using System;

public class Program

{

    public static void Main()

    {

        //create 2-D arrays for maps and descriptions of locations to move around in

​

            string[,] maps = new string[2, 2];

            string[,] descriptions = new string[2, 2];

​

            //populate the arrays

            //first # = row, second # = column

            maps[0, 0] = "|   |   |\n" +

                         "---------\n" +

                         "| x |   |\n";

​

            maps[0, 1] = "|   |   |\n" +

                         "---------\n" +

                         "|   | x |\n";

​

            maps[1, 0] = "| x |   |\n" +

                         "---------\n" +

                         "|   |   |\n";

​

            maps[1, 1] = "|   | x |\n" +

                         "---------\n" +

                         "|   |   |\n";

​

            descriptions[0, 0] = "lower left";

            descriptions[0, 1] = "lower right";

            descriptions[1, 0] = "upper left";

            descriptions[1, 1] = "upper right";

​

            int row = 0, column = 0; //store the player's current position

​

            //main gameplay loop

            string command = "";

​

            while (command != "quit")

            {

                //show them where they currently are and print the description of this location

                Console.WriteLine(maps[row, column]);

                Console.WriteLine(descriptions[row, column]);

​

                //get command

                Console.Write("Go which way? (QUIT to stop): ");

                command = Console.ReadLine().ToLower();

​

                //check which direction we're going

                if(command == "left" || command == "west")

                {

                    //make sure we don't go off the grid

                    if (column > 0)

                        column--; //move one column to the left

                    else

                    {

                        Console.WriteLine("Can't go off the grid.");

                        Console.WriteLine("[Press Enter to continue.]");

                        Console.ReadLine();

                    }

                }

​

                else if(command == "right" || command == "east")

                {

                    //make sure we don't go off the grid

                    if (column < 1)

                        column++; //move one column to the right

                    else

                    {

                        Console.WriteLine("Can't go off the grid.");

                        Console.WriteLine("[Press Enter to continue.]");

                        Console.ReadLine();

                    }

                }

​

                else if(command == "up" || command == "north")

                {

                    //make sure we don't go off the grid

                    if (row < 1)

                        row++; //move one row up

                    else

                    {

                        Console.WriteLine("Can't go off the grid.");

                        Console.WriteLine("[Press Enter to continue.]");

                        Console.ReadLine();

                    }

                }

​

                else if(command == "down" || command == "south")

                {

                    // make sure we don't go off the grid

                    if (row > 0)

                        row--; //move one row down

                    else

                    {

                        Console.WriteLine("Can't go off the grid.");

                        Console.WriteLine("[Press Enter to continue.]");

                        Console.ReadLine();

                    }

                }

​

                else if(command == "quit")

                {

                    //do nothing, loop will end

                }

​

                else //bad direction

                {

                    Console.WriteLine("Not a valid direction.");

                    Console.WriteLine("[Press Enter to continue.]");

                    Console.ReadLine();

                }

​

                Console.Clear(); //clear the screen before looping again

            }

    }

}