import Random from 'konpeito/src/math/core/tools/Random.js'

public class | source

Random

Random number class.

Static Method Summary

Static Public Methods
public static	create(init_data: number \| KRandomSettings): * Create Random.

Constructor Summary

Public Constructor
public	constructor(init_data: number \| KRandomSettings) Create Random.

Member Summary

Private Members
private	haveNextNextGaussian: boolean have `NextNextGaussian`
private	nextNextGaussian: number Normally distributed random numbers.
private	rand: RandomBase Random Number Generator.

Method Summary

Public Methods
public	next(bits: number): number Random number of specified bit length.
public	nextBoolean(): boolean Random boolean.
public	nextBytes(size: number): Array<number> 8-bit random number array of specified length.
public	nextDouble(): number Double type random number in the range of [0, 1).
public	nextGaussian(): number Random numbers from a Gaussian distribution.
public	nextInt(x: number): number 32-bit random number.
public	setSeed(seed: number) Initialize random seed.

Static Public Methods

public static create(init_data: number | KRandomSettings): * source

Create Random.

algorithm : "XORSHIFT" / "MLS" / "FAST"

Params:

Name	Type	Attribute	Description
init_data	number \| KRandomSettings	optional	Seed number for random number generation. If not specified, create from time.

Return:

Public Constructors

public constructor(init_data: number | KRandomSettings) source

Create Random.

algorithm : "XORSHIFT" / "MLS" / "FAST"

Params:

Name	Type	Attribute	Description
init_data	number \| KRandomSettings	optional	Seed number for random number generation. If not specified, create from time.

Private Members

private haveNextNextGaussian: boolean source

have NextNextGaussian

private nextNextGaussian: number source

Normally distributed random numbers.

private rand: RandomBase source

Random Number Generator.

Public Methods

public next(bits: number): number source

Random number of specified bit length.

Params:

Name	Type	Attribute	Description
bits	number		Required number of bits (up to 64 possible).

Return:

number

public nextBoolean(): boolean source

Random boolean.

Return:

boolean

public nextBytes(size: number): Array<number> source

8-bit random number array of specified length.

Params:

Name	Type	Attribute	Description
size	number		必要な長さ

Return:

Array<number>

public nextDouble(): number source

Double type random number in the range of [0, 1).

Return:

number

public nextGaussian(): number source

Random numbers from a Gaussian distribution. This random number is a distribution with an average value of 0 and a standard deviation of 1.

Return:

number

public nextInt(x: number): number source

32-bit random number.

Params:

Name	Type	Attribute	Description
x	number	optional	指定した値未満の数値を作る

Return:

number

public setSeed(seed: number) source

Initialize random seed.

Params:

Name	Type	Attribute	Description
seed	number