🤖┃ai-navigation

[leaden sable]

Oh, I'd never heard of this paradox. Can it happen in AI? I would imagine it would just pick the first one if there are two equally likely options.

[real sonnet]

yes but the "distance to cover" is dynamic

like your "Reloading?" node in your graph. I assume it's a boolean ? I would rather go for the inverse of the ammo count. Otherwise it's just an if statement. That's the beauty of Utility AI, you get nice transition in utility

[leaden sable]

Ahh so they could be more likely to run for cover the lower the ammo gets as opposed to right when they begin reloading

Makes sense

[real sonnet]

also depending on how bullet-spongy or not your enemies are, by the time their find themselves out in the open and with an empty ammo magazine, they might not even have time to reach cover and behing defenceless all that time.

[leaden sable]

In the context of this game, everything is dynamic. So the players could be super quick to kill, or super bullet spongey. I have to plan for the general case

[real sonnet]

Actually I would even rather have some "threat level" consideration instead of ammo in my gun. My agent would probably need to protect himself no matter he can retaliate or not.

But again that's my opinion and depends a lot of your game. Maybe you do want them to be easy targets ^^ I'm thinking too far here

[leaden sable]

Is there a benefit to having this threat level metric over a bunch of smaller considerations like ammo, hp, "bravery", etc?

The game itself is AI vs AI. They just need to convincingly fight each other lol

[real sonnet]

yes it can happen like when you describe 2 actions score the same amount. In this case depending on how you sort them you could ping-pong between those 2 actions. Usually uyou would have some kind of "commitment" consideration, where you add a bonus to the selected actions if it's already the current one.

[leaden sable]

Ohh I see what you're saying. Wow I hadn't considered that, but the bonus thing is a good idea

Thanks for the help with this AI stuff 😄

[real sonnet]

Not especially one instead of the other. You could have a smaller "brain" that computes the threat level separately. Then you use that threat level as a scorer 🙂

can help simplify the abstraction, thus the reading, of your AI

of your graph

[real sonnet]

yeah that's a nice guideline to keep in mind. Obviously all this complex stuff is useless if you AI lifetime never exceed a few seconds on screen 😄 so again, depends on the game

I bet call of duty AI is very dumb

[leaden sable]

It's complicated but essentially the player is designing a FPS game which AIs play. Since the AI health, weapon damage, etc is up to the player, the fights could either look like quick cod gunfights or epic boss battles with spongy enemies.

[real sonnet]

oh I see. something like totally accurate battle simulator then ?

[leaden sable]

Yeah kind of, but with more management aspects

These AI will have a skill level that gets better as they play, so if two unskilled players get into a battle, it might last longer as they miss more often

[real sonnet]

yeah you will need even more balancing work than UAI itself already requires in the first place.

Or you can totally embrace the sandbox aspect of it and laugh when players end up with weird behaviour

That can be the formula of fun of your game, can totally work out pretty well

[leaden sable]

Haha I expect there will be some weird behavior for sure, but I do want these AIs to act like players and so far utility AI seems like the best way to get that outside of a crazy machine learning solution

[real sonnet]

In this case I would focus on the extremes, the minimum and maximum values, but yeah, lot of play test to come.

and probably involve the community in early access so you'll get mass beta-test

[leaden sable]

yeppp, just gotta get through this complicated stuff. It seems like 95% of AI work is conceptualizing it

I've spent way more time in Lucidchart than visual studio lately lol

[real sonnet]

I think I get what you're after, I love close to realistic simulations too

🙂

[real sonnet]

looks good to me, on the right track buddy 👍

[leaden sable]

Thanks! You've given me a lot to consider.

[real sonnet]

but don't forget to test often ^^ so you don't get too far before realizing you're going to far ^^ anyway i'm typing too much

2 last advice

1. did you study the work of Dave Mark (and other colleagues) ? Pretty good stuff for UAI
2. have fun (not an advice I know :P)

[leaden sable]

I've been watching a tutorial for Utility AI which has explained most of the concepts but I have not heard of Dave Mark. I'll look him up! And definitely good on #2. Seeing the little Ais come to life is always fun!

[real sonnet]

Definitely 🙂 good luck mate !

[leaden sable]

Here's one of the current dumb ones lol

They only walk in a straight line and use a FSM to decide when to attack other ones. Definitely due for an upgrade!

And thanks for all the advice 😄

[queen needle]

No
In a new project this error not happen

[queen needle]

How can I solve this error?
I'm trying to install NavMesh, but this error appear

[small trench]

Anyone used the Unity Ai game tester yet?

[alpine glacier]

okay i import it and no error happend

I dont know why calculate Path is true, it must be false or understand i something wrong

Ship stops but Calculate Path says its valid -.-

[stone owl]

are you debugging the path itself? CalulatePath may have just calculated to the nearest point..

so it would be valid in that case, yes?

at least from this code, what you're calculating and what your agent is using as a path are different.

eg where in the world is pos , lots of questions.

[alpine glacier]

I generate a Point then i will check is the point in the red zone. if the point is in the red zone i will create a new point. the red zone is in a terrain. I will check is the point a inside this area and can the navmesh move from a to b. i would expect the navmesh to say it is invalid because no progress is possible at point x

[unreal quest]

What did I do wrong?
I have checked navigation statics
I clicked bake
and nothing happens

[unreal quest]

Pleaseeeee

[alpine glacier]

did you have a collider on the object ?

Is this set to walkable ?

[unreal quest]

Yes

Ohhh

I had the radius set to 0.5 in bake tab and 0.2 in NavAgent

[errant sorrel]

What can I do about this navmesh glitch? The AI will use it to "cheat" and walk up the platform from the side in mid-air, without using the stairs.

And I thought there would be jump points all around the platform, maybe the glitch has something to do with that?

[stone owl]

I think what that glitch is basically you need to configure the agent height

with a platform that low, you should not have navmesh generating below it

configure the agent height in the navmesh settings + components

additionally the Step height is probably too high if it's generating up an elevation like that (mid air)

[errant sorrel]

But I am allowed to walk below it, and my character has a Character Controller height of 1.3, and I made sure the agent has this same height. Maybe it's a case of not having platforms at that particular height. I will raise it a bit and see. it should probably match the standard height I chose of 3 for a minimum floor to ceiling height of a building interior. I will try this now.

I did make that platform in early days

[errant sorrel]

Are you referring to the navmesh directly over the stairs? I have no idea what that should look like (this is my first navmesh). But I don't have that "stairs" checkbox enabled, I'm happy for them to slope up the stairs if it helps performance.

[errant sorrel]

Ok adjusting the height worked 🙂 thankyou. And what about the jump points only being placed at the end, like a diving board? Is that also normal? That's OK I guess, just making sure I'm not doing anything wrong.

[stone owl]

No the slope on the stairs is fine. Step height as in how high the navmesh will try generate based on the needs of your agent

[errant sorrel]

Kinda weird that it's allowing jump points off the bottom steps but nowhere else until the end of the platform

[stone owl]

Hmm honestly have not tried jump points at all in my games, but I'm sure that question has been asked maybe poke around on google a bit if you haven't.

[errant sorrel]

I will, I have a much better idea of things already. Thank you.

[stone owl]

it's a big strange yes, maybe it's requiring the jump points to be far from any geometry that could block it's jump (the stairs) which is a bit silly but.. who knows how these things work

[errant sorrel]

Ideally I'll find out eventually as I develop the game, or design around it XD

[stone owl]

then again it looks like you have jump points at the beginning of the first steps.. lol yeah I'm clueless

[errant sorrel]

Being afraid of heights doesn't explain it, since it seems perfectly fine to jump off the end of the "diving board"

[alpine glacier]

Could someone tell me how to make a simple AI that just follows the player and stops when he touches him i used to use movetowards but now that i added random generation i need ai but cant make it work im using A*

or link a video

i cant seem to find any mys elf that work

like brackeys and codemonkey

i could use The navMesh since i just read about it but have no idea how to use it
Note: game is in 2D

[alpine glacier]

yournavmesh.setdestination(player) , then check [collider Collider[] hitColliders1 = Physics.OverlapSphere(transform.position, 0.1F);
foreach (var hitCollider in hitColliders1)
{ if(hitCollider == "yourplayer"){ then set destination at position from your object}}

[alpine glacier]

Some people are saying NavMesh doesnt work for 2D

ill still give it a shot

ah okay you work with 2D, there i dont know how it works.

the check with the collider you can use in 2D but i dont know how pathfinding work in 2D

thanks for at least trying

ill try and figure out A*

[quick birch]

I have an inquery about an ai/physics problem

I have a nav-mesh, i have a-star, but now i need my ai to figure out how to not overshoot the nav-points since im using force applied to a rigid body. I've been trying to brain storm the most efficient approach and wondering if anyone had any tips

[tacit lark]

Hello,
I'm a High School Student and I have experience in Unity & C# & Python & OpenCV and make many games and published them.
I need an project idea for a Contest in field of AI & Computer Vision and this idea should be practical and not repetitive.
If you have an idea, please guide me. 🙏

[real sonnet]

I'm thinking some kind of vehicle blind-spot coverage to help our seniors and tired truck drivers 😛

[leaden cosmos]

I'm trying to make a game with an RL agent that learns during play time

Is that possible with Unity? Or is only inference possible?

(basically I'm asking if online learning is possible)

[leaden cosmos]

I'm being answered in unity talk, so never mind

[alpine glacier]

can anyone just give me an player with guns and with ai on it

[noble fog]

@alpine glacier Don't spam channels with script requests. Next time will be a warning. Make an effort, learn about the subject. It's an involved process.

[hoary linden]

i got a question about navmeshes, does the mesh have to be a cylinder bcs im thinking abt making animal ai's and the cylinder wouldnt work from what im thinking abt

[jaunty raft]

make it a sphere/circle/cylinder with a low height that is the size of the length of your agent(animal), usually a navmesh has no concept of a directional shape used for an agent

[hoary linden]

hmmm ok

[hoary linden]

so im wondering, can i put any type of mesh on a navmesh and just use the actual navmesh to move it? cuz i wanna make a dragon that can put its head underbridges for example

[mortal narwhal]

is anyone here familiar with A* pathfinding? I set up an empty gameobject with the pathfinder script on it and assigned it an obstacle layer mask, but when I hit scan, nothing gets marked as an obstacle

[noble fog]

A* can have different implementations, it's not a singular, unique thing. If you want an out of the box solution for pathfinding use NavMesh, you can find tutorials for it on Unity Learn

[carmine bronze]

hmmm

reckon you need to create a flowchart to design an AI?

[pseudo pawn]

might make figuring out the logic easier

[carmine bronze]

also, to program an AI, we basically mainly just program dem animation states?

i mean, determine what animations to play though, like for NPCs

[cobalt wigeon]

Having some trouble with NavMeshSurface, can't find much information online about my use case. I have a scene that I load additively which contains a NavMeshSurface on it. When it gets loaded a 2nd time I get a warning, Duplicating NavMeshSurface does not duplicate the referenced navmesh data

I'm having trouble figuring out how to duplicate the data properly for the duplicate scene. What's the proper way to re-use NavMeshSurface data?

[cobalt wigeon]

Found out I can do a

NavMeshData duplicateData = Instantiate(navMeshSurface.navMeshData);
navMeshSurface.RemoveData();
navMeshSurface.navMeshData = duplicateData;
navMeshSurface.AddData();

Essentially used instantiate to create a duplicate and remove the original and add the duplicate in it's place.

Not sure if this is a better or worse option compared to re-baking during run time. I assume this is better because it more than likely takes less effort.

[karmic sierra]

Hi everyone, currently I'm interested in NPC/AI behaviour in Unity, usually, I only used a simple event with on trigger enter with collider to address the NPC state and the boolean variable to use them. Lately, I learn to use state machines by writing the script manually in the mono behaviour class and using on trigger enter or timer in it to change the state, but I found it is quite difficult to change to animation same as the previous way. Plus it's difficult to make it modular in case I want to use it again. And my question is what is the best way to make NPC behaviour in game development or in this case with Unity engine
Thanks, everyone

[alpine glacier]

I saw some people using the unity animation controller to make ai, so instead of writing the states in code, you have your animator control the state, and you just give it the parameters, I haven't tried it, but I tried doing other things with unity animator, and it can do things other than animations.

You can also create a node graph, there are tools like "UI builder" in the asset store to help you create it, or you can use unity's default graph view, it's in UnityEditor.Experimental.graphview

There are some tutorials In youtube about it

[karmic sierra]

Thank I would try that one🙏

[karmic sierra]

Sound interesting, I've seen unity tutorial with behaviour tree but it cost money for the package. I just realize that ui builder can be use for something like that. Thanks man

[alpine glacier]

You are welcome

[flat granite]

Hallo, is it possible somehow to let a group of NavAgents ignore another group?

so they don't try to do the avoidance/collision

[white junco]

hello, Im using A* algorithm to implement pathfinding in my 2D top down game, I ran into problem, I cant scale up the grid and I cant view borders. Also, note that Im following brackeys tutorial and using free version of A*.

[alpine glacier]

First, to scale up your grid you have to increase, the width and height, for gizmos, click the grey buttons on the bottom

I will also send you some pics

just wait a bit

[white junco]

ok

[alpine glacier]

this is in the pathfinder component

[white junco]

ok

and, I need to click what?

[alpine glacier]

you can edit width, height, node size and more

the button saying show "thing" in the bottom

and for the size, you can just change the value of the width, height

[white junco]

ok, I clicked all of them

but I cant see the grid..

[alpine glacier]

are you in game window

?

[white junco]

no

[alpine glacier]

make sure to enable gizmos

click the gizmos button on the max right

it will enable gizmos

I meant this one

[white junco]

ok, enabled gizmos

[alpine glacier]

does it show up?

[white junco]

yes, thank you!

[alpine glacier]

welcome

watch some tutorials

https://www.youtube.com/watch?v=jvtFUfJ6CP8

this is a good tutorial to understand basics

[white junco]

yeah, im folowing that

[white junco]

Hey, sorry for ping, but now, at random times it just decides to stop and shows this message...

[alpine glacier]

Haven't seen this error before, make sure you do a scan after setting the Pathfinding grid parameters

[white junco]

yeah, I scanned but it shows this error

[alpine glacier]

I think you need to put your AI characters on the grid for it to work, also, to make sure that there is a walkable area in the grid, make sure there is a blue color, blue means the node is walkable, if no color, than the node isn't walkable, so make sure a blue color showed up after you scanned, if there is none, just tell me.

[white junco]

there is blue, and it is working properly, but at some times it just sends this message, when you try to run from it, and it dosent work anymore..

If you want I can send you private youtube video link in dm

also after it initiates die() it rests and works..

        
player.SetActive(false);
player.transform.position = spawn.transform.position;
addHealth(10);

this is literally die() function, and it initates if healt is <= 0...

[alpine glacier]

why would you deactivate player object, aren't you trying to respawn the player in the spawn?

[alpine glacier]

.

[white junco]

umm, idk why I wrote that there..

fixed it

That dosent solve the issue tho

[white junco]

how do I fix this, as you can see it got stuck and then I noticed my character is far from map (it moved my player to that location when I started game, it wasnt there before) and after I moved player towards map AI started working again...

so, it is my movement script that is making problems

[alpine glacier]

Seems you are moving the character's z axis, while the game is 2D, so z axis is not needed, make sure that the z axis is always 0 when you are making a 2D game, because in most times, it will cause problems

[white junco]

yeah

I used Vector3 instead of Vector2

Thank you for helping me

[alpine glacier]

You are welcome

[round socket]

hey hey is anyone around an expert on GOAP and willing to have a lil chat about it?

[nocturne scarab]

For a game like WorldBox would it be better to use FSM or Behaviour trees for the AI ?

[round socket]

well behaviour trees are more powerful for complex behaviour but also harder to implement. Why not try an fsm first since it's quick to implement and see if it fulfils your needs?

[shell acorn]

hello! I have this issue when using NavMesh where my enemies sometimes, they reach the end of the NavMeshSurface but instead of choosing a new destination inside the surface they keep trying to move to the same side, outside of the surface, making them play the move animation while the stay at the same point at the edge of the surface. Anyone knows how to fix that? I m thinking that i should find a way to detect if the agent is at the edge of the surface and if it is to rotate it and make it choose a new destination inside the surface.

[hollow prism]

how hard is to make an ai that avoids certain areas and shoots at the player at sight ? Its for a top down shooter.

[formal arrow]

hey does anyone have a solution for my nav mesh agent leaving its body? ive been looking for a bit now to no avail, thx and adv

[formal arrow]

ah ive fixed the issue by using agent.nextposition = transform.position

[clever elm]

what exactly do you mean?light blue is walkable ... seems reasonable?

[median torrent]

Is there a way to make my 2D enemies not eventually just occupy the same space when chasing the player?

For reference, this is a 2D top down bullet hell game.

I tried a method that I'll paste in just a second, but it just made them not move at all.

    {
        for(int i = 0; i < enemies.Count; i++)
        {
            if(i == 0)
            {
                continue;
            }

            if(Vector2.Distance(enemies[i].position, enemies[i - 1].position) < 1f)
            {
                Vector3 repelDir = (enemies[i].position - enemies[i - 1].position).normalized;
                transform.Translate(repelDir * repelSpeed * Time.deltaTime);
            }

            Vector3 targetDir = (player.position - transform.position).normalized;
            transform.position += targetDir * moveSpeed * Time.deltaTime;
        }
    }```

[tribal agate]

its kinda weird that you're mixing transform.Translate and transform.position += , but that shouldn't make them not move

though this would make the first enemy not move because of the if(i == 0) continue;. That skips both the repel and the chasing for the first enemy

[blazing mortar]

I wish Behvior Trees were included for free in Unity. This would reduce redundancy for assets & standardize things.
You can't mix & match different AI asset code because they all use different decision making systems
Also, every dev has to reimplement AI decision making systems like FSM or BT separately.
Unreal has tons of assets or templates with good AI included because in Unreal, both Third Person Character Controller & Behavior Trees are included in the Engine for free.

[jaunty raft]

It takes half a day to implement a behavior tree yourself. Also experience teaches that tree-like datastructures are practically impossible to generalize. This is where the unreal tools regularly fail and constitute a barrier much higher than unity‘s absence of the feature with much easier api to implement one yourself.

[alpine glacier]

I need some help calculating the rotation of my AI to activate a turn animation in a blend tree, I need to calculate the left turn to -1f, and the right turn to 1f. is there anyway I could do this?
I already have my animator set up I just need too calculate the rotation to change the float.

[atomic bronze]

So how can i make my navagent back a little when player is close but then go for the attack distance again, it look so mutch cleaner if they can back a little when im to near?*

i can provide code

i cant just minus the navagent.setdestination

so what to do?

can somebody lead me to the right way

[alpine glacier]

There's no right way, haha, there's your way to do it. Believe in your code. I was making some progress with AI by myself with some first try code, and man, it was hilarious how things got wrong sometimes

I migrate the code to Command Pattern with State Machine for the basic commands, Chase, Attack and None for some attacking troops

Them I find myself with some problems with some enemies hight and how big the models were supposed to be, long story short: I've encountered the same problem as u

To handle my, your, our problem I did a real quick math to get the point before the real destination when the agent wanted to move. Something like Vector3 _desiredPos = target.position - (target.position - transform.position).normalized * interactionRange;

That would return to me the point within the interaction range I gave for my troop, just in the range of the target position

Hope this help u :D

[atomic bronze]

Thanks man gonna take a look i know this is hard to fix with navmesh

[crisp sigil]

Haven't worked much with AI so I'm sure this is a simple code that I'm just not wrapping my head around.. I was just trying to modify a simple AI that would attack a player, but I want it to be a friendly AI that attacks anything with the "Enemy" tag.. This "Friendly object" is attached to the player so it just follows along.

[eternal stag]

sounds good

[crisp sigil]

Lol, I'm asking for help.

[eternal stag]

what's the question?

[crisp sigil]

I asked it lol

[eternal stag]

I don't see anyquestion

[crisp sigil]

I was just trying to modify a simple AI that would attack a player, but I want it to be a friendly AI that attacks anything with the "Enemy" tag.. This "Friendly object" is attached to the player so it just follows along.

[eternal stag]

which part is the question?

[crisp sigil]

Lol

[eternal stag]

what do you need help with?

[crisp sigil]

I got it

No worries.

[wary ledge]

What are most folks using as an AI base for movement? Specifically I suppose movement patterns?

[alpine glacier]

I think it depends on how your troops move along your map. I'm using navmesh agents for a prototype that uses navmesh for handling movement in the map. But for another protoype in a tile based map I needed to create my own AI movement with the my GridManager handling moves towards the tiles.

[alpine glacier]

Still need help with? Share more about what u have and what u want

[crisp sigil]

I think I have what I need, I didn't need anything special because it's an ability. So I just made it when I activate the ability the companion appears and if an enemy hits a collider I placed infront of it, it'll destroy it. It's a play on an infinite runner meets a platformer.

[alpine glacier]

Nice

[calm isle]

hey wrote this script that makes ai avoid/walk around player, but the navmeshagent get stuck in the corner, any ideas how to solve this? fixed

[hearty patio]

I'm trying to override the NavMeshSurfaceEditor.. does anyone know the proper way to get the type for the existing editor?
this does NOT work:
System.Type type = Type.GetType( "Unity.AI.Navigation.Editor.NavMeshSurfaceEditor, UnityEditor.Editor" );
(NavMeshSurface and tools are currently installed as a package).. thanks

[hearty patio]

here i'll answer my own question in case someone comes searching for the same thing.. this is it:
System.Type type = Type.GetType( "Unity.AI.Navigation.Editor.NavMeshSurfaceEditor, Unity.AI.Navigation.Editor" );

[calm isle]

but is this editor code? will that even run after build?

[tribal agate]

it looks like they're trying to override other editor code, so presumably it doesn't matter whether it runs in a build or not

[livid viper]

How can i setup neural network in c#?

[obtuse solar]

Does line of sight algorithms fall under AI ?

[eternal stag]

I would say no

[real sonnet]

I would say yes, because a line of sight is a technical implementation for an AI sensor

[eternal stag]

What about rendering?

It's also a technical implementation for an AI sensor

Line of sight isn't related to ai, it can be used by ai sure

The same way floodfill can be used for ai

Or distance comparaison

[tribal agate]

the same logic could be applied to a FSM. FSM have tons of applications outside of AI. It's just a general programming pattern

but because it has applications in the AI context, it is appropriate here

[livid viper]

How can i setup Self learning AI

[eternal stag]

Look at mlagent tutorials

[alpine glacier]

the ai has lost its mind

whenver this cursed navmesh touches the player it throws the player to 0,0

there is NO CODE that even has a collision check for this to be possible

it just does it out of NOWHERE

nvm fixed

[eternal stag]

@alpine glacier lol what was it?

[alpine glacier]

I had a collider that wasn’t a trigger on my Post processing volume

[keen quiver]

does anyone know why having NavMeshLink causing my performance to go REALLY bad? the scene takes around 5 minutes to load. I'm trying to generate procedural world out of small prefabs, the prefabs have prebaked NavMeshSurface from the Github Nav Components repository. They work, generating procedurally with just that takes a couple seconds max. But the agent does not move, I researched further and it stated that I had to use NavMeshLinks, I did so, It worked with having like 3 or 4 per scene but procedurally generating with over 500 prefabs NO?

how else am I supposed to have procedural world..

[copper current]

@pure scarab its been a year

[pure scarab]

Seems like you had a wild lag spike

3.156e+10 ping

[copper current]

yeah man

got a new pc

new wifi too

now i have a good pc but mid life

[pure scarab]

Dw my laggy friend ittl be better

[copper current]

the voices are getting louder

all i have left are the voices

[broken geode]

Hi im making walking AI (with tutorial) but for some reason if i hit Bake nothing is happening, why is that? Anyone can tell?

[timber musk]

U messed up?

[tribal agate]

Are the surfaces you want to be baked marked static?

[broken geode]

where can i see it?

[tribal agate]

The checkbox in the upper right corner of the inspector

[broken geode]

it works now, thank you!

[alpine glacier]

For an AI what functions do you think makes it smart

It has vision, pathfinding, hearing to listen to the players footsteps

gonna try to make it mess around with light switches and closing doors

Any functions anyone can think of which shows it's smart?

Any input/advice would be helpful

[real sonnet]

Usually AIs are more dumb and simple than non-coder players assume they would be.
It's not about how smart you can code your AI, but more about which behaviour your players witness and interpret as intelligence
For example this talk could explain better than me https://www.youtube.com/watch?v=1xWg54mdQos

[alpine glacier]

I've seen a couple of talks/lectures about not making the AI actually smart. However, this is not for a game more of a university project

But ty anyway

[nocturne bison]

What solutions do you guys use for making behaviour trees in the editor? I'm having a hard time finding one that's free and not broken so I'm considering to buy one off the asset store

I tried BonsaiBehaviourTree but it takes a dump every time I edit a node's code and deletes the entire tree so it's not viable

[tribal agate]

KiwiCoder on YouTube has a decent tutorial for making a BT editor. I think he also released the finished version of it

[dapper remnant]

Hi I have a quick question about how to get if the enemy is moving so I wanted to know if I can do that with the velocity component of the NavMeshAgent

Ping when replying please

[granite spire]

I'm making a car race game with ai's and I want the cars to avoid each other how can I do that

[lavish sinew]

I have implemented a nav mesh agent for an enemy AI to attack a target. When it gets to the target it instantiates projectile and attacks. My issue is the agent gets kinda stuck when at target and shakes vigorously trying to move like it's stuck on the target radius.

[velvet arrow]

have you set the "Stopping distance" to far enough so it doesn't collide with the target object?

[lavish sinew]

How would I introduce the stopping distance and add it to my script Im fairly new with all this.

?

[granite spire]

https://paste.myst.rs/nvfwcrkl It keeps telling me out of array bounds but I make it if it's bigger before it's applied to reset

[austere fox]

Could you rephrase the last half of that

[granite spire]

found how

[broken sequoia]

can someone help me make a ai neighbor for my hello neighbor rip off game (im making a sequel to it bc i loved watching a youtuber playing when i was 8 :)** **

[wary tide]

thats kinda easy, i think. so im going to assume ur using nav mesh, just setup navmesh like usual. make the guy's property where he wants to walk or rather where he's able to walk and roam around if that's what you want, so draw a sphere on the neighbour
so something like this:

    private void OnDrawGizmosSelected()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(transform.position, attackRange);
        Gizmos.color = Color.yellow;
        Gizmos.DrawWireSphere(transform.position, sightRange);
    }

do something like this

playerInSightRange = Physics.CheckSphere(transform.position, sightRange, whatIsPlayer);
playerInAttackRange = Physics.CheckSphere(transform.position, attackRange, whatIsPlayer);

as bools

than create if statements like such

        if (!playerInSightRange && !playerInAttackRange) Patroling();
        if (playerInSightRange && !playerInAttackRange) ChasePlayer();
        if (playerInAttackRange && playerInSightRange) AttackPlayer();

create those functions yourself which would just be the agent setting a walk point and setting its destination the walk point, if the player is in the sphere set the destination of the agent the player, in those if statements you could add a bool so for example hiding and make that a factor to whether he'll chase the player, if the player is in the neighbor's attack range let's just say you'll reset the scene

you could also add a raycast so the neighbor isnt able to spot the player behind walls and incorporate that into your if statement

    void DrawRayCastToClosestEnemy()
    {
        distance = (player.transform.position - this.transform.position).normalized;

        Debug.DrawRay(this.transform.position, distance * 40f, Color.red);
        wallDetectionRay = new Ray(this.transform.position, distance * 40f);
    }

its not my intention to spoon feed you everything except the physics parts

im intentionally leaving everything else out

happy developing ;), always remember that youtube tutorials still hold the information you want usually even if the setup of the youtuber isn't tailored to you

[lavish sinew]

I've worked out how to stop nav mesh agent when it reaches a target, but this also stops projectile instantiation, how can i have it stop but continue to fire projectiles?

https://gdl.space/avoduceqez.cs

[wary tide]

that shouldn't be happening?

are you stopping it via sphere?

the way i do it is

create a sphere, check if the sphere collided with the enemy, if so set the position to transform.position

and then instantiate the bullet, look at the enemy, etc

that's just the way i do it

[lavish sinew]

The enemy just instantiates one projectile and not anymore. Before I put the 'is.stopped' code in the enemy kept on firing.

[wary tide]

as i said

i do it in a different way than from you do

so i can't be much help

[lavish sinew]

is there no way to just stop movement, instead of all of its actions ?

[wary tide]

set its destination to

[lavish sinew]

you know a simple stop movement of object when it reaches target?

[wary tide]

transform.position

CREATE A SPHERE IF WHAT EVER YOU WANT IT TO SHOOT COLLIDES WITH THE SPHERE SET * sorry caps

agent.SetDestination(transform.position);

transform.LookAt(whatyouwant.transform.position);

[lavish sinew]

hang on

[wary tide]

^you can see how to check collision and create a sphere up there

[lavish sinew]

https://gdl.space/wuwuwiwujo.cs

because I have coding similar to that already

[wary tide]

ya

i use that code as an example

since the code is quite easy for new programmers to understand

[lavish sinew]

but ive got all that code which was hard enough finding and altering, and adding code based on my needs.

i really dont want to have to change it all to mess the game up

sorry if that doesnt help you help me

[wary tide]

ask someone else ig

i wont be of help then, sorry

i try to do the bare minimum while helping as to not rewrite your code for you

[lavish sinew]

yea im all for bare minimum i cant stand lines and lines of code

[wary tide]

if you want alter your code so it fits how i presented it

if not, that's fine, your choice

[lavish sinew]

so when you say create a sphere, do you mean a game object or like a mesh that the enemy goes over as a trigger?

[wary tide]

!

[lavish sinew]

oh god wouldnt even know where to put it in script lol

[wary tide]

just in the script

like a function

[lavish sinew]

do i need the gizmo colours part?

[wary tide]

no

[lavish sinew]

but add the player in sight range draw wire sphere etc lines ?

[wary tide]

?

gtg use the information i showed and incorporate that into your game if you want

[lavish sinew]

okay thank you

hey thanks worked, sorry to have been dramatic, thanks for your help

[thorny pasture]

How can I make trees on terrain influence nav-mesh

[granite spire]

Does navmesh run on mobile

[molten sequoia]

Yes.

[molten sequoia]

Afaik Terrain trees should carve navmesh by default.
If you are using NavMeshSurface, you might need to use this https://github.com/Malikir324/Unity-NavMesh-adding-Obstacles-To-Terrain-Trees?

[dusty harbor]

how do i import navmesh to my unity project?

[tribal agate]

iirc the basic NavMesh is part of the core editor and doesn't need a package. Just open the navmesh window via Windows > AI > Navigation

If you want the NavMeshComponents package, instructions are here: https://docs.unity3d.com/Packages/com.unity.ai.navigation@1.0/manual/index.html

[dusty harbor]

i need navmeshSurface

[dusty harbor]

i dont get it

i dont see package

[clever crag]

EDIT: Solved; you need to add NavMesh modifiers to any components that should be modified.

Hi everyone, been struggling with something for the past few hours and figured I'd come here because my understanding doesn't seem to make sense and I'm hoping I'm wrong 🙂

Basically, I have a city which has randomly generated roads, consisting of road tiles. The road tiles also have a sidewalk on each side. There's two navmesh surfaces which are baked after the roads are generated, creating a navmeshsurface of road and another of sidewalk. Then, navmesh agent cars and people move along them as appropriate. This has all been working fine for months. The actual navmeshes are based on box colliders as my roads are just planes with textures.

However, today I wanted to add cost. I was making a parking lot and wanted my pedestrians to be able to cross it, but to prefer the sidewalk around it instead. However, it seems you can't add a cost to a navmesh surface, only to static baked navmesh objects. And those static baked navmesh objects are based entirely around one single agent type.

Is it correct that you can't assign cost on navmesh surfaces? That seems like a major flaw in the system. At worst I can use the static one for my pedestrians and a navmesh surface for vehicles but I'd really like cost to be usable on navmesh surfaces if possible.

Please ping me if you reply!

[dusty harbor]

why cant i get navmeshsurface?

[dusty harbor]

@tribal agate https://github.com/Unity-Technologies/NavMeshComponents i downloaded this file as a zip

extracted

it

now what do i do?

[real sonnet]

it's a package now

com.unity.ai.navigation

[dusty harbor]

but what do i do with that?

[real sonnet]

Then menu GameObject > AI > NavMesh Surface

[real sonnet]

from git url

[dusty harbor]

i am so confused

[real sonnet]

use com.unity.ai.navigation as the git url

not the displayed web browser url from the github

[dusty harbor]

then why is it called the git url?

it is confusion

[jolly crater]

why does my navmeshagent not want to collide with my target?

I don’t want it to avoid it, I need it to trigger a game over screen and instead it just stops right before touching the player.

https://answers.unity.com/questions/1899532/my-nav-mesh-agent-wont-touch-its-target.html

[vital parcel]

im trying to make a AI for the enemy in my game and its the first time ive done so, and it keeps giving me this error and i cant seem to find the cause https://docs.google.com/document/d/1iQnvoLsIxJ08o-OfbYdJtDuNq3DQFjvbVbwMpoCGtl0/edit?usp=sharing the error is a argument index out of range exception on line 176

[tribal agate]

look at #854851968446365696 for how to post code. Google docs is a... creative... solution.

If you're getting an index out of range exception, you are probably either:

1. looping through an array/list and going 1 spot too far (ie myList[myList.Count] as your last element instead of myList[myList.Count - 1])
2. Looking backward in your array and doing it on the first element, ending up looking at an element with a negative index
3. modifying your collection while looping through it, screwing up all your indices.

[vital parcel]

(i fixed the errors that unity was giving me) so ive been working on my enemy pathfinder that uses A* for a while now and cant seem to get it to work i was using https://www.geeksforgeeks.org/a-search-algorithm/ this site to find pseudocode for the algorithm to base my code on but when run it doesn't path find to the player like i want it to if someone could try to find what I've done wrong id appreciate it

[rigid imp]

anyone have any idea why my agent says it's not placed on a NavMesh? (it is)

[eternal stag]

it'S not

[rigid imp]

very helpful...

it was actually that I was using a custom agent type instead of the default humanoid

[hearty sphinx]

Hello, I am creating a car racing game, would you have a video to help me for code AI racer, and as a bonus with the possibility of choosing different level of performance?

[brittle galleon]

Question about the NavAgent... Is it deterministic enough, that it will simulate the same path EVERY time? If I boot up 10 applications, and start the agent in the exact same place in world space in each application...and feed it the same destination in each application...will all 10 take the EXACT same path?

[tribal agate]

here's a thread on the subject: https://forum.unity.com/threads/controlling-when-the-navmeshagent-updates.1068626/

[clever crag]

How can I make a navmesh agent not attempt to path around other agents, but still be able to collide with them? I want to handle the avoidance myself but if I set obstacle avoidance to none they can just travel through eachother. The docs say "Setting avoidance to none, will only resolve collision" but they just phase into eachother right now.
I do have a rigidbody and box collider on them, but removing those made no difference. Ideally I want to know about the collision as well

[rain summit]

Hello, how can I force some agents to not use NavMesh links? Is this possible at all? This part of the code is not helping

[rain summit]

Fixed it by turning it false on the prefab. For some reason this code is not working

[clever crag]

Sorry, me again 🙂
Can I make it so my agents can't be pushed? Currently if one agent is stationary and another agent collides with them, the first agent gets moved. I dont want that. Both agents are the same type

[nocturne bison]

look into dwarf fortress

[jaunty raft]

the basis to solving this is coming up with a computational model (algorithm + datastructures + semantics) of what "developing a society" means and then just running that model (likely a simulation) over as many iterations as it takes to reach a state that is plausible and interesting for the purposes of your game, this is what dwarf fortress does and in it you can explore every detail of the generated society from character biographies to events and inscriptions in artefacts, settlements and mythology.

most of that stuff is seeded by a random number generator, some basic noise functions and filters on top of those. i.e. there is a noisy initial state that gets "carved" into meaningful shape by the simulation/model

Also check out the dev-log of Ultima Ratio Regum (Mark R Johnson)

[hoary shell]

I want enemies to avoid each other so I gave each a navmeshmodifier and set it to not walkable, but they still all group up in hallways instead of taking another hallway. So is there a better way to do this?

[frosty knoll]

Hey all! First time posting here. I appreciate your patience.

I have been working with mlagents and have been through a few of the tutorials. Now I am building my own from "scratch" to perform ICP ( iterative closest point ), however, I am running into this issue where the agent doesn't seem to be properly adding the observations properly. I keep getting this error:

although, I have set the vector observation space to 4, ( 1 vector3 for the position, and another for the cumulative loss of the ICP, which is a float )

`
public override void CollectObservations(VectorSensor sensor)
{

    Debug.Log("Adding observations");
    
    getPointCloudDiff();
    sensor.AddObservation(targetObject.transform.position);
    sensor.AddObservation(pointCloudDiff);        
    //Debug.Log(sensor.GetObservationSpec());
    //Debug.Log($"Getting observation: {pointCloudDiff} {targetObject.transform.position}");
    
}

`

[alpine glacier]

i have a problem with astar.. the ai isnt a square, its a rectangle, thus the hitbox isnt optimized. it moves throught blocks with the head and the destination is also calculated from the center. any way to fix that?

[granite osprey]

I'm trying to set up my nav mesh at run time. I've watched like 4 videos, but the problem is that I'm using an asset pack that procedurally generates my map using the tiles that I've created, however it seems that no matter what I do, I cannot get unity to generate a NavMesh using NavMeshSurface components (tied to all of my floors).

The map generates on start at the moment. I had my Bake function (attempt) happening right after it and it didnt work (gave an error), and I also tried invoking it (also added a Debug.Log to see if this part of the code ran) and it doesnt even run the Debug.Log

    public void Bake()
    {
        PathableArea();
        surface[1].BuildNavMesh();
        Debug.Log("WORKING");
    }

    void PathableArea()
    {
        surface = GameObject.FindObjectsOfType<NavMeshSurface>();
    }``` this is my latest attempt, of which didnt work

I've also tried serializing the surface field (like in the video), but since my map is generated at start, i cant serialize it, i need it to grab the "floor pieces" after generation. Additionally, through experimentation I find that I only need one NavMeshSurface to build the NavMesh, so I've tried to specifically declare one (on my level generator, that holds my generation scripts) and having it build the NavMesh after map generation and it still won't build the NavMesh

[alpine glacier]

Can I just get a quick easy ai for a monster horro game thanks

[severe seal]

YES PLEASE SOMEONE

what shat said

[tribal agate]

quick AND easy!

public class Monster : Monobehavior
{
  [SerializeField] private float MoveSpeed;
  [SerializeField] private float AttackRange;
  [SerializeField] private GameObject Player;


  public void Update()
  {
    if(Vector3.Distance(Player.transform.position, transform.position) < AttackRange)
    {
      Debug.Log("The monster got the you! You're dead");
      return;
    }

    transform.position = Vector3.MoveTowards(transform.position, Player.transform.position, MoveSpeed);
  }
}

[severe seal]

god bless your soul

[severe seal]

how do i use it? Ive made the script and put it on a capsule and it doesnt move?

[alpine glacier]

is this a good ai for patrolling and chasing player? i just took it from yt and edited it

credits to Dave / GameDevelopment

[hoary shell]

Is there a way to make an object face towards the point they are walking to (so always looking to the point of their velocity)?

[hoary shell]

Just skimming over it it looks fine and simple (I just would make all my values public)

[severe seal]

which video did u find it from?

[tribal agate]

transform.forward = rb.velocity;

[jolly crater]

my tip would be to use navmeshagent instead, it has some funny problems but it works way better and is easier to get into.

that's only if you're not too far into the project

[unkempt stratus]

need help: the nav mesh agent is working and moving to the target position but when he stops there and i set a new target position through a on trigger enter he is not moving anymore ... maybe i am just stupid

[hoary shell]

I use nav mesh agents, they don't have a rb.

Unless nav mesh agent has velocity, I can check that later.

[patent mesa]

How do I use the Nav Mesh AI for a level that is made from scripts. Ie. the FPS shooter learning project (the one inside the body)? I tried looking up videos and was struggling, the blue walk areas were not as well layed out as what I saw in videos

[noble fog]

There was a live session course that was published on Unity Learn about creating dynamic navmesh, also searchable on youtube. It is quite good. As long as you generate your level in a cohesive way dynamic navmesh generation should work fine.

[crisp musk]

Hi, I have an issue with NavMeshAgent, that is driving me nuts. When I instantiate a prefab with a NavMeshAgent component, I set the transform.position of the gameobject holding the component and also destination. But instead of starting at the transform.position, the agent starts at another position far away but nearer to the destination (at an edge of the NavMesh). I sample the position I set as transform.position to ensure, it is on the mesh. updatePosition=true, but should IMHO not cause the issue.

[severe seal]

use this i think https://hastepaste.com/view/hcnxu4Zcy

add the script to whatever you want to do the chasing

then drag the thing you want to be chased to the inspector script named "enemy dest"

make sure to have nav mesh on it

and i think itll work

[tribal agate]

You may have to warp the agent to the correct position when you initially set it. https://docs.unity3d.com/ScriptReference/AI.NavMeshAgent.Warp.html

[granite osprey]

Should I be concerned that my code (which was completely find and returned no red squiggles or anything two days ago when I wrote it) now seemingly has errors in every script (imported and written by me) that uses these NavMesh components seems to have issues now?

and even moreso peculiar, my game still runs exactly the same, none of these seem to be reflected in unity when i press play

[tribal agate]

sounds like the problem is in your vs code project files. In Preferences > External Tools there is a button to Regenerate project files if you're using VS. I don't know whether a similar option exists for vs code, but if it does, try that. If not, you could just delete the project files and let vs code regenerate them when you open a script. You'll lose your open vs code tabs, but it shouldn't matter other than that.

[granite osprey]

ty

[crisp musk]

Thanks. That did the trick. With warp, the synchronisation between the agent and go seems to work with updatePosition, as I tell the agent the starting position and it does not get overriden by it initially. At least that is my assumption, why it works now 😛

[steel vine]

How do you make an Ai that circles around player like in combat games

[heady chasm]

Hi, I was looking for a way to make my navmeshagent run away from the player and found this:

    public float multiplyBy;
(...)
        fleeStartTransform = transform;
        transform.rotation = Quaternion.LookRotation(transform.position - player.transform.position);
        Vector3 runTo = transform.position + transform.forward * multiplyBy;
        Debug.Log("runTo = " + runTo);

        NavMeshHit hit;
        NavMesh.SamplePosition(runTo, out hit, 5, NavMesh.AllAreas);

        transform.position = fleeStartTransform.position;
        transform.rotation = fleeStartTransform.rotation;

        agent.SetDestination(hit.position);```

It looks very useful but I tried it and the agent just faces away from the player, doesn't actually run. I also don't understand some parts: what the "multiplyBy" is for, and why we set the transform to the startTransform before setting the destination. I would like some help to understand these lines and to make it work ^^
**Actually, I just realized it actually moves, it follows a really short path and stops again, but doesn't run constantly

[lost verge]

It tells you in the bottom right corner

VSCode can't find dotnet

[tribal agate]

multiplyBy should be called fleeDistance. That determines how far it runs.

[vital parcel]

So iv been following https://www.youtube.com/watch?v=alU04hvz6L4 this tutorial to implement pathfinding for my game but the ai seem to work just wont ever take the shortest path ive attached the code if someone could look through it and find the problem id be very grateful

[real sonnet]

Looks like your AI absolutely NOT want to go straight horizontal 🤔

Here it is, you never evaluate right neighbor
need a x + 1, not x - 1

your AI should then go straight to the right instead of that zigzag pattern 😛

[vital parcel]

Thanks

[dark hamlet]

ok so here's a weird one.

I have a player model that has IK Targets (red balls). It also has NavMeshAgent and Animator components.

For the Animator, update mode is set to Animate Physics. For NavMeshAgent, area mask is set to Everything.

When I play the game, the IK Targets start falling through the floor. If I change from Animate Physics to Normal Mode, the IK Targets stop falling. Likewise if I change area mask to None, the IK Targets stop falling.

Anyone know what's going on? It's not affected by Rigidbody gravity because I turned that on/off and no changes were seen.

I require Animate Physics to be enabled, otherwise my root motion causes the model to float away. And the issue with IK Targets falling through the floor is that it's causing my colliders to stop working..

[dark hamlet]

nvm solved it. needed to bake Height Mesh along with the navmesh in advanced settings

[alpine glacier]

"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
thats the only error i get. no details. help

[vital parcel]

the solution i received solved the problem going diagonally but when going up it also prefers to zigzag instead of going straight

[tribal agate]

In your if statement checking for the up node, you are checking whether the node is above the top of the grid. You should be checking if it is below the top of the grid.

[vital parcel]

thanks

[wheat copper]

If I have two additive physics scenes loaded, each with their own set of walkable/unwalkable areas and obstacles, each baked separately, and they overlap in world space, and the agent is in one of those physics scenes, how do I get the agent to ignore the navmesh in the other scene, and only concern itself with what's in it's own physics scene?

[humble oyster]

what is the AI planner? The linked page in the pins seems to be missing

[real sonnet]

If I remember well, it'a an experimental package for some kind of GOAP AI

link of package is https://docs.unity3d.com/Packages/com.unity.ai.planner@latest/index.html

[deep socket]

quick question, whats better waypoint system or navmesh Ai for a towerDefense game?

[jaunty raft]

They are essentially the same. A navmesh is just a more general and flexible version of a network of waypoints

[deep socket]

wont affect too much of performance?

[jaunty raft]

depends on what you do with it

[broken geode]

Im making navmesh (the orange area on the map) but it only bakes half of the thing i need. Anyone can tell why is that?

[tribal agate]

Is the stuff that's not being baked marked static?

[broken geode]

Yes its 1 object

[vital parcel]

the ai i just finished can path fine i just cant get walls to work i added the enemy ai script i made which just generates a random point on a grid to path to then set that as the position when you left click and the pathfinder script which makes that path the enemy ai script set the point as unwalkable on line 36 and pathfinder script handles it on lines 59-64

[real sonnet]

 void SetUnwalkable(int x, int y)
    {
        pathfinder.GetNode(x, y).SetIsWalkable(!pathfinder.GetNode(x, y).isWalkable);
    }

This doesn't make a node unwalkable everytime. It inverts the boolean

But I assume isWalkable is initialized to true

though everytime you click you switch your node between walkable or not if I read well

Also not related but here you pick a random x on the vertical, and a y on the horizontal axis. Should be okay with a square grid but please try with another shape of grid to be sure

x = Random.Range(pathfinder.GetGrid().GetHeight() - 4, 0);
y = Random.Range(pathfinder.GetGrid().GetWidth() - 4, 0);

I'd just invert x and y here just to stay consistent

I didn't dig further but try to see if that makes sense at first :p

going to bed, good luck

[vital parcel]

that was the problem another one was i was getting rid of path line after 1 sec so i couldn't see if it was avoiding that cell so it works now 🙂

[real sonnet]

Nice, happy coding 👍

[trim tapir]

I was following along with an AI behaviour tree tutorial from KiwiCoder to get to grips with BTs and to learn to create a UI for editing them, his system works well and although I can't claim to understand the entire thing just yet, I was wondering whether it was actually a good idea to follow his method

Notably, his trees and nodes are instances of scriptable objects, which makes sense in terms of editing the behaviour tree using a GUI, however the Unity docs say that you shouldn't be using ScriptableObjects to call functions, and yet both the tree itself and the nodes have functions within them

Is this ok? Obviously if it works, it works, but I don't want to build a system relying on KiwiCoder's method and then in future engine updates find that you can no longer use functions within ScriptableObjs, for example...

Any thoughts? :)

[jaunty raft]

you will always be able to call function on and from scriptable objects, the unity recommendation can be safely ignored if you understand exactly how SOs operate. Unity has introduced SOs for a specific purpose that has long been extended by people using them for all sorts of creative things

[trim tapir]

Ah so it's more of a suggestion that you don't use functions, and not a limitation?

[jaunty raft]

if you want a proper BT solution you will need to come up with a custom UI in a custom window

[jaunty raft]

correct

[trim tapir]

I've got that part sorted, I was just making sure I didn't mess up the project before I'd properly started on the AI!

[trim tapir]

Thanks for your help :D

[jaunty raft]

i would not worry too much about how you represent your nodes, there are many approaches that work well, and you probably will rewrite bits of it no matter which option you pick

if you want to gain perspective, i'd have a look at some of the established BT assets and compare their architecture style to yours

[median sage]

hello, could anyone help me, I setup navmesh and added script to move my agent, it moves but it rotates and now its on its side and I cant do anything to stop it

using UnityEngine;
using UnityEngine.AI;

[RequireComponent(typeof(NavMeshAgent))]
public class Cheese : MonoBehaviour
{
    protected NavMeshAgent Agent;
    [SerializeField] GameObject player;
    [SerializeField] private float rotationSpeed = 6.0f;

    void Start()
    {
        Agent = GetComponent<NavMeshAgent>();
    }

    void Update()
    {
        MoveAndRotate();
    }

    private void MoveAndRotate()
    {
        Agent.SetDestination(player.transform.position);
        // Vector3 direction = (player.transform.position - transform.position).normalized;
        // Quaternion lookRotation = Quaternion.LookRotation(direction);
        // transform.rotation = Quaternion.Slerp(transform.rotation, lookRotation, Time.deltaTime * rotationSpeed);
    }
}

NavMesh agent settings:

[cloud siren]

This shit doesn't work like ever. mf doesn't consider walls at all. Tries to walk through gaps in walls.

[alpine glacier]

My character is floating halfway through the navmesh while moving around - like he's playing the "fall" animation. It's on terrain. I've tried adjusting colliders and base offset. It changes depending on where I walk. Any ideas on what to do?

[fluid cave]

Anyone know of a method to check whether a NavMesh agent's path requires an OffMeshLink to reach it's destination? I tried using NavMeshAgent.NextOffMeshLinkData, but from what I can tell it will show for any OffMeshLinks that the path happens to intersect, regardless of it intends to use it

[lucid cradle]

How performance heavy if i mark all my nav agents as also Obstical ?

[pastel fox]

Hi all. I have a NavMeshAgent that I want to control the position and rotation of via root motion in my animations. I have set up most of it and it works well, I'm just struggling with the rotation. While the agent is moving towards the target, I obviously want it to rotate correctly as it's following the path. So as I'm calculating the required rotation to pass to the animator parameter, what should I be using as the target? I thought it might be steeringTarget, so the rotation is constantly causing the agent to face the next point on the path. Does this sound right or is there other things at play that I should be considering (such as nextPosition or transform.forward)? Thanks!

[pastel fox]

Aha, got it:

Vector3 targetDir = agent.steeringTarget - transform.position;
float angle = Vector3.Angle(transform.forward, targetDir);

Thanks to https://docs.unity3d.com/ScriptReference/Transform-forward.html

[young quail]

how can i check if my navmeshagent's destination is out of bounds?

[stone owl]

out of bounds to what ? 🤔

you can check if it's reachable by calculating a path to the destination

[alpine glacier]

How does one remove the deceleration when a navmeshagent is close to their target, as I would rather have an instant stop.

[lost quarry]

So I have been trying to implement a* pathfinding for 2D and when I try to move to an inaccesible space the game crashes
this is happening because its looping through the entire grid trying to find a path, forever. Whats the best way to fix this? set a limit to how far it will go, or is there a better solution?

[tribal agate]

sounds like you have a bug in your a* implementation. You should be removing nodes from your open set as you check them, and if nodes are in the closed set already you shouldn't add them back into the open set, so you never get an infinite loop. When you run out of nodes in the open set to check and haven't found a path, you just return null or w/e your failure condition is.

[lost quarry]

thats not the problem, the problem is i never run out of open nodes

like there are infinite nodes to go through

But it doesnt go through nodes it already "processed"

[tribal agate]

Is your grid infinite? If not, then either you're rechecking nodes you've already checked or... 🤷‍♂️

If you're grid is infinite, then yeah, you should probably just set a limit on the total path length

[lost quarry]

alright thanks

[slow ferry]

Hey, how can I make a navMeshAgent only go up, down left or right.

For now I snap the velocity vector to the closet one but that makes a zig-zag if the angle wanted is too close to 45°

[stone owl]

you could try A*?

[lucid cradle]

How can i stop my agent (Navmesh) from looking at its destination, While its moving to destination, i want it to look at a specific transform. i've wrote this code, but it looks like whatever SetDestination does, it overrides it.

[stone owl]

might want agent.updateRotation = false;

[lucid cradle]

Thank you:)

[tribal agate]

no, navmeshagents don't have a built in waypoint system (as far as I know)

[alpine glacier]

It’s easy to make one though

[stone owl]

There is even an example in unitys documentation lol

[brittle galleon]

Anybody know why there is an "Agent Radius" setting on the Navigation Bake settings, but then there's also a "Radius" under "Obstacle Avoidance" on the NavMeshAgent itself?

[brisk cairn]

Hello, I was wondering the same thing few weeks ago and I believe the one in the bake panel is more a kind of precision, to calculate the navmesh precision (so it should correspond to your smallest radius used if you have many agent radius) then your agent radius is used to find walkable areas as well as avoiding corners/walls collisions for examples.

[alpine glacier]

Heyy, so... I'm having an issue with the script "NavMeshSurface". So I've checked every gameobject and child and Cleared the Bake and deleted all the scripts for it but there is still a blue bound where AI can walk and it's somewhere where it would be game-breaking. Any help? 🙂

This is with all of the scripts deleted in the game objects

[stone owl]

Your AI can't reach the top of the roof anyway so I wouldn't worry about it too much.. but you can always place a Navmesh obstacle

[alpine glacier]

I'll try placing a nav mesh obstacle because my survivor AI always teleports from the bottom onto the top

[fringe sky]

Hi, I implemented a "follow" steering behavior but I'm having a problem when a path has a 90 degree or > change in direction. The character turns in the opposite direction (like it mirrored the vector of the new segment). See the image / video https://www.youtube.com/watch?v=m9Jztb6ml8s. Not sure if this is something normal I should be correcting for or if my approach is wrong. Please help. Here is my code for Follow() and FindProjection()```internal float3 Follow(float3 segmentStart, float3 segmentEnd, float speed, float lookAheadDistance, float reachDistance, out bool segmentEndReached) {
var predictedPosition = this.velocity * lookAheadDistance + this.position;

currentWaypointDistanceSqr = math.lengthsq(segmentEnd - this.position);
if (currentWaypointDistanceSqr < reachDistance) nearSegmentEnd = true;
if (nearSegmentEnd && currentWaypointDistanceSqr >= previousWaypointDistanceSqr) {
    // Reset values for the next segment
    previousWaypointDistanceSqr = 0;
    nearSegmentEnd = false;
    segmentEndReached = true;
} else {
    previousWaypointDistanceSqr = currentWaypointDistanceSqr;
    segmentEndReached = false;
}

var target = FindProjection(segmentStart, predictedPosition, segmentEnd);

return Seek(target, speed);

}

internal float3 FindProjection(float3 segmentStartPos, float3 predictedPos, float3 segmentEndPos) {
var v1 = predictedPos - segmentStartPos;
var v2 = math.normalize(segmentEndPos - segmentStartPos);
var projection = math.dot(v1, v2);
v2 *= projection;
return v2 + segmentStartPos;

// Same result when using unity's projection
//var projection = math.project(v1, v2) + segmentStartPos;
//if (showProjectionData) Debug.Log("FindProjection()   v1: " + v1 + "   v2: " + v2 + "   projection: " + projection);
//return projection;

}```

[smoky stump]

Does anyone know why my NavMeshAgents are getting stuck on each other?

[alpine glacier]

So I was using the navmesh system and I added a navmesh modifier to walls and clicked override area and set it to non walkable but that only eliminates the top. how do i eliminate the floor inside of the walls? no the walls are not hollow

the first pic is the inside of the wall and the bottom is right to the left of the wall

[alpine glacier]

any tips on making it so NPCs dont hug walls

[lucid cradle]

How can i let my navmesh agent know that theres an object higher than the floor, so they cany navigate to it (if the top of their agent bounds touches it ect?)

[alpine glacier]

You dont have to edit your actually NPC but you can go to the humanoid agent or whatever agent your using and alter the radius/height which doesnt change visuals but it can create kind of a gap between the wall and your hallway

like this

oh very nice

[stoic kestrel]

why i don't have nav mesh surface component ?!

[real sonnet]

Did you install the package ?

[stoic kestrel]

bru

i'll not answer this question.

[stone owl]

definitely install the package

[nova stump]

why does unity take sooo long to open

[stone owl]

wrong channel

[nova stump]

where?

[stone owl]

I don't know maybe #💻┃unity-talk

[stone owl]

In case you haven't already solved this, have you tried changing the agent settings in the bake tab?

bake settings should sync up with the agent component itself, the height and radius etc

[vital parcel]

So i made an ai that can path to a game object and it works fine but when the object its pathing to moves it slows down and i cant find why. heres the code https://paste.ofcode.org/KxP4L7ctRusaa4hydh3Rnv

[upper grail]

hey guys, is there a way I can make the nav mesh bake certain areas of a terrain? I have large underwater section that I dont not want to bake so I can save bake time

[meager lichen]

I need some help. I am making a game where a lumberjack and miner ai is needed but I can not get it to work I have started over at least 8 times

[spark bolt]

Idk if u solved but i think u need to adjust the node size in the pathfinder

[meager lichen]

I need help with ai pathfinding. Oh and can a gameobject be used as a node

[mighty folio]

Is it true that nev mesh does not work with terrain?

[mighty folio]

people usaully help more if you say what precisely your problem is

[meager lichen]

a ai that can move to a tree, cut down the tree and bring it to a truck

[quaint bridge]

I am getting an error where the "Behavior Parameters" script says
Object reference not set to an instance of an object
and I cannot prevent it from throwing that error
any fixes, I am on unity version 2021.3.2f1 and ML Agents version 2.0.1, thanks!

[rotund ginkgo]

anyone have steering avoidance tutorials? i cant find a good one for the life of me

im using A* for pathfinding and I was hoping theres a tool for steering that would pair with it

[tribal agate]

I found this website really helpful when I was working on steering: https://gamedevelopment.tutsplus.com/series/understanding-steering-behaviors--gamedev-12732

[lucid cradle]

I have a lava lake that is sitting above some floor, How do i disregard this lake for Navmesh, and use the floor beneath it instead?

it also gens on my roofs, Not really a problem but it probably takes more time, which i'd like to avoid

[valid ember]

Sent the objects you don't want to be walkable put them in a layer then make the layer non walkable.

[ivory cradle]

Anyone here familiar with Lip Syncing a 3D character?

[loud goblet]

I'm working on an simple AI for a ranged attack type character that wants to maintain a minimum distance from the player (on a navmesh). I was just doing simple vector math: calculate the distance to the player, if it's too small, calculate how far away we need to move to make up the minDistance, then navmesh.raycast backwards and set that as the destination. That works okay other than it tends to back itself up against a wall and stay there instead of moving somewhere else as the player approaches, or get stuck because it wedges itself so hard against somewhere in the terrain that it can't seem to escape. Any thoughts on an algorithm to try and be a little more intelligent about picking places as the player gets closer?

[lunar plover]

damn im doing that too

[median sage]

how do I check if my agent reached right/correct destination

[spice bobcat]

You could check if the player approaches too close like a dangerZone with the value close to the player melee range, and when the player is in the dangerZone find a new point on the navmesh that is very far from the player but the AI should ignore the player to allow it to escape

[spice bobcat]

Store the desiredPosition, determine a minReachedDistance, and when the distance between the agent and desiredPosition is less than the minReachedDistance you can consider that the agent has reached the correct destination

[median sage]

I was doing that but it turned out that I can't compare y position as it is offset by some small amount

[spice bobcat]

You could add the offset to the desiredPosition to correct it

[median sage]

this is my current function

    private bool IsOnDestination(Vector3 destination)
    {
        return (agent.pathEndPosition.x == destination.x && agent.pathEndPosition.z == destination.z);
    }

[spice bobcat]

I think this is a bit too strict to check perfect equality with ==
You should add a minReachedDistance and compare the distance instead of the exact coords

[median sage]

    private bool IsOnDestination(Vector3 destination)
    {
        return Vector3.Distance(agent.pathEndPosition, destination) <= 1.0f;
    }

[median sage]

this?

[spice bobcat]

Yes exactly, then you could make the 1.0f a variable instead of having it hard-coded

[median sage]

thxx

[spice bobcat]

Also you could add a gizmos with OnDrawGizmo, to show the radius with the minimum distance variable as radius, https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnDrawGizmos.html

And change the color when IsOnDestination is true like red to green

[median sage]

this only shows in editor, right?

[spice bobcat]

Yes

[median sage]

thx

[alpine glacier]

is anyone here familiar with the A* project?

I would like to know how I can dynamically update grid nodes tag the same way I can move a dynamically updating grid obstable

and how to use the built in local avoidance

documentation for a* project is hard to follow

[real kelp]

I created different games where I implemented the A* algorithm

[alpine glacier]

do you know how to dynamically update the tags on the grid?

I have a way of doing it. But I don't like how I do it

[alpine glacier]

anybody know what my issue is here? It's only happening in this building I just made
https://imgur.com/a/eqLKDhM

[real kelp]

With the tags what do you mean? The type of node?

[spice bobcat]

Maybe you have a isGrounded check that when false play the fallLoop animation and your building don't have the layer or tag well set

[alpine glacier]

the penalty tag for the node. anyway I have a solution use a queue

[distant valve]

He thinks he’s falling, make sure the floor counts as the ground

[alpine glacier]

@spice bobcat @distant valve thanks I’ll check the tags and layers

[distant valve]

np

[upper grail]

hey guys just wondering would it be possible to generate the navmesh around the player in a certain radius as the player moves instead of all at once because I want like a 500sqkm map and the nav mesh takes hours to generate any tips?

[real sonnet]

Yes you can. The navmesh components have an API to query at runtime.

I'd suggest watching the GDC talk on Death Stranding. You won't see code, but they did this + some other tricks to build navmeshes at runtime for their huge open world. So could give you some nice inspiration 🙂 and see where they struggled (like enemies following you and such...)

• I'm sure if your Google-fu is top notch you can find other studios sharing their implementation, as I can assume it makes sense for a lot of games

My bad it's not a GDC talk, but a Tommy Thompson video. He talks a lot about AI in games, I recommend the whole channel, but here you go for the specific video https://www.youtube.com/watch?v=oOdaUUHRcJI

Old code repo : https://github.com/Unity-Technologies/NavMeshComponents

Which is now officially supported as a package, here's the manual: https://docs.unity3d.com/Packages/com.unity.ai.navigation@1.1/manual/index.html

Hope all of this helps !

[upper grail]

Thank you so much @real sonnet This is beyond anything I could ever ask !!!!!!!! I will love learning all of this more in depth !

[real sonnet]

Awesome 👌 Happy coding !

[wary ledge]

Just curious if anyone has any good generic AI solutions using unity's navmesh agents.

I'm just talking about some basic things like moving close to the player, idle walking around the player while shooting, etc. Things like that I suppose.

[grand quartz]

When I try to bake a Navmesh on a cube (50-.5-50 in dimensions) that has been set as walk able, nothing shows up. What should I check for?

[glossy sundial]

Hey! General question: What would be the best approach to making enemy AI. I literally need something like Metal gear solid.
Enemy Patrol
Enemy Loafing off (sleeping , talking to themselves, eating etc)
chase. If they see you chase if you are not close
Attack if near by.

I need hearing and perception as well

I was thinking finite state machine 🤷‍♂️

[grand quartz]

Fixed, just needed to activate gizmos

[real sonnet]

Yes FSM is enough.
Hearing and perception/sensor can be achieved with trigger collider or distance check. Those would activate a transition from one state to another.

[glossy sundial]

Alright. perfect. Thank you.

[real sonnet]

You're welcome but looks like you already figured it out on yourself. Just needed a sanity check maybe ? 🙂 have fun !

[glossy sundial]

hahah Ya, was just curious if there where more simpler better approaches . A little tired of working on the my inventory system. Need to work on something different for the game

[winged cloak]

Evening chaps. Any idea why my Zombies love to get stuck in the same corner all the time xD

Seems to be all my zombies! 😦

[craggy wadi]

Hi, I want to ask, where do you start learning AI?

[molten sequoia]

The if else section of a C# programming guide 😛
While there are a lot of approaches for AI like statemachines, GOAP and HTN, a lot of AI can be done with very straightforward logic and state, especially if you are just starting out.

[molten sequoia]

How are you positioning them? There isn't a lot of info to go on.

[winged cloak]

Yeah sorry, very good point. I'm using some basic AI I took from a Udemy course

The main bits concerned are the wander behavior state, and the find new location method as the issue arises when they are wandering

https://sharemycode.fr/2g6

I could share more code if you like but my guess is the issue is in there somewhere.

[molten sequoia]

Looks like you aren't adding position to the direction, so the position target will always originate from 0,0,0.

Or in other words, using direction itself as the world position

[winged cloak]

Sorry, I'm not quite getting it. The code should find a new 'position' within a sphere from the gameobject (zombie), defined by the wander radius

Why is it looking over at 0,0,0?

[winged cloak]

Ok I've googled it and added the transform position and I think that should work?
Vector3 randomDirection = (Random.insideUnitSphere * wanderRadius) + transform.position;

[molten sequoia]

Yea. You also probably want to do something about the fact that once your AI is on a corner, only a relatively small slice of directions will point within the room.

[winged cloak]

I have no idea how to fix that :3

[alpine glacier]

Hi, I'm new here. I've got a problem for my edu game. I need to teach children to stay in column, when leaving a building after a fire alarm started. The player, last child of the column , must stay near the npc child before him, let's say no more than two meters behind. The npc child is following a pre-calculated path (as other npc children in column are doing ). Please, can someone help me? I think I should use some sort of raycasting but I don't grasp the matter very well

I forgot to say that the escape path is not straightforward, it has turns and stairs, like any school

[jovial creek]

Use Ontriggerexit

[uneven cave]

hi, i m using navmeshAgents as kind of a zombies, but when they get shoot ( they also get a knockback) , they get bugged for some reason instead of continuing finding the player. Is this normal and i have to change the mechanic or i need to add some sort of function to refresh the agent path?

[alpine glacier]

This could be useful if it could check that no one is inside it, that all the NPCs exited the trigger area

[nocturne bison]

if(Vector3.Distance(npc, playerChild) > maximumDistance)

i dont know what you exactly want to do when the child is too far away; do you want to force them to teleport to the npc, or prompt them to move faster?

[muted viper]

hi, i would just like to say, that this is the last day to get my AI asset for a cheap price, tomorrow (or in 2 days) the price is going to increase
link to asset: https://assetstore.unity.com/packages/tools/ai/alek-ai-system-213920#description

[wary ledge]

For some reason, my Navmesh agents, even though they have room, AND the Navmesh states they can walk there, will not go to the second floor of my level...

Any idea as to why thsi might be happening?

[wary ledge]

Nvm I figured it out and I dont know why this is doing this...

[alpine glacier]

Thanks for your suggestion, I want the player (a real child simulating a fire alarm in its school) not to lose contact at least with one of the children in its class while escaping, the latter being represented by npcs leaving the building in an approximate column, or if it happens , it should last for a very short time, let's say a couple of seconds. The npc in sight within a maximum distance of two meters could be the last one of the column or any other one inside the column.
I was wondering if keeping an account with an integer of the npcs enter/exit in a trigger centered on player and checking if not equal zero for a few seconds in a row could work, but it seems to me being a little complicated about its proper implementation, when it comes to check the time of trigger emptyness

[potent harness]

Is there currently any built in way of baking nav mesh during runtime?

[potent harness]

I figured it out using navmeshSurfaces

[ancient solstice]

anyone here know a simple way to make a goalkeeper ai?

[jaunty raft]

have it match the position of the ball in the plane of the goal's frame, add some latency and a maximum speed it can use to adjust its position so it doesn't block all shots

[ancient solstice]

ok sounds simple enough xd

thank you

[alpine glacier]

Gas anyone the Code from Game of live

[verbal grove]

Uh i think this is correct channel. So i need a pathfinding in my game. So thr problem every tutorial in unity 2d for pathfinding is grid-based pathfinding. But i want the AI to avoid some GameObjects. I find a thing that called "Nav Mesh Obstacle" i think that what i need, but looks like its for 3D, so how do i make it in 2D?

[verbal grove]

nvm look like a found a solution

[acoustic gazelle]

Would anyone be interested in helping me out with my Goal Oriented Action Planning (GOAP) setup. It currently works perfectly fine with the priorities setup. GetCost functions are also setup, but I currently have no way of chaining these actions and goals together to complete the original goal, and I am not sure how this setup is done best :-)

[acoustic gazelle]

Just a bump on this :-)

[timid cedar]

I made goals into components that can be attached just like actions.

actions have prerequisites. so if gameobject has enough of the right actions they can work backward through the tree of goals and figure out the course of action.

I'm using a modified version of GOAP from https://github.com/sploreg/goap

[grand quartz]

I am trying to make units move in cohesive formations for an rts project (Like total war games). The issue I am running into is having "soldiers" find an efficient position to set their destination to for the most efficient collective movement.

https://paste.ofcode.org/qH25jCHSJiYRhVbVP69xaU

This works fine at generating points, but the problem is getting individual subunits soldiers) to pick the optimal position to head to. Currently they just go down the list, the first subunit goes to the first position, the second to the second, etc.

The problem of course is that when you change the formations rotation or dimensions, the organization of the units messes up. Is there an algorithm or method to calculate the optimum unit placement?

[grand quartz]

Update, I found a solution to this problem, implementing the Hungarian Algorithm: https://kandi.openweaver.com/csharp/antifriz/hungarian-algorithm-n3

[vocal nest]

Hello everyone. I have a question regarding NPC with Normcore, can someone help me? does anyone know normcore 😅

[real sonnet]

They have their own discord and forums. I would try there first

[covert hazel]

Hey, what would be the best way to make realistic animals in Unity? Should I make behavioural scripts - which might take wayyyyy too long because there are a ton of animals - or should I use AI - which might be too resource intensive, and might not even work?

[wary ledge]

Depends on what you mean by Realistic Animals? What are you looking for? Its a very broad question.

A FSM realistically should cover most animals.

[covert hazel]

We have an insane amount of different animals, but I think behaviour scripts will be easier

[winged cloak]

Hello all. My AI, which uses the navmesh, seems to be bouncing off corners if he gets too close which sends him sliding and flying around, basically rendering him useless after that point

Any idea whats causing it?

Doesn't seem to happen to my other AI zombies

[stoic tulip]

I want my enemies to move like NPC in a predetermined path and when the player comes near they all should be alerted and hunt down the player like spy games
is there any tutorial for that type of enemy ai?

[real sonnet]

yes, look up something like unity finite state machine

you will learn how your AI can have a patrol state, following player state, attack state, and so on

[ionic pond]

Is there a way to drive a NavMeshAgent with Root Motion animator? Thanks in advance 😄

[stoic tulip]

Could u pls send some online resource links or yt tuts

[stable saddle]

@stoic tulip https://www.youtube.com/watch?v=UjkSFoLxesw

[stoic tulip]

Thanks will chk

[jaunty raft]

No

[autumn dock]

Hello, does unity have any tools for AI like unreal engine has, or do I write custom code for behaviour trees and AI using scripts?

[jaunty raft]

there are plenty of assets for behaviour trees and similar things (with visual tooling), unity itself has NavMesh and ML agents

[onyx echo]

how do I learn about AI and how to make good and smart AI for a game?

[jaunty raft]

plenty of books have been written about it, starting with these, any amazon search will turn up loads of others http://www.aiwisdom.com/

[onyx echo]

man i hate programming books

[jaunty raft]

alternatively you can wait for a youtuber to read the books and make a video that teaches everything in them in 1h

[real sonnet]

Just to be clear, those are not programming books. They are articles from professionals in the industry. They share where they struggled. Very valuable. Hard to find a better source.

Same for http://www.gameaipro.com/

[jaunty raft]

there is some code in them though (which i find helpful)

[rotund dragon]

the zombies are trying to reach the player through the open doors, but for some reason they are stuck. i disabled the walls to make it clearer. does anyone know why this happen?

[floral sleet]

Your navmesh looks very small at the doors. Your zombies are too fat to get through.

[crystal karma]

Try to write down what you want your AI to do instead of how you want to implement it into the game. Make flowcharts (Neutral state, AI walks around -> Combat state, AI seeks targets in a circle around itself)

Play games and try to manipulate their AI to understand what they did

[upper canyon]

Could someone advise me... what step to take to sync the root animation and the ai navmesh agent?

[hardy grail]

Hello guys, looking for help, mainly by pointing me into right direction, not really for full solution. I am making Top-Down ARPG and I have problems achieving good solution for player & enemies movement. My best reference of what I want to achieve would be diablo 3, so:

• Click to move (pathing, not just direction)
• AI Pathing for enemies
• Enemies shouldnt push eachother (can stay behind other if cannot reach target well)
• Enemies shouldnt push player at all
• Player shouldnt be able to move through enemies
  I am trying to achieve it with built in Nav Mesh Agents, but my results are far from perfect. I do not mean it is not good solution, there might be some tweaks I need to do (navmeshobstacle + carve when enemy stationary?) But so far I couldn't achieve "good feeling of movement for player & enemies". And my question here is: are there some good materials (books, youtube, courses) that teach how to handle expected behaviour? Did anyone maybe resolved it well and might share some tips? Thanks in advance!

[wary ledge]

I know I could build a FSM from scratch, however, does anyone have any good already made plugins/git repos?

I just stumbled on HFSM that seems somewhat decent, but yeah.

[mental steppe]

What are you looking for? An editor based workflow, scripting only or majority, Scriptable objects?

[flat shell]

Hey!
So I am trying to make a car simulator and I am currently working on a 1 file road. My AI move by using NavMesh and a waypoint system. I also made a detector that can detect the car I'm driving. However, I started coding this summer and don't know how to make the AI drive to the side and stop when detecting my car. Thankful for all suggestions and tips!

[wary ledge]

At the end of the day anything, but preferably something with less coding experience can use to make AI.

I don't mind doing the scripting/coding heavy lifting

[mental steppe]

I have a library on my GitHub linked, however it's unfinished at the moment and mostly undocumented as I've been fighting with Unity for 3 months to introduce custom update loops, otherwise I do know of a few decent tutorials online which have some decent systems, Jason Weimann covers them pretty well

[bronze field]

does anyone know why its still running into the wall

[fringe eagle]

I'm not into AI but I think using Rays is kinda better way for the AI to detect obstacles.

[bronze field]

idk im not too good at scripting

[fringe eagle]

It's fine, if you get started by now you'll get better. It's not late. It's my six day and these been going fine.

[bronze field]

do you think you could direct me to a like a thread or somewhere to get started

[fringe eagle]

First, learn basic coding from YouTube! Search:
Unity C# basics!

Or if you want some links then I'll give you a list of playlists on YouTube.

[bronze field]

ok ill serch some up

[fringe eagle]

Yeah.

[bronze field]

ive already finished the unity junior programer pathway should i just watch youtube now?

[fringe eagle]

Aha, I've also finished Junior but didn't get to the next lesson.

First, plan what are you making!

[bronze field]

my game?

[fringe eagle]

2D or 3D? What's the genre/category of your game?

[bronze field]

3d

its a player vs ai tank battle game

[fringe eagle]

So, it's action. Does the player hold any guns or something?

[bronze field]

the tank can shoot missles

[fringe eagle]

Oh, your both tanks!

[bronze field]

yes

[fringe eagle]

So, the tank just drives left, right, forward, backward. And also shoots the ball! I think it's really simple!

[bronze field]

yep

[fringe eagle]

Going with that, you need Car Control video! Plus with Projectile, which shoots the ball of the tank barrel.

[bronze field]

ok

[fringe eagle]

Tank Controls.

https://youtu.be/Ho6eR5-mfyA

[bronze field]

cool

[fringe eagle]

Shooting ball(bullets).

https://youtu.be/u0yksFw9PSs

There are more of them on YouTube/Internet if you didn't like these two!

[alpine glacier]

That seems way too hard for a beginner

Do something simpler

[bronze field]

well i was going to use the built in ai system

[alpine glacier]

Tank controls aren’t easy, AI is even harder

Doesn’t matter, still very hard

Make some cube game

[alpine glacier]

whats so difficult about tank controls

try making some good tank controls and youll see lol

it just moves forward and has to apply a bit of rotation

good controls

seriously what else do we need

oh u mean the pathfinding?

alr then

[alpine glacier]

wheel colliders

i dont think that falls under controls

you need to control wheel colliders

the model would be simply animating

[forest phoenix]

how do i make a monster that roams around the map and chases a player when in sight and a jumpscare when killed with animations?

[lunar plover]

should i use astar?

[floral sleet]

For what exactly? Unity has a Navmesh system and uses A* to calculate shortest paths.

[floral sleet]

"How" is a big question. There are a lot of things to do and we can't cover them all off here. Best thing to do is start with something simple, make a character around the screen, then when you feel ready, you can move on to A.I.

There's a great Beginners A.I course on Udemy by Penny De Byl, but you should get some C# skills under your belt first.

[lunar plover]

for monsters to pathfind u and attack

[floral sleet]

Yeah, then just use navmesh.