The game of life, right part of the screen is used as a buffer. Use start(size) to start it.
from math import * from kandinsky import * from random import * m=color(0,0,0) v=color(255,255,255) def init(si): for x in range(si): for y in range(si): c=choice((m,v)) set_pixel(x,y,c) set_pixel(x+si,y,c) def loop(si): for x in range(si): for y in range(si): n=0 for i in range(-1,2): for j in range(-1,2): if (j**2)+(i**2)!=0 and x+i<si and y+j<si and x+i>0 and y+j>0: c=get_pixel(x+i,y+j)[0] if c>0: n+=1 c=get_pixel(x,y)[0] if c>0: if n!=3 and n!=2: set_pixel(x+si,y,m) else: if n==3: set_pixel(x+si,y,v) for x in range(si): for y in range(si): set_pixel(x,y,get_pixel(x+si,y)) def start(si): init(si) while 1: loop(si)