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526795bacd
* Update patches to handle vineflower decompiler * update patches again to handle inlined simple lambdas * update vf again and re-apply/rebuild patches * update patches after removal of verify-merges flag * fix compile issue * remove maven local * fix some issues * address more issues * fix collision patch * use paperweight release * more fixes * update fineflower and fix patches again * add missing comment descriptor --------- Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
59 lines
3.9 KiB
Diff
59 lines
3.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 12 Mar 2022 06:31:13 -0800
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Subject: [PATCH] Fix swamp hut cat generation deadlock
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The worldgen thread will attempt to get structure references
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via the world's getChunkAt method, which is fine if the gen is
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not cancelled - but if the chunk was unloaded, the call will block
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indefinitely. Instead of using the world state, we use the already
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supplied ServerLevelAccessor which will always have the chunk available.
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Cat.java b/src/main/java/net/minecraft/world/entity/animal/Cat.java
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index 534630b0161c8d869e49e7a59572193550be0671..7dfd2b17e82a80683af28779d0bd8f64a909c3b6 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Cat.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Cat.java
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@@ -364,7 +364,7 @@ public class Cat extends TamableAnimal implements VariantHolder<CatVariant> {
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});
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ServerLevel worldserver = world.getLevel();
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- if (worldserver.structureManager().getStructureWithPieceAt(this.blockPosition(), StructureTags.CATS_SPAWN_AS_BLACK).isValid()) {
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+ if (worldserver.structureManager().getStructureWithPieceAt(this.blockPosition(), StructureTags.CATS_SPAWN_AS_BLACK, world).isValid()) { // Paper - Fix swamp hut cat generation deadlock
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this.setVariant((CatVariant) BuiltInRegistries.CAT_VARIANT.getOrThrow(CatVariant.ALL_BLACK));
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this.setPersistenceRequired();
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}
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diff --git a/src/main/java/net/minecraft/world/level/StructureManager.java b/src/main/java/net/minecraft/world/level/StructureManager.java
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index 09e0c6b6bddcba2f4a59838ac63cda3188f71e41..07eb481380e8fd4e492f36342ba633579c1b624e 100644
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--- a/src/main/java/net/minecraft/world/level/StructureManager.java
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+++ b/src/main/java/net/minecraft/world/level/StructureManager.java
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@@ -46,7 +46,12 @@ public class StructureManager {
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}
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public List<StructureStart> startsForStructure(ChunkPos pos, Predicate<Structure> predicate) {
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- Map<Structure, LongSet> map = this.level.getChunk(pos.x, pos.z, ChunkStatus.STRUCTURE_REFERENCES).getAllReferences();
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+ // Paper start - Fix swamp hut cat generation deadlock
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+ return this.startsForStructure(pos, predicate, null);
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+ }
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+ public List<StructureStart> startsForStructure(ChunkPos pos, Predicate<Structure> predicate, @Nullable ServerLevelAccessor levelAccessor) {
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+ Map<Structure, LongSet> map = (levelAccessor == null ? this.level : levelAccessor).getChunk(pos.x, pos.z, ChunkStatus.STRUCTURE_REFERENCES).getAllReferences();
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+ // Paper end - Fix swamp hut cat generation deadlock
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Builder<StructureStart> builder = ImmutableList.builder();
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for (Entry<Structure, LongSet> entry : map.entrySet()) {
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@@ -111,10 +116,15 @@ public class StructureManager {
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}
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public StructureStart getStructureWithPieceAt(BlockPos pos, TagKey<Structure> structureTag) {
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+ // Paper start - Fix swamp hut cat generation deadlock
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+ return this.getStructureWithPieceAt(pos, structureTag, null);
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+ }
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+ public StructureStart getStructureWithPieceAt(BlockPos pos, TagKey<Structure> structureTag, @Nullable ServerLevelAccessor levelAccessor) {
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+ // Paper end - Fix swamp hut cat generation deadlock
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Registry<Structure> registry = this.registryAccess().registryOrThrow(Registries.STRUCTURE);
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for (StructureStart structureStart : this.startsForStructure(
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- new ChunkPos(pos), structure -> registry.getHolder(registry.getId(structure)).map(reference -> reference.is(structureTag)).orElse(false)
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+ new ChunkPos(pos), structure -> registry.getHolder(registry.getId(structure)).map(reference -> reference.is(structureTag)).orElse(false), levelAccessor // Paper - Fix swamp hut cat generation deadlock
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)) {
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if (this.structureHasPieceAt(pos, structureStart)) {
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return structureStart;
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