movementBasedTerrainPreloadController.h

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/*******************************************************************************
** Copyright (c) 2022 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include "vrfmodel/vrfmodelDefines.h"
#include "vrfobjcore/controllerComponent.h"
#include "vrfobjcore/vrfObjectTerrainPreloadManager.h"
#include "vrfobjcore/movementLocalObjectFacade.h"

#include "features/featureSet.h"
#include "features/areaFeature.h"

class DtMovementBasedTerrainPreloadControllerDescriptor;

class DT_DLL_vrfmodel DtMovementBasedTerrainPreloadController : 
   public DtControllerComponent
{

private:

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

public:

   DtMovementBasedTerrainPreloadController(const DtString& name, 
      DtLocalObject* owner, 
      DtSimulationServices* simManager, 
      DtComponentDescriptor* desc = 0,
      DtReaderWriterRegistry* parentRegistry = 0);

   virtual ~DtMovementBasedTerrainPreloadController() override;

   virtual bool init() override;

   virtual const char* type() const override;

   static void calculateTerrainPreLoadCallback(
      DtVrfObjectTerrainPreloadArgs& args, void* usr);
   
   virtual void calculateTerrainPreLoad(DtVrfObjectTerrainPreloadArgs& args);

   virtual void enable() override;

   virtual void disable() override;

   static DtSimComponent * creator(const DtString& name, 
      DtLocalObject* owner,
      DtSimulationServices* simManager, 
      DtComponentDescriptor* desc = 0,
      DtReaderWriterRegistry* parentRegistry = 0);

protected:
   const DtMovementBasedTerrainPreloadControllerDescriptor* myDescriptor;

   DtPoint myLastPosition;
   double myLastSpeed;
   double myLastLookaheadRadius;
   DtMovementLocalObjectFacade myMovementLocalObjectFacade;
};