railObstructionFinder.h

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/*******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include "vrfmodel/vrfmodelDefines.h"
#include "vrfutil/railSegment.h"
#include <list>
#include "vrfobjcore/entityCollision.h"
#include "vrfmodel/railObstructionInfo.h"
#include <vrfutil/rwEntityTypeList.h>

#include <matrix/vlVector.h>

class DtVrfObjectManager;
class DtPhysicalWorld;
class DtCollisionDetector;
class DtLocalObject;

class DT_DLL_vrfmodel DtRailObstructionFinder
{
public:

   DtRailObstructionFinder(DtVrfObjectManager* objMgr, DtPhysicalWorld* world,
      DtLocalObject* hostEntity);
   virtual ~DtRailObstructionFinder();

   virtual void init(const DtRwEntityTypeList & passableObjectTypes);

   virtual void findObstructions(const DtRailSegmentList& rail, const DtVector& point,
      double distance, std::list<DtRailObstructionPtr>& result);

protected:
   virtual bool fillObstructionList(const DtRailSegmentList& rail, const DtVector& startPoint,
      double testDistance, std::list<DtRailObstructionPtr>& collisionList);

   virtual bool findObstructionsAlongSegment(const DtRailSegment* segment, double testAltitude,
      double distFromSegStart, double testDistance, std::list<DtRailObstructionPtr>& collisionList);

   virtual void mergeObstructions(const std::list<DtRailObstructionPtr>& sourceList,
      std::list<DtRailObstructionPtr>& destiatnionList, double adjustmentDistance);

private:

   DtRailObstructionFinder();
   DtRailObstructionFinder(const DtRailObstructionFinder& orig);
   DtRailObstructionFinder& operator=(const DtRailObstructionFinder& orig);

protected:
   DtVrfObjectManager* myObjectManager;
   DtPhysicalWorld* myPhysicalWorld;
   DtCollisionDetector* myCollisionDetector;
   DtLocalObject* myHostEntity;
};