Fix CraftWorld#isChunkGenerated

The upstream implementation is returning true for non-full chunks.

This fix is not ideal since the new chunk system doesn't have a region file/chunk status patch. May want to be revisited before a non-experimental release.
This commit is contained in:
Jason Penilla 2024-06-18 12:44:07 -07:00
parent 090775eff4
commit 7bbe6820c2
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@ -0,0 +1,46 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Tue, 18 Jun 2024 12:43:06 -0700
Subject: [PATCH] Fix CraftWorld#isChunkGenerated
The upstream implementation is returning true for non-full chunks.
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index fe9e8d1d4ae1f7a4e8f4cf5688004fc969422b3c..b466a1edaa6c1123dedda8376eabc3be0a011874 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -367,11 +367,30 @@ public class CraftWorld extends CraftRegionAccessor implements World {
@Override
public boolean isChunkGenerated(int x, int z) {
- try {
- return this.isChunkLoaded(x, z) || this.world.getChunkSource().chunkMap.read(new ChunkPos(x, z)).get().isPresent();
- } catch (InterruptedException | ExecutionException ex) {
- throw new RuntimeException(ex);
+ // Paper start - Fix this method
+ if (!Bukkit.isPrimaryThread()) {
+ return java.util.concurrent.CompletableFuture.supplyAsync(() -> {
+ return CraftWorld.this.isChunkGenerated(x, z);
+ }, world.getChunkSource().mainThreadProcessor).join();
+ }
+ ChunkAccess chunk = world.getChunkSource().getChunkAtImmediately(x, z);
+ if (chunk == null) {
+ chunk = world.getChunkSource().chunkMap.getUnloadingChunkHolder(x, z).getLatestChunk();
+ }
+ if (chunk != null) {
+ return chunk instanceof ImposterProtoChunk || chunk instanceof net.minecraft.world.level.chunk.LevelChunk;
}
+ final java.util.concurrent.CompletableFuture<ChunkAccess> future = new java.util.concurrent.CompletableFuture<>();
+ ca.spottedleaf.moonrise.patches.chunk_system.ChunkSystem.scheduleChunkLoad(
+ this.world, x, z, false, ChunkStatus.EMPTY, false, ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor.Priority.NORMAL, future::complete
+ );
+ return future.thenApply(c -> {
+ if (c != null) {
+ return c.getPersistedStatus() == ChunkStatus.FULL;
+ }
+ return false;
+ }).join();
+ // Paper end - Fix this method
}
@Override