public Robot(int TableMaxSize, int TableMinSize)
{
_forwardStep = 1;
_message = string.Empty;
_currentPosition = new Position();
_tableMaxSize = TableMaxSize;
_tableMinSize = TableMinSize;
_isToyPlaced = false;
}
public PlaceCommand(Toy toy, Position placePosition, MoveDirection moveDirection)
: base(toy)
{
this._toy.CurrentPosition = placePosition;
this._toy.Facing = moveDirection;
}
public override bool Move()
{
if (_isToyPlaced)
{
Position tempPosition = new Position() { X = _currentPosition.X, Y = _currentPosition.Y };
switch (_facing)
{
case MoveDirection.North:
tempPosition.Y += _forwardStep;
break;
case MoveDirection.East:
tempPosition.X += _forwardStep;
break;
case MoveDirection.West:
tempPosition.X -= _forwardStep;
break;
case MoveDirection.South:
tempPosition.Y -= _forwardStep;
break;
}
if (tempPosition.X > _tableMaxSize || tempPosition.X < _tableMinSize || tempPosition.Y > _tableMaxSize || tempPosition.Y < _tableMinSize)
{
_message = "robot is prevented from falling to destruction.";
return false;
}
_currentPosition = tempPosition;
_message = "Done";
return true;
}
else
{
_message = "The first valid command to the robot is a PLACE command.";
return false;
}
}
public ToyArgs()
{
_action = ToyActions.Invalid;
_direction = MoveDirection.Invalid;
_position = new Position();
}