python 写一个 雷电游戏的代码

好的，下面是一个简单的 Python 雷电游戏代码，希望能帮到你：

import pygame
import random

# 定义常量
SCREEN_WIDTH = 480
SCREEN_HEIGHT = 800
BULLET_WIDTH = 8
BULLET_HEIGHT = 20
ENEMY_WIDTH = 50
ENEMY_HEIGHT = 50

# 初始化 Pygame
pygame.init()

# 创建游戏窗口
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("雷电游戏")

# 加载背景图片
bg_img = pygame.image.load("bg.jpg").convert_alpha()

# 加载玩家飞机图片
player_img = pygame.image.load("player.png").convert_alpha()
player_rect = player_img.get_rect()
player_rect.centerx = SCREEN_WIDTH // 2
player_rect.bottom = SCREEN_HEIGHT - 20

# 加载子弹图片
bullet_img = pygame.image.load("bullet.png").convert_alpha()

# 加载敌机图片
enemy_img = pygame.image.load("enemy.png").convert_alpha()

# 加载游戏音效
bullet_sound = pygame.mixer.Sound("bullet.wav")
enemy_down_sound = pygame.mixer.Sound("enemy_down.wav")

# 定义子弹类
class Bullet(pygame.sprite.Sprite):
    def __init__(self, x, y):
        pygame.sprite.Sprite.__init__(self)
        self.image = bullet_img
        self.rect = self.image.get_rect()
        self.rect.centerx = x
        self.rect.bottom = y
        self.speed = -10

    def update(self):
        self.rect.top += self.speed
        if self.rect.bottom < 0:
            self.kill()

# 定义敌机类
class Enemy(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = enemy_img
        self.rect = self.image.get_rect()
        self.rect.centerx = random.randint(ENEMY_WIDTH // 2, SCREEN_WIDTH - ENEMY_WIDTH // 2)
        self.rect.bottom = 0
        self.speed = random.randint(3, 5)

    def update(self):
        self.rect.top += self.speed
        if self.rect.top > SCREEN_HEIGHT:
            self.kill()

# 创建玩家飞机精灵组
player_group = pygame.sprite.Group()
player_group.add(pygame.sprite.Sprite())

# 创建子弹精灵组
bullet_group = pygame.sprite.Group()

# 创建敌机精灵组
enemy_group = pygame.sprite.Group()

# 设置游戏时钟
clock = pygame.time.Clock()

# 定义游戏结束函数
def game_over():
    font = pygame.font.SysFont(None, 48)
    text = font.render("Game Over", True, (255, 0, 0))
    text_rect = text.get_rect()
    text_rect.centerx = SCREEN_WIDTH // 2
    text_rect.centery = SCREEN_HEIGHT // 2
    screen.blit(text, text_rect)
    pygame.display.update()
    pygame.time.wait(2000)
    pygame.quit()
    exit()

# 游戏循环
while True:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                pygame.quit()
                exit()
            elif event.key == pygame.K_SPACE:
                bullet_sound.play()
                bullet = Bullet(player_rect.centerx, player_rect.top)
                bullet_group.add(bullet)

    # 处理键盘输入
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        player_rect.left -= 5
        if player_rect.left < 0:
            player_rect.left = 0
    elif keys[pygame.K_RIGHT]:
        player_rect.right += 5
        if player_rect.right > SCREEN_WIDTH:
            player_rect.right = SCREEN_WIDTH
    elif keys[pygame.K_UP]:
        player_rect.top -= 5
        if player_rect.top < 0:
            player_rect.top = 0
    elif keys[pygame.K_DOWN]:
        player_rect.bottom += 5
        if player_rect.bottom > SCREEN_HEIGHT:
            player_rect.bottom = SCREEN_HEIGHT

    # 更新玩家飞机位置
    player_group.sprites()[0].rect = player_rect

    # 更新子弹位置
    bullet_group.update()

    # 更新敌机位置
    enemy_group.update()

    # 检测子弹是否击中敌机
    hits = pygame.sprite.groupcollide(bullet_group, enemy_group, True, True)
    for hit in hits:
        enemy_down_sound.play()
        enemy = Enemy()
        enemy_group.add(enemy)

    # 检测敌机是否撞到玩家飞机
    hits = pygame.sprite.spritecollide(player_group.sprites()[0], enemy_group, True)
    if hits:
        game_over()

    # 绘制游戏元素
    screen.blit(bg_img, (0, 0))
    player_group.draw(screen)
    bullet_group.draw(screen)
    enemy_group.draw(screen)
    pygame.display.update()

    # 控制游戏帧率
    clock.tick(60)