/// <summary>
/// Gets a singleton instance for the parser
/// </summary>
/// <param name="rover">A valid Rover object</param>
/// <returns>The RoverOperationParser object</returns>
/// <exception cref="ArgumentNullException"></exception>
public static RoverOperationParser GetParser(Rover rover)
{
if (_singleton == null)
{
_singleton = new RoverOperationParser();
}
if (rover == null)
{
throw new ArgumentNullException("rover");
}
_singleton.Rover = rover;
return(_singleton);
}
/// <summary>
/// Computes the provided command literal.
/// If valid, performs all the commands for the Rover object. Otherwise throws a exception.
/// </summary>
/// <param name="inputLiteral">The command literal to compute</param>
/// <param name="rover">The current Rover that will be affected</param>
public void ComputeMovements(string inputLiteral, Rover rover)
{
RoverBoardFacade.ValidateInput(this, inputLiteral, rover);
RoverOperationParser.GetParser(rover).ParseOperations(inputLiteral);
}