贪吃蛇代码python

以下是一个简单的贪吃蛇代码示例，使用 Python 语言编写：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 设置游戏界面尺寸、背景颜色、标题
screen = pygame.display.set_mode((600, 600))
pygame.display.set_caption('贪吃蛇')

# 定义颜色
BLACK = pygame.Color(0, 0, 0)
WHITE = pygame.Color(255, 255, 255)
RED = pygame.Color(255, 0, 0)
GREEN = pygame.Color(0, 255, 0)

# 定义游戏结束函数
def game_over():
    font = pygame.font.SysFont(None, 48)
    text = font.render('游戏结束', True, RED)
    text_rect = text.get_rect()
    text_rect.centerx = screen.get_rect().centerx
    text_rect.centery = screen.get_rect().centery - 24
    screen.blit(text, text_rect)
    pygame.display.flip()
    pygame.time.delay(3000)
    pygame.quit()
    sys.exit()

# 定义主函数
def main():
    # 初始化贪吃蛇和食物
    snake_positions = [(200, 200), (210, 200), (220, 200)]
    snake_direction = 'right'
    food_position = (random.randint(0, 590), random.randint(0, 590))
    food_exist = True

    # 设置游戏帧率
    clock = pygame.time.Clock()

    # 开始游戏循环
    while True:
        # 处理游戏事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.KEYDOWN:
                if 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'
                elif 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'

        # 移动贪吃蛇
        if snake_direction == 'right':
            new_head = (snake_positions[0][0] + 10, snake_positions[0][1])
        elif snake_direction == 'left':
            new_head = (snake_positions[0][0] - 10, snake_positions[0][1])
        elif snake_direction == 'up':
            new_head = (snake_positions[0][0], snake_positions[0][1] - 10)
        elif snake_direction == 'down':
            new_head = (snake_positions[0][0], snake_positions[0][1] + 10)

        snake_positions.insert(0, new_head)

        # 判断贪吃蛇是否吃到食物
        if snake_positions[0] == food_position:
            food_exist = False
        else:
            snake_positions.pop()

        # 重新生成食物
        if not food_exist:
            food_position = (random.randint(0, 590), random.randint(0, 590))
            food_exist = True

        # 绘制游戏界面
        screen.fill(BLACK)

        for position in snake_positions:
            pygame.draw.rect(screen, GREEN, pygame.Rect(position[0], position[1], 10, 10))

        pygame.draw.rect(screen, WHITE, pygame.Rect(food_position[0], food_position[1], 10, 10))

        # 判断贪吃蛇是否死亡
        if snake_positions[0][0] < 0 or snake_positions[0][0] > 590 or snake_positions[0][1] < 0 or snake_positions[0][1] > 590:
            game_over()

        for position in snake_positions[1:]:
            if snake_positions[0] == position:
                game_over()

        # 更新游戏界面
        pygame.display.update()

        # 控制游戏帧率
        clock.tick(10)

# 启动游戏
if __name__ == '__main__':
    main()

这是一个基本的贪吃蛇代码示例，可以实现贪吃蛇的基本功能。当然，你可以根据自己的需要进行修改和扩展。