papermc/Spigot-Server-Patches/0310-Optimize-Biome-Mob-Lookups-for-Mob-Spawning.patch
Spottedleaf 5c7081fecc Update upstream & fix some chunk related issues (#2177)
* Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
45690fe9 SPIGOT-5047: Correct slot types for 1.14 inventories

CraftBukkit Changes:
4090d01f SPIGOT-5047: Correct slot types for 1.14 inventories
e8c08362 SPIGOT-5046: World#getLoadedChunks returning inaccessible cached chunks.
d445af3b SPIGOT-5067: Add item meta for 1.14 spawn eggs

* Bring Chunk load checks in-line with spigot

As of the last upstream merge spigot now checks ticket level status
when returning loaded chunks for a world from api. Now our checks
will respect that decision.

* Fix spawn ticket levels

Vanilla would keep the inner chunks of spawn available for ticking,
however my changes made all chunks non-ticking. Resolve by changing
ticket levels for spawn chunks inside the border to respect this
behavior.


* Make World#getChunkIfLoadedImmediately return only entity ticking chunks

Mojang appears to be using chunks with level > 33 (non-ticking chunks)
as cached chunks and not actually loaded chunks.

* Bring all loaded checks in line with spigot

Loaded chunks must be at least border  chunks, or level <= 33
2019-06-14 03:27:40 +01:00

71 lines
2.6 KiB
Diff

From 7fa8a83bc26c6474100107a2221e616a4941693b Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 12 Sep 2018 21:47:01 -0400
Subject: [PATCH] Optimize Biome Mob Lookups for Mob Spawning
Uses an EnumMap as well as a Set paired List for O(1) contains calls.
diff --git a/src/main/java/net/minecraft/server/BiomeBase.java b/src/main/java/net/minecraft/server/BiomeBase.java
index 9a839d6540..72eb669c50 100644
--- a/src/main/java/net/minecraft/server/BiomeBase.java
+++ b/src/main/java/net/minecraft/server/BiomeBase.java
@@ -38,7 +38,7 @@ public abstract class BiomeBase {
protected final Map<WorldGenStage.Decoration, List<WorldGenFeatureConfigured<?>>> r = Maps.newHashMap();
protected final List<WorldGenFeatureConfigured<?>> s = Lists.newArrayList();
protected final Map<StructureGenerator<?>, WorldGenFeatureConfiguration> t = Maps.newHashMap();
- private final Map<EnumCreatureType, List<BiomeBase.BiomeMeta>> u = Maps.newHashMap();
+ private final java.util.EnumMap<EnumCreatureType, List<BiomeBase.BiomeMeta>> u = Maps.newEnumMap(EnumCreatureType.class); // Paper
@Nullable
public static BiomeBase a(BiomeBase biomebase) {
@@ -85,7 +85,7 @@ public abstract class BiomeBase {
for (j = 0; j < i; ++j) {
EnumCreatureType enumcreaturetype = aenumcreaturetype[j];
- this.u.put(enumcreaturetype, Lists.newArrayList());
+ this.u.put(enumcreaturetype, new MobList()); // Paper
}
} else {
@@ -283,6 +283,38 @@ public abstract class BiomeBase {
return this.m;
}
+ // 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
+ public static class MobList extends java.util.ArrayList<BiomeMeta> {
+ java.util.Set<BiomeMeta> biomes = new java.util.HashSet<>();
+
+ @Override
+ public boolean contains(Object o) {
+ return biomes.contains(o);
+ }
+
+ @Override
+ public boolean add(BiomeMeta biomeMeta) {
+ biomes.add(biomeMeta);
+ return super.add(biomeMeta);
+ }
+
+ @Override
+ public BiomeMeta remove(int index) {
+ BiomeMeta removed = super.remove(index);
+ if (removed != null) {
+ biomes.remove(removed);
+ }
+ return removed;
+ }
+
+ @Override
+ public void clear() {
+ biomes.clear();
+ super.clear();
+ }
+ }
+ // Paper end
+
public static class a {
@Nullable
--
2.21.0