MovieSceneDataLayerSystem.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Templates/SharedPointer.h"
#include "UObject/ObjectKey.h"
#include "Containers/Map.h"
#include "EntitySystem/MovieSceneEntitySystem.h"
#include "EntitySystem/MovieSceneCachedEntityFilterResult.h"
#include "MovieSceneDataLayerSystem.generated.h"
 
class UDataLayerManager;
 
namespace UE
{
namespace MovieScene
{
 
struct FDesiredLayerStates;
struct FPreAnimatedDataLayerStorage;
 
} // namespace MovieScene
} // namespace UE
 
 
UCLASS(MinimalAPI)
class UMovieSceneDataLayerSystem
    : public UMovieSceneEntitySystem
{
public:
 
    GENERATED_BODY()
 
    UMovieSceneDataLayerSystem(const FObjectInitializer& ObjInit);
 
private:
 
    virtual bool IsRelevantImpl(UMovieSceneEntitySystemLinker* InLinker) const override;
    virtual void OnLink() override;
    virtual void OnRun(FSystemTaskPrerequisites& InPrerequisites, FSystemSubsequentTasks& Subsequents) override final;
 
    UDataLayerManager* GetDataLayerManager(UE::MovieScene::FMovieSceneEntityID EntityID, UE::MovieScene::FRootInstanceHandle RootInstance);
    void UpdateDesiredStates();
    void BeginTrackingEntities();
 
private:
 
    UE::MovieScene::FCachedEntityFilterResult_Match ApplicableFilter;
    TSharedPtr<UE::MovieScene::FDesiredLayerStates> DesiredLayerStates;
    TWeakPtr<UE::MovieScene::FPreAnimatedDataLayerStorage> WeakPreAnimatedStorage;
};