koobas.hobune.stream
Duplicating object in hierarchy sends it to the bottom?
When I duplicate an object in the scene hierarchy, the newly created object gets sent all the way to the bottom of the list of objects. Then I have to drag it all the way back up to be next to the object I duplicated, since usually I want to group them together. Is there a way to duplicate it so it gets put next to the object I'm duplicating automatically?
I loved this question! You made my day dude! You can write custom scripts for Unity Editor, for more information: https://docs.unity3d.com/ScriptReference/MenuItem.html
And this is simple code, that will allow you Duplicating selected GameObject, and instantly making it as a child! Is that great, isn't it? I love Unity! :D And i added Shortcut for you, just select GameObject and tap CTRL+SHIFT+D , bingo!
using UnityEditor;
using UnityEngine;
public class UnityAnswers_CustomUnityEditorDuplicator : MonoBehaviour {
[MenuItem("Editor Extensions/Duplicate Selected and make it as a child #%d")]
static void DoSomethingWithAShortcutKey()
{
Object prefabRoot = PrefabUtility.GetPrefabParent(Selection.activeGameObject);
if (prefabRoot != null)
PrefabUtility.InstantiatePrefab(prefabRoot);
else
Instantiate(Selection.activeGameObject, Selection.activeGameObject.transform.position, Selection.activeGameObject.transform.rotation, Selection.activeGameObject.transform);
Debug.Log("Sir, i duplicated and made it as my child!");
}
}
Thanks. Wasn't exactly what I needed, but I was able to modify it to do what I wanted.
[$$anonymous$$enuItem("Editor Extensions/Duplicate Selected and make it as a sibling #%d")]
static void DoSomethingWithAShortcut$$anonymous$$ey()
{
GameObject duped = Instantiate(Selection.activeGameObject, Selection.activeGameObject.transform.position, Selection.activeGameObject.transform.rotation);
duped.transform.SetSiblingIndex( Selection.activeGameObject.transform.GetSiblingIndex() + 1);
}
Yeap, my bad:D I updated your code with parenting, because if you will duplicate some child, it will not duplicated right under original GameObject, but in root of hierarchy. So it is the best code:
using UnityEditor;
using UnityEngine;
public class UnityAnswers_CustomUnityEditorDuplicator : $$anonymous$$onoBehaviour {
[$$anonymous$$enuItem("Editor Extensions/Duplicate Selected and make it as a sibling #%d")]
static void DoSomethingWithAShortcut$$anonymous$$ey()
{
GameObject duped = Instantiate(Selection.activeGameObject, Selection.activeGameObject.transform.position, Selection.activeGameObject.transform.rotation, Selection.activeGameObject.transform.parent);
duped.transform.SetSiblingIndex(Selection.activeGameObject.transform.GetSiblingIndex() + 1);
}
}
Hello, Can you modify the script so the duplicate is STILL a instance of a prefab?
If so,
Thanks a Bunch!!!
and Sorry, posted this as an answer.
EDIT: I've fixed some bugs and provided the entire script below.
I'm sorry that this is over a year late, but I believe I've figured this portion out as well:
using UnityEditor;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Text.RegularExpressions;
public class DuplicateAdjacently : $$anonymous$$onoBehaviour
{
[$$anonymous$$enuItem("Editor Extensions/Duplicate Adjacently #%d")]
static void Duplicate()
{
GameObject selectedObject = Selection.activeGameObject;
GameObject prefabParent = PrefabUtility.GetCorrespondingObjectFromSource(Selection.activeGameObject);
// Decide on new name
string pattern = "\\d+$";
string objectIndex = Regex.$$anonymous$$atch(selectedObject.name, pattern).Value;
int indexNumber = int.Parse(objectIndex);
indexNumber++;
string incrementedIndex = indexNumber.ToString();
prefabParent.name = Regex.Replace(selectedObject.name, pattern, incrementedIndex);
// Create new object
GameObject duplicatedObject = PrefabUtility.InstantiatePrefab(prefabParent) as GameObject;
Undo.RegisterCreatedObjectUndo(duplicatedObject, "Duplicate Adjacently");
duplicatedObject.SetActive(selectedObject.activeSelf);
duplicatedObject.transform.parent = selectedObject.transform.parent;
duplicatedObject.transform.localPosition = selectedObject.transform.localPosition;
duplicatedObject.transform.localRotation = selectedObject.transform.localRotation;
duplicatedObject.transform.localScale = selectedObject.transform.localScale;
duplicatedObject.transform.SetSiblingIndex(selectedObject.transform.GetSiblingIndex() + 1);
Selection.activeGameObject = duplicatedObject;
}
}
Thanks much!
Tip: to avoid the manual Regex and honor Project Settings > Editor > Numbering Scheme, use GameObjectUtility.GetUniqueNameForSibling(selectedObject.transform.parent, selectedObject.name) instead.
Also, technically you're renaming the instance, not the prefab, so set the name with duplicatedObject.name = GameObjectUtility.GetUniqueNameForSibling(selectedObject.transform.parent, selectedObject.name);
Combining ideas from https://answers.unity.com/questions/168580/how-do-i-properly-duplicate-an-object-in-a-editor.html (general duplication) and answers here (setting sibling index), I wrote an editor script that supports working in Prefab edit mode and increments the suffix number based on the current Numbering Scheme setting.
I copied the script below but really, Unity Answers is not fit for those long scripts, I think a forum thread would be better (esp. if we bring gradual improvements). I don't see such a thread on Unity forums right now, so I'll just be posting here for now, but if myself or one of you wants to bring further improvements to it, I suggest we open a new thread on the forums and put them there.
In the meantime, I'll put a link to my public repo so there is always the latest version: https://bitbucket.org/hsandt/unity-commons-editor/src/develop/DuplicateGameObjects.cs
and the current script as of 2022-05-10 below so it's accessible directly on this page:
// DuplicateGameObjects.cs
// References:
// - ReplaceGameObjects.cs in same folder for prefab linking and support for additive scenes
// - https://answers.unity.com/questions/168580/how-do-i-properly-duplicate-an-object-in-a-editor.html
// (Anisoropos's answer)
using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.SceneManagement;
public static class DuplicateGameObjects
{
[MenuItem("Edit/Duplicate Below %#d", priority = 120)]
private static void DuplicateSelectionBelow()
{
PrefabStage currentPrefabStage = null;
// Check current stage
Stage currentStage = StageUtility.GetCurrentStage();
if (currentStage is PrefabStage prefabStage)
{
// Prefab edit mode
currentPrefabStage = prefabStage;
}
else if (currentStage is not MainStage)
{
// Not Prefab edit mode nor Main scene, must be a custom stage
Debug.LogWarning("Duplicate Below is not supported in custom stages");
return;
}
var clones = new List<GameObject>();
// Note that Selection.transforms, unlike Selection.objects, only keeps the top-most parent
// if you selected both a parent and a direct or indirect child under it.
// But since duplicating children modifies the parent content, it means that we would get different results
// when duplicating the parent or the child first, so it's more stable to just ignore children.
// "Prefab Mode in Context" pseudo-game-object is also ignored by Selection.transforms,
// unlike Selection.objects, so it's safer on that side too.
foreach (Transform selectedTransform in Selection.transforms)
{
GameObject selectedGameObject = selectedTransform.gameObject;
if (currentPrefabStage != null && selectedGameObject == currentPrefabStage.prefabContentsRoot)
{
// Prefab root is selected in Prefab Stage
// In a prefab, we cannot duplicate the root under itself, since it must have no siblings,
// so skip it. And since Selection.transforms ignores children, we know it's the only selection,
// so just break.
break;
}
// Get new game object name following Project Settings > Editor > Numbering Scheme
string newGameObjectName = GameObjectUtility.GetUniqueNameForSibling(selectedTransform.parent,
selectedGameObject.name);
GameObject clone;
// Support prefab instances
GameObject prefab = PrefabUtility.GetCorrespondingObjectFromSource(selectedGameObject);
if (prefab != null)
{
// Create another prefab instance under same parent as duplicated object
// The stage will be set later with PlaceGameObjectInCurrentStage, the parent can still be set now.
// If working on the Main Stage, the scene will also be set later with MoveGameObjectToScene,
// so don't bother passing the Scene instead of the parent Transform when selectedTransform.parent
// is null.
clone = (GameObject)PrefabUtility.InstantiatePrefab(prefab, selectedTransform.parent);
PrefabUtility.SetPropertyModifications(clone, PrefabUtility.GetPropertyModifications(selectedGameObject));
}
else
{
// The duplicated object is not a prefab, create a standard clone under the same parent
clone = Object.Instantiate(selectedGameObject, selectedTransform.parent);
}
// Place clone in current stage
// This only matters when editing in Prefab Mode
StageUtility.PlaceGameObjectInCurrentStage(clone);
// When selected object is at scene root (only possible in Main Stage, not Prefab Stage,
// since we do nothing in case root is selected, but checking it just in case),
// it will be placed in the active scene by default, so move it to the same scene as the selected object
if (currentPrefabStage == null && selectedTransform.parent == null)
{
SceneManager.MoveGameObjectToScene(clone, selectedTransform.gameObject.scene);
}
// Move clone right under selected object
// This works even with multiple selection under the same parent as GetSiblingIndex is reevaluated
// after the last child insertion
clone.transform.SetSiblingIndex(selectedTransform.GetSiblingIndex() + 1);
// Rename clone with Numbering Scheme
clone.name = newGameObjectName;
Undo.RegisterCreatedObjectUndo(clone, "Duplicate below");
clones.Add(clone);
}
// Select new objects, if any
if (clones.Count > 0)
{
Selection.objects = clones.Cast<Object>().ToArray();
}
}
}
Thank you both of you
