PaperMC/patches/server/0363-Optimise-getChunkAt-calls-for-loaded-chunks.patch
Jake Potrebic 7fa8870043
Updated Upstream (Bukkit/CraftBukkit) (#7672)
Upstream has released updates that appear 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:
7902647a PR-737: Update WorldCreator#generatorSettings docs
67556a50 PR-736: Update README

CraftBukkit Changes:
10922194 Java 18 support
d53c4fb6 PR-1039: Use correct ops in GeneratorSettings
a567e4ae PR-1038: Removed the no longer needed getChunkUnchecked method from ChunkProviderServer.
4ac8fcce SPIGOT-6980: Since 1.18.2, World#isChunkLoaded returned false for chunks that have just been loaded (e.g. inside ChunkLoadEvent).
e6cc7c70 PR-1035: Update README
3ec79a27 SPIGOT-5140: Call EntityChangeBlockEvent when a ChorusFlower is destroyed by a projectile
2022-03-29 10:32:18 +02:00

66 lines
2.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 25 Jan 2020 17:04:35 -0800
Subject: [PATCH] Optimise getChunkAt calls for loaded chunks
bypass the need to get a player chunk, then get the either,
then unwrap it...
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 39b4ddbb87e6ec2e8103445625ff0d7d368bd513..dec6aab50cebdfe1d0c93d71a8579b78b0ef7b9d 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -600,6 +600,12 @@ public class ServerChunkCache extends ChunkSource {
return this.getChunk(x, z, leastStatus, create);
}, this.mainThreadProcessor).join();
} else {
+ // Paper start - optimise for loaded chunks
+ LevelChunk ifLoaded = this.getChunkAtIfLoadedMainThread(x, z);
+ if (ifLoaded != null) {
+ return ifLoaded;
+ }
+ // Paper end
ProfilerFiller gameprofilerfiller = this.level.getProfiler();
gameprofilerfiller.incrementCounter("getChunk");
@@ -651,39 +657,7 @@ public class ServerChunkCache extends ChunkSource {
if (Thread.currentThread() != this.mainThread) {
return null;
} else {
- this.level.getProfiler().incrementCounter("getChunkNow");
- long k = ChunkPos.asLong(chunkX, chunkZ);
-
- for (int l = 0; l < 4; ++l) {
- if (k == this.lastChunkPos[l] && this.lastChunkStatus[l] == ChunkStatus.FULL) {
- ChunkAccess ichunkaccess = this.lastChunk[l];
-
- return ichunkaccess instanceof LevelChunk ? (LevelChunk) ichunkaccess : null;
- }
- }
-
- ChunkHolder playerchunk = this.getVisibleChunkIfPresent(k);
-
- if (playerchunk == null) {
- return null;
- } else {
- Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure> either = (Either) playerchunk.getFutureIfPresent(ChunkStatus.FULL).getNow(null); // CraftBukkit - decompile error
-
- if (either == null) {
- return null;
- } else {
- ChunkAccess ichunkaccess1 = (ChunkAccess) either.left().orElse(null); // CraftBukkit - decompile error
-
- if (ichunkaccess1 != null) {
- this.storeInCache(k, ichunkaccess1, ChunkStatus.FULL);
- if (ichunkaccess1 instanceof LevelChunk) {
- return (LevelChunk) ichunkaccess1;
- }
- }
-
- return null;
- }
- }
+ return this.getChunkAtIfLoadedMainThread(chunkX, chunkZ); // Paper - optimise for loaded chunks
}
}