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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_CLUSTER_H
00027 #define NL_CLUSTER_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "nel/misc/plane.h"
00031 #include "nel/misc/aabbox.h"
00032 
00033 #include "3d/transform.h"
00034 
00035 #include <vector>
00036 
00037 namespace NLMISC
00038 {
00039 class CRGBA;
00040 class IStream;
00041 struct EStream;
00042 }
00043 
00044 namespace NL3D {
00045 
00046 
00047 class CPortal;
00048 class CClusterClipObs;
00049 class CInstanceGroup;
00050 
00051 const NLMISC::CClassId  ClusterId=NLMISC::CClassId(0x13f37e46, 0x3e880780);
00052 
00062 class CCluster : public CTransform
00063 {
00064 
00065 public:
00066 
00067         static void registerBasic ();
00068         
00069 public:
00070 
00071         CCluster();
00072 
00073         ~CCluster();
00074 
00080         bool makeVolume (NLMISC::CVector& p1, NLMISC::CVector& p2, NLMISC::CVector& p3);
00081         
00082         
00084         void applyMatrix(const NLMISC::CMatrix &m);
00085 
00089         bool isIn (NLMISC::CVector& p);
00090 
00094         bool isIn (NLMISC::CAABBox& b);
00095 
00099         bool isIn (NLMISC::CVector& center, float size);
00100 
00101         NLMISC::CAABBox& getBBox() { return _BBox; }
00102         
00104 
00105         // reset all links to portals.
00106         void resetPortalLinks ();
00107 
00108         void link (CPortal* portal);
00109         void unlink (CPortal* portal);
00110 
00111         uint32 getNbPortals() {return _Portals.size();}
00112         CPortal* getPortal(uint32 pos) {return _Portals[pos];}
00113 
00114         CClusterClipObs *getClipObs();
00115 
00117 
00118         void serial (NLMISC::IStream& f);
00119 
00120         void setWorldMatrix (const NLMISC::CMatrix &WM);
00121 
00122         // Moving cluster
00123         CQuadGrid<CCluster*>::CIterator AccelIt;
00124 
00125         // Additionnal properties
00126         std::string Name;
00127         bool FatherVisible;
00128         bool VisibleFromFather;
00129         CCluster *Father;
00130         std::vector<CCluster*> Children;
00131         CInstanceGroup *Group;
00132 
00133         bool isRoot() { return _LocalVolume.size() == 0; }
00134 
00135         
00136 private:
00137 
00138         static IModel *creator () {return new CCluster;}
00139 
00140 private:
00141 
00143         CClusterClipObs *_Obs;
00144 
00146         std::vector<CPortal*>   _Portals;
00147 
00151         NLMISC::CAABBox _LocalBBox;
00153         std::vector<NLMISC::CPlane> _LocalVolume;
00154 
00157         NLMISC::CAABBox _BBox;
00159         std::vector<NLMISC::CPlane> _Volume;
00160 private:
00161         // This unlink this cluster from its sons and its parents
00162         void    unlinkFromClusterTree();
00163         //              unlink this cluster from its parent
00164         void    unlinkFromParent();
00165         //              unlink this cluster sons
00166         void    unlinkSons();
00167 
00168 
00170         friend class CInstanceGroup;
00171 };
00172 
00180 class CClusterHrcObs : public CTransformHrcObs
00181 {
00182 
00183 public:
00184 
00185         virtual void traverse (IObs *caller);
00186 
00187         static IObs     *creator () {return new CClusterHrcObs;}
00188 
00190         friend class CCluster;
00191 };
00192 
00200 class CClusterClipObs : public IBaseClipObs
00201 {
00202 
00203 public:
00204         CClusterClipObs();
00205         
00207         virtual bool clip (IBaseClipObs *caller);
00208 
00210         virtual void traverse (IObs *caller);
00211 
00212 private:
00213 
00214         bool Visited;
00215 
00216 private:
00217 
00218         static IObs *creator () {return new CClusterClipObs;}
00219 
00221         friend class CCluster;
00222 };
00223 
00224 
00225 } // NL3D
00226 
00227 
00228 #endif // NL_CLUSTER_H
00229 
00230 /* End of cluster.h */