ConvexFeature.h

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// Copyright Epic Games, Inc.All Rights Reserved.
#pragma once
 
#include "Chaos/Core.h"
#include "Chaos/Collision/ContactPoint.h"
 
namespace Chaos::Private
{
    // The type of a convex feature
    enum class EConvexFeatureType : int8
    {
        Unknown,
        Vertex,
        Edge,
        Plane
    };
 
    // Information used to identify a feature on a convex shape
    class FConvexFeature
    {
    public:
        // An index used to index into some collection (e.g., triangle index in a mesh)
        int32 ObjectIndex;
 
        // The plane index on the convex. E.g., See FConvex::GetPlane()
        int32 PlaneIndex;
 
        // For Vertex or Edge features this is either:
        // - the vertex index on the plane if PlaneIndex is set (see FConvex::GetPlaneVertex()), or
        // - the absolute vertex index if PlaneIndex is INDEX_NONE (see FConvex::GetVertex())
        int32 PlaneFeatureIndex;
 
        // The feature type
        EConvexFeatureType FeatureType;
    };
}