public SetRoverStateCommand Translate(Entities.Rover rover, RoverActionCommand roverActionCommand)
{
var result = new SetRoverStateCommand
{
XCoordinate = rover.GridPosition.X,
YCoordinate = rover.GridPosition.Y
};
switch (roverActionCommand.RoverAction)
{
case RoverAction.TurnLeft:
result.FacingDirection =
_roverActionToDirection.GetDirection(rover.RoverFacingDirection, roverActionCommand.RoverAction);
break;
case RoverAction.TurnRight:
result.FacingDirection =
_roverActionToDirection.GetDirection(rover.RoverFacingDirection, roverActionCommand.RoverAction);
break;
case RoverAction.MoveForwardInTheDirectionRoverIsFacing:
switch (rover.RoverFacingDirection)
{
case Direction.North:
result.YCoordinate--;
break;
case Direction.South:
result.YCoordinate++;
break;
case Direction.East:
result.XCoordinate++;
break;
case Direction.West:
result.XCoordinate--;
break;
}
result.FacingDirection = rover.RoverFacingDirection;
break;
}
return(result);
}
public void ShouldMoveRoverAlongXAccessIfFacingWest()
{
var rover = _fixture.Build <Rover.Core.Entities.Rover>()
.With(x => x.RoverFacingDirection, Direction.West)
.Create();
var roverActionCommand = new RoverActionCommand()
{
RoverAction = RoverAction.MoveForwardInTheDirectionRoverIsFacing, ActionExecutionOrder = 1
};
_roverActonToCoordinateTranslationService = new RoverActonToCoordinateTranslationService(new RoverActionToDirection());
var result = _roverActonToCoordinateTranslationService.Translate(rover, roverActionCommand);
Assert.AreEqual(Direction.West, result.FacingDirection);
Assert.AreEqual(rover.GridPosition.X - 1, result.XCoordinate);
Assert.AreEqual(rover.GridPosition.Y, result.YCoordinate);
}
public void ShouldReturnCommandForRoverToPointEastIfFacingNorthAndTurningRight()
{
var rover = _fixture.Build <Rover.Core.Entities.Rover>()
.With(x => x.RoverFacingDirection, Direction.North)
.Create();
var roverActionCommand = new RoverActionCommand()
{
RoverAction = RoverAction.TurnRight, ActionExecutionOrder = 1
};
_roverActonToCoordinateTranslationService = new RoverActonToCoordinateTranslationService(new RoverActionToDirection());
var result = _roverActonToCoordinateTranslationService.Translate(rover, roverActionCommand);
Assert.AreEqual(Direction.East, result.FacingDirection);
Assert.AreEqual(rover.GridPosition.X, result.XCoordinate);
Assert.AreEqual(rover.GridPosition.Y, result.YCoordinate);
}
