贪吃蛇游戏代码如下：

import pygame

import sys

import random

# 初始化pygame

pygame.init()

# 设置屏幕大小

screen_width = 640

screen_height = 480

screen = pygame.display.set_mode((screen_width, screen_height))

# 设置游戏标题

pygame.display.set_caption("贪吃蛇")

# 定义颜色

WHITE = (255, 255, 255)

GREEN = (0, 255, 0)

RED = (255, 0, 0)

# 蛇的初始位置

snake_pos = [[100, 100], [80, 100], [60, 100]]

# 食物的初始位置

food_pos = [300, 300]

# 设置蛇和食物的大小

snake_size = 20

food_size = 20

# 设置游戏速度

clock = pygame.time.Clock()

speed = 15

# 设置蛇的移动方向

direction = "RIGHT"

while True:

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_UP and direction != "DOWN":

direction = "UP"

elif event.key == pygame.K_DOWN and direction != "UP":

direction = "DOWN"

elif event.key == pygame.K_LEFT and direction != "RIGHT":

direction = "LEFT"

elif event.key == pygame.K_RIGHT and direction != "LEFT":

direction = "RIGHT"

# 更新蛇的位置

if direction == "UP":

snake_pos.insert(0, [snake_pos[0][0], snake_pos[0][1] - snake_size])

elif direction == "DOWN":

snake_pos.insert(0, [snake_pos[0][0], snake_pos[0][1] + snake_size])

elif direction == "LEFT":

snake_pos.insert(0, [snake_pos[0][0] - snake_size, snake_pos[0][1]])

elif direction == "RIGHT":

snake_pos.insert(0, [snake_pos[0][0] + snake_size, snake_pos[0][1]])

# 检查蛇是否吃到食物

if snake_pos[0] == food_pos:

food_pos = [random.randrange(1, screen_width // snake_size) * snake_size,

random.randrange(1, screen_height // snake_size) * snake_size]

else:

snake_pos.pop()

# 检查蛇是否撞到墙或者自己

if (snake_pos[0][0] < 0 or snake_pos[0][0] >= screen_width or

snake_pos[0][1] < 0 or snake_pos[0][1] >= screen_height or

snake_pos[0] in snake_pos[1:]):

pygame.quit()

sys.exit()

# 绘制蛇和食物

screen.fill(WHITE)

for pos in snake_pos:

pygame.draw.rect(screen, GREEN, (pos[0], pos[1], snake_size, snake_size))

pygame.draw.rect(screen, RED, (food_pos[0], food_pos[1], food_size, food_size))

# 更新屏幕

pygame.display.flip()

# 控制游戏速度

clock.tick(speed)

（内容由讯飞星火AI生成）