This is a port of Daniel Shiffman's Reaction Diffusion coded in P5 (JavaScript): https://github.com/CodingTrain/Rainbow-Code/blob/master/CodingChallenges/CC_13_ReactionDiffusion_p5.js/sketch.js
Runs on my laptop at about 2-3 seconds per frame, so it takes an hour or more to get going. You can tweak the feed rate (FEED) and kill rate (K) to get radically different emergent patterns.
I may try to optimize it further (believe it or not, I have done some speedups to get it here) and maybe add a menu with some interesting pre-sets, but it is working, albeit very slowly.
Reaction Diffusion is similar to cellular automata like the Game of Life, but can create really amazing organic emergent patterns over time.
Brought it from around 3 seconds per frame to about a second per frame (on my machine) and added a menu for loading different preset values for FEED and K.
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