PBDTriangleMeshIntersections.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "Chaos/Core.h"
#include "Chaos/PBDSoftsEvolutionFwd.h"
#include "Chaos/PBDTriangleMeshCollisions.h"
#include "Chaos/CollectionPropertyFacade.h"
 
// Resolve intersections via contour minimization. Contour Minimization data is calculated in PBDTriangleMeshCollisions.
namespace Chaos::Softs
{
class FPBDTriangleMeshIntersections
{
public:
    static bool IsEnabled(const FCollectionPropertyConstFacade& PropertyCollection)
    {
        return FPBDTriangleMeshCollisions::IsEnabled(PropertyCollection);
    }
 
    FPBDTriangleMeshIntersections(
        const int32 InOffset,
        const int32 InNumParticles,
        const FTriangleMesh& InTriangleMesh
    )
        :TriangleMesh(InTriangleMesh)
        , Offset(InOffset)
        , NumParticles(InNumParticles)
    {}
 
    ~FPBDTriangleMeshIntersections() = default;
 
    template<typename SolverParticlesOrRange>
    CHAOS_API void Apply(SolverParticlesOrRange& Particles, const TArray<FPBDTriangleMeshCollisions::FContourMinimizationIntersection>& Intersections, const FSolverReal Dt) const;
 
private:
    const FTriangleMesh& TriangleMesh;
    int32 Offset;
    int32 NumParticles;
};
 
}  // End namespace Chaos::Softs