java实现迷宫算法--转

源码如下:
package com.test;

import java.util.Stack;
class Step{
    int x,y,d;
    public Step(int x,int y,int d) {
        this.x = x;//横坐标
        this.y = y;//纵坐标
        this.d = d;//方向
}
}

public class MazeTest {

public static void main(String[] args) {
// 迷宫定义
int[][] maze = {{1,1,1,1,1,1,1,1,1,1},
    {1,0,1,1,1,0,1,1,1,1},
    {1,1,0,1,0,1,1,1,1,1},
    {1,0,1,0,0,0,0,0,1,1},
    {1,0,1,1,1,0,1,1,1,1},
    {1,1,0,0,1,1,0,0,0,1},
    {1,0,1,1,0,0,1,1,0,1},
    {1,1,1,1,1,1,1,1,1,1}};
int[][] move = {{0,1},{1,1},{1,0},{1,-1},{0,-1},{-1,-1},{-1,0},{-1,1}};
    Stack s = new Stack();
    Stack s1 = new Stack();
    int a = path(maze, move, s);
    while(!s.isEmpty()){
    Step step = s.pop();
    System.out.println(step.x+":"+step.y);
    }
}
public static int path(int[][] maze,int[][] move,Stack s){
    Step temp = new Step(1,1,-1); //起点
    s.push(temp);
    while(!s.isEmpty()){
        temp = s.pop();
        int x = temp.x;
        int y = temp.y;
        int d = temp.d+1;
    while(d<8){
        int i = x + move[d][0];
        int j = y + move[d][1];
        if(maze[i][j] == 0){ //该点可达
        temp = new Step(i,j,d); //到达新点
        s.push(temp);
        x = i;
        y = j;
    maze[x][y] = -1; //到达新点，标志已经到达
    if(x == 6 && y == 8){
        return 1; //到达出口，迷宫有路，返回1
    }else{
        d = 0; //重新初始化方向
    }
}else{
    d++; //改变方向
    }
    }
}
    return 0;
}

}                            

import java.util.*;
 
class Position{
    public Position(){
 
    }
 
    public Position(int row, int col){
        this.col = col;
        this.row = row;
    }
 
    public String toString(){
        return "(" + row + " ," + col + ")";
    }
 
    int row;
    int col;
}
 
class Maze{
    public Maze(){
        maze = new int[15][15];
        stack = new Stack<Position>();
        p = new boolean[15][15];
    }
 
    /*
     * 构造迷宫
     */
    public void init(){
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入迷宫的行数");
        row = scanner.nextInt();
        System.out.println("请输入迷宫的列数");
        col = scanner.nextInt();
        System.out.println("请输入" + row + "行" + col + "列的迷宫");
        int temp = 0;
        for(int i = 0; i < row; ++i) {
            for(int j = 0; j < col; ++j) {
                temp = scanner.nextInt();
                maze[i][j] = temp;
                p[i][j] = false;
            }
        }
    }
 
    /*
     * 回溯迷宫，查看是否有出路
     */
    public void findPath(){
        // 给原始迷宫的周围家一圈围墙
        int temp[][] = new int[row + 2][col + 2];
        for(int i = 0; i < row + 2; ++i) {
            for(int j = 0; j < col + 2; ++j) {
                temp[0][j] = 1;
                temp[row + 1][j] = 1;
                temp[i][0] = temp[i][col + 1] = 1;
            }
        }
        // 将原始迷宫复制到新的迷宫中
        for(int i = 0; i < row; ++i) {
            for(int j = 0; j < col; ++j) {
                temp[i + 1][j + 1] = maze[i][j];
            }
        }
        // 从左上角开始按照顺时针开始查询
 
        int i = 1;
        int j = 1;
        p[i][j] = true;
        stack.push(new Position(i, j));
        while (!stack.empty() && (!(i == (row) && (j == col)))) {
 
            if ((temp[i][j + 1] == 0) && (p[i][j + 1] == false)) {
                p[i][j + 1] = true;
                stack.push(new Position(i, j + 1));
                j++;
            } else if ((temp[i + 1][j] == 0) && (p[i + 1][j] == false)) {
                p[i + 1][j] = true;
                stack.push(new Position(i + 1, j));
                i++;
            } else if ((temp[i][j - 1] == 0) && (p[i][j - 1] == false)) {
                p[i][j - 1] = true;
                stack.push(new Position(i, j - 1));
                j--;
            } else if ((temp[i - 1][j] == 0) && (p[i - 1][j] == false)) {
                p[i - 1][j] = true;
                stack.push(new Position(i - 1, j));
                i--;
            } else {
                stack.pop();
                if(stack.empty()){
                    break;
                }
                i = stack.peek().row;
                j = stack.peek().col;
            }
 
        }
 
        Stack<Position> newPos = new Stack<Position>();
        if (stack.empty()) {
            System.out.println("没有路径");
        } else {
            System.out.println("有路径");
            System.out.println("路径如下：");
            while (!stack.empty()) {
                Position pos = new Position();
                pos = stack.pop();
                newPos.push(pos);
            }
        }
         
        /*
         * 图形化输出路径
         * */
         
        String resault[][]=new String[row+1][col+1];
        for(int k=0;k<row;++k){
            for(int t=0;t<col;++t){
                resault[k][t]=(maze[k][t])+"";
            }
        }
        while (!newPos.empty()) {
            Position p1=newPos.pop();
            resault[p1.row-1][p1.col-1]="#";
         
        }
         
        for(int k=0;k<row;++k){
            for(int t=0;t<col;++t){
                System.out.print(resault[k][t]+"\t");
            }
            System.out.println();
        }
     
 
    }
 
    int maze[][];
    private int row = 9;
    private int col = 8;
    Stack<Position> stack;
    boolean p[][] = null;
}
 
class hello{
    public static void main(String[] args){
        Maze demo = new Maze();
        demo.init();
        demo.findPath();
    }
}