ColliderSet.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_COLLIDER_SET_HPP
#define CUBBYFLOW_COLLIDER_SET_HPP
 
#include <Core/Array/Array.hpp>
#include <Core/Geometry/Collider.hpp>
#include <Core/Geometry/SurfaceSet.hpp>
 
#include <memory>
 
namespace CubbyFlow
{
template <size_t N>
class ColliderSet final : public Collider<N>
{
 public:
    class Builder;
 
    using Collider<N>::GetSurface;
    using Collider<N>::SetSurface;
 
    ColliderSet();
 
    explicit ColliderSet(
        const ConstArrayView1<std::shared_ptr<Collider<N>>>& others);
 
    [[nodiscard]] Vector<double, N> VelocityAt(
        const Vector<double, N>& point) const override;
 
    void AddCollider(const std::shared_ptr<Collider<N>>& collider);
 
    [[nodiscard]] size_t NumberOfColliders() const;
 
    [[nodiscard]] std::shared_ptr<Collider<N>> GetCollider(size_t i) const;
 
    static Builder GetBuilder();
 
 private:
    Array1<std::shared_ptr<Collider<N>>> m_colliders;
};
 
using ColliderSet2 = ColliderSet<2>;
 
using ColliderSet3 = ColliderSet<3>;
 
using ColliderSet2Ptr = std::shared_ptr<ColliderSet2>;
 
using ColliderSet3Ptr = std::shared_ptr<ColliderSet3>;
 
template <size_t N>
class ColliderSet<N>::Builder final
{
 public:
    Builder& WithColliders(
        const ConstArrayView1<std::shared_ptr<Collider<N>>>& others);
 
    ColliderSet Build() const;
 
    std::shared_ptr<ColliderSet<N>> MakeShared() const;
 
 private:
    Array1<std::shared_ptr<Collider<N>>> m_colliders;
};
}  // namespace CubbyFlow
 
#endif