初始化Pygame -

游戏效果

蓝色球球跟随鼠标移动
红色爱心随机分布在屏幕上
碰到爱心后得分，爱心重新随机位置
左上角显示当前分数

代码实现

import pygame
import random
pygame.init()
# 游戏常量设置
WIDTH, HEIGHT = 800, 600
SCREEN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("球球刷爱心")
# 颜色定义
WHITE = (255, 255, 255)
BLUE = (0, 128, 255)
PINK = (255, 50, 100)
# 物体大小
BALL_RADIUS = 30
HEART_SIZE = 40
# 字体设置
FONT = pygame.font.SysFont(None, 48)
class Ball:
    """控制球球的类"""
    def __init__(self):
        self.x = WIDTH // 2
        self.y = HEIGHT // 2
        self.radius = BALL_RADIUS
        self.color = BLUE
    def update(self):
        """跟随鼠标更新位置"""
        self.x, self.y = pygame.mouse.get_pos()
        # 防止球球超出屏幕边界
        self.x = max(self.radius, min(self.x, WIDTH - self.radius))
        self.y = max(self.radius, min(self.y, HEIGHT - self.radius))
    def draw(self):
        """绘制球球"""
        pygame.draw.circle(SCREEN, self.color, (self.x, self.y), self.radius)
    def get_collision_rect(self):
        """获取碰撞检测用的矩形"""
        return pygame.Rect(self.x - self.radius, self.y - self.radius, 
                          self.radius*2, self.radius*2)
class Heart:
    """控制爱心的类"""
    def __init__(self):
        self.reset()
        self.size = HEART_SIZE
        self.color = PINK
    def reset(self):
        """随机生成爱心位置"""
        self.x = random.randint(self.size//2, WIDTH - self.size//2)
        self.y = random.randint(self.size//2, HEIGHT - self.size//2)
    def draw(self):
        """绘制爱心形状"""
        points = [
            (self.x, self.y - self.size//4),          # 顶部
            (self.x + self.size//2, self.y + self.size//4),  # 右下方
            (self.x, self.y + self.size//2),          # 底部
            (self.x - self.size//2, self.y + self.size//4)   # 左下方
        ]
        pygame.draw.polygon(SCREEN, self.color, points)
    def get_collision_rect(self):
        """获取碰撞检测用的矩形"""
        return pygame.Rect(
            self.x - self.size//2, 
            self.y - self.size//4, 
            self.size, 
            self.size//2 + self.size//4
        )
def main():
    """游戏主函数"""
    clock = pygame.time.Clock()
    ball = Ball()
    hearts = [Heart() for _ in range(5)]  # 生成5个爱心
    score = 0
    running = True
    while running:
        # 填充背景色
        SCREEN.fill(WHITE)
        # 处理事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
        # 更新球球位置
        ball.update()
        # 碰撞检测与得分
        ball_rect = ball.get_collision_rect()
        for heart in hearts:
            if ball_rect.colliderect(heart.get_collision_rect()):
                score += 1
                heart.reset()
        # 绘制所有元素
        ball.draw()
        for heart in hearts:
            heart.draw()
        # 显示分数
        score_text = FONT.render(f"Score: {score}", True, (0,0,0))
        SCREEN.blit(score_text, (10, 10))
        # 更新屏幕
        pygame.display.flip()
        clock.tick(60)  # 控制帧率
    pygame.quit()
if __name__ == "__main__":
    main()