109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/ObjectMacros.h"
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#include "MovieSceneSection.h"
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#include "GeometryCollection/GeometryCollectionComponent.h"
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#include "Channels/MovieSceneFloatChannel.h"
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#include "UObject/SoftObjectPath.h"
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#include "GeometryCollection/GeometryCollectionCache.h"
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#include "MovieSceneGeometryCollectionSection.generated.h"
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USTRUCT()
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struct FMovieSceneGeometryCollectionParams
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{
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GENERATED_BODY()
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FMovieSceneGeometryCollectionParams();
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virtual ~FMovieSceneGeometryCollectionParams() {}
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/** Gets the animation duration, modified by play rate */
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float GetDuration() const
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{
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if (!FMath::IsNearlyZero(PlayRate))
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{
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return GetSequenceLength() / PlayRate;
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}
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return 0.f;
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}
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/** Gets the animation sequence length, not modified by play rate */
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float GetSequenceLength() const
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{
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if (FMath::IsNearlyZero(PlayRate) || GeometryCollectionCache.ResolveObject() == nullptr)
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{
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return 0.f;
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}
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const FRecordedTransformTrack* CacheData = Cast<UGeometryCollectionCache>(GeometryCollectionCache.ResolveObject())->GetData();
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if (CacheData->Records.Num() > 0)
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{
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return CacheData->Records.Last().Timestamp;
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}
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return 0.0f;
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}
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/** The animation this section plays */
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UPROPERTY(EditAnywhere, Category="GeometryCollection", meta=(AllowedClasses = "/Script/GeometryCollectionEngine.GeometryCollectionCache"))
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FSoftObjectPath GeometryCollectionCache;
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/** The offset into the beginning of the animation clip */
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UPROPERTY(EditAnywhere, Category="GeometryCollection")
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FFrameNumber StartFrameOffset;
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/** The offset into the end of the animation clip */
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UPROPERTY(EditAnywhere, Category="GeometryCollection")
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FFrameNumber EndFrameOffset;
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/** The playback rate of the animation clip */
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UPROPERTY(EditAnywhere, Category="GeometryCollection")
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float PlayRate;
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};
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/**
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* Movie scene section that control geometry cache playback
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*/
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UCLASS( MinimalAPI )
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class UMovieSceneGeometryCollectionSection
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: public UMovieSceneSection
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{
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GENERATED_UCLASS_BODY()
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public:
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UPROPERTY(EditAnywhere, Category = "Animation", meta=(ShowOnlyInnerProperties))
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FMovieSceneGeometryCollectionParams Params;
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/** Get Frame Time as Animation Time*/
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virtual float MapTimeToAnimation(FFrameTime InPosition, FFrameRate InFrameRate) const;
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protected:
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//~ UMovieSceneSection interface
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virtual TOptional<TRange<FFrameNumber> > GetAutoSizeRange() const override;
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virtual void TrimSection(FQualifiedFrameTime TrimTime, bool bTrimLeft, bool bDeleteKeys) override;
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virtual UMovieSceneSection* SplitSection(FQualifiedFrameTime SplitTime, bool bDeleteKeys) override;
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virtual void GetSnapTimes(TArray<FFrameNumber>& OutSnapTimes, bool bGetSectionBorders) const override;
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virtual TOptional<FFrameTime> GetOffsetTime() const override;
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virtual void MigrateFrameTimes(FFrameRate SourceRate, FFrameRate DestinationRate) override;
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virtual UObject* GetSourceObject() const override;
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private:
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//~ UObject interface
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#if WITH_EDITOR
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virtual void PreEditChange(FProperty* PropertyAboutToChange) override;
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virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
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public:
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float PreviousPlayRate;
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#endif
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};
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