src/main/kotlin/ru/dbotthepony/mc/otm/core/util/GJRAND64RandomSource.kt

@@ -2,12 +2,15 @@ package ru.dbotthepony.mc.otm.core.util
 
 import net.minecraft.util.Mth
 import net.minecraft.util.RandomSource
+import net.minecraft.world.level.levelgen.MarsagliaPolarGaussian
 import net.minecraft.world.level.levelgen.PositionalRandomFactory
 import net.minecraft.world.level.levelgen.RandomSupport
 import ru.dbotthepony.kommons.random.GJRAND64Random
 import java.lang.StringBuilder
 
 class GJRAND64RandomSource : GJRAND64Random, IRandomSourceGenerator {
+	private val gaussian = MarsagliaPolarGaussian(this)
+
 	constructor() : super(RandomSupport.generateUniqueSeed(), RandomSupport.generateUniqueSeed())
 	constructor(seed: Long) : super(seed)
 	constructor(seed0: Long, seed1: Long) : super(seed0, seed1)
@@ -16,6 +19,10 @@ class GJRAND64RandomSource : GJRAND64Random, IRandomSourceGenerator {
 		return nextLong().ushr(32).toInt()
 	}
 
+	override fun nextGaussian(): Double {
+		return gaussian.nextGaussian()
+	}
+
 	override fun fork(): RandomSource {
 		return GJRAND64RandomSource(nextLong(), nextLong())
 	}
@@ -26,6 +33,7 @@ class GJRAND64RandomSource : GJRAND64Random, IRandomSourceGenerator {
 
 	override fun setSeed(seed: Long) {
 		reinitialize(seed)
+		gaussian.reset()
 	}
 
 	class Positional(private val seed0: Long, private val seed1: Long) : PositionalRandomFactory {

src/main/kotlin/ru/dbotthepony/mc/otm/core/util/IRandomSourceGenerator.kt

@@ -26,7 +26,5 @@ interface IRandomSourceGenerator : RandomSource, RandomGenerator {
 		return super.nextDouble()
 	}
 
-	override fun nextGaussian(): Double {
-		return super.nextGaussian()
-	}
+	override fun nextGaussian(): Double
 }