mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-24 09:58:00 +01:00
63 lines
3.7 KiB
Diff
63 lines
3.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
|
|
Date: Sat, 12 Mar 2022 06:31:13 -0800
|
|
Subject: [PATCH] Fix swamp hut cat generation deadlock
|
|
|
|
The worldgen thread will attempt to get structure references
|
|
via the world's getChunkAt method, which is fine if the gen is
|
|
not cancelled - but if the chunk was unloaded, the call will block
|
|
indefinitely. Instead of using the world state, we use the already
|
|
supplied ServerLevelAccessor which will always have the chunk available.
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/entity/animal/Cat.java b/src/main/java/net/minecraft/world/entity/animal/Cat.java
|
|
index 1bc8334691147a0f52ad0e97236c9e007b95ba34..770b15f5413eb38890587aa6af2a56f15bf5934f 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/animal/Cat.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/animal/Cat.java
|
|
@@ -363,7 +363,7 @@ public class Cat extends TamableAnimal implements VariantHolder<CatVariant> {
|
|
});
|
|
ServerLevel worldserver = world.getLevel();
|
|
|
|
- if (worldserver.structureManager().getStructureWithPieceAt(this.blockPosition(), StructureTags.CATS_SPAWN_AS_BLACK).isValid()) {
|
|
+ if (worldserver.structureManager().getStructureWithPieceAt(this.blockPosition(), StructureTags.CATS_SPAWN_AS_BLACK, world).isValid()) { // Paper - fix deadlock
|
|
this.setVariant((CatVariant) BuiltInRegistries.CAT_VARIANT.getOrThrow(CatVariant.ALL_BLACK));
|
|
this.setPersistenceRequired();
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/world/level/StructureManager.java b/src/main/java/net/minecraft/world/level/StructureManager.java
|
|
index b33a015b834873f279bf33a64974ef440a37df79..09c85ed428b8eaf51f8b3c6e45cce925f05ab354 100644
|
|
--- a/src/main/java/net/minecraft/world/level/StructureManager.java
|
|
+++ b/src/main/java/net/minecraft/world/level/StructureManager.java
|
|
@@ -44,7 +44,12 @@ public class StructureManager {
|
|
}
|
|
|
|
public List<StructureStart> startsForStructure(ChunkPos pos, Predicate<Structure> predicate) {
|
|
- Map<Structure, LongSet> map = this.level.getChunk(pos.x, pos.z, ChunkStatus.STRUCTURE_REFERENCES).getAllReferences();
|
|
+ // Paper start
|
|
+ return this.startsForStructure(pos, predicate, null);
|
|
+ }
|
|
+ public List<StructureStart> startsForStructure(ChunkPos pos, Predicate<Structure> predicate, @Nullable ServerLevelAccessor levelAccessor) {
|
|
+ Map<Structure, LongSet> map = (levelAccessor == null ? this.level : levelAccessor).getChunk(pos.x, pos.z, ChunkStatus.STRUCTURE_REFERENCES).getAllReferences();
|
|
+ // Paper end
|
|
ImmutableList.Builder<StructureStart> builder = ImmutableList.builder();
|
|
|
|
for(Map.Entry<Structure, LongSet> entry : map.entrySet()) {
|
|
@@ -108,13 +113,18 @@ public class StructureManager {
|
|
}
|
|
|
|
public StructureStart getStructureWithPieceAt(BlockPos pos, TagKey<Structure> structureTag) {
|
|
+ // Paper start
|
|
+ return this.getStructureWithPieceAt(pos, structureTag, null);
|
|
+ }
|
|
+ public StructureStart getStructureWithPieceAt(BlockPos pos, TagKey<Structure> structureTag, @Nullable ServerLevelAccessor levelAccessor) {
|
|
+ // Paper end
|
|
Registry<Structure> registry = this.registryAccess().registryOrThrow(Registries.STRUCTURE);
|
|
|
|
for(StructureStart structureStart : this.startsForStructure(new ChunkPos(pos), (structure) -> {
|
|
return registry.getHolder(registry.getId(structure)).map((reference) -> {
|
|
return reference.is(structureTag);
|
|
}).orElse(false);
|
|
- })) {
|
|
+ }, levelAccessor)) { // Paper
|
|
if (this.structureHasPieceAt(pos, structureStart)) {
|
|
return structureStart;
|
|
}
|