教你怎么用Python实现多路径迷宫


Posted in Python onApril 29, 2021

一、思路介绍

  • 在已有的单路径迷宫基础上打开一块合适的墙就可以构成2路径的迷宫。
  • 打开的墙不能和已有的路径过近。
  • 1。从开始和终点开始进行广度优先搜索,并为迷宫中的每个单元格记录单元格远离开始和终点的步数。
  • 2。通过将距离开头较近的所有单元格放入 start 集合,并将更接近目标的所有单元格放入end集合来将迷宫分成两个部分。
  • 3。 选择分开两个区域的任意一面墙拆开就可以形成2通路的迷宫。
  • 如想生成最短的通路可以选择相邻格子距离差值最大的那面墙拆开,一般情况下这两条路距离也比较远。

二、图示

教你怎么用Python实现多路径迷宫

三、分区域演示代码

#!/usr/bin/python3.7
# -*- coding: utf-8 -*-
import random
import pygame
#import depth_maze
import maze
#import aldous_broder_maze

pygame.init()  # 初始化pygame
size = width, height = 800, 600  # 设置窗口大小
screen = pygame.display.set_mode(size)  # 显示窗口
# 颜色
diamond_color_size = 8
COLOR_RED, COLOR_BLUE, COLOR_GREEN, COLOR_YELLOW, COLOR_BLACK, COLOR_GREY, COLOR_GOLDEN, COLOR_NO_DIAMOND = list(range(
    diamond_color_size))
COLOR = {
    COLOR_RED: (255, 0, 0),
    COLOR_BLUE: (0, 0, 255),
    COLOR_GREEN: (0, 255, 0),
    COLOR_YELLOW: (255, 255, 0),
    COLOR_BLACK: (0, 0, 0),
    COLOR_GREY: (250, 240, 230),
    COLOR_GOLDEN : (255,215,0),
    COLOR_NO_DIAMOND: (100, 100, 100),
}
# 格子大小
DIAMOND_LEN = 20
DIAMOND_SIZE = (DIAMOND_LEN, DIAMOND_LEN)
# 蓝格子
DIAMOND=pygame.surface.Surface(DIAMOND_SIZE).convert()
DIAMOND.fill(COLOR[COLOR_BLUE])
# 绿格子 
DIAMOND_GREEN=pygame.surface.Surface(DIAMOND_SIZE).convert()
DIAMOND_GREEN.fill(COLOR[COLOR_GREEN])
# 红格子 
DIAMOND_RED=pygame.surface.Surface(DIAMOND_SIZE).convert()
DIAMOND_RED.fill(COLOR[COLOR_RED])
# 黄格子 
DIAMOND_YELLOW=pygame.surface.Surface(DIAMOND_SIZE).convert()
DIAMOND_YELLOW.fill(COLOR[COLOR_YELLOW])
# 灰的格子 
DIAMOND_GREY=pygame.surface.Surface(DIAMOND_SIZE).convert()
DIAMOND_GREY.fill(COLOR[COLOR_GREY])
# 字体
use_font = pygame.font.Font("FONT.TTF", 16)
use_font12 = pygame.font.Font("FONT.TTF", 12)
# 背景
background=pygame.surface.Surface(size).convert()
background.fill(COLOR[COLOR_BLACK])
# 文字
score_surface = use_font.render("找到终点", True, COLOR[COLOR_BLACK], COLOR[COLOR_GREY])
# 时间
clock = pygame.time.Clock()

##############################################
#   格子访问标记x,y,0,右墙x,y,1,下墙x,y,2
##############################################
#标记 
NOWALL=maze.NOWALL # 无墙
WALL=maze.WALL  # 有墙
WALL2=maze.WALL2  # 有墙

VISIT=maze.VISIT # 到访过
NOVISIT=maze.NOVISIT # 没到过
VERTICAL = maze.VERTICAL # 垂直的
HORIZONTAL = maze.HORIZONTAL# 水平的
INFINITE = maze.INFINITE # 无穷远

INFINITE = maze.INFINITE # 无穷远

# 
def FindNext(pathList, walls, grids, rows, cols):
    nextList = [] # 下一步
    for node in pathList:
        r, c = node
        l = grids[r][c]
        nl=l+1
        # 可以到达的位置
        if r>0 and NOWALL == walls[r][c][1] and INFINITE == grids[r-1][c]:
            # move = 'u'
            nr=r-1
            nc=c
            if (nr,nc) not in nextList:
                nextList.append((nr,nc))
                grids[nr][nc] = l+1
        if c>0 and NOWALL == walls[r][c][0] and INFINITE == grids[r][c-1]:
            # move = 'l'
            nr=r
            nc=c-1
            if (nr,nc) not in nextList:
                nextList.append((nr,nc))
                grids[nr][nc] = l+1
        if c<cols-1 and NOWALL == walls[r][c+1][0] and INFINITE == grids[r][c+1] :
            # move='r'
            nr=r
            nc=c+1
            if (nr,nc) not in nextList:
                nextList.append((nr,nc))
                grids[nr][nc] = l+1
        if r<rows-1 and NOWALL == walls[r+1][c][1] and INFINITE == grids[r+1][c] :
            # move='d'
            nr=r+1
            nc=c
            if (nr,nc) not in nextList:
                nextList.append((nr,nc))
                grids[nr][nc] = l+1
    return nextList


def draw_diamond(r,c, screen, POSX, POSY, diamod):
    px,py=POSX + 1 + (c) * DIAMOND_SIZE[0], POSY + 1 + (r) * DIAMOND_SIZE[1]
    # 标记访问过的格子
    screen.blit(diamod, (px, py))
    return 

def draw_diamond_and_str(r,c, screen, POSX, POSY, diamod, use_font, string, color, color_back):
    px,py=POSX + 1 + (c) * DIAMOND_SIZE[0], POSY + 1 + (r) * DIAMOND_SIZE[1]
    # 标记访问过的格子
    screen.blit(diamod, (px, py))
    distance_surface = use_font.render(string, True, color, color_back)
    screen.blit(distance_surface, (px, py))
    return 


# Sample algorithm
def multipath_maze_demo(rows, cols):
    #walls = maze.aldous_broder_maze(rows, cols)
    #walls = maze.depth_maze(rows, cols)
    #walls = maze.kruskal_maze(rows, cols)
    #walls = maze.prim_maze(rows, cols)
    #walls = maze.wilson_maze(rows, cols)
    walls = maze.wilson_maze(rows, cols)
    POSX=40
    POSY=40
    # 初始化未访问
    grids=[[ INFINITE for i in range(cols)]for j in range(rows)]
    # 起点
    # 标记迷宫
    r=0
    c=0
    findEndPoint=False
    findPath=False
    # 起点
    startPoint=(r,c)
    # 终点
    stopPoint=(rows-1,cols-1)
    # 
    mainList=[] # 主路径

    beginList=[startPoint]
    endList=[stopPoint]
    grids[r][c]=0 # 标记已经到过格子距离
    grids[stopPoint[0]][stopPoint[1]]=0

    # 没有访问过的格子
    notUseGrids = [] 
    for tr in range(rows):
        for tc in range(cols):
            notUseGrids.append((tr,tc))

    beginMap=beginList
    endMap=endList

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return
        if notUseGrids:        
            beginNextList = [] # 下一步
            for node in beginList:
                r, c = node
                l = grids[r][c]
                # 可以到达的位置
                if r>0 and NOWALL == walls[r][c][1] and INFINITE == grids[r-1][c]:
                    # move = 'u'
                    nr=r-1
                    nc=c
                    if (nr,nc) not in beginNextList:
                        beginNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if c>0 and NOWALL == walls[r][c][0] and INFINITE == grids[r][c-1]:
                    # move = 'l'
                    nr=r
                    nc=c-1
                    if (nr,nc) not in beginNextList:
                        beginNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if c<cols-1 and NOWALL == walls[r][c+1][0] and INFINITE == grids[r][c+1] :
                    # move='r'
                    nr=r
                    nc=c+1
                    if (nr,nc) not in beginNextList:
                        beginNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if r<rows-1 and NOWALL == walls[r+1][c][1] and INFINITE == grids[r+1][c] :
                    # move='d'
                    nr=r+1
                    nc=c
                    if (nr,nc) not in beginNextList:
                        beginNextList.append((nr,nc))
                        grids[nr][nc] = l+1
            # 下一圈
            beginList = beginNextList
            beginMap = beginMap + beginNextList
            # end
            endNextList = [] # 下一步
            for node in endList:
                r, c = node
                l = grids[r][c]
                # 可以到达的位置
                if r>0 and NOWALL == walls[r][c][1] and INFINITE == grids[r-1][c]:
                    # move = 'u'
                    nr=r-1
                    nc=c
                    if (nr,nc) not in endNextList:
                        endNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if c>0 and NOWALL == walls[r][c][0] and INFINITE == grids[r][c-1]:
                    # move = 'l'
                    nr=r
                    nc=c-1
                    if (nr,nc) not in endNextList:
                        endNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if c<cols-1 and NOWALL == walls[r][c+1][0] and INFINITE == grids[r][c+1] :
                    # move='r'
                    nr=r
                    nc=c+1
                    if (nr,nc) not in endNextList:
                        endNextList.append((nr,nc))
                        grids[nr][nc] = l+1
                if r<rows-1 and NOWALL == walls[r+1][c][1] and INFINITE == grids[r+1][c] :
                    # move='d'
                    nr=r+1
                    nc=c
                    if (nr,nc) not in endNextList:
                        endNextList.append((nr,nc))
                        grids[nr][nc] = l+1
            # 下一圈
            endList = endNextList
            endMap = endMap + endNextList

        elif findEndPoint and not findPath:
            mainList.append((r,c))
            l = grids[r][c]
            nl=l-1
            # 最近的
            if r>0 and NOWALL == walls[r][c][1] and nl == grids[r-1][c]:
                # move = 'u'
                nr=r-1
                nc=c
            if c>0 and NOWALL == walls[r][c][0] and nl == grids[r][c-1]:
                # move = 'l'
                nr=r
                nc=c-1
                beginNextList.append((nr,nc))
            if c<cols-1 and NOWALL == walls[r][c+1][0] and nl == grids[r][c+1] :
                # move='r'
                nr=r
                nc=c+1
            if r<rows-1 and NOWALL == walls[r+1][c][1] and nl == grids[r+1][c] :
                # move='d'
                nr=r+1
                nc=c
            # 找到起点
            if 0 == nl:
                mainList.append((nr,nc))
                findPath = True
            r,c=nr,nc

        screen.blit(background, (0, 0))
        # 格子
        for cx in range(cols):
            for ry in range(rows):
                px,py=POSX + 1 + (cx) * DIAMOND_SIZE[0], POSY + 1 + (ry) * DIAMOND_SIZE[1]
                # 标记访问过的格子
                if maze.INFINITE == grids[ry][cx]:
                    draw_diamond(ry, cx, screen, POSX, POSY, DIAMOND)
                else:
                    s = "{}".format(grids[ry][cx])
                    draw_diamond_and_str(ry, cx, screen, POSX,POSY, DIAMOND_GREY, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_GREY]) 
        # 圈地
        for pos in beginMap:
            s = "{}".format(grids[pos[0]][pos[1]])
            draw_diamond_and_str(pos[0], pos[1], screen, POSX,POSY, DIAMOND_GREEN, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_GREEN])
        for pos in endMap:
            s = "{}".format(grids[pos[0]][pos[1]])
            draw_diamond_and_str(pos[0], pos[1], screen, POSX,POSY, DIAMOND_YELLOW, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_YELLOW])
        # 循环外圈
        if beginList and not mainList:
            for pos in beginList:
                s = "{}".format(grids[pos[0]][pos[1]])
                draw_diamond_and_str(pos[0], pos[1], screen, POSX,POSY, DIAMOND_RED, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_RED])
            for pos in endList:
                s = "{}".format(grids[pos[0]][pos[1]])
                draw_diamond_and_str(pos[0], pos[1], screen, POSX,POSY, DIAMOND_RED, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_RED])
        # 路径
        if mainList:
            for pos in mainList:
                s = "{}".format(grids[pos[0]][pos[1]])
                draw_diamond_and_str(pos[0], pos[1], screen, POSX,POSY, DIAMOND_YELLOW, use_font12, s, COLOR[COLOR_BLACK], COLOR[COLOR_YELLOW])
            # r,c
            px,py=POSX + 1 + (c) * DIAMOND_SIZE[0], POSY + 1 + (r) * DIAMOND_SIZE[1]
            screen.blit(DIAMOND_GREEN, (px, py))
            s = "{}".format(grids[r][c])
            distance_surface = use_font12.render(s, True, COLOR[COLOR_BLACK], COLOR[COLOR_GREEN])
            screen.blit(distance_surface, (px, py))

        # 画外墙
        pygame.draw.rect(screen, COLOR[COLOR_RED], (POSX + 0, POSY + 0, DIAMOND_LEN*cols+1, DIAMOND_LEN*rows+1), 2)
        # 画没打通的墙
        for cx in range( cols):
            for ry in range(rows):
                px,py=POSX + 1 + (cx) * DIAMOND_SIZE[0], POSY + 1 + (ry) * DIAMOND_SIZE[1]
                color = COLOR[COLOR_BLACK]
                if maze.WALL == walls[ry][cx][0]:
                    pygame.draw.line(screen, color, (px, py), (px, py+DIAMOND_LEN), 2)
                if maze.WALL == walls[ry][cx][1]:
                    pygame.draw.line(screen, color, (px, py), (px+DIAMOND_LEN, py), 2)
        # 打印文字提示
        if findEndPoint:
            screen.blit(score_surface, (POSX+50, POSY+rows*22))
        # 帧率
        clock.tick(25)

        pygame.display.update()
    return 



# main
if __name__ == "__main__":
    '''main'''
    multipath_maze_demo(20, 30)

到此这篇关于教你怎么用Python实现多路径迷宫的文章就介绍到这了,更多相关Python实现多路径迷宫内容请搜索三水点靠木以前的文章或继续浏览下面的相关文章希望大家以后多多支持三水点靠木!

Python 相关文章推荐
python 中文乱码问题深入分析
Mar 13 Python
Python异常处理总结
Aug 15 Python
Python下使用Psyco模块优化运行速度
Apr 05 Python
Python找出文件中使用率最高的汉字实例详解
Jun 03 Python
Python 实现数据库(SQL)更新脚本的生成方法
Jul 09 Python
tensorflow实现简单逻辑回归
Sep 07 Python
Python命名空间的本质和加载顺序
Dec 17 Python
python实现126邮箱发送邮件
May 20 Python
python如何删除列为空的行
Jul 17 Python
python如何在word中存储本地图片
Apr 07 Python
matlab xlabel位置的设置方式
May 21 Python
Python turtle实现贪吃蛇游戏
Jun 18 Python
python3.9之你应该知道的新特性详解
Apr 29 #Python
Python基础之tkinter图形化界面学习
Apr 29 #Python
Django cookie和session的应用场景及如何使用
Apr 29 #Python
Python使用random模块实现掷骰子游戏的示例代码
Apr 29 #Python
python中requests库+xpath+lxml简单使用
python实现进度条的多种实现
教你如何使用Python下载B站视频的详细教程
You might like
生成sessionid和随机密码的例子
2006/10/09 PHP
PHP安装攻略:常见问题解答(二)
2006/10/09 PHP
在PHP中养成7个面向对象的好习惯
2010/01/28 PHP
php下关于Cannot use a scalar value as an array的解决办法
2010/08/08 PHP
利用php下载xls文件(自己动手写的)
2014/04/18 PHP
PHP简单选择排序算法实例
2015/01/26 PHP
YII Framework框架教程之使用YIIC快速创建YII应用详解
2016/03/15 PHP
ThinkPHP5.0框架验证码功能实现方法【基于第三方扩展包】
2019/03/11 PHP
jQuery toggle()设置CSS样式
2009/11/05 Javascript
理解Javascript_12_执行模型浅析
2010/10/18 Javascript
Jquery弹出窗口插件 LeanModal的使用方法
2012/03/10 Javascript
JavaScript子类用Object.getPrototypeOf去调用父类方法解析
2013/12/05 Javascript
chrome下img加载对height()的影响示例探讨
2014/05/26 Javascript
JavaScript中的Array 对象(数组对象)
2016/06/02 Javascript
NodeJs——入门必看攻略
2016/06/27 NodeJs
vuex如何重置所有state(可定制)
2019/01/17 Javascript
Vue解决echart在element的tab切换时显示不正确问题
2020/08/03 Javascript
vue3中轻松实现switch功能组件的全过程
2021/01/07 Vue.js
JavaScript使用setTimeout实现倒计时效果
2021/02/19 Javascript
Python学习笔记(二)基础语法
2014/06/06 Python
python随机在一张图像上截取任意大小图片的方法
2019/01/24 Python
对Python3 序列解包详解
2019/02/16 Python
python读取txt文件并取其某一列数据的示例
2019/02/19 Python
python循环定时中断执行某一段程序的实例
2019/06/29 Python
Python的互斥锁与信号量详解
2019/09/12 Python
详解Pycharm出现out of memory的终极解决方法
2020/03/03 Python
在django中使用post方法时,需要增加csrftoken的例子
2020/03/13 Python
python获取linux系统信息的三种方法
2020/10/14 Python
AE美国鹰美国官方网站:American Eagle Outfitters
2016/08/22 全球购物
女孩每月服装订阅盒:kidpik
2019/04/17 全球购物
英国汽车零件购物网站:GSF Car Parts
2019/05/23 全球购物
家乐福台湾线上购物网:Carrefour台湾
2020/09/15 全球购物
2014预防青少年违法犯罪工作总结
2014/12/10 职场文书
教师学期末个人总结
2015/02/13 职场文书
入党函调证明材料
2015/06/19 职场文书
小学二年级语文教学反思
2016/03/03 职场文书