libHero

using System;
using System.Collections;
using System.Collections.Generic;
using CommonPart;

namespace herodll
{
    public class Hero : IHero
    {
        private int heroX = 0;
        private int heroY = 0;
        public ILabirint Maze { get; set; }
        private Stack<int> stackWay = new Stack<int>();
        private Stack<int> stackCrossWay = new Stack<int>();

        private List<List<int>> usedCells = new List<List<int>>();
        private bool onExit = false;

        public void GameOver(object sender, EventArgs e) //2 - exit
        {
            onExit = true;
        }
        public void CrossWay()
        {
            int countCrossWay = 0;
            if (Maze.IsDownFree())
            {
                countCrossWay++;
            }
            if (Maze.IsLeftFree())
            {
                countCrossWay++;
            }
            if (Maze.IsRightFree())
            {
                countCrossWay++;
            }
            if (Maze.IsUpFree())
            {
                countCrossWay++;
            }
            if (countCrossWay > 2)
            {
                stackCrossWay.Push(stackWay.Count);
            }
        }
        //right - 1  down - 2  left - 3 up - 4
        public void SearchPath() //1 - wall, 0 - road
        {
            Maze.OnExit += GameOver;
            while (onExit == false)
            {
                CrossWay();
                if(Maze.IsRightFree() && stackWay.Peek() != 3)
                {
                    heroX++;
                    stackWay.Push(1);
                    Maze.MoveRight();
                }
                else if(Maze.IsDownFree() && stackWay.Peek() != 4)
                {
                    heroY--;
                    stackWay.Push(2);
                    Maze.MoveDown();
                }
                else if(Maze.IsLeftFree() && stackWay.Peek() != 1)
                {
                    heroX--;
                    stackWay.Push(3);
                    Maze.MoveLeft();
                }
                else if(Maze.IsUpFree() && stackWay.Peek() != 2)
                {
                    heroY++;
                    stackWay.Push(4);
                    Maze.MoveUp();
                }
                else //Тупик = возврат к предыдущей развилке.
                {
                    while(stackWay.Count != stackCrossWay.Peek())
                    {
                        if(stackWay.Peek() == 1)
                        {
                            Maze.MoveLeft();
                            stackWay.Pop();
                        }
                        else if (stackWay.Peek() == 2)
                        {
                            Maze.MoveUp();
                            stackWay.Pop();
                        }
                        else if (stackWay.Peek() == 3)
                        {
                            Maze.MoveRight();
                            stackWay.Pop();
                        }
                        else if (stackWay.Peek() == 4)
                        {
                            Maze.MoveDown();
                            stackWay.Pop();
                        }
                    }
                }
            }
        }
    }
}