On Sun, Mar 3, 2013 at 3:09 PM, Alex Gardner <agardner...@gmail.com> wrote: > if (0,0) <= paddle_pos <= (300,300):
This doesn't do what you think it does. Tuples are compared lexicographically, not element-wise. So (250, 350) < (300, 300), but (350, 250) > (300, 300). > paddle_pos = pygame.mouse.get_pos() > screen.blit(beeper, paddle_pos) > pygame.display.update() > clock.tick(50) You're updating paddle_pos inside the if block. Once paddle_pos falls outside that range, the if block won't trigger, and paddle_pos will no longer be updated, so it will never fall inside that range again. pygame has a Rect class for rectangle logic that can solve both of these problems for you. Given: paddle_rect = beeper.get_rect() bounds_rect = pygame.Rect(0, 0, 300, 300) your position update code then becomes: paddle_rect.center = pygame.mouse.get_pos() paddle_rect.clamp_ip(bounds_rect) Note that paddle_rect can replace paddle_pos entirely. The code: screen.blit(beeper, paddle_pos) simply becomes: screen.blit(beeper, paddle_rect) -- http://mail.python.org/mailman/listinfo/python-list
