package net.minecraft.world.level.levelgen;

import com.mojang.serialization.Codec;
import java.util.stream.LongStream;
import net.minecraft.Util;

public class Xoroshiro128PlusPlus {
    private long seedLo;
    private long seedHi;
    public static final Codec<Xoroshiro128PlusPlus> CODEC = Codec.LONG_STREAM
        .comapFlatMap(
            p_327461_ -> Util.fixedSize(p_327461_, 2).map(p_287742_ -> new Xoroshiro128PlusPlus(p_287742_[0], p_287742_[1])),
            p_287687_ -> LongStream.of(p_287687_.seedLo, p_287687_.seedHi)
        );

    public Xoroshiro128PlusPlus(RandomSupport.Seed128bit p_190095_) {
        this(p_190095_.seedLo(), p_190095_.seedHi());
    }

    public Xoroshiro128PlusPlus(long p_190092_, long p_190093_) {
        this.seedLo = p_190092_;
        this.seedHi = p_190093_;
        if ((this.seedLo | this.seedHi) == 0L) {
            this.seedLo = -7046029254386353131L;
            this.seedHi = 7640891576956012809L;
        }
    }

    public long nextLong() {
        long i = this.seedLo;
        long j = this.seedHi;
        long k = Long.rotateLeft(i + j, 17) + i;
        j ^= i;
        this.seedLo = Long.rotateLeft(i, 49) ^ j ^ j << 21;
        this.seedHi = Long.rotateLeft(j, 28);
        return k;
    }
}