---

c:/home/kevn/src/animaniac/ani/Dynamics/operators/GrimReaperOperator.h

Go to the documentation of this file.

#ifndef _OPERATIONS_H
#define _OPERATIONS_H

#include <vector>
#include <gmtl/Vec.h>
#include <gmtl/VecOps.h>

namespace ani
{
   template<class __EntityType>
   class GrimReaperOperator : public ani::Operator<__EntityType>
   {
   public:
      typedef boost::shared_ptr<__EntityType> EntityTypePtr;

   public:
      GrimReaperOperator() : ani::Operator<__EntityType>() {}
      virtual ~GrimReaperOperator() {}
      virtual void exec( DynamicSystem<__EntityType>& ps, float timeDelta );
   };

   template <class __EntityType>
   void GrimReaperOperator<__EntityType>::exec(  DynamicSystem<__EntityType>& ps, float timeDelta )
   {
      std::vector<EntityTypePtr>& psList = ps.entities();
      std::vector<EntityTypePtr>::iterator it;
      std::list< std::vector<EntityTypePtr>::iterator > deadList;
      for (it = psList.begin(); it != psList.end(); ++it)
      {
         // age the particle
         EntityTypePtr p = *it;
         p->growOlder( ps.timeDelta() );

         // if the particle is dead, then queue it for removal...
         if (p->age() >= p->ageOfDeath() && p->ageOfDeath() >= 0.0f)
         {
            deadList.push_back( it );
         }
      }

      // now delete the dead ones...
      std::list< std::vector<EntityTypePtr>::iterator >::reverse_iterator deadListIt;
      for (deadListIt = deadList.rbegin(); deadListIt != deadList.rend(); ++deadListIt)
      {
         //ps.remove( (*deadListIt) );

         EntityTypePtr p = *(*deadListIt);
         p->isInSystem( false );
         ps.entities().erase( (*deadListIt) );
      }
   }
} // end namespace

#endif

---