Breadth First Search; considering use of diagonals for A*PF

AdventurePlayerController.cpp

@@ -41,6 +41,7 @@ void AAdventurePlayerController::SetupInputComponent()
 
 void AAdventurePlayerController::LeftClick()
 {
+    if (!IsValid(HoveredHex)) { return; }
     if (bInPlacementMode) { PlaceObject(PlaceObjClass, HoveredHex); }
 }
 
@@ -66,10 +67,13 @@ void AAdventurePlayerController::PlaceObject(TSubclassOf<AMapObject> MapObjClass
 {
 	// spawn this Actor at World location of Origin Hex;
     AMapObject* SpawnedObj = World->SpawnActor<AMapObject>(MapObjClass, FTransform(OnHex->GetActorTransform().GetLocation()));
-    // Origin = OnHex;
     SpawnedObj->Origin = OnHex;
+
 	// set Hexes to bOccupied according to BlockVectors;
-    OnHex->bFree = false;
-	// set bPlacementMode = false;
-	// 
+    OnHex->bFree = false; // exact Hexes are eventually to be determined by MapObjectClass's BlockingVectors
+
+    MapRef->MapObjects.Add(OnHex, SpawnedObj); // maybe this as well
+    MapRef->IncID++;
+    SpawnedObj->ID = MapRef->IncID;
+    MapRef->MapObjectsByID.Add(MapRef->IncID, SpawnedObj);
 }