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Remove duplicate code in chunk tick iteration (#10056)
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@Machine-Maker
Machine-Maker authored Dec 21, 2023
1 parent 45e01a2 commit d11a588
Showing 1 changed file with 13 additions and 41 deletions.
54 changes: 13 additions & 41 deletions patches/server/1014-Optimise-chunk-tick-iteration.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -187,61 +187,31 @@ index 68550d4497a5f10bf653482f79be77373df53f27..55f96545d6db95e3e657502a7910d96f

public String getDebugStatus() {
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca5170d717 100644
index 5152979bf81345fc365e7b16028c7d970d2f5856..44ada45d9bf2d9b48e5de1c3cb1a855902f3884b 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -516,18 +516,43 @@ public class ServerChunkCache extends ChunkSource {
@@ -516,18 +516,10 @@ public class ServerChunkCache extends ChunkSource {

gameprofilerfiller.push("pollingChunks");
gameprofilerfiller.push("filteringLoadedChunks");
- List<ServerChunkCache.ChunkAndHolder> list = Lists.newArrayListWithCapacity(this.chunkMap.size());
- Iterator iterator = this.chunkMap.getChunks().iterator();
+ // Paper - optimise chunk tick iteration
if (this.level.getServer().tickRateManager().runsNormally()) this.level.timings.chunkTicks.startTiming(); // Paper

- while (iterator.hasNext()) {
- ChunkHolder playerchunk = (ChunkHolder) iterator.next();
- LevelChunk chunk = playerchunk.getTickingChunk();
+ // Paper start - optimise chunk tick iteration
+ ChunkMap playerChunkMap = this.chunkMap;
+ for (ServerPlayer player : this.level.players) {
+ if (!player.affectsSpawning || player.isSpectator()) {
+ playerChunkMap.playerMobSpawnMap.remove(player);
+ player.playerNaturallySpawnedEvent = null;
+ player.lastEntitySpawnRadiusSquared = -1.0;
+ continue;
+ }
+
+ int viewDistance = io.papermc.paper.chunk.system.ChunkSystem.getTickViewDistance(player);

-
- if (chunk != null) {
- list.add(new ServerChunkCache.ChunkAndHolder(chunk, playerchunk));
+ // copied and modified from isOutisdeRange
+ int chunkRange = (int)level.spigotConfig.mobSpawnRange;
+ chunkRange = (chunkRange > viewDistance) ? viewDistance : chunkRange;
+ chunkRange = (chunkRange > DistanceManager.MOB_SPAWN_RANGE) ? DistanceManager.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.playerMobSpawnMap.remove(player);
+ player.playerNaturallySpawnedEvent = null;
+ player.lastEntitySpawnRadiusSquared = -1.0;
+ continue;
}
+
+ int range = Math.min(event.getSpawnRadius(), DistanceManager.MOB_SPAWN_RANGE); // limit to max spawn range
+ int chunkX = io.papermc.paper.util.CoordinateUtils.getChunkCoordinate(player.getX());
+ int chunkZ = io.papermc.paper.util.CoordinateUtils.getChunkCoordinate(player.getZ());
+
+ playerChunkMap.playerMobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range);
+ player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in anyPlayerCloseEnoughForSpawning
+ player.playerNaturallySpawnedEvent = event;
}
+ // Paper end - optimise chunk tick iteration
- }
- }
+ // Paper - optimise chunk tick iteration

if (this.level.getServer().tickRateManager().runsNormally()) {
gameprofilerfiller.popPush("naturalSpawnCount");
@@ -562,38 +587,107 @@ public class ServerChunkCache extends ChunkSource {
@@ -562,38 +554,109 @@ public class ServerChunkCache extends ChunkSource {
gameprofilerfiller.popPush("spawnAndTick");
boolean flag = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && !this.level.players().isEmpty(); // CraftBukkit

Expand All @@ -254,6 +224,7 @@ index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca
- entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange);
- entityPlayer.playerNaturallySpawnedEvent.callEvent();
+ // Paper start - optimise chunk tick iteration
+ ChunkMap playerChunkMap = this.chunkMap;
+ for (ServerPlayer player : this.level.players) {
+ if (!player.affectsSpawning || player.isSpectator()) {
+ playerChunkMap.playerMobSpawnMap.remove(player);
Expand Down Expand Up @@ -291,6 +262,7 @@ index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca
int l = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING);
boolean flag1 = this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && this.level.getLevelData().getGameTime() % this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit
- Iterator iterator1 = list.iterator();
+ // Paper - optimise chunk tick iteration

int chunksTicked = 0; // Paper
- while (iterator1.hasNext()) {
Expand All @@ -313,7 +285,8 @@ index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca
+ try {
+ // Paper end - optimise chunk tick iteration
+ while (chunkIterator.hasNext()) {
+ LevelChunk chunk1 = chunkIterator.next(); // Paper - optimise chunk tick iteration
+ LevelChunk chunk1 = chunkIterator.next();
+ // Paper end - optimise chunk tick iteration
ChunkPos chunkcoordintpair = chunk1.getPos();

- if (this.level.isNaturalSpawningAllowed(chunkcoordintpair) && this.chunkMap.anyPlayerCloseEnoughForSpawning(chunkcoordintpair)) {
Expand All @@ -323,7 +296,6 @@ index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca
+ if (playersNearby == null) {
+ continue;
+ }
+
+ Object[] rawData = playersNearby.getRawData();
+ boolean spawn = false;
+ boolean tick = false;
Expand Down Expand Up @@ -365,7 +337,7 @@ index 5152979bf81345fc365e7b16028c7d970d2f5856..6e212f672579a3e08dc362c287be59ca
this.level.timings.chunkTicks.stopTiming(); // Paper

gameprofilerfiller.popPush("customSpawners");
@@ -605,11 +699,23 @@ public class ServerChunkCache extends ChunkSource {
@@ -605,11 +668,23 @@ public class ServerChunkCache extends ChunkSource {
}

gameprofilerfiller.popPush("broadcast");
Expand Down

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