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Optimize Biome Mob Lookups for Mob Spawning

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Uses an EnumMap as well as a Set paired List for O(1) contains calls
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Aikar 2018-09-12 21:50:34 -04:00
parent c6409382b8
commit 94171733dd
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1 changed files with 80 additions and 0 deletions
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Spigot-Server-Patches/0370-Optimize-Biome-Mob-Lookups-for-Mob-Spawning.patch Normal file
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@ -0,0 +1,80 @@
From 12b790f4486e8c965077d12175aafeb535bd9388 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 12 Sep 2018 21:47:01 -0400
Subject: [PATCH] Optimize Biome Mob Lookups for Mob Spawning
Uses an EnumMap as well as a Set paired List for O(1) contains calls.
diff --git a/src/main/java/net/minecraft/server/BiomeBase.java b/src/main/java/net/minecraft/server/BiomeBase.java
index 66c038784c..b6990a6d7a 100644
--- a/src/main/java/net/minecraft/server/BiomeBase.java
+++ b/src/main/java/net/minecraft/server/BiomeBase.java
@@ -118,7 +118,7 @@ public abstract class BiomeBase {
protected final Map<WorldGenStage.Decoration, List<WorldGenFeatureComposite<?, ?>>> aW = Maps.newHashMap();
protected final List<WorldGenFeatureCompositeFlower<?>> aX = Lists.newArrayList();
protected final Map<StructureGenerator<?>, WorldGenFeatureConfiguration> aY = Maps.newHashMap();
- private final Map<EnumCreatureType, List<BiomeBase.BiomeMeta>> aZ = Maps.newHashMap();
+ private final java.util.EnumMap<EnumCreatureType, List<BiomeBase.BiomeMeta>> aZ = Maps.newEnumMap(EnumCreatureType.class); // Paper
@Nullable
public static BiomeBase a(BiomeBase biomebase) {
@@ -155,7 +155,7 @@ public abstract class BiomeBase {
}
for(EnumCreatureType enumcreaturetype : EnumCreatureType.values()) {
- this.aZ.put(enumcreaturetype, Lists.newArrayList());
+ this.aZ.put(enumcreaturetype, new MobList()); // Paper
}
} else {
@@ -297,7 +297,7 @@ public abstract class BiomeBase {
public void a(WorldGenStage.Decoration worldgenstage$decoration, ChunkGenerator<? extends GeneratorSettings> chunkgenerator, GeneratorAccess generatoraccess, long ix, SeededRandom seededrandom, BlockPosition blockposition) {
int jx = 0;
- for(WorldGenFeatureComposite worldgenfeaturecomposite : (List)this.aW.get(worldgenstage$decoration)) {
+ for(WorldGenFeatureComposite worldgenfeaturecomposite : this.aW.get(worldgenstage$decoration)) { // Paper - decompile fix
seededrandom.b(ix, jx, worldgenstage$decoration.ordinal());
worldgenfeaturecomposite.a(generatoraccess, chunkgenerator, seededrandom, blockposition, WorldGenFeatureConfiguration.e);
++jx;
@@ -459,6 +459,38 @@ public abstract class BiomeBase {
}
+ // Paper start - keep track of data in a pair set to give O(1) contains calls - we have to hook removals incase plugins mess with it
+ public static class MobList extends java.util.ArrayList<BiomeMeta> {
+ java.util.Set<BiomeMeta> biomes = new java.util.HashSet<>();
+
+ @Override
+ public boolean contains(Object o) {
+ return biomes.contains(o);
+ }
+
+ @Override
+ public boolean add(BiomeMeta biomeMeta) {
+ biomes.add(biomeMeta);
+ return super.add(biomeMeta);
+ }
+
+ @Override
+ public BiomeMeta remove(int index) {
+ BiomeMeta removed = super.remove(index);
+ if (removed != null) {
+ biomes.remove(removed);
+ }
+ return removed;
+ }
+
+ @Override
+ public void clear() {
+ biomes.clear();
+ super.clear();
+ }
+ }
+ // Paper end
+
public static class BiomeMeta extends WeightedRandom.WeightedRandomChoice {
public EntityTypes<? extends EntityInsentient> b;
public int c;
--
2.18.0