using System;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.CursorVisible = false;
            bool collision = false;
            int playerX = 1, playerY = 1;
            int playerDX = 1, playerDY = 1;
            char[,] map = {{'#','#','#','#','#','#','#','#','#','#','#','#','#','#','#','#','#'},
                           {'#',' ',' ',' ',' ',' ','#',' ',' ','#',' ',' ',' ',' ',' ',' ','#'},
                           {'#',' ','#','#','#',' ','#',' ',' ','#','#','#','#','#','#',' ','#'},
                           {'#',' ',' ',' ','#',' ','#',' ',' ',' ',' ',' ',' ',' ',' ',' ','#'},
                           {'#','#','#',' ','#',' ','#',' ',' ',' ',' ',' ',' ',' ','#',' ','#'},
                           {'#',' ','#',' ','#','#','#',' ',' ','#','#',' ','#','#','#',' ','#'},
                           {'#',' ','#',' ',' ',' ',' ',' ',' ','#',' ',' ','#',' ','#',' ','#'},
                           {'#',' ',' ',' ','#','#','#',' ',' ','#',' ',' ','#',' ',' ',' ','#'},
                           {'#','#','#','#','#','#','#','#','#','#','#','#','#','#','#','#','#'}};
            DrawMap(map);
            while (true)
            {
                DrawPlayer(playerX, playerY);
                GetDirection(ref playerDX, ref playerDY);
                if (CheckCollision(map, ref playerX, ref playerY, playerDX, playerDY, collision) == true)
                {
                    Move(map, ref playerX, ref playerY, playerDX, playerDY);
                }
            }
        }
        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 bool CheckCollision(char[,] map, ref int playerX, ref int playerY, int playerDX, int playerDY, bool collision)
        {
            if (map[playerX + playerDX, playerY + playerDY] != '#')
            {
                return collision = true;
            }
            return collision = false;
        }
        static void Move(char[,] map, ref int playerX, ref int playerY, int playerDX, int playerDY)
        {
            Console.SetCursorPosition(playerY, playerX);
            Console.Write(" ");
            playerX += playerDX;
            playerY += playerDY;
            Console.SetCursorPosition(playerY, playerX);
            Console.Write("@");
        }
        static void GetDirection(ref int playerDX, ref int playerDY)
        {
            while (true)
            {
                if (Console.KeyAvailable)
                {
                    ConsoleKeyInfo key = Console.ReadKey(true);
                    switch (key.Key)
                    {
                        case ConsoleKey.UpArrow:
                            playerDX = -1; playerDY = 0;
                            break;
                        case ConsoleKey.DownArrow:
                            playerDX = 1; playerDY = 0;
                            break;
                        case ConsoleKey.LeftArrow:
                            playerDX = 0; playerDY = -1;
                            break;
                        case ConsoleKey.RightArrow:
                            playerDX = 0; playerDY = 1;
                            break;
                    }
                    break;
                }
            }
        }
        static void DrawPlayer(int playerX, int playerY)
        {
            Console.SetCursorPosition(playerY, playerX);
            Console.Write("@");
            Console.ReadKey(true);
        }
    }
}