How to make interesting Enemy AI for your Indie Game ( UE4 )

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Outro Music by: Gabe Miller
_ Chapters
0:00 - Intro
0:59 - Revamped Boar ?
1:40 - What I've Learned
3:07 - How Behavior Trees Work
5:28 - Why use Blackboards ?
6:36 - Enemy AI Component
7:48 - Going over the Boar's Full Behavior Tree
11:30 - Better Spline Movement
12:42 - Polishing Aspects
13:40 - Navigation issue
14:50 - Conclusion

[@diegoaladdin86]

Bro so much improvement in the boars, honestly comparing it to when i tried out the game in the second devlog when they were added and wow this feels much smoother already!

[@And_l_Wonder]

These devlogs just brighten up my day!

[@LogicLeoyt]

Glad to hear that , thanks 😄

[@ad0itachi]

This is the most detailed explanation I have seen, Great video! I've been working with AI in behavior trees for some time and the points you mention are always the more struggling. Is a great starting point to sketch and master the logic using those basic nodes before adding services, simple parallels or perception. The AI component is something I have to try.

[@fatfingersman]

Nice channel bro, got recommeded for me only now

[@luaragetineli7949]

looking forward to playing

[@joaobatistadesenaneto5335]

Amazing my friend, keep going on!

[@LogicLeoyt]

Thank you! Cheers!

[@Ready_Fire_Aim]

i think there is a new option to "fill under for nav mesh" in details panel now (for almost everything)

[@Mrbrum011]

Amazing content!! But I would like to know, what plugin do you use to organize your nodes? I need those angles

[@NorwinLabs]

Electronic Nodes

[@olololololishe]

Cool video, got here from recomendation and didn't regret a bit ! Tho it's kinda late but I have a question: I see you set your AI movement speed with task at start of the behaviour branch, and I've seen this methond in bunch other videos with, let's say, advanced AI scripting. Why don't just change mov.speed with sevice which will hang on respetive composite bode ? To me it kinda frees BT from having visual noise with such trivial set-up tasks. Am I missing something here ?

[@diegoaladdin86]

BRO THE BOAR KICK IS GOLDEN!!!

[@Restart-Gaming]

Will there be or this there a video on how you set this up ? Looks GREAT

[@ShalowRecord]

would be cool to get a tutorial on that spline system you have. How would you send that new spline location back to BT?

[@LogicLeoyt]

Yo. With the task on the behavior tree I use a timeline and then do a “get location along spline “ to move the AI along the given location

[@cosmotect]

We now have state trees in unreal, should I use those for AI? Or are BT's still superior?

[@Aliasah]

What is your plugin for the stylised link ?

[@vitaliipylypenchuk]

how did you make your BT wiring look this way?

[@sc2sc286]

6:54 can't you do this with an AIController class?

[@josharnold4203]

Do behavior trees wait for a task to call "Finish executing" before moving onto the next task to the right in a sequence? Thanks!

[@LogicLeoyt]

Yes , tasks can be latent so you can do pretty much anything and it will wait

[@danielgrabarczyk4]

Try this solution to nav mesh problem. Change nav mesh to dynamic on AI. Use sphere(on player) to detect instance foilage actor with tag (example: Tree,Rock. You have to add this tags to foilage actors). On collsion i collect static mesh and transform info. Delete instance foilage actor and spawn mesh acording to info collected. Nav mesh works with this method for me. Reverse process when move away from area to save performance.

[@kingdemolition6681]

Another banger!

[@LogicLeoyt]

thanks :D

[@El_Bellota]

Riot taking notes right now.

[@LogicLeoyt]

lmao

[@jasonruff1270]

what's your opinion on machine learning AI for something like this?

[@Stridenx]

What logic do you keep in your AI controller and how do you use it differently than your AI Component?

[@lorenzogarbin8990]

You made me feel so stupid..this is what I was looking for... Thanks for sharing knowledge. ❤❤❤❤

[@mgames7856]

also how can i help make your game ?

[@SimonSlav-GameMakingJourney]

Have you ever tried the Logic driver state machine for unreal? Nice vids btw keep going :)

[@LogicLeoyt]

Its a plugin, right? I was really interested in it but it seems a bit pricy.

[@SimonSlav-GameMakingJourney]

​@@LogicLeoyt Yes, it's a state machine so enemies, player states like combos, etc. (there's a free version too, that's why I'm curiouse) It came to my mind when I saw alerted hog :D. Btw the spline movement is genius small things like that make all the difference I think, it's like squash and stretch of AI 😄

[@DailyPaily]

Interesting.

[@mgames7856]

end also i have an idea for a misions end bosses that i think would be good end interesing

[@joaolucassantosviegas3334]

Cara, se tu traduzisse esse video e postasse seria de muita ajuda pra glr. (Em geral nao tem tanto conteudo bom em br e se tivesse teu video la sobre BT iria ser daora; Nem que duble em cima desse video ja seria uma ajuda pra glr)

[@yash-bb9lh]

isnt the enemy ai component basically the stuff that needs to be in an enemy ai controller?

[@Luca-yq5ux]

Ai perception gets added to the ai Controller - aicontroller runs bt

[@joedabruh2406]

Yo. I have never watched you before and I probably still won’t unless you make something really interesting, but I wanted to let you know that I found this channel from your Reddit account, which is pretty funny if you think about it.

[@LogicLeoyt]

thanks for letting me know. I hope I make something interesting someday, but I'll keep trying

[@jenpaulinesanpedro]

How's it going?

[@wellingtoncarneiro-ht4nd]

👍😲👍😲👍😲👍😲👍

[@StarryNap]

Digga was?. this feels like a speedrun lmao. But nice voice

[@megalordgamer1974]

Like your game can you please make game for mobile

[@trimtab9675]

5th comment