Tiny LCG utility for seed-based value generation.
npm install tiny-rng
Tiny LCG class for seed-based value generation.
Install
$ npm install tiny-rng --s
javascript
const prng = require('tiny-rng');
`
Usage
javascript
// basic usageconst r = new prng(); // default seed and precision (3)
r.random() // default range (min: 0, max: 1)
> 0.000 - 1.000
const r = new prng(0, 58973); // precision: 0 (returns integer), seed: 58973
const arr = [];
for (let i = 0; i < 10; i++) {
arr.push(r.random(0, 100)); // min: 0, max: 100
}
arr > [ 54, 46, 42, 40, 65, 60, 81, 39, 60, 66 ]
`About
javascript
// constructor params
// @_precision -> number of decimal places (0 = integer)
// @_seed -> starting seed of prng instance
// @_a -> LCG multiplier
// @_c -> LCG increment
// @_modulus LCG modulusconst r = new prng(_precision, _seed, _a, _c, _modulus);
// random() params
// @min -> minimum output
// @max -> maximum output
// @precision -> decimal precision of output
// passing this parameter can be used to override the current precision of the instance without changing it.
let random_value = r.random(min, max, precision);
// setPrecision()
r.setPrecision(2);
``