bool USCS_Node::IsRootNode() const
{
USimpleConstructionScript* SCS = GetSCS();
return(SCS->GetRootNodes().Contains(const_cast<USCS_Node*>(this)));
}
UActorComponent* USCS_Node::ExecuteNodeOnActor(AActor* Actor, USceneComponent* ParentComponent, const FTransform* RootTransform, bool bIsDefaultTransform)
{
check(Actor != nullptr);
check((ParentComponent != nullptr && !ParentComponent->IsPendingKill()) || (RootTransform != nullptr)); // must specify either a parent component or a world transform
auto ActualBPGC = Cast<UBlueprintGeneratedClass>(Actor->GetClass());
UActorComponent* ActualComponentTemplate = GetActualComponentTemplate(ActualBPGC);
// Create a new component instance based on the template
UActorComponent* NewActorComp = Actor->CreateComponentFromTemplate(ActualComponentTemplate, VariableName.ToString());
if(NewActorComp != nullptr)
{
NewActorComp->CreationMethod = EComponentCreationMethod::SimpleConstructionScript;
// SCS created components are net addressable
NewActorComp->SetNetAddressable();
// Special handling for scene components
USceneComponent* NewSceneComp = Cast<USceneComponent>(NewActorComp);
if (NewSceneComp != nullptr)
{
// If NULL is passed in, we are the root, so set transform and assign as RootComponent on Actor
if (ParentComponent == nullptr || (ParentComponent && ParentComponent->IsPendingKill()))
{
FTransform WorldTransform = *RootTransform;
if(bIsDefaultTransform)
{
// Note: We use the scale vector from the component template when spawning (to match what happens with a native root)
WorldTransform.SetScale3D(NewSceneComp->RelativeScale3D);
}
NewSceneComp->SetWorldTransform(WorldTransform);
Actor->SetRootComponent(NewSceneComp);
}
// Otherwise, attach to parent component passed in
else
{
NewSceneComp->AttachTo(ParentComponent, AttachToName);
}
}
// Call function to notify component it has been created
NewActorComp->OnComponentCreated();
if (NewActorComp->GetIsReplicated())
{
// Make sure this component is added to owning actor's replicated list.
NewActorComp->SetIsReplicated(true);
}
// If we want to save this to a property, do it here
FName VarName = GetVariableName();
if (VarName != NAME_None)
{
UClass* ActorClass = Actor->GetClass();
if (UObjectPropertyBase* Prop = FindField<UObjectPropertyBase>(ActorClass, VarName))
{
Prop->SetObjectPropertyValue_InContainer(Actor, NewActorComp);
}
else
{
UE_LOG(LogBlueprint, Log, TEXT("ExecuteNodeOnActor: Couldn't find property '%s' on '%s"), *VarName.ToString(), *Actor->GetName());
#if WITH_EDITOR
// If we're constructing editable components in the SCS editor, set the component instance corresponding to this node for editing purposes
USimpleConstructionScript* SCS = GetSCS();
if(SCS != nullptr && (SCS->IsConstructingEditorComponents() || SCS->GetComponentEditorActorInstance() == Actor))
{
EditorComponentInstance = NewSceneComp;
}
#endif
}
}
// Determine the parent component for our children (it's still our parent if we're a non-scene component)
USceneComponent* ParentSceneComponentOfChildren = (NewSceneComp != nullptr) ? NewSceneComp : ParentComponent;
// If we made a component, go ahead and process our children
for (int32 NodeIdx = 0; NodeIdx < ChildNodes.Num(); NodeIdx++)
{
USCS_Node* Node = ChildNodes[NodeIdx];
check(Node != nullptr);
Node->ExecuteNodeOnActor(Actor, ParentSceneComponentOfChildren, nullptr, false);
}
}
return NewActorComp;
}
int main(int argc, char* argv[]) {
char scs[LENGTH*2];
GetSCS(argv[1],argv[2],scs);
printf("%s\n", scs);
}
