PawnSensingComponent - Hearing no longer works in 4.5

Development Programming & Scripting
1

Hi,

simple setup with Player (with assigned NoiseEmitterComponent) doing “PawnMakeNoise” (or MakeNoise, both dont work), and an AI with a PawnSensingComponent. I can see in debugging that MakeNoise is triggered, but HearNoise is never triggered.

Same setup worked in 4.4, since i converted the project in 4.5 it no longer works.

Update: Just tried quickly with a whole new project in 4.5, it doesnt work here too, so no issue in converting the project.

Update2: When calling MakeNoise directly on the PawnSensingComponent, it works. When calling MakeNoise from the Actor class, it doesnt work.

Cheers,

2

Hey there, you should post this one to bug reports as well.

3

I second that. I’m having the same problem using 4.5. It works as expected in 4.4. PawnSensing OnSeePawn works but OnHearNoise doesn’t. Bummer…

4

Hi indygoof,

Thank you for your report. This is a known issue and is currently being assessed by the development staff.

5

Hello,

Have you fixed that issue in 4.6? I’m facing the same problem in 4.5.1…

6

Hi swantiez,

This is still being assessed by the development staff. Unfortunately I do not have a timeframe of when this fix will be incorporated into the editor.

7

Sorry everybody!

It turns out I’ve broken it months ago while moving new Perception System from Fortnite codebase to AIModule. For those working with AI code the fix is simple: just comment out the internals of UAIPerceptionSystem's constructor.

For non-C++ users, I’ll apply a fix now and it should be available in 4.6.1.

Cheers,

–mieszko

8

Thanks again. I applied portion of your fix to 4.5.1 and it appears to resolve the issue.

https://answers.unrealengine.com/questions/124234/on-hear-noise-event-not-working-in-45.html#answer-140851