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00001 
00007 /* Copyright, 2001 Nevrax Ltd.
00008  *
00009  * This file is part of NEVRAX NEL.
00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
00011  * it under the terms of the GNU General Public License as published by
00012  * the Free Software Foundation; either version 2, or (at your option)
00013  * any later version.
00014 
00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00018  * General Public License for more details.
00019 
00020  * You should have received a copy of the GNU General Public License
00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00023  * MA 02111-1307, USA.
00024  */
00025 
00026 #ifndef NL_QUAD_GRID_CLIP_MANAGER_H
00027 #define NL_QUAD_GRID_CLIP_MANAGER_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "nel/misc/plane.h"
00031 #include "3d/quad_grid_clip_cluster.h"
00032 #include <vector>
00033 
00034 
00035 namespace NL3D 
00036 {
00037 
00038 using   NLMISC::CVector;
00039 using   NLMISC::CPlane;
00040 
00041 
00042 class CScene;
00043 class CTransformShape;
00044 class CClipTrav;
00045 
00046 // ***************************************************************************
00053 class CQuadGridClipManager
00054 {
00055 public:
00056 
00058         CQuadGridClipManager();
00059         ~CQuadGridClipManager();
00066         void                            init(CScene *scene, float clusterSize, std::vector<float> maxDists, float radiusMax );
00067 
00069         void                            reset();
00070 
00073         void                            updateClustersFromCamera(CClipTrav *pClipTrav, const CVector &camPos);
00074 
00075 
00080         bool                            linkModel(CTransformShape *pTfmShp, CClipTrav *pClipTrav);
00081 
00082 
00083 private:
00084 
00085         // One case of clusters. Each cluster is for each maxDist clip: eg: 0-100 m, 100-500 m, 500 - +oo
00086         struct          CQuadGridClusterCase
00087         {
00088                 std::vector<CQuadGridClipCluster*>      QuadGridClipClusters;
00089         };
00090 
00091         CScene                                                  *_Scene;
00092         float                                                   _ClusterSize;
00093         float                                                   _RadiusMax;
00094         std::vector<float>                              _MaxDists;
00095         sint                                                    _X, _Y;
00096         sint                                                    _Width, _Height;
00097         std::vector<CQuadGridClusterCase>       _QuadGridClusterCases;
00098 
00099 
00100         void                            deleteCaseModels(CClipTrav *pClipTrav, sint x, sint y);
00101         void                            newCaseModels(CQuadGridClusterCase &clusterCase);
00102 
00103 };
00104 
00105 
00106 } // NL3D
00107 
00108 
00109 #endif // NL_QUAD_GRID_CLIP_MANAGER_H
00110 
00111 /* End of quad_grid_clip_manager.h */