Create PlayerSwapHandItemsListener.java

src/main/java/com/nexia/core/listeners/factory/PlayerSwapHandItemsListener.java

@@ -0,0 +1,19 @@
+package com.nexia.core.listeners.factory;
+
+import com.combatreforged.factory.api.event.player.PlayerSwapHandItemsEvent;
+import com.nexia.core.games.util.LobbyUtil;
+import com.nexia.core.utilities.player.NexiaPlayer;
+
+public class PlayerSwapHandItemsListener {
+    public void registerListener(){
+        PlayerSwapHandItemsEvent.BACKEND.register(playerDropItemEvent -> {
+
+            NexiaPlayer player = new NexiaPlayer(playerDropItemEvent.getPlayer());
+
+            if(LobbyUtil.isLobbyWorld(player.unwrap().getLevel())) {
+                playerDropItemEvent.setCancelled(true);
+                return;
+            }
+        });
+    }
+}