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OgreBspNode.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2005 The OGRE Team
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 -----------------------------------------------------------------------------
00024 */
00025 #ifndef _BspNode_H__
00026 #define _BspNode_H__
00027 
00028 #include "OgreBspPrerequisites.h"
00029 #include "OgrePlane.h"
00030 #include "OgreAxisAlignedBox.h"
00031 #include "OgreSceneQuery.h"
00032 
00033 namespace Ogre {
00034 
00048     class BspNode
00049     {
00050         friend class BspLevel;
00051 
00052     public:
00054         BspNode(BspLevel* owner, bool isLeaf);
00055 
00056         BspNode();
00057         ~BspNode();
00058 
00068         bool isLeaf(void) const;
00069 
00074         BspNode* getFront(void) const;
00075 
00080         BspNode* getBack(void) const;
00081 
00086         Plane::Side getSide (const Vector3& point) const;
00087 
00093         BspNode* getNextNode(const Vector3& point) const;
00094 
00095 
00100         const Plane& getSplitPlane(void) const;
00101 
00106         const AxisAlignedBox& getBoundingBox(void) const;
00107 
00111         int getNumFaceGroups(void) const;
00121         int getFaceGroupStart(void) const;
00122 
00129         bool isLeafVisible(const BspNode* leaf) const;
00130 
00131         friend std::ostream& operator<< (std::ostream& o, BspNode& n);
00132 
00134         void _addMovable(const MovableObject* mov);
00135 
00137         void _removeMovable(const MovableObject* mov);
00138 
00140         Real getDistance(const Vector3& pos) const;
00141 
00142         typedef std::set<const MovableObject*> IntersectingObjectSet;
00143 
00144         struct Brush
00145         {
00146             std::list<Plane> planes;
00147             SceneQuery::WorldFragment fragment; // For query reporting
00148         };
00149         typedef std::vector<Brush*> NodeBrushList; // Main brush memory held on level
00150 
00154         const NodeBrushList& getSolidBrushes(void) const;
00155     protected:
00156         BspLevel* mOwner; // Back-reference to containing level
00157         bool mIsLeaf;
00158 
00159         // Node-only members
00164         Plane mSplitPlane;
00166         BspNode* mFront;
00168         BspNode* mBack;
00169 
00170         // Leaf-only members
00182         int mVisCluster;
00183 
00185         AxisAlignedBox mBounds;
00187         int mNumFaceGroups;
00195         int mFaceGroupStart;
00196 
00197         IntersectingObjectSet mMovables;
00198 
00199         NodeBrushList mSolidBrushes;
00200     public:
00201         const IntersectingObjectSet& getObjects(void) const { return mMovables; }
00202 
00203 
00204     };
00205 
00206 
00207 }
00208 
00209 #endif

Copyright © 2000-2005 by The OGRE Team
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Last modified Sun Mar 12 14:37:37 2006