private void TurnLeft()
{
switch (CurrentState.Orientation)
{
case OrientationEnum.North:
CurrentState = CurrentState.ChangeOrientation(OrientationEnum.West);
break;
case OrientationEnum.West:
CurrentState = CurrentState.ChangeOrientation(OrientationEnum.South);
break;
case OrientationEnum.South:
CurrentState = CurrentState.ChangeOrientation(OrientationEnum.East);
break;
case OrientationEnum.East:
CurrentState = CurrentState.ChangeOrientation(OrientationEnum.North);
break;
default:
throw new InvalidOperationException();
}
}
public Robot(int battery, int x, int y, OrientationEnum orientation)
{
Battery = battery;
CurrentState = new CleaningRobotState(x, y, orientation);
}