pygame贪吃蛇

import pygame
from sys import exit
import random

#点定义
class Point:
    row = 0
    col = 0
    def __init__(self,row,col):
        self.row = row
        self.col = col

    def copy(self):
        return Point(self.row,self.col)

    def __str__(self):
        return "Point(%d,%d)" %(self.row,self.col)

    def __eq__(self, other):
        return self.row == other.row and self.col == other.col

#初始化全局变量
width = 800
hight = 600
ROW = 30
COL = 40
direct = 'left' #方向
Running = True
SPEED = 100
#窗口初始化
pygame.init()
window = pygame.display.set_mode((width,hight,))
pygame.display.set_caption('贪吃蛇游戏')

CUSTOMEVENT = pygame.USEREVENT + 1
pygame.time.set_timer(CUSTOMEVENT,SPEED)

#初始化蛇的位置
head = Point(row = int(ROW/2),col = int(COL/2))
snake =[Point(head.row,head.col+1),
        Point(head.row,head.col+2),
        Point(head.row,head.col+3)]

#初始化颜色变量
head_color = (0,158,128)
snake_food_color = (255,255,0)
snake_color = (200,147,158)

#随机食物
def gen_food():
    while 1:
        position = Point(row = random.randint(0,ROW-1),col = random.randint(0,COL-1))
        is_coll = False
        # if head.row == position.row and head.col == position.col:
        #     is_coll = True
        if head == position:
            is_coll = True

        for body in snake:
            if body.row == position.row and body.col == position.col:
                is_coll = True
        if not is_coll:
            break
    return position

snake_food = gen_food()

#画格子
def rect(point,color):
    left = point.col * width/COL
    top = point.row *hight/ROW
    pygame.draw.rect(window,color,(left,top,width/COL,hight/ROW))

#处理事件
def HandleEvent():
    global direct
    global Running
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
           Running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == 273 or event.key ==119:
                if direct =='left' or direct == 'right':
                    direct = 'down'
            if event.key == 274 or event.key == 115:
                if direct == 'left' or direct == 'right':
                    direct = 'up'
            if event.key == 276 or event.key == 97:
                if direct == 'up' or direct == 'down':
                    direct = 'left'
            if event.key == 275 or event.key == 100:
                if direct == 'up' or direct == 'down':
                    direct = 'right'
        elif event.type == CUSTOMEVENT:
            MoveSnake()
#移动蛇位置
def MoveSnake():
    global snake_food
    head_orgin = head.copy();
    if direct == 'left':
        head.col -= 1
    if direct == 'right':
        head.col += 1
    if direct == 'up':
        head.row += 1
    if direct == 'down':
        head.row -= 1
    eat = head == snake_food
    if eat:
        snake_food = gen_food()
    else:
        snake.pop()
    snake.insert(0, head_orgin)

    print("---------begin------------")
    print(head)
    for body in snake:
        print(body)
    print("---------end------------")

#检查碰撞
def CheckGameRun():
    if head.col < 0 or head.row < 0 or head.row >= ROW or head.col >= COL:
        print("crah the wall")
        return  False
    for body in snake:
        if head == body:
            print("crash self")
            return  False
    return True

#渲染窗口
def DrawGameWnd():
    pygame.draw.rect(window, (245, 135, 155), (0, 0, width, hight))
    rect(head, head_color)
    rect(snake_food, snake_food_color)
    for body in snake:
        rect(body, snake_color)

clock = pygame.time.Clock()
#游戏循环
while Running:
    clock.tick(30)
    HandleEvent()
    # MoveSnake()
    is_continue = CheckGameRun()
    if is_continue:
        DrawGameWnd()
        pygame.display.flip()
    else:
        print("Game Over")
        break

参考已有的贪吃蛇项目，并在在原项目上做了优化，使用了定时器控制速度

原文：https://blog.youkuaiyun.com/weixin_44051713/article/details/90042927