/// <summary>
/// this changes the direction in which robot is facing
/// </summary>
/// <param name="direction"></param>
/// <returns></returns>
public bool ChangeDirection(RotationalDirection direction)
{
if (Position == null)
{
return(false);
}
Position.Direction = (Face)(((int)Position.Direction + (int)direction) % 360);
return(true);
}
/// <summary>
/// Util function for Right and Left commands
/// </summary>
/// <param name="robotId"></param>
/// <param name="direction"></param>
/// <returns></returns>
private IHttpActionResult TurnRobot(string robotId, RotationalDirection direction)
{
try
{
//do validation first here.
if (string.IsNullOrEmpty(robotId))
{
var feedback = new CommandFeedback
{
IsSuccess = false,
ErrorCode = CommandErrorCode.RobotNotPositioned
};
return(Ok(JsonConvert.SerializeObject(feedback)));
}
var robot = RobotService.GetRobot(robotId);
//if we cannot find robot, we need to return error message.
if (robot == null)
{
var feedback = new CommandFeedback
{
IsSuccess = false,
ErrorCode = CommandErrorCode.RobotNotPositioned
};
return(Ok(JsonConvert.SerializeObject(feedback)));
}
CommandFeedback result;
if (direction == RotationalDirection.Left)
{
result = _rotateLeft.Impact(robot);
}
else if (direction == RotationalDirection.Right)
{
result = _rotateRight.Impact(robot);
}
else
{
throw new Exception("Invalid direction/Face provided for robot move.");
}
if (result.IsSuccess)
{
RobotService.PersistRobot(robot);
}
return(Ok(JsonConvert.SerializeObject(result)));
}
catch (Exception ex)
{
return(InternalServerError(ex));
}
}
public RotationCommand(string name, RotationalDirection direction)
{
Name = name;
Direction = direction;
}
