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Leaf/leaf-server/paper-patches/features/0018-CraftBukkit-UUID-to-world-map.patch
2025-07-12 16:03:27 +08:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Sat, 24 Dec 2022 13:09:34 +0100
Subject: [PATCH] CraftBukkit UUID to world map
License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
Gale - https://galemc.org
This patch is based on the following patch:
"Optimize CraftServer.getWorld(UUID)"
By: PureGero <puregero@gmail.com>
As part of: MultiPaper (https://github.com/MultiPaper/MultiPaper)
Licensed under: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index db4bbabf5f6c24a32fb96f0ce5e642adb468c805..3c671beafb9b0dafbf3ef9583244118462c4cab3 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -287,6 +287,7 @@ public final class CraftServer implements Server {
final DedicatedServer console;
private final DedicatedPlayerList playerList;
private final Map<String, World> worlds = new LinkedHashMap<>();
+ private final it.unimi.dsi.fastutil.objects.Object2ObjectMap<UUID, World> worldsByUUID = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(); // Gale - MultiPaper - CraftBukkit UUID to world map
private YamlConfiguration configuration;
private YamlConfiguration commandsConfiguration;
private final Yaml yaml = new Yaml(new SafeConstructor(new LoaderOptions()));
@@ -1484,6 +1485,7 @@ public final class CraftServer implements Server {
this.getLogger().log(Level.SEVERE, null, ex);
}
+ this.worldsByUUID.remove(world.getUID()); // Gale - MultiPaper - CraftBukkit UUID to world map
this.worlds.remove(world.getName().toLowerCase(Locale.ROOT));
this.console.removeLevel(handle);
return true;
@@ -1502,12 +1504,7 @@ public final class CraftServer implements Server {
@Override
public World getWorld(UUID uid) {
- for (World world : this.worlds.values()) {
- if (world.getUID().equals(uid)) {
- return world;
- }
- }
- return null;
+ return this.worldsByUUID.get(uid); // Gale - MultiPaper - CraftBukkit UUID to world map
}
@Override
@@ -1523,6 +1520,7 @@ public final class CraftServer implements Server {
System.out.println("World " + world.getName() + " is a duplicate of another world and has been prevented from loading. Please delete the uid.dat file from " + world.getName() + "'s world directory if you want to be able to load the duplicate world.");
return;
}
+ this.worldsByUUID.put(world.getUID(), world); // Gale - MultiPaper - CraftBukkit UUID to world map
this.worlds.put(world.getName().toLowerCase(Locale.ROOT), world);
}