method to check if zone has players inside it

mob ai check if zone has no players mobs need not perform actions

src/engine/ai/MobileFSMManager.java

@@ -9,6 +9,7 @@
 
 package engine.ai;
 
+import engine.gameManager.SessionManager;
 import engine.gameManager.ZoneManager;
 import engine.objects.Mob;
 import engine.objects.Zone;
@@ -67,7 +68,10 @@ public class MobileFSMManager {
 
 	private void execution() {
 
-		//Load zone threshold once.
+		//no players online means no mob action required
+		if(SessionManager.getActivePlayerCharacterCount() <= 0){
+			return;
+		}
 
 		long mobPulse = System.currentTimeMillis() + MBServerStatics.AI_PULSE_MOB_THRESHOLD;
 
@@ -79,7 +83,11 @@ public class MobileFSMManager {
 			if (System.currentTimeMillis() > mobPulse) {
 
 				for (Zone zone : ZoneManager.getAllZones()) {
-
+					//check if any players are in the zone
+					if(zone.hasPlayers() == false){
+						//if zone has no players no need for mobs to do anything
+						return;
+					}
 					for (Mob mob : zone.zoneMobSet) {
 
 						try {

src/engine/objects/Zone.java

@@ -13,6 +13,7 @@ import engine.Enum;
 import engine.InterestManagement.HeightMap;
 import engine.db.archive.DataWarehouse;
 import engine.gameManager.DbManager;
+import engine.gameManager.SessionManager;
 import engine.gameManager.ZoneManager;
 import engine.math.Bounds;
 import engine.math.Vector2f;
@@ -25,6 +26,7 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
@@ -509,5 +511,15 @@ public class Zone extends AbstractGameObject {
 	public float getWorldAltitude() {
 		return worldAltitude;
 	}
+	public boolean hasPlayers(){
+		for(PlayerCharacter pc : SessionManager.getAllActivePlayers()){
+			for(Zone zone : ZoneManager.getAllZonesIn(pc.getLoc())) {
+				if(zone.equals(this)){
+					return true;
+				}
+			}
+		}
+		return false;
+	}
 
 }