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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_PS_FACE_LOOK_AT_H
+00027 #define NL_PS_FACE_LOOK_AT_H
+00028 
+00029 #include "3d/ps_particle_basic.h"
+00030 #include "3d/ps_quad.h"
+00031 #include "3d/ps_iterator.h"
+00032 
+00033 namespace NL3D 
+00034 {
+00035 
+00036 
+00037 class CPSFaceLookAt;
+00038 
+00039 
+00046 class CPSFaceLookAt :   public CPSQuad
+00047                                           , public CPSRotated2DParticle
+00048                                         
+00049 {
+00050 public:
+00054         CPSFaceLookAt(CSmartPtr<ITexture> tex = NULL);
+00055         
+00056         void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
+00057         
+00058         NLMISC_DECLARE_CLASS(CPSFaceLookAt);
+00059                         
+00066         void activateMotionBlur(float coeff = 1.f, float threshold = 1.f)
+00067         {
+00068                 _MotionBlurCoeff = coeff;
+00069                 _Threshold = threshold;
+00070         }
+00071 
+00073         void setMotionBlurCoeff(float coeff) { _MotionBlurCoeff = coeff; }
+00074 
+00076         void setMotionBlurThreshold(float threshold) { _Threshold = threshold; }
+00077 
+00078 
+00079 
+00083         float getMotionBlurCoeff(void) const { return _MotionBlurCoeff; }
+00084 
+00086         float getMotionBlurThreshold(void) const { return _Threshold; }
+00087 
+00092         void setIndependantSizes(bool enable  = true) { _IndependantSizes = enable; }
+00093 
+00095         bool hasIndependantSizes(void) const { return _IndependantSizes; }
+00096 
+00098         CPSSizedParticle &getSecondSize(void) 
+00099         { 
+00100                 nlassert(_IndependantSizes);
+00101                 return _SecondSize;
+00102         }
+00103 
+00105         const CPSSizedParticle &getSecondSize(void) const
+00106         { 
+00107                 nlassert(_IndependantSizes);
+00108                 return _SecondSize;
+00109         }
+00110         
+00111 protected:
+00112         friend class                    CPSFaceLookAtHelper;    
+00113         float                                   _MotionBlurCoeff;       
+00114         float                                   _Threshold; // motion blur theshold
+00115         // in this struct we defines the getSizeOwner method, which is abstract in the CPSSizedParticle clas
+00116         struct                                  CSecondSize : public CPSSizedParticle
+00117         {
+00118                 CPSFaceLookAt *Owner;
+00119                 virtual CPSLocated *getSizeOwner(void) { return Owner->getOwner(); }
+00120         } _SecondSize;
+00121         bool                                    _IndependantSizes;              
+00122         virtual void                    draw(bool opaque);
+00123         void                                    newElement(CPSLocated *emitterLocated, uint32 emitterIndex);    
+00124         void                                    deleteElement(uint32);
+00125         void                                    resize(uint32);
+00126         virtual CPSLocated              *getAngle2DOwner(void) { return _Owner; }
+00127 
+00128 };
+00129 
+00130 
+00131 } // NL3D
+00132 
+00133 #endif // NL_PS_FACE_LOOK_AT_H
+00134 
+00135 /* End of ps_face_look_at.h */
+