Procedural Art
Rock, paper, scissors
This is a cellular automaton where each color represents either rock, paper, or scissors. To calculate the next cell, the neighbors of each cell that would beat that cell in a game of rock, paper, scissors (e.g. paper for rock) are counted. If the number of cells representing that state are above a certain threshold, the cell changes colors to match the winning state. To make the pattern more organic, a random number is added to the number of counted winning cells before it is checked against the threshold.
This sketch is interactive! You can change the winning threshold that determines when a cell changes colors by moving pressing W and S (once you pass 8, it resets to 0). You can also change the range of the random number by pressing A and D (e.g. 2 picks a random number between -2 and 2, once again rolling back to 0 after passing 8).