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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: kickash32 <kickash32@gmail.com>
Date: Mon, 19 Aug 2019 01:27:58 +0500
Subject: [PATCH] implement optional per player mob spawns
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diff --git a/src/main/java/co/aikar/timings/WorldTimingsHandler.java b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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index fe79c0add4f7cb18d487c5bb9415c40c5b551ea2..8d9ddad1879e7616d980ca70de8aecacaa86db35 100644
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--- a/src/main/java/co/aikar/timings/WorldTimingsHandler.java
+++ b/src/main/java/co/aikar/timings/WorldTimingsHandler.java
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@@ -57,6 +57,7 @@ public class WorldTimingsHandler {
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public final Timing miscMobSpawning;
+ public final Timing playerMobDistanceMapUpdate;
public final Timing poiUnload;
public final Timing chunkUnload;
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@@ -121,6 +122,7 @@ public class WorldTimingsHandler {
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miscMobSpawning = Timings.ofSafe(name + "Mob spawning - Misc");
+ playerMobDistanceMapUpdate = Timings.ofSafe(name + "Per Player Mob Spawning - Distance Map Update");
poiUnload = Timings.ofSafe(name + "Chunk unload - POI");
chunkUnload = Timings.ofSafe(name + "Chunk unload - Chunk");
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index be4a36df28d4f16727daad1270d5c3a84ae94613..16f013ffe992a934e9d0b32e764a14a8fd204449 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -503,5 +503,10 @@ public class PaperWorldConfig {
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}
}
}
+
+ public boolean perPlayerMobSpawns = false;
+ private void perPlayerMobSpawns() {
+ perPlayerMobSpawns = getBoolean("per-player-mob-spawns", false);
+ }
}
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diff --git a/src/main/java/com/destroystokyo/paper/util/PlayerMobDistanceMap.java b/src/main/java/com/destroystokyo/paper/util/PlayerMobDistanceMap.java
new file mode 100644
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index 0000000000000000000000000000000000000000..72063ba7fb0d04594043cb07034590d597c3d77e
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--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/PlayerMobDistanceMap.java
@@ -0,0 +1,252 @@
+package com.destroystokyo.paper.util;
+
+import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
+import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenHashSet;
+import java.util.List;
+import java.util.Map;
+import net.minecraft.core.SectionPos;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.ChunkPos;
+import org.spigotmc.AsyncCatcher;
+import java.util.HashMap;
+
+/** @author Spottedleaf */
+public final class PlayerMobDistanceMap {
+
+ private static final PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> EMPTY_SET = new PooledHashSets.PooledObjectLinkedOpenHashSet<>();
+
+ private final Map<ServerPlayer, SectionPos> players = new HashMap<>();
+ // we use linked for better iteration.
+ private final Long2ObjectOpenHashMap<PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer>> playerMap = new Long2ObjectOpenHashMap<>(32, 0.5f);
+ private int viewDistance;
+
+ private final PooledHashSets<ServerPlayer> pooledHashSets = new PooledHashSets<>();
+
+ public PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> getPlayersInRange(final ChunkPos chunkPos) {
+ return this.getPlayersInRange(chunkPos.x, chunkPos.z);
+ }
+
+ public PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> getPlayersInRange(final int chunkX, final int chunkZ) {
+ return this.playerMap.getOrDefault(ChunkPos.asLong(chunkX, chunkZ), EMPTY_SET);
+ }
+
+ public void update(final List<ServerPlayer> currentPlayers, final int newViewDistance) {
+ AsyncCatcher.catchOp("Distance map update");
+ final ObjectLinkedOpenHashSet<ServerPlayer> gone = new ObjectLinkedOpenHashSet<>(this.players.keySet());
+
+ final int oldViewDistance = this.viewDistance;
+ this.viewDistance = newViewDistance;
+
+ for (final ServerPlayer player : currentPlayers) {
+ if (player.isSpectator() || !player.affectsSpawning) {
+ continue; // will be left in 'gone' (or not added at all)
+ }
+
+ gone.remove(player);
+
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+ final SectionPos newPosition = player.getLastSectionPos();
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+ final SectionPos oldPosition = this.players.put(player, newPosition);
+
+ if (oldPosition == null) {
+ this.addNewPlayer(player, newPosition, newViewDistance);
+ } else {
+ this.updatePlayer(player, oldPosition, newPosition, oldViewDistance, newViewDistance);
+ }
+ //this.validatePlayer(player, newViewDistance); // debug only
+ }
+
+ for (final ServerPlayer player : gone) {
+ final SectionPos oldPosition = this.players.remove(player);
+ if (oldPosition != null) {
+ this.removePlayer(player, oldPosition, oldViewDistance);
+ }
+ }
+ }
+
+ // expensive op, only for debug
+ private void validatePlayer(final ServerPlayer player, final int viewDistance) {
+ int entiesGot = 0;
+ int expectedEntries = (2 * viewDistance + 1);
+ expectedEntries *= expectedEntries;
+
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+ final SectionPos currPosition = player.getLastSectionPos();
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+
+ final int centerX = currPosition.getX();
+ final int centerZ = currPosition.getZ();
+
+ for (final Long2ObjectLinkedOpenHashMap.Entry<PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer>> entry : this.playerMap.long2ObjectEntrySet()) {
+ final long key = entry.getLongKey();
+ final PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> map = entry.getValue();
+
+ if (map.referenceCount == 0) {
+ throw new IllegalStateException("Invalid map");
+ }
+
+ if (map.set.contains(player)) {
+ ++entiesGot;
+
+ final int chunkX = ChunkPos.getX(key);
+ final int chunkZ = ChunkPos.getZ(key);
+
+ final int dist = Math.max(Math.abs(chunkX - centerX), Math.abs(chunkZ - centerZ));
+
+ if (dist > viewDistance) {
+ throw new IllegalStateException("Expected view distance " + viewDistance + ", got " + dist);
+ }
+ }
+ }
+
+ if (entiesGot != expectedEntries) {
+ throw new IllegalStateException("Expected " + expectedEntries + ", got " + entiesGot);
+ }
+ }
+
+ private void addPlayerTo(final ServerPlayer player, final int chunkX, final int chunkZ) {
+ this.playerMap.compute(ChunkPos.asLong(chunkX, chunkZ), (final Long key, final PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> players) -> {
+ if (players == null) {
+ return player.cachedSingleMobDistanceMap;
+ } else {
+ return PlayerMobDistanceMap.this.pooledHashSets.findMapWith(players, player);
+ }
+ });
+ }
+
+ private void removePlayerFrom(final ServerPlayer player, final int chunkX, final int chunkZ) {
+ this.playerMap.compute(ChunkPos.asLong(chunkX, chunkZ), (final Long keyInMap, final PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> players) -> {
+ return PlayerMobDistanceMap.this.pooledHashSets.findMapWithout(players, player); // rets null instead of an empty map
+ });
+ }
+
+ private void updatePlayer(final ServerPlayer player, final SectionPos oldPosition, final SectionPos newPosition, final int oldViewDistance, final int newViewDistance) {
+ final int toX = newPosition.getX();
+ final int toZ = newPosition.getZ();
+ final int fromX = oldPosition.getX();
+ final int fromZ = oldPosition.getZ();
+
+ final int dx = toX - fromX;
+ final int dz = toZ - fromZ;
+
+ final int totalX = Math.abs(fromX - toX);
+ final int totalZ = Math.abs(fromZ - toZ);
+
+ if (Math.max(totalX, totalZ) > (2 * oldViewDistance)) {
+ // teleported?
+ this.removePlayer(player, oldPosition, oldViewDistance);
+ this.addNewPlayer(player, newPosition, newViewDistance);
+ return;
+ }
+
+ // 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
+
+ if (oldViewDistance == newViewDistance) {
+ // same view distance
+
+ // used for relative positioning
+ final int up = 1 | (dz >> (Integer.SIZE - 1)); // 1 if dz >= 0, -1 otherwise
+ final int right = 1 | (dx >> (Integer.SIZE - 1)); // 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.addPlayerTo(player, 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.addPlayerTo(player, 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.removePlayerFrom(player, 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.removePlayerFrom(player, currX, currZ);
+ }
+ }
+ }
+ } else {
+ // different view distance
+ // for now :)
+ this.removePlayer(player, oldPosition, oldViewDistance);
+ this.addNewPlayer(player, newPosition, newViewDistance);
+ }
+ }
+
+ private void removePlayer(final ServerPlayer player, final SectionPos position, final int viewDistance) {
+ final int x = position.getX();
+ final int z = position.getZ();
+
+ for (int xoff = -viewDistance; xoff <= viewDistance; ++xoff) {
+ for (int zoff = -viewDistance; zoff <= viewDistance; ++zoff) {
+ this.removePlayerFrom(player, x + xoff, z + zoff);
+ }
+ }
+ }
+
+ private void addNewPlayer(final ServerPlayer player, final SectionPos position, final int viewDistance) {
+ final int x = position.getX();
+ final int z = position.getZ();
+
+ for (int xoff = -viewDistance; xoff <= viewDistance; ++xoff) {
+ for (int zoff = -viewDistance; zoff <= viewDistance; ++zoff) {
+ this.addPlayerTo(player, x + xoff, z + zoff);
+ }
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/PooledHashSets.java b/src/main/java/com/destroystokyo/paper/util/PooledHashSets.java
new file mode 100644
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index 0000000000000000000000000000000000000000..11de56afaf059b00fa5bec293516bcdce7c4b2b9
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--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/PooledHashSets.java
@@ -0,0 +1,241 @@
+package com.destroystokyo.paper.util;
+
+import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
+import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenHashSet;
+import java.lang.ref.WeakReference;
+import java.util.Iterator;
+
+/** @author Spottedleaf */
+public class PooledHashSets<E> {
+
+ // we really want to avoid that equals() check as much as possible...
+ protected final Object2ObjectOpenHashMap<PooledObjectLinkedOpenHashSet<E>, PooledObjectLinkedOpenHashSet<E>> mapPool = new Object2ObjectOpenHashMap<>(64, 0.25f);
+
+ protected void decrementReferenceCount(final PooledObjectLinkedOpenHashSet<E> current) {
+ if (current.referenceCount == 0) {
+ throw new IllegalStateException("Cannot decrement reference count for " + current);
+ }
+ if (current.referenceCount == -1 || --current.referenceCount > 0) {
+ return;
+ }
+
+ this.mapPool.remove(current);
+ return;
+ }
+
+ public PooledObjectLinkedOpenHashSet<E> findMapWith(final PooledObjectLinkedOpenHashSet<E> current, final E object) {
+ final PooledObjectLinkedOpenHashSet<E> cached = current.getAddCache(object);
+
+ if (cached != null) {
+ if (cached.referenceCount != -1) {
+ ++cached.referenceCount;
+ }
+
+ decrementReferenceCount(current);
+
+ return cached;
+ }
+
+ if (!current.add(object)) {
+ return current;
+ }
+
+ // we use get/put since we use a different key on put
+ PooledObjectLinkedOpenHashSet<E> ret = this.mapPool.get(current);
+
+ if (ret == null) {
+ ret = new PooledObjectLinkedOpenHashSet<>(current);
+ current.remove(object);
+ this.mapPool.put(ret, ret);
+ ret.referenceCount = 1;
+ } else {
+ if (ret.referenceCount != -1) {
+ ++ret.referenceCount;
+ }
+ current.remove(object);
+ }
+
+ current.updateAddCache(object, ret);
+
+ decrementReferenceCount(current);
+ return ret;
+ }
+
+ // rets null if current.size() == 1
+ public PooledObjectLinkedOpenHashSet<E> findMapWithout(final PooledObjectLinkedOpenHashSet<E> current, final E object) {
+ if (current.set.size() == 1) {
+ decrementReferenceCount(current);
+ return null;
+ }
+
+ final PooledObjectLinkedOpenHashSet<E> cached = current.getRemoveCache(object);
+
+ if (cached != null) {
+ if (cached.referenceCount != -1) {
+ ++cached.referenceCount;
+ }
+
+ decrementReferenceCount(current);
+
+ return cached;
+ }
+
+ if (!current.remove(object)) {
+ return current;
+ }
+
+ // we use get/put since we use a different key on put
+ PooledObjectLinkedOpenHashSet<E> ret = this.mapPool.get(current);
+
+ if (ret == null) {
+ ret = new PooledObjectLinkedOpenHashSet<>(current);
+ current.add(object);
+ this.mapPool.put(ret, ret);
+ ret.referenceCount = 1;
+ } else {
+ if (ret.referenceCount != -1) {
+ ++ret.referenceCount;
+ }
+ current.add(object);
+ }
+
+ current.updateRemoveCache(object, ret);
+
+ decrementReferenceCount(current);
+ return ret;
+ }
+
+ public static final class PooledObjectLinkedOpenHashSet<E> implements Iterable<E> {
+
+ private static final WeakReference NULL_REFERENCE = new WeakReference(null);
+
+ final ObjectLinkedOpenHashSet<E> set;
+ int referenceCount; // -1 if special
+ int hash; // optimize hashcode
+
+ // add cache
+ WeakReference<E> lastAddObject = NULL_REFERENCE;
+ WeakReference<PooledObjectLinkedOpenHashSet<E>> lastAddMap = NULL_REFERENCE;
+
+ // remove cache
+ WeakReference<E> lastRemoveObject = NULL_REFERENCE;
+ WeakReference<PooledObjectLinkedOpenHashSet<E>> lastRemoveMap = NULL_REFERENCE;
+
+ public PooledObjectLinkedOpenHashSet() {
+ this.set = new ObjectLinkedOpenHashSet<>(2, 0.6f);
+ }
+
+ public PooledObjectLinkedOpenHashSet(final E single) {
+ this();
+ this.referenceCount = -1;
+ this.add(single);
+ }
+
+ public PooledObjectLinkedOpenHashSet(final PooledObjectLinkedOpenHashSet<E> other) {
+ this.set = other.set.clone();
+ this.hash = other.hash;
+ }
+
+ // from https://github.com/Spottedleaf/ConcurrentUtil/blob/master/src/main/java/ca/spottedleaf/concurrentutil/util/IntegerUtil.java
+ // generated by https://github.com/skeeto/hash-prospector
+ static int hash0(int x) {
+ x *= 0x36935555;
+ x ^= x >>> 16;
+ return x;
+ }
+
+ public PooledObjectLinkedOpenHashSet<E> getAddCache(final E element) {
+ final E currentAdd = this.lastAddObject.get();
+
+ if (currentAdd == null || !(currentAdd == element || currentAdd.equals(element))) {
+ return null;
+ }
+
+ final PooledObjectLinkedOpenHashSet<E> map = this.lastAddMap.get();
+ if (map == null || map.referenceCount == 0) {
+ // we need to ret null if ref count is zero as calling code will assume the map is in use
+ return null;
+ }
+
+ return map;
+ }
+
+ public PooledObjectLinkedOpenHashSet<E> getRemoveCache(final E element) {
+ final E currentRemove = this.lastRemoveObject.get();
+
+ if (currentRemove == null || !(currentRemove == element || currentRemove.equals(element))) {
+ return null;
+ }
+
+ final PooledObjectLinkedOpenHashSet<E> map = this.lastRemoveMap.get();
+ if (map == null || map.referenceCount == 0) {
+ // we need to ret null if ref count is zero as calling code will assume the map is in use
+ return null;
+ }
+
+ return map;
+ }
+
+ public void updateAddCache(final E element, final PooledObjectLinkedOpenHashSet<E> map) {
+ this.lastAddObject = new WeakReference<>(element);
+ this.lastAddMap = new WeakReference<>(map);
+ }
+
+ public void updateRemoveCache(final E element, final PooledObjectLinkedOpenHashSet<E> map) {
+ this.lastRemoveObject = new WeakReference<>(element);
+ this.lastRemoveMap = new WeakReference<>(map);
+ }
+
+ boolean add(final E element) {
+ boolean added = this.set.add(element);
+
+ if (added) {
+ this.hash += hash0(element.hashCode());
+ }
+
+ return added;
+ }
+
+ boolean remove(Object element) {
+ boolean removed = this.set.remove(element);
+
+ if (removed) {
+ this.hash -= hash0(element.hashCode());
+ }
+
+ return removed;
+ }
+
+ @Override
+ public Iterator<E> iterator() {
+ return this.set.iterator();
+ }
+
+ @Override
+ public int hashCode() {
+ return this.hash;
+ }
+
+ @Override
+ public boolean equals(final Object other) {
+ if (!(other instanceof PooledObjectLinkedOpenHashSet)) {
+ return false;
+ }
+ if (this.referenceCount == 0) {
+ return other == this;
+ } else {
+ if (other == this) {
+ // Unfortunately we are never equal to our own instance while in use!
+ return false;
+ }
+ return this.hash == ((PooledObjectLinkedOpenHashSet)other).hash && this.set.equals(((PooledObjectLinkedOpenHashSet)other).set);
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "PooledHashSet: size: " + this.set.size() + ", reference count: " + this.referenceCount + ", hash: " +
+ this.hashCode() + ", identity: " + System.identityHashCode(this) + " map: " + this.set.toString();
+ }
+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 273cd2e0fc38801a5ecb26579e4d0e9ee017bb3c..e1498a5a8e664b922c77a8524ed2ea38c91834ce 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -69,6 +69,7 @@ import net.minecraft.util.thread.ProcessorMailbox;
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import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.Mob;
+import net.minecraft.world.entity.MobCategory;
import net.minecraft.world.entity.ai.village.poi.PoiManager;
import net.minecraft.world.entity.boss.EnderDragonPart;
import net.minecraft.world.level.ChunkPos;
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@@ -140,6 +141,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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private final Long2ByteMap chunkTypeCache;
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private final Queue<Runnable> unloadQueue;
int viewDistance;
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+ public final com.destroystokyo.paper.util.PlayerMobDistanceMap playerMobDistanceMap; // Paper
// CraftBukkit start - recursion-safe executor for Chunk loadCallback() and unloadCallback()
public final CallbackExecutor callbackExecutor = new CallbackExecutor();
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@@ -263,6 +265,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
this.overworldDataStorage = persistentStateManagerFactory;
this.poiManager = new PoiManager(new File(this.storageFolder, "poi"), dataFixer, dsync, world);
this.setViewDistance(viewDistance);
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+ this.playerMobDistanceMap = this.level.paperConfig.perPlayerMobSpawns ? new com.destroystokyo.paper.util.PlayerMobDistanceMap() : null; // Paper
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// Paper start - no-tick view distance
this.setNoTickViewDistance(this.level.paperConfig.noTickViewDistance);
this.playerViewDistanceTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
@@ -304,6 +307,25 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
// Paper end - no-tick view distance
}
+ // Paper start
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+ public void updatePlayerMobTypeMap(Entity entity) {
+ if (!this.level.paperConfig.perPlayerMobSpawns) {
+ return;
+ }
+ int chunkX = (int)Math.floor(entity.getX()) >> 4;
+ int chunkZ = (int)Math.floor(entity.getZ()) >> 4;
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+ int index = entity.getType().getCategory().ordinal();
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+
+ for (ServerPlayer player : this.playerMobDistanceMap.getPlayersInRange(chunkX, chunkZ)) {
+ ++player.mobCounts[index];
+ }
+ }
+
+ public int getMobCountNear(ServerPlayer entityPlayer, MobCategory enumCreatureType) {
+ return entityPlayer.mobCounts[enumCreatureType.ordinal()];
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+ }
+ // Paper end
+
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private static double euclideanDistanceSquared(ChunkPos pos, Entity entity) {
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double d0 = (double) SectionPos.sectionToBlockCoord(pos.x, 8);
double d1 = (double) SectionPos.sectionToBlockCoord(pos.z, 8);
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diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index c47d1772044913475a60292162ef4be594bed4c6..78143fe566fef13604c46029d4184ba39ed4aefc 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -754,7 +754,22 @@ public class ServerChunkCache extends ChunkSource {
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this.level.getProfiler().push("naturalSpawnCount");
this.level.timings.countNaturalMobs.startTiming(); // Paper - timings
int l = this.distanceManager.getNaturalSpawnChunkCount();
- NaturalSpawner.SpawnState spawnercreature_d = NaturalSpawner.createState(l, this.level.getAllEntities(), this::getFullChunk);
+ // Paper start - per player mob spawning
+ NaturalSpawner.SpawnState spawnercreature_d; // moved down
+ if (this.chunkMap.playerMobDistanceMap != null) {
+ // update distance map
+ this.level.timings.playerMobDistanceMapUpdate.startTiming();
+ this.chunkMap.playerMobDistanceMap.update(this.level.players, this.chunkMap.viewDistance);
+ this.level.timings.playerMobDistanceMapUpdate.stopTiming();
+ // re-set mob counts
+ for (ServerPlayer player : this.level.players) {
+ Arrays.fill(player.mobCounts, 0);
+ }
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+ spawnercreature_d = NaturalSpawner.createState(l, this.level.getAllEntities(), this::getFullChunk, true);
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+ } else {
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+ spawnercreature_d = NaturalSpawner.createState(l, this.level.getAllEntities(), this::getFullChunk, false);
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+ }
+ // Paper end
this.level.timings.countNaturalMobs.stopTiming(); // Paper - timings
this.lastSpawnState = spawnercreature_d;
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index bffc897cb88a54c36432c98264f3416051aeab17..14a0190ea5e9a387582736bb130c16a3bc94151e 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -90,12 +90,7 @@ import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.damagesource.EntityDamageSource;
import net.minecraft.world.effect.MobEffectInstance;
import net.minecraft.world.effect.MobEffects;
-import net.minecraft.world.entity.Entity;
-import net.minecraft.world.entity.EntitySelector;
-import net.minecraft.world.entity.HumanoidArm;
-import net.minecraft.world.entity.LivingEntity;
-import net.minecraft.world.entity.Mob;
-import net.minecraft.world.entity.NeutralMob;
+import net.minecraft.world.entity.*;
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import net.minecraft.world.entity.animal.horse.AbstractHorse;
import net.minecraft.world.entity.item.ItemEntity;
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import net.minecraft.world.entity.monster.Monster;
@@ -223,6 +218,11 @@ public class ServerPlayer extends Player {
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public boolean queueHealthUpdatePacket = false;
public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket;
// Paper end
+ // Paper start - mob spawning rework
+ public static final int ENUMCREATURETYPE_TOTAL_ENUMS = MobCategory.values().length;
+ public final int[] mobCounts = new int[ENUMCREATURETYPE_TOTAL_ENUMS]; // Paper
+ public final com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleMobDistanceMap;
+ // Paper end
// CraftBukkit start
public String displayName;
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@@ -317,6 +317,7 @@ public class ServerPlayer extends Player {
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this.adventure$displayName = net.kyori.adventure.text.Component.text(this.getScoreboardName()); // Paper
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this.bukkitPickUpLoot = true;
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this.maxHealthCache = this.getMaxHealth();
+ this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
}
// Yes, this doesn't match Vanilla, but it's the best we can do for now.
diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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index 19d0ed5ff8569b0280117750f9ce05095afd9f70..490ff09c3c4f93dcafc1703b1df3fb2f7333add2 100644
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--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -17,6 +17,7 @@ import net.minecraft.core.Registry;
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import net.minecraft.core.SectionPos;
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import net.minecraft.nbt.CompoundTag;
import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
import net.minecraft.tags.BlockTags;
import net.minecraft.tags.FluidTags;
import net.minecraft.tags.Tag;
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@@ -65,7 +66,12 @@ public final class NaturalSpawner {
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private NaturalSpawner() {}
+ // Paper start - add countMobs parameter
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public static NaturalSpawner.SpawnState createState(int spawningChunkCount, Iterable<Entity> entities, NaturalSpawner.ChunkGetter chunkSource) {
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+ return createState(spawningChunkCount, entities, chunkSource, false);
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+ }
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+ public static NaturalSpawner.SpawnState createState(int spawningChunkCount, Iterable<Entity> entities, NaturalSpawner.ChunkGetter chunkSource, boolean countMobs) {
+ // Paper end - add countMobs parameter
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PotentialCalculator spawnercreatureprobabilities = new PotentialCalculator();
Object2IntOpenHashMap<MobCategory> object2intopenhashmap = new Object2IntOpenHashMap();
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Iterator iterator = entities.iterator();
@@ -103,6 +109,11 @@ public final class NaturalSpawner {
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}
object2intopenhashmap.addTo(enumcreaturetype, 1);
+ // Paper start
+ if (countMobs) {
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+ chunk.level.getChunkSource().chunkMap.updatePlayerMobTypeMap(entity);
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+ }
+ // Paper end
});
}
}
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@@ -161,13 +172,31 @@ public final class NaturalSpawner {
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continue;
}
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- if ((spawnAnimals || !enumcreaturetype.isFriendly()) && (spawnMonsters || enumcreaturetype.isFriendly()) && (rareSpawn || !enumcreaturetype.isPersistent()) && info.a(enumcreaturetype, limit)) {
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+ // Paper start - only allow spawns upto the limit per chunk and update count afterwards
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+ int currEntityCount = info.mobCategoryCounts.getInt(enumcreaturetype);
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+ int k1 = limit * info.getSpawnableChunkCount() / NaturalSpawner.MAGIC_NUMBER;
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+ int difference = k1 - currEntityCount;
+
+ if (world.paperConfig.perPlayerMobSpawns) {
+ int minDiff = Integer.MAX_VALUE;
+ for (ServerPlayer entityplayer : world.getChunkSource().chunkMap.playerMobDistanceMap.getPlayersInRange(chunk.getPos())) {
+ minDiff = Math.min(limit - world.getChunkSource().chunkMap.getMobCountNear(entityplayer, enumcreaturetype), minDiff);
+ }
+ difference = (minDiff == Integer.MAX_VALUE) ? 0 : minDiff;
+ }
+ // Paper end
+
+ // Paper start - per player mob spawning
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+ if ((spawnAnimals || !enumcreaturetype.isFriendly()) && (spawnMonsters || enumcreaturetype.isFriendly()) && (spawnAnimals || !enumcreaturetype.isPersistent()) && info.a(enumcreaturetype, limit) && difference > 0) {
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// CraftBukkit end
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Objects.requireNonNull(info);
NaturalSpawner.SpawnPredicate spawnercreature_c = info::canSpawn;
Objects.requireNonNull(info);
- NaturalSpawner.spawnCategoryForChunk(enumcreaturetype, world, chunk, spawnercreature_c, info::afterSpawn);
+ int spawnCount = NaturalSpawner.spawnCategoryForChunk(enumcreaturetype, world, chunk, spawnercreature_c, info::afterSpawn,
+ difference, world.paperConfig.perPlayerMobSpawns ? world.getChunkSource().chunkMap::updatePlayerMobTypeMap : null);
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+ info.mobCategoryCounts.mergeInt(enumcreaturetype, spawnCount, Integer::sum);
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+ // Paper end - per player mob spawning
}
}
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@@ -175,12 +204,18 @@ public final class NaturalSpawner {
world.getProfiler().pop();
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}
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+ // Paper start - add parameters and int ret type
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public static void spawnCategoryForChunk(MobCategory group, ServerLevel world, LevelChunk chunk, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner) {
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+ spawnCategoryForChunk(group, world, chunk, checker, runner);
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+ }
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+ public static int spawnCategoryForChunk(MobCategory group, ServerLevel world, LevelChunk chunk, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner, int maxSpawns, Consumer<Entity> trackEntity) {
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+ // Paper end - add parameters and int ret type
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BlockPos blockposition = NaturalSpawner.getRandomPosWithin(world, chunk);
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if (blockposition.getY() >= world.getMinBuildHeight() + 1) {
- NaturalSpawner.spawnCategoryForPosition(group, world, (ChunkAccess) chunk, blockposition, checker, runner);
+ return NaturalSpawner.spawnCategoryForPosition(group, world, (ChunkAccess) chunk, blockposition, checker, runner, maxSpawns, trackEntity); // Paper
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}
+ return 0; // Paper
}
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@VisibleForDebug
@@ -191,15 +226,21 @@ public final class NaturalSpawner {
});
}
+ // Paper start - add maxSpawns parameter and return spawned mobs
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public static void spawnCategoryForPosition(MobCategory group, ServerLevel world, ChunkAccess chunk, BlockPos pos, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner) {
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+ spawnCategoryForPosition(group, world,chunk, pos, checker, runner);
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+ }
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+ public static int spawnCategoryForPosition(MobCategory group, ServerLevel world, ChunkAccess chunk, BlockPos pos, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner, int maxSpawns, Consumer<Entity> trackEntity) {
+ // Paper end - add maxSpawns parameter and return spawned mobs
StructureFeatureManager structuremanager = world.structureFeatureManager();
ChunkGenerator chunkgenerator = world.getChunkSource().getGenerator();
int i = pos.getY();
BlockState iblockdata = world.getTypeIfLoadedAndInBounds(pos); // Paper - don't load chunks for mob spawn
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+ int j = 0; // Paper - moved up
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if (iblockdata != null && !iblockdata.isRedstoneConductor(chunk, pos)) { // Paper - don't load chunks for mob spawn
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BlockPos.MutableBlockPos blockposition_mutableblockposition = new BlockPos.MutableBlockPos();
- int j = 0;
+ // Paper - moved up
int k = 0;
while (k < 3) {
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@@ -248,7 +289,7 @@ public final class NaturalSpawner {
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Mob entityinsentient = NaturalSpawner.getMobForSpawn(world, biomesettingsmobs_c.type);
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if (entityinsentient == null) {
- return;
+ return j; // Paper
}
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entityinsentient.moveTo(d0, (double) i, d1, world.random.nextFloat() * 360.0F, 0.0F);
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@@ -260,10 +301,15 @@ public final class NaturalSpawner {
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++j;
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++k1;
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runner.run(entityinsentient, chunk);
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+ // Paper start
+ if (trackEntity != null) {
+ trackEntity.accept(entityinsentient);
+ }
+ // Paper end
}
// CraftBukkit end
- if (j >= entityinsentient.getMaxSpawnClusterSize()) {
- return;
+ if (j >= entityinsentient.getMaxSpawnClusterSize() || j >= maxSpawns) { // Paper
+ return j; // Paper
}
if (entityinsentient.isMaxGroupSizeReached(k1)) {
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@@ -285,6 +331,7 @@ public final class NaturalSpawner {
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}
}
+ return j; // Paper
}
private static boolean isRightDistanceToPlayerAndSpawnPoint(ServerLevel world, ChunkAccess chunk, BlockPos.MutableBlockPos pos, double squaredDistance) {
