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18c3716c49
This enables us a fast reference to the entities current chunk instead of having to look it up by hashmap lookups. We also store counts by type to further enable other performance optimizations in later patches.
70 lines
2.5 KiB
Diff
70 lines
2.5 KiB
Diff
From a447b4a83b584f8af1b4b6d5fb660a9db06d2179 Mon Sep 17 00:00:00 2001
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From: Alfie Cleveland <alfeh@me.com>
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Date: Fri, 19 Aug 2016 01:52:56 +0100
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Subject: [PATCH] Optimise BlockStateEnum hashCode and equals
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diff --git a/src/main/java/net/minecraft/server/BlockStateEnum.java b/src/main/java/net/minecraft/server/BlockStateEnum.java
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index 21ac1e066..a241d7d8c 100644
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--- a/src/main/java/net/minecraft/server/BlockStateEnum.java
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+++ b/src/main/java/net/minecraft/server/BlockStateEnum.java
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@@ -16,6 +16,11 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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private final ImmutableSet<T> a;
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private final Map<String, T> b = Maps.newHashMap();
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+ // Paper start - BlockStateEnum is a singleton, so we can use our own hashCode
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+ private static int hashId = 0;
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+ private int hashCode;
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+ // Paper end
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+
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protected BlockStateEnum(String s, Class<T> oclass, Collection<T> collection) {
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super(s, oclass);
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this.a = ImmutableSet.copyOf(collection);
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@@ -32,6 +37,7 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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this.b.put(s1, (T) oenum);
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}
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+ this.hashCode = hashId++; // Paper
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}
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public Collection<T> c() {
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@@ -46,32 +52,15 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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return ((INamable) t0).getName();
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}
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+ @Override // Paper - override equals as BlockStateEnum is a singleton
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public boolean equals(Object object) {
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- if (this == object) {
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- return true;
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- } else if (object instanceof BlockStateEnum && super.equals(object)) {
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- BlockStateEnum blockstateenum = (BlockStateEnum) object;
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-
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- return this.a.equals(blockstateenum.a) && this.b.equals(blockstateenum.b);
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- } else {
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- return false;
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- }
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+ return this == object;
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}
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- // Spigot start
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- private int hashCode;
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+ @Override // Paper - override equals as BlockStateEnum is a singleton
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public int hashCode() {
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- int hash = hashCode;
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- if (hash == 0) {
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- int i = super.hashCode();
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-
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- i = 31 * i + this.a.hashCode();
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- i = 31 * i + this.b.hashCode();
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- hashCode = hash = i;
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- }
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- return hash;
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+ return hashCode;
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}
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- // Spigot end
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public static <T extends Enum<T> & INamable> BlockStateEnum<T> of(String s, Class<T> oclass) {
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return a(s, oclass, Predicates.alwaysTrue());
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--
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2.18.0
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