Someone mentioned the other day that they'd never done a rotating cube in any programming language, and to encourage them, I spent half an hour writing the simplest rotating cube demo I could think of. People seem to like it! The code, that is. The visuals are a bit dull.

#!/usr/bin/python "Very simple rotating cube in ASCII art." import sys, time w, h, out = 80, 24, sys.stdout cube = [(x, y, z) for x in -1, 1 for y in -1, 1 for z in -1, 1] s = 0.1 # sine c = (1 - s**2)**0.5 # cosine ym = h/3 # Y magnification xm = 2*ym # X magnification while True: cube = [(c*x + s*z, y, -s*x + c*z) for x, y, z in cube] # Rotate by theta. proj = [(round(w/2+xm*x/(z+2)), round(h/2+ym*y/(z+2))) for x, y, z in cube] out.write('\033[H' + '\n'.join( ''.join(('*' if (x, y) in proj else ' ') for x in range(w)) for y in range(h))) out.flush() time.sleep(1/15.0) -- To unsubscribe: http://lists.canonical.org/mailman/listinfo/kragen-hacks