public override void Execute(MarsRover rover, IPlanet planet)
{
switch (rover.Orientation)
{
case OrientationDirection.North:
rover.PositionY = (rover.PositionY + 1) % planet.GetSizeY();
break;
case OrientationDirection.South:
if (rover.PositionY == 0)
{
rover.PositionY = planet.GetSizeY() - 1;
}
else
{
rover.PositionY--;
}
break;
case OrientationDirection.East:
rover.PositionX = (rover.PositionX + 1) % planet.GetSizeX();
break;
case OrientationDirection.West:
if (rover.PositionX == 0)
{
rover.PositionX = planet.GetSizeX() - 1;
}
else
{
rover.PositionX--;
}
break;
default:
throw new InvalidEnumArgumentException();
}
}