// Author: Romain Holzmann
// Written: 8/11/2002
// Modified: 8/11/2002 R.H.
// PFileInput Class Header

#ifndef _PFileInput_H_
#define _PFileInput_H_

#include "PParticle.h"
#include "PChannel.h"

class PFileInput: public PParticle {

private:

 protected:
    Int_t imode;      //  mode (HGeant=1, QMD=2, BUU=3)
    Char_t *name;     //! input generator name
    Char_t *file;     //! input file name
    PParticle **part; //! array of particle pointers
    FILE *fp;         //! input file pointer
    Int_t flag;       //! event header flag

 public:
    PFileInput(Char_t *mode, Char_t *filename);
    
    void setToMidrapidity(float agev);
    Int_t IsFileInput() { 
	return 1; 
    } 
    Int_t readEventHeader(Float_t &b);
    Int_t readParticle(Double_t &px, Double_t &py, Double_t &pz, Double_t &E,
		       Double_t &vx, Double_t &vy, Double_t &vz, Double_t &vt,
		       Int_t &Id, Int_t &srcId, Int_t &parId, Int_t &parInd, Double_t &weight);
    PChannel *makeChannel(Int_t nMax, Float_t Ebeam=0.);
    virtual void Print(const Option_t *delme=NULL) const;
    virtual ~PFileInput() {
	if (fp) fclose(fp);
    }
    
    ClassDef(PFileInput,1) // Pluto file input
};

#endif // _PFileInput_H_