So i was bored and remembered that i've never programmed a cellular automata (As they're apparently called) so i made one. I am happy with how short and fast (on my computer, running it fullscreen - 1920*1080) i managed to make the program so i thought i'd post it:

1. int[] rules = {0,1,0,0,1,0,1,0};
2. void setup(){
3.   size(screenWidth,screenHeight);
4.   background(255);
5.   loadPixels();
6.   pixels[width/2] = color(0);
7.   reset();
8. }
9. void draw(){
10.   for(int y = 1;y<height;y++){
11.     for(int i = 1;i< width-1;i++){
12.       pixels[y*width+i] = color(255*rules[((((0xff&pixels[(y-1)*width+i-1])/255<<1)+(0xff&pixels[(y-1)*width+i])/255)<<1)+(0xff&pixels[(y-1)*width+i+1])/255]);
13.     }
14.   }
15.   updatePixels();
16.   noLoop();
17. }
18. void reset(){
19.   for(int i = 0;i<rules.length;i++){
20.     rules[i] = round(random(1));
21.   }
22. }
23. void mouseReleased(){
24.   loop();
25.   reset();
26. }

so what do you guys think? can it be done any shorter? :)