ssgLocal.h

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/*
 * ssgLocal.h
 *
 * Part of Fly! Legacy project
 *
 * Copyright 2003 Chris Wallace
 *
 * Fly! Legacy 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.
 *
 * Fly! Legacy 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 Fly! Legacy; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <plib/ssg.h>
#include "../Include/Pod.h"


#ifndef _SSGLOCAL_H_
#define _SSGLOCAL_H_

//
// Custom SSG functions
//

// ssgLoadRAW.cpp
// ssgTexture *ssgLoadTexturePBM (PODFILE* pRaw, PODFILE* pAct,
//                 ssgTextureInfo* info);

//
// class ssgKeyframeTransform
//
// This class represents a variable transform that is controlled by 
//   the value of a single scalar keyframe.  It differs from an
//   SSG Tween object in that only the transform is interpolated,
//   not any of the vertex, colour, texture coords, etc.
//
// ssgKeyframeTransform.cpp

#define _SSG_TYPE_KEYFRAMETRANSFORM   0x00008000

inline int ssgTypeKeyframeTransform()
{
  return _SSG_TYPE_KEYFRAMETRANSFORM | ssgTypeTransform();
}

typedef struct {
  float     frame;
  sgCoord   transform;
} SKeyframe;

class ssgKeyframeTransform : public ssgTransform
{
protected:
  int     nFrames;
  float   min, max;
  int     next;
  SKeyframe *data;

public:
  ssgKeyframeTransform (int n, float min = 0.0f, float max = 1.0f) ;
  virtual ~ssgKeyframeTransform (void) ;

  virtual void addKeyframe (float frame, sgCoord *xform ) ;
  virtual void setKeyframe (float frame);
};

#endif

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