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Leaf/leaf-server/minecraft-patches/features/0065-Use-linked-map-for-entity-trackers.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Thu, 1 Dec 2022 14:40:03 +0100
Subject: [PATCH] Use linked map for entity trackers
License: MIT (https://opensource.org/licenses/MIT)
Gale - https://galemc.org
This patch is based on the following mixin:
"com/ishland/vmp/mixins/entitytracker/MixinThreadedAnvilChunkStorage.java"
By: ishland <ishlandmc@yeah.net>
As part of: VMP (https://github.com/RelativityMC/VMP-fabric)
Licensed under: MIT (https://opensource.org/licenses/MIT)
diff --git a/net/minecraft/server/level/ChunkMap.java b/net/minecraft/server/level/ChunkMap.java
index b28d19b2fcdff9250e95db05f6e428db54a771e6..a95feb65b392a971ac570dd3fd771b6ff89a2684 100644
--- a/net/minecraft/server/level/ChunkMap.java
+++ b/net/minecraft/server/level/ChunkMap.java
@@ -132,7 +132,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
public final AtomicInteger tickingGenerated = new AtomicInteger(); // Paper - public
private final String storageName;
private final PlayerMap playerMap = new PlayerMap();
- public final Int2ObjectMap<ChunkMap.TrackedEntity> entityMap = new Int2ObjectOpenHashMap<>();
+ public final Int2ObjectMap<ChunkMap.TrackedEntity> entityMap = new it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap<>(); // Gale - VMP - use linked map for entity trackers - provides faster iteration
private final Long2ByteMap chunkTypeCache = new Long2ByteOpenHashMap();
// Paper - rewrite chunk system
public int serverViewDistance;