/*!
 * @file quick_animation.h
  *  Definition of the QuickAnimation-class

*/

#ifndef _QUICK_ANIMATION_H
#define _QUICK_ANIMATION_H

#include "base_object.h"

// FORWARD DEFINITION




//! A class for that linearely interpolates between multiple values.
/**
   to be quick this only has the capability to store very little date

   this class is optimized for a raising value. eg. 100 particles sorted
   by age.
*/
class QuickAnimation : public BaseObject {

 public:

  //! a simple struct that stores keyframes for the QuickAnimation-Class.
  struct QuickKeyFrame
  {
    float            value;             //!< The starting value of this KeyFrame
    float            position;          //!< The end position of thies KeyFrame

    QuickKeyFrame*   next;              //!< The next Animation
    QuickKeyFrame*   prev;              //!< The previous QuickKeyFrame
  };

  QuickAnimation();
  virtual ~QuickAnimation();

  void addEntry(float position, float value);
  void changeEntry(float position, float value, float region = .04);

  void removeEntry(float position);
  /** @todo implemente those functions
      bool moveEntry(float position);
  */

  float getValue(float position);

  void debug();

 private:
  QuickKeyFrame*       first;          //!< The first KeyFrame in a Sequence of Keyframes.
  QuickKeyFrame*       current;        //!< The currently selected KeyFrame.
  unsigned int         count;          //!< How many Keyframes the QuickAnimation has.
};

#endif /* _QUICK_ANIMATION_H */