https://github.com/hikari-no-yume/pico8bot.php

@pico8bot's image generation reimplemented in PHP as a little programming language
https://github.com/hikari-no-yume/pico8bot.php

Last synced: 17 days ago
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@pico8bot's image generation reimplemented in PHP as a little programming language

• Host: GitHub
• URL: https://github.com/hikari-no-yume/pico8bot.php
• Owner: hikari-no-yume
• License: other
• Created: 2016-01-22T18:14:43.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-01-23T19:47:36.000Z (almost 9 years ago)
• Last Synced: 2024-10-31T05:08:07.487Z (2 months ago)
• Language: PHP
• Homepage:
• Size: 265 KB
• Stars: 5
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
pico8bot, in PHP

================

I think [@pico8bot](https://twitter.com/pico8bot) on Twitter is pretty cool. Just for fun, I've reimplemented the image generation algorithm in PHP.

I looked at the original source code to find out how the `%` operator works, the colour palette, the number of frames, how `x` and `y` are set, and the width and height: https://github.com/Objelisks/picobot/blob/master/bot.js

![Screenshot!](https://raw.githubusercontent.com/TazeTSchnitzel/pico8bot.php/master/screenshot.png)

Capabilities

------------

* Full language support:

   * Operators: `+`, `-`, `*`, `/`, `%`

   * Functions: `sin`, `cos`, `abs`, `tan2`, `sqrt`, `floor`, `max`, `min`

   * Variables: `x`, `y`, `t`

* Uses PHP's tokeniser because I'm lazy

* Shunting-yard parser which generates abstract syntax tree

* Two evaluation methods:

   * Naïve recursive evaluator

   * JIT compilation to PHP code

Requirements

------------

PHP >= 7.0

PHP Gd extension

Usage

-----

    $ php pico8bot.php  

Currently doesn't do animation or give a choice of evaluator (it always uses JIT).

e.g.

    $ php picto8bot.php 'sin(2.07*x)*cos(9.76%8.24)*flr(max(y, 2.51))' test.gif