void FNavigationOctree::AppendToNode(const FOctreeElementId& Id, INavRelevantInterface* NavElement, const FBox& Bounds, FNavigationOctreeElement& Element)
{
FNavigationOctreeElement OrgData = GetElementById(Id);
Element = OrgData;
Element.Bounds = Bounds + OrgData.Bounds.GetBox();
if (NavElement)
{
SCOPE_CYCLE_COUNTER(STAT_Navigation_GatheringNavigationModifiersSync);
NavElement->GetNavigationData(*Element.Data);
}
// shrink arrays before counting memory
// it will be reallocated when adding to octree and RemoveNode will have different value returned by GetAllocatedSize()
Element.Shrink();
const int32 OrgElementMemory = OrgData.GetAllocatedSize();
const int32 NewElementMemory = Element.GetAllocatedSize();
const int32 MemoryDelta = NewElementMemory - OrgElementMemory;
NodesMemory += MemoryDelta;
INC_MEMORY_STAT_BY(STAT_Navigation_CollisionTreeMemory, MemoryDelta);
RemoveElement(Id);
AddElement(Element);
}
void FNavigationOctree::AddNode(UObject* ElementOb, INavRelevantInterface* NavElement, const FBox& Bounds, FNavigationOctreeElement& Data)
{
Data.Owner = ElementOb;
Data.Bounds = Bounds;
UActorComponent* ActorComp = Cast<UActorComponent>(ElementOb);
if (bGatherGeometry && ActorComp)
{
ComponentExportDelegate.ExecuteIfBound(ActorComp, Data.Data);
}
if (NavElement)
{
SCOPE_CYCLE_COUNTER(STAT_Navigation_GatheringNavigationModifiersSync);
NavElement->GetNavigationData(Data.Data);
}
// shrink arrays before counting memory
// it will be reallocated when adding to octree and RemoveNode will have different value returned by GetAllocatedSize()
Data.Shrink();
const int32 ElementMemory = Data.GetAllocatedSize();
NodesMemory += ElementMemory;
INC_MEMORY_STAT_BY(STAT_Navigation_CollisionTreeMemory, ElementMemory);
AddElement(Data);
}
void FNavigationOctree::AddNode(UObject* ElementOb, INavRelevantInterface* NavElement, const FBox& Bounds, FNavigationOctreeElement& Element)
{
// we assume NavElement is ElementOb already cast
Element.Bounds = Bounds;
if (NavElement)
{
const ENavDataGatheringMode GatheringMode = NavElement->GetGeometryGatheringMode();
bool bDoInstantGathering = ((GatheringMode == ENavDataGatheringMode::Default && DefaultGeometryGatheringMode == ENavDataGatheringMode::Instant)
|| GatheringMode == ENavDataGatheringMode::Instant);
if (bGatherGeometry)
{
UActorComponent* ActorComp = Cast<UActorComponent>(ElementOb);
if (ActorComp)
{
if (bDoInstantGathering)
{
ComponentExportDelegate.ExecuteIfBound(ActorComp, *Element.Data);
}
else
{
Element.Data->bPendingLazyGeometryGathering = true;
Element.Data->bSupportsGatheringGeometrySlices = NavElement && NavElement->SupportsGatheringGeometrySlices();
}
}
}
SCOPE_CYCLE_COUNTER(STAT_Navigation_GatheringNavigationModifiersSync);
if (bDoInstantGathering)
{
NavElement->GetNavigationData(*Element.Data);
}
else
{
Element.Data->bPendingLazyModifiersGathering = true;
}
}
// shrink arrays before counting memory
// it will be reallocated when adding to octree and RemoveNode will have different value returned by GetAllocatedSize()
Element.Shrink();
const int32 ElementMemory = Element.GetAllocatedSize();
NodesMemory += ElementMemory;
INC_MEMORY_STAT_BY(STAT_Navigation_CollisionTreeMemory, ElementMemory);
AddElement(Element);
}