ImplicitSurface2.h

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/*************************************************************************
> File Name: ImplicitSurface2.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: Abstract base class for 2-D implicit surface.
> Created Time: 2017/04/16
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_IMPLICIT_SURFACE2_H
#define CUBBYFLOW_IMPLICIT_SURFACE2_H

#include <Core/Surface/Surface2.h>

namespace CubbyFlow
{
    class ImplicitSurface2 : public Surface2
    {
    public:
        ImplicitSurface2(
            const Transform2& transform = Transform2(),
            bool isNormalFlipped = false);

        ImplicitSurface2(const ImplicitSurface2& other);

        virtual ~ImplicitSurface2();

        double SignedDistance(const Vector2D& otherPoint) const;

    protected:
        virtual double SignedDistanceLocal(const Vector2D& otherPoint) const = 0;

    private:
        double ClosestDistanceLocal(const Vector2D& otherPoint) const override;
    };

    using ImplicitSurface2Ptr = std::shared_ptr<ImplicitSurface2>;
}

#endif