pygame系列_弹力球

 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()