void UMovieSceneAnimationTrack::AddNewAnimation(float KeyTime, UAnimSequence* AnimSequence)
{
// add the section
UMovieSceneAnimationSection* NewSection = NewObject<UMovieSceneAnimationSection>(this);
NewSection->InitialPlacement( AnimationSections, KeyTime, KeyTime + AnimSequence->SequenceLength, SupportsMultipleRows() );
NewSection->SetAnimationStartTime( KeyTime );
NewSection->SetAnimSequence(AnimSequence);
AnimationSections.Add(NewSection);
}
void FMovieSceneAnimationTrackInstance::Update( float Position, float LastPosition, const TArray<UObject*>& RuntimeObjects, class IMovieScenePlayer& Player )
{
// @todo Sequencer gameplay update has a different code path than editor update for animation
for (int32 i = 0; i < RuntimeObjects.Num(); ++i)
{
IMatineeAnimInterface* AnimInterface = Cast<IMatineeAnimInterface>(RuntimeObjects[i]);
if (AnimInterface)
{
UMovieSceneAnimationSection* AnimSection = Cast<UMovieSceneAnimationSection>(AnimationTrack->GetAnimSectionAtTime(Position));
if (AnimSection)
{
int32 ChannelIndex = 0;
FName SlotName = FName("AnimationSlot");
UAnimSequence* AnimSequence = AnimSection->GetAnimSequence();
float AnimPosition = FMath::Fmod(Position - AnimSection->GetAnimationStartTime(), AnimSection->GetAnimationDuration()) / AnimSection->GetAnimationDilationFactor();
AnimInterface->PreviewBeginAnimControl(NULL);
AnimInterface->PreviewSetAnimPosition(SlotName, ChannelIndex, AnimSequence, AnimPosition, true, false, 0.f);
}
}
}
}
int32 FAnimationSection::OnPaintSection( const FGeometry& AllottedGeometry, const FSlateRect& SectionClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, bool bParentEnabled ) const
{
UMovieSceneAnimationSection* AnimSection = Cast<UMovieSceneAnimationSection>(&Section);
FTimeToPixel TimeToPixelConverter( AllottedGeometry, TRange<float>( Section.GetStartTime(), Section.GetEndTime() ) );
// Add a box for the section
FSlateDrawElement::MakeBox(
OutDrawElements,
LayerId,
AllottedGeometry.ToPaintGeometry(),
FEditorStyle::GetBrush("Sequencer.GenericSection.Background"),
SectionClippingRect,
ESlateDrawEffect::None,
FLinearColor(0.7f, 0.4f, 0.7f, 1.f)
);
// Darken the part that doesn't have animation
if (AnimSection->GetAnimationStartTime() > AnimSection->GetStartTime())
{
float StartDarkening = AnimSection->GetStartTime();
float EndDarkening = FMath::Min(AnimSection->GetAnimationStartTime(), AnimSection->GetEndTime());
float StartPixels = TimeToPixelConverter.TimeToPixel(StartDarkening);
float EndPixels = TimeToPixelConverter.TimeToPixel(EndDarkening);
FSlateDrawElement::MakeBox(
OutDrawElements,
LayerId + 1,
AllottedGeometry.ToPaintGeometry(FVector2D(StartPixels, 0), FVector2D(EndPixels - StartPixels, AllottedGeometry.Size.Y)),
FEditorStyle::GetBrush("WhiteTexture"),
SectionClippingRect,
ESlateDrawEffect::None,
FLinearColor(0.f, 0.f, 0.f, 0.3f)
);
}
// Add lines where the animation starts and ends/loops
float CurrentTime = AnimSection->GetAnimationStartTime();
while (CurrentTime < AnimSection->GetEndTime())
{
if (CurrentTime > AnimSection->GetStartTime())
{
float CurrentPixels = TimeToPixelConverter.TimeToPixel(CurrentTime);
TArray<FVector2D> Points;
Points.Add(FVector2D(CurrentPixels, 0));
Points.Add(FVector2D(CurrentPixels, AllottedGeometry.Size.Y));
FSlateDrawElement::MakeLines(
OutDrawElements,
LayerId + 2,
AllottedGeometry.ToPaintGeometry(),
Points,
SectionClippingRect
);
}
CurrentTime += AnimSection->GetAnimationDuration();
}
return LayerId+3;
}
