#ifndef TMCDigit_hxx_seen
#define TMCDigit_hxx_seen

#include <set>
#include <TROOT.h>
#include <IPAIDeltaRay.hxx>

namespace COMET {
  class IMCDigit;
  class IG4VHit;
}

/// An abstract base class for digits generated by the MC.  This is multiply
/// inherited by objects for each of the detector digit types.
class COMET::IMCDigit 
{
public:
    /// Contributor list type
    typedef std::set<IG4VHit*> ContributorContainer;
    /// Contributor list type
    typedef std::set<COMET::IPAIDeltaRay> PAIContributorContainer;

    IMCDigit ();
    virtual ~IMCDigit();

    /// Construct a digit for a particular channel and cycle number.
    explicit IMCDigit(const COMET::IMCDigit::ContributorContainer& contrib);
    explicit IMCDigit(const COMET::IMCDigit::PAIContributorContainer& contrib) ;

    /// Return the MC information for the raw MC hits that contributed to this
    /// digit.
    virtual const ContributorContainer& GetContributors() const {
        return fContributors;
    }
    virtual const PAIContributorContainer& GetPAIContributors() const {
        return fPAIContributors;
    }

protected: 
    /// The MC hits that contributed to this digit.
    ContributorContainer fContributors;
    PAIContributorContainer fPAIContributors;

};
#endif