From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Tue, 5 May 2020 20:40:53 -0700 Subject: [PATCH] Optimize isOutsideRange to use distance maps Use a distance map to find the players in range quickly diff --git a/src/main/java/net/minecraft/server/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java index 275c2b23b4d1ff09ee2b1823d0780700f773659e..ef61f8e784b7ebd26293d627e8b8e1aef1be6e21 100644 --- a/src/main/java/net/minecraft/server/ChunkMapDistance.java +++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java @@ -31,7 +31,7 @@ public abstract class ChunkMapDistance { private final Long2ObjectMap> c = new Long2ObjectOpenHashMap(); public final Long2ObjectOpenHashMap>> tickets = new Long2ObjectOpenHashMap(); private final ChunkMapDistance.a ticketLevelTracker = new ChunkMapDistance.a(); - private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); + public static final int MOB_SPAWN_RANGE = 8; // private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); // Paper - no longer used private final ChunkMapDistance.c g = new ChunkMapDistance.c(33); // Paper start use a queue, but still keep unique requirement public final java.util.Queue pendingChunkUpdates = new java.util.ArrayDeque() { @@ -50,6 +50,8 @@ public abstract class ChunkMapDistance { private final Executor m; private long currentTick; + PlayerChunkMap chunkMap; // Paper + protected ChunkMapDistance(Executor executor, Executor executor1) { executor1.getClass(); Mailbox mailbox = Mailbox.a("player ticket throttler", executor1::execute); @@ -94,7 +96,7 @@ public abstract class ChunkMapDistance { protected abstract PlayerChunk a(long i, int j, @Nullable PlayerChunk playerchunk, int k); public boolean a(PlayerChunkMap playerchunkmap) { - this.f.a(); + //this.f.a(); // Paper - no longer used this.g.a(); int i = Integer.MAX_VALUE - this.ticketLevelTracker.a(Integer.MAX_VALUE); boolean flag = i != 0; @@ -230,7 +232,7 @@ public abstract class ChunkMapDistance { ((ObjectSet) this.c.computeIfAbsent(i, (j) -> { return new ObjectOpenHashSet(); })).add(entityplayer); - this.f.update(i, 0, true); + //this.f.update(i, 0, true); // Paper - no longer used this.g.update(i, 0, true); } @@ -241,7 +243,7 @@ public abstract class ChunkMapDistance { if (objectset != null) objectset.remove(entityplayer); // Paper - some state corruption happens here, don't crash, clean up gracefully. if (objectset == null || objectset.isEmpty()) { // Paper this.c.remove(i); - this.f.update(i, Integer.MAX_VALUE, false); + //this.f.update(i, Integer.MAX_VALUE, false); // Paper - no longer used this.g.update(i, Integer.MAX_VALUE, false); } @@ -265,13 +267,17 @@ public abstract class ChunkMapDistance { } public int b() { - this.f.a(); - return this.f.a.size(); + // Paper start - use distance map to implement + // note: this is the spawn chunk count + return this.chunkMap.playerChunkTickRangeMap.size(); + // Paper end - use distance map to implement } public boolean d(long i) { - this.f.a(); - return this.f.a.containsKey(i); + // Paper start - use distance map to implement + // note: this is the is spawn chunk method + return this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(i) != null; + // Paper end - use distance map to implement } public String c() { diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java index 4e50ef38700918a0efb2c67f5acf98eb66fd8335..b4d8657d37b2a6c02e886ec6de243634d1c08d51 100644 --- a/src/main/java/net/minecraft/server/ChunkProviderServer.java +++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java @@ -729,6 +729,37 @@ public class ChunkProviderServer extends IChunkProvider { boolean flag1 = this.world.getGameRules().getBoolean(GameRules.DO_MOB_SPAWNING) && !world.getPlayers().isEmpty(); // CraftBukkit if (!flag) { + // Paper start - optimize isOutisdeRange + PlayerChunkMap playerChunkMap = this.playerChunkMap; + for (EntityPlayer player : this.world.players) { + if (!player.affectsSpawning || player.isSpectator()) { + playerChunkMap.playerMobSpawnMap.remove(player); + continue; + } + + int viewDistance = this.playerChunkMap.getEffectiveViewDistance(); + + // copied and modified from isOutisdeRange + int chunkRange = world.spigotConfig.mobSpawnRange; + chunkRange = (chunkRange > viewDistance) ? (byte)viewDistance : chunkRange; + chunkRange = (chunkRange > ChunkMapDistance.MOB_SPAWN_RANGE) ? ChunkMapDistance.MOB_SPAWN_RANGE : chunkRange; + + com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(player.getBukkitEntity(), (byte)chunkRange); + event.callEvent(); + if (event.isCancelled() || event.getSpawnRadius() < 0 || playerChunkMap.playerChunkTickRangeMap.getLastViewDistance(player) == -1) { + playerChunkMap.playerMobSpawnMap.remove(player); + continue; + } + + int range = Math.min(event.getSpawnRadius(), 32); // limit to max view distance + int chunkX = net.minecraft.server.MCUtil.getChunkCoordinate(player.locX()); + int chunkZ = net.minecraft.server.MCUtil.getChunkCoordinate(player.locZ()); + + playerChunkMap.playerMobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range); + player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in isOutsideRange + player.playerNaturallySpawnedEvent = event; + } + // Paper end - optimize isOutisdeRange this.world.getMethodProfiler().enter("pollingChunks"); int k = this.world.getGameRules().getInt(GameRules.RANDOM_TICK_SPEED); boolean flag2 = world.ticksPerAnimalSpawns != 0L && worlddata.getTime() % world.ticksPerAnimalSpawns == 0L; // CraftBukkit @@ -758,15 +789,7 @@ public class ChunkProviderServer extends IChunkProvider { this.world.getMethodProfiler().exit(); //List list = Lists.newArrayList(this.playerChunkMap.f()); // Paper //Collections.shuffle(list); // Paper - //Paper start - call player naturally spawn event - int chunkRange = world.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > world.spigotConfig.viewDistance) ? (byte) world.spigotConfig.viewDistance : chunkRange; - chunkRange = Math.min(chunkRange, 8); - for (EntityPlayer entityPlayer : this.world.getPlayers()) { - entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange); - entityPlayer.playerNaturallySpawnedEvent.callEvent(); - }; - // Paper end + // Paper - moved up final int[] chunksTicked = {0}; this.playerChunkMap.forEachVisibleChunk((playerchunk) -> { // Paper - safe iterator incase chunk loads, also no wrapping Optional optional = ((Either) playerchunk.a().getNow(PlayerChunk.UNLOADED_CHUNK)).left(); @@ -782,9 +805,9 @@ public class ChunkProviderServer extends IChunkProvider { Chunk chunk = (Chunk) optional1.get(); ChunkCoordIntPair chunkcoordintpair = playerchunk.i(); - if (!this.playerChunkMap.isOutsideOfRange(chunkcoordintpair)) { + if (!this.playerChunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, false)) { // Paper - optimise isOutsideOfRange chunk.setInhabitedTime(chunk.getInhabitedTime() + j); - if (flag1 && (this.allowMonsters || this.allowAnimals) && this.world.getWorldBorder().isInBounds(chunk.getPos()) && !this.playerChunkMap.isOutsideOfRange(chunkcoordintpair, true)) { // Spigot + if (flag1 && (this.allowMonsters || this.allowAnimals) && this.world.getWorldBorder().isInBounds(chunk.getPos()) && !this.playerChunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, true)) { // Spigot // Paper - optimise isOutsideOfRange SpawnerCreature.a(this.world, chunk, spawnercreature_d, this.allowAnimals, this.allowMonsters, flag2); } diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java index 052f209d18818bcd5fa07c0026bcb922de2e78ba..a70721a051f524862003b9fb1dda79cf9ad64db0 100644 --- a/src/main/java/net/minecraft/server/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/EntityPlayer.java @@ -117,6 +117,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting { public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet cachedSingleHashSet; // Paper + double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks + public EntityPlayer(MinecraftServer minecraftserver, WorldServer worldserver, GameProfile gameprofile, PlayerInteractManager playerinteractmanager) { super(worldserver, worldserver.getSpawn(), worldserver.v(), gameprofile); this.spawnDimension = World.OVERWORLD; diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java index 054a3156f7b7b7077422b4951adf7bf45df42bfc..69c7bbf6a83b07a3af62b8fabaa851c7f7dc9a98 100644 --- a/src/main/java/net/minecraft/server/PlayerChunk.java +++ b/src/main/java/net/minecraft/server/PlayerChunk.java @@ -45,6 +45,18 @@ public class PlayerChunk { long lastAutoSaveTime; // Paper - incremental autosave long inactiveTimeStart; // Paper - incremental autosave + // Paper start - optimise isOutsideOfRange + // cached here to avoid a map lookup + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInMobSpawnRange; + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInChunkTickRange; + + void updateRanges() { + long key = net.minecraft.server.MCUtil.getCoordinateKey(this.location); + this.playersInMobSpawnRange = this.chunkMap.playerMobSpawnMap.getObjectsInRange(key); + this.playersInChunkTickRange = this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(key); + } + // Paper end - optimise isOutsideOfRange + public PlayerChunk(ChunkCoordIntPair chunkcoordintpair, int i, LightEngine lightengine, PlayerChunk.c playerchunk_c, PlayerChunk.d playerchunk_d) { this.statusFutures = new AtomicReferenceArray(PlayerChunk.CHUNK_STATUSES.size()); this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE; @@ -61,6 +73,7 @@ public class PlayerChunk { this.n = this.oldTicketLevel; this.a(i); this.chunkMap = (PlayerChunkMap)playerchunk_d; // Paper + this.updateRanges(); // Paper - optimise isOutsideOfRange } // Paper start diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java index 21a9a0364ec6cfd28fcfc0a62d3465993dac1a1c..b4067657eefe6a418b76b599b4c8ffb8359c3f89 100644 --- a/src/main/java/net/minecraft/server/PlayerChunkMap.java +++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java @@ -160,6 +160,17 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return MinecraftServer.getServer().applyTrackingRangeScale(vanilla); } // Paper end - use distance map to optimise tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + // A note about the naming used here: + // Previously, mojang used a "spawn range" of 8 for controlling both ticking and + // mob spawn range. However, spigot makes the spawn range configurable by + // checking if the chunk is in the tick range (8) and the spawn range + // obviously this means a spawn range > 8 cannot be implemented + + // these maps are named after spigot's uses + public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobSpawnMap; // this map is absent from updateMaps since it's controlled at the start of the chunkproviderserver tick + public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerChunkTickRangeMap; + // Paper end - optimise PlayerChunkMap#isOutsideRange void addPlayerToDistanceMaps(EntityPlayer player) { int chunkX = MCUtil.getChunkCoordinate(player.locX()); @@ -173,6 +184,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { trackMap.add(player, chunkX, chunkZ, Math.min(trackRange, this.getEffectiveViewDistance())); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap.add(player, chunkX, chunkZ, ChunkMapDistance.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange } void removePlayerFromDistanceMaps(EntityPlayer player) { @@ -181,6 +195,10 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { this.playerEntityTrackerTrackMaps[i].remove(player); } // Paper end - use distance map to optimise tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerMobSpawnMap.remove(player); + this.playerChunkTickRangeMap.remove(player); + // Paper end - optimise PlayerChunkMap#isOutsideRange } void updateMaps(EntityPlayer player) { @@ -195,6 +213,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { trackMap.update(player, chunkX, chunkZ, Math.min(trackRange, this.getEffectiveViewDistance())); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap.update(player, chunkX, chunkZ, ChunkMapDistance.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange } // Paper end @@ -226,7 +247,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { this.mailboxWorldGen = this.p.a(threadedmailbox, false); this.mailboxMain = this.p.a(mailbox, false); this.lightEngine = new LightEngineThreaded(ilightaccess, this, this.world.getDimensionManager().hasSkyLight(), threadedmailbox1, this.p.a(threadedmailbox1, false)); - this.chunkDistanceManager = new PlayerChunkMap.a(executor, iasynctaskhandler); + this.chunkDistanceManager = new PlayerChunkMap.a(executor, iasynctaskhandler); this.chunkDistanceManager.chunkMap = this; // Paper this.l = supplier; this.m = new VillagePlace(new File(this.w, "poi"), datafixer, flag, this.world); // Paper this.setViewDistance(i); @@ -270,6 +291,38 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { this.playerEntityTrackerTrackMaps[ordinal] = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }); + this.playerMobSpawnMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }); + // Paper end - optimise PlayerChunkMap#isOutsideRange } public void updatePlayerMobTypeMap(Entity entity) { @@ -289,6 +342,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return entityPlayer.mobCounts[enumCreatureType.ordinal()]; } + private static double getDistanceSquaredFromChunk(ChunkCoordIntPair chunkPos, Entity entity) { return a(chunkPos, entity); } // Paper - OBFHELPER private static double a(ChunkCoordIntPair chunkcoordintpair, Entity entity) { double d0 = (double) (chunkcoordintpair.x * 16 + 8); double d1 = (double) (chunkcoordintpair.z * 16 + 8); @@ -467,6 +521,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { } else { if (playerchunk != null) { playerchunk.a(j); + playerchunk.updateRanges(); // Paper - optimise isOutsideOfRange } if (playerchunk != null) { @@ -1437,30 +1492,53 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return isOutsideOfRange(chunkcoordintpair, false); } - boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) { - int chunkRange = world.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > world.spigotConfig.viewDistance) ? (byte) world.spigotConfig.viewDistance : chunkRange; - chunkRange = (chunkRange > 8) ? 8 : chunkRange; + // Paper start - optimise isOutsideOfRange + final boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) { + return this.isOutsideOfRange(this.getUpdatingChunk(chunkcoordintpair.pair()), chunkcoordintpair, reducedRange); + } - final int finalChunkRange = chunkRange; // Paper for lambda below - //double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D; // Paper - use from event - // Spigot end - long i = chunkcoordintpair.pair(); + final boolean isOutsideOfRange(PlayerChunk playerchunk, ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) { + // this function is so hot that removing the map lookup call can have an order of magnitude impact on its performance + // tested and confirmed via System.nanoTime() + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInRange = reducedRange ? playerchunk.playersInMobSpawnRange : playerchunk.playersInChunkTickRange; - return !this.chunkDistanceManager.d(i) ? true : this.playerMap.a(i).noneMatch((entityplayer) -> { - // Paper start - - com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event; - double blockRange = 16384.0D; - if (reducedRange) { - event = entityplayer.playerNaturallySpawnedEvent; - if (event == null || event.isCancelled()) return false; - blockRange = (double) ((event.getSpawnRadius() << 4) * (event.getSpawnRadius() << 4)); - } + if (playersInRange == null) { + return true; + } - return (!entityplayer.isSpectator() && a(chunkcoordintpair, (Entity) entityplayer) < blockRange); // Spigot - // Paper end - }); + Object[] backingSet = playersInRange.getBackingSet(); + + if (reducedRange) { + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object raw = backingSet[i]; + if (!(raw instanceof EntityPlayer)) { + continue; + } + EntityPlayer player = (EntityPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (player.lastEntitySpawnRadiusSquared > getDistanceSquaredFromChunk(chunkcoordintpair, player)) { + return false; // in range + } + } + } else { + final double range = (ChunkMapDistance.MOB_SPAWN_RANGE * 16) * (ChunkMapDistance.MOB_SPAWN_RANGE * 16); + // before spigot, mob spawn range was actually mob spawn range + tick range, but it was split + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object raw = backingSet[i]; + if (!(raw instanceof EntityPlayer)) { + continue; + } + EntityPlayer player = (EntityPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (range > getDistanceSquaredFromChunk(chunkcoordintpair, player)) { + return false; // in range + } + } + } + // no players in range + return true; } + // Paper end - optimise isOutsideOfRange private boolean b(EntityPlayer entityplayer) { return entityplayer.isSpectator() && !this.world.getGameRules().getBoolean(GameRules.SPECTATORS_GENERATE_CHUNKS);