/*! 
    \file animation3d.h
*/


#include "animation.h"

#include "vector.h"
class PNode;

#define DELTA_X_3D 0.05  //!< the percentag of the distance that doesnt have to be done by neg_exp (asymptotical) ~ maschinendelta

//! KeyFrame3D Struct
/**
   This represents one point with direction of the animation
*/
typedef struct KeyFrame3D {
  float duration;                   //!< The duration of this KeyFrame
  Vector position;                  //!< The position of this KeyFrame
  Vector lastPosition;
  Quaternion direction;             //!< The direction of this KeyFrame
  ANIM_FUNCTION animFuncMov;        //!< with whitch function to iterate movement to the next KeyFrame3D
  ANIM_FUNCTION animFuncRot;        //!< with whitch function to iterate rotation to the next KeyFrame3D
};

//! Animation Struct
/**
   This represents an animation for a object
*/
class Animation3D : public Animation
{
 public:
  Animation3D(PNode* object);
  virtual ~Animation3D(void);
    
  virtual void rewind(void);

  void addKeyFrame(Vector position, Quaternion direction, float time, ANIM_FUNCTION animFuncMov = ANIM_DEFAULT_FUNCTION, ANIM_FUNCTION animFuncRot = ANIM_NULL);
  //  void addKeyFrame(KeyFrame3D* frame);

  virtual void tick(float dt);
 
 private:
  // animation functions
  void setAnimFuncMov(ANIM_FUNCTION animFunc);
  void setAnimFuncRot(ANIM_FUNCTION animFunc);
  void mConstant(float timePassed) const;
  void mLinear(float timePassed) const;
  void mSine(float timePassed) const;
  void mCosine(float timePassed) const;
  void mExp(float timePassed) const;
  void mNegExp(float timePassed) const;
  void mQuadratic(float timePassed) const;
  void mRandom(float timePassed) const;
  void rConstant(float timePassed) const;
  void rLinear(float timePassed) const;
  void rSine(float timePassed) const;
  void rCosine(float timePassed) const;
  void rExp(float timePassed) const;
  void rNegExp(float timePassed) const;
  void rQuadratic(float timePassed) const;
  void rRandom(float timePassed) const;
  //  ANIM_FUNCTION animFunc;
  void (Animation3D::*animFuncMov)(float) const;      //!< A Function for the AnimationType
  void (Animation3D::*animFuncRot)(float) const;      //!< A Function for the AnimationType

  KeyFrame3D* currentKeyFrame;                     //!< The current KeyFrame
  KeyFrame3D* nextKeyFrame;                        //!< The KeyFrame we iterate to
  tList<KeyFrame3D>* keyFrameList;                 //!< The KeyFrameList

  // more class-local description
  PNode* object;                                   //!< The Object from which to Animate something
  Vector lastPosition;   //!< ??
  Vector tmpVect;        //!< what for??
  float deltaT;          //!< ??
  float expFactorMov;
  float expFactorRot;
};