52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "CoreMinimal.h"
|
|
#include "Engine/EngineTypes.h"
|
|
#include "Evaluation/IMovieScenePlaybackCapability.h"
|
|
#include "Evaluation/MovieScenePlaybackCapabilities.h"
|
|
#include "MovieSceneSequenceID.h"
|
|
#include "UObject/GCObject.h"
|
|
|
|
namespace UE::MovieScene
|
|
{
|
|
|
|
struct FSharedPlaybackState;
|
|
|
|
/**
|
|
* Playback capability for sequences that have a director blueprint.
|
|
*/
|
|
struct FSequenceDirectorPlaybackCapability : public IPlaybackCapability
|
|
{
|
|
UE_DECLARE_MOVIESCENE_PLAYBACK_CAPABILITY_API(MOVIESCENE_API, FSequenceDirectorPlaybackCapability)
|
|
|
|
/** Remove all director blueprint instances */
|
|
MOVIESCENE_API void ResetDirectorInstances();
|
|
|
|
/** Gets a new or existing director blueprint instance for the given root or sub sequence */
|
|
MOVIESCENE_API UObject* GetOrCreateDirectorInstance(TSharedRef<const FSharedPlaybackState> SharedPlaybackState, FMovieSceneSequenceIDRef SequenceID);
|
|
|
|
public:
|
|
|
|
// IPlaybackCapability interface.
|
|
MOVIESCENE_API virtual void InvalidateCachedData(UMovieSceneEntitySystemLinker* Linker) override;
|
|
|
|
private:
|
|
|
|
// The actual cache of BP instances is stored in a heap-allocated object
|
|
// because it neeeds to be an FGCObject to keep those instances alive, and
|
|
// an FGCObject isn't relocatable so we can't put it in a playback
|
|
// capabailities container.
|
|
struct FDirectorInstanceCache : FGCObject
|
|
{
|
|
virtual FString GetReferencerName() const override;
|
|
virtual void AddReferencedObjects(FReferenceCollector& Collector) override;
|
|
TSortedMap<FMovieSceneSequenceID, TObjectPtr<UObject>> DirectorInstances;
|
|
};
|
|
TUniquePtr<FDirectorInstanceCache> Cache;
|
|
};
|
|
|
|
} // namespace UE::MovieScene
|
|
|