void KX_BlenderMaterial::Replace_IScene(SCA_IScene *val)
{
mScene= static_cast<KX_Scene *>(val);
if (mBlenderShader)
mBlenderShader->SetScene(mScene);
OnConstruction();
}
void AActor::ExecuteConstruction(const FTransform& Transform, const FComponentInstanceDataCache* InstanceDataCache, bool bIsDefaultTransform)
{
check(!IsPendingKill());
check(!HasAnyFlags(RF_BeginDestroyed|RF_FinishDestroyed));
// ensure that any existing native root component gets this new transform
// we can skip this in the default case as the given transform will be the root component's transform
if (RootComponent && !bIsDefaultTransform)
{
RootComponent->SetWorldTransform(Transform);
}
// Generate the parent blueprint hierarchy for this actor, so we can run all the construction scripts sequentially
TArray<const UBlueprintGeneratedClass*> ParentBPClassStack;
const bool bErrorFree = UBlueprintGeneratedClass::GetGeneratedClassesHierarchy(GetClass(), ParentBPClassStack);
// If this actor has a blueprint lineage, go ahead and run the construction scripts from least derived to most
if( (ParentBPClassStack.Num() > 0) )
{
if( bErrorFree )
{
// Prevent user from spawning actors in User Construction Script
TGuardValue<bool> AutoRestoreISCS(GetWorld()->bIsRunningConstructionScript, true);
for( int32 i = ParentBPClassStack.Num() - 1; i >= 0; i-- )
{
const UBlueprintGeneratedClass* CurrentBPGClass = ParentBPClassStack[i];
check(CurrentBPGClass);
if(CurrentBPGClass->SimpleConstructionScript)
{
CurrentBPGClass->SimpleConstructionScript->ExecuteScriptOnActor(this, Transform, bIsDefaultTransform);
}
// Now that the construction scripts have been run, we can create timelines and hook them up
CurrentBPGClass->CreateComponentsForActor(this);
}
// If we passed in cached data, we apply it now, so that the UserConstructionScript can use the updated values
if(InstanceDataCache)
{
InstanceDataCache->ApplyToActor(this, ECacheApplyPhase::PostSimpleConstructionScript);
}
#if WITH_EDITOR
bool bDoUserConstructionScript;
GConfig->GetBool(TEXT("Kismet"), TEXT("bTurnOffEditorConstructionScript"), bDoUserConstructionScript, GEngineIni);
if (!GIsEditor || !bDoUserConstructionScript)
#endif
{
// Then run the user script, which is responsible for calling its own super, if desired
ProcessUserConstructionScript();
}
// Since re-run construction scripts will never be run and we want to keep dynamic spawning fast, don't spend time
// determining the UCS modified properties in game worlds
if (!GetWorld()->IsGameWorld())
{
for (UActorComponent* Component : GetComponents())
{
if (Component)
{
Component->DetermineUCSModifiedProperties();
}
}
}
// Bind any delegates on components
((UBlueprintGeneratedClass*)GetClass())->BindDynamicDelegates(this); // We have a BP stack, we must have a UBlueprintGeneratedClass...
// Apply any cached data procedural components
// @TODO Don't re-apply to components we already applied to above
if (InstanceDataCache)
{
InstanceDataCache->ApplyToActor(this, ECacheApplyPhase::PostUserConstructionScript);
}
}
else
{
// Disaster recovery mode; create a dummy billboard component to retain the actor location
// until the compile error can be fixed
if (RootComponent == NULL)
{
UBillboardComponent* BillboardComponent = NewObject<UBillboardComponent>(this);
BillboardComponent->SetFlags(RF_Transactional);
BillboardComponent->CreationMethod = EComponentCreationMethod::SimpleConstructionScript;
#if WITH_EDITOR
BillboardComponent->Sprite = (UTexture2D*)(StaticLoadObject(UTexture2D::StaticClass(), NULL, TEXT("/Engine/EditorResources/BadBlueprintSprite.BadBlueprintSprite"), NULL, LOAD_None, NULL));
#endif
BillboardComponent->SetRelativeTransform(Transform);
SetRootComponent(BillboardComponent);
FinishAndRegisterComponent(BillboardComponent);
}
}
}
GetWorld()->UpdateCullDistanceVolumes(this);
// Now run virtual notification
OnConstruction(Transform);
}
void KX_BlenderMaterial::Replace_IScene(SCA_IScene *val)
{
mScene= static_cast<KX_Scene *>(val);
OnConstruction();
}
void AActor::RerunConstructionScripts()
{
// don't allow (re)running construction scripts on dying actors
bool bAllowReconstruction = !IsPendingKill() && !HasAnyFlags(RF_BeginDestroyed|RF_FinishDestroyed);
#if WITH_EDITOR
if(bAllowReconstruction && GIsEditor)
{
// Generate the blueprint hierarchy for this actor
TArray<UBlueprint*> ParentBPStack;
bAllowReconstruction = UBlueprint::GetBlueprintHierarchyFromClass(GetClass(), ParentBPStack);
if(bAllowReconstruction)
{
for(int i = ParentBPStack.Num() - 1; i > 0 && bAllowReconstruction; --i)
{
const UBlueprint* ParentBP = ParentBPStack[i];
if(ParentBP && ParentBP->bBeingCompiled)
{
// don't allow (re)running construction scripts if a parent BP is being compiled
bAllowReconstruction = false;
}
}
}
}
#endif
if(bAllowReconstruction)
{
// Temporarily suspend the undo buffer; we don't need to record reconstructed component objects into the current transaction
ITransaction* CurrentTransaction = GUndo;
GUndo = NULL;
// Create cache to store component data across rerunning construction scripts
FComponentInstanceDataCache InstanceDataCache(this);
// If there are attached objects detach them and store the socket names
TArray<AActor*> AttachedActors;
GetAttachedActors(AttachedActors);
// Struct to store info about attached actors
struct FAttachedActorInfo
{
AActor* AttachedActor;
FName AttachedToSocket;
};
// Save info about attached actors
TArray<FAttachedActorInfo> AttachedActorInfos;
for( AActor* AttachedActor : AttachedActors)
{
USceneComponent* EachRoot = AttachedActor->GetRootComponent();
// If the component we are attached to is about to go away...
if( EachRoot && EachRoot->AttachParent && EachRoot->AttachParent->bCreatedByConstructionScript )
{
// Save info about actor to reattach
FAttachedActorInfo Info;
Info.AttachedActor = AttachedActor;
Info.AttachedToSocket = EachRoot->AttachSocketName;
AttachedActorInfos.Add(Info);
// Now detach it
AttachedActor->Modify();
EachRoot->DetachFromParent(true);
}
}
// Save off original pose of the actor
FTransform OldTransform = FTransform::Identity;
FName SocketName;
AActor* Parent = NULL;
if (RootComponent != NULL)
{
// Do not need to detach if root component is not going away
if(RootComponent->AttachParent != NULL && RootComponent->bCreatedByConstructionScript)
{
Parent = RootComponent->AttachParent->GetOwner();
// Root component should never be attached to another component in the same actor!
if(Parent == this)
{
UE_LOG(LogActor, Warning, TEXT("RerunConstructionScripts: RootComponent (%s) attached to another component in this Actor (%s)."), *RootComponent->GetPathName(), *Parent->GetPathName());
Parent = NULL;
}
SocketName = RootComponent->AttachSocketName;
//detach it to remove any scaling
RootComponent->DetachFromParent(true);
}
OldTransform = RootComponent->ComponentToWorld;
}
// Destroy existing components
DestroyConstructedComponents();
// Reset random streams
ResetPropertiesForConstruction();
// Run the construction scripts
OnConstruction(OldTransform);
if(Parent)
{
USceneComponent* ChildRoot = GetRootComponent();
USceneComponent* ParentRoot = Parent->GetRootComponent();
if(ChildRoot != NULL && ParentRoot != NULL)
{
ChildRoot->AttachTo( ParentRoot, SocketName, EAttachLocation::KeepWorldPosition );
}
}
// Apply per-instance data.
InstanceDataCache.ApplyToActor(this);
// If we had attached children reattach them now - unless they are already attached
for(FAttachedActorInfo& Info : AttachedActorInfos)
{
// If this actor is no longer attached to anything, reattach
if (Info.AttachedActor->GetAttachParentActor() == NULL)
{
USceneComponent* ChildRoot = Info.AttachedActor->GetRootComponent();
if (ChildRoot && ChildRoot->AttachParent != RootComponent)
{
ChildRoot->AttachTo(RootComponent, Info.AttachedToSocket, EAttachLocation::KeepWorldPosition);
ChildRoot->UpdateComponentToWorld();
}
}
}
// Restore the undo buffer
GUndo = CurrentTransaction;
}
}
