entityCollision.h

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/*******************************************************************************
** Copyright (c) 2004 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: entityCollision.h,v $ $Revision: 1.8 $ $State: Exp $
*******************************************************************************/
#ifndef entityCollision_H_
#define entityCollision_H_


#include "vrfobjcore/collision.h"
#include <matrix/vlVector.h>
#include "vrfobjcore/vrfObjMgr.h"
#include <vlutil/vlSmartPointers.h>

class DtString;

#include "vrfobjcore/vrfobjcoreDefines.h"
class DT_DLL_vrfobjcore DtEntityCollision : public DtCollision
{

public:

   DtEntityCollision(DtSimManager& simManager, 
                     DtEntityIdentifier entityID,
                     double distanceSquared);

   virtual ~DtEntityCollision();

   virtual DtCollisionObjectType collisionType() const;

   DtEntityCollision(const DtEntityCollision& original);

   DtEntityCollision& operator=(const DtEntityCollision& original);

   bool operator==(const DtCollision& collision) const;
   bool operator!=(const DtCollision& collision) const;

   bool operator==(const DtEntityCollision& collision) const;
   bool operator!=(const DtEntityCollision& collision) const;
   
   bool valid() const;

   DtEntityIdentifier obstructionEntityID() const ;

   void setObstructionEntityID(const DtEntityIdentifier& entityID);

   DtVector obstructionLocation() const;
   
   DtVector obstructionVelocity() const;
   
   bool intersectsPoint(const DtVector& localPosition) const;
   
   const Dt3dBoundingVolume& obstructionBoundingVolume() const;
   Dt3dBoundingVolume& obstructionBoundingVolume();

   void setDistanceSquared(double distanceSquared);
   double distanceSquared() const;
   //void addDistance(double extraDistance);
   
   virtual const DtDcm& obstructionLocalOrientationMatrix() const;

   bool testInvariant() const;

   void setSimulationManager(DtSimManager& simManager);

   DtSimManager* simulationManager();
   const DtSimManager* simulationManager() const;

   //fixme - this was merged in from trunk but conflicted with collision avoidance
   //static void objectAboutToBeRemovedCallback(DtVrfObject* object, void* usr);
   //virtual void processObjectAboutToBeRemoved(DtVrfObject* object);

protected:
   DtEntityIdentifier myObstructionEntityID;
   
   DtSimManager*  mySimulationManager;

   static Dt3dBoundingVolume nullBoundingVolume;

private:
   mutable DtVrfObject* myObject;

   double myDistanceSquared;
};

typedef DtBoost::shared_ptr<DtEntityCollision> DtEntityCollisionSharedPtr;

#endif