OgreTerrainPagedWorldSection.h

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/*
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This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2012 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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*/

#ifndef __Ogre_TerrainPagedWorldSection_H__
#define __Ogre_TerrainPagedWorldSection_H__

#include "OgreTerrainPrerequisites.h"
#include "OgrePagedWorldSection.h"
#include "OgrePageManager.h"



namespace Ogre
{
    class Grid2DPageStrategy;
    class Grid2DPageStrategyData;
    class TerrainGroup;

    class _OgreTerrainExport TerrainPagedWorldSection : public PagedWorldSection
    {
    public:
        TerrainPagedWorldSection(const String& name, PagedWorld* parent, SceneManager* sm);
        ~TerrainPagedWorldSection();

        virtual void init(TerrainGroup* grp);

        virtual TerrainGroup* getTerrainGroup() { return mTerrainGroup; }

        virtual void setLoadRadius(Real sz);
        virtual Real getLoadRadius() const;
        virtual void setHoldRadius(Real sz);
        virtual Real getHoldRadius();
        virtual void setPageRange(int32 minX, int32 minY, int32 maxX, int32 maxY);
        virtual void setPageRangeMinX(int32 minX);
        virtual void setPageRangeMinY(int32 minY);
        virtual void setPageRangeMaxX(int32 maxX);
        virtual void setPageRangeMaxY(int32 maxY);
        virtual int32 getPageRangeMinX() const;
        virtual int32 getPageRangeMinY() const;
        virtual int32 getPageRangeMaxX() const;
        virtual int32 getPageRangeMaxY() const;

        virtual Grid2DPageStrategy* getGridStrategy() const;
        virtual Grid2DPageStrategyData* getGridStrategyData() const;

        void loadPage(PageID pageID, bool forceSynchronous = false);
        void unloadPage(PageID pageID, bool forceSynchronous = false);

    protected:
        TerrainGroup* mTerrainGroup;

        void loadSubtypeData(StreamSerialiser& ser);
        void saveSubtypeData(StreamSerialiser& ser);

        virtual void syncSettings();

    };





}

#endif