Package net.minecraft.util.math.random

Class Xoroshiro128PlusPlusRandom

java.lang.Object

net.minecraft.util.math.random.Xoroshiro128PlusPlusRandom

All Implemented Interfaces:

Random

public class Xoroshiro128PlusPlusRandom
extends Object
implements Random

Xoroshiro128++ based pseudo random number generator.

Implementation Note:

The actual implementation can be found on Xoroshiro128PlusPlusRandomImpl.

Mappings:

Namespace	Name
named	net/minecraft/util/math/random/Xoroshiro128PlusPlusRandom
intermediary	net/minecraft/class_6677
official	dyw

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Xoroshiro128PlusPlusRandom.Splitter

Field Summary

Fields

Modifier and Type	Field	Description
static final com.mojang.serialization.Codec<Xoroshiro128PlusPlusRandom>	CODEC
private static final double	DOUBLE_MULTIPLIER
private static final float	FLOAT_MULTIPLIER
private final GaussianGenerator	gaussianGenerator
private Xoroshiro128PlusPlusRandomImpl	implementation

Fields inherited from interface net.minecraft.util.math.random.Random

field_38930

Constructor Summary

Constructors

Modifier	Constructor	Description
	Xoroshiro128PlusPlusRandom(long seed)
	Xoroshiro128PlusPlusRandom(long seedLo, long seedHi)
	Xoroshiro128PlusPlusRandom(RandomSeed.XoroshiroSeed seed)
private	Xoroshiro128PlusPlusRandom(Xoroshiro128PlusPlusRandomImpl implementation)

Method Summary

Modifier and Type	Method	Description
private long	next(int bits)	Returns bits upper bits of random value.
boolean	nextBoolean()
double	nextDouble()
float	nextFloat()
double	nextGaussian()
int	nextInt()
int	nextInt(int bound)
long	nextLong()
RandomSplitter	nextSplitter()
void	setSeed(long seed)
void	skip(int count)
Random	split()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.minecraft.util.math.random.Random

nextBetween, nextBetweenExclusive, nextTriangular

Field Details

FLOAT_MULTIPLIER

private static final float FLOAT_MULTIPLIER

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
named	FLOAT_MULTIPLIER	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;FLOAT_MULTIPLIER:F
intermediary	field_35148	Lnet/minecraft/class_6677;field_35148:F
official	c	Ldyw;c:F

DOUBLE_MULTIPLIER

private static final double DOUBLE_MULTIPLIER

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
named	DOUBLE_MULTIPLIER	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;DOUBLE_MULTIPLIER:D
intermediary	field_35149	Lnet/minecraft/class_6677;field_35149:D
official	d	Ldyw;d:D

CODEC

public static final com.mojang.serialization.Codec<Xoroshiro128PlusPlusRandom> CODEC

Mappings:

Namespace	Name	Mixin selector
named	CODEC	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;CODEC:Lcom/mojang/serialization/Codec;
intermediary	field_44880	Lnet/minecraft/class_6677;field_44880:Lcom/mojang/serialization/Codec;
official	b	Ldyw;b:Lcom/mojang/serialization/Codec;

implementation

private Xoroshiro128PlusPlusRandomImpl implementation

Mappings:

Namespace	Name	Mixin selector
named	implementation	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;implementation:Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandomImpl;
intermediary	field_35150	Lnet/minecraft/class_6677;field_35150:Lnet/minecraft/class_6676;
official	e	Ldyw;e:Ldyv;

gaussianGenerator

private final GaussianGenerator gaussianGenerator

Mappings:

Namespace	Name	Mixin selector
named	gaussianGenerator	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;gaussianGenerator:Lnet/minecraft/util/math/random/GaussianGenerator;
intermediary	field_35151	Lnet/minecraft/class_6677;field_35151:Lnet/minecraft/class_6672;
official	f	Ldyw;f:Ldxx;

Constructor Details

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(long seed)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;<init>(J)V
intermediary	<init>	Lnet/minecraft/class_6677;<init>(J)V
official	<init>	Ldyw;<init>(J)V

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(RandomSeed.XoroshiroSeed seed)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;<init>(Lnet/minecraft/util/math/random/RandomSeed$XoroshiroSeed;)V
intermediary	<init>	Lnet/minecraft/class_6677;<init>(Lnet/minecraft/class_6673$class_6674;)V
official	<init>	Ldyw;<init>(Ldyk$a;)V

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(long seedLo,
 long seedHi)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;<init>(JJ)V
intermediary	<init>	Lnet/minecraft/class_6677;<init>(JJ)V
official	<init>	Ldyw;<init>(JJ)V

Xoroshiro128PlusPlusRandom

private Xoroshiro128PlusPlusRandom(Xoroshiro128PlusPlusRandomImpl implementation)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;<init>(Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandomImpl;)V
intermediary	<init>	Lnet/minecraft/class_6677;<init>(Lnet/minecraft/class_6676;)V
official	<init>	Ldyw;<init>(Ldyv;)V

Method Details

split

public Random split()

Specified by:

split in interface Random

Mappings:

Namespace	Name	Mixin selector
named	split	Lnet/minecraft/util/math/random/Random;split()Lnet/minecraft/util/math/random/Random;
intermediary	method_38420	Lnet/minecraft/class_5819;method_38420()Lnet/minecraft/class_5819;
official	d	Lazh;d()Lazh;

nextSplitter

public RandomSplitter nextSplitter()

Specified by:

nextSplitter in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextSplitter	Lnet/minecraft/util/math/random/Random;nextSplitter()Lnet/minecraft/util/math/random/RandomSplitter;
intermediary	method_38421	Lnet/minecraft/class_5819;method_38421()Lnet/minecraft/class_6574;
official	e	Lazh;e()Ldyi;

setSeed

public void setSeed(long seed)

Specified by:

setSeed in interface Random

Mappings:

Namespace	Name	Mixin selector
named	setSeed	Lnet/minecraft/util/math/random/Random;setSeed(J)V
intermediary	method_43052	Lnet/minecraft/class_5819;method_43052(J)V
official	b	Lazh;b(J)V

nextInt

public int nextInt()

Specified by:

nextInt in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextInt	Lnet/minecraft/util/math/random/Random;nextInt()I
intermediary	method_43054	Lnet/minecraft/class_5819;method_43054()I
official	f	Lazh;f()I

nextInt

public int nextInt(int bound)

Specified by:

nextInt in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextInt	Lnet/minecraft/util/math/random/Random;nextInt(I)I
intermediary	method_43048	Lnet/minecraft/class_5819;method_43048(I)I
official	a	Lazh;a(I)I

nextLong

public long nextLong()

Specified by:

nextLong in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextLong	Lnet/minecraft/util/math/random/Random;nextLong()J
intermediary	method_43055	Lnet/minecraft/class_5819;method_43055()J
official	g	Lazh;g()J

nextBoolean

public boolean nextBoolean()

Specified by:

nextBoolean in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextBoolean	Lnet/minecraft/util/math/random/Random;nextBoolean()Z
intermediary	method_43056	Lnet/minecraft/class_5819;method_43056()Z
official	h	Lazh;h()Z

nextFloat

public float nextFloat()

Specified by:

nextFloat in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextFloat	Lnet/minecraft/util/math/random/Random;nextFloat()F
intermediary	method_43057	Lnet/minecraft/class_5819;method_43057()F
official	i	Lazh;i()F

nextDouble

public double nextDouble()

Specified by:

nextDouble in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextDouble	Lnet/minecraft/util/math/random/Random;nextDouble()D
intermediary	method_43058	Lnet/minecraft/class_5819;method_43058()D
official	j	Lazh;j()D

nextGaussian

public double nextGaussian()

Specified by:

nextGaussian in interface Random

Mappings:

Namespace	Name	Mixin selector
named	nextGaussian	Lnet/minecraft/util/math/random/Random;nextGaussian()D
intermediary	method_43059	Lnet/minecraft/class_5819;method_43059()D
official	k	Lazh;k()D

skip

public void skip(int count)

Specified by:

skip in interface Random

Mappings:

Namespace	Name	Mixin selector
named	skip	Lnet/minecraft/util/math/random/Random;skip(I)V
intermediary	method_33650	Lnet/minecraft/class_5819;method_33650(I)V
official	b	Lazh;b(I)V

next

private long next(int bits)

Returns bits upper bits of random value.

Returns:

bits upper bits of random value

Implementation Note:

In Xoroshiro128++, the lower bits have to be discarded in order to ensure proper randomness. For example, to obtain a double, the upper 53 bits should be used instead of the lower 53 bits.

Mappings:

Namespace	Name	Mixin selector
named	next	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;next(I)J
intermediary	method_39008	Lnet/minecraft/class_6677;method_39008(I)J
official	c	Ldyw;c(I)J