/// <summary>
/// Splits the input from the user and calls the intended action's method
/// </summary>
/// <param name="command">The user input</param>
/// <returns>An error message if applicable else empty sting</returns>
public string ProcessCommand(string command)
{
char[] delimiterChars = { ',', ' ' };
string[] wordsInCommand = command.Split(delimiterChars);
string result;
if (System.Enum.TryParse(wordsInCommand[COMMAND_INDEX], out Enum.ActionType action))
{
switch (action)
{
case Enum.ActionType.PLACE:
try
{
result = _tabletop.Place(
int.Parse(wordsInCommand[X_INDEX]),
int.Parse(wordsInCommand[Y_INDEX]),
System.Enum.Parse <Enum.Orientation>(wordsInCommand[ORIENTATION_INDEX]));
isPlaced = result.Equals(string.Empty);
}
catch (Exception ex)
{
if (ex is ArgumentException || ex is FormatException)
{
result = ex.Message;
}
else
{
throw;
}
}
break;
case Enum.ActionType.MOVE:
result = isPlaced ? _tabletop.Move() : Message.NOT_YET_PLACED_MESSAGE;
break;
case Enum.ActionType.LEFT:
result = isPlaced ? _tabletop.ChangeDirection(Enum.Direction.LEFT) : Message.NOT_YET_PLACED_MESSAGE;
break;
case Enum.ActionType.RIGHT:
result = isPlaced ? _tabletop.ChangeDirection(Enum.Direction.RIGHT) : Message.NOT_YET_PLACED_MESSAGE;
break;
case Enum.ActionType.REPORT:
result = isPlaced ? _tabletop.Report() : Message.NOT_YET_PLACED_MESSAGE;
break;
default:
result = Message.VALID_COMMANDS_MESSAGE;
break;
}
}
else
{
result = Message.VALID_COMMANDS_MESSAGE;
}
return(result);
}
public void TurnLeft()
{
_tabletop.Place(0, 0, Enum.Orientation.NORTH);
_tabletop.ChangeDirection(Enum.Direction.LEFT);
Assert.AreEqual(_tabletop.Report(), "0 0 WEST");
}