[已解决]python86讲碰撞检测

gaowei1

大佬求解，为什么我照着视频敲的代码，碰撞检测时只有一个小球在动，其他4个都在原地鬼畜啊

1. 
   
2. import pygame
   
3. import sys
   
4. from pygame.locals import *
   
5. from random import *
   
6. 
   
7. class Ball(pygame.sprite.Sprite):
   
8.     def __init__(self,image,position,speed,bg_size):
   
9.         super().__init__()
   
10.         self.image = pygame.image.load(image).convert_alpha()
    
11.         self.rect  = self.image.get_rect()
    
12.         self.rect.left ,self.rect.top = position
    
13.         self.speed = speed
    
14.         self.width,self.height = bg_size
    
15.         self.radius = self.rect.width / 2
    
16. 
    
17.     def move(self):
    
18.         self.rect = self.rect.move(self.speed)
    
19. 
    
20.         if self.rect.right < 0:
    
21.             self.rect.left = self.width
    
22. 
    
23.         elif self.rect.left > self.width:
    
24.             self.rect.right = 0
    
25. 
    
26.         elif self.rect.bottom < 0:
    
27.             self.rect.top = self.height
    
28. 
    
29.         elif self.rect.top > self.height:
    
30.             self.rect.bottom = 0
    
31. 
    
32. 
    
33. 
    
34. def main():
    
35.     pygame.init()
    
36.     ball_image = '1.png'
    
37.     bg_imagre = '2.png'
    
38. 
    
39.     running = True
    
40.     bg_size = width,height = 1024,681
    
41.     screen = pygame.display.set_mode(bg_size)
    
42.     pygame.display.set_caption('play the ball')
    
43.     background = pygame.image.load(bg_imagre).convert_alpha()
    
44. 
    
45.     balls = []
    
46.     group = pygame.sprite.Group()
    
47. 
    
48.     for i in range(5):
    
49.         position = randint(0,width-100),randint(0,height-100)
    
50.         speed = [randint(-10,10),randint(-10,10)]
    
51.         ball = Ball(ball_image,position,speed,bg_size)
    
52.         #检测球生成时是否发生碰撞
    
53.         while pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):
    
54.             ball.rect.left,ball.rect.top = randint(0,width-100),randint(0,height-100)
    
55.         balls.append(ball)
    
56.         group.add(ball)
    
57. 
    
58.     clock = pygame.time.Clock()
    
59. 
    
60.     while True:
    
61.         for event in pygame.event.get():
    
62.             if event.type == QUIT:
    
63.                 sys.exit()
    
64. 
    
65. 
    
66.         screen.blit(background,(0,0))
    
67. 
    
68.         for each in balls:
    
69.             each.move()
    
70.             screen.blit(each.image,each.rect)
    
71. 
    
72.         for each in group:
    
73.             group.remove(each)
    
74.             if pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):
    
75.                 each.speed[0] = - each.speed[0]
    
76.                 each.speed[1] = - each.speed[1]
    
77. 
    
78.             group.add(each)
    
79. 
    
80.         pygame.display.flip()
    
81.         clock.tick(30)
    
82. 
    
83. if __name__ == '__main__':
    
84.     main()
    

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最佳答案

月排行榜 / 总排行榜

小伤口

2020-12-30 15:44:37

第74行应该改为each

1. if pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):

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1. if pygame.sprite.spritecollide(each,group,False,pygame.sprite.collide_circle):

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小伤口

第74行应该改为each

1. if pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):

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1. if pygame.sprite.spritecollide(each,group,False,pygame.sprite.collide_circle):

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