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
official	dlt
intermediary	net/minecraft/class_6677
named	net/minecraft/util/math/random/Xoroshiro128PlusPlusRandom

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
official	c	Ldlt;c:F
intermediary	field_35148	Lnet/minecraft/class_6677;field_35148:F
named	FLOAT_MULTIPLIER	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;FLOAT_MULTIPLIER:F

DOUBLE_MULTIPLIER

private static final double DOUBLE_MULTIPLIER

See Also:

• Constant Field Values

Mappings:

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

CODEC

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

Mappings:

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

implementation

private Xoroshiro128PlusPlusRandomImpl implementation

Mappings:

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

gaussianGenerator

private final GaussianGenerator gaussianGenerator

Mappings:

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

Constructor Details

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(long seed)

Mappings:

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

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(RandomSeed.XoroshiroSeed seed)

Mappings:

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

Xoroshiro128PlusPlusRandom

public Xoroshiro128PlusPlusRandom(long seedLo,
 long seedHi)

Mappings:

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

Xoroshiro128PlusPlusRandom

private Xoroshiro128PlusPlusRandom(Xoroshiro128PlusPlusRandomImpl implementation)

Mappings:

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

Method Details

split

public Random split()

Specified by:

split in interface Random

Mappings:

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

nextSplitter

public RandomSplitter nextSplitter()

Specified by:

nextSplitter in interface Random

Mappings:

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

setSeed

public void setSeed(long seed)

Specified by:

setSeed in interface Random

Mappings:

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

nextInt

public int nextInt()

Specified by:

nextInt in interface Random

Mappings:

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

nextInt

public int nextInt(int bound)

Specified by:

nextInt in interface Random

Mappings:

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

nextLong

public long nextLong()

Specified by:

nextLong in interface Random

Mappings:

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

nextBoolean

public boolean nextBoolean()

Specified by:

nextBoolean in interface Random

Mappings:

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

nextFloat

public float nextFloat()

Specified by:

nextFloat in interface Random

Mappings:

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

nextDouble

public double nextDouble()

Specified by:

nextDouble in interface Random

Mappings:

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

nextGaussian

public double nextGaussian()

Specified by:

nextGaussian in interface Random

Mappings:

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

skip

public void skip(int count)

Specified by:

skip in interface Random

Mappings:

Namespace	Name	Mixin selector
official	b	Lasc;b(I)V
intermediary	method_33650	Lnet/minecraft/class_5819;method_33650(I)V
named	skip	Lnet/minecraft/util/math/random/Random;skip(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
official	c	Ldlt;c(I)J
intermediary	method_39008	Lnet/minecraft/class_6677;method_39008(I)J
named	next	Lnet/minecraft/util/math/random/Xoroshiro128PlusPlusRandom;next(I)J