Initial commit

skills/assets/unity-package/Runtime/GameObjectGuid.cs

@@ -0,0 +1,111 @@
+using System;
+using UnityEngine;
+
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+namespace UnityEditorToolkit.Runtime
+{
+    /// <summary>
+    /// GameObject에 영구적인 GUID를 부여하는 컴포넌트
+    /// instance_id는 세션마다 변경되므로 GUID를 사용하여 영구 식별
+    /// </summary>
+    [DisallowMultipleComponent]
+    [ExecuteAlways]
+    public class GameObjectGuid : MonoBehaviour
+    {
+        [SerializeField, HideInInspector]
+        private string guid = string.Empty;
+
+        /// <summary>
+        /// GameObject의 고유 GUID
+        /// </summary>
+        public string Guid
+        {
+            get
+            {
+                if (string.IsNullOrEmpty(guid))
+                {
+                    GenerateGuid();
+                }
+                return guid;
+            }
+        }
+
+        private void Awake()
+        {
+            // GUID가 없으면 생성
+            if (string.IsNullOrEmpty(guid))
+            {
+                GenerateGuid();
+            }
+        }
+
+        private void GenerateGuid()
+        {
+            guid = System.Guid.NewGuid().ToString();
+
+#if UNITY_EDITOR
+            // EditorOnly: 변경사항을 씬에 저장
+            if (!Application.isPlaying)
+            {
+                EditorUtility.SetDirty(this);
+            }
+#endif
+
+            Debug.Log($"[GameObjectGuid] Generated GUID for '{gameObject.name}': {guid}");
+        }
+
+        /// <summary>
+        /// GUID 재생성 (에디터 전용)
+        /// </summary>
+        [ContextMenu("Regenerate GUID")]
+        public void RegenerateGuid()
+        {
+#if UNITY_EDITOR
+            if (EditorUtility.DisplayDialog(
+                "Regenerate GUID",
+                $"Are you sure you want to regenerate GUID for '{gameObject.name}'?\n\nThis will break database references!",
+                "Yes", "Cancel"))
+            {
+                guid = string.Empty;
+                GenerateGuid();
+                Debug.LogWarning($"[GameObjectGuid] GUID regenerated for '{gameObject.name}'");
+            }
+#endif
+        }
+
+#if UNITY_EDITOR
+        /// <summary>
+        /// Inspector에서 GUID 표시 (읽기 전용)
+        /// </summary>
+        [CustomEditor(typeof(GameObjectGuid))]
+        public class GameObjectGuidEditor : Editor
+        {
+            public override void OnInspectorGUI()
+            {
+                var guidComp = (GameObjectGuid)target;
+
+                EditorGUILayout.HelpBox(
+                    "This component assigns a persistent GUID to the GameObject.\n" +
+                    "The GUID is used for database synchronization and remains constant across Unity sessions.",
+                    MessageType.Info);
+
+                EditorGUILayout.Space();
+
+                GUI.enabled = false;
+                EditorGUILayout.TextField("GUID", guidComp.Guid);
+                GUI.enabled = true;
+
+                EditorGUILayout.Space();
+
+                if (GUILayout.Button("Regenerate GUID (⚠️ WARNING)"))
+                {
+                    guidComp.RegenerateGuid();
+                }
+            }
+        }
+#endif
+    }
+}