93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "EntitySystem/MovieSceneEntitySystem.h"
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#include "Math/Transform.h"
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#include "Misc/Build.h"
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#include "MovieSceneTransformOriginSystem.generated.h"
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struct FMovieSceneAnimTypeID;
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// Helper struct to define sorting behavior for parent to child mapping.
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struct FInstanceToParentPair
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{
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// In this struct representation the Child represents this sequence.
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UE::MovieScene::FInstanceHandle Child;
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UE::MovieScene::FInstanceHandle Parent;
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int32 Depth = 0;
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FInstanceToParentPair(const UE::MovieScene::FInstanceHandle Child, const UE::MovieScene::FInstanceHandle Parent, const int32 Depth)
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{
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this->Child = Child;
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this->Parent = Parent;
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this->Depth = Depth;
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}
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bool operator<(const FInstanceToParentPair& Other) const
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{
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return Depth < Other.Depth;
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}
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bool operator==(const FInstanceToParentPair& Other) const
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{
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return Child == Other.Child && Parent == Other.Parent;
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}
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};
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UCLASS(MinimalAPI)
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class UMovieSceneTransformOriginInstantiatorSystem : public UMovieSceneEntitySystem
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{
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public:
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GENERATED_BODY()
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UMovieSceneTransformOriginInstantiatorSystem(const FObjectInitializer& ObjInit);
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private:
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virtual void OnRun(FSystemTaskPrerequisites& InPrerequisites, FSystemSubsequentTasks& Subsequents) override final;
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};
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UCLASS(MinimalAPI)
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class UMovieSceneTransformOriginSystem : public UMovieSceneEntitySystem
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{
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public:
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GENERATED_BODY()
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UMovieSceneTransformOriginSystem(const FObjectInitializer& ObjInit);
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public:
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MOVIESCENETRACKS_API bool GetTransformOrigin(UE::MovieScene::FInstanceHandle InstanceHandle, FTransform& OutTransform) const;
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const TSparseArray<FTransform>& GetTransformOriginsByInstanceID() const { return TransformOriginsByInstanceID; }
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const TMap<FMovieSceneSequenceID, UE::MovieScene::FInstanceHandle>& GetSequenceIDToInstanceHandle() const { return SequenceIDToInstanceHandle; }
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private:
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virtual void OnLink() override;
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virtual bool IsRelevantImpl(UMovieSceneEntitySystemLinker* InLinker) const override;
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virtual void OnSchedulePersistentTasks(UE::MovieScene::IEntitySystemScheduler* TaskScheduler) override;
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virtual void OnRun(FSystemTaskPrerequisites& InPrerequisites, FSystemSubsequentTasks& Subsequents) override final;
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private:
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TSparseArray<FTransform> TransformOriginsByInstanceID;
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TArray<FInstanceToParentPair> InstanceHandleToParentHandle;
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UE::MovieScene::FEntityComponentFilter LocationAndRotationFilterResults;
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TMap<FMovieSceneSequenceID, UE::MovieScene::FInstanceHandle> SequenceIDToInstanceHandle;
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};
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