90

int[] rules ={
1,0,1,1,0,1,1,0};
int gen = 1;
color on = color(255);
color off = color(0);

void setup(){
size(301,301);
frameRate(8);
background(0);
set(width/2,0,on);
}

void draw(){
for(int i =1; i < width-1; i++){
int left = get(i-1, gen-1);
int me = get(i, gen-1);
int right = get(i+1, gen-1);
if(rules(left,me,right)==1){
set(i,gen,on);
}
}
gen++;
if(gen>height-1){
noLoop();
}
}

int rules(color a, color b, color c){
if((a == on) && (b == on) && (c==on)) {
return rules[0];
}
if((a == on) && (b == on) && (c == off)){
return rules[1];
}
if((a == on) && (b == off) && (c == on)){
return rules[2];
}
if((a == on) && (b == off) && (c == off)){
return rules[3];
}
if((a == off) && (b == on) && (c == on)){
return rules[4];
}
if((a == off) && (b == on) && (c == off)){
return rules[5];
}
if((a == off) && (b == off) && (c == on)){
return rules[6];
}
if((a == off) && (b == off) && (c == off)){
return rules[7];
}
return 0;
}