sinkToDepthActuator.h

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/*******************************************************************************
** Copyright (c) 2013 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once

#include <vlpi/disEnums.h>
#include <vrfmodel/fallingFromSkyActuatorComponent.h>
#include "vrfmodel/vrfmodelDefines.h"


class DT_DLL_vrfmodel DtSinkToDepthActuator : public DtFallingFromSkyActuatorComponent
{
public:
   DtSinkToDepthActuator(const DtString& name, 
      DtVrfObject* owner,
      DtSimManager* simManager, 
      DtComponentDescriptor* desc = 0,
      DtReaderWriterRegistry* parentRegistry = 0);


   virtual ~DtSinkToDepthActuator();
   
   virtual const char* type() const;

   enum
   {
      DtSinkStateInitial,
      DtSinkStateFalling,
      DtSinkStateRising
   };

   virtual void tick();

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


protected:
   virtual void computeTerrainSituation();

   virtual double waterDragCoefficient() const;


   virtual void sinkInWater();

   virtual void riseInWater();

   virtual double waterDragAccelerationFromSpeed(double curSpeed) const;

protected:
   virtual double riseRate(){ return 5.0; }

   DtSinkToDepthActuator();

   DtSinkToDepthActuator(const DtSinkToDepthActuator & orig);

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

protected:
   int myFallingState;
   bool myUnderwater;
};