【Pygame 第5课】 游戏中的运动

Myk_cc

在今天内容的基础上增加一行子弹。ps：两行子弹真霸气

1. # !/usr/bin/python
   
2. 
   
3. import pygame
   
4. from sys import exit
   
5. 
   
6. pygame.init()
   
7. screen = pygame.display.set_mode((450, 800), 0, 32)
   
8. pygame.display.set_caption("Hello, World!")
   
9. 
   
10. bullet = pygame.image.load('bullet.png').convert_alpha() #load bullet image
    
11. bullet1 = bullet
    
12. backgroud = pygame.image.load('back.jpg').convert()
    
13. plane = pygame.image.load('plane.png') #load plane image
    
14. 
    
15. bullet_x = 0
    
16. bullet_y = -1
    
17. bullet1_x = 0
    
18. bullet1_y = -1
    
19. running = True
    
20. 
    
21. while running:
    
22.    for event in pygame.event.get():
    
23.         if event.type == pygame.QUIT:
    
24.            pygame.quit()
    
25.            exit()
    
26.   screen.blit(backgroud, (0, 0))
    
27.   x, y = pygame.mouse.get_pos() # get the position of mouse
    
28.    if bullet_y < 0:
    
29.         bullet_x = x - bullet.get_width() / 2 - 23
    
30.       bullet_y = y - bullet.get_height() / 2
    
31.       bullet1_x = x - bullet.get_width() / 2 + 25
    
32.      bullet1_y = y - bullet.get_height() / 2
    
33. else:
    
34.        bullet_y -= 3
    
35.        bullet1_y -= 3
    
36.   plane_x = x - plane.get_width() / 2
    
37. plane_y = y - plane.get_height() / 2
    
38.     screen.blit(bullet, (bullet_x, bullet_y))
    
39.    screen.blit(bullet1, (bullet1_x, bullet1_y))
    
40.     screen.blit(plane, (plane_x, plane_y))
    
41.   pygame.display.update()

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