//ProccessPlayerCommand()
        //Take line of text from player
        //break into two sections:
        //Command: Which command is it? Is it valid? Do something e.g Move
        //Arguments e.g. North
        public static void ProcessPlayerCommand(string line)
        {
            //text from player, store into variables.
            string command    = TextUtilities.ExtractCommand(line.Trim()).Trim().ToLower(); //trims string to avoid command confusion with upper case/spaces
            string arguements = TextUtilities.ExtractArguments(line.Trim()).Trim().ToLower();

            //what command is it?
            switch (command)
            {
            case "exit":
                Program.quitGame = true;
                return;

            case "quit":
                Program.quitGame = true;
                return;

            case "q":
                Program.quitGame = true;
                return;

            case "help":
                ShowHelp();
                break;       //break out of switch before checking for other cases

            case "move":
                Player.Move(arguements);
                break;

            case "go":
                Player.Move(arguements);
                break;

            case "walk":
                Player.Move(arguements);
                break;

            case "look":
                Player.GetCurrentRoom().DescribeRoom();
                break;

            case "examine":
                Player.GetCurrentRoom().DescribeRoom();
                break;

            case "pickup":
                Player.PickUpItem(arguements);
                break;

            case "take":
                Player.PickUpItem(arguements);
                break;

            case "grab":
                Player.PickUpItem(arguements);
                break;

            case "drop":
                Player.DropItem(arguements);
                break;

            case "use":
                Player.DropItem(arguements);
                break;

            case "inventory":
                Player.DisplayInventory();
                break;

            case "whereami":
                Player.GetCurrentRoom().ShowTitle();
                break;

            case "location":
                Player.GetCurrentRoom().ShowTitle();
                break;

            case "coffee":
                Level.AmendKitchen();
                Player.GetCurrentRoom().DescribeRoom();
                break;

            default:
                TextBuffer.Add("I don't understand what you mean, type 'help' for some help");
                break;
            }

            //apply game rules, has win condition been met? Has the game state changed?
            GameController.ApplyRules();

            //take text buffer and display info
            TextBuffer.DisplayText();
        }
 //Start Game()
 //Tells player what room they are in.
 //Display the level.
 public static void StartGame()
 {
     Player.GetCurrentRoom().DescribeRoom();
     TextBuffer.DisplayText();
 }