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Can't figure out what I'm doing wrong here but it keeps coming up with a NullReferenceException error on the CompareTag line. Maybe I'm using it incorrectly? Have tried everything.

function OnTriggerStay(other : Collider) {
    if (!other.transform.parent.CompareTag("Player")) {
       Debug.Log("something other than player");
    }
}

Answer 1

0

You're trying to access the parent of a GameObject which does not have a parent. Check if it has a parent and then compare the tag. Try this:

function OnTriggerStay(other : Collider) 
{
    if (other.transform.parent && !other.transform.parent.CompareTag("Player")) {
       Debug.Log("something other than player");
    }
}

answered Mar 27 '12 at 10:26 AM

farooqaaa
416 ● 2 ● 5 ● 8

Solves the error. Though now doesn't work as intended (needs to trigger for everything, not just objects with parents) — will have to investigate another method. Thanks.

Mar 27 '12 at 10:25 PM Essential

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Answer 2

0

Does your GameObject with collider, got a parent with tag player? maybe try to put to your object the tag Player not at your parent, and then, if (!other.CompareTag ("Player")) { Debug.Log("something other than player"); }

in your exemple, if an object, without parent stay in your trigger, it will cast an NullReferenceException. I think

answered Mar 27 '12 at 11:25 AM

Viluredfish
65 ● 1 ● 1 ● 4

(comments are locked)

Answer 3

0

I think that should be

if (other.transform.parent.CompareTag!=("Player")) {

answered Mar 27 '12 at 10:21 AM

AtomicHippo
51

Apologies for this answer, I somehow managed to overlook the parent reference in your code:(

Mar 27 '12 at 10:51 AM AtomicHippo

That's okay, thanks for trying. :)

Mar 27 '12 at 11:07 AM Essential

Took back my downvote. Please check your code before posting an answer.

Mar 27 '12 at 12:03 PM farooqaaa

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NullReferenceException using CompareTag

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