work

src/engine/objects/Building.java

@@ -892,7 +892,6 @@ public class Building extends AbstractWorldObject {
 
         this.parentZone = ZoneManager.getZoneByUUID(this.parentZoneUUID);
         this.parentZone.zoneBuildingSet.add(this);
-        this.updateNavMesh(); // update the navmesh of the parent zone
 
         // Lookup building blueprint
 
@@ -1003,6 +1002,8 @@ public class Building extends AbstractWorldObject {
 
         if (this.upgradeDateTime != null)
             BuildingManager.submitUpgradeJob(this);
+
+        this.updateNavMesh(); // update the navmesh of the parent zone
     }
 
     public synchronized boolean setOwner(AbstractCharacter newOwner) {
@@ -1537,6 +1538,6 @@ public class Building extends AbstractWorldObject {
 
         MeshBounds meshBounds = Bounds.meshBoundsCache.get(this.getMeshUUID());
         if(meshBounds != null)
-            this.parentZone.navMesh.subtract(meshBounds.getArea());
+            this.parentZone.navMesh.subtract(meshBounds.getArea(this.loc.x,this.loc.z));
     }
 }