/* 
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   This program 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, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Patrick Boenzli
   co-programmer: 
*/

/*! 
    \file abstract_model.h
    \brief Definition of an abstract model. containing all needed for other model
*/

#ifndef _ABSTRACT_MODEL_H
#define _ABSTRACT_MODEL_H

#include "stdincl.h"
#include "base_object.h"
#include <vector>
#include <math.h>
#include <SDL_image.h>

using namespace std;



//! this is a small and performant 3D vector
typedef float sVec3D[3];


//! small and performant 2D vector
typedef float sVec2D[2];


//! compressed vertex data: char insetead of float, the value will be expanded by the scale value. only for loading
typedef struct
{
  byte             v[3];                 //!< the vector of the vertex
  unsigned char    lightNormalIndex;     //!< the index of the light normal
} sVertex;


//! compressed texture offset data: coords scaled by the texture size. Only for loading
typedef struct
{
  short            s;                    //!< the s,t coordinates of a texture
  short            t;                    //!< the s,t coordinates of a texture
} sTexCoor;


//! holds tha informations about a md2 frame
typedef struct
{
  sVec3D           scale;                //!< scales values of the model
  sVec3D           translate;            //!< translates the model
  char             name[16];             //!< frame name: something like "run32"
  sVertex          pVertices[1];         //!< first vertex of thes frame
} sFrame;


//! holds the information about a triangle
typedef struct
{
  short            indexToVertices[3];   //!< index to the verteces of the triangle
  short            indexToTexCoor[3];    //!< index to the texture coordinates
} sTriangle;


//! the command list of the md2 model, very md2 specific
typedef struct
{
  float            s;                    //!< texture coordinate 1
  float            t;                    //!< texture coordinate 2
  int              vertexIndex;          //!< index of the vertex in the vertex list
} glCommandVertex;


//! a md2 animation definition
typedef struct
{
  int              firstFrame;           //!< first frame of the animation
  int              lastFrame;            //!< last frame of the animation
  int              fps;                  //!< speed: number of frames per second
} sAnim;


//! animation state definition
typedef struct
{
  int              startFrame;           //!< the start frame of an animation
  int              endFrame;             //!< last frame of the animation
  int              fps;                  //!< fps of the animaion (speed)

  float            localTime;            //!< the local time
  float            lastTime;             //!< last time stamp
  float            interpolationState;   //!< the state of the animation [0..1]
  
  int              type;                 //!< animation type

  int              currentFrame;         //!< the current frame
  int              nextFrame;            //!< the next frame in the list
} sAnimState;


//! This class defines the basic components of a model
class AbstractModel : public BaseObject {

 public:
  AbstractModel() {}
  virtual ~AbstractModel() {}
};




#endif /* _ABSTRACT_MODEL_H */