public RoverSpaceVehicle(
ITurnLeft turnLeftAlgorithm
, ITurnRight turnRightAlgorithm
, IAdvance advanceAlgorithm
, MarsOrientations roverOrientation)
{
_turnLeftBehavior = turnLeftAlgorithm;
_turnRightBehavior = turnRightAlgorithm;
_advanceBehavior = advanceAlgorithm;
_roverPositionInMars = new Position(); //Default 0 , 0 Coordination;
_roverOrientationsInMars = roverOrientation;
}
//private Position _roverPosition;
//private MarsOrientations _roverOrientation;
//public AdvanceInMars(Position roverPosition, MarsOrientations roverOrientation)
//{
// _roverPosition = roverPosition;
// _roverOrientation = roverOrientation;
//}
public Position TurnAdvance(Position roverPosition, MarsOrientations roverOrientation)
{
if (roverOrientation == MarsOrientations.N)
{
return(new Position(roverPosition.X, roverPosition.Y + 1));
}
else if (roverOrientation == MarsOrientations.E)
{
return(new Position(roverPosition.X + 1, roverPosition.Y));
}
else if (roverOrientation == MarsOrientations.S)
{
return(new Position(roverPosition.X, roverPosition.Y - 1));
}
else if (roverOrientation == MarsOrientations.W)
{
return(new Position(roverPosition.X - 1, roverPosition.Y));
}
else
{
return(roverPosition);
}
}
public void PerfomTurnRight()
{
_roverOrientationsInMars = _turnRightBehavior.TurnRight(_roverOrientationsInMars);
}
public void PerformTurnLeft()
{
_roverOrientationsInMars = _turnLeftBehavior.TurnLeft(_roverOrientationsInMars);
}
public MarsOrientations TurnRight(MarsOrientations roverOrientation)
{
return((roverOrientation + 1) > MarsOrientations.W ? MarsOrientations.N : roverOrientation + 1);
}
public MarsOrientations TurnLeft(MarsOrientations roverOrientation)
{
return((roverOrientation - 1) < MarsOrientations.N ? MarsOrientations.W : roverOrientation - 1);
}
public void RoverTurnRight_ShouldReturnTheCorrespondentOrientationDependingHisActualOrientation(MarsOrientations roverActualOrientation, MarsOrientations roverFinalOrientation)
{
var stub = new RoverSpaceVehicle(
_turnLeftAlgorithm
, _turnRightAlgorithm
, _advanceAlgorithm
, roverActualOrientation);
stub.PerfomTurnRight();
Assert.Equal(roverFinalOrientation, stub._roverOrientationsInMars);
}