private void InitItemsDatabase()
 {
     if (itemsDatabase == null)
     {
         itemsDatabase = EditorUtils.GetAsset <LevelItemsDatabase>();
         itemsDatabase.Init();
     }
 }
    private void OnEnable()
    {
        itemsDatabase = (LevelItemsDatabase)target;

        ItemsProperty = serializedObject.FindProperty(itemsPropertyName);

        Init();
    }