用python写一个飞机大战的小游戏

好的，以下是一个简单的飞机大战小游戏的代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 创建游戏窗口
screen_width = 480
screen_height = 700
screen = pygame.display.set_mode((screen_width, screen_height))

# 设置游戏标题
pygame.display.set_caption("飞机大战")

# 加载背景图片
background = pygame.image.load("images/background.png")

# 加载飞机图片
player_img = pygame.image.load("images/me1.png")
player_rect = player_img.get_rect()
player_width = player_rect.width
player_height = player_rect.height
player_x = (screen_width - player_width) // 2
player_y = screen_height - player_height - 50

# 加载子弹图片
bullet_img = pygame.image.load("images/bullet1.png")
bullet_width = bullet_img.get_width()
bullet_height = bullet_img.get_height()

# 加载敌机图片
enemy_img = pygame.image.load("images/enemy1.png")
enemy_width = enemy_img.get_width()
enemy_height = enemy_img.get_height()

# 加载音效
bullet_sound = pygame.mixer.Sound("sound/bullet.wav")
enemy_down_sound = pygame.mixer.Sound("sound/enemy1_down.wav")
game_over_sound = pygame.mixer.Sound("sound/game_over.wav")

# 设置游戏字体
font = pygame.font.Font(None, 36)

# 设置游戏变量
score = 0
game_over = False
clock = pygame.time.Clock()

# 定义函数：绘制分数
def draw_score():
    score_text = font.render("Score: {}".format(score), True, (255, 255, 255))
    screen.blit(score_text, (10, 10))

# 定义函数：绘制游戏结束
def draw_game_over():
    game_over_text = font.render("Game Over", True, (255, 0, 0))
    screen.blit(game_over_text, ((screen_width - game_over_text.get_width()) // 2, screen_height // 2))

# 定义函数：绘制飞机
def draw_player():
    screen.blit(player_img, (player_x, player_y))

# 定义函数：绘制子弹
def draw_bullets(bullets):
    for bullet in bullets:
        screen.blit(bullet_img, (bullet[0], bullet[1]))

# 定义函数：绘制敌机
def draw_enemies(enemies):
    for enemy in enemies:
        screen.blit(enemy_img, (enemy[0], enemy[1]))

# 定义函数：移动子弹
def move_bullets(bullets):
    for bullet in bullets:
        bullet[1] -= 5

# 定义函数：移动敌机
def move_enemies(enemies):
    for enemy in enemies:
        enemy[1] += 3

# 定义函数：生成敌机
def generate_enemy(enemies):
    enemy_x = random.randint(0, screen_width - enemy_width)
    enemy_y = -enemy_height
    enemies.append([enemy_x, enemy_y])

# 定义函数：判断子弹是否打中敌机
def hit_enemies(bullets, enemies):
    global score
    for bullet in bullets:
        for enemy in enemies:
            if bullet[0] > enemy[0] - bullet_width and bullet[0] < enemy[0] + enemy_width and \
                bullet[1] > enemy[1] - bullet_height and bullet[1] < enemy[1] + enemy_height:
                bullets.remove(bullet)
                enemies.remove(enemy)
                score += 100
                enemy_down_sound.play()

# 定义函数：判断飞机是否与敌机相撞
def crash_player(player_rect, enemies):
    for enemy in enemies:
        if pygame.Rect.colliderect(player_rect, pygame.Rect(enemy[0], enemy[1], enemy_width, enemy_height)):
            return True
    return False

# 创建子弹列表和敌机列表
bullets = []
enemies = []

# 游戏主循环
while True:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()

    # 检测键盘输入
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        player_x -= 5
    if keys[pygame.K_RIGHT]:
        player_x += 5
    if keys[pygame.K_UP]:
        player_y -= 5
    if keys[pygame.K_DOWN]:
        player_y += 5
    if keys[pygame.K_SPACE]:
        bullet_sound.play()
        bullets.append([player_x + player_width // 2 - bullet_width // 2, player_y - bullet_height])

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

    # 绘制分数
    draw_score()

    # 绘制飞机
    draw_player()

    # 移动子弹
    move_bullets(bullets)

    # 绘制子弹
    draw_bullets(bullets)

    # 生成敌机
    if len(enemies) < 5 and not game_over:
        generate_enemy(enemies)

    # 移动敌机
    move_enemies(enemies)

    # 绘制敌机
    draw_enemies(enemies)

    # 判断子弹是否打中敌机
    hit_enemies(bullets, enemies)

    # 判断游戏结束
    if crash_player(player_rect, enemies) and not game_over:
        game_over = True
        game_over_sound.play()

    if game_over:
        draw_game_over()

    # 更新游戏画面
    pygame.display.update()

    # 设置游戏帧率
    clock.tick(60)

请注意，上述代码中使用的图片和音效需要自己准备，可以根据自己的需求进行修改。此外，还需要安装pygame模块，可以使用以下命令进行安装：

pip install pygame

希望对你有所帮助！