Lock Transforms in editor script

Hi all!

I keep running into this issue where I accidentally transform the wrong object in a hierarchy, so I hacked together this little script that looks for any transforms I'm doing that I shouldn't be and redirects the selection back to the object that I should be transforming as well as reseting the transform I had wrongly adjusted.

Now this is a terrible hacky script, but it's saving me all the time at the moment so I'm using it. Just wondering if anyone has any suggestions to make it a bit nicer though.

Thanks,
Pete

Code (CSharp):

1. using UnityEngine;
2.  
3. #if (UNITY_EDITOR)
4. [ExecuteAlways]
5.  
6. public class LockTheThing : MonoBehaviour
7. {
8.  
9.     public GameObject changeSelectionTo;
10.     [Space(12)]
11.     public bool lockScale;
12.     public Vector3 baseScale = Vector3.one;
13.     public bool lockRotation;
14.     public Vector3 baseRot;
15.     public bool lockTranslation;
16.     public Vector3 basePos;
17.  
18.     [Space(12)]
19.     public bool lockNonUniformScale;
20.  
21.     void OnGUI()
22.     {
23.         if (Application.isPlaying) return;
24.  
25.         if (lockNonUniformScale && this.transform.localScale.x != this.transform.localScale.y)
26.         {
27.             this.transform.localScale = new Vector3(this.transform.localScale.x, this.transform.localScale.x, this.transform.localScale.x);
28.             SelectOtherGameObject();
29.         }
30.  
31.         if (lockScale && this.transform.localScale != baseScale)
32.         {
33.             this.transform.localScale = baseScale;
34.             SelectOtherGameObject();
35.         }
36.  
37.         if (lockRotation && this.transform.localEulerAngles != baseRot)
38.         {
39.             this.transform.localEulerAngles = baseRot;
40.             SelectOtherGameObject();
41.         }
42.  
43.         if (lockTranslation && this.transform.localPosition != basePos)
44.         {
45.             this.transform.localPosition = basePos;
46.             SelectOtherGameObject();
47.         }
48.     }
49.  
50.     void SelectOtherGameObject()
51.     {
52.         //Select the object you should be transforming
53.         if (changeSelectionTo != null)
54.         {
55.             UnityEditor.Selection.activeTransform = changeSelectionTo.transform;
56.         }
57.     }
58. }
59.  
60. #endif

 

I also find myself in this position frequently. I want the ability in the editor to lock a transform that is not intended to be changed, so that no bugs are accidentally introduced.

 

https://docs.unity3d.com/2021.1/Documentation/Manual/ScenePicking.html
on Toggling pickability section