fix add NPC

src/engine/devcmd/cmds/AddNPCCmd.java

@@ -13,6 +13,7 @@ import engine.Enum.GameObjectType;
 import engine.InterestManagement.WorldGrid;
 import engine.devcmd.AbstractDevCmd;
 import engine.gameManager.*;
+import engine.math.Vector3fImmutable;
 import engine.objects.*;
 import org.pmw.tinylog.Logger;
 
@@ -70,28 +71,30 @@ public class AddNPCCmd extends AbstractDevCmd {
             throwbackError(pc, "Failed to find zone to place npc in.");
             return;
         }
-
+        Building building = null;
         if (target != null)
             if (target.getObjectType() == GameObjectType.Building) {
-                Building parentBuilding = (Building) target;
-                BuildingManager.addHirelingForWorld(parentBuilding, pc, parentBuilding.getLoc(), parentBuilding.getParentZone(), contract, level);
-                return;
+                building = (Building)target;
             }
-
-        NPC npc = NPC.createNPC(name, contractID,
-                pc.getLoc(), null, zone, (short) level, null);
-
-        if (npc != null) {
-            WorldGrid.addObject(npc, pc);
-            ChatManager.chatSayInfo(pc,
-                    "NPC with ID " + npc.getDBID() + " added");
-            this.setResult(String.valueOf(npc.getDBID()));
+        NPC created;
+        Guild guild = null;
+        Vector3fImmutable loc;
+        if(building != null){
+            guild = building.getGuild();
+            loc = building.loc;
         } else{
-            throwbackError(pc, "Failed to create npc of contract type "
-                    + contractID);
-            Logger.error(
-                    "Failed to create npc of contract type " + contractID);
+            loc = pc.loc;
+        }
+        created = NPC.createNPC(name, contractID, loc, guild, zone, (short)level, building);
+        created.bindLoc = loc;
+        if(building != null) {
+            created.buildingUUID = building.getObjectUUID();
+            created.building = building;
+            NPCManager.slotCharacterInBuilding(created);
         }
+        created.setLoc(created.bindLoc);
+        created.updateDatabase();
+        throwbackInfo(pc, "Created NPC with UUID: " + created.getObjectUUID());
     }
 
     @Override