72 lines
2.6 KiB
Diff
72 lines
2.6 KiB
Diff
From 890535d3714a533dbcb0fb189aefd8c661e64f8e Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 12 Sep 2018 21:47:01 -0400
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Subject: [PATCH] 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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diff --git a/src/main/java/net/minecraft/server/BiomeBase.java b/src/main/java/net/minecraft/server/BiomeBase.java
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index c399bdecc..3496d4236 100644
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--- a/src/main/java/net/minecraft/server/BiomeBase.java
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+++ b/src/main/java/net/minecraft/server/BiomeBase.java
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@@ -120,7 +120,7 @@ public abstract class BiomeBase {
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protected final Map<WorldGenStage.Decoration, List<WorldGenFeatureComposite<?, ?>>> aW = Maps.newHashMap();
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protected final List<WorldGenFeatureCompositeFlower<?>> aX = Lists.newArrayList();
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protected final Map<StructureGenerator<?>, WorldGenFeatureConfiguration> aY = Maps.newHashMap();
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- private final Map<EnumCreatureType, List<BiomeBase.BiomeMeta>> aZ = Maps.newHashMap();
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+ private final java.util.EnumMap<EnumCreatureType, List<BiomeBase.BiomeMeta>> aZ = Maps.newEnumMap(EnumCreatureType.class); // Paper
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@Nullable
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public static BiomeBase a(BiomeBase biomebase) {
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@@ -169,7 +169,7 @@ public abstract class BiomeBase {
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for (j = 0; j < i; ++j) {
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EnumCreatureType enumcreaturetype = aenumcreaturetype[j];
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- this.aZ.put(enumcreaturetype, Lists.newArrayList());
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+ this.aZ.put(enumcreaturetype, new MobList()); // Paper
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}
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} else {
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@@ -473,6 +473,38 @@ public abstract class BiomeBase {
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}
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+ // 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
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+ public static class MobList extends java.util.ArrayList<BiomeMeta> {
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+ java.util.Set<BiomeMeta> biomes = new java.util.HashSet<>();
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+
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+ @Override
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+ public boolean contains(Object o) {
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+ return biomes.contains(o);
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+ }
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+
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+ @Override
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+ public boolean add(BiomeMeta biomeMeta) {
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+ biomes.add(biomeMeta);
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+ return super.add(biomeMeta);
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+ }
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+
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+ @Override
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+ public BiomeMeta remove(int index) {
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+ BiomeMeta removed = super.remove(index);
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+ if (removed != null) {
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+ biomes.remove(removed);
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+ }
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+ return removed;
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+ }
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+
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+ @Override
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+ public void clear() {
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+ biomes.clear();
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+ super.clear();
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+ }
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+ }
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+ // Paper end
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+
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public static class a {
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@Nullable
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--
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2.20.1
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