food = Food(screen) running = True while running: screen.fill((0, 0, 0)) worm.move() worm.draw() food.draw() if worm.crashed: running = False elif worm.x <= 0 or worm.x >= w - 1: running = False elif worm.y <= 0 or worm.y >= h - 1: running = False elif food.check(worm.x, worm.y): score += 1 worm.eat() chomp.play() print "Score: %d" % score food.erase() food = Food(screen) for event in pygame.event.get(): if event.type == pygame.QUIT: running = False elif event.type == pygame.KEYDOWN: