https://github.com/wout/prng.onchain.js

A micro JS implementation of the Mulberry32 seedable pseudorandom number generator.
https://github.com/wout/prng.onchain.js

blockchain javascript microjs mulberry32 onchain prng prng-algorithms random

Last synced: 13 days ago
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A micro JS implementation of the Mulberry32 seedable pseudorandom number generator.

• Host: GitHub
• URL: https://github.com/wout/prng.onchain.js
• Owner: wout
• License: mit
• Created: 2022-06-10T08:41:54.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-06-12T07:37:50.000Z (over 2 years ago)
• Last Synced: 2024-11-02T07:06:10.529Z (2 months ago)
• Topics: blockchain, javascript, microjs, mulberry32, onchain, prng, prng-algorithms, random
• Language: JavaScript
• Homepage:
• Size: 2.93 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# prng.onchain.js

A micro JS implementation (112 bytes) of the Mulberry32 pseudorandom number

generator.

This library is intended for use in environments where the available storage

space is very limited; like blockchains for example. Everything is stripped down

to the bare essentials.

![GitHub tag (latest SemVer)](https://img.shields.io/github/v/tag/onchainjs/prng.onchain.js)

## Usage

```js

// Initialize a random generator for a given seed value

let rand = Pr.ng(1234)

rand()

// => 0.07329497812315822

rand()

// => 0.7034119898453355

rand()

// => 0.9028560190927237

// Re-initialize to start the same sequence again using the same seed value

rand = Pr.ng(1234)

rand()

// => 0.07329497812315822

rand()

// => 0.7034119898453355

rand()

// => 0.9028560190927237

```

## Acknowledgements

This implementation is borrowed from

[here](https://github.com/bryc/code/blob/master/jshash/PRNGs.md) and

[here](https://gist.github.com/blixt/f17b47c62508be59987b).

## License

prng.onchain.js is licensed under the terms of the MIT License.