Custom Editor to show child component on parent?

Question

This might be a weird question, so let me explain.

Let's say you have a GameObject (the Parent), which has a child with a BoxCollider set as a trigger. The child has a script attached to it which detects OnTriggerEnter() events, and which has a few public fields that show up in the inspector.

A better place for this script would be on the parent itself, so it's easier to find at first glance, but the parent doesn't have a BoxCollider, and never will. So the script HAS to be on the child.

I'd love to be able to display that script's public fields on the Parent itself, while keeping the script on the child. Is this possible with a custom inspector class? Is it it much simpler then I think it is?

Thanks for your time guys! Stephane

Answer 1

Best Answer

Answer by delstrega · Jun 24, 2012 at 10:30 AM

There you go:

 using UnityEngine;
 using UnityEditor;
 using System.Collections;
     
       
 [CustomEditor(typeof(TestClass))]
 public class TestClassEditor: Editor {
     
 private TestClass myTestClassInstance;
         
 void OnEnable(){
     myTestClassInstance = (TestClass) target;
 }
     
 public override void OnInspectorGUI () {
         DrawDefaultInspector();
             
     BoxCollider myBoxCol = myTestClassInstance.GetComponentInChildren<BoxCollider>();
         
     if(myBoxCol != null){
         SerializedObject boxSO = new SerializedObject(myBoxCol);
         if(boxSO != null){
         SerializedProperty prop = boxSO.GetIterator();
         while (prop.NextVisible(true)) {
               if(prop.name != "m_Script" && prop.name.StartsWith("m_")){
                          EditorGUILayout.PropertyField(prop);
                }
             }
             prop.Reset();
         }
         boxSO.ApplyModifiedProperties();
     }
     }
 }

Just replace "TestClass" with the name of your parent object's class.

Hope that helps :)

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ronronmx · Jun 24, 2012 at 06:38 PM 0

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Thanks for the example DelStrega, very helpful and informative :)

delstrega · Jun 24, 2012 at 07:25 PM 0

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Glad I could help :)

Awix97 · Mar 09, 2020 at 01:20 PM 0

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Hey, is there a way to edit fields in many objects at once? I use [CanEdit$$anonymous$$ultipleObjects] but changes are saved on only one object.

Bunny83 Awix97 · Mar 09, 2020 at 02:30 PM 0

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I don't quite understand your question. This whole approach is already dangerous since it's hard to tell for a user where the properties he's editing actually belongs to. Why don't you just select all your child objects you want to edit? That way you're editing all at once and you can actually control which you want to edit and which not without any kind of editor scripting.

This code uses "GetComponentInChildren" which will get the first component on the first selected object. So this approach is extremely misleading for a user. If you read the OPs question he has a very specific setup and only has one script on a certain child object which he wanted to display on the parent. The custom editor also specifically breaks multi editing since that wouldn't work that way.

If you have further questions, please ask a seperate question. This question is 8 years old and already answered. If you ask a seperate question be sure to include more details about your case.

Custom Editor to show child component on parent?

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