diff options
Diffstat (limited to 'patches/server/1031-Optimise-nearby-player-retrieval.patch')
| -rw-r--r-- | patches/server/1031-Optimise-nearby-player-retrieval.patch | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/patches/server/1031-Optimise-nearby-player-retrieval.patch b/patches/server/1031-Optimise-nearby-player-retrieval.patch new file mode 100644 index 0000000000..c73abc51ad --- /dev/null +++ b/patches/server/1031-Optimise-nearby-player-retrieval.patch @@ -0,0 +1,229 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Spottedleaf <[email protected]> +Date: Sat, 23 Sep 2023 23:15:52 -0700 +Subject: [PATCH] Optimise nearby player retrieval + +Instead of searching/testing every player online on the server, +we can instead use the nearby player tracking system to reduce +the number of tests per search. + +diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java +index 8a5abc320137d045acba0c87cef9f2912d78b6fb..6907d1be36fbdf0856c0e11983218d2fd1f9cb46 100644 +--- a/src/main/java/net/minecraft/server/level/ServerLevel.java ++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java +@@ -576,6 +576,115 @@ public class ServerLevel extends Level implements WorldGenLevel { + this.lagCompensationTick = (System.nanoTime() - net.minecraft.server.MinecraftServer.SERVER_INIT) / (java.util.concurrent.TimeUnit.MILLISECONDS.toNanos(50L)); + } + // Paper end - lag compensation ++ // Paper start - optimise nearby player retrieval ++ @Override ++ public java.util.List<net.minecraft.world.entity.player.Player> getNearbyPlayers(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, ++ net.minecraft.world.entity.LivingEntity entity, ++ net.minecraft.world.phys.AABB box) { ++ return this.getNearbyEntities(Player.class, targetPredicate, entity, box); ++ } ++ ++ @Override ++ public Player getNearestPlayer(double x, double y, double z, double maxDistance, @Nullable Predicate<Entity> targetPredicate) { ++ if (maxDistance > 0.0D) { ++ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers(); ++ ++ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock( ++ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x), ++ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z), ++ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL ++ ); ++ ++ if (nearby == null) { ++ return null; ++ } ++ ++ ServerPlayer nearest = null; ++ double nearestDist = maxDistance * maxDistance; ++ Object[] rawData = nearby.getRawData(); ++ for (int i = 0, len = nearby.size(); i < len; ++i) { ++ ServerPlayer player = (ServerPlayer)rawData[i]; ++ double dist = player.distanceToSqr(x, y, z); ++ if (dist >= nearestDist) { ++ continue; ++ } ++ ++ if (targetPredicate == null || targetPredicate.test(player)) { ++ nearest = player; ++ nearestDist = dist; ++ } ++ } ++ ++ return nearest; ++ } else { ++ ServerPlayer nearest = null; ++ double nearestDist = Double.MAX_VALUE; ++ ++ for (ServerPlayer player : this.players()) { ++ double dist = player.distanceToSqr(x, y, z); ++ if (dist >= nearestDist) { ++ continue; ++ } ++ ++ if (targetPredicate == null || targetPredicate.test(player)) { ++ nearest = player; ++ nearestDist = dist; ++ } ++ } ++ ++ return nearest; ++ } ++ } ++ ++ @Override ++ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity) { ++ return this.getNearestPlayer(targetPredicate, entity, entity.getX(), entity.getY(), entity.getZ()); ++ } ++ ++ @Override ++ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity, ++ double x, double y, double z) { ++ double range = targetPredicate.range; ++ if (range > 0.0D) { ++ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers(); ++ ++ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock( ++ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x), ++ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z), ++ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL ++ ); ++ ++ if (nearby == null) { ++ return null; ++ } ++ ++ ServerPlayer nearest = null; ++ double nearestDist = Double.MAX_VALUE; ++ Object[] rawData = nearby.getRawData(); ++ for (int i = 0, len = nearby.size(); i < len; ++i) { ++ ServerPlayer player = (ServerPlayer)rawData[i]; ++ double dist = player.distanceToSqr(x, y, z); ++ if (dist >= nearestDist) { ++ continue; ++ } ++ ++ if (targetPredicate.test(entity, player)) { ++ nearest = player; ++ nearestDist = dist; ++ } ++ } ++ ++ return nearest; ++ } else { ++ return this.getNearestEntity(this.players(), targetPredicate, entity, x, y, z); ++ } ++ } ++ ++ @Nullable ++ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, double x, double y, double z) { ++ return this.getNearestPlayer(targetPredicate, null, x, y, z); ++ } ++ // Paper end - optimise nearby player retrieval + + // Add env and gen to constructor, IWorldDataServer -> WorldDataServer + public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, PrimaryLevelData iworlddataserver, ResourceKey<Level> resourcekey, LevelStem worlddimension, ChunkProgressListener worldloadlistener, boolean flag, long i, List<CustomSpawner> list, boolean flag1, @Nullable RandomSequences randomsequences, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) { +diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java +index ed1b95ec694b0fe8b647964b18b8c33707fc0b47..65cd42ce9f553e0aa5bf248bdbf902f9d1f55460 100644 +--- a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java ++++ b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java +@@ -21,18 +21,50 @@ public class PlayerSensor extends Sensor<LivingEntity> { + + @Override + protected void doTick(ServerLevel world, LivingEntity entity) { +- List<Player> list = world.players().stream().filter(EntitySelector.NO_SPECTATORS).filter((player) -> { +- return entity.closerThan(player, 16.0D); +- }).sorted(Comparator.comparingDouble(entity::distanceToSqr)).collect(Collectors.toList()); ++ // Paper start - Perf: optimise nearby player retrieval & remove streams from hot code ++ io.papermc.paper.util.player.NearbyPlayers nearbyPlayers = world.chunkSource.chunkMap.getNearbyPlayers(); ++ net.minecraft.world.phys.Vec3 entityPos = entity.position(); ++ com.destroystokyo.paper.util.maplist.ReferenceList<net.minecraft.server.level.ServerPlayer> nearby = nearbyPlayers.getPlayersByChunk( ++ entity.chunkPosition().x, ++ entity.chunkPosition().z, ++ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL_REALLY_SMALL ++ ); ++ ++ List<Player> players = new java.util.ArrayList<>(nearby == null ? 0 : nearby.size()); ++ if (nearby != null) { ++ Object[] rawData = nearby.getRawData(); ++ for (int index = 0, len = nearby.size(); index < len; ++index) { ++ net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer) rawData[index]; ++ if (player.isSpectator()) { ++ continue; ++ } ++ if (player.distanceToSqr(entityPos.x, entityPos.y, entityPos.z) >= (16.0 * 16.0)) { ++ continue; ++ } ++ players.add(player); ++ } ++ } ++ players.sort(Comparator.comparingDouble(entity::distanceToSqr)); + Brain<?> brain = entity.getBrain(); +- brain.setMemory(MemoryModuleType.NEAREST_PLAYERS, list); +- List<Player> list2 = list.stream().filter((player) -> { +- return isEntityTargetable(entity, player); +- }).collect(Collectors.toList()); +- brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, list2.isEmpty() ? null : list2.get(0)); +- Optional<Player> optional = list2.stream().filter((player) -> { +- return isEntityAttackable(entity, player); +- }).findFirst(); +- brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, optional); ++ ++ brain.setMemory(MemoryModuleType.NEAREST_PLAYERS, players); ++ ++ Player firstTargetable = null; ++ Player firstAttackable = null; ++ for (Player player : players) { ++ if (firstTargetable == null && Sensor.isEntityTargetable(entity, player)) { ++ firstTargetable = player; ++ } ++ if (firstAttackable == null && Sensor.isEntityAttackable(entity, player)) { ++ firstAttackable = player; ++ } ++ ++ if (firstAttackable != null && firstTargetable != null) { ++ break; ++ } ++ } ++ brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, firstTargetable); ++ brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, Optional.ofNullable(firstAttackable)); ++ // Paper end - Perf: optimise nearby player retrieval & remove streams from hot code + } + } +diff --git a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java +index fae0dbfb6ac09a0c152c0f74a72583f44316def7..c8a80c1b2fedff22e8a877d466062375ffb2f0d7 100644 +--- a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java ++++ b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java +@@ -10,7 +10,7 @@ public class TargetingConditions { + public static final TargetingConditions DEFAULT = forCombat(); + private static final double MIN_VISIBILITY_DISTANCE_FOR_INVISIBLE_TARGET = 2.0D; + private final boolean isCombat; +- private double range = -1.0D; ++ public double range = -1.0D; // Paper - public + private boolean checkLineOfSight = true; + private boolean testInvisible = true; + @Nullable +diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java +index f42dd9602805e9d538506ee4e3eac7e2811a3da6..ed84c87a3f76bc0254c1abb189e6b8b808823465 100644 +--- a/src/main/java/net/minecraft/world/level/EntityGetter.java ++++ b/src/main/java/net/minecraft/world/level/EntityGetter.java +@@ -230,9 +230,13 @@ public interface EntityGetter { + T livingEntity = null; + + for(T livingEntity2 : entityList) { ++ // Paper start - optimise nearby player retrieval; move up ++ // don't check entities outside closest range ++ double e = livingEntity2.distanceToSqr(x, y, z); ++ if (d == -1.0D || e < d) { ++ // Paper end - move up + if (targetPredicate.test(entity, livingEntity2)) { +- double e = livingEntity2.distanceToSqr(x, y, z); +- if (d == -1.0D || e < d) { ++ // Paper - optimise nearby player retrieval; move up + d = e; + livingEntity = livingEntity2; + } |