From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Thu, 27 Aug 2020 16:22:52 -0700 Subject: [PATCH] Optimise nearby player lookups Use a distance map to map out close players. Note that it's important that we cache the distance map value per chunk since the penalty of a map lookup could outweigh the benefits of searching less players (as it basically did in the outside range patch). diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java index 1f602d50f3212078490c0092ceefd3b17e0b1532..825fdb0336b0388dbbc54c8da99781900612031c 100644 --- a/src/main/java/net/minecraft/server/level/ChunkHolder.java +++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java @@ -83,6 +83,12 @@ public class ChunkHolder { long key = net.minecraft.server.MCUtil.getCoordinateKey(this.pos); this.playersInMobSpawnRange = this.chunkMap.playerMobSpawnMap.getObjectsInRange(key); this.playersInChunkTickRange = this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(key); + // Paper start - optimise checkDespawn + LevelChunk chunk = this.getFullChunkUnchecked(); + if (chunk != null) { + chunk.updateGeneralAreaCache(); + } + // Paper end - optimise checkDespawn } // Paper end - optimise anyPlayerCloseEnoughForSpawning long lastAutoSaveTime; // Paper - incremental autosave diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index 075c09e241ca71d21049b71e0b520ba71caebd24..1ceb4f282fdcbe3bc7b75db95a93e547bee227ae 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -159,6 +159,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider int viewDistance; public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobDistanceMap; // Paper + // Paper start - optimise checkDespawn + public static final int GENERAL_AREA_MAP_SQUARE_RADIUS = 40; + public static final double GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE = 16.0 * (GENERAL_AREA_MAP_SQUARE_RADIUS - 1); + public static final double GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE_SQUARED = GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE * GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE; + public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerGeneralAreaMap; + // Paper end - optimise checkDespawn + // CraftBukkit start - recursion-safe executor for Chunk loadCallback() and unloadCallback() public final CallbackExecutor callbackExecutor = new CallbackExecutor(); public static final class CallbackExecutor implements java.util.concurrent.Executor, Runnable { @@ -236,6 +243,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider // Paper end - use distance map to optimise entity tracker // Note: players need to be explicitly added to distance maps before they can be updated this.playerChunkTickRangeMap.add(player, chunkX, chunkZ, DistanceManager.MOB_SPAWN_RANGE); // Paper - optimise ChunkMap#anyPlayerCloseEnoughForSpawning + this.playerGeneralAreaMap.add(player, chunkX, chunkZ, GENERAL_AREA_MAP_SQUARE_RADIUS); // Paper - optimise checkDespawn // Paper start - per player mob spawning if (this.playerMobDistanceMap != null) { this.playerMobDistanceMap.add(player, chunkX, chunkZ, this.distanceManager.getSimulationDistance()); @@ -254,6 +262,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.playerMobSpawnMap.remove(player); this.playerChunkTickRangeMap.remove(player); // Paper end - optimise ChunkMap#anyPlayerCloseEnoughForSpawning + this.playerGeneralAreaMap.remove(player); // Paper - optimise checkDespawns // Paper start - per player mob spawning if (this.playerMobDistanceMap != null) { this.playerMobDistanceMap.remove(player); @@ -274,6 +283,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } // Paper end - use distance map to optimise entity tracker this.playerChunkTickRangeMap.update(player, chunkX, chunkZ, DistanceManager.MOB_SPAWN_RANGE); // Paper - optimise ChunkMap#anyPlayerCloseEnoughForSpawning + this.playerGeneralAreaMap.update(player, chunkX, chunkZ, GENERAL_AREA_MAP_SQUARE_RADIUS); // Paper - optimise checkDespawn // Paper start - per player mob spawning if (this.playerMobDistanceMap != null) { this.playerMobDistanceMap.update(player, chunkX, chunkZ, this.distanceManager.getSimulationDistance()); @@ -434,6 +444,23 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } }); // Paper end - optimise ChunkMap#anyPlayerCloseEnoughForSpawning + // Paper start - optimise checkDespawn + this.playerGeneralAreaMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, + (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + LevelChunk chunk = ChunkMap.this.level.getChunkSource().getChunkAtIfCachedImmediately(rangeX, rangeZ); + if (chunk != null) { + chunk.updateGeneralAreaCache(newState); + } + }, + (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + LevelChunk chunk = ChunkMap.this.level.getChunkSource().getChunkAtIfCachedImmediately(rangeX, rangeZ); + if (chunk != null) { + chunk.updateGeneralAreaCache(newState); + } + }); + // Paper end - optimise checkDespawn } protected ChunkGenerator generator() { diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java index 83517c4eaf419770178f0520210218e0a70c4642..0918bb28fd058e6b79f45993a46738a50b05b60a 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -399,6 +399,83 @@ public class ServerLevel extends Level implements WorldGenLevel { return this.getServer().getPlayerList().getPlayer(uuid); } // Paper end + // Paper start - optimise checkDespawn + public final List playersAffectingSpawning = new java.util.ArrayList<>(); + // Paper end - optimise checkDespawn + // Paper start - optimise get nearest players for entity AI + @Override + public final ServerPlayer getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions condition, @Nullable LivingEntity source, + double centerX, double centerY, double centerZ) { + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet nearby; + nearby = this.getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(Mth.floor(centerX) >> 4, Mth.floor(centerZ) >> 4); + + if (nearby == null) { + return null; + } + + Object[] backingSet = nearby.getBackingSet(); + + double closestDistanceSquared = Double.MAX_VALUE; + ServerPlayer closest = null; + + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object _player = backingSet[i]; + if (!(_player instanceof ServerPlayer)) { + continue; + } + ServerPlayer player = (ServerPlayer)_player; + + double distanceSquared = player.distanceToSqr(centerX, centerY, centerZ); + if (distanceSquared < closestDistanceSquared && condition.test(source, player)) { + closest = player; + closestDistanceSquared = distanceSquared; + } + } + + return closest; + } + + @Override + public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions pathfindertargetcondition, LivingEntity entityliving) { + return this.getNearestPlayer(pathfindertargetcondition, entityliving, entityliving.getX(), entityliving.getY(), entityliving.getZ()); + } + + @Override + public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions pathfindertargetcondition, + double d0, double d1, double d2) { + return this.getNearestPlayer(pathfindertargetcondition, null, d0, d1, d2); + } + + @Override + public List getNearbyPlayers(net.minecraft.world.entity.ai.targeting.TargetingConditions condition, LivingEntity source, AABB axisalignedbb) { + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet nearby; + double centerX = (axisalignedbb.maxX + axisalignedbb.minX) * 0.5; + double centerZ = (axisalignedbb.maxZ + axisalignedbb.minZ) * 0.5; + nearby = this.getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(Mth.floor(centerX) >> 4, Mth.floor(centerZ) >> 4); + + List ret = new java.util.ArrayList<>(); + + if (nearby == null) { + return ret; + } + + Object[] backingSet = nearby.getBackingSet(); + + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object _player = backingSet[i]; + if (!(_player instanceof ServerPlayer)) { + continue; + } + ServerPlayer player = (ServerPlayer)_player; + + if (axisalignedbb.contains(player.getX(), player.getY(), player.getZ()) && condition.test(source, player)) { + ret.add(player); + } + } + + return ret; + } + // Paper end - optimise get nearest players for entity AI // Add env and gen to constructor, WorldData -> WorldDataServer public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, ServerLevelData iworlddataserver, ResourceKey resourcekey, DimensionType dimensionmanager, ChunkProgressListener worldloadlistener, ChunkGenerator chunkgenerator, boolean flag, long i, List list, boolean flag1, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) { @@ -487,6 +564,14 @@ public class ServerLevel extends Level implements WorldGenLevel { } public void tick(BooleanSupplier shouldKeepTicking) { + // Paper start - optimise checkDespawn + this.playersAffectingSpawning.clear(); + for (ServerPlayer player : this.players) { + if (net.minecraft.world.entity.EntitySelector.affectsSpawning.test(player)) { + this.playersAffectingSpawning.add(player); + } + } + // Paper end - optimise checkDespawn ProfilerFiller gameprofilerfiller = this.getProfiler(); this.handlingTick = true; diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java index 736b51e411b009db0482d9a72f179cc7b6241265..031660f7d0ea270f87e5174a4fe65ccad1f7a561 100644 --- a/src/main/java/net/minecraft/world/entity/Mob.java +++ b/src/main/java/net/minecraft/world/entity/Mob.java @@ -792,7 +792,12 @@ public abstract class Mob extends LivingEntity { if (this.level.getDifficulty() == Difficulty.PEACEFUL && this.shouldDespawnInPeaceful()) { this.discard(); } else if (!this.isPersistenceRequired() && !this.requiresCustomPersistence()) { - Player entityhuman = this.level.findNearbyPlayer(this, -1.0D, EntitySelector.affectsSpawning); // Paper + // Paper start - optimise checkDespawn + Player entityhuman = this.level.findNearbyPlayer(this, level.paperConfig.hardDespawnDistances.getInt(this.getType().getCategory()) + 1, EntitySelector.affectsSpawning); // Paper + if (entityhuman == null) { + entityhuman = ((ServerLevel)this.level).playersAffectingSpawning.isEmpty() ? null : ((ServerLevel)this.level).playersAffectingSpawning.get(0); + } + // Paper end - optimise checkDespawn if (entityhuman != null) { double d0 = entityhuman.distanceToSqr((Entity) this); diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java index 103428df78d1efe805ab425f1b4085077239bdf6..4247dcb003626535dbb997f48ad9f61380bd17e9 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -244,6 +244,69 @@ public abstract class Level implements LevelAccessor, AutoCloseable { return ret; } // Paper end + // Paper start - optimise checkDespawn + public final List getNearbyPlayers(@Nullable Entity source, double sourceX, double sourceY, + double sourceZ, double maxRange, @Nullable Predicate predicate) { + LevelChunk chunk; + if (maxRange < 0.0 || maxRange >= net.minecraft.server.level.ChunkMap.GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE || + (chunk = (LevelChunk)this.getChunkIfLoadedImmediately(Mth.floor(sourceX) >> 4, Mth.floor(sourceZ) >> 4)) == null) { + return this.getNearbyPlayersSlow(source, sourceX, sourceY, sourceZ, maxRange, predicate); + } + + List ret = new java.util.ArrayList<>(); + chunk.getNearestPlayers(sourceX, sourceY, sourceZ, predicate, maxRange, ret); + return ret; + } + + private List getNearbyPlayersSlow(@Nullable Entity source, double sourceX, double sourceY, + double sourceZ, double maxRange, @Nullable Predicate predicate) { + List ret = new java.util.ArrayList<>(); + double maxRangeSquared = maxRange * maxRange; + + for (net.minecraft.server.level.ServerPlayer player : (List)this.players()) { + if ((maxRange < 0.0 || player.distanceToSqr(sourceX, sourceY, sourceZ) < maxRangeSquared)) { + if (predicate == null || predicate.test(player)) { + ret.add(player); + } + } + } + + return ret; + } + + private net.minecraft.server.level.ServerPlayer getNearestPlayerSlow(@Nullable Entity source, double sourceX, double sourceY, + double sourceZ, double maxRange, @Nullable Predicate predicate) { + net.minecraft.server.level.ServerPlayer closest = null; + double closestRangeSquared = maxRange < 0.0 ? Double.MAX_VALUE : maxRange * maxRange; + + for (net.minecraft.server.level.ServerPlayer player : (List)this.players()) { + double distanceSquared = player.distanceToSqr(sourceX, sourceY, sourceZ); + if (distanceSquared < closestRangeSquared && (predicate == null || predicate.test(player))) { + closest = player; + closestRangeSquared = distanceSquared; + } + } + + return closest; + } + + + public final net.minecraft.server.level.ServerPlayer getNearestPlayer(@Nullable Entity source, double sourceX, double sourceY, + double sourceZ, double maxRange, @Nullable Predicate predicate) { + LevelChunk chunk; + if (maxRange < 0.0 || maxRange >= net.minecraft.server.level.ChunkMap.GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE || + (chunk = (LevelChunk)this.getChunkIfLoadedImmediately(Mth.floor(sourceX) >> 4, Mth.floor(sourceZ) >> 4)) == null) { + return this.getNearestPlayerSlow(source, sourceX, sourceY, sourceZ, maxRange, predicate); + } + + return chunk.findNearestPlayer(sourceX, sourceY, sourceZ, maxRange, predicate); + } + + @Override + public @Nullable Player getNearestPlayer(double d0, double d1, double d2, double d3, @Nullable Predicate predicate) { + return this.getNearestPlayer(null, d0, d1, d2, d3, predicate); + } + // Paper end - optimise checkDespawn protected Level(WritableLevelData worlddatamutable, ResourceKey resourcekey, final DimensionType dimensionmanager, Supplier supplier, boolean flag, boolean flag1, long i, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.concurrent.Executor executor) { // Paper - Async-Anti-Xray - Pass executor this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java index abb57345a97f36d05eab9bc96ffd6396926c219f..c6bddf5e08376f1f254a27fc38647587eefcb00a 100644 --- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java +++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java @@ -282,7 +282,7 @@ public final class NaturalSpawner { blockposition_mutableblockposition.set(l, i, i1); double d0 = (double) l + 0.5D; double d1 = (double) i1 + 0.5D; - Player entityhuman = world.getNearestPlayer(d0, (double) i, d1, -1.0D, false); + Player entityhuman = (chunk instanceof LevelChunk) ? ((LevelChunk)chunk).findNearestPlayer(d0, i, d1, 576.0D, net.minecraft.world.entity.EntitySelector.NO_SPECTATORS) : world.getNearestPlayer(d0, (double) i, d1, -1.0D, false); // Paper - use chunk's player cache to optimize search in range if (entityhuman != null) { double d2 = entityhuman.distanceToSqr(d0, (double) i, d1); @@ -355,7 +355,7 @@ public final class NaturalSpawner { } private static boolean isRightDistanceToPlayerAndSpawnPoint(ServerLevel world, ChunkAccess chunk, BlockPos.MutableBlockPos pos, double squaredDistance) { - return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerThan((Position) (new Vec3((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D)), 24.0D) ? false : Objects.equals(new ChunkPos(pos), chunk.getPos()) || world.isPositionEntityTicking((BlockPos) pos)); + return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerThan((Position) (new Vec3((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D)), 24.0D) ? false : Objects.equals(new ChunkPos(pos), chunk.getPos()) || world.isPositionEntityTicking((BlockPos) pos)); // Paper - diff on change, copy into caller } private static Boolean isValidSpawnPostitionForType(ServerLevel world, MobCategory group, StructureFeatureManager structureAccessor, ChunkGenerator chunkGenerator, MobSpawnSettings.SpawnerData spawnEntry, BlockPos.MutableBlockPos pos, double squaredDistance) { // Paper 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 8e03e63a00dd242791ba0d5a8a17922227b16165..4a9a1fef5603b073e6d2d12e3e8e5dca73a7bd1b 100644 --- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java @@ -235,6 +235,93 @@ public class LevelChunk extends ChunkAccess { } } // Paper end + // Paper start - optimise checkDespawn + private boolean playerGeneralAreaCacheSet; + private com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playerGeneralAreaCache; + + public com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet getPlayerGeneralAreaCache() { + if (!this.playerGeneralAreaCacheSet) { + this.updateGeneralAreaCache(); + } + return this.playerGeneralAreaCache; + } + + public void updateGeneralAreaCache() { + this.updateGeneralAreaCache(((ServerLevel)this.level).getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(this.coordinateKey)); + } + + public void updateGeneralAreaCache(com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet value) { + this.playerGeneralAreaCacheSet = true; + this.playerGeneralAreaCache = value; + } + + public net.minecraft.server.level.ServerPlayer findNearestPlayer(double sourceX, double sourceY, double sourceZ, + double maxRange, java.util.function.Predicate predicate) { + if (!this.playerGeneralAreaCacheSet) { + this.updateGeneralAreaCache(); + } + + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet nearby = this.playerGeneralAreaCache; + + if (nearby == null) { + return null; + } + + Object[] backingSet = nearby.getBackingSet(); + double closestDistance = maxRange < 0.0 ? Double.MAX_VALUE : maxRange * maxRange; + net.minecraft.server.level.ServerPlayer closest = null; + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object _player = backingSet[i]; + if (!(_player instanceof net.minecraft.server.level.ServerPlayer)) { + continue; + } + net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer)_player; + + double distance = player.distanceToSqr(sourceX, sourceY, sourceZ); + if (distance < closestDistance && predicate.test(player)) { + closest = player; + closestDistance = distance; + } + } + + return closest; + } + + public void getNearestPlayers(double sourceX, double sourceY, double sourceZ, java.util.function.Predicate predicate, + double range, java.util.List ret) { + if (!this.playerGeneralAreaCacheSet) { + this.updateGeneralAreaCache(); + } + + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet nearby = this.playerGeneralAreaCache; + + if (nearby == null) { + return; + } + + double rangeSquared = range * range; + + Object[] backingSet = nearby.getBackingSet(); + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object _player = backingSet[i]; + if (!(_player instanceof net.minecraft.server.level.ServerPlayer)) { + continue; + } + net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer)_player; + + if (range >= 0.0) { + double distanceSquared = player.distanceToSqr(sourceX, sourceY, sourceZ); + if (distanceSquared > rangeSquared) { + continue; + } + } + + if (predicate == null || predicate.test(player)) { + ret.add(player); + } + } + } + // Paper end - optimise checkDespawn 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());