给我写一个有敌人的python吃豆人小游戏

好的，以下是一个简单的Python吃豆人小游戏，有敌人：

import pygame
import random

# 初始化 pygame
pygame.init()

# 游戏窗口大小
window_size = (800, 600)

# 颜色定义
white = (255, 255, 255)
black = (0, 0, 0)
yellow = (255, 255, 0)
red = (255, 0, 0)
blue = (0, 0, 255)

# 创建游戏窗口
game_display = pygame.display.set_mode(window_size)
pygame.display.set_caption('Python吃豆人小游戏')

# 加载资源
player_img = pygame.image.load('player.png')
enemy_img = pygame.image.load('enemy.png')
bean_img = pygame.image.load('bean.png')
game_icon = pygame.image.load('game_icon.png')
pygame.display.set_icon(game_icon)

# 定义游戏字体
font = pygame.font.SysFont(None, 25)

# 定义计分板
def score(score):
    score_text = font.render("Score: "+str(score), True, white)
    game_display.blit(score_text, [0,0])

# 定义游戏主循环
def game_loop():

    # 初始化游戏状态
    game_exit = False
    game_over = False

    # 定义玩家和敌人初始位置
    player_x = window_size[0] / 2
    player_y = window_size[1] / 2
    enemy_x = random.randrange(0, window_size[0])
    enemy_y = random.randrange(0, window_size[1])

    # 定义玩家和敌人初始速度
    player_speed = 5
    enemy_speed = 3

    # 定义豆子数量和每个豆子的初始位置
    bean_count = 25
    bean_list = []
    for i in range(bean_count):
        bean_x = random.randrange(0, window_size[0])
        bean_y = random.randrange(0, window_size[1])
        bean_list.append([bean_x, bean_y])

    # 定义分数
    score_count = 0

    # 游戏主循环
    while not game_exit:

        # 游戏结束后等待用户操作
        while game_over == True:
            game_display.fill(black)
            game_over_text = font.render("Game Over! Press Q to Quit or C to Continue", True, white)
            game_display.blit(game_over_text, [window_size[0]/2-150, window_size[1]/2])
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_exit = True
                        game_over = False
                    elif event.key == pygame.K_c:
                        game_loop()

        # 处理事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_exit = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    player_x -= player_speed
                elif event.key == pygame.K_RIGHT:
                    player_x += player_speed
                elif event.key == pygame.K_UP:
                    player_y -= player_speed
                elif event.key == pygame.K_DOWN:
                    player_y += player_speed

        # 移动玩家和敌人
        player_rect = game_display.blit(player_img, [player_x, player_y])
        enemy_rect = game_display.blit(enemy_img, [enemy_x, enemy_y])
        enemy_x += enemy_speed
        if enemy_x > window_size[0]:
            enemy_x = 0 - enemy_img.get_width()
            enemy_y = random.randrange(0, window_size[1])

        # 玩家和敌人碰撞检测
        if player_rect.colliderect(enemy_rect):
            game_over = True

        # 显示豆子并检测是否被吃掉
        for bean in bean_list:
            bean_rect = game_display.blit(bean_img, bean)
            if player_rect.colliderect(bean_rect):
                bean_list.remove(bean)
                score_count += 1

        # 显示分数
        score(score_count)

        # 更新画面
        pygame.display.update()

    # 退出 pygame
    pygame.quit()
    quit()

# 启动游戏主循环
game_loop()

游戏规则：

- 玩家使用方向键控制吃豆人的移动；
- 敌人会随机移动，如果玩家和敌人碰撞，则游戏结束；
- 场景中有若干个豆子，玩家需要吃掉它们，每吃掉一个豆子得1分；
- 游戏结束后，玩家可以选择退出游戏或重新开始。