用python写一个飞机大战

好的，下面是一个简单的飞机大战游戏的Python实现，希望能够帮助你入门：

import pygame
import random

# 初始化pygame
pygame.init()

# 屏幕尺寸
SCREEN_WIDTH = 480
SCREEN_HEIGHT = 800

# 创建屏幕对象
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))

# 设置标题
pygame.display.set_caption("飞机大战")

# 加载图片
bg_img = pygame.image.load("images/bg.jpg")
hero_img = pygame.image.load("images/hero.png")
enemy_img = pygame.image.load("images/enemy.png")
bullet_img = pygame.image.load("images/bullet.png")

# 设置背景音乐
pygame.mixer.music.load("sounds/game_music.ogg")
pygame.mixer.music.set_volume(0.5)
pygame.mixer.music.play(-1)

# 设置游戏音效
bullet_sound = pygame.mixer.Sound("sounds/bullet.wav")
bullet_sound.set_volume(0.5)
enemy_down_sound = pygame.mixer.Sound("sounds/enemy_down.wav")
enemy_down_sound.set_volume(0.5)
game_over_sound = pygame.mixer.Sound("sounds/game_over.wav")
game_over_sound.set_volume(0.5)

# 设置字体
font = pygame.font.Font(None, 36)

# 定义游戏状态常量
GAME_READY = 0
GAME_PLAYING = 1
GAME_OVER = 2

# 定义游戏状态变量
game_state = GAME_READY

# 定义英雄飞机类
class Hero(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = hero_img
        self.rect = self.image.get_rect()
        self.rect.centerx = SCREEN_WIDTH // 2
        self.rect.bottom = SCREEN_HEIGHT - 20
        self.speed = 6
        self.bullets = pygame.sprite.Group()

    def update(self):
        key_pressed = pygame.key.get_pressed()
        if key_pressed[pygame.K_LEFT]:
            self.rect.x -= self.speed
            if self.rect.left < 0:
                self.rect.left = 0
        elif key_pressed[pygame.K_RIGHT]:
            self.rect.x += self.speed
            if self.rect.right > SCREEN_WIDTH:
                self.rect.right = SCREEN_WIDTH

    def fire(self):
        bullet = Bullet()
        bullet.rect.centerx = self.rect.centerx
        bullet.rect.bottom = self.rect.top
        self.bullets.add(bullet)

# 定义敌机类
class Enemy(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = enemy_img
        self.rect = self.image.get_rect()
        self.rect.x = random.randint(0, SCREEN_WIDTH - self.rect.width)
        self.rect.y = random.randint(-self.rect.height, -10)
        self.speed = random.randint(2, 6)

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

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

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

# 创建英雄飞机对象
hero = Hero()

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

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

# 创建敌机生成事件
ENEMY_EVENT = pygame.USEREVENT + 1
pygame.time.set_timer(ENEMY_EVENT, 1000)

# 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_SPACE:
                if game_state == GAME_PLAYING:
                    hero.fire()
        elif event.type == ENEMY_EVENT:
            if game_state == GAME_PLAYING:
                enemy = Enemy()
                enemies.add(enemy)

    # 绘制背景
    screen.blit(bg_img, (0, 0))

    # 绘制英雄飞机
    if game_state == GAME_PLAYING:
        hero.update()
        bullets.update()
        enemies.update()
        screen.blit(hero.image, hero.rect)
        bullets.draw(screen)
        enemies.draw(screen)

        # 碰撞检测
        for enemy in pygame.sprite.spritecollide(hero, enemies, True):
            game_state = GAME_OVER
            game_over_sound.play()

        for bullet in pygame.sprite.groupcollide(bullets, enemies, True, True):
            enemy_down_sound.play()

        # 显示得分
        score_text = font.render("得分：%d" % len(enemies), True, (255, 255, 255))
        screen.blit(score_text, (10, 10))

    # 绘制游戏准备提示
    elif game_state == GAME_READY:
        ready_text = font.render("按任意键开始游戏", True, (255, 255, 255))
        screen.blit(ready_text, (SCREEN_WIDTH // 2 - ready_text.get_width() // 2, SCREEN_HEIGHT // 2 - ready_text.get_height() // 2))

    # 绘制游戏结束提示
    elif game_state == GAME_OVER:
        over_text = font.render("游戏结束，得分：%d" % len(enemies), True, (255, 255, 255))
        screen.blit(over_text, (SCREEN_WIDTH // 2 - over_text.get_width() // 2, SCREEN_HEIGHT // 2 - over_text.get_height() // 2))

    # 更新屏幕
    pygame.display.update()

    # 设置帧率
    pygame.time.Clock().tick(60)

这个代码实现的是一个简单的飞机大战游戏，包括英雄飞机、敌机、子弹等元素，并且有游戏准备、游戏进行、游戏结束等状态。你可以根据自己的需要进行修改和扩展。