DtDynamicTerrainSequenceNode.h

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/****************************************************************************** 
** Copyright (c) 2016 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvOsg/DtMultiReferencedNodeContainer.h>

#include <vlutil/vlString.h>

#include <osg/Group>
#include <osg/Sequence>

#include <boost/unordered_map.hpp>

#include <list>

namespace osg
{
   class NodeVisitor;
}

namespace makVrv 
{
   class DT_DLL_VRVOSG DtSequenceInstanceState
   {
   public:
      // the current mode
      osg::Sequence::SequenceMode myMode;

      // This is the current animation frame
      int myValue;

      // time this frame started.
      double myStart;

      // how many times to repeat- default param is -1, repeat forever
      int myNreps;

      // set to nreps and counts down every traversal,
      // stopping when it gets to zero.
      int myNrepsRemain;
   };

   class DT_DLL_VRVOSG DtDynamicTerrainSequenceNode 
      : public osg::Sequence
      , public DtMultiReferencedNodeContainer<DtSequenceInstanceState>
   {
   public:
      DtDynamicTerrainSequenceNode();

      DtDynamicTerrainSequenceNode(const DtDynamicTerrainSequenceNode& sequence,
         const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);

      DtDynamicTerrainSequenceNode(const osg::Sequence& sequence,
         const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);

      virtual ~DtDynamicTerrainSequenceNode();

      virtual void reset( DynamicTerrain::NodePathHash hashIndex );

   protected:

      virtual void traverse(osg::NodeVisitor& nv);

      virtual void collectState( DynamicTerrain::NodePathHash hashIndex );

      virtual void instantiateState( DynamicTerrain::NodePathHash hashIndex );

   protected:
   };
}