How to find if a child belongs to a Transform on RayCast Hit [Updated]

Question

Hi,

I have a raycast which is set to trigger when on a certain object. It does this by detecting the transform name.

However I now need to find out if the transform I have detected is a child of a specific parent transform.

[Updated]Is there a way to get the Root Parents Name of the Transform my RayCast Hit?

Here is my code so far:

 if(Physics.Raycast(transform.position, forward, hit, rayCastRange)){
          if(hit.transform.name == "AttackerTowPoint")
     {
         //Find out if hit.transform is a child of a GameObject called "Attacker"
     }
 }

Thanks

Paul

Answer 1

Best Answer

Answer by hvilela · Sep 30, 2012 at 09:21 PM

If you want to know if it's a directly child of "Attacker" you can do like:

 if (hit.transform.parent.gameobject.name == "Attacker"){
     // do whatever you want
 }

If you want to know if it's child of child (or at any deeper level) you can try something like this:

 Transform t = hit.transform;
 
 bool isChildOfAttacker = false;
 while (t.parent != null) {
     t = t.parent;
     if (t.gameobject.name == "Attacker") {
         isChildOfAttacker = true;
         break;
     }
 }

 if (isChildOfAttacker) {
     // do whatever you want
 }

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code-blep · Oct 01, 2012 at 04:45 PM 0

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Perfect! Thanks Henrique!

BOT-Alex · Apr 05, 2020 at 10:32 PM 0

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Thank you for this.

Answer 2

Answer by hvilela · Sep 30, 2012 at 05:20 PM

transform.parent returns the parent of a transform.

transform.parent.gameobject.name return the name.

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code-blep · Sep 30, 2012 at 09:02 PM 0

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Hi hvilela,

Sorry but I have had to re-word the question, as it was worded badly, as a result your answer is not what I am looking for. Thanks for taking the time though.

How to find if a child belongs to a Transform on RayCast Hit [Updated]

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