HitProcess.h

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#ifndef HIT_PROCESS_H
#define HIT_PROCESS_H 1

// gemc headers
#include "detector.h"
#include "Hit.h"
#include "outputFactory.h"
#include "options.h"



class trueInfos
{
    public:
        trueInfos(MHit*);
        ~trueInfos(){;}
    
        unsigned int nsteps;
        double eTot;
        double x, y, z;
        double lx, ly, lz;
        double time;
};



class HitProcess
{
    public:
        virtual ~HitProcess(){;}
        void init(string name, goptions go,map<string, double> gp)
        {
            HCname    = name;
            gemcOpt   = go;
            gpars     = gp;
            verbosity = gemcOpt.optMap["HIT_VERBOSITY"].arg;
            log_msg   = "  > " + HCname + "  Hit Process ";
            init_subclass();
        }
            
        // local initializations
        // init_subclass is used at the END of the event level
        // by the hit process routine
        // NOTICE:
        // Variables in the processID of the sensitive detector
        // should be initialized in the CONSTRUCTOR of the class
        virtual void init_subclass() {;}
        
        // - integrateRaw: returns geant4 raw information integrated over the hit
        // - add the info in the bank if INTEGRATEDRAW is TRUE
        map<string, double> integrateRaw(MHit*, int, bool);
        
        // - allRaws: returns all geant4 raw information step by step\n\n
        // this is not virtual, its declared in hitProcess.cc and common to all
        map< string, vector <double> > allRaws(MHit*, int);
        
        // - integrateDgt: returns digitized information integrated over the hit
        virtual map<string, double> integrateDgt(MHit*, int) = 0;
        
        // - signalVT: returns a V(t) function
        virtual map< double, double > signalVT(MHit*, int) ;
        
        // - multiDgt: returns multiple digitized information / hit
        virtual map< string, vector <int> > multiDgt(MHit*, int) = 0;
        
        // The pure virtual method processID returns a (new) identifier
        // containing hit sharing information
        virtual vector<identifier> processID(vector<identifier>, G4Step*, detector) = 0;
        
    protected:
        
        // hit collection name
        string HCname;
        goptions gemcOpt;
        map<string, double> gpars;
        double verbosity;
        string log_msg;
                
        // signal parameters
        double par[4];
    
        inline double DGauss(double x, double *par, double Edep, double stepTime)
        {
            double t0   = par[0] + stepTime;     // delay + start time of signal so that peak is t0 + rise. 
            double rise = par[1]/3;              // rise time, equal to sigma of first gaussian.
            double fall = par[2]/3;              // fall time, equal to sigma of second gaussian
            double ampl = Edep*par[3]/2;         // amplitude of the signal mV/MeV - divided by 2 cause it's 2 gaussians
            
            double peak = t0 + 3*rise;
            
//          cout << t0 << " " << rise << " " << fall << " " << ampl << " " << peds <<
//           peds - ampl*exp(-0.5*pow((x-peak)/rise, 2)) - ampl*exp(-0.5*pow((x-peak)/fall, 2)) << endl;
            
            return  - ampl*exp(-0.5*pow((x-peak)/rise, 2)) - ampl*exp(-0.5*pow((x-peak)/fall, 2));
        }
};

// Define HitProcess as a pointer to a function that returns a pointer
typedef HitProcess *(*HitProcess_Factory)();

// Return HitProcess from the Hit Process Map
HitProcess *getHitProcess(map<string, HitProcess_Factory> *hitProcessMap, string);

// returns the list of Hit Factories registered
set<string> getListOfHitProcessHit(map<string, HitProcess_Factory>);





#endif