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#ifndef _TOPSIM_G4INTERFACE_H_
#define _TOPSIM_G4INTERFACE_H_
#include "G4RunManager.hh"
#ifdef G4VIS_USE
class G4VisManager;
#endif
class I3Particle;
class G4BeamTestTank;
class G4BeamTestDetectorConstruction;
extern std::fstream testnew;
/**
* Top-level class to handle Geant4. All global things are initialized here (run manager, visualization manager, detector construction, physics list and user actions).
*/
class G4Interface
{
public:
G4Interface(const std::string& visMacro="");
~G4Interface();
// Static method which returns the singleton pointer to this class
static G4Interface* GetInstance() {return g4Interface_;}
/// Add a tank to the geometry. Should not be called after initialized.
void InstallTank(G4BeamTestTank* tank);
/// Initialize event. Most Geant4 global things are initialized the first time this is called.
void InitializeEvent();
/// To be called after simulating each IceTray event.
void TerminateEvent();
/// Simulate a single particle (InitializeEvent must be called first)
/* void InjectParticle(const std::string& particleName, */
/* const G4ThreeVector& particlePosition, */
/* const G4ThreeVector& particleDirection, */
/* const G4double particleEnergy); */
private:
void Initialize();
static G4Interface* g4Interface_;
G4RunManager runManager_;
#ifdef G4VIS_USE
G4VisManager* visManager_;
#endif
G4BeamTestDetectorConstruction* detector_;
bool initialized_;
bool eventInitialized_;
std::string visMacro_;
/* SET_LOGGER("G4Interface"); */
};
#endif
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