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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 */
+