source: trunk/source/processes/hadronic/models/parton_string/diffraction/src/G4FTFModel.cc @ 846

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// $Id: G4FTFModel.cc,v 1.7 2007/04/24 10:32:59 gunter Exp $
// GEANT4 tag $Name: geant4-09-01-patch-02 $
//

// ------------------------------------------------------------
//      GEANT 4 class implementation file
//
//      ---------------- G4FTFModel ----------------
//             by Gunter Folger, May 1998.
//       class implementing the excitation in the FTF Parton String Model
// ------------------------------------------------------------

#include "G4FTFModel.hh"
#include "G4FTFParticipants.hh"
#include "G4InteractionContent.hh"
#include "G4LorentzRotation.hh"
#include "G4ParticleDefinition.hh"
#include "G4ios.hh"

// Class G4FTFModel 

G4FTFModel::G4FTFModel():theExcitation(new G4DiffractiveExcitation()) // Uzhi
{
        G4VPartonStringModel::SetThisPointer(this);
}

G4FTFModel::G4FTFModel(G4double a, G4double b, G4double c):theExcitation(new G4DiffractiveExcitation())
{
        G4VPartonStringModel::SetThisPointer(this);
}

G4FTFModel::G4FTFModel(G4DiffractiveExcitation * anExcitation) 
: 
theExcitation(anExcitation)
{
        G4VPartonStringModel::SetThisPointer(this);
}



G4FTFModel::~G4FTFModel()
{}


const G4FTFModel & G4FTFModel::operator=(const G4FTFModel &)
{
        throw G4HadronicException(__FILE__, __LINE__, "G4FTFModel::operator= is not meant to be accessed ");
        return *this;
}


int G4FTFModel::operator==(const G4FTFModel &right) const
{
        return this==&right;
}

int G4FTFModel::operator!=(const G4FTFModel &right) const
{
        return this!=&right;
}

void G4FTFModel::Init(const G4Nucleus & aNucleus, const G4DynamicParticle & aProjectile)
{
        theParticipants.Init(aNucleus.GetN(),aNucleus.GetZ()); // Uzhi N-mass number Z-charge
 
        theProjectile = aProjectile;  
}

G4ExcitedStringVector * G4FTFModel::GetStrings()
{
        theParticipants.BuildInteractions(theProjectile);

        if (! ExciteParticipants()) return NULL;;

        G4ExcitedStringVector * theStrings = BuildStrings();

        return theStrings;
}

struct DeleteVSplitableHadron { void operator()(G4VSplitableHadron * aH){delete aH;} };

G4ExcitedStringVector * G4FTFModel::BuildStrings()
{       

// Loop over all collisions; find all primaries, and all target ( targets may 
//  be duplicate in the List ( to unique G4VSplitableHadrons)

        G4ExcitedStringVector * strings;
        strings = new G4ExcitedStringVector();
        
        std::vector<G4VSplitableHadron *> primaries;
        std::vector<G4VSplitableHadron *> targets;
        
        theParticipants.StartLoop();    // restart a loop 
        while ( theParticipants.Next() ) 
        {
            const G4InteractionContent & interaction=theParticipants.GetInteraction();
                 //  do not allow for duplicates ...
            if ( primaries.end() == std::find(primaries.begin(), primaries.end(), interaction.GetProjectile()) )
                primaries.push_back(interaction.GetProjectile());
                
            if ( targets.end() == std::find(targets.begin(), targets.end(),interaction.GetTarget()) ) 
                targets.push_back(interaction.GetTarget());
        }
            
        
//      G4cout << "BuildStrings prim/targ " << primaries.entries() << " , " <<
//                                           targets.entries() << G4endl;


        unsigned int ahadron;
        for ( ahadron=0; ahadron < primaries.size() ; ahadron++)
        {
            G4bool isProjectile=true;
            strings->push_back(theExcitation->String(primaries[ahadron], isProjectile));
        }
        for ( ahadron=0; ahadron < targets.size() ; ahadron++)
        {
            G4bool isProjectile=false;
            strings->push_back(theExcitation->String(targets[ahadron], isProjectile));
        }

        std::for_each(primaries.begin(), primaries.end(), DeleteVSplitableHadron());
        primaries.clear();
        std::for_each(targets.begin(), targets.end(), DeleteVSplitableHadron());
        targets.clear();
        
        return strings;
}

G4bool G4FTFModel::ExciteParticipants()
{
        
        while (theParticipants.Next())
        {          
           const G4InteractionContent & collision=theParticipants.GetInteraction();

//G4cout << " soft colls : " << collision.GetNumberOfSoftCollisions() << G4endl; // Uzhi no match
           G4VSplitableHadron * projectile=collision.GetProjectile();
           G4VSplitableHadron * target=collision.GetTarget();

           if ( ! theExcitation->ExciteParticipants(projectile, target) ) 
           {
//           give up, clean up
                std::vector<G4VSplitableHadron *> primaries;
                std::vector<G4VSplitableHadron *> targets;
                theParticipants.StartLoop();    // restart a loop 
                while ( theParticipants.Next() ) 
                {
                    const G4InteractionContent & interaction=theParticipants.GetInteraction();
                         //  do not allow for duplicates ...
                    if ( primaries.end() == std::find(primaries.begin(), primaries.end(), interaction.GetProjectile()) )
                        primaries.push_back(interaction.GetProjectile());

                    if ( targets.end() == std::find(targets.begin(), targets.end(),interaction.GetTarget()) ) 
                        targets.push_back(interaction.GetTarget());
                }
                std::for_each(primaries.begin(), primaries.end(), DeleteVSplitableHadron());
                primaries.clear();
                std::for_each(targets.begin(), targets.end(), DeleteVSplitableHadron());
                targets.clear();

                return false;
           }

        }
        return true;
}