CollectionKinematicBindingFacade.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "GeometryCollection/ManagedArrayAccessor.h"
#include "GeometryCollection/ManagedArrayCollection.h"
#include "GeometryCollection/Facades/CollectionSelectionFacade.h"
 
namespace GeometryCollection::Facades
{
    class FKinematicBindingFacade
    {
    public:
 
        typedef GeometryCollection::Facades::FSelectionFacade::FSelectionKey FBindingKey;
 
        //
        // Kinematics
        //
        static CHAOS_API const FName KinematicGroup;
        static CHAOS_API const FName KinematicBoneBindingIndex;
        static CHAOS_API const FName KinematicBoneBindingToGroup;
 
        CHAOS_API FKinematicBindingFacade(FManagedArrayCollection& InCollection);
        CHAOS_API FKinematicBindingFacade(const FManagedArrayCollection& InCollection);
 
        CHAOS_API void DefineSchema();
 
        bool IsConst() const { return Collection==nullptr; }
 
        CHAOS_API bool IsValid() const;
 
        //
        //  Skeletal Mesh Bone Bindings
        //
        CHAOS_API FBindingKey SetBoneBindings(const int32 BoneIndex, const TArray<int32>& Vertices, const TArray<float>& Weights);
        CHAOS_API void GetBoneBindings(const FBindingKey& Key, int32& OutBoneIndex, TArray<int32>& OutBoneVerts, TArray<float>& OutBoneWeights) const;
 
        CHAOS_API int32 AddKinematicBinding(const FBindingKey& Key);
        int32 NumKinematicBindings() const { return KinemaitcBoneBindingAttribute.Num(); }
        CHAOS_API FBindingKey GetKinematicBindingKey(int Index) const;
 
    private:
        const FManagedArrayCollection& ConstCollection;
        FManagedArrayCollection* Collection = nullptr;
 
        TManagedArrayAccessor<int32> KinemaitcBoneBindingAttribute;
        TManagedArrayAccessor<FString> KinemaitcBoneBindingToGroupAttribute;
    };
}