private static FacesEnum Turn(int newFace, FacesEnum defaultFace)
{
if (Enum.IsDefined(typeof(FacesEnum), newFace))
{
return((FacesEnum)newFace);
}
else
{
return(defaultFace);
}
}
public PlaceCommand(SimulatorMap map, string args)
{
if (String.IsNullOrEmpty(args))
{
throw new InvalidArgumentsException();
}
var argumentsSplitted = args.Split(',');
if (argumentsSplitted.Length != 3)
{
throw new InvalidArgumentsException();
}
this.map = map;
this.potentialPosition = Tuple.Create(int.Parse(argumentsSplitted[0]), int.Parse(argumentsSplitted[1]));
this.potentialFace = (FacesEnum)Enum.Parse(typeof(FacesEnum), argumentsSplitted[2].ToUpper());
}
public static FacesEnum TurnRight(FacesEnum currentFace)
{
return(Turn((int)currentFace - 1, FacesEnum.EAST));
}
public static FacesEnum TurnLeft(FacesEnum currentFace)
{
return(Turn((int)currentFace + 1, FacesEnum.NORTH));
}
public void UpdateFace(FacesEnum newFace)
{
this.Face = newFace;
}
void ICommand.Execute(ToyRobot toyRobot)
{
FacesEnum newPotentialFace = GetPotentialFace(toyRobot);
toyRobot.UpdateFace(newPotentialFace);
}
