nel/tools/3d/object_viewer/ps_initial_pos.h

   1 // NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #ifndef NL_PS_INITIAL_POS
  18 #define NL_PS_INITIAL_POS
  19
  20 namespace NL3D
  21 {
  22         class CParticleSystem;
  23         class CPSLocated;
  24         class CPSLocatedBindable;
  25         struct IPSMover;
  26 }
  27
  28
  29 /** this class helps to copy the position of initial instances in a particle
  30  *  system. This enable a system to run, and have its parameter modified.
  31  *  When the user press stop, he will find the system at t = 0, with the new parameters
  32  */
  33 class CPSInitialPos
  34 {
  35 public:
  36         CPSInitialPos() : _PS(NULL) {}
  37         // construct this by copying the datas of the system
  38         void copySystemInitialPos(NL3D::CParticleSystem *ps);
  39         /** reinitialize the system with its initial instances positions
  40           * Works only once per copySystemInitialPos() call
  41           */
  42         void restoreSystem();
  43         /// send back true when bbox display is enabled
  44         bool isBBoxDisplayEnabled();
  45         /// update data when a located in a particle system has been removed
  46         void removeLocated(NL3D::CPSLocated *loc);
  47         /// update data when a located bindable in a particle system has been removed
  48         void removeLocatedBindable(NL3D::CPSLocatedBindable *lb);
  49         // initial position and speed of a located instance in a particle system
  50         struct CInitPSInstanceInfo
  51         {
  52                 uint32 Index;
  53                 NL3D::CPSLocated *Loc;
  54                 NLMISC::CVector Speed;
  55                 NLMISC::CVector Pos;
  56         };
  57         // rotation and scale of an element
  58         struct CRotScaleInfo
  59         {
  60                 uint32 Index;
  61                 NL3D::CPSLocated *Loc;
  62                 NL3D::CPSLocatedBindable *LB;
  63                 NL3D::IPSMover *Psm;
  64                 NLMISC::CMatrix Rot;
  65                 NLMISC::CVector Scale;
  66         };
  67         NL3D::CParticleSystem *getPS() { return _PS; }
  68         const NL3D::CParticleSystem *getPS() const { return _PS; }
  69         bool isStateMemorized() const { return _PS != NULL; }
  70 private:
  71         typedef std::vector<CInitPSInstanceInfo> TInitInfoVect;
  72         typedef std::vector<CRotScaleInfo> TRotScaleInfoVect;
  73         typedef std::vector< std::pair<NL3D::CPSLocated *, uint32> > TInitialLocatedSizeVect;
  74         TInitInfoVect _InitInfoVect;
  75         TRotScaleInfoVect _RotScaleInfoVect;
  76         // initial number of instances for each located
  77         TInitialLocatedSizeVect  _InitialSizeVect;
  78         NL3D::CParticleSystem *_PS;
  79         // reset all initial infos
  80         void reset();
  81 };
  82
  83
  84
  85
  86
  87 #endif