public static bool TryMoveForward(Coordinate plateauCoordinate, Position roverPosition, out Coordinate nextCoordinate)
{
Coordinate calculatedCoordinate = roverPosition.Coordinate;
switch (roverPosition.CompassDirection)
{
case CompassDirection.North:
calculatedCoordinate.Y = calculatedCoordinate.Y + 1;
break;
case CompassDirection.West:
calculatedCoordinate.X = calculatedCoordinate.X - 1;
break;
case CompassDirection.South:
calculatedCoordinate.Y = calculatedCoordinate.Y - 1;
break;
case CompassDirection.East:
calculatedCoordinate.X = calculatedCoordinate.X + 1;
break;
default:
throw new ArgumentException();
}
bool isValidCoordinate = CoordinateHelper.IsValidCoordinate(plateauCoordinate, calculatedCoordinate);
nextCoordinate = isValidCoordinate ? calculatedCoordinate : new Coordinate();
return(isValidCoordinate);
}
public static bool IsValidInitialRover(Coordinate plateauCoordinate, string command)
{
// Valid initial rover position command format must be "{0} {1} {2}"
return(command.Length == 5 &&
command[1] == ' ' && command[3] == ' ' &&
int.TryParse(command[0].ToString(), out int roverPositionCoordinateX) &&
int.TryParse(command[2].ToString(), out int roverPositionCoordinateY) &&
CoordinateHelper.IsValidCoordinate(plateauCoordinate
, new Coordinate
{
X = roverPositionCoordinateX,
Y = roverPositionCoordinateY
}) &&
IsValidCompass(command[4].ToString()));
}
