public IPosition TurnLeft()
{
var currentDirection = _position.GetCurrentDirection();
if (currentDirection == Direction.East)
{
_position = _position.ChangeDirectionTo(Direction.North);
}
if (currentDirection == Direction.North)
{
_position = _position.ChangeDirectionTo(Direction.West);
}
if (currentDirection == Direction.West)
{
_position = _position.ChangeDirectionTo(Direction.South);
}
if (currentDirection == Direction.South)
{
_position = _position.ChangeDirectionTo(Direction.East);
}
return(_position);
}
