Entity State Repository Extension

The MyEntityStateRep class contains the new mass variable

---

Header file:

/*******************************************************************************
** Copyright (c) 2007 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: myEsr.h,v $ $Revision: 1.8 $ $State: Exp $
*******************************************************************************/

#pragma once

#if DtHLA

#include <vrfExtObjects/extEntSR.h>

#include <stdio.h>

//Because this example adds a concept that did not already exist in VR-Link's
//DtEntityStateRepository class, we create this subclass of
//DtEntityStateRepository that adds the concept of mass.

class MyEntityStateRep : public DtExtEntityStateRepository
{
public:
   MyEntityStateRep()
   : DtExtEntityStateRepository()
   , myMass(0.)
   {
   }

   MyEntityStateRep(const MyEntityStateRep& o)
   : DtExtEntityStateRepository(o)
   , myMass(o.myMass)
   {
   }

   //Set/Get the value of mass
   virtual void setMass(float mass);
   virtual float mass() const;
   
   //Virtual function override: print the state rep's data.
   virtual void printData() const;

public:
   
   //Create a MyEntityStateRep.  Caller is reponsible for deletion.
   static DtExtEntityStateRepository* create();
   
   //Copy shallow (false) or deep (true).
   virtual DtStateRepository* clone(bool copy = false) const;
   
protected:

   float myMass;
};

//Inline functions

inline void MyEntityStateRep::setMass(float temp)
{
   myMass = temp;
}

inline float MyEntityStateRep::mass() const
{
   return myMass;
}

inline void MyEntityStateRep::printData() const
{
   DtEntityStateRepository::printData();
   printf("Mass: %lf\n", mass());
}

inline DtExtEntityStateRepository* MyEntityStateRep::create()
{
   return new MyEntityStateRep();
}

inline DtStateRepository* MyEntityStateRep::clone(bool copy) const
{
   if (copy)
   {
      return new MyEntityStateRep(*this);
   }
   else
   {
      return new MyEntityStateRep();
   }
}

#endif