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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_PARTICLE_SYSTEM_PROCESS_H
00027 #define NL_PARTICLE_SYSTEM_PROCESS_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "nel/misc/stream.h"
00031 #include "nel/3d/animation_time.h"
00032 
00033 namespace NLMISC
00034 {
00035         class CAABBox ;
00036 }
00037 
00038 namespace NL3D {
00039 
00040 
00041 class CParticleSystem ;
00042 class CFontGenerator ;
00043 class CFontManager ;
00044 
00045 
00053 enum TPSProcessPass 
00054 { PSEmit, PSCollision, PSMotion, PSSolidRender, PSBlendRender, PSToolRender } ;
00055 
00056 
00057 
00062 class CParticleSystemProcess : public NLMISC::IStreamable
00063 {
00064         public:
00065         
00069                         CParticleSystemProcess() : _Owner(NULL), _SystemBasisEnabled(false) {}
00070                         
00072                         virtual ~CParticleSystemProcess()  {}
00073 
00078                         virtual void                    serial(NLMISC::IStream &f) throw(NLMISC::EStream) ;                                     
00080 
00081                 
00086                 virtual void                    step(TPSProcessPass pass, TAnimationTime ellapsedTime, TAnimationTime realEt) = 0 ;
00087 
00088 
00093                 virtual bool                    computeBBox(NLMISC::CAABBox &aabbox) const = 0 ;
00094 
00096                 void                                    setOwner(CParticleSystem *ps) 
00097                 { 
00098                         if (ps == NULL)
00099                         {
00100                                 releaseAllRef();
00101                         }
00102                         _Owner = ps ; 
00103                 }
00104 
00106                 CParticleSystem                 *getOwner(void) { return _Owner ; }
00107 
00109                 const CParticleSystem   *getOwner(void) const { return _Owner ; }
00110 
00115                 virtual void                     releaseRefTo(const CParticleSystemProcess *other) = 0;
00116 
00120                 virtual void                     releaseAllRef() = 0;
00121 
00123 
00124 
00125                         CFontGenerator                  *getFontGenerator(void) ;
00126 
00128                         const CFontGenerator    *getFontGenerator(void) const ;
00129 
00131                         CFontManager                    *getFontManager(void) ;
00132 
00134                         const CFontManager              *getFontManager(void) const ;
00136 
00140                 bool                                    isInSystemBasis(void) const 
00141                 { 
00142                         return _SystemBasisEnabled ; 
00143                 }
00144 
00149                 virtual void                    setSystemBasis(bool sysBasis = true) { _SystemBasisEnabled = sysBasis ; }
00150         
00152                 virtual bool                    hasParticles(void) const { return false ; }
00153 
00155                 virtual bool                    hasEmitters(void) const { return false ; }
00156 
00157 
00159                 virtual uint                    querryMaxWantedNumFaces(void) = 0 ;
00160 
00161 
00162                 
00164                 virtual bool             isParametricMotionEnabled(void) const { return false;}
00165 
00167                 virtual void performParametricMotion(TAnimationTime date,
00168                                                                                          TAnimationTime ellapsedTime,
00169                                                                                          TAnimationTime realEllapsedTime) { nlassert(0);}
00170 
00172                 virtual void updateLife(TAnimationTime ellapsedTime) = 0;
00173                         
00174         protected:
00175                 CParticleSystem *_Owner ;
00176 
00177                 // true if the system basis is used for display and motion
00178                 bool _SystemBasisEnabled ;
00179         
00180 } ;
00181 
00182 
00183 } // NL3D
00184 
00185 
00186 #endif // NL_PARTICLE_SYSTEM_PROCESS_H
00187 
00188 /* End of particle_system_process.h */