New collection utilized

src/engine/objects/Building.java

@@ -63,7 +63,6 @@ public class Building extends AbstractWorldObject {
     public float statAlt;
     public LocalDateTime upgradeDateTime = null;
     public LocalDateTime taxDateTime = null;
-    public ArrayList<Vector3fImmutable> patrolPoints = new ArrayList<>();
     public ArrayList<Vector3fImmutable> sentryPoints = new ArrayList<>();
     public TaxType taxType = TaxType.NONE;
     public int taxAmount;
@@ -96,6 +95,7 @@ public class Building extends AbstractWorldObject {
     private ConcurrentHashMap<String, Long> timestamps = null;
     private ConcurrentHashMap<Integer, BuildingFriends> friends;
     private ConcurrentHashMap<Integer, Condemned> condemned;
+    public ArrayList<Vector3fImmutable> patrolPoints;
     public ProtectionState protectionState = ProtectionState.NONE;
     private ArrayList<Building> children = null;
 
@@ -926,8 +926,7 @@ public class Building extends AbstractWorldObject {
                 if (this.blueprintUUID == 0)
                     this.setHealth(healthMax);
 
-                if (blueprint.getBuildingGroup().equals(BuildingGroup.BARRACK))
-                    this.patrolPoints = DbManager.BuildingQueries.LOAD_PATROL_POINTS(this);
+                this.patrolPoints = BuildingManager._buildingPatrolPoints.computeIfAbsent(this.getObjectUUID(), k -> new ArrayList<>());
 
             } else {
                 this.healthMax = 100000;  // Structures with no blueprint mesh