Lock Transforms in editor script

Unity Engine
1

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

using UnityEngine;

#if (UNITY_EDITOR)
[ExecuteAlways]

public class LockTheThing : MonoBehaviour
{

    public GameObject changeSelectionTo;
    [Space(12)]
    public bool lockScale;
    public Vector3 baseScale = Vector3.one;
    public bool lockRotation;
    public Vector3 baseRot;
    public bool lockTranslation;
    public Vector3 basePos;

    [Space(12)]
    public bool lockNonUniformScale;

    void OnGUI()
    {
        if (Application.isPlaying) return;

        if (lockNonUniformScale && this.transform.localScale.x != this.transform.localScale.y)
        {
            this.transform.localScale = new Vector3(this.transform.localScale.x, this.transform.localScale.x, this.transform.localScale.x);
            SelectOtherGameObject();
        }

        if (lockScale && this.transform.localScale != baseScale)
        {
            this.transform.localScale = baseScale;
            SelectOtherGameObject();
        }

        if (lockRotation && this.transform.localEulerAngles != baseRot)
        {
            this.transform.localEulerAngles = baseRot;
            SelectOtherGameObject();
        }

        if (lockTranslation && this.transform.localPosition != basePos)
        {
            this.transform.localPosition = basePos;
            SelectOtherGameObject();
        }
    }

    void SelectOtherGameObject()
    {
        //Select the object you should be transforming
        if (changeSelectionTo != null)
        {
            UnityEditor.Selection.activeTransform = changeSelectionTo.transform;
        }
    }
}

#endif
2

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.

3

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