使用Python写一个飞机大战小游戏

好的，以下是一个简单的飞机大战小游戏的Python代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置游戏窗口大小和标题
screen_width = 480
screen_height = 800
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("飞机大战")

# 加载游戏背景图和飞机图
background_image = pygame.image.load("background.png")
player_image = pygame.image.load("player.png")
enemy_image = pygame.image.load("enemy.png")

# 设置游戏字体和分数
font = pygame.font.SysFont("simhei", 20)
score = 0

# 定义敌机类
class Enemy:
    def __init__(self):
        self.x = random.randint(0, screen_width - enemy_image.get_width())
        self.y = -enemy_image.get_height()
        self.speed = random.randint(1, 3)

    def move(self):
        self.y += self.speed

    def draw(self):
        screen.blit(enemy_image, (self.x, self.y))

# 定义玩家类
class Player:
    def __init__(self):
        self.x = (screen_width - player_image.get_width()) / 2
        self.y = screen_height - player_image.get_height()
        self.speed = 5

    def move(self, direction):
        if direction == "left":
            self.x -= self.speed
        elif direction == "right":
            self.x += self.speed

        if self.x < 0:
            self.x = 0
        elif self.x > screen_width - player_image.get_width():
            self.x = screen_width - player_image.get_width()

    def draw(self):
        screen.blit(player_image, (self.x, self.y))

# 创建玩家和敌机对象
player = Player()
enemies = []

# 游戏循环
running = True
while running:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                player.move("left")
            elif event.key == pygame.K_RIGHT:
                player.move("right")

    # 绘制游戏背景和分数
    screen.blit(background_image, (0, 0))
    score_text = font.render("分数：" + str(score), True, (255, 255, 255))
    screen.blit(score_text, (10, 10))

    # 绘制玩家和敌机
    player.draw()
    for enemy in enemies:
        enemy.move()
        enemy.draw()

        # 判断敌机是否与玩家碰撞
        if enemy.y + enemy_image.get_height() > player.y and \
           enemy.y < player.y + player_image.get_height() and \
           enemy.x + enemy_image.get_width() > player.x and \
           enemy.x < player.x + player_image.get_width():
            running = False

        # 判断敌机是否超出屏幕
        if enemy.y > screen_height:
            score += 10
            enemies.remove(enemy)

    # 随机生成敌机
    if random.randint(1, 50) == 1:
        enemies.append(Enemy())

    # 刷新屏幕
    pygame.display.update()

# 结束游戏并退出pygame
pygame.quit()

你需要准备三张图片（分别为游戏背景、玩家飞机和敌机），并将它们命名为 `background.png`、`player.png` 和 `enemy.png`，放在同一目录下。这个游戏实现了玩家控制飞机移动、敌机随机生成、敌机移动和超出屏幕时消失、敌机与玩家碰撞时游戏结束、分数统计等功能。你可以根据自己的需求进行修改和扩展。