SurfaceToImplicit.hpp

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// This code is based on Jet framework.
// Copyright (c) 2018 Doyub Kim
// CubbyFlow is voxel-based fluid simulation engine for computer games.
// Copyright (c) 2020 CubbyFlow Team
// Core Part: Chris Ohk, Junwoo Hwang, Jihong Sin, Seungwoo Yoo
// AI Part: Dongheon Cho, Minseo Kim
// We are making my contributions/submissions to this project solely in our
// personal capacity and are not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef CUBBYFLOW_SURFACE_TO_IMPLICIT_HPP
#define CUBBYFLOW_SURFACE_TO_IMPLICIT_HPP
 
#include <Core/Geometry/ImplicitSurface.hpp>
 
#include <memory>
 
namespace CubbyFlow
{
template <size_t N>
class SurfaceToImplicit final : public ImplicitSurface<N>
{
 public:
    class Builder;
 
    using ImplicitSurface<N>::transform;
    using ImplicitSurface<N>::isNormalFlipped;
 
    SurfaceToImplicit(std::shared_ptr<Surface<N>> surface,
                      const Transform<N>& _transform = Transform<N>{},
                      bool _isNormalFlipped = false);
 
    ~SurfaceToImplicit() override = default;
 
    SurfaceToImplicit(const SurfaceToImplicit& other);
 
    SurfaceToImplicit(SurfaceToImplicit&& other) noexcept;
 
    SurfaceToImplicit& operator=(const SurfaceToImplicit& other);
 
    SurfaceToImplicit& operator=(SurfaceToImplicit&& other) noexcept;
 
    void UpdateQueryEngine() override;
 
    [[nodiscard]] bool IsBounded() const override;
 
    [[nodiscard]] bool IsValidGeometry() const override;
 
    [[nodiscard]] std::shared_ptr<Surface<N>> GetSurface() const;
 
    static Builder GetBuilder();
 
 protected:
    [[nodiscard]] Vector<double, N> ClosestPointLocal(
        const Vector<double, N>& otherPoint) const override;
 
    [[nodiscard]] double ClosestDistanceLocal(
        const Vector<double, N>& otherPoint) const override;
 
    [[nodiscard]] bool IntersectsLocal(
        const Ray<double, N>& ray) const override;
 
    [[nodiscard]] BoundingBox<double, N> BoundingBoxLocal() const override;
 
    [[nodiscard]] Vector<double, N> ClosestNormalLocal(
        const Vector<double, N>& otherPoint) const override;
 
    [[nodiscard]] double SignedDistanceLocal(
        const Vector<double, N>& otherPoint) const override;
 
    [[nodiscard]] SurfaceRayIntersection<N> ClosestIntersectionLocal(
        const Ray<double, N>& ray) const override;
 
 private:
    std::shared_ptr<Surface<N>> m_surface;
};
 
using SurfaceToImplicit2 = SurfaceToImplicit<2>;
 
using SurfaceToImplicit3 = SurfaceToImplicit<3>;
 
using SurfaceToImplicit2Ptr = std::shared_ptr<SurfaceToImplicit2>;
 
using SurfaceToImplicit3Ptr = std::shared_ptr<SurfaceToImplicit3>;
 
template <size_t N>
class SurfaceToImplicit<N>::Builder final
    : public SurfaceBuilderBase<N, typename SurfaceToImplicit<N>::Builder>
{
 public:
    Builder& WithSurface(const std::shared_ptr<Surface<N>>& surface);
 
    SurfaceToImplicit Build() const;
 
    std::shared_ptr<SurfaceToImplicit> MakeShared() const;
 
 private:
    using Base = SurfaceBuilderBase<N, typename SurfaceToImplicit<N>::Builder>;
    using Base::m_isNormalFlipped;
    using Base::m_transform;
 
    std::shared_ptr<Surface<N>> m_surface;
};
}  // namespace CubbyFlow
 
#endif