text: //-------------------------------------------------------------------------
  /*
  Copyright (C) 1997, 2005 - 3D Realms Entertainment
  
  This file is part of Shadow Warrior version 1.2
  
  Shadow Warrior is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  See the GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  
  Original Source: 1997 - Frank Maddin and Jim Norwood
  Prepared for public release: 03/28/2005 - Charlie Wiederhold, 3D Realms
  */
  //-------------------------------------------------------------------------
  
  #ifndef INTERPSO_H
  #define INTERPSO_H
  
  #include "mfile.h"
  
  BEGIN_SW_NS
  
  extern int32_t so_numinterpolations;
  
  void so_addinterpolation(SECTOR_OBJECTp sop);
  void so_setspriteinterpolation(SECTOR_OBJECTp sop, spritetype *sp);
  void so_stopspriteinterpolation(SECTOR_OBJECTp sop, spritetype *sp);
  void so_setinterpolationangdiff(SECTOR_OBJECTp sop, int16_t angdiff);
  void so_setinterpolationtics(SECTOR_OBJECTp sop, int16_t locktics);
  void so_updateinterpolations(void);
  void so_dointerpolations(int32_t smoothratio);
  void so_restoreinterpolations(void);
  SWBOOL so_writeinterpolations(MFILE_WRITE fil);
  SWBOOL so_readinterpolations(MFILE_READ fil);
  
  END_SW_NS
  
  #endif
  