用 Python 做“贪吃蛇”，在线吃不饱_python贪吃蛇小程序运行环境需求

一、基本环境配置

●版本：Python3

●系统：Windows

●相关模块：pygame

pip install pygame安装即可

二、实现效果

三、实现代码

import random, pygame, sys
from pygame.locals import *
import time
'''
'''
FPS = 1
##WINDOWWIDTH = 640
#WINDOWHEIGHT = 480
WINDOWWIDTH = 600
WINDOWHEIGHT = 480
CELLSIZE = 40
assert WINDOWWIDTH % CELLSIZE == 0, "Window width must be a multiple of cell size."
assert WINDOWHEIGHT % CELLSIZE == 0, "Window height must be a multiple of cell size."
CELLWIDTH = int(WINDOWWIDTH / CELLSIZE)
CELLHEIGHT = int(WINDOWHEIGHT / CELLSIZE) 
 
#             R    G    B
WHITE     = (255, 255, 255)
BLACK     = (  0,   0,   0)
RED       = (255,   0,   0)
GREEN     = (  0, 255,   0)
DARKGREEN = (  0, 155,   0)
DARKGRAY  = ( 40,  40,  40)
BGCOLOR = BLACK
 
 
 
UP = 'up'
DOWN = 'down'
LEFT = 'left'
RIGHT = 'right'
 
direction = UP
DIRECTION = [UP,DOWN,LEFT,RIGHT]
 
HEAD = 0 # syntactic sugar: index of the worm's head
 
 
 
distance = []
 
for y in range(CELLHEIGHT):
    distance.append([])
    for x in range(CELLWIDTH):
        distance[y].append(8888)
 
def into_queue(grid, queue, visited, worm,apple):
    x,y = grid
    if (x, y) == (apple['x'],apple['y']):
        return False
    elif x < 0 or x >= CELLWIDTH:
        return False
    elif y < 0 or y >= CELLHEIGHT:
        return False
    elif (x, y) in queue:
        return False
    elif (x, y) in visited:
        return False
    else:
        return True
 
def is_snake(x,y,worm):
    for body in worm:
        if body['x'] == x and body['y'] == y:
            return True
    return False
 
 
def cal_distance(worm,apple):
    queue = [(apple['x'],apple['y'])]
    visited = []
    found = False
    for y in range(CELLHEIGHT):
        for x in range(CELLWIDTH):
            distance[y][x] = 9999
 
    distance[apple['y']][apple['x']] = 0
 
    while len(queue) != 0:
        head = queue[0]
        visited.append(head)
        up_grid = head[0], head[1] - 1
        down_grid = head[0], head[1] + 1
        left_grid = head[0] - 1, head[1]
        right_grid = head[0] + 1, head[1]
 
        for grid in [up_grid, down_grid, left_grid, right_grid]:
            if into_queue(grid, queue, visited,worm,apple):
                if grid[0] == worm[HEAD]['x'] and grid[1] == worm[HEAD]['y']:
                    found = True
                if not is_snake(grid[0],grid[1],worm):
                    queue.append(grid)
                    distance[grid[1]][grid[0]] = distance[head[1]][head[0]] + 1
        queue.pop(0)
    return found
 
def main():
    global FPSCLOCK, DISPLAYSURF, BASICFONT
 
    pygame.init()
    FPSCLOCK = pygame.time.Clock()
    DISPLAYSURF = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT))
    BASICFONT = pygame.font.Font('freesansbold.ttf', 18)
    pygame.display.set_caption('Snaky')
 
    showStartScreen()
    while True:
        runGame()
        showGameOverScreen()
 
def can_move(grid, worm):
    x,y = grid
    if x < 0 or x >= CELLWIDTH:
        return False
    elif y < 0 or y >= CELLHEIGHT:
        return False
    elif is_snake(x, y,worm):
        return False
    elif (x, y) == (worm[HEAD]['x'], worm[HEAD]['y']):
        return False
    else:
        return True
 
 
def update_dirc(now, direc):
    loc = {'x':0,'y':0}
    if direc == UP:
        loc = {'x':now['x'],'y':now['y']-1}
    elif direc == DOWN:
        loc = {'x':now['x'],'y':now['y']+1}
    elif direc == RIGHT:
        loc = {'x':now['x']+1,'y':now['y']}
    elif direc == LEFT:
        loc = {'x':now['x']-1,'y':now['y']}
    return loc
 
def virtual_run(wormCoords, apple,direction):
    wormCoords = list(wormCoords)
    food_eated = False
    while not food_eated:
        cal_distance(wormCoords,apple)
        four_dis = [99999, 99999, 99999, 99999]
        if can_move((wormCoords[HEAD]['x'], wormCoords[HEAD]['y'] - 1), wormCoords):