hard cap 3 box limit

src/engine/InterestManagement/InterestManager.java

@@ -28,6 +28,7 @@ import engine.server.MBServerStatics;
 import org.pmw.tinylog.Logger;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.HashSet;
 
 import static engine.math.FastMath.sqr;
@@ -37,6 +38,7 @@ public enum InterestManager implements Runnable {
     INTERESTMANAGER;
 
     private static long lastTime;
+    public static HashMap<String,ArrayList<PlayerCharacter>> playersByMachine = new HashMap<>();
 
     InterestManager() {
         Logger.info(" Interest Management thread is running.");
@@ -522,12 +524,24 @@ public enum InterestManager implements Runnable {
         if (origin == null)
             return;
 
+        if(playersByMachine.containsKey(origin.machineID)){
+            if(playersByMachine.get(origin.machineID) == null){
+                ArrayList<PlayerCharacter> newList = new ArrayList<>();
+                newList.add(player);
+                playersByMachine.put(origin.machineID,newList);
+            } else{
+                if(playersByMachine.get(origin.machineID).size() >= 3){
+                    origin.disconnect();
+                }else{
+                    playersByMachine.get(origin.machineID).add(player);
+                }
+            }
+        }
         // Update loaded upbjects lists
 
         player.setDirtyLoad(true);
         updateStaticList(player, origin);
         updateMobileList(player, origin);
-
     }
 
     public synchronized void HandleLoadForTeleport(PlayerCharacter playerCharacter) {