Probably nobody remembers, but sometime last year I said I was going to write an implementation of Conway’s life algorithm. Well, I got lazy and distracted then, but I finally got around to it a few days ago. It’s fun! But of course, it’s not finished yet, and probably won’t be much to look at when it is (although there are flashy colours…).
Other fun algorithms include the Gravity Algorithm (or something) which I used a few weeks ago to write a simulation of the solar system. It was going well until graphics got involved, then it turned into an unmanagable mess. No matter, it was only an experiment really.