nevrax.org : docs

00001 
+00007 /* Copyright, 2000-2002 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_BASE_CLIP_OBS_H
+00027 #define NL_BASE_CLIP_OBS_H
+00028 
+00029 
+00030 #include "3d/mot.h"
+00031 
+00032 
+00033 namespace NL3D 
+00034 {
+00035 
+00036 
+00037 class   IBaseHrcObs;
+00038 class   IBaseRenderObs;
+00039 class   IBaseAnimDetailObs;
+00040 class   IBaseLoadBalancingObs;
+00041 
+00042 
+00043 // ***************************************************************************
+00062 class IBaseClipObs : public IObs
+00063 {
+00064 public:
+00066         IBaseHrcObs             *HrcObs;
+00067         IBaseRenderObs  *RenderObs;
+00068         IBaseAnimDetailObs              *AnimDetailObs;
+00069         IBaseLoadBalancingObs   *LoadBalancingObs;
+00070 
+00074         bool                    Visible;
+00075 
+00076         enum TClipReason        {FrustumClip=0, DistMaxClip, countClip};
+00077 
+00078 public:
+00079         
+00080 
+00082         IBaseClipObs()
+00083         {
+00084                 HrcObs=NULL;
+00085                 RenderObs= NULL;
+00086                 Visible=false;
+00087                 _IndexInVisibleList= -1;
+00088         }
+00089         // Dtor: remove me from _VisibleList.
+00090         virtual ~IBaseClipObs();
+00091 
+00093         virtual void    init();
+00094 
+00095 
+00099         virtual bool    clip(IBaseClipObs *caller)=0;
+00100 
+00101 
+00110         virtual void    traverse(IObs *caller) =0;
+00111 
+00112 
+00117         virtual void    forceClip(TClipReason clipReason);
+00118 
+00119 
+00123         virtual bool    isTreeNode() {return false;}
+00124 
+00125 private:
+00126         friend class    CClipTrav;
+00127 
+00128         // The index of the Observer in the _VisibleList; -1 (default) means not in
+00129         sint                    _IndexInVisibleList;
+00130 };
+00131 
+00132 
+00133 // ***************************************************************************
+00146 class CDefaultClipObs : public IBaseClipObs
+00147 {
+00148 public:
+00149 
+00151         virtual bool    clip(IBaseClipObs *caller) {return true;}
+00152 
+00153 
+00155         virtual void    traverse(IObs *caller)
+00156         {
+00157                 traverseSons();
+00158         }
+00159 
+00160 };
+00161 
+00162 
+00163 } // NL3D
+00164 
+00165 
+00166 #endif // NL_BASE_CLIP_OBS_H
+00167 
+00168 /* End of base_clip_obs.h */
+