Randoscando

A simple library for seed based predictable randomness.

The Randoest of the Scandoest

Randoscando follows a generator style setup for its randomness allowing it to describe how to generate a random value, you will be able to map random functions together via map, and manually move randomness forward using step like functions

Install

npm i randoscando

How To

Standard ESM module

import * as random from 'randoscando'
// or
import { int, step } from 'randoscando'

CommonJS

const random = require('randoscando')
// or
const { int, step } = require('randoscando')

CDN

Note: It is highly recommended to replace @latest with a strict version!

<!-- jsdelivr -->
<script src="https://cdn.jsdelivr.net/npm/randoscando@latest/dist/randoscando.iife.min.js"></script>
<!-- unpkg -->
<script src="https://unpkg.com/randoscando@latest/dist/randoscando.iife.min.js"></script>

Usage

The documentation will show you what each random function is capable of doing however in order to sequence these you need to use the step function

Using step allows you to move the randomness and its seed forward

In the example below the response is [90, 0.8986478650476784] where 90 is the random integer generated using the 'abc123' seed, and 0.8986478650476784 is the next seed in the sequence. Float numbers like this will always be the type of seeds returned from randoscando however when you call step, you can give it any kind of String or Number you'd like.

Example

import { step, int } from 'randoscando'

step(int(1, 100), 'abc123') // => [90, 0.8986478650476784]

Using Functions By Themselves

You can for sure use randoscandos functions without using step you just need to treat them as a simple generator

Example

import { int, initialSeed } from 'randoscando'

int(1, 100) // => { value: 100, step: function (seed) {} }

const seed = initialSeed('abc123')
const int = int(1, 100)

int.step(seed) // => [90, 0.8986478650476784]

The main thing step does is advance the randomness forward and help keep track of providing a new seed without the need of you creating a new alea seed everytime

Why?

I built RandoScando to mess around with seed based randomness and the algorithm behind it, just as a fun little project.

As for the name it came from a variable one of my good friends and coworkers used in one of our projects, so that it may live on forever.

Feedback

Please feel free to provide any and all feedback whether it involves better documentation, function ideas, or better ideas of how to handle functionality.