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// $Id: G4Scatterer.hh,v 1.5 2006/06/29 20:35:58 gunter Exp $ //
//
//
// removing a auther spec that was part of a template.

#ifndef G4SCATTERER_HH
#define G4SCATTERER_HH

#include "globals.hh"
#include <vector>
#include "G4VScatterer.hh"
#include "G4VCollision.hh"
#include "G4KineticTrackVector.hh"
#include "G4CollisionVector.hh"
#include "G4BCAction.hh"

class G4KineticTrack;

class G4Scatterer : public G4VScatterer, public G4BCAction
{
public:

  G4Scatterer();
  
  virtual ~G4Scatterer();
  
  virtual G4double GetTimeToInteraction(const G4KineticTrack& trk1, 
					const G4KineticTrack& trk2);
  
  G4double GetCrossSection(const G4KineticTrack& trk1, 	
			   const G4KineticTrack& trk2);
			   
  virtual G4KineticTrackVector* Scatter(const G4KineticTrack& trk1, 	
					   const G4KineticTrack& trk2);

  virtual const std::vector<G4CollisionInitialState *> &
         GetCollisions(G4KineticTrack * aProjectile, 
	               std::vector<G4KineticTrack *> & someCandidates,
		       G4double aCurrentTime);

  virtual G4KineticTrackVector * 
         GetFinalState(G4KineticTrack * aProjectile, 
	               std::vector<G4KineticTrack *> & theTargets);

private:

  G4VCollision* FindCollision(const G4KineticTrack& trk1, 
			      const G4KineticTrack& trk2);
  
  struct Register
  {
    template<class T> void operator()(T*, G4CollisionVector * aC)
    {
      G4VCollision* aT = new T; 
      aC->push_back(aT);
    }
  };

  G4CollisionVector collisions;
  std::vector<G4CollisionInitialState *> theCollisions;

}; 
#endif