public void Rotate(Rotate rotation)
{
switch (rotation)
{
case Contracts.Rotate.Left:
Bearing = RotateLeft(Bearing);
break;
case Contracts.Rotate.Right:
Bearing = RotateRight(Bearing);
break;
default:
throw new ArgumentOutOfRangeException("rotation", rotation, null);
}
}
public void AfterMaximumNumberOfCommandsExecutedDoesRoverReportItsPositionAndHeading()
{
//Arrange
CardinalHeading reportedHeading = CardinalHeading.South;
ICoordinates reportedCoordinates = new Coordinates()
{
X = 0, Y = 0
};
_roverController.RaiseLocationReport += delegate(object sender, LocationHeadingEventArg e)
{
reportedHeading = e.Heading;
reportedCoordinates = e.Location;
};
//Act
_roverController.AddCommand(new MoveCommand(_rover)
{
Distance = 50
});
_roverController.AddCommand(new RotateCommand(_rover)
{
Rotation = Rotate.Left
});
_roverController.AddCommand(new MoveCommand(_rover)
{
Distance = 23
});
_roverController.AddCommand(new RotateCommand(_rover)
{
Rotation = Rotate.Left
});
_roverController.AddCommand(new MoveCommand(_rover)
{
Distance = 4
});
//Assert
Assert.AreEqual(24, reportedCoordinates.X);
Assert.AreEqual(46, reportedCoordinates.Y);
Assert.AreEqual(CardinalHeading.North, reportedHeading);
}
public Navigation(IPlanet planet, ICompass compass, ICoordinates initialLocation, CardinalHeading initialHeading)
{
if (planet == null)
{
throw new ArgumentNullException("planet");
}
if (compass == null)
{
throw new ArgumentNullException("compass");
}
if (initialLocation == null)
{
throw new ArgumentNullException("initialLocation");
}
Location = initialLocation;
Heading = initialHeading;
Planet = planet;
Compass = compass;
}
private CardinalHeading RotateRight(CardinalHeading heading)
{
CardinalHeading newHeading = heading;
switch (heading)
{
case CardinalHeading.North:
newHeading = CardinalHeading.East;
break;
case CardinalHeading.East:
newHeading = CardinalHeading.South;
break;
case CardinalHeading.South:
newHeading = CardinalHeading.West;
break;
case CardinalHeading.West:
newHeading = CardinalHeading.North;
break;
}
return(newHeading);
}
public LocationHeadingEventArg(ICoordinates location, CardinalHeading heading)
{
Location = location;
Heading = heading;
}
public Compass()
{
Bearing = CardinalHeading.North;
}
