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Question by Eoku_ · Oct 26, 2017 at 10:39 PM · c#collisiontagsdebug.logoncollisionstay

OnCollisionStay is doing nothing.

I am trying to detect whether my player object is colliding with something that would hurt it using a tag to denote whether the object is "Dangerous" or not. My code looks like this:

 private bool touchingDanger = false;
 
     void OnCollisionStay (Collision col) {
 
         if (col.gameObject.tag == "Dangerous") {
             touchingDanger = true;
         } else {
             touchingDanger = false;
         }
         Debug.Log (touchingDanger);
     }
 

And it does absolutely nothing. I have followed the Scripting API to a tee and I have restarted Unity multiple times to absolutely no avail.

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Answer by tormentoarmagedoom · Oct 27, 2017 at 08:45 AM

Good day @Eoku_ !!

1- ( I only a suggestion) Replace at

  void OnCollisionStay (Collision col)

for

  void OnTriggerStay (Collider col)

2-

Check that at least one of the objects in every collision have a rigidbody component

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avatar image Bunny83 · Oct 27, 2017 at 11:32 AM 0
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Your first point is wrong. All OnCollision callbacks have a Collision parameter. All OnTrigger callbacks just have a Collider parameter.

avatar image tormentoarmagedoom Bunny83 · Oct 27, 2017 at 11:34 AM 0
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omg! very true! i think it was a ontrigger XD, then maybe he needs to do a "OnTriggerStay"

avatar image Eoku_ · Oct 29, 2017 at 09:57 PM 0
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The first one worked! Although the setup is not totally ideal for my game ( I want things like enemies and rigidbodies to be able to touch things marked as dangerous without falling straight through them ). I also expiramented a bit by replacing col.gameObject.tag with col.collider.gameObject.tag and col.collider.tag, but neither worked.

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