SupportFunctions.h

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#pragma once
 
#include "DirectXMath.h"
 
#include <memory>
 
namespace nc
{
class CookedShape;
struct Vector3;
 
class SupportBuffer
{
    struct Impl;
 
    public:
        static auto GetDefault() -> SupportBuffer&;
 
        SupportBuffer();
 
        SupportBuffer(SupportBuffer&& other) noexcept;
        SupportBuffer& operator=(SupportBuffer&& other) noexcept;
        SupportBuffer(const SupportBuffer&) = delete;
        SupportBuffer& operator=(const SupportBuffer&) = delete;
        ~SupportBuffer() noexcept;
 
        auto GetImpl() -> Impl& { return *m_impl; }
    private:
        std::unique_ptr<Impl> m_impl;
};
 
auto GetWorldSupport(const CookedShape& shape,
                     const Vector3& directionNormal,
                     SupportBuffer& buffer = SupportBuffer::GetDefault()) -> Vector3;
 
auto GetWorldSupport(const CookedShape& shape,
                     DirectX::FXMVECTOR directionNormal,
                     SupportBuffer& buffer = SupportBuffer::GetDefault()) -> DirectX::XMVECTOR;
 
auto GetHalfExtent(const CookedShape& shape,
                   const Vector3& directionNormal,
                   SupportBuffer& buffer = SupportBuffer::GetDefault()) -> float;
 
auto GetHalfExtent(const CookedShape& shape,
                   DirectX::FXMVECTOR directionNormal,
                   SupportBuffer& buffer = SupportBuffer::GetDefault()) -> float;
} // namespace nc