@ohae/prng-xx-hash

This package implements a PRNG (pseudo random number generator) based on the xx_hash algorithm

It ensures repeatability of the generation result when using the same input data. This gives wide opportunities for its use in game development. For example, to ensure the generation of identical maps on the client side. To do this, you only need to provide clients with identical seeds.

Installation

npm install @ohae/prng-xx-hash --save

Usage

javascript commonjs modules

const { XXHash } = require('@ohae/prng-xx-hash');

const seed = 1234567;
const prng = new XXHash(seed);

console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(4, 5, 6));	// 0.7994929356033664
console.log(prng.random(4, 5, 6));	// 0.7994929356033664

javascript es modules

import { XXHash } from '@ohae/prng-xx-hash';
const seed = 1234567;
const prng = new XXHash(seed);

console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(4, 5, 6));	// 0.7994929356033664
console.log(prng.random(4, 5, 6));	// 0.7994929356033664

typecript

import { XXHash } from '@ohae/prng-xx-hash';
const seed: number = 1234567;
const prng: XXHash = new XXHash(seed);

console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(1));	// 0.25214675354122806
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(2, 3));	// 0.5936155299641228
console.log(prng.random(4, 5, 6));	// 0.7994929356033664
console.log(prng.random(4, 5, 6));	// 0.7994929356033664

License

MIT