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morphingEngine.h

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#ifndef MORPHING_ENGINE_H
#define MORPHING_ENGINE_H

#include <vector>

#include "engine.h"
#include <animal/vec3.h>

namespace animal {

template< class Morphings, class Real = float >
class MorphingEngine : public Engine
{
  protected:
    typedef typename Morphings::Key Key;
    typedef typename Morphings::Values Values;
  
  public:
    MorphingEngine();

    virtual ~MorphingEngine();
  
    //===============================================================
    
    virtual void reset();
  
    virtual void move(double dt);
    
    virtual void draw(){}
    
    //===============================================================
    //=========== Setters============================================
    void setCurrentKey(Key k);
    
    void setVelocity(Real v){ _velocity = v ; }
    
    void toggleCatmullRomMethod(bool b);
    void toggleLinearMethod(bool b);
    
    void setMorphings(Morphings * k){ _morphings = k; }
    
    void setInitialKey(Key k){ _initialKey = k; }
    //===============================================================
    //=========== Getters============================================
    int * getInterpolationID(){ return &_interpolationID; }
    
    Real * getVelocity(){ return &_velocity; }
    
    Morphings * getMorphings(){ return _morphings; }
    
    Key * getInitialKey(){ return &_initialKey; }
    //===============================================================
    
  protected:
    bool computeInterpolatedValues(Key key);
    
    bool searchRange(const Key key, Key & key0, Key & key1);
    
  private: 
    void printMorphings();
  
    bool begin(Key & key);
  
    bool searchKeys(const Key key, Key & key0, Key & key1, Key & key2, Key & key3);

    bool computeLinearInterpolation(const Key key);
  
    bool computeCatmullRomInterpolation(const Key key);
    
  
  protected: // Members
    
    Values * _positions;
  
    Morphings * _morphings;    
  
    int _interpolationID;

    Key _currentKey;
    
    Key _initialKey;
    
    Real _velocity;
   
    
}; // class Morphing

} // namespace animal

#endif //MORPHING_ENGINE_H

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