使用python写一个复杂版的贪吃蛇

好的，我可以为您提供一个基于Python的复杂版贪吃蛇的代码，以下是代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置屏幕尺寸和字体
screen_width = 480
screen_height = 480
font = pygame.font.SysFont('Arial', 25)

# 创建屏幕对象
screen = pygame.display.set_mode((screen_width, screen_height))

# 设置窗口标题
pygame.display.set_caption('贪吃蛇')

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

# 设置每个方块的大小
block_size = 20

# 加载图片
head_img = pygame.image.load('head.png')
tail_img = pygame.image.load('tail.png')
apple_img = pygame.image.load('apple.png')

# 定义贪吃蛇类
class Snake:
    def __init__(self):
        self.body = [(screen_width/2, screen_height/2)]
        self.direction = 'right'
        self.score = 0
        self.add_block = False

    def move(self):
        # 获取头部位置
        x, y = self.body[0]

        # 根据方向移动头部
        if self.direction == 'up':
            y -= block_size
        elif self.direction == 'down':
            y += block_size
        elif self.direction == 'left':
            x -= block_size
        elif self.direction == 'right':
            x += block_size

        # 添加头部
        self.body.insert(0, (x, y))

        # 如果需要添加身体块，则不删除尾部
        if not self.add_block:
            self.body.pop()
        else:
            self.score += 1
            self.add_block = False

    def draw(self):
        # 绘制蛇头
        x, y = self.body[0]
        screen.blit(head_img, (x, y))

        # 绘制蛇身体
        for i, (x, y) in enumerate(self.body[1:-1]):
            prev_x, prev_y = self.body[i]
            next_x, next_y = self.body[i+2]

            if prev_y == next_y:
                screen.blit(tail_img, (x, y))
            elif prev_x == next_x:
                screen.blit(pygame.transform.rotate(tail_img, 90), (x, y))

        # 绘制蛇尾
        x, y = self.body[-1]
        prev_x, prev_y = self.body[-2]

        if prev_y == y:
            screen.blit(tail_img, (x, y))
        elif prev_x == x:
            screen.blit(pygame.transform.rotate(tail_img, 90), (x, y))

    def eat_apple(self, apple_pos):
        if self.body[0] == apple_pos:
            self.add_block = True
            return True

        return False

    def collide_with_wall(self):
        x, y = self.body[0]

        if x < 0 or x > screen_width - block_size or y < 0 or y > screen_height - block_size:
            return True

        return False

    def collide_with_self(self):
        for i, (x, y) in enumerate(self.body):
            if (x, y) in self.body[i+1:]:
                return True

        return False

# 定义苹果类
class Apple:
    def __init__(self):
        self.pos = self.random_pos()

    def draw(self):
        x, y = self.pos
        screen.blit(apple_img, (x, y))

    def random_pos(self):
        x = random.randrange(0, screen_width-block_size, block_size)
        y = random.randrange(0, screen_height-block_size, block_size)

        return (x, y)

# 初始化贪吃蛇和苹果
snake = Snake()
apple = Apple()

# 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
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP and snake.direction != 'down':
                snake.direction = 'up'
            elif event.key == pygame.K_DOWN and snake.direction != 'up':
                snake.direction = 'down'
            elif event.key == pygame.K_LEFT and snake.direction != 'right':
                snake.direction = 'left'
            elif event.key == pygame.K_RIGHT and snake.direction != 'left':
                snake.direction = 'right'

    # 移动贪吃蛇
    snake.move()

    # 碰撞检测
    if snake.eat_apple(apple.pos):
        apple.pos = apple.random_pos()

    if snake.collide_with_wall() or snake.collide_with_self():
        running = False

    # 绘制屏幕
    screen.fill(white)
    snake.draw()
    apple.draw()

    # 显示分数
    score = font.render('Score: {}'.format(snake.score), True, black)
    screen.blit(score, (10, 10))

    # 刷新屏幕
    pygame.display.flip()

# 退出pygame
pygame.quit()

该游戏包含了贪吃蛇的基本功能，如移动、吃苹果、碰撞检测等，并且添加了图片和分数显示等更多细节。您可以自由修改和扩展它以获得更好的游戏体验。