void FHierarchicalLODUtilities::DestroyCluster(ALODActor* InActor)
{
// Find if it has a parent ALODActor
AActor* Actor = CastChecked<AActor>(InActor);
UWorld* World = Actor->GetWorld();
ALODActor* ParentLOD = GetParentLODActor(InActor);
const FScopedTransaction Transaction(LOCTEXT("UndoAction_DeleteCluster", "Deleting a (invalid) Cluster"));
Actor->Modify();
World->Modify();
if (ParentLOD != nullptr)
{
ParentLOD->Modify();
ParentLOD->RemoveSubActor(Actor);
}
// Clean out sub actors and update their LODParent
while (InActor->SubActors.Num())
{
AActor* SubActor = InActor->SubActors[0];
SubActor->Modify();
InActor->RemoveSubActor(SubActor);
}
// Also destroy the cluster's data
DestroyClusterData(InActor);
World->DestroyActor(InActor);
if (ParentLOD != nullptr && !ParentLOD->HasValidSubActors())
{
DestroyCluster(ParentLOD);
}
}
void UChildActorComponent::DestroyChildActor(const bool bRequiresRename)
{
// If we own an Actor, kill it now
if(ChildActor != nullptr && !GExitPurge)
{
// if still alive, destroy, otherwise just clear the pointer
if (!ChildActor->IsPendingKillOrUnreachable())
{
#if WITH_EDITOR
if (CachedInstanceData)
{
delete CachedInstanceData;
CachedInstanceData = nullptr;
}
#else
check(!CachedInstanceData);
#endif
// If we're already tearing down we won't be needing this
if (!HasAnyFlags(RF_BeginDestroyed))
{
CachedInstanceData = new FChildActorComponentInstanceData(this);
}
UWorld* World = ChildActor->GetWorld();
// World may be nullptr during shutdown
if(World != nullptr)
{
UClass* ChildClass = ChildActor->GetClass();
// We would like to make certain that our name is not going to accidentally get taken from us while we're destroyed
// so we increment ClassUnique beyond our index to be certain of it. This is ... a bit hacky.
ChildClass->ClassUnique = FMath::Max(ChildClass->ClassUnique, ChildActor->GetFName().GetNumber());
if (bRequiresRename)
{
const FString ObjectBaseName = FString::Printf(TEXT("DESTROYED_%s_CHILDACTOR"), *ChildClass->GetName());
const ERenameFlags RenameFlags = ((GetWorld()->IsGameWorld() || IsLoading()) ? REN_DoNotDirty | REN_ForceNoResetLoaders : REN_DoNotDirty);
ChildActor->Rename(*MakeUniqueObjectName(ChildActor->GetOuter(), ChildClass, *ObjectBaseName).ToString(), nullptr, RenameFlags);
}
World->DestroyActor(ChildActor);
}
}
ChildActor = nullptr;
}
}
void FHierarchicalLODUtilities::DestroyLODActor(ALODActor* InActor)
{
const FScopedTransaction Transaction(LOCTEXT("UndoAction_DeleteLODActor", "Delete LOD Actor"));
UWorld* World = InActor->GetWorld();
World->Modify();
InActor->Modify();
ALODActor* ParentActor = FHierarchicalLODUtilities::GetParentLODActor(InActor);
FHierarchicalLODUtilities::DestroyCluster(InActor);
World->DestroyActor(InActor);
if (ParentActor && !ParentActor->HasValidSubActors())
{
ParentActor->Modify();
FHierarchicalLODUtilities::DestroyLODActor(ParentActor);
}
}
void AGameplayDebuggerPlayerManager::UpdateAuthReplicators()
{
UWorld* World = GetWorld();
for (int32 Idx = PlayerData.Num() - 1; Idx >= 0; Idx--)
{
FGameplayDebuggerPlayerData& TestData = PlayerData[Idx];
if (!IsValid(TestData.Replicator) || !IsValid(TestData.Replicator->GetReplicationOwner()))
{
if (IsValid(TestData.Replicator))
{
World->DestroyActor(TestData.Replicator);
}
if (IsValid(TestData.Controller))
{
TestData.Controller->Cleanup();
}
PlayerData.RemoveAt(Idx, 1, false);
}
}
for (FConstPlayerControllerIterator It = World->GetPlayerControllerIterator(); It; It++)
{
APlayerController* TestPC = *It;
if (TestPC && !TestPC->IsA<ADebugCameraController>())
{
const bool bNeedsReplicator = (GetReplicator(*TestPC) == nullptr);
if (bNeedsReplicator)
{
AGameplayDebuggerCategoryReplicator* Replicator = World->SpawnActorDeferred<AGameplayDebuggerCategoryReplicator>(AGameplayDebuggerCategoryReplicator::StaticClass(), FTransform::Identity);
Replicator->SetReplicatorOwner(TestPC);
Replicator->FinishSpawning(FTransform::Identity, true);
}
}
}
PrimaryActorTick.TickInterval = PlayerData.Num() ? 5.0f : 0.5f;
}
SVisualLogger::~SVisualLogger()
{
UWorld* World = NULL;
#if WITH_EDITOR
FCategoryFiltersManager::Get().SavePresistentData();
UEditorEngine *EEngine = Cast<UEditorEngine>(GEngine);
if (GIsEditor && EEngine != NULL)
{
// lets use PlayWorld during PIE/Simulate and regular world from editor otherwise, to draw debug information
World = EEngine->PlayWorld != NULL ? EEngine->PlayWorld : EEngine->GetEditorWorldContext().World();
}
else
#endif
if (!GIsEditor)
{
World = GEngine->GetWorld();
}
if (World == NULL)
{
World = GWorld;
}
if (World)
{
for (TActorIterator<AVisualLoggerRenderingActor> It(World); It; ++It)
{
World->DestroyActor(*It);
}
}
UDebugDrawService::Unregister(DrawOnCanvasDelegateHandle);
VisualLoggerCanvasRenderer.Reset();
FVisualLogger::Get().RemoveDevice(InternalDevice.Get());
InternalDevice.Reset();
}
void UChildActorComponent::DestroyChildActor()
{
// If we own an Actor, kill it now
if(ChildActor != nullptr && !GExitPurge)
{
// if still alive, destroy, otherwise just clear the pointer
if(!ChildActor->IsPendingKill())
{
#if WITH_EDITOR
if (CachedInstanceData)
{
delete CachedInstanceData;
}
#else
check(!CachedInstanceData);
#endif
CachedInstanceData = new FChildActorComponentInstanceData(this);
UWorld* World = ChildActor->GetWorld();
// World may be nullptr during shutdown
if(World != nullptr)
{
UClass* ChildClass = ChildActor->GetClass();
// We would like to make certain that our name is not going to accidentally get taken from us while we're destroyed
// so we increment ClassUnique beyond our index to be certain of it. This is ... a bit hacky.
ChildClass->ClassUnique = FMath::Max(ChildClass->ClassUnique, ChildActor->GetFName().GetNumber());
const FString ObjectBaseName = FString::Printf(TEXT("DESTROYED_%s_CHILDACTOR"), *ChildClass->GetName());
ChildActor->Rename(*MakeUniqueObjectName(ChildActor->GetOuter(), ChildClass, *ObjectBaseName).ToString(), nullptr, REN_DoNotDirty);
World->DestroyActor(ChildActor);
}
}
ChildActor = nullptr;
}
}
void UChildActorComponent::DestroyChildActor()
{
// If we own an Actor, kill it now unless we don't have authority on it, for that we rely on the server
// If the level that the child actor is being removed then don't destory the child actor so re-adding it doesn't
// need to create a new actor
if (ChildActor && ChildActor->HasAuthority() && !GetOwner()->GetLevel()->bIsBeingRemoved)
{
if (!GExitPurge)
{
// if still alive, destroy, otherwise just clear the pointer
if (!ChildActor->IsPendingKillOrUnreachable())
{
#if WITH_EDITOR
if (CachedInstanceData)
{
delete CachedInstanceData;
CachedInstanceData = nullptr;
}
#else
check(!CachedInstanceData);
#endif
// If we're already tearing down we won't be needing this
if (!HasAnyFlags(RF_BeginDestroyed) && !IsUnreachable())
{
CachedInstanceData = new FChildActorComponentInstanceData(this);
}
UWorld* World = ChildActor->GetWorld();
// World may be nullptr during shutdown
if (World != nullptr)
{
UClass* ChildClass = ChildActor->GetClass();
// We would like to make certain that our name is not going to accidentally get taken from us while we're destroyed
// so we increment ClassUnique beyond our index to be certain of it. This is ... a bit hacky.
int32& ClassUnique = ChildActor->GetOutermost()->ClassUniqueNameIndexMap.FindOrAdd(ChildClass->GetFName());
ClassUnique = FMath::Max(ClassUnique, ChildActor->GetFName().GetNumber());
// If we are getting here due to garbage collection we can't rename, so we'll have to abandon this child actor name and pick up a new one
if (!IsGarbageCollecting())
{
const FString ObjectBaseName = FString::Printf(TEXT("DESTROYED_%s_CHILDACTOR"), *ChildClass->GetName());
const ERenameFlags RenameFlags = ((GetWorld()->IsGameWorld() || IsLoading()) ? REN_DoNotDirty | REN_ForceNoResetLoaders : REN_DoNotDirty);
ChildActor->Rename(*MakeUniqueObjectName(ChildActor->GetOuter(), ChildClass, *ObjectBaseName).ToString(), nullptr, RenameFlags);
}
else
{
ChildActorName = NAME_None;
if (CachedInstanceData)
{
CachedInstanceData->ChildActorName = NAME_None;
}
}
World->DestroyActor(ChildActor);
}
}
}
ChildActor = nullptr;
}
}
void FSequencerActorBindingManager::SpawnOrDestroyObjectsForInstance( TSharedRef<FMovieSceneInstance> MovieSceneInstance, const bool bDestroyAll )
{
bool bAnyLevelActorsChanged = false;
// Get the list of puppet objects for the movie scene
TArray< TSharedRef<FPuppetActorInfo> >& PuppetObjects = InstanceToPuppetObjectsMap.FindOrAdd( MovieSceneInstance );
UMovieScene* MovieScene = MovieSceneInstance->GetMovieScene();
// Remove any puppet objects that we no longer need
{
for( auto PuppetObjectIndex = 0; PuppetObjectIndex < PuppetObjects.Num(); ++PuppetObjectIndex )
{
if( PuppetObjects[ PuppetObjectIndex ]->GetType() == EPuppetObjectType::Actor )
{
TSharedRef< FPuppetActorInfo > PuppetActorInfo = StaticCastSharedRef< FPuppetActorInfo >( PuppetObjects[ PuppetObjectIndex ] );
// Figure out if we still need this puppet actor
bool bShouldDestroyActor = true;
if( !bDestroyAll )
{
for( auto SpawnableIndex = 0; SpawnableIndex < MovieScene->GetSpawnableCount(); ++SpawnableIndex )
{
auto& Spawnable = MovieScene->GetSpawnable( SpawnableIndex );
if( Spawnable.GetGuid() == PuppetActorInfo->SpawnableGuid )
{
bShouldDestroyActor = false;
break;
}
}
}
if( bShouldDestroyActor )
{
AActor* PuppetActor = PuppetActorInfo->PuppetActor.Get();
if( PuppetActor != NULL )
{
UWorld* PuppetWorld = PuppetActor->GetWorld();
if( ensure( PuppetWorld != NULL ) )
{
// Destroy this actor
{
// Ignored unless called while game is running
const bool bNetForce = false;
// We don't want to dirty the level for puppet actor changes
const bool bShouldModifyLevel = false;
if( !bAnyLevelActorsChanged )
{
DeselectAllPuppetObjects();
}
// Actor should never be selected in the editor at this point. We took care of that up above.
ensure( !PuppetActor->IsSelected() );
const bool bWasDestroyed = PuppetWorld->DestroyActor( PuppetActor, bNetForce, bShouldModifyLevel );
if( bWasDestroyed )
{
bAnyLevelActorsChanged = true;
PuppetObjects.RemoveAt( PuppetObjectIndex-- );
}
else
{
// @todo sequencer: At least one puppet couldn't be cleaned up!
}
}
}
}
else
{
// Actor is no longer valid (probably the world was destroyed)
}
}
}
else
{
check(0); // Unhandled type
}
}
}
if( !bDestroyAll )
{
for( auto SpawnableIndex = 0; SpawnableIndex < MovieScene->GetSpawnableCount(); ++SpawnableIndex )
{
FMovieSceneSpawnable& Spawnable = MovieScene->GetSpawnable( SpawnableIndex );
// Must have a valid world for us to be able to do this
if( ActorWorld != NULL )
{
// Do we already have a puppet for this spawnable?
bool bIsAlreadySpawned = false;
for( auto PuppetIndex = 0; PuppetIndex < PuppetObjects.Num(); ++PuppetIndex )
{
auto& PuppetObject = PuppetObjects[ PuppetIndex ];
if( PuppetObject->SpawnableGuid == Spawnable.GetGuid() )
{
bIsAlreadySpawned = true;
break;
}
}
if( !bIsAlreadySpawned )
{
UClass* GeneratedClass = Spawnable.GetClass();
if ( GeneratedClass != NULL && GeneratedClass->IsChildOf(AActor::StaticClass()))
{
AActor* ActorCDO = CastChecked< AActor >( GeneratedClass->ClassDefaultObject );
const FVector SpawnLocation = ActorCDO->GetRootComponent()->RelativeLocation;
const FRotator SpawnRotation = ActorCDO->GetRootComponent()->RelativeRotation;
// @todo sequencer: We should probably spawn these in a specific sub-level!
// World->CurrentLevel = ???;
const FName PuppetActorName = NAME_None;
// Override the object flags so that RF_Transactional is not set. Puppet actors are never transactional
// @todo sequencer: These actors need to avoid any transaction history. However, RF_Transactional can currently be set on objects on the fly!
const EObjectFlags ObjectFlags = RF_Transient; // NOTE: We are omitting RF_Transactional intentionally
// @todo sequencer livecapture: Consider using SetPlayInEditorWorld() and RestoreEditorWorld() here instead
// @todo sequencer actors: We need to make sure puppet objects aren't copied into PIE/SIE sessions! They should be omitted from that duplication!
// Spawn the puppet actor
FActorSpawnParameters SpawnInfo;
SpawnInfo.Name = PuppetActorName;
SpawnInfo.ObjectFlags = ObjectFlags;
AActor* NewActor = ActorWorld->SpawnActor( GeneratedClass, &SpawnLocation, &SpawnRotation, SpawnInfo );
if( NewActor )
{
// @todo sequencer: We're naming the actor based off of the spawnable's name. Is that really what we want?
FActorLabelUtilities::SetActorLabelUnique(NewActor, Spawnable.GetName());
// Actor was spawned OK!
// Keep track of this actor
TSharedRef< FPuppetActorInfo > NewPuppetInfo( new FPuppetActorInfo() );
NewPuppetInfo->SpawnableGuid = Spawnable.GetGuid();
NewPuppetInfo->PuppetActor = NewActor;
PuppetObjects.Add( NewPuppetInfo );
}
else
{
// Actor failed to spawn
// @todo sequencer: What should we do when this happens to one or more actors?
}
}
}
}
}
}
}