如何用python制作贪吃蛇以及AI版贪吃蛇

用python制作普通贪吃蛇

哈喽，大家不知道是上午好还是中午好还是下午好还是晚上好！
贪吃蛇，应该是90后小时候的记忆（连我这个00后也不例外），今天，我们就用python这款编程语言来实现贪吃蛇
系统：所有都可以
需导入模块：
random
pygame
pygame.locals
sys
下载以上模块指令：
random和sys是Python自带的，我们只需要下载pygame即可
下载pygame：
在开始菜单输入“cmd”回车打开，输入``指令：pip install pygame
苹果电脑需要改成：pip3 install pygame
下载好后，打开python的shell界面，输入import pygame，回车，如果没报错，及代表安装完成。
接下来什么都不说，直接奉上代码（恕我没写注释）：

import random
import pygame
import sys
from pygame.locals import *
 
Snakespeed = 17
Window_Width = 800
Window_Height = 500
Cell_Size = 20  # Width and height of the cells
# Ensuring that the cells fit perfectly in the window. eg if cell size was
# 10     and window width or windowheight were 15 only 1.5 cells would
# fit.
assert Window_Width % Cell_Size == 0, "Window width must be a multiple of cell size."
# Ensuring that only whole integer number of cells fit perfectly in the window.
assert Window_Height % Cell_Size == 0, "Window height must be a multiple of cell size."
Cell_W = int(Window_Width / Cell_Size)  # Cell Width
Cell_H = int(Window_Height / Cell_Size)  # Cellc Height
 
 
White = (255, 255, 255)
Black = (0, 0, 0)
Red = (255, 0, 0)  # Defining element colors for the program.
Green = (0, 255, 0)
DARKGreen = (0, 155, 0)
DARKGRAY = (40, 40, 40)
YELLOW = (255, 255, 0)
Red_DARK = (150, 0, 0)
BLUE = (0, 0, 255)
BLUE_DARK = (0, 0, 150)
 
 
BGCOLOR = Black  # Background color
 
 
UP = 'up'
DOWN = 'down'      # Defining keyboard keys.
LEFT = 'left'
RIGHT = 'right'
 
HEAD = 0  # Syntactic sugar: index of the snake's head
 
 
def main():
    global SnakespeedCLOCK, DISPLAYSURF, BASICFONT
 
    pygame.init()
    SnakespeedCLOCK = pygame.time.Clock()
    DISPLAYSURF = pygame.display.set_mode((Window_Width, Window_Height))
    BASICFONT = pygame.font.Font('freesansbold.ttf', 18)
    pygame.display.set_caption('Snake')
 
    showStartScreen()
    while True:
        runGame()
        showGameOverScreen()
 
 
def runGame():
    # Set a random start point.
    startx = random.randint(5, Cell_W - 6)
    starty = random.randint(5, Cell_H - 6)
    wormCoords = [{
   
   'x': startx, 'y': starty},
                  {
   
   'x': startx - 1, 'y': starty},
                  {
   
   'x': startx - 2, 'y': starty}]
    direction = RIGHT
 
    # Start the apple in a random place.
    apple = getRandomLocation()
 
    while True:  # main game loop
        for event in pygame.event.get():  # event handling loop
            if event.type == QUIT:
                terminate()
            elif event.type == KEYDOWN:
                if (event.key == K_LEFT) and direction != RIGHT:
                    direction = LEFT
                elif (event.key == K_RIGHT) and direction != LEFT:
                    direction = RIGHT
                elif (event.key == K_UP) and direction != DOWN:
                    direction = UP
                elif (event.key == K_DOWN) and direction != UP:
                    direction = DOWN
                elif event.key == K_ESCAPE:
                    terminate()
 
        # check if the Snake has hit itself or the edge
        if wormCoords[HEAD]['x'] == -1 or wormCoords[HEAD]['x'] == Cell_W or wormCoords[HEAD]['y'] == -1 or wormCoords[HEAD]['y'] == Cell_H:
            return  # game over
        for wormBody in wormCoords[1:]:
            if wormBody['x'] == wormCoords[HEAD]['x'] and wormBody['y'] == wormCoords[HEAD]['y']:
                return  # game over
 
        # check if Snake has eaten an apply
        if wormCoords[HEAD]['x'] == apple['x'] and wormCoords[HEAD]['y'] == apple['y']:
            # don't remove worm's tail segment
            apple = getRandomLocation()  # set a new apple somewhere
        else:
            del wormCoords[-1]  # remove worm's tail segment
 
        # move the worm by adding a segment in the direction it is moving
        if direction == UP:
            newHead = {
   
   'x': wormCoords[HEAD]['x'],
                       'y': wormCoords[HEAD]['y'] - 1}
        elif direction == DOWN:
            newHead = {
   
   'x': wormCoords[HEAD]