AEUGH

gradle.properties

@@ -34,7 +34,7 @@ mod_name=Better Random
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=BSD 2 Clause
 # The mod version. See https://semver.org/
-mod_version=1.3.1
+mod_version=1.3.2
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html

src/main/java/ru/dbotthepony/mc/prng/mixin/LevelMixin.java

@@ -1,15 +1,26 @@
 package ru.dbotthepony.mc.prng.mixin;
 
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Holder;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.resources.ResourceKey;
 import net.minecraft.util.RandomSource;
+import net.minecraft.util.profiling.ProfilerFiller;
 import net.minecraft.world.level.Level;
+import net.minecraft.world.level.dimension.DimensionType;
+import net.minecraft.world.level.storage.WritableLevelData;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Overwrite;
 import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import ru.dbotthepony.mc.prng.BetterRandom;
+import ru.dbotthepony.mc.prng.GJRAND64RandomSource;
+
+import java.util.function.Supplier;
 
 @Mixin(value = Level.class, priority = 10000) // ensure this mixin is applied over other "regular" mixins
 public abstract class LevelMixin {
@@ -17,6 +28,8 @@ public abstract class LevelMixin {
 	@Final
 	private Thread thread;
 
+	// does not work with C2ME, Mixin crashes
+	/*
 	@Redirect(
 		method = "<init>",
 		at = @At(
@@ -27,6 +40,31 @@ public abstract class LevelMixin {
 	public RandomSource ensureBetterRandom() {
 		return BetterRandom.createWorldRandom(() -> thread);
 	}
+	 */
+
+	@Shadow
+	public RandomSource random;
+
+	@Inject(
+		method = "<init>(Lnet/minecraft/world/level/storage/WritableLevelData;Lnet/minecraft/resources/ResourceKey;Lnet/minecraft/core/RegistryAccess;Lnet/minecraft/core/Holder;Ljava/util/function/Supplier;ZZJI)V",
+		at = @At("TAIL")
+	)
+	public void constructorMix(
+		WritableLevelData levelData,
+		ResourceKey<Level> dimension,
+		RegistryAccess registryAccess,
+		Holder<DimensionType> dimensionTypeRegistration,
+		Supplier<ProfilerFiller> profiler,
+		boolean isClientSide,
+		boolean isDebug,
+		long biomeZoomSeed,
+		int maxChainedNeighborUpdates,
+		CallbackInfo info
+	) {
+		if (!(this.random instanceof GJRAND64RandomSource))
+			this.random = BetterRandom.createWorldRandom(() -> thread);
+	}
+
 
 	@Overwrite
 	public BlockPos getBlockRandomPos(int x, int y, int z, int yMask) {

src/main/resources/META-INF/accesstransformer.cfg

@@ -11,3 +11,7 @@ public net.minecraft.world.level.levelgen.LegacyRandomSource seed
 public net.minecraft.world.level.levelgen.XoroshiroRandomSource randomNumberGenerator
 public net.minecraft.world.level.levelgen.Xoroshiro128PlusPlus seedLo
 public net.minecraft.world.level.levelgen.Xoroshiro128PlusPlus seedHi
+
+# This will cause minor slowdown when ZGC or ShenandoahGC is used, but at least it won't crash
+# with C2ME installed
+public-f net.minecraft.world.level.Level random