if a MonoBehaviour is destoryed, is there a way to find which 'man' destory it?

Unity Engine
1

if a MonoBehaviour is destoryed, is there a way to find which ‘man’ destory it in the onDestroy Method?

2

No, I don’t think there is, not without pretty ‘ugly’ workarounds anyway.

Why do you need to know? Perhaps there is another way around it.

3

You can try using the System.Diagnostics.StackTrace class. For example, in C#:

private void OnDestroy()
{
    var st = new System.Diagnostics.StackTrace(true);
    var sfs = st.GetFrames();
    foreach (var sf in sfs)
    {
        Debug.Log(sf.GetFileName() + ", " + sf.GetFileLineNumber());
    }
}

It should work for cases when an object is destroyed explicitly through Destroy or DestroryImmediate. I know that it works for DestroyImmediate, but you’ll have to test it for plain Destory.

HTH

1 Like
4

wow, thanks, I will test it

5

I got a question, I have created a lot of rigidbody, and then some of them disappear when their velocity approach to zero, I have no idea, just added a OnDestory to that one of MonoBehaviour belong to that gameObject, I found that OnDestory is called, but I do not know why it happens…

6

yeah, I failed, the System.Diagnostics.StackTrace get a onDestory at his top, nothing more…