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Question by PauloPatez · Sep 23, 2011 at 03:35 PM · collisionobjectoncollisionenterdetect

Detect collision with specified object

I was trying to use OnCollisionEnter, I know it detect collision on every object with collider, I want to specify which object it will detect collision with. How I do it in java script?

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Answer by RoughDesign · Sep 23, 2011 at 05:26 PM

You can use something like

function OnCollisionEnter(Bam : Collision)
    {
    if(Bam.collider.gameObject.name == "whatIWannaHit")
        {
        //What you wanna do on collision with GameObject "whatIWannaHit"
        }
    }

However, if you want achieve something like 'only hits enemies', it might be more convenient to use tags. You can for example create a tag named "enemy" and tag all enemy GameObjects with that. Then you can check for the tag like that:

function OnCollisionEnter(Bam : Collision)
    {
    if(Bam.tag == "enemy")
        {
        //What you wanna do on collision with GameObject tagged "enemy"
        }
    }

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avatar image Piflik · Sep 23, 2011 at 06:11 PM 0
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You don't need the 'collider.gameObject' in your if statement.

 if(Bam.tag == "enemy")

is enough.

avatar image PauloPatez · Sep 23, 2011 at 07:37 PM 0
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That's exactly what I was looking for. Thanks.

avatar image RoughDesign · Sep 23, 2011 at 09:04 PM 0
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I took some of my time and provided a working solution here.
I didn't know the collision is also tagged the same as the GameObject that collides. Yeah, I'm still learning.
Then you provided a way to use less resources, which is nice of you.
But is that a reason to vote me down like a spammer?
Not that I'm hunting for karma or something, that just seems rude.

avatar image PauloPatez · Sep 24, 2011 at 01:21 PM 0
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I thank you, but I did not vote you down.

avatar image Piflik · Sep 24, 2011 at 02:04 PM 0
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Neither did I...

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