数据结构-栈应用-迷宫

使用了 unity 完成，因为 unity 非常方便图形显示

Maze.cs

using UnityEngine;using System.Collections;using System;using System.Collections.Generic;public class Maze : MonoBehaviour {public int StartIndex;public int EndIndex;private int[,] MazeArray;private const int row = 7;private const int col = 7;private GameObject Player;private bool success = false;private Stack<int> Path = new Stack<int>();void Awake(){// 创建迷宫MazeArray = new int[row, col]{{1, 1, 1, 1, 1, 1, 1},{1, 1, 0, 0, 0, 0, 1},{1, 0, 0, 0, 1, 0, 1},{1, 0, 0, 0, 1, 0, 1},{1, 0, 1, 1, 1, 1, 1},{1, 0, 0, 0, 0, 0, 1},{1, 1, 1, 1, 1, 1, 1},};for(int i = 0; i < row; i++){for(int j = 0; j < col; j++){if(MazeArray[i, j] == 1){CreateCube(i, j, CubeType.Wall);}else{CreateCube(i, j, CubeType.Path);}}}// 设置迷宫的起始位置和终点位置Vector2 pos = GetPositionByIndex(StartIndex);Player = CreateCube((int)pos.x, (int)pos.y, CubeType.Player);pos = GetPositionByIndex(EndIndex);CreateCube((int)pos.x, (int)pos.y, CubeType.Exit);}void Start () {// 激活玩家，开始探索MazePlayer player = new MazePlayer();player.LoadMaze(MazeArray, StartIndex, EndIndex);success = player.Search(ref Path);if(success){// 开始移动。。。。StartCoroutine(Move());}}IEnumerator Move(){if(Path.Count <= 0)yield break;Vector2 pos = GetPositionByIndex(Path.Pop());Player.transform.position = new Vector3(pos.x, pos.y, -0.2f);yield return new WaitForSeconds(0.4f);StartCoroutine(Move());}private GameObject CreateCube(int i, int j, CubeType type){GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);cube.transform.parent = transform;cube.gameObject.transform.position = new Vector3(i, j, 0);cube.transform.rotation = Quaternion.identity;switch(type){case CubeType.Wall:cube.name = "Wall";cube.renderer.material.color = Color.cyan;break;case CubeType.Player:cube.name = "Player";cube.renderer.material.color = Color.green;cube.gameObject.transform.position = new Vector3(i, j, -0.2f);break;case CubeType.Exit:cube.name = "Exit";cube.renderer.material.color = Color.red;cube.gameObject.transform.position = new Vector3(i, j, -0.1f);break;}return cube;}private Vector2 GetPositionByIndex(int index){int tempRow = index/ col;int tempCol = index - tempRow * col;return new Vector2(tempRow, tempCol);}private enum CubeType{Wall,Path,Player,Exit,}}

MazePlayer.cs

using UnityEngine;using System.Collections;using System.Collections.Generic;public class MazePlayer {private int _StartPos;private int _EndPos;private int[,] _MazeArray;private int _RowSize;private int _ColSize;public class Node{public int Index;public bool CanPass;public int Direction;public bool FootPrint;public Node(int index, bool canPass){this.Index = index;this.CanPass = canPass;this.Direction = 0;this.FootPrint = false;}}private List<Node> _NodeList = new List<Node>();public Stack<Node> PathStack{get; private set;}public void LoadMaze(int[,] maze, int startPos, int endPos){_MazeArray = maze;_RowSize = _MazeArray.GetLength(0); _ColSize = _MazeArray.GetLength(1);for(int i = 0; i < _RowSize; i++){for(int j = 0; j < _ColSize; j++){Node node = new Node(i * _RowSize + j, _MazeArray[i, j] == 0);_NodeList.Add(node);}}this._StartPos = startPos;this._EndPos = endPos;}public bool Search(ref Stack<int> Path){PathStack = new Stack<Node>();PathStack.Push(_NodeList[_StartPos]);do{// 查看当前块是否可通过Node node = PathStack.Peek();if(node.CanPass){if(node.Index == _EndPos){break;}MarkPrint(node);// 顺时针方向加入节点四个方向的块if(node.Direction < 4){node.Direction++;int index = GetNextNodeIndex(node.Index, node.Direction);Node nextNode = _NodeList[index];if(nextNode.FootPrint == false){PathStack.Push(nextNode);}}else{node = PathStack.Pop();node.CanPass = false;}}else{node = PathStack.Pop();node.CanPass = false;}}while(PathStack.Count > 0);if(PathStack.Count > 0){while(PathStack.Count > 0){Node node = PathStack.Pop();Path.Push(node.Index);}return true;}return false;}private void MarkPrint(Node node){node.FootPrint = true;}private int GetNextNodeIndex(int crtIndex, int direction){int crtRow = crtIndex / _ColSize;int crtCol = crtIndex - crtRow * _ColSize;int nextRow = crtRow;int nextCol = crtCol;if(direction == 1){nextRow--;}else if(direction == 2){nextCol++;}else if(direction == 3){nextRow++;}else{nextCol--;}return nextRow * _ColSize + nextCol;}}