IInterpolator.h

Go to the documentation of this file.

#pragma once

#include "swCommonLib/Common/TypesDefinitions.h"

template< typename KeyType >
struct Key;


enum class InterpolatorType : int16
{
    Discrete,
    Linear,
    Cosinus,
    Bezier
};



template< typename KeyType >
class IInterpolator
{
private:
protected:
public:
    explicit        IInterpolator   () = default;
    virtual         ~IInterpolator  () = default;

    virtual KeyType         Interpolate     ( TimeType time, Key< KeyType >& left, Key< KeyType >& right )  = 0;

    virtual void            Update          ( const Key< KeyType >& leftKey,
                                              const Key< KeyType >& rightKey,
                                              UPtr< const IInterpolator< KeyType > >& leftInterpolator,
                                              UPtr< const IInterpolator< KeyType > >& rightInterpolator )   = 0;

    virtual KeyType         LeftTangent     ( const Key< KeyType >& left, const Key< KeyType >& right ) const = 0;
    virtual KeyType         RightTangent    ( const Key< KeyType >& left, const Key< KeyType >& right ) const = 0;
};


template< typename KeyType >
class DummyInterpolator : public IInterpolator< KeyType >
{
private:
protected:
public:

    virtual KeyType         Interpolate     ( TimeType time, Key< KeyType >& left, Key< KeyType >& right ) { return KeyType(); }

    virtual void            Update          ( const Key< KeyType >& leftKey,
                                              const Key< KeyType >& rightKey,
                                              UPtr< const IInterpolator< KeyType > >& leftInterpolator,
                                              UPtr< const IInterpolator< KeyType > >& rightInterpolator )
    {}

    virtual KeyType         LeftTangent     ( const Key< KeyType >& left, const Key< KeyType >& right ) const { return KeyType(); }
    virtual KeyType         RightTangent    ( const Key< KeyType >& left, const Key< KeyType >& right ) const { return KeyType(); }
};