FKeyHandle UMovieSceneActorReferenceSection::AddKey(float Time, const FGuid& Value)
{
if (IsTimeWithinSection(Time))
{
if (TryModify())
{
FKeyHandle ExistingKeyHandle = ActorGuidIndexCurve.FindKey(Time);
if (ActorGuidIndexCurve.IsKeyHandleValid(ExistingKeyHandle))
{
int32 ActorGuidIndex = ActorGuidIndexCurve.GetKeyValue(ExistingKeyHandle);
if (ActorGuidIndex >= 0 && ActorGuidIndex < ActorGuids.Num())
{
ActorGuids[ActorGuidIndex] = Value;
return ExistingKeyHandle;
}
else
{
int32 NewActorGuidIndex = ActorGuids.Add(Value);
return ActorGuidIndexCurve.UpdateOrAddKey(Time, NewActorGuidIndex);
}
}
else
{
int32 NewActorGuidIndex = ActorGuids.Add(Value);
return ActorGuidIndexCurve.AddKey(Time, NewActorGuidIndex);
}
}
}
return FKeyHandle();
}
UMovieSceneSection* UMovieSceneSection::SplitSection(float SplitTime)
{
if (!IsTimeWithinSection(SplitTime))
{
return nullptr;
}
SetFlags(RF_Transactional);
if (TryModify())
{
float SectionEndTime = GetEndTime();
// Trim off the right
SetEndTime(SplitTime);
// Create a new section
UMovieSceneTrack* Track = CastChecked<UMovieSceneTrack>(GetOuter());
Track->Modify();
UMovieSceneSection* NewSection = DuplicateObject<UMovieSceneSection>(this, Track);
check(NewSection);
NewSection->SetStartTime(SplitTime);
NewSection->SetEndTime(SectionEndTime);
Track->AddSection(*NewSection);
return NewSection;
}
return nullptr;
}
void UMovieSceneSection::SetCurveDefault(FRichCurve& InCurve, float Value)
{
if (TryModify())
{
InCurve.SetDefaultValue(Value);
}
}
void UMovieScene3DPathSection::AddPath( float Time, float SequenceEndTime, const FGuid& InPathId )
{
if (TryModify())
{
ConstraintId = InPathId;
TimingCurve.UpdateOrAddKey(Time, 0);
TimingCurve.UpdateOrAddKey(SequenceEndTime, 1);
}
}
void UMovieSceneSection::AddKeyToCurve(FRichCurve& InCurve, float Time, float Value, EMovieSceneKeyInterpolation Interpolation, const bool bUnwindRotation)
{
if (IsTimeWithinSection(Time))
{
if (TryModify())
{
FKeyHandle ExistingKeyHandle = InCurve.FindKey(Time);
FKeyHandle NewKeyHandle = InCurve.UpdateOrAddKey(Time, Value, bUnwindRotation);
if (!InCurve.IsKeyHandleValid(ExistingKeyHandle) && InCurve.IsKeyHandleValid(NewKeyHandle))
{
MovieSceneHelpers::SetKeyInterpolation(InCurve, NewKeyHandle, Interpolation);
}
}
}
}
void UMovieSceneSection::TrimSection(float TrimTime, bool bTrimLeft)
{
if (IsTimeWithinSection(TrimTime))
{
SetFlags(RF_Transactional);
if (TryModify())
{
if (bTrimLeft)
{
SetStartTime(TrimTime);
}
else
{
SetEndTime(TrimTime);
}
}
}
}
