nevrax.org : docs

00001 
+00007 /* Copyright, 2000 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_HRC_TRAV_H
+00027 #define NL_HRC_TRAV_H
+00028 
+00029 #include "3d/trav_scene.h"
+00030 #include "nel/misc/matrix.h"
+00031 #include "nel/misc/debug.h"
+00032 
+00033 
+00034 namespace       NL3D
+00035 {
+00036 
+00037 
+00038 using NLMISC::CVector;
+00039 using NLMISC::CPlane;
+00040 using NLMISC::CMatrix;
+00041 
+00042 
+00043 class   IBaseHrcObs;
+00044 class   CSkipModel;
+00045 class   IBaseClipObs;
+00046 class   IBaseAnimDetailObs;
+00047 
+00048 // ***************************************************************************
+00049 // ClassIds.
+00050 const NLMISC::CClassId          HrcTravId=NLMISC::CClassId(0x5ad56382, 0x2a711530);
+00051 
+00052 
+00053 // ***************************************************************************
+00064 class CHrcTrav : public ITravScene
+00065 {
+00066 public:
+00068         enum    TVisibility
+00069         {
+00070                 Show=0,         // The model is shown in hte hierarchy
+00071                 Hide,           // The model is hidden in hte hierarchy
+00072                 Herit,          // The model herit the visibilty from his father
+00073 
+00074                 VisibilityCount
+00075         };
+00076 
+00077 public:
+00078 
+00080         CHrcTrav()
+00081         {
+00082                 // NB: Now, observers update is done before ALL traversals.
+00083                 // Hence, we must inc the value before scene rendering. This is equivalent to start with 1, and inc at end of traverse().
+00084                 CurrentDate= 1;
+00085         }
+00086 
+00087 
+00089 
+00090         IObs                            *createDefaultObs() const;
+00091         NLMISC::CClassId        getClassId() const {return HrcTravId;}
+00092         sint                            getRenderOrder() const {return 1000;}
+00093         void                            traverse();
+00095 
+00096 
+00097 public:
+00098 
+00099         std::vector<IModel*> _MovingObjects;
+00100 
+00101         // ONLY FOR OBSERVERS.
+00102 
+00103         sint64          CurrentDate;    // The current date of the traversal, usefull for matrix update.
+00104 };
+00105 
+00106 
+00107 
+00108 // ***************************************************************************
+00126 class IBaseHrcObs : public IObs
+00127 {
+00128 public:
+00130         IBaseClipObs            *ClipObs;
+00131         IBaseAnimDetailObs      *AnimDetailObs;
+00132 
+00133 public:
+00134 
+00135 
+00137 
+00138         CMatrix         LocalMatrix;
+00139         CHrcTrav::TVisibility   LocalVis;       // The visibility state of the node.
+00140         sint64          LocalDate;                              // The update date of the LocalMatrix.
+00142 
+00143 
+00145 
+00146         CMatrix         WorldMatrix;
+00147         bool            WorldVis;                       // Is the node visible? (enabled?)
+00148         sint64          WorldDate;                      // The update date of the WorldMatrix.
+00150 
+00151 
+00152 public:
+00153         
+00154 
+00156         IBaseHrcObs()
+00157         {
+00158                 LocalVis= CHrcTrav::Herit; LocalMatrix.identity(); LocalDate=0;
+00159                 WorldVis= true; WorldMatrix.identity(); 
+00160                 // Init the WorldDate to -1 so at first pass, LocalDate>WorldDate, and so
+00161                 // the model will be processed and so it'll may be inserted in LightingManager (for example)
+00162                 WorldDate=-1;
+00163         }
+00165         virtual void    init();
+00166 
+00167         
+00169 
+00170 
+00171         virtual void    traverse(IObs *caller) =0;
+00173 
+00174 
+00176         // @{
+00178         virtual void    addParent(IObs *father);
+00179         // @}
+00180 
+00181 };
+00182 
+00183 
+00184 // ***************************************************************************
+00196 class CDefaultHrcObs : public IBaseHrcObs
+00197 {
+00198 public:
+00199 
+00200 
+00202         CDefaultHrcObs() {}
+00203 
+00204 
+00206         virtual void    traverse(IObs *caller)
+00207         {
+00208                 // DoIt the sons.
+00209                 traverseSons();
+00210         }
+00211 
+00212 
+00213 };
+00214 
+00215 
+00216 }
+00217 
+00218 
+00219 #endif // NL_HRC_TRAV_H
+00220 
+00221 /* End of hrc_trav.h */
+