Unreal Engine 5 Tutorial - AI Part 5: Hearing Perception

[@draicor]

There is a small bug, if the player jumps and the AI hears it, it will run towards the sound, but while it reaches the sound location and waits the 3 seconds, if you jump again during the wait time, it will ignore the sound, as it never happened, even after he exits the wait node, it won't investigate the new location of the sound, even if its just behind him lol. I fixed it by going into the Investigate Sequence and changing the blackboard decorator observer value from on result change to on value change, that way, the AI will investigate the most recent sound the player makes, if he was already investigating a sound.

[@Baleur]

Great catch!

[@andrakesh]

hi, i tried to doing this ai,but i'm playing with the first player character,and i have the string landed displayed,but once i'm equipped with the riffle it stop working,what could i do ??

[@trayvonray9614]

@@andrakesh I just started this and I see no one got back with you. I am also doing a first person project. I just did the same exact thing (copy and pasting) but this time using the rifle landed animation. Works like a charm. So now with or without a gun the AI will go to the location they heard the sound.

[@andrakesh]

@@trayvonray9614 it's cool, what i've did is just changing animation, it wasn't easy to find, cause i searched all animations trying to understand how it works, Thanks sometimes is not clear to understand how UE5 works

[@trayvonray9614]

@@andrakesh yeah I get that fasho bro

[@Skittlez]

These are some of the best AI tutorials i have ever found. Everything is very clear, well coded and efficient. Keep them coming i am loving them!

[@GermanCarguy]

You know how you can sometimes not find a single video on a topic because there is already that ONE definitive guide that you just haven't found yet? Yeah... This is the guide. Haven't worked with UE AI yet, just getting in to it but so far this series is fantastic! Great work.

[@AdityaKhonde-l9w]

Could you please tell us more about the AI debugging shortcuts

[@Baleur]

This is brilliant my dude.

[@fuzzyhenry2048]

I have no problem with sight stimulus but the hearing stimulus just doesn't work. The "On Target Perception Updated" won't be triggered by any noise event. Edit: I fixed it. The only mistake I made is I didn't check "Detect Friendlies". And that's kinda ridiculous. Because I don't need to check it in Sight config.

[@justadictatorridingonanuke3714]

I made the exact same mistake and only found it because of your comment. Thank you

[@rubenhovhannisyan317]

you saved me quite some time, thanks

[@pj2169]

Thank you brother

[@SamuTheFrog]

Just sayin bro, he literally pointed that out in episode 2 or 3 of the series.

[@johndoe35717]

when i jump it doesnt call the event in abp manny

[@paulvancaemerbeke]

Thank you for this video !!!

[@ShadowAimai]

If for some reason the AI doesn't seem to be hearing, remove the senses and put them back in.

[@vakonitas]

Bonus: check first if you turned on all Dection by Affiliation boxes under Hearing Sense (Detect Enemies, Detect Neutrals and Detect Friendlies)

[@rubenhovhannisyan317]

@@vakonitas thanks

[@Vibezooba]

Great video I have a bug that he doesnt follow me anymore how can I fix it I mean like he is seeing me but stops in his place thanks!

[@imjusttellingstories1688]

Hello, I really like your guides, they are accessible and understandable even for beginners. I would like to make a game using the ActionRPGStarterSystem that I have from epic, but I can't change my character (metahuman) into a dummy. Can you make a tutorial on how to get it? I would be very grateful

[@LazyHead]

Hello Guys, I am making a project for my college where I am using the firstperson blueprint as my character and when I did all the steps for some reason the hearing is not working it is showing the yellow sphere when landing but the ai doesn't come towards the location and also I do not see the print string of the animnotif. I have double checked everything does anyone has any idea how can I fix it.

[@UltraCole]

i dont have event receive execute ai 8:05

[@TheSearunner]

I cannot get this to work. I follow the steps exactly debug shows the sound happening but the AI will not investigate. Visual works, random works, the sound is registering but they will not investigate. All the fixes listed in the comments have been applied and not worked. Driving me nuts!

[@ElTitoVR]

Can you fixed?

[@hype._.]

I can see the green sphere representing Sight Perception, but can't see the yellow sphere representing Hearing Perception. String 'Landed' is seen at the appropriate time. What's the problem..

[@GVMuk]

is the code placed into your characters ABP not the AI's ABP?

[@AlscarB]

@@GVMuk I have the same issue, all the code is in the right place

[@johndoe35717]

its weird i cant even get a print string on screen if i put right mouse button in my player connected to a print string

[@nikpearsall1769]

Same issue here. Works in StandAlone Game though....instead of Viewport

[@alexladoni-w7w]

@@nikpearsall1769 The AI debugger actually completely disables anything printed to the viewport. It's so dumb, EnableAllMessages fixes it but the second you compile anything it stops working

[@aikidoca]

hey man since we are here on ai any chances to get a little more "advanced tutorial about it? like showing how to make a ai AI choosing what to do based on "status" like a hungry npc would go to a place to grab something to eat or when attacked it can "choose between fight back or run based on choices, because so far is something i really missing in ais tutorials how to make a ai make choices based on some game variables, like time, being attacked, hunger, thirst if damaged attacked scared , how to create a ai which would behavious in different ways based on what is happening around it like in many games. also any chances to add some of the new features from the 5.1 like the mass ai or the smart object and others stuffs.

[@nassergreatdeveloper3745]

I think it is more complicated nodes and behavior tree

[@MatthewGarcés-x8h]

I recommend you to visit Ali Elzoheiry's channel. His AI playlist seem to go in to greater detail in AI in general, while Ryan laley does a bit of everything

[@naytbreeze]

How would you set the ai to perform an animation when they hear the sound for example?

[@nikpearsall1769]

Hmmm, my AI isnt investigating the sound. I get the Yellow Spehere in debug. I can chase him around jumping around right behind him, but he wont investigate the sound?>

[@nikpearsall1769]

Ok...after lots of playing around. If i set the Blackboardbased Condition to "Aborts Both" its works. "Self" doesnt work and the AI does not recognise the noise.

[@ragnorucca6637]

@@nikpearsall1769 nice one mate. Worked for me, did you use a separate model/mesh for your AI than the unreal engine mannequinn? i used 2 different models and i guess aborting self works if both models are the same for player and AI maybe?

[@Tarrum]

@@nikpearsall1769 Thanks, worked for me as well!

[@Haminacam9271]

had an issue with the ai not being able to move to the patrol point when it was on it. I found that if i set collision to pawn in the object it fixed it. If anyone has a better solution tho lemme know

[@PomboKad]

Very good tutorial, thank you!

[@vizorsnix]

thank you!

[@kamitekeiichi2376]

i think my code is working but cant really verify the way it is showing on your screen. can you please tell me which key you used?

[@MaskInc-zh8wy]

I have followed the exact same steps but it still doesn't work for me. And for some reason my debugging for perception doesn't work when I press 4.

[@GVMuk]

make sure the code for the Animation BP is in your Player characters BP not the AI's ABP

[@ry6554]

You have to press 4 on the keypad on the left of the keyboard instead of the main line of numbers on the top of the keyboard. Make sure "num lk" (number lock) is on.

[@jasongutierrez9882]

@@GVMuk Thank you! I chased my tail, followed the video a few times...then duh.

[@trayvonray9614]

you are amazing

[@MGamingStudios]

Are you still doing the JRPG series??

[@nassergreatdeveloper3745]

Thank you Rayan, I have problem, in the part 3 AI sight and chase work fine but once I add hearing system. AI will just go to Sound and he will not follow or chase the player. Any idea ?

[@ЭдильНасибуллин-ф3ч]

Hey! I've found the problem. Get rid of the decorator from the last lesson)

[@nassergreatdeveloper3745]

@@ЭдильНасибуллин-ф3ч which version of unreal engine 5 do you use ?

[@ElTitoVR]

@@ЭдильНасибуллин-ф3ч what decorator?

[@prakulsingla1363]

I cannot see any spheres when i press the ' key

[@UnrealByYourself]

You press the key and after, use the number pad 0-4 to select the mod.

[@prakulsingla1363]

@@UnrealByYourself thanks

[@Lier90]

@@UnrealByYourself For me, I still can't see anything. Any idea what it could be? I press the ' key, then 0-4 on my numpad but literally nothing happens. Kinda frustrating

[@UnrealByYourself]

@@Lier90 Yeah, sometime I have the same problem. I found out that I use English Canada Multilanguage Keyboard and I have to change it to English Canada or vis versa.

[@blackdevilcreations]

@@Lier90 ...My German layout Keyboard had flaws with that, too. Go into your project Settings, under Gameplay Debugger. here you can set new Key bindings to toggle the Debugging and the different Tabs of it. I made myself a small UI for that, calling ExecuteConsoleCOmmand and used the Commands: gdt.Toggle - To toggle the Debugger on/off gdt.ToggleCategory N - to Toggle the Category with Index "N"

[@epsiloncore9772]

why does plugging in 0 in Max Range drastically increase the Range it can hear you?

[@justhere4theoldskool]

Makes the range infinite.

[@god_ozai828]

If you're dumb like me and end up in a loop where the ai will go towards the last known location and then get stuck in a wait loop, check you set the clear blackboard key to target location... I spent 10 minutes wondering what was wrong