写一个python坦克大战小游戏

好的，下面是一个简单的Python坦克大战小游戏代码：

import pygame
import random

# 初始化Pygame
pygame.init()

# 创建游戏窗口
window = pygame.display.set_mode((800, 600))
pygame.display.set_caption("坦克大战")

# 加载游戏素材
tank_img = pygame.image.load("tank.png")
bullet_img = pygame.image.load("bullet.png")
enemy_tank_img = pygame.image.load("enemy_tank.png")
explosion_img = pygame.image.load("explosion.png")

# 设置游戏字体
font = pygame.font.SysFont(None, 30)

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

# 定义游戏对象类
class GameObject:
    def __init__(self, x, y, img):
        self.x = x
        self.y = y
        self.img = img
        self.rect = self.img.get_rect()
        self.rect.center = (self.x, self.y)
        
    def draw(self, surface):
        surface.blit(self.img, self.rect)
        
class Tank(GameObject):
    def __init__(self, x, y, img):
        super().__init__(x, y, img)
        self.speed = 5
        self.direction = "up"
        
    def move(self):
        if self.direction == "up":
            self.y -= self.speed
        elif self.direction == "down":
            self.y += self.speed
        elif self.direction == "left":
            self.x -= self.speed
        elif self.direction == "right":
            self.x += self.speed
            
        # 限制坦克移动范围
        if self.x < 0:
            self.x = 0
        elif self.x > 800:
            self.x = 800
        if self.y < 0:
            self.y = 0
        elif self.y > 600:
            self.y = 600
            
        self.rect.center = (self.x, self.y)
        
    def fire(self):
        bullet = Bullet(self.x, self.y, self.direction)
        return bullet
        
class Bullet(GameObject):
    def __init__(self, x, y, direction):
        self.speed = 10
        self.direction = direction
        
        if self.direction == "up":
            img = pygame.transform.rotate(bullet_img, 90)
        elif self.direction == "down":
            img = pygame.transform.rotate(bullet_img, -90)
        elif self.direction == "left":
            img = pygame.transform.rotate(bullet_img, 180)
        elif self.direction == "right":
            img = bullet_img
            
        super().__init__(x, y, img)
        
    def move(self):
        if self.direction == "up":
            self.y -= self.speed
        elif self.direction == "down":
            self.y += self.speed
        elif self.direction == "left":
            self.x -= self.speed
        elif self.direction == "right":
            self.x += self.speed
            
        self.rect.center = (self.x, self.y)
        
class EnemyTank(Tank):
    def __init__(self, x, y, img):
        super().__init__(x, y, img)
        self.speed = 3
        self.direction = random.choice(["up", "down", "left", "right"])
        
    def update(self):
        # 随机改变方向
        if random.randint(0, 100) == 0:
            self.direction = random.choice(["up", "down", "left", "right"])
        
        self.move()

# 定义游戏函数
def game():
    # 创建玩家坦克
    player_tank = Tank(400, 500, tank_img)
    
    # 创建敌方坦克
    enemy_tank = EnemyTank(400, 100, enemy_tank_img)
    enemy_tanks = [enemy_tank]
    
    # 创建子弹列表
    bullets = []
    
    # 定义游戏循环
    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_UP:
                    player_tank.direction = "up"
                elif event.key == pygame.K_DOWN:
                    player_tank.direction = "down"
                elif event.key == pygame.K_LEFT:
                    player_tank.direction = "left"
                elif event.key == pygame.K_RIGHT:
                    player_tank.direction = "right"
                elif event.key == pygame.K_SPACE:
                    bullet = player_tank.fire()
                    bullets.append(bullet)
        
        # 移动玩家坦克
        player_tank.move()
        
        # 移动敌方坦克
        for enemy_tank in enemy_tanks:
            enemy_tank.update()
        
        # 移动子弹
        for bullet in bullets:
            bullet.move()
            
        # 检测子弹是否击中敌方坦克
        for bullet in bullets:
            for enemy_tank in enemy_tanks:
                if bullet.rect.colliderect(enemy_tank.rect):
                    bullets.remove(bullet)
                    enemy_tanks.remove(enemy_tank)
                    explosion = GameObject(enemy_tank.x, enemy_tank.y, explosion_img)
                    explosions.append(explosion)
                    
        # 绘制游戏对象
        window.fill(black)
        player_tank.draw(window)
        for enemy_tank in enemy_tanks:
            enemy_tank.draw(window)
        for bullet in bullets:
            bullet.draw(window)
        for explosion in explosions:
            explosion.draw(window)
        
        # 更新游戏界面
        pygame.display.update()
        
    # 退出Pygame
    pygame.quit()

# 运行游戏函数
game()

这只是一个简单的坦克大战小游戏，你可以根据自己的需要进行修改和扩展。