Cellular automata

Image or text rendering of {2→9}-states cellular automata.

Use here

• GET /cellular_automata/img.php ? s=2 & ...
• GET /cellular_automata/text.php ? s=8 & ...

parameter name	shortcut	defines
states	s	The number of states (2 to 9)
order	o	The order (1 or 2)
width	w	The width in pixels
height	h	The height in pixels
pixel_size	p	A cell size in pixels
rule_number	n	The rule number or random ( {0 → 256} for 2 states, {0 → 134217728} for 3, etc) (try 110 or 73 for 2 states)
random_start	start	The first line is random or a single centered point
color0	bg	The base color
color1	c1	The first color
color2	c2	The second color
color3	c3	The third color, etc

All parameters are optional, default are defined for everything

The App

How to use locally

From the folder, launch php -S localhost:1234 and go to that url. Needs PHP8 (WIP: will run on docker later)

Run tests

php app/tests.php

The code

That was my first personal project as a brand new developer :) The code was therefore very minimalist (if not plain dirty).

I'm occasionaly trying to keep it in shape and adding new features. The only rule is no framework, no external library, as much from scratch as possible.

TODO

• Add more than 2 states
• Make a text automata
• Add 2nd order
• Add docker
• Add tests

Last changes (see all)

[4.2] - 2021-08-23

• New UI

Images

First order

2 states

3 states

5 states

Second order

2 states

5 states

Bonus

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