OgreBspNode.h

Go to the documentation of this file.

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

Copyright (c) 2000-2005 The OGRE Team
Also see acknowledgements in Readme.html

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
-----------------------------------------------------------------------------
*/
#ifndef _BspNode_H__
#define _BspNode_H__

#include "OgreBspPrerequisites.h"
#include "OgrePlane.h"
#include "OgreAxisAlignedBox.h"
#include "OgreSceneQuery.h"

namespace Ogre {

    class BspNode
    {
        friend class BspLevel;

    public:
        BspNode(BspLevel* owner, bool isLeaf);

        BspNode();
        ~BspNode();

        bool isLeaf(void) const;

        BspNode* getFront(void) const;

        BspNode* getBack(void) const;

        Plane::Side getSide (const Vector3& point) const;

        BspNode* getNextNode(const Vector3& point) const;


        const Plane& getSplitPlane(void) const;

        const AxisAlignedBox& getBoundingBox(void) const;

        int getNumFaceGroups(void) const;
        int getFaceGroupStart(void) const;

        bool isLeafVisible(const BspNode* leaf) const;

        friend std::ostream& operator<< (std::ostream& o, BspNode& n);

        void _addMovable(const MovableObject* mov);

        void _removeMovable(const MovableObject* mov);

        Real getDistance(const Vector3& pos) const;

        typedef std::set<const MovableObject*> IntersectingObjectSet;

        struct Brush
        {
            std::list<Plane> planes;
            SceneQuery::WorldFragment fragment; // For query reporting
        };
        typedef std::vector<Brush*> NodeBrushList; // Main brush memory held on level

        const NodeBrushList& getSolidBrushes(void) const;
    protected:
        BspLevel* mOwner; // Back-reference to containing level
        bool mIsLeaf;

        // Node-only members
        Plane mSplitPlane;
        BspNode* mFront;
        BspNode* mBack;

        // Leaf-only members
        int mVisCluster;

        AxisAlignedBox mBounds;
        int mNumFaceGroups;
        int mFaceGroupStart;

        IntersectingObjectSet mMovables;

        NodeBrushList mSolidBrushes;
    public:
        const IntersectingObjectSet& getObjects(void) const { return mMovables; }


    };


}

#endif

---

Copyright © 2000-2005 by The OGRE Team

This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Mar 12 14:37:37 2006