DtTemporaryAgentManager.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#ifndef DtTemporaryEffectsManager_H_
#define DtTemporaryEffectsManager_H_

#include <vrvCore/vrvCore.h>

#include <queue>
#include <vrvUtil/signalslib.h>

#include <matrix/vlVector.h>

namespace makVrv
{

   class DtAgent;
   class DtAgentManagerInterface;

   class DT_DLL_VRVCORE DtTemporaryAgentManager
   {
   public:

      DtTemporaryAgentManager(double currentTime);

      virtual ~DtTemporaryAgentManager();

      virtual void takeAgent(DtAgent* agent, double lifeTime, 
         double deleteDelay = 0.0);

      void clearAll();

      virtual void tick(double currentTime);

      boost::signalslib::signal<void (DtAgent*)> signal_agentTimedOut;

      struct AgentParameters
      {
         DtAgent* agent;
         double timeToDelete;

      };

   protected:
    
      // first item is the one with the soonest exp time
      typedef std::priority_queue < AgentParameters, std::vector<AgentParameters>, std::greater<AgentParameters> > AgentCollection;

      AgentCollection myAgents;
      double myLastTime;
   };

   inline bool operator > (const DtTemporaryAgentManager::AgentParameters& lhs, const DtTemporaryAgentManager::AgentParameters& rhs)
   {
      return lhs.timeToDelete > rhs.timeToDelete;
   }

}

#endif