1 #A bouncing ball

 2

 3 import sys, pygame

 4

 5 __author__ = {'name' : 'Hongten',

 6               'mail' : 'hongtenzone@foxmail.com',

 7               'blog' : 'http://www.cnblogs.com/hongten',

 8               'QQ'   : '648719819',

 9               'Version' : '1.0'}

10

11 pygame.init()

12

13 size = width, height = 600, 500

14 speed = [1, 1]

15 black = 249, 130, 57

16

17 screen = pygame.display.set_mode(size)

18

19 ball = pygame.image.load('c:\\test\\ball.gif')

20 ballrect = ball.get_rect()

21

22 while 1:

23     for event in pygame.event.get():

24         if event.type == pygame.QUIT:

25             sys.exit()

26

27     ballrect = ballrect.move(speed)

28     if ballrect.left < 0 or ballrect.right > width:

29         speed[0] = -speed[0]

30     if ballrect.top < 0 or ballrect.bottom > height:

31         speed[1] = - speed[1]

32

33     screen.fill(black)

34     screen.blit(ball, ballrect)

35     pygame.display.flip()