Is there anyway to batch renaming via Editor [not on Runtime] multiple game objects in the hierarchy ?

Question

I feel like this is a common need for many. Is there any proper way to rename multiple objects according a linear sequence or anything close to that.

Let' say for example I drop 100 objects in my scene in a certain order in the hierarchy, how could I rename them as obj1-obj2-obj3 and so on...

Thank you

Answer 1

Answer by RaptorRush · Aug 10, 2020 at 09:11 PM

Yes, it’s possible using a custom editor window. Like this:

 using UnityEngine;
 using UnityEditor;
 
 public class RenameChildren : EditorWindow {
     private static readonly Vector2Int size = new Vector2Int(250, 100);
     private string childrenPrefix;
     private int startIndex;
     [MenuItem("GameObject/Rename children")] public static void ShowWindow() {
         EditorWindow window = GetWindow<RenameChildren>();
         window.minSize = size;
         window.maxSize = size;
     }
     private void OnGUI() {
         childrenPrefix = EditorGUILayout.TextField("Children prefix", childrenPrefix);
         startIndex = EditorGUILayout.IntField("Start index", startIndex);
         if (GUILayout.Button("Rename children")) {
             GameObject[] selectedObjects = Selection.gameObjects;
             for (int objectI = 0; objectI < selectedObjects.Length; objectI++) {
                 Transform selectedObjectT = selectedObjects[objectI].transform;
                 for (int childI = 0, i = startIndex; childI < selectedObjectT.childCount; childI++) selectedObjectT.GetChild(childI).name = $"{childrenPrefix}{i++}";
             }
         }
     }
 }

To use it:

Save the script in your project.
Go to GameObject/Rename children.
Select the parent of the objects to rename.
Fill the fields and press the button.

img-1.png (22.1 kB)

img-2.png (8.9 kB)

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JonNightcrawler · Aug 08, 2022 at 11:14 AM 0

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I copied the code but for some reason it does not recognize the UnityEditor objects like WindowEditor.

Answer 2

Answer by AmitSMG · May 17, 2021 at 09:58 AM

Thanks @RaptorRush this works perfectly and exactly what i was looking for :)

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Answer 3

Answer by thedooptr · Jun 04, 2021 at 10:12 PM

I couldn't do it can you help me it gives an error alt text

ekran-alıntısı.png (80.9 kB)

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leopessanha74 · Jun 10, 2021 at 04:55 PM 0

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Hi!

You named your class 'Mizaresimleri'

You are passing 'RenameChildren' as an argument to the 'GetWindow<>' command

There's no 'RenameChildren' class in your case.

The command should look as follows:

 GetWindow<Mizaresimleri>

Answer 4

Answer by raiden · Feb 06, 2022 at 07:46 PM

I thought I would add a way to rename selected objects in case you are not naming the child objects.

 using UnityEditor;
 using UnityEngine;
  
 public class RenameSelected : EditorWindow
 {
     // public fields
     public GameObject[] objects;
     
     // private fields
     private static readonly Vector2Int size = new Vector2Int(250, 100);
     private string _gameObjectPrefix;
     private int _startIndex;
     private SerializedObject _serializedObject;
  
     [MenuItem("GameObject/Rename Selected")]
     public static void ShowWindow()
     {
         EditorWindow window = GetWindow<RenameSelected>();
         window.minSize = size;
         window.maxSize = size;
     }
  
     private void OnEnable()
     {
         ScriptableObject target = this;
         _serializedObject = new SerializedObject(target);
     }
  
     private void OnGUI()
     {
         _gameObjectPrefix = EditorGUILayout.TextField("Selected Prefix", _gameObjectPrefix);
         _startIndex = EditorGUILayout.IntField("Start Index", _startIndex);
         
         _serializedObject.Update();
  
         SerializedProperty serializedProperty = _serializedObject.FindProperty("objects");
  
         EditorGUILayout.PropertyField(serializedProperty, true);
  
         if (GUILayout.Button("Rename Objects"))
         {
             
             for (int objectI = 0, i = _startIndex; objectI < serializedProperty.arraySize; objectI++)
             {
                 serializedProperty.GetArrayElementAtIndex(objectI).objectReferenceValue.name = $"{_gameObjectPrefix}{i++}";
             }
         }
         
         _serializedObject.ApplyModifiedProperties();
     }
 }

This will create an array, in the editor window, simply select the order of the GameObjects, then set your prefix and start index, and hit the Rename Objects button.

-Larry

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Quassanex · Aug 03, 2022 at 05:39 PM 0

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Here there is a version that auto-fills the array with currently selected objects in hierarchy.

 using System;
 using UnityEditor;
 using UnityEngine;
   
 public class RenameSelected : EditorWindow
 {
     // public fields
     public GameObject[] objects;
      
     // private fields
     private static readonly Vector2Int size = new Vector2Int(250, 100);
     private string _gameObjectPrefix;
     private int _startIndex;
     private SerializedObject _serializedObject;
   
     [MenuItem("GameObject/Rename Selected")]
     public static void ShowWindow()
     {
         RenameSelected window = GetWindow<RenameSelected>();
         window.minSize = size;
         window.maxSize = size;
         
         // sort gameobjects by sibling index
         var unsortedGameObjects = Selection.gameObjects;
         var sortedGameObjects = new GameObject[unsortedGameObjects.Length];
         for (var i = 0; i < unsortedGameObjects.Length; i++)
         {
             sortedGameObjects[i] = unsortedGameObjects[i];
         }
         Array.Sort(sortedGameObjects, (a, b) => a.transform.GetSiblingIndex().CompareTo(b.transform.GetSiblingIndex()));
 
         window.objects = sortedGameObjects;
     }
   
     private void OnEnable()
     {
         ScriptableObject target = this;
         _serializedObject = new SerializedObject(target);
     }
   
     private void OnGUI()
     {
         _gameObjectPrefix = EditorGUILayout.TextField("Selected Prefix", _gameObjectPrefix);
         _startIndex = EditorGUILayout.IntField("Start Index", _startIndex);
          
         _serializedObject.Update();
   
         SerializedProperty serializedProperty = _serializedObject.FindProperty("objects");
   
         EditorGUILayout.PropertyField(serializedProperty, true);
   
         if (GUILayout.Button("Rename Objects"))
         {
              
             for (int objectI = 0, i = _startIndex; objectI < serializedProperty.arraySize; objectI++)
             {
                 serializedProperty.GetArrayElementAtIndex(objectI).objectReferenceValue.name = $"{_gameObjectPrefix}{i++}";
             }
         }
          
         _serializedObject.ApplyModifiedProperties();
     }
 }

Answer 5

Heres @RaptorRush's code but with an added suffix option (btw thanks raptor absolutely saved me):

 using UnityEngine;
  using UnityEditor;
  
  public class RenameChildren : EditorWindow 
  {
 
      private static readonly Vector2Int size = new Vector2Int(250, 100);
 
      private string childrenPrefix;
      private int startIndex;
      private string childrenSuffix;
 
      [MenuItem("GameObject/Rename children")] public static void ShowWindow() 
      {
          EditorWindow window = GetWindow<RenameChildren>();
          window.minSize = size;
          window.maxSize = size;
      }
 
      private void OnGUI() 
      {
         childrenPrefix = EditorGUILayout.TextField("Children prefix", childrenPrefix);
         childrenSuffix = EditorGUILayout.TextField("Children suffix", childrenSuffix);
 
         startIndex = EditorGUILayout.IntField("Start index", startIndex);
 
         if (GUILayout.Button("Rename children")) 
         {
             GameObject[] selectedObjects = Selection.gameObjects;
             for (int objectI = 0; objectI < selectedObjects.Length; objectI++) 
             {
                 Transform selectedObjectT = selectedObjects[objectI].transform;
                 for (int childI = 0, i = startIndex; childI < selectedObjectT.childCount; childI++) selectedObjectT.GetChild(childI).name = $"{childrenPrefix}{i++}{childrenSuffix}";
             }
         }
     }
 }

Is there anyway to batch renaming via Editor [not on Runtime] multiple game objects in the hierarchy ?

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