Paper/Spigot-Server-Patches/0394-Optimise-IEntityAccess-getPlayerByUUID.patch
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2021-05-02 15:37:24 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 11 Jan 2020 21:50:56 -0800
Subject: [PATCH] Optimise IEntityAccess#getPlayerByUUID
Use the world entity map instead of iterating over all players
diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index 71967bc86c2c2ad6bcafc80a5f8ab31c33f022e6..07b2f7f13044ace4db48274da8309c37aaa2d2c4 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -289,6 +289,15 @@ public class WorldServer extends World implements GeneratorAccessSeed {
}
// Paper end
+ // Paper start - optimise getPlayerByUUID
+ @Nullable
+ @Override
+ public EntityHuman getPlayerByUUID(UUID uuid) {
+ Entity player = this.entitiesByUUID.get(uuid);
+ return (player instanceof EntityHuman) ? (EntityHuman)player : null;
+ }
+ // Paper end
+
// Add env and gen to constructor, WorldData -> WorldDataServer
public WorldServer(MinecraftServer minecraftserver, Executor executor, Convertable.ConversionSession convertable_conversionsession, IWorldDataServer iworlddataserver, ResourceKey<World> resourcekey, DimensionManager dimensionmanager, WorldLoadListener worldloadlistener, ChunkGenerator chunkgenerator, boolean flag, long i, List<MobSpawner> list, boolean flag1, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen) {
super(iworlddataserver, resourcekey, dimensionmanager, minecraftserver::getMethodProfiler, false, flag, i, gen, env, executor); // Paper pass executor
diff --git a/src/main/java/net/minecraft/world/level/IEntityAccess.java b/src/main/java/net/minecraft/world/level/IEntityAccess.java
index 8fdc4b22e8c99d653bd213fe64339c133b46b4e9..1ff9e771788a4ab52129070e355ca48df2949470 100644
--- a/src/main/java/net/minecraft/world/level/IEntityAccess.java
+++ b/src/main/java/net/minecraft/world/level/IEntityAccess.java
@@ -277,6 +277,12 @@ public interface IEntityAccess {
@Nullable
default EntityHuman b(UUID uuid) {
+ // Paper start - allow WorldServer to override
+ return this.getPlayerByUUID(uuid);
+ }
+ @Nullable
+ default EntityHuman getPlayerByUUID(UUID uuid) {
+ // Paper end
for (int i = 0; i < this.getPlayers().size(); ++i) {
EntityHuman entityhuman = (EntityHuman) this.getPlayers().get(i);