueueNode.class); + private static final VarHandle TAIL_HANDLE = ConcurrentUtil.getVarHandle(UpdateQueue.class, "tail", UpdateQueueNode.class); + + /* head */ + + private final void setHeadPlain(final UpdateQueueNode newHead) { + HEAD_HANDLE.set(this, newHead); + } + + private final void setHeadOpaque(final UpdateQueueNode newHead) { + HEAD_HANDLE.setOpaque(this, newHead); + } + + private final UpdateQueueNode getHeadPlain() { + return (UpdateQueueNode)HEAD_HANDLE.get(this); + } + + private final UpdateQueueNode getHeadOpaque() { + return (UpdateQueueNode)HEAD_HANDLE.getOpaque(this); + } + + private final UpdateQueueNode getHeadAcquire() { + return (UpdateQueueNode)HEAD_HANDLE.getAcquire(this); + } + + /* tail */ + + private final void setTailPlain(final UpdateQueueNode newTail) { + TAIL_HANDLE.set(this, newTail); + } + + private final void setTailOpaque(final UpdateQueueNode newTail) { + TAIL_HANDLE.setOpaque(this, newTail); + } + + private final UpdateQueueNode getTailPlain() { + return (UpdateQueueNode)TAIL_HANDLE.get(this); + } + + private final UpdateQueueNode getTailOpaque() { + return (UpdateQueueNode)TAIL_HANDLE.getOpaque(this); + } + + public UpdateQueue() { + final UpdateQueueNode dummy = new UpdateQueueNode(null, null); + dummy.order = -1L; + dummy.preventAdds(); + + this.setHeadPlain(dummy); + this.setTailPlain(dummy); + } + + public boolean isEmpty() { + return this.peek() == null; + } + + public boolean hasRemainingUpdates(final long maxUpdate) { + final UpdateQueueNode node = this.peek(); + return node != null && node.order <= maxUpdate; + } + + public long getLastOrder() { + for (UpdateQueueNode tail = this.getTailOpaque(), curr = tail;;) { + final UpdateQueueNode next = curr.getNextVolatile(); + if (next == null) { + // try to update stale tail + if (this.getTailOpaque() == tail && curr != tail) { + this.setTailOpaque(curr); + } + return curr.order; + } + curr = next; + } + } + + private static void await(final UpdateQueueNode node) { + final Thread currThread = Thread.currentThread(); + // we do not use add-blocking because we use the nullability of the section to block + // remove() does not begin to poll from the wait queue until the section is null'd, + // and so provided we check the nullability before parking there is no ordering of these operations + // such that remove() finishes polling from the wait queue while section is not null + node.add(currThread); + + // wait until completed + while (node.getSectionVolatile() != null) { + LockSupport.park(); + } + } + + public UpdateQueueNode acquireNextOrWait(final long maxOrder) { + final List blocking = new ArrayList<>(); + + node_search: + for (UpdateQueueNode curr = this.peek(); curr != null && curr.order <= maxOrder; curr = curr.getNextVolatile()) { + if (curr.getSectionVolatile() == null) { + continue; + } + + if (curr.getUpdatingVolatile()) { + blocking.add(curr); + continue; + } + + for (int i = 0, len = blocking.size(); i < len; ++i) { + final UpdateQueueNode node = blocking.get(i); + + if (node.intersects(curr)) { + continue node_search; + } + } + + if (curr.getAndSetUpdatingVolatile(true)) { + blocking.add(curr); + continue; + } + + return curr; + } + + if (!blocking.isEmpty()) { + await(blocking.get(0)); + } + + return null; + } + + public UpdateQueueNode peek() { + for (UpdateQueueNode head = this.getHeadOpaque(), curr = head;;) { + final UpdateQueueNode next = curr.getNextVolatile(); + final Section element = curr.getSectionVolatile(); /* Likely in sync */ + + if (element != null) { + if (this.getHeadOpaque() == head && curr != head) { + this.setHeadOpaque(curr); + } + return curr; + } + + if (next == null) { + if (this.getHeadOpaque() == head && curr != head) { + this.setHeadOpaque(curr); + } + return null; + } + curr = next; + } + } + + public void remove(final UpdateQueueNode node) { + // mark as removed + node.setSectionVolatile(null); + + // use peek to advance head + this.peek(); + + // unpark any waiters / block the wait queue + Thread unpark; + while ((unpark = node.poll()) != null) { + LockSupport.unpark(unpark); + } + } + + public void append(final UpdateQueueNode node) { + int failures = 0; + + for (UpdateQueueNode currTail = this.getTailOpaque(), curr = currTail;;) { + /* It has been experimentally shown that placing the read before the backoff results in significantly greater performance */ + /* It is likely due to a cache miss caused by another write to the next field */ + final UpdateQueueNode next = curr.getNextVolatile(); + + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + + if (next == null) { + node.order = curr.order + 1L; + final UpdateQueueNode compared = curr.compareExchangeNextVolatile(null, node); + + if (compared == null) { + /* Added */ + /* Avoid CASing on tail more than we need to */ + /* CAS to avoid setting an out-of-date tail */ + if (this.getTailOpaque() == currTail) { + this.setTailOpaque(node); + } + return; + } + + ++failures; + curr = compared; + continue; + } + + if (curr == currTail) { + /* Tail is likely not up-to-date */ + curr = next; + } else { + /* Try to update to tail */ + if (currTail == (currTail = this.getTailOpaque())) { + curr = next; + } else { + curr = currTail; + } + } + } + } + + // each node also represents a set of waiters, represented by the MTQ + // if the queue is add-blocked, then the update is complete + private static final class UpdateQueueNode extends MultiThreadedQueue { + private final int sectionX; + private final int sectionZ; + + private long order; + private volatile Section section; + private volatile UpdateQueueNode next; + private volatile boolean updating; + + private static final VarHandle SECTION_HANDLE = ConcurrentUtil.getVarHandle(UpdateQueueNode.class, "section", Section.class); + private static final VarHandle NEXT_HANDLE = ConcurrentUtil.getVarHandle(UpdateQueueNode.class, "next", UpdateQueueNode.class); + private static final VarHandle UPDATING_HANDLE = ConcurrentUtil.getVarHandle(UpdateQueueNode.class, "updating", boolean.class); + + public UpdateQueueNode(final Section section, final UpdateQueueNode next) { + if (section == null) { + this.sectionX = this.sectionZ = 0; + } else { + this.sectionX = section.sectionX; + this.sectionZ = section.sectionZ; + } + + SECTION_HANDLE.set(this, section); + NEXT_HANDLE.set(this, next); + } + + public boolean intersects(final UpdateQueueNode other) { + final int dist = Math.max(Math.abs(this.sectionX - other.sectionX), Math.abs(this.sectionZ - other.sectionZ)); + + // intersection radius is ticket update radius (1) + scheduling radius + return dist <= (1 + ((getMaxSchedulingRadius() + (SECTION_SIZE - 1)) >> SECTION_SHIFT)); + } + + /* section */ + + private final Section getSectionPlain() { + return (Section)SECTION_HANDLE.get(this); + } + + private final Section getSectionVolatile() { + return (Section)SECTION_HANDLE.getVolatile(this); + } + + private final void setSectionPlain(final Section update) { + SECTION_HANDLE.set(this, update); + } + + private final void setSectionOpaque(final Section update) { + SECTION_HANDLE.setOpaque(this, update); + } + + private final void setSectionVolatile(final Section update) { + SECTION_HANDLE.setVolatile(this, update); + } + + private final Section getAndSetSectionVolatile(final Section update) { + return (Section)SECTION_HANDLE.getAndSet(this, update); + } + + private final Section compareExchangeSectionVolatile(final Section expect, final Section update) { + return (Section)SECTION_HANDLE.compareAndExchange(this, expect, update); + } + + /* next */ + + private final UpdateQueueNode getNextPlain() { + return (UpdateQueueNode)NEXT_HANDLE.get(this); + } + + private final UpdateQueueNode getNextOpaque() { + return (UpdateQueueNode)NEXT_HANDLE.getOpaque(this); + } + + private final UpdateQueueNode getNextAcquire() { + return (UpdateQueueNode)NEXT_HANDLE.getAcquire(this); + } + + private final UpdateQueueNode getNextVolatile() { + return (UpdateQueueNode)NEXT_HANDLE.getVolatile(this); + } + + private final void setNextPlain(final UpdateQueueNode next) { + NEXT_HANDLE.set(this, next); + } + + private final void setNextVolatile(final UpdateQueueNode next) { + NEXT_HANDLE.setVolatile(this, next); + } + + private final UpdateQueueNode compareExchangeNextVolatile(final UpdateQueueNode expect, final UpdateQueueNode set) { + return (UpdateQueueNode)NEXT_HANDLE.compareAndExchange(this, expect, set); + } + + /* updating */ + + private final boolean getUpdatingVolatile() { + return (boolean)UPDATING_HANDLE.getVolatile(this); + } + + private final boolean getAndSetUpdatingVolatile(final boolean value) { + return (boolean)UPDATING_HANDLE.getAndSet(this, value); + } + } + } + + private static final class Section { + + // upper 8 bits: sources, lower 8 bits: level + // if we REALLY wanted to get crazy, we could make the increase propagator use MethodHandles#byteArrayViewVarHandle + // to read and write the lower 8 bits of this array directly rather than reading, updating the bits, then writing back. + private final short[] levels = new short[SECTION_SIZE * SECTION_SIZE]; + // set of local positions that represent sources + private final ShortOpenHashSet sources = new ShortOpenHashSet(); + // map of local index to new source level + // the source level _cannot_ be updated in the backing storage immediately since the update + private static final byte NO_QUEUED_UPDATE = (byte)-1; + private final Short2ByteLinkedOpenHashMap queuedSources = new Short2ByteLinkedOpenHashMap(); + { + this.queuedSources.defaultReturnValue(NO_QUEUED_UPDATE); + } + private int oneRadNeighboursWithSources = 0; + + public final int sectionX; + public final int sectionZ; + + public Section(final int sectionX, final int sectionZ) { + this.sectionX = sectionX; + this.sectionZ = sectionZ; + } + + public boolean isZero() { + for (final short val : this.levels) { + if (val != 0) { + return false; + } + } + return true; + } + + @Override + public String toString() { + final StringBuilder ret = new StringBuilder(); + + for (int x = 0; x < SECTION_SIZE; ++x) { + ret.append("levels x=").append(x).append("\n"); + for (int z = 0; z < SECTION_SIZE; ++z) { + final short v = this.levels[x | (z << SECTION_SHIFT)]; + ret.append(v & 0xFF).append("."); + } + ret.append("\n"); + ret.append("sources x=").append(x).append("\n"); + for (int z = 0; z < SECTION_SIZE; ++z) { + final short v = this.levels[x | (z << SECTION_SHIFT)]; + ret.append((v >>> 8) & 0xFF).append("."); + } + ret.append("\n\n"); + } + + return ret.toString(); + } + } + + + private static final class Propagator { + + private static final ArrayDeque CACHED_PROPAGATORS = new ArrayDeque<>(); + private static final int MAX_PROPAGATORS = Runtime.getRuntime().availableProcessors() * 2; + + private static Propagator acquirePropagator() { + synchronized (CACHED_PROPAGATORS) { + final Propagator ret = CACHED_PROPAGATORS.pollFirst(); + if (ret != null) { + return ret; + } + } + return new Propagator(); + } + + private static void returnPropagator(final Propagator propagator) { + synchronized (CACHED_PROPAGATORS) { + if (CACHED_PROPAGATORS.size() < MAX_PROPAGATORS) { + CACHED_PROPAGATORS.add(propagator); + } + } + } + + private static final int SECTION_RADIUS = 2; + private static final int SECTION_CACHE_WIDTH = 2 * SECTION_RADIUS + 1; + // minimum number of bits to represent [0, SECTION_SIZE * SECTION_CACHE_WIDTH) + private static final int COORDINATE_BITS = 9; + private static final int COORDINATE_SIZE = 1 << COORDINATE_BITS; + static { + if ((SECTION_SIZE * SECTION_CACHE_WIDTH) > (1 << COORDINATE_BITS)) { + throw new IllegalStateException("Adjust COORDINATE_BITS"); + } + } + // index = x + (z * SECTION_CACHE_WIDTH) + // (this requires x >= 0 and z >= 0) + private final Section[] sections = new Section[SECTION_CACHE_WIDTH * SECTION_CACHE_WIDTH]; + + private int encodeOffsetX; + private int encodeOffsetZ; + + private int coordinateOffset; + + private int encodeSectionOffsetX; + private int encodeSectionOffsetZ; + + private int sectionIndexOffset; + + public final boolean hasUpdates() { + return this.decreaseQueueInitialLength != 0 || this.increaseQueueInitialLength != 0; + } + + private final void setupEncodeOffset(final int centerSectionX, final int centerSectionZ) { + final int maxCoordinate = (SECTION_RADIUS * SECTION_SIZE - 1); + // must have that encoded >= 0 + // coordinates can range from [-maxCoordinate + centerSection*SECTION_SIZE, maxCoordinate + centerSection*SECTION_SIZE] + // we want a range of [0, maxCoordinate*2] + // so, 0 = -maxCoordinate + centerSection*SECTION_SIZE + offset + this.encodeOffsetX = maxCoordinate - (centerSectionX << SECTION_SHIFT); + this.encodeOffsetZ = maxCoordinate - (centerSectionZ << SECTION_SHIFT); + + // encoded coordinates range from [0, SECTION_SIZE * SECTION_CACHE_WIDTH) + // coordinate index = (x + encodeOffsetX) + ((z + encodeOffsetZ) << COORDINATE_BITS) + this.coordinateOffset = this.encodeOffsetX + (this.encodeOffsetZ << COORDINATE_BITS); + + // need encoded values to be >= 0 + // so, 0 = (-SECTION_RADIUS + centerSectionX) + encodeOffset + this.encodeSectionOffsetX = SECTION_RADIUS - centerSectionX; + this.encodeSectionOffsetZ = SECTION_RADIUS - centerSectionZ; + + // section index = (secX + encodeSectionOffsetX) + ((secZ + encodeSectionOffsetZ) * SECTION_CACHE_WIDTH) + this.sectionIndexOffset = this.encodeSectionOffsetX + (this.encodeSectionOffsetZ * SECTION_CACHE_WIDTH); + } + + // must hold ticket lock for (centerSectionX,centerSectionZ) in radius rad + // must call setupEncodeOffset + private final void setupCaches(final ThreadedTicketLevelPropagator propagator, + final int centerSectionX, final int centerSectionZ, + final int rad) { + for (int dz = -rad; dz <= rad; ++dz) { + for (int dx = -rad; dx <= rad; ++dx) { + final int sectionX = centerSectionX + dx; + final int sectionZ = centerSectionZ + dz; + final long coordinate = CoordinateUtils.getChunkKey(sectionX, sectionZ); + final Section section = propagator.sections.get(coordinate); + + if (section == null) { + throw new IllegalStateException("Section at " + coordinate + " should not be null"); + } + + this.setSectionInCache(sectionX, sectionZ, section); + } + } + } + + private final void setSectionInCache(final int sectionX, final int sectionZ, final Section section) { + this.sections[sectionX + SECTION_CACHE_WIDTH*sectionZ + this.sectionIndexOffset] = section; + } + + private final Section getSection(final int sectionX, final int sectionZ) { + return this.sections[sectionX + SECTION_CACHE_WIDTH*sectionZ + this.sectionIndexOffset]; + } + + private final int getLevel(final int posX, final int posZ) { + final Section section = this.sections[(posX >> SECTION_SHIFT) + SECTION_CACHE_WIDTH*(posZ >> SECTION_SHIFT) + this.sectionIndexOffset]; + if (section != null) { + return (int)section.levels[(posX & (SECTION_SIZE - 1)) | ((posZ & (SECTION_SIZE - 1)) << SECTION_SHIFT)] & 0xFF; + } + + return 0; + } + + private final void setLevel(final int posX, final int posZ, final int to) { + final Section section = this.sections[(posX >> SECTION_SHIFT) + SECTION_CACHE_WIDTH*(posZ >> SECTION_SHIFT) + this.sectionIndexOffset]; + if (section != null) { + final int index = (posX & (SECTION_SIZE - 1)) | ((posZ & (SECTION_SIZE - 1)) << SECTION_SHIFT); + final short level = section.levels[index]; + section.levels[index] = (short)((level & ~0xFF) | (to & 0xFF)); + this.updatedPositions.put(CoordinateUtils.getChunkKey(posX, posZ), (byte)to); + } + } + + private final void destroyCaches() { + Arrays.fill(this.sections, null); + } + + // contains: + // lower (COORDINATE_BITS(9) + COORDINATE_BITS(9) = 18) bits encoded position: (x | (z << COORDINATE_BITS)) + // next LEVEL_BITS (6) bits: propagated level [0, 63] + // propagation directions bitset (16 bits): + private static final long ALL_DIRECTIONS_BITSET = ( + // z = -1 + (1L << ((1 - 1) | ((1 - 1) << 2))) | + (1L << ((1 + 0) | ((1 - 1) << 2))) | + (1L << ((1 + 1) | ((1 - 1) << 2))) | + + // z = 0 + (1L << ((1 - 1) | ((1 + 0) << 2))) | + //(1L << ((1 + 0) | ((1 + 0) << 2))) | // exclude (0,0) + (1L << ((1 + 1) | ((1 + 0) << 2))) | + + // z = 1 + (1L << ((1 - 1) | ((1 + 1) << 2))) | + (1L << ((1 + 0) | ((1 + 1) << 2))) | + (1L << ((1 + 1) | ((1 + 1) << 2))) + ); + + private void ex(int bitset) { + for (int i = 0, len = Integer.bitCount(bitset); i < len; ++i) { + final int set = Integer.numberOfTrailingZeros(bitset); + final int tailingBit = (-bitset) & bitset; + // XOR to remove the trailing bit + bitset ^= tailingBit; + + // the encoded value set is (x_val) | (z_val << 2), totaling 4 bits + // thus, the bitset is 16 bits wide where each one represents a direction to propagate and the + // index of the set bit is the encoded value + // the encoded coordinate has 3 valid states: + // 0b00 (0) -> -1 + // 0b01 (1) -> 0 + // 0b10 (2) -> 1 + // the decode operation then is val - 1, and the encode operation is val + 1 + final int xOff = (set & 3) - 1; + final int zOff = ((set >>> 2) & 3) - 1; + System.out.println("Encoded: (" + xOff + "," + zOff + ")"); + } + } + + private void ch(long bs, int shift) { + int bitset = (int)(bs >>> shift); + for (int i = 0, len = Integer.bitCount(bitset); i < len; ++i) { + final int set = Integer.numberOfTrailingZeros(bitset); + final int tailingBit = (-bitset) & bitset; + // XOR to remove the trailing bit + bitset ^= tailingBit; + + // the encoded value set is (x_val) | (z_val << 2), totaling 4 bits + // thus, the bitset is 16 bits wide where each one represents a direction to propagate and the + // index of the set bit is the encoded value + // the encoded coordinate has 3 valid states: + // 0b00 (0) -> -1 + // 0b01 (1) -> 0 + // 0b10 (2) -> 1 + // the decode operation then is val - 1, and the encode operation is val + 1 + final int xOff = (set & 3) - 1; + final int zOff = ((set >>> 2) & 3) - 1; + if (Math.abs(xOff) > 1 || Math.abs(zOff) > 1 || (xOff | zOff) == 0) { + throw new IllegalStateException(); + } + } + } + + // whether the increase propagator needs to write the propagated level to the position, used to avoid cascading + // updates for sources + private static final long FLAG_WRITE_LEVEL = Long.MIN_VALUE >>> 1; + // whether the propagation needs to check if its current level is equal to the expected level + // used only in increase propagation + private static final long FLAG_RECHECK_LEVEL = Long.MIN_VALUE >>> 0; + + private long[] increaseQueue = new long[SECTION_SIZE * SECTION_SIZE * 2]; + private int increaseQueueInitialLength; + private long[] decreaseQueue = new long[SECTION_SIZE * SECTION_SIZE * 2]; + private int decreaseQueueInitialLength; + + private final Long2ByteLinkedOpenHashMap updatedPositions = new Long2ByteLinkedOpenHashMap(); + + private final long[] resizeIncreaseQueue() { + return this.increaseQueue = Arrays.copyOf(this.increaseQueue, this.increaseQueue.length * 2); + } + + private final long[] resizeDecreaseQueue() { + return this.decreaseQueue = Arrays.copyOf(this.decreaseQueue, this.decreaseQueue.length * 2); + } + + private final void appendToIncreaseQueue(final long value) { + final int idx = this.increaseQueueInitialLength++; + long[] queue = this.increaseQueue; + if (idx >= queue.length) { + queue = this.resizeIncreaseQueue(); + queue[idx] = value; + return; + } else { + queue[idx] = value; + return; + } + } + + private final void appendToDecreaseQueue(final long value) { + final int idx = this.decreaseQueueInitialLength++; + long[] queue = this.decreaseQueue; + if (idx >= queue.length) { + queue = this.resizeDecreaseQueue(); + queue[idx] = value; + return; + } else { + queue[idx] = value; + return; + } + } + + private final void performIncrease() { + long[] queue = this.increaseQueue; + int queueReadIndex = 0; + int queueLength = this.increaseQueueInitialLength; + this.increaseQueueInitialLength = 0; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetZ = -this.encodeOffsetZ; + final int encodeOffset = this.coordinateOffset; + final int sectionOffset = this.sectionIndexOffset; + + final Long2ByteLinkedOpenHashMap updatedPositions = this.updatedPositions; + + while (queueReadIndex < queueLength) { + final long queueValue = queue[queueReadIndex++]; + + final int posX = ((int)queueValue & (COORDINATE_SIZE - 1)) + decodeOffsetX; + final int posZ = (((int)queueValue >>> COORDINATE_BITS) & (COORDINATE_SIZE - 1)) + decodeOffsetZ; + final int propagatedLevel = ((int)queueValue >>> (COORDINATE_BITS + COORDINATE_BITS)) & (LEVEL_COUNT - 1); + // note: the above code requires coordinate bits * 2 < 32 + // bitset is 16 bits + int propagateDirectionBitset = (int)(queueValue >>> (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) & ((1 << 16) - 1); + + if ((queueValue & FLAG_RECHECK_LEVEL) != 0L) { + if (this.getLevel(posX, posZ) != propagatedLevel) { + // not at the level we expect, so something changed. + continue; + } + } else if ((queueValue & FLAG_WRITE_LEVEL) != 0L) { + // these are used to restore sources after a propagation decrease + this.setLevel(posX, posZ, propagatedLevel); + } + + // this bitset represents the values that we have not propagated to + // this bitset lets us determine what directions the neighbours we set should propagate to, in most cases + // significantly reducing the total number of ops + // since we propagate in a 1 radius, we need a 2 radius bitset to hold all possible values we would possibly need + // but if we use only 5x5 bits, then we need to use div/mod to retrieve coordinates from the bitset, so instead + // we use an 8x8 bitset and luckily that can be fit into only one long value (64 bits) + // to make things easy, we use positions [0, 4] in the bitset, with current position being 2 + // index = x | (z << 3) + + // to start, we eliminate everything 1 radius from the current position as the previous propagator + // must guarantee that either we propagate everything in 1 radius or we partially propagate for 1 radius + // but the rest not propagated are already handled + long currentPropagation = ~( + // z = -1 + (1L << ((2 - 1) | ((2 - 1) << 3))) | + (1L << ((2 + 0) | ((2 - 1) << 3))) | + (1L << ((2 + 1) | ((2 - 1) << 3))) | + + // z = 0 + (1L << ((2 - 1) | ((2 + 0) << 3))) | + (1L << ((2 + 0) | ((2 + 0) << 3))) | + (1L << ((2 + 1) | ((2 + 0) << 3))) | + + // z = 1 + (1L << ((2 - 1) | ((2 + 1) << 3))) | + (1L << ((2 + 0) | ((2 + 1) << 3))) | + (1L << ((2 + 1) | ((2 + 1) << 3))) + ); + + final int toPropagate = propagatedLevel - 1; + + // we could use while (propagateDirectionBitset != 0), but it's not a predictable branch. By counting + // the bits, the cpu loop predictor should perfectly predict the loop. + for (int l = 0, len = Integer.bitCount(propagateDirectionBitset); l < len; ++l) { + final int set = Integer.numberOfTrailingZeros(propagateDirectionBitset); + final int tailingBit = (-propagateDirectionBitset) & propagateDirectionBitset; + propagateDirectionBitset ^= tailingBit; + + // pDecode is from [0, 2], and 1 must be subtracted to fully decode the offset + // it has been split to save some cycles via parallelism + final int pDecodeX = (set & 3); + final int pDecodeZ = ((set >>> 2) & 3); + + // re-ordered -1 on the position decode into pos - 1 to occur in parallel with determining pDecodeX + final int offX = (posX - 1) + pDecodeX; + final int offZ = (posZ - 1) + pDecodeZ; + + final int sectionIndex = (offX >> SECTION_SHIFT) + ((offZ >> SECTION_SHIFT) * SECTION_CACHE_WIDTH) + sectionOffset; + final int localIndex = (offX & (SECTION_SIZE - 1)) | ((offZ & (SECTION_SIZE - 1)) << SECTION_SHIFT); + + // to retrieve a set of bits from a long value: (n_bitmask << (nstartidx)) & bitset + // bitset idx = x | (z << 3) + + // read three bits, so we need 7L + // note that generally: off - pos = (pos - 1) + pDecode - pos = pDecode - 1 + // nstartidx1 = x rel -1 for z rel -1 + // = (offX - posX - 1 + 2) | ((offZ - posZ - 1 + 2) << 3) + // = (pDecodeX - 1 - 1 + 2) | ((pDecodeZ - 1 - 1 + 2) << 3) + // = pDecodeX | (pDecodeZ << 3) = start + final int start = pDecodeX | (pDecodeZ << 3); + final long bitsetLine1 = currentPropagation & (7L << (start)); + + // nstartidx2 = x rel -1 for z rel 0 = line after line1, so we can just add 8 (row length of bitset) + final long bitsetLine2 = currentPropagation & (7L << (start + 8)); + + // nstartidx2 = x rel -1 for z rel 0 = line after line2, so we can just add 8 (row length of bitset) + final long bitsetLine3 = currentPropagation & (7L << (start + (8 + 8))); + + // remove ("take") lines from bitset + currentPropagation ^= (bitsetLine1 | bitsetLine2 | bitsetLine3); + + // now try to propagate + final Section section = this.sections[sectionIndex]; + + // lower 8 bits are current level, next upper 7 bits are source level, next 1 bit is updated source flag + final short currentStoredLevel = section.levels[localIndex]; + final int currentLevel = currentStoredLevel & 0xFF; + + if (currentLevel >= toPropagate) { + continue; // already at the level we want + } + + // update level + section.levels[localIndex] = (short)((currentStoredLevel & ~0xFF) | (toPropagate & 0xFF)); + updatedPositions.putAndMoveToLast(CoordinateUtils.getChunkKey(offX, offZ), (byte)toPropagate); + + // queue next + if (toPropagate > 1) { + // now combine into one bitset to pass to child + // the child bitset is 4x4, so we just shift each line by 4 + // add the propagation bitset offset to each line to make it easy to OR it into the propagation queue value + final long childPropagation = + ((bitsetLine1 >>> (start)) << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) | // z = -1 + ((bitsetLine2 >>> (start + 8)) << (4 + COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) | // z = 0 + ((bitsetLine3 >>> (start + (8 + 8))) << (4 + 4 + COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)); // z = 1 + + // don't queue update if toPropagate cannot propagate anything to neighbours + // (for increase, propagating 0 to neighbours is useless) + if (queueLength >= queue.length) { + queue = this.resizeIncreaseQueue(); + } + queue[queueLength++] = + ((long)(offX + (offZ << COORDINATE_BITS) + encodeOffset) & ((1L << (COORDINATE_BITS + COORDINATE_BITS)) - 1)) | + ((toPropagate & (LEVEL_COUNT - 1L)) << (COORDINATE_BITS + COORDINATE_BITS)) | + childPropagation; //(ALL_DIRECTIONS_BITSET << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)); + continue; + } + continue; + } + } + } + + private final void performDecrease() { + long[] queue = this.decreaseQueue; + long[] increaseQueue = this.increaseQueue; + int queueReadIndex = 0; + int queueLength = this.decreaseQueueInitialLength; + this.decreaseQueueInitialLength = 0; + int increaseQueueLength = this.increaseQueueInitialLength; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetZ = -this.encodeOffsetZ; + final int encodeOffset = this.coordinateOffset; + final int sectionOffset = this.sectionIndexOffset; + + final Long2ByteLinkedOpenHashMap updatedPositions = this.updatedPositions; + + while (queueReadIndex < queueLength) { + final long queueValue = queue[queueReadIndex++]; + + final int posX = ((int)queueValue & (COORDINATE_SIZE - 1)) + decodeOffsetX; + final int posZ = (((int)queueValue >>> COORDINATE_BITS) & (COORDINATE_SIZE - 1)) + decodeOffsetZ; + final int propagatedLevel = ((int)queueValue >>> (COORDINATE_BITS + COORDINATE_BITS)) & (LEVEL_COUNT - 1); + // note: the above code requires coordinate bits * 2 < 32 + // bitset is 16 bits + int propagateDirectionBitset = (int)(queueValue >>> (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) & ((1 << 16) - 1); + + // this bitset represents the values that we have not propagated to + // this bitset lets us determine what directions the neighbours we set should propagate to, in most cases + // significantly reducing the total number of ops + // since we propagate in a 1 radius, we need a 2 radius bitset to hold all possible values we would possibly need + // but if we use only 5x5 bits, then we need to use div/mod to retrieve coordinates from the bitset, so instead + // we use an 8x8 bitset and luckily that can be fit into only one long value (64 bits) + // to make things easy, we use positions [0, 4] in the bitset, with current position being 2 + // index = x | (z << 3) + + // to start, we eliminate everything 1 radius from the current position as the previous propagator + // must guarantee that either we propagate everything in 1 radius or we partially propagate for 1 radius + // but the rest not propagated are already handled + long currentPropagation = ~( + // z = -1 + (1L << ((2 - 1) | ((2 - 1) << 3))) | + (1L << ((2 + 0) | ((2 - 1) << 3))) | + (1L << ((2 + 1) | ((2 - 1) << 3))) | + + // z = 0 + (1L << ((2 - 1) | ((2 + 0) << 3))) | + (1L << ((2 + 0) | ((2 + 0) << 3))) | + (1L << ((2 + 1) | ((2 + 0) << 3))) | + + // z = 1 + (1L << ((2 - 1) | ((2 + 1) << 3))) | + (1L << ((2 + 0) | ((2 + 1) << 3))) | + (1L << ((2 + 1) | ((2 + 1) << 3))) + ); + + final int toPropagate = propagatedLevel - 1; + + // we could use while (propagateDirectionBitset != 0), but it's not a predictable branch. By counting + // the bits, the cpu loop predictor should perfectly predict the loop. + for (int l = 0, len = Integer.bitCount(propagateDirectionBitset); l < len; ++l) { + final int set = Integer.numberOfTrailingZeros(propagateDirectionBitset); + final int tailingBit = (-propagateDirectionBitset) & propagateDirectionBitset; + propagateDirectionBitset ^= tailingBit; + + + // pDecode is from [0, 2], and 1 must be subtracted to fully decode the offset + // it has been split to save some cycles via parallelism + final int pDecodeX = (set & 3); + final int pDecodeZ = ((set >>> 2) & 3); + + // re-ordered -1 on the position decode into pos - 1 to occur in parallel with determining pDecodeX + final int offX = (posX - 1) + pDecodeX; + final int offZ = (posZ - 1) + pDecodeZ; + + final int sectionIndex = (offX >> SECTION_SHIFT) + ((offZ >> SECTION_SHIFT) * SECTION_CACHE_WIDTH) + sectionOffset; + final int localIndex = (offX & (SECTION_SIZE - 1)) | ((offZ & (SECTION_SIZE - 1)) << SECTION_SHIFT); + + // to retrieve a set of bits from a long value: (n_bitmask << (nstartidx)) & bitset + // bitset idx = x | (z << 3) + + // read three bits, so we need 7L + // note that generally: off - pos = (pos - 1) + pDecode - pos = pDecode - 1 + // nstartidx1 = x rel -1 for z rel -1 + // = (offX - posX - 1 + 2) | ((offZ - posZ - 1 + 2) << 3) + // = (pDecodeX - 1 - 1 + 2) | ((pDecodeZ - 1 - 1 + 2) << 3) + // = pDecodeX | (pDecodeZ << 3) = start + final int start = pDecodeX | (pDecodeZ << 3); + final long bitsetLine1 = currentPropagation & (7L << (start)); + + // nstartidx2 = x rel -1 for z rel 0 = line after line1, so we can just add 8 (row length of bitset) + final long bitsetLine2 = currentPropagation & (7L << (start + 8)); + + // nstartidx2 = x rel -1 for z rel 0 = line after line2, so we can just add 8 (row length of bitset) + final long bitsetLine3 = currentPropagation & (7L << (start + (8 + 8))); + + // now try to propagate + final Section section = this.sections[sectionIndex]; + + // lower 8 bits are current level, next upper 7 bits are source level, next 1 bit is updated source flag + final short currentStoredLevel = section.levels[localIndex]; + final int currentLevel = currentStoredLevel & 0xFF; + final int sourceLevel = (currentStoredLevel >>> 8) & 0xFF; + + if (currentLevel == 0) { + continue; // already at the level we want + } + + if (currentLevel > toPropagate) { + // it looks like another source propagated here, so re-propagate it + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((long)(offX + (offZ << COORDINATE_BITS) + encodeOffset) & ((1L << (COORDINATE_BITS + COORDINATE_BITS)) - 1)) | + ((currentLevel & (LEVEL_COUNT - 1L)) << (COORDINATE_BITS + COORDINATE_BITS)) | + (FLAG_RECHECK_LEVEL | (ALL_DIRECTIONS_BITSET << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS))); + continue; + } + + // remove ("take") lines from bitset + // can't do this during decrease, TODO WHY? + //currentPropagation ^= (bitsetLine1 | bitsetLine2 | bitsetLine3); + + // update level + section.levels[localIndex] = (short)((currentStoredLevel & ~0xFF)); + updatedPositions.putAndMoveToLast(CoordinateUtils.getChunkKey(offX, offZ), (byte)0); + + if (sourceLevel != 0) { + // re-propagate source + // note: do not set recheck level, or else the propagation will fail + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((long)(offX + (offZ << COORDINATE_BITS) + encodeOffset) & ((1L << (COORDINATE_BITS + COORDINATE_BITS)) - 1)) | + ((sourceLevel & (LEVEL_COUNT - 1L)) << (COORDINATE_BITS + COORDINATE_BITS)) | + (FLAG_WRITE_LEVEL | (ALL_DIRECTIONS_BITSET << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS))); + } + + // queue next + // note: targetLevel > 0 here, since toPropagate >= currentLevel and currentLevel > 0 + // now combine into one bitset to pass to child + // the child bitset is 4x4, so we just shift each line by 4 + // add the propagation bitset offset to each line to make it easy to OR it into the propagation queue value + final long childPropagation = + ((bitsetLine1 >>> (start)) << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) | // z = -1 + ((bitsetLine2 >>> (start + 8)) << (4 + COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)) | // z = 0 + ((bitsetLine3 >>> (start + (8 + 8))) << (4 + 4 + COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)); // z = 1 + + // don't queue update if toPropagate cannot propagate anything to neighbours + // (for increase, propagating 0 to neighbours is useless) + if (queueLength >= queue.length) { + queue = this.resizeDecreaseQueue(); + } + queue[queueLength++] = + ((long)(offX + (offZ << COORDINATE_BITS) + encodeOffset) & ((1L << (COORDINATE_BITS + COORDINATE_BITS)) - 1)) | + ((toPropagate & (LEVEL_COUNT - 1L)) << (COORDINATE_BITS + COORDINATE_BITS)) | + (ALL_DIRECTIONS_BITSET << (COORDINATE_BITS + COORDINATE_BITS + LEVEL_BITS)); //childPropagation; + continue; + } + } + + // propagate sources we clobbered + this.increaseQueueInitialLength = increaseQueueLength; + this.performIncrease(); + } + } + + /* + private static final java.util.Random random = new java.util.Random(4L); + private static final List> walkers = + new java.util.ArrayList<>(); + static final int PLAYERS = 0; + static final int RAD_BLOCKS = 10000; + static final int RAD = RAD_BLOCKS >> 4; + static final int RAD_BIG_BLOCKS = 100_000; + static final int RAD_BIG = RAD_BIG_BLOCKS >> 4; + static final int VD = 4; + static final int BIG_PLAYERS = 50; + static final double WALK_CHANCE = 0.10; + static final double TP_CHANCE = 0.01; + static final int TP_BACK_PLAYERS = 200; + static final double TP_BACK_CHANCE = 0.25; + static final double TP_STEAL_CHANCE = 0.25; + private static final List> tpBack = + new java.util.ArrayList<>(); + + public static void main(final String[] args) { + final ReentrantAreaLock ticketLock = new ReentrantAreaLock(SECTION_SHIFT); + final ReentrantAreaLock schedulingLock = new ReentrantAreaLock(SECTION_SHIFT); + final Long2ByteLinkedOpenHashMap levelMap = new Long2ByteLinkedOpenHashMap(); + final Long2ByteLinkedOpenHashMap refMap = new Long2ByteLinkedOpenHashMap(); + final io.papermc.paper.util.misc.Delayed8WayDistancePropagator2D ref = new io.papermc.paper.util.misc.Delayed8WayDistancePropagator2D((final long coordinate, final byte oldLevel, final byte newLevel) -> { + if (newLevel == 0) { + refMap.remove(coordinate); + } else { + refMap.put(coordinate, newLevel); + } + }); + final ThreadedTicketLevelPropagator propagator = new ThreadedTicketLevelPropagator() { + @Override + protected void processLevelUpdates(Long2ByteLinkedOpenHashMap updates) { + for (final long key : updates.keySet()) { + final byte val = updates.get(key); + if (val == 0) { + levelMap.remove(key); + } else { + levelMap.put(key, val); + } + } + } + + @Override + protected void processSchedulingUpdates(Long2ByteLinkedOpenHashMap updates, List scheduledTasks, List changedFullStatus) {} + }; + + for (;;) { + if (walkers.isEmpty() && tpBack.isEmpty()) { + for (int i = 0; i < PLAYERS; ++i) { + int rad = i < BIG_PLAYERS ? RAD_BIG : RAD; + int posX = random.nextInt(-rad, rad + 1); + int posZ = random.nextInt(-rad, rad + 1); + + io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap map = new io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap<>(null) { + @Override + protected void addCallback(Void parameter, int chunkX, int chunkZ) { + int src = 45 - 31 + 1; + ref.setSource(chunkX, chunkZ, src); + propagator.setSource(chunkX, chunkZ, src); + } + + @Override + protected void removeCallback(Void parameter, int chunkX, int chunkZ) { + ref.removeSource(chunkX, chunkZ); + propagator.removeSource(chunkX, chunkZ); + } + }; + + map.add(posX, posZ, VD); + + walkers.add(map); + } + for (int i = 0; i < TP_BACK_PLAYERS; ++i) { + int rad = RAD_BIG; + int posX = random.nextInt(-rad, rad + 1); + int posZ = random.nextInt(-rad, rad + 1); + + io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap map = new io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap<>(null) { + @Override + protected void addCallback(Void parameter, int chunkX, int chunkZ) { + int src = 45 - 31 + 1; + ref.setSource(chunkX, chunkZ, src); + propagator.setSource(chunkX, chunkZ, src); + } + + @Override + protected void removeCallback(Void parameter, int chunkX, int chunkZ) { + ref.removeSource(chunkX, chunkZ); + propagator.removeSource(chunkX, chunkZ); + } + }; + + map.add(posX, posZ, random.nextInt(1, 63)); + + tpBack.add(map); + } + } else { + for (int i = 0; i < PLAYERS; ++i) { + if (random.nextDouble() > WALK_CHANCE) { + continue; + } + + io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap map = walkers.get(i); + + int updateX = random.nextInt(-1, 2); + int updateZ = random.nextInt(-1, 2); + + map.update(map.lastChunkX + updateX, map.lastChunkZ + updateZ, VD); + } + + for (int i = 0; i < PLAYERS; ++i) { + if (random.nextDouble() > TP_CHANCE) { + continue; + } + + int rad = i < BIG_PLAYERS ? RAD_BIG : RAD; + int posX = random.nextInt(-rad, rad + 1); + int posZ = random.nextInt(-rad, rad + 1); + + io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap map = walkers.get(i); + + map.update(posX, posZ, VD); + } + + for (int i = 0; i < TP_BACK_PLAYERS; ++i) { + if (random.nextDouble() > TP_BACK_CHANCE) { + continue; + } + + io.papermc.paper.chunk.system.RegionizedPlayerChunkLoader.SingleUserAreaMap map = tpBack.get(i); + + map.update(-map.lastChunkX, -map.lastChunkZ, random.nextInt(1, 63)); + + if (random.nextDouble() > TP_STEAL_CHANCE) { + propagator.performUpdate( + map.lastChunkX >> SECTION_SHIFT, map.lastChunkZ >> SECTION_SHIFT, schedulingLock, null, null + ); + propagator.performUpdate( + (-map.lastChunkX >> SECTION_SHIFT), (-map.lastChunkZ >> SECTION_SHIFT), schedulingLock, null, null + ); + } + } + } + + ref.propagateUpdates(); + propagator.performUpdates(ticketLock, schedulingLock, null, null); + + if (!refMap.equals(levelMap)) { + throw new IllegalStateException("Error!"); + } + } + } + */ +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/executor/RadiusAwarePrioritisedExecutor.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/executor/RadiusAwarePrioritisedExecutor.java new file mode 100644 index 0000000000000000000000000000000000000000..e0b26ccb63596748b80fc6a5e47e373ba811ba8b --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/executor/RadiusAwarePrioritisedExecutor.java @@ -0,0 +1,668 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.executor; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import it.unimi.dsi.fastutil.longs.Long2ReferenceOpenHashMap; +import it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet; + +import java.util.ArrayList; +import java.util.Comparator; +import java.util.List; +import java.util.PriorityQueue; + +public class RadiusAwarePrioritisedExecutor { + + private static final Comparator DEPENDENCY_NODE_COMPARATOR = (final DependencyNode t1, final DependencyNode t2) -> { + return Long.compare(t1.id, t2.id); + }; + + private final DependencyTree[] queues = new DependencyTree[PrioritisedExecutor.Priority.TOTAL_SCHEDULABLE_PRIORITIES]; + private static final int NO_TASKS_QUEUED = -1; + private int selectedQueue = NO_TASKS_QUEUED; + private boolean canQueueTasks = true; + + public RadiusAwarePrioritisedExecutor(final PrioritisedExecutor executor, final int maxToSchedule) { + for (int i = 0; i < this.queues.length; ++i) { + this.queues[i] = new DependencyTree(this, executor, maxToSchedule, i); + } + } + + private boolean canQueueTasks() { + return this.canQueueTasks; + } + + private List treeFinished() { + this.canQueueTasks = true; + for (int priority = 0; priority < this.queues.length; ++priority) { + final DependencyTree queue = this.queues[priority]; + if (queue.hasWaitingTasks()) { + final List ret = queue.tryPushTasks(); + + if (ret == null || ret.isEmpty()) { + // this happens when the tasks in the wait queue were purged + // in this case, the queue was actually empty, we just had to purge it + // if we set the selected queue without scheduling any tasks, the queue will never be unselected + // as that requires a scheduled task completing... + continue; + } + + this.selectedQueue = priority; + return ret; + } + } + + this.selectedQueue = NO_TASKS_QUEUED; + + return null; + } + + private List queue(final Task task, final PrioritisedExecutor.Priority priority) { + final int priorityId = priority.priority; + final DependencyTree queue = this.queues[priorityId]; + + final DependencyNode node = new DependencyNode(task, queue); + + if (task.dependencyNode != null) { + throw new IllegalStateException(); + } + task.dependencyNode = node; + + queue.pushNode(node); + + if (this.selectedQueue == NO_TASKS_QUEUED) { + this.canQueueTasks = true; + this.selectedQueue = priorityId; + return queue.tryPushTasks(); + } + + if (!this.canQueueTasks) { + return null; + } + + if (PrioritisedExecutor.Priority.isHigherPriority(priorityId, this.selectedQueue)) { + // prevent the lower priority tree from queueing more tasks + this.canQueueTasks = false; + return null; + } + + // priorityId != selectedQueue: lower priority, don't care - treeFinished will pick it up + return priorityId == this.selectedQueue ? queue.tryPushTasks() : null; + } + + public PrioritisedExecutor.PrioritisedTask createTask(final int chunkX, final int chunkZ, final int radius, + final Runnable run, final PrioritisedExecutor.Priority priority) { + if (radius < 0) { + throw new IllegalArgumentException("Radius must be > 0: " + radius); + } + return new Task(this, chunkX, chunkZ, radius, run, priority); + } + + public PrioritisedExecutor.PrioritisedTask createTask(final int chunkX, final int chunkZ, final int radius, + final Runnable run) { + return this.createTask(chunkX, chunkZ, radius, run, PrioritisedExecutor.Priority.NORMAL); + } + + public PrioritisedExecutor.PrioritisedTask queueTask(final int chunkX, final int chunkZ, final int radius, + final Runnable run, final PrioritisedExecutor.Priority priority) { + final PrioritisedExecutor.PrioritisedTask ret = this.createTask(chunkX, chunkZ, radius, run, priority); + + ret.queue(); + + return ret; + } + + public PrioritisedExecutor.PrioritisedTask queueTask(final int chunkX, final int chunkZ, final int radius, + final Runnable run) { + final PrioritisedExecutor.PrioritisedTask ret = this.createTask(chunkX, chunkZ, radius, run); + + ret.queue(); + + return ret; + } + + public PrioritisedExecutor.PrioritisedTask createInfiniteRadiusTask(final Runnable run, final PrioritisedExecutor.Priority priority) { + return new Task(this, 0, 0, -1, run, priority); + } + + public PrioritisedExecutor.PrioritisedTask createInfiniteRadiusTask(final Runnable run) { + return this.createInfiniteRadiusTask(run, PrioritisedExecutor.Priority.NORMAL); + } + + public PrioritisedExecutor.PrioritisedTask queueInfiniteRadiusTask(final Runnable run, final PrioritisedExecutor.Priority priority) { + final PrioritisedExecutor.PrioritisedTask ret = this.createInfiniteRadiusTask(run, priority); + + ret.queue(); + + return ret; + } + + public PrioritisedExecutor.PrioritisedTask queueInfiniteRadiusTask(final Runnable run) { + final PrioritisedExecutor.PrioritisedTask ret = this.createInfiniteRadiusTask(run, PrioritisedExecutor.Priority.NORMAL); + + ret.queue(); + + return ret; + } + + // all accesses must be synchronised by the radius aware object + private static final class DependencyTree { + + private final RadiusAwarePrioritisedExecutor scheduler; + private final PrioritisedExecutor executor; + private final int maxToSchedule; + private final int treeIndex; + + private int currentlyExecuting; + private long idGenerator; + + private final PriorityQueue awaiting = new PriorityQueue<>(DEPENDENCY_NODE_COMPARATOR); + + private final PriorityQueue infiniteRadius = new PriorityQueue<>(DEPENDENCY_NODE_COMPARATOR); + private boolean isInfiniteRadiusScheduled; + + private final Long2ReferenceOpenHashMap nodeByPosition = new Long2ReferenceOpenHashMap<>(); + + public DependencyTree(final RadiusAwarePrioritisedExecutor scheduler, final PrioritisedExecutor executor, + final int maxToSchedule, final int treeIndex) { + this.scheduler = scheduler; + this.executor = executor; + this.maxToSchedule = maxToSchedule; + this.treeIndex = treeIndex; + } + + public boolean hasWaitingTasks() { + return !this.awaiting.isEmpty() || !this.infiniteRadius.isEmpty(); + } + + private long nextId() { + return this.idGenerator++; + } + + private boolean isExecutingAnyTasks() { + return this.currentlyExecuting != 0; + } + + private void pushNode(final DependencyNode node) { + if (!node.task.isFiniteRadius()) { + this.infiniteRadius.add(node); + return; + } + + // set up dependency for node + final Task task = node.task; + + final int centerX = task.chunkX; + final int centerZ = task.chunkZ; + final int radius = task.radius; + + final int minX = centerX - radius; + final int maxX = centerX + radius; + + final int minZ = centerZ - radius; + final int maxZ = centerZ + radius; + + ReferenceOpenHashSet parents = null; + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + final DependencyNode dependency = this.nodeByPosition.put(CoordinateUtils.getChunkKey(currX, currZ), node); + if (dependency != null) { + if (parents == null) { + parents = new ReferenceOpenHashSet<>(); + } + if (parents.add(dependency)) { + // added a dependency, so we need to add as a child to the dependency + if (dependency.children == null) { + dependency.children = new ArrayList<>(); + } + dependency.children.add(node); + } + } + } + } + + if (parents == null) { + // no dependencies, add straight to awaiting + this.awaiting.add(node); + } else { + node.parents = parents.size(); + // we will be added to awaiting once we have no parents + } + } + + // called only when a node is returned after being executed + private List returnNode(final DependencyNode node) { + final Task task = node.task; + + // now that the task is completed, we can push its children to the awaiting queue + this.pushChildren(node); + + if (task.isFiniteRadius()) { + // remove from dependency map + this.removeNodeFromMap(node); + } else { + // mark as no longer executing infinite radius + if (!this.isInfiniteRadiusScheduled) { + throw new IllegalStateException(); + } + this.isInfiniteRadiusScheduled = false; + } + + // decrement executing count, we are done executing this task + --this.currentlyExecuting; + + if (this.currentlyExecuting == 0) { + return this.scheduler.treeFinished(); + } + + return this.scheduler.canQueueTasks() ? this.tryPushTasks() : null; + } + + private List tryPushTasks() { + // tasks are not queued, but only created here - we do hold the lock for the map + List ret = null; + PrioritisedExecutor.PrioritisedTask pushedTask; + while ((pushedTask = this.tryPushTask()) != null) { + if (ret == null) { + ret = new ArrayList<>(); + } + ret.add(pushedTask); + } + + return ret; + } + + private void removeNodeFromMap(final DependencyNode node) { + final Task task = node.task; + + final int centerX = task.chunkX; + final int centerZ = task.chunkZ; + final int radius = task.radius; + + final int minX = centerX - radius; + final int maxX = centerX + radius; + + final int minZ = centerZ - radius; + final int maxZ = centerZ + radius; + + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + this.nodeByPosition.remove(CoordinateUtils.getChunkKey(currX, currZ), node); + } + } + } + + private void pushChildren(final DependencyNode node) { + // add all the children that we can into awaiting + final List children = node.children; + if (children != null) { + for (int i = 0, len = children.size(); i < len; ++i) { + final DependencyNode child = children.get(i); + int newParents = --child.parents; + if (newParents == 0) { + // no more dependents, we can push to awaiting + // even if the child is purged, we need to push it so that its children will be pushed + this.awaiting.add(child); + } else if (newParents < 0) { + throw new IllegalStateException(); + } + } + } + } + + private DependencyNode pollAwaiting() { + final DependencyNode ret = this.awaiting.poll(); + if (ret == null) { + return ret; + } + + if (ret.parents != 0) { + throw new IllegalStateException(); + } + + if (ret.purged) { + // need to manually remove from state here + this.pushChildren(ret); + this.removeNodeFromMap(ret); + } // else: delay children push until the task has finished + + return ret; + } + + private DependencyNode pollInfinite() { + return this.infiniteRadius.poll(); + } + + public PrioritisedExecutor.PrioritisedTask tryPushTask() { + if (this.currentlyExecuting >= this.maxToSchedule || this.isInfiniteRadiusScheduled) { + return null; + } + + DependencyNode firstInfinite; + while ((firstInfinite = this.infiniteRadius.peek()) != null && firstInfinite.purged) { + this.pollInfinite(); + } + + DependencyNode firstAwaiting; + while ((firstAwaiting = this.awaiting.peek()) != null && firstAwaiting.purged) { + this.pollAwaiting(); + } + + if (firstInfinite == null && firstAwaiting == null) { + return null; + } + + // firstAwaiting compared to firstInfinite + final int compare; + + if (firstAwaiting == null) { + // we choose first infinite, or infinite < awaiting + compare = 1; + } else if (firstInfinite == null) { + // we choose first awaiting, or awaiting < infinite + compare = -1; + } else { + compare = DEPENDENCY_NODE_COMPARATOR.compare(firstAwaiting, firstInfinite); + } + + if (compare >= 0) { + if (this.currentlyExecuting != 0) { + // don't queue infinite task while other tasks are executing in parallel + return null; + } + ++this.currentlyExecuting; + this.pollInfinite(); + this.isInfiniteRadiusScheduled = true; + return firstInfinite.task.pushTask(this.executor); + } else { + ++this.currentlyExecuting; + this.pollAwaiting(); + return firstAwaiting.task.pushTask(this.executor); + } + } + } + + private static final class DependencyNode { + + private final Task task; + private final DependencyTree tree; + + // dependency tree fields + // (must hold lock on the scheduler to use) + // null is the same as empty, we just use it so that we don't allocate the set unless we need to + private List children; + // 0 indicates that this task is considered "awaiting" + private int parents; + // false -> scheduled and not cancelled + // true -> scheduled but cancelled + private boolean purged; + private final long id; + + public DependencyNode(final Task task, final DependencyTree tree) { + this.task = task; + this.id = tree.nextId(); + this.tree = tree; + } + } + + private static final class Task implements PrioritisedExecutor.PrioritisedTask, Runnable { + + // task specific fields + private final RadiusAwarePrioritisedExecutor scheduler; + private final int chunkX; + private final int chunkZ; + private final int radius; + private Runnable run; + private PrioritisedExecutor.Priority priority; + + private DependencyNode dependencyNode; + private PrioritisedExecutor.PrioritisedTask queuedTask; + + private Task(final RadiusAwarePrioritisedExecutor scheduler, final int chunkX, final int chunkZ, final int radius, + final Runnable run, final PrioritisedExecutor.Priority priority) { + this.scheduler = scheduler; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.radius = radius; + this.run = run; + this.priority = priority; + } + + private boolean isFiniteRadius() { + return this.radius >= 0; + } + + private PrioritisedExecutor.PrioritisedTask pushTask(final PrioritisedExecutor executor) { + return this.queuedTask = executor.createTask(this, this.priority); + } + + private void executeTask() { + final Runnable run = this.run; + this.run = null; + run.run(); + } + + private static void scheduleTasks(final List toSchedule) { + if (toSchedule != null) { + for (int i = 0, len = toSchedule.size(); i < len; ++i) { + toSchedule.get(i).queue(); + } + } + } + + private void returnNode() { + final List toSchedule; + synchronized (this.scheduler) { + final DependencyNode node = this.dependencyNode; + this.dependencyNode = null; + toSchedule = node.tree.returnNode(node); + } + + scheduleTasks(toSchedule); + } + + @Override + public void run() { + final Runnable run = this.run; + this.run = null; + try { + run.run(); + } finally { + this.returnNode(); + } + } + + @Override + public boolean queue() { + final List toSchedule; + synchronized (this.scheduler) { + if (this.queuedTask != null || this.dependencyNode != null || this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + toSchedule = this.scheduler.queue(this, this.priority); + } + + scheduleTasks(toSchedule); + return true; + } + + @Override + public boolean cancel() { + final PrioritisedExecutor.PrioritisedTask task; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + if (this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + this.priority = PrioritisedExecutor.Priority.COMPLETING; + if (this.dependencyNode != null) { + this.dependencyNode.purged = true; + this.dependencyNode = null; + } + + return true; + } + } + + if (task.cancel()) { + // must manually return the node + this.run = null; + this.returnNode(); + return true; + } + return false; + } + + @Override + public boolean execute() { + final PrioritisedExecutor.PrioritisedTask task; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + if (this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + this.priority = PrioritisedExecutor.Priority.COMPLETING; + if (this.dependencyNode != null) { + this.dependencyNode.purged = true; + this.dependencyNode = null; + } + // fall through to execution logic + } + } + + if (task != null) { + // will run the return node logic automatically + return task.execute(); + } else { + // don't run node removal/insertion logic, we aren't actually removed from the dependency tree + this.executeTask(); + return true; + } + } + + @Override + public PrioritisedExecutor.Priority getPriority() { + final PrioritisedExecutor.PrioritisedTask task; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + return this.priority; + } + } + + return task.getPriority(); + } + + @Override + public boolean setPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + final PrioritisedExecutor.PrioritisedTask task; + List toSchedule = null; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + if (this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + if (this.priority == priority) { + return true; + } + + this.priority = priority; + if (this.dependencyNode != null) { + // need to re-insert node + this.dependencyNode.purged = true; + this.dependencyNode = null; + toSchedule = this.scheduler.queue(this, priority); + } + } + } + + if (task != null) { + return task.setPriority(priority); + } + + scheduleTasks(toSchedule); + + return true; + } + + @Override + public boolean raisePriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + final PrioritisedExecutor.PrioritisedTask task; + List toSchedule = null; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + if (this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + if (this.priority.isHigherOrEqualPriority(priority)) { + return true; + } + + this.priority = priority; + if (this.dependencyNode != null) { + // need to re-insert node + this.dependencyNode.purged = true; + this.dependencyNode = null; + toSchedule = this.scheduler.queue(this, priority); + } + } + } + + if (task != null) { + return task.raisePriority(priority); + } + + scheduleTasks(toSchedule); + + return true; + } + + @Override + public boolean lowerPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + final PrioritisedExecutor.PrioritisedTask task; + List toSchedule = null; + synchronized (this.scheduler) { + if ((task = this.queuedTask) == null) { + if (this.priority == PrioritisedExecutor.Priority.COMPLETING) { + return false; + } + + if (this.priority.isLowerOrEqualPriority(priority)) { + return true; + } + + this.priority = priority; + if (this.dependencyNode != null) { + // need to re-insert node + this.dependencyNode.purged = true; + this.dependencyNode = null; + toSchedule = this.scheduler.queue(this, priority); + } + } + } + + if (task != null) { + return task.lowerPriority(priority); + } + + scheduleTasks(toSchedule); + + return true; + } + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkFullTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkFullTask.java new file mode 100644 index 0000000000000000000000000000000000000000..49774d42f35eeeac5e2b334cce40e6dcca6d01ed --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkFullTask.java @@ -0,0 +1,139 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.ChunkSystemPoiManager; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder; +import net.minecraft.server.level.ChunkMap; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.ImposterProtoChunk; +import net.minecraft.world.level.chunk.LevelChunk; +import net.minecraft.world.level.chunk.ProtoChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.chunk.status.ChunkStatusTasks; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.invoke.VarHandle; + +public final class ChunkFullTask extends ChunkProgressionTask implements Runnable { + + private static final Logger LOGGER = LoggerFactory.getLogger(ChunkFullTask.class); + + private final NewChunkHolder chunkHolder; + private final ChunkAccess fromChunk; + private final PrioritisedExecutor.PrioritisedTask convertToFullTask; + + public ChunkFullTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, final int chunkZ, + final NewChunkHolder chunkHolder, final ChunkAccess fromChunk, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ); + this.chunkHolder = chunkHolder; + this.fromChunk = fromChunk; + this.convertToFullTask = scheduler.createChunkTask(chunkX, chunkZ, this, priority); + } + + @Override + public ChunkStatus getTargetStatus() { + return ChunkStatus.FULL; + } + + @Override + public void run() { + // See Vanilla ChunkPyramid#LOADING_PYRAMID.FULL for what this function should be doing + final LevelChunk chunk; + try { + // moved from the load from nbt stage into here + final PoiChunk poiChunk = this.chunkHolder.getPoiChunk(); + if (poiChunk == null) { + LOGGER.error("Expected poi chunk to be loaded with chunk for task " + this.toString()); + } else { + poiChunk.load(); + ((ChunkSystemPoiManager)this.world.getPoiManager()).moonrise$checkConsistency(this.fromChunk); + } + + if (this.fromChunk instanceof ImposterProtoChunk wrappedFull) { + chunk = wrappedFull.getWrapped(); + } else { + final ServerLevel world = this.world; + final ProtoChunk protoChunk = (ProtoChunk)this.fromChunk; + chunk = new LevelChunk(this.world, protoChunk, (final LevelChunk unused) -> { + ChunkStatusTasks.postLoadProtoChunk(world, protoChunk.getEntities(), protoChunk.getPos()); // Paper - pass chunk pos + }); + this.chunkHolder.replaceProtoChunk(new ImposterProtoChunk(chunk, false)); + } + + final NewChunkHolder chunkHolder = this.chunkHolder; + + chunk.setFullStatus(chunkHolder::getChunkStatus); + chunk.runPostLoad(); + // Unlike Vanilla, we load the entity chunk here, as we load the NBT in empty status (unlike Vanilla) + // This brings entity addition back in line with older versions of the game + // Since we load the NBT in the empty status, this will never block for I/O + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager.getOrCreateEntityChunk(this.chunkX, this.chunkZ, false); + + // we don't need the entitiesInLevel, not sure why it's there + chunk.setLoaded(true); + chunk.registerAllBlockEntitiesAfterLevelLoad(); + chunk.registerTickContainerInLevel(this.world); + } catch (final Throwable throwable) { + this.complete(null, throwable); + return; + } + this.complete(chunk, null); + } + + protected volatile boolean scheduled; + protected static final VarHandle SCHEDULED_HANDLE = ConcurrentUtil.getVarHandle(ChunkFullTask.class, "scheduled", boolean.class); + + @Override + public boolean isScheduled() { + return this.scheduled; + } + + @Override + public void schedule() { + if ((boolean)SCHEDULED_HANDLE.getAndSet((ChunkFullTask)this, true)) { + throw new IllegalStateException("Cannot double call schedule()"); + } + this.convertToFullTask.queue(); + } + + @Override + public void cancel() { + if (this.convertToFullTask.cancel()) { + this.complete(null, null); + } + } + + @Override + public PrioritisedExecutor.Priority getPriority() { + return this.convertToFullTask.getPriority(); + } + + @Override + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.convertToFullTask.lowerPriority(priority); + } + + @Override + public void setPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.convertToFullTask.setPriority(priority); + } + + @Override + public void raisePriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.convertToFullTask.raisePriority(priority); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLightTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLightTask.java new file mode 100644 index 0000000000000000000000000000000000000000..7c2e6752228fac175c4aa97fa3d817b8a938922f --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLightTask.java @@ -0,0 +1,181 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.PriorityHolder; +import ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine; +import ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface; +import ca.spottedleaf.moonrise.patches.starlight.light.StarLightLightingProvider; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.ProtoChunk; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; +import java.util.function.BooleanSupplier; + +public final class ChunkLightTask extends ChunkProgressionTask { + + private static final Logger LOGGER = LogManager.getLogger(); + + private final ChunkAccess fromChunk; + + private final LightTaskPriorityHolder priorityHolder; + + public ChunkLightTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, final int chunkZ, + final ChunkAccess chunk, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ); + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.priorityHolder = new LightTaskPriorityHolder(priority, this); + this.fromChunk = chunk; + } + + @Override + public boolean isScheduled() { + return this.priorityHolder.isScheduled(); + } + + @Override + public ChunkStatus getTargetStatus() { + return ChunkStatus.LIGHT; + } + + @Override + public void schedule() { + this.priorityHolder.schedule(); + } + + @Override + public void cancel() { + this.priorityHolder.cancel(); + } + + @Override + public PrioritisedExecutor.Priority getPriority() { + return this.priorityHolder.getPriority(); + } + + @Override + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + this.priorityHolder.raisePriority(priority); + } + + @Override + public void setPriority(final PrioritisedExecutor.Priority priority) { + this.priorityHolder.setPriority(priority); + } + + @Override + public void raisePriority(final PrioritisedExecutor.Priority priority) { + this.priorityHolder.raisePriority(priority); + } + + private static final class LightTaskPriorityHolder extends PriorityHolder { + + private final ChunkLightTask task; + + private LightTaskPriorityHolder(final PrioritisedExecutor.Priority priority, final ChunkLightTask task) { + super(priority); + this.task = task; + } + + @Override + protected void cancelScheduled() { + final ChunkLightTask task = this.task; + task.complete(null, null); + } + + @Override + protected PrioritisedExecutor.Priority getScheduledPriority() { + final ChunkLightTask task = this.task; + return ((StarLightLightingProvider)task.world.getChunkSource().getLightEngine()).starlight$getLightEngine().getServerLightQueue().getPriority(task.chunkX, task.chunkZ); + } + + @Override + protected void scheduleTask(final PrioritisedExecutor.Priority priority) { + final ChunkLightTask task = this.task; + final StarLightInterface starLightInterface = ((StarLightLightingProvider)task.world.getChunkSource().getLightEngine()).starlight$getLightEngine(); + final StarLightInterface.ServerLightQueue lightQueue = starLightInterface.getServerLightQueue(); + lightQueue.queueChunkLightTask(new ChunkPos(task.chunkX, task.chunkZ), new LightTask(starLightInterface, task), priority); + lightQueue.setPriority(task.chunkX, task.chunkZ, priority); + } + + @Override + protected void lowerPriorityScheduled(final PrioritisedExecutor.Priority priority) { + final ChunkLightTask task = this.task; + final StarLightInterface starLightInterface = ((StarLightLightingProvider)task.world.getChunkSource().getLightEngine()).starlight$getLightEngine(); + final StarLightInterface.ServerLightQueue lightQueue = starLightInterface.getServerLightQueue(); + lightQueue.lowerPriority(task.chunkX, task.chunkZ, priority); + } + + @Override + protected void setPriorityScheduled(final PrioritisedExecutor.Priority priority) { + final ChunkLightTask task = this.task; + final StarLightInterface starLightInterface = ((StarLightLightingProvider)task.world.getChunkSource().getLightEngine()).starlight$getLightEngine(); + final StarLightInterface.ServerLightQueue lightQueue = starLightInterface.getServerLightQueue(); + lightQueue.setPriority(task.chunkX, task.chunkZ, priority); + } + + @Override + protected void raisePriorityScheduled(final PrioritisedExecutor.Priority priority) { + final ChunkLightTask task = this.task; + final StarLightInterface starLightInterface = ((StarLightLightingProvider)task.world.getChunkSource().getLightEngine()).starlight$getLightEngine(); + final StarLightInterface.ServerLightQueue lightQueue = starLightInterface.getServerLightQueue(); + lightQueue.raisePriority(task.chunkX, task.chunkZ, priority); + } + } + + private static final class LightTask implements BooleanSupplier { + + private final StarLightInterface lightEngine; + private final ChunkLightTask task; + + public LightTask(final StarLightInterface lightEngine, final ChunkLightTask task) { + this.lightEngine = lightEngine; + this.task = task; + } + + @Override + public boolean getAsBoolean() { + final ChunkLightTask task = this.task; + // executed on light thread + if (!task.priorityHolder.markExecuting()) { + // cancelled + return false; + } + + try { + final Boolean[] emptySections = StarLightEngine.getEmptySectionsForChunk(task.fromChunk); + + if (task.fromChunk.isLightCorrect() && task.fromChunk.getPersistedStatus().isOrAfter(ChunkStatus.LIGHT)) { + this.lightEngine.forceLoadInChunk(task.fromChunk, emptySections); + this.lightEngine.checkChunkEdges(task.chunkX, task.chunkZ); + } else { + task.fromChunk.setLightCorrect(false); + this.lightEngine.lightChunk(task.fromChunk, emptySections); + task.fromChunk.setLightCorrect(true); + } + // we need to advance status + if (task.fromChunk instanceof ProtoChunk chunk && chunk.getPersistedStatus() == ChunkStatus.LIGHT.getParent()) { + chunk.setPersistedStatus(ChunkStatus.LIGHT); + } + } catch (final Throwable thr) { + LOGGER.fatal( + "Failed to light chunk " + task.fromChunk.getPos().toString() + + " in world '" + WorldUtil.getWorldName(this.lightEngine.getWorld()) + "'", thr + ); + + task.complete(null, thr); + + return true; + } + + task.complete(task.fromChunk, null); + return true; + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLoadTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLoadTask.java new file mode 100644 index 0000000000000000000000000000000000000000..1ab93f219246d0b4dcdfd0f685f47c13091425f8 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkLoadTask.java @@ -0,0 +1,487 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.lock.ReentrantAreaLock; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystemConverters; +import ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystemFeatures; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder; +import net.minecraft.core.registries.Registries; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.ProtoChunk; +import net.minecraft.world.level.chunk.UpgradeData; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.chunk.storage.ChunkSerializer; +import net.minecraft.world.level.levelgen.blending.BlendingData; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.invoke.VarHandle; +import java.util.Map; +import java.util.concurrent.atomic.AtomicInteger; +import java.util.function.Consumer; + +public final class ChunkLoadTask extends ChunkProgressionTask { + + private static final Logger LOGGER = LoggerFactory.getLogger(ChunkLoadTask.class); + + private final NewChunkHolder chunkHolder; + private final ChunkDataLoadTask loadTask; + + private volatile boolean cancelled; + private NewChunkHolder.GenericDataLoadTaskCallback entityLoadTask; + private NewChunkHolder.GenericDataLoadTaskCallback poiLoadTask; + private GenericDataLoadTask.TaskResult loadResult; + private final AtomicInteger taskCountToComplete = new AtomicInteger(3); // one for poi, one for entity, and one for chunk data + + public ChunkLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, final int chunkZ, + final NewChunkHolder chunkHolder, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ); + this.chunkHolder = chunkHolder; + this.loadTask = new ChunkDataLoadTask(scheduler, world, chunkX, chunkZ, priority); + this.loadTask.addCallback((final GenericDataLoadTask.TaskResult result) -> { + ChunkLoadTask.this.loadResult = result; // must be before getAndDecrement + ChunkLoadTask.this.tryCompleteLoad(); + }); + } + + private void tryCompleteLoad() { + final int count = this.taskCountToComplete.decrementAndGet(); + if (count == 0) { + final GenericDataLoadTask.TaskResult result = this.cancelled ? null : this.loadResult; // only after the getAndDecrement + ChunkLoadTask.this.complete(result == null ? null : result.left(), result == null ? null : result.right()); + } else if (count < 0) { + throw new IllegalStateException("Called tryCompleteLoad() too many times"); + } + } + + @Override + public ChunkStatus getTargetStatus() { + return ChunkStatus.EMPTY; + } + + private boolean scheduled; + + @Override + public boolean isScheduled() { + return this.scheduled; + } + + @Override + public void schedule() { + final NewChunkHolder.GenericDataLoadTaskCallback entityLoadTask; + final NewChunkHolder.GenericDataLoadTaskCallback poiLoadTask; + + final Consumer> scheduleLoadTask = (final GenericDataLoadTask.TaskResult result) -> { + ChunkLoadTask.this.tryCompleteLoad(); + }; + + // NOTE: it is IMPOSSIBLE for getOrLoadEntityData/getOrLoadPoiData to complete synchronously, because + // they must schedule a task to off main or to on main to complete + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + if (this.scheduled) { + throw new IllegalStateException("schedule() called twice"); + } + this.scheduled = true; + if (this.cancelled) { + return; + } + if (!this.chunkHolder.isEntityChunkNBTLoaded()) { + entityLoadTask = this.chunkHolder.getOrLoadEntityData((Consumer)scheduleLoadTask); + } else { + entityLoadTask = null; + this.tryCompleteLoad(); + } + + if (!this.chunkHolder.isPoiChunkLoaded()) { + poiLoadTask = this.chunkHolder.getOrLoadPoiData((Consumer)scheduleLoadTask); + } else { + poiLoadTask = null; + this.tryCompleteLoad(); + } + + this.entityLoadTask = entityLoadTask; + this.poiLoadTask = poiLoadTask; + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + + if (entityLoadTask != null) { + entityLoadTask.schedule(); + } + + if (poiLoadTask != null) { + poiLoadTask.schedule(); + } + + this.loadTask.schedule(false); + } + + @Override + public void cancel() { + // must be before load task access, so we can synchronise with the writes to the fields + final boolean scheduled; + final ReentrantAreaLock.Node schedulingLock = this.scheduler.schedulingLockArea.lock(this.chunkX, this.chunkZ); + try { + // must read field here, as it may be written later conucrrently - + // we need to know if we scheduled _before_ cancellation + scheduled = this.scheduled; + this.cancelled = true; + } finally { + this.scheduler.schedulingLockArea.unlock(schedulingLock); + } + + /* + Note: The entityLoadTask/poiLoadTask do not complete when cancelled, + so we need to manually try to complete in those cases + It is also important to note that we set the cancelled field first, just in case + the chunk load task attempts to complete with a non-null value + */ + + if (scheduled) { + // since we scheduled, we need to cancel the tasks + if (this.entityLoadTask != null) { + if (this.entityLoadTask.cancel()) { + this.tryCompleteLoad(); + } + } + if (this.poiLoadTask != null) { + if (this.poiLoadTask.cancel()) { + this.tryCompleteLoad(); + } + } + } else { + // since nothing was scheduled, we need to decrement the task count here ourselves + + // for entity load task + this.tryCompleteLoad(); + + // for poi load task + this.tryCompleteLoad(); + } + this.loadTask.cancel(); + } + + @Override + public PrioritisedExecutor.Priority getPriority() { + return this.loadTask.getPriority(); + } + + @Override + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + final EntityDataLoadTask entityLoad = this.chunkHolder.getEntityDataLoadTask(); + if (entityLoad != null) { + entityLoad.lowerPriority(priority); + } + + final PoiDataLoadTask poiLoad = this.chunkHolder.getPoiDataLoadTask(); + + if (poiLoad != null) { + poiLoad.lowerPriority(priority); + } + + this.loadTask.lowerPriority(priority); + } + + @Override + public void setPriority(final PrioritisedExecutor.Priority priority) { + final EntityDataLoadTask entityLoad = this.chunkHolder.getEntityDataLoadTask(); + if (entityLoad != null) { + entityLoad.setPriority(priority); + } + + final PoiDataLoadTask poiLoad = this.chunkHolder.getPoiDataLoadTask(); + + if (poiLoad != null) { + poiLoad.setPriority(priority); + } + + this.loadTask.setPriority(priority); + } + + @Override + public void raisePriority(final PrioritisedExecutor.Priority priority) { + final EntityDataLoadTask entityLoad = this.chunkHolder.getEntityDataLoadTask(); + if (entityLoad != null) { + entityLoad.raisePriority(priority); + } + + final PoiDataLoadTask poiLoad = this.chunkHolder.getPoiDataLoadTask(); + + if (poiLoad != null) { + poiLoad.raisePriority(priority); + } + + this.loadTask.raisePriority(priority); + } + + protected static abstract class CallbackDataLoadTask extends GenericDataLoadTask { + + private TaskResult result; + private final MultiThreadedQueue>> waiters = new MultiThreadedQueue<>(); + + protected volatile boolean completed; + protected static final VarHandle COMPLETED_HANDLE = ConcurrentUtil.getVarHandle(CallbackDataLoadTask.class, "completed", boolean.class); + + protected CallbackDataLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final RegionFileIOThread.RegionFileType type, + final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ, type, priority); + } + + public void addCallback(final Consumer> consumer) { + if (!this.waiters.add(consumer)) { + try { + consumer.accept(this.result); + } catch (final Throwable throwable) { + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Consumer", ChunkTaskScheduler.stringIfNull(consumer), + "Completed throwable", ChunkTaskScheduler.stringIfNull(this.result.right()), + "CallbackDataLoadTask impl", this.getClass().getName() + ), throwable); + } + } + } + + @Override + protected void onComplete(final TaskResult result) { + if ((boolean)COMPLETED_HANDLE.getAndSet((CallbackDataLoadTask)this, (boolean)true)) { + throw new IllegalStateException("Already completed"); + } + this.result = result; + Consumer> consumer; + while ((consumer = this.waiters.pollOrBlockAdds()) != null) { + try { + consumer.accept(result); + } catch (final Throwable throwable) { + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Consumer", ChunkTaskScheduler.stringIfNull(consumer), + "Completed throwable", ChunkTaskScheduler.stringIfNull(result.right()), + "CallbackDataLoadTask impl", this.getClass().getName() + ), throwable); + return; + } + } + } + } + + private static final class ChunkDataLoadTask extends CallbackDataLoadTask { + private ChunkDataLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ, RegionFileIOThread.RegionFileType.CHUNK_DATA, priority); + } + + @Override + protected boolean hasOffMain() { + return true; + } + + @Override + protected boolean hasOnMain() { + return true; + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOffMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + return this.scheduler.loadExecutor.createTask(run, priority); + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOnMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + return this.scheduler.createChunkTask(this.chunkX, this.chunkZ, run, priority); + } + + @Override + protected TaskResult completeOnMainOffMain(final CompoundTag data, final Throwable throwable) { + if (throwable != null) { + return new TaskResult<>(null, throwable); + } + if (data == null) { + return new TaskResult<>(this.getEmptyChunk(), null); + } + + if (ChunkSystemFeatures.supportsAsyncChunkDeserialization()) { + return this.deserialize(data); + } + // need to deserialize on main thread + return null; + } + + private ProtoChunk getEmptyChunk() { + return new ProtoChunk( + new ChunkPos(this.chunkX, this.chunkZ), UpgradeData.EMPTY, this.world, + this.world.registryAccess().registryOrThrow(Registries.BIOME), (BlendingData)null + ); + } + + @Override + protected TaskResult runOffMain(final CompoundTag data, final Throwable throwable) { + if (throwable != null) { + LOGGER.error("Failed to load chunk data for task: " + this.toString() + ", chunk data will be lost", throwable); + return new TaskResult<>(null, null); + } + + if (data == null) { + return new TaskResult<>(null, null); + } + + try { + // run converters + final CompoundTag converted = this.world.getChunkSource().chunkMap.upgradeChunkTag(data, new net.minecraft.world.level.ChunkPos(this.chunkX, this.chunkZ)); + + return new TaskResult<>(converted, null); + } catch (final Throwable thr2) { + LOGGER.error("Failed to parse chunk data for task: " + this.toString() + ", chunk data will be lost", thr2); + return new TaskResult<>(null, null); + } + } + + private TaskResult deserialize(final CompoundTag data) { + try { + final ChunkAccess deserialized = ChunkSerializer.read( + this.world, this.world.getPoiManager(), this.world.getChunkSource().chunkMap.storageInfo(), new ChunkPos(this.chunkX, this.chunkZ), data + ); + return new TaskResult<>(deserialized, null); + } catch (final Throwable thr2) { + LOGGER.error("Failed to parse chunk data for task: " + this.toString() + ", chunk data will be lost", thr2); + return new TaskResult<>(this.getEmptyChunk(), null); + } + } + + @Override + protected TaskResult runOnMain(final CompoundTag data, final Throwable throwable) { + // data != null && throwable == null + if (ChunkSystemFeatures.supportsAsyncChunkDeserialization()) { + throw new UnsupportedOperationException(); + } + return this.deserialize(data); + } + } + + public static final class PoiDataLoadTask extends CallbackDataLoadTask { + + public PoiDataLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ, RegionFileIOThread.RegionFileType.POI_DATA, priority); + } + + @Override + protected boolean hasOffMain() { + return true; + } + + @Override + protected boolean hasOnMain() { + return false; + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOffMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + return this.scheduler.loadExecutor.createTask(run, priority); + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOnMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + throw new UnsupportedOperationException(); + } + + @Override + protected TaskResult completeOnMainOffMain(final PoiChunk data, final Throwable throwable) { + throw new UnsupportedOperationException(); + } + + @Override + protected TaskResult runOffMain(final CompoundTag data, final Throwable throwable) { + if (throwable != null) { + LOGGER.error("Failed to load poi data for task: " + this.toString() + ", poi data will be lost", throwable); + return new TaskResult<>(PoiChunk.empty(this.world, this.chunkX, this.chunkZ), null); + } + + if (data == null || data.isEmpty()) { + // nothing to do + return new TaskResult<>(PoiChunk.empty(this.world, this.chunkX, this.chunkZ), null); + } + + try { + // run converters + final CompoundTag converted = ChunkSystemConverters.convertPoiCompoundTag(data, this.world); + + // now we need to parse it + return new TaskResult<>(PoiChunk.parse(this.world, this.chunkX, this.chunkZ, converted), null); + } catch (final Throwable thr2) { + LOGGER.error("Failed to run parse poi data for task: " + this.toString() + ", poi data will be lost", thr2); + return new TaskResult<>(PoiChunk.empty(this.world, this.chunkX, this.chunkZ), null); + } + } + + @Override + protected TaskResult runOnMain(final PoiChunk data, final Throwable throwable) { + throw new UnsupportedOperationException(); + } + } + + public static final class EntityDataLoadTask extends CallbackDataLoadTask { + + public EntityDataLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ, RegionFileIOThread.RegionFileType.ENTITY_DATA, priority); + } + + @Override + protected boolean hasOffMain() { + return true; + } + + @Override + protected boolean hasOnMain() { + return false; + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOffMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + return this.scheduler.loadExecutor.createTask(run, priority); + } + + @Override + protected PrioritisedExecutor.PrioritisedTask createOnMain(final Runnable run, final PrioritisedExecutor.Priority priority) { + throw new UnsupportedOperationException(); + } + + @Override + protected TaskResult completeOnMainOffMain(final CompoundTag data, final Throwable throwable) { + throw new UnsupportedOperationException(); + } + + @Override + protected TaskResult runOffMain(final CompoundTag data, final Throwable throwable) { + if (throwable != null) { + LOGGER.error("Failed to load entity data for task: " + this.toString() + ", entity data will be lost", throwable); + return new TaskResult<>(null, null); + } + + if (data == null || data.isEmpty()) { + // nothing to do + return new TaskResult<>(null, null); + } + + try { + return new TaskResult<>(ChunkSystemConverters.convertEntityChunkCompoundTag(data, this.world), null); + } catch (final Throwable thr2) { + LOGGER.error("Failed to run converters for entity data for task: " + this.toString() + ", entity data will be lost", thr2); + return new TaskResult<>(null, thr2); + } + } + + @Override + protected TaskResult runOnMain(final CompoundTag data, final Throwable throwable) { + throw new UnsupportedOperationException(); + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkProgressionTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkProgressionTask.java new file mode 100644 index 0000000000000000000000000000000000000000..70e900b0f9c131900bf8b3f3ecbfbd5df5361205 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkProgressionTask.java @@ -0,0 +1,101 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import java.lang.invoke.VarHandle; +import java.util.Map; +import java.util.function.BiConsumer; + +public abstract class ChunkProgressionTask { + + private final MultiThreadedQueue> waiters = new MultiThreadedQueue<>(); + private ChunkAccess completedChunk; + private Throwable completedThrowable; + + protected final ChunkTaskScheduler scheduler; + protected final ServerLevel world; + protected final int chunkX; + protected final int chunkZ; + + protected volatile boolean completed; + protected static final VarHandle COMPLETED_HANDLE = ConcurrentUtil.getVarHandle(ChunkProgressionTask.class, "completed", boolean.class); + + protected ChunkProgressionTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, final int chunkZ) { + this.scheduler = scheduler; + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + } + + // Used only for debug json + public abstract boolean isScheduled(); + + // Note: It is the responsibility of the task to set the chunk's status once it has completed + public abstract ChunkStatus getTargetStatus(); + + /* Only executed once */ + /* Implementations must be prepared to handle cases where cancel() is called before schedule() */ + public abstract void schedule(); + + /* May be called multiple times */ + public abstract void cancel(); + + public abstract PrioritisedExecutor.Priority getPriority(); + + /* Schedule lock is always held for the priority update calls */ + + public abstract void lowerPriority(final PrioritisedExecutor.Priority priority); + + public abstract void setPriority(final PrioritisedExecutor.Priority priority); + + public abstract void raisePriority(final PrioritisedExecutor.Priority priority); + + public final void onComplete(final BiConsumer onComplete) { + if (!this.waiters.add(onComplete)) { + try { + onComplete.accept(this.completedChunk, this.completedThrowable); + } catch (final Throwable throwable) { + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Consumer", ChunkTaskScheduler.stringIfNull(onComplete), + "Completed throwable", ChunkTaskScheduler.stringIfNull(this.completedThrowable) + ), throwable); + } + } + } + + protected final void complete(final ChunkAccess chunk, final Throwable throwable) { + try { + this.complete0(chunk, throwable); + } catch (final Throwable thr2) { + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Completed throwable", ChunkTaskScheduler.stringIfNull(throwable) + ), thr2); + } + } + + private void complete0(final ChunkAccess chunk, final Throwable throwable) { + if ((boolean)COMPLETED_HANDLE.getAndSet((ChunkProgressionTask)this, (boolean)true)) { + throw new IllegalStateException("Already completed"); + } + this.completedChunk = chunk; + this.completedThrowable = throwable; + + BiConsumer consumer; + while ((consumer = this.waiters.pollOrBlockAdds()) != null) { + consumer.accept(chunk, throwable); + } + } + + @Override + public String toString() { + return "ChunkProgressionTask{class: " + this.getClass().getName() + ", for world: " + WorldUtil.getWorldName(this.world) + + ", chunk: (" + this.chunkX + "," + this.chunkZ + "), hashcode: " + System.identityHashCode(this) + ", priority: " + this.getPriority() + + ", status: " + this.getTargetStatus().toString() + ", scheduled: " + this.isScheduled() + "}"; + } +} \ No newline at end of file diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkUpgradeGenericStatusTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkUpgradeGenericStatusTask.java new file mode 100644 index 0000000000000000000000000000000000000000..2c17d5589f15f1155be08be670d29acbe954a8fa --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/ChunkUpgradeGenericStatusTask.java @@ -0,0 +1,217 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkStatus; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import net.minecraft.server.level.ChunkHolder; +import net.minecraft.server.level.ChunkMap; +import net.minecraft.server.level.GenerationChunkHolder; +import net.minecraft.server.level.ServerChunkCache; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.util.StaticCache2D; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.ProtoChunk; +import net.minecraft.world.level.chunk.status.ChunkPyramid; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.chunk.status.WorldGenContext; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.invoke.VarHandle; +import java.util.List; +import java.util.Map; +import java.util.concurrent.CompletableFuture; + +public final class ChunkUpgradeGenericStatusTask extends ChunkProgressionTask implements Runnable { + + private static final Logger LOGGER = LoggerFactory.getLogger(ChunkUpgradeGenericStatusTask.class); + + private final ChunkAccess fromChunk; + private final ChunkStatus fromStatus; + private final ChunkStatus toStatus; + private final StaticCache2D neighbours; + + private final PrioritisedExecutor.PrioritisedTask generateTask; + + public ChunkUpgradeGenericStatusTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final ChunkAccess chunk, final StaticCache2D neighbours, + final ChunkStatus toStatus, final PrioritisedExecutor.Priority priority) { + super(scheduler, world, chunkX, chunkZ); + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.fromChunk = chunk; + this.fromStatus = chunk.getPersistedStatus(); + this.toStatus = toStatus; + this.neighbours = neighbours; + if (((ChunkSystemChunkStatus)this.toStatus).moonrise$isParallelCapable()) { + this.generateTask = this.scheduler.parallelGenExecutor.createTask(this, priority); + } else { + final int writeRadius = ((ChunkSystemChunkStatus)this.toStatus).moonrise$getWriteRadius(); + if (writeRadius < 0) { + this.generateTask = this.scheduler.radiusAwareScheduler.createInfiniteRadiusTask(this, priority); + } else { + this.generateTask = this.scheduler.radiusAwareScheduler.createTask(chunkX, chunkZ, writeRadius, this, priority); + } + } + } + + @Override + public ChunkStatus getTargetStatus() { + return this.toStatus; + } + + private boolean isEmptyTask() { + // must use fromStatus here to avoid any race condition with run() overwriting the status + final boolean generation = !this.fromStatus.isOrAfter(this.toStatus); + return (generation && ((ChunkSystemChunkStatus)this.toStatus).moonrise$isEmptyGenStatus()) || (!generation && ((ChunkSystemChunkStatus)this.toStatus).moonrise$isEmptyLoadStatus()); + } + + @Override + public void run() { + final ChunkAccess chunk = this.fromChunk; + + final ServerChunkCache serverChunkCache = this.world.getChunkSource(); + final ChunkMap chunkMap = serverChunkCache.chunkMap; + + final CompletableFuture completeFuture; + + final boolean generation; + boolean completing = false; + + // note: should optimise the case where the chunk does not need to execute the status, because + // schedule() calls this synchronously if it will run through that path + + final WorldGenContext ctx = chunkMap.worldGenContext; + try { + generation = !chunk.getPersistedStatus().isOrAfter(this.toStatus); + if (generation) { + if (((ChunkSystemChunkStatus)this.toStatus).moonrise$isEmptyGenStatus()) { + if (chunk instanceof ProtoChunk) { + ((ProtoChunk)chunk).setPersistedStatus(this.toStatus); + } + completing = true; + this.complete(chunk, null); + return; + } + completeFuture = ChunkPyramid.GENERATION_PYRAMID.getStepTo(this.toStatus).apply(ctx, this.neighbours, this.fromChunk) + .whenComplete((final ChunkAccess either, final Throwable throwable) -> { + if (either instanceof ProtoChunk proto) { + proto.setPersistedStatus(ChunkUpgradeGenericStatusTask.this.toStatus); + } + } + ); + } else { + if (((ChunkSystemChunkStatus)this.toStatus).moonrise$isEmptyLoadStatus()) { + completing = true; + this.complete(chunk, null); + return; + } + completeFuture = ChunkPyramid.LOADING_PYRAMID.getStepTo(this.toStatus).apply(ctx, this.neighbours, this.fromChunk); + } + } catch (final Throwable throwable) { + if (!completing) { + this.complete(null, throwable); + return; + } + + this.scheduler.unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Target status", ChunkTaskScheduler.stringIfNull(this.toStatus), + "From status", ChunkTaskScheduler.stringIfNull(this.fromStatus), + "Generation task", this + ), throwable); + + LOGGER.error( + "Failed to complete status for chunk: status:" + this.toStatus + ", chunk: (" + this.chunkX + + "," + this.chunkZ + "), world: " + WorldUtil.getWorldName(this.world), + throwable + ); + + return; + } + + if (!completeFuture.isDone() && !((ChunkSystemChunkStatus)this.toStatus).moonrise$getWarnedAboutNoImmediateComplete().getAndSet(true)) { + LOGGER.warn("Future status not complete after scheduling: " + this.toStatus.toString() + ", generate: " + generation); + } + + final ChunkAccess newChunk; + + try { + newChunk = completeFuture.join(); + } catch (final Throwable throwable) { + this.complete(null, throwable); + return; + } + + if (newChunk == null) { + this.complete(null, + new IllegalStateException( + "Chunk for status: " + ChunkUpgradeGenericStatusTask.this.toStatus.toString() + + ", generation: " + generation + " should not be null! Future: " + completeFuture + ).fillInStackTrace() + ); + return; + } + + this.complete(newChunk, null); + } + + private volatile boolean scheduled; + private static final VarHandle SCHEDULED_HANDLE = ConcurrentUtil.getVarHandle(ChunkUpgradeGenericStatusTask.class, "scheduled", boolean.class); + + @Override + public boolean isScheduled() { + return this.scheduled; + } + + @Override + public void schedule() { + if ((boolean)SCHEDULED_HANDLE.getAndSet((ChunkUpgradeGenericStatusTask)this, true)) { + throw new IllegalStateException("Cannot double call schedule()"); + } + if (this.isEmptyTask()) { + if (this.generateTask.cancel()) { + this.run(); + } + } else { + this.generateTask.queue(); + } + } + + @Override + public void cancel() { + if (this.generateTask.cancel()) { + this.complete(null, null); + } + } + + @Override + public PrioritisedExecutor.Priority getPriority() { + return this.generateTask.getPriority(); + } + + @Override + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.generateTask.lowerPriority(priority); + } + + @Override + public void setPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.generateTask.setPriority(priority); + } + + @Override + public void raisePriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.generateTask.raisePriority(priority); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/GenericDataLoadTask.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/GenericDataLoadTask.java new file mode 100644 index 0000000000000000000000000000000000000000..7a65d351b448873c6f2c145c975c92be314b876c --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/task/GenericDataLoadTask.java @@ -0,0 +1,673 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.scheduling.task; + +import ca.spottedleaf.concurrentutil.completable.Completable; +import ca.spottedleaf.concurrentutil.executor.Cancellable; +import ca.spottedleaf.concurrentutil.executor.standard.DelayedPrioritisedTask; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.util.ConcurrentUtil; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler; +import ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.server.level.ServerLevel; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.invoke.VarHandle; +import java.util.Map; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicLong; +import java.util.function.BiConsumer; + +public abstract class GenericDataLoadTask { + + private static final Logger LOGGER = LoggerFactory.getLogger(GenericDataLoadTask.class); + + protected static final CompoundTag CANCELLED_DATA = new CompoundTag(); + + // reference count is the upper 32 bits + protected final AtomicLong stageAndReferenceCount = new AtomicLong(STAGE_NOT_STARTED); + + protected static final long STAGE_MASK = 0xFFFFFFFFL; + protected static final long STAGE_CANCELLED = 0xFFFFFFFFL; + protected static final long STAGE_NOT_STARTED = 0L; + protected static final long STAGE_LOADING = 1L; + protected static final long STAGE_PROCESSING = 2L; + protected static final long STAGE_COMPLETED = 3L; + + // for loading data off disk + protected final LoadDataFromDiskTask loadDataFromDiskTask; + // processing off-main + protected final PrioritisedExecutor.PrioritisedTask processOffMain; + // processing on-main + protected final PrioritisedExecutor.PrioritisedTask processOnMain; + + protected final ChunkTaskScheduler scheduler; + protected final ServerLevel world; + protected final int chunkX; + protected final int chunkZ; + protected final RegionFileIOThread.RegionFileType type; + + public GenericDataLoadTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, + final int chunkZ, final RegionFileIOThread.RegionFileType type, + final PrioritisedExecutor.Priority priority) { + this.scheduler = scheduler; + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.type = type; + + final ProcessOnMainTask mainTask; + if (this.hasOnMain()) { + mainTask = new ProcessOnMainTask(); + this.processOnMain = this.createOnMain(mainTask, priority); + } else { + mainTask = null; + this.processOnMain = null; + } + + final ProcessOffMainTask offMainTask; + if (this.hasOffMain()) { + offMainTask = new ProcessOffMainTask(mainTask); + this.processOffMain = this.createOffMain(offMainTask, priority); + } else { + offMainTask = null; + this.processOffMain = null; + } + + if (this.processOffMain == null && this.processOnMain == null) { + throw new IllegalStateException("Illegal class implementation: " + this.getClass().getName() + ", should be able to schedule at least one task!"); + } + + this.loadDataFromDiskTask = new LoadDataFromDiskTask(world, chunkX, chunkZ, type, new DataLoadCallback(offMainTask, mainTask), priority); + } + + public static final record TaskResult(L left, R right) {} + + protected abstract boolean hasOffMain(); + + protected abstract boolean hasOnMain(); + + protected abstract PrioritisedExecutor.PrioritisedTask createOffMain(final Runnable run, final PrioritisedExecutor.Priority priority); + + protected abstract PrioritisedExecutor.PrioritisedTask createOnMain(final Runnable run, final PrioritisedExecutor.Priority priority); + + protected abstract TaskResult runOffMain(final CompoundTag data, final Throwable throwable); + + protected abstract TaskResult runOnMain(final OnMain data, final Throwable throwable); + + protected abstract void onComplete(final TaskResult result); + + protected abstract TaskResult completeOnMainOffMain(final OnMain data, final Throwable throwable); + + @Override + public String toString() { + return "GenericDataLoadTask{class: " + this.getClass().getName() + ", world: " + WorldUtil.getWorldName(this.world) + + ", chunk: (" + this.chunkX + "," + this.chunkZ + "), hashcode: " + System.identityHashCode(this) + ", priority: " + this.getPriority() + + ", type: " + this.type.toString() + "}"; + } + + public PrioritisedExecutor.Priority getPriority() { + if (this.processOnMain != null) { + return this.processOnMain.getPriority(); + } else { + return this.processOffMain.getPriority(); + } + } + + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + // can't lower I/O tasks, we don't know what they affect + if (this.processOffMain != null) { + this.processOffMain.lowerPriority(priority); + } + if (this.processOnMain != null) { + this.processOnMain.lowerPriority(priority); + } + } + + public void setPriority(final PrioritisedExecutor.Priority priority) { + // can't lower I/O tasks, we don't know what they affect + this.loadDataFromDiskTask.raisePriority(priority); + if (this.processOffMain != null) { + this.processOffMain.setPriority(priority); + } + if (this.processOnMain != null) { + this.processOnMain.setPriority(priority); + } + } + + public void raisePriority(final PrioritisedExecutor.Priority priority) { + // can't lower I/O tasks, we don't know what they affect + this.loadDataFromDiskTask.raisePriority(priority); + if (this.processOffMain != null) { + this.processOffMain.raisePriority(priority); + } + if (this.processOnMain != null) { + this.processOnMain.raisePriority(priority); + } + } + + // returns whether scheduleNow() needs to be called + public boolean schedule(final boolean delay) { + if (this.stageAndReferenceCount.get() != STAGE_NOT_STARTED || + !this.stageAndReferenceCount.compareAndSet(STAGE_NOT_STARTED, (1L << 32) | STAGE_LOADING)) { + // try and increment reference count + int failures = 0; + for (long curr = this.stageAndReferenceCount.get();;) { + if ((curr & STAGE_MASK) == STAGE_CANCELLED || (curr & STAGE_MASK) == STAGE_COMPLETED) { + // cancelled or completed, nothing to do here + return false; + } + + if (curr == (curr = this.stageAndReferenceCount.compareAndExchange(curr, curr + (1L << 32)))) { + // successful + return false; + } + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + if (!delay) { + this.scheduleNow(); + return false; + } + return true; + } + + public void scheduleNow() { + this.loadDataFromDiskTask.schedule(); // will schedule the rest + } + + // assumes the current stage cannot be completed + // returns false if cancelled, returns true if can proceed + private boolean advanceStage(final long expect, final long to) { + int failures = 0; + for (long curr = this.stageAndReferenceCount.get();;) { + if ((curr & STAGE_MASK) != expect) { + // must be cancelled + return false; + } + + final long newVal = (curr & ~STAGE_MASK) | to; + if (curr == (curr = this.stageAndReferenceCount.compareAndExchange(curr, newVal))) { + return true; + } + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public boolean cancel() { + int failures = 0; + for (long curr = this.stageAndReferenceCount.get();;) { + if ((curr & STAGE_MASK) == STAGE_COMPLETED || (curr & STAGE_MASK) == STAGE_CANCELLED) { + return false; + } + + if ((curr & STAGE_MASK) == STAGE_NOT_STARTED || (curr & ~STAGE_MASK) == (1L << 32)) { + // no other references, so we can cancel + final long newVal = STAGE_CANCELLED; + if (curr == (curr = this.stageAndReferenceCount.compareAndExchange(curr, newVal))) { + this.loadDataFromDiskTask.cancel(); + if (this.processOffMain != null) { + this.processOffMain.cancel(); + } + if (this.processOnMain != null) { + this.processOnMain.cancel(); + } + this.onComplete(null); + return true; + } + } else { + if ((curr & ~STAGE_MASK) == (0L << 32)) { + throw new IllegalStateException("Reference count cannot be zero here"); + } + // just decrease the reference count + final long newVal = curr - (1L << 32); + if (curr == (curr = this.stageAndReferenceCount.compareAndExchange(curr, newVal))) { + return false; + } + } + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + private final class DataLoadCallback implements BiConsumer { + + private final ProcessOffMainTask offMainTask; + private final ProcessOnMainTask onMainTask; + + public DataLoadCallback(final ProcessOffMainTask offMainTask, final ProcessOnMainTask onMainTask) { + this.offMainTask = offMainTask; + this.onMainTask = onMainTask; + } + + @Override + public void accept(final CompoundTag compoundTag, final Throwable throwable) { + if (GenericDataLoadTask.this.stageAndReferenceCount.get() == STAGE_CANCELLED) { + // don't try to schedule further + return; + } + + try { + if (compoundTag == CANCELLED_DATA) { + // cancelled, except this isn't possible + LOGGER.error("Data callback says cancelled, but stage does not?"); + return; + } + + // get off of the regionfile callback ASAP, no clue what locks are held right now... + if (GenericDataLoadTask.this.processOffMain != null) { + this.offMainTask.data = compoundTag; + this.offMainTask.throwable = throwable; + GenericDataLoadTask.this.processOffMain.queue(); + return; + } else { + // no off-main task, so go straight to main + this.onMainTask.data = (OnMain)compoundTag; + this.onMainTask.throwable = throwable; + GenericDataLoadTask.this.processOnMain.queue(); + } + } catch (final Throwable thr2) { + LOGGER.error("Failed I/O callback for task: " + GenericDataLoadTask.this.toString(), thr2); + GenericDataLoadTask.this.scheduler.unrecoverableChunkSystemFailure( + GenericDataLoadTask.this.chunkX, GenericDataLoadTask.this.chunkZ, Map.of( + "Callback throwable", ChunkTaskScheduler.stringIfNull(throwable) + ), thr2 + ); + } + } + } + + private final class ProcessOffMainTask implements Runnable { + + private CompoundTag data; + private Throwable throwable; + private final ProcessOnMainTask schedule; + + public ProcessOffMainTask(final ProcessOnMainTask schedule) { + this.schedule = schedule; + } + + @Override + public void run() { + if (!GenericDataLoadTask.this.advanceStage(STAGE_LOADING, this.schedule == null ? STAGE_COMPLETED : STAGE_PROCESSING)) { + // cancelled + return; + } + final TaskResult newData = GenericDataLoadTask.this.runOffMain(this.data, this.throwable); + + if (GenericDataLoadTask.this.stageAndReferenceCount.get() == STAGE_CANCELLED) { + // don't try to schedule further + return; + } + + if (this.schedule != null) { + final TaskResult syncComplete = GenericDataLoadTask.this.completeOnMainOffMain(newData.left, newData.right); + + if (syncComplete != null) { + if (GenericDataLoadTask.this.advanceStage(STAGE_PROCESSING, STAGE_COMPLETED)) { + GenericDataLoadTask.this.onComplete(syncComplete); + } // else: cancelled + return; + } + + this.schedule.data = newData.left; + this.schedule.throwable = newData.right; + + GenericDataLoadTask.this.processOnMain.queue(); + } else { + GenericDataLoadTask.this.onComplete((TaskResult)newData); + } + } + } + + private final class ProcessOnMainTask implements Runnable { + + private OnMain data; + private Throwable throwable; + + @Override + public void run() { + if (!GenericDataLoadTask.this.advanceStage(STAGE_PROCESSING, STAGE_COMPLETED)) { + // cancelled + return; + } + final TaskResult result = GenericDataLoadTask.this.runOnMain(this.data, this.throwable); + + GenericDataLoadTask.this.onComplete(result); + } + } + + protected static final class LoadDataFromDiskTask { + + private volatile int priority; + private static final VarHandle PRIORITY_HANDLE = ConcurrentUtil.getVarHandle(LoadDataFromDiskTask.class, "priority", int.class); + + private static final int PRIORITY_EXECUTED = Integer.MIN_VALUE >>> 0; + private static final int PRIORITY_LOAD_SCHEDULED = Integer.MIN_VALUE >>> 1; + private static final int PRIORITY_UNLOAD_SCHEDULED = Integer.MIN_VALUE >>> 2; + + private static final int PRIORITY_FLAGS = ~Character.MAX_VALUE; + + private final int getPriorityVolatile() { + return (int)PRIORITY_HANDLE.getVolatile((LoadDataFromDiskTask)this); + } + + private final int compareAndExchangePriorityVolatile(final int expect, final int update) { + return (int)PRIORITY_HANDLE.compareAndExchange((LoadDataFromDiskTask)this, (int)expect, (int)update); + } + + private final int getAndOrPriorityVolatile(final int val) { + return (int)PRIORITY_HANDLE.getAndBitwiseOr((LoadDataFromDiskTask)this, (int)val); + } + + private final void setPriorityPlain(final int val) { + PRIORITY_HANDLE.set((LoadDataFromDiskTask)this, (int)val); + } + + private final ServerLevel world; + private final int chunkX; + private final int chunkZ; + + private final RegionFileIOThread.RegionFileType type; + private Cancellable dataLoadTask; + private Cancellable dataUnloadCancellable; + private DelayedPrioritisedTask dataUnloadTask; + + private final BiConsumer onComplete; + private final AtomicBoolean scheduled = new AtomicBoolean(); + + // onComplete should be caller sensitive, it may complete synchronously with schedule() - which does + // hold a priority lock. + public LoadDataFromDiskTask(final ServerLevel world, final int chunkX, final int chunkZ, + final RegionFileIOThread.RegionFileType type, + final BiConsumer onComplete, + final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + this.world = world; + this.chunkX = chunkX; + this.chunkZ = chunkZ; + this.type = type; + this.onComplete = onComplete; + this.setPriorityPlain(priority.priority); + } + + private void complete(final CompoundTag data, final Throwable throwable) { + try { + this.onComplete.accept(data, throwable); + } catch (final Throwable thr2) { + ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().unrecoverableChunkSystemFailure(this.chunkX, this.chunkZ, Map.of( + "Completed throwable", ChunkTaskScheduler.stringIfNull(throwable), + "Regionfile type", ChunkTaskScheduler.stringIfNull(this.type) + ), thr2); + } + } + + private boolean markExecuting() { + return (this.getAndOrPriorityVolatile(PRIORITY_EXECUTED) & PRIORITY_EXECUTED) == 0; + } + + private boolean isMarkedExecuted() { + return (this.getPriorityVolatile() & PRIORITY_EXECUTED) != 0; + } + + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + // cancelled or executed + return; + } + + if ((curr & PRIORITY_LOAD_SCHEDULED) != 0) { + RegionFileIOThread.lowerPriority(this.world, this.chunkX, this.chunkZ, this.type, priority); + return; + } + + if ((curr & PRIORITY_UNLOAD_SCHEDULED) != 0) { + if (this.dataUnloadTask != null) { + this.dataUnloadTask.lowerPriority(priority); + } + // no return - we need to propagate priority + } + + if (!priority.isHigherPriority(curr & ~PRIORITY_FLAGS)) { + return; + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority | (curr & PRIORITY_FLAGS)))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public void setPriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + // cancelled or executed + return; + } + + if ((curr & PRIORITY_LOAD_SCHEDULED) != 0) { + RegionFileIOThread.setPriority(this.world, this.chunkX, this.chunkZ, this.type, priority); + return; + } + + if ((curr & PRIORITY_UNLOAD_SCHEDULED) != 0) { + if (this.dataUnloadTask != null) { + this.dataUnloadTask.setPriority(priority); + } + // no return - we need to propagate priority + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority | (curr & PRIORITY_FLAGS)))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public void raisePriority(final PrioritisedExecutor.Priority priority) { + if (!PrioritisedExecutor.Priority.isValidPriority(priority)) { + throw new IllegalArgumentException("Invalid priority " + priority); + } + + int failures = 0; + for (int curr = this.getPriorityVolatile();;) { + if ((curr & PRIORITY_EXECUTED) != 0) { + // cancelled or executed + return; + } + + if ((curr & PRIORITY_LOAD_SCHEDULED) != 0) { + RegionFileIOThread.raisePriority(this.world, this.chunkX, this.chunkZ, this.type, priority); + return; + } + + if ((curr & PRIORITY_UNLOAD_SCHEDULED) != 0) { + if (this.dataUnloadTask != null) { + this.dataUnloadTask.raisePriority(priority); + } + // no return - we need to propagate priority + } + + if (!priority.isLowerPriority(curr & ~PRIORITY_FLAGS)) { + return; + } + + if (curr == (curr = this.compareAndExchangePriorityVolatile(curr, priority.priority | (curr & PRIORITY_FLAGS)))) { + return; + } + + // failed, retry + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + + public void cancel() { + if ((this.getAndOrPriorityVolatile(PRIORITY_EXECUTED) & PRIORITY_EXECUTED) != 0) { + // cancelled or executed already + return; + } + + // OK if we miss the field read, the task cannot complete if the cancelled bit is set and + // the write to dataLoadTask will check for the cancelled bit + if (this.dataUnloadCancellable != null) { + this.dataUnloadCancellable.cancel(); + } + + if (this.dataLoadTask != null) { + this.dataLoadTask.cancel(); + } + + this.complete(CANCELLED_DATA, null); + } + + public void schedule() { + if (this.scheduled.getAndSet(true)) { + throw new IllegalStateException("schedule() called twice"); + } + int priority = this.getPriorityVolatile(); + + if ((priority & PRIORITY_EXECUTED) != 0) { + // cancelled + return; + } + + final BiConsumer consumer = (final CompoundTag data, final Throwable thr) -> { + // because cancelScheduled() cannot actually stop this task from executing in every case, we need + // to mark complete here to ensure we do not double complete + if (LoadDataFromDiskTask.this.markExecuting()) { + LoadDataFromDiskTask.this.complete(data, thr); + } // else: cancelled + }; + + final PrioritisedExecutor.Priority initialPriority = PrioritisedExecutor.Priority.getPriority(priority); + boolean scheduledUnload = false; + + final NewChunkHolder holder = ((ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(this.chunkX, this.chunkZ); + if (holder != null) { + final BiConsumer unloadConsumer = (final CompoundTag data, final Throwable thr) -> { + if (data != null) { + consumer.accept(data, null); + } else { + // need to schedule task + LoadDataFromDiskTask.this.schedule(false, consumer, PrioritisedExecutor.Priority.getPriority(LoadDataFromDiskTask.this.getPriorityVolatile() & ~PRIORITY_FLAGS)); + } + }; + Cancellable unloadCancellable = null; + CompoundTag syncComplete = null; + final NewChunkHolder.UnloadTask unloadTask = holder.getUnloadTask(this.type); // can be null if no task exists + final Completable unloadCompletable = unloadTask == null ? null : unloadTask.completable(); + if (unloadCompletable != null) { + unloadCancellable = unloadCompletable.addAsynchronousWaiter(unloadConsumer); + if (unloadCancellable == null) { + syncComplete = unloadCompletable.getResult(); + } + } + + if (syncComplete != null) { + consumer.accept(syncComplete, null); + return; + } + + if (unloadCancellable != null) { + scheduledUnload = true; + this.dataUnloadCancellable = unloadCancellable; + this.dataUnloadTask = unloadTask.task(); + } + } + + this.schedule(scheduledUnload, consumer, initialPriority); + } + + private void schedule(final boolean scheduledUnload, final BiConsumer consumer, final PrioritisedExecutor.Priority initialPriority) { + int priority = this.getPriorityVolatile(); + + if ((priority & PRIORITY_EXECUTED) != 0) { + // cancelled + return; + } + + if (!scheduledUnload) { + this.dataLoadTask = RegionFileIOThread.loadDataAsync( + this.world, this.chunkX, this.chunkZ, this.type, consumer, + initialPriority.isHigherPriority(PrioritisedExecutor.Priority.NORMAL), initialPriority + ); + } + + int failures = 0; + for (;;) { + if (priority == (priority = this.compareAndExchangePriorityVolatile(priority, priority | (scheduledUnload ? PRIORITY_UNLOAD_SCHEDULED : PRIORITY_LOAD_SCHEDULED)))) { + return; + } + + if ((priority & PRIORITY_EXECUTED) != 0) { + // cancelled or executed + if (this.dataUnloadCancellable != null) { + this.dataUnloadCancellable.cancel(); + } + + if (this.dataLoadTask != null) { + this.dataLoadTask.cancel(); + } + return; + } + + if (scheduledUnload) { + if (this.dataUnloadTask != null) { + this.dataUnloadTask.setPriority(PrioritisedExecutor.Priority.getPriority(priority & ~PRIORITY_FLAGS)); + } + } else { + RegionFileIOThread.setPriority(this.world, this.chunkX, this.chunkZ, this.type, PrioritisedExecutor.Priority.getPriority(priority & ~PRIORITY_FLAGS)); + } + + ++failures; + for (int i = 0; i < failures; ++i) { + ConcurrentUtil.backoff(); + } + } + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/server/ChunkSystemMinecraftServer.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/server/ChunkSystemMinecraftServer.java new file mode 100644 index 0000000000000000000000000000000000000000..21c9562781b05adf3871e522fddb654d75f605ba --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/server/ChunkSystemMinecraftServer.java @@ -0,0 +1,7 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.server; + +public interface ChunkSystemMinecraftServer { + + public void moonrise$setChunkSystemCrash(final Throwable throwable); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/status/ChunkSystemChunkStep.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/status/ChunkSystemChunkStep.java new file mode 100644 index 0000000000000000000000000000000000000000..ea759ce6f10f2a5a4e107ab7528030fe931ba223 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/status/ChunkSystemChunkStep.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.status; + +import net.minecraft.world.level.chunk.status.ChunkStatus; + +public interface ChunkSystemChunkStep { + + public ChunkStatus moonrise$getRequiredStatusAtRadius(final int radius); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/storage/ChunkSystemChunkStorage.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/storage/ChunkSystemChunkStorage.java new file mode 100644 index 0000000000000000000000000000000000000000..129a35ff2db5b3bb6736810fc180796ce55e1875 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/storage/ChunkSystemChunkStorage.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.storage; + +import net.minecraft.world.level.chunk.storage.RegionFileStorage; + +public interface ChunkSystemChunkStorage { + + public RegionFileStorage moonrise$getRegionStorage(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticket/ChunkSystemTicket.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticket/ChunkSystemTicket.java new file mode 100644 index 0000000000000000000000000000000000000000..786e6ad17cd6216ef0aadaa7cf10044a0c19c933 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticket/ChunkSystemTicket.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.ticket; + +public interface ChunkSystemTicket { + + public long moonrise$getRemoveDelay(); + + public void moonrise$setRemoveDelay(final long removeDelay); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticks/ChunkSystemLevelChunkTicks.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticks/ChunkSystemLevelChunkTicks.java new file mode 100644 index 0000000000000000000000000000000000000000..2add7fd15a2210286aeb9af5024263333340d34c --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/ticks/ChunkSystemLevelChunkTicks.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.ticks; + +public interface ChunkSystemLevelChunkTicks { + + public boolean moonrise$isDirty(final long tick); + + public void moonrise$clearDirty(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ChunkSystemSortedArraySet.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ChunkSystemSortedArraySet.java new file mode 100644 index 0000000000000000000000000000000000000000..ce3bb903c9ccb7efa0f004cf79b291dcb1cb7a23 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ChunkSystemSortedArraySet.java @@ -0,0 +1,15 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.util; + +import net.minecraft.util.SortedArraySet; + +public interface ChunkSystemSortedArraySet { + + public SortedArraySet moonrise$copy(); + + public Object[] moonrise$copyBackingArray(); + + public T moonrise$replace(final T object); + + public T moonrise$removeAndGet(final T object); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ParallelSearchRadiusIteration.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ParallelSearchRadiusIteration.java new file mode 100644 index 0000000000000000000000000000000000000000..51c9ed3dbb1787afc8e123b4f8104d54ed7ace89 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/util/ParallelSearchRadiusIteration.java @@ -0,0 +1,320 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.util; + +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import it.unimi.dsi.fastutil.HashCommon; +import it.unimi.dsi.fastutil.longs.LongArrayList; +import it.unimi.dsi.fastutil.longs.LongIterator; +import it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet; +import it.unimi.dsi.fastutil.longs.LongOpenHashSet; +import java.util.Arrays; +import java.util.Objects; + +public class ParallelSearchRadiusIteration { + + // expected that this list returns for a given radius, the set of chunks ordered + // by manhattan distance + private static final long[][] SEARCH_RADIUS_ITERATION_LIST = new long[64+2+1][]; + static { + for (int i = 0; i < SEARCH_RADIUS_ITERATION_LIST.length; ++i) { + // a BFS around -x, -z, +x, +z will give increasing manhatten distance + SEARCH_RADIUS_ITERATION_LIST[i] = generateBFSOrder(i); + } + } + + public static long[] getSearchIteration(final int radius) { + return SEARCH_RADIUS_ITERATION_LIST[radius]; + } + + private static class CustomLongArray extends LongArrayList { + + public CustomLongArray() { + super(); + } + + public CustomLongArray(final int expected) { + super(expected); + } + + public boolean addAll(final CustomLongArray list) { + this.addElements(this.size, list.a, 0, list.size); + return list.size != 0; + } + + public void addUnchecked(final long value) { + this.a[this.size++] = value; + } + + public void forceSize(final int to) { + this.size = to; + } + + @Override + public int hashCode() { + long h = 1L; + + Objects.checkFromToIndex(0, this.size, this.a.length); + + for (int i = 0; i < this.size; ++i) { + h = HashCommon.mix(h + this.a[i]); + } + + return (int)h; + } + + @Override + public boolean equals(final Object o) { + if (o == this) { + return true; + } + + if (!(o instanceof CustomLongArray other)) { + return false; + } + + return this.size == other.size && Arrays.equals(this.a, 0, this.size, other.a, 0, this.size); + } + } + + private static int getDistanceSize(final int radius, final int max) { + if (radius == 0) { + return 1; + } + final int diff = radius - max; + if (diff <= 0) { + return 4*radius; + } + return 4*(max - Math.max(0, diff - 1)); + } + + private static int getQ1DistanceSize(final int radius, final int max) { + if (radius == 0) { + return 1; + } + final int diff = radius - max; + if (diff <= 0) { + return radius+1; + } + return max - diff + 1; + } + + private static final class BasicFIFOLQueue { + + private final long[] values; + private int head, tail; + + public BasicFIFOLQueue(final int cap) { + if (cap <= 1) { + throw new IllegalArgumentException(); + } + this.values = new long[cap]; + } + + public boolean isEmpty() { + return this.head == this.tail; + } + + public long removeFirst() { + final long ret = this.values[this.head]; + + if (this.head == this.tail) { + throw new IllegalStateException(); + } + + ++this.head; + if (this.head == this.values.length) { + this.head = 0; + } + + return ret; + } + + public void addLast(final long value) { + this.values[this.tail++] = value; + + if (this.tail == this.head) { + throw new IllegalStateException(); + } + + if (this.tail == this.values.length) { + this.tail = 0; + } + } + } + + private static CustomLongArray[] makeQ1BFS(final int radius) { + final CustomLongArray[] ret = new CustomLongArray[2 * radius + 1]; + final BasicFIFOLQueue queue = new BasicFIFOLQueue(Math.max(1, 4 * radius) + 1); + final LongOpenHashSet seen = new LongOpenHashSet((radius + 1) * (radius + 1)); + + seen.add(CoordinateUtils.getChunkKey(0, 0)); + queue.addLast(CoordinateUtils.getChunkKey(0, 0)); + while (!queue.isEmpty()) { + final long chunk = queue.removeFirst(); + final int chunkX = CoordinateUtils.getChunkX(chunk); + final int chunkZ = CoordinateUtils.getChunkZ(chunk); + + final int index = Math.abs(chunkX) + Math.abs(chunkZ); + final CustomLongArray list = ret[index]; + if (list != null) { + list.addUnchecked(chunk); + } else { + (ret[index] = new CustomLongArray(getQ1DistanceSize(index, radius))).addUnchecked(chunk); + } + + for (int i = 0; i < 4; ++i) { + // 0 -> -1, 0 + // 1 -> 0, -1 + // 2 -> 1, 0 + // 3 -> 0, 1 + + final int signInv = -(i >>> 1); // 2/3 -> -(1), 0/1 -> -(0) + // note: -n = (~n) + 1 + // (n ^ signInv) - signInv = signInv == 0 ? ((n ^ 0) - 0 = n) : ((n ^ -1) - (-1) = ~n + 1) + + final int axis = i & 1; // 0/2 -> 0, 1/3 -> 1 + final int dx = ((axis - 1) ^ signInv) - signInv; // 0 -> -1, 1 -> 0 + final int dz = (-axis ^ signInv) - signInv; // 0 -> 0, 1 -> -1 + + final int neighbourX = chunkX + dx; + final int neighbourZ = chunkZ + dz; + final long neighbour = CoordinateUtils.getChunkKey(neighbourX, neighbourZ); + + if ((neighbourX | neighbourZ) < 0 || Math.max(Math.abs(neighbourX), Math.abs(neighbourZ)) > radius) { + // don't enqueue out of range + continue; + } + + if (!seen.add(neighbour)) { + continue; + } + + queue.addLast(neighbour); + } + } + + return ret; + } + + // doesn't appear worth optimising this function now, even though it's 70% of the call + private static CustomLongArray spread(final CustomLongArray input, final int size) { + final LongLinkedOpenHashSet notAdded = new LongLinkedOpenHashSet(input); + final CustomLongArray added = new CustomLongArray(size); + + while (!notAdded.isEmpty()) { + if (added.isEmpty()) { + added.addUnchecked(notAdded.removeLastLong()); + continue; + } + + long maxChunk = -1L; + int maxDist = 0; + + // select the chunk from the not yet added set that has the largest minimum distance from + // the current set of added chunks + + for (final LongIterator iterator = notAdded.iterator(); iterator.hasNext();) { + final long chunkKey = iterator.nextLong(); + final int chunkX = CoordinateUtils.getChunkX(chunkKey); + final int chunkZ = CoordinateUtils.getChunkZ(chunkKey); + + int minDist = Integer.MAX_VALUE; + + final int len = added.size(); + final long[] addedArr = added.elements(); + Objects.checkFromToIndex(0, len, addedArr.length); + for (int i = 0; i < len; ++i) { + final long addedKey = addedArr[i]; + final int addedX = CoordinateUtils.getChunkX(addedKey); + final int addedZ = CoordinateUtils.getChunkZ(addedKey); + + // here we use square distance because chunk generation uses neighbours in a square radius + final int dist = Math.max(Math.abs(addedX - chunkX), Math.abs(addedZ - chunkZ)); + + minDist = Math.min(dist, minDist); + } + + if (minDist > maxDist) { + maxDist = minDist; + maxChunk = chunkKey; + } + } + + // move the selected chunk from the not added set to the added set + + if (!notAdded.remove(maxChunk)) { + throw new IllegalStateException(); + } + + added.addUnchecked(maxChunk); + } + + return added; + } + + private static void expandQuadrants(final CustomLongArray input, final int size) { + final int len = input.size(); + final long[] array = input.elements(); + + int writeIndex = size - 1; + for (int i = len - 1; i >= 0; --i) { + final long key = array[i]; + final int chunkX = CoordinateUtils.getChunkX(key); + final int chunkZ = CoordinateUtils.getChunkZ(key); + + if ((chunkX | chunkZ) < 0 || (i != 0 && chunkX == 0 && chunkZ == 0)) { + throw new IllegalStateException(); + } + + // Q4 + if (chunkZ != 0) { + array[writeIndex--] = CoordinateUtils.getChunkKey(chunkX, -chunkZ); + } + // Q3 + if (chunkX != 0 && chunkZ != 0) { + array[writeIndex--] = CoordinateUtils.getChunkKey(-chunkX, -chunkZ); + } + // Q2 + if (chunkX != 0) { + array[writeIndex--] = CoordinateUtils.getChunkKey(-chunkX, chunkZ); + } + + array[writeIndex--] = key; + } + + input.forceSize(size); + + if (writeIndex != -1) { + throw new IllegalStateException(); + } + } + + private static long[] generateBFSOrder(final int radius) { + // by using only the first quadrant, we can reduce the total element size by 4 when spreading + final CustomLongArray[] byDistance = makeQ1BFS(radius); + + // to increase generation parallelism, we want to space the chunks out so that they are not nearby when generating + // this also means we are minimising locality + // but, we need to maintain sorted order by manhatten distance + + // per manhatten distance we transform the chunk list so that each element is maximally spaced out from each other + for (int i = 0, len = byDistance.length; i < len; ++i) { + final CustomLongArray points = byDistance[i]; + final int expectedSize = getDistanceSize(i, radius); + + final CustomLongArray spread = spread(points, expectedSize); + // add in Q2, Q3, Q4 + expandQuadrants(spread, expectedSize); + + byDistance[i] = spread; + } + + // now, rebuild the list so that it still maintains manhatten distance order + final CustomLongArray ret = new CustomLongArray((2 * radius + 1) * (2 * radius + 1)); + + for (final CustomLongArray dist : byDistance) { + ret.addAll(dist); + } + + return ret.elements(); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemEntityGetter.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemEntityGetter.java new file mode 100644 index 0000000000000000000000000000000000000000..ea6b6ed27b212719feb31610faac974899688839 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemEntityGetter.java @@ -0,0 +1,12 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.world; + +import net.minecraft.world.entity.Entity; +import net.minecraft.world.phys.AABB; +import java.util.List; +import java.util.function.Predicate; + +public interface ChunkSystemEntityGetter { + + public List moonrise$getHardCollidingEntities(final Entity entity, final AABB box, final Predicate predicate); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemServerChunkCache.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemServerChunkCache.java new file mode 100644 index 0000000000000000000000000000000000000000..4b9e2fa963c14f65f15407c1814c543c2999ea32 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/world/ChunkSystemServerChunkCache.java @@ -0,0 +1,11 @@ +package ca.spottedleaf.moonrise.patches.chunk_system.world; + +import net.minecraft.world.level.chunk.LevelChunk; + +public interface ChunkSystemServerChunkCache { + + public void moonrise$setFullChunk(final int chunkX, final int chunkZ, final LevelChunk chunk); + + public LevelChunk moonrise$getFullChunkIfLoaded(final int chunkX, final int chunkZ); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/blockstate/StarlightAbstractBlockState.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/blockstate/StarlightAbstractBlockState.java new file mode 100644 index 0000000000000000000000000000000000000000..2bfdf3721db9a45e36538d71cbefcb1d339e6c58 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/blockstate/StarlightAbstractBlockState.java @@ -0,0 +1,9 @@ +package ca.spottedleaf.moonrise.patches.starlight.blockstate; + +public interface StarlightAbstractBlockState { + + public boolean starlight$isConditionallyFullOpaque(); + + public int starlight$getOpacityIfCached(); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/chunk/StarlightChunk.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/chunk/StarlightChunk.java new file mode 100644 index 0000000000000000000000000000000000000000..ed80017c8f257b981d626a37ffc5480d9b326558 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/chunk/StarlightChunk.java @@ -0,0 +1,18 @@ +package ca.spottedleaf.moonrise.patches.starlight.chunk; + +import ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray; + +public interface StarlightChunk { + + public SWMRNibbleArray[] starlight$getBlockNibbles(); + public void starlight$setBlockNibbles(final SWMRNibbleArray[] nibbles); + + public SWMRNibbleArray[] starlight$getSkyNibbles(); + public void starlight$setSkyNibbles(final SWMRNibbleArray[] nibbles); + + public boolean[] starlight$getSkyEmptinessMap(); + public void starlight$setSkyEmptinessMap(final boolean[] emptinessMap); + + public boolean[] starlight$getBlockEmptinessMap(); + public void starlight$setBlockEmptinessMap(final boolean[] emptinessMap); +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/BlockStarLightEngine.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/BlockStarLightEngine.java new file mode 100644 index 0000000000000000000000000000000000000000..154443ac1ee1d6d18b8ff0f40a307d638b213aeb --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/BlockStarLightEngine.java @@ -0,0 +1,277 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import ca.spottedleaf.moonrise.patches.starlight.blockstate.StarlightAbstractBlockState; +import ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk; +import net.minecraft.core.BlockPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.block.state.BlockState; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunkSection; +import net.minecraft.world.level.chunk.LightChunkGetter; +import net.minecraft.world.level.chunk.PalettedContainer; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.phys.shapes.Shapes; +import net.minecraft.world.phys.shapes.VoxelShape; +import java.util.ArrayList; +import java.util.List; +import java.util.Set; + +public final class BlockStarLightEngine extends StarLightEngine { + + public BlockStarLightEngine(final Level world) { + super(false, world); + } + + @Override + protected boolean[] getEmptinessMap(final ChunkAccess chunk) { + return ((StarlightChunk)chunk).starlight$getBlockEmptinessMap(); + } + + @Override + protected void setEmptinessMap(final ChunkAccess chunk, final boolean[] to) { + ((StarlightChunk)chunk).starlight$setBlockEmptinessMap(to); + } + + @Override + protected SWMRNibbleArray[] getNibblesOnChunk(final ChunkAccess chunk) { + return ((StarlightChunk)chunk).starlight$getBlockNibbles(); + } + + @Override + protected void setNibbles(final ChunkAccess chunk, final SWMRNibbleArray[] to) { + ((StarlightChunk)chunk).starlight$setBlockNibbles(to); + } + + @Override + protected boolean canUseChunk(final ChunkAccess chunk) { + return chunk.getPersistedStatus().isOrAfter(ChunkStatus.LIGHT) && (this.isClientSide || chunk.isLightCorrect()); + } + + @Override + protected void setNibbleNull(final int chunkX, final int chunkY, final int chunkZ) { + final SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (nibble != null) { + // de-initialisation is not as straightforward as with sky data, since deinit of block light is typically + // because a block was removed - which can decrease light. with sky data, block breaking can only result + // in increases, and thus the existing sky block check will actually correctly propagate light through + // a null section. so in order to propagate decreases correctly, we can do a couple of things: not remove + // the data section, or do edge checks on ALL axis (x, y, z). however I do not want edge checks running + // for clients at all, as they are expensive. so we don't remove the section, but to maintain the appearence + // of vanilla data management we "hide" them. + nibble.setHidden(); + } + } + + @Override + protected void initNibble(final int chunkX, final int chunkY, final int chunkZ, final boolean extrude, final boolean initRemovedNibbles) { + if (chunkY < this.minLightSection || chunkY > this.maxLightSection || this.getChunkInCache(chunkX, chunkZ) == null) { + return; + } + + final SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (nibble == null) { + if (!initRemovedNibbles) { + throw new IllegalStateException(); + } else { + this.setNibbleInCache(chunkX, chunkY, chunkZ, new SWMRNibbleArray()); + } + } else { + nibble.setNonNull(); + } + } + + @Override + protected final void checkBlock(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ) { + // blocks can change opacity + // blocks can change emitted light + // blocks can change direction of propagation + + final int encodeOffset = this.coordinateOffset; + final int emittedMask = this.emittedLightMask; + + final int currentLevel = this.getLightLevel(worldX, worldY, worldZ); + final BlockState blockState = this.getBlockState(worldX, worldY, worldZ); + final int emittedLevel = blockState.getLightEmission() & emittedMask; + + this.setLightLevel(worldX, worldY, worldZ, emittedLevel); + // this accounts for change in emitted light that would cause an increase + if (emittedLevel != 0) { + this.appendToIncreaseQueue( + ((worldX + (worldZ << 6) + (worldY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (emittedLevel & 0xFL) << (6 + 6 + 16) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque() ? FLAG_HAS_SIDED_TRANSPARENT_BLOCKS : 0) + ); + } + // this also accounts for a change in emitted light that would cause a decrease + // this also accounts for the change of direction of propagation (i.e old block was full transparent, new block is full opaque or vice versa) + // as it checks all neighbours (even if current level is 0) + this.appendToDecreaseQueue( + ((worldX + (worldZ << 6) + (worldY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (currentLevel & 0xFL) << (6 + 6 + 16) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + // always keep sided transparent false here, new block might be conditionally transparent which would + // prevent us from decreasing sources in the directions where the new block is opaque + // if it turns out we were wrong to de-propagate the source, the re-propagate logic WILL always + // catch that and fix it. + ); + // re-propagating neighbours (done by the decrease queue) will also account for opacity changes in this block + } + + protected final BlockPos.MutableBlockPos recalcCenterPos = new BlockPos.MutableBlockPos(); + protected final BlockPos.MutableBlockPos recalcNeighbourPos = new BlockPos.MutableBlockPos(); + + @Override + protected int calculateLightValue(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ, + final int expect) { + final BlockState centerState = this.getBlockState(worldX, worldY, worldZ); + int level = centerState.getLightEmission() & 0xF; + + if (level >= (15 - 1) || level > expect) { + return level; + } + + final int sectionOffset = this.chunkSectionIndexOffset; + final BlockState conditionallyOpaqueState; + int opacity = ((StarlightAbstractBlockState)centerState).starlight$getOpacityIfCached(); + + if (opacity == -1) { + this.recalcCenterPos.set(worldX, worldY, worldZ); + opacity = centerState.getLightBlock(lightAccess.getLevel(), this.recalcCenterPos); + if (((StarlightAbstractBlockState)centerState).starlight$isConditionallyFullOpaque()) { + conditionallyOpaqueState = centerState; + } else { + conditionallyOpaqueState = null; + } + } else if (opacity >= 15) { + return level; + } else { + conditionallyOpaqueState = null; + } + opacity = Math.max(1, opacity); + + for (final AxisDirection direction : AXIS_DIRECTIONS) { + final int offX = worldX + direction.x; + final int offY = worldY + direction.y; + final int offZ = worldZ + direction.z; + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + + final int neighbourLevel = this.getLightLevel(sectionIndex, (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8)); + + if ((neighbourLevel - 1) <= level) { + // don't need to test transparency, we know it wont affect the result. + continue; + } + + final BlockState neighbourState = this.getBlockState(offX, offY, offZ); + if (((StarlightAbstractBlockState)neighbourState).starlight$isConditionallyFullOpaque()) { + // here the block can be conditionally opaque (i.e light cannot propagate from it), so we need to test that + // we don't read the blockstate because most of the time this is false, so using the faster + // known transparency lookup results in a net win + this.recalcNeighbourPos.set(offX, offY, offZ); + final VoxelShape neighbourFace = neighbourState.getFaceOcclusionShape(lightAccess.getLevel(), this.recalcNeighbourPos, direction.opposite.nms); + final VoxelShape thisFace = conditionallyOpaqueState == null ? Shapes.empty() : conditionallyOpaqueState.getFaceOcclusionShape(lightAccess.getLevel(), this.recalcCenterPos, direction.nms); + if (Shapes.faceShapeOccludes(thisFace, neighbourFace)) { + // not allowed to propagate + continue; + } + } + + // passed transparency, + + final int calculated = neighbourLevel - opacity; + level = Math.max(calculated, level); + if (level > expect) { + return level; + } + } + + return level; + } + + @Override + protected void propagateBlockChanges(final LightChunkGetter lightAccess, final ChunkAccess atChunk, final Set positions) { + for (final BlockPos pos : positions) { + this.checkBlock(lightAccess, pos.getX(), pos.getY(), pos.getZ()); + } + + this.performLightDecrease(lightAccess); + } + + protected List getSources(final LightChunkGetter lightAccess, final ChunkAccess chunk) { + final List sources = new ArrayList<>(); + + final int offX = chunk.getPos().x << 4; + final int offZ = chunk.getPos().z << 4; + + final LevelChunkSection[] sections = chunk.getSections(); + for (int sectionY = this.minSection; sectionY <= this.maxSection; ++sectionY) { + final LevelChunkSection section = sections[sectionY - this.minSection]; + if (section == null || section.hasOnlyAir()) { + // no sources in empty sections + continue; + } + if (!section.maybeHas((final BlockState state) -> { + return state.getLightEmission() > 0; + })) { + // no light sources in palette + continue; + } + final PalettedContainer states = section.states; + final int offY = sectionY << 4; + + for (int index = 0; index < (16 * 16 * 16); ++index) { + final BlockState state = states.get(index); + if (state.getLightEmission() <= 0) { + continue; + } + + // index = x | (z << 4) | (y << 8) + sources.add(new BlockPos(offX | (index & 15), offY | (index >>> 8), offZ | ((index >>> 4) & 15))); + } + } + + return sources; + } + + @Override + public void lightChunk(final LightChunkGetter lightAccess, final ChunkAccess chunk, final boolean needsEdgeChecks) { + // setup sources + final int emittedMask = this.emittedLightMask; + final List positions = this.getSources(lightAccess, chunk); + for (int i = 0, len = positions.size(); i < len; ++i) { + final BlockPos pos = positions.get(i); + final BlockState blockState = this.getBlockState(pos.getX(), pos.getY(), pos.getZ()); + final int emittedLight = blockState.getLightEmission() & emittedMask; + + if (emittedLight <= this.getLightLevel(pos.getX(), pos.getY(), pos.getZ())) { + // some other source is brighter + continue; + } + + this.appendToIncreaseQueue( + ((pos.getX() + (pos.getZ() << 6) + (pos.getY() << (6 + 6)) + this.coordinateOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (emittedLight & 0xFL) << (6 + 6 + 16) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque() ? FLAG_HAS_SIDED_TRANSPARENT_BLOCKS : 0) + ); + + + // propagation wont set this for us + this.setLightLevel(pos.getX(), pos.getY(), pos.getZ(), emittedLight); + } + + if (needsEdgeChecks) { + // not required to propagate here, but this will reduce the hit of the edge checks + this.performLightIncrease(lightAccess); + + // verify neighbour edges + this.checkChunkEdges(lightAccess, chunk, this.minLightSection, this.maxLightSection); + } else { + this.propagateNeighbourLevels(lightAccess, chunk, this.minLightSection, this.maxLightSection); + + this.performLightIncrease(lightAccess); + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SWMRNibbleArray.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SWMRNibbleArray.java new file mode 100644 index 0000000000000000000000000000000000000000..4ca68a903e67606fc4ef0bfa9862a73797121c8b --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SWMRNibbleArray.java @@ -0,0 +1,440 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import net.minecraft.world.level.chunk.DataLayer; +import java.util.ArrayDeque; +import java.util.Arrays; + +// SWMR -> Single Writer Multi Reader Nibble Array +public final class SWMRNibbleArray { + + /* + * Null nibble - nibble does not exist, and should not be written to. Just like vanilla - null + * nibbles are always 0 - and they are never written to directly. Only initialised/uninitialised + * nibbles can be written to. + * + * Uninitialised nibble - They are all 0, but the backing array isn't initialised. + * + * Initialised nibble - Has light data. + */ + + protected static final int INIT_STATE_NULL = 0; // null + protected static final int INIT_STATE_UNINIT = 1; // uninitialised + protected static final int INIT_STATE_INIT = 2; // initialised + protected static final int INIT_STATE_HIDDEN = 3; // initialised, but conversion to Vanilla data should be treated as if NULL + + public static final int ARRAY_SIZE = 16 * 16 * 16 / (8/4); // blocks / bytes per block + // this allows us to maintain only 1 byte array when we're not updating + static final ThreadLocal> WORKING_BYTES_POOL = ThreadLocal.withInitial(ArrayDeque::new); + + private static byte[] allocateBytes() { + final byte[] inPool = WORKING_BYTES_POOL.get().pollFirst(); + if (inPool != null) { + return inPool; + } + + return new byte[ARRAY_SIZE]; + } + + private static void freeBytes(final byte[] bytes) { + WORKING_BYTES_POOL.get().addFirst(bytes); + } + + public static SWMRNibbleArray fromVanilla(final DataLayer nibble) { + if (nibble == null) { + return new SWMRNibbleArray(null, true); + } else if (nibble.isEmpty()) { + return new SWMRNibbleArray(); + } else { + return new SWMRNibbleArray(nibble.getData().clone()); // make sure we don't write to the parameter later + } + } + + protected int stateUpdating; + protected volatile int stateVisible; + + protected byte[] storageUpdating; + protected boolean updatingDirty; // only returns whether storageUpdating is dirty + protected volatile byte[] storageVisible; + + public SWMRNibbleArray() { + this(null, false); // lazy init + } + + public SWMRNibbleArray(final byte[] bytes) { + this(bytes, false); + } + + public SWMRNibbleArray(final byte[] bytes, final boolean isNullNibble) { + if (bytes != null && bytes.length != ARRAY_SIZE) { + throw new IllegalArgumentException("Data of wrong length: " + bytes.length); + } + this.stateVisible = this.stateUpdating = bytes == null ? (isNullNibble ? INIT_STATE_NULL : INIT_STATE_UNINIT) : INIT_STATE_INIT; + this.storageUpdating = this.storageVisible = bytes; + } + + public SWMRNibbleArray(final byte[] bytes, final int state) { + if (bytes != null && bytes.length != ARRAY_SIZE) { + throw new IllegalArgumentException("Data of wrong length: " + bytes.length); + } + if (bytes == null && (state == INIT_STATE_INIT || state == INIT_STATE_HIDDEN)) { + throw new IllegalArgumentException("Data cannot be null and have state be initialised"); + } + this.stateUpdating = this.stateVisible = state; + this.storageUpdating = this.storageVisible = bytes; + } + + @Override + public String toString() { + StringBuilder stringBuilder = new StringBuilder(); + stringBuilder.append("State: "); + switch (this.stateVisible) { + case INIT_STATE_NULL: + stringBuilder.append("null"); + break; + case INIT_STATE_UNINIT: + stringBuilder.append("uninitialised"); + break; + case INIT_STATE_INIT: + stringBuilder.append("initialised"); + break; + case INIT_STATE_HIDDEN: + stringBuilder.append("hidden"); + break; + default: + stringBuilder.append("unknown"); + break; + } + stringBuilder.append("\nData:\n"); + + final byte[] data = this.storageVisible; + if (data != null) { + for (int i = 0; i < 4096; ++i) { + // Copied from NibbleArray#toString + final int level = ((data[i >>> 1] >>> ((i & 1) << 2)) & 0xF); + + stringBuilder.append(Integer.toHexString(level)); + if ((i & 15) == 15) { + stringBuilder.append("\n"); + } + + if ((i & 255) == 255) { + stringBuilder.append("\n"); + } + } + } else { + stringBuilder.append("null"); + } + + return stringBuilder.toString(); + } + + public SaveState getSaveState() { + synchronized (this) { + final int state = this.stateVisible; + final byte[] data = this.storageVisible; + if (state == INIT_STATE_NULL) { + return null; + } + if (state == INIT_STATE_UNINIT) { + return new SaveState(null, state); + } + final boolean zero = isAllZero(data); + if (zero) { + return state == INIT_STATE_INIT ? new SaveState(null, INIT_STATE_UNINIT) : null; + } else { + return new SaveState(data.clone(), state); + } + } + } + + protected static boolean isAllZero(final byte[] data) { + for (int i = 0; i < (ARRAY_SIZE >>> 4); ++i) { + byte whole = data[i << 4]; + + for (int k = 1; k < (1 << 4); ++k) { + whole |= data[(i << 4) | k]; + } + + if (whole != 0) { + return false; + } + } + + return true; + } + + // operation type: updating on src, updating on other + public void extrudeLower(final SWMRNibbleArray other) { + if (other.stateUpdating == INIT_STATE_NULL) { + throw new IllegalArgumentException(); + } + + if (other.storageUpdating == null) { + this.setUninitialised(); + return; + } + + final byte[] src = other.storageUpdating; + final byte[] into; + + if (!this.updatingDirty) { + if (this.storageUpdating != null) { + into = this.storageUpdating = allocateBytes(); + } else { + this.storageUpdating = into = allocateBytes(); + this.stateUpdating = INIT_STATE_INIT; + } + this.updatingDirty = true; + } else { + into = this.storageUpdating; + } + + final int start = 0; + final int end = (15 | (15 << 4)) >>> 1; + + /* x | (z << 4) | (y << 8) */ + for (int y = 0; y <= 15; ++y) { + System.arraycopy(src, start, into, y << (8 - 1), end - start + 1); + } + } + + // operation type: updating + public void setFull() { + if (this.stateUpdating != INIT_STATE_HIDDEN) { + this.stateUpdating = INIT_STATE_INIT; + } + Arrays.fill(this.storageUpdating == null || !this.updatingDirty ? this.storageUpdating = allocateBytes() : this.storageUpdating, (byte)-1); + this.updatingDirty = true; + } + + // operation type: updating + public void setZero() { + if (this.stateUpdating != INIT_STATE_HIDDEN) { + this.stateUpdating = INIT_STATE_INIT; + } + Arrays.fill(this.storageUpdating == null || !this.updatingDirty ? this.storageUpdating = allocateBytes() : this.storageUpdating, (byte)0); + this.updatingDirty = true; + } + + // operation type: updating + public void setNonNull() { + if (this.stateUpdating == INIT_STATE_HIDDEN) { + this.stateUpdating = INIT_STATE_INIT; + return; + } + if (this.stateUpdating != INIT_STATE_NULL) { + return; + } + this.stateUpdating = INIT_STATE_UNINIT; + } + + // operation type: updating + public void setNull() { + this.stateUpdating = INIT_STATE_NULL; + if (this.updatingDirty && this.storageUpdating != null) { + freeBytes(this.storageUpdating); + } + this.storageUpdating = null; + this.updatingDirty = false; + } + + // operation type: updating + public void setUninitialised() { + this.stateUpdating = INIT_STATE_UNINIT; + if (this.storageUpdating != null && this.updatingDirty) { + freeBytes(this.storageUpdating); + } + this.storageUpdating = null; + this.updatingDirty = false; + } + + // operation type: updating + public void setHidden() { + if (this.stateUpdating == INIT_STATE_HIDDEN) { + return; + } + if (this.stateUpdating != INIT_STATE_INIT) { + this.setNull(); + } else { + this.stateUpdating = INIT_STATE_HIDDEN; + } + } + + // operation type: updating + public boolean isDirty() { + return this.stateUpdating != this.stateVisible || this.updatingDirty; + } + + // operation type: updating + public boolean isNullNibbleUpdating() { + return this.stateUpdating == INIT_STATE_NULL; + } + + // operation type: visible + public boolean isNullNibbleVisible() { + return this.stateVisible == INIT_STATE_NULL; + } + + // opeartion type: updating + public boolean isUninitialisedUpdating() { + return this.stateUpdating == INIT_STATE_UNINIT; + } + + // operation type: visible + public boolean isUninitialisedVisible() { + return this.stateVisible == INIT_STATE_UNINIT; + } + + // operation type: updating + public boolean isInitialisedUpdating() { + return this.stateUpdating == INIT_STATE_INIT; + } + + // operation type: visible + public boolean isInitialisedVisible() { + return this.stateVisible == INIT_STATE_INIT; + } + + // operation type: updating + public boolean isHiddenUpdating() { + return this.stateUpdating == INIT_STATE_HIDDEN; + } + + // operation type: updating + public boolean isHiddenVisible() { + return this.stateVisible == INIT_STATE_HIDDEN; + } + + // operation type: updating + protected void swapUpdatingAndMarkDirty() { + if (this.updatingDirty) { + return; + } + + if (this.storageUpdating == null) { + this.storageUpdating = allocateBytes(); + Arrays.fill(this.storageUpdating, (byte)0); + } else { + System.arraycopy(this.storageUpdating, 0, this.storageUpdating = allocateBytes(), 0, ARRAY_SIZE); + } + + if (this.stateUpdating != INIT_STATE_HIDDEN) { + this.stateUpdating = INIT_STATE_INIT; + } + this.updatingDirty = true; + } + + // operation type: updating + public boolean updateVisible() { + if (!this.isDirty()) { + return false; + } + + synchronized (this) { + if (this.stateUpdating == INIT_STATE_NULL || this.stateUpdating == INIT_STATE_UNINIT) { + this.storageVisible = null; + } else { + if (this.storageVisible == null) { + this.storageVisible = this.storageUpdating.clone(); + } else { + if (this.storageUpdating != this.storageVisible) { + System.arraycopy(this.storageUpdating, 0, this.storageVisible, 0, ARRAY_SIZE); + } + } + + if (this.storageUpdating != this.storageVisible) { + freeBytes(this.storageUpdating); + } + this.storageUpdating = this.storageVisible; + } + this.updatingDirty = false; + this.stateVisible = this.stateUpdating; + } + + return true; + } + + // operation type: visible + public DataLayer toVanillaNibble() { + synchronized (this) { + switch (this.stateVisible) { + case INIT_STATE_HIDDEN: + case INIT_STATE_NULL: + return null; + case INIT_STATE_UNINIT: + return new DataLayer(); + case INIT_STATE_INIT: + return new DataLayer(this.storageVisible.clone()); + default: + throw new IllegalStateException(); + } + } + } + + /* x | (z << 4) | (y << 8) */ + + // operation type: updating + public int getUpdating(final int x, final int y, final int z) { + return this.getUpdating((x & 15) | ((z & 15) << 4) | ((y & 15) << 8)); + } + + // operation type: updating + public int getUpdating(final int index) { + // indices range from 0 -> 4096 + final byte[] bytes = this.storageUpdating; + if (bytes == null) { + return 0; + } + final byte value = bytes[index >>> 1]; + + // if we are an even index, we want lower 4 bits + // if we are an odd index, we want upper 4 bits + return ((value >>> ((index & 1) << 2)) & 0xF); + } + + // operation type: visible + public int getVisible(final int x, final int y, final int z) { + return this.getVisible((x & 15) | ((z & 15) << 4) | ((y & 15) << 8)); + } + + // operation type: visible + public int getVisible(final int index) { + // indices range from 0 -> 4096 + final byte[] visibleBytes = this.storageVisible; + if (visibleBytes == null) { + return 0; + } + final byte value = visibleBytes[index >>> 1]; + + // if we are an even index, we want lower 4 bits + // if we are an odd index, we want upper 4 bits + return ((value >>> ((index & 1) << 2)) & 0xF); + } + + // operation type: updating + public void set(final int x, final int y, final int z, final int value) { + this.set((x & 15) | ((z & 15) << 4) | ((y & 15) << 8), value); + } + + // operation type: updating + public void set(final int index, final int value) { + if (!this.updatingDirty) { + this.swapUpdatingAndMarkDirty(); + } + final int shift = (index & 1) << 2; + final int i = index >>> 1; + + this.storageUpdating[i] = (byte)((this.storageUpdating[i] & (0xF0 >>> shift)) | (value << shift)); + } + + public static final class SaveState { + + public final byte[] data; + public final int state; + + public SaveState(final byte[] data, final int state) { + this.data = data; + this.state = state; + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SkyStarLightEngine.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SkyStarLightEngine.java new file mode 100644 index 0000000000000000000000000000000000000000..fdbc015f498164c9d2c578cd84a73def568142a4 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/SkyStarLightEngine.java @@ -0,0 +1,711 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.starlight.blockstate.StarlightAbstractBlockState; +import ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk; +import it.unimi.dsi.fastutil.shorts.ShortCollection; +import it.unimi.dsi.fastutil.shorts.ShortIterator; +import net.minecraft.core.BlockPos; +import net.minecraft.world.level.BlockGetter; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.block.state.BlockState; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunkSection; +import net.minecraft.world.level.chunk.LightChunkGetter; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.phys.shapes.Shapes; +import net.minecraft.world.phys.shapes.VoxelShape; +import java.util.Arrays; +import java.util.Set; + +public final class SkyStarLightEngine extends StarLightEngine { + + /* + Specification for managing the initialisation and de-initialisation of skylight nibble arrays: + + Skylight nibble initialisation requires that non-empty chunk sections have 1 radius nibbles non-null. + + This presents some problems, as vanilla is only guaranteed to have 0 radius neighbours loaded when editing blocks. + However starlight fixes this so that it has 1 radius loaded. Still, we don't actually have guarantees + that we have the necessary chunks loaded to de-initialise neighbour sections (but we do have enough to de-initialise + our own) - we need a radius of 2 to de-initialise neighbour nibbles. + How do we solve this? + + Each chunk will store the last known "emptiness" of sections for each of their 1 radius neighbour chunk sections. + If the chunk does not have full data, then its nibbles are NOT de-initialised. This is because obviously the + chunk did not go through the light stage yet - or its neighbours are not lit. In either case, once the last + known "emptiness" of neighbouring sections is filled with data, the chunk will run a full check of the data + to see if any of its nibbles need to be de-initialised. + + The emptiness map allows us to de-initialise neighbour nibbles if the neighbour has it filled with data, + and if it doesn't have data then we know it will correctly de-initialise once it fills up. + + Unlike vanilla, we store whether nibbles are uninitialised on disk - so we don't need any dumb hacking + around those. + */ + + protected final int[] heightMapBlockChange = new int[16 * 16]; + { + Arrays.fill(this.heightMapBlockChange, Integer.MIN_VALUE); // clear heightmap + } + + protected final boolean[] nullPropagationCheckCache; + + public SkyStarLightEngine(final Level world) { + super(true, world); + this.nullPropagationCheckCache = new boolean[WorldUtil.getTotalLightSections(world)]; + } + + @Override + protected void initNibble(final int chunkX, final int chunkY, final int chunkZ, final boolean extrude, final boolean initRemovedNibbles) { + if (chunkY < this.minLightSection || chunkY > this.maxLightSection || this.getChunkInCache(chunkX, chunkZ) == null) { + return; + } + SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (nibble == null) { + if (!initRemovedNibbles) { + throw new IllegalStateException(); + } else { + this.setNibbleInCache(chunkX, chunkY, chunkZ, nibble = new SWMRNibbleArray(null, true)); + } + } + this.initNibble(nibble, chunkX, chunkY, chunkZ, extrude); + } + + @Override + protected void setNibbleNull(final int chunkX, final int chunkY, final int chunkZ) { + final SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (nibble != null) { + nibble.setNull(); + } + } + + protected final void initNibble(final SWMRNibbleArray currNibble, final int chunkX, final int chunkY, final int chunkZ, final boolean extrude) { + if (!currNibble.isNullNibbleUpdating()) { + // already initialised + return; + } + + final boolean[] emptinessMap = this.getEmptinessMap(chunkX, chunkZ); + + // are we above this chunk's lowest empty section? + int lowestY = this.minLightSection - 1; + for (int currY = this.maxSection; currY >= this.minSection; --currY) { + if (emptinessMap == null) { + // cannot delay nibble init for lit chunks, as we need to init to propagate into them. + final LevelChunkSection current = this.getChunkSection(chunkX, currY, chunkZ); + if (current == null || current.hasOnlyAir()) { + continue; + } + } else { + if (emptinessMap[currY - this.minSection]) { + continue; + } + } + + // should always be full lit here + lowestY = currY; + break; + } + + if (chunkY > lowestY) { + // we need to set this one to full + final SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + nibble.setNonNull(); + nibble.setFull(); + return; + } + + if (extrude) { + // this nibble is going to depend solely on the skylight data above it + // find first non-null data above (there does exist one, as we just found it above) + for (int currY = chunkY + 1; currY <= this.maxLightSection; ++currY) { + final SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, currY, chunkZ); + if (nibble != null && !nibble.isNullNibbleUpdating()) { + currNibble.setNonNull(); + currNibble.extrudeLower(nibble); + break; + } + } + } else { + currNibble.setNonNull(); + } + } + + protected final void rewriteNibbleCacheForSkylight(final ChunkAccess chunk) { + for (int index = 0, max = this.nibbleCache.length; index < max; ++index) { + final SWMRNibbleArray nibble = this.nibbleCache[index]; + if (nibble != null && nibble.isNullNibbleUpdating()) { + // stop propagation in these areas + this.nibbleCache[index] = null; + nibble.updateVisible(); + } + } + } + + // rets whether neighbours were init'd + + protected final boolean checkNullSection(final int chunkX, final int chunkY, final int chunkZ, + final boolean extrudeInitialised) { + // null chunk sections may have nibble neighbours in the horizontal 1 radius that are + // non-null. Propagation to these neighbours is necessary. + // What makes this easy is we know none of these neighbours are non-empty (otherwise + // this nibble would be initialised). So, we don't have to initialise + // the neighbours in the full 1 radius, because there's no worry that any "paths" + // to the neighbours on this horizontal plane are blocked. + if (chunkY < this.minLightSection || chunkY > this.maxLightSection || this.nullPropagationCheckCache[chunkY - this.minLightSection]) { + return false; + } + this.nullPropagationCheckCache[chunkY - this.minLightSection] = true; + + // check horizontal neighbours + boolean needInitNeighbours = false; + neighbour_search: + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + final SWMRNibbleArray nibble = this.getNibbleFromCache(dx + chunkX, chunkY, dz + chunkZ); + if (nibble != null && !nibble.isNullNibbleUpdating()) { + needInitNeighbours = true; + break neighbour_search; + } + } + } + + if (needInitNeighbours) { + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + this.initNibble(dx + chunkX, chunkY, dz + chunkZ, (dx | dz) == 0 ? extrudeInitialised : true, true); + } + } + } + + return needInitNeighbours; + } + + protected final int getLightLevelExtruded(final int worldX, final int worldY, final int worldZ) { + final int chunkX = worldX >> 4; + int chunkY = worldY >> 4; + final int chunkZ = worldZ >> 4; + + SWMRNibbleArray nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (nibble != null) { + return nibble.getUpdating(worldX, worldY, worldZ); + } + + for (;;) { + if (++chunkY > this.maxLightSection) { + return 15; + } + + nibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + + if (nibble != null) { + return nibble.getUpdating(worldX, 0, worldZ); + } + } + } + + @Override + protected boolean[] getEmptinessMap(final ChunkAccess chunk) { + return ((StarlightChunk)chunk).starlight$getSkyEmptinessMap(); + } + + @Override + protected void setEmptinessMap(final ChunkAccess chunk, final boolean[] to) { + ((StarlightChunk)chunk).starlight$setSkyEmptinessMap(to); + } + + @Override + protected SWMRNibbleArray[] getNibblesOnChunk(final ChunkAccess chunk) { + return ((StarlightChunk)chunk).starlight$getSkyNibbles(); + } + + @Override + protected void setNibbles(final ChunkAccess chunk, final SWMRNibbleArray[] to) { + ((StarlightChunk)chunk).starlight$setSkyNibbles(to); + } + + @Override + protected boolean canUseChunk(final ChunkAccess chunk) { + // can only use chunks for sky stuff if their sections have been init'd + return chunk.getPersistedStatus().isOrAfter(ChunkStatus.LIGHT) && (this.isClientSide || chunk.isLightCorrect()); + } + + @Override + protected void checkChunkEdges(final LightChunkGetter lightAccess, final ChunkAccess chunk, final int fromSection, + final int toSection) { + Arrays.fill(this.nullPropagationCheckCache, false); + this.rewriteNibbleCacheForSkylight(chunk); + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + for (int y = toSection; y >= fromSection; --y) { + this.checkNullSection(chunkX, y, chunkZ, true); + } + + super.checkChunkEdges(lightAccess, chunk, fromSection, toSection); + } + + @Override + protected void checkChunkEdges(final LightChunkGetter lightAccess, final ChunkAccess chunk, final ShortCollection sections) { + Arrays.fill(this.nullPropagationCheckCache, false); + this.rewriteNibbleCacheForSkylight(chunk); + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + for (final ShortIterator iterator = sections.iterator(); iterator.hasNext();) { + final int y = (int)iterator.nextShort(); + this.checkNullSection(chunkX, y, chunkZ, true); + } + + super.checkChunkEdges(lightAccess, chunk, sections); + } + + @Override + protected void checkBlock(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ) { + // blocks can change opacity + // blocks can change direction of propagation + + // same logic applies from BlockStarLightEngine#checkBlock + + final int encodeOffset = this.coordinateOffset; + + final int currentLevel = this.getLightLevel(worldX, worldY, worldZ); + + if (currentLevel == 15) { + // must re-propagate clobbered source + this.appendToIncreaseQueue( + ((worldX + (worldZ << 6) + (worldY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (currentLevel & 0xFL) << (6 + 6 + 16) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | FLAG_HAS_SIDED_TRANSPARENT_BLOCKS // don't know if the block is conditionally transparent + ); + } else { + this.setLightLevel(worldX, worldY, worldZ, 0); + } + + this.appendToDecreaseQueue( + ((worldX + (worldZ << 6) + (worldY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (currentLevel & 0xFL) << (6 + 6 + 16) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + ); + } + + protected final BlockPos.MutableBlockPos recalcCenterPos = new BlockPos.MutableBlockPos(); + protected final BlockPos.MutableBlockPos recalcNeighbourPos = new BlockPos.MutableBlockPos(); + + @Override + protected int calculateLightValue(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ, + final int expect) { + if (expect == 15) { + return expect; + } + + final int sectionOffset = this.chunkSectionIndexOffset; + final BlockState centerState = this.getBlockState(worldX, worldY, worldZ); + int opacity = ((StarlightAbstractBlockState)centerState).starlight$getOpacityIfCached(); + + final BlockState conditionallyOpaqueState; + if (opacity < 0) { + this.recalcCenterPos.set(worldX, worldY, worldZ); + opacity = Math.max(1, centerState.getLightBlock(lightAccess.getLevel(), this.recalcCenterPos)); + if (((StarlightAbstractBlockState)centerState).starlight$isConditionallyFullOpaque()) { + conditionallyOpaqueState = centerState; + } else { + conditionallyOpaqueState = null; + } + } else { + conditionallyOpaqueState = null; + opacity = Math.max(1, opacity); + } + + int level = 0; + + for (final AxisDirection direction : AXIS_DIRECTIONS) { + final int offX = worldX + direction.x; + final int offY = worldY + direction.y; + final int offZ = worldZ + direction.z; + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + + final int neighbourLevel = this.getLightLevel(sectionIndex, (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8)); + + if ((neighbourLevel - 1) <= level) { + // don't need to test transparency, we know it wont affect the result. + continue; + } + + final BlockState neighbourState = this.getBlockState(offX, offY, offZ); + + if (((StarlightAbstractBlockState)neighbourState).starlight$isConditionallyFullOpaque()) { + // here the block can be conditionally opaque (i.e light cannot propagate from it), so we need to test that + // we don't read the blockstate because most of the time this is false, so using the faster + // known transparency lookup results in a net win + this.recalcNeighbourPos.set(offX, offY, offZ); + final VoxelShape neighbourFace = neighbourState.getFaceOcclusionShape(lightAccess.getLevel(), this.recalcNeighbourPos, direction.opposite.nms); + final VoxelShape thisFace = conditionallyOpaqueState == null ? Shapes.empty() : conditionallyOpaqueState.getFaceOcclusionShape(lightAccess.getLevel(), this.recalcCenterPos, direction.nms); + if (Shapes.faceShapeOccludes(thisFace, neighbourFace)) { + // not allowed to propagate + continue; + } + } + + final int calculated = neighbourLevel - opacity; + level = Math.max(calculated, level); + if (level > expect) { + return level; + } + } + + return level; + } + + @Override + protected void propagateBlockChanges(final LightChunkGetter lightAccess, final ChunkAccess atChunk, final Set positions) { + this.rewriteNibbleCacheForSkylight(atChunk); + Arrays.fill(this.nullPropagationCheckCache, false); + + final BlockGetter world = lightAccess.getLevel(); + final int chunkX = atChunk.getPos().x; + final int chunkZ = atChunk.getPos().z; + final int heightMapOffset = chunkX * -16 + (chunkZ * (-16 * 16)); + + // setup heightmap for changes + for (final BlockPos pos : positions) { + final int index = pos.getX() + (pos.getZ() << 4) + heightMapOffset; + final int curr = this.heightMapBlockChange[index]; + if (pos.getY() > curr) { + this.heightMapBlockChange[index] = pos.getY(); + } + } + + // note: light sets are delayed while processing skylight source changes due to how + // nibbles are initialised, as we want to avoid clobbering nibble values so what when + // below nibbles are initialised they aren't reading from partially modified nibbles + + // now we can recalculate the sources for the changed columns + for (int index = 0; index < (16 * 16); ++index) { + final int maxY = this.heightMapBlockChange[index]; + if (maxY == Integer.MIN_VALUE) { + // not changed + continue; + } + this.heightMapBlockChange[index] = Integer.MIN_VALUE; // restore default for next caller + + final int columnX = (index & 15) | (chunkX << 4); + final int columnZ = (index >>> 4) | (chunkZ << 4); + + // try and propagate from the above y + // delay light set until after processing all sources to setup + final int maxPropagationY = this.tryPropagateSkylight(world, columnX, maxY, columnZ, true, true); + + // maxPropagationY is now the highest block that could not be propagated to + + // remove all sources below that are 15 + final long propagateDirection = AxisDirection.POSITIVE_Y.everythingButThisDirection; + final int encodeOffset = this.coordinateOffset; + + if (this.getLightLevelExtruded(columnX, maxPropagationY, columnZ) == 15) { + // ensure section is checked + this.checkNullSection(columnX >> 4, maxPropagationY >> 4, columnZ >> 4, true); + + for (int currY = maxPropagationY; currY >= (this.minLightSection << 4); --currY) { + if ((currY & 15) == 15) { + // ensure section is checked + this.checkNullSection(columnX >> 4, (currY >> 4), columnZ >> 4, true); + } + + // ensure section below is always checked + final SWMRNibbleArray nibble = this.getNibbleFromCache(columnX >> 4, currY >> 4, columnZ >> 4); + if (nibble == null) { + // advance currY to the the top of the section below + currY = (currY) & (~15); + // note: this value ^ is actually 1 above the top, but the loop decrements by 1 so we actually + // end up there + continue; + } + + if (nibble.getUpdating(columnX, currY, columnZ) != 15) { + break; + } + + // delay light set until after processing all sources to setup + this.appendToDecreaseQueue( + ((columnX + (columnZ << 6) + (currY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (15L << (6 + 6 + 16)) + | (propagateDirection << (6 + 6 + 16 + 4)) + // do not set transparent blocks for the same reason we don't in the checkBlock method + ); + } + } + } + + // delayed light sets are processed here, and must be processed before checkBlock as checkBlock reads + // immediate light value + this.processDelayedIncreases(); + this.processDelayedDecreases(); + + for (final BlockPos pos : positions) { + this.checkBlock(lightAccess, pos.getX(), pos.getY(), pos.getZ()); + } + + this.performLightDecrease(lightAccess); + } + + protected final int[] heightMapGen = new int[32 * 32]; + + @Override + protected void lightChunk(final LightChunkGetter lightAccess, final ChunkAccess chunk, final boolean needsEdgeChecks) { + this.rewriteNibbleCacheForSkylight(chunk); + Arrays.fill(this.nullPropagationCheckCache, false); + + final BlockGetter world = lightAccess.getLevel(); + final ChunkPos chunkPos = chunk.getPos(); + final int chunkX = chunkPos.x; + final int chunkZ = chunkPos.z; + + final LevelChunkSection[] sections = chunk.getSections(); + + int highestNonEmptySection = this.maxSection; + while (highestNonEmptySection == (this.minSection - 1) || + sections[highestNonEmptySection - this.minSection] == null || sections[highestNonEmptySection - this.minSection].hasOnlyAir()) { + this.checkNullSection(chunkX, highestNonEmptySection, chunkZ, false); + // try propagate FULL to neighbours + + // check neighbours to see if we need to propagate into them + for (final AxisDirection direction : ONLY_HORIZONTAL_DIRECTIONS) { + final int neighbourX = chunkX + direction.x; + final int neighbourZ = chunkZ + direction.z; + final SWMRNibbleArray neighbourNibble = this.getNibbleFromCache(neighbourX, highestNonEmptySection, neighbourZ); + if (neighbourNibble == null) { + // unloaded neighbour + // most of the time we fall here + continue; + } + + // it looks like we need to propagate into the neighbour + + final int incX; + final int incZ; + final int startX; + final int startZ; + + if (direction.x != 0) { + // x direction + incX = 0; + incZ = 1; + + if (direction.x < 0) { + // negative + startX = chunkX << 4; + } else { + startX = chunkX << 4 | 15; + } + startZ = chunkZ << 4; + } else { + // z direction + incX = 1; + incZ = 0; + + if (direction.z < 0) { + // negative + startZ = chunkZ << 4; + } else { + startZ = chunkZ << 4 | 15; + } + startX = chunkX << 4; + } + + final int encodeOffset = this.coordinateOffset; + final long propagateDirection = 1L << direction.ordinal(); // we only want to check in this direction + + for (int currY = highestNonEmptySection << 4, maxY = currY | 15; currY <= maxY; ++currY) { + for (int i = 0, currX = startX, currZ = startZ; i < 16; ++i, currX += incX, currZ += incZ) { + this.appendToIncreaseQueue( + ((currX + (currZ << 6) + (currY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (15L << (6 + 6 + 16)) // we know we're at full lit here + | (propagateDirection << (6 + 6 + 16 + 4)) + // no transparent flag, we know for a fact there are no blocks here that could be directionally transparent (as the section is EMPTY) + ); + } + } + } + + if (highestNonEmptySection-- == (this.minSection - 1)) { + break; + } + } + + if (highestNonEmptySection >= this.minSection) { + // fill out our other sources + final int minX = chunkPos.x << 4; + final int maxX = chunkPos.x << 4 | 15; + final int minZ = chunkPos.z << 4; + final int maxZ = chunkPos.z << 4 | 15; + final int startY = highestNonEmptySection << 4 | 15; + for (int currZ = minZ; currZ <= maxZ; ++currZ) { + for (int currX = minX; currX <= maxX; ++currX) { + this.tryPropagateSkylight(world, currX, startY + 1, currZ, false, false); + } + } + } // else: apparently the chunk is empty + + if (needsEdgeChecks) { + // not required to propagate here, but this will reduce the hit of the edge checks + this.performLightIncrease(lightAccess); + + for (int y = highestNonEmptySection; y >= this.minLightSection; --y) { + this.checkNullSection(chunkX, y, chunkZ, false); + } + // no need to rewrite the nibble cache again + super.checkChunkEdges(lightAccess, chunk, this.minLightSection, highestNonEmptySection); + } else { + for (int y = highestNonEmptySection; y >= this.minLightSection; --y) { + this.checkNullSection(chunkX, y, chunkZ, false); + } + this.propagateNeighbourLevels(lightAccess, chunk, this.minLightSection, highestNonEmptySection); + + this.performLightIncrease(lightAccess); + } + } + + protected final void processDelayedIncreases() { + // copied from performLightIncrease + final long[] queue = this.increaseQueue; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetY = -this.encodeOffsetY; + final int decodeOffsetZ = -this.encodeOffsetZ; + + for (int i = 0, len = this.increaseQueueInitialLength; i < len; ++i) { + final long queueValue = queue[i]; + + final int posX = ((int)queueValue & 63) + decodeOffsetX; + final int posZ = (((int)queueValue >>> 6) & 63) + decodeOffsetZ; + final int posY = (((int)queueValue >>> 12) & ((1 << 16) - 1)) + decodeOffsetY; + final int propagatedLightLevel = (int)((queueValue >>> (6 + 6 + 16)) & 0xF); + + this.setLightLevel(posX, posY, posZ, propagatedLightLevel); + } + } + + protected final void processDelayedDecreases() { + // copied from performLightDecrease + final long[] queue = this.decreaseQueue; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetY = -this.encodeOffsetY; + final int decodeOffsetZ = -this.encodeOffsetZ; + + for (int i = 0, len = this.decreaseQueueInitialLength; i < len; ++i) { + final long queueValue = queue[i]; + + final int posX = ((int)queueValue & 63) + decodeOffsetX; + final int posZ = (((int)queueValue >>> 6) & 63) + decodeOffsetZ; + final int posY = (((int)queueValue >>> 12) & ((1 << 16) - 1)) + decodeOffsetY; + + this.setLightLevel(posX, posY, posZ, 0); + } + } + + // delaying the light set is useful for block changes since they need to worry about initialising nibblearrays + // while also queueing light at the same time (initialising nibblearrays might depend on nibbles above, so + // clobbering the light values will result in broken propagation) + protected final int tryPropagateSkylight(final BlockGetter world, final int worldX, int startY, final int worldZ, + final boolean extrudeInitialised, final boolean delayLightSet) { + final BlockPos.MutableBlockPos mutablePos = this.mutablePos3; + final int encodeOffset = this.coordinateOffset; + final long propagateDirection = AxisDirection.POSITIVE_Y.everythingButThisDirection; // just don't check upwards. + + if (this.getLightLevelExtruded(worldX, startY + 1, worldZ) != 15) { + return startY; + } + + // ensure this section is always checked + this.checkNullSection(worldX >> 4, startY >> 4, worldZ >> 4, extrudeInitialised); + + BlockState above = this.getBlockState(worldX, startY + 1, worldZ); + + for (;startY >= (this.minLightSection << 4); --startY) { + if ((startY & 15) == 15) { + // ensure this section is always checked + this.checkNullSection(worldX >> 4, startY >> 4, worldZ >> 4, extrudeInitialised); + } + final BlockState current = this.getBlockState(worldX, startY, worldZ); + + final VoxelShape fromShape; + if (((StarlightAbstractBlockState)above).starlight$isConditionallyFullOpaque()) { + this.mutablePos2.set(worldX, startY + 1, worldZ); + fromShape = above.getFaceOcclusionShape(world, this.mutablePos2, AxisDirection.NEGATIVE_Y.nms); + if (Shapes.faceShapeOccludes(Shapes.empty(), fromShape)) { + // above wont let us propagate + break; + } + } else { + fromShape = Shapes.empty(); + } + + final int opacityIfCached = ((StarlightAbstractBlockState)current).starlight$getOpacityIfCached(); + // does light propagate from the top down? + if (opacityIfCached != -1) { + if (opacityIfCached != 0) { + // we cannot propagate 15 through this + break; + } + // most of the time it falls here. + // add to propagate + // light set delayed until we determine if this nibble section is null + this.appendToIncreaseQueue( + ((worldX + (worldZ << 6) + (startY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (15L << (6 + 6 + 16)) // we know we're at full lit here + | (propagateDirection << (6 + 6 + 16 + 4)) + ); + } else { + mutablePos.set(worldX, startY, worldZ); + long flags = 0L; + if (((StarlightAbstractBlockState)current).starlight$isConditionallyFullOpaque()) { + final VoxelShape cullingFace = current.getFaceOcclusionShape(world, mutablePos, AxisDirection.POSITIVE_Y.nms); + + if (Shapes.faceShapeOccludes(fromShape, cullingFace)) { + // can't propagate here, we're done on this column. + break; + } + flags |= FLAG_HAS_SIDED_TRANSPARENT_BLOCKS; + } + + final int opacity = current.getLightBlock(world, mutablePos); + if (opacity > 0) { + // let the queued value (if any) handle it from here. + break; + } + + // light set delayed until we determine if this nibble section is null + this.appendToIncreaseQueue( + ((worldX + (worldZ << 6) + (startY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | (15L << (6 + 6 + 16)) // we know we're at full lit here + | (propagateDirection << (6 + 6 + 16 + 4)) + | flags + ); + } + + above = current; + + if (this.getNibbleFromCache(worldX >> 4, startY >> 4, worldZ >> 4) == null) { + // we skip empty sections here, as this is just an easy way of making sure the above block + // can propagate through air. + + // nothing can propagate in null sections, remove the queue entry for it + --this.increaseQueueInitialLength; + + // advance currY to the the top of the section below + startY = (startY) & (~15); + // note: this value ^ is actually 1 above the top, but the loop decrements by 1 so we actually + // end up there + + // make sure this is marked as AIR + above = AIR_BLOCK_STATE; + } else if (!delayLightSet) { + this.setLightLevel(worldX, startY, worldZ, 15); + } + } + + return startY; + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightEngine.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightEngine.java new file mode 100644 index 0000000000000000000000000000000000000000..382c9e445af0d6ad2428fc22d0f63017c58191e2 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightEngine.java @@ -0,0 +1,1573 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import ca.spottedleaf.concurrentutil.util.IntegerUtil; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.starlight.blockstate.StarlightAbstractBlockState; +import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap; +import it.unimi.dsi.fastutil.shorts.ShortCollection; +import it.unimi.dsi.fastutil.shorts.ShortIterator; +import net.minecraft.core.BlockPos; +import net.minecraft.core.Direction; +import net.minecraft.core.SectionPos; +import net.minecraft.world.level.BlockGetter; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.LevelHeightAccessor; +import net.minecraft.world.level.LightLayer; +import net.minecraft.world.level.block.Blocks; +import net.minecraft.world.level.block.state.BlockState; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.LevelChunkSection; +import net.minecraft.world.level.chunk.LightChunkGetter; +import net.minecraft.world.phys.shapes.Shapes; +import net.minecraft.world.phys.shapes.VoxelShape; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Set; +import java.util.function.Consumer; +import java.util.function.IntConsumer; + +public abstract class StarLightEngine { + + protected static final BlockState AIR_BLOCK_STATE = Blocks.AIR.defaultBlockState(); + + protected static final AxisDirection[] DIRECTIONS = AxisDirection.values(); + protected static final AxisDirection[] AXIS_DIRECTIONS = DIRECTIONS; + protected static final AxisDirection[] ONLY_HORIZONTAL_DIRECTIONS = new AxisDirection[] { + AxisDirection.POSITIVE_X, AxisDirection.NEGATIVE_X, + AxisDirection.POSITIVE_Z, AxisDirection.NEGATIVE_Z + }; + + protected static enum AxisDirection { + + // Declaration order is important and relied upon. Do not change without modifying propagation code. + POSITIVE_X(1, 0, 0), NEGATIVE_X(-1, 0, 0), + POSITIVE_Z(0, 0, 1), NEGATIVE_Z(0, 0, -1), + POSITIVE_Y(0, 1, 0), NEGATIVE_Y(0, -1, 0); + + static { + POSITIVE_X.opposite = NEGATIVE_X; NEGATIVE_X.opposite = POSITIVE_X; + POSITIVE_Z.opposite = NEGATIVE_Z; NEGATIVE_Z.opposite = POSITIVE_Z; + POSITIVE_Y.opposite = NEGATIVE_Y; NEGATIVE_Y.opposite = POSITIVE_Y; + } + + protected AxisDirection opposite; + + public final int x; + public final int y; + public final int z; + public final Direction nms; + public final long everythingButThisDirection; + public final long everythingButTheOppositeDirection; + + AxisDirection(final int x, final int y, final int z) { + this.x = x; + this.y = y; + this.z = z; + this.nms = Direction.fromDelta(x, y, z); + this.everythingButThisDirection = (long)(ALL_DIRECTIONS_BITSET ^ (1 << this.ordinal())); + // positive is always even, negative is always odd. Flip the 1 bit to get the negative direction. + this.everythingButTheOppositeDirection = (long)(ALL_DIRECTIONS_BITSET ^ (1 << (this.ordinal() ^ 1))); + } + + public AxisDirection getOpposite() { + return this.opposite; + } + } + + // I'd like to thank https://www.seedofandromeda.com/blogs/29-fast-flood-fill-lighting-in-a-blocky-voxel-game-pt-1 + // for explaining how light propagates via breadth-first search + + // While the above is a good start to understanding the general idea of what the general principles are, it's not + // exactly how the vanilla light engine should behave for minecraft. + + // similar to the above, except the chunk section indices vary from [-1, 1], or [0, 2] + // for the y chunk section it's from [minLightSection, maxLightSection] or [0, maxLightSection - minLightSection] + // index = x + (z * 5) + (y * 25) + // null index indicates the chunk section doesn't exist (empty or out of bounds) + protected final LevelChunkSection[] sectionCache; + + // the exact same as above, except for storing fast access to SWMRNibbleArray + // for the y chunk section it's from [minLightSection, maxLightSection] or [0, maxLightSection - minLightSection] + // index = x + (z * 5) + (y * 25) + protected final SWMRNibbleArray[] nibbleCache; + + // the exact same as above, except for storing fast access to nibbles to call change callbacks for + // for the y chunk section it's from [minLightSection, maxLightSection] or [0, maxLightSection - minLightSection] + // index = x + (z * 5) + (y * 25) + protected final boolean[] notifyUpdateCache; + + // always initialsed during start of lighting. + // index = x + (z * 5) + protected final ChunkAccess[] chunkCache = new ChunkAccess[5 * 5]; + + // index = x + (z * 5) + protected final boolean[][] emptinessMapCache = new boolean[5 * 5][]; + + protected final BlockPos.MutableBlockPos mutablePos1 = new BlockPos.MutableBlockPos(); + protected final BlockPos.MutableBlockPos mutablePos2 = new BlockPos.MutableBlockPos(); + protected final BlockPos.MutableBlockPos mutablePos3 = new BlockPos.MutableBlockPos(); + + protected int encodeOffsetX; + protected int encodeOffsetY; + protected int encodeOffsetZ; + + protected int coordinateOffset; + + protected int chunkOffsetX; + protected int chunkOffsetY; + protected int chunkOffsetZ; + + protected int chunkIndexOffset; + protected int chunkSectionIndexOffset; + + protected final boolean skylightPropagator; + protected final int emittedLightMask; + protected final boolean isClientSide; + + protected final Level world; + protected final int minLightSection; + protected final int maxLightSection; + protected final int minSection; + protected final int maxSection; + + protected StarLightEngine(final boolean skylightPropagator, final Level world) { + this.skylightPropagator = skylightPropagator; + this.emittedLightMask = skylightPropagator ? 0 : 0xF; + this.isClientSide = world.isClientSide; + this.world = world; + this.minLightSection = WorldUtil.getMinLightSection(world); + this.maxLightSection = WorldUtil.getMaxLightSection(world); + this.minSection = WorldUtil.getMinSection(world); + this.maxSection = WorldUtil.getMaxSection(world); + + this.sectionCache = new LevelChunkSection[5 * 5 * ((this.maxLightSection - this.minLightSection + 1) + 2)]; // add two extra sections for buffer + this.nibbleCache = new SWMRNibbleArray[5 * 5 * ((this.maxLightSection - this.minLightSection + 1) + 2)]; // add two extra sections for buffer + this.notifyUpdateCache = new boolean[5 * 5 * ((this.maxLightSection - this.minLightSection + 1) + 2)]; // add two extra sections for buffer + } + + protected final void setupEncodeOffset(final int centerX, final int centerY, final int centerZ) { + // 31 = center + encodeOffset + this.encodeOffsetX = 31 - centerX; + this.encodeOffsetY = (-(this.minLightSection - 1) << 4); // we want 0 to be the smallest encoded value + this.encodeOffsetZ = 31 - centerZ; + + // coordinateIndex = x | (z << 6) | (y << 12) + this.coordinateOffset = this.encodeOffsetX + (this.encodeOffsetZ << 6) + (this.encodeOffsetY << 12); + + // 2 = (centerX >> 4) + chunkOffset + this.chunkOffsetX = 2 - (centerX >> 4); + this.chunkOffsetY = -(this.minLightSection - 1); // lowest should be 0 + this.chunkOffsetZ = 2 - (centerZ >> 4); + + // chunk index = x + (5 * z) + this.chunkIndexOffset = this.chunkOffsetX + (5 * this.chunkOffsetZ); + + // chunk section index = x + (5 * z) + ((5*5) * y) + this.chunkSectionIndexOffset = this.chunkIndexOffset + ((5 * 5) * this.chunkOffsetY); + } + + protected final void setupCaches(final LightChunkGetter chunkProvider, final int centerX, final int centerY, final int centerZ, + final boolean relaxed, final boolean tryToLoadChunksFor2Radius) { + final int centerChunkX = centerX >> 4; + final int centerChunkY = centerY >> 4; + final int centerChunkZ = centerZ >> 4; + + this.setupEncodeOffset(centerChunkX * 16 + 7, centerChunkY * 16 + 7, centerChunkZ * 16 + 7); + + final int radius = tryToLoadChunksFor2Radius ? 2 : 1; + + for (int dz = -radius; dz <= radius; ++dz) { + for (int dx = -radius; dx <= radius; ++dx) { + final int cx = centerChunkX + dx; + final int cz = centerChunkZ + dz; + final boolean isTwoRadius = Math.max(IntegerUtil.branchlessAbs(dx), IntegerUtil.branchlessAbs(dz)) == 2; + final ChunkAccess chunk = (ChunkAccess)chunkProvider.getChunkForLighting(cx, cz); + + if (chunk == null) { + if (relaxed | isTwoRadius) { + continue; + } + throw new IllegalArgumentException("Trying to propagate light update before 1 radius neighbours ready"); + } + + if (!this.canUseChunk(chunk)) { + continue; + } + + this.setChunkInCache(cx, cz, chunk); + this.setEmptinessMapCache(cx, cz, this.getEmptinessMap(chunk)); + if (!isTwoRadius) { + this.setBlocksForChunkInCache(cx, cz, chunk.getSections()); + this.setNibblesForChunkInCache(cx, cz, this.getNibblesOnChunk(chunk)); + } + } + } + } + + protected final ChunkAccess getChunkInCache(final int chunkX, final int chunkZ) { + return this.chunkCache[chunkX + 5*chunkZ + this.chunkIndexOffset]; + } + + protected final void setChunkInCache(final int chunkX, final int chunkZ, final ChunkAccess chunk) { + this.chunkCache[chunkX + 5*chunkZ + this.chunkIndexOffset] = chunk; + } + + protected final LevelChunkSection getChunkSection(final int chunkX, final int chunkY, final int chunkZ) { + return this.sectionCache[chunkX + 5*chunkZ + (5 * 5) * chunkY + this.chunkSectionIndexOffset]; + } + + protected final void setChunkSectionInCache(final int chunkX, final int chunkY, final int chunkZ, final LevelChunkSection section) { + this.sectionCache[chunkX + 5*chunkZ + 5*5*chunkY + this.chunkSectionIndexOffset] = section; + } + + protected final void setBlocksForChunkInCache(final int chunkX, final int chunkZ, final LevelChunkSection[] sections) { + for (int cy = this.minLightSection; cy <= this.maxLightSection; ++cy) { + this.setChunkSectionInCache(chunkX, cy, chunkZ, + sections == null ? null : (cy >= this.minSection && cy <= this.maxSection ? sections[cy - this.minSection] : null)); + } + } + + protected final SWMRNibbleArray getNibbleFromCache(final int chunkX, final int chunkY, final int chunkZ) { + return this.nibbleCache[chunkX + 5*chunkZ + (5 * 5) * chunkY + this.chunkSectionIndexOffset]; + } + + protected final SWMRNibbleArray[] getNibblesForChunkFromCache(final int chunkX, final int chunkZ) { + final SWMRNibbleArray[] ret = new SWMRNibbleArray[this.maxLightSection - this.minLightSection + 1]; + + for (int cy = this.minLightSection; cy <= this.maxLightSection; ++cy) { + ret[cy - this.minLightSection] = this.nibbleCache[chunkX + 5*chunkZ + (cy * (5 * 5)) + this.chunkSectionIndexOffset]; + } + + return ret; + } + + protected final void setNibbleInCache(final int chunkX, final int chunkY, final int chunkZ, final SWMRNibbleArray nibble) { + this.nibbleCache[chunkX + 5*chunkZ + (5 * 5) * chunkY + this.chunkSectionIndexOffset] = nibble; + } + + protected final void setNibblesForChunkInCache(final int chunkX, final int chunkZ, final SWMRNibbleArray[] nibbles) { + for (int cy = this.minLightSection; cy <= this.maxLightSection; ++cy) { + this.setNibbleInCache(chunkX, cy, chunkZ, nibbles == null ? null : nibbles[cy - this.minLightSection]); + } + } + + protected final void updateVisible(final LightChunkGetter lightAccess) { + for (int index = 0, max = this.nibbleCache.length; index < max; ++index) { + final SWMRNibbleArray nibble = this.nibbleCache[index]; + if (!this.notifyUpdateCache[index] && (nibble == null || !nibble.isDirty())) { + continue; + } + + final int chunkX = (index % 5) - this.chunkOffsetX; + final int chunkZ = ((index / 5) % 5) - this.chunkOffsetZ; + final int ySections = this.maxSection - this.minSection + 1; + final int chunkY = ((index / (5*5)) % (ySections + 2 + 2)) - this.chunkOffsetY; + if ((nibble != null && nibble.updateVisible()) || this.notifyUpdateCache[index]) { + lightAccess.onLightUpdate(this.skylightPropagator ? LightLayer.SKY : LightLayer.BLOCK, SectionPos.of(chunkX, chunkY, chunkZ)); + } + } + } + + protected final void destroyCaches() { + Arrays.fill(this.sectionCache, null); + Arrays.fill(this.nibbleCache, null); + Arrays.fill(this.chunkCache, null); + Arrays.fill(this.emptinessMapCache, null); + if (this.isClientSide) { + Arrays.fill(this.notifyUpdateCache, false); + } + } + + protected final BlockState getBlockState(final int worldX, final int worldY, final int worldZ) { + final LevelChunkSection section = this.sectionCache[(worldX >> 4) + 5 * (worldZ >> 4) + (5 * 5) * (worldY >> 4) + this.chunkSectionIndexOffset]; + + if (section != null) { + return section.hasOnlyAir() ? AIR_BLOCK_STATE : section.getBlockState(worldX & 15, worldY & 15, worldZ & 15); + } + + return AIR_BLOCK_STATE; + } + + protected final BlockState getBlockState(final int sectionIndex, final int localIndex) { + final LevelChunkSection section = this.sectionCache[sectionIndex]; + + if (section != null) { + return section.hasOnlyAir() ? AIR_BLOCK_STATE : section.states.get(localIndex); + } + + return AIR_BLOCK_STATE; + } + + protected final int getLightLevel(final int worldX, final int worldY, final int worldZ) { + final SWMRNibbleArray nibble = this.nibbleCache[(worldX >> 4) + 5 * (worldZ >> 4) + (5 * 5) * (worldY >> 4) + this.chunkSectionIndexOffset]; + + return nibble == null ? 0 : nibble.getUpdating((worldX & 15) | ((worldZ & 15) << 4) | ((worldY & 15) << 8)); + } + + protected final int getLightLevel(final int sectionIndex, final int localIndex) { + final SWMRNibbleArray nibble = this.nibbleCache[sectionIndex]; + + return nibble == null ? 0 : nibble.getUpdating(localIndex); + } + + protected final void setLightLevel(final int worldX, final int worldY, final int worldZ, final int level) { + final int sectionIndex = (worldX >> 4) + 5 * (worldZ >> 4) + (5 * 5) * (worldY >> 4) + this.chunkSectionIndexOffset; + final SWMRNibbleArray nibble = this.nibbleCache[sectionIndex]; + + if (nibble != null) { + nibble.set((worldX & 15) | ((worldZ & 15) << 4) | ((worldY & 15) << 8), level); + if (this.isClientSide) { + int cx1 = (worldX - 1) >> 4; + int cx2 = (worldX + 1) >> 4; + int cy1 = (worldY - 1) >> 4; + int cy2 = (worldY + 1) >> 4; + int cz1 = (worldZ - 1) >> 4; + int cz2 = (worldZ + 1) >> 4; + for (int x = cx1; x <= cx2; ++x) { + for (int y = cy1; y <= cy2; ++y) { + for (int z = cz1; z <= cz2; ++z) { + this.notifyUpdateCache[x + 5 * z + (5 * 5) * y + this.chunkSectionIndexOffset] = true; + } + } + } + } + } + } + + protected final void postLightUpdate(final int worldX, final int worldY, final int worldZ) { + if (this.isClientSide) { + int cx1 = (worldX - 1) >> 4; + int cx2 = (worldX + 1) >> 4; + int cy1 = (worldY - 1) >> 4; + int cy2 = (worldY + 1) >> 4; + int cz1 = (worldZ - 1) >> 4; + int cz2 = (worldZ + 1) >> 4; + for (int x = cx1; x <= cx2; ++x) { + for (int y = cy1; y <= cy2; ++y) { + for (int z = cz1; z <= cz2; ++z) { + this.notifyUpdateCache[x + (5 * z) + (5 * 5 * y) + this.chunkSectionIndexOffset] = true; + } + } + } + } + } + + protected final void setLightLevel(final int sectionIndex, final int localIndex, final int worldX, final int worldY, final int worldZ, final int level) { + final SWMRNibbleArray nibble = this.nibbleCache[sectionIndex]; + + if (nibble != null) { + nibble.set(localIndex, level); + if (this.isClientSide) { + int cx1 = (worldX - 1) >> 4; + int cx2 = (worldX + 1) >> 4; + int cy1 = (worldY - 1) >> 4; + int cy2 = (worldY + 1) >> 4; + int cz1 = (worldZ - 1) >> 4; + int cz2 = (worldZ + 1) >> 4; + for (int x = cx1; x <= cx2; ++x) { + for (int y = cy1; y <= cy2; ++y) { + for (int z = cz1; z <= cz2; ++z) { + this.notifyUpdateCache[x + (5 * z) + (5 * 5 * y) + this.chunkSectionIndexOffset] = true; + } + } + } + } + } + } + + protected final boolean[] getEmptinessMap(final int chunkX, final int chunkZ) { + return this.emptinessMapCache[chunkX + 5*chunkZ + this.chunkIndexOffset]; + } + + protected final void setEmptinessMapCache(final int chunkX, final int chunkZ, final boolean[] emptinessMap) { + this.emptinessMapCache[chunkX + 5*chunkZ + this.chunkIndexOffset] = emptinessMap; + } + + public static SWMRNibbleArray[] getFilledEmptyLight(final LevelHeightAccessor world) { + return getFilledEmptyLight(WorldUtil.getTotalLightSections(world)); + } + + private static SWMRNibbleArray[] getFilledEmptyLight(final int totalLightSections) { + final SWMRNibbleArray[] ret = new SWMRNibbleArray[totalLightSections]; + + for (int i = 0, len = ret.length; i < len; ++i) { + ret[i] = new SWMRNibbleArray(null, true); + } + + return ret; + } + + protected abstract boolean[] getEmptinessMap(final ChunkAccess chunk); + + protected abstract void setEmptinessMap(final ChunkAccess chunk, final boolean[] to); + + protected abstract SWMRNibbleArray[] getNibblesOnChunk(final ChunkAccess chunk); + + protected abstract void setNibbles(final ChunkAccess chunk, final SWMRNibbleArray[] to); + + protected abstract boolean canUseChunk(final ChunkAccess chunk); + + public final void blocksChangedInChunk(final LightChunkGetter lightAccess, final int chunkX, final int chunkZ, + final Set positions, final Boolean[] changedSections) { + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, true); + try { + final ChunkAccess chunk = this.getChunkInCache(chunkX, chunkZ); + if (chunk == null) { + return; + } + if (changedSections != null) { + final boolean[] ret = this.handleEmptySectionChanges(lightAccess, chunk, changedSections, false); + if (ret != null) { + this.setEmptinessMap(chunk, ret); + } + } + if (!positions.isEmpty()) { + this.propagateBlockChanges(lightAccess, chunk, positions); + } + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + // subclasses should not initialise caches, as this will always be done by the super call + // subclasses should not invoke updateVisible, as this will always be done by the super call + protected abstract void propagateBlockChanges(final LightChunkGetter lightAccess, final ChunkAccess atChunk, final Set positions); + + protected abstract void checkBlock(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ); + + // if ret > expect, then the real value is at least ret (early returns if ret > expect, rather than calculating actual) + // if ret == expect, then expect is the correct light value for pos + // if ret < expect, then ret is the real light value + protected abstract int calculateLightValue(final LightChunkGetter lightAccess, final int worldX, final int worldY, final int worldZ, + final int expect); + + protected final int[] chunkCheckDelayedUpdatesCenter = new int[16 * 16]; + protected final int[] chunkCheckDelayedUpdatesNeighbour = new int[16 * 16]; + + protected void checkChunkEdge(final LightChunkGetter lightAccess, final ChunkAccess chunk, + final int chunkX, final int chunkY, final int chunkZ) { + final SWMRNibbleArray currNibble = this.getNibbleFromCache(chunkX, chunkY, chunkZ); + if (currNibble == null) { + return; + } + + for (final AxisDirection direction : ONLY_HORIZONTAL_DIRECTIONS) { + final int neighbourOffX = direction.x; + final int neighbourOffZ = direction.z; + + final SWMRNibbleArray neighbourNibble = this.getNibbleFromCache(chunkX + neighbourOffX, + chunkY, chunkZ + neighbourOffZ); + + if (neighbourNibble == null) { + continue; + } + + if (!currNibble.isInitialisedUpdating() && !neighbourNibble.isInitialisedUpdating()) { + // both are zero, nothing to check. + continue; + } + + // this chunk + final int incX; + final int incZ; + final int startX; + final int startZ; + + if (neighbourOffX != 0) { + // x direction + incX = 0; + incZ = 1; + + if (direction.x < 0) { + // negative + startX = chunkX << 4; + } else { + startX = chunkX << 4 | 15; + } + startZ = chunkZ << 4; + } else { + // z direction + incX = 1; + incZ = 0; + + if (neighbourOffZ < 0) { + // negative + startZ = chunkZ << 4; + } else { + startZ = chunkZ << 4 | 15; + } + startX = chunkX << 4; + } + + int centerDelayedChecks = 0; + int neighbourDelayedChecks = 0; + for (int currY = chunkY << 4, maxY = currY | 15; currY <= maxY; ++currY) { + for (int i = 0, currX = startX, currZ = startZ; i < 16; ++i, currX += incX, currZ += incZ) { + final int neighbourX = currX + neighbourOffX; + final int neighbourZ = currZ + neighbourOffZ; + + final int currentIndex = (currX & 15) | + ((currZ & 15)) << 4 | + ((currY & 15) << 8); + final int currentLevel = currNibble.getUpdating(currentIndex); + + final int neighbourIndex = + (neighbourX & 15) | + ((neighbourZ & 15)) << 4 | + ((currY & 15) << 8); + final int neighbourLevel = neighbourNibble.getUpdating(neighbourIndex); + + // the checks are delayed because the checkBlock method clobbers light values - which then + // affect later calculate light value operations. While they don't affect it in a behaviourly significant + // way, they do have a negative performance impact due to simply queueing more values + + if (this.calculateLightValue(lightAccess, currX, currY, currZ, currentLevel) != currentLevel) { + this.chunkCheckDelayedUpdatesCenter[centerDelayedChecks++] = currentIndex; + } + + if (this.calculateLightValue(lightAccess, neighbourX, currY, neighbourZ, neighbourLevel) != neighbourLevel) { + this.chunkCheckDelayedUpdatesNeighbour[neighbourDelayedChecks++] = neighbourIndex; + } + } + } + + final int currentChunkOffX = chunkX << 4; + final int currentChunkOffZ = chunkZ << 4; + final int neighbourChunkOffX = (chunkX + direction.x) << 4; + final int neighbourChunkOffZ = (chunkZ + direction.z) << 4; + final int chunkOffY = chunkY << 4; + for (int i = 0, len = Math.max(centerDelayedChecks, neighbourDelayedChecks); i < len; ++i) { + // try to queue neighbouring data together + // index = x | (z << 4) | (y << 8) + if (i < centerDelayedChecks) { + final int value = this.chunkCheckDelayedUpdatesCenter[i]; + this.checkBlock(lightAccess, currentChunkOffX | (value & 15), + chunkOffY | (value >>> 8), + currentChunkOffZ | ((value >>> 4) & 0xF)); + } + if (i < neighbourDelayedChecks) { + final int value = this.chunkCheckDelayedUpdatesNeighbour[i]; + this.checkBlock(lightAccess, neighbourChunkOffX | (value & 15), + chunkOffY | (value >>> 8), + neighbourChunkOffZ | ((value >>> 4) & 0xF)); + } + } + } + } + + protected void checkChunkEdges(final LightChunkGetter lightAccess, final ChunkAccess chunk, final ShortCollection sections) { + final ChunkPos chunkPos = chunk.getPos(); + final int chunkX = chunkPos.x; + final int chunkZ = chunkPos.z; + + for (final ShortIterator iterator = sections.iterator(); iterator.hasNext();) { + this.checkChunkEdge(lightAccess, chunk, chunkX, iterator.nextShort(), chunkZ); + } + + this.performLightDecrease(lightAccess); + } + + // subclasses should not initialise caches, as this will always be done by the super call + // subclasses should not invoke updateVisible, as this will always be done by the super call + // verifies that light levels on this chunks edges are consistent with this chunk's neighbours + // edges. if they are not, they are decreased (effectively performing the logic in checkBlock). + // This does not resolve skylight source problems. + protected void checkChunkEdges(final LightChunkGetter lightAccess, final ChunkAccess chunk, final int fromSection, final int toSection) { + final ChunkPos chunkPos = chunk.getPos(); + final int chunkX = chunkPos.x; + final int chunkZ = chunkPos.z; + + for (int currSectionY = toSection; currSectionY >= fromSection; --currSectionY) { + this.checkChunkEdge(lightAccess, chunk, chunkX, currSectionY, chunkZ); + } + + this.performLightDecrease(lightAccess); + } + + // pulls light from neighbours, and adds them into the increase queue. does not actually propagate. + protected final void propagateNeighbourLevels(final LightChunkGetter lightAccess, final ChunkAccess chunk, final int fromSection, final int toSection) { + final ChunkPos chunkPos = chunk.getPos(); + final int chunkX = chunkPos.x; + final int chunkZ = chunkPos.z; + + for (int currSectionY = toSection; currSectionY >= fromSection; --currSectionY) { + final SWMRNibbleArray currNibble = this.getNibbleFromCache(chunkX, currSectionY, chunkZ); + if (currNibble == null) { + continue; + } + for (final AxisDirection direction : ONLY_HORIZONTAL_DIRECTIONS) { + final int neighbourOffX = direction.x; + final int neighbourOffZ = direction.z; + + final SWMRNibbleArray neighbourNibble = this.getNibbleFromCache(chunkX + neighbourOffX, + currSectionY, chunkZ + neighbourOffZ); + + if (neighbourNibble == null || !neighbourNibble.isInitialisedUpdating()) { + // can't pull from 0 + continue; + } + + // neighbour chunk + final int incX; + final int incZ; + final int startX; + final int startZ; + + if (neighbourOffX != 0) { + // x direction + incX = 0; + incZ = 1; + + if (direction.x < 0) { + // negative + startX = (chunkX << 4) - 1; + } else { + startX = (chunkX << 4) + 16; + } + startZ = chunkZ << 4; + } else { + // z direction + incX = 1; + incZ = 0; + + if (neighbourOffZ < 0) { + // negative + startZ = (chunkZ << 4) - 1; + } else { + startZ = (chunkZ << 4) + 16; + } + startX = chunkX << 4; + } + + final long propagateDirection = 1L << direction.getOpposite().ordinal(); // we only want to check in this direction towards this chunk + final int encodeOffset = this.coordinateOffset; + + for (int currY = currSectionY << 4, maxY = currY | 15; currY <= maxY; ++currY) { + for (int i = 0, currX = startX, currZ = startZ; i < 16; ++i, currX += incX, currZ += incZ) { + final int level = neighbourNibble.getUpdating( + (currX & 15) + | ((currZ & 15) << 4) + | ((currY & 15) << 8) + ); + + if (level <= 1) { + // nothing to propagate + continue; + } + + this.appendToIncreaseQueue( + ((currX + (currZ << 6) + (currY << (6 + 6)) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((level & 0xFL) << (6 + 6 + 16)) + | (propagateDirection << (6 + 6 + 16 + 4)) + | FLAG_HAS_SIDED_TRANSPARENT_BLOCKS // don't know if the current block is transparent, must check. + ); + } + } + } + } + } + + public static Boolean[] getEmptySectionsForChunk(final ChunkAccess chunk) { + final LevelChunkSection[] sections = chunk.getSections(); + final Boolean[] ret = new Boolean[sections.length]; + + for (int i = 0; i < sections.length; ++i) { + if (sections[i] == null || sections[i].hasOnlyAir()) { + ret[i] = Boolean.TRUE; + } else { + ret[i] = Boolean.FALSE; + } + } + + return ret; + } + + public final void forceHandleEmptySectionChanges(final LightChunkGetter lightAccess, final ChunkAccess chunk, final Boolean[] emptinessChanges) { + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, true); + try { + // force current chunk into cache + this.setChunkInCache(chunkX, chunkZ, chunk); + this.setBlocksForChunkInCache(chunkX, chunkZ, chunk.getSections()); + this.setNibblesForChunkInCache(chunkX, chunkZ, this.getNibblesOnChunk(chunk)); + this.setEmptinessMapCache(chunkX, chunkZ, this.getEmptinessMap(chunk)); + + final boolean[] ret = this.handleEmptySectionChanges(lightAccess, chunk, emptinessChanges, false); + if (ret != null) { + this.setEmptinessMap(chunk, ret); + } + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + public final void handleEmptySectionChanges(final LightChunkGetter lightAccess, final int chunkX, final int chunkZ, + final Boolean[] emptinessChanges) { + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, true); + try { + final ChunkAccess chunk = this.getChunkInCache(chunkX, chunkZ); + if (chunk == null) { + return; + } + final boolean[] ret = this.handleEmptySectionChanges(lightAccess, chunk, emptinessChanges, false); + if (ret != null) { + this.setEmptinessMap(chunk, ret); + } + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + protected abstract void initNibble(final int chunkX, final int chunkY, final int chunkZ, final boolean extrude, final boolean initRemovedNibbles); + + protected abstract void setNibbleNull(final int chunkX, final int chunkY, final int chunkZ); + + // subclasses should not initialise caches, as this will always be done by the super call + // subclasses should not invoke updateVisible, as this will always be done by the super call + // subclasses are guaranteed that this is always called before a changed block set + // newChunk specifies whether the changes describe a "first load" of a chunk or changes to existing, already loaded chunks + // rets non-null when the emptiness map changed and needs to be updated + protected final boolean[] handleEmptySectionChanges(final LightChunkGetter lightAccess, final ChunkAccess chunk, + final Boolean[] emptinessChanges, final boolean unlit) { + final Level world = (Level)lightAccess.getLevel(); + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + + boolean[] chunkEmptinessMap = this.getEmptinessMap(chunkX, chunkZ); + boolean[] ret = null; + final boolean needsInit = unlit || chunkEmptinessMap == null; + if (needsInit) { + this.setEmptinessMapCache(chunkX, chunkZ, ret = chunkEmptinessMap = new boolean[WorldUtil.getTotalSections(world)]); + } + + // update emptiness map + for (int sectionIndex = (emptinessChanges.length - 1); sectionIndex >= 0; --sectionIndex) { + Boolean valueBoxed = emptinessChanges[sectionIndex]; + if (valueBoxed == null) { + if (!needsInit) { + continue; + } + final LevelChunkSection section = this.getChunkSection(chunkX, sectionIndex + this.minSection, chunkZ); + emptinessChanges[sectionIndex] = valueBoxed = section == null || section.hasOnlyAir() ? Boolean.TRUE : Boolean.FALSE; + } + chunkEmptinessMap[sectionIndex] = valueBoxed.booleanValue(); + } + + // now init neighbour nibbles + for (int sectionIndex = (emptinessChanges.length - 1); sectionIndex >= 0; --sectionIndex) { + final Boolean valueBoxed = emptinessChanges[sectionIndex]; + final int sectionY = sectionIndex + this.minSection; + if (valueBoxed == null) { + continue; + } + + final boolean empty = valueBoxed.booleanValue(); + + if (empty) { + continue; + } + + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + // if we're not empty, we also need to initialise nibbles + // note: if we're unlit, we absolutely do not want to extrude, as light data isn't set up + final boolean extrude = (dx | dz) != 0 || !unlit; + for (int dy = 1; dy >= -1; --dy) { + this.initNibble(dx + chunkX, dy + sectionY, dz + chunkZ, extrude, false); + } + } + } + } + + // check for de-init and lazy-init + // lazy init is when chunks are being lit, so at the time they weren't loaded when their neighbours were running + // init checks. + for (int dz = -1; dz <= 1; ++dz) { + for (int dx = -1; dx <= 1; ++dx) { + // does this neighbour have 1 radius loaded? + boolean neighboursLoaded = true; + neighbour_loaded_search: + for (int dz2 = -1; dz2 <= 1; ++dz2) { + for (int dx2 = -1; dx2 <= 1; ++dx2) { + if (this.getEmptinessMap(dx + dx2 + chunkX, dz + dz2 + chunkZ) == null) { + neighboursLoaded = false; + break neighbour_loaded_search; + } + } + } + + for (int sectionY = this.maxLightSection; sectionY >= this.minLightSection; --sectionY) { + // check neighbours to see if we need to de-init this one + boolean allEmpty = true; + neighbour_search: + for (int dy2 = -1; dy2 <= 1; ++dy2) { + for (int dz2 = -1; dz2 <= 1; ++dz2) { + for (int dx2 = -1; dx2 <= 1; ++dx2) { + final int y = sectionY + dy2; + if (y < this.minSection || y > this.maxSection) { + // empty + continue; + } + final boolean[] emptinessMap = this.getEmptinessMap(dx + dx2 + chunkX, dz + dz2 + chunkZ); + if (emptinessMap != null) { + if (!emptinessMap[y - this.minSection]) { + allEmpty = false; + break neighbour_search; + } + } else { + final LevelChunkSection section = this.getChunkSection(dx + dx2 + chunkX, y, dz + dz2 + chunkZ); + if (section != null && !section.hasOnlyAir()) { + allEmpty = false; + break neighbour_search; + } + } + } + } + } + + if (allEmpty & neighboursLoaded) { + // can only de-init when neighbours are loaded + // de-init is fine to delay, as de-init is just an optimisation - it's not required for lighting + // to be correct + + // all were empty, so de-init + this.setNibbleNull(dx + chunkX, sectionY, dz + chunkZ); + } else if (!allEmpty) { + // must init + final boolean extrude = (dx | dz) != 0 || !unlit; + this.initNibble(dx + chunkX, sectionY, dz + chunkZ, extrude, false); + } + } + } + } + + return ret; + } + + public final void checkChunkEdges(final LightChunkGetter lightAccess, final int chunkX, final int chunkZ) { + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, false); + try { + final ChunkAccess chunk = this.getChunkInCache(chunkX, chunkZ); + if (chunk == null) { + return; + } + this.checkChunkEdges(lightAccess, chunk, this.minLightSection, this.maxLightSection); + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + public final void checkChunkEdges(final LightChunkGetter lightAccess, final int chunkX, final int chunkZ, final ShortCollection sections) { + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, false); + try { + final ChunkAccess chunk = this.getChunkInCache(chunkX, chunkZ); + if (chunk == null) { + return; + } + this.checkChunkEdges(lightAccess, chunk, sections); + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + // subclasses should not initialise caches, as this will always be done by the super call + // subclasses should not invoke updateVisible, as this will always be done by the super call + // needsEdgeChecks applies when possibly loading vanilla data, which means we need to validate the current + // chunks light values with respect to neighbours + // subclasses should note that the emptiness changes are propagated BEFORE this is called, so this function + // does not need to detect empty chunks itself (and it should do no handling for them either!) + protected abstract void lightChunk(final LightChunkGetter lightAccess, final ChunkAccess chunk, final boolean needsEdgeChecks); + + public final void light(final LightChunkGetter lightAccess, final ChunkAccess chunk, final Boolean[] emptySections) { + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + this.setupCaches(lightAccess, chunkX * 16 + 7, 128, chunkZ * 16 + 7, true, true); + + try { + final SWMRNibbleArray[] nibbles = getFilledEmptyLight(this.maxLightSection - this.minLightSection + 1); + // force current chunk into cache + this.setChunkInCache(chunkX, chunkZ, chunk); + this.setBlocksForChunkInCache(chunkX, chunkZ, chunk.getSections()); + this.setNibblesForChunkInCache(chunkX, chunkZ, nibbles); + this.setEmptinessMapCache(chunkX, chunkZ, this.getEmptinessMap(chunk)); + + final boolean[] ret = this.handleEmptySectionChanges(lightAccess, chunk, emptySections, true); + if (ret != null) { + this.setEmptinessMap(chunk, ret); + } + this.lightChunk(lightAccess, chunk, true); + this.setNibbles(chunk, nibbles); + this.updateVisible(lightAccess); + } finally { + this.destroyCaches(); + } + } + + public final void relightChunks(final LightChunkGetter lightAccess, final Set chunks, + final Consumer chunkLightCallback, final IntConsumer onComplete) { + // it's recommended for maximum performance that the set is ordered according to a BFS from the center of + // the region of chunks to relight + // it's required that tickets are added for each chunk to keep them loaded + final Long2ObjectOpenHashMap nibblesByChunk = new Long2ObjectOpenHashMap<>(); + final Long2ObjectOpenHashMap emptinessMapByChunk = new Long2ObjectOpenHashMap<>(); + + final int[] neighbourLightOrder = new int[] { + // d = 0 + 0, 0, + // d = 1 + -1, 0, + 0, -1, + 1, 0, + 0, 1, + // d = 2 + -1, 1, + 1, 1, + -1, -1, + 1, -1, + }; + + int lightCalls = 0; + + for (final ChunkPos chunkPos : chunks) { + final int chunkX = chunkPos.x; + final int chunkZ = chunkPos.z; + final ChunkAccess chunk = (ChunkAccess)lightAccess.getChunkForLighting(chunkX, chunkZ); + if (chunk == null || !this.canUseChunk(chunk)) { + throw new IllegalStateException(); + } + + for (int i = 0, len = neighbourLightOrder.length; i < len; i += 2) { + final int dx = neighbourLightOrder[i]; + final int dz = neighbourLightOrder[i + 1]; + final int neighbourX = dx + chunkX; + final int neighbourZ = dz + chunkZ; + + final ChunkAccess neighbour = (ChunkAccess)lightAccess.getChunkForLighting(neighbourX, neighbourZ); + if (neighbour == null || !this.canUseChunk(neighbour)) { + continue; + } + + if (nibblesByChunk.get(CoordinateUtils.getChunkKey(neighbourX, neighbourZ)) != null) { + // lit already called for neighbour, no need to light it now + continue; + } + + // light neighbour chunk + this.setupEncodeOffset(neighbourX * 16 + 7, 128, neighbourZ * 16 + 7); + try { + // insert all neighbouring chunks for this neighbour that we have data for + for (int dz2 = -1; dz2 <= 1; ++dz2) { + for (int dx2 = -1; dx2 <= 1; ++dx2) { + final int neighbourX2 = neighbourX + dx2; + final int neighbourZ2 = neighbourZ + dz2; + final long key = CoordinateUtils.getChunkKey(neighbourX2, neighbourZ2); + final ChunkAccess neighbour2 = (ChunkAccess)lightAccess.getChunkForLighting(neighbourX2, neighbourZ2); + if (neighbour2 == null || !this.canUseChunk(neighbour2)) { + continue; + } + + final SWMRNibbleArray[] nibbles = nibblesByChunk.get(key); + if (nibbles == null) { + // we haven't lit this chunk + continue; + } + + this.setChunkInCache(neighbourX2, neighbourZ2, neighbour2); + this.setBlocksForChunkInCache(neighbourX2, neighbourZ2, neighbour2.getSections()); + this.setNibblesForChunkInCache(neighbourX2, neighbourZ2, nibbles); + this.setEmptinessMapCache(neighbourX2, neighbourZ2, emptinessMapByChunk.get(key)); + } + } + + final long key = CoordinateUtils.getChunkKey(neighbourX, neighbourZ); + + // now insert the neighbour chunk and light it + final SWMRNibbleArray[] nibbles = getFilledEmptyLight(this.world); + nibblesByChunk.put(key, nibbles); + + this.setChunkInCache(neighbourX, neighbourZ, neighbour); + this.setBlocksForChunkInCache(neighbourX, neighbourZ, neighbour.getSections()); + this.setNibblesForChunkInCache(neighbourX, neighbourZ, nibbles); + + final boolean[] neighbourEmptiness = this.handleEmptySectionChanges(lightAccess, neighbour, getEmptySectionsForChunk(neighbour), true); + emptinessMapByChunk.put(key, neighbourEmptiness); + if (chunks.contains(new ChunkPos(neighbourX, neighbourZ))) { + this.setEmptinessMap(neighbour, neighbourEmptiness); + } + + this.lightChunk(lightAccess, neighbour, false); + } finally { + this.destroyCaches(); + } + } + + // done lighting all neighbours, so the chunk is now fully lit + + // make sure nibbles are fully updated before calling back + final SWMRNibbleArray[] nibbles = nibblesByChunk.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + for (final SWMRNibbleArray nibble : nibbles) { + nibble.updateVisible(); + } + + this.setNibbles(chunk, nibbles); + + for (int y = this.minLightSection; y <= this.maxLightSection; ++y) { + lightAccess.onLightUpdate(this.skylightPropagator ? LightLayer.SKY : LightLayer.BLOCK, SectionPos.of(chunkX, y, chunkZ)); + } + + // now do callback + if (chunkLightCallback != null) { + chunkLightCallback.accept(chunkPos); + } + ++lightCalls; + } + + if (onComplete != null) { + onComplete.accept(lightCalls); + } + } + + // contains: + // lower (6 + 6 + 16) = 28 bits: encoded coordinate position (x | (z << 6) | (y << (6 + 6)))) + // next 4 bits: propagated light level (0, 15] + // next 6 bits: propagation direction bitset + // next 24 bits: unused + // last 3 bits: state flags + // state flags: + // whether the increase propagator needs to write the propagated level to the position, used to avoid cascading light + // updates for block sources + protected static final long FLAG_WRITE_LEVEL = Long.MIN_VALUE >>> 2; + // whether the propagation needs to check if its current level is equal to the expected level + // used only in increase propagation + protected static final long FLAG_RECHECK_LEVEL = Long.MIN_VALUE >>> 1; + // whether the propagation needs to consider if its block is conditionally transparent + protected static final long FLAG_HAS_SIDED_TRANSPARENT_BLOCKS = Long.MIN_VALUE; + + protected long[] increaseQueue = new long[16 * 16 * 16]; + protected int increaseQueueInitialLength; + protected long[] decreaseQueue = new long[16 * 16 * 16]; + protected int decreaseQueueInitialLength; + + protected final long[] resizeIncreaseQueue() { + return this.increaseQueue = Arrays.copyOf(this.increaseQueue, this.increaseQueue.length * 2); + } + + protected final long[] resizeDecreaseQueue() { + return this.decreaseQueue = Arrays.copyOf(this.decreaseQueue, this.decreaseQueue.length * 2); + } + + protected final void appendToIncreaseQueue(final long value) { + final int idx = this.increaseQueueInitialLength++; + long[] queue = this.increaseQueue; + if (idx >= queue.length) { + queue = this.resizeIncreaseQueue(); + queue[idx] = value; + } else { + queue[idx] = value; + } + } + + protected final void appendToDecreaseQueue(final long value) { + final int idx = this.decreaseQueueInitialLength++; + long[] queue = this.decreaseQueue; + if (idx >= queue.length) { + queue = this.resizeDecreaseQueue(); + queue[idx] = value; + } else { + queue[idx] = value; + } + } + + protected static final AxisDirection[][] OLD_CHECK_DIRECTIONS = new AxisDirection[1 << 6][]; + protected static final int ALL_DIRECTIONS_BITSET = (1 << 6) - 1; + static { + for (int i = 0; i < OLD_CHECK_DIRECTIONS.length; ++i) { + final List directions = new ArrayList<>(); + for (int bitset = i, len = Integer.bitCount(i), index = 0; index < len; ++index, bitset ^= IntegerUtil.getTrailingBit(bitset)) { + directions.add(AXIS_DIRECTIONS[IntegerUtil.trailingZeros(bitset)]); + } + OLD_CHECK_DIRECTIONS[i] = directions.toArray(new AxisDirection[0]); + } + } + + protected final void performLightIncrease(final LightChunkGetter lightAccess) { + final BlockGetter world = lightAccess.getLevel(); + long[] queue = this.increaseQueue; + int queueReadIndex = 0; + int queueLength = this.increaseQueueInitialLength; + this.increaseQueueInitialLength = 0; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetY = -this.encodeOffsetY; + final int decodeOffsetZ = -this.encodeOffsetZ; + final int encodeOffset = this.coordinateOffset; + final int sectionOffset = this.chunkSectionIndexOffset; + + while (queueReadIndex < queueLength) { + final long queueValue = queue[queueReadIndex++]; + + final int posX = ((int)queueValue & 63) + decodeOffsetX; + final int posZ = (((int)queueValue >>> 6) & 63) + decodeOffsetZ; + final int posY = (((int)queueValue >>> 12) & ((1 << 16) - 1)) + decodeOffsetY; + final int propagatedLightLevel = (int)((queueValue >>> (6 + 6 + 16)) & 0xFL); + final AxisDirection[] checkDirections = OLD_CHECK_DIRECTIONS[(int)((queueValue >>> (6 + 6 + 16 + 4)) & 63L)]; + + if ((queueValue & FLAG_RECHECK_LEVEL) != 0L) { + if (this.getLightLevel(posX, posY, posZ) != propagatedLightLevel) { + // not at the level we expect, so something changed. + continue; + } + } else if ((queueValue & FLAG_WRITE_LEVEL) != 0L) { + // these are used to restore block sources after a propagation decrease + this.setLightLevel(posX, posY, posZ, propagatedLightLevel); + } + + if ((queueValue & FLAG_HAS_SIDED_TRANSPARENT_BLOCKS) == 0L) { + // we don't need to worry about our state here. + for (final AxisDirection propagate : checkDirections) { + final int offX = posX + propagate.x; + final int offY = posY + propagate.y; + final int offZ = posZ + propagate.z; + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + final int localIndex = (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8); + + final SWMRNibbleArray currentNibble = this.nibbleCache[sectionIndex]; + final int currentLevel; + if (currentNibble == null || (currentLevel = currentNibble.getUpdating(localIndex)) >= (propagatedLightLevel - 1)) { + continue; // already at the level we want or unloaded + } + + final BlockState blockState = this.getBlockState(sectionIndex, localIndex); + if (blockState == null) { + continue; + } + final int opacityCached = ((StarlightAbstractBlockState)blockState).starlight$getOpacityIfCached(); + if (opacityCached != -1) { + final int targetLevel = propagatedLightLevel - Math.max(1, opacityCached); + if (targetLevel > currentLevel) { + currentNibble.set(localIndex, targetLevel); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 1) { + if (queueLength >= queue.length) { + queue = this.resizeIncreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | (propagate.everythingButTheOppositeDirection << (6 + 6 + 16 + 4)); + continue; + } + } + continue; + } else { + this.mutablePos1.set(offX, offY, offZ); + long flags = 0; + if (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque()) { + final VoxelShape cullingFace = blockState.getFaceOcclusionShape(world, this.mutablePos1, propagate.getOpposite().nms); + + if (Shapes.faceShapeOccludes(Shapes.empty(), cullingFace)) { + continue; + } + flags |= FLAG_HAS_SIDED_TRANSPARENT_BLOCKS; + } + + final int opacity = blockState.getLightBlock(world, this.mutablePos1); + final int targetLevel = propagatedLightLevel - Math.max(1, opacity); + if (targetLevel <= currentLevel) { + continue; + } + + currentNibble.set(localIndex, targetLevel); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 1) { + if (queueLength >= queue.length) { + queue = this.resizeIncreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | (propagate.everythingButTheOppositeDirection << (6 + 6 + 16 + 4)) + | (flags); + } + continue; + } + } + } else { + // we actually need to worry about our state here + final BlockState fromBlock = this.getBlockState(posX, posY, posZ); + this.mutablePos2.set(posX, posY, posZ); + for (final AxisDirection propagate : checkDirections) { + final int offX = posX + propagate.x; + final int offY = posY + propagate.y; + final int offZ = posZ + propagate.z; + + final VoxelShape fromShape = (((StarlightAbstractBlockState)fromBlock).starlight$isConditionallyFullOpaque()) ? fromBlock.getFaceOcclusionShape(world, this.mutablePos2, propagate.nms) : Shapes.empty(); + + if (fromShape != Shapes.empty() && Shapes.faceShapeOccludes(Shapes.empty(), fromShape)) { + continue; + } + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + final int localIndex = (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8); + + final SWMRNibbleArray currentNibble = this.nibbleCache[sectionIndex]; + final int currentLevel; + + if (currentNibble == null || (currentLevel = currentNibble.getUpdating(localIndex)) >= (propagatedLightLevel - 1)) { + continue; // already at the level we want + } + + final BlockState blockState = this.getBlockState(sectionIndex, localIndex); + if (blockState == null) { + continue; + } + final int opacityCached = ((StarlightAbstractBlockState)blockState).starlight$getOpacityIfCached(); + if (opacityCached != -1) { + final int targetLevel = propagatedLightLevel - Math.max(1, opacityCached); + if (targetLevel > currentLevel) { + currentNibble.set(localIndex, targetLevel); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 1) { + if (queueLength >= queue.length) { + queue = this.resizeIncreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | (propagate.everythingButTheOppositeDirection << (6 + 6 + 16 + 4)); + continue; + } + } + continue; + } else { + this.mutablePos1.set(offX, offY, offZ); + long flags = 0; + if (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque()) { + final VoxelShape cullingFace = blockState.getFaceOcclusionShape(world, this.mutablePos1, propagate.getOpposite().nms); + + if (Shapes.faceShapeOccludes(fromShape, cullingFace)) { + continue; + } + flags |= FLAG_HAS_SIDED_TRANSPARENT_BLOCKS; + } + + final int opacity = blockState.getLightBlock(world, this.mutablePos1); + final int targetLevel = propagatedLightLevel - Math.max(1, opacity); + if (targetLevel <= currentLevel) { + continue; + } + + currentNibble.set(localIndex, targetLevel); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 1) { + if (queueLength >= queue.length) { + queue = this.resizeIncreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | (propagate.everythingButTheOppositeDirection << (6 + 6 + 16 + 4)) + | (flags); + } + continue; + } + } + } + } + } + + protected final void performLightDecrease(final LightChunkGetter lightAccess) { + final BlockGetter world = lightAccess.getLevel(); + long[] queue = this.decreaseQueue; + long[] increaseQueue = this.increaseQueue; + int queueReadIndex = 0; + int queueLength = this.decreaseQueueInitialLength; + this.decreaseQueueInitialLength = 0; + int increaseQueueLength = this.increaseQueueInitialLength; + final int decodeOffsetX = -this.encodeOffsetX; + final int decodeOffsetY = -this.encodeOffsetY; + final int decodeOffsetZ = -this.encodeOffsetZ; + final int encodeOffset = this.coordinateOffset; + final int sectionOffset = this.chunkSectionIndexOffset; + final int emittedMask = this.emittedLightMask; + + while (queueReadIndex < queueLength) { + final long queueValue = queue[queueReadIndex++]; + + final int posX = ((int)queueValue & 63) + decodeOffsetX; + final int posZ = (((int)queueValue >>> 6) & 63) + decodeOffsetZ; + final int posY = (((int)queueValue >>> 12) & ((1 << 16) - 1)) + decodeOffsetY; + final int propagatedLightLevel = (int)((queueValue >>> (6 + 6 + 16)) & 0xF); + final AxisDirection[] checkDirections = OLD_CHECK_DIRECTIONS[(int)((queueValue >>> (6 + 6 + 16 + 4)) & 63)]; + + if ((queueValue & FLAG_HAS_SIDED_TRANSPARENT_BLOCKS) == 0L) { + // we don't need to worry about our state here. + for (final AxisDirection propagate : checkDirections) { + final int offX = posX + propagate.x; + final int offY = posY + propagate.y; + final int offZ = posZ + propagate.z; + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + final int localIndex = (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8); + + final SWMRNibbleArray currentNibble = this.nibbleCache[sectionIndex]; + final int lightLevel; + + if (currentNibble == null || (lightLevel = currentNibble.getUpdating(localIndex)) == 0) { + // already at lowest (or unloaded), nothing we can do + continue; + } + + final BlockState blockState = this.getBlockState(sectionIndex, localIndex); + if (blockState == null) { + continue; + } + final int opacityCached = ((StarlightAbstractBlockState)blockState).starlight$getOpacityIfCached(); + if (opacityCached != -1) { + final int targetLevel = Math.max(0, propagatedLightLevel - Math.max(1, opacityCached)); + if (lightLevel > targetLevel) { + // it looks like another source propagated here, so re-propagate it + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((lightLevel & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | FLAG_RECHECK_LEVEL; + continue; + } + final int emittedLight = blockState.getLightEmission() & emittedMask; + if (emittedLight != 0) { + // re-propagate source + // note: do not set recheck level, or else the propagation will fail + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((emittedLight & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque() ? (FLAG_WRITE_LEVEL | FLAG_HAS_SIDED_TRANSPARENT_BLOCKS) : FLAG_WRITE_LEVEL); + } + + currentNibble.set(localIndex, 0); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 0) { // we actually need to propagate 0 just in case we find a neighbour... + if (queueLength >= queue.length) { + queue = this.resizeDecreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | ((propagate.everythingButTheOppositeDirection) << (6 + 6 + 16 + 4)); + continue; + } + continue; + } else { + this.mutablePos1.set(offX, offY, offZ); + long flags = 0; + if (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque()) { + final VoxelShape cullingFace = blockState.getFaceOcclusionShape(world, this.mutablePos1, propagate.getOpposite().nms); + + if (Shapes.faceShapeOccludes(Shapes.empty(), cullingFace)) { + continue; + } + flags |= FLAG_HAS_SIDED_TRANSPARENT_BLOCKS; + } + + final int opacity = blockState.getLightBlock(world, this.mutablePos1); + final int targetLevel = Math.max(0, propagatedLightLevel - Math.max(1, opacity)); + if (lightLevel > targetLevel) { + // it looks like another source propagated here, so re-propagate it + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((lightLevel & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (FLAG_RECHECK_LEVEL | flags); + continue; + } + final int emittedLight = blockState.getLightEmission() & emittedMask; + if (emittedLight != 0) { + // re-propagate source + // note: do not set recheck level, or else the propagation will fail + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((emittedLight & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (flags | FLAG_WRITE_LEVEL); + } + + currentNibble.set(localIndex, 0); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 0) { + if (queueLength >= queue.length) { + queue = this.resizeDecreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | ((propagate.everythingButTheOppositeDirection) << (6 + 6 + 16 + 4)) + | flags; + } + continue; + } + } + } else { + // we actually need to worry about our state here + final BlockState fromBlock = this.getBlockState(posX, posY, posZ); + this.mutablePos2.set(posX, posY, posZ); + for (final AxisDirection propagate : checkDirections) { + final int offX = posX + propagate.x; + final int offY = posY + propagate.y; + final int offZ = posZ + propagate.z; + + final int sectionIndex = (offX >> 4) + 5 * (offZ >> 4) + (5 * 5) * (offY >> 4) + sectionOffset; + final int localIndex = (offX & 15) | ((offZ & 15) << 4) | ((offY & 15) << 8); + + final VoxelShape fromShape = (((StarlightAbstractBlockState)fromBlock).starlight$isConditionallyFullOpaque()) ? fromBlock.getFaceOcclusionShape(world, this.mutablePos2, propagate.nms) : Shapes.empty(); + + if (fromShape != Shapes.empty() && Shapes.faceShapeOccludes(Shapes.empty(), fromShape)) { + continue; + } + + final SWMRNibbleArray currentNibble = this.nibbleCache[sectionIndex]; + final int lightLevel; + + if (currentNibble == null || (lightLevel = currentNibble.getUpdating(localIndex)) == 0) { + // already at lowest (or unloaded), nothing we can do + continue; + } + + final BlockState blockState = this.getBlockState(sectionIndex, localIndex); + if (blockState == null) { + continue; + } + final int opacityCached = ((StarlightAbstractBlockState)blockState).starlight$getOpacityIfCached(); + if (opacityCached != -1) { + final int targetLevel = Math.max(0, propagatedLightLevel - Math.max(1, opacityCached)); + if (lightLevel > targetLevel) { + // it looks like another source propagated here, so re-propagate it + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((lightLevel & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | FLAG_RECHECK_LEVEL; + continue; + } + final int emittedLight = blockState.getLightEmission() & emittedMask; + if (emittedLight != 0) { + // re-propagate source + // note: do not set recheck level, or else the propagation will fail + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((emittedLight & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque() ? (FLAG_WRITE_LEVEL | FLAG_HAS_SIDED_TRANSPARENT_BLOCKS) : FLAG_WRITE_LEVEL); + } + + currentNibble.set(localIndex, 0); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 0) { // we actually need to propagate 0 just in case we find a neighbour... + if (queueLength >= queue.length) { + queue = this.resizeDecreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | ((propagate.everythingButTheOppositeDirection) << (6 + 6 + 16 + 4)); + continue; + } + continue; + } else { + this.mutablePos1.set(offX, offY, offZ); + long flags = 0; + if (((StarlightAbstractBlockState)blockState).starlight$isConditionallyFullOpaque()) { + final VoxelShape cullingFace = blockState.getFaceOcclusionShape(world, this.mutablePos1, propagate.getOpposite().nms); + + if (Shapes.faceShapeOccludes(fromShape, cullingFace)) { + continue; + } + flags |= FLAG_HAS_SIDED_TRANSPARENT_BLOCKS; + } + + final int opacity = blockState.getLightBlock(world, this.mutablePos1); + final int targetLevel = Math.max(0, propagatedLightLevel - Math.max(1, opacity)); + if (lightLevel > targetLevel) { + // it looks like another source propagated here, so re-propagate it + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((lightLevel & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (FLAG_RECHECK_LEVEL | flags); + continue; + } + final int emittedLight = blockState.getLightEmission() & emittedMask; + if (emittedLight != 0) { + // re-propagate source + // note: do not set recheck level, or else the propagation will fail + if (increaseQueueLength >= increaseQueue.length) { + increaseQueue = this.resizeIncreaseQueue(); + } + increaseQueue[increaseQueueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((emittedLight & 0xFL) << (6 + 6 + 16)) + | (((long)ALL_DIRECTIONS_BITSET) << (6 + 6 + 16 + 4)) + | (flags | FLAG_WRITE_LEVEL); + } + + currentNibble.set(localIndex, 0); + this.postLightUpdate(offX, offY, offZ); + + if (targetLevel > 0) { // we actually need to propagate 0 just in case we find a neighbour... + if (queueLength >= queue.length) { + queue = this.resizeDecreaseQueue(); + } + queue[queueLength++] = + ((offX + (offZ << 6) + (offY << 12) + encodeOffset) & ((1L << (6 + 6 + 16)) - 1)) + | ((targetLevel & 0xFL) << (6 + 6 + 16)) + | ((propagate.everythingButTheOppositeDirection) << (6 + 6 + 16 + 4)) + | flags; + } + continue; + } + } + } + } + + // propagate sources we clobbered + this.increaseQueueInitialLength = increaseQueueLength; + this.performLightIncrease(lightAccess); + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightInterface.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightInterface.java new file mode 100644 index 0000000000000000000000000000000000000000..c64ab41198a5e0c7cbcbe6452af11f82f5938862 --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightInterface.java @@ -0,0 +1,930 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue; +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor; +import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable; +import ca.spottedleaf.moonrise.common.util.CoordinateUtils; +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel; +import ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkStatus; +import ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk; +import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap; +import it.unimi.dsi.fastutil.shorts.ShortCollection; +import it.unimi.dsi.fastutil.shorts.ShortOpenHashSet; +import net.minecraft.core.BlockPos; +import net.minecraft.core.SectionPos; +import net.minecraft.server.level.ChunkLevel; +import net.minecraft.server.level.FullChunkStatus; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.server.level.TicketType; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.DataLayer; +import net.minecraft.world.level.chunk.LightChunkGetter; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import net.minecraft.world.level.lighting.LayerLightEventListener; +import net.minecraft.world.level.lighting.LevelLightEngine; +import java.util.ArrayDeque; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.function.BooleanSupplier; +import java.util.function.Consumer; +import java.util.function.IntConsumer; + +public final class StarLightInterface { + + public static final TicketType CHUNK_WORK_TICKET = TicketType.create("starlight:chunk_work_ticket", Long::compareTo); + public static final int LIGHT_TICKET_LEVEL = ChunkLevel.byStatus(ChunkStatus.LIGHT); + // ticket level = ChunkLevel.byStatus(FullChunkStatus.FULL) - input + public static final int REGION_LIGHT_TICKET_LEVEL = ChunkLevel.byStatus(FullChunkStatus.FULL) - LIGHT_TICKET_LEVEL; + + /** + * Can be {@code null}, indicating the light is all empty. + */ + public final Level world; + public final LightChunkGetter lightAccess; + + private final ArrayDeque cachedSkyPropagators; + private final ArrayDeque cachedBlockPropagators; + + private final LightQueue lightQueue; + + private final LayerLightEventListener skyReader; + private final LayerLightEventListener blockReader; + private final boolean isClientSide; + + public final int minSection; + public final int maxSection; + public final int minLightSection; + public final int maxLightSection; + + public final LevelLightEngine lightEngine; + + private final boolean hasBlockLight; + private final boolean hasSkyLight; + + public StarLightInterface(final LightChunkGetter lightAccess, final boolean hasSkyLight, final boolean hasBlockLight, final LevelLightEngine lightEngine) { + this.lightAccess = lightAccess; + this.world = lightAccess == null ? null : (Level)lightAccess.getLevel(); + this.cachedSkyPropagators = hasSkyLight && lightAccess != null ? new ArrayDeque<>() : null; + this.cachedBlockPropagators = hasBlockLight && lightAccess != null ? new ArrayDeque<>() : null; + this.isClientSide = !(this.world instanceof ServerLevel); + if (this.world == null) { + this.minSection = -4; + this.maxSection = 19; + this.minLightSection = -5; + this.maxLightSection = 20; + } else { + this.minSection = WorldUtil.getMinSection(this.world); + this.maxSection = WorldUtil.getMaxSection(this.world); + this.minLightSection = WorldUtil.getMinLightSection(this.world); + this.maxLightSection = WorldUtil.getMaxLightSection(this.world); + } + + if (this.world instanceof ServerLevel) { + this.lightQueue = new ServerLightQueue(this); + } else { + this.lightQueue = new ClientLightQueue(this); + } + + this.lightEngine = lightEngine; + this.hasBlockLight = hasBlockLight; + this.hasSkyLight = hasSkyLight; + this.skyReader = !hasSkyLight ? LayerLightEventListener.DummyLightLayerEventListener.INSTANCE : new LayerLightEventListener() { + @Override + public void checkBlock(final BlockPos blockPos) { + StarLightInterface.this.lightEngine.checkBlock(blockPos.immutable()); + } + + @Override + public void propagateLightSources(final ChunkPos chunkPos) { + throw new UnsupportedOperationException(); + } + + @Override + public boolean hasLightWork() { + // not really correct... + return StarLightInterface.this.hasUpdates(); + } + + @Override + public int runLightUpdates() { + throw new UnsupportedOperationException(); + } + + @Override + public void setLightEnabled(final ChunkPos chunkPos, final boolean bl) { + throw new UnsupportedOperationException(); + } + + @Override + public DataLayer getDataLayerData(final SectionPos pos) { + final ChunkAccess chunk = StarLightInterface.this.getAnyChunkNow(pos.getX(), pos.getZ()); + if (chunk == null || (!StarLightInterface.this.isClientSide && !chunk.isLightCorrect()) || !chunk.getPersistedStatus().isOrAfter(ChunkStatus.LIGHT)) { + return null; + } + + final int sectionY = pos.getY(); + + if (sectionY > StarLightInterface.this.maxLightSection || sectionY < StarLightInterface.this.minLightSection) { + return null; + } + + if (((StarlightChunk)chunk).starlight$getSkyEmptinessMap() == null) { + return null; + } + + return ((StarlightChunk)chunk).starlight$getSkyNibbles()[sectionY - StarLightInterface.this.minLightSection].toVanillaNibble(); + } + + @Override + public int getLightValue(final BlockPos blockPos) { + return StarLightInterface.this.getSkyLightValue(blockPos, StarLightInterface.this.getAnyChunkNow(blockPos.getX() >> 4, blockPos.getZ() >> 4)); + } + + @Override + public void updateSectionStatus(final SectionPos pos, final boolean notReady) { + StarLightInterface.this.sectionChange(pos, notReady); + } + }; + this.blockReader = !hasBlockLight ? LayerLightEventListener.DummyLightLayerEventListener.INSTANCE : new LayerLightEventListener() { + @Override + public void checkBlock(final BlockPos blockPos) { + StarLightInterface.this.lightEngine.checkBlock(blockPos.immutable()); + } + + @Override + public void propagateLightSources(final ChunkPos chunkPos) { + throw new UnsupportedOperationException(); + } + + @Override + public boolean hasLightWork() { + // not really correct... + return StarLightInterface.this.hasUpdates(); + } + + @Override + public int runLightUpdates() { + throw new UnsupportedOperationException(); + } + + @Override + public void setLightEnabled(final ChunkPos chunkPos, final boolean bl) { + throw new UnsupportedOperationException(); + } + + @Override + public DataLayer getDataLayerData(final SectionPos pos) { + final ChunkAccess chunk = StarLightInterface.this.getAnyChunkNow(pos.getX(), pos.getZ()); + + if (chunk == null || pos.getY() < StarLightInterface.this.minLightSection || pos.getY() > StarLightInterface.this.maxLightSection) { + return null; + } + + return ((StarlightChunk)chunk).starlight$getBlockNibbles()[pos.getY() - StarLightInterface.this.minLightSection].toVanillaNibble(); + } + + @Override + public int getLightValue(final BlockPos blockPos) { + return StarLightInterface.this.getBlockLightValue(blockPos, StarLightInterface.this.getAnyChunkNow(blockPos.getX() >> 4, blockPos.getZ() >> 4)); + } + + @Override + public void updateSectionStatus(final SectionPos pos, final boolean notReady) { + StarLightInterface.this.sectionChange(pos, notReady); + } + }; + } + + public ClientLightQueue getClientLightQueue() { + if (this.lightQueue instanceof ClientLightQueue clientLightQueue) { + return clientLightQueue; + } + return null; + } + + public ServerLightQueue getServerLightQueue() { + if (this.lightQueue instanceof ServerLightQueue serverLightQueue) { + return serverLightQueue; + } + return null; + } + + public boolean hasSkyLight() { + return this.hasSkyLight; + } + + public boolean hasBlockLight() { + return this.hasBlockLight; + } + + public int getSkyLightValue(final BlockPos blockPos, final ChunkAccess chunk) { + if (!this.hasSkyLight) { + return 0; + } + final int x = blockPos.getX(); + int y = blockPos.getY(); + final int z = blockPos.getZ(); + + final int minSection = this.minSection; + final int maxSection = this.maxSection; + final int minLightSection = this.minLightSection; + final int maxLightSection = this.maxLightSection; + + if (chunk == null || (!this.isClientSide && !chunk.isLightCorrect()) || !chunk.getPersistedStatus().isOrAfter(ChunkStatus.LIGHT)) { + return 15; + } + + int sectionY = y >> 4; + + if (sectionY > maxLightSection) { + return 15; + } + + if (sectionY < minLightSection) { + sectionY = minLightSection; + y = sectionY << 4; + } + + final SWMRNibbleArray[] nibbles = ((StarlightChunk)chunk).starlight$getSkyNibbles(); + final SWMRNibbleArray immediate = nibbles[sectionY - minLightSection]; + + if (!immediate.isNullNibbleVisible()) { + return immediate.getVisible(x, y, z); + } + + final boolean[] emptinessMap = ((StarlightChunk)chunk).starlight$getSkyEmptinessMap(); + + if (emptinessMap == null) { + return 15; + } + + // are we above this chunk's lowest empty section? + int lowestY = minLightSection - 1; + for (int currY = maxSection; currY >= minSection; --currY) { + if (emptinessMap[currY - minSection]) { + continue; + } + + // should always be full lit here + lowestY = currY; + break; + } + + if (sectionY > lowestY) { + return 15; + } + + // this nibble is going to depend solely on the skylight data above it + // find first non-null data above (there does exist one, as we just found it above) + for (int currY = sectionY + 1; currY <= maxLightSection; ++currY) { + final SWMRNibbleArray nibble = nibbles[currY - minLightSection]; + if (!nibble.isNullNibbleVisible()) { + return nibble.getVisible(x, 0, z); + } + } + + // should never reach here + return 15; + } + + public int getBlockLightValue(final BlockPos blockPos, final ChunkAccess chunk) { + if (!this.hasBlockLight) { + return 0; + } + final int y = blockPos.getY(); + final int cy = y >> 4; + + final int minLightSection = this.minLightSection; + final int maxLightSection = this.maxLightSection; + + if (cy < minLightSection || cy > maxLightSection) { + return 0; + } + + if (chunk == null) { + return 0; + } + + final SWMRNibbleArray nibble = ((StarlightChunk)chunk).starlight$getBlockNibbles()[cy - minLightSection]; + return nibble.getVisible(blockPos.getX(), y, blockPos.getZ()); + } + + public int getRawBrightness(final BlockPos pos, final int ambientDarkness) { + final ChunkAccess chunk = this.getAnyChunkNow(pos.getX() >> 4, pos.getZ() >> 4); + + final int sky = this.getSkyLightValue(pos, chunk) - ambientDarkness; + // Don't fetch the block light level if the skylight level is 15, since the value will never be higher. + if (sky == 15) { + return 15; + } + final int block = this.getBlockLightValue(pos, chunk); + return Math.max(sky, block); + } + + public LayerLightEventListener getSkyReader() { + return this.skyReader; + } + + public LayerLightEventListener getBlockReader() { + return this.blockReader; + } + + public boolean isClientSide() { + return this.isClientSide; + } + + public ChunkAccess getAnyChunkNow(final int chunkX, final int chunkZ) { + if (this.world == null) { + // empty world + return null; + } + return ((ChunkSystemLevel)this.world).moonrise$getAnyChunkIfLoaded(chunkX, chunkZ); + } + + public boolean hasUpdates() { + return !this.lightQueue.isEmpty(); + } + + public Level getWorld() { + return this.world; + } + + public LightChunkGetter getLightAccess() { + return this.lightAccess; + } + + public SkyStarLightEngine getSkyLightEngine() { + if (this.cachedSkyPropagators == null) { + return null; + } + final SkyStarLightEngine ret; + synchronized (this.cachedSkyPropagators) { + ret = this.cachedSkyPropagators.pollFirst(); + } + + if (ret == null) { + return new SkyStarLightEngine(this.world); + } + return ret; + } + + public void releaseSkyLightEngine(final SkyStarLightEngine engine) { + if (this.cachedSkyPropagators == null) { + return; + } + synchronized (this.cachedSkyPropagators) { + this.cachedSkyPropagators.addFirst(engine); + } + } + + public BlockStarLightEngine getBlockLightEngine() { + if (this.cachedBlockPropagators == null) { + return null; + } + final BlockStarLightEngine ret; + synchronized (this.cachedBlockPropagators) { + ret = this.cachedBlockPropagators.pollFirst(); + } + + if (ret == null) { + return new BlockStarLightEngine(this.world); + } + return ret; + } + + public void releaseBlockLightEngine(final BlockStarLightEngine engine) { + if (this.cachedBlockPropagators == null) { + return; + } + synchronized (this.cachedBlockPropagators) { + this.cachedBlockPropagators.addFirst(engine); + } + } + + public LightQueue.ChunkTasks blockChange(final BlockPos pos) { + if (this.world == null || pos.getY() < WorldUtil.getMinBlockY(this.world) || pos.getY() > WorldUtil.getMaxBlockY(this.world)) { // empty world + return null; + } + + return this.lightQueue.queueBlockChange(pos); + } + + public LightQueue.ChunkTasks sectionChange(final SectionPos pos, final boolean newEmptyValue) { + if (this.world == null) { // empty world + return null; + } + + return this.lightQueue.queueSectionChange(pos, newEmptyValue); + } + + public void forceLoadInChunk(final ChunkAccess chunk, final Boolean[] emptySections) { + final SkyStarLightEngine skyEngine = this.getSkyLightEngine(); + final BlockStarLightEngine blockEngine = this.getBlockLightEngine(); + + try { + if (skyEngine != null) { + skyEngine.forceHandleEmptySectionChanges(this.lightAccess, chunk, emptySections); + } + if (blockEngine != null) { + blockEngine.forceHandleEmptySectionChanges(this.lightAccess, chunk, emptySections); + } + } finally { + this.releaseSkyLightEngine(skyEngine); + this.releaseBlockLightEngine(blockEngine); + } + } + + public void loadInChunk(final int chunkX, final int chunkZ, final Boolean[] emptySections) { + final SkyStarLightEngine skyEngine = this.getSkyLightEngine(); + final BlockStarLightEngine blockEngine = this.getBlockLightEngine(); + + try { + if (skyEngine != null) { + skyEngine.handleEmptySectionChanges(this.lightAccess, chunkX, chunkZ, emptySections); + } + if (blockEngine != null) { + blockEngine.handleEmptySectionChanges(this.lightAccess, chunkX, chunkZ, emptySections); + } + } finally { + this.releaseSkyLightEngine(skyEngine); + this.releaseBlockLightEngine(blockEngine); + } + } + + public void lightChunk(final ChunkAccess chunk, final Boolean[] emptySections) { + final SkyStarLightEngine skyEngine = this.getSkyLightEngine(); + final BlockStarLightEngine blockEngine = this.getBlockLightEngine(); + + try { + if (skyEngine != null) { + skyEngine.light(this.lightAccess, chunk, emptySections); + } + if (blockEngine != null) { + blockEngine.light(this.lightAccess, chunk, emptySections); + } + } finally { + this.releaseSkyLightEngine(skyEngine); + this.releaseBlockLightEngine(blockEngine); + } + } + + public void relightChunks(final Set chunks, final Consumer chunkLightCallback, + final IntConsumer onComplete) { + final SkyStarLightEngine skyEngine = this.getSkyLightEngine(); + final BlockStarLightEngine blockEngine = this.getBlockLightEngine(); + + try { + if (skyEngine != null) { + skyEngine.relightChunks(this.lightAccess, chunks, blockEngine == null ? chunkLightCallback : null, + blockEngine == null ? onComplete : null); + } + if (blockEngine != null) { + blockEngine.relightChunks(this.lightAccess, chunks, chunkLightCallback, onComplete); + } + } finally { + this.releaseSkyLightEngine(skyEngine); + this.releaseBlockLightEngine(blockEngine); + } + } + + public void checkChunkEdges(final int chunkX, final int chunkZ) { + this.checkSkyEdges(chunkX, chunkZ); + this.checkBlockEdges(chunkX, chunkZ); + } + + public void checkSkyEdges(final int chunkX, final int chunkZ) { + final SkyStarLightEngine skyEngine = this.getSkyLightEngine(); + + try { + if (skyEngine != null) { + skyEngine.checkChunkEdges(this.lightAccess, chunkX, chunkZ); + } + } finally { + this.releaseSkyLightEngine(skyEngine); + } + } + + public void checkBlockEdges(final int chunkX, final int chunkZ) { + final BlockStarLightEngine blockEngine = this.getBlockLightEngine(); + try { + if (blockEngine != null) { + blockEngine.checkChunkEdges(this.lightAccess, chunkX, chunkZ); + } + } finally { + this.releaseBlockLightEngine(blockEngine); + } + } + + public void propagateChanges() { + final LightQueue lightQueue = this.lightQueue; + if (lightQueue instanceof ClientLightQueue clientLightQueue) { + clientLightQueue.drainTasks(); + } // else: invalid usage, although we won't throw because mods... + } + + public static abstract class LightQueue { + + protected final StarLightInterface lightInterface; + + public LightQueue(final StarLightInterface lightInterface) { + this.lightInterface = lightInterface; + } + + public abstract boolean isEmpty(); + + public abstract ChunkTasks queueBlockChange(final BlockPos pos); + + public abstract ChunkTasks queueSectionChange(final SectionPos pos, final boolean newEmptyValue); + + public abstract ChunkTasks queueChunkSkylightEdgeCheck(final SectionPos pos, final ShortCollection sections); + + public abstract ChunkTasks queueChunkBlocklightEdgeCheck(final SectionPos pos, final ShortCollection sections); + + public static abstract class ChunkTasks implements Runnable { + + public final long chunkCoordinate; + + protected final StarLightInterface lightEngine; + protected final LightQueue queue; + protected final MultiThreadedQueue onComplete = new MultiThreadedQueue<>(); + protected final Set changedPositions = new HashSet<>(); + protected Boolean[] changedSectionSet; + protected ShortOpenHashSet queuedEdgeChecksSky; + protected ShortOpenHashSet queuedEdgeChecksBlock; + protected List lightTasks; + + public ChunkTasks(final long chunkCoordinate, final StarLightInterface lightEngine, final LightQueue queue) { + this.chunkCoordinate = chunkCoordinate; + this.lightEngine = lightEngine; + this.queue = queue; + } + + @Override + public abstract void run(); + + public void queueOrRunTask(final Runnable run) { + if (!this.onComplete.add(run)) { + run.run(); + } + } + + protected void addChangedPosition(final BlockPos pos) { + this.changedPositions.add(pos.immutable()); + } + + protected void setChangedSection(final int y, final Boolean newEmptyValue) { + if (this.changedSectionSet == null) { + this.changedSectionSet = new Boolean[this.lightEngine.maxSection - this.lightEngine.minSection + 1]; + } + this.changedSectionSet[y - this.lightEngine.minSection] = newEmptyValue; + } + + protected void addLightTask(final BooleanSupplier lightTask) { + if (this.lightTasks == null) { + this.lightTasks = new ArrayList<>(); + } + this.lightTasks.add(lightTask); + } + + protected void addEdgeChecksSky(final ShortCollection values) { + if (this.queuedEdgeChecksSky == null) { + this.queuedEdgeChecksSky = new ShortOpenHashSet(Math.max(8, values.size())); + } + this.queuedEdgeChecksSky.addAll(values); + } + + protected void addEdgeChecksBlock(final ShortCollection values) { + if (this.queuedEdgeChecksBlock == null) { + this.queuedEdgeChecksBlock = new ShortOpenHashSet(Math.max(8, values.size())); + } + this.queuedEdgeChecksBlock.addAll(values); + } + + protected final void runTasks() { + boolean litChunk = false; + if (this.lightTasks != null) { + for (final BooleanSupplier run : this.lightTasks) { + if (run.getAsBoolean()) { + litChunk = true; + break; + } + } + } + + if (!litChunk) { + final SkyStarLightEngine skyEngine = this.lightEngine.getSkyLightEngine(); + final BlockStarLightEngine blockEngine = this.lightEngine.getBlockLightEngine(); + try { + final long coordinate = this.chunkCoordinate; + final int chunkX = CoordinateUtils.getChunkX(coordinate); + final int chunkZ = CoordinateUtils.getChunkZ(coordinate); + + final Set positions = this.changedPositions; + final Boolean[] sectionChanges = this.changedSectionSet; + + if (skyEngine != null && (!positions.isEmpty() || sectionChanges != null)) { + skyEngine.blocksChangedInChunk(this.lightEngine.getLightAccess(), chunkX, chunkZ, positions, sectionChanges); + } + if (blockEngine != null && (!positions.isEmpty() || sectionChanges != null)) { + blockEngine.blocksChangedInChunk(this.lightEngine.getLightAccess(), chunkX, chunkZ, positions, sectionChanges); + } + + if (skyEngine != null && this.queuedEdgeChecksSky != null) { + skyEngine.checkChunkEdges(this.lightEngine.getLightAccess(), chunkX, chunkZ, this.queuedEdgeChecksSky); + } + if (blockEngine != null && this.queuedEdgeChecksBlock != null) { + blockEngine.checkChunkEdges(this.lightEngine.getLightAccess(), chunkX, chunkZ, this.queuedEdgeChecksBlock); + } + } finally { + this.lightEngine.releaseSkyLightEngine(skyEngine); + this.lightEngine.releaseBlockLightEngine(blockEngine); + } + } + + Runnable run; + while ((run = this.onComplete.pollOrBlockAdds()) != null) { + run.run(); + } + } + } + } + + public static final class ClientLightQueue extends LightQueue { + + private final Long2ObjectLinkedOpenHashMap chunkTasks = new Long2ObjectLinkedOpenHashMap<>(); + + public ClientLightQueue(final StarLightInterface lightInterface) { + super(lightInterface); + } + + @Override + public synchronized boolean isEmpty() { + return this.chunkTasks.isEmpty(); + } + + // must hold synchronized lock on this object + private ClientChunkTasks getOrCreate(final long key) { + return this.chunkTasks.computeIfAbsent(key, (final long keyInMap) -> { + return new ClientChunkTasks(keyInMap, ClientLightQueue.this.lightInterface, ClientLightQueue.this); + }); + } + + @Override + public synchronized ClientChunkTasks queueBlockChange(final BlockPos pos) { + final ClientChunkTasks tasks = this.getOrCreate(CoordinateUtils.getChunkKey(pos)); + tasks.addChangedPosition(pos); + return tasks; + } + + @Override + public synchronized ClientChunkTasks queueSectionChange(final SectionPos pos, final boolean newEmptyValue) { + final ClientChunkTasks tasks = this.getOrCreate(CoordinateUtils.getChunkKey(pos)); + + tasks.setChangedSection(pos.getY(), Boolean.valueOf(newEmptyValue)); + + return tasks; + } + + @Override + public synchronized ClientChunkTasks queueChunkSkylightEdgeCheck(final SectionPos pos, final ShortCollection sections) { + final ClientChunkTasks tasks = this.getOrCreate(CoordinateUtils.getChunkKey(pos)); + + tasks.addEdgeChecksSky(sections); + + return tasks; + } + + @Override + public synchronized ClientChunkTasks queueChunkBlocklightEdgeCheck(final SectionPos pos, final ShortCollection sections) { + final ClientChunkTasks tasks = this.getOrCreate(CoordinateUtils.getChunkKey(pos)); + + tasks.addEdgeChecksBlock(sections); + + return tasks; + } + + public synchronized ClientChunkTasks removeFirstTask() { + if (this.chunkTasks.isEmpty()) { + return null; + } + return this.chunkTasks.removeFirst(); + } + + public void drainTasks() { + ClientChunkTasks task; + while ((task = this.removeFirstTask()) != null) { + task.runTasks(); + } + } + + public static final class ClientChunkTasks extends ChunkTasks { + + public ClientChunkTasks(final long chunkCoordinate, final StarLightInterface lightEngine, final ClientLightQueue queue) { + super(chunkCoordinate, lightEngine, queue); + } + + @Override + public void run() { + this.runTasks(); + } + } + } + + public static final class ServerLightQueue extends LightQueue { + + private final ConcurrentLong2ReferenceChainedHashTable chunkTasks = new ConcurrentLong2ReferenceChainedHashTable<>(); + + public ServerLightQueue(final StarLightInterface lightInterface) { + super(lightInterface); + } + + public void lowerPriority(final int chunkX, final int chunkZ, final PrioritisedExecutor.Priority priority) { + final ServerChunkTasks task = this.chunkTasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (task != null) { + task.lowerPriority(priority); + } + } + + public void setPriority(final int chunkX, final int chunkZ, final PrioritisedExecutor.Priority priority) { + final ServerChunkTasks task = this.chunkTasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (task != null) { + task.setPriority(priority); + } + } + + public void raisePriority(final int chunkX, final int chunkZ, final PrioritisedExecutor.Priority priority) { + final ServerChunkTasks task = this.chunkTasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (task != null) { + task.raisePriority(priority); + } + } + + public PrioritisedExecutor.Priority getPriority(final int chunkX, final int chunkZ) { + final ServerChunkTasks task = this.chunkTasks.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (task != null) { + return task.getPriority(); + } + + return PrioritisedExecutor.Priority.COMPLETING; + } + + @Override + public boolean isEmpty() { + return this.chunkTasks.isEmpty(); + } + + @Override + public ServerChunkTasks queueBlockChange(final BlockPos pos) { + final ServerChunkTasks ret = this.chunkTasks.compute(CoordinateUtils.getChunkKey(pos), (final long keyInMap, ServerChunkTasks valueInMap) -> { + if (valueInMap == null) { + valueInMap = new ServerChunkTasks( + keyInMap, ServerLightQueue.this.lightInterface, ServerLightQueue.this + ); + } + valueInMap.addChangedPosition(pos); + return valueInMap; + }); + + ret.schedule(); + + return ret; + } + + @Override + public ServerChunkTasks queueSectionChange(final SectionPos pos, final boolean newEmptyValue) { + final ServerChunkTasks ret = this.chunkTasks.compute(CoordinateUtils.getChunkKey(pos), (final long keyInMap, ServerChunkTasks valueInMap) -> { + if (valueInMap == null) { + valueInMap = new ServerChunkTasks( + keyInMap, ServerLightQueue.this.lightInterface, ServerLightQueue.this + ); + } + + valueInMap.setChangedSection(pos.getY(), Boolean.valueOf(newEmptyValue)); + + return valueInMap; + }); + + ret.schedule(); + + return ret; + } + + public ServerChunkTasks queueChunkLightTask(final ChunkPos pos, final BooleanSupplier lightTask, final PrioritisedExecutor.Priority priority) { + final ServerChunkTasks ret = this.chunkTasks.compute(CoordinateUtils.getChunkKey(pos), (final long keyInMap, ServerChunkTasks valueInMap) -> { + if (valueInMap == null) { + valueInMap = new ServerChunkTasks( + keyInMap, ServerLightQueue.this.lightInterface, ServerLightQueue.this, priority + ); + } + + valueInMap.addLightTask(lightTask); + + return valueInMap; + }); + + ret.schedule(); + + return ret; + } + + @Override + public ServerChunkTasks queueChunkSkylightEdgeCheck(final SectionPos pos, final ShortCollection sections) { + final ServerChunkTasks ret = this.chunkTasks.compute(CoordinateUtils.getChunkKey(pos), (final long keyInMap, ServerChunkTasks valueInMap) -> { + if (valueInMap == null) { + valueInMap = new ServerChunkTasks( + keyInMap, ServerLightQueue.this.lightInterface, ServerLightQueue.this + ); + } + + valueInMap.addEdgeChecksSky(sections); + + return valueInMap; + }); + + ret.schedule(); + + return ret; + } + + @Override + public ServerChunkTasks queueChunkBlocklightEdgeCheck(final SectionPos pos, final ShortCollection sections) { + final ServerChunkTasks ret = this.chunkTasks.compute(CoordinateUtils.getChunkKey(pos), (final long keyInMap, ServerChunkTasks valueInMap) -> { + if (valueInMap == null) { + valueInMap = new ServerChunkTasks( + keyInMap, ServerLightQueue.this.lightInterface, ServerLightQueue.this + ); + } + + valueInMap.addEdgeChecksBlock(sections); + + return valueInMap; + }); + + ret.schedule(); + + return ret; + } + + public static final class ServerChunkTasks extends ChunkTasks { + + private final AtomicBoolean ticketAdded = new AtomicBoolean(); + private final PrioritisedExecutor.PrioritisedTask task; + + public ServerChunkTasks(final long chunkCoordinate, final StarLightInterface lightEngine, + final ServerLightQueue queue) { + this(chunkCoordinate, lightEngine, queue, PrioritisedExecutor.Priority.NORMAL); + } + + public ServerChunkTasks(final long chunkCoordinate, final StarLightInterface lightEngine, + final ServerLightQueue queue, final PrioritisedExecutor.Priority priority) { + super(chunkCoordinate, lightEngine, queue); + this.task = ((ChunkSystemServerLevel)(ServerLevel)lightEngine.getWorld()).moonrise$getChunkTaskScheduler().radiusAwareScheduler.createTask( + CoordinateUtils.getChunkX(chunkCoordinate), CoordinateUtils.getChunkZ(chunkCoordinate), + ((ChunkSystemChunkStatus)ChunkStatus.LIGHT).moonrise$getWriteRadius(), this, priority + ); + } + + public boolean markTicketAdded() { + return !this.ticketAdded.get() && !this.ticketAdded.getAndSet(true); + } + + public void schedule() { + this.task.queue(); + } + + public boolean cancel() { + return this.task.cancel(); + } + + public PrioritisedExecutor.Priority getPriority() { + return this.task.getPriority(); + } + + public void lowerPriority(final PrioritisedExecutor.Priority priority) { + this.task.lowerPriority(priority); + } + + public void setPriority(final PrioritisedExecutor.Priority priority) { + this.task.setPriority(priority); + } + + public void raisePriority(final PrioritisedExecutor.Priority priority) { + this.task.raisePriority(priority); + } + + @Override + public void run() { + ((ServerLightQueue)this.queue).chunkTasks.remove(this.chunkCoordinate, this); + + this.runTasks(); + } + } + } +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightLightingProvider.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightLightingProvider.java new file mode 100644 index 0000000000000000000000000000000000000000..39ec319d0899a6e26f29fa7a6ead4bda78ecbaeb --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/light/StarLightLightingProvider.java @@ -0,0 +1,20 @@ +package ca.spottedleaf.moonrise.patches.starlight.light; + +import net.minecraft.core.SectionPos; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.LightLayer; +import net.minecraft.world.level.chunk.DataLayer; +import net.minecraft.world.level.chunk.LevelChunk; + +public interface StarLightLightingProvider { + + public StarLightInterface starlight$getLightEngine(); + + public void starlight$clientUpdateLight(final LightLayer lightType, final SectionPos pos, + final DataLayer nibble, final boolean trustEdges); + + public void starlight$clientRemoveLightData(final ChunkPos chunkPos); + + public void starlight$clientChunkLoad(final ChunkPos pos, final LevelChunk chunk); + +} diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/starlight/util/SaveUtil.java b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/util/SaveUtil.java new file mode 100644 index 0000000000000000000000000000000000000000..57692a503e147a00ac4e1586cd78e12b71a80d3f --- /dev/null +++ b/src/main/java/ca/spottedleaf/moonrise/patches/starlight/util/SaveUtil.java @@ -0,0 +1,188 @@ +package ca.spottedleaf.moonrise.patches.starlight.util; + +import ca.spottedleaf.moonrise.common.util.WorldUtil; +import ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk; +import ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray; +import ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine; +import com.mojang.logging.LogUtils; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.nbt.ListTag; +import net.minecraft.server.level.ServerLevel; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.chunk.ChunkAccess; +import net.minecraft.world.level.chunk.status.ChunkStatus; +import org.slf4j.Logger; + +public final class SaveUtil { + + private static final Logger LOGGER = LogUtils.getLogger(); + + private static final int STARLIGHT_LIGHT_VERSION = 9; + + public static int getLightVersion() { + return STARLIGHT_LIGHT_VERSION; + } + + private static final String BLOCKLIGHT_STATE_TAG = "starlight.blocklight_state"; + private static final String SKYLIGHT_STATE_TAG = "starlight.skylight_state"; + private static final String STARLIGHT_VERSION_TAG = "starlight.light_version"; + + public static void saveLightHook(final Level world, final ChunkAccess chunk, final CompoundTag nbt) { + try { + saveLightHookReal(world, chunk, nbt); + } catch (final Throwable ex) { + // failing to inject is not fatal so we catch anything here. if it fails, it will have correctly set lit to false + // for Vanilla to relight on load and it will not set our lit tag so we will relight on load + LOGGER.warn("Failed to inject light data into save data for chunk " + chunk.getPos() + ", chunk light will be recalculated on its next load", ex); + } + } + + private static void saveLightHookReal(final Level world, final ChunkAccess chunk, final CompoundTag tag) { + if (tag == null) { + return; + } + + final int minSection = WorldUtil.getMinLightSection(world); + final int maxSection = WorldUtil.getMaxLightSection(world); + + SWMRNibbleArray[] blockNibbles = ((StarlightChunk)chunk).starlight$getBlockNibbles(); + SWMRNibbleArray[] skyNibbles = ((StarlightChunk)chunk).starlight$getSkyNibbles(); + + boolean lit = chunk.isLightCorrect() || !(world instanceof ServerLevel); + // diff start - store our tag for whether light data is init'd + if (lit) { + tag.putBoolean("isLightOn", false); + } + // diff end - store our tag for whether light data is init'd + ChunkStatus status = ChunkStatus.byName(tag.getString("Status")); + + CompoundTag[] sections = new CompoundTag[maxSection - minSection + 1]; + + ListTag sectionsStored = tag.getList("sections", 10); + + for (int i = 0; i < sectionsStored.size(); ++i) { + CompoundTag sectionStored = sectionsStored.getCompound(i); + int k = sectionStored.getByte("Y"); + + // strip light data + sectionStored.remove("BlockLight"); + sectionStored.remove("SkyLight"); + + if (!sectionStored.isEmpty()) { + sections[k - minSection] = sectionStored; + } + } + + if (lit && status.isOrAfter(ChunkStatus.LIGHT)) { + for (int i = minSection; i <= maxSection; ++i) { + SWMRNibbleArray.SaveState blockNibble = blockNibbles[i - minSection].getSaveState(); + SWMRNibbleArray.SaveState skyNibble = skyNibbles[i - minSection].getSaveState(); + if (blockNibble != null || skyNibble != null) { + CompoundTag section = sections[i - minSection]; + if (section == null) { + section = new CompoundTag(); + section.putByte("Y", (byte)i); + sections[i - minSection] = section; + } + + // we store under the same key so mod programs editing nbt + // can still read the data, hopefully. + // however, for compatibility we store chunks as unlit so vanilla + // is forced to re-light them if it encounters our data. It's too much of a burden + // to try and maintain compatibility with a broken and inferior skylight management system. + + if (blockNibble != null) { + if (blockNibble.data != null) { + section.putByteArray("BlockLight", blockNibble.data); + } + section.putInt(BLOCKLIGHT_STATE_TAG, blockNibble.state); + } + + if (skyNibble != null) { + if (skyNibble.data != null) { + section.putByteArray("SkyLight", skyNibble.data); + } + section.putInt(SKYLIGHT_STATE_TAG, skyNibble.state); + } + } + } + } + + // rewrite section list + sectionsStored.clear(); + for (CompoundTag section : sections) { + if (section != null) { + sectionsStored.add(section); + } + } + tag.put("sections", sectionsStored); + if (lit) { + tag.putInt(STARLIGHT_VERSION_TAG, STARLIGHT_LIGHT_VERSION); // only mark as fully lit after we have successfully injected our data + } + } + + public static void loadLightHook(final Level world, final ChunkPos pos, final CompoundTag tag, final ChunkAccess into) { + try { + loadLightHookReal(world, pos, tag, into); + } catch (final Throwable ex) { + // failing to inject is not fatal so we catch anything here. if it fails, then we simply relight. Not a problem, we get correct + // lighting in both cases. + LOGGER.warn("Failed to load light for chunk " + pos + ", light will be recalculated", ex); + } + } + + private static void loadLightHookReal(final Level world, final ChunkPos pos, final CompoundTag tag, final ChunkAccess into) { + if (into == null) { + return; + } + final int minSection = WorldUtil.getMinLightSection(world); + final int maxSection = WorldUtil.getMaxLightSection(world); + + into.setLightCorrect(false); // mark as unlit in case we fail parsing + + SWMRNibbleArray[] blockNibbles = StarLightEngine.getFilledEmptyLight(world); + SWMRNibbleArray[] skyNibbles = StarLightEngine.getFilledEmptyLight(world); + + + // start copy from the original method + boolean lit = tag.get("isLightOn") != null && tag.getInt(STARLIGHT_VERSION_TAG) == STARLIGHT_LIGHT_VERSION; + boolean canReadSky = world.dimensionType().hasSkyLight(); + ChunkStatus status = ChunkStatus.byName(tag.getString("Status")); + if (lit && status.isOrAfter(ChunkStatus.LIGHT)) { // diff - we add the status check here + ListTag sections = tag.getList("sections", 10); + + for (int i = 0; i < sections.size(); ++i) { + CompoundTag sectionData = sections.getCompound(i); + int y = sectionData.getByte("Y"); + + if (sectionData.contains("BlockLight", 7)) { + // this is where our diff is + blockNibbles[y - minSection] = new SWMRNibbleArray(sectionData.getByteArray("BlockLight").clone(), sectionData.getInt(BLOCKLIGHT_STATE_TAG)); // clone for data safety + } else { + blockNibbles[y - minSection] = new SWMRNibbleArray(null, sectionData.getInt(BLOCKLIGHT_STATE_TAG)); + } + + if (canReadSky) { + if (sectionData.contains("SkyLight", 7)) { + // we store under the same key so mod programs editing nbt + // can still read the data, hopefully. + // however, for compatibility we store chunks as unlit so vanilla + // is forced to re-light them if it encounters our data. It's too much of a burden + // to try and maintain compatibility with a broken and inferior skylight management system. + skyNibbles[y - minSection] = new SWMRNibbleArray(sectionData.getByteArray("SkyLight").clone(), sectionData.getInt(SKYLIGHT_STATE_TAG)); // clone for data safety + } else { + skyNibbles[y - minSection] = new SWMRNibbleArray(null, sectionData.getInt(SKYLIGHT_STATE_TAG)); + } + } + } + } + // end copy from vanilla + + ((StarlightChunk)into).starlight$setBlockNibbles(blockNibbles); + ((StarlightChunk)into).starlight$setSkyNibbles(skyNibbles); + into.setLightCorrect(lit); // now we set lit here, only after we've correctly parsed data + } + + private SaveUtil() {} +} diff --git a/src/main/java/io/papermc/paper/chunk/system/ChunkSystem.java b/src/main/java/io/papermc/paper/chunk/system/ChunkSystem.java index 0d0cb3e63acd5156b6f9d6d78cc949b0af36a77b..dd1649abe57d7191c15a9b2862d5fd11ff0706b1 100644 --- a/src/main/java/io/papermc/paper/chunk/system/ChunkSystem.java +++ b/src/main/java/io/papermc/paper/chunk/system/ChunkSystem.java @@ -25,6 +25,10 @@ import java.util.List; import java.util.concurrent.CompletableFuture; import java.util.function.Consumer; +/** + * @deprecated Use {@link ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem} + */ +@Deprecated(forRemoval = true) public final class ChunkSystem { private static final Logger LOGGER = LogUtils.getLogger(); @@ -35,31 +39,17 @@ public final class ChunkSystem { } public static void scheduleChunkTask(final ServerLevel level, final int chunkX, final int chunkZ, final Runnable run) { - scheduleChunkTask(level, chunkX, chunkZ, run, PrioritisedExecutor.Priority.NORMAL); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleChunkTask(level, chunkX, chunkZ, run); // Paper - reroute } public static void scheduleChunkTask(final ServerLevel level, final int chunkX, final int chunkZ, final Runnable run, final PrioritisedExecutor.Priority priority) { - level.chunkSource.mainThreadProcessor.execute(run); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleChunkTask(level, chunkX, chunkZ, run, priority); // Paper - reroute } public static void scheduleChunkLoad(final ServerLevel level, final int chunkX, final int chunkZ, final boolean gen, final ChunkStatus toStatus, final boolean addTicket, final PrioritisedExecutor.Priority priority, final Consumer onComplete) { - if (gen) { - scheduleChunkLoad(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); - return; - } - scheduleChunkLoad(level, chunkX, chunkZ, ChunkStatus.EMPTY, addTicket, priority, (final ChunkAccess chunk) -> { - if (chunk == null) { - onComplete.accept(null); - } else { - if (chunk.getPersistedStatus().isOrAfter(toStatus)) { - scheduleChunkLoad(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); - } else { - onComplete.accept(null); - } - } - }); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleChunkLoad(level, chunkX, chunkZ, gen, toStatus, addTicket, priority, onComplete); // Paper - reroute } static final TicketType CHUNK_LOAD = TicketType.create("chunk_load", Long::compareTo); @@ -67,164 +57,29 @@ public final class ChunkSystem { private static long chunkLoadCounter = 0L; public static void scheduleChunkLoad(final ServerLevel level, final int chunkX, final int chunkZ, final ChunkStatus toStatus, final boolean addTicket, final PrioritisedExecutor.Priority priority, final Consumer onComplete) { - if (!Bukkit.isPrimaryThread()) { - scheduleChunkTask(level, chunkX, chunkZ, () -> { - scheduleChunkLoad(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); - }, priority); - return; - } - - final int minLevel = 33 + ChunkSystem.getDistance(toStatus); - final Long chunkReference = addTicket ? Long.valueOf(++chunkLoadCounter) : null; - final ChunkPos chunkPos = new ChunkPos(chunkX, chunkZ); - - if (addTicket) { - level.chunkSource.addTicketAtLevel(CHUNK_LOAD, chunkPos, minLevel, chunkReference); - } - level.chunkSource.runDistanceManagerUpdates(); - - final Consumer loadCallback = (final ChunkAccess chunk) -> { - try { - if (onComplete != null) { - onComplete.accept(chunk); - } - } catch (final ThreadDeath death) { - throw death; - } catch (final Throwable thr) { - LOGGER.error("Exception handling chunk load callback", thr); - SneakyThrow.sneaky(thr); - } finally { - if (addTicket) { - level.chunkSource.addTicketAtLevel(TicketType.UNKNOWN, chunkPos, minLevel, chunkPos); - level.chunkSource.removeTicketAtLevel(CHUNK_LOAD, chunkPos, minLevel, chunkReference); - } - } - }; - - final ChunkHolder holder = level.chunkSource.chunkMap.updatingChunkMap.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); - - if (holder == null || holder.getTicketLevel() > minLevel) { - loadCallback.accept(null); - return; - } - - final CompletableFuture> loadFuture = holder.scheduleChunkGenerationTask(toStatus, level.chunkSource.chunkMap); - - if (loadFuture.isDone()) { - loadCallback.accept(loadFuture.join().orElse(null)); - return; - } - - loadFuture.whenCompleteAsync((final ChunkResult result, final Throwable thr) -> { - if (thr != null) { - loadCallback.accept(null); - return; - } - loadCallback.accept(result.orElse(null)); - }, (final Runnable r) -> { - scheduleChunkTask(level, chunkX, chunkZ, r, PrioritisedExecutor.Priority.HIGHEST); - }); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleChunkLoad(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); // Paper - reroute } public static void scheduleTickingState(final ServerLevel level, final int chunkX, final int chunkZ, final FullChunkStatus toStatus, final boolean addTicket, final PrioritisedExecutor.Priority priority, final Consumer onComplete) { - // This method goes unused until the chunk system rewrite - if (toStatus == FullChunkStatus.INACCESSIBLE) { - throw new IllegalArgumentException("Cannot wait for INACCESSIBLE status"); - } - - if (!Bukkit.isPrimaryThread()) { - scheduleChunkTask(level, chunkX, chunkZ, () -> { - scheduleTickingState(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); - }, priority); - return; - } - - final int minLevel = 33 - (toStatus.ordinal() - 1); - final int radius = toStatus.ordinal() - 1; - final Long chunkReference = addTicket ? Long.valueOf(++chunkLoadCounter) : null; - final ChunkPos chunkPos = new ChunkPos(chunkX, chunkZ); - - if (addTicket) { - level.chunkSource.addTicketAtLevel(CHUNK_LOAD, chunkPos, minLevel, chunkReference); - } - level.chunkSource.runDistanceManagerUpdates(); - - final Consumer loadCallback = (final LevelChunk chunk) -> { - try { - if (onComplete != null) { - onComplete.accept(chunk); - } - } catch (final ThreadDeath death) { - throw death; - } catch (final Throwable thr) { - LOGGER.error("Exception handling chunk load callback", thr); - SneakyThrow.sneaky(thr); - } finally { - if (addTicket) { - level.chunkSource.addTicketAtLevel(TicketType.UNKNOWN, chunkPos, minLevel, chunkPos); - level.chunkSource.removeTicketAtLevel(CHUNK_LOAD, chunkPos, minLevel, chunkReference); - } - } - }; - - final ChunkHolder holder = level.chunkSource.chunkMap.updatingChunkMap.get(CoordinateUtils.getChunkKey(chunkX, chunkZ)); - - if (holder == null || holder.getTicketLevel() > minLevel) { - loadCallback.accept(null); - return; - } - - final CompletableFuture> tickingState; - switch (toStatus) { - case FULL: { - tickingState = holder.getFullChunkFuture(); - break; - } - case BLOCK_TICKING: { - tickingState = holder.getTickingChunkFuture(); - break; - } - case ENTITY_TICKING: { - tickingState = holder.getEntityTickingChunkFuture(); - break; - } - default: { - throw new IllegalStateException("Cannot reach here"); - } - } - - if (tickingState.isDone()) { - loadCallback.accept(tickingState.join().orElse(null)); - return; - } - - tickingState.whenCompleteAsync((final ChunkResult result, final Throwable thr) -> { - if (thr != null) { - loadCallback.accept(null); - return; - } - loadCallback.accept(result.orElse(null)); - }, (final Runnable r) -> { - scheduleChunkTask(level, chunkX, chunkZ, r, PrioritisedExecutor.Priority.HIGHEST); - }); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleTickingState(level, chunkX, chunkZ, toStatus, addTicket, priority, onComplete); // Paper - reroute } public static List getVisibleChunkHolders(final ServerLevel level) { - return new ArrayList<>(level.chunkSource.chunkMap.visibleChunkMap.values()); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getVisibleChunkHolders(level); // Paper - reroute } public static List getUpdatingChunkHolders(final ServerLevel level) { - return new ArrayList<>(level.chunkSource.chunkMap.updatingChunkMap.values()); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getUpdatingChunkHolders(level); // Paper - reroute } public static int getVisibleChunkHolderCount(final ServerLevel level) { - return level.chunkSource.chunkMap.visibleChunkMap.size(); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getVisibleChunkHolderCount(level); // Paper - reroute } public static int getUpdatingChunkHolderCount(final ServerLevel level) { - return level.chunkSource.chunkMap.updatingChunkMap.size(); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getUpdatingChunkHolderCount(level); // Paper - reroute } public static boolean hasAnyChunkHolders(final ServerLevel level) { @@ -274,27 +129,19 @@ public final class ChunkSystem { } public static ChunkHolder getUnloadingChunkHolder(final ServerLevel level, final int chunkX, final int chunkZ) { - return level.chunkSource.chunkMap.getUnloadingChunkHolder(chunkX, chunkZ); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getUnloadingChunkHolder(level, chunkX, chunkZ); // Paper - reroute } public static int getSendViewDistance(final ServerPlayer player) { - return getLoadViewDistance(player); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getSendViewDistance(player); // Paper - reroute } public static int getLoadViewDistance(final ServerPlayer player) { - final ServerLevel level = player.serverLevel(); - if (level == null) { - return Bukkit.getViewDistance(); - } - return level.chunkSource.chunkMap.getPlayerViewDistance(player); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getLoadViewDistance(player); // Paper - reroute } public static int getTickViewDistance(final ServerPlayer player) { - final ServerLevel level = player.serverLevel(); - if (level == null) { - return Bukkit.getSimulationDistance(); - } - return level.chunkSource.chunkMap.distanceManager.simulationDistance; + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getTickViewDistance(player); // Paper - reroute } private ChunkSystem() { diff --git a/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java b/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java index 2a5453707bc172d8d0efe3f11959cb0b5f830984..b8499c1cea97a1a88a53053bc7da132f2fd3928d 100644 --- a/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java +++ b/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java @@ -29,6 +29,45 @@ public class GlobalConfiguration extends ConfigurationPart { public static GlobalConfiguration get() { return instance; } + + public ChunkLoadingBasic chunkLoadingBasic; + + public class ChunkLoadingBasic extends ConfigurationPart { + @Comment("The maximum rate in chunks per second that the server will send to any individual player. Set to -1 to disable this limit.") + public double playerMaxChunkSendRate = 75.0; + + @Comment( + "The maximum rate at which chunks will load for any individual player. " + + "Note that this setting also affects chunk generations, since a chunk load is always first issued to test if a" + + "chunk is already generated. Set to -1 to disable this limit." + ) + public double playerMaxChunkLoadRate = 100.0; + + @Comment("The maximum rate at which chunks will generate for any individual player. Set to -1 to disable this limit.") + public double playerMaxChunkGenerateRate = -1.0; + } + + public ChunkLoadingAdvanced chunkLoadingAdvanced; + + public class ChunkLoadingAdvanced extends ConfigurationPart { + @Comment( + "Set to true if the server will match the chunk send radius that clients have configured" + + "in their view distance settings if the client is less-than the server's send distance." + ) + public boolean autoConfigSendDistance = true; + + @Comment( + "Specifies the maximum amount of concurrent chunk loads that an individual player can have." + + "Set to 0 to let the server configure it automatically per player, or set it to -1 to disable the limit." + ) + public int playerMaxConcurrentChunkLoads = 0; + + @Comment( + "Specifies the maximum amount of concurrent chunk generations that an individual player can have." + + "Set to 0 to let the server configure it automatically per player, or set it to -1 to disable the limit." + ) + public int playerMaxConcurrentChunkGenerates = 0; + } static void set(GlobalConfiguration instance) { GlobalConfiguration.instance = instance; } @@ -130,21 +169,6 @@ public class GlobalConfiguration extends ConfigurationPart { public int incomingPacketThreshold = 300; } - public ChunkLoading chunkLoading; - - public class ChunkLoading extends ConfigurationPart { - public int minLoadRadius = 2; - public int maxConcurrentSends = 2; - public boolean autoconfigSendDistance = true; - public double targetPlayerChunkSendRate = 100.0; - public double globalMaxChunkSendRate = -1.0; - public boolean enableFrustumPriority = false; - public double globalMaxChunkLoadRate = -1.0; - public double playerMaxConcurrentLoads = 20.0; - public double globalMaxConcurrentLoads = 500.0; - public double playerMaxChunkLoadRate = -1.0; - } - public UnsupportedSettings unsupportedSettings; public class UnsupportedSettings extends ConfigurationPart { @@ -203,7 +227,7 @@ public class GlobalConfiguration extends ConfigurationPart { @PostProcess private void postProcess() { - //io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.init(this); + ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.init(this); } } diff --git a/src/main/java/io/papermc/paper/threadedregions/TickRegions.java b/src/main/java/io/papermc/paper/threadedregions/TickRegions.java new file mode 100644 index 0000000000000000000000000000000000000000..9d04285165241baec1005cb3ae81a623bcd3945a --- /dev/null +++ b/src/main/java/io/papermc/paper/threadedregions/TickRegions.java @@ -0,0 +1,10 @@ +package io.papermc.paper.threadedregions; + +// placeholder class for Folia +public class TickRegions { + + public static int getRegionChunkShift() { + return 2; + } + +} diff --git a/src/main/java/io/papermc/paper/util/TickThread.java b/src/main/java/io/papermc/paper/util/TickThread.java index 73e83d56a340f0c7dcb8ff737d621003e72c6de4..d05297d77147ab68f8c5bb08f13a1f882a686c4f 100644 --- a/src/main/java/io/papermc/paper/util/TickThread.java +++ b/src/main/java/io/papermc/paper/util/TickThread.java @@ -6,7 +6,7 @@ import net.minecraft.world.entity.Entity; import org.bukkit.Bukkit; import java.util.concurrent.atomic.AtomicInteger; -public final class TickThread extends Thread { +public class TickThread extends Thread { public static final boolean STRICT_THREAD_CHECKS = Boolean.getBoolean("paper.strict-thread-checks"); @@ -16,6 +16,10 @@ public final class TickThread extends Thread { } } + /** + * @deprecated + */ + @Deprecated public static void softEnsureTickThread(final String reason) { if (!STRICT_THREAD_CHECKS) { return; @@ -23,6 +27,10 @@ public final class TickThread extends Thread { ensureTickThread(reason); } + /** + * @deprecated + */ + @Deprecated public static void ensureTickThread(final String reason) { if (!isTickThread()) { MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); @@ -30,6 +38,21 @@ public final class TickThread extends Thread { } } + public static void ensureTickThread(final ServerLevel world, final net.minecraft.core.BlockPos pos, final String reason) { + if (!isTickThreadFor(world, pos)) { + MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); + throw new IllegalStateException(reason); + } + } + + public static void ensureTickThread(final ServerLevel world, final net.minecraft.world.level.ChunkPos pos, final String reason) { + if (!isTickThreadFor(world, pos)) { + MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); + throw new IllegalStateException(reason); + } + } + + public static void ensureTickThread(final ServerLevel world, final int chunkX, final int chunkZ, final String reason) { if (!isTickThreadFor(world, chunkX, chunkZ)) { MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); @@ -44,6 +67,21 @@ public final class TickThread extends Thread { } } + public static void ensureTickThread(final ServerLevel world, final net.minecraft.world.phys.AABB aabb, final String reason) { + if (!isTickThreadFor(world, aabb)) { + MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); + throw new IllegalStateException(reason); + } + } + + public static void ensureTickThread(final ServerLevel world, final double blockX, final double blockZ, final String reason) { + if (!isTickThreadFor(world, blockX, blockZ)) { + MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); + throw new IllegalStateException(reason); + } + } + + public final int id; /* We don't override getId as the spec requires that it be unique (with respect to all other threads) */ private static final AtomicInteger ID_GENERATOR = new AtomicInteger(); @@ -66,13 +104,45 @@ public final class TickThread extends Thread { } public static boolean isTickThread() { - return Bukkit.isPrimaryThread(); + return Thread.currentThread() instanceof TickThread; + } + + public static boolean isShutdownThread() { + return false; + } + + public static boolean isTickThreadFor(final ServerLevel world, final net.minecraft.core.BlockPos pos) { + return isTickThread(); + } + + public static boolean isTickThreadFor(final ServerLevel world, final net.minecraft.world.level.ChunkPos pos) { + return isTickThread(); + } + + public static boolean isTickThreadFor(final ServerLevel world, final net.minecraft.world.phys.Vec3 pos) { + return isTickThread(); } public static boolean isTickThreadFor(final ServerLevel world, final int chunkX, final int chunkZ) { return isTickThread(); } + public static boolean isTickThreadFor(final ServerLevel world, final net.minecraft.world.phys.AABB aabb) { + return isTickThread(); + } + + public static boolean isTickThreadFor(final ServerLevel world, final double blockX, final double blockZ) { + return isTickThread(); + } + + public static boolean isTickThreadFor(final ServerLevel world, final net.minecraft.world.phys.Vec3 position, final net.minecraft.world.phys.Vec3 deltaMovement, final int buffer) { + return isTickThread(); + } + + public static boolean isTickThreadFor(final ServerLevel world, final int fromChunkX, final int fromChunkZ, final int toChunkX, final int toChunkZ) { + return isTickThread(); + } + public static boolean isTickThreadFor(final ServerLevel world, final int chunkX, final int chunkZ, final int radius) { return isTickThread(); } diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 6915522f669631779c1fb8a8e2db330f4b9fb921..cd69971065b13353353eca55f6e145949390de11 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -198,7 +198,7 @@ import org.bukkit.event.server.ServerLoadEvent; import co.aikar.timings.MinecraftTimings; // Paper -public abstract class MinecraftServer extends ReentrantBlockableEventLoop implements ServerInfo, ChunkIOErrorReporter, CommandSource, AutoCloseable { +public abstract class MinecraftServer extends ReentrantBlockableEventLoop implements ServerInfo, ChunkIOErrorReporter, CommandSource, AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.server.ChunkSystemMinecraftServer { // Paper - rewrite chunk system private static MinecraftServer SERVER; // Paper public static final Logger LOGGER = LogUtils.getLogger(); @@ -322,7 +322,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop S spin(Function serverFactory) { AtomicReference atomicreference = new AtomicReference(); - Thread thread = new Thread(() -> { + Thread thread = new io.papermc.paper.util.TickThread(() -> { // Paper - rewrite chunk system ((MinecraftServer) atomicreference.get()).runServer(); }, "Server thread"); @@ -341,6 +341,15 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop { + while (false && this.levels.values().stream().anyMatch((worldserver1) -> { // Paper - rewrite chunk system return worldserver1.getChunkSource().chunkMap.hasWork(); })) { this.nextTickTimeNanos = Util.getNanos() + TimeUtil.NANOSECONDS_PER_MILLISECOND; @@ -997,19 +1011,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop { return false; } : this::haveTime); + // Paper start - rewrite chunk system + final Throwable crash = this.chunkSystemCrash; + if (crash != null) { + this.chunkSystemCrash = null; + throw new RuntimeException("Chunk system crash propagated to tick()", crash); + } + // Paper end - rewrite chunk system this.profiler.popPush("nextTickWait"); this.mayHaveDelayedTasks = true; this.delayedTasksMaxNextTickTimeNanos = Math.max(Util.getNanos() + i, this.nextTickTimeNanos); diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java index c643bb0daa5cd264fd6ebab7acf0a2bdd7fe7029..0048077dedd19adc6c5a88e7d916d88a71662115 100644 --- a/src/main/java/net/minecraft/server/level/ChunkHolder.java +++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java @@ -32,28 +32,20 @@ import net.minecraft.world.level.lighting.LevelLightEngine; import net.minecraft.server.MinecraftServer; // CraftBukkit end -public class ChunkHolder extends GenerationChunkHolder { +public class ChunkHolder extends GenerationChunkHolder implements ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder { // Paper - rewrite chunk system public static final ChunkResult UNLOADED_LEVEL_CHUNK = ChunkResult.error("Unloaded level chunk"); private static final CompletableFuture> UNLOADED_LEVEL_CHUNK_FUTURE = CompletableFuture.completedFuture(ChunkHolder.UNLOADED_LEVEL_CHUNK); private final LevelHeightAccessor levelHeightAccessor; - private volatile CompletableFuture> fullChunkFuture; private int fullChunkCreateCount; private volatile boolean isFullChunkReady; // Paper - cache chunk ticking stage - private volatile CompletableFuture> tickingChunkFuture; private volatile boolean isTickingReady; // Paper - cache chunk ticking stage - private volatile CompletableFuture> entityTickingChunkFuture; private volatile boolean isEntityTickingReady; // Paper - cache chunk ticking stage - public int oldTicketLevel; - private int ticketLevel; - private int queueLevel; + // Paper - rewrite chunk system private boolean hasChangedSections; private final ShortSet[] changedBlocksPerSection; private final BitSet blockChangedLightSectionFilter; private final BitSet skyChangedLightSectionFilter; private final LevelLightEngine lightEngine; - private final ChunkHolder.LevelChangeListener onLevelChange; + // Paper - rewrite chunk system public final ChunkHolder.PlayerProvider playerProvider; - private boolean wasAccessibleSinceLastSave; - private CompletableFuture pendingFullStateConfirmation; - private CompletableFuture sendSync; - private CompletableFuture saveSync; + // Paper - rewrite chunk system private final ChunkMap chunkMap; // Paper @@ -67,23 +59,110 @@ public class ChunkHolder extends GenerationChunkHolder { } // Paper end + // Paper start - rewrite chunk system + private ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder; + + private static final ServerPlayer[] EMPTY_PLAYER_ARRAY = new ServerPlayer[0]; + private final ca.spottedleaf.moonrise.common.list.ReferenceList playersSentChunkTo = new ca.spottedleaf.moonrise.common.list.ReferenceList<>(EMPTY_PLAYER_ARRAY, 0); + + private ChunkMap getChunkMap() { + return (ChunkMap)this.playerProvider; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder moonrise$getRealChunkHolder() { + return this.newChunkHolder; + } + + @Override + public final void moonrise$setRealChunkHolder(final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder) { + this.newChunkHolder = newChunkHolder; + } + + @Override + public final void moonrise$addReceivedChunk(final ServerPlayer player) { + if (!this.playersSentChunkTo.add(player)) { + throw new IllegalStateException("Already sent chunk " + this.pos + " in world '" + ca.spottedleaf.moonrise.common.util.WorldUtil.getWorldName(this.getChunkMap().level) + "' to player " + player); + } + } + + @Override + public final void moonrise$removeReceivedChunk(final ServerPlayer player) { + if (!this.playersSentChunkTo.remove(player)) { + throw new IllegalStateException("Already sent chunk " + this.pos + " in world '" + ca.spottedleaf.moonrise.common.util.WorldUtil.getWorldName(this.getChunkMap().level) + "' to player " + player); + } + } + + @Override + public final boolean moonrise$hasChunkBeenSent() { + return this.playersSentChunkTo.size() != 0; + } + + @Override + public final boolean moonrise$hasChunkBeenSent(final ServerPlayer to) { + return this.playersSentChunkTo.contains(to); + } + + @Override + public final List moonrise$getPlayers(final boolean onlyOnWatchDistanceEdge) { + final List ret = new java.util.ArrayList<>(); + final ServerPlayer[] raw = this.playersSentChunkTo.getRawDataUnchecked(); + for (int i = 0, len = this.playersSentChunkTo.size(); i < len; ++i) { + final ServerPlayer player = raw[i]; + if (onlyOnWatchDistanceEdge && !((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.getChunkMap().level).moonrise$getPlayerChunkLoader().isChunkSent(player, this.pos.x, this.pos.z, onlyOnWatchDistanceEdge)) { + continue; + } + ret.add(player); + } + + return ret; + } + + @Override + public final LevelChunk moonrise$getFullChunk() { + if (this.newChunkHolder.isFullChunkReady()) { + if (this.newChunkHolder.getCurrentChunk() instanceof LevelChunk levelChunk) { + return levelChunk; + } // else: race condition: chunk unload + } + return null; + } + + private boolean isRadiusLoaded(final int radius) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager manager = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.getChunkMap().level).moonrise$getChunkTaskScheduler() + .chunkHolderManager; + final ChunkPos pos = this.pos; + final int chunkX = pos.x; + final int chunkZ = pos.z; + for (int dz = -radius; dz <= radius; ++dz) { + for (int dx = -radius; dx <= radius; ++dx) { + if ((dx | dz) == 0) { + continue; + } + + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder holder = manager.getChunkHolder(dx + chunkX, dz + chunkZ); + + if (holder == null || !holder.isFullChunkReady()) { + return false; + } + } + } + + return true; + } + // Paper end - rewrite chunk system + public ChunkHolder(ChunkPos pos, int level, LevelHeightAccessor world, LevelLightEngine lightingProvider, ChunkHolder.LevelChangeListener levelUpdateListener, ChunkHolder.PlayerProvider playersWatchingChunkProvider) { super(pos); - this.fullChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; - this.tickingChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; - this.entityTickingChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; + // Paper - rewrite chunk system this.blockChangedLightSectionFilter = new BitSet(); this.skyChangedLightSectionFilter = new BitSet(); - this.pendingFullStateConfirmation = CompletableFuture.completedFuture(null); // CraftBukkit - decompile error - this.sendSync = CompletableFuture.completedFuture(null); // CraftBukkit - decompile error - this.saveSync = CompletableFuture.completedFuture(null); // CraftBukkit - decompile error + // Paper - rewrite chunk system this.levelHeightAccessor = world; this.lightEngine = lightingProvider; - this.onLevelChange = levelUpdateListener; + // Paper - rewrite chunk system this.playerProvider = playersWatchingChunkProvider; - this.oldTicketLevel = ChunkLevel.MAX_LEVEL + 1; - this.ticketLevel = this.oldTicketLevel; - this.queueLevel = this.oldTicketLevel; + // Paper - rewrite chunk system this.setTicketLevel(level); this.changedBlocksPerSection = new ShortSet[world.getSectionsCount()]; this.chunkMap = (ChunkMap)playersWatchingChunkProvider; // Paper @@ -91,21 +170,13 @@ public class ChunkHolder extends GenerationChunkHolder { // Paper start public @Nullable ChunkAccess getAvailableChunkNow() { - // TODO can we just getStatusFuture(EMPTY)? - for (ChunkStatus curr = ChunkStatus.FULL, next = curr.getParent(); curr != next; curr = next, next = next.getParent()) { - ChunkAccess chunkAccess = this.getChunkIfPresentUnchecked(curr); - if (chunkAccess == null) { - continue; - } - return chunkAccess; - } - return null; + return this.getChunkIfPresent(ChunkStatus.EMPTY); // Paper - rewrite chunk system } // Paper end // CraftBukkit start public LevelChunk getFullChunkNow() { // Note: We use the oldTicketLevel for isLoaded checks. - if (!ChunkLevel.fullStatus(this.oldTicketLevel).isOrAfter(FullChunkStatus.FULL)) return null; + if (!ChunkLevel.fullStatus(this.newChunkHolder.oldTicketLevel).isOrAfter(FullChunkStatus.FULL)) return null; // Paper - rewrite chunk system return this.getFullChunkNowUnchecked(); } @@ -115,39 +186,46 @@ public class ChunkHolder extends GenerationChunkHolder { // CraftBukkit end public final CompletableFuture> getTickingChunkFuture() { // Paper - final for inline - return this.tickingChunkFuture; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public final CompletableFuture> getEntityTickingChunkFuture() { // Paper - final for inline - return this.entityTickingChunkFuture; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public final CompletableFuture> getFullChunkFuture() { // Paper - final for inline - return this.fullChunkFuture; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable public final LevelChunk getTickingChunk() { // Paper - final for inline - return (LevelChunk) ((ChunkResult) this.getTickingChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).orElse(null); // CraftBukkit - decompile error + // Paper start - rewrite chunk system + if (this.newChunkHolder.isTickingReady()) { + if (this.newChunkHolder.getCurrentChunk() instanceof LevelChunk levelChunk) { + return levelChunk; + } // else: race condition: chunk unload + } + return null; + // Paper end - rewrite chunk system } @Nullable public LevelChunk getChunkToSend() { - return !this.sendSync.isDone() ? null : this.getTickingChunk(); + // Paper start - rewrite chunk system + final LevelChunk ret = this.moonrise$getFullChunk(); + if (ret != null && this.isRadiusLoaded(1)) { + return ret; + } + return null; + // Paper end - rewrite chunk system } public CompletableFuture getSendSyncFuture() { - return this.sendSync; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void addSendDependency(CompletableFuture postProcessingFuture) { - if (this.sendSync.isDone()) { - this.sendSync = postProcessingFuture; - } else { - this.sendSync = this.sendSync.thenCombine(postProcessingFuture, (object, object1) -> { - return null; - }); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @@ -166,26 +244,20 @@ public class ChunkHolder extends GenerationChunkHolder { // Paper end public CompletableFuture getSaveSyncFuture() { - return this.saveSync; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public boolean isReadyForSaving() { - return this.getGenerationRefCount() == 0 && this.saveSync.isDone(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void addSaveDependency(CompletableFuture savingFuture) { - if (this.saveSync.isDone()) { - this.saveSync = savingFuture; - } else { - this.saveSync = this.saveSync.thenCombine(savingFuture, (object, object1) -> { - return null; - }); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void blockChanged(BlockPos pos) { - LevelChunk chunk = this.getTickingChunk(); + LevelChunk chunk = this.playersSentChunkTo.size() == 0 ? null : this.getChunkToSend(); // Paper - rewrite chunk system if (chunk != null) { int i = this.levelHeightAccessor.getSectionIndex(pos.getY()); @@ -205,7 +277,7 @@ public class ChunkHolder extends GenerationChunkHolder { if (ichunkaccess != null) { ichunkaccess.setUnsaved(true); - LevelChunk chunk = this.getTickingChunk(); + LevelChunk chunk = this.getChunkToSend(); // Paper - rewrite chunk system if (chunk != null) { int j = this.lightEngine.getMinLightSection(); @@ -231,7 +303,7 @@ public class ChunkHolder extends GenerationChunkHolder { List list; if (!this.skyChangedLightSectionFilter.isEmpty() || !this.blockChangedLightSectionFilter.isEmpty()) { - list = this.playerProvider.getPlayers(this.pos, true); + list = this.moonrise$getPlayers(true); // Paper - rewrite chunk system if (!list.isEmpty()) { ClientboundLightUpdatePacket packetplayoutlightupdate = new ClientboundLightUpdatePacket(chunk.getPos(), this.lightEngine, this.skyChangedLightSectionFilter, this.blockChangedLightSectionFilter); @@ -243,7 +315,7 @@ public class ChunkHolder extends GenerationChunkHolder { } if (this.hasChangedSections) { - list = this.playerProvider.getPlayers(this.pos, false); + list = this.moonrise$getPlayers(false); // Paper - rewrite chunk system for (int i = 0; i < this.changedBlocksPerSection.length; ++i) { ShortSet shortset = this.changedBlocksPerSection[i]; @@ -309,193 +381,40 @@ public class ChunkHolder extends GenerationChunkHolder { @Override public final int getTicketLevel() { // Paper - final for inline - return this.ticketLevel; + return this.newChunkHolder.getTicketLevel(); // Paper - rewrite chunk system } @Override public int getQueueLevel() { - return this.queueLevel; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void setQueueLevel(int level) { - this.queueLevel = level; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void setTicketLevel(int level) { - this.ticketLevel = level; + // Paper - rewrite chunk system } private void scheduleFullChunkPromotion(ChunkMap chunkLoadingManager, CompletableFuture> chunkFuture, Executor executor, FullChunkStatus target) { - this.pendingFullStateConfirmation.cancel(false); - CompletableFuture completablefuture1 = new CompletableFuture(); - - completablefuture1.thenRunAsync(() -> { - chunkLoadingManager.onFullChunkStatusChange(this.pos, target); - }, executor); - this.pendingFullStateConfirmation = completablefuture1; - chunkFuture.thenAccept((chunkresult) -> { - chunkresult.ifSuccess((chunk) -> { - completablefuture1.complete(null); // CraftBukkit - decompile error - }); - }); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void demoteFullChunk(ChunkMap chunkLoadingManager, FullChunkStatus target) { - this.pendingFullStateConfirmation.cancel(false); - chunkLoadingManager.onFullChunkStatusChange(this.pos, target); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } protected void updateFutures(ChunkMap chunkLoadingManager, Executor executor) { - FullChunkStatus fullchunkstatus = ChunkLevel.fullStatus(this.oldTicketLevel); - FullChunkStatus fullchunkstatus1 = ChunkLevel.fullStatus(this.ticketLevel); - boolean flag = fullchunkstatus.isOrAfter(FullChunkStatus.FULL); - boolean flag1 = fullchunkstatus1.isOrAfter(FullChunkStatus.FULL); - // CraftBukkit start - // ChunkUnloadEvent: Called before the chunk is unloaded: isChunkLoaded is still true and chunk can still be modified by plugins. - if (flag && !flag1) { - this.getFullChunkFuture().thenAccept((either) -> { - LevelChunk chunk = (LevelChunk) either.orElse(null); - if (chunk != null) { - chunkLoadingManager.callbackExecutor.execute(() -> { - // Minecraft will apply the chunks tick lists to the world once the chunk got loaded, and then store the tick - // lists again inside the chunk once the chunk becomes inaccessible and set the chunk's needsSaving flag. - // These actions may however happen deferred, so we manually set the needsSaving flag already here. - chunk.setUnsaved(true); - chunk.unloadCallback(); - }); - } - }).exceptionally((throwable) -> { - // ensure exceptions are printed, by default this is not the case - MinecraftServer.LOGGER.error("Failed to schedule unload callback for chunk " + ChunkHolder.this.pos, throwable); - return null; - }); - - // Run callback right away if the future was already done - chunkLoadingManager.callbackExecutor.run(); - } - // CraftBukkit end - - this.wasAccessibleSinceLastSave |= flag1; - if (!flag && flag1) { - int expectCreateCount = ++this.fullChunkCreateCount; // Paper - this.fullChunkFuture = chunkLoadingManager.prepareAccessibleChunk(this); - this.scheduleFullChunkPromotion(chunkLoadingManager, this.fullChunkFuture, executor, FullChunkStatus.FULL); - // Paper start - cache ticking ready status - this.fullChunkFuture.thenAccept(chunkResult -> { - chunkResult.ifSuccess(chunk -> { - if (ChunkHolder.this.fullChunkCreateCount == expectCreateCount) { - ChunkHolder.this.isFullChunkReady = true; - io.papermc.paper.chunk.system.ChunkSystem.onChunkBorder(chunk, this); - } - }); - }); - // Paper end - cache ticking ready status - this.addSaveDependency(this.fullChunkFuture); - } - - if (flag && !flag1) { - // Paper start - if (this.isFullChunkReady) { - io.papermc.paper.chunk.system.ChunkSystem.onChunkNotBorder(this.fullChunkFuture.join().orElseThrow(IllegalStateException::new), this); // Paper - } - // Paper end - this.fullChunkFuture.complete(ChunkHolder.UNLOADED_LEVEL_CHUNK); - this.fullChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; - } - - boolean flag2 = fullchunkstatus.isOrAfter(FullChunkStatus.BLOCK_TICKING); - boolean flag3 = fullchunkstatus1.isOrAfter(FullChunkStatus.BLOCK_TICKING); - - if (!flag2 && flag3) { - this.tickingChunkFuture = chunkLoadingManager.prepareTickingChunk(this); - this.scheduleFullChunkPromotion(chunkLoadingManager, this.tickingChunkFuture, executor, FullChunkStatus.BLOCK_TICKING); - // Paper start - cache ticking ready status - this.tickingChunkFuture.thenAccept(chunkResult -> { - chunkResult.ifSuccess(chunk -> { - // note: Here is a very good place to add callbacks to logic waiting on this. - ChunkHolder.this.isTickingReady = true; - io.papermc.paper.chunk.system.ChunkSystem.onChunkTicking(chunk, this); - }); - }); - // Paper end - this.addSaveDependency(this.tickingChunkFuture); - } - - if (flag2 && !flag3) { - // Paper start - if (this.isTickingReady) { - io.papermc.paper.chunk.system.ChunkSystem.onChunkNotTicking(this.tickingChunkFuture.join().orElseThrow(IllegalStateException::new), this); // Paper - } - // Paper end - this.tickingChunkFuture.complete(ChunkHolder.UNLOADED_LEVEL_CHUNK); this.isTickingReady = false; // Paper - cache chunk ticking stage - this.tickingChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; - } - - boolean flag4 = fullchunkstatus.isOrAfter(FullChunkStatus.ENTITY_TICKING); - boolean flag5 = fullchunkstatus1.isOrAfter(FullChunkStatus.ENTITY_TICKING); - - if (!flag4 && flag5) { - if (this.entityTickingChunkFuture != ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE) { - throw (IllegalStateException) Util.pauseInIde(new IllegalStateException()); - } - - this.entityTickingChunkFuture = chunkLoadingManager.prepareEntityTickingChunk(this); - this.scheduleFullChunkPromotion(chunkLoadingManager, this.entityTickingChunkFuture, executor, FullChunkStatus.ENTITY_TICKING); - // Paper start - cache ticking ready status - this.entityTickingChunkFuture.thenAccept(chunkResult -> { - chunkResult.ifSuccess(chunk -> { - ChunkHolder.this.isEntityTickingReady = true; - io.papermc.paper.chunk.system.ChunkSystem.onChunkEntityTicking(chunk, this); - }); - }); - // Paper end - this.addSaveDependency(this.entityTickingChunkFuture); - } - - if (flag4 && !flag5) { - // Paper start - if (this.isEntityTickingReady) { - io.papermc.paper.chunk.system.ChunkSystem.onChunkNotEntityTicking(this.entityTickingChunkFuture.join().orElseThrow(IllegalStateException::new), this); - } - // Paper end - this.entityTickingChunkFuture.complete(ChunkHolder.UNLOADED_LEVEL_CHUNK); this.isEntityTickingReady = false; // Paper - cache chunk ticking stage - this.entityTickingChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; - } - - if (!fullchunkstatus1.isOrAfter(fullchunkstatus)) { - this.demoteFullChunk(chunkLoadingManager, fullchunkstatus1); - } - - this.onLevelChange.onLevelChange(this.pos, this::getQueueLevel, this.ticketLevel, this::setQueueLevel); - this.oldTicketLevel = this.ticketLevel; - // CraftBukkit start - // ChunkLoadEvent: Called after the chunk is loaded: isChunkLoaded returns true and chunk is ready to be modified by plugins. - if (!fullchunkstatus.isOrAfter(FullChunkStatus.FULL) && fullchunkstatus1.isOrAfter(FullChunkStatus.FULL)) { - this.getFullChunkFuture().thenAccept((either) -> { - LevelChunk chunk = (LevelChunk) either.orElse(null); - if (chunk != null) { - chunkLoadingManager.callbackExecutor.execute(() -> { - chunk.loadCallback(); - }); - } - }).exceptionally((throwable) -> { - // ensure exceptions are printed, by default this is not the case - MinecraftServer.LOGGER.error("Failed to schedule load callback for chunk " + ChunkHolder.this.pos, throwable); - return null; - }); - - // Run callback right away if the future was already done - chunkLoadingManager.callbackExecutor.run(); - } - // CraftBukkit end + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public boolean wasAccessibleSinceLastSave() { - return this.wasAccessibleSinceLastSave; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void refreshAccessibility() { - this.wasAccessibleSinceLastSave = ChunkLevel.fullStatus(this.ticketLevel).isOrAfter(FullChunkStatus.FULL); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @FunctionalInterface @@ -511,15 +430,15 @@ public class ChunkHolder extends GenerationChunkHolder { // Paper start public final boolean isEntityTickingReady() { - return this.isEntityTickingReady; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public final boolean isTickingReady() { - return this.isTickingReady; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public final boolean isFullChunkReady() { - return this.isFullChunkReady; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } // Paper end } diff --git a/src/main/java/net/minecraft/server/level/ChunkLevel.java b/src/main/java/net/minecraft/server/level/ChunkLevel.java index d9ad32acdf46a43a649334a3b736aeb7b3af21d1..fae17a075d7efaf24d916877dd5968eb9652bb66 100644 --- a/src/main/java/net/minecraft/server/level/ChunkLevel.java +++ b/src/main/java/net/minecraft/server/level/ChunkLevel.java @@ -7,9 +7,9 @@ import net.minecraft.world.level.chunk.status.ChunkStep; import org.jetbrains.annotations.Contract; public class ChunkLevel { - private static final int FULL_CHUNK_LEVEL = 33; - private static final int BLOCK_TICKING_LEVEL = 32; - private static final int ENTITY_TICKING_LEVEL = 31; + public static final int FULL_CHUNK_LEVEL = 33; + public static final int BLOCK_TICKING_LEVEL = 32; + public static final int ENTITY_TICKING_LEVEL = 31; private static final ChunkStep FULL_CHUNK_STEP = ChunkPyramid.GENERATION_PYRAMID.getStepTo(ChunkStatus.FULL); public static final int RADIUS_AROUND_FULL_CHUNK = FULL_CHUNK_STEP.accumulatedDependencies().getRadius(); public static final int MAX_LEVEL = 33 + RADIUS_AROUND_FULL_CHUNK; diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index 2ce7da9707d7c1a48b5609ae51a516d599d7aee8..b849e0cf15f894aa87b1bb397d85b887b8fb816e 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -122,10 +122,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider public static final int MIN_VIEW_DISTANCE = 2; public static final int MAX_VIEW_DISTANCE = 32; public static final int FORCED_TICKET_LEVEL = ChunkLevel.byStatus(FullChunkStatus.ENTITY_TICKING); - public final Long2ObjectLinkedOpenHashMap updatingChunkMap = new Long2ObjectLinkedOpenHashMap(); - public volatile Long2ObjectLinkedOpenHashMap visibleChunkMap; - private final Long2ObjectLinkedOpenHashMap pendingUnloads; - private final List pendingGenerationTasks; + // Paper - rewrite chunk system public final ServerLevel level; private final ThreadedLevelLightEngine lightEngine; private final BlockableEventLoop mainThreadExecutor; @@ -135,21 +132,19 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider private final PoiManager poiManager; public final LongSet toDrop; private boolean modified; - private final ChunkTaskPriorityQueueSorter queueSorter; - private final ProcessorHandle> worldgenMailbox; - private final ProcessorHandle> mainThreadMailbox; + // Paper - rewrite chunk system public final ChunkProgressListener progressListener; private final ChunkStatusUpdateListener chunkStatusListener; public final ChunkMap.ChunkDistanceManager distanceManager; - private final AtomicInteger tickingGenerated; + public final AtomicInteger tickingGenerated; // Paper - public private final String storageName; private final PlayerMap playerMap; public final Int2ObjectMap entityMap; private final Long2ByteMap chunkTypeCache; private final Long2LongMap chunkSaveCooldowns; - private final Queue unloadQueue; + // Paper - rewrite chunk system public int serverViewDistance; - private final WorldGenContext worldGenContext; + public final WorldGenContext worldGenContext; // Paper - public // CraftBukkit start - recursion-safe executor for Chunk loadCallback() and unloadCallback() public final CallbackExecutor callbackExecutor = new CallbackExecutor(); @@ -223,23 +218,21 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } public final ChunkHolder getUnloadingChunkHolder(int chunkX, int chunkZ) { - return this.pendingUnloads.get(io.papermc.paper.util.CoordinateUtils.getChunkKey(chunkX, chunkZ)); + return null; // Paper - rewrite chunk system } public final io.papermc.paper.util.player.NearbyPlayers nearbyPlayers; // Paper end public ChunkMap(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor executor, BlockableEventLoop mainThreadExecutor, LightChunkGetter chunkProvider, ChunkGenerator chunkGenerator, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier persistentStateManagerFactory, int viewDistance, boolean dsync) { super(new RegionStorageInfo(session.getLevelId(), world.dimension(), "chunk"), session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync); - this.visibleChunkMap = this.updatingChunkMap.clone(); - this.pendingUnloads = new Long2ObjectLinkedOpenHashMap(); - this.pendingGenerationTasks = new ArrayList(); + // Paper - rewrite chunk system this.toDrop = new LongOpenHashSet(); this.tickingGenerated = new AtomicInteger(); this.playerMap = new PlayerMap(); this.entityMap = new Int2ObjectOpenHashMap(); this.chunkTypeCache = new Long2ByteOpenHashMap(); this.chunkSaveCooldowns = new Long2LongOpenHashMap(); - this.unloadQueue = Queues.newConcurrentLinkedQueue(); + // Paper - rewrite chunk system Path path = session.getDimensionPath(world.dimension()); this.storageName = path.getFileName().toString(); @@ -270,15 +263,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.chunkStatusListener = chunkStatusChangeListener; ProcessorMailbox threadedmailbox1 = ProcessorMailbox.create(executor, "light"); - this.queueSorter = new ChunkTaskPriorityQueueSorter(ImmutableList.of(threadedmailbox, mailbox, threadedmailbox1), executor, Integer.MAX_VALUE); - this.worldgenMailbox = this.queueSorter.getProcessor(threadedmailbox, false); - this.mainThreadMailbox = this.queueSorter.getProcessor(mailbox, false); - this.lightEngine = new ThreadedLevelLightEngine(chunkProvider, this, this.level.dimensionType().hasSkyLight(), threadedmailbox1, this.queueSorter.getProcessor(threadedmailbox1, false)); + // Paper - rewrite chunk system + this.lightEngine = new ThreadedLevelLightEngine(chunkProvider, this, this.level.dimensionType().hasSkyLight(), threadedmailbox1, null); // Paper - rewrite chunk system this.distanceManager = new ChunkMap.ChunkDistanceManager(executor, mainThreadExecutor); this.overworldDataStorage = persistentStateManagerFactory; this.poiManager = new PoiManager(new RegionStorageInfo(session.getLevelId(), world.dimension(), "poi"), path.resolve("poi"), dataFixer, dsync, iregistrycustom, world.getServer(), world); this.setServerViewDistance(viewDistance); - this.worldGenContext = new WorldGenContext(world, chunkGenerator, structureTemplateManager, this.lightEngine, this.mainThreadMailbox); + this.worldGenContext = new WorldGenContext(world, chunkGenerator, structureTemplateManager, this.lightEngine, null); // Paper - rewrite chunk system // Paper start this.dataRegionManager = new io.papermc.paper.chunk.SingleThreadChunkRegionManager(this.level, 2, (1.0 / 3.0), 1, 6, "Data", DataRegionData::new, DataRegionSectionData::new); this.regionManagers.add(this.dataRegionManager); @@ -319,23 +310,11 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } boolean isChunkTracked(ServerPlayer player, int chunkX, int chunkZ) { - return player.getChunkTrackingView().contains(chunkX, chunkZ) && !player.connection.chunkSender.isPending(ChunkPos.asLong(chunkX, chunkZ)); + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getPlayerChunkLoader().isChunkSent(player, chunkX, chunkZ); // Paper - rewrite chunk system } private boolean isChunkOnTrackedBorder(ServerPlayer player, int chunkX, int chunkZ) { - if (!this.isChunkTracked(player, chunkX, chunkZ)) { - return false; - } else { - for (int k = -1; k <= 1; ++k) { - for (int l = -1; l <= 1; ++l) { - if ((k != 0 || l != 0) && !this.isChunkTracked(player, chunkX + k, chunkZ + l)) { - return true; - } - } - } - - return false; - } + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getPlayerChunkLoader().isChunkSent(player, chunkX, chunkZ, true); // Paper - rewrite chunk system } protected ThreadedLevelLightEngine getLightEngine() { @@ -344,20 +323,22 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider @Nullable protected ChunkHolder getUpdatingChunkIfPresent(long pos) { - return (ChunkHolder) this.updatingChunkMap.get(pos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder holder = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(pos); + return holder == null ? null : holder.vanillaChunkHolder; + // Paper end - rewrite chunk system } @Nullable public ChunkHolder getVisibleChunkIfPresent(long pos) { - return (ChunkHolder) this.visibleChunkMap.get(pos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder holder = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(pos); + return holder == null ? null : holder.vanillaChunkHolder; + // Paper end - rewrite chunk system } protected IntSupplier getChunkQueueLevel(long pos) { - return () -> { - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(pos); - - return playerchunk == null ? ChunkTaskPriorityQueue.PRIORITY_LEVEL_COUNT - 1 : Math.min(playerchunk.getQueueLevel(), ChunkTaskPriorityQueue.PRIORITY_LEVEL_COUNT - 1); - }; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public String getChunkDebugData(ChunkPos chunkPos) { @@ -386,55 +367,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } private CompletableFuture>> getChunkRangeFuture(ChunkHolder centerChunk, int margin, IntFunction distanceToStatus) { - if (margin == 0) { - ChunkStatus chunkstatus = (ChunkStatus) distanceToStatus.apply(0); - - return centerChunk.scheduleChunkGenerationTask(chunkstatus, this).thenApply((chunkresult) -> { - return chunkresult.map(List::of); - }); - } else { - List>> list = new ArrayList(); - ChunkPos chunkcoordintpair = centerChunk.getPos(); - - for (int j = -margin; j <= margin; ++j) { - for (int k = -margin; k <= margin; ++k) { - int l = Math.max(Math.abs(k), Math.abs(j)); - long i1 = ChunkPos.asLong(chunkcoordintpair.x + k, chunkcoordintpair.z + j); - ChunkHolder playerchunk1 = this.getUpdatingChunkIfPresent(i1); - - if (playerchunk1 == null) { - return ChunkMap.UNLOADED_CHUNK_LIST_FUTURE; - } - - ChunkStatus chunkstatus1 = (ChunkStatus) distanceToStatus.apply(l); - - list.add(playerchunk1.scheduleChunkGenerationTask(chunkstatus1, this)); - } - } - - return Util.sequence(list).thenApply((list1) -> { - List list2 = Lists.newArrayList(); - Iterator iterator = list1.iterator(); - - while (iterator.hasNext()) { - ChunkResult chunkresult = (ChunkResult) iterator.next(); - - if (chunkresult == null) { - throw this.debugFuturesAndCreateReportedException(new IllegalStateException("At least one of the chunk futures were null"), "n/a"); - } - - ChunkAccess ichunkaccess = (ChunkAccess) chunkresult.orElse(null); // CraftBukkit - decompile error - - if (ichunkaccess == null) { - return ChunkMap.UNLOADED_CHUNK_LIST_RESULT; - } - - list2.add(ichunkaccess); - } - - return ChunkResult.of(list2); - }); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public ReportedException debugFuturesAndCreateReportedException(IllegalStateException exception, String details) { @@ -464,93 +397,23 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } public CompletableFuture> prepareEntityTickingChunk(ChunkHolder holder) { - return this.getChunkRangeFuture(holder, 2, (i) -> { - return ChunkStatus.FULL; - }).thenApplyAsync((chunkresult) -> { - return chunkresult.map((list) -> { - return (LevelChunk) list.get(list.size() / 2); - }); - }, this.mainThreadExecutor); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable ChunkHolder updateChunkScheduling(long pos, int level, @Nullable ChunkHolder holder, int k) { - if (!ChunkLevel.isLoaded(k) && !ChunkLevel.isLoaded(level)) { - return holder; - } else { - if (holder != null) { - holder.setTicketLevel(level); - } - - if (holder != null) { - if (!ChunkLevel.isLoaded(level)) { - this.toDrop.add(pos); - } else { - this.toDrop.remove(pos); - } - } - - if (ChunkLevel.isLoaded(level) && holder == null) { - holder = (ChunkHolder) this.pendingUnloads.remove(pos); - if (holder != null) { - holder.setTicketLevel(level); - } else { - holder = new ChunkHolder(new ChunkPos(pos), level, this.level, this.lightEngine, this.queueSorter, this); - // Paper start - io.papermc.paper.chunk.system.ChunkSystem.onChunkHolderCreate(this.level, holder); - // Paper end - } - - // Paper start - holder.onChunkAdd(); - // Paper end - this.updatingChunkMap.put(pos, holder); - this.modified = true; - } - - return holder; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public void close() throws IOException { - try { - this.queueSorter.close(); - this.poiManager.close(); - } finally { - super.close(); - } - + throw new UnsupportedOperationException("Use ServerChunkCache#close"); // Paper - rewrite chunk system } protected void saveAllChunks(boolean flush) { - if (flush) { - List list = io.papermc.paper.chunk.system.ChunkSystem.getVisibleChunkHolders(this.level).stream().filter(ChunkHolder::wasAccessibleSinceLastSave).peek(ChunkHolder::refreshAccessibility).toList(); // Paper - MutableBoolean mutableboolean = new MutableBoolean(); - - do { - mutableboolean.setFalse(); - list.stream().map((playerchunk) -> { - BlockableEventLoop iasynctaskhandler = this.mainThreadExecutor; - - Objects.requireNonNull(playerchunk); - iasynctaskhandler.managedBlock(playerchunk::isReadyForSaving); - return playerchunk.getLatestChunk(); - }).filter((ichunkaccess) -> { - return ichunkaccess instanceof ImposterProtoChunk || ichunkaccess instanceof LevelChunk; - }).filter(this::save).forEach((ichunkaccess) -> { - mutableboolean.setTrue(); - }); - } while (mutableboolean.isTrue()); - - this.processUnloads(() -> { - return true; - }); - this.flushWorker(); - } else { - io.papermc.paper.chunk.system.ChunkSystem.getVisibleChunkHolders(this.level).forEach(this::saveChunkIfNeeded); - } - + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.saveAllChunks( + flush, false, false + ); } protected void tick(BooleanSupplier shouldKeepTicking) { @@ -567,134 +430,25 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } public boolean hasWork() { - return this.lightEngine.hasLightWork() || !this.pendingUnloads.isEmpty() || io.papermc.paper.chunk.system.ChunkSystem.hasAnyChunkHolders(this.level) || this.poiManager.hasWork() || !this.toDrop.isEmpty() || !this.unloadQueue.isEmpty() || this.queueSorter.hasWork() || this.distanceManager.hasTickets(); // Paper + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void processUnloads(BooleanSupplier shouldKeepTicking) { - LongIterator longiterator = this.toDrop.iterator(); - int i = 0; - - while (longiterator.hasNext() && (shouldKeepTicking.getAsBoolean() || i < 200 || this.toDrop.size() > 2000)) { - long j = longiterator.nextLong(); - ChunkHolder playerchunk = (ChunkHolder) this.updatingChunkMap.get(j); - - if (playerchunk != null) { - if (playerchunk.getGenerationRefCount() != 0) { - continue; - } - - this.updatingChunkMap.remove(j); - playerchunk.onChunkRemove(); // Paper - this.pendingUnloads.put(j, playerchunk); - this.modified = true; - ++i; - this.scheduleUnload(j, playerchunk); - } - - longiterator.remove(); - } - - int k = Math.max(0, this.unloadQueue.size() - 2000); - - Runnable runnable; - - while ((shouldKeepTicking.getAsBoolean() || k > 0) && (runnable = (Runnable) this.unloadQueue.poll()) != null) { - --k; - runnable.run(); - } - - int l = 0; - Iterator objectiterator = io.papermc.paper.chunk.system.ChunkSystem.getVisibleChunkHolders(this.level).iterator(); // Paper - - while (l < 20 && shouldKeepTicking.getAsBoolean() && objectiterator.hasNext()) { - if (this.saveChunkIfNeeded((ChunkHolder) objectiterator.next())) { - ++l; - } - } + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.processUnloads(); // Paper - rewrite chunk system + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.autoSave(); // Paper - rewrite chunk system } private void scheduleUnload(long pos, ChunkHolder holder) { - CompletableFuture completablefuture = holder.getSaveSyncFuture(); - Runnable runnable = () -> { - if (!holder.isReadyForSaving()) { - this.scheduleUnload(pos, holder); - } else { - ChunkAccess ichunkaccess = holder.getLatestChunk(); - - // Paper start - boolean removed; - if ((removed = this.pendingUnloads.remove(pos, holder)) && ichunkaccess != null) { - io.papermc.paper.chunk.system.ChunkSystem.onChunkHolderDelete(this.level, holder); - // Paper end - LevelChunk chunk; - - if (ichunkaccess instanceof LevelChunk) { - chunk = (LevelChunk) ichunkaccess; - chunk.setLoaded(false); - } - - this.save(ichunkaccess); - if (ichunkaccess instanceof LevelChunk) { - chunk = (LevelChunk) ichunkaccess; - this.level.unload(chunk); - } - - this.lightEngine.updateChunkStatus(ichunkaccess.getPos()); - this.lightEngine.tryScheduleUpdate(); - this.progressListener.onStatusChange(ichunkaccess.getPos(), (ChunkStatus) null); - this.chunkSaveCooldowns.remove(ichunkaccess.getPos().toLong()); - } else if (removed) { // Paper start - io.papermc.paper.chunk.system.ChunkSystem.onChunkHolderDelete(this.level, holder); - } // Paper end - - } - }; - Queue queue = this.unloadQueue; - - Objects.requireNonNull(this.unloadQueue); - completablefuture.thenRunAsync(runnable, queue::add).whenComplete((ovoid, throwable) -> { - if (throwable != null) { - ChunkMap.LOGGER.error("Failed to save chunk {}", holder.getPos(), throwable); - } - - }); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } protected boolean promoteChunkMap() { - if (!this.modified) { - return false; - } else { - this.visibleChunkMap = this.updatingChunkMap.clone(); - this.modified = false; - return true; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private CompletableFuture scheduleChunkLoad(ChunkPos pos) { - return this.readChunk(pos).thenApply((optional) -> { - return optional.filter((nbttagcompound) -> { - boolean flag = ChunkMap.isChunkDataValid(nbttagcompound); - - if (!flag) { - ChunkMap.LOGGER.error("Chunk file at {} is missing level data, skipping", pos); - } - - return flag; - }); - }).thenApplyAsync((optional) -> { - this.level.getProfiler().incrementCounter("chunkLoad"); - if (optional.isPresent()) { - ProtoChunk protochunk = ChunkSerializer.read(this.level, this.poiManager, this.storageInfo(), pos, (CompoundTag) optional.get()); - - this.markPosition(pos, protochunk.getPersistedStatus().getChunkType()); - return protochunk; - } else { - return this.createEmptyChunk(pos); - } - }, this.mainThreadExecutor).exceptionallyAsync((throwable) -> { - return this.handleChunkLoadFailure(throwable, pos); - }, this.mainThreadExecutor); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private static boolean isChunkDataValid(CompoundTag nbt) { @@ -754,137 +508,44 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider @Override public GenerationChunkHolder acquireGeneration(long pos) { - ChunkHolder playerchunk = (ChunkHolder) this.updatingChunkMap.get(pos); - - playerchunk.increaseGenerationRefCount(); - return playerchunk; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public void releaseGeneration(GenerationChunkHolder chunkHolder) { - chunkHolder.decreaseGenerationRefCount(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public CompletableFuture applyStep(GenerationChunkHolder chunkHolder, ChunkStep step, StaticCache2D chunks) { - ChunkPos chunkcoordintpair = chunkHolder.getPos(); - - if (step.targetStatus() == ChunkStatus.EMPTY) { - return this.scheduleChunkLoad(chunkcoordintpair); - } else { - try { - GenerationChunkHolder generationchunkholder1 = (GenerationChunkHolder) chunks.get(chunkcoordintpair.x, chunkcoordintpair.z); - ChunkAccess ichunkaccess = generationchunkholder1.getChunkIfPresentUnchecked(step.targetStatus().getParent()); - - if (ichunkaccess == null) { - throw new IllegalStateException("Parent chunk missing"); - } else { - CompletableFuture completablefuture = step.apply(this.worldGenContext, chunks, ichunkaccess); - - this.progressListener.onStatusChange(chunkcoordintpair, step.targetStatus()); - return completablefuture; - } - } catch (Exception exception) { - exception.getStackTrace(); - CrashReport crashreport = CrashReport.forThrowable(exception, "Exception generating new chunk"); - CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Chunk to be generated"); - - crashreportsystemdetails.setDetail("Status being generated", () -> { - return step.targetStatus().getName(); - }); - crashreportsystemdetails.setDetail("Location", (Object) String.format(Locale.ROOT, "%d,%d", chunkcoordintpair.x, chunkcoordintpair.z)); - crashreportsystemdetails.setDetail("Position hash", (Object) ChunkPos.asLong(chunkcoordintpair.x, chunkcoordintpair.z)); - crashreportsystemdetails.setDetail("Generator", (Object) this.generator()); - this.mainThreadExecutor.execute(() -> { - throw new ReportedException(crashreport); - }); - throw new ReportedException(crashreport); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public ChunkGenerationTask scheduleGenerationTask(ChunkStatus requestedStatus, ChunkPos pos) { - ChunkGenerationTask chunkgenerationtask = ChunkGenerationTask.create(this, requestedStatus, pos); - - this.pendingGenerationTasks.add(chunkgenerationtask); - return chunkgenerationtask; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void runGenerationTask(ChunkGenerationTask chunkLoader) { - this.worldgenMailbox.tell(ChunkTaskPriorityQueueSorter.message(chunkLoader.getCenter(), () -> { - CompletableFuture completablefuture = chunkLoader.runUntilWait(); - - if (completablefuture != null) { - completablefuture.thenRun(() -> { - this.runGenerationTask(chunkLoader); - }); - } - })); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public void runGenerationTasks() { - this.pendingGenerationTasks.forEach(this::runGenerationTask); - this.pendingGenerationTasks.clear(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public CompletableFuture> prepareTickingChunk(ChunkHolder holder) { - CompletableFuture>> completablefuture = this.getChunkRangeFuture(holder, 1, (i) -> { - return ChunkStatus.FULL; - }); - CompletableFuture> completablefuture1 = completablefuture.thenApplyAsync((chunkresult) -> { - return chunkresult.map((list) -> { - return (LevelChunk) list.get(list.size() / 2); - }); - }, (runnable) -> { - this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, runnable)); - }).thenApplyAsync((chunkresult) -> { - return chunkresult.ifSuccess((chunk) -> { - chunk.postProcessGeneration(); - this.level.startTickingChunk(chunk); - CompletableFuture completablefuture2 = holder.getSendSyncFuture(); - - if (completablefuture2.isDone()) { - this.onChunkReadyToSend(chunk); - } else { - completablefuture2.thenAcceptAsync((object) -> { - this.onChunkReadyToSend(chunk); - }, this.mainThreadExecutor); - } - - }); - }, this.mainThreadExecutor); - - completablefuture1.handle((chunkresult, throwable) -> { - this.tickingGenerated.getAndIncrement(); - return null; - }); - return completablefuture1; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void onChunkReadyToSend(LevelChunk chunk) { - ChunkPos chunkcoordintpair = chunk.getPos(); - Iterator iterator = this.playerMap.getAllPlayers().iterator(); - - while (iterator.hasNext()) { - ServerPlayer entityplayer = (ServerPlayer) iterator.next(); - - if (entityplayer.getChunkTrackingView().contains(chunkcoordintpair)) { - ChunkMap.markChunkPendingToSend(entityplayer, chunk); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public CompletableFuture> prepareAccessibleChunk(ChunkHolder holder) { - return this.getChunkRangeFuture(holder, 1, ChunkLevel::getStatusAroundFullChunk).thenApplyAsync((chunkresult) -> { - return chunkresult.map((list) -> { - return (LevelChunk) list.get(list.size() / 2); - }); - }, (runnable) -> { - this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, runnable)); - }); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public int getTickingGenerated() { @@ -892,135 +553,84 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } private boolean saveChunkIfNeeded(ChunkHolder chunkHolder) { - if (chunkHolder.wasAccessibleSinceLastSave() && chunkHolder.isReadyForSaving()) { - ChunkAccess ichunkaccess = chunkHolder.getLatestChunk(); - - if (!(ichunkaccess instanceof ImposterProtoChunk) && !(ichunkaccess instanceof LevelChunk)) { - return false; - } else { - long i = ichunkaccess.getPos().toLong(); - long j = this.chunkSaveCooldowns.getOrDefault(i, -1L); - long k = System.currentTimeMillis(); - - if (k < j) { - return false; - } else { - boolean flag = this.save(ichunkaccess); - - chunkHolder.refreshAccessibility(); - if (flag) { - this.chunkSaveCooldowns.put(i, k + 10000L); - } - - return flag; - } - } - } else { - return false; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public boolean save(ChunkAccess chunk) { - this.poiManager.flush(chunk.getPos()); - if (!chunk.isUnsaved()) { - return false; - } else { - chunk.setUnsaved(false); - ChunkPos chunkcoordintpair = chunk.getPos(); - - try { - ChunkStatus chunkstatus = chunk.getPersistedStatus(); - - if (chunkstatus.getChunkType() != ChunkType.LEVELCHUNK) { - if (this.isExistingChunkFull(chunkcoordintpair)) { - return false; - } - - if (chunkstatus == ChunkStatus.EMPTY && chunk.getAllStarts().values().stream().noneMatch(StructureStart::isValid)) { - return false; - } - } - - this.level.getProfiler().incrementCounter("chunkSave"); - CompoundTag nbttagcompound = ChunkSerializer.write(this.level, chunk); - - this.write(chunkcoordintpair, nbttagcompound).exceptionally((throwable) -> { - this.level.getServer().reportChunkSaveFailure(throwable, this.storageInfo(), chunkcoordintpair); - return null; - }); - this.markPosition(chunkcoordintpair, chunkstatus.getChunkType()); - return true; - } catch (Exception exception) { - this.level.getServer().reportChunkSaveFailure(exception, this.storageInfo(), chunkcoordintpair); - return false; - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private boolean isExistingChunkFull(ChunkPos pos) { - byte b0 = this.chunkTypeCache.get(pos.toLong()); - - if (b0 != 0) { - return b0 == 1; - } else { - CompoundTag nbttagcompound; - - try { - nbttagcompound = (CompoundTag) ((Optional) this.readChunk(pos).join()).orElse((Object) null); - if (nbttagcompound == null) { - this.markPositionReplaceable(pos); - return false; - } - } catch (Exception exception) { - ChunkMap.LOGGER.error("Failed to read chunk {}", pos, exception); - this.markPositionReplaceable(pos); - return false; - } - - ChunkType chunktype = ChunkSerializer.getChunkTypeFromTag(nbttagcompound); - - return this.markPosition(pos, chunktype) == 1; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void setServerViewDistance(int watchDistance) { // Paper - public - int j = Mth.clamp(watchDistance, 2, 32); - - if (j != this.serverViewDistance) { - this.serverViewDistance = j; - this.distanceManager.updatePlayerTickets(this.serverViewDistance); - Iterator iterator = this.playerMap.getAllPlayers().iterator(); - - while (iterator.hasNext()) { - ServerPlayer entityplayer = (ServerPlayer) iterator.next(); - - this.updateChunkTracking(entityplayer); - } + // Paper start - rewrite chunk system + final int clamped = Mth.clamp(watchDistance, 2, ca.spottedleaf.moonrise.common.util.MoonriseConstants.MAX_VIEW_DISTANCE); + if (clamped == this.serverViewDistance) { + return; } + this.serverViewDistance = clamped; + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getPlayerChunkLoader().setLoadDistance(this.serverViewDistance + 1); + // Paper end - rewrite chunk system } public int getPlayerViewDistance(ServerPlayer player) { // Paper - public - return Mth.clamp(player.requestedViewDistance(), 2, this.serverViewDistance); + return ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.getSendViewDistance(player); // Paper - rewrite chunk system } private void markChunkPendingToSend(ServerPlayer player, ChunkPos pos) { - LevelChunk chunk = this.getChunkToSend(pos.toLong()); - - if (chunk != null) { - ChunkMap.markChunkPendingToSend(player, chunk); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private static void markChunkPendingToSend(ServerPlayer player, LevelChunk chunk) { - player.connection.chunkSender.markChunkPendingToSend(chunk); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private static void dropChunk(ServerPlayer player, ChunkPos pos) { - player.connection.chunkSender.dropChunk(player, pos); + // Paper - rewrite chunk system + } + + // Paper start - rewrite chunk system + @Override + public CompletableFuture> read(final ChunkPos pos) { + if (!ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.isRegionFileThread()) { + try { + return CompletableFuture.completedFuture( + Optional.ofNullable( + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.loadData( + this.level, pos.x, pos.z, ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.RegionFileType.CHUNK_DATA, + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.getIOBlockingPriorityForCurrentThread() + ) + ) + ); + } catch (final Throwable thr) { + return CompletableFuture.failedFuture(thr); + } + } + return super.read(pos); } + @Override + public CompletableFuture write(final ChunkPos pos, final CompoundTag tag) { + if (!ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.isRegionFileThread()) { + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.scheduleSave( + this.level, pos.x, pos.z, tag, + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.RegionFileType.CHUNK_DATA); + return null; + } + super.write(pos, tag); + return null; + } + + @Override + public void flushWorker() { + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.flush(); + } + // Paper end - rewrite chunk system + @Nullable public LevelChunk getChunkToSend(long pos) { ChunkHolder playerchunk = this.getVisibleChunkIfPresent(pos); @@ -1086,7 +696,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } // CraftBukkit start - private CompoundTag upgradeChunkTag(CompoundTag nbttagcompound, ChunkPos chunkcoordintpair) { + public CompoundTag upgradeChunkTag(CompoundTag nbttagcompound, ChunkPos chunkcoordintpair) { // Paper - public return this.upgradeChunkTag(this.level.getTypeKey(), this.overworldDataStorage, nbttagcompound, this.generator().getTypeNameForDataFixer(), chunkcoordintpair, this.level); // CraftBukkit end } @@ -1180,7 +790,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } player.setChunkTrackingView(ChunkTrackingView.EMPTY); - this.updateChunkTracking(player); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.addPlayerToDistanceMaps(this.level, player); // Paper - rewrite chunk system this.addPlayerToDistanceMaps(player); // Paper - distance maps } else { SectionPos sectionposition = player.getLastSectionPos(); @@ -1191,7 +801,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } this.removePlayerFromDistanceMaps(player); // Paper - distance maps - this.applyChunkTrackingView(player, ChunkTrackingView.EMPTY); + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.removePlayerFromDistanceMaps(this.level, player); // Paper - rewrite chunk system } } @@ -1239,71 +849,31 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.playerMap.unIgnorePlayer(player); } - this.updateChunkTracking(player); + // Paper - rewrite chunk system } this.updateMaps(player); // Paper - distance maps + ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.updateMaps(this.level, player); // Paper - rewrite chunk system } private void updateChunkTracking(ServerPlayer player) { - ChunkPos chunkcoordintpair = player.chunkPosition(); - int i = this.getPlayerViewDistance(player); - ChunkTrackingView chunktrackingview = player.getChunkTrackingView(); - - if (chunktrackingview instanceof ChunkTrackingView.Positioned chunktrackingview_a) { - if (chunktrackingview_a.center().equals(chunkcoordintpair) && chunktrackingview_a.viewDistance() == i) { - return; - } - } - - this.applyChunkTrackingView(player, ChunkTrackingView.of(chunkcoordintpair, i)); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void applyChunkTrackingView(ServerPlayer player, ChunkTrackingView chunkFilter) { - if (player.level() == this.level) { - ChunkTrackingView chunktrackingview1 = player.getChunkTrackingView(); - - if (chunkFilter instanceof ChunkTrackingView.Positioned) { - label15: - { - ChunkTrackingView.Positioned chunktrackingview_a = (ChunkTrackingView.Positioned) chunkFilter; - - if (chunktrackingview1 instanceof ChunkTrackingView.Positioned) { - ChunkTrackingView.Positioned chunktrackingview_a1 = (ChunkTrackingView.Positioned) chunktrackingview1; - - if (chunktrackingview_a1.center().equals(chunktrackingview_a.center())) { - break label15; - } - } - - player.connection.send(new ClientboundSetChunkCacheCenterPacket(chunktrackingview_a.center().x, chunktrackingview_a.center().z)); - } - } - - ChunkTrackingView.difference(chunktrackingview1, chunkFilter, (chunkcoordintpair) -> { - this.markChunkPendingToSend(player, chunkcoordintpair); - }, (chunkcoordintpair) -> { - ChunkMap.dropChunk(player, chunkcoordintpair); - }); - player.setChunkTrackingView(chunkFilter); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public List getPlayers(ChunkPos chunkPos, boolean onlyOnWatchDistanceEdge) { - Set set = this.playerMap.getAllPlayers(); - Builder builder = ImmutableList.builder(); - Iterator iterator = set.iterator(); - - while (iterator.hasNext()) { - ServerPlayer entityplayer = (ServerPlayer) iterator.next(); - - if (onlyOnWatchDistanceEdge && this.isChunkOnTrackedBorder(entityplayer, chunkPos.x, chunkPos.z) || !onlyOnWatchDistanceEdge && this.isChunkTracked(entityplayer, chunkPos.x, chunkPos.z)) { - builder.add(entityplayer); - } + // Paper start - rewrite chunk system + final ChunkHolder holder = this.getVisibleChunkIfPresent(chunkPos.toLong()); + if (holder == null) { + return new ArrayList<>(); + } else { + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)holder).moonrise$getPlayers(onlyOnWatchDistanceEdge); } - - return builder.build(); + // Paper end - rewrite chunk system } public void addEntity(Entity entity) { @@ -1374,13 +944,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } protected void tick() { - Iterator iterator = this.playerMap.getAllPlayers().iterator(); - - while (iterator.hasNext()) { - ServerPlayer entityplayer = (ServerPlayer) iterator.next(); - - this.updateChunkTracking(entityplayer); - } + // Paper - rewrite chunk system List list = Lists.newArrayList(); List list1 = this.level.players(); @@ -1487,27 +1051,25 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } public void waitForLightBeforeSending(ChunkPos centerPos, int radius) { - int j = radius + 1; - - ChunkPos.rangeClosed(centerPos, j).forEach((chunkcoordintpair1) -> { - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(chunkcoordintpair1.toLong()); - - if (playerchunk != null) { - playerchunk.addSendDependency(this.lightEngine.waitForPendingTasks(chunkcoordintpair1.x, chunkcoordintpair1.z)); - } - - }); + // Paper - rewrite chunk system } - public class ChunkDistanceManager extends DistanceManager { // Paper - public + public class ChunkDistanceManager extends DistanceManager implements ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemDistanceManager { // Paper - public // Paper - rewrite chunk system protected ChunkDistanceManager(final Executor workerExecutor, final Executor mainThreadExecutor) { super(workerExecutor, mainThreadExecutor, ChunkMap.this); // Paper } + // Paper start - rewrite chunk system + @Override + public final ChunkMap moonrise$getChunkMap() { + return ChunkMap.this; + } + // Paper end - rewrite chunk system + @Override protected boolean isChunkToRemove(long pos) { - return ChunkMap.this.toDrop.contains(pos); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java index cbabbfbb9967ddf9a56f3be24a88e0fcd4415aa2..71abe25cfb73af3857cbc85980aa32d0201aab62 100644 --- a/src/main/java/net/minecraft/server/level/DistanceManager.java +++ b/src/main/java/net/minecraft/server/level/DistanceManager.java @@ -36,66 +36,36 @@ import net.minecraft.world.level.ChunkPos; import net.minecraft.world.level.chunk.LevelChunk; import org.slf4j.Logger; -public abstract class DistanceManager { +public abstract class DistanceManager implements ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemDistanceManager { // Paper - rewrite chunk system static final Logger LOGGER = LogUtils.getLogger(); static final int PLAYER_TICKET_LEVEL = ChunkLevel.byStatus(FullChunkStatus.ENTITY_TICKING); private static final int INITIAL_TICKET_LIST_CAPACITY = 4; final Long2ObjectMap> playersPerChunk = new Long2ObjectOpenHashMap(); - public final Long2ObjectOpenHashMap>> tickets = new Long2ObjectOpenHashMap(); - private final DistanceManager.ChunkTicketTracker ticketTracker = new DistanceManager.ChunkTicketTracker(); + // Paper - rewrite chunk system private final DistanceManager.FixedPlayerDistanceChunkTracker naturalSpawnChunkCounter = new DistanceManager.FixedPlayerDistanceChunkTracker(8); - private final TickingTracker tickingTicketsTracker = new TickingTracker(); - private final DistanceManager.PlayerTicketTracker playerTicketManager = new DistanceManager.PlayerTicketTracker(32); - final Set chunksToUpdateFutures = Sets.newHashSet(); - final ChunkTaskPriorityQueueSorter ticketThrottler; - final ProcessorHandle> ticketThrottlerInput; - final ProcessorHandle ticketThrottlerReleaser; - final LongSet ticketsToRelease = new LongOpenHashSet(); - final Executor mainThreadExecutor; + // Paper - rewrite chunk system private long ticketTickCounter; - public int simulationDistance = 10; + // Paper - rewrite chunk system private final ChunkMap chunkMap; // Paper + // Paper start - rewrite chunk system + public ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager getChunkHolderManager() { + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.moonrise$getChunkMap().level).moonrise$getChunkTaskScheduler().chunkHolderManager; + } + // Paper end - rewrite chunk system + protected DistanceManager(Executor workerExecutor, Executor mainThreadExecutor, ChunkMap chunkMap) { Objects.requireNonNull(mainThreadExecutor); ProcessorHandle mailbox = ProcessorHandle.of("player ticket throttler", mainThreadExecutor::execute); ChunkTaskPriorityQueueSorter chunktaskqueuesorter = new ChunkTaskPriorityQueueSorter(ImmutableList.of(mailbox), workerExecutor, 4); - this.ticketThrottler = chunktaskqueuesorter; - this.ticketThrottlerInput = chunktaskqueuesorter.getProcessor(mailbox, true); - this.ticketThrottlerReleaser = chunktaskqueuesorter.getReleaseProcessor(mailbox); - this.mainThreadExecutor = mainThreadExecutor; + // Paper - rewrite chunk system this.chunkMap = chunkMap; // Paper } protected void purgeStaleTickets() { - ++this.ticketTickCounter; - ObjectIterator>>> objectiterator = this.tickets.long2ObjectEntrySet().fastIterator(); - - while (objectiterator.hasNext()) { - Entry>> entry = (Entry) objectiterator.next(); - Iterator> iterator = ((SortedArraySet) entry.getValue()).iterator(); - boolean flag = false; - - while (iterator.hasNext()) { - Ticket ticket = (Ticket) iterator.next(); - - if (ticket.timedOut(this.ticketTickCounter)) { - iterator.remove(); - flag = true; - this.tickingTicketsTracker.removeTicket(entry.getLongKey(), ticket); - } - } - - if (flag) { - this.ticketTracker.update(entry.getLongKey(), DistanceManager.getTicketLevelAt((SortedArraySet) entry.getValue()), false); - } - - if (((SortedArraySet) entry.getValue()).isEmpty()) { - objectiterator.remove(); - } - } + this.getChunkHolderManager().tick(); // Paper - rewrite chunk system } @@ -112,86 +82,15 @@ public abstract class DistanceManager { protected abstract ChunkHolder updateChunkScheduling(long pos, int level, @Nullable ChunkHolder holder, int k); public boolean runAllUpdates(ChunkMap chunkLoadingManager) { - this.naturalSpawnChunkCounter.runAllUpdates(); - this.tickingTicketsTracker.runAllUpdates(); - this.playerTicketManager.runAllUpdates(); - int i = Integer.MAX_VALUE - this.ticketTracker.runDistanceUpdates(Integer.MAX_VALUE); - boolean flag = i != 0; - - if (flag) { - ; - } - - if (!this.chunksToUpdateFutures.isEmpty()) { - this.chunksToUpdateFutures.forEach((playerchunk) -> { - playerchunk.updateHighestAllowedStatus(chunkLoadingManager); - }); - this.chunksToUpdateFutures.forEach((playerchunk) -> { - playerchunk.updateFutures(chunkLoadingManager, this.mainThreadExecutor); - }); - this.chunksToUpdateFutures.clear(); - return true; - } else { - if (!this.ticketsToRelease.isEmpty()) { - LongIterator longiterator = this.ticketsToRelease.iterator(); - - while (longiterator.hasNext()) { - long j = longiterator.nextLong(); - - if (this.getTickets(j).stream().anyMatch((ticket) -> { - return ticket.getType() == TicketType.PLAYER; - })) { - ChunkHolder playerchunk = chunkLoadingManager.getUpdatingChunkIfPresent(j); - - if (playerchunk == null) { - throw new IllegalStateException(); - } - - CompletableFuture> completablefuture = playerchunk.getEntityTickingChunkFuture(); - - completablefuture.thenAccept((chunkresult) -> { - this.mainThreadExecutor.execute(() -> { - this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> { - }, j, false)); - }); - }); - } - } - - this.ticketsToRelease.clear(); - } - - return flag; - } + return this.getChunkHolderManager().processTicketUpdates(); // Paper - rewrite chunk system } boolean addTicket(long i, Ticket ticket) { // CraftBukkit - void -> boolean - SortedArraySet> arraysetsorted = this.getTickets(i); - int j = DistanceManager.getTicketLevelAt(arraysetsorted); - Ticket ticket1 = (Ticket) arraysetsorted.addOrGet(ticket); - - ticket1.setCreatedTick(this.ticketTickCounter); - if (ticket.getTicketLevel() < j) { - this.ticketTracker.update(i, ticket.getTicketLevel(), true); - } - - return ticket == ticket1; // CraftBukkit + return this.getChunkHolderManager().addTicketAtLevel((TicketType)ticket.getType(), i, ticket.getTicketLevel(), ticket.key); // Paper - rewrite chunk system } boolean removeTicket(long i, Ticket ticket) { // CraftBukkit - void -> boolean - SortedArraySet> arraysetsorted = this.getTickets(i); - - boolean removed = false; // CraftBukkit - if (arraysetsorted.remove(ticket)) { - removed = true; // CraftBukkit - } - - if (arraysetsorted.isEmpty()) { - this.tickets.remove(i); - } - - this.ticketTracker.update(i, DistanceManager.getTicketLevelAt(arraysetsorted), false); - return removed; // CraftBukkit + return this.getChunkHolderManager().removeTicketAtLevel((TicketType)ticket.getType(), i, ticket.getTicketLevel(), ticket.key); // Paper - rewrite chunk system } public void addTicket(TicketType type, ChunkPos pos, int level, T argument) { @@ -210,13 +109,7 @@ public abstract class DistanceManager { } public boolean addRegionTicketAtDistance(TicketType tickettype, ChunkPos chunkcoordintpair, int i, T t0) { - // CraftBukkit end - Ticket ticket = new Ticket<>(tickettype, ChunkLevel.byStatus(FullChunkStatus.FULL) - i, t0); - long j = chunkcoordintpair.toLong(); - - boolean added = this.addTicket(j, ticket); // CraftBukkit - this.tickingTicketsTracker.addTicket(j, ticket); - return added; // CraftBukkit + return this.getChunkHolderManager().addTicketAtLevel(tickettype, chunkcoordintpair, ChunkLevel.byStatus(FullChunkStatus.FULL) - i, t0); // Paper - rewrite chunk system } public void removeRegionTicket(TicketType type, ChunkPos pos, int radius, T argument) { @@ -225,32 +118,21 @@ public abstract class DistanceManager { } public boolean removeRegionTicketAtDistance(TicketType tickettype, ChunkPos chunkcoordintpair, int i, T t0) { - // CraftBukkit end - Ticket ticket = new Ticket<>(tickettype, ChunkLevel.byStatus(FullChunkStatus.FULL) - i, t0); - long j = chunkcoordintpair.toLong(); - - boolean removed = this.removeTicket(j, ticket); // CraftBukkit - this.tickingTicketsTracker.removeTicket(j, ticket); - return removed; // CraftBukkit + return this.getChunkHolderManager().removeTicketAtLevel(tickettype, chunkcoordintpair, ChunkLevel.byStatus(FullChunkStatus.FULL) - i, t0); // Paper - rewrite chunk system } private SortedArraySet> getTickets(long position) { - return (SortedArraySet) this.tickets.computeIfAbsent(position, (j) -> { - return SortedArraySet.create(4); - }); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } protected void updateChunkForced(ChunkPos pos, boolean forced) { - Ticket ticket = new Ticket<>(TicketType.FORCED, ChunkMap.FORCED_TICKET_LEVEL, pos); - long i = pos.toLong(); - + // Paper start - rewrite chunk system if (forced) { - this.addTicket(i, ticket); - this.tickingTicketsTracker.addTicket(i, ticket); + this.getChunkHolderManager().addTicketAtLevel(TicketType.FORCED, pos, ChunkMap.FORCED_TICKET_LEVEL, pos); } else { - this.removeTicket(i, ticket); - this.tickingTicketsTracker.removeTicket(i, ticket); + this.getChunkHolderManager().removeTicketAtLevel(TicketType.FORCED, pos, ChunkMap.FORCED_TICKET_LEVEL, pos); } + // Paper end - rewrite chunk system } @@ -262,8 +144,7 @@ public abstract class DistanceManager { return new ObjectOpenHashSet(); })).add(player); this.naturalSpawnChunkCounter.update(i, 0, true); - this.playerTicketManager.update(i, 0, true); - this.tickingTicketsTracker.addTicket(TicketType.PLAYER, chunkcoordintpair, this.getPlayerTicketLevel(), chunkcoordintpair); + // Paper - rewrite chunk system } public void removePlayer(SectionPos pos, ServerPlayer player) { @@ -276,39 +157,39 @@ public abstract class DistanceManager { if (objectset == null || objectset.isEmpty()) { // Paper this.playersPerChunk.remove(i); this.naturalSpawnChunkCounter.update(i, Integer.MAX_VALUE, false); - this.playerTicketManager.update(i, Integer.MAX_VALUE, false); - this.tickingTicketsTracker.removeTicket(TicketType.PLAYER, chunkcoordintpair, this.getPlayerTicketLevel(), chunkcoordintpair); + // Paper - rewrite chunk system } } private int getPlayerTicketLevel() { - return Math.max(0, ChunkLevel.byStatus(FullChunkStatus.ENTITY_TICKING) - this.simulationDistance); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public boolean inEntityTickingRange(long chunkPos) { - return ChunkLevel.isEntityTicking(this.tickingTicketsTracker.getLevel(chunkPos)); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.getChunkHolderManager().getChunkHolder(chunkPos); + return chunkHolder != null && chunkHolder.isEntityTickingReady(); + // Paper end - rewrite chunk system } public boolean inBlockTickingRange(long chunkPos) { - return ChunkLevel.isBlockTicking(this.tickingTicketsTracker.getLevel(chunkPos)); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.getChunkHolderManager().getChunkHolder(chunkPos); + return chunkHolder != null && chunkHolder.isTickingReady(); + // Paper end - rewrite chunk system } protected String getTicketDebugString(long pos) { - SortedArraySet> arraysetsorted = (SortedArraySet) this.tickets.get(pos); - - return arraysetsorted != null && !arraysetsorted.isEmpty() ? ((Ticket) arraysetsorted.first()).toString() : "no_ticket"; + return this.getChunkHolderManager().getTicketDebugString(pos); // Paper - rewrite chunk system } protected void updatePlayerTickets(int viewDistance) { - this.playerTicketManager.updateViewDistance(viewDistance); + this.moonrise$getChunkMap().setServerViewDistance(viewDistance); // Paper - rewrite chunk system } public void updateSimulationDistance(int simulationDistance) { - if (simulationDistance != this.simulationDistance) { - this.simulationDistance = simulationDistance; - this.tickingTicketsTracker.replacePlayerTicketsLevel(this.getPlayerTicketLevel()); - } + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.moonrise$getChunkMap().level).moonrise$getPlayerChunkLoader().setTickDistance(simulationDistance); // Paper - rewrite chunk system } @@ -323,103 +204,35 @@ public abstract class DistanceManager { } public String getDebugStatus() { - return this.ticketThrottler.getDebugStatus(); + return "No DistanceManager stats available"; // Paper - rewrite chunk system } private void dumpTickets(String path) { - try { - FileOutputStream fileoutputstream = new FileOutputStream(new File(path)); - - try { - ObjectIterator objectiterator = this.tickets.long2ObjectEntrySet().iterator(); - - while (objectiterator.hasNext()) { - Entry>> entry = (Entry) objectiterator.next(); - ChunkPos chunkcoordintpair = new ChunkPos(entry.getLongKey()); - Iterator iterator = ((SortedArraySet) entry.getValue()).iterator(); - - while (iterator.hasNext()) { - Ticket ticket = (Ticket) iterator.next(); - - fileoutputstream.write((chunkcoordintpair.x + "\t" + chunkcoordintpair.z + "\t" + String.valueOf(ticket.getType()) + "\t" + ticket.getTicketLevel() + "\t\n").getBytes(StandardCharsets.UTF_8)); - } - } - } catch (Throwable throwable) { - try { - fileoutputstream.close(); - } catch (Throwable throwable1) { - throwable.addSuppressed(throwable1); - } - - throw throwable; - } - - fileoutputstream.close(); - } catch (IOException ioexception) { - DistanceManager.LOGGER.error("Failed to dump tickets to {}", path, ioexception); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @VisibleForTesting TickingTracker tickingTracker() { - return this.tickingTicketsTracker; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void removeTicketsOnClosing() { - ImmutableSet> immutableset = ImmutableSet.of(TicketType.UNKNOWN, TicketType.POST_TELEPORT, TicketType.FUTURE_AWAIT); // Paper - add additional tickets to preserve - ObjectIterator>>> objectiterator = this.tickets.long2ObjectEntrySet().fastIterator(); - - while (objectiterator.hasNext()) { - Entry>> entry = (Entry) objectiterator.next(); - Iterator> iterator = ((SortedArraySet) entry.getValue()).iterator(); - boolean flag = false; - - while (iterator.hasNext()) { - Ticket ticket = (Ticket) iterator.next(); - - if (!immutableset.contains(ticket.getType())) { - iterator.remove(); - flag = true; - this.tickingTicketsTracker.removeTicket(entry.getLongKey(), ticket); - } - } - - if (flag) { - this.ticketTracker.update(entry.getLongKey(), DistanceManager.getTicketLevelAt((SortedArraySet) entry.getValue()), false); - } - - if (((SortedArraySet) entry.getValue()).isEmpty()) { - objectiterator.remove(); - } - } + // Paper - rewrite chunk system } public boolean hasTickets() { - return !this.tickets.isEmpty(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } // CraftBukkit start public void removeAllTicketsFor(TicketType ticketType, int ticketLevel, T ticketIdentifier) { - Ticket target = new Ticket<>(ticketType, ticketLevel, ticketIdentifier); - - for (java.util.Iterator>>> iterator = this.tickets.long2ObjectEntrySet().fastIterator(); iterator.hasNext();) { - Entry>> entry = iterator.next(); - SortedArraySet> tickets = entry.getValue(); - if (tickets.remove(target)) { - // copied from removeTicket - this.ticketTracker.update(entry.getLongKey(), DistanceManager.getTicketLevelAt(tickets), false); - - // can't use entry after it's removed - if (tickets.isEmpty()) { - iterator.remove(); - } - } - } + this.getChunkHolderManager().removeAllTicketsFor(ticketType, ticketLevel, ticketIdentifier); // Paper - rewrite chunk system } // CraftBukkit end + /* // Paper - rewrite chunk system private class ChunkTicketTracker extends ChunkTracker { private static final int MAX_LEVEL = ChunkLevel.MAX_LEVEL + 1; @@ -465,7 +278,7 @@ public abstract class DistanceManager { public int runDistanceUpdates(int distance) { return this.runUpdates(distance); } - } + }*/ // Paper - rewrite chunk system private class FixedPlayerDistanceChunkTracker extends ChunkTracker { @@ -545,6 +358,7 @@ public abstract class DistanceManager { } } + /* // Paper - rewrite chunk system private class PlayerTicketTracker extends DistanceManager.FixedPlayerDistanceChunkTracker { private int viewDistance = 0; @@ -639,5 +453,5 @@ public abstract class DistanceManager { private boolean haveTicketFor(int distance) { return distance <= this.viewDistance; } - } + }*/ // Paper - rewrite chunk system } diff --git a/src/main/java/net/minecraft/server/level/GenerationChunkHolder.java b/src/main/java/net/minecraft/server/level/GenerationChunkHolder.java index 3dc1daa3c6a04d3ff1a2353773b465fc380994a2..3575782f13a7f3c52e64dc5046803305d5c8ce12 100644 --- a/src/main/java/net/minecraft/server/level/GenerationChunkHolder.java +++ b/src/main/java/net/minecraft/server/level/GenerationChunkHolder.java @@ -27,249 +27,105 @@ public abstract class GenerationChunkHolder { public static final ChunkResult UNLOADED_CHUNK = ChunkResult.error("Unloaded chunk"); public static final CompletableFuture> UNLOADED_CHUNK_FUTURE = CompletableFuture.completedFuture(UNLOADED_CHUNK); protected final ChunkPos pos; - @Nullable - private volatile ChunkStatus highestAllowedStatus; - private final AtomicReference startedWork = new AtomicReference<>(); - private final AtomicReferenceArray>> futures = new AtomicReferenceArray<>(CHUNK_STATUSES.size()); - private final AtomicReference task = new AtomicReference<>(); - private final AtomicInteger generationRefCount = new AtomicInteger(); + // Paper - rewrite chunk system public GenerationChunkHolder(ChunkPos pos) { this.pos = pos; } public CompletableFuture> scheduleChunkGenerationTask(ChunkStatus requestedStatus, ChunkMap chunkLoadingManager) { - if (this.isStatusDisallowed(requestedStatus)) { - return UNLOADED_CHUNK_FUTURE; - } else { - CompletableFuture> completableFuture = this.getOrCreateFuture(requestedStatus); - if (completableFuture.isDone()) { - return completableFuture; - } else { - ChunkGenerationTask chunkGenerationTask = this.task.get(); - if (chunkGenerationTask == null || requestedStatus.isAfter(chunkGenerationTask.targetStatus)) { - this.rescheduleChunkTask(chunkLoadingManager, requestedStatus); - } - - return completableFuture; - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } CompletableFuture> applyStep(ChunkStep step, GeneratingChunkMap chunkLoadingManager, StaticCache2D chunks) { - if (this.isStatusDisallowed(step.targetStatus())) { - return UNLOADED_CHUNK_FUTURE; - } else { - return this.acquireStatusBump(step.targetStatus()) ? chunkLoadingManager.applyStep(this, step, chunks).handle((chunk, throwable) -> { - if (throwable != null) { - CrashReport crashReport = CrashReport.forThrowable(throwable, "Exception chunk generation/loading"); - MinecraftServer.setFatalException(new ReportedException(crashReport)); - } else { - this.completeFuture(step.targetStatus(), chunk); - } - - return ChunkResult.of(chunk); - }) : this.getOrCreateFuture(step.targetStatus()); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } protected void updateHighestAllowedStatus(ChunkMap chunkLoadingManager) { - ChunkStatus chunkStatus = this.highestAllowedStatus; - ChunkStatus chunkStatus2 = ChunkLevel.generationStatus(this.getTicketLevel()); - this.highestAllowedStatus = chunkStatus2; - boolean bl = chunkStatus != null && (chunkStatus2 == null || chunkStatus2.isBefore(chunkStatus)); - if (bl) { - this.failAndClearPendingFuturesBetween(chunkStatus2, chunkStatus); - if (this.task.get() != null) { - this.rescheduleChunkTask(chunkLoadingManager, this.findHighestStatusWithPendingFuture(chunkStatus2)); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void replaceProtoChunk(ImposterProtoChunk chunk) { - CompletableFuture> completableFuture = CompletableFuture.completedFuture(ChunkResult.of(chunk)); - - for (int i = 0; i < this.futures.length() - 1; i++) { - CompletableFuture> completableFuture2 = this.futures.get(i); - Objects.requireNonNull(completableFuture2); - ChunkAccess chunkAccess = completableFuture2.getNow(NOT_DONE_YET).orElse(null); - if (!(chunkAccess instanceof ProtoChunk)) { - throw new IllegalStateException("Trying to replace a ProtoChunk, but found " + chunkAccess); - } - - if (!this.futures.compareAndSet(i, completableFuture2, completableFuture)) { - throw new IllegalStateException("Future changed by other thread while trying to replace it"); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } void removeTask(ChunkGenerationTask loader) { - this.task.compareAndSet(loader, null); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void rescheduleChunkTask(ChunkMap chunkLoadingManager, @Nullable ChunkStatus requestedStatus) { - ChunkGenerationTask chunkGenerationTask; - if (requestedStatus != null) { - chunkGenerationTask = chunkLoadingManager.scheduleGenerationTask(requestedStatus, this.getPos()); - } else { - chunkGenerationTask = null; - } - - ChunkGenerationTask chunkGenerationTask3 = this.task.getAndSet(chunkGenerationTask); - if (chunkGenerationTask3 != null) { - chunkGenerationTask3.markForCancellation(); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private CompletableFuture> getOrCreateFuture(ChunkStatus status) { - if (this.isStatusDisallowed(status)) { - return UNLOADED_CHUNK_FUTURE; - } else { - int i = status.getIndex(); - CompletableFuture> completableFuture = this.futures.get(i); - - while (completableFuture == null) { - CompletableFuture> completableFuture2 = new CompletableFuture<>(); - completableFuture = this.futures.compareAndExchange(i, null, completableFuture2); - if (completableFuture == null) { - if (this.isStatusDisallowed(status)) { - this.failAndClearPendingFuture(i, completableFuture2); - return UNLOADED_CHUNK_FUTURE; - } - - return completableFuture2; - } - } - - return completableFuture; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void failAndClearPendingFuturesBetween(@Nullable ChunkStatus from, ChunkStatus to) { - int i = from == null ? 0 : from.getIndex() + 1; - int j = to.getIndex(); - - for (int k = i; k <= j; k++) { - CompletableFuture> completableFuture = this.futures.get(k); - if (completableFuture != null) { - this.failAndClearPendingFuture(k, completableFuture); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void failAndClearPendingFuture(int statusIndex, CompletableFuture> previousFuture) { - if (previousFuture.complete(UNLOADED_CHUNK) && !this.futures.compareAndSet(statusIndex, previousFuture, null)) { - throw new IllegalStateException("Nothing else should replace the future here"); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void completeFuture(ChunkStatus status, ChunkAccess chunk) { - ChunkResult chunkResult = ChunkResult.of(chunk); - int i = status.getIndex(); - - while (true) { - CompletableFuture> completableFuture = this.futures.get(i); - if (completableFuture == null) { - if (this.futures.compareAndSet(i, null, CompletableFuture.completedFuture(chunkResult))) { - return; - } - } else { - if (completableFuture.complete(chunkResult)) { - return; - } - - if (completableFuture.getNow(NOT_DONE_YET).isSuccess()) { - throw new IllegalStateException("Trying to complete a future but found it to be completed successfully already"); - } - - Thread.yield(); - } - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable private ChunkStatus findHighestStatusWithPendingFuture(@Nullable ChunkStatus checkUpperBound) { - if (checkUpperBound == null) { - return null; - } else { - ChunkStatus chunkStatus = checkUpperBound; - - for (ChunkStatus chunkStatus2 = this.startedWork.get(); - chunkStatus2 == null || chunkStatus.isAfter(chunkStatus2); - chunkStatus = chunkStatus.getParent() - ) { - if (this.futures.get(chunkStatus.getIndex()) != null) { - return chunkStatus; - } - - if (chunkStatus == ChunkStatus.EMPTY) { - break; - } - } - - return null; - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private boolean acquireStatusBump(ChunkStatus nextStatus) { - ChunkStatus chunkStatus = nextStatus == ChunkStatus.EMPTY ? null : nextStatus.getParent(); - ChunkStatus chunkStatus2 = this.startedWork.compareAndExchange(chunkStatus, nextStatus); - if (chunkStatus2 == chunkStatus) { - return true; - } else if (chunkStatus2 != null && !nextStatus.isAfter(chunkStatus2)) { - return false; - } else { - throw new IllegalStateException("Unexpected last startedWork status: " + chunkStatus2 + " while trying to start: " + nextStatus); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private boolean isStatusDisallowed(ChunkStatus status) { - ChunkStatus chunkStatus = this.highestAllowedStatus; - return chunkStatus == null || status.isAfter(chunkStatus); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void increaseGenerationRefCount() { - this.generationRefCount.incrementAndGet(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void decreaseGenerationRefCount() { - int i = this.generationRefCount.decrementAndGet(); - if (i < 0) { - throw new IllegalStateException("More releases than claims. Count: " + i); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public int getGenerationRefCount() { - return this.generationRefCount.get(); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable public ChunkAccess getChunkIfPresentUnchecked(ChunkStatus requestedStatus) { - CompletableFuture> completableFuture = this.futures.get(requestedStatus.getIndex()); - return completableFuture == null ? null : completableFuture.getNow(NOT_DONE_YET).orElse(null); + // Paper start - rewrite chunk system + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)(Object)this).moonrise$getRealChunkHolder().getChunkIfPresentUnchecked(requestedStatus); + // Paper end - rewrite chunk system } @Nullable public ChunkAccess getChunkIfPresent(ChunkStatus requestedStatus) { - return this.isStatusDisallowed(requestedStatus) ? null : this.getChunkIfPresentUnchecked(requestedStatus); + // Paper start - rewrite chunk system + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)(Object)this).moonrise$getRealChunkHolder().getChunkIfPresent(requestedStatus); + // Paper end - rewrite chunk system } @Nullable public ChunkAccess getLatestChunk() { - ChunkStatus chunkStatus = this.startedWork.get(); - if (chunkStatus == null) { - return null; - } else { - ChunkAccess chunkAccess = this.getChunkIfPresentUnchecked(chunkStatus); - return chunkAccess != null ? chunkAccess : this.getChunkIfPresentUnchecked(chunkStatus.getParent()); - } + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder.ChunkCompletion lastCompletion = ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)(Object)this).moonrise$getRealChunkHolder().getLastChunkCompletion(); + return lastCompletion == null ? null : lastCompletion.chunk(); + // Paper end - rewrite chunk system } @Nullable public ChunkStatus getPersistedStatus() { - CompletableFuture> completableFuture = this.futures.get(ChunkStatus.EMPTY.getIndex()); - ChunkAccess chunkAccess = completableFuture == null ? null : completableFuture.getNow(NOT_DONE_YET).orElse(null); - return chunkAccess == null ? null : chunkAccess.getPersistedStatus(); + // Paper start - rewrite chunk system + final ChunkAccess chunk = this.getLatestChunk(); + return chunk == null ? null : chunk.getPersistedStatus(); + // Paper end - rewrite chunk system } public ChunkPos getPos() { @@ -277,7 +133,7 @@ public abstract class GenerationChunkHolder { } public FullChunkStatus getFullStatus() { - return ChunkLevel.fullStatus(this.getTicketLevel()); + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)(Object)this).moonrise$getRealChunkHolder().getChunkStatus(); // Paper - rewrite chunk system } public abstract int getTicketLevel(); @@ -286,26 +142,15 @@ public abstract class GenerationChunkHolder { @VisibleForDebug public List>>> getAllFutures() { - List>>> list = new ArrayList<>(); - - for (int i = 0; i < CHUNK_STATUSES.size(); i++) { - list.add(Pair.of(CHUNK_STATUSES.get(i), this.futures.get(i))); - } - - return list; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Nullable @VisibleForDebug public ChunkStatus getLatestStatus() { - for (int i = CHUNK_STATUSES.size() - 1; i >= 0; i--) { - ChunkStatus chunkStatus = CHUNK_STATUSES.get(i); - ChunkAccess chunkAccess = this.getChunkIfPresentUnchecked(chunkStatus); - if (chunkAccess != null) { - return chunkStatus; - } - } - - return null; + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder.ChunkCompletion lastCompletion = ((ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkHolder)(Object)this).moonrise$getRealChunkHolder().getLastChunkCompletion(); + return lastCompletion == null ? null : lastCompletion.genStatus(); + // Paper end - rewrite chunk system } } diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java index a94833f58eb823332890d07c147161e9e0a938e9..cba80945fa0d8ca55b0d422925f8c94c51f9a50d 100644 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java @@ -46,7 +46,7 @@ import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemp import net.minecraft.world.level.storage.DimensionDataStorage; import net.minecraft.world.level.storage.LevelStorageSource; -public class ServerChunkCache extends ChunkSource { +public class ServerChunkCache extends ChunkSource implements ca.spottedleaf.moonrise.patches.chunk_system.world.ChunkSystemServerChunkCache { // Paper - rewrite chunk system public static final org.slf4j.Logger LOGGER = com.mojang.logging.LogUtils.getLogger(); // Paper private static final List CHUNK_STATUSES = ChunkStatus.getStatusList(); @@ -75,6 +75,62 @@ public class ServerChunkCache extends ChunkSource { long chunkFutureAwaitCounter; private final LevelChunk[] lastLoadedChunks = new LevelChunk[4 * 4]; // Paper end + // Paper start - rewrite chunk system + private final ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable fullChunks = new ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable<>(); + + @Override + public final void moonrise$setFullChunk(final int chunkX, final int chunkZ, final LevelChunk chunk) { + final long key = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(chunkX, chunkZ); + if (chunk == null) { + this.fullChunks.remove(key); + } else { + this.fullChunks.put(key, chunk); + } + } + + @Override + public final LevelChunk moonrise$getFullChunkIfLoaded(final int chunkX, final int chunkZ) { + return this.fullChunks.get(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(chunkX, chunkZ)); + } + + private ChunkAccess syncLoad(final int chunkX, final int chunkZ, final ChunkStatus toStatus) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler chunkTaskScheduler = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler(); + final CompletableFuture completable = new CompletableFuture<>(); + chunkTaskScheduler.scheduleChunkLoad( + chunkX, chunkZ, toStatus, true, ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority.BLOCKING, + completable::complete + ); + + if (io.papermc.paper.util.TickThread.isTickThreadFor(this.level, chunkX, chunkZ)) { + ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.pushChunkWait(this.level, chunkX, chunkZ); + this.mainThreadProcessor.managedBlock(completable::isDone); + ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.popChunkWait(); + } + + final ChunkAccess ret = completable.join(); + if (ret == null) { + throw new IllegalStateException("Chunk not loaded when requested"); + } + + return ret; + } + + private ChunkAccess getChunkFallback(final int chunkX, final int chunkZ, final ChunkStatus toStatus, + final boolean load) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler chunkTaskScheduler = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler(); + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager chunkHolderManager = chunkTaskScheduler.chunkHolderManager; + + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder currentChunk = chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(chunkX, chunkZ)); + + final ChunkAccess ifPresent = currentChunk == null ? null : currentChunk.getChunkIfPresent(toStatus); + + if (ifPresent != null && (toStatus != ChunkStatus.FULL || currentChunk.isFullChunkReady())) { + return ifPresent; + } + + return load ? this.syncLoad(chunkX, chunkZ, toStatus) : null; + } + // Paper end - rewrite chunk system public ServerChunkCache(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor workerExecutor, ChunkGenerator chunkGenerator, int viewDistance, int simulationDistance, boolean dsync, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier persistentStateManagerFactory) { this.level = world; @@ -248,63 +304,25 @@ public class ServerChunkCache extends ChunkSource { @Nullable @Override public ChunkAccess getChunk(int x, int z, ChunkStatus leastStatus, boolean create) { - if (Thread.currentThread() != this.mainThread) { - return (ChunkAccess) CompletableFuture.supplyAsync(() -> { - return this.getChunk(x, z, leastStatus, create); - }, this.mainThreadProcessor).join(); - } else { - // Paper start - Perf: Optimise getChunkAt calls for loaded chunks - LevelChunk ifLoaded = this.getChunkAtIfLoadedMainThread(x, z); - if (ifLoaded != null) { - return ifLoaded; - } - // Paper end - Perf: Optimise getChunkAt calls for loaded chunks - ProfilerFiller gameprofilerfiller = this.level.getProfiler(); - - gameprofilerfiller.incrementCounter("getChunk"); - long k = ChunkPos.asLong(x, z); + // Paper start - rewrite chunk system + if (leastStatus == ChunkStatus.FULL) { + final LevelChunk ret = this.fullChunks.get(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(x, z)); - for (int l = 0; l < 4; ++l) { - if (k == this.lastChunkPos[l] && leastStatus == this.lastChunkStatus[l]) { - ChunkAccess ichunkaccess = this.lastChunk[l]; - - if (ichunkaccess != null) { // CraftBukkit - the chunk can become accessible in the meantime TODO for non-null chunks it might also make sense to check that the chunk's state hasn't changed in the meantime - return ichunkaccess; - } - } + if (ret != null) { + return ret; } - gameprofilerfiller.incrementCounter("getChunkCacheMiss"); - CompletableFuture> completablefuture = this.getChunkFutureMainThread(x, z, leastStatus, create); - ServerChunkCache.MainThreadExecutor chunkproviderserver_b = this.mainThreadProcessor; - - Objects.requireNonNull(completablefuture); - if (!completablefuture.isDone()) { // Paper - com.destroystokyo.paper.io.SyncLoadFinder.logSyncLoad(this.level, x, z); // Paper - Add debug for sync chunk loads - this.level.timings.syncChunkLoad.startTiming(); // Paper - chunkproviderserver_b.managedBlock(completablefuture::isDone); - this.level.timings.syncChunkLoad.stopTiming(); // Paper - } // Paper - ChunkResult chunkresult = (ChunkResult) completablefuture.join(); - ChunkAccess ichunkaccess1 = (ChunkAccess) chunkresult.orElse(null); // CraftBukkit - decompile error - - if (ichunkaccess1 == null && create) { - throw (IllegalStateException) Util.pauseInIde(new IllegalStateException("Chunk not there when requested: " + chunkresult.getError())); - } else { - this.storeInCache(k, ichunkaccess1, leastStatus); - return ichunkaccess1; - } + return create ? this.getChunkFallback(x, z, leastStatus, create) : null; } + + return this.getChunkFallback(x, z, leastStatus, create); + // Paper end - rewrite chunk system } @Nullable @Override public LevelChunk getChunkNow(int chunkX, int chunkZ) { - if (Thread.currentThread() != this.mainThread) { - return null; - } else { - return this.getChunkAtIfLoadedMainThread(chunkX, chunkZ); // Paper - Perf: Optimise getChunkAt calls for loaded chunks - } + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getFullChunkIfLoaded(chunkX, chunkZ); // Paper - rewrite chunk system } private void clearCache() { @@ -335,56 +353,59 @@ public class ServerChunkCache extends ChunkSource { } private CompletableFuture> getChunkFutureMainThread(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create) { - ChunkPos chunkcoordintpair = new ChunkPos(chunkX, chunkZ); - long k = chunkcoordintpair.toLong(); - int l = ChunkLevel.byStatus(leastStatus); - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(k); + // Paper start - rewrite chunk system + io.papermc.paper.util.TickThread.ensureTickThread(this.level, chunkX, chunkZ, "Scheduling chunk load off-main"); - // CraftBukkit start - don't add new ticket for currently unloading chunk - boolean currentlyUnloading = false; - if (playerchunk != null) { - FullChunkStatus oldChunkState = ChunkLevel.fullStatus(playerchunk.oldTicketLevel); - FullChunkStatus currentChunkState = ChunkLevel.fullStatus(playerchunk.getTicketLevel()); - currentlyUnloading = (oldChunkState.isOrAfter(FullChunkStatus.FULL) && !currentChunkState.isOrAfter(FullChunkStatus.FULL)); - } - if (create && !currentlyUnloading) { - // CraftBukkit end - this.distanceManager.addTicket(TicketType.UNKNOWN, chunkcoordintpair, l, chunkcoordintpair); - if (this.chunkAbsent(playerchunk, l)) { - ProfilerFiller gameprofilerfiller = this.level.getProfiler(); - - gameprofilerfiller.push("chunkLoad"); - this.runDistanceManagerUpdates(); - playerchunk = this.getVisibleChunkIfPresent(k); - gameprofilerfiller.pop(); - if (this.chunkAbsent(playerchunk, l)) { - throw (IllegalStateException) Util.pauseInIde(new IllegalStateException("No chunk holder after ticket has been added")); - } - } + final int minLevel = ChunkLevel.byStatus(leastStatus); + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkX, chunkZ); + + final boolean needsFullScheduling = leastStatus == ChunkStatus.FULL && (chunkHolder == null || !chunkHolder.getChunkStatus().isOrAfter(FullChunkStatus.FULL)); + + if ((chunkHolder == null || chunkHolder.getTicketLevel() > minLevel || needsFullScheduling) && !create) { + return ChunkHolder.UNLOADED_CHUNK_FUTURE; } - return this.chunkAbsent(playerchunk, l) ? GenerationChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.scheduleChunkGenerationTask(leastStatus, this.chunkMap); - } + final ChunkAccess ifPresent = chunkHolder == null ? null : chunkHolder.getChunkIfPresent(leastStatus); + if (needsFullScheduling || ifPresent == null) { + // schedule + final CompletableFuture> ret = new CompletableFuture<>(); + final Consumer complete = (ChunkAccess chunk) -> { + if (chunk == null) { + ret.complete(ChunkHolder.UNLOADED_CHUNK); + } else { + ret.complete(ChunkResult.of(chunk)); + } + }; - private boolean chunkAbsent(@Nullable ChunkHolder holder, int maxLevel) { - return holder == null || holder.oldTicketLevel > maxLevel; // CraftBukkit using oldTicketLevel for isLoaded checks + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().scheduleChunkLoad( + chunkX, chunkZ, leastStatus, true, + ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority.HIGHER, + complete + ); + + return ret; + } else { + // can return now + return CompletableFuture.completedFuture(ChunkResult.of(ifPresent)); + } + // Paper end - rewrite chunk system } @Override public boolean hasChunk(int x, int z) { - ChunkHolder playerchunk = this.getVisibleChunkIfPresent((new ChunkPos(x, z)).toLong()); - int k = ChunkLevel.byStatus(ChunkStatus.FULL); - - return !this.chunkAbsent(playerchunk, k); + return this.getChunkNow(x, z) != null; // Paper - rewrite chunk system } @Nullable @Override public LightChunk getChunkForLighting(int chunkX, int chunkZ) { - long k = ChunkPos.asLong(chunkX, chunkZ); - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(k); - - return playerchunk == null ? null : playerchunk.getChunkIfPresentUnchecked(ChunkStatus.INITIALIZE_LIGHT.getParent()); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkX, chunkZ); + if (newChunkHolder == null) { + return null; + } + return newChunkHolder.getChunkIfPresentUnchecked(ChunkStatus.INITIALIZE_LIGHT.getParent()); + // Paper end - rewrite chunk system } @Override @@ -397,16 +418,7 @@ public class ServerChunkCache extends ChunkSource { } public boolean runDistanceManagerUpdates() { // Paper - public - boolean flag = this.distanceManager.runAllUpdates(this.chunkMap); - boolean flag1 = this.chunkMap.promoteChunkMap(); - - this.chunkMap.runGenerationTasks(); - if (!flag && !flag1) { - return false; - } else { - this.clearCache(); - return true; - } + return ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.processTicketUpdates(); // Paper - rewrite chunk system } // Paper start @@ -416,13 +428,14 @@ public class ServerChunkCache extends ChunkSource { // Paper end public boolean isPositionTicking(long pos) { - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(pos); - - return playerchunk == null ? false : (!this.level.shouldTickBlocksAt(pos) ? false : ((ChunkResult) playerchunk.getTickingChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).isSuccess()); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(pos); + return newChunkHolder != null && newChunkHolder.isTickingReady(); + // Paper end - rewrite chunk system } public void save(boolean flush) { - this.runDistanceManagerUpdates(); + // Paper - rewrite chunk system try (co.aikar.timings.Timing timed = level.timings.chunkSaveData.startTiming()) { // Paper - Timings this.chunkMap.saveAllChunks(flush); } // Paper - Timings @@ -435,12 +448,7 @@ public class ServerChunkCache extends ChunkSource { } public void close(boolean save) throws IOException { - if (save) { - this.save(true); - } - // CraftBukkit end - this.lightEngine.close(); - this.chunkMap.close(); + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getChunkTaskScheduler().chunkHolderManager.close(save, true); // Paper - rewrite chunk system } // CraftBukkit start - modelled on below @@ -468,6 +476,7 @@ public class ServerChunkCache extends ChunkSource { this.level.getProfiler().popPush("chunks"); if (tickChunks) { this.level.timings.chunks.startTiming(); // Paper - timings + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getPlayerChunkLoader().tick(); // Paper - rewrite chunk system this.tickChunks(); this.level.timings.chunks.stopTiming(); // Paper - timings this.chunkMap.tick(); @@ -567,11 +576,12 @@ public class ServerChunkCache extends ChunkSource { } private void getFullChunk(long pos, Consumer chunkConsumer) { - ChunkHolder playerchunk = this.getVisibleChunkIfPresent(pos); - - if (playerchunk != null) { - ((ChunkResult) playerchunk.getFullChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).ifSuccess(chunkConsumer); + // Paper start - rewrite chunk system + final LevelChunk fullChunk = this.getChunkNow(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkX(pos), ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkZ(pos)); + if (fullChunk != null) { + chunkConsumer.accept(fullChunk); } + // Paper end - rewrite chunk system } @@ -665,6 +675,12 @@ public class ServerChunkCache extends ChunkSource { this.chunkMap.setServerViewDistance(watchDistance); } + // Paper start - rewrite chunk system + public void setSendViewDistance(int viewDistance) { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getPlayerChunkLoader().setSendDistance(viewDistance); + } + // Paper end - rewrite chunk system + public void setSimulationDistance(int simulationDistance) { this.distanceManager.updateSimulationDistance(simulationDistance); } @@ -743,16 +759,14 @@ public class ServerChunkCache extends ChunkSource { @Override // CraftBukkit start - process pending Chunk loadCallback() and unloadCallback() after each run task public boolean pollTask() { - try { - if (ServerChunkCache.this.runDistanceManagerUpdates()) { + // Paper start - rewrite chunk system + final ServerChunkCache serverChunkCache = ServerChunkCache.this; + if (serverChunkCache.runDistanceManagerUpdates()) { return true; } else { - ServerChunkCache.this.lightEngine.tryScheduleUpdate(); - return super.pollTask(); + return super.pollTask() | ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)serverChunkCache.level).moonrise$getChunkTaskScheduler().executeMainThreadTask(); } - } finally { - ServerChunkCache.this.chunkMap.callbackExecutor.run(); - } + // Paper end - rewrite chunk system // CraftBukkit end } } diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java index 4d7e234d379a451c4bb53bc2fcdf22cb191f8d1a..f8ea3298a995901e114cb811c01b504c0029c2af 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -184,7 +184,7 @@ import org.bukkit.event.weather.LightningStrikeEvent; import org.bukkit.event.world.TimeSkipEvent; // CraftBukkit end -public class ServerLevel extends Level implements WorldGenLevel { +public class ServerLevel extends Level implements WorldGenLevel, ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel, ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevelReader { // Paper - rewrite chunk system public static final BlockPos END_SPAWN_POINT = new BlockPos(100, 50, 0); public static final IntProvider RAIN_DELAY = UniformInt.of(12000, 180000); @@ -200,7 +200,7 @@ public class ServerLevel extends Level implements WorldGenLevel { public final PrimaryLevelData serverLevelData; // CraftBukkit - type private int lastSpawnChunkRadius; final EntityTickList entityTickList; - public final PersistentEntitySectionManager entityManager; + // Paper - rewrite chunk system private final GameEventDispatcher gameEventDispatcher; public boolean noSave; private final SleepStatus sleepStatus; @@ -339,6 +339,162 @@ public class ServerLevel extends Level implements WorldGenLevel { return player != null && player.level() == this ? player : null; } // Paper end - optimise getPlayerByUUID + // Paper start - rewrite chunk system + private boolean markedClosing; + private final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder viewDistanceHolder = new ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder(); + private final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader chunkLoader = new ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader((ServerLevel)(Object)this); + private final ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.EntityDataController entityDataController; + private final ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.PoiDataController poiDataController; + private final ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.ChunkDataController chunkDataController; + private final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler chunkTaskScheduler; + + @Override + public final LevelChunk moonrise$getFullChunkIfLoaded(final int chunkX, final int chunkZ) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (newChunkHolder == null || !newChunkHolder.isFullChunkReady()) { + return null; + } + + if (newChunkHolder.getCurrentChunk() instanceof LevelChunk levelChunk) { + return levelChunk; + } + // race condition: chunk unloaded, only happens off-main + return null; + } + + @Override + public final ChunkAccess moonrise$getAnyChunkIfLoaded(final int chunkX, final int chunkZ) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(chunkX, chunkZ)); + if (newChunkHolder == null) { + return null; + } + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder.ChunkCompletion lastCompletion = newChunkHolder.getLastChunkCompletion(); + return lastCompletion == null ? null : lastCompletion.chunk(); + } + + @Override + public final ChunkAccess moonrise$getSpecificChunkIfLoaded(final int chunkX, final int chunkZ, final net.minecraft.world.level.chunk.status.ChunkStatus leastStatus) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder newChunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkX, chunkZ); + if (newChunkHolder == null) { + return null; + } + return newChunkHolder.getChunkIfPresentUnchecked(leastStatus); + } + + @Override + public final ChunkAccess moonrise$syncLoadNonFull(final int chunkX, final int chunkZ, final net.minecraft.world.level.chunk.status.ChunkStatus status) { + return this.moonrise$getChunkTaskScheduler().syncLoadNonFull(chunkX, chunkZ, status); + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler moonrise$getChunkTaskScheduler() { + return this.chunkTaskScheduler; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.ChunkDataController moonrise$getChunkDataController() { + return this.chunkDataController; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.ChunkDataController moonrise$getPoiChunkDataController() { + return this.poiDataController; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.ChunkDataController moonrise$getEntityChunkDataController() { + return this.entityDataController; + } + + @Override + public final int moonrise$getRegionChunkShift() { + return io.papermc.paper.threadedregions.TickRegions.getRegionChunkShift(); + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader moonrise$getPlayerChunkLoader() { + return this.chunkLoader; + } + + @Override + public final void moonrise$loadChunksAsync(final BlockPos pos, final int radiusBlocks, + final ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority priority, + final java.util.function.Consumer> onLoad) { + this.moonrise$loadChunksAsync( + (pos.getX() - radiusBlocks) >> 4, + (pos.getX() + radiusBlocks) >> 4, + (pos.getZ() - radiusBlocks) >> 4, + (pos.getZ() + radiusBlocks) >> 4, + priority, onLoad + ); + } + + @Override + public final void moonrise$loadChunksAsync(final BlockPos pos, final int radiusBlocks, + final net.minecraft.world.level.chunk.status.ChunkStatus chunkStatus, final ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority priority, + final java.util.function.Consumer> onLoad) { + this.moonrise$loadChunksAsync( + (pos.getX() - radiusBlocks) >> 4, + (pos.getX() + radiusBlocks) >> 4, + (pos.getZ() - radiusBlocks) >> 4, + (pos.getZ() + radiusBlocks) >> 4, + chunkStatus, priority, onLoad + ); + } + + @Override + public final void moonrise$loadChunksAsync(final int minChunkX, final int maxChunkX, final int minChunkZ, final int maxChunkZ, + final ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority priority, + final java.util.function.Consumer> onLoad) { + this.moonrise$loadChunksAsync(minChunkX, maxChunkX, minChunkZ, maxChunkZ, net.minecraft.world.level.chunk.status.ChunkStatus.FULL, priority, onLoad); + } + + @Override + public final void moonrise$loadChunksAsync(final int minChunkX, final int maxChunkX, final int minChunkZ, final int maxChunkZ, + final net.minecraft.world.level.chunk.status.ChunkStatus chunkStatus, final ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority priority, + final java.util.function.Consumer> onLoad) { + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler chunkTaskScheduler = this.moonrise$getChunkTaskScheduler(); + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager chunkHolderManager = chunkTaskScheduler.chunkHolderManager; + + final int requiredChunks = (maxChunkX - minChunkX + 1) * (maxChunkZ - minChunkZ + 1); + final java.util.concurrent.atomic.AtomicInteger loadedChunks = new java.util.concurrent.atomic.AtomicInteger(); + final Long holderIdentifier = ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.getNextChunkLoadId(); + final int ticketLevel = ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.getTicketLevel(chunkStatus); + + final List ret = new ArrayList<>(requiredChunks); + + final java.util.function.Consumer consumer = (final ChunkAccess chunk) -> { + if (chunk != null) { + synchronized (ret) { + ret.add(chunk); + } + chunkHolderManager.addTicketAtLevel(ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.CHUNK_LOAD, chunk.getPos(), ticketLevel, holderIdentifier); + } + if (loadedChunks.incrementAndGet() == requiredChunks) { + try { + onLoad.accept(java.util.Collections.unmodifiableList(ret)); + } finally { + for (int i = 0, len = ret.size(); i < len; ++i) { + final ChunkPos chunkPos = ret.get(i).getPos(); + + chunkHolderManager.removeTicketAtLevel(ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.CHUNK_LOAD, chunkPos, ticketLevel, holderIdentifier); + } + } + } + }; + + for (int cx = minChunkX; cx <= maxChunkX; ++cx) { + for (int cz = minChunkZ; cz <= maxChunkZ; ++cz) { + chunkTaskScheduler.scheduleChunkLoad(cx, cz, chunkStatus, true, priority, consumer); + } + } + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder moonrise$getViewDistanceHolder() { + return this.viewDistanceHolder; + } + // Paper end - rewrite chunk system // Add env and gen to constructor, IWorldDataServer -> WorldDataServer public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, PrimaryLevelData iworlddataserver, ResourceKey resourcekey, LevelStem worlddimension, ChunkProgressListener worldloadlistener, boolean flag, long i, List list, boolean flag1, @Nullable RandomSequences randomsequences, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) { @@ -385,14 +541,13 @@ public class ServerLevel extends Level implements WorldGenLevel { DataFixer datafixer = minecraftserver.getFixerUpper(); EntityPersistentStorage entitypersistentstorage = new EntityStorage(new SimpleRegionStorage(new RegionStorageInfo(convertable_conversionsession.getLevelId(), resourcekey, "entities"), convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), datafixer, flag2, DataFixTypes.ENTITY_CHUNK), this, minecraftserver); - this.entityManager = new PersistentEntitySectionManager<>(Entity.class, new ServerLevel.EntityCallbacks(), entitypersistentstorage); + // Paper - rewrite chunk system StructureTemplateManager structuretemplatemanager = minecraftserver.getStructureManager(); int j = this.spigotConfig.viewDistance; // Spigot int k = this.spigotConfig.simulationDistance; // Spigot - PersistentEntitySectionManager persistententitysectionmanager = this.entityManager; + // Paper - rewrite chunk system - Objects.requireNonNull(this.entityManager); - this.chunkSource = new ServerChunkCache(this, convertable_conversionsession, datafixer, structuretemplatemanager, executor, chunkgenerator, j, k, flag2, worldloadlistener, persistententitysectionmanager::updateChunkStatus, () -> { + this.chunkSource = new ServerChunkCache(this, convertable_conversionsession, datafixer, structuretemplatemanager, executor, chunkgenerator, j, k, flag2, worldloadlistener, null, () -> { // Paper - rewrite chunk system return minecraftserver.overworld().getDataStorage(); }); this.chunkSource.getGeneratorState().ensureStructuresGenerated(); @@ -420,6 +575,19 @@ public class ServerLevel extends Level implements WorldGenLevel { this.randomSequences = (RandomSequences) Objects.requireNonNullElseGet(randomsequences, () -> { return (RandomSequences) this.getDataStorage().computeIfAbsent(RandomSequences.factory(l), "random_sequences"); }); + // Paper start - rewrite chunk system + this.entityDataController = new ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.EntityDataController( + new ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.EntityDataController.EntityRegionFileStorage( + new RegionStorageInfo(convertable_conversionsession.getLevelId(), resourcekey, "entities"), + convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), + minecraftserver.forceSynchronousWrites() + ) + ); + this.poiDataController = new ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.PoiDataController((ServerLevel)(Object)this); + this.chunkDataController = new ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.ChunkDataController((ServerLevel)(Object)this); + this.moonrise$setEntityLookup(new ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server.ServerEntityLookup((ServerLevel)(Object)this, ((ServerLevel)(Object)this).new EntityCallbacks())); + this.chunkTaskScheduler = new ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler((ServerLevel)(Object)this, ca.spottedleaf.moonrise.common.util.MoonriseCommon.WORKER_POOL); + // Paper end - rewrite chunk system this.getCraftServer().addWorld(this.getWorld()); // CraftBukkit } @@ -553,7 +721,7 @@ public class ServerLevel extends Level implements WorldGenLevel { gameprofilerfiller.push("checkDespawn"); entity.checkDespawn(); gameprofilerfiller.pop(); - if (this.chunkSource.chunkMap.getDistanceManager().inEntityTickingRange(entity.chunkPosition().toLong())) { + if (true || this.chunkSource.chunkMap.getDistanceManager().inEntityTickingRange(entity.chunkPosition().toLong())) { // Paper - rewrite chunk system Entity entity1 = entity.getVehicle(); if (entity1 != null) { @@ -578,13 +746,16 @@ public class ServerLevel extends Level implements WorldGenLevel { } gameprofilerfiller.push("entityManagement"); - this.entityManager.tick(); + // Paper - rewrite chunk system gameprofilerfiller.pop(); } @Override public boolean shouldTickBlocksAt(long chunkPos) { - return this.chunkSource.chunkMap.getDistanceManager().inBlockTickingRange(chunkPos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder holder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkPos); + return holder != null && holder.isTickingReady(); + // Paper end - rewrite chunk system } protected void tickTime() { @@ -1061,6 +1232,11 @@ public class ServerLevel extends Level implements WorldGenLevel { } public void save(@Nullable ProgressListener progressListener, boolean flush, boolean savingDisabled) { + // Paper start - add close param + this.save(progressListener, flush, savingDisabled, false); + } + public void save(@Nullable ProgressListener progressListener, boolean flush, boolean savingDisabled, boolean close) { + // Paper end - add close param ServerChunkCache chunkproviderserver = this.getChunkSource(); if (!savingDisabled) { @@ -1076,16 +1252,21 @@ public class ServerLevel extends Level implements WorldGenLevel { } timings.worldSaveChunks.startTiming(); // Paper - chunkproviderserver.save(flush); + if (!close) { chunkproviderserver.save(flush); } // Paper - add close param timings.worldSaveChunks.stopTiming(); // Paper }// Paper - if (flush) { - this.entityManager.saveAll(); - } else { - this.entityManager.autoSave(); - } + // Paper - rewrite chunk system } + // Paper start - add close param + if (close) { + try { + chunkproviderserver.close(!savingDisabled); + } catch (IOException never) { + throw new RuntimeException(never); + } + } + // Paper end - add close param // CraftBukkit start - moved from MinecraftServer.saveChunks ServerLevel worldserver1 = this; @@ -1218,7 +1399,7 @@ public class ServerLevel extends Level implements WorldGenLevel { this.removePlayerImmediately((ServerPlayer) entity, Entity.RemovalReason.DISCARDED); } - this.entityManager.addNewEntity(player); + this.moonrise$getEntityLookup().addNewEntity(player); // Paper - rewrite chunk system } // CraftBukkit start @@ -1249,7 +1430,7 @@ public class ServerLevel extends Level implements WorldGenLevel { } // CraftBukkit end - return this.entityManager.addNewEntity(entity); + return this.moonrise$getEntityLookup().addNewEntity(entity); // Paper - rewrite chunk system } } @@ -1260,11 +1441,7 @@ public class ServerLevel extends Level implements WorldGenLevel { public boolean tryAddFreshEntityWithPassengers(Entity entity, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason reason) { // CraftBukkit end - Stream stream = entity.getSelfAndPassengers().map(Entity::getUUID); // CraftBukkit - decompile error - PersistentEntitySectionManager persistententitysectionmanager = this.entityManager; - - Objects.requireNonNull(this.entityManager); - if (stream.anyMatch(persistententitysectionmanager::isLoaded)) { + if (entity.getSelfAndPassengers().map(Entity::getUUID).anyMatch(this.moonrise$getEntityLookup()::hasEntity)) { // Paper - rewrite chunk system return false; } else { this.addFreshEntityWithPassengers(entity, reason); // CraftBukkit @@ -1850,7 +2027,7 @@ public class ServerLevel extends Level implements WorldGenLevel { } } - bufferedwriter.write(String.format(Locale.ROOT, "entities: %s\n", this.entityManager.gatherStats())); + bufferedwriter.write(String.format(Locale.ROOT, "entities: %s\n", this.moonrise$getEntityLookup().getDebugInfo())); // Paper - rewrite chunk system bufferedwriter.write(String.format(Locale.ROOT, "block_entity_tickers: %d\n", this.blockEntityTickers.size())); bufferedwriter.write(String.format(Locale.ROOT, "block_ticks: %d\n", this.getBlockTicks().count())); bufferedwriter.write(String.format(Locale.ROOT, "fluid_ticks: %d\n", this.getFluidTicks().count())); @@ -1899,7 +2076,7 @@ public class ServerLevel extends Level implements WorldGenLevel { BufferedWriter bufferedwriter2 = Files.newBufferedWriter(path1); try { - playerchunkmap.dumpChunks(bufferedwriter2); + //playerchunkmap.dumpChunks(bufferedwriter2); // Paper - rewrite chunk system } catch (Throwable throwable4) { if (bufferedwriter2 != null) { try { @@ -1920,7 +2097,7 @@ public class ServerLevel extends Level implements WorldGenLevel { BufferedWriter bufferedwriter3 = Files.newBufferedWriter(path2); try { - this.entityManager.dumpSections(bufferedwriter3); + //this.entityManager.dumpSections(bufferedwriter3); // Paper - rewrite chunk system } catch (Throwable throwable6) { if (bufferedwriter3 != null) { try { @@ -2062,7 +2239,7 @@ public class ServerLevel extends Level implements WorldGenLevel { @VisibleForTesting public String getWatchdogStats() { - return String.format(Locale.ROOT, "players: %s, entities: %s [%s], block_entities: %d [%s], block_ticks: %d, fluid_ticks: %d, chunk_source: %s", this.players.size(), this.entityManager.gatherStats(), ServerLevel.getTypeCount(this.entityManager.getEntityGetter().getAll(), (entity) -> { + return String.format(Locale.ROOT, "players: %s, entities: %s [%s], block_entities: %d [%s], block_ticks: %d, fluid_ticks: %d, chunk_source: %s", this.players.size(), this.moonrise$getEntityLookup().getDebugInfo(), ServerLevel.getTypeCount(this.moonrise$getEntityLookup().getAll(), (entity) -> { // Paper - rewrite chunk system return BuiltInRegistries.ENTITY_TYPE.getKey(entity.getType()).toString(); }), this.blockEntityTickers.size(), ServerLevel.getTypeCount(this.blockEntityTickers, TickingBlockEntity::getType), this.getBlockTicks().count(), this.getFluidTicks().count(), this.gatherChunkSourceStats()); } @@ -2092,15 +2269,25 @@ public class ServerLevel extends Level implements WorldGenLevel { @Override public LevelEntityGetter getEntities() { org.spigotmc.AsyncCatcher.catchOp("Chunk getEntities call"); // Spigot - return this.entityManager.getEntityGetter(); + return this.moonrise$getEntityLookup(); // Paper - rewrite chunk system } public void addLegacyChunkEntities(Stream entities) { - this.entityManager.addLegacyChunkEntities(entities); + // Paper start - add chunkpos param + this.addLegacyChunkEntities(entities, null); + } + public void addLegacyChunkEntities(Stream entities, ChunkPos chunkPos) { + // Paper end - add chunkpos param + this.moonrise$getEntityLookup().addLegacyChunkEntities(entities.toList(), chunkPos); // Paper - rewrite chunk system } public void addWorldGenChunkEntities(Stream entities) { - this.entityManager.addWorldGenChunkEntities(entities); + // Paper start - add chunkpos param + this.addWorldGenChunkEntities(entities, null); + } + public void addWorldGenChunkEntities(Stream entities, ChunkPos chunkPos) { + // Paper end - add chunkpos param + this.moonrise$getEntityLookup().addWorldGenChunkEntities(entities.toList(), chunkPos); // Paper - rewrite chunk system } public void startTickingChunk(LevelChunk chunk) { @@ -2120,34 +2307,47 @@ public class ServerLevel extends Level implements WorldGenLevel { @Override public void close() throws IOException { super.close(); - this.entityManager.close(); + // Paper - rewrite chunk system } @Override public String gatherChunkSourceStats() { String s = this.chunkSource.gatherStats(); - return "Chunks[S] W: " + s + " E: " + this.entityManager.gatherStats(); + return "Chunks[S] W: " + s + " E: " + this.moonrise$getEntityLookup().getDebugInfo(); // Paper - rewrite chunk system } public boolean areEntitiesLoaded(long chunkPos) { - return this.entityManager.areEntitiesLoaded(chunkPos); + return this.moonrise$getAnyChunkIfLoaded(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkX(chunkPos), ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkZ(chunkPos)) != null; // Paper - rewrite chunk system } private boolean isPositionTickingWithEntitiesLoaded(long chunkPos) { - return this.areEntitiesLoaded(chunkPos) && this.chunkSource.isPositionTicking(chunkPos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(chunkPos); + // isTicking implies the chunk is loaded, and the chunk is loaded now implies the entities are loaded + return chunkHolder != null && chunkHolder.isTickingReady(); + // Paper end - rewrite chunk system } public boolean isPositionEntityTicking(BlockPos pos) { - return this.entityManager.canPositionTick(pos) && this.chunkSource.chunkMap.getDistanceManager().inEntityTickingRange(ChunkPos.asLong(pos)); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(pos)); + return chunkHolder != null && chunkHolder.isEntityTickingReady(); + // Paper end - rewrite chunk system } public boolean isNaturalSpawningAllowed(BlockPos pos) { - return this.entityManager.canPositionTick(pos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(pos)); + return chunkHolder != null && chunkHolder.isEntityTickingReady(); + // Paper end - rewrite chunk system } public boolean isNaturalSpawningAllowed(ChunkPos pos) { - return this.entityManager.canPositionTick(pos); + // Paper start - rewrite chunk system + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.NewChunkHolder chunkHolder = this.moonrise$getChunkTaskScheduler().chunkHolderManager.getChunkHolder(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(pos)); + return chunkHolder != null && chunkHolder.isEntityTickingReady(); + // Paper end - rewrite chunk system } @Override @@ -2173,7 +2373,7 @@ public class ServerLevel extends Level implements WorldGenLevel { CrashReportCategory crashreportsystemdetails = super.fillReportDetails(report); crashreportsystemdetails.setDetail("Loaded entity count", () -> { - return String.valueOf(this.entityManager.count()); + return String.valueOf(this.moonrise$getEntityLookup().getEntityCount()); // Paper - rewrite chunk system }); return crashreportsystemdetails; } diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java index 3cbb59df34156479d24a8251f2b3acbb5e60dc2c..6b9354e3ac064daa3101e71d8e54e883f628f70c 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -199,7 +199,7 @@ import org.bukkit.event.player.PlayerToggleSneakEvent; import org.bukkit.inventory.MainHand; // CraftBukkit end -public class ServerPlayer extends net.minecraft.world.entity.player.Player { +public class ServerPlayer extends net.minecraft.world.entity.player.Player implements ca.spottedleaf.moonrise.patches.chunk_system.player.ChunkSystemServerPlayer { // Paper - rewrite chunk system private static final Logger LOGGER = LogUtils.getLogger(); private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_XZ = 32; @@ -297,6 +297,36 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player { public @Nullable String clientBrandName = null; // Paper - Brand support public org.bukkit.event.player.PlayerQuitEvent.QuitReason quitReason = null; // Paper - Add API for quit reason; there are a lot of changes to do if we change all methods leading to the event + // Paper start - rewrite chunk system + private ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.PlayerChunkLoaderData chunkLoader; + private final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder viewDistanceHolder = new ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder(); + + @Override + public final boolean moonrise$isRealPlayer() { + return this.isRealPlayer; + } + + @Override + public final void moonrise$setRealPlayer(final boolean real) { + this.isRealPlayer = real; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.PlayerChunkLoaderData moonrise$getChunkLoader() { + return this.chunkLoader; + } + + @Override + public final void moonrise$setChunkLoader(final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.PlayerChunkLoaderData loader) { + this.chunkLoader = loader; + } + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.ViewDistanceHolder moonrise$getViewDistanceHolder() { + return this.viewDistanceHolder; + } + // Paper end - rewrite chunk system + public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile, ClientInformation clientOptions) { super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile); this.chatVisibility = ChatVisiblity.FULL; diff --git a/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java b/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java index 63fae619e9b4ed49585f88ea7c167b0ee5efd859..4700c97487e176c670a3930564b621b4a6bf52bb 100644 --- a/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java +++ b/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java @@ -23,15 +23,49 @@ import net.minecraft.world.level.chunk.LightChunkGetter; import net.minecraft.world.level.lighting.LevelLightEngine; import org.slf4j.Logger; -public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCloseable { +public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCloseable, ca.spottedleaf.moonrise.patches.starlight.light.StarLightLightingProvider { // Paper - rewrite chunk system public static final int DEFAULT_BATCH_SIZE = 1000; private static final Logger LOGGER = LogUtils.getLogger(); - private final ProcessorMailbox taskMailbox; - private final ObjectList> lightTasks = new ObjectArrayList<>(); + // Paper - rewrite chunk sytem private final ChunkMap chunkMap; - private final ProcessorHandle> sorterMailbox; + // Paper - rewrite chunk sytem private final int taskPerBatch = 1000; - private final AtomicBoolean scheduled = new AtomicBoolean(); + // Paper - rewrite chunk sytem + + // Paper start - rewrite chunk system + private final java.util.concurrent.atomic.AtomicLong chunkWorkCounter = new java.util.concurrent.atomic.AtomicLong(); + private void queueTaskForSection(final int chunkX, final int chunkY, final int chunkZ, + final java.util.function.Supplier supplier) { + final ServerLevel world = (ServerLevel)this.starlight$getLightEngine().getWorld(); + + final ChunkAccess center = this.starlight$getLightEngine().getAnyChunkNow(chunkX, chunkZ); + if (center == null || !center.getPersistedStatus().isOrAfter(net.minecraft.world.level.chunk.status.ChunkStatus.LIGHT)) { + // do not accept updates in unlit chunks, unless we might be generating a chunk. thanks to the amazing + // chunk scheduling, we could be lighting and generating a chunk at the same time + return; + } + + final ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.ServerLightQueue.ServerChunkTasks scheduledTask = (ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.ServerLightQueue.ServerChunkTasks)supplier.get(); + + if (scheduledTask == null) { + // not scheduled + return; + } + + if (!scheduledTask.markTicketAdded()) { + // ticket already added + return; + } + + final Long ticketId = Long.valueOf(this.chunkWorkCounter.getAndIncrement()); + final ChunkPos pos = new ChunkPos(chunkX, chunkZ); + world.getChunkSource().addRegionTicket(ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.CHUNK_WORK_TICKET, pos, ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.REGION_LIGHT_TICKET_LEVEL, ticketId); + + scheduledTask.queueOrRunTask(() -> { + world.getChunkSource().removeRegionTicket(ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.CHUNK_WORK_TICKET, pos, ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface.REGION_LIGHT_TICKET_LEVEL, ticketId); + }); + } + // Paper end - rewrite chunk system public ThreadedLevelLightEngine( LightChunkGetter chunkProvider, @@ -42,8 +76,7 @@ public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCl ) { super(chunkProvider, true, hasBlockLight); this.chunkMap = chunkLoadingManager; - this.sorterMailbox = executor; - this.taskMailbox = processor; + // Paper - rewrite chunk sytem } @Override @@ -57,164 +90,73 @@ public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCl @Override public void checkBlock(BlockPos pos) { - BlockPos blockPos = pos.immutable(); - this.addTask( - SectionPos.blockToSectionCoord(pos.getX()), - SectionPos.blockToSectionCoord(pos.getZ()), - ThreadedLevelLightEngine.TaskType.PRE_UPDATE, - Util.name(() -> super.checkBlock(blockPos), () -> "checkBlock " + blockPos) - ); + // Paper start - rewrite chunk system + final BlockPos posCopy = pos.immutable(); + this.queueTaskForSection(posCopy.getX() >> 4, posCopy.getY() >> 4, posCopy.getZ() >> 4, () -> { + return ThreadedLevelLightEngine.this.starlight$getLightEngine().blockChange(posCopy); + }); + // Paper end - rewrite chunk system } protected void updateChunkStatus(ChunkPos pos) { - this.addTask(pos.x, pos.z, () -> 0, ThreadedLevelLightEngine.TaskType.PRE_UPDATE, Util.name(() -> { - super.retainData(pos, false); - super.setLightEnabled(pos, false); - - for (int i = this.getMinLightSection(); i < this.getMaxLightSection(); i++) { - super.queueSectionData(LightLayer.BLOCK, SectionPos.of(pos, i), null); - super.queueSectionData(LightLayer.SKY, SectionPos.of(pos, i), null); - } - - for (int j = this.levelHeightAccessor.getMinSection(); j < this.levelHeightAccessor.getMaxSection(); j++) { - super.updateSectionStatus(SectionPos.of(pos, j), true); - } - }, () -> "updateChunkStatus " + pos + " true")); + // Paper - rewrite chunk system } @Override public void updateSectionStatus(SectionPos pos, boolean notReady) { - this.addTask( - pos.x(), - pos.z(), - () -> 0, - ThreadedLevelLightEngine.TaskType.PRE_UPDATE, - Util.name(() -> super.updateSectionStatus(pos, notReady), () -> "updateSectionStatus " + pos + " " + notReady) - ); + // Paper start - rewrite chunk system + this.queueTaskForSection(pos.getX(), pos.getY(), pos.getZ(), () -> { + return ThreadedLevelLightEngine.this.starlight$getLightEngine().sectionChange(pos, notReady); + }); + // Paper end - rewrite chunk system } @Override public void propagateLightSources(ChunkPos chunkPos) { - this.addTask( - chunkPos.x, - chunkPos.z, - ThreadedLevelLightEngine.TaskType.PRE_UPDATE, - Util.name(() -> super.propagateLightSources(chunkPos), () -> "propagateLight " + chunkPos) - ); + // Paper - rewrite chunk system } @Override public void setLightEnabled(ChunkPos pos, boolean retainData) { - this.addTask( - pos.x, - pos.z, - ThreadedLevelLightEngine.TaskType.PRE_UPDATE, - Util.name(() -> super.setLightEnabled(pos, retainData), () -> "enableLight " + pos + " " + retainData) - ); + // Paper start - rewrite chunk system } @Override public void queueSectionData(LightLayer lightType, SectionPos pos, @Nullable DataLayer nibbles) { - this.addTask( - pos.x(), - pos.z(), - () -> 0, - ThreadedLevelLightEngine.TaskType.PRE_UPDATE, - Util.name(() -> super.queueSectionData(lightType, pos, nibbles), () -> "queueData " + pos) - ); + // Paper start - rewrite chunk system } private void addTask(int x, int z, ThreadedLevelLightEngine.TaskType stage, Runnable task) { - this.addTask(x, z, this.chunkMap.getChunkQueueLevel(ChunkPos.asLong(x, z)), stage, task); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } private void addTask(int x, int z, IntSupplier completedLevelSupplier, ThreadedLevelLightEngine.TaskType stage, Runnable task) { - this.sorterMailbox.tell(ChunkTaskPriorityQueueSorter.message(() -> { - this.lightTasks.add(Pair.of(stage, task)); - if (this.lightTasks.size() >= 1000) { - this.runUpdate(); - } - }, ChunkPos.asLong(x, z), completedLevelSupplier)); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } @Override public void retainData(ChunkPos pos, boolean retainData) { - this.addTask( - pos.x, pos.z, () -> 0, ThreadedLevelLightEngine.TaskType.PRE_UPDATE, Util.name(() -> super.retainData(pos, retainData), () -> "retainData " + pos) - ); + // Paper start - rewrite chunk system } public CompletableFuture initializeLight(ChunkAccess chunk, boolean bl) { - ChunkPos chunkPos = chunk.getPos(); - this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.PRE_UPDATE, Util.name(() -> { - LevelChunkSection[] levelChunkSections = chunk.getSections(); - - for (int i = 0; i < chunk.getSectionsCount(); i++) { - LevelChunkSection levelChunkSection = levelChunkSections[i]; - if (!levelChunkSection.hasOnlyAir()) { - int j = this.levelHeightAccessor.getSectionYFromSectionIndex(i); - super.updateSectionStatus(SectionPos.of(chunkPos, j), false); - } - } - }, () -> "initializeLight: " + chunkPos)); - return CompletableFuture.supplyAsync(() -> { - super.setLightEnabled(chunkPos, bl); - super.retainData(chunkPos, false); - return chunk; - }, task -> this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.POST_UPDATE, task)); + return CompletableFuture.completedFuture(chunk); // Paper start - rewrite chunk system } public CompletableFuture lightChunk(ChunkAccess chunk, boolean excludeBlocks) { - ChunkPos chunkPos = chunk.getPos(); - chunk.setLightCorrect(false); - this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.PRE_UPDATE, Util.name(() -> { - if (!excludeBlocks) { - super.propagateLightSources(chunkPos); - } - }, () -> "lightChunk " + chunkPos + " " + excludeBlocks)); - return CompletableFuture.supplyAsync(() -> { - chunk.setLightCorrect(true); - return chunk; - }, task -> this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.POST_UPDATE, task)); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void tryScheduleUpdate() { - if ((!this.lightTasks.isEmpty() || super.hasLightWork()) && this.scheduled.compareAndSet(false, true)) { - this.taskMailbox.tell(() -> { - this.runUpdate(); - this.scheduled.set(false); - }); - } + // Paper - rewrite chunk system } private void runUpdate() { - int i = Math.min(this.lightTasks.size(), 1000); - ObjectListIterator> objectListIterator = this.lightTasks.iterator(); - - int j; - for (j = 0; objectListIterator.hasNext() && j < i; j++) { - Pair pair = objectListIterator.next(); - if (pair.getFirst() == ThreadedLevelLightEngine.TaskType.PRE_UPDATE) { - pair.getSecond().run(); - } - } - - objectListIterator.back(j); - super.runLightUpdates(); - - for (int var5 = 0; objectListIterator.hasNext() && var5 < i; var5++) { - Pair pair2 = objectListIterator.next(); - if (pair2.getFirst() == ThreadedLevelLightEngine.TaskType.POST_UPDATE) { - pair2.getSecond().run(); - } - - objectListIterator.remove(); - } + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public CompletableFuture waitForPendingTasks(int x, int z) { - return CompletableFuture.runAsync(() -> { - }, callback -> this.addTask(x, z, ThreadedLevelLightEngine.TaskType.POST_UPDATE, callback)); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } static enum TaskType { diff --git a/src/main/java/net/minecraft/server/level/Ticket.java b/src/main/java/net/minecraft/server/level/Ticket.java index eba83b085435150e5954fd5d41dda9ce1d0601ad..daf543b51d8875b374688957ae4bc466f5512bcd 100644 --- a/src/main/java/net/minecraft/server/level/Ticket.java +++ b/src/main/java/net/minecraft/server/level/Ticket.java @@ -2,13 +2,25 @@ package net.minecraft.server.level; import java.util.Objects; -public final class Ticket implements Comparable> { +public final class Ticket implements Comparable>, ca.spottedleaf.moonrise.patches.chunk_system.ticket.ChunkSystemTicket { // Paper - rewrite chunk system private final TicketType type; private final int ticketLevel; public final T key; - private long createdTick; + // Paper start - rewrite chunk system + private long removeDelay; - protected Ticket(TicketType type, int level, T argument) { + @Override + public final long moonrise$getRemoveDelay() { + return this.removeDelay; + } + + @Override + public final void moonrise$setRemoveDelay(final long removeDelay) { + this.removeDelay = removeDelay; + } + // Paper end - rewerite chunk system + + public Ticket(TicketType type, int level, T argument) { // Paper - public this.type = type; this.ticketLevel = level; this.key = argument; @@ -41,7 +53,7 @@ public final class Ticket implements Comparable> { @Override public String toString() { - return "Ticket[" + this.type + " " + this.ticketLevel + " (" + this.key + ")] at " + this.createdTick; + return "Ticket[" + this.type + " " + this.ticketLevel + " (" + this.key + ")] to die in " + this.removeDelay; // Paper - rewrite chunk system } public TicketType getType() { @@ -53,11 +65,10 @@ public final class Ticket implements Comparable> { } protected void setCreatedTick(long tickCreated) { - this.createdTick = tickCreated; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } protected boolean timedOut(long currentTick) { - long l = this.type.timeout(); - return l != 0L && currentTick - this.createdTick > l; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } } diff --git a/src/main/java/net/minecraft/server/level/WorldGenRegion.java b/src/main/java/net/minecraft/server/level/WorldGenRegion.java index b26a4a38144ec1b171db911bbf949b53ed35708f..5a8a33638ceb1d980ffc3e6dd86e7eb11dfd9375 100644 --- a/src/main/java/net/minecraft/server/level/WorldGenRegion.java +++ b/src/main/java/net/minecraft/server/level/WorldGenRegion.java @@ -85,6 +85,36 @@ public class WorldGenRegion implements WorldGenLevel { private final AtomicLong subTickCount = new AtomicLong(); private static final ResourceLocation WORLDGEN_REGION_RANDOM = ResourceLocation.withDefaultNamespace("worldgen_region_random"); + // Paper start - rewrite chunk system + /** + * During feature generation, light data is not initialised and will always return 15 in Starlight. Vanilla + * can possibly return 0 if partially initialised, which allows some mushroom blocks to generate. + * In general, the brightness value from the light engine should not be used until the chunk is ready. To emulate + * Vanilla behavior better, we return 0 as the brightness during world gen unless the target chunk is finished + * lighting. + */ + @Override + public int getBrightness(final net.minecraft.world.level.LightLayer lightLayer, final BlockPos blockPos) { + final ChunkAccess chunk = this.getChunk(blockPos.getX() >> 4, blockPos.getZ() >> 4); + if (!chunk.isLightCorrect()) { + return 0; + } + return this.getLightEngine().getLayerListener(lightLayer).getLightValue(blockPos); + } + + /** + * See above + */ + @Override + public int getRawBrightness(final BlockPos blockPos, final int subtract) { + final ChunkAccess chunk = this.getChunk(blockPos.getX() >> 4, blockPos.getZ() >> 4); + if (!chunk.isLightCorrect()) { + return 0; + } + return this.getLightEngine().getRawBrightness(blockPos, subtract); + } + // Paper end - rewrite chunk system + public WorldGenRegion(ServerLevel world, StaticCache2D chunks, ChunkStep generationStep, ChunkAccess centerPos) { this.generatingStep = generationStep; this.cache = chunks; diff --git a/src/main/java/net/minecraft/server/network/PlayerChunkSender.java b/src/main/java/net/minecraft/server/network/PlayerChunkSender.java index cdd66e6ce96e2613afe7f06ca8da3cfaa6704b2d..32634e45ac8433648e49e47e20081e15ad41ff15 100644 --- a/src/main/java/net/minecraft/server/network/PlayerChunkSender.java +++ b/src/main/java/net/minecraft/server/network/PlayerChunkSender.java @@ -78,7 +78,7 @@ public class PlayerChunkSender { } } - private static void sendChunk(ServerGamePacketListenerImpl handler, ServerLevel world, LevelChunk chunk) { + public static void sendChunk(ServerGamePacketListenerImpl handler, ServerLevel world, LevelChunk chunk) { // Paper - public handler.send(new ClientboundLevelChunkWithLightPacket(chunk, world.getLightEngine(), null, null)); // Paper start - PlayerChunkLoadEvent if (io.papermc.paper.event.packet.PlayerChunkLoadEvent.getHandlerList().getRegisteredListeners().length > 0) { diff --git a/src/main/java/net/minecraft/util/SortedArraySet.java b/src/main/java/net/minecraft/util/SortedArraySet.java index ea72dcb064a35bc6245bc5c94d592efedd8faf41..87ee8e51dfa7657ed7d83fcbceef48bf857043e1 100644 --- a/src/main/java/net/minecraft/util/SortedArraySet.java +++ b/src/main/java/net/minecraft/util/SortedArraySet.java @@ -8,12 +8,89 @@ import java.util.Iterator; import java.util.NoSuchElementException; import javax.annotation.Nullable; -public class SortedArraySet extends AbstractSet { +public class SortedArraySet extends AbstractSet implements ca.spottedleaf.moonrise.patches.chunk_system.util.ChunkSystemSortedArraySet { // Paper - rewrite chunk system private static final int DEFAULT_INITIAL_CAPACITY = 10; private final Comparator comparator; T[] contents; int size; + // Paper start - rewrite chunk system + @Override + public final boolean removeIf(final java.util.function.Predicate filter) { + // prev. impl used an iterator, which could be n^2 and creates garbage + int i = 0; + final int len = this.size; + final T[] backingArray = this.contents; + + for (;;) { + if (i >= len) { + return false; + } + if (!filter.test(backingArray[i])) { + ++i; + continue; + } + break; + } + + // we only want to write back to backingArray if we really need to + + int lastIndex = i; // this is where new elements are shifted to + + for (; i < len; ++i) { + final T curr = backingArray[i]; + if (!filter.test(curr)) { // if test throws we're screwed + backingArray[lastIndex++] = curr; + } + } + + // cleanup end + Arrays.fill(backingArray, lastIndex, len, null); + this.size = lastIndex; + return true; + } + + @Override + public final T moonrise$replace(final T object) { + final int index = this.findIndex(object); + if (index >= 0) { + final T old = this.contents[index]; + this.contents[index] = object; + return old; + } else { + this.addInternal(object, getInsertionPosition(index)); + return object; + } + } + + @Override + public final T moonrise$removeAndGet(final T object) { + int i = this.findIndex(object); + if (i >= 0) { + final T ret = this.contents[i]; + this.removeInternal(i); + return ret; + } else { + return null; + } + } + + @Override + public final SortedArraySet moonrise$copy() { + final SortedArraySet ret = SortedArraySet.create(this.comparator, 0); + + ret.size = this.size; + ret.contents = Arrays.copyOf(this.contents, this.size); + + return ret; + } + + @Override + public Object[] moonrise$copyBackingArray() { + return this.contents.clone(); + } + // Paper end - rewrite chunk system + private SortedArraySet(int initialCapacity, Comparator comparator) { this.comparator = comparator; if (initialCapacity < 0) { diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index 8b6a905f398f5aadd0801ea50d49506a002d4ff5..138616b36b5e4d43b786876efc147d2648af1461 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -167,7 +167,7 @@ import org.bukkit.event.player.PlayerTeleportEvent; import org.bukkit.plugin.PluginManager; // CraftBukkit end -public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess, CommandSource, ScoreHolder { +public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess, CommandSource, ScoreHolder, ca.spottedleaf.moonrise.patches.chunk_system.entity.ChunkSystemEntity { // Paper - rewrite chunk system // CraftBukkit start private static final int CURRENT_LEVEL = 2; @@ -456,6 +456,77 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess return this.dimensions.makeBoundingBox(x, y, z); } // Paper end + // Paper start - rewrite chunk system + private final boolean isHardColliding = this.moonrise$isHardCollidingUncached(); + private net.minecraft.server.level.FullChunkStatus chunkStatus; + private int sectionX = Integer.MIN_VALUE; + private int sectionY = Integer.MIN_VALUE; + private int sectionZ = Integer.MIN_VALUE; + private boolean updatingSectionStatus; + + @Override + public final boolean moonrise$isHardColliding() { + return this.isHardColliding; + } + + @Override + public final net.minecraft.server.level.FullChunkStatus moonrise$getChunkStatus() { + return this.chunkStatus; + } + + @Override + public final void moonrise$setChunkStatus(final net.minecraft.server.level.FullChunkStatus status) { + this.chunkStatus = status; + } + + @Override + public final int moonrise$getSectionX() { + return this.sectionX; + } + + @Override + public final void moonrise$setSectionX(final int x) { + this.sectionX = x; + } + + @Override + public final int moonrise$getSectionY() { + return this.sectionY; + } + + @Override + public final void moonrise$setSectionY(final int y) { + this.sectionY = y; + } + + @Override + public final int moonrise$getSectionZ() { + return this.sectionZ; + } + + @Override + public final void moonrise$setSectionZ(final int z) { + this.sectionZ = z; + } + + @Override + public final boolean moonrise$isUpdatingSectionStatus() { + return this.updatingSectionStatus; + } + + @Override + public final void moonrise$setUpdatingSectionStatus(final boolean to) { + this.updatingSectionStatus = to; + } + + @Override + public final boolean moonrise$hasAnyPlayerPassengers() { + if (this.passengers.isEmpty()) { + return false; + } + return this.getIndirectPassengersStream().anyMatch((entity) -> entity instanceof Player); + } + // Paper end - rewrite chunk system public Entity(EntityType type, Level world) { this.id = Entity.ENTITY_COUNTER.incrementAndGet(); @@ -4397,6 +4468,15 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess this.setPosRaw(x, y, z, false); } public final void setPosRaw(double x, double y, double z, boolean forceBoundingBoxUpdate) { + // Paper start - rewrite chunk system + if (this.updatingSectionStatus) { + LOGGER.error( + "Refusing to update position for entity " + this + " to position " + new Vec3(x, y, z) + + " since it is processing a section status update", new Throwable() + ); + return; + } + // Paper end - rewrite chunk system if (!checkPosition(this, x, y, z)) { return; } @@ -4528,6 +4608,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess @Override public final void setRemoved(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) { + // Paper start - rewrite chunk system + if (!((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this.level).moonrise$getEntityLookup().canRemoveEntity((Entity)(Object)this)) { + LOGGER.warn("Entity " + this + " is currently prevented from being removed from the world since it is processing section status updates", new Throwable()); + return; + } + // Paper end - rewrite chunk system CraftEventFactory.callEntityRemoveEvent(this, cause); // CraftBukkit end final boolean alreadyRemoved = this.removalReason != null; // Paper - Folia schedulers @@ -4539,7 +4625,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess this.stopRiding(); } - this.getPassengers().forEach(Entity::stopRiding); + if (this.removalReason != Entity.RemovalReason.UNLOADED_TO_CHUNK) { this.getPassengers().forEach(Entity::stopRiding); } // Paper - rewrite chunk system this.levelCallback.onRemove(entity_removalreason); // Paper start - Folia schedulers if (!(this instanceof ServerPlayer) && entity_removalreason != RemovalReason.CHANGED_DIMENSION && !alreadyRemoved) { @@ -4570,7 +4656,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess @Override public boolean shouldBeSaved() { - return this.removalReason != null && !this.removalReason.shouldSave() ? false : (this.isPassenger() ? false : !this.isVehicle() || !this.hasExactlyOnePlayerPassenger()); + return this.removalReason != null && !this.removalReason.shouldSave() ? false : (this.isPassenger() ? false : !this.isVehicle() || !((ca.spottedleaf.moonrise.patches.chunk_system.entity.ChunkSystemEntity)this).moonrise$hasAnyPlayerPassengers()); // Paper - rewrite chunk system } @Override diff --git a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java index fb63036d26d2b5370472b741b23bebd71e247463..274ddf479d38495d84838f9cd73c13d2841c3b44 100644 --- a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java +++ b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java @@ -38,12 +38,153 @@ import net.minecraft.world.level.chunk.storage.RegionStorageInfo; import net.minecraft.world.level.chunk.storage.SectionStorage; import net.minecraft.world.level.chunk.storage.SimpleRegionStorage; -public class PoiManager extends SectionStorage { +public class PoiManager extends SectionStorage implements ca.spottedleaf.moonrise.patches.chunk_system.level.poi.ChunkSystemPoiManager { // Paper - rewrite chunk system public static final int MAX_VILLAGE_DISTANCE = 6; public static final int VILLAGE_SECTION_SIZE = 1; private final PoiManager.DistanceTracker distanceTracker; private final LongSet loadedChunks = new LongOpenHashSet(); + // Paper start - rewrite chunk system + private final net.minecraft.server.level.ServerLevel world; + + // the vanilla tracker needs to be replaced because it does not support level removes, and we need level removes + // to support poi unloading + private final ca.spottedleaf.moonrise.common.misc.Delayed26WayDistancePropagator3D villageDistanceTracker = new ca.spottedleaf.moonrise.common.misc.Delayed26WayDistancePropagator3D(); + + private static final int POI_DATA_SOURCE = 7; + + private static int convertBetweenLevels(final int level) { + return POI_DATA_SOURCE - level; + } + + private void updateDistanceTracking(long section) { + if (this.isVillageCenter(section)) { + this.villageDistanceTracker.setSource(section, POI_DATA_SOURCE); + } else { + this.villageDistanceTracker.removeSource(section); + } + } + + @Override + public Optional get(final long pos) { + final int chunkX = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionX(pos); + final int chunkY = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionY(pos); + final int chunkZ = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionZ(pos); + + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Accessing poi chunk off-main"); + + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager manager = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager; + final ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk ret = manager.getPoiChunkIfLoaded(chunkX, chunkZ, true); + + return ret == null ? Optional.empty() : ret.getSectionForVanilla(chunkY); + } + + @Override + public Optional getOrLoad(final long pos) { + final int chunkX = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionX(pos); + final int chunkY = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionY(pos); + final int chunkZ = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionZ(pos); + + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Accessing poi chunk off-main"); + + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager manager = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager; + + if (chunkY >= ca.spottedleaf.moonrise.common.util.WorldUtil.getMinSection(this.world) && chunkY <= ca.spottedleaf.moonrise.common.util.WorldUtil.getMaxSection(this.world)) { + final ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk ret = manager.getPoiChunkIfLoaded(chunkX, chunkZ, true); + if (ret != null) { + return ret.getSectionForVanilla(chunkY); + } else { + return manager.loadPoiChunk(chunkX, chunkZ).getSectionForVanilla(chunkY); + } + } + // retain vanilla behavior: do not load section if out of bounds! + return Optional.empty(); + } + + @Override + protected PoiSection getOrCreate(final long pos) { + final int chunkX = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionX(pos); + final int chunkY = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionY(pos); + final int chunkZ = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionZ(pos); + + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Accessing poi chunk off-main"); + + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager manager = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager; + + final ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk ret = manager.getPoiChunkIfLoaded(chunkX, chunkZ, true); + if (ret != null) { + return ret.getOrCreateSection(chunkY); + } else { + return manager.loadPoiChunk(chunkX, chunkZ).getOrCreateSection(chunkY); + } + } + + @Override + public final net.minecraft.server.level.ServerLevel moonrise$getWorld() { + return this.world; + } + + @Override + public final void moonrise$onUnload(final long coordinate) { // Paper - rewrite chunk system + final int chunkX = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkX(coordinate); + final int chunkZ = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkZ(coordinate); + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Unloading poi chunk off-main"); + for (int section = this.levelHeightAccessor.getMinSection(); section < this.levelHeightAccessor.getMaxSection(); ++section) { + final long sectionPos = SectionPos.asLong(chunkX, section, chunkZ); + this.updateDistanceTracking(sectionPos); + } + } + + @Override + public final void moonrise$loadInPoiChunk(final ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk poiChunk) { + final int chunkX = poiChunk.chunkX; + final int chunkZ = poiChunk.chunkZ; + io.papermc.paper.util.TickThread.ensureTickThread(this.world, chunkX, chunkZ, "Loading poi chunk off-main"); + for (int sectionY = this.levelHeightAccessor.getMinSection(); sectionY < this.levelHeightAccessor.getMaxSection(); ++sectionY) { + final PoiSection section = poiChunk.getSection(sectionY); + if (section != null && !((ca.spottedleaf.moonrise.patches.chunk_system.level.poi.ChunkSystemPoiSection)section).moonrise$isEmpty()) { + this.onSectionLoad(SectionPos.asLong(chunkX, sectionY, chunkZ)); + } + } + } + + @Override + public final void moonrise$checkConsistency(final net.minecraft.world.level.chunk.ChunkAccess chunk) { + final int chunkX = chunk.getPos().x; + final int chunkZ = chunk.getPos().z; + + final int minY = ca.spottedleaf.moonrise.common.util.WorldUtil.getMinSection(chunk); + final int maxY = ca.spottedleaf.moonrise.common.util.WorldUtil.getMaxSection(chunk); + final LevelChunkSection[] sections = chunk.getSections(); + for (int section = minY; section <= maxY; ++section) { + this.checkConsistencyWithBlocks(SectionPos.of(chunkX, section, chunkZ), sections[section - minY]); + } + } + + @Override + public final void moonrise$close() throws java.io.IOException {} + + @Override + public final net.minecraft.nbt.CompoundTag moonrise$read(final int chunkX, final int chunkZ) throws java.io.IOException { + if (!ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.isRegionFileThread()) { + return ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.loadData( + this.world, chunkX, chunkZ, ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.RegionFileType.POI_DATA, + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.getIOBlockingPriorityForCurrentThread() + ); + } + return this.moonrise$getRegionStorage().read(new ChunkPos(chunkX, chunkZ)); + } + + @Override + public final void moonrise$write(final int chunkX, final int chunkZ, final net.minecraft.nbt.CompoundTag data) throws java.io.IOException { + if (!ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.isRegionFileThread()) { + ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.scheduleSave(this.world, chunkX, chunkZ, data, ca.spottedleaf.moonrise.patches.chunk_system.io.RegionFileIOThread.RegionFileType.POI_DATA); + return; + } + this.moonrise$getRegionStorage().write(new ChunkPos(chunkX, chunkZ), data); + } + // Paper end - rewrite chunk system + public PoiManager( RegionStorageInfo storageKey, Path directory, @@ -62,6 +203,7 @@ public class PoiManager extends SectionStorage { world ); this.distanceTracker = new PoiManager.DistanceTracker(); + this.world = (net.minecraft.server.level.ServerLevel)world; // Paper - rewrite chunk system } public void add(BlockPos pos, Holder type) { @@ -195,8 +337,8 @@ public class PoiManager extends SectionStorage { } public int sectionsToVillage(SectionPos pos) { - this.distanceTracker.runAllUpdates(); - return this.distanceTracker.getLevel(pos.asLong()); + this.villageDistanceTracker.propagateUpdates(); // Paper - rewrite chunk system + return convertBetweenLevels(this.villageDistanceTracker.getLevel(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionKey(pos))); // Paper - rewrite chunk system } boolean isVillageCenter(long pos) { @@ -210,19 +352,26 @@ public class PoiManager extends SectionStorage { @Override public void tick(BooleanSupplier shouldKeepTicking) { - super.tick(shouldKeepTicking); - this.distanceTracker.runAllUpdates(); + this.villageDistanceTracker.propagateUpdates(); // Paper - rewrite chunk system } @Override - protected void setDirty(long pos) { - super.setDirty(pos); - this.distanceTracker.update(pos, this.distanceTracker.getLevelFromSource(pos), false); + public void setDirty(long pos) { // Paper - public + // Paper start - rewrite chunk system + final int chunkX = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionX(pos); + final int chunkZ = ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionZ(pos); + final ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkHolderManager manager = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.world).moonrise$getChunkTaskScheduler().chunkHolderManager; + final ca.spottedleaf.moonrise.patches.chunk_system.level.poi.PoiChunk chunk = manager.getPoiChunkIfLoaded(chunkX, chunkZ, false); + if (chunk != null) { + chunk.setDirty(true); + } + this.updateDistanceTracking(pos); + // Paper end - rewrite chunk system } @Override protected void onSectionLoad(long pos) { - this.distanceTracker.update(pos, this.distanceTracker.getLevelFromSource(pos), false); + this.updateDistanceTracking(pos); // Paper - rewrite chunk system } public void checkConsistencyWithBlocks(SectionPos sectionPos, LevelChunkSection chunkSection) { @@ -259,7 +408,7 @@ public class PoiManager extends SectionStorage { .map(sectionPos -> Pair.of(sectionPos, this.getOrLoad(sectionPos.asLong()))) .filter(pair -> !pair.getSecond().map(PoiSection::isValid).orElse(false)) .map(pair -> pair.getFirst().chunk()) - .filter(chunkPos -> this.loadedChunks.add(chunkPos.toLong())) + // Paper - rewrite chunk system .forEach(chunkPos -> world.getChunk(chunkPos.x, chunkPos.z, ChunkStatus.EMPTY)); } diff --git a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiSection.java b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiSection.java index 971fb29a2c3dc713cb8ab1d2eed054cc16f9c93c..a6c0e89cb645693034f8e90ac2de8f2da457453c 100644 --- a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiSection.java +++ b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiSection.java @@ -23,7 +23,7 @@ import net.minecraft.core.SectionPos; import net.minecraft.util.VisibleForDebug; import org.slf4j.Logger; -public class PoiSection { +public class PoiSection implements ca.spottedleaf.moonrise.patches.chunk_system.level.poi.ChunkSystemPoiSection { // Paper - rewrite chunk system private static final Logger LOGGER = LogUtils.getLogger(); private final Short2ObjectMap records = new Short2ObjectOpenHashMap<>(); private final Map, Set> byType = Maps.newHashMap(); @@ -42,6 +42,20 @@ public class PoiSection { .orElseGet(Util.prefix("Failed to read POI section: ", LOGGER::error), () -> new PoiSection(updateListener, false, ImmutableList.of())); } + // Paper start - rewrite chunk system + private final Optional noAllocOptional = Optional.of((PoiSection)(Object)this);; + + @Override + public final boolean moonrise$isEmpty() { + return this.isValid && this.records.isEmpty() && this.byType.isEmpty(); + } + + @Override + public final Optional moonrise$asOptional() { + return this.noAllocOptional; + } + // Paper end - rewrite chunk system + public PoiSection(Runnable updateListener) { this(updateListener, true, ImmutableList.of()); } diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java index bd20bea7f76a7307f1698fb2dfef37125032d166..70c2017400168d4fef3c14462798edcfed58d4bf 100644 --- a/src/main/java/net/minecraft/world/level/EntityGetter.java +++ b/src/main/java/net/minecraft/world/level/EntityGetter.java @@ -18,7 +18,7 @@ import net.minecraft.world.phys.shapes.BooleanOp; import net.minecraft.world.phys.shapes.Shapes; import net.minecraft.world.phys.shapes.VoxelShape; -public interface EntityGetter { +public interface EntityGetter extends ca.spottedleaf.moonrise.patches.chunk_system.world.ChunkSystemEntityGetter { // Paper - rewrite chunk system List getEntities(@Nullable Entity except, AABB box, Predicate predicate); List getEntities(EntityTypeTest filter, AABB box, Predicate predicate); @@ -33,6 +33,13 @@ public interface EntityGetter { return this.getEntities(except, box, EntitySelector.NO_SPECTATORS); } + // Paper start - rewrite chunk system + @Override + default List moonrise$getHardCollidingEntities(final Entity entity, final AABB box, final Predicate predicate) { + return this.getEntities(entity, box, predicate); + } + // Paper end - rewrite chunk system + default boolean isUnobstructed(@Nullable Entity except, VoxelShape shape) { if (shape.isEmpty()) { return true; diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java index 6f822e9487bef5b9766d5ae86ebbd687e4eadc42..77c6613c39e3b266944e28cf2627483d9f32c511 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -102,7 +102,7 @@ import org.bukkit.entity.SpawnCategory; import org.bukkit.event.block.BlockPhysicsEvent; // CraftBukkit end -public abstract class Level implements LevelAccessor, AutoCloseable { +public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel, ca.spottedleaf.moonrise.patches.chunk_system.world.ChunkSystemEntityGetter { // Paper - rewrite chunk system public static final Codec> RESOURCE_KEY_CODEC = ResourceKey.codec(Registries.DIMENSION); public static final ResourceKey OVERWORLD = ResourceKey.create(Registries.DIMENSION, ResourceLocation.withDefaultNamespace("overworld")); @@ -199,6 +199,58 @@ public abstract class Level implements LevelAccessor, AutoCloseable { public abstract ResourceKey getTypeKey(); + // Paper start - rewrite chunk system + private ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup entityLookup; + + @Override + public final ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup moonrise$getEntityLookup() { + return this.entityLookup; + } + + @Override + public void moonrise$setEntityLookup(final ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup entityLookup) { + if (this.entityLookup != null && !(this.entityLookup instanceof ca.spottedleaf.moonrise.patches.chunk_system.level.entity.dfl.DefaultEntityLookup)) { + throw new IllegalStateException("Entity lookup already initialised"); + } + this.entityLookup = entityLookup; + } + + @Override + public final List getEntitiesOfClass(final Class entityClass, final AABB boundingBox, final Predicate predicate) { + this.getProfiler().incrementCounter("getEntities"); + final List ret = new java.util.ArrayList<>(); + + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(entityClass, null, boundingBox, ret, predicate); + + return ret; + } + + @Override + public final List moonrise$getHardCollidingEntities(final Entity entity, final AABB box, final Predicate predicate) { + this.getProfiler().incrementCounter("getEntities"); + final List ret = new java.util.ArrayList<>(); + + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getHardCollidingEntities(entity, box, ret, predicate); + + return ret; + } + + @Override + public LevelChunk moonrise$getFullChunkIfLoaded(final int chunkX, final int chunkZ) { + return this.getChunkSource().getChunk(chunkX, chunkZ, false); + } + + @Override + public ChunkAccess moonrise$getAnyChunkIfLoaded(final int chunkX, final int chunkZ) { + return this.getChunkSource().getChunk(chunkX, chunkZ, ChunkStatus.EMPTY, false); + } + + @Override + public ChunkAccess moonrise$getSpecificChunkIfLoaded(final int chunkX, final int chunkZ, final ChunkStatus leastStatus) { + return this.getChunkSource().getChunk(chunkX, chunkZ, leastStatus, false); + } + // Paper end - rewrite chunk system + protected Level(WritableLevelData worlddatamutable, ResourceKey resourcekey, RegistryAccess iregistrycustom, Holder holder, Supplier supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function paperWorldConfigCreator) { // Paper - create paper world config this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot this.paperConfig = paperWorldConfigCreator.apply(this.spigotConfig); // Paper - create paper world config @@ -281,6 +333,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable { this.timings = new co.aikar.timings.WorldTimingsHandler(this); // Paper - code below can generate new world and access timings this.entityLimiter = new org.spigotmc.TickLimiter(this.spigotConfig.entityMaxTickTime); this.tileLimiter = new org.spigotmc.TickLimiter(this.spigotConfig.tileMaxTickTime); + this.entityLookup = new ca.spottedleaf.moonrise.patches.chunk_system.level.entity.dfl.DefaultEntityLookup(this); // Paper - rewrite chunk system } // Paper start - Cancel hit for vanished players @@ -551,7 +604,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable { this.setBlocksDirty(blockposition, iblockdata1, iblockdata2); } - if ((i & 2) != 0 && (!this.isClientSide || (i & 4) == 0) && (this.isClientSide || chunk == null || (chunk.getFullStatus() != null && chunk.getFullStatus().isOrAfter(FullChunkStatus.BLOCK_TICKING)))) { // allow chunk to be null here as chunk.isReady() is false when we send our notification during block placement + if ((i & 2) != 0 && (!this.isClientSide || (i & 4) == 0) && (this.isClientSide || chunk == null || (chunk.getFullStatus() != null && chunk.getFullStatus().isOrAfter(FullChunkStatus.FULL)))) { // allow chunk to be null here as chunk.isReady() is false when we send our notification during block placement // Paper - rewrite chunk system - change from ticking to full this.sendBlockUpdated(blockposition, iblockdata1, iblockdata, i); } @@ -951,7 +1004,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable { } // Paper end - Perf: Optimize capturedTileEntities lookup // CraftBukkit end - return this.isOutsideBuildHeight(blockposition) ? null : (!this.isClientSide && Thread.currentThread() != this.thread ? null : this.getChunkAt(blockposition).getBlockEntity(blockposition, LevelChunk.EntityCreationType.IMMEDIATE)); + return this.isOutsideBuildHeight(blockposition) ? null : (!this.isClientSide && !io.papermc.paper.util.TickThread.isTickThread() ? null : this.getChunkAt(blockposition).getBlockEntity(blockposition, LevelChunk.EntityCreationType.IMMEDIATE)); // Paper - rewrite chunk system } public void setBlockEntity(BlockEntity blockEntity) { @@ -1041,28 +1094,13 @@ public abstract class Level implements LevelAccessor, AutoCloseable { @Override public List getEntities(@Nullable Entity except, AABB box, Predicate predicate) { this.getProfiler().incrementCounter("getEntities"); - List list = Lists.newArrayList(); - - this.getEntities().get(box, (entity1) -> { - if (entity1 != except && predicate.test(entity1)) { - list.add(entity1); - } + // Paper start - rewrite chunk system + final List ret = new java.util.ArrayList<>(); - if (entity1 instanceof EnderDragon) { - EnderDragonPart[] aentitycomplexpart = ((EnderDragon) entity1).getSubEntities(); - int i = aentitycomplexpart.length; - - for (int j = 0; j < i; ++j) { - EnderDragonPart entitycomplexpart = aentitycomplexpart[j]; - - if (entity1 != except && predicate.test(entitycomplexpart)) { - list.add(entitycomplexpart); - } - } - } + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(except, box, ret, predicate); - }); - return list; + return ret; + // Paper end - rewrite chunk system } @Override @@ -1077,36 +1115,77 @@ public abstract class Level implements LevelAccessor, AutoCloseable { this.getEntities(filter, box, predicate, result, Integer.MAX_VALUE); } - public void getEntities(EntityTypeTest filter, AABB box, Predicate predicate, List result, int limit) { + // Paper start - rewrite chunk system + public void getEntities(final EntityTypeTest entityTypeTest, + final AABB boundingBox, final Predicate predicate, + final List into, final int maxCount) { this.getProfiler().incrementCounter("getEntities"); - this.getEntities().get(filter, box, (entity) -> { - if (predicate.test(entity)) { - result.add(entity); - if (result.size() >= limit) { - return AbortableIterationConsumer.Continuation.ABORT; - } + + if (entityTypeTest instanceof net.minecraft.world.entity.EntityType byType) { + if (maxCount != Integer.MAX_VALUE) { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(byType, boundingBox, into, predicate, maxCount); + return; + } else { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(byType, boundingBox, into, predicate); + return; } + } - if (entity instanceof EnderDragon entityenderdragon) { - EnderDragonPart[] aentitycomplexpart = entityenderdragon.getSubEntities(); - int j = aentitycomplexpart.length; + if (entityTypeTest == null) { + if (maxCount != Integer.MAX_VALUE) { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities((Entity)null, boundingBox, (List)into, (Predicate)predicate, maxCount); + return; + } else { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities((Entity)null, boundingBox, (List)into, (Predicate)predicate); + return; + } + } - for (int k = 0; k < j; ++k) { - EnderDragonPart entitycomplexpart = aentitycomplexpart[k]; - T t0 = filter.tryCast(entitycomplexpart); // CraftBukkit - decompile error + final Class base = entityTypeTest.getBaseClass(); - if (t0 != null && predicate.test(t0)) { - result.add(t0); - if (result.size() >= limit) { - return AbortableIterationConsumer.Continuation.ABORT; - } - } + final Predicate modifiedPredicate; + if (predicate == null) { + modifiedPredicate = (final T obj) -> { + return entityTypeTest.tryCast(obj) != null; + }; + } else { + modifiedPredicate = (final Entity obj) -> { + final T casted = entityTypeTest.tryCast(obj); + if (casted == null) { + return false; } + + return predicate.test(casted); + }; + } + + if (base == null || base == Entity.class) { + if (maxCount != Integer.MAX_VALUE) { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities((Entity)null, boundingBox, (List)into, (Predicate)modifiedPredicate, maxCount); + return; + } else { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities((Entity)null, boundingBox, (List)into, (Predicate)modifiedPredicate); + return; } + } else { + if (maxCount != Integer.MAX_VALUE) { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(base, null, boundingBox, (List)into, (Predicate)modifiedPredicate, maxCount); + return; + } else { + ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevel)this).moonrise$getEntityLookup().getEntities(base, null, boundingBox, (List)into, (Predicate)modifiedPredicate); + return; + } + } + } - return AbortableIterationConsumer.Continuation.CONTINUE; - }); + public org.bukkit.entity.Entity[] getChunkEntities(int chunkX, int chunkZ) { + ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices slices = ((ServerLevel)this).moonrise$getEntityLookup().getChunk(chunkX, chunkZ); + if (slices == null) { + return new org.bukkit.entity.Entity[0]; + } + return slices.getChunkEntities(); } + // Paper end - rewrite chunk system @Nullable public abstract Entity getEntity(int id); diff --git a/src/main/java/net/minecraft/world/level/LevelReader.java b/src/main/java/net/minecraft/world/level/LevelReader.java index a0ae26d6197e1069ca09982b4f8b706c55ae8491..1a4dc4b2561dbaf01246b4fb46266b1ac84008b8 100644 --- a/src/main/java/net/minecraft/world/level/LevelReader.java +++ b/src/main/java/net/minecraft/world/level/LevelReader.java @@ -22,7 +22,18 @@ import net.minecraft.world.level.dimension.DimensionType; import net.minecraft.world.level.levelgen.Heightmap; import net.minecraft.world.phys.AABB; -public interface LevelReader extends BlockAndTintGetter, CollisionGetter, SignalGetter, BiomeManager.NoiseBiomeSource { +public interface LevelReader extends ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevelReader, BlockAndTintGetter, CollisionGetter, SignalGetter, BiomeManager.NoiseBiomeSource { // Paper - rewrite chunk system + + // Paper start - rewrite chunk system + @Override + public default ChunkAccess moonrise$syncLoadNonFull(final int chunkX, final int chunkZ, final ChunkStatus status) { + if (status == null || status.isOrAfter(ChunkStatus.FULL)) { + throw new IllegalArgumentException("Status: " + status.toString()); + } + return ((LevelReader)this).getChunk(chunkX, chunkZ, status, true); + } + // Paper end - rewrite chunk system + @Nullable ChunkAccess getChunk(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create); diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java index 6c4a339be29bb9c07b741a1ca12de2217c8687ba..a768b07dae4bf75b68e3bc1d3de4b68fc7d23842 100644 --- a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java +++ b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java @@ -762,7 +762,7 @@ public abstract class BlockBehaviour implements FeatureElement { boolean test(BlockState state, BlockGetter world, BlockPos pos); } - public abstract static class BlockStateBase extends StateHolder { + public abstract static class BlockStateBase extends StateHolder implements ca.spottedleaf.moonrise.patches.starlight.blockstate.StarlightAbstractBlockState { // Paper - rewrite chunk system private final int lightEmission; private final boolean useShapeForLightOcclusion; @@ -794,6 +794,21 @@ public abstract class BlockBehaviour implements FeatureElement { private FluidState fluidState; private boolean isRandomlyTicking; + // Paper start - rewrite chunk system + private int opacityIfCached; + private boolean isConditionallyFullOpaque; + + @Override + public final boolean starlight$isConditionallyFullOpaque() { + return this.isConditionallyFullOpaque; + } + + @Override + public final int starlight$getOpacityIfCached() { + return this.opacityIfCached; + } + // Paper end - rewrite chunk system + protected BlockStateBase(Block block, Reference2ObjectArrayMap, Comparable> propertyMap, MapCodec codec) { super(block, propertyMap, codec); this.fluidState = Fluids.EMPTY.defaultFluidState(); @@ -864,6 +879,10 @@ public abstract class BlockBehaviour implements FeatureElement { this.shapeExceedsCube = this.cache == null || this.cache.largeCollisionShape; // Paper - moved from actual method to here this.legacySolid = this.calculateSolid(); + // Paper start - rewrite chunk system + this.isConditionallyFullOpaque = this.canOcclude & this.useShapeForLightOcclusion; + this.opacityIfCached = this.cache == null || this.isConditionallyFullOpaque ? -1 : this.cache.lightBlock; + // Paper end - rewrite chunk system } public Block getBlock() { diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java index db4d95ce98eb1490d5306d1f74b282d27264871a..fb7bdf43fdc4d816b1c1f1f063bc170561c9544f 100644 --- a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java +++ b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java @@ -57,7 +57,7 @@ import net.minecraft.world.ticks.SerializableTickContainer; import net.minecraft.world.ticks.TickContainerAccess; import org.slf4j.Logger; -public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiomeSource, LightChunk, StructureAccess { +public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiomeSource, LightChunk, StructureAccess, ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk { // Paper - rewrite chunk system public static final int NO_FILLED_SECTION = -1; private static final Logger LOGGER = LogUtils.getLogger(); @@ -77,7 +77,7 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom @Nullable protected BlendingData blendingData; public final Map heightmaps = Maps.newEnumMap(Heightmap.Types.class); - protected ChunkSkyLightSources skyLightSources; + // Paper - rewrite chunk system private final Map structureStarts = Maps.newHashMap(); private final Map structuresRefences = Maps.newHashMap(); protected final Map pendingBlockEntities = Maps.newHashMap(); @@ -90,6 +90,53 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom public org.bukkit.craftbukkit.persistence.DirtyCraftPersistentDataContainer persistentDataContainer = new org.bukkit.craftbukkit.persistence.DirtyCraftPersistentDataContainer(ChunkAccess.DATA_TYPE_REGISTRY); // CraftBukkit end + // Paper start - rewrite chunk system + private volatile ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] blockNibbles; + private volatile ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] skyNibbles; + private volatile boolean[] skyEmptinessMap; + private volatile boolean[] blockEmptinessMap; + + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getBlockNibbles() { + return this.blockNibbles; + } + + @Override + public void starlight$setBlockNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) { + this.blockNibbles = nibbles; + } + + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getSkyNibbles() { + return this.skyNibbles; + } + + @Override + public void starlight$setSkyNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) { + this.skyNibbles = nibbles; + } + + @Override + public boolean[] starlight$getSkyEmptinessMap() { + return this.skyEmptinessMap; + } + + @Override + public void starlight$setSkyEmptinessMap(final boolean[] emptinessMap) { + this.skyEmptinessMap = emptinessMap; + } + + @Override + public boolean[] starlight$getBlockEmptinessMap() { + return this.blockEmptinessMap; + } + + @Override + public void starlight$setBlockEmptinessMap(final boolean[] emptinessMap) { + this.blockEmptinessMap = emptinessMap; + } + // Paper end - rewrite chunk system + public ChunkAccess(ChunkPos pos, UpgradeData upgradeData, LevelHeightAccessor heightLimitView, Registry biomeRegistry, long inhabitedTime, @Nullable LevelChunkSection[] sectionArray, @Nullable BlendingData blendingData) { this.locX = pos.x; this.locZ = pos.z; // Paper - reduce need for field lookups this.chunkPos = pos; this.coordinateKey = ChunkPos.asLong(locX, locZ); // Paper - cache long key @@ -99,7 +146,7 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom this.inhabitedTime = inhabitedTime; this.postProcessing = new ShortList[heightLimitView.getSectionsCount()]; this.blendingData = blendingData; - this.skyLightSources = new ChunkSkyLightSources(heightLimitView); + // Paper - rewrite chunk system if (sectionArray != null) { if (this.sections.length == sectionArray.length) { System.arraycopy(sectionArray, 0, this.sections, 0, this.sections.length); @@ -111,6 +158,12 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom ChunkAccess.replaceMissingSections(biomeRegistry, this.sections); // CraftBukkit start this.biomeRegistry = biomeRegistry; + // Paper start - rewrite chunk system + if (!((Object)this instanceof ImposterProtoChunk)) { + this.starlight$setBlockNibbles(ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine.getFilledEmptyLight(heightLimitView)); + this.starlight$setSkyNibbles(ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine.getFilledEmptyLight(heightLimitView)); + } + // Paper end - rewrite chunk system } public final Registry biomeRegistry; // CraftBukkit end @@ -514,12 +567,12 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom } public void initializeLightSources() { - this.skyLightSources.fillFrom(this); + // Paper - rewrite chunk system } @Override public ChunkSkyLightSources getSkyLightSources() { - return this.skyLightSources; + return null; // Paper - rewrite chunk system } public static record TicksToSave(SerializableTickContainer blocks, SerializableTickContainer fluids) { diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java index 29697fad32dad3377eebc82d280ba48d3c1ad516..488938c32a48437721a71d294c77468f00c035b9 100644 --- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java +++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java @@ -119,7 +119,7 @@ public abstract class ChunkGenerator { return CompletableFuture.supplyAsync(Util.wrapThreadWithTaskName("init_biomes", () -> { chunk.fillBiomesFromNoise(this.biomeSource, noiseConfig.sampler()); return chunk; - }), Util.backgroundExecutor()); + }), Runnable::run); // Paper - rewrite chunk system } public abstract void applyCarvers(WorldGenRegion chunkRegion, long seed, RandomState noiseConfig, BiomeManager biomeAccess, StructureManager structureAccessor, ChunkAccess chunk, GenerationStep.Carving carverStep); @@ -314,7 +314,7 @@ public abstract class ChunkGenerator { return Pair.of(placement.getLocatePos(pos), holder); } - ChunkAccess ichunkaccess = world.getChunk(pos.x, pos.z, ChunkStatus.STRUCTURE_STARTS); + ChunkAccess ichunkaccess = ((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemLevelReader)world).moonrise$syncLoadNonFull(pos.x, pos.z, ChunkStatus.STRUCTURE_STARTS); // Paper - rewrite chunk system structurestart = structureAccessor.getStartForStructure(SectionPos.bottomOf(ichunkaccess), (Structure) holder.value(), ichunkaccess); } while (structurestart == null); diff --git a/src/main/java/net/minecraft/world/level/chunk/EmptyLevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/EmptyLevelChunk.java index dcc0acd259920463a4464213b9a5e793603852f9..ef4161884574d3d137e12591d983dc95a960cb19 100644 --- a/src/main/java/net/minecraft/world/level/chunk/EmptyLevelChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/EmptyLevelChunk.java @@ -13,7 +13,7 @@ import net.minecraft.world.level.block.state.BlockState; import net.minecraft.world.level.material.FluidState; import net.minecraft.world.level.material.Fluids; -public class EmptyLevelChunk extends LevelChunk { +public class EmptyLevelChunk extends LevelChunk implements ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk { // Paper - rewrite chunk system private final Holder biome; public EmptyLevelChunk(Level world, ChunkPos pos, Holder biomeEntry) { @@ -21,6 +21,40 @@ public class EmptyLevelChunk extends LevelChunk { this.biome = biomeEntry; } + // Paper start - rewrite chunk system + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getBlockNibbles() { + return ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine.getFilledEmptyLight(this.getLevel()); + } + + @Override + public void starlight$setBlockNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) {} + + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getSkyNibbles() { + return ca.spottedleaf.moonrise.patches.starlight.light.StarLightEngine.getFilledEmptyLight(this.getLevel()); + } + + @Override + public void starlight$setSkyNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) {} + + @Override + public boolean[] starlight$getSkyEmptinessMap() { + return null; + } + + @Override + public void starlight$setSkyEmptinessMap(final boolean[] emptinessMap) {} + + @Override + public boolean[] starlight$getBlockEmptinessMap() { + return null; + } + + @Override + public void starlight$setBlockEmptinessMap(final boolean[] emptinessMap) {} + // Paper end - rewrite chunk system + @Override public BlockState getBlockState(BlockPos pos) { return Blocks.VOID_AIR.defaultBlockState(); diff --git a/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java b/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java index 365074be989aa4a178114fd5e9810f1a68640196..4af698930712389881601069a921f054c07935f2 100644 --- a/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java @@ -31,7 +31,7 @@ import net.minecraft.world.level.material.FluidState; import net.minecraft.world.ticks.BlackholeTickAccess; import net.minecraft.world.ticks.TickContainerAccess; -public class ImposterProtoChunk extends ProtoChunk { +public class ImposterProtoChunk extends ProtoChunk implements ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk { // Paper - rewrite chunk system private final LevelChunk wrapped; private final boolean allowWrites; @@ -47,6 +47,48 @@ public class ImposterProtoChunk extends ProtoChunk { this.allowWrites = propagateToWrapped; } + // Paper start - rewrite chunk system + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getBlockNibbles() { + return ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$getBlockNibbles(); + } + + @Override + public void starlight$setBlockNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) { + ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$setBlockNibbles(nibbles); + } + + @Override + public ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] starlight$getSkyNibbles() { + return ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$getSkyNibbles(); + } + + @Override + public void starlight$setSkyNibbles(final ca.spottedleaf.moonrise.patches.starlight.light.SWMRNibbleArray[] nibbles) { + ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$setSkyNibbles(nibbles); + } + + @Override + public boolean[] starlight$getSkyEmptinessMap() { + return ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$getSkyEmptinessMap(); + } + + @Override + public void starlight$setSkyEmptinessMap(final boolean[] emptinessMap) { + ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$setSkyEmptinessMap(emptinessMap); + } + + @Override + public boolean[] starlight$getBlockEmptinessMap() { + return ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$getBlockEmptinessMap(); + } + + @Override + public void starlight$setBlockEmptinessMap(final boolean[] emptinessMap) { + ((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)this.wrapped).starlight$setBlockEmptinessMap(emptinessMap); + } + // Paper end - rewrite chunk system + @Nullable @Override public BlockEntity getBlockEntity(BlockPos pos) { diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java index 6c0e12c9c9c0fb8377cd1f48a43ca75c9fc3e58e..3be8f35ece18d4cffe8b23ecfeeff359e0b36e3e 100644 --- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java @@ -53,7 +53,7 @@ import net.minecraft.world.ticks.LevelChunkTicks; import net.minecraft.world.ticks.TickContainerAccess; import org.slf4j.Logger; -public class LevelChunk extends ChunkAccess { +public class LevelChunk extends ChunkAccess implements ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemLevelChunk, ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk { // Paper - rewrite chunk system static final Logger LOGGER = LogUtils.getLogger(); private static final TickingBlockEntity NULL_TICKER = new TickingBlockEntity() { @@ -218,6 +218,14 @@ public class LevelChunk extends ChunkAccess { } } // Paper end + // Paper start - rewrite chunk system + private boolean postProcessingDone; + + @Override + public final boolean moonrise$isPostProcessingDone() { + return this.postProcessingDone; + } + // Paper end - rewrite chunk system public LevelChunk(ServerLevel world, ProtoChunk protoChunk, @Nullable LevelChunk.PostLoadProcessor entityLoader) { this(world, protoChunk.getPos(), protoChunk.getUpgradeData(), protoChunk.unpackBlockTicks(), protoChunk.unpackFluidTicks(), protoChunk.getInhabitedTime(), protoChunk.getSections(), entityLoader, protoChunk.getBlendingData()); @@ -247,13 +255,19 @@ public class LevelChunk extends ChunkAccess { } } - this.skyLightSources = protoChunk.skyLightSources; + // Paper - rewrite chunk system this.setLightCorrect(protoChunk.isLightCorrect()); this.unsaved = true; this.needsDecoration = true; // CraftBukkit // CraftBukkit start this.persistentDataContainer = protoChunk.persistentDataContainer; // SPIGOT-6814: copy PDC to account for 1.17 to 1.18 chunk upgrading. // CraftBukkit end + // Paper start - rewrite chunk system + this.starlight$setBlockNibbles(((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)protoChunk).starlight$getBlockNibbles()); + this.starlight$setSkyNibbles(((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)protoChunk).starlight$getSkyNibbles()); + this.starlight$setSkyEmptinessMap(((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)protoChunk).starlight$getSkyEmptinessMap()); + this.starlight$setBlockEmptinessMap(((ca.spottedleaf.moonrise.patches.starlight.chunk.StarlightChunk)protoChunk).starlight$getBlockEmptinessMap()); + // Paper end - rewrite chunk system } @Override @@ -436,7 +450,7 @@ public class LevelChunk extends ChunkAccess { ProfilerFiller gameprofilerfiller = this.level.getProfiler(); gameprofilerfiller.push("updateSkyLightSources"); - this.skyLightSources.update(this, j, i, l); + // Paper - rewrite chunk system gameprofilerfiller.popPush("queueCheckLight"); this.level.getChunkSource().getLightEngine().checkBlock(blockposition); gameprofilerfiller.pop(); @@ -777,8 +791,27 @@ public class LevelChunk extends ChunkAccess { @Override public boolean isUnsaved() { - return super.isUnsaved() && !this.mustNotSave; + // Paper start - rewrite chunk system + final long gameTime = this.level.getGameTime(); + if (((ca.spottedleaf.moonrise.patches.chunk_system.ticks.ChunkSystemLevelChunkTicks)this.blockTicks).moonrise$isDirty(gameTime) + || ((ca.spottedleaf.moonrise.patches.chunk_system.ticks.ChunkSystemLevelChunkTicks)this.fluidTicks).moonrise$isDirty(gameTime)) { + return true; + } + + return super.isUnsaved(); + // Paper end - rewrite chunk system + } + + // Paper start - rewrite chunk system + @Override + public void setUnsaved(final boolean needsSaving) { + if (!needsSaving) { + ((ca.spottedleaf.moonrise.patches.chunk_system.ticks.ChunkSystemLevelChunkTicks)this.blockTicks).moonrise$clearDirty(); + ((ca.spottedleaf.moonrise.patches.chunk_system.ticks.ChunkSystemLevelChunkTicks)this.fluidTicks).moonrise$clearDirty(); + } + super.setUnsaved(needsSaving); } + // Paper end - rewrite chunk system // CraftBukkit end public boolean isEmpty() { @@ -884,6 +917,7 @@ public class LevelChunk extends ChunkAccess { this.pendingBlockEntities.clear(); this.upgradeData.upgrade(this); + this.postProcessingDone = true; // Paper - rewrite chunk system } @Nullable diff --git a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java index 2fa0097a9374a89177e4f1068d1bfed30b8ff122..fa9df6ebcd90d4e9e5836a37212b1f60665783b1 100644 --- a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java +++ b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java @@ -155,7 +155,7 @@ public class PalettedContainer implements PaletteResize, PalettedContainer return this.get(this.strategy.getIndex(x, y, z)); } - protected T get(int index) { + public T get(int index) { // Paper - public PalettedContainer.Data data = this.data; return data.palette.valueFor(data.storage.get(index)); } diff --git a/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java b/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java index 7f302405a88766c2112539d24d3dd2e513f94985..207dc31afcf5ca5a59ab27ee263aa10f94a79559 100644 --- a/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java @@ -143,7 +143,7 @@ public class ProtoChunk extends ChunkAccess { } if (LightEngine.hasDifferentLightProperties(this, pos, blockState, state)) { - this.skyLightSources.update(this, m, j, o); + // Paper - rewrite chunk system this.lightEngine.checkBlock(pos); } } diff --git a/src/main/java/net/minecraft/world/level/chunk/status/ChunkPyramid.java b/src/main/java/net/minecraft/world/level/chunk/status/ChunkPyramid.java index b1058bf0dcda544a074f4d3772d7899b94f98927..b7bf82f6b6023bd628d3e7ea84d2d6755a0d931a 100644 --- a/src/main/java/net/minecraft/world/level/chunk/status/ChunkPyramid.java +++ b/src/main/java/net/minecraft/world/level/chunk/status/ChunkPyramid.java @@ -54,7 +54,7 @@ public record ChunkPyramid(ImmutableList steps) { .step(ChunkStatus.CARVERS, builder -> builder) .step(ChunkStatus.FEATURES, builder -> builder) .step(ChunkStatus.INITIALIZE_LIGHT, builder -> builder.setTask(ChunkStatusTasks::initializeLight)) - .step(ChunkStatus.LIGHT, builder -> builder.addRequirement(ChunkStatus.INITIALIZE_LIGHT, 1).setTask(ChunkStatusTasks::light)) + .step(ChunkStatus.LIGHT, builder -> builder.setTask(ChunkStatusTasks::light)) // Paper - rewrite chunk system - starlight does not need neighbours .step(ChunkStatus.SPAWN, builder -> builder) .step(ChunkStatus.FULL, builder -> builder.setTask(ChunkStatusTasks::full)) .build(); diff --git a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatus.java b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatus.java index 0baa4adf2a4401f9c955352f27e6f99957d1dff4..3723c07183e7b894cccf4d01bedf1d0d832c1910 100644 --- a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatus.java +++ b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatus.java @@ -11,7 +11,7 @@ import net.minecraft.resources.ResourceLocation; import net.minecraft.world.level.levelgen.Heightmap; import org.jetbrains.annotations.VisibleForTesting; -public class ChunkStatus { +public class ChunkStatus implements ca.spottedleaf.moonrise.patches.chunk_system.level.chunk.ChunkSystemChunkStatus { // Paper - rewrite chunk system public static final int MAX_STRUCTURE_DISTANCE = 8; private static final EnumSet WORLDGEN_HEIGHTMAPS = EnumSet.of(Heightmap.Types.OCEAN_FLOOR_WG, Heightmap.Types.WORLD_SURFACE_WG); public static final EnumSet FINAL_HEIGHTMAPS = EnumSet.of( @@ -51,8 +51,68 @@ public class ChunkStatus { return list; } + // Paper start - rewrite chunk system + private boolean isParallelCapable; + private boolean emptyLoadTask; + private int writeRadius; + private ChunkStatus nextStatus; + private java.util.concurrent.atomic.AtomicBoolean warnedAboutNoImmediateComplete; + + @Override + public final boolean moonrise$isParallelCapable() { + return this.isParallelCapable; + } + + @Override + public final void moonrise$setParallelCapable(final boolean value) { + this.isParallelCapable = value; + } + + @Override + public final int moonrise$getWriteRadius() { + return this.writeRadius; + } + + @Override + public final void moonrise$setWriteRadius(final int value) { + this.writeRadius = value; + } + + @Override + public final ChunkStatus moonrise$getNextStatus() { + return this.nextStatus; + } + + @Override + public final boolean moonrise$isEmptyLoadStatus() { + return this.emptyLoadTask; + } + + @Override + public void moonrise$setEmptyLoadStatus(final boolean value) { + this.emptyLoadTask = value; + } + + @Override + public final boolean moonrise$isEmptyGenStatus() { + return (Object)this == ChunkStatus.EMPTY; + } + + @Override + public final java.util.concurrent.atomic.AtomicBoolean moonrise$getWarnedAboutNoImmediateComplete() { + return this.warnedAboutNoImmediateComplete; + } + // Paper end - rewrite chunk system + @VisibleForTesting protected ChunkStatus(@Nullable ChunkStatus previous, EnumSet heightMapTypes, ChunkType chunkType) { + this.isParallelCapable = false; + this.writeRadius = -1; + this.nextStatus = (ChunkStatus)(Object)this; + if (previous != null) { + previous.nextStatus = (ChunkStatus)(Object)this; + } + this.warnedAboutNoImmediateComplete = new java.util.concurrent.atomic.AtomicBoolean(); this.parent = previous == null ? this : previous; this.chunkType = chunkType; this.heightmapsAfter = heightMapTypes; diff --git a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatusTasks.java b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatusTasks.java index ae16cf5c803caae636860dd9b1a83abe479ca5a4..b993c4b2595e2879b25753c2e34530f3622c18fa 100644 --- a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatusTasks.java +++ b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStatusTasks.java @@ -154,7 +154,7 @@ public class ChunkStatusTasks { chunk1 = ((ImposterProtoChunk) protochunk).getWrapped(); } else { chunk1 = new LevelChunk(worldserver, protochunk, ($) -> { // Paper - decompile fix - ChunkStatusTasks.postLoadProtoChunk(worldserver, protochunk.getEntities()); + ChunkStatusTasks.postLoadProtoChunk(worldserver, protochunk.getEntities(), protochunk.getPos()); // Paper - rewrite chunk system }); generationchunkholder.replaceProtoChunk(new ImposterProtoChunk(chunk1, false)); } @@ -175,7 +175,7 @@ public class ChunkStatusTasks { }); } - private static void postLoadProtoChunk(ServerLevel world, List entities) { + public static void postLoadProtoChunk(ServerLevel world, List entities, ChunkPos pos) { // Paper - public, add ChunkPos param if (!entities.isEmpty()) { // CraftBukkit start - these are spawned serialized (DefinedStructure) and we don't call an add event below at the moment due to ordering complexities world.addWorldGenChunkEntities(EntityType.loadEntitiesRecursive(entities, world).filter((entity) -> { @@ -191,7 +191,7 @@ public class ChunkStatusTasks { } checkDupeUUID(world, entity); // Paper - duplicate uuid resolving return !needsRemoval; - })); + }), pos); // Paper - rewrite chunk system // CraftBukkit end } diff --git a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStep.java b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStep.java index f6e08a8334633ff1532616d051bed46b702d0091..4e56398a6fb8b97199f4c74ebebc1055fb718dcf 100644 --- a/src/main/java/net/minecraft/world/level/chunk/status/ChunkStep.java +++ b/src/main/java/net/minecraft/world/level/chunk/status/ChunkStep.java @@ -11,9 +11,50 @@ import net.minecraft.util.profiling.jfr.callback.ProfiledDuration; import net.minecraft.world.level.chunk.ChunkAccess; import net.minecraft.world.level.chunk.ProtoChunk; -public record ChunkStep( - ChunkStatus targetStatus, ChunkDependencies directDependencies, ChunkDependencies accumulatedDependencies, int blockStateWriteRadius, ChunkStatusTask task -) { +// Paper start - rewerite chunk system - convert record to class +public final class ChunkStep implements ca.spottedleaf.moonrise.patches.chunk_system.status.ChunkSystemChunkStep { // Paper - rewrite chunk system + private final ChunkStatus targetStatus; + private final ChunkDependencies directDependencies; + private final ChunkDependencies accumulatedDependencies; + private final int blockStateWriteRadius; + private final ChunkStatusTask task; + + private final ChunkStatus[] byRadius; // Paper - rewrite chunk system + + public ChunkStep( + ChunkStatus targetStatus, ChunkDependencies directDependencies, ChunkDependencies accumulatedDependencies, int blockStateWriteRadius, ChunkStatusTask task + ) { + this.targetStatus = targetStatus; + this.directDependencies = directDependencies; + this.accumulatedDependencies = accumulatedDependencies; + this.blockStateWriteRadius = blockStateWriteRadius; + this.task = task; + + // Paper start - rewrite chunk system + this.byRadius = new ChunkStatus[this.getAccumulatedRadiusOf(ChunkStatus.EMPTY) + 1]; + this.byRadius[0] = targetStatus.getParent(); + + for (ChunkStatus status = targetStatus.getParent(); status != ChunkStatus.EMPTY; status = status.getParent()) { + final int radius = this.getAccumulatedRadiusOf(status); + + for (int j = 0; j <= radius; ++j) { + if (this.byRadius[j] == null) { + this.byRadius[j] = status; + } + } + } + // Paper end - rewrite chunk system + } + + // Paper start - rewrite chunk system + @Override + public final ChunkStatus moonrise$getRequiredStatusAtRadius(final int radius) { + return this.byRadius[radius]; + } + // Paper end - rewrite chunk system + + // Paper start - rewerite chunk system - convert record to class + public int getAccumulatedRadiusOf(ChunkStatus status) { return status == this.targetStatus ? 0 : this.accumulatedDependencies.getRadiusOf(status); } @@ -39,6 +80,56 @@ public record ChunkStep( return chunk; } + // Paper start - rewerite chunk system - convert record to class + public ChunkStatus targetStatus() { + return targetStatus; + } + + public ChunkDependencies directDependencies() { + return directDependencies; + } + + public ChunkDependencies accumulatedDependencies() { + return accumulatedDependencies; + } + + public int blockStateWriteRadius() { + return blockStateWriteRadius; + } + + public ChunkStatusTask task() { + return task; + } + + @Override + public boolean equals(Object obj) { + if (obj == this) return true; + if (obj == null || obj.getClass() != this.getClass()) return false; + var that = (net.minecraft.world.level.chunk.status.ChunkStep) obj; + return java.util.Objects.equals(this.targetStatus, that.targetStatus) && + java.util.Objects.equals(this.directDependencies, that.directDependencies) && + java.util.Objects.equals(this.accumulatedDependencies, that.accumulatedDependencies) && + this.blockStateWriteRadius == that.blockStateWriteRadius && + java.util.Objects.equals(this.task, that.task); + } + + @Override + public int hashCode() { + return java.util.Objects.hash(targetStatus, directDependencies, accumulatedDependencies, blockStateWriteRadius, task); + } + + @Override + public String toString() { + return "ChunkStep[" + + "targetStatus=" + targetStatus + ", " + + "directDependencies=" + directDependencies + ", " + + "accumulatedDependencies=" + accumulatedDependencies + ", " + + "blockStateWriteRadius=" + blockStateWriteRadius + ", " + + "task=" + task + ']'; + } + // Paper end - rewerite chunk system - convert record to class + + public static class Builder { private final ChunkStatus status; @Nullable diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java index d42585bccb03f8ee1be5e37cfbe8520af4cc5454..977bebe8657abc5cb84ede8276d6781cde20e847 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java @@ -165,7 +165,7 @@ public class ChunkSerializer { achunksection[k] = chunksection; SectionPos sectionposition = SectionPos.of(chunkPos, b0); - poiStorage.checkConsistencyWithBlocks(sectionposition, chunksection); + // Paper - rewrite chunk system - moved to final load stage } boolean flag3 = nbttagcompound1.contains("BlockLight", 7); @@ -287,6 +287,8 @@ public class ChunkSerializer { } } + ca.spottedleaf.moonrise.patches.starlight.util.SaveUtil.loadLightHook(world, chunkPos, nbt, (ChunkAccess)object1); // Paper - rewrite chunk system - note: it's ok to pass the raw value instead of wrapped + if (chunktype == ChunkType.LEVELCHUNK) { return new ImposterProtoChunk((LevelChunk) object1, false); } else { @@ -341,14 +343,44 @@ public class ChunkSerializer { } // CraftBukkit end + // Paper start - async chunk saving + // must be called sync + public static ca.spottedleaf.moonrise.patches.chunk_system.async_save.AsyncChunkSaveData getAsyncSaveData(ServerLevel world, ChunkAccess chunk) { + io.papermc.paper.util.TickThread.ensureTickThread(world, chunk.locX, chunk.locZ, "Preparing async chunk save data"); + + final CompoundTag tickLists = new CompoundTag(); + ChunkSerializer.saveTicks(world, tickLists, chunk.getTicksForSerialization()); + + ListTag blockEntitiesSerialized = new ListTag(); + for (final BlockPos blockPos : chunk.getBlockEntitiesPos()) { + final CompoundTag blockEntityNbt = chunk.getBlockEntityNbtForSaving(blockPos, world.registryAccess()); + if (blockEntityNbt != null) { + blockEntitiesSerialized.add(blockEntityNbt); + } + } + + return new ca.spottedleaf.moonrise.patches.chunk_system.async_save.AsyncChunkSaveData( + tickLists.get(BLOCK_TICKS_TAG), + tickLists.get(FLUID_TICKS_TAG), + blockEntitiesSerialized, + world.getGameTime() + ); + } + // Paper end - async chunk saving + public static CompoundTag write(ServerLevel world, ChunkAccess chunk) { + // Paper start - async chunk saving + return saveChunk(world, chunk, null); + } + public static CompoundTag saveChunk(ServerLevel world, ChunkAccess chunk, ca.spottedleaf.moonrise.patches.chunk_system.async_save.AsyncChunkSaveData asyncsavedata) { + // Paper end - async chunk saving ChunkPos chunkcoordintpair = chunk.getPos(); CompoundTag nbttagcompound = NbtUtils.addCurrentDataVersion(new CompoundTag()); nbttagcompound.putInt("xPos", chunkcoordintpair.x); nbttagcompound.putInt("yPos", chunk.getMinSection()); nbttagcompound.putInt("zPos", chunkcoordintpair.z); - nbttagcompound.putLong("LastUpdate", world.getGameTime()); + nbttagcompound.putLong("LastUpdate", asyncsavedata != null ? asyncsavedata.worldTime() : world.getGameTime()); // Paper - async chunk saving nbttagcompound.putLong("InhabitedTime", chunk.getInhabitedTime()); nbttagcompound.putString("Status", BuiltInRegistries.CHUNK_STATUS.getKey(chunk.getPersistedStatus()).toString()); BlendingData blendingdata = chunk.getBlendingData(); @@ -424,8 +456,17 @@ public class ChunkSerializer { nbttagcompound.putBoolean("isLightOn", true); } - ListTag nbttaglist1 = new ListTag(); - Iterator iterator = chunk.getBlockEntitiesPos().iterator(); + // Paper start - async chunk saving + ListTag nbttaglist1; + Iterator iterator; + if (asyncsavedata != null) { + nbttaglist1 = asyncsavedata.blockEntities(); + iterator = java.util.Collections.emptyIterator(); + } else { + nbttaglist1 = new ListTag(); + iterator = chunk.getBlockEntitiesPos().iterator(); + } + // Paper end - async chunk saving CompoundTag nbttagcompound2; @@ -461,7 +502,14 @@ public class ChunkSerializer { nbttagcompound.put("CarvingMasks", nbttagcompound2); } + // Paper start + if (asyncsavedata != null) { + nbttagcompound.put(BLOCK_TICKS_TAG, asyncsavedata.blockTickList()); + nbttagcompound.put(FLUID_TICKS_TAG, asyncsavedata.fluidTickList()); + } else { ChunkSerializer.saveTicks(world, nbttagcompound, chunk.getTicksForSerialization()); + } + // Paper end nbttagcompound.put("PostProcessing", ChunkSerializer.packOffsets(chunk.getPostProcessing())); CompoundTag nbttagcompound3 = new CompoundTag(); Iterator iterator1 = chunk.getHeightmaps().iterator(); @@ -481,6 +529,7 @@ public class ChunkSerializer { nbttagcompound.put("ChunkBukkitValues", chunk.persistentDataContainer.toTagCompound()); } // CraftBukkit end + ca.spottedleaf.moonrise.patches.starlight.util.SaveUtil.saveLightHook(world, chunk, nbttagcompound); // Paper - rewrite chunk system return nbttagcompound; } @@ -506,7 +555,7 @@ public class ChunkSerializer { return nbttaglist == null && nbttaglist1 == null ? null : (chunk) -> { if (nbttaglist != null) { - world.addLegacyChunkEntities(EntityType.loadEntitiesRecursive(nbttaglist, world)); + world.addLegacyChunkEntities(EntityType.loadEntitiesRecursive(nbttaglist, world), chunk.getPos()); // Paper - rewrite chunk system } if (nbttaglist1 != null) { diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java index f0f5e9bb5ac65250f0a151f9f90b58468335a8c2..0cdc224656a2baa09b7dfbb249b6a96320ac43e0 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java @@ -28,21 +28,31 @@ import net.minecraft.world.level.dimension.LevelStem; import net.minecraft.world.level.levelgen.structure.LegacyStructureDataHandler; import net.minecraft.world.level.storage.DimensionDataStorage; -public class ChunkStorage implements AutoCloseable { +public class ChunkStorage implements AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.storage.ChunkSystemChunkStorage { // Paper - rewrite chunk system public static final int LAST_MONOLYTH_STRUCTURE_DATA_VERSION = 1493; - private final IOWorker worker; + // Paper - rewrite chunk system protected final DataFixer fixerUpper; @Nullable private volatile LegacyStructureDataHandler legacyStructureHandler; + // Paper start - rewrite chunk system + private static final org.slf4j.Logger LOGGER = com.mojang.logging.LogUtils.getLogger(); + private final RegionFileStorage storage; + + @Override + public final RegionFileStorage moonrise$getRegionStorage() { + return this.storage; + } + // Paper end - rewrite chunk system + public ChunkStorage(RegionStorageInfo storageKey, Path directory, DataFixer dataFixer, boolean dsync) { this.fixerUpper = dataFixer; - this.worker = new IOWorker(storageKey, directory, dsync); + this.storage = new IOWorker(storageKey, directory, dsync).storage; // Paper - rewrite chunk system } public boolean isOldChunkAround(ChunkPos chunkPos, int checkRadius) { - return this.worker.isOldChunkAround(chunkPos, checkRadius); + return true; // Paper - rewrite chunk system } // CraftBukkit start @@ -102,7 +112,9 @@ public class ChunkStorage implements AutoCloseable { if (nbttagcompound.getCompound("Level").getBoolean("hasLegacyStructureData")) { LegacyStructureDataHandler persistentstructurelegacy = this.getLegacyStructureHandler(resourcekey, supplier); + synchronized (persistentstructurelegacy) { // Paper - rewrite chunk system nbttagcompound = persistentstructurelegacy.updateFromLegacy(nbttagcompound); + } // Paper - rewrite chunk system } } @@ -169,7 +181,13 @@ public class ChunkStorage implements AutoCloseable { } public CompletableFuture> read(ChunkPos chunkPos) { - return this.worker.loadAsync(chunkPos); + // Paper start - rewrite chunk system + try { + return CompletableFuture.completedFuture(Optional.ofNullable(this.storage.read(chunkPos))); + } catch (final Throwable throwable) { + return CompletableFuture.failedFuture(throwable); + } + // Paper end - rewrite chunk system } public CompletableFuture write(ChunkPos chunkPos, CompoundTag nbt) { @@ -181,29 +199,54 @@ public class ChunkStorage implements AutoCloseable { } // Paper end - guard against serializing mismatching coordinates this.handleLegacyStructureIndex(chunkPos); - return this.worker.store(chunkPos, nbt); + // Paper start - rewrite chunk system + try { + this.storage.write(chunkPos, nbt); + return CompletableFuture.completedFuture(null); + } catch (final Throwable throwable) { + return CompletableFuture.failedFuture(throwable); + } + // Paper end - rewrite chunk system } protected void handleLegacyStructureIndex(ChunkPos chunkPos) { if (this.legacyStructureHandler != null) { + synchronized (this.legacyStructureHandler) { // Paper - rewrite chunk system this.legacyStructureHandler.removeIndex(chunkPos.toLong()); + } // Paper - rewrite chunk system } } public void flushWorker() { - this.worker.synchronize(true).join(); + // Paper start - rewrite chunk system + try { + this.storage.flush(); + } catch (final IOException ex) { + LOGGER.error("Failed to flush chunk storage", ex); + } + // Paper end - rewrite chunk system } public void close() throws IOException { - this.worker.close(); + this.storage.close(); // Paper - rewrite chunk system } public ChunkScanAccess chunkScanner() { - return this.worker; + // Paper start - rewrite chunk system + // TODO ChunkMap implementation? + return (chunkPos, streamTagVisitor) -> { + try { + this.storage.scanChunk(chunkPos, streamTagVisitor); + return java.util.concurrent.CompletableFuture.completedFuture(null); + } catch (IOException e) { + throw new RuntimeException(e); + } + }; + // Paper end - rewrite chunk system } - protected RegionStorageInfo storageInfo() { - return this.worker.storageInfo(); + public RegionStorageInfo storageInfo() { // Paper - public + return this.storage.info(); // Paper - rewrite chunk system } } diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java index 36b8a9ac385e43f3212aca1b1f5bd7115bd00431..503ac0374e0c9f9993ad37bb8bd8cf1570d3615a 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java @@ -70,12 +70,12 @@ public class EntityStorage implements EntityPersistentStorage { } } - private static ChunkPos readChunkPos(CompoundTag chunkNbt) { + public static ChunkPos readChunkPos(CompoundTag chunkNbt) { // Paper - public int[] is = chunkNbt.getIntArray("Position"); return new ChunkPos(is[0], is[1]); } - private static void writeChunkPos(CompoundTag chunkNbt, ChunkPos pos) { + public static void writeChunkPos(CompoundTag chunkNbt, ChunkPos pos) { // Paper - public chunkNbt.put("Position", new IntArrayTag(new int[]{pos.x, pos.z})); } diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/IOWorker.java b/src/main/java/net/minecraft/world/level/chunk/storage/IOWorker.java index 053504cc6c98be3b70bd1722e279d861694e015d..316bf111fe94ce7a71af71cd32c94fcf528d4365 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/IOWorker.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/IOWorker.java @@ -32,7 +32,7 @@ public class IOWorker implements ChunkScanAccess, AutoCloseable { private static final Logger LOGGER = LogUtils.getLogger(); private final AtomicBoolean shutdownRequested = new AtomicBoolean(); private final ProcessorMailbox mailbox; - private final RegionFileStorage storage; + public final RegionFileStorage storage; // Paper - public private final Map pendingWrites = Maps.newLinkedHashMap(); private final Long2ObjectLinkedOpenHashMap> regionCacheForBlender = new Long2ObjectLinkedOpenHashMap<>(); private static final int REGION_CACHE_SIZE = 1024; diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java index 4c1212c6ef48594e766fa9e35a6e15916602d587..18054304e08c8a6346c0135a0e6a68e77fe5c37c 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java @@ -17,7 +17,7 @@ import net.minecraft.nbt.StreamTagVisitor; import net.minecraft.util.ExceptionCollector; import net.minecraft.world.level.ChunkPos; -public final class RegionFileStorage implements AutoCloseable { +public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.io.ChunkSystemRegionFileStorage { // Paper - rewrite chunk system public static final String ANVIL_EXTENSION = ".mca"; private static final int MAX_CACHE_SIZE = 256; @@ -26,33 +26,122 @@ public final class RegionFileStorage implements AutoCloseable { private final Path folder; private final boolean sync; - RegionFileStorage(RegionStorageInfo storageKey, Path directory, boolean dsync) { + // Paper start - rewrite chunk system + private static final int REGION_SHIFT = 5; + private static final int MAX_NON_EXISTING_CACHE = 1024 * 64; + private final it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet nonExistingRegionFiles = new it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet(MAX_NON_EXISTING_CACHE+1); + private static String getRegionFileName(final int chunkX, final int chunkZ) { + return "r." + (chunkX >> REGION_SHIFT) + "." + (chunkZ >> REGION_SHIFT) + ".mca"; + } + + private boolean doesRegionFilePossiblyExist(final long position) { + synchronized (this.nonExistingRegionFiles) { + if (this.nonExistingRegionFiles.contains(position)) { + this.nonExistingRegionFiles.addAndMoveToFirst(position); + return false; + } + return true; + } + } + + private void createRegionFile(final long position) { + synchronized (this.nonExistingRegionFiles) { + this.nonExistingRegionFiles.remove(position); + } + } + + private void markNonExisting(final long position) { + synchronized (this.nonExistingRegionFiles) { + if (this.nonExistingRegionFiles.addAndMoveToFirst(position)) { + while (this.nonExistingRegionFiles.size() >= MAX_NON_EXISTING_CACHE) { + this.nonExistingRegionFiles.removeLastLong(); + } + } + } + } + + @Override + public final boolean moonrise$doesRegionFileNotExistNoIO(final int chunkX, final int chunkZ) { + return !this.doesRegionFilePossiblyExist(ChunkPos.asLong(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT)); + } + + @Override + public synchronized final RegionFile moonrise$getRegionFileIfLoaded(final int chunkX, final int chunkZ) { + return this.regionCache.getAndMoveToFirst(ChunkPos.asLong(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT)); + } + + @Override + public synchronized final RegionFile moonrise$getRegionFileIfExists(final int chunkX, final int chunkZ) throws IOException { + final long key = ChunkPos.asLong(chunkX >> REGION_SHIFT, chunkZ >> REGION_SHIFT); + + RegionFile ret = this.regionCache.getAndMoveToFirst(key); + if (ret != null) { + return ret; + } + + if (!this.doesRegionFilePossiblyExist(key)) { + return null; + } + + if (this.regionCache.size() >= io.papermc.paper.configuration.GlobalConfiguration.get().misc.regionFileCacheSize) { // Paper + this.regionCache.removeLast().close(); + } + + final Path regionPath = this.folder.resolve(getRegionFileName(chunkX, chunkZ)); + + if (!java.nio.file.Files.exists(regionPath)) { + this.markNonExisting(key); + return null; + } + + this.createRegionFile(key); + + FileUtil.createDirectoriesSafe(this.folder); + + ret = new RegionFile(this.info, regionPath, this.folder, this.sync); + + this.regionCache.putAndMoveToFirst(key, ret); + + return ret; + } + // Paper end - rewrite chunk system + + protected RegionFileStorage(RegionStorageInfo storageKey, Path directory, boolean dsync) { // Paper - protected this.folder = directory; this.sync = dsync; this.info = storageKey; } - private RegionFile getRegionFile(ChunkPos chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit - long i = ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()); - RegionFile regionfile = (RegionFile) this.regionCache.getAndMoveToFirst(i); + public RegionFile getRegionFile(ChunkPos chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit // Paper - public + // Paper start - rewrite chunk system + if (existingOnly) { + return this.moonrise$getRegionFileIfExists(chunkcoordintpair.x, chunkcoordintpair.z); + } + synchronized (this) { + final long key = ChunkPos.asLong(chunkcoordintpair.x >> REGION_SHIFT, chunkcoordintpair.z >> REGION_SHIFT); - if (regionfile != null) { - return regionfile; - } else { - if (this.regionCache.size() >= io.papermc.paper.configuration.GlobalConfiguration.get().misc.regionFileCacheSize) { // Paper - Sanitise RegionFileCache and make configurable - ((RegionFile) this.regionCache.removeLast()).close(); + RegionFile ret = this.regionCache.getAndMoveToFirst(key); + if (ret != null) { + return ret; + } + + if (this.regionCache.size() >= io.papermc.paper.configuration.GlobalConfiguration.get().misc.regionFileCacheSize) { // Paper + this.regionCache.removeLast().close(); } + final Path regionPath = this.folder.resolve(getRegionFileName(chunkcoordintpair.x, chunkcoordintpair.z)); + + this.createRegionFile(key); + FileUtil.createDirectoriesSafe(this.folder); - Path path = this.folder; - int j = chunkcoordintpair.getRegionX(); - Path path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca"); - if (existingOnly && !java.nio.file.Files.exists(path1)) return null; // CraftBukkit - RegionFile regionfile1 = new RegionFile(this.info, path1, this.folder, this.sync); - this.regionCache.putAndMoveToFirst(i, regionfile1); - return regionfile1; + ret = new RegionFile(this.info, regionPath, this.folder, this.sync); + + this.regionCache.putAndMoveToFirst(key, ret); + + return ret; } + // Paper end - rewrite chunk system } @Nullable @@ -132,8 +221,14 @@ public final class RegionFileStorage implements AutoCloseable { } - protected void write(ChunkPos pos, @Nullable CompoundTag nbt) throws IOException { - RegionFile regionfile = this.getRegionFile(pos, false); // CraftBukkit + public void write(ChunkPos pos, @Nullable CompoundTag nbt) throws IOException { // Paper - public + RegionFile regionfile = this.getRegionFile(pos, nbt == null); // CraftBukkit // Paper - rewrite chunk system + // Paper start - rewrite chunk system + if (regionfile == null) { + // if the RegionFile doesn't exist, no point in deleting from it + return; + } + // Paper end - rewrite chunk system // Paper start - Chunk save reattempt int attempts = 0; Exception lastException = null; @@ -182,30 +277,37 @@ public final class RegionFileStorage implements AutoCloseable { } public void close() throws IOException { - ExceptionCollector exceptionsuppressor = new ExceptionCollector<>(); - ObjectIterator objectiterator = this.regionCache.values().iterator(); - - while (objectiterator.hasNext()) { - RegionFile regionfile = (RegionFile) objectiterator.next(); - - try { - regionfile.close(); - } catch (IOException ioexception) { - exceptionsuppressor.add(ioexception); + // Paper start - rewrite chunk system + synchronized (this) { + final ExceptionCollector exceptionCollector = new ExceptionCollector<>(); + for (final RegionFile regionFile : this.regionCache.values()) { + try { + regionFile.close(); + } catch (final IOException ex) { + exceptionCollector.add(ex); + } } - } - exceptionsuppressor.throwIfPresent(); + exceptionCollector.throwIfPresent(); + } + // Paper end - rewrite chunk system } public void flush() throws IOException { - ObjectIterator objectiterator = this.regionCache.values().iterator(); - - while (objectiterator.hasNext()) { - RegionFile regionfile = (RegionFile) objectiterator.next(); + // Paper start - rewrite chunk system + synchronized (this) { + final ExceptionCollector exceptionCollector = new ExceptionCollector<>(); + for (final RegionFile regionFile : this.regionCache.values()) { + try { + regionFile.flush(); + } catch (final IOException ex) { + exceptionCollector.add(ex); + } + } - regionfile.flush(); + exceptionCollector.throwIfPresent(); } + // Paper end - rewrite chunk system } diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java index 092773bd39d77a0dbe22db97c11aecb4a297111c..c7ed3eb80f6e8b918434153093644776866aa220 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java @@ -31,10 +31,10 @@ import net.minecraft.world.level.ChunkPos; import net.minecraft.world.level.LevelHeightAccessor; import org.slf4j.Logger; -public class SectionStorage implements AutoCloseable { +public abstract class SectionStorage implements AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.level.storage.ChunkSystemSectionStorage { // Paper - rewrite chunk system private static final Logger LOGGER = LogUtils.getLogger(); private static final String SECTIONS_TAG = "Sections"; - private final SimpleRegionStorage simpleRegionStorage; + // Paper - rewrite chunk system private final Long2ObjectMap> storage = new Long2ObjectOpenHashMap<>(); private final LongLinkedOpenHashSet dirty = new LongLinkedOpenHashSet(); private final Function> codec; @@ -43,6 +43,15 @@ public class SectionStorage implements AutoCloseable { private final ChunkIOErrorReporter errorReporter; protected final LevelHeightAccessor levelHeightAccessor; + // Paper start - rewrite chunk system + private final RegionFileStorage regionStorage; + + @Override + public final RegionFileStorage moonrise$getRegionStorage() { + return this.regionStorage; + } + // Paper end - rewrite chunk system + public SectionStorage( SimpleRegionStorage storageAccess, Function> codecFactory, @@ -51,12 +60,13 @@ public class SectionStorage implements AutoCloseable { ChunkIOErrorReporter errorHandler, LevelHeightAccessor world ) { - this.simpleRegionStorage = storageAccess; + // Paper - rewrite chunk system this.codec = codecFactory; this.factory = factory; this.registryAccess = registryManager; this.errorReporter = errorHandler; this.levelHeightAccessor = world; + this.regionStorage = storageAccess.worker.storage; // Paper - rewrite chunk system } protected void tick(BooleanSupplier shouldKeepTicking) { @@ -121,44 +131,17 @@ public class SectionStorage implements AutoCloseable { } private CompletableFuture> tryRead(ChunkPos pos) { - return this.simpleRegionStorage.read(pos).exceptionally(throwable -> { - if (throwable instanceof IOException iOException) { - LOGGER.error("Error reading chunk {} data from disk", pos, iOException); - this.errorReporter.reportChunkLoadFailure(iOException, this.simpleRegionStorage.storageInfo(), pos); - return Optional.empty(); - } else { - throw new CompletionException(throwable); - } - }); + // Paper start - rewrite chunk system + try { + return CompletableFuture.completedFuture(Optional.ofNullable(this.moonrise$read(pos.x, pos.z))); + } catch (final Throwable thr) { + return CompletableFuture.failedFuture(thr); + } + // Paper end - rewrite chunk system } private void readColumn(ChunkPos pos, RegistryOps ops, @Nullable CompoundTag nbt) { - if (nbt == null) { - for (int i = this.levelHeightAccessor.getMinSection(); i < this.levelHeightAccessor.getMaxSection(); i++) { - this.storage.put(getKey(pos, i), Optional.empty()); - } - } else { - Dynamic dynamic = new Dynamic<>(ops, nbt); - int j = getVersion(dynamic); - int k = SharedConstants.getCurrentVersion().getDataVersion().getVersion(); - boolean bl = j != k; - Dynamic dynamic2 = this.simpleRegionStorage.upgradeChunkTag(dynamic, j); - OptionalDynamic optionalDynamic = dynamic2.get("Sections"); - - for (int l = this.levelHeightAccessor.getMinSection(); l < this.levelHeightAccessor.getMaxSection(); l++) { - long m = getKey(pos, l); - Optional optional = optionalDynamic.get(Integer.toString(l)) - .result() - .flatMap(dynamicx -> this.codec.apply(() -> this.setDirty(m)).parse(dynamicx).resultOrPartial(LOGGER::error)); - this.storage.put(m, optional); - optional.ifPresent(sections -> { - this.onSectionLoad(m); - if (bl) { - this.setDirty(m); - } - }); - } - } + throw new IllegalStateException("Only chunk system can load in state, offending class:" + this.getClass().getName()); // Paper - rewrite chunk system } private void writeColumn(ChunkPos pos) { @@ -166,10 +149,13 @@ public class SectionStorage implements AutoCloseable { Dynamic dynamic = this.writeColumn(pos, registryOps); Tag tag = dynamic.getValue(); if (tag instanceof CompoundTag) { - this.simpleRegionStorage.write(pos, (CompoundTag)tag).exceptionally(throwable -> { - this.errorReporter.reportChunkSaveFailure(throwable, this.simpleRegionStorage.storageInfo(), pos); - return null; - }); + // Paper start - rewrite chunk system + try { + this.moonrise$write(pos.x, pos.z, (net.minecraft.nbt.CompoundTag)tag); + } catch (final IOException ex) { + LOGGER.error("Error writing poi chunk data to disk for chunk " + pos, ex); + } + // Paper end - rewrite chunk system } else { LOGGER.error("Expected compound tag, got {}", tag); } @@ -209,7 +195,7 @@ public class SectionStorage implements AutoCloseable { protected void onSectionLoad(long pos) { } - protected void setDirty(long pos) { + public void setDirty(long pos) { // Paper - public Optional optional = this.storage.get(pos); if (optional != null && !optional.isEmpty()) { this.dirty.add(pos); @@ -236,6 +222,6 @@ public class SectionStorage implements AutoCloseable { @Override public void close() throws IOException { - this.simpleRegionStorage.close(); + this.moonrise$close(); // Paper - rewrite chunk system } } diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java index e0e843f4f69013379ed70cb63d9b4f72163b828b..aafb05c5e63903f5790a6bcb862c8d79588be5a6 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java @@ -14,7 +14,7 @@ import net.minecraft.util.datafix.DataFixTypes; import net.minecraft.world.level.ChunkPos; public class SimpleRegionStorage implements AutoCloseable { - private final IOWorker worker; + public final IOWorker worker; // Paper - public private final DataFixer fixerUpper; private final DataFixTypes dataFixType; diff --git a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java index 74a285b8b018a9c94ccea519f1ce8b9e2ef3cb64..d8b4196adf955f8d414688dc451caac2d9c609d9 100644 --- a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java +++ b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java @@ -9,52 +9,38 @@ import javax.annotation.Nullable; import net.minecraft.world.entity.Entity; public class EntityTickList { - private Int2ObjectMap active = new Int2ObjectLinkedOpenHashMap<>(); - private Int2ObjectMap passive = new Int2ObjectLinkedOpenHashMap<>(); - @Nullable - private Int2ObjectMap iterated; + private final ca.spottedleaf.moonrise.common.list.IteratorSafeOrderedReferenceSet entities = new ca.spottedleaf.moonrise.common.list.IteratorSafeOrderedReferenceSet<>(); // Paper - rewrite chunk system private void ensureActiveIsNotIterated() { - if (this.iterated == this.active) { - this.passive.clear(); - - for (Entry entry : Int2ObjectMaps.fastIterable(this.active)) { - this.passive.put(entry.getIntKey(), entry.getValue()); - } - - Int2ObjectMap int2ObjectMap = this.active; - this.active = this.passive; - this.passive = int2ObjectMap; - } + // Paper - rewrite chunk system } public void add(Entity entity) { this.ensureActiveIsNotIterated(); - this.active.put(entity.getId(), entity); + this.entities.add(entity); // Paper - rewrite chunk system } public void remove(Entity entity) { this.ensureActiveIsNotIterated(); - this.active.remove(entity.getId()); + this.entities.remove(entity); // Paper - rewrite chunk system } public boolean contains(Entity entity) { - return this.active.containsKey(entity.getId()); + return this.entities.contains(entity); // Paper - rewrite chunk system } public void forEach(Consumer action) { - if (this.iterated != null) { - throw new UnsupportedOperationException("Only one concurrent iteration supported"); - } else { - this.iterated = this.active; - - try { - for (Entity entity : this.active.values()) { - action.accept(entity); - } - } finally { - this.iterated = null; + // Paper start - rewrite chunk system + // To ensure nothing weird happens with dimension travelling, do not iterate over new entries... + // (by dfl iterator() is configured to not iterate over new entries) + final ca.spottedleaf.moonrise.common.list.IteratorSafeOrderedReferenceSet.Iterator iterator = this.entities.iterator(); + try { + while (iterator.hasNext()) { + action.accept(iterator.next()); } + } finally { + iterator.finishedIterating(); } + // Paper end - rewrite chunk system } } diff --git a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java index fb0be805c86e311927f55e8f090592465195384e..996899cb18e6c29665b9de7a1cc97c9a4187924b 100644 --- a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java +++ b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java @@ -86,7 +86,7 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator { return CompletableFuture.supplyAsync(Util.wrapThreadWithTaskName("init_biomes", () -> { this.doCreateBiomes(blender, noiseConfig, structureAccessor, chunk); return chunk; - }), Util.backgroundExecutor()); + }), Runnable::run); // Paper - rewrite chunk system } private void doCreateBiomes(Blender blender, RandomState noiseConfig, StructureManager structureAccessor, ChunkAccess chunk) { @@ -311,7 +311,7 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator { } return ichunkaccess1; - }), Util.backgroundExecutor()); + }), Runnable::run); // Paper - rewrite chunk system } private ChunkAccess doFill(Blender blender, StructureManager structureAccessor, RandomState noiseConfig, ChunkAccess chunk, int minimumCellY, int cellHeight) { diff --git a/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java b/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java index c6181e14d85d454506534f9bbe856156c0d4a062..3694c5d2d522216cd2e6e91e502a56a08595ca84 100644 --- a/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java +++ b/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java @@ -47,8 +47,13 @@ public class StructureCheck { private final BiomeSource biomeSource; private final long seed; private final DataFixer fixerUpper; - private final Long2ObjectMap> loadedChunks = new Long2ObjectOpenHashMap<>(); - private final Map featureChecks = new HashMap<>(); + // Paper start - rewrite chunk system + // make sure to purge entries from the maps to prevent memory leaks + private static final int CHUNK_TOTAL_LIMIT = 50 * (2 * 100 + 1) * (2 * 100 + 1); // cache 50 structure lookups + private static final int PER_FEATURE_CHECK_LIMIT = 50 * (2 * 100 + 1) * (2 * 100 + 1); // cache 50 structure lookups + private final ca.spottedleaf.moonrise.common.map.SynchronisedLong2ObjectMap> loadedChunksSafe = new ca.spottedleaf.moonrise.common.map.SynchronisedLong2ObjectMap<>(CHUNK_TOTAL_LIMIT); + private final java.util.concurrent.ConcurrentHashMap featureChecksSafe = new java.util.concurrent.ConcurrentHashMap<>(); + // Paper end - rewrite chunk system public StructureCheck( ChunkScanAccess chunkIoWorker, @@ -90,7 +95,7 @@ public class StructureCheck { public StructureCheckResult checkStart(ChunkPos pos, Structure type, StructurePlacement placement, boolean skipReferencedStructures) { long l = pos.toLong(); - Object2IntMap object2IntMap = this.loadedChunks.get(l); + Object2IntMap object2IntMap = this.loadedChunksSafe.get(l); // Paper - rewrite chunk system if (object2IntMap != null) { return this.checkStructureInfo(object2IntMap, type, skipReferencedStructures); } else { @@ -100,9 +105,11 @@ public class StructureCheck { } else if (!placement.applyAdditionalChunkRestrictions(pos.x, pos.z, this.seed, this.getSaltOverride(type))) { // Paper - add missing structure seed configs return StructureCheckResult.START_NOT_PRESENT; } else { - boolean bl = this.featureChecks - .computeIfAbsent(type, structure2 -> new Long2BooleanOpenHashMap()) - .computeIfAbsent(l, chunkPos -> this.canCreateStructure(pos, type)); + // Paper start - rewrite chunk system + boolean bl = this.featureChecksSafe + .computeIfAbsent(type, structure2 -> new ca.spottedleaf.moonrise.common.map.SynchronisedLong2BooleanMap(PER_FEATURE_CHECK_LIMIT)) + .getOrCompute(l, chunkPos -> this.canCreateStructure(pos, type)); + // Paper end - rewrite chunk system return !bl ? StructureCheckResult.START_NOT_PRESENT : StructureCheckResult.CHUNK_LOAD_NEEDED; } } @@ -228,15 +235,25 @@ public class StructureCheck { } private void storeFullResults(long pos, Object2IntMap referencesByStructure) { - this.loadedChunks.put(pos, deduplicateEmptyMap(referencesByStructure)); - this.featureChecks.values().forEach(generationPossibilityByChunkPos -> generationPossibilityByChunkPos.remove(pos)); + // Paper start - rewrite chunk system + this.loadedChunksSafe.put(pos, deduplicateEmptyMap(referencesByStructure)); + // once we insert into loadedChunks, we don't really need to be very careful about removing everything + // from this map, as everything that checks this map uses loadedChunks first + // so, one way or another it's a race condition that doesn't matter + for (ca.spottedleaf.moonrise.common.map.SynchronisedLong2BooleanMap value : this.featureChecksSafe.values()) { + value.remove(pos); + } + // Paper end - rewrite chunk system } public void incrementReference(ChunkPos pos, Structure structure) { - this.loadedChunks.compute(pos.toLong(), (posx, referencesByStructure) -> { - if (referencesByStructure == null || referencesByStructure.isEmpty()) { + this.loadedChunksSafe.compute(pos.toLong(), (posx, referencesByStructure) -> { // Paper start - rewrite chunk system + if (referencesByStructure == null) { referencesByStructure = new Object2IntOpenHashMap<>(); + } else { + referencesByStructure = referencesByStructure instanceof Object2IntOpenHashMap fastClone ? fastClone.clone() : new Object2IntOpenHashMap<>(referencesByStructure); } + // Paper end - rewrite chunk system referencesByStructure.computeInt(structure, (feature, references) -> references == null ? 1 : references + 1); return referencesByStructure; diff --git a/src/main/java/net/minecraft/world/level/lighting/LevelLightEngine.java b/src/main/java/net/minecraft/world/level/lighting/LevelLightEngine.java index 82e4fad11121167445df97060fb717fa86191297..b3e2bb9245be1bb2f587117b0f6016cba18e217f 100644 --- a/src/main/java/net/minecraft/world/level/lighting/LevelLightEngine.java +++ b/src/main/java/net/minecraft/world/level/lighting/LevelLightEngine.java @@ -9,145 +9,103 @@ import net.minecraft.world.level.LightLayer; import net.minecraft.world.level.chunk.DataLayer; import net.minecraft.world.level.chunk.LightChunkGetter; -public class LevelLightEngine implements LightEventListener { +public class LevelLightEngine implements LightEventListener, ca.spottedleaf.moonrise.patches.starlight.light.StarLightLightingProvider { public static final int LIGHT_SECTION_PADDING = 1; protected final LevelHeightAccessor levelHeightAccessor; - @Nullable - private final LightEngine blockEngine; - @Nullable - private final LightEngine skyEngine; + // Paper start - rewrite chunk system + protected final ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface lightEngine; + + @Override + public final ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface starlight$getLightEngine() { + return this.lightEngine; + } + + @Override + public void starlight$clientUpdateLight(final LightLayer lightType, final SectionPos pos, + final DataLayer nibble, final boolean trustEdges) { + throw new IllegalStateException("This hook is for the CLIENT ONLY"); // Paper - not implemented on server + } + + @Override + public void starlight$clientRemoveLightData(final ChunkPos chunkPos) { + throw new IllegalStateException("This hook is for the CLIENT ONLY"); // Paper - not implemented on server + } + + @Override + public void starlight$clientChunkLoad(final ChunkPos pos, final net.minecraft.world.level.chunk.LevelChunk chunk) { + throw new IllegalStateException("This hook is for the CLIENT ONLY"); // Paper - not implemented on server + } + // Paper end - rewrite chunk system public LevelLightEngine(LightChunkGetter chunkProvider, boolean hasBlockLight, boolean hasSkyLight) { this.levelHeightAccessor = chunkProvider.getLevel(); - this.blockEngine = hasBlockLight ? new BlockLightEngine(chunkProvider) : null; - this.skyEngine = hasSkyLight ? new SkyLightEngine(chunkProvider) : null; + // Paper start - rewrite chunk system + if (chunkProvider.getLevel() instanceof net.minecraft.world.level.Level) { + this.lightEngine = new ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface(chunkProvider, hasSkyLight, hasBlockLight, (LevelLightEngine)(Object)this); + } else { + this.lightEngine = new ca.spottedleaf.moonrise.patches.starlight.light.StarLightInterface(null, hasSkyLight, hasBlockLight, (LevelLightEngine)(Object)this); + } + // Paper end - rewrite chunk system } @Override public void checkBlock(BlockPos pos) { - if (this.blockEngine != null) { - this.blockEngine.checkBlock(pos); - } - - if (this.skyEngine != null) { - this.skyEngine.checkBlock(pos); - } + this.lightEngine.blockChange(pos.immutable()); // Paper - rewrite chunk system } @Override public boolean hasLightWork() { - return this.skyEngine != null && this.skyEngine.hasLightWork() || this.blockEngine != null && this.blockEngine.hasLightWork(); + return this.lightEngine.hasUpdates(); // Paper - rewrite chunk system } @Override public int runLightUpdates() { - int i = 0; - if (this.blockEngine != null) { - i += this.blockEngine.runLightUpdates(); - } - - if (this.skyEngine != null) { - i += this.skyEngine.runLightUpdates(); - } - - return i; + final boolean hadUpdates = this.hasLightWork(); + this.lightEngine.propagateChanges(); + return hadUpdates ? 1 : 0; // Paper - rewrite chunk system } @Override public void updateSectionStatus(SectionPos pos, boolean notReady) { - if (this.blockEngine != null) { - this.blockEngine.updateSectionStatus(pos, notReady); - } - - if (this.skyEngine != null) { - this.skyEngine.updateSectionStatus(pos, notReady); - } + this.lightEngine.sectionChange(pos, notReady); // Paper - rewrite chunk system } @Override public void setLightEnabled(ChunkPos pos, boolean retainData) { - if (this.blockEngine != null) { - this.blockEngine.setLightEnabled(pos, retainData); - } - - if (this.skyEngine != null) { - this.skyEngine.setLightEnabled(pos, retainData); - } + // Paper - rewrite chunk system } @Override public void propagateLightSources(ChunkPos chunkPos) { - if (this.blockEngine != null) { - this.blockEngine.propagateLightSources(chunkPos); - } - - if (this.skyEngine != null) { - this.skyEngine.propagateLightSources(chunkPos); - } + // Paper - rewrite chunk system } public LayerLightEventListener getLayerListener(LightLayer lightType) { - if (lightType == LightLayer.BLOCK) { - return (LayerLightEventListener)(this.blockEngine == null ? LayerLightEventListener.DummyLightLayerEventListener.INSTANCE : this.blockEngine); - } else { - return (LayerLightEventListener)(this.skyEngine == null ? LayerLightEventListener.DummyLightLayerEventListener.INSTANCE : this.skyEngine); - } + return lightType == LightLayer.BLOCK ? this.lightEngine.getBlockReader() : this.lightEngine.getSkyReader(); // Paper - rewrite chunk system } public String getDebugData(LightLayer lightType, SectionPos pos) { - if (lightType == LightLayer.BLOCK) { - if (this.blockEngine != null) { - return this.blockEngine.getDebugData(pos.asLong()); - } - } else if (this.skyEngine != null) { - return this.skyEngine.getDebugData(pos.asLong()); - } - - return "n/a"; + return "n/a"; // Paper - rewrite chunk system } public LayerLightSectionStorage.SectionType getDebugSectionType(LightLayer lightType, SectionPos pos) { - if (lightType == LightLayer.BLOCK) { - if (this.blockEngine != null) { - return this.blockEngine.getDebugSectionType(pos.asLong()); - } - } else if (this.skyEngine != null) { - return this.skyEngine.getDebugSectionType(pos.asLong()); - } - - return LayerLightSectionStorage.SectionType.EMPTY; + throw new UnsupportedOperationException(); // Paper - rewrite chunk system } public void queueSectionData(LightLayer lightType, SectionPos pos, @Nullable DataLayer nibbles) { - if (lightType == LightLayer.BLOCK) { - if (this.blockEngine != null) { - this.blockEngine.queueSectionData(pos.asLong(), nibbles); - } - } else if (this.skyEngine != null) { - this.skyEngine.queueSectionData(pos.asLong(), nibbles); - } + // Paper - rewrite chunk system } public void retainData(ChunkPos pos, boolean retainData) { - if (this.blockEngine != null) { - this.blockEngine.retainData(pos, retainData); - } - - if (this.skyEngine != null) { - this.skyEngine.retainData(pos, retainData); - } + // Paper - rewrite chunk system } public int getRawBrightness(BlockPos pos, int ambientDarkness) { - int i = this.skyEngine == null ? 0 : this.skyEngine.getLightValue(pos) - ambientDarkness; - int j = this.blockEngine == null ? 0 : this.blockEngine.getLightValue(pos); - return Math.max(j, i); + return this.lightEngine.getRawBrightness(pos, ambientDarkness); // Paper - rewrite chunk system } public boolean lightOnInSection(SectionPos sectionPos) { - long l = sectionPos.asLong(); - return this.blockEngine == null - || this.blockEngine.storage.lightOnInSection(l) && (this.skyEngine == null || this.skyEngine.storage.lightOnInSection(l)); + throw new UnsupportedOperationException(); // Paper - rewrite chunk system // Paper - not implemented on server } public int getLightSectionCount() { diff --git a/src/main/java/net/minecraft/world/ticks/LevelChunkTicks.java b/src/main/java/net/minecraft/world/ticks/LevelChunkTicks.java index 47c2b2da9799690291396effb9e1b06d71efc6fd..c42c0d1e4da30aa15f32d4ca524aeabd26fc50cf 100644 --- a/src/main/java/net/minecraft/world/ticks/LevelChunkTicks.java +++ b/src/main/java/net/minecraft/world/ticks/LevelChunkTicks.java @@ -18,7 +18,7 @@ import net.minecraft.core.BlockPos; import net.minecraft.nbt.ListTag; import net.minecraft.world.level.ChunkPos; -public class LevelChunkTicks implements SerializableTickContainer, TickContainerAccess { +public class LevelChunkTicks implements SerializableTickContainer, TickContainerAccess, ca.spottedleaf.moonrise.patches.chunk_system.ticks.ChunkSystemLevelChunkTicks { // Paper - rewrite chunk system private final Queue> tickQueue = new PriorityQueue<>(ScheduledTick.DRAIN_ORDER); @Nullable private List> pendingTicks; @@ -26,6 +26,30 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon @Nullable private BiConsumer, ScheduledTick> onTickAdded; + // Paper start - rewrite chunk system + /* + * Since ticks are saved using relative delays, we need to consider the entire tick list dirty when there are scheduled ticks + * and the last saved tick is not equal to the current tick + */ + /* + * In general, it would be nice to be able to "re-pack" ticks once the chunk becomes non-ticking again, but that is a + * bit out of scope for the chunk system + */ + + private boolean dirty; + private long lastSaved = Long.MIN_VALUE; + + @Override + public final boolean moonrise$isDirty(final long tick) { + return this.dirty || (!this.tickQueue.isEmpty() && tick != this.lastSaved); + } + + @Override + public final void moonrise$clearDirty() { + this.dirty = false; + } + // Paper end - rewrite chunk system + public LevelChunkTicks() { } @@ -50,7 +74,7 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon public ScheduledTick poll() { ScheduledTick scheduledTick = this.tickQueue.poll(); if (scheduledTick != null) { - this.ticksPerPosition.remove(scheduledTick); + this.ticksPerPosition.remove(scheduledTick); this.dirty = true; // Paper - rewrite chunk system } return scheduledTick; @@ -59,7 +83,7 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon @Override public void schedule(ScheduledTick orderedTick) { if (this.ticksPerPosition.add(orderedTick)) { - this.scheduleUnchecked(orderedTick); + this.scheduleUnchecked(orderedTick); this.dirty = true; // Paper - rewrite chunk system } } @@ -81,7 +105,7 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon while (iterator.hasNext()) { ScheduledTick scheduledTick = iterator.next(); if (predicate.test(scheduledTick)) { - iterator.remove(); + iterator.remove(); this.dirty = true; // Paper - rewrite chunk system this.ticksPerPosition.remove(scheduledTick); } } @@ -98,6 +122,7 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon @Override public ListTag save(long l, Function function) { + this.lastSaved = l; // Paper - rewrite chunk system ListTag listTag = new ListTag(); if (this.pendingTicks != null) { for (SavedTick savedTick : this.pendingTicks) { @@ -114,6 +139,7 @@ public class LevelChunkTicks implements SerializableTickContainer, TickCon public void unpack(long time) { if (this.pendingTicks != null) { + this.lastSaved = time; // Paper - rewrite chunk system int i = -this.pendingTicks.size(); for (SavedTick savedTick : this.pendingTicks) { diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java index 69c7fe5bf5b914276a9f7a0e57ce668e569d91f9..cce2fed2d4e9d6147ea1854321012c6950eb05cc 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java @@ -116,60 +116,12 @@ public class CraftChunk implements Chunk { @Override public boolean isEntitiesLoaded() { - return this.getCraftWorld().getHandle().entityManager.areEntitiesLoaded(ChunkPos.asLong(this.x, this.z)); + return this.getCraftWorld().getHandle().areEntitiesLoaded(ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkKey(this.x, this.z)); // Paper - rewrite chunk system } @Override public Entity[] getEntities() { - if (!this.isLoaded()) { - this.getWorld().getChunkAt(this.x, this.z); // Transient load for this tick - } - - PersistentEntitySectionManager entityManager = this.getCraftWorld().getHandle().entityManager; - long pair = ChunkPos.asLong(this.x, this.z); - - if (entityManager.areEntitiesLoaded(pair)) { - return entityManager.getEntities(new ChunkPos(this.x, this.z)).stream() - .map(net.minecraft.world.entity.Entity::getBukkitEntity) - .filter(Objects::nonNull).toArray(Entity[]::new); - } - - entityManager.ensureChunkQueuedForLoad(pair); // Start entity loading - - // SPIGOT-6772: Use entity mailbox and re-schedule entities if they get unloaded - ProcessorMailbox mailbox = ((EntityStorage) entityManager.permanentStorage).entityDeserializerQueue; - BooleanSupplier supplier = () -> { - // only execute inbox if our entities are not present - if (entityManager.areEntitiesLoaded(pair)) { - return true; - } - - if (!entityManager.isPending(pair)) { - // Our entities got unloaded, this should normally not happen. - entityManager.ensureChunkQueuedForLoad(pair); // Re-start entity loading - } - - // tick loading inbox, which loads the created entities to the world - // (if present) - entityManager.tick(); - // check if our entities are loaded - return entityManager.areEntitiesLoaded(pair); - }; - - // now we wait until the entities are loaded, - // the converting from NBT to entity object is done on the main Thread which is why we wait - while (!supplier.getAsBoolean()) { - if (mailbox.size() != 0) { - mailbox.run(); - } else { - Thread.yield(); - LockSupport.parkNanos("waiting for entity loading", 100000L); - } - } - - return entityManager.getEntities(new ChunkPos(this.x, this.z)).stream() - .map(net.minecraft.world.entity.Entity::getBukkitEntity) - .filter(Objects::nonNull).toArray(Entity[]::new); + return this.getCraftWorld().getHandle().getChunkEntities(this.x, this.z); // Paper - rewrite chunk system } @Override diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java index 77f3ac4e45a691181a94831cf49f7840c9f88e3a..05e44a1448f30ceb8cecba2bed76f51aac5543f9 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java @@ -1419,7 +1419,7 @@ public final class CraftServer implements Server { // Paper - Put world into worldlist before initing the world; move up this.getServer().prepareLevels(internal.getChunkSource().chunkMap.progressListener, internal); - internal.entityManager.tick(); // SPIGOT-6526: Load pending entities so they are available to the API + // Paper - rewrite chunk system this.pluginManager.callEvent(new WorldLoadEvent(internal.getWorld())); return internal.getWorld(); @@ -1464,7 +1464,7 @@ public final class CraftServer implements Server { } handle.getChunkSource().close(save); - handle.entityManager.close(save); // SPIGOT-6722: close entityManager + // Paper - rewrite chunk system handle.convertable.close(); } catch (Exception ex) { this.getLogger().log(Level.SEVERE, null, ex); @@ -2500,7 +2500,7 @@ public final class CraftServer implements Server { @Override public boolean isPrimaryThread() { - return Thread.currentThread().equals(this.console.serverThread) || this.console.hasStopped() || !org.spigotmc.AsyncCatcher.enabled; // All bets are off if we have shut down (e.g. due to watchdog) + return io.papermc.paper.util.TickThread.isTickThread(); // Paper - rewrite chunk system } // Paper start - Adventure diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java index 8f88ccec6b8947ca2738dc07c23aebe258145c83..cdc704364cf339084537d089e654f6078f8be783 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java @@ -456,10 +456,14 @@ public class CraftWorld extends CraftRegionAccessor implements World { ChunkHolder playerChunk = this.world.getChunkSource().chunkMap.getVisibleChunkIfPresent(ChunkPos.asLong(x, z)); if (playerChunk == null) return false; - playerChunk.getTickingChunkFuture().thenAccept(either -> { - either.ifSuccess(chunk -> { + // Paper start - chunk system + net.minecraft.world.level.chunk.LevelChunk chunk = playerChunk.getChunkToSend(); + if (chunk == null) { + return false; + } + // Paper end - chunk system List playersInRange = playerChunk.playerProvider.getPlayers(playerChunk.getPos(), false); - if (playersInRange.isEmpty()) return; + if (playersInRange.isEmpty()) return true; // Paper - chunk system ClientboundLevelChunkWithLightPacket refreshPacket = new ClientboundLevelChunkWithLightPacket(chunk, this.world.getLightEngine(), null, null); for (ServerPlayer player : playersInRange) { @@ -467,8 +471,7 @@ public class CraftWorld extends CraftRegionAccessor implements World { player.connection.send(refreshPacket); } - }); - }); + // Paper - chunk system return true; } @@ -572,20 +575,8 @@ public class CraftWorld extends CraftRegionAccessor implements World { @Override public Collection getPluginChunkTickets(int x, int z) { DistanceManager chunkDistanceManager = this.world.getChunkSource().chunkMap.distanceManager; - SortedArraySet> tickets = chunkDistanceManager.tickets.get(ChunkPos.asLong(x, z)); - if (tickets == null) { - return Collections.emptyList(); - } - - ImmutableList.Builder ret = ImmutableList.builder(); - for (Ticket ticket : tickets) { - if (ticket.getType() == TicketType.PLUGIN_TICKET) { - ret.add((Plugin) ticket.key); - } - } - - return ret.build(); + return chunkDistanceManager.getChunkHolderManager().getPluginChunkTickets(x, z); // Paper - rewrite chunk system } @Override @@ -593,7 +584,7 @@ public class CraftWorld extends CraftRegionAccessor implements World { Map> ret = new HashMap<>(); DistanceManager chunkDistanceManager = this.world.getChunkSource().chunkMap.distanceManager; - for (Long2ObjectMap.Entry>> chunkTickets : chunkDistanceManager.tickets.long2ObjectEntrySet()) { + for (Long2ObjectMap.Entry>> chunkTickets : chunkDistanceManager.getChunkHolderManager().getTicketsCopy().long2ObjectEntrySet()) { // Paper - rewrite chunk system long chunkKey = chunkTickets.getLongKey(); SortedArraySet> tickets = chunkTickets.getValue(); @@ -1290,12 +1281,12 @@ public class CraftWorld extends CraftRegionAccessor implements World { @Override public int getViewDistance() { - return this.world.getChunkSource().chunkMap.serverViewDistance; + return this.getHandle().moonrise$getPlayerChunkLoader().getAPIViewDistance(); // Paper - rewrite chunk system } @Override public int getSimulationDistance() { - return this.world.getChunkSource().chunkMap.getDistanceManager().simulationDistance; + return this.getHandle().moonrise$getPlayerChunkLoader().getAPITickDistance(); // Paper - rewrite chunk system } public BlockMetadataStore getBlockMetadata() { @@ -2433,17 +2424,20 @@ public class CraftWorld extends CraftRegionAccessor implements World { @Override public void setSimulationDistance(final int simulationDistance) { - throw new UnsupportedOperationException("Not implemented yet"); + if (simulationDistance < 2 || simulationDistance > 32) { + throw new IllegalArgumentException("Simulation distance " + simulationDistance + " is out of range of [2, 32]"); + } + this.getHandle().chunkSource.setSimulationDistance(simulationDistance); // Paper - rewrite chunk system } @Override public int getSendViewDistance() { - return this.getViewDistance(); + return this.getHandle().moonrise$getPlayerChunkLoader().getAPISendViewDistance(); // Paper - rewrite chunk system } @Override public void setSendViewDistance(final int viewDistance) { - throw new UnsupportedOperationException("Not implemented yet"); + this.getHandle().chunkSource.setSendViewDistance(viewDistance); // Paper - rewrite chunk system } // Paper start - implement pointers diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index 33541edc8bb2d673342448046fa29767f171bbf3..1bc343df0e7b8e6e3fadc970a4a4c8d787d93828 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -3491,12 +3491,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player { @Override public int getViewDistance() { - return io.papermc.paper.chunk.system.ChunkSystem.getLoadViewDistance(this.getHandle()); + return io.papermc.paper.chunk.system.ChunkSystem.getLoadViewDistance(this.getHandle()) - 1; // Paper - rewrite chunk system - TODO do this better } @Override public void setViewDistance(final int viewDistance) { - throw new UnsupportedOperationException("Not implemented yet"); + // Paper - rewrite chunk system - TODO do this better + ((ca.spottedleaf.moonrise.patches.chunk_system.player.ChunkSystemServerPlayer)this.getHandle()) + .moonrise$getViewDistanceHolder().setLoadViewDistance(viewDistance + 1); } @Override @@ -3506,7 +3508,9 @@ public class CraftPlayer extends CraftHumanEntity implements Player { @Override public void setSimulationDistance(final int simulationDistance) { - throw new UnsupportedOperationException("Not implemented yet"); + // Paper - rewrite chunk system - TODO do this better + ((ca.spottedleaf.moonrise.patches.chunk_system.player.ChunkSystemServerPlayer)this.getHandle()) + .moonrise$getViewDistanceHolder().setTickViewDistance(simulationDistance); } @Override @@ -3516,6 +3520,8 @@ public class CraftPlayer extends CraftHumanEntity implements Player { @Override public void setSendViewDistance(final int viewDistance) { - throw new UnsupportedOperationException("Not implemented yet"); + // Paper - rewrite chunk system - TODO do this better + ((ca.spottedleaf.moonrise.patches.chunk_system.player.ChunkSystemServerPlayer)this.getHandle()) + .moonrise$getViewDistanceHolder().setSendViewDistance(viewDistance); } } diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java b/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java index 5717c0e1d6df07a4613356dc78d970d2101c68d7..cab7ca4218e5903b6a5e518af55457b9a1b5111c 100644 --- a/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java +++ b/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java @@ -263,7 +263,7 @@ public class CustomChunkGenerator extends InternalChunkGenerator { return ichunkaccess1; }; - return future == null ? CompletableFuture.supplyAsync(() -> function.apply(chunk), net.minecraft.Util.backgroundExecutor()) : future.thenApply(function); + return future == null ? CompletableFuture.supplyAsync(() -> function.apply(chunk), Runnable::run) : future.thenApply(function); // Paper - rewrite chunk system } @Override diff --git a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java index cd7f1309cf01a5f01a28aded03a36fe15adb1756..43cb7b91945a72ab4bd998a3a3eca3cdcf0432a9 100644 --- a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java +++ b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java @@ -815,19 +815,26 @@ public abstract class DelegatedGeneratorAccess implements WorldGenLevel { @Nullable @Override public BlockState getBlockStateIfLoaded(final BlockPos blockposition) { - return null; + return this.handle.getBlockStateIfLoaded(blockposition); // Paper - rewrite chunk system } @Nullable @Override public FluidState getFluidIfLoaded(final BlockPos blockposition) { - return null; + return this.handle.getFluidIfLoaded(blockposition); // Paper - rewrite chunk system } @Nullable @Override public ChunkAccess getChunkIfLoadedImmediately(final int x, final int z) { - return null; + return this.handle.getChunkIfLoadedImmediately(x, z); // Paper - rewrite chunk system } + + // Paper start - rewrite chunk system + @Override + public java.util.List moonrise$getHardCollidingEntities(final net.minecraft.world.entity.Entity entity, final net.minecraft.world.phys.AABB box, final java.util.function.Predicate predicate) { + return this.handle.moonrise$getHardCollidingEntities(entity, box, predicate); + } + // Paper end - rewrite chunk system // Paper end } diff --git a/src/main/java/org/spigotmc/AsyncCatcher.java b/src/main/java/org/spigotmc/AsyncCatcher.java index e8e3cc48cf1c58bd8151d1f28df28781859cd0e3..67c8e90d3a2a93d858371d7fc1c3aaac3fdef71c 100644 --- a/src/main/java/org/spigotmc/AsyncCatcher.java +++ b/src/main/java/org/spigotmc/AsyncCatcher.java @@ -9,7 +9,7 @@ public class AsyncCatcher public static void catchOp(String reason) { - if ( (AsyncCatcher.enabled || io.papermc.paper.util.TickThread.STRICT_THREAD_CHECKS) && Thread.currentThread() != MinecraftServer.getServer().serverThread ) // Paper + if (!io.papermc.paper.util.TickThread.isTickThread()) // Paper // Paper - rewrite chunk system { MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable()); // Paper throw new IllegalStateException( "Asynchronous " + reason + "!" ); diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java index ad282d34919716b75acd10426cd071da9d064a51..c68256c0c8e131497108f677c6b254c589ce67e2 100644 --- a/src/main/java/org/spigotmc/WatchdogThread.java +++ b/src/main/java/org/spigotmc/WatchdogThread.java @@ -115,6 +115,7 @@ public class WatchdogThread extends Thread // Paper end - Different message for short timeout log.log( Level.SEVERE, "------------------------------" ); log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper + ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.dumpAllChunkLoadInfo(isLongTimeout); // Paper - rewrite chunk system WatchdogThread.dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log ); log.log( Level.SEVERE, "------------------------------" ); //