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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_EDGE_QUAD_H
00027 #define NL_EDGE_QUAD_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "nel/misc/aabbox.h"
00031 #include "pacs/exterior_mesh.h"
00032 #include "pacs/collision_surface_temp.h"
00033 #include <vector>
00034 
00035 namespace NLMISC
00036 {
00037         class   IStream;
00038 };
00039 
00040 namespace NLPACS 
00041 {
00042 class   CGlobalRetriever;
00043 
00044 using   NLMISC::CVector;
00045 using   NLMISC::IStream;
00046 
00047 // ***************************************************************************
00048 struct EEdgeQuad : public NLMISC::Exception
00049 {
00050         EEdgeQuad(const std::string &reason) : Exception(reason) { }
00051 };
00052 
00053 
00054 // ***************************************************************************
00061 class CEdgeQuad
00062 {
00063 public:
00064 
00066         CEdgeQuad();
00068         CEdgeQuad(const CEdgeQuad &o);
00070         ~CEdgeQuad();
00072         CEdgeQuad &operator=(const CEdgeQuad &o);
00073 
00075         void                    clear();
00076 
00077 
00079         void                    build(const CExteriorMesh &em,
00080                                                   const CGlobalRetriever &global,
00081                                                   CCollisionSurfaceTemp &cst,
00082                                                   uint32 thisInstance);
00083 
00084 
00091         sint                    selectEdges(const NLMISC::CAABBox &bbox, CCollisionSurfaceTemp &cst) const;
00092 
00100         sint                    selectEdges(CVector start, CVector end, CCollisionSurfaceTemp &cst) const;
00101 
00102 
00104         const std::vector<CExteriorEdgeEntry>   &getEdgeEntries() const { return _EdgeEntries; }
00106         const CExteriorEdgeEntry                                &getEdgeEntry(uint entry) const { return _EdgeEntries[entry]; }
00107 
00108 
00110         void                                                            serial(NLMISC::IStream &f);
00111 
00113         void                                                            removeLinks(sint32 instanceId)
00114         {
00115                 uint    i;
00116                 for (i=0; i<_EdgeEntries.size(); ++i)
00117                 {
00118                         if (_EdgeEntries[i].Exterior.RetrieverInstanceId == instanceId)
00119                         {
00120                                 _EdgeEntries[i].Exterior.RetrieverInstanceId = -1;
00121                                 _EdgeEntries[i].Exterior.SurfaceId = -1;
00122                         }
00123                 }
00124         }
00125 
00127         void                                                            removeLinks()
00128         {
00129                 uint    i;
00130                 for (i=0; i<_EdgeEntries.size(); ++i)
00131                 {
00132                         _EdgeEntries[i].Exterior.RetrieverInstanceId = -1;
00133                         _EdgeEntries[i].Exterior.SurfaceId = -1;
00134                 }
00135         }
00136 
00137 // **************************
00138 private:
00139 
00143         std::vector<uint8*>                             _Quad;
00145         std::vector<CExteriorEdgeEntry> _EdgeEntries;
00147         uint32                                                  _Width;
00149         uint32                                                  _Height;
00151         sint32                                                  _X, _Y;
00153         uint8                                                   *_QuadData;
00155         uint32                                                  _QuadDataLen;
00156 
00157 
00158         static const    float   _QuadElementSize;       // = 4 meters.
00159 
00160 
00161 private:
00162 
00163         // get local integer bounds in the grid.
00164         void                    getGridBounds(sint32 &x0, sint32 &y0, sint32 &x1, sint32 &y1, const CVector &minP, const CVector &maxP) const;
00165 
00166 };
00167 
00168 
00169 } // NLPACS
00170 
00171 
00172 #endif // NL_CHAIN_QUAD_H
00173 
00174 /* End of chain_quad.h */
edge_quad.h
