////////////////////////////////////////////////////////////////////
/// \class RAT::PosGen_UFO
///
/// \brief  Provides the UFO  position for generation.
///
/// \author Mark Stringer <ms711@sussex.ac.uk> -- contact person
///
/// REVISION HISTORY:\n
///     8/02/16 : M.Stringer - First version (copied from PosGen_Laserball)
///   07-02-2017: N. Barros  - Introduced BeginOfRun to load the database values
///
///  \details  Choose the laserball position via SetState string
///           /generator/pos/set x y z
///
////////////////////////////////////////////////////////////////////
#ifndef __RAT_PosGen_UFO__
#define __RAT_PosGen_UFO__

#include <G4ThreeVector.hh>

#include <RAT/GLG4PosGen.hh>

#include <vector>

namespace RAT
{

class PosGen_UFO : public GLG4PosGen
{
public:
  /// Constructor sets the default db name
  PosGen_UFO( const std::string& dbname = std::string( "posUFO" ));
  /// Destructor
  virtual ~PosGen_UFO() { };
  /// Initialise parameters from DB
  void Init();
  /// interface for generating the position
  virtual void GeneratePosition( G4ThreeVector& argResult );
  /// interface for setting the state
  virtual void SetState( G4String /*newValues*/ );
  /// interface for getting the state
  virtual G4String GetState() const;
  virtual void BeginOfRun();

protected:
  G4ThreeVector fPosition; ///< laserball position
  G4bool        fInitDB;   ///< flag for DB initialisation
  int fPositionMode; ///< Position mode. 0 to use position from this table

};

} // namespace RAT

#endif