Mirror von
https://github.com/ViaVersion/ViaVersion.git
synchronisiert 2024-12-26 00:00:28 +01:00
Merge pull request #1156 from creeper123123321/master
trying to optimize block connection storage
Dieser Commit ist enthalten in:
Myles
GitHub
Commit
6c18fdb175
@ -67,11 +67,12 @@ public class NibbleArray {
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* @param value The desired value
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*/
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public void set(int index, int value) {
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index /= 2;
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if (index % 2 == 0) {
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handle[index] = (byte) (handle[index] & 0xF0 | value & 0xF);
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index /= 2;
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handle[index] = (byte) ((handle[index] & 0xF0) | (value & 0xF));
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} else {
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handle[index] = (byte) (handle[index] & 0xF | (value & 0xF) << 4);
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index /= 2;
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handle[index] = (byte) ((handle[index] & 0xF) | ((value & 0xF) << 4));
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}
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}
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@ -175,12 +175,13 @@ public class WorldPackets {
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if (Via.getConfig().isServersideBlockConnections()) {
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UserConnection userConnection = wrapper.user();
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ConnectionData.updateBlockStorage(userConnection, position, newId);
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if (ConnectionData.connects(newId)) {
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newId = ConnectionData.connect(userConnection, position, newId);
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}
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ConnectionData.updateBlockStorage(userConnection, position, newId);
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ConnectionData.update(userConnection, position);
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}
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@ -1,42 +1,88 @@
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package us.myles.ViaVersion.protocols.protocol1_13to1_12_2.storage;
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import lombok.Data;
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import lombok.EqualsAndHashCode;
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import us.myles.ViaVersion.api.Pair;
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import us.myles.ViaVersion.api.Via;
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import us.myles.ViaVersion.api.data.StoredObject;
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import us.myles.ViaVersion.api.data.UserConnection;
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import us.myles.ViaVersion.api.minecraft.Position;
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import us.myles.ViaVersion.api.minecraft.chunks.NibbleArray;
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import us.myles.ViaVersion.protocols.protocol1_13to1_12_2.data.MappingData;
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import us.myles.ViaVersion.protocols.protocol1_13to1_12_2.packets.WorldPackets;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.util.HashMap;
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import java.util.Map;
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public class BlockConnectionStorage extends StoredObject {
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private Map<Pair<Integer, Integer>, Map<BlockPositon, Integer>> blockStorage = new HashMap<>();
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private Map<Long, Pair<byte[], NibbleArray>> blockStorage = createLongObjectMap();
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private static Constructor<?> fastUtilLongObjectHashMap;
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private static HashMap<Short, Short> reverseBlockMappings;
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static {
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try {
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fastUtilLongObjectHashMap = Class.forName("it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap").getConstructor();
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Via.getPlatform().getLogger().info("Using FastUtil Long2ObjectOpenHashMap for block connections");
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} catch (ClassNotFoundException | NoSuchMethodException ignored) {
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}
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reverseBlockMappings = new HashMap<>();
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for (int i = 0; i < 4096; i++) {
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int newBlock = MappingData.blockMappings.getNewBlock(i);
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if (newBlock != -1) reverseBlockMappings.put((short) newBlock, (short) i);
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}
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}
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public BlockConnectionStorage(UserConnection user) {
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super(user);
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}
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public void store(Position position, int blockState) {
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Pair pair = getPair(position);
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Map<BlockPositon, Integer> map = getChunkMap(pair);
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map.put(new BlockPositon(position), blockState);
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Short mapping = reverseBlockMappings.get((short) blockState);
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if (mapping == null) return;
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blockState = mapping;
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long pair = getChunkSectionIndex(position);
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Pair<byte[], NibbleArray> map = getChunkSection(pair, (blockState & 0xF) != 0);
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int blockIndex = encodeBlockPos(position);
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map.getKey()[blockIndex] = (byte) (blockState >> 4);
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NibbleArray nibbleArray = map.getValue();
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if (nibbleArray != null) nibbleArray.set(blockIndex, blockState);
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}
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public int get(Position position) {
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Pair pair = getPair(position);
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Map<BlockPositon, Integer> map = getChunkMap(pair);
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BlockPositon blockPositon = new BlockPositon(position);
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return map.containsKey(blockPositon) ? map.get(blockPositon) : 0;
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long pair = getChunkSectionIndex(position);
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Pair<byte[], NibbleArray> map = blockStorage.get(pair);
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if (map == null) return 0;
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short blockPosition = encodeBlockPos(position);
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NibbleArray nibbleArray = map.getValue();
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return WorldPackets.toNewId(
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((map.getKey()[blockPosition] & 0xFF) << 4)
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| (nibbleArray == null ? 0 : nibbleArray.get(blockPosition))
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);
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}
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public void remove(Position position) {
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Pair pair = getPair(position);
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Map<BlockPositon, Integer> map = getChunkMap(pair);
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map.remove(new BlockPositon(position));
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if (map.isEmpty()) {
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blockStorage.remove(pair);
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long pair = getChunkSectionIndex(position);
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Pair<byte[], NibbleArray> map = blockStorage.get(pair);
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if (map == null) return;
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int blockIndex = encodeBlockPos(position);
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NibbleArray nibbleArray = map.getValue();
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if (nibbleArray != null) {
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nibbleArray.set(blockIndex, 0);
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boolean allZero = true;
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for (int i = 0; i < 4096; i++) {
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if (nibbleArray.get(i) != 0) {
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allZero = false;
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break;
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}
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}
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if (allZero) map.setValue(null);
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}
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map.getKey()[blockIndex] = 0;
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for (short entry : map.getKey()) {
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if (entry != 0) return;
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}
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blockStorage.remove(pair);
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}
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public void clear() {
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@ -44,33 +90,47 @@ public class BlockConnectionStorage extends StoredObject {
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}
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public void unloadChunk(int x, int z) {
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blockStorage.remove(new Pair<>(x, z));
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for (int y = 0; y < 256; y += 16) {
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blockStorage.remove(getChunkSectionIndex(x, y, z));
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}
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}
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private Map<BlockPositon, Integer> getChunkMap(Pair pair) {
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Map<BlockPositon, Integer> map = blockStorage.get(pair);
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private Pair<byte[], NibbleArray> getChunkSection(long index, boolean requireNibbleArray) {
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Pair<byte[], NibbleArray> map = blockStorage.get(index);
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if (map == null) {
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map = new HashMap<>();
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blockStorage.put(pair, map);
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map = new Pair<>(new byte[4096], null);
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blockStorage.put(index, map);
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}
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if (map.getValue() == null && requireNibbleArray) {
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map.setValue(new NibbleArray(4096));
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}
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return map;
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}
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private Pair<Integer, Integer> getPair(Position position) {
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int chunkX = (int) (position.getX() >> 4);
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int chunkZ = (int) (position.getZ() >> 4);
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return new Pair<>(chunkX, chunkZ);
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private long getChunkSectionIndex(int x, int y, int z) {
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return (((x >> 4) & 0x3FFFFFFL) << 38) | (((y >> 4) & 0xFFFL) << 26) | ((z >> 4) & 0x3FFFFFFL);
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}
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@EqualsAndHashCode
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@Data
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private class BlockPositon {
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int x, y, z;
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private long getChunkSectionIndex(Position position) {
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return getChunkSectionIndex(position.getX().intValue(), position.getY().intValue(), position.getZ().intValue());
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}
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public BlockPositon(Position position) {
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x = position.getX().intValue();
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y = position.getY().intValue();
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z = position.getZ().intValue();
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private short encodeBlockPos(int x, int y, int z) {
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return (short) (((y & 0xF) << 8) | ((x & 0xF) << 4) | (z & 0xF));
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}
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private short encodeBlockPos(Position pos) {
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return encodeBlockPos(pos.getX().intValue(), pos.getY().intValue(), pos.getZ().intValue());
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}
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private <T> Map<Long, T> createLongObjectMap() {
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if (fastUtilLongObjectHashMap != null) {
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try {
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return (Map<Long, T>) fastUtilLongObjectHashMap.newInstance();
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} catch (IllegalAccessException | InstantiationException | InvocationTargetException e) {
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e.printStackTrace();
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}
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}
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return new HashMap<>();
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}
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}
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