OnTriggerEnter not firing

[dharry]

I am building an RTS game and have the Dialog Actor component on my main Game Manager GO set as Player. I have a box collider, dialogue system trigger, rigidbody and dialogue actor set on another GO set as NPC.

I have the Dialogue System Trigger set to On Trigger Enter with an Accepted Tag as Player.

My problem is that trigger never gets triggered and the Required Conditions always states Last Check: Failed

What have I missed to get this working?

[Tony Li]

Hi,

Since you see "Last Check:", this means something is entering the trigger collider. So that's good.

I assume the box collider on the NPC is a trigger collider?

What GameObject has entered the trigger collider so that it shows "Last Check: False"? Is it the Game Manager GO? If not, then is the tag of the GameObject that entered the trigger collider set to Player?

Are there any errors or warnings in the Console window?

[dharry]

Hi Tony,

Yes, trigger collider on the NPC. I have just changed things a little to put the Dialogue Actor component one of the player characters and ensured it's tag is set as Player.

Still got the same result though, Last Check: False - it did go from None to False when the character entered the collider.

My preference is to have the Actor as the Game Manager and check the tag on players characters but i'm happy to go either way as long as it works

[dharry]

Ok, I tracked it down to this:

private bool IsAcceptedTag(Transform interactor)
{
if ((interactor == null) || (acceptedTags == null) || (acceptedTags.Length <= 0)) return true;
return acceptedTags.Contains(interactor.tag);
}

The acceptedTags is a list which contains "Player" however the interactor.tag is returning as "Untagged", even though my character does have the tag Player on it...

[dharry]

Ok, I got it - all the child GO's of the character had to be tagged as Player, not just the root of the character.

In my case, I also had a collider on a child component which was tagged as Untagged. Once I set that to player the trigger worked fine.

Thanks Tony, hope this helps someone else

[Tony Li]

Hi,

Thanks for posting your solution. This also frequently happens when using Opsive controllers, which keep their colliders on child GameObjects that have the tag Untagged while the main player GameObject is tagged Player but without a collider.