R3944Realms/ModernFix-fix
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Fix optimize_surface_rules breaking mods that provide custom BiomeManagers

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embeddedt 2026-06-11 20:01:31 -04:00
parent 7fbfcf1a92
commit 292a6aeab3
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GPG Key ID: A69433EC199B5613
2 changed files with 21 additions and 6 deletions
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14
src/main/java/org/embeddedt/modernfix/common/mixin/perf/optimize_surface_rules/SurfaceSystemMixin.java
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@ -37,11 +37,18 @@ public class SurfaceSystemMixin {
@Local(ordinal = 0, argsOnly = true) BiomeManager manager,
@Local(ordinal = 0, argsOnly = true) ChunkAccess chunk,
@Share("chunkBiomeLookup") LocalRef<ChunkBiomeLookup> lookupRef) {
// If mods use their own BiomeManager subclass, we cannot trust them to use the same blurring as vanilla,
// so we cannot apply our optimized path
if (manager.getClass() == BiomeManager.class) {
var lookup = MFIX_LOOKUP_CACHE.get();
BiomeManagerAccessor accessor = (BiomeManagerAccessor)manager;
lookup.prepare(accessor.mfix$getBiomeSource(), accessor.mfix$getZoomSeed(), chunk, manager);
lookupRef.set(lookup);
return lookup;
} else {
lookupRef.set(null);
return biomeGetter;
}
}
@Inject(method = "buildSurface", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/levelgen/SurfaceRules$RuleSource;apply(Ljava/lang/Object;)Ljava/lang/Object;", ordinal = 0))
@ -60,7 +67,12 @@ public class SurfaceSystemMixin {
@Redirect(method = "buildSurface", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/biome/BiomeManager;getBiome(Lnet/minecraft/core/BlockPos;)Lnet/minecraft/core/Holder;"))
private Holder<Biome> useFasterLookup(BiomeManager instance, BlockPos pos, @Share("chunkBiomeLookup") LocalRef<ChunkBiomeLookup> lookupRef) {
return lookupRef.get().apply(pos);
var lookup = lookupRef.get();
if (lookup != null) {
return lookup.apply(pos);
} else {
return instance.getBiome(pos);
}
}
@Inject(method = "buildSurface", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/levelgen/SurfaceRules$Context;<init>(Lnet/minecraft/world/level/levelgen/SurfaceSystem;Lnet/minecraft/world/level/levelgen/RandomState;Lnet/minecraft/world/level/chunk/ChunkAccess;Lnet/minecraft/world/level/levelgen/NoiseChunk;Ljava/util/function/Function;Lnet/minecraft/core/Registry;Lnet/minecraft/world/level/levelgen/WorldGenerationContext;)V"))

3
src/main/java/org/embeddedt/modernfix/world/gen/ChunkBiomeLookup.java
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@ -97,6 +97,9 @@ public class ChunkBiomeLookup implements Function<BlockPos, Holder<Biome>> {
}
public void dispose() {
if (this.fallbackManager == null) {
return;
}
// Make sure we do not retain strong references to the biome holders
Arrays.fill(biomes, null);
this.fallbackManager = null;