请用Python帮我编写一个坦克大战窗体小游戏

好的，以下是一个简单的坦克大战窗体小游戏的代码，采用 Pygame 库实现：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 窗口大小
WINDOW_WIDTH = 600
WINDOW_HEIGHT = 600

# 坦克大小
TANK_WIDTH = 50
TANK_HEIGHT = 50

# 子弹大小
BULLET_WIDTH = 10
BULLET_HEIGHT = 10

# 颜色定义
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)

# 创建窗口
window = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
pygame.display.set_caption("坦克大战")

# 加载图片
tank_img = pygame.image.load("tank.png")
bullet_img = pygame.image.load("bullet.png")

# 创建坦克类
class Tank:
    def __init__(self, x, y, speed):
        self.x = x
        self.y = y
        self.speed = speed
        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

    def draw(self):
        if self.direction == "up":
            tank_img_rotate = pygame.transform.rotate(tank_img, 0)
        elif self.direction == "down":
            tank_img_rotate = pygame.transform.rotate(tank_img, 180)
        elif self.direction == "left":
            tank_img_rotate = pygame.transform.rotate(tank_img, 90)
        elif self.direction == "right":
            tank_img_rotate = pygame.transform.rotate(tank_img, 270)

        window.blit(tank_img_rotate, (self.x, self.y))

    def fire(self):
        if self.direction == "up":
            bullet = Bullet(self.x + TANK_WIDTH / 2 - BULLET_WIDTH / 2, self.y, self.direction)
        elif self.direction == "down":
            bullet = Bullet(self.x + TANK_WIDTH / 2 - BULLET_WIDTH / 2, self.y + TANK_HEIGHT - BULLET_HEIGHT, self.direction)
        elif self.direction == "left":
            bullet = Bullet(self.x, self.y + TANK_HEIGHT / 2 - BULLET_HEIGHT / 2, self.direction)
        elif self.direction == "right":
            bullet = Bullet(self.x + TANK_WIDTH - BULLET_WIDTH, self.y + TANK_HEIGHT / 2 - BULLET_HEIGHT / 2, self.direction)

        bullets.append(bullet)

# 创建子弹类
class Bullet:
    def __init__(self, x, y, direction):
        self.x = x
        self.y = y
        self.speed = 10
        self.direction = direction

    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

    def draw(self):
        window.blit(bullet_img, (self.x, self.y))

# 创建敌方坦克
enemy_tank = Tank(random.randint(0, WINDOW_WIDTH - TANK_WIDTH), 0, 5)

# 创建玩家坦克
player_tank = Tank(WINDOW_WIDTH / 2 - TANK_WIDTH / 2, WINDOW_HEIGHT - TANK_HEIGHT, 5)

# 子弹列表
bullets = []

# 游戏循环
while True:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_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:
                player_tank.fire()

    # 移动坦克
    player_tank.move()
    enemy_tank.move()

    # 移动子弹
    for bullet in bullets:
        bullet.move()

    # 绘制背景
    window.fill(WHITE)

    # 绘制坦克和子弹
    player_tank.draw()
    enemy_tank.draw()
    for bullet in bullets:
        bullet.draw()

    # 判断是否击中敌方坦克
    for bullet in bullets:
        if bullet.x >= enemy_tank.x and bullet.x <= enemy_tank.x + TANK_WIDTH \
            and bullet.y >= enemy_tank.y and bullet.y <= enemy_tank.y + TANK_HEIGHT:
            enemy_tank = Tank(random.randint(0, WINDOW_WIDTH - TANK_WIDTH), 0, 5)
            bullets.remove(bullet)

    # 刷新窗口
    pygame.display.update()

在代码中，我们创建了一个 `Tank` 类和一个 `Bullet` 类，分别表示坦克和子弹。我们创建了一个敌方坦克和一个玩家坦克，并且可以用键盘控制玩家坦克的移动和发射子弹。子弹会一直向前移动，直到撞到墙壁或敌方坦克。如果撞到敌方坦克，敌方坦克会重新生成在窗口的顶部。祝您玩得愉快！