碰撞检测后停止移动- Pygame

import pygame
from pygame.locals import *

# 初始化Pygame
pygame.init()

# 创建游戏窗口
screen = pygame.display.set_mode((800, 600))
pygame.display.set_caption("碰撞检测示例")

# 定义物体类
class GameObject(pygame.sprite.Sprite):
    def __init__(self, x, y, width, height, color):
        super().__init__()
        self.image = pygame.Surface((width, height))
        self.image.fill(color)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.velocity = [1, 1]  # 物体的速度

    def update(self):
        self.rect.x += self.velocity[0]
        self.rect.y += self.velocity[1]

        # 碰撞检测
        if pygame.sprite.spritecollide(self, all_sprites, False):
            self.velocity = [0, 0]  # 停止移动

# 创建物体对象
obj1 = GameObject(100, 100, 50, 50, (255, 0, 0))
obj2 = GameObject(200, 200, 50, 50, (0, 255, 0))

# 创建精灵组
all_sprites = pygame.sprite.Group()
all_sprites.add(obj1, obj2)

# 游戏循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == QUIT:
            running = False

    # 更新物体状态
    all_sprites.update()

    # 绘制物体
    screen.fill((255, 255, 255))
    all_sprites.draw(screen)
    pygame.display.flip()

# 退出游戏
pygame.quit()