#ifndef ALIMCANALYSISUTILS_H
#define ALIMCANALYSISUTILS_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice     */
/* $Id:  $ */

//_________________________________________________________________________
// Class for analysis utils for MC data
// stored in stack or event header.
// Contains:
//  - method to check the origin of a given track/cluster
//  - method to obtain the generated jets
//
//*-- Author: Gustavo Conesa (INFN-LNF)

// --- ROOT system ---
#include <TObject.h> 
class TString ;
class TList ;

//--- AliRoot system ---
class AliStack ;
class AliGenEventHeader ;

class AliMCAnalysisUtils : public TObject {
	
public: 
	
	AliMCAnalysisUtils() ; // ctor
	AliMCAnalysisUtils(const AliMCAnalysisUtils & g) ; // cpy ctor
	AliMCAnalysisUtils & operator = (const AliMCAnalysisUtils & g) ;//cpy assignment
	virtual ~AliMCAnalysisUtils() ;//virtual dtor
	
	enum mcTypes {kMCPrompt, kMCFragmentation, kMCISR, kMCPi0Decay, kMCEtaDecay, kMCOtherDecay, kMCPi0, kMCEta, kMCElectron, kMCConversion, kMCUnknown};
	
	Int_t CheckOrigin(const Int_t label, AliStack *  stack) const ;
	TList * GetJets(Int_t iEvent, AliStack *  stack, AliGenEventHeader * geh) ;
	
	void Print(const Option_t * opt)const;
  	
	void SetDebug(Int_t deb) {fDebug=deb;}
	Int_t GetDebug() const {return fDebug;}	
	
	void SetMCGenerator(TString mcgen) {fMCGenerator=mcgen;}
	TString GetMCGenerator() const {return fMCGenerator;}	

private:
	Int_t   fCurrentEvent; // Current Event
	Int_t	fDebug;        // Debug level
	TList * fJetsList;      // List of jets
	TString fMCGenerator;  // MC geneator used to generate data in simulation

	ClassDef(AliMCAnalysisUtils,1)
} ;


#endif //ALIMCANALYSISUTILS_H