python贪吃蛇小游戏

好的，我可以为你提供一个简单的Python贪吃蛇小游戏。你需要先安装Python，并安装Pygame库。

以下是代码：

import pygame
import random

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

# 设置屏幕大小
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600

# 贪吃蛇方块大小
BLOCK_SIZE = 20

# 初始化pygame
pygame.init()

# 创建屏幕
screen = pygame.display.set_mode([SCREEN_WIDTH, SCREEN_HEIGHT])

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

# 设置时钟
clock = pygame.time.Clock()

# 贪吃蛇类
class Snake:
    def __init__(self):
        self.body = [(SCREEN_WIDTH/2, SCREEN_HEIGHT/2)]
        self.direction = 'right'

    # 移动
    def move(self):
        head_x, head_y = self.body[0]
        if self.direction == 'right':
            new_head = (head_x + BLOCK_SIZE, head_y)
        elif self.direction == 'left':
            new_head = (head_x - BLOCK_SIZE, head_y)
        elif self.direction == 'up':
            new_head = (head_x, head_y - BLOCK_SIZE)
        elif self.direction == 'down':
            new_head = (head_x, head_y + BLOCK_SIZE)
        self.body.insert(0, new_head)

    # 改变方向
    def change_direction(self, direction):
        if direction == 'right' and self.direction != 'left':
            self.direction = 'right'
        elif direction == 'left' and self.direction != 'right':
            self.direction = 'left'
        elif direction == 'up' and self.direction != 'down':
            self.direction = 'up'
        elif direction == 'down' and self.direction != 'up':
            self.direction = 'down'

    # 判断是否撞墙
    def hit_wall(self):
        head_x, head_y = self.body[0]
        if head_x < 0 or head_x >= SCREEN_WIDTH or head_y < 0 or head_y >= SCREEN_HEIGHT:
            return True
        return False

    # 判断是否撞到自己
    def hit_self(self):
        head = self.body[0]
        for i in range(1, len(self.body)):
            if head == self.body[i]:
                return True
        return False

    # 吃食物
    def eat_food(self, food):
        if self.body[0] == food:
            return True
        return False

    # 绘制贪吃蛇
    def draw(self):
        for x, y in self.body:
            pygame.draw.rect(screen, GREEN, [x, y, BLOCK_SIZE, BLOCK_SIZE])

    # 获取贪吃蛇头部坐标
    def get_head(self):
        return self.body[0]

# 食物类
class Food:
    def __init__(self):
        self.x = random.randint(0, SCREEN_WIDTH/BLOCK_SIZE - 1) * BLOCK_SIZE
        self.y = random.randint(0, SCREEN_HEIGHT/BLOCK_SIZE - 1) * BLOCK_SIZE

    # 绘制食物
    def draw(self):
        pygame.draw.rect(screen, RED, [self.x, self.y, BLOCK_SIZE, BLOCK_SIZE])

    # 重新生成食物
    def regenerate(self):
        self.x = random.randint(0, SCREEN_WIDTH/BLOCK_SIZE - 1) * BLOCK_SIZE
        self.y = random.randint(0, SCREEN_HEIGHT/BLOCK_SIZE - 1) * BLOCK_SIZE

# 创建贪吃蛇和食物
snake = Snake()
food = Food()

# 游戏循环
done = False
while not done:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                snake.change_direction('right')
            elif event.key == pygame.K_LEFT:
                snake.change_direction('left')
            elif event.key == pygame.K_UP:
                snake.change_direction('up')
            elif event.key == pygame.K_DOWN:
                snake.change_direction('down')

    # 绘制背景
    screen.fill(BLACK)

    # 移动贪吃蛇
    snake.move()

    # 判断是否撞墙或撞到自己
    if snake.hit_wall() or snake.hit_self():
        done = True

    # 判断是否吃到食物
    if snake.eat_food(food.get_head()):
        food.regenerate()

    # 绘制贪吃蛇和食物
    snake.draw()
    food.draw()

    # 更新屏幕
    pygame.display.update()

    # 控制游戏速度
    clock.tick(10)

# 退出游戏
pygame.quit()

运行代码后，你就可以玩贪吃蛇小游戏啦！