python写一个飞机大战源码

以下是一个简单的飞机大战游戏的 Python 源码：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 设置游戏窗口的大小
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").convert()

# 加载飞机图片
player_img = pygame.image.load("images/player.png").convert_alpha()

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

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

# 设置字体
font = pygame.font.SysFont(None, 48)

# 定义颜色
black = (0, 0, 0)
white = (255, 255, 255)

# 定义玩家飞机类
class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = player_img
        self.rect = self.image.get_rect()
        self.rect.centerx = screen_width // 2
        self.rect.bottom = screen_height - 10
        self.speed = 5
        self.bullets = pygame.sprite.Group()

    def update(self):
        # 移动飞机
        key_pressed = pygame.key.get_pressed()
        if key_pressed[pygame.K_LEFT]:
            self.rect.x -= self.speed
        if key_pressed[pygame.K_RIGHT]:
            self.rect.x += self.speed
        if key_pressed[pygame.K_UP]:
            self.rect.y -= self.speed
        if key_pressed[pygame.K_DOWN]:
            self.rect.y += self.speed

        # 限制飞机的移动范围
        if self.rect.left < 0:
            self.rect.left = 0
        if self.rect.right > screen_width:
            self.rect.right = screen_width
        if self.rect.top < 0:
            self.rect.top = 0
        if self.rect.bottom > screen_height:
            self.rect.bottom = screen_height

        # 发射子弹
        if key_pressed[pygame.K_SPACE]:
            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(-100, -40)
        self.speed = random.randint(1, 3)

    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()

# 创建玩家飞机
player = Player()

# 创建敌机组
enemies = pygame.sprite.Group()

# 创建子弹组
bullets = pygame.sprite.Group()

# 设置帧率
clock = pygame.time.Clock()
FPS = 60

# 游戏循环
running = True
while running:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 更新玩家飞机
    player.update()

    # 更新敌机
    if random.randint(1, 60) == 1:
        enemy = Enemy()
        enemies.add(enemy)
    enemies.update()

    # 更新子弹
    bullets.update()

    # 检测子弹是否击中敌机
    hits = pygame.sprite.groupcollide(bullets, enemies, True, True)

    # 显示得分
    score = len(hits)
    score_text = font.render(str(score), True, white)
    screen.blit(score_text, (10, 10))

    # 绘制游戏界面
    screen.blit(background, (0, 0))
    player.bullets.draw(screen)
    enemies.draw(screen)
    bullets.draw(screen)
    player.draw(screen)
    pygame.display.update()

    # 控制帧率
    clock.tick(FPS)

# 退出 Pygame
pygame.quit()

这个源码实现了一个简单的飞机大战游戏，玩家可以通过键盘控制飞机移动和发射子弹，敌机会从屏幕顶部随机出现并向下移动，玩家需要尽可能地击落敌机来得分。