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 538f21e6bc29c0307441fe4899dc7f600d2d1a04..09f262de1b12b09013f8277b25d13ffcf53b96d8 100644 --- a/src/main/java/net/minecraft/server/level/ChunkHolder.java +++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java @@ -89,6 +89,12 @@ public class ChunkHolder { this.chunkMap.needsChangeBroadcasting.add(this); } // Paper end - optimise chunk tick iteration + // Paper start - optimise checkDespawn + LevelChunk chunk = this.getFullChunkNowUnchecked(); + if (chunk != null) { + chunk.updateGeneralAreaCache(); + } + // Paper end - optimise checkDespawn } public void onChunkRemove() { @@ -101,6 +107,12 @@ public class ChunkHolder { this.chunkMap.needsChangeBroadcasting.remove(this); } // Paper end - optimise chunk tick iteration + // Paper start - optimise checkDespawn + LevelChunk chunk = this.getFullChunkNowUnchecked(); + if (chunk != null) { + chunk.removeGeneralAreaCache(); + } + // Paper end - optimise checkDespawn } // Paper end diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index f47e2d4a7343f3e3ee68f36688720cedc58861dc..aa1b6b692f9107ef1b5091714f1ecc8b29da9897 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -165,6 +165,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobDistanceMap; // Paper public final ReferenceOpenHashSet needsChangeBroadcasting = new ReferenceOpenHashSet<>(); + // 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 { @@ -242,6 +249,7 @@ 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()); @@ -260,6 +268,7 @@ 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); @@ -280,6 +289,7 @@ 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()); @@ -454,6 +464,23 @@ 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 bcd1b2534af33e7a9d184e0ea4c9c0a4b58dacc8..25149dde919738859f6fb6b2d0405e90d1732f2b 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -411,6 +411,84 @@ public class ServerLevel extends Level implements WorldGenLevel { // Paper end public final ReferenceOpenHashSet pendingLogin = new ReferenceOpenHashSet<>(); // Paper + // 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, 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, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) { // Holder holder = worlddimension.typeHolder(); // CraftBukkit - decompile error @@ -513,6 +591,14 @@ 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 5fb88a3b7242a2712a568aaccebe601f89bfee3a..557e90e54439ce0430075403392b5052d5181feb 100644 --- a/src/main/java/net/minecraft/world/entity/Mob.java +++ b/src/main/java/net/minecraft/world/entity/Mob.java @@ -808,7 +808,12 @@ 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().entities.spawning.despawnRanges.get(this.getType().getCategory()).hard() + 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 76a2d00324a85419548005e0aa3cbd8b891b8257..931de769a3b7c993d151f3ee8e1038d95d3899a3 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -205,6 +205,69 @@ public abstract class Level implements LevelAccessor, AutoCloseable { return this.getChunkIfLoaded(chunkX, chunkZ) != null; } // 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 public abstract ResourceKey getTypeKey(); diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java index 4150e8cd7197eac53042d56f0a53a4951f8824ce..e31a2eea9a62ab2c0bed1a97dab6bae231b8cd8b 100644 --- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java +++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java @@ -259,7 +259,7 @@ 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); @@ -332,7 +332,7 @@ public final class NaturalSpawner { } private static boolean isRightDistanceToPlayerAndSpawnPoint(ServerLevel world, ChunkAccess chunk, BlockPos.MutableBlockPos pos, double squaredDistance) { - return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerToCenterThan(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.isNaturalSpawningAllowed((BlockPos) pos)); + return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerToCenterThan(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.isNaturalSpawningAllowed((BlockPos) pos)); // Paper - diff on change, copy into caller } private static Boolean isValidSpawnPostitionForType(ServerLevel world, MobCategory group, StructureManager 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 2981ba61e347b8660082ff946521fc7f219d2c0d..c85380c3bf3bf4448a28a91af78f41c235a583e4 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 +235,98 @@ 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 removeGeneralAreaCache() { + this.playerGeneralAreaCacheSet = false; + this.playerGeneralAreaCache = null; + } + + 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());