reformat code + level load events

Source/Game/GameMode/GameMode.cs

@@ -2,6 +2,5 @@
 {
     public abstract class GameMode
     {
-        
     }
 }

Source/Game/GameMode/GameModeManager.cs

@@ -1,5 +1,7 @@
-using Cabrito;
+using System;
+using FlaxEngine;
 using FlaxEngine.Networking;
+using Console = Cabrito.Console;
 
 namespace Game
 {
@@ -8,6 +10,19 @@ namespace Game
         public static void Init()
         {
             NetworkManager.OnMessage += OnClientConnected;
+            Level.SceneLoaded += OnLevelLoaded;
+            Console.Print("level was loaded: " + Level.IsAnySceneLoaded);
+        }
+
+        public static void Cleanup()
+        {
+            NetworkManager.OnMessage -= OnClientConnected;
+            Level.SceneLoaded -= OnLevelLoaded;
+        }
+
+        public static void OnLevelLoaded(Scene scene, Guid assetGuid)
+        {
+            Console.Print("level loaded");
         }
 
         public static bool OnClientConnected(NetworkMessage message)