Class Random

Seeded pseudo-random number generator using the Xorwow variant of Marsaglia's xorshift family.

Backed by a Uint32Array of 6 state words (4 xorshift lanes + a Weyl counter + last output), so the instance is itself the state buffer.

See

https://en.wikipedia.org/wiki/Xorshift#xorwow

Hierarchy

Uint32Array
- Random

Indexable

[index: number]: number

Index

Constructors

Properties

Accessors

Methods

reset randomUint32 randomFloat randomDouble

Constructors

constructor

new Random(seed?: number): Random
Parameters
- Optionalseed: number
Returns Random
Overrides Uint32Array.constructor
- Defined in src/math/random.ts:13

Properties

`Static`global

global: Random = ...

Process-wide shared instance, seeded from Date.now() at module load.

Accessors

seed

get seed(): number
Returns the current head state word (does not return the originally-supplied seed).

Returns number
- Defined in src/math/random.ts:23
set seed(seed: number): void
Re-seeds the generator and resets all internal state from seed.
Parameters
- seed: number
Returns void
- Defined in src/math/random.ts:26

Methods

reset

reset(): void
Restores the generator to the state right after construction (replays the same sequence).

Returns void
- Defined in src/math/random.ts:37

randomUint32

randomUint32(): number
Returns a uniform random integer in [0, 0xFFFFFFFF].

Returns number
- Defined in src/math/random.ts:40

randomFloat

randomFloat(min?: number, max?: number): number
Returns a single-precision float in [0, 1], or in [min, max] when min is provided.
Parameters
- Optionalmin: number
  lower bound (inclusive)
- Optionalmax: number
  upper bound (inclusive); defaults to 1 when min is provided
Returns number
- Defined in src/math/random.ts:61

randomDouble

randomDouble(min?: number, max?: number): number
Returns a double in [0, 1) with full 53-bit mantissa resolution, or in [min, max] when min is provided.
Parameters
- Optionalmin: number
  lower bound (inclusive)
- Optionalmax: number
  upper bound (inclusive); defaults to 1 when min is provided
Returns number
- Defined in src/math/random.ts:76