Fix game plugins initialization order in Editor play mode to mock the standalone game

#458

Source/Editor/States/PlayingState.cs

@@ -131,12 +131,11 @@ namespace FlaxEditor.States
             _duplicateScenes.GatherSceneData();
             Editor.Internal_SetPlayMode(true);
             IsPaused = false;
+            PluginManager.InitializeGamePlugins();
             _duplicateScenes.CreateScenes();
             SceneDuplicated?.Invoke();
             RestoreSelection();
 
-            PluginManager.InitializeGamePlugins();
-            
             Editor.OnPlayBegin();
         }
 
@@ -165,6 +164,7 @@ namespace FlaxEditor.States
             // Restore editor scene
             SceneRestoring?.Invoke();
             _duplicateScenes.DeletedScenes();
+            PluginManager.DeinitializeGamePlugins();
             Editor.Internal_SetPlayMode(false);
             _duplicateScenes.RestoreSceneData();
             SceneRestored?.Invoke();
@@ -177,8 +177,6 @@ namespace FlaxEditor.States
             IsPaused = true;
             RestoreSelection();
 
-            PluginManager.DeinitializeGamePlugins();
-            
             Editor.OnPlayEnd();
         }
     }

Source/Engine/Scripting/Plugins/PluginManager.cs

@@ -82,10 +82,8 @@ namespace FlaxEngine
             //return !pluginDesc.DisabledByDefault;
         }
 
-        /// <summary>
-        /// Initialize all <see cref="GamePlugin"/>
-        /// </summary>
-        public static void InitializeGamePlugins()
+#if FLAX_EDITOR
+        internal static void InitializeGamePlugins()
         {
             for (var i = 0; i < _gamePlugins.Count; i++)
             {
@@ -93,16 +91,14 @@ namespace FlaxEngine
             }
         }
 
-        /// <summary>
-        /// Deinitialize all <see cref="GamePlugin"/>
-        /// </summary>
-        public static void DeinitializeGamePlugins()
+        internal static void DeinitializeGamePlugins()
         {
             for (var i = _gamePlugins.Count - 1; i >= 0; i--)
             {
                 InvokeDeinitialize(_gamePlugins[i]);
             }
         }
+#endif
 
         private static void InvokeInitialize(Plugin plugin)
         {