void UActorRecording::StartRecordingNewComponents(ULevelSequence* CurrentSequence, float CurrentSequenceTime)
{
if (GetActorToRecord() != nullptr)
{
// find the new component(s)
TInlineComponentArray<USceneComponent*> NewComponents;
TArray<USceneComponent*> SceneComponents;
GetSceneComponents(SceneComponents);
for(USceneComponent* SceneComponent : SceneComponents)
{
if(ValidComponent(SceneComponent))
{
TWeakObjectPtr<USceneComponent> WeakSceneComponent(SceneComponent);
int32 FoundIndex = TrackedComponents.Find(WeakSceneComponent);
if(FoundIndex == INDEX_NONE)
{
// new component!
NewComponents.Add(SceneComponent);
}
}
}
ProcessNewComponentArray(NewComponents);
UMovieScene* MovieScene = CurrentSequence->GetMovieScene();
check(MovieScene);
FAnimationRecordingSettings ComponentAnimationSettings = AnimationSettings;
ComponentAnimationSettings.bRemoveRootAnimation = false;
ComponentAnimationSettings.bRecordInWorldSpace = false;
const USequenceRecorderSettings* Settings = GetDefault<USequenceRecorderSettings>();
if (!bRecordToPossessable)
{
FMovieSceneSpawnable* Spawnable = MovieScene->FindSpawnable(Guid);
check(Spawnable);
AActor* ObjectTemplate = CastChecked<AActor>(Spawnable->GetObjectTemplate());
for (USceneComponent* SceneComponent : NewComponents)
{
// new component, so we need to add this to our BP if it didn't come from SCS
FName NewName;
if (SceneComponent->CreationMethod != EComponentCreationMethod::SimpleConstructionScript)
{
// Give this component a unique name within its parent
NewName = *FString::Printf(TEXT("Dynamic%s"), *SceneComponent->GetFName().GetPlainNameString());
NewName.SetNumber(1);
while (FindObjectFast<UObject>(ObjectTemplate, NewName))
{
NewName.SetNumber(NewName.GetNumber() + 1);
}
USceneComponent* TemplateRoot = ObjectTemplate->GetRootComponent();
USceneComponent* AttachToComponent = nullptr;
// look for a similar attach parent in the current structure
USceneComponent* AttachParent = SceneComponent->GetAttachParent();
if(AttachParent != nullptr)
{
// First off, check if we're attached to a component that has already been duplicated into this object
// If so, the name lookup will fail, so we use a direct reference
if (TWeakObjectPtr<USceneComponent>* DuplicatedComponent = DuplicatedDynamicComponents.Find(AttachParent))
{
AttachToComponent = DuplicatedComponent->Get();
}
// If we don't have an attachment parent duplicated already, perform a name lookup
if (!AttachToComponent)
{
FName AttachName = SceneComponent->GetAttachParent()->GetFName();
TInlineComponentArray<USceneComponent*> AllChildren;
ObjectTemplate->GetComponents(AllChildren);
for (USceneComponent* Child : AllChildren)
{
CA_SUPPRESS(28182); // Dereferencing NULL pointer. 'Child' contains the same NULL value as 'AttachToComponent' did.
if (Child->GetFName() == AttachName)
{
AttachToComponent = Child;
break;
}
}
}
}
if (!AttachToComponent)
{
AttachToComponent = ObjectTemplate->GetRootComponent();
}
USceneComponent* NewTemplateComponent = Cast<USceneComponent>(StaticDuplicateObject(SceneComponent, ObjectTemplate, NewName, RF_AllFlags & ~RF_Transient));
NewTemplateComponent->AttachToComponent(AttachToComponent, FAttachmentTransformRules::KeepRelativeTransform, SceneComponent->GetAttachSocketName());
ObjectTemplate->AddInstanceComponent(NewTemplateComponent);
DuplicatedDynamicComponents.Add(SceneComponent, NewTemplateComponent);
}
else
{
NewName = SceneComponent->GetFName();
}
StartRecordingComponentProperties(NewName, SceneComponent, GetActorToRecord(), CurrentSequence, CurrentSequenceTime, ComponentAnimationSettings);
bNewComponentAddedWhileRecording = true;
}
SyncTrackedComponents();
}
else
{
for (USceneComponent* SceneComponent : NewComponents)
{
// new component, start recording
StartRecordingComponentProperties(SceneComponent->GetFName(), SceneComponent, GetActorToRecord(), CurrentSequence, CurrentSequenceTime, ComponentAnimationSettings);
}
SyncTrackedComponents();
}
}
}
void UChildActorComponent::OnRegister()
{
Super::OnRegister();
if (ChildActor)
{
if (ChildActor->GetClass() != ChildActorClass)
{
DestroyChildActor();
CreateChildActor();
}
else
{
ChildActorName = ChildActor->GetFName();
USceneComponent* ChildRoot = ChildActor->GetRootComponent();
if (ChildRoot && ChildRoot->GetAttachParent() != this)
{
// attach new actor to this component
// we can't attach in CreateChildActor since it has intermediate Mobility set up
// causing spam with inconsistent mobility set up
// so moving Attach to happen in Register
ChildRoot->AttachToComponent(this, FAttachmentTransformRules::SnapToTargetNotIncludingScale);
}
// Ensure the components replication is correctly initialized
SetIsReplicated(ChildActor->GetIsReplicated());
}
}
else if (ChildActorClass)
{
CreateChildActor();
}
}
UActorComponent* UActorBlueprintLibrary::AttachComponentOfClass(UObject* WorldContextObject, TSubclassOf<UActorComponent> ComponentClass, AActor* Owner, FName ComponentName, USceneComponent* AttachTo, FName SocketName)
{
if (!Owner)
{
return nullptr;
}
UActorComponent* Component = NewObject<UActorComponent>(Owner, *ComponentClass, ComponentName);
if (!Component)
{
return nullptr;
}
Component->RegisterComponent();
Component->OnComponentCreated();
USceneComponent* SceneComponent = Cast<USceneComponent>(Component);
if (SceneComponent)
{
SceneComponent->SetWorldLocation(Owner->GetActorLocation());
SceneComponent->SetWorldRotation(Owner->GetActorRotation());
USceneComponent* AttachToComponent = AttachTo ? AttachTo : Owner->GetRootComponent();
SceneComponent->AttachToComponent(AttachToComponent, FAttachmentTransformRules::KeepWorldTransform, SocketName);
}
return Component;
}
void UChildActorComponent::ApplyComponentInstanceData(FChildActorComponentInstanceData* ChildActorInstanceData, const ECacheApplyPhase CacheApplyPhase)
{
check(ChildActorInstanceData);
ChildActorName = ChildActorInstanceData->ChildActorName;
if (ChildActor)
{
// Only rename if it is safe to
if(ChildActorName != NAME_None)
{
const FString ChildActorNameString = ChildActorName.ToString();
if (ChildActor->Rename(*ChildActorNameString, nullptr, REN_Test))
{
ChildActor->Rename(*ChildActorNameString, nullptr, REN_DoNotDirty | (IsLoading() ? REN_ForceNoResetLoaders : REN_None));
}
}
if (ChildActorInstanceData->ComponentInstanceData)
{
ChildActorInstanceData->ComponentInstanceData->ApplyToActor(ChildActor, CacheApplyPhase);
}
USceneComponent* ChildActorRoot = ChildActor->GetRootComponent();
if (ChildActorRoot)
{
for (const auto& AttachInfo : ChildActorInstanceData->AttachedActors)
{
AActor* AttachedActor = AttachInfo.Actor.Get();
if (AttachedActor)
{
USceneComponent* AttachedRootComponent = AttachedActor->GetRootComponent();
if (AttachedRootComponent)
{
AttachedActor->DetachRootComponentFromParent();
AttachedRootComponent->AttachToComponent(ChildActorRoot, FAttachmentTransformRules::KeepWorldTransform, AttachInfo.SocketName);
AttachedRootComponent->SetRelativeTransform(AttachInfo.RelativeTransform);
AttachedRootComponent->UpdateComponentToWorld();
}
}
}
}
}
}