用Python写一个乒乓球类的游戏

最近开始学Python，感觉挺好玩的，既有脚本语言的灵活性，又有丰富的类库与面向对象的特点，开发起来很方便。





游戏的规则和乒乓球一样，如果妙蛙种子掉地上了就算输，你可以用蓝色的跷跷板弹它，使他不落到地面上。

Game Over后可按任意键继续游戏或选择退出。

代码如下：

1 import sys, pygame
2 from random import *
3 from pygame.locals import *
4 from pygame.font import *
5 class MyPlayer(pygame.sprite.Sprite):
6     def __init__(self, image_file, location, speed):
7         pygame.sprite.Sprite.__init__(self)
8         self.image = pygame.image.load(image_file)
9         self.rect = self.image.get_rect()
10         self.rect.left, self.rect.top = location
11         self.speed = speed
12         self.status = True
13     def move(self):
14         self.rect = self.rect.move(self.speed)
15         if self.rect.left < 0 or self.rect.right > width:
16             self.speed[0] = -self.speed[0]
17         if self.rect.top < 0:
18             self.speed[1] = -self.speed[1]
19         if self.rect.bottom > height:
20             #Game over
21             self.status = False
22 class Reflector(pygame.sprite.Sprite):
23     def __init__(self, image_file, location, speed):
24         pygame.sprite.Sprite.__init__(self)
25         self.image = pygame.image.load(image_file)
26         self.rect = self.image.get_rect()
27         self.rect.left, self.rect.top = location
28         self.speed = speed
29     def move(self):
30         self.rect = self.rect.move(self.speed)
31         if self.rect.left < 0 or self.rect.right > width:
32             self.speed[0] = -self.speed[0]
33         if self.rect.top < 0 or self.rect.bottom > height:
34             self.speed[1] = -self.speed[1]
35 def animate(players):
36     screen.fill([255,255,255])
37     for player in players:
38         player.move()
39     for player in players:
40         players.remove(player)
41         if pygame.sprite.spritecollide(player,players,False):
42             player.speed[0] = -player.speed[0]
43             player.speed[1] = -player.speed[1]
44         players.add(player)
45         player.move()
46         screen.blit(player.image,player.rect)
47     pygame.display.flip()
48     pygame.time.delay(10)
49
50 pygame.init()
51 size = width,height = 640,480
52 screen = pygame.display.set_mode(size)
53 screen.fill([255,255,255])
54 pygame.display.set_caption("MiaoWa Game")
55 def play():
56     img_player = "C:\Users\dswu\Desktop\player.png"
57     players = pygame.sprite.Group()
58     for row in range(0,1):
59         for column in range(0,1):
60             playerLocation = [column*250+10,row*250+10]
61             playerSpeed = [choice([-2,2]), choice([-2,2])]
62             player = MyPlayer(img_player, playerLocation, playerSpeed)
63             players.add(player)
64     img_ref_path = "C:\Users\dswu\Desktop\Reflector.png"
65     ref_pos = [0,464]
66     ref_speed = [0,0]
67     reflector = Reflector(img_ref_path, ref_pos, ref_speed)
68     players.add(reflector)
69     running = True
70     while running:
71         key_pressed = pygame.key.get_pressed()
72         for event in pygame.event.get():
73             if event.type == pygame.QUIT:
74                 game.quit()
75             if event.type == KEYDOWN:
76                 if event.key == K_LEFT:
77                     ref_speed[0] = -2
78                 elif event.key == K_RIGHT:
79                     ref_speed[0] = +2
80         animate(players)
81         if player.status == False:
82             running = False
83     final_text = "Game Over!"
84     ft_font = pygame.font.Font(None, 100)
85     ft_surf = ft_font.render(final_text, 1, (0,0,0))
86     screen.blit(ft_surf, [screen.get_width()/2 - ft_surf.get_width()/2, 100])
87     tip_text = "Type any key to continue"
88     tip_font = pygame.font.Font(None, 50)
89     tip_surf = tip_font.render(tip_text, 1, (0,0,0))
90     screen.blit(tip_surf, [screen.get_width()/2 - tip_surf.get_width()/2, 200])
91     pygame.display.flip()
92     keepOn = True
93     while keepOn:
94         key_pressed = pygame.key.get_pressed()
95         for event in pygame.event.get():
96             if event.type == pygame.QUIT:
97                 pygame.quit()
98             if event.type == KEYDOWN:
99                 play()
100 play()

主要是通过pygame.sprite.Sprite类实现碰撞的监控，通过事件的捕捉及判断实现这种弹力球类的游戏，其中涉及到文字在界面上的显示，游戏中的循环控制，以及重新开始游戏等。

把上面这段代码贴到你的IDLE中，找到下面这两行替换成你机器中的图片路径，按F5就可以运行了。

img_player = "C:\Users\dswu\Desktop\player.png"

img_ref_path = "C:\Users\dswu\Desktop\Reflector.png"