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// $Id: G4BigBanger.hh,v 1.17 2010-09-28 20:15:00 mkelsey Exp $
// GEANT4 tag: $Name: not supported by cvs2svn $
//
// 20100315  M. Kelsey -- Remove "using" directive and unnecessary #includes.
// 20100407  M. Kelsey -- Replace std::vector<> returns with data members.
// 20100413  M. Kelsey -- Pass G4CollisionOutput by ref to ::collide()
// 20100517  M. Kelsey -- Inherit from common base class
// 20100519  M. Kelsey -- Get rid of proton and neutron masses as arguments!
// 20100714  M. Kelsey -- Switch to new G4CascadeColliderBase class
// 20100726  M. Kelsey -- Move std::vector<> buffer to .hh file
// 20100928  M. Kelsey -- Migrate to integer A and Z

#ifndef G4BIG_BANGER_HH
#define G4BIG_BANGER_HH

#include "G4CascadeColliderBase.hh"
#include "G4InuclElementaryParticle.hh"
#include <vector>

class G4CollisionOutput;


class G4BigBanger : public G4CascadeColliderBase {
public:
  G4BigBanger();
  virtual ~G4BigBanger() {};

  void collide(G4InuclParticle* bullet, G4InuclParticle* target,
	       G4CollisionOutput& output);

private: 
  void generateBangInSCM(G4double etot, G4int a, G4int z);

  void generateMomentumModules(G4double etot, G4int a, G4int z); 

  G4double xProbability(G4double x, G4int a) const; 

  G4double maxProbability(G4int a) const;

  G4double generateX(G4int ia, G4double promax) const; 

  // Buffers for big-bang results
  std::vector<G4InuclElementaryParticle> particles;
  std::vector<G4double> momModules;
  std::vector<G4LorentzVector> scm_momentums;
};        

#endif /* G4BIG_BANGER_HH */