GeometryCollectionExternalRenderInterface.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "UObject/Interface.h"
 
#include "GeometryCollectionExternalRenderInterface.generated.h"
 
class UGeometryCollection;
class UGeometryCollectionComponent;
 
UINTERFACE(MinimalAPI)
class UGeometryCollectionExternalRenderInterface : public UInterface
{
    GENERATED_BODY()
};
 
class IGeometryCollectionExternalRenderInterface
{
    GENERATED_BODY()
 
public:
    enum EStateFlags
    {
        EState_Visible      = 1 << 0,
        EState_Broken       = 1 << 1,
        EState_ForcedBroken = 1 << 2,
    };
 
    virtual bool ShouldUseNativeFallback(uint32 InStateFlags) const { return false; }
    virtual bool CanEverUseNativeFallback() const { return false; }
 
    virtual void OnRegisterGeometryCollection(UGeometryCollectionComponent& InComponent) = 0;
    virtual void OnUnregisterGeometryCollection() = 0;
 
    virtual void UpdateState(UGeometryCollection const& InGeometryCollection, FTransform const& InComponentTransform, uint32 InStateFlags) = 0;
 
    virtual void UpdateRootTransform(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform) = 0;
 
    virtual void UpdateRootTransforms(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform, TArrayView<const FTransform3f> InRootLocalTransforms) { check(false); };
 
    virtual void UpdateTransforms(UGeometryCollection const& InGeometryCollection, TArrayView<const FTransform3f> InTransforms) = 0;
 
    UE_DEPRECATED(5.4, "Use flags version of UpdateState instead")
    virtual void UpdateState(UGeometryCollection const& InGeometryCollection, FTransform const& InComponentTransform, bool bInIsBroken, bool bInIsVisible) 
    {
        uint32 StateFlags = 0;
        StateFlags |= bInIsVisible ? IGeometryCollectionExternalRenderInterface::EState_Visible : 0;
        StateFlags |= bInIsBroken ? IGeometryCollectionExternalRenderInterface::EState_Broken : 0;
        return UpdateState(InGeometryCollection, InComponentTransform, StateFlags);
    };
    UE_DEPRECATED(5.3, "Use FTransform version of UpdateTransforms instead")
    virtual void UpdateTransforms(UGeometryCollection const& InGeometryCollection, TArrayView<const FMatrix> InMatrices) {};
};
 
 
UINTERFACE(MinimalAPI)
class UGeometryCollectionCustomDataInterface : public UInterface
{
    GENERATED_BODY()
};
 
class IGeometryCollectionCustomDataInterface
{
    GENERATED_BODY()
 
public:
    virtual void SetCustomInstanceData(int32 CustomDataIndex, float CustomDataValue) = 0;
 
    virtual void SetCustomInstanceData(FName CustomDataName, float CustomDataValue) = 0;
};