[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

import pygame
import sys
from pygame.locals import *
from random import *

class Ball(pygame.sprite.Sprite):
    def __init__(self,image,position,speed,bg_size):
        super().__init__()
        self.image = pygame.image.load(image).convert_alpha()
        self.rect  = self.image.get_rect()
        self.rect.left ,self.rect.top = position
        self.speed = speed
        self.width,self.height = bg_size
        self.radius = self.rect.width / 2

    def move(self):
        self.rect = self.rect.move(self.speed)

        if self.rect.right < 0:
            self.rect.left = self.width

        elif self.rect.left > self.width:
            self.rect.right = 0

        elif self.rect.bottom < 0:
            self.rect.top = self.height

        elif self.rect.top > self.height:
            self.rect.bottom = 0



def main():
    pygame.init()
    ball_image = '1.png'
    bg_imagre = '2.png'

    running = True
    bg_size = width,height = 1024,681
    screen = pygame.display.set_mode(bg_size)
    pygame.display.set_caption('play the ball')
    background = pygame.image.load(bg_imagre).convert_alpha()

    balls = []
    group = pygame.sprite.Group()

    for i in range(5):
        position = randint(0,width-100),randint(0,height-100)
        speed = [randint(-10,10),randint(-10,10)]
        ball = Ball(ball_image,position,speed,bg_size)
        #检测球生成时是否发生碰撞
        while pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):
            ball.rect.left,ball.rect.top = randint(0,width-100),randint(0,height-100)
        balls.append(ball)
        group.add(ball)

    clock = pygame.time.Clock()

    while True:
        for event in pygame.event.get():
            if event.type == QUIT:
                sys.exit()


        screen.blit(background,(0,0))

        for each in balls:
            each.move()
            screen.blit(each.image,each.rect)

        for each in group:
            group.remove(each)
            if pygame.sprite.spritecollide(ball,group,False,pygame.sprite.collide_circle):
                each.speed[0] = - each.speed[0]
                each.speed[1] = - each.speed[1]

            group.add(each)

        pygame.display.flip()
        clock.tick(30)

if __name__ == '__main__':
    main()

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

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

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

跳转到最佳答案楼层

小伤口

第74行应该改为each

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

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