OrbitEffect.H

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/**************************************************************
 *  Name: Sascha Becker (sab)
 *  File: OrbitEffect.H
 *  Asgn: cavewriting
 *  Date: Sun Mar 20 13:20:39 EST 2005
 **************************************************************/

#ifndef OrbitEffect_Header
#define OrbitEffect_Header

#include <DrawObj.H>
#include <IS3D.H>
#include "Word.H"
#include "Effect.H"

using namespace std; 

namespace cavewriting {

class OrbitEffect : public Effect {

public:

  OrbitEffect(Word* word, double startTime = 0, double duration = 100,
          bool startPaused = false,
          const Vector3& initialPosition = Vector3(2, 2, 2), 
          double radius = 1.0, double theta=0.0, 
          double delta = 0.01, double height = 0.0);

  virtual ~OrbitEffect();

  virtual void animate();
  static void stopAll();

  static OrbitEffect* createDefaultOrbitEffect(Word * word, bool startPaused = false);

  CoordinateFrame getCFrameAtTheta(double theta); 
  double getTheta() { return _theta; }
  void setTheta(double theta) { _theta = theta; }

protected:

  Vector3 _positionOffset;
  double _radius;
  double _theta;
  bool _firstTime;
  double _delta; // change in theta per frame
  double _height; // height; stays constant
  double _rotOffAxisX; 
  double _rotOffAxisY; 
  double _rotOffAxisZ; 


private:
  static bool _stopAll; 

};

}

#endif

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