feat: 서버 매니저 싱글톤으로 전환

Gameton-06/Assets/Gameton/Scenes/Main.unity

@@ -122,50 +122,6 @@ NavMeshSettings:
     debug:
       m_Flags: 0
   m_NavMeshData: {fileID: 0}
---- !u!1 &195665660
-GameObject:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  serializedVersion: 6
-  m_Component:
-  - component: {fileID: 195665661}
-  - component: {fileID: 195665662}
-  m_Layer: 0
-  m_Name: TON.Backend
-  m_TagString: Untagged
-  m_Icon: {fileID: 0}
-  m_NavMeshLayer: 0
-  m_StaticEditorFlags: 0
-  m_IsActive: 1
---- !u!4 &195665661
-Transform:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 195665660}
-  serializedVersion: 2
-  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: 0}
-  m_LocalScale: {x: 1, y: 1, z: 1}
-  m_ConstrainProportionsScale: 0
-  m_Children: []
-  m_Father: {fileID: 384034828}
-  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
---- !u!114 &195665662
-MonoBehaviour:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 195665660}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 997aacd350268d041bba7f34cf767394, type: 3}
-  m_Name: 
-  m_EditorClassIdentifier: 
 --- !u!1 &384034827
 GameObject:
   m_ObjectHideFlags: 0
@@ -195,8 +151,7 @@ Transform:
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
-  m_Children:
-  - {fileID: 195665661}
+  m_Children: []
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!114 &384034829

Gameton-06/Assets/Gameton/Scripts/Backend/BackendManager.cs

@@ -10,11 +10,11 @@ namespace TON
     /// <summary>
     /// 랭킹 데이터 관리를 위한 뒤끝 서버 매니저
     /// </summary>
-    public class BackendManager : MonoBehaviour
+    public class BackendManager : SingletonBase<BackendManager>
     {
         private string PASSWORD = "O-xmP0-=rp&kCq^";
 
-        void Start()
+        public void Initalize()
         {
             var bro = Backend.Initialize(); // 뒤끝 초기화
 
@@ -97,6 +97,33 @@ namespace TON
             return savedID;
         }
 
+        // 캐릭터 닉네임 생성 시 유저 데이터에 닉네임 변경 적용용
+        // 닉네임 변경 메소드
+        public void ChangeNickname(string newNickname, System.Action<bool, string> callback)
+        {
+            // 닉네임 형식 검증
+            if (string.IsNullOrEmpty(newNickname) || newNickname.Length < 2)
+            {
+                callback?.Invoke(false, "닉네임은 2자 이상이어야 합니다.");
+                return;
+            }
+
+            // 뒤끝 서버 닉네임 변경 요청
+            Backend.BMember.UpdateNickname(newNickname, bro =>
+            {
+                if (bro.IsSuccess())
+                {
+                    Debug.Log("닉네임 변경 성공: " + newNickname);
+                    callback?.Invoke(true, "닉네임이 변경되었습니다.");
+                }
+                else
+                {
+                    Debug.LogError("닉네임 변경 실패: " + bro.GetMessage());
+                    callback?.Invoke(false, "닉네임 변경 실패: " + bro.GetMessage());
+                }
+            });
+        }
+
         private void StartGame()
         {
             // 로그인 성공 후 게임 시작 로직

Gameton-06/Assets/Gameton/Scripts/Common/Main.cs

@@ -25,6 +25,7 @@ namespace TON
             if (isIniaialized)
                 return;
             // 게임에 필요한 필수 시스템 초기화
+            BackendManager.Singleton.Initalize();
             UIManager.Singleton.Initalize();
 
             // TODO : GameDataModel.Singleton.Initalize();