/* 
   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: Benjamin Grauer
   co-programmer: ...
*/


#include "animation.h"
#include "debug.h"
#include "list.h"


Anim::Anim(void)
{
  // create a new List
  this->keyFrameList = new tList<AnimKeyFrame>();
  
  // initialize a beginning KeyFrame, that will be deleted afterwards
  this->bHasKeys = false;


  this->animFunc = &Anim::random;
}


Anim::~Anim(void)
{
  // delete all the KeyFrames
  tIterator<AnimKeyFrame>* itKF = keyFrameList->getIterator();
  AnimKeyFrame*  enumKF = itKF->nextElement();
  while (enumKF)
    {
      delete enumKF;
      enumKF = itKF->nextElement();
    }
  delete itKF;
  delete this->keyFrameList;
}

tList<Anim>* Anim::animatorList = NULL;


void Anim::addKeyFrame(float value, float duration, ANIM_FUNCTION animFunc)
{
  if (!bHasKeys)
    {
      this->keyFrameList->remove(this->keyFrameList->firstElement());
      bHasKeys = true;
    }
  AnimKeyFrame* tmpKeyFrame = new AnimKeyFrame;
  tmpKeyFrame->value = value;
  tmpKeyFrame->duration = duration;
  tmpKeyFrame->animFunc = animFunc;
  
  this->keyFrameList->add(tmpKeyFrame);
}

void Anim::setInfinity(ANIM_INFINITY preInfinity, ANIM_INFINITY postInfinity)
{
  this->preInfinity = preInfinity;
  this->postInfinity = postInfinity;
}

void Anim::setAnimFunc(ANIM_FUNCTION animFunc)
{
  switch (animFunc)
    {
    default:
    case ANIM_CONSTANT:
      this->animFunc = &Anim::constant;
      break;
    case ANIM_LINEAR:
      this->animFunc = &Anim::linear;
      break;
    case ANIM_RANDOM:
      this->animFunc = &Anim::random;
      break;
    case ANIM_SINE:
      this->animFunc = &Anim::sine;
      break;

    }
}


// animation functions
float Anim::random(float time)
{
  return (float)rand()/(float)RAND_MAX;
}

float Anim::constant(float time)
{

}

float Anim::linear(float time)
{

}

float Anim::sine(float time)
{

}