Python中实现乒乓球效果

  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()