void FSubMovieSceneTrackInstance::Update( float Position, float LastPosition, const TArray<UObject*>& RuntimeObjects, class IMovieScenePlayer& Player )
{
const TArray<UMovieSceneSection*>& AllSections = SubMovieSceneTrack->GetAllSections();
TArray<UMovieSceneSection*> TraversedSections = MovieSceneHelpers::GetTraversedSections( AllSections, Position, LastPosition );
for( int32 SectionIndex = 0; SectionIndex < TraversedSections.Num(); ++SectionIndex )
{
USubMovieSceneSection* Section = CastChecked<USubMovieSceneSection>( TraversedSections[SectionIndex] );
TSharedPtr<FMovieSceneSequenceInstance> Instance = SubMovieSceneInstances.FindRef( Section );
FMovieSceneSequenceInstance* InstancePtr = Instance.Get();
if( InstancePtr )
{
TRange<float> TimeRange = InstancePtr->GetMovieSceneTimeRange();
// Position for the movie scene needs to be in local space
float LocalDelta = TimeRange.GetLowerBoundValue() - Section->GetStartTime();
float LocalPosition = Position + LocalDelta;
InstancePtr->Update(LocalPosition, LastPosition + LocalDelta, Player);
}
}
}
void FMovieSceneSpawnTrackInstance::Update(EMovieSceneUpdateData& UpdateData, const TArray<TWeakObjectPtr<UObject>>& RuntimeObjects, IMovieScenePlayer& Player, FMovieSceneSequenceInstance& SequenceInstance)
{
IMovieSceneSpawnRegister& SpawnRegister = Player.GetSpawnRegister();
FMovieSceneSpawnable* Spawnable = SequenceInstance.GetSequence()->GetMovieScene()->FindSpawnable(Track->GetObjectId());
TRange<float> Range = SequenceInstance.GetTimeRange();
const bool bIsPreview = Player.IsPreview();
// If we're evaluating outside of the instance's time range, and the sequence owns the spawnable, there's no reason to evaluate - it should already be destroyed
if (Spawnable && Spawnable->GetSpawnOwnership() == ESpawnOwnership::InnerSequence && !Range.Contains(UpdateData.Position))
{
bool bDestroy = true;
#if WITH_EDITORONLY_DATA
bDestroy = !Spawnable->ShouldIgnoreOwnershipInEditor();
// Don't destroy cameras while previewing
if (bIsPreview && MovieSceneHelpers::CameraComponentFromActor(Cast<AActor>(Spawnable->GetObjectTemplate())))
{
bDestroy = false;
}
#endif
if (bDestroy)
{
SpawnRegister.DestroySpawnedObject(Track->GetObjectId(), SequenceInstance, Player);
return;
}
}
bool bIsSpawned = false;
if (Track->Eval(UpdateData.Position, UpdateData.LastPosition, bIsSpawned))
{
// Spawn the object if needed
if (bIsSpawned && RuntimeObjects.Num() == 0)
{
SpawnRegister.SpawnObject(Track->GetObjectId(), SequenceInstance, Player);
}
// Destroy the object if needed
if (!bIsSpawned && RuntimeObjects.Num() != 0)
{
SpawnRegister.DestroySpawnedObject(Track->GetObjectId(), SequenceInstance, Player);
}
}
}
void FMovieSceneActorReferenceTrackInstance::Update(EMovieSceneUpdateData& UpdateData, const TArray<TWeakObjectPtr<UObject>>& RuntimeObjects, class IMovieScenePlayer& Player, FMovieSceneSequenceInstance& SequenceInstance )
{
// TODO: Support default values.
FGuid ActorReferenceGuid;
if( ActorReferenceTrack->Eval( UpdateData.Position, UpdateData.LastPosition, ActorReferenceGuid ) )
{
AActor* CurrentActor = nullptr;
if (GuidToActorCache.Contains(ActorReferenceGuid))
{
TWeakObjectPtr<AActor> CachedActor = *GuidToActorCache.Find(ActorReferenceGuid);
if (CachedActor.IsValid())
{
CurrentActor = CachedActor.Get();
}
}
if (CurrentActor == nullptr)
{
TArray<TWeakObjectPtr<UObject>> RuntimeObjectsForGuid;
Player.GetRuntimeObjects(SequenceInstance.AsShared(), ActorReferenceGuid, RuntimeObjectsForGuid);
if (RuntimeObjectsForGuid.Num() == 1)
{
AActor* ActorForGuid = Cast<AActor>(RuntimeObjectsForGuid[0].Get());
if (ActorForGuid != nullptr)
{
CurrentActor = ActorForGuid;
if (CurrentActor != nullptr)
{
GuidToActorCache.Add(ActorReferenceGuid, CurrentActor);
}
}
}
}
if (CurrentActor != nullptr)
{
for (auto ObjectPtr : RuntimeObjects)
{
UObject* Object = ObjectPtr.Get();
PropertyBindings->CallFunction<AActor*>(Object, &CurrentActor);
}
}
}
}
void FMovieSceneActorReferenceTrackInstance::Update(EMovieSceneUpdateData& UpdateData, const TArray<TWeakObjectPtr<UObject>>& RuntimeObjects, class IMovieScenePlayer& Player, FMovieSceneSequenceInstance& SequenceInstance )
{
FGuid ActorReferenceGuid;
if( ActorReferenceTrack->Eval( UpdateData.Position, UpdateData.LastPosition, ActorReferenceGuid ) )
{
AActor* CurrentActor;
AActor** CachedActorPtr = GuidToActorCache.Find( ActorReferenceGuid );
if (CachedActorPtr != nullptr)
{
CurrentActor = *CachedActorPtr;
}
else
{
TArray<TWeakObjectPtr<UObject>> RuntimeObjectsForGuid;
Player.GetRuntimeObjects(SequenceInstance.AsShared(), ActorReferenceGuid, RuntimeObjectsForGuid);
if (RuntimeObjectsForGuid.Num() == 1)
{
AActor* ActorForGuid = Cast<AActor>(RuntimeObjectsForGuid[0].Get());
if (ActorForGuid != nullptr)
{
CurrentActor = ActorForGuid;
GuidToActorCache.Add(ActorReferenceGuid, CurrentActor);
}
}
}
for (auto ObjectPtr : RuntimeObjects)
{
UObject* Object = ObjectPtr.Get();
PropertyBindings->CallFunction<AActor*>(Object, &CurrentActor);
}
}
}