Relevant methods made static and moved into NPCManager

src/engine/powers/poweractions/ClearAggroPowerAction.java

@@ -32,8 +32,8 @@ public class ClearAggroPowerAction extends AbstractPowerAction {
 	protected void _startAction(AbstractCharacter source, AbstractWorldObject awo, Vector3fImmutable targetLoc, int trains, ActionsBase ab, PowersBase pb) {
 		if (awo != null && awo.getObjectType() == GameObjectType.Mob){
 			((Mob)awo).setNoAggro(true);
-			((Mob)awo).setState(STATE.Patrol);
-		}
+            ((Mob)awo).state = STATE.Patrol;
+        }