entityTerrainGeometryHandle.h

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/*******************************************************************************
** Copyright (c) 2017 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include <vantageTerrainImplementation/vantageTerrainImplementationDefines.h>
#include <vantageTerrainImplementation/bvhTriangleMeshShape.h>
#include <vantageTerrainImplementation/simModelRepository.h>
#include <terrainInterface/terrainImplementation.h>

#include <vrvCore/DtDynamicTerrainWorld.h>
#include <vrvUtil/DtDynamicTerrainFeature.h>

#include <vector>
#include <boost/unordered_map.hpp>
#include <tbb/spin_mutex.h>

class DtPoint;
class DtTaitBryan;

class DT_DLL_vantageTerrainImplementation DtEntityTerrainGeometryHandle : public DtTerrainGeometryHandle
{
public:
   class DT_DLL_vantageTerrainImplementation CollisionObject : public DtBvhCollisionObject
   {
   public:
      typedef boost::shared_ptr<CollisionObject> Ptr;

      CollisionObject();

      bool enabled() const;

      void incrementEnableCount();
      void decrementEnableCount();

   protected:
      tbb::atomic<unsigned> myEnableCount;
   };

   class DT_DLL_vantageTerrainImplementation DynamicFeature : public makVrv::DtDynamicTerrainFeature
   {
   public:
      explicit DynamicFeature(const DtPoint& location, double radius);

      ~DynamicFeature();

      DtString description() const;

      bool matches(const makVrv::DtDynamicTerrainChange&, bool useOriginalGeometry = false) const;
      bool matches(const makVrv::DtDynamicTerrainGeometry&, bool useOriginalGeometry = false) const;

      const makVrv::DtDynamicTerrainGeometry* geometry() const;
      const makVrv::DtDynamicTerrainGeometry* originalGeometry() const;

      bool isInDefaultState() const;
      bool lastStateWasDefaultState() const;
      void changeState(const makVrv::DtDynamicTerrainChanges& history);
      void iterateCommands(const boost::function<void(const makVrv::DtDynamicTerrainChange&)>&) const;

      void setToDefaultState();

      makVrv::DtDynamicTerrainChange* createChange() const;

   protected:
      makVrv::DtDynamicTerrainGeometry* myGeometry;
      makVrv::DtDynamicTerrainGeometry* myOriginalGeometry;

      tbb::atomic<bool> myDefaultStateFlag;
   };

   typedef std::vector<CollisionObject::Ptr> CollisionObjectVector;
   typedef boost::unordered_map<DtAppearance, CollisionObjectVector> AppearanceMap;

   explicit DtEntityTerrainGeometryHandle(DtVantageTerrainEngine& engine, const DtFilename& model);

   ~DtEntityTerrainGeometryHandle();

   bool isValid() const;


   bool isDisabled() const;
   void disable();
   void setAppearance(DtAppearance app);
   void setPosition(const DtPoint& location, const DtDcm& orientation);

protected:
   virtual CollisionObjectVector& loadAppearance(DtAppearance flags);

   virtual void setupDynamicFeature(const DtPoint& location, double radius);
   void destroyDynamicFeature();

   mutable tbb::spin_mutex myMutex;

   DtVantageTerrainEngine& myVantageTerrainEngine;
   const DtFilename myFile;

   boost::optional<DtAppearance> myCurrentAppearance;
   boost::optional<DtPoint> myCurrentLocation;
   boost::optional<DtDcm> myCurrentOrientation;

   boost::shared_ptr<DynamicFeature> myFeature;
   makVrv::DtDynamicTerrainWorld::FeatureHandle myFeatureHandle;
   makVrv::DtDynamicTerrainWorld::RequestHandle myRequestHandle;

   AppearanceMap myAppearanceMap;
};