[StartCode]
using System;
using System.Collections.Generic;
using System.Diagnostics.Eventing.Reader;
using System.IO;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
/* Сделать игровую карту с помощью двумерного массива. Сделать функцию рисования карты.
 *
 * Помимо этого, дать пользователю возможность перемещаться по карте и взаимодействовать с элементами
 * (например пользователь не может пройти сквозь стену)
 *
 * Все элементы являются обычными символами
*/


namespace ConsoleApp1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.CursorVisible = false;
            bool isPlay = true;
            char pacmanSumbol = '@';
            char enemySumbol = '&';
            char wallSumbol = '#';
            char cherrySumbol = '.';
            char emptySumbol = ' ';
            int pacmanPositionX;
            int pacmanPositionY;
            int enemyPositionX;
            int enemyPositionY;
            int enemyDirectionX = 1;
            int enemyDirectionY = 0;
            int pacmanDirectionX = 0;
            int pacmanDirectionY = 0;
            int allCherry = 0;
            int harvestedCherry = 0;
            char[,] map = ReadMap("MapPacMan", out enemyPositionX, out enemyPositionY, out pacmanPositionX, out pacmanPositionY, ref allCherry, pacmanSumbol, enemySumbol, cherrySumbol, emptySumbol);
            DrawMap(map);

            while (isPlay)
            {
                harvestedCherry = PickUpCherry(map, pacmanPositionX, pacmanPositionY, harvestedCherry, cherrySumbol, emptySumbol);

                if (Console.KeyAvailable)
                {
                    ConsoleKeyInfo key = Console.ReadKey(true);
                    ChangeDireсtion(key, ref pacmanDirectionX, ref pacmanDirectionY);
                }

                if (map[pacmanPositionY + pacmanDirectionY, pacmanPositionX + pacmanDirectionX] != wallSumbol)
                {
                    Move(map, pacmanSumbol, ref pacmanPositionX, ref pacmanPositionY, pacmanDirectionX, pacmanDirectionY);
                }

                if (map[enemyPositionY + enemyDirectionY, enemyPositionX + enemyDirectionX] != wallSumbol)
                {
                    Move(map, enemySumbol, ref enemyPositionX, ref enemyPositionY, enemyDirectionX, enemyDirectionY);
                }
                else
                {
                    Random random = new Random();
                    int randomDirection = random.Next(0, 4);
                    ChangeDireсtion(randomDirection, ref enemyDirectionX, ref enemyDirectionY);
                }

                if (enemyPositionX == pacmanPositionX && enemyPositionY == pacmanPositionY)
                {
                    Console.SetCursorPosition(0, 22);
                    Console.WriteLine("Вы попались !");
                    isPlay = false;
                }

                if (harvestedCherry == allCherry)
                {
                    Console.SetCursorPosition(0, 22);
                    Console.WriteLine("Вы победили !");
                    isPlay = false;
                }

                Console.SetCursorPosition(0, 20);
                Console.WriteLine($"Собрано : {harvestedCherry}/{allCherry}");
            }
        }


        static void ChangeDireсtion(int direction, ref int directionX, ref int directionY)
        {
            switch (direction)
            {
                case 0:
                    directionX = 0;
                    directionY = -1;
                    break;
                case 1:
                    directionX = 0;
                    directionY = 1;
                    break;
                case 2:
                    directionX = -1;
                    directionY = 0;
                    break;
                case 3:
                    directionX = 1;
                    directionY = 0;
                    break;
            }
        }

        static void ChangeDireсtion(ConsoleKeyInfo key, ref int positionX, ref int positionY)
        {
            const int LeftSide = 37;
            const int UpperSide = 38;
            const int RightSide = 39;
            const int DownSide = 40;
            int direction = Convert.ToChar(key.Key);

            switch (direction)
            {
                case UpperSide:
                    positionX = 0;
                    positionY = -1;
                    break;
                case DownSide:
                    positionX = 0;
                    positionY = 1;
                    break;
                case LeftSide:
                    positionX = -1;
                    positionY = 0;
                    break;
                case RightSide:
                    positionX = 1;
                    positionY = 0;
                    break;
            }
        }

        static void Move(char[,] map, char creature, ref int positionX, ref int positionY, int directionX, int directionY)
        {
            Console.SetCursorPosition(positionX, positionY);
            Console.Write(map[positionY, positionX]);
            Console.SetCursorPosition(positionX += directionX, positionY += directionY);
            Console.Write(creature);
            System.Threading.Thread.Sleep(100);
        }

        static int PickUpCherry(char[,] map, int positionX, int positionY, int cherry, char cherrySumbol, char emptySumbol)
        {
            if (map[positionY, positionX] == cherrySumbol)
            {
                cherry++;
                map[positionY, positionX] = emptySumbol;
            }

            return cherry;
        }

        static void DrawMap(char[,] map)
        {
            for (int i = 0; i < map.GetLength(0); i++)
            {
                for (int j = 0; j < map.GetLength(1); j++)
                {
                    Console.Write(map[i, j]);
                }

                Console.WriteLine();
            }
        }

        static char[,] ReadMap(string mapName, out int enemyPositionX, out int enemyPositionY, out int pacmanPositionX, out int pacmanPositionY, ref int allCHerry, char pacmanSumbol, char enemySumbol, char cherrySumbol, char emptySumbol)
        {
            pacmanPositionX = 1;
            pacmanPositionY = 0;
            enemyPositionX = 0;
            enemyPositionY = 0;
            string[] newFile = File.ReadAllLines($"Maps/{mapName}.txt");
            char[,] map = new char[newFile.Length, newFile[0].Length];

            for (int i = 0; i < map.GetLength(0); i++)
            {
                for (int j = 0; j < map.GetLength(1); j++)
                {
                    map[i, j] = newFile[i][j];

                    if (map[i, j] == pacmanSumbol)
                    {
                        pacmanPositionX = j;
                        pacmanPositionY = i;
                        map[i, j] = emptySumbol;
                    }
                    else if (map[i, j] == enemySumbol)
                    {
                        enemyPositionX = j;
                        enemyPositionY = i;
                        map[i, j] = emptySumbol;
                    }
                    else if (map[i, j] == emptySumbol)
                    {
                        map[i, j] = cherrySumbol;
                        allCHerry++;
                    }
                }
            }

            return map;
        }
    }
}
[EndCode]