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 UActorRecording::ProcessNewComponentArray(TInlineComponentArray<USceneComponent*>& ProspectiveComponents) const
{
// Only iterate as far as the current size of the array (it may grow inside the loop)
int32 LastIndex = ProspectiveComponents.Num();
for(int32 Index = 0; Index < LastIndex; ++Index)
{
USceneComponent* NewComponent = ProspectiveComponents[Index];
USceneComponent* Parent = ProspectiveComponents[Index]->GetAttachParent();
while (Parent)
{
TWeakObjectPtr<USceneComponent> WeakParent(Parent);
if (TrackedComponents.Contains(WeakParent) || ProspectiveComponents.Contains(Parent) || Parent->GetOwner() != NewComponent->GetOwner())
{
break;
}
else
{
ProspectiveComponents.Add(Parent);
}
Parent = Parent->GetAttachParent();
}
}
// Sort parent first, to ensure that attachments get added properly
TMap<USceneComponent*, int32> AttachmentDepths;
for (USceneComponent* Component : ProspectiveComponents)
{
AttachmentDepths.Add(Component, GetAttachmentDepth(Component));
}
ProspectiveComponents.Sort(
[&](USceneComponent& A, USceneComponent& B)
{
return *AttachmentDepths.Find(&A) < *AttachmentDepths.Find(&B);
}
);
}
void USimpleConstructionScript::ExecuteScriptOnActor(AActor* Actor, const FTransform& RootTransform, bool bIsDefaultTransform)
{
if(RootNodes.Num() > 0)
{
TSet<UActorComponent*> AllComponentsCreatedBySCS;
TInlineComponentArray<UActorComponent*> InstancedComponents;
for(auto NodeIt = RootNodes.CreateIterator(); NodeIt; ++NodeIt)
{
USCS_Node* RootNode = *NodeIt;
if(RootNode != nullptr)
{
// Get all native scene components
TInlineComponentArray<USceneComponent*> Components;
Actor->GetComponents(Components);
for (int32 Index = Components.Num()-1; Index >= 0; --Index)
{
USceneComponent* SceneComponent = Components[Index];
if (SceneComponent->CreationMethod == EComponentCreationMethod::Instance)
{
Components.RemoveAt(Index);
}
else
{
// Handle the native sub-component of an instance component case
USceneComponent* ParentSceneComponent = SceneComponent->GetTypedOuter<USceneComponent>();
if (ParentSceneComponent && ParentSceneComponent->CreationMethod == EComponentCreationMethod::Instance)
{
Components.RemoveAt(Index);
}
}
}
// Get the native root component; if it's not set, the first native scene component will be used as root. This matches what's done in the SCS editor.
USceneComponent* RootComponent = Actor->GetRootComponent();
if(RootComponent == nullptr && Components.Num() > 0)
{
RootComponent = Components[0];
}
// If the root node specifies that it has a parent
USceneComponent* ParentComponent = nullptr;
if(RootNode->ParentComponentOrVariableName != NAME_None)
{
// Get the Actor class object
UClass* ActorClass = Actor->GetClass();
check(ActorClass != nullptr);
// If the root node is parented to a "native" component (i.e. in the 'Components' array)
if(RootNode->bIsParentComponentNative)
{
for(int32 CompIndex = 0; CompIndex < Components.Num(); ++CompIndex)
{
// If we found a match, remember the index
if(Components[CompIndex]->GetFName() == RootNode->ParentComponentOrVariableName)
{
ParentComponent = Components[CompIndex];
break;
}
}
}
else
{
// In the non-native case, the SCS node's variable name property is used as the parent identifier
UObjectPropertyBase* Property = FindField<UObjectPropertyBase>(ActorClass, RootNode->ParentComponentOrVariableName);
if(Property != nullptr)
{
// If we found a matching property, grab its value and use that as the parent for this node
ParentComponent = Cast<USceneComponent>(Property->GetObjectPropertyValue_InContainer(Actor));
}
}
}
// Create the new component instance and any child components it may have
UActorComponent* InstancedComponent = RootNode->ExecuteNodeOnActor(Actor, ParentComponent != nullptr ? ParentComponent : RootComponent, &RootTransform, bIsDefaultTransform);
if(InstancedComponent != nullptr)
{
InstancedComponents.Add(InstancedComponent);
}
// get list of every component SCS created, in case some of them aren't in the attachment hierarchy any more (e.g. rigid bodies)
TInlineComponentArray<USceneComponent*> ComponentsAfterSCS;
Actor->GetComponents(ComponentsAfterSCS);
for (USceneComponent* C : ComponentsAfterSCS)
{
if (Components.Contains(C) == false)
{
AllComponentsCreatedBySCS.Add(C);
}
}
}
}
// Register all instanced SCS components once SCS execution has finished; sorted in order to register the scene component hierarchy first, followed by the remaining actor components (in case they happen to depend on something in the scene hierarchy)
InstancedComponents.Sort([](const UActorComponent& A, const UActorComponent& B) { return A.IsA<USceneComponent>(); });
for(auto InstancedComponent : InstancedComponents)
{
RegisterInstancedComponent(InstancedComponent);
}
// now that the instanced components in the attachment hierarchy are registered, register any other components that SCS made but aren't in the attachment hierarchy for whatever reason.
for (auto C : AllComponentsCreatedBySCS)
{
if (C->IsRegistered() == false)
{
C->RegisterComponent();
}
}
}
else if(Actor->GetRootComponent() == NULL) // Must have a root component at the end of SCS, so if we don't have one already (from base class), create a SceneComponent now
{
USceneComponent* SceneComp = NewObject<USceneComponent>(Actor);
SceneComp->SetFlags(RF_Transactional);
SceneComp->CreationMethod = EComponentCreationMethod::SimpleConstructionScript;
SceneComp->SetWorldTransform(RootTransform);
Actor->SetRootComponent(SceneComp);
SceneComp->RegisterComponent();
}
}
void UActorRecording::StartRecordingActorProperties(ULevelSequence* CurrentSequence, float CurrentSequenceTime)
{
if(CurrentSequence != nullptr)
{
// set up our spawnable or possessable for this actor
UMovieScene* MovieScene = CurrentSequence->GetMovieScene();
AActor* Actor = GetActorToRecord();
if (bRecordToPossessable)
{
Guid = MovieScene->AddPossessable(Actor->GetActorLabel(), Actor->GetClass());
CurrentSequence->BindPossessableObject(Guid, *Actor, Actor->GetWorld());
}
else
{
FString TemplateName = GetUniqueSpawnableName(MovieScene, Actor->GetName());
AActor* ObjectTemplate = CastChecked<AActor>(CurrentSequence->MakeSpawnableTemplateFromInstance(*Actor, *TemplateName));
if (ObjectTemplate)
{
TInlineComponentArray<USkeletalMeshComponent*> SkeletalMeshComponents;
ObjectTemplate->GetComponents(SkeletalMeshComponents);
for (USkeletalMeshComponent* SkeletalMeshComponent : SkeletalMeshComponents)
{
SkeletalMeshComponent->SetAnimationMode(EAnimationMode::AnimationSingleNode);
SkeletalMeshComponent->bEnableUpdateRateOptimizations = false;
SkeletalMeshComponent->MeshComponentUpdateFlag = EMeshComponentUpdateFlag::AlwaysTickPoseAndRefreshBones;
SkeletalMeshComponent->ForcedLodModel = 1;
}
Guid = MovieScene->AddSpawnable(TemplateName, *ObjectTemplate);
}
}
// now add tracks to record
if(Guid.IsValid())
{
// add our folder
FindOrAddFolder(MovieScene);
// force set recording to record translations as we need this with no animation
UMovieScene3DTransformSectionRecorderSettings* TransformSettings = ActorSettings.GetSettingsObject<UMovieScene3DTransformSectionRecorderSettings>();
check(TransformSettings);
TransformSettings->bRecordTransforms = true;
// grab components so we can track attachments
// don't include non-CDO here as they wont be part of our initial BP (duplicated above)
// we will catch these 'extra' components on the first tick
const bool bIncludeNonCDO = false;
SyncTrackedComponents(bIncludeNonCDO);
TInlineComponentArray<USceneComponent*> SceneComponents(GetActorToRecord());
// check if components need recording
TInlineComponentArray<USceneComponent*> ValidSceneComponents;
for(TWeakObjectPtr<USceneComponent>& SceneComponent : TrackedComponents)
{
if(ValidComponent(SceneComponent.Get()))
{
ValidSceneComponents.Add(SceneComponent.Get());
// add all parent components too
TArray<USceneComponent*> ParentComponents;
SceneComponent->GetParentComponents(ParentComponents);
for(USceneComponent* ParentComponent : ParentComponents)
{
ValidSceneComponents.AddUnique(ParentComponent);
}
}
}
ProcessNewComponentArray(ValidSceneComponents);
TSharedPtr<FMovieSceneAnimationSectionRecorder> FirstAnimRecorder = nullptr;
for(USceneComponent* SceneComponent : ValidSceneComponents)
{
TSharedPtr<FMovieSceneAnimationSectionRecorder> AnimRecorder = StartRecordingComponentProperties(SceneComponent->GetFName(), SceneComponent, GetActorToRecord(), CurrentSequence, CurrentSequenceTime, AnimationSettings);
if(!FirstAnimRecorder.IsValid() && AnimRecorder.IsValid() && GetActorToRecord()->IsA<ACharacter>())
{
FirstAnimRecorder = AnimRecorder;
}
}
// we need to create a transform track even if we arent recording transforms
if (FSequenceRecorder::Get().GetTransformRecorderFactory().CanRecordObject(GetActorToRecord()))
{
TSharedPtr<IMovieSceneSectionRecorder> Recorder = FSequenceRecorder::Get().GetTransformRecorderFactory().CreateSectionRecorder(TransformSettings->bRecordTransforms, FirstAnimRecorder);
if(Recorder.IsValid())
{
Recorder->CreateSection(GetActorToRecord(), MovieScene, Guid, CurrentSequenceTime);
Recorder->Record(CurrentSequenceTime);
SectionRecorders.Add(Recorder);
}
}
TArray<IMovieSceneSectionRecorderFactory*> ModularFeatures = IModularFeatures::Get().GetModularFeatureImplementations<IMovieSceneSectionRecorderFactory>(MovieSceneSectionRecorderFactoryName);
for (IMovieSceneSectionRecorderFactory* Factory : ModularFeatures)
{
if (Factory->CanRecordObject(GetActorToRecord()))
{
TSharedPtr<IMovieSceneSectionRecorder> Recorder = Factory->CreateSectionRecorder(ActorSettings);
if (Recorder.IsValid())
{
Recorder->CreateSection(GetActorToRecord(), MovieScene, Guid, CurrentSequenceTime);
Recorder->Record(CurrentSequenceTime);
SectionRecorders.Add(Recorder);
}
}
}
}
}
}
