ClusterLink.h

#ifndef MCMD_CLUSTER_LINK_H
#define MCMD_CLUSTER_LINK_H

/*
* Simpatico - Simulation Package for Polymeric and Molecular Liquids
*
* Copyright 2010 - 2017, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/

namespace McMd
{

   class Molecule;
   class Cluster;

   struct ClusterLink
   {

   public:

      void clear();

      void setMolecule(Molecule& molecule);

      Molecule& molecule() const;

      ClusterLink* next() const;

      int clusterId() const;

   private:

      Molecule* moleculePtr_;

      ClusterLink* next_;

      int clusterId_;

      friend class Cluster;

   };

   // Set ClusterLink to default null state.
   inline 
   void ClusterLink::clear()
   {
      moleculePtr_ = 0;  
      next_ = 0;  
      clusterId_ = -1;  
   }

   // Set pointer to associated Molecule.
   inline
   void ClusterLink::setMolecule(Molecule& molecule)
   {  moleculePtr_ = &molecule;  }

   // Get the associated molecule by reference.
   inline
   Molecule& ClusterLink::molecule() const
   {  return *moleculePtr_; }

   // Get a pointer to the next link.
   inline
   ClusterLink* ClusterLink::next() const
   {  return next_; }

   // Get the id of the associated cluster.
   inline
   int ClusterLink::clusterId() const
   {  return clusterId_; }

}
#endif