archived-code-general

[leaden ice]

I don't see any entities related code here

but #1062393052863414313 is the best place to get help with entities stuff

[outer juniper]

obviously it isnt there yet. Because dont know how exactly to work with it. No guides

[void basalt]

You don't need 3rd party tutorials. If you understand why ECS is performant in the first place, and what it's doing with the memory, it's very easy to dive into.

both of which the unity docs show very clearly.

[lean sail]

by not storing it on the device at all

Maybe then using the android keystore, although i dont know much about it

I think the only other option would be hiding the key, or writing it to a place where your application only has read permissions

I see something about internal storage, where users cant just access the file from your phone. but yea someone could just open it up in other ways

I mean regardless of how u store it, if this information is important enough, someone would break apart your app and find how its stored no matter what you do

if its just local game data, with no online highscores or purchase system then i wouldnt really worry about this

Yea i wouldnt waste time on this if its not real money or online at all

most wouldnt even know how to edit their files in the first place, even if they were handed the encryption key. Anyone who wants to edit it and is dedicated enough to even find the key in the first place to edit data for a local game is desparate enough id probably help them edit their file

im unsure what you mean tbh

you would be encrypting when saving.. if that answers the question. I really dont know what manually would even involve here

[tulip fjord]

hey, ```` barrel.transform.RotateAround(barrel.transform.position,barrel.transform.right,Time.deltaTime*rotationSpedRad);

transform.rotate is also translating the object to much

i guess i have to set the transform.position afterward, or add a joint. but i really dont get it. i thought rotateAround should fix this, but its not

[spiral dagger]

I have a question, can we invoke an event from another class? suppose an event is written in ClassA and we are trying to invoke it in ClassB, is that possible?

[tulip fjord]

why not?

[spiral dagger]

Because I am getting an error
The event 'ScriptB.UpdateScoreUIEvent' can only appear on the left hand side of += or -= (except when used from within the type 'ScriptB')

using System;
using UnityEngine;

public class ScriptB : MonoBehaviour
{
    public static event Action UpdateScoreUIEvent;

    private void OnEnable() {
        UpdateScoreUIEvent += UpdateScoreUI;
    }

    private void OnDisable() {
        UpdateScoreUIEvent -= UpdateScoreUI;
    }

    private void UpdateScoreUI() {
        print("Updated Score UI");
    }

}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ScriptA : MonoBehaviour
{

    private void Start() {
        Invoke("InvokeEvent", 3);
    }

    private void InvokeEvent() { 
        ScriptB.UpdateScoreUIEvent?.Invoke();
    }

}

[royal pulsar]

I've made a finite state machine via interfaces. I have a StateController monobehaviour and two IStates: RoamState and ChaseState. The problem is the states have a lot of logic and require data from other scripts to work. As they are just IStates and not monobehaviours they cannot reference the needed scripts in Awake() so the references have to be acquired in StateController and then passed to the states as a parameter in the OnEnter() and UpdateState() functions. At this point there are lots of parameters being passed in and it feels quite messy. Is there perhaps a better approach that circumvents this issue?

[tulip fjord]

maybe you can use a gameManager that stores the data, rather than passing it in?

[tulip fjord]

you cannot reference them, but you can get them in awake() with getComponent and/or object.find.

[tulip fjord]

sooner or later people run in to this problem and they use dictionaries and a gameManager to avoid the issues

@royal pulsar you can stores your dictionaries inside a list

@royal pulsar https://learn.unity.com/tutorial/lists-and-dictionaries

[tulip fjord]

have you tried to call a method of scriptB that invokes it? if you cant invoke directly

[spice cave]

Can someone help me with this? #💻┃code-beginner message

[prime sinew]

Please don't crosspost

And your question doesn't seem code related. Ask in #💻┃unity-talk

[spice cave]

ok sry

[spiral dagger]

Yes I can do that but I just wanted to know in general whether it is possible invoke an event from another class or not

[digital coyote]

I a trying to make my Player able to lean left and right (like in Rainbow 6 siege as an example) but I can figure out how. Can some please help me.

[frosty pawn]

Will asset be included to build if it was linked in field like below?

#if UNITY_EDITOR
public GameObject Prefab;
#endif

[trim schooner]

No

[quartz folio]

It's a bad idea to exclude serialised data using preprocessor ifs

The engine dislikes you doing it and it can cause random warnings to be present in your project, along with miscellaneous things going wrong

[frosty pawn]

what is the preferred way then?

[quartz folio]

Don't serialize the field in a runtime object if it's intended for the editor only

[frosty pawn]

How then I access to this asset in editor?

[quartz folio]

Asset database is one option

[frosty pawn]

Ok, what if I want it to development build but not to production?

[quartz folio]

Pre build scripts that swap assets in/out is usually my approach

[true bramble]

our naming convention for commits is beyond professional.

[languid hound]

Is there any way to add / remove triangles to meshes at runtime? What about bones too? If so is there anywhere I can read up on this

Wanted to make a snake that changes dynamically in length but connected capsules just ain't gonna do it lol

[warm stratus]

you can use animations

[steady moat]

What you are describing is SkinnedMesh.

[languid hound]

I see. Is there a way I can add objects to deform the mesh though?

Like not just the bones

[steady moat]

Sure

I never done it, however that would be strange if it was not possible.

At the end, you could implement your own API if needed.

[warm stratus]

is there a way to add outlines to a ui sprite but not that?

[heady iris]

what are you thinking of here?

just extra transforms that deform the mesh?

[languid hound]

Yeyeye

[heady iris]

when you say "objects to deform the mesh", I think of actual softbody physics

ok, that's simpler

[steady moat]

He is doing a snake.

[heady iris]

I have also not done this, but fundamentally, you just need to make sure that the mesh has vertex weights that correspond to these new "bones"

that's the part I'm not sure about

[languid hound]

That's fair enough I'll look about on the docs. Thank you for the advice

[wide dock]

Loading resources is about to drive me crazy.
LoadAll<> didn't work so now I'm specyfying where exactly the asset is so that it can load it and yet it fails once again.
Does anyone have any idea why does this happen (and how to fix this)?

[sacred vault]

I need to refer a custom file on my script

[leaden ice]

Show the inspector for that so?

[wide dock]

You mean this?

[knotty sun]

Can you screenshot your resources folder in File Explorer

[wide dock]

Idk if that's what you meant but here you are

[knotty sun]

do you have the same problem loading from Scriptable Objects or Prefabs?

[wide dock]

No, there haven't been any problems with loading from Scriptable Objects so far if I remember correctly

The issue is only with loading an "instance" from Scriptable Singletons

The thing is, loading from Scriptable Objects only takes place if loading from Scriptable Singletons ends up successfully, so I can't really tell if there wouldn't be any problems with loading them separately

Worst case scenario I'll just place a "Scriptable Singleton Holder" GameObject into the scene and reference my libraries there, but I'd preferably like to just Load them from the files as I mostly need to do that while not in playtest mode.

[knotty sun]

        AttackLibrary_SS al = Resources.Load<AttackLibrary_SS>("Scriptable Singletons/AttackLibrary");

works for me

[wide dock]

Welp, I've switched to

public class AttackLibrary_SS : ScriptableSingleton<AttackLibrary_SS>
``` and deleted my `instance` definition to let Unity handle this
So far it works, we'll see how it goes.

[wide dock]

Idk what's wrong with Resources.Load, sometimes it works, sometimes it doesn't.
It also worked for me for a while, then decided to stop

Also, idk if it means anything, but I've been calling the instance from within my AssetPostProcessor

[valid solar]

quick question, if i had a variable field which accepts a Class, any script that inherits from said class should be accepted into that field right?

i cant figure out how it works, and i probably have it wrong, but thats what was logical to my brain

Currently have a script called AltarBuffEffect, and a script called HealthBuff which inherits from AltarBuffEffect, but I cant drag it into a field of type AltarBuffEffect

[craggy veldt]

simply bcos SCriptableSingleton is not a physical asset... I mean, it is if you defined the FilePath

and it's Editor-only

and you don't need to loadResources at all

MyScriptableSingleton.instance is all you need

[wide dock]

I was using ScriptableObject as a Singleton, so it was a physical asset.
It's just now that I've switched to an actual ScriptableSingleton which is indeed Editor-only.

[golden flume]

Hello, if i have an OnTriggerStay2D
that call a function that turn a boolean true
and start coroutine

while boolean is true playertakedamage
will i call the coroutine multiple time?

[valid solar]

if OnTriggerStay2D invokes the coroutine, yes.

[golden flume]

oh i see

[valid solar]

If you enable it through OnTriggerEnter, and disable the coroutine itself when the bool is set to false, you wont have multiple instances of the coroutine, and it wont continue unless the bool is true

[golden flume]

Ok pretty simple, thx !

[valid solar]

or rather, no way other than attaching the script to a game object, is there any way i can do it without creating a prefab for it?

[leaden ice]

why does it need to be encrypted exactly?

The easiest thing to do here is to just include the json file in the assets as a TextAsset. It will automatically be compiled into the main game binary blob

this is a plus in my opinion as a gamer but

¯_(ツ)_/¯

I know

I also mean that

it does get compiled into the binary blob

unless you very specifically place it into a StreamingAssets folder

exactly, so why do you care?

yes

I'm saying:
It is going to be compiled into the game data packed binary so it isn't going to be plain text anyway. But even if it was I wouldn't worry about it.

As a game developer I don't care if users cheat at solitaire.

it only hurts thmeselves

[valid solar]

this pretty much

[leaden ice]

or they have fun doing it

[valid solar]

if they want to cheat they'll cheat

[leaden ice]

either way - the user is having fun why would that upset me

[plush sparrow]

getting this error when trying to add a package from github

  Could not clone [https://github.com/itisnajim/SocketIOUnity.git]. Make sure [HEAD] is a valid branch name, tag or full commit hash on the remote registry. [NotFound].
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()```

[leaden ice]

Exactly - you only hurt yourself

[leaden ice]

can you share exactly which URL you used?

[plush sparrow]

yes

https://github.com/itisnajim/SocketIOUnity.git

it worked for another guy who sent me this link

not wokring for me

[leaden ice]

that should work

https://github.com/itisnajim/SocketIOUnity#installation

as per^

[plush sparrow]

yeah it says to add the link in the package managaer

but the package isnt getting imported

[leaden ice]

well yeah you;re getting an error

[plush sparrow]

yeah anyone knows how to fix it?

i read a thread about editing the manifest file , i will do that now. if theres any other way let me know

ok i tried some other packages as well

wont import any package from url

[rigid island]

hey, which option did you select

[plush sparrow]

add package from url

[leaden ice]

something might be weird with your git installation or configuration

[plush sparrow]

i think issue is because of git in my system

yes

i am reinstalling git

[leaden ice]

also check for .gitconfig in your home directory

you might have some weird stuff in there

[plush sparrow]

home directory of?

[leaden ice]

your computer

like - your user folder

/home/Username on mac or C:/Users/Username on windows I think?

[plush sparrow]

    helper = manager-core
[filter "lfs"]
    clean = git-lfs clean -- %f
    smudge = git-lfs smudge -- %f
    process = git-lfs filter-process
    required = true
[user]
    name = *******
    email = *******
    name = *******

thats all there is in the .gitconfig

[leaden ice]

hmm that should all be fine I think

[exotic burrow]

Hi, I'm currently using the A* pathfinding algorithm for my zombie ai. However, I'm facing an issue where the pathfinder does not recognize tilemap collider with a composite collider as a collider. As a result, the zombie clips into the tilemap. Is there any solution or fix for this problem?

[rigid island]

which a* pathing are you talking about?

[exotic burrow]

Im using Dijkstra’s Algorithm

[mossy shard]

A* is another algorithm from Dijkstra

[exotic burrow]

im not pretty sure

[mossy shard]

different from*

[exotic burrow]

i used this

https://www.youtube.com/playlist?list=PLFt_AvWsXl0cq5Umv3pMC9SPnKjfp9eGW

[mossy shard]

ye then you used A*, not dij, a star is like a remade version of dij

[mossy shard]

well can you provide the code? or are you 100% sure you followed the tutorial

[exotic burrow]

oh

nvm i fixed it

[heady iris]

well, it sounds like you need to examine how you decide what areas are and aren't walkable

[mossy shard]

K gfu

[exotic burrow]

thanks

[gaunt blade]

Hey so I have a really weird issue. There's no errors being thrown, so it's got to be a bug somewhere with the logic of the code. Thing is it was working previously and now suddenly it doesn't anymore.

https://gdl.space/qefefuculu.cs

  triangle.getCircumcircle().render(.05f);```

The issue is somewhere along this line of logic

The triangle.render() works absolutely fine, yet for some reason the render function for the circle objects do not work, despite the fact that they both use the same underlying render function within the Line objects used to represent edges.

You can see that all the triangles here are rendering despite the fact that the circles called immediately after them, are not.

[heady iris]

have you confirmed that GetCircumcircle works correctly

[gaunt blade]

circumcircle = new Circle(this.getCircumcenter(), Vector2.Distance(this.getCircumcenter(), this.getVertices()[0])); This is the line that creates the circumcircle, it's in the Triangle class in the link I posted. It doesn't throw any errors, and I know that the Circle class does work because the triangle generation is based on those circles.

[heady iris]

sure, but that doesn't mean that circles are rendering correctly, or that the circumcircle is being generated correctly

verify both of these things

render a circle by itself, and do something to prove to yourself that the circumcircle contains valid points

[gaunt blade]

I'm unsure what you mean by "generated correctly". The circumcircles are being generated correctly because if they weren't, the triangles would not be getting generated correctly.

The generation of the triangles is based on the circles of previous triangles

This is part of a delaunay triangulation algorithm.

[heady iris]

well, you're currently in a situation where the circles aren't working

so you should rule out as many issues as possible

[gaunt blade]

The rendering isn't working

[heady iris]

i don't know how the rest of your code works, so I don't have any information beyond what that file contains

[gaunt blade]

The circle class works fine

That file contains all the classes

[heady iris]

triangulator.getTriangles(); is where the triangles come from, presumably

[rigid island]

what was the fix? sorry just got back

[steady moat]

Definitely does not look that way, as you are not able to render it ?

[heady iris]

you need to rule out problems.

start ruling out problems.

[gaunt blade]

It is not, that returns a list of generated triangles. The circles are created within the Triangle class, which I included in the paste.

[gaunt blade]

I am not.

[heady iris]

yes, and so i see no reason for "triangles work" to be proof of "circles work"

[steady moat]

Then try to render a single, simple circle.

[heady iris]

you can spend all day trying to convince me that X isn't the problem, but it'd be much more useful to just prove that X isn't the problem...

[gaunt blade]

I did. It doesn't work.

[steady moat]

Oh, so we now know that the render is most likely the issue.

[gaunt blade]

As stated, the issue is not with the delaunaryTriangulation class.

[gaunt blade]

That is what I said, yes.

[heady iris]

by simply defining a circle yourself, rather than generating one from a triangle's circumcircle?

[gaunt blade]

Yes. I used the Circle class directly.

That isn't relevant because of how the classes are designed, but you guys haven't looked at the classes because that code paste is long and you responded immediately.

If you could actually take a look at the logic

That'd be great

[heady iris]

this indicated you were having a problem with rendering the triangles' circumcircles in particular

you should always simplify as much as possible

[gaunt blade]

Cause I already stated the issue is with the rendering

[heady iris]

i read through the code briefly. i did not carefully examine the logic.

[steady moat]

We looked, however, must of the time there is no way that someone can fix bug just by looking code.

[gaunt blade]

Oops

Highlighted the wrong one

[steady moat]

We are trying to eliminate issues.

[heady iris]

suppose this somehow produced a bogus circle

again, simplify as much as possible

just try to draw a circle. nothing else.

no intermediates, no extra work.

[heady iris]

i did, indeed, see that this was how the circumcircle was generated

[steady moat]

The issue could potentially be from the: setSteps function.

[heady iris]

oh

you set radius and center after calling setSteps

the circles have a radius and center of zero

[gaunt blade]

Yes

[exotic burrow]

the same problem returns

[gaunt blade]

That might be it actually

[rigid island]

are you using a custom solution or an asset?

[exotic burrow]

a custom solution

[gaunt blade]

that was definitely the issue. I knew it was some minor logic error somewhere.

Thank you.

[heady iris]

this was not the case. always simplify your problems as much as possible to prevent this kind of thing from happening!

[exotic burrow]

the first thing i do is generate a grid

and for each node*check if it is walkable or not

but with a composite collider

the check is always true

        for (int i = 0; i < sizeX; i++)
        {
            for (int j = 0; j < sizeY; j++)
            {
                // ...

                var walkable = !Physics2D.OverlapCircle(nodeCenter, nodeRadius - .1F, obstacleLayer);

                // ....
            }
        }

[gaunt blade]

It's weird though that it wouldn't spit out an error saying those variables weren't initialized.

[heady iris]

no, since they're fields

fields get a default initialization

only local variables can be uninitialized

[gaunt blade]

Interesting.

[heady iris]

I think it's equivalent to writing T fieldName = default;

[gaunt blade]

Well, thanks. One step closer to getting my triangulation algorithm working.

I hate algorithms. Hopefully I don't have to work on too many more after this.

[rigid island]

ohh you're using colliders :\

i usually just use the obstacle tilemap to tell algo where obstacles are

or exclude them from the algo entirely

[rigid pine]

Hey guys, need help finding the positions of 4 corners of the rectangle drawn in red, i am trying to confine the view to the collider visible, currently i am using the far clip planes corners to confine the space but it is not giving me accurate results, if i can find the the points intersecting the cameras viewport extents and ground , i think i could achieve the result i want

[civic carbon]

are all uniquely decodable codes prefix codes?

[heady iris]

nope

consider a language with two symbols, a and b, encoded as 0 and 01

0 is a prefix of 01

but it's still uniquely decodable as long as we can look ahead at least one character

I think you do have to have a prefix code to be able to uniquely decode without lookahead.

[steady moat]

All prefix code are uniquely decodable, but not all uniquely decodable code are prefix code.

Note: Prefix code are instantaneously decodable.

[gray mural]

I have this class in the script with another class withing the same namespace. Script called TypingField and first class called TypingField too. This TypingFieldHelper's Update method is not being called.

public class TypingFieldHelper : MonoBehaviour
{
    private void Update()
    {
        print("nice");
    }
}

[swift aspen]

you can only have one monobehaviour per file

[gray mural]

no other way?

[swift aspen]

no, you need a second file for it

[gray mural]

ok, thanks

[gray mural]

Is it possible to get all methods that execute in the certain period of time?

[tropic quartz]

I've made a method return a bool just so that I can check for it's completion.
And I think I used some weird lambda thing for coroutines in one spaghetti filled game.

But I dunno if Unity keeps track of all methods that execute somewhere.
Oh, maybe you could use event system for that sort of thing, dunno.

[gray mural]

is it a question?

[mental rover]

look into the profile analyzer

[sage latch]

I have this base class that saves data to a save manager when the scene is unloaded. I have to access other components during this process, but they are destroyed before the method runs, resulting in a missing reference exception. No luck with execution order or SceneManager.sceneUnloaded :/

Here's the derived class https://hatebin.com/ppqmvpauws

Is there a solution to this?

[radiant maple]

I need help, whenever I start the game and click new game, it deletes my playerprefs, but when I click the back arrow to go back to the title screen and click new game, it doesn't delete my player prefs, someone help. https://pastebin.com/mCDR2bb6

[sage latch]

You might need to call PlayerPrefs.Save after you modify it

[radiant maple]

Will try that

[sage latch]

also dont crosspost

[radiant maple]

Ok, it didnt work but here is vid of issue

[sage latch]

take it in #💻┃code-beginner

[tropic quartz]

Also I noticed that your first function is Update, so you are adding those listeners on every frame, dunno if that could mess up something but ye

[radiant maple]

I changed it to OnEnable

[vagrant blade]

@radiant maple Stay in #💻┃code-beginner please.

[radiant maple]

ok

[sleek hedge]

is it worth it to pool objects that i use to send damage info?

[sage latch]

Just normal C# objects with data on them?

[sleek hedge]

yeah

[leaden ice]

what does "send damage info" mean and how are these objects used?

And what is their lifecycle

(also are they structs? classes?)

[sleek hedge]

anytime anything that takes damage aclass with info like the sender, reciever, damage, location... etc and

and they have a short lifetime

[sage latch]

A struct should be fine

[sleek hedge]

should you have mutable data in a struct?

[leaden ice]

why not

[sleek hedge]

idk just thought yo werent supposed to

[leaden ice]

Why would they be mutable if you shouldn't mutate them

[sage latch]

If the struct is very big and you're passing it to functions often, a class might be better to avoid copying

[crisp flower]

Hiya, I did some codey things using AssetDatabase functions and then lo and behold you can't compile that to android.... Obviously. So, I've moved to using Resources.Load which works to load the right assets, however I have a line to get the path/filename of an asset and use that later to load things....

    path = AssetDatabase.GetAssetPath(asset);

Essentially I just want the filename of an asset I have exposed as a public variable in the editor. Any way to do this? Perhaps a script that when it's building just runs that AssetDatabase command and saves the output to a string in the component instead?

[leaden ice]

If you want immutable structs look into records

[leaden ice]

also based on your description of the data it doesn't sound like you need them to be mutable anyway

[sage latch]

or readonly structs 🙃

[sleek hedge]

i do agree however there is a field for the damage that i need to modify based on stuff

[leaden ice]

If you have exposed the asset as a reference in the inspector there is no need to use Resources.Load. You already have a reference to the asset.

just use it directly

[crisp flower]

It is for a localisation system and I have different folders for different languages.

So when I change language I want to load the same filename thing but in a different language folder

[leaden ice]

you will need to think of a different approach then, because this isn't going to work

Have you thought about using Unity's built in localization package?

[sage latch]

Why not put it in a Resources folder?

[crisp flower]

we are using the localisation package for audio/visual assets but not for subtitles

so it is in a resources folder, but I still want to be able to ie:

Resources.Load(subtitles\EN\file.txt
Resources.Load(subtitles\ES\file.txt

etc

[sage latch]

So why do you need to use assetdatabase instead of resources?

Oh wait I read the original question wrong

[crisp flower]

because, I need to GET the filename of the linked asset, in order to load the same named one in the resources folder.

I am using resources.load to get the assets, and this works, but I need to replace the AssetDatabase function which gives me the filename of the asset linked in the inspector

[sage latch]

Yeah, you probably need to chose a different approach

[neon junco]

Hey all so i am about to work on a game for Uni but trying to figure out how to do something that i can't seem to get my head wrapped around.

How would I go about making a fence prefab that during run time i can put into the scene to make a fence around a garden but I would want to implement it to be a free form kind of making your own fence due to the garden being a custom garden.

My best thoughts around making this happen is putting in a pole and then instantiate the fence prefab from that pole and allow it to be stretched by modifying its transform scale but clamping the x & z values so it can't go to far. Then once its finished being placed it drops another pole and the process repeats.

[crisp flower]

is there a function that calls when you update a particular field in the inspector? Like when I drag in an asset it just writes a private string which is the filename of that asset

and then use that instead

[sage latch]

OnValidate

[crisp flower]

ooh

[sage latch]

Remember the private field has to be serialized in order to be "remembered"

[crisp flower]

that might work. Thank you

[leaden saffron]

Anyone know how I can get one end of my line renderer to stick to my player as it's moving and the other end to stick to the grapplePoint?

https://gdl.space/ficakumaku.cpp

it makes the line when i click it but it doesn't continue following the players movement

also if i switch to a different grapplePoint object it will make a line from my player to the last grapplePoint that i used, not the new one

[heady iris]

    private void DrawGrapple() {
        lr.enabled = grappler.enabled;
        if (lr.enabled) return;

this only updates the points if you AREN'T drawing the line

that seems backwards...

[wide terrace]

I can't believe I missed that earlier 🤦‍♂️

[leaden saffron]

thanks i missed the ! part before it lol

[soft shard]

Is there a faster way I can check if an array (or any other collection, im fine with changing it) contains a type than using .Exists? I have an array of a base class and a function like this - is using Exists the fastest option in this case? Looking online, .Contains was suggested, but id need the object and I only have the type so im not sure how I could use contains without Linq (which would be more expensive), I also looked at a HashSet<SomeBaseClass> but same issue, I dont think I can check the type through it - normally this isnt a problem, but profiling suggests the number of AI using this function contributes the most to alloc

SomeBaseClass[] arr;

public bool HasClass(Type someType)
        {
            return arr.Exists(x => x.GetType().Equals(someType));
        }

[misty blade]

Hello, I noticed that Physics2D.RacastAll does't hit colliders that have offset the collider component. So for exaple a BoxCollider2D with offset (0, 0) is being detected by RaycastAll just fine, but the same collider with offset (-6.1875, 0.34375) is not detected. Is there a way to get around this? Is it a bug or should it be like that?

[misty blade]

Maybe it should be reported to Unity staff? I digged in documentation and didn't found a word about such behaviour

[soft shard]

As long as the distance, direction and layermask (if your using one) is correct, the offset shouldnt affect if it gets detected or not, if your using a layermask, you could try removing it to test, or moving the transform closer to your raycast origin and direction, how are you checking that it is not getting hit? For example, are you logging the array it returns?

[sage latch]

Does the array contents change? If not caching is a quick fix

Dont crosspost and not a code question

#⚛️┃physics

[misty blade]

The raycast is damaging enemies so I can easily see when it hits. But to better understand the issue I also logged raycasts outcomes. (the blue ray hitted both player and enemy but not the collider that is between them. The green lines on the picture is the box collider 2D)

[eager yacht]

Are you unable to use generic types instead? Or do you have to use reflection for the types?

var contains = arr.OfType<Foo>().Any();
var contains = arr.OfType<Foo>().Count() > 0;
var contains = arr.Any(v => v is Foo);
var contains = arr.FirstOrDefault(v => v is Foo) != null;

[misty blade]

I will remove the layer mask to see how it works then, but since changing offset to (0, 0) works I don't think that the layer mask issue

[soft shard]

Hmm, ill try and see if I can do a generic approach like that and check the profiler again

[eager yacht]

Can even do a for/foreach and do a manual check as well instead of linq. Really whatever works lol

[misty blade]

I removed the layer mask and got same results. Seems like collider's offset is the only thing thats effecting raycast outcome

[static matrix]

 public void EnableColliders(GameObject Which, bool state)
    {
        var Cols = Which.GetComponentsInChildren<Collider>().ToList();
        if (Which.GetComponent<Collider>())
        {
            Cols.Add(Which.GetComponent<Collider>());
        }

        foreach (Collider c in Cols)
        {
            c.enabled = state;
        }
    }

rate this function/10
looking for tips

[eager yacht]

GetComponentsInChildren already gets the collider on the initial object

[static matrix]

good to know

[eager yacht]

It's very dumb

[sage latch]

You also dont need to convert it to a list (because you dont need the check)

[eager yacht]

^

[static matrix]

its the kind of thing which looks wierd but is actually very nice

alright cool

[eager yacht]

I think it's due to how it does recursion to where it isn't avoidable, but just a weird thing

[static matrix]

i mean
GetComponentsInChildrenAndSelf
is pretty clunky

[sage latch]

the parameter Which doesn't follow naming guidelines either

[eager yacht]

Yeah but at least you would know it includes self

[sage latch]

also it's kind of a weird name, but I guess it's fine

[static matrix]

if you are worried about that, the rest of my scripts would cause you to implode

:)

[sage latch]

what confuses me is that the second parameter is not CamelCase

[sage latch]

Can't you just click through them and vs fixes it for you?

You can do that in rider

[static matrix]

im in too deep
it'll mess my code up

....probably

[sage latch]

it should rename references usages too

what might screw you over is serialized fields

[static matrix]

oh god
I
I public everything
its a very very bad habit
ill stop ranting about my bad code practices

[sage latch]

oh god, that probably increases the size of your project and builds by quite a lot

maybe not project as it's already really big

[static matrix]

im so sorry

[sage latch]

🫠

[static matrix]

basically

[sage latch]

Love the random delegate declaration

[static matrix]

what where

[static matrix]

oh
I dont even use that 🤦

ill remove it

[sage latch]

Also this is crying for some separation

I see UI combined with gameplay

[static matrix]

where?

[sage latch]

And visual effects

[static matrix]

it just controls the bars, because the health is stored here

oh VisFatigue isn't a visual effect

its
uh
worse

[sage latch]

Vignette is though

[static matrix]

yes it is used to show damage

[sage latch]

Best coding practices would tell you to split these things up to minimize coupling

[static matrix]

vis fatigue is separate from actual fatigue, so it can look like fatigue is going up but apply the change after so that the player doesn't drop below fatigue and stop sprinting

[sage latch]

This is not even coupling, it's just a pot of stuff

[static matrix]

it could be worse
I could have all the player things in this script

movement, inventory

[sage latch]

That's actually smart

[static matrix]

🥰

yaaay

in my first big project, I lumped ALLL the player things into the same script

health, movement, damage, attacks

it was just one script

[sage latch]

Wait

What does your inspector look like

[static matrix]

uhhhhh

which parts

[sage latch]

oh god

[sage latch]

Meanwhile my projects xD

[static matrix]

yeah
instead I just have less scripts but make them thicc

[spring carbon]

You can use headers to better organize inspector

[static matrix]

its split up a little bit

[spring carbon]

https://docs.unity3d.com/ScriptReference/HeaderAttribute.html

[static matrix]

curlevel manager does footstep noises I believe

[sage latch]

How did it get to this point?

[static matrix]

yes it does
keeps track of them and plays them

this is just
how i tend to do things

[sage latch]

why do you have a manager on your player??

dont tell me its a singleton as well

[static matrix]

wdym

curlevelmanager is a misnomer, all it does it get told the next level's footstep noise when you go thrrough a level transition, and then play that as the player walks

I thought I would use it for more but I ended up not

[sage latch]

alright

[static matrix]

It was being used for footstep effects like splashing and stuff but the splashes were too laggy so its no longer used for that

[sage latch]

How do you handle the inventory between scenes?

[static matrix]

wdym

[sage latch]

keeping the data

[static matrix]

its attatched to the player and I dontdestroyonload the player

[sage latch]

Ah, so I'm guessing it's a singleton your UI then uses

[static matrix]

???
Its probably very bad that i do not know what you are talking about

[soft shard]

The generic approach seemed to have helped from what I can see on the profiler now, thanks for that btw

[sage latch]

How does your UI get access to the player's inventory?

[static matrix]

heres the script
please review and be apalled

[sage latch]

Wait, is your UI attached to the player?

[static matrix]

yes

it just keeps getting worse

[sage latch]

I dont know what to say

So the player carries a canvas on its back?

[static matrix]

yup

a few actually

[sage latch]

It's good to split up canvases at least

[static matrix]

one for settings, one for inventory, and one for statbars

[sage latch]

That's fine great, if you're hiding them the right way

[static matrix]

I am
the worst thing about all this is the game runs perfectly fine
which is why I haven't seen the need to mess with stuff

[sage latch]

If it works it works 😄

[static matrix]

yeah basically

I do use abstracts tho
which are nice

[sage latch]

Well, good luck on your spagetti dish disguised as a Unity project

I will proceed to sleep

[static matrix]

cool

[wheat chasm]

Hi, how do I stop a client by the server with the client's ID in netcode?

[warm stratus]

Hi, i have to store in a file json format that is encrypted, which file type should i use? .txt or .json? what s the best and why?

[vestal turret]

NetworkManager.DisconnectClient(clientId);

[heady iris]

if it is encrypted, then it will be a binary file. just use .sav or something

make up an extension

[warm stratus]

so .sav is the best?

[heady iris]

you can name it whatever you want

it's not going to be something that the user can meaningfully use

[wheat chasm]

@vestal turret Thank you, I will try it!

[warm stratus]

and where is the best place to store the key ? to encrypt?

[heady iris]

if you have to ask that question, then I don't think you should be relying on encryption to protect anything

if the key is stored on the user's device, then the user can trivially decrypt and encrypt data at will

[dapper flower]

    public class UnityEventAsset : ScriptableObject
    {
        protected readonly List<BaseUnityEventListener> Listeners = new();

        public void RegisterListener(BaseUnityEventListener listener)
        {
            if (!Listeners.Contains(listener)) 
                Listeners.Add(listener);
        }

        public void UnregisterListener(BaseUnityEventListener listener)
        {
            if (Listeners.Contains(listener)) 
                Listeners.Remove(listener);
        }
    }```
```cs
    public class UnityEventListener : BaseUnityEventListener
    {
        [Tooltip("Event raiser to listen to")]
        public UnityEventAsset UnityEventAsset;
        
        [Tooltip("Response to event raising")]
        public UnityEvent Response;

        private void OnEnable()
        {
            UnityEventAsset.UnregisterListener(this); // WORKAROUND
            UnityEventAsset.RegisterListener(this);
        }
        
        private void OnDisable() => UnityEventAsset.UnregisterListener(this);

        public void OnEventRaised() => Response.Invoke();

        private void OnValidate()
        {
            if (UnityEventAsset != null)
                UnityEventAsset.RegisterListener(this);
        }
    }```
I'm having a problem where when switching to PlayMode and Raising an event, it gives me a `MissingReferenceException: The object of type 'UnityEventListener' has been destroyed but you are still trying to access it.` when trying to access a listener in the list (they come as `null` after hitting play). The workaround is to, OnEnable, remove and add the listener. What's actually going on behind the scenes?

[civic berry]

im getting a weird error every time my player touches an enemy can anyone help please

ArgumentException: GetComponent requires that the requested component 'Player' derives from MonoBehaviour or Component or is an interface.
UnityEngine.Component.GetComponent[T] () (at <4746c126b0b54f3b834845974d1a9190>:0)
PlayerHp.OnCollisionEnter (UnityEngine.Collision collision) (at Assets/PlayerHp.cs:27)

[hollow hound]

Is multiple .Where() on List is less optimal than one .Where() with united cndidtion in terms of performance?

This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in C# or For Each in Visual Basic.
Is it mean that list condition will be gathered and executed only once?
Or multiple .Where() will stride multiple times through the list?

[heady iris]

i believe each one will run the previous enumerator until it finds a value it can use

i would expect this to be worse than just using one large condition, still

i guess you could measure this by doing something goofy, like 100 consecutive wheres

[warm stratus]

i wan t to make that a bit harder not impossible but you know

[true python]

Does anyone here have experience with Ink integration for unity? I'm trying to code a dialogue system and everything works fine except when after choosing a choice and it should jump back to the choices and show them again (everything works fine in the Inky editor), it doesn't show the choices when playing through the dialogue and nothing happens for "two steps", then the dialogue ends

[glossy basin]

Hello there, I assume this is sort of a newbie question, I have a parallel job where I am doing some calculations and right now I am refactoring my code to modify a struct value; The problem right now is that I have some conditionals on my job and in those I want to modify a value inside my struct at the current index, but for some reason the struct does not change at the specified index unless I call the function outside of those conditionals, what am I doing wrong?

 //back
            if (blockBack == 0)
            {
             //Does not work
                AssignData(index, blockPos, BackFace);
            }

            //front
            if (blockFront == 0)
            {
                 //Does not work
                AssignData(index, blockPos, FrontFace);
            }

//Does work outside of conditions
 AssignData(index, blockPos, BackFace);

  private void AssignData (int index, half3 blockPos, NativeArray<half3> face)
    {
        _VertexData[index] = new VertexData
        {
            Position = AddQuad(blockPos, face),
            index = index,
            //  Normal = _VertexData[index].Normal,
            //  Uv = velocityPosition.Uv,
            // Tangent = velocityPosition.Tangent
        };
    }

[hollow hound]

30 wheres on 1kk list is 10 times slower than one where with 30 conditions.

[modern creek]

It's not clear - likely an "obvious" issue with blockBack or blockFront not being what you expect them to be?

[crisp flower]

Hey, so can I use Resouces.Load in this situation?

Resources.Load("A\thisfile")
Resources.Load("B\thisfile")

where the filenames are the same but the path is different?

[modern creek]

(I'm assuming _VertextData is a private [] that you're not mistakenly re-initializing or overwriting elsewhere, too)

[modern creek]

yes but using / for the path delimiter

\t is tab

eg: A hisfile and B hisfile

[crisp flower]

thanks

[glossy basin]

I mean, the conditions do happen, I can debug them and they return true when there is a fron block or back block present, the issue I have is AssignData is not assigning a value at the specified index

It remains at 0 either at Position or Index

But when I take AssignData(index, blockPos, FrontFace); outside of the conditions, it does assign the value I expect

I have also placed a debug before doing _VertexData[index] = new VertexData and I do receive the input values

[echo plaza]

Hey there, I was wondering if anybody knows how I could use Text Mesh Pro with the Input System Rebinding sample. The only idea I have is to take the text from the regular text component and put it into a TextMeshPro UGUI component.

[leaden ice]

Text/TMP_Text are pretty much interchangeable in any way that would matter for that.

(other than just changing the type in the code and replacing the objects and references in any prefabs/scenes of course)

[echo plaza]

The reason I can't replace the text variables with TextMeshPro is something to do with this:

The new input system cannot yet feed text input into uGUI and TextMesh Pro input field components. This means that text input ATM is still picked up directly and internally from the Unity native runtime.

I have no clue what that means besides I can't change the text components.

[leaden ice]

where are you seeing that?

is the sample using UGUI, or is it using IMGUI?

[leaden ice]

also this is talking about input fields, not Text /TMP_Text

it's talking about where you "type" the new binding into

[echo plaza]

Here is where I found it: https://docs.unity3d.com/Packages/com.unity.inputsystem@1.6/manual/KnownLimitations.html

And here is the code snippet which I'd need to change to TMP but can't:

        public Text actionLabel
        {
            get => m_ActionLabel;
            set
            {
                m_ActionLabel = value;
                UpdateActionLabel();
            }
       }

[leaden ice]

Change Text to TMP_Text (and add the appropriate using TMPro; directive

change it everywhere you see Text to TMP_Text

and change all the objects in the scene to TextMeshPro-UI objects

none of this has anything to do with input fields (which is what that known limitation is talking about)

[echo plaza]

:|

[leaden ice]

yes you need to change that variable (m_actionLabel) to TMP_Text too

as I said: #archived-code-general message

[echo plaza]

Maybe this is what I'm missing:

[leaden ice]

yes

see how it says Text

you must change it to TMP_Text

[echo plaza]

It was at the very bottom of the page and I didn't notice it.

[leaden ice]

the error here was telling you the variable was the wrong type. That's your cue to go to the variable declaration

[echo plaza]

Well, that fixed the problem! Wonder why everything I found told me it couldn't be done, besides one vague comment on a video where the creator said it couldn't be done.

[leaden ice]

no idea. The explanation you gave made no sense because the sample is clearly already using UGUI, and the text you linked said it can't use UGUI.

[cobalt flint]

I'm trying to capture specifically a "rotational" input, with the example of Spin the input in a circle to simulate a fishing rod reel. Anyone got any ideas here? Or previous examples? I've been pondering this idea for a few days now. No idea where to even start.

[leaden ice]

capture rotational input from what device?

[cobalt flint]

Mobile

[leaden ice]

So you mean a touchscreen?

[cobalt flint]

Well yes, the input capture isn't as important, but the method I would handle capturing a continued rotation?

[leaden ice]

Are we talking about a virtual joystick, or are we talking about rotating your finger around the center of the screen, or what?

well it depends on the input device hence the question

[cobalt flint]

I think for simplicity, a virtual joystick as that is what it currently uses

[reef garnet]

Hi I have an eventManager that keeps throwing a NullReferenceException and I'm not sure why

Event Manager Here:

{
    // Bus Events
    public Action OnBusTakeDamage;
    public Action<float> BusTemperature;
    public Action<float> BusHealth;

    // Debris Events
    public Action OnDebrisDestroyed;
    public Action OnDebrisSpawned;

    // Hero Events
    public Action OnHeroShoot;
    public Action OnHeroDash;

    // Game Events
    public Action OnGameStart;
    public Action OnGameWon;
    public Action OnGameOver;
    public Action OnGamePaused;

    protected override void Awake()
    {
        base.Awake();
    }
}```

Inhereits from my Singleton Abstract Class
```// A static instance is similar to a singleton but does not destroy any new instances,
// Instead overwriting the current existing instance.
// Good for resetting states.
public abstract class StaticInstance<T> : MonoBehaviour where T : MonoBehaviour
{
    public static T Instance { get; private set; }
    protected virtual void Awake() => Instance = this as T;

    protected virtual void OnApplicationQuit()
    {
        Instance = null;
        Destroy(gameObject);
    }
}

// A Basic Singleton. Will destroy any new instances created.
public abstract class Singleton<T> : StaticInstance<T> where T : MonoBehaviour
{
    protected override void Awake()
    {
        if (Instance != null) 
        {
            Destroy(gameObject);
            return;
        }

        base.Awake();
    }
}```

NullReferenceException: Object reference not set to an instance of an object
GameManager.Start () (at Assets/_Scripts/Managers/GameManager.cs:32)

```private void Start() 
    {
        EventManager.Instance.OnGameStart.Invoke(); // THIS IS LINE 32
        
        SetValues();
        
        fallHeight = Vector3.Distance(startTrasform.position, endTransform.position);

        currentHeight = fallHeight;
    }```

[leaden ice]

then all you need really is to store the input vector from the previous frame. Every frame you can then calculate the signed angle difference between the two input vectors and get an angle amount that changed

[leaden ice]

you'd have to share your full error message and show us the line of code that it's referring to

[cobalt flint]

Got it, compare angle differences. Ty!

[leaden ice]

basically just using this:
https://docs.unity3d.com/ScriptReference/Vector2.SignedAngle.html
like cs float angleDiff = Vector2.SignedAngle(previousInputVector, currentInputVector);

and of course if you want to know the rate per second it'd be:

float angleDiff = Vector2.SignedAngle(previousInputVector, currentInputVector);
float rotationRate = angleDiff / Time.deltaTime; // in degrees per second

so you'd either accumulate these angle difference over time or look at the rate of change.. It depends what you're looking for

[cobalt flint]

I believe the rate of change is what I'm after, as that will correspond with a counter.

[reef garnet]

Fiexed it Error code at the bottom along with the method triggering it

[leaden ice]

right but it was not clear which file was GameManager.cs and which line 32 was

[cobalt gyro]

Can Coroutines be used in a static non-MonoBehaviour script

[leaden ice]

StartCoroutine can only be called on a MonoBehaviour instance. The place where the IEnumerator function actually lives can be anywhere

[cobalt gyro]

IEnumerators not Coroutines

[reef garnet]

Commented which one it is is that better?

[wide terrace]

If nothing is subscribed to an action, it will be null - so someAction.Invoke() will throw an NRE

[leaden ice]

yes. Either EventManager.Instance was null, or there were no listeners assigned to the event

[reef garnet]

oh ok Well that explains things

Thanks

[leaden ice]

you can do EventManager.Instance.OnGameStart?.Invoke(); to safely invoke it

assuming it was the no listeners thing

[reef garnet]

Not at the moment no. Thanks for the solution

@leaden ice @wide terrace Thanks that fixed it I totally forgot about checking for null

[hollow hound]

What is the best way to manage ui events like button onClicks?
Dragging files in unity events seems very tedious and unreliable.
With GetComponenting buttons from script of the same object it is impossible to subscribe for multiple butttons

[leaden ice]

you can add subscribers from code if you really want with AddListener

I prefer to assign the listeners in the editor whenever possible

[hollow hound]

By adding scripts to every button and doing GetComponent for button?

[leaden ice]

not sure what the GetComponent is needed for

[hollow hound]

I using it to get the button I want subscribe to like this:

  Button _button;

        void Awake()
        {
            _button = GetComponent<Button>();
        }

        void OnEnable()
        {
            _button.onClick.AddListener(StartGame);
        }

Is there is a better way?

[leaden ice]

there would be no point in doing that since you can just assign StartGame to the button from the inspector

but sure you could do that

[hollow hound]

Then what you meant by "you can add subscribers from code if you really want with AddListener"?
Dragging scripts into unity events seems unreliable and I wonder if it would be better to subscribe to events in code

[leaden ice]

there's nothing unreliable about using the inspector

the most common case for adding subscribers in code is when you're instantiating button prefabs and want to add a listener from the instantiating script to the button instances

[hollow hound]

So the best ptractice for managing ui events for static elements is configuring them through inspectpor like this?

[leaden ice]

I would say so, yes.

it keeps your code hierarchy-agnostic

which allows more code reuse

[hollow hound]

But it breaks if I simply rename my function

[leaden ice]

sure and the other way breaks if you simply rearrange your hierarchy

[hollow hound]

Hierarchy? I attached script to the button it subscribes to.
If I'm draging script from folder to event field, there is no functions to select.

[leaden ice]

Yes, the hierarchy

the arrangement of GameObjects and their components

if you, say, move the script to a different object, or move the Button component to a different object, it breaks

[hollow hound]

But I can Require the button component, right?

[leaden ice]

Sure

Which, again, locks you into a particular hiararchy configuration

if you're fine with that then go for it

[hollow hound]

Ok, thanks

[mighty plinth]

hey! i was wondering if someone could help me with a maths related coding problem?

im trying to spread out a hand of card gameobjects in unity, like in the pic, but cant seem to find much help online, and am unable to nudge chatgpt into providing a workable answer

maybe you could do some circle related magic? youd position a card on the circles edge depending on your hand size / its location in hand, and have its transform.up equal to the normal of the edge at that cards position, giving you both the rotational and y-positional effect in one swoop? as a non mathsy person ive got no idea where to even begin with this though

in case it helps at all the second pic is my current solution to positioning the cards on their x axis. thanks :)

[hollow hound]

Firstly, choose a point below the screen that will be your circle center. Then choose the radius of the circle.
You can find Y position of a card like this: Y = sqrt(radius^2 - X^2), where X is the position you are calculating on the screenshot.
After that you can find rotation of the card with Quaternion.LookRotation(circleCenter - transform.position)

[mighty plinth]

tyty ill give that a try now

[echo plaza]

Hey there again, I'm having a problem with the Input System rebinding where it only works in one scene and not in any others. I'm not sure what the problem could be, but it happens with the actual key rebinding since every type of rebinding script I used had this problem.

[mighty plinth]

sooo my first attempt isnt going super well lol

i might be able to fix that actually 1 sec

[hollow hound]

Seems like you should rotate cards vertically

[mighty plinth]

so now as i add more cards they move downwards and to the right lol (also the rotations gone)

quaternions arent my strong suit

[heady iris]

to get a "spread" like that, you want stack all of the cards on top of each other, then use transform.RotateAround to rotate them slightly around a far-away position

that'll get the arc shape

[fluid lily]

So question on Unity serialization and nested classes. I have a component with an instance of a class that has its own class as a variable. Only the top level instance of the class is showing in inspector. How would I have it so I can have it serialize another step down at will?

[nova moon]

Not sure I quite follow but I have done what I believe is something similar.. got code? Might be able to help with it if I know exactly what you're doing.

[opaque vault]

uhh. I dont know why my sprite is clipping through

/

ello?

[nova moon]

Hi

[fluid lily]

[Serializable]
public class IsAHasA {
public int value;
[SerializeField]
public IsAHasA next;
}

value is showing up, but not next

Also getting this in logs XD
Serialization depth limit 10 exceeded at 'IsAHasA.next'. There may be an object composition cycle in one or more of your serialized classes.

[nova moon]

Ah yea I've never done that and I can't imagine that's even possible... I'm assuming the depth limit is caused by the fact that each instance of IsAHasA contains another IsAHasA, creating a memory leak maybe?

[fluid lily]

If I make next an array I can get one more layer, but it is cutting it off pre-emptavly.

[fluid lily]

Not memory leak, just infinite creation as Unity auto generates variables.

I thought array would work(which it does once), as Unity doesn't auto generate values there

[nova moon]

What do you mean unity "auto generates variables"? infinite creation should be your big red flag that it's a big no no.

[limber agate]

Wrong channel

[fluid lily]

So in actualy C# programing a pattern like the above is common place, like with chained nodes, but there you have to assign a value to the class varaibles. Unity auto assigns values to public class variables. It doesn't do this with class array variables. Yes infinite recursion is bad, but a fault of Unity not of bad coding practices.

[wintry crescent]

Hi, this is how my FBX object looks in the editor. How can I create a reference field in which I can put the root object, instead of specifically to the mesh and only the mesh? I'd love to have the reference to the mesh and the materials in one go

[rigid island]

reference the mesh renderer

it has acess to all that

if you want the mesh itself you do need mesh filter

[wintry crescent]

yea but I need specifically the reference to the file, because I'm swapping the mesh and the materials on it, with a script.
And that script needs references to all that.

[wintry crescent]

I should be more precise: this isn't hierarchy window, this is the Project window. I need to reference the object in the project window. Not some mesh renderer that has this mesh and materials attached.

[rigid island]

maybe resource folder?

[wintry crescent]

No, I need to make a field in the inspector on a gameobject, where I can drag this root object

I'm asking what type the field should be - if I do a mesh field in my script, I can drag the mesh itself, not the root object that holds the mesh and the materials

[rigid island]

GameObject

[wintry crescent]

Thanks, I can assign it now. But I'm confused, how can I get the mesh and material now, from that gameobject? Does that gameobject have a mesh filter now, or something?

[rigid island]

getcomponent through the gameobject

I recommend you just make a prefab that has all that setup already

[wintry crescent]

I can't. I'm swapping a mesh on an object that is already a reference in other scripts, and I don't want to mess with those because they're from the asset store, and there's a ton of them.
I just need to randomize a couple of meshes on objects like that.

if I destroy and recreate that object, those references would become null. If I disable/enable objects, those scripts won't work. Hence I need to alter the mesh filter on those objects directly.

[orchid surge]

Working on a 3D game with a ton of hand placed enemies. To help with hand placement, I want to be able to see the various enemy models standing where I placed them in scene view. So simply dragging enemy prefabs in would be nice. But because there are so many, I think it will be important to pool and spawn them. So I can't just drop prefabs in. Any advice on this issue?

I have two ideas. Either I make a spawner that uses graphics.draw to preview what I placed, or I can place prefabs in and they can zorch themselves and leave behind spawn points when the game starts. Neither sound that great, so I'd appreciate some outside perspective.

[spark spire]

I'm looking for some insight or resources about world state systems and how they implement catching up a default state to a desired state.

[oblique spoke]

https://docs.unity3d.com/ScriptReference/SerializeReference.html might work better.

[modern creek]

I use a state system for my turn based battle game (I can provide a steam/google link if you want). Basically there's a state object that has the "true" state, and a list of battle actions that modify the state as the turns come in over the network. There's also some pretty deep equality checking and the ability for the server to send the "post" state in addition to all the change events for debugging help.

Any time a new turn comes in, I also copy the "true" state into a before state that can be modified by the turns slowly (ie, to allow animations to happen and not need to worry about things like showing the hit points before the attack has finished).

Not sure what specifically you're looking for, but hopefully that's useful?

[spark spire]

It it, i think the bit im missing out on is a state having entry and exit data, which is closer to a state machine than my simpler style of just a dictionary of state names and a boolean if its done

[smoky pike]

https://paste.ofcode.org/zn8wz4aJp9PY3bSkvw7sh4
In my game, dots instantiate on a screen, and you have to click them in the order they came in and avoid clicking the bad dots.

Problem: The error is in the randomizeArray() function which randomizes the "dots" array to ensure that the dots instantiate in a random order. It's saying that the dots[i].name is invalid for some reason

[somber nacelle]

what is the actual error you are receiving

[somber nacelle]

well those line numbers don't line up with the code you've shown. but a null reference exception means that the entry in the array is likely null if it isn't throwing when you access the Length property of the array

[smoky pike]

the error is thrown on line 255

[somber nacelle]

just breezed on past the rest of that message that told you the issue then, eh?

[smoky pike]

the content of the array are dots(sprites) that are not in the scene. I instantiate those dots in the scene, and then destroy them whenever the user presses on the dots .

[somber nacelle]

seems like one or more of your colored dots variables are not set in the inspector. also why not just populate the array directly in the inspector instead of these separate variables?

i also feel like i've given you this advice before . . .

[leaden ice]

Seems like you simply haven't assigned those colored dots variables. Unclear to me why those variables even exist

[somber nacelle]

also looking back, it seemed you previously had more than one copy of the component in the scene which caused a similar issue. make sure that isn't the case again.

[smoky pike]

the variables are set in the inspector

[somber nacelle]

pretty sure you said that last time

[somber nacelle]

#💻┃code-beginner message

[smoky pike]

its not this time

[somber nacelle]

take that code i gave you last time and add it in again and show me what it prints. again.

[smoky pike]

ok

[somber nacelle]

actually wait, let me modify it a bit real quick to make it nice and obvious for you

for(var i = 0; i < dots.Length; i++)
{
  Debug.Assert(dots[i] != null, $"Array entry is null at index {i} on {name} - {GetInstanceID()}", gameObject);
}

put this in Start before you call that randomize method or even at the beginning of the randomize method, either option is fine

[fluid lily]

Perfect thanks!

[smoky pike]

nothing is being printed out

[leaden ice]

Add a log before the loop and print the length

[somber nacelle]

show the updated code and the updated error message(s) you receive so that i can see the actual current line numbers

[smoky pike]

https://paste.ofcode.org/i74rq77QmYdxZAuTZZV9ry

[somber nacelle]

do you perhaps have some extra line of code somewhere (or even a blank line) in your code editor that is not being included in the code you pasted in the site? because it seems your line numbers are off by 1 from what you indicated before. also please use the updated code that i provided that will print the name and instance ID of the object.
you should also move it directly above that loop where your error is happening

[smoky pike]

https://paste.ofcode.org/ZHinJkPhK47PjgfW9gXpay

[quartz folio]

Presumably you destroy some "bad dots" and then keep trying to use them, causing an NRE when you read the name.

[smoky pike]

yes that is what is happening, the bad dots are the ones that are null in the List

even though Destroy the "bad dots", they still appear on screen for some reason

[somber nacelle]

the array is filled with the prefabs not the instances that were spawned in the scene. you don't even bother storing references to the instantiated objects

[smoky pike]

ah that make sense than k you

[swift falcon]

man. trying to make an fps controller is making me feel extremely stupid

i'm on the verge of just following some shitty yt tutorial since doing it myself is just resulting in headaches

[rigid island]

Anyone familiar with the new Splines know how to get the nearest point on the spline itself based on a certain position? Not sure what I'm doing wrong

As you see from video, the Utility function they provide does seem to follow the spline but the offset seems really off?

btw their function is using float3 from UnityMathematics
Here is the utility function I'm using
https://docs.unity3d.com/Packages/com.unity.splines@2.2/api/UnityEngine.Splines.SplineUtility.html

My code

 void Update()
    {
        SplineUtility.GetNearestPoint(spline.Spline, transform.position, out float3 xyz, out float t, 3,2);
        nearestPoint = new Vector3(xyz.x, xyz.y, xyz.z);
        Debug.Log($"x: {xyz.x} y: {xyz.y} z: {xyz.z}"); Debug.Log("t: " + t);
    }

    private void OnDrawGizmos()
    {
        if (Application.isPlaying)
        {
            Gizmos.color = colorDebug;
            Gizmos.DrawSphere(nearestPoint, 0.2f);
        }
    }

[night sparrow]

is there any easy way to find all gameobjects in an area? ( not colliders, gameobjects whose origin is inside said area )

[quartz folio]

I'm unsure exactly what your setup is, but I imagine the problem is that the spline is not in the space you think it is, and you will need to transform transform.position into the space of the spline, and convert the xyz coordinates back to world to display them.

[rigid island]

I was thinking this as well, I just tried looking for any methods already included that might do this, just not sure where to look anymore tbh.

The Utility class I've linked , I thought would do the trick but got close to something but no cigar.. was hoping someone might know a way, googling proving no answers on this.

[quartz folio]

transform.TransformPoint and transform.InverseTransformPoint

[rigid island]

I will try this, would this go on the In V3 or the xyz result

[quartz folio]

splineTransform.InverseTransformPoint(worldSpacePoint) // get the query point in local space of the spline, used in SplineUtility.GetNearestPoint
splineTransform.TransformPoint(result) // get the result in world-space.

[rigid island]

You are a life saver my friend! thank youuu!

[keen solstice]

I have a slight problem, I have a scriptable object that displays text, and the PC's name on top of the text box.

Is there a way to, on a mouseclick on the scriptble object, cause the UI textbox to pop up and the text to play, then close the window?

The scriptable object and the script (latter)

[leaden ice]

ScriptableObjects are just assets or in memory. They can neither display anything nor be clicked on.

Now GameObjects and their components? That's a different story.

Look into IPointerClickHandler or the EventTrigger component

[keen solstice]

thanks

Also, are there any tutorials on developing a save point system?

Where you can only save on the correct savepoint?

[spare dove]

Are you supposed to be able to just remember how your code works, even as it gets larger and larger? I find myself having to reread my own code to remember function names etc all the time

[lean sail]

I dont even remember what scripts I have sometimes, itd be a miracle if I remembered what functions it has. You're supposed to write readable code and use comments for this exact reason.

[narrow wolf]

Been suffering from 2 days while trying to make jump buffer and Hold jump to jump higher work together... But it doesn't.

What a pain

Trying to get jump similar in Hollow Knight

[swift falcon]

hi. i’m trying to conceptually break down the fundamental requirements for a fps controller instead of just throwing it together. i would appreciate if anyone could point out any glaring flaws in my logic here :3

-gravity - subtract from the character collider’s y velocity (applied in world space) up to a limit (terminal velocity)
-ground check - cast a short ray from the bottom of the capsule to slightly below it. this should hopefully mean it can tell when it is grounded. when grounded, set y velocity to -1 so it stays on the ground
-velocity - have this be a vector2 that’s applied in local space to the transform’s x and z components in FixedUpdate (y vel is separate since it should be applied in world space i think.)
-velocity decay - on the ground your velocity should decrease quickly (possibly exponentially according to your speed) which would serve as a movement speed cap
-input - saved in Update and added to the player’s velocity in FixedUpdate to ensure it gets processed asap
-jump - if grounded, set y velocity to 10 and give a small window where y velocitu cannot be set to 0 (seems to not let you jump and overrides the jump velocity otherwise)

wall and ground collisions seem to be handled by the character collider so i think that should be everything i need :)

this has been giving me headaches for a while so i decided to step back and consider it as a whole

[swift falcon]

good luck, i love the way hk controls :)

[swift falcon]

COMMENT EVERYTHING.

[mystic yoke]

As you get more comfortable, patterns emerge that make it easier to keep track of more of what's going on. You can also learn to write code in a manner that is easier to understand when you read it again.

Commenting is also useful but ideally should convey intent or explain architectural decisions rather than describe what each line of code is doing. The code can speak for itself if you write it to be easy to read.

[night sparrow]

how can i get the real rotation of an object?
( say his parent is rotated to 30, the object itself is -10 then i want 20)

[mystic yoke]

That is .rotation

[night sparrow]

it calculates parent rotation?

or at least gives me the correct rotation?

[mystic yoke]

.rotation is the global rotation

[night sparrow]

oh cool, thought it's relative

[mystic yoke]

localRotation is the local rotation

[night sparrow]

thanks1

[mystic yoke]

Np

[vocal fulcrum]

hey, can you read the tEXt chunk of a png file at runtime?

[mossy snow]

why wouldn't you? the file format is pretty straightforward

[dense vessel]

Hello!
I generated a mesh with square faces (like in Minecraft) at runtime.
The mesh has a mesh collider and the player has a mesh collider and a cylinder mesh.
My problem is when I walk against walls, it does something weird, as if the player was slightly going inside the collider and then getting expelled.

I'm quite new to 3D and physics in Unity so I have no idea what could be causing this and how to fix it 😦

I also tried with a box collider for the player and it was even worse : the player was getting stuck when walking against walls.

[night sparrow]

there are a couple of causes that can be the reason for your problem. Since i don't have enough info to help you i'll list some of them:

1. Your player's collider may be uneven.
2. your movement system needs an overhaul - this may be the real cause behind your player getting stuck on box colliders
3. you are trying to push yourself into the geometry, which causes unity to pull you back (movement system again)
4. you are using physics based movement and didn't account for friction

[dense vessel]

Thank you!
For the movements I set the rigidbody velocity so the player is "pushed" into the walls I guess, could this be the problem?

private void FixedUpdate()
{
    float x = 0;
    float z = 0;
    if (Input.GetKey(KeyCode.W)) z += 1;
    if (Input.GetKey(KeyCode.A)) x -= 1;
    if (Input.GetKey(KeyCode.S)) z -= 1;
    if (Input.GetKey(KeyCode.D)) x += 1;
    rb.velocity = z * 8 * transform.forward + x * 8 * transform.right;
}

But I don't really see what else to do, shouldn't the collision system prevent any movement into the wall (instead of allowing it and then pushing the player back) 🤔

Also I set friction to 0 for both colliders

And for the player collider I simply used the default cylinder mesh and a mesh collider

[night sparrow]

the main problem is that you're setting the velocity and then entrusting unity to handle the rest, this will cause some major problems, especially later on when you want to implement slopes.

My suggestion is that you take a look at a couple of open source movement systems to learn from them. As to why this is happening. In unity's eyes, you clipped into a wall with a specific vector, after a physics update. It pushes you back to where you should've impacted the wall, in box collider, it happens to be where you were but slightly forward (resulting in you almost staying in place). For mesh collider, since it isn't a perfect wall, you get the bouncing motion.

As for a quick fix, you should check first if you're going to clip a wall, and if yes. You should cancel that vector.

[dense vessel]

Alright thank you! 🙂

But basically that's the same as recreating a collision system 😭

[idle saddle]

i have an UI Image (a world map). I want to move another object when the player moves through the world.
I have a relative world spaced position to the top left corner of the map, but as the UI anchor coordinates aren't translating to world coordinates 1:1 I somehow need to calculate a conversion ratio. I have no idea how though... I tried using referencePixelsPerUnit along with the images pixels per unit, but its still off

currently doing:

var camPos = (Vector2) UnityEngine.Camera.main!.transform.position;
_rectTransform.anchoredPosition = (camPos - _mapCorner) * (canvas.referencePixelsPerUnit/pixelsPerUnit);

[peak halo]

Hey, hope y'all are doing great. I got a problem that I am struggling to come up with an approach to.

So basically, I am making a strategy game where the player will be controlling their pawns from above and there will be these NPCs that will fundamentally do the same things involving combat. Most of these are irrelevent though. So I am trying to come up with a system that can give me points in my procedurally generated map that are good points to take cover in a combat. (mostly props stitched together. So not a procedural terrain.) In the case of the player's pawns, I just want them to check if their current position is a cover to play a specific animation and maybe crouch. But for the NPCs, I will need to find these points from scratch and send them there.

So I came up with several approaches that didn't exactly satisfy my needs so I did a little research and saw this video: https://www.youtube.com/watch?v=t9e2XBQY4Og

This is exactly what I need but unfortunately I am using the AStar Path-Finding Project (https://arongranberg.com/astar/) and to be honest, I didn't really understand how this approach fundamentally works. I tried going over the code, watching the video at 0.5x. But no, I do not seem to understand, I don't know if I just lack some key information here or if the video is actually hard to understand but when I tried to slowly review the code myself and just get how it works then do it myself a little differently, I still don't understand much because of the lack of documentation.

Has anyone tried achieving something like this or knows the fundamentals of a system like this? I have several years of experience so not a total beginner but there are just some things that I don't get about this. I just need the fundamentals of this then I'll code it myself to fit my case.

Thanks a lot!

[vagrant blade]

@waxen spruce !collab

[tawny elk]

📢 Collaborating and Job Posting

We do not accept job or collab posts on discord.
Please use the forums:
• Commercial Job Seeking
• Commercial Job Offering
• Non Commercial Collaboration

[hollow hound]

I spawn Player in Awake. Objects that are dependent from player initialising in Awake too. Like:

public void Awake()
{
   _weaponsController = ReferenceManager.Player.GetComponent<PlayerWeaponsController>();
} 

I can't do this initialisation in start, because I have events I want subscribe to in OnEnable:

public void OnEnable()
{
    _weaponsController.onWeaponChange += HandleWeaponChange;
}

So I'm getting null reference errors because some objects trying to access player before it is spawn.
How can I resolve this issue?

I can move initialisation to start, move subscriptions to start with the check for enabled and isSubscribedForX flag. And then add another subscription in Enable that checks for null on target and checks isSubscribedForX before subscription.
But I'm sure there is a better solution for such common flow.

[ashen yoke]

that is the solution you are not supposed to use Awake for accessing external objects

[waxen spruce]

oh okie cool

[ashen yoke]

Awake/Start are not just methods they are part of phased initialization, first phase will call Awake on all objects, second phase will call Start

within a phase there is no guarantee of order

unless you fiddle with SEO

[hollow hound]

Ok. So I have external object with event I want subscribe to. And I want to subscribe to it in onEnable. What is the common practice for such cases?

[ashen yoke]

OnEnable happens after awake right before Start, should be fine

[hollow hound]

So I need move initialisation and subscription to onEnabled and also add check to not initialise multiple times if object would be enabled again?

[ashen yoke]

pretty much

[mossy shard]

i did

i simply set the destination of my ai (im talking about enemies) based on the agro

i do agro by a radius check

[ashen yoke]

you can move your ReferenceManager higher in SEO

[mossy shard]

and i block the radius on the point it detects collision with anything rather than player

[ashen yoke]

but it means from now on you are relying on manually setting your whole architecture in SEO and maintaining it there

[mossy shard]

and if i block for an estimate amount of time the enemy losses me

@peak halo hopefully i helped

i didn't neceserally played with the A* i played with the way it gets it's targets

[hollow hound]

What is SEO?

[ashen yoke]

https://docs.unity3d.com/Manual/class-MonoManager.html

[hollow hound]

Thanks. I'll try to avoid that and change where I am accessing objects.

[normal hedge]

I am having an issue, wherin I have a Canvas that holds a game over screen, and is disabled by default. It has a button that reloads the scene. However, afterwards when the screen is needed a second time, it just throws a MissingReferenceException instead. I have looked around the internet, and the solution I found there was to mark it as DontDestroyOnLoad - but when I did that, the Canvas got duplicated on Scene Reload (and is not hidden). Is there a way to fix this?

The class responsible for showing the Canvas:

public class GameEndBehavior : MonoBehaviour
{
    [SerializeField] private Canvas gameEndCanvas;
    
    void Start()
    {
        PlayerHealthBehavior.OnPlayerDeath += OnPlayerDeath;
        DontDestroyOnLoad(gameEndCanvas);
        Utils.SetVisibilityRecursivly(gameEndCanvas.transform,false);
    }

    private void OnPlayerDeath()
    {
        Utils.SetVisibilityRecursivly(gameEndCanvas.transform,true);
    }

    public void OnGameRetry()
    {
        SceneManager.LoadScene(SceneManager.GetActiveScene().name);
    }
}```
PlayerHealthBehavior:
```csharp
public class PlayerHealthBehavior : HealthBehavior
{
    public delegate void PlayerDeath();
    public static event PlayerDeath OnPlayerDeath;
    public override void OnDeath()
    {
        Utils.SetVisibilityRecursivly(transform,false);
        OnPlayerDeath?.Invoke();
    }
}```
Utils:
```csharp
public static void SetVisibilityRecursivly(Transform transform, bool visible)
    {
        foreach (Transform child in transform) SetVisibilityRecursivly(child, visible);
        transform.gameObject.SetActive(visible);
    }```

[hard viper]

Q: how expensive are unity’s collision checks? Does the CPU time scale quadratically with the total colliders in scene at once? Or is unity smarter than that?

[ashen yoke]

it scales with amount of colliders being solved in groups of colliders touching, called islands

100 rigidbodies piled up will result in combinatorial explosion for the solver

100 in sleep state far apart wont participate in any solving at all

[hard viper]

interesting. is there an article in documentation or something?

[ashen yoke]

physx docs

[hard viper]

could you help guide me a bit more to the right spot? googling unity physx just sends me to a bunch of wrong places

is it in the normal documentation database?

[ashen yoke]

https://gameworksdocs.nvidia.com/PhysX/4.1/documentation/physxguide/Index.html

dont know which version unity uses

https://gameworksdocs.nvidia.com/PhysX/4.1/documentation/physxguide/Manual/RigidBodyCollision.html#broad-phase-algorithms

[hard viper]

so PhysX is not a Unity/C# thing, but a system thing?

[ashen yoke]

physx is a library by nvidia

unity integrated it into its component model

[hard viper]

gotcha

[ashen yoke]

you use components as a intermediate interface

[peak halo]

Thanks, though I didn't exactly get it, what is an agro? Can you elaborate a little on how the system works overall?

[hard viper]

I will read that document to educate myself. ty for helping

[leaden ice]

It's much smarter than that.

Look up OctTrees

And KD trees

And BVH

It's using some or all of these optimizations

[hard viper]

ok. also if I understand cache’s explanation, let’s say I have a tilemap. That tilemap has a bunch of masses of ground tiles in one layer.

1. Composite collider groups areas.
2. Every tile gets a separate box collider (very dumb).
   If I understand properly, Unity will not take a performance hit by switching from 1 to 2. Is this accurate?

[cobalt gyro]

if a raycast is spawned inside of a collider will it return that collider as well

[ashen yoke]

static non moving colliders should only impact memory

rigidbodies are what impact performance, when 2+ rigidbodies touch they form a local group which is using a solver to resolve collisions

[leaden ice]

Not accurate. There's a tradeoff of memory and it's more complicated than just a or b

The distribution of boxes and objects that might collide with them may also be relevant

[hard viper]

I’m assuming memory is free. Just thinking about CPU time

[ashen yoke]

the more rigidbodies are interacting within that group the bigger the perfromance impact, depending on how much time it takes the solver to stabilize the whole group

[leaden ice]

But management of memory takes CPU time

They're never totally independent

[ashen yoke]

so if you have a tall box filled with spheres which is near impossible to stabilize you will bring your game to a crawl

and there yes it grows non linearly

[mossy shard]

ye, i create an overlap sphere as a radius and detect each collider it collides with

[hard viper]

so if I understand properly, CPU time needed scales with (rigidbodies)^2

[steady moat]

I think that you might not understand how the SamplePosition actually works. When you sample a position on the NavMesh, it tries to find the closest "Valid" position. Then we check if the position is actually hiding the player. If not, then we try the opposite (Resample the position but with an offset).

[mossy shard]

furthermore i can get the object itself as a transform, rb and it's tag

[ashen yoke]

i cant say exact complexity, i dont think it is clearly defined

[mossy shard]

if it's let's say an obstacle i prevent the radius detecting past it and in it

[hard viper]

well, let’s say I have a jar of jelly beans, like you described. The cost of the jar would be more like ~rigidbody^2 in the jar, and not ~collider^2 in the jar

so if I had a jar of jelly beans and all the beans are colliders, then we are totally ok. But slowly changing jelly beans to rigid bodies is what will quickly raise the cost.
Would that be accurate?

[steady moat]

If you have no rigidbody, there is nothing to calculate.

[ashen yoke]

yes, static moving colliders also have a small cost but if its static its one less object for the solver to iterate on

they still produce contacts but for the rigidbodies

[vernal plank]

So can you change the texture of an HDRP material in unity with C# ?

its working for normal material

[rigid island]

yes

[vernal plank]

can i show my code and ask for what am doing wrong then @rigid island ?

[mossy shard]

have i been more exact?

i used the term agro because i specifed that i do this for my enemies

[hard viper]

Follow up question: Let’s say we have a jar of jellybeans. Every bean is a rigidbody with 1 sphere collider.
Would giving every jelly bean a second sphere collider quadruple the total cost per frame?

[vernal plank]

using UnityEditor;
using UnityEngine;
using System.IO;



public class AssetDatabaseExamplesTest : MonoBehaviour
{
    [MenuItem("AssetDatabase/printmat")]
    static void SubFolderExample()
    {
        var folders = AssetDatabase.GetSubFolders("Assets/Silex-Materials_Pack/Textures");
        string foldvar = folders[3];
        string[] files =  Directory.GetFiles(foldvar+"/", "*.png", SearchOption.TopDirectoryOnly);
        string wellyay = files[0];

        string materialPath = "Assets/Silex-Materials_Pack/Materials/test/Mat_test.mat";


        string texturetest = "Assets/Test/bltest-1.png";
        Texture2D extexture = (Texture2D)AssetDatabase.LoadAssetAtPath(texturetest, typeof(Texture2D));
        // Debug.Log(extexture);

        Material material = AssetDatabase.LoadAssetAtPath(materialPath, typeof(Material)) as Material;
        // Debug.Log(material);
        material.SetTexture("_MainTex", extexture);
        // Debug.Log(extexture);
        EditorUtility.SetDirty(material);
        // AssetDatabase.GetAllAssetPaths()
    }
}

[mossy shard]

since my NPCS are literally just talking statues or walking from point A to point B rarely

[vernal plank]

material.GetTexture("_MainTex"); did return the proper value

also Texture2D extextur is returning the proper value

but material.SetTexture("_MainTex", extexture); is not returning or showing any error also not working

note for non HDRP material it did work

and if unity version matter its 2020

[ashen yoke]

probably not, it depends on how many contacts were produced, both single and 2 spheres can produce roughly the same amount of contacts, but what can affect performance the most is the shape,
think of it as the classic fitting problem, how many things you can fit in an enclosed space, when you do that example you are asking the solver to resolve this, and it can result in a very long or infinite amount of work,
every iteration every object in the jar is offset by a little, in an attempt to separate them, in case of a single sphere it can be relatively easy, in case of 2 the amount of possible positions they can be in can become astronomical

so its not about the amount of colliders its about the shape

problem also arises from the iterative nature of it, for example solver does 5 iterations in an attempt to move the object away from any contacts, since the object is sandwiched between bunch of others, it still ends up overlapping, so it has to be processed again next frame

object will stop being processed when its found a stable position, it switches into sleep mode

[hard viper]

I see. So if the jar of jellybeans is left completely undisturbed, and if the solver ever gets the beans to all have zero speed, then framerate will go back up

But if the shape sucks, that second “if” is unlikely to happen (quickly if ever)

[ashen yoke]

possibly, there can be some fallback code that breaks out of it even if its not solved

[hard viper]

ty for taking time to explain. I think I get it now. I will read more of that documentation to learn

[hollow hound]

I have:

        void Awake()
        {
            Debug.Log("spawn");
        }

And in another component:

        public void OnEnable()
        {
            Debug.Log("access");
        }

Both components exist in the scene, they are not spawn after game start.
Logs looking like this:

Why Awake is called later then onEnable?

[steady moat]

See https://docs.unity3d.com/Manual/ExecutionOrder.html

Awake and OnEnable are called on all object at first. A.Awake, A.OnEnable, B.Awake, B.OnEnable...

You might want to use Start instead of OnEnable.

You can also alter the script order with https://docs.unity3d.com/Manual/class-MonoManager.html

However, this is not good practice

You should make your dependence explicit and not implicit.

[hollow hound]

Yeah, it working that way, but I don't really want to do it like that.

[hollow hound]

I have object with event I want subscribe to. Ti di this I need to do GetComponent. And I want to subscribe to it in onEnable. What is the common practice for such cases?

[steady moat]

You should have explicit reference to the object through an interface or use an intermediate object (Singleton or ServiceLocator or any other pattern) in between that synchronize them.

It kinda hard to know what is the best in your situation as there is multiple factor.

[hollow hound]

Where I can check more on "explicit reference to the object through an interface"?

[steady moat]

[SerializeField] is an explicit reference to a UnityObject.

You can also get an explicit reference through a Singleton. MyObject.Instance

[hollow hound]

Basically I have UI that getComponenting character health, but the character is spawn when the scene starts and there is different characters that can be spawn.

[steady moat]

In this situation, you better have an intermediate object such as a Channel and an object that contains all the player instead of using the Observer Pattern.

When the UI is created, you query the current available player.
When a player is created, it notifies the channel which the UI is subscribed to.

It requires something to hold the current player.

That can be a static (Which is not recommanded) or a GameManager script of the sort.

[hollow hound]

Why static classes for such things is not recommended?

[thin aurora]

Because static gives far less control

For example, there is no way to pass dependencies to static methods

[steady moat]

It is usually not recommended because it has less flexibility.

[thin aurora]

A better way to create a "static" context is to make a singleton

[hollow hound]

Thanks

[hollow hound]

So I need to subscribe to GameManager event in onEnable of the UI components and then call the method which will invoke the event in Start?
I can't invoke event immediately when the player spawns because it can happen before ui components subscibe to this event, right?

[digital coyote]

i am trying to make leaning like in rainbow six siege and it works kinda but when i rotate the camera it leans in to wrong places and has the wrong rotation. can someone pls help

private void Awake()
    {
        motor = GetComponent<PlayerMotor>();
        onFoot = new PlayerInput().OnFoot;

        headPosition = camHolder.transform.localPosition;
    }

    private void Update()
    {
        //Debug.Log(isFreeLook);
        camYRot = cam.transform.localRotation.y;
        cam.transform.position = camHolder.transform.position;
    }



public void LeanStop()
    {
        leanAngle = 0f;
        isLeaning = false;
        leanDistance = 0f;
        Debug.Log(isLeaning);
    }

    public void LeanLeft()
    {
        leanAngle = maxLeanRotation;
        leanDistance = -maxLeanDistance;
        isLeaning = true;
        Debug.Log(isLeaning);
    }

    public void LeanRight()
    {
        leanAngle = -maxLeanRotation;
        leanDistance = maxLeanDistance;
        isLeaning = true;
        Debug.Log(isLeaning);
    }

    public void ProcessLean()
    {
        if(isLeaning)
        {
            Quaternion leanRotation = Quaternion.Euler(cam.transform.localRotation.eulerAngles.x,cam.transform.localRotation.eulerAngles.y,leanAngle);
            cam.transform.localRotation = Quaternion.Lerp(cam.transform.localRotation,leanRotation,leanTime);

            Vector3 cameraOffset = cam.transform.right * leanDistance;
            Vector3 adjustedCameraOffset = Quaternion.Euler(0f,player.transform.eulerAngles.y,0f) * cameraOffset;
            Vector3 targetPosition = headPosition + adjustedCameraOffset;
            camHolder.transform.localPosition = Vector3.Lerp(camHolder.transform.localPosition,targetPosition,leanTime);
        }
        else
        {
            Quaternion leanRotation = Quaternion.Euler(cam.transform.localRotation.eulerAngles.x,cam.transform.localRotation.eulerAngles.y,0f);
            cam.transform.localRotation = Quaternion.Lerp(cam.transform.localRotation,leanRotation,leanTime);

            camHolder.transform.localPosition = Vector3.Lerp(camHolder.transform.localPosition,headPosition,leanTime);
        }
    }

[leaden ice]

camYRot = cam.transform.localRotation.y;```
Did you mean `localEulerAngles` here?

[vernal plank]

@rigid island hey i dont wanna take much of your time but you said yeas about changing HDRP with unity i found out in the docs there is HDMaterial unity 2020 didnt recognize it, can you point out for me what am missing ?

btw i shared the old code above

[normal hedge]

is there a event that fires after Start?

[leaden ice]

what are you trying to accomplish?

[normal hedge]

I need to build a node graph (for a perk system) - and to build the graph I need to be sure all nodes exist, so I wanted to create a seperate class handling all the graph building, but that would need to happen after the rest of the nodes all exist - hence me looking for something after start. (The nodes would be already in the scene, and no new nodes would come to exist while running).

[leaden ice]

Create the nodes in Awake (which runs before Start)
build the graph in Start

or do this somewhre

void Start() {
  CreateNodes();
  BuildGraph();
}```

[digital coyote]

no I mean cam.transform.localRotation.y it was for debuging its not used in the leaning functions.

[leaden ice]

it's a meaningless number

it's part of a quaternion

[normal hedge]

That could work, Ill see - ty!

[leaden ice]

not the rotation around the y axis

[digital coyote]

it was for debugging a outer future i don't use that number anymore but thanks.

[sterile linden]

Yo! Trying to store my spline data somehow so it's reachable within jobs. Is there any easy way to do that? I just want to evaluate a point along the spline to set a position

[peak halo]

Thanks! How efficent is that though? Isn't there a way to do this with better accuracy?

[leaden ice]

Whenever I've done this I've converted the spline into an array of Matrix4x4s equidistant along the spline then you just linearly interpolate between the two closest ones inside the job to sample it

[steady moat]

Does not seem to be the most reliable way of finding hiding spot.

[sterile linden]

Ah so no way to use the built in methods? So basically the spline is not compatible with ecs unless I do my own implementation?

[peak halo]

Yeah I also felt like it. You know any better ways?

[leaden ice]

I think so - since it uses a lot of managed objects

Assuming you're talking about Unity's spline package

[sterile linden]

Yeah Unitys package. Damn. Thank you for the answer! ⭐ 👍

[leaden ice]

potentially if you use this maybe it's workable since it's all structs? https://docs.unity3d.com/Packages/com.unity.splines@2.0/api/UnityEngine.Splines.Spline.html#UnityEngine_Splines_Spline_CopyTo_UnityEngine_Splines_BezierKnot___System_Int32_
Not sure if that's blittable or not

or how easy to sample that is

I've always just found it easier to use the M4x4s

[peak halo]

Yea not really I still don't understand what an agro is. Thanks for your efforts though really appreciated

[normal hedge]

I hope its not too early bring this down, but does anyone have suggestions regarding this problem?

[sterile linden]

I was able to save the BezierKnots in a blob to construct my spline as a NativeSpline 🙂

[tropic quartz]

Basically, normally when you load a scene all the stuff in the old one is destroyed.
What "DontDestroyOnLoad" does is it prevents it from being destroyed, so you end up with a double since you are loading the same scene and not destroying the version you had in the old one.

You could use a singleton pattern to prevent the double.

I think there might be something funky going on with the statics here?
Static variables and methods are shared between all instances of the same class so maybe something stays from the "old" scene and doesn't get updated for the new one.

Or it could be a timing issue.
Maybe something is trying to get a reference from it while it's still disabled.

[normal hedge]

I would have expected DontDetroyOnLoad to be smart enough to stop the duping issue - welp.
How would a singleton prevent this problem?
The static stuff - how would I transfer an event without having it static?

[tropic quartz]

Singleton pattern is basically just a system that makes sure you only ever have 1 copy of something in a scene.
I like throwing it on things liek music players along with Don'tDestroyOnLoad to keep music playing between scenes without having duplicate music players.

I'm not entirely sure if it has some weird interactions with events though.

[ashen yoke]

most likely you are just not clearing events

consequtive invocation raises dangling delegate referencing dead object

[normal hedge]

so, when I load the screen, I unsubscribe from the event?

[ashen yoke]

whatever subscribes should unsub

OnEnable/OnDisable

or OnDestroy

[night sparrow]

anyone knows a vs code extension that automatically generates documentation like this?

i hate xml documentation

[normal hedge]

welp, that did the trick - thank you very much!

[tropic quartz]

.cache knows way more about code stuff than I do, he's probably right. I dunno that much about events, but seems you have static events yea.

[night sparrow]

similar to googledoc in python

[eager yacht]

Well the xml doc is there for a reason. IDEs and text editors with intellisense support use it to actually give you information when you hover over something, or when going through quick actions. Not using it is very weird.

[night sparrow]

the image i linked is from unity's own docs, and vs-code handles it pretty well

[ashen yoke]

@night sparrow like this? https://marketplace.visualstudio.com/items?itemName=cschlosser.doxdocgen

[night sparrow]

yeah, but for c#. This extention works for c and cpp

[ashen yoke]

hm doxygen supports c# out of the box

[stoic ingot]

Is there a way to use OnButtonClicked for all interactable Buttons of a Canvas? As in, I got 4 buttons and want the same thing to happen, no matter which Button you press

[night sparrow]

u sure?
i have it installed and can't seem to get it to work.

[ashen yoke]

according to their docs yes https://www.doxygen.nl/index.html

[fervent furnace]

find all buttons on canvas and add listener?

maybe there are better ways to do this

[eager yacht]

is it? Not seeing it on the doc page, on their github source, or even through Rider. Where are you seeing that type of formatting?

[night sparrow]

i ctrl-clicked some unity native ( in this case GameObject)

[stoic ingot]

i got 20 canvas with 4 buttons each, so serializing fields for them and dragging every single one in the inspector? theres gotta be a better way

[eager yacht]

In vsc? If so, then I guess whatever it uses to decompile emits that format.

[fervent furnace]

find object of type

[ashen yoke]

sure, create a component attach to button, component injects its onclick, component raises event onclick, something else picks up the event

if you only have same button behavior everywhere, i guess you can just GetComponentsInChildren<Button>

[night sparrow]

yeah, so it would seem

[stoic ingot]

i'll try this out , thanks

[night sparrow]

guess i have to eat it up for my hate for such docs

[ashen yoke]

do you use any type of event bus?

[ashen yoke]

there may be some extension that simply renders it differently

i.e. while editing you get raw xml view, while not editing you get it formatted for display

[eager yacht]

Then yeah, it's probably just taking the existing xml and converting it to that. Since that format won't give intellisense hints in VS or Rider. Just tested with VSCode too and it doesn't get any info from that type of structure either.

[night sparrow]

did the same, seems like that's how they make their natives more readable to people

[eager yacht]

Makes sense

[night sparrow]

but it's soo good 😦

[eager yacht]

Slightly offtopic, but I like the format of rust doc comments: https://doc.rust-lang.org/rust-by-example/meta/doc.html Seems to be in that same type of vain of the vscode decompilation. Very simple I guess.

Oh it's bascially markdown, that's why

[ashen yoke]

https://marketplace.visualstudio.com/items?itemName=poohcom1.csharp-prettier-docs

[stoic ingot]

ah dw i got it working, i just attached the script to the buttons in the prefab of all my canvases

dont know what an event bus is XD

[steady moat]

I would have probably use pre placed object around edges that define hiding spot instead of relying on the Navmesh. Maybe you could use some sort of tool to automate the placement.

[leaden ice]

oh nice!
https://docs.unity3d.com/Packages/com.unity.splines@2.3/api/UnityEngine.Splines.NativeSpline.html

NativeSpline is compatible with the job system.
I had no idea this existed!

[civic folio]

is there a way to use an int variable as a float in calculations? Just like 1f but instead of 1 having a variable

[eager yacht]

int foo = 2;
float bar = 1f / foo; // will be converted to a float due to a float being in the operation
float bar = 1 / (float)foo; // can manually convert

[leaden ice]

either cast it manually, or it will automatically be casted if it's involved in arithmetic with a float

[civic folio]

cast?

[leaden ice]

yes - as in Nom's third example above^

(float)foo casts the foo variable to a float.

https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/types/casting-and-type-conversions#explicit-conversions

[ripe bloom]

Accidently used a while loop in my update function and now my game is fozen! How do I stop play mode if I can't interact with the program? the bg sound plays

Or how do I save/recover the progress of the currently open scene?

nvm closed it. so sad

[leaden ice]

You can salvage this by attaching a debugger to Unity

and throwing a breakpoint inside the loop

from there use your debugger's immediate execution mode tools to throw an exception or something

e.g. throw new Exception("blah");

that will break you out of the loop

ofc if it's in Update it'll go right back into the loop next frame - so if you can set something in the loop to null to cause exceptions that would be better

[static matrix]

You can log errors without any extensions, just do Debug.Error (Or Debug.LogError, one of the two)

[leaden ice]

I'm not interested in logging errors

I'm interested in throwing an exception to break out of an infinite loop

[static matrix]

if the infinite loop is with for or while you could use break

ohhhhh

odd

[leaden ice]

would break work in immediate mode in a debugger?

I have no idea

i always just throw an exception but it might work too

[narrow blaze]

I would like to enable the canvas with a click event. Without having to use "public GameObject canvas"

i want find the childcomponent with code

so i could reuse the script for other objects

Currently i have this

[leaden ice]

you need to assign the reference somehow

it depends where this script lives (which GameObject in the hierarchy?)

[narrow blaze]

The script lives in the parent component

[leaden ice]

Castle?

[narrow blaze]

yes

[leaden ice]

Then you can do like:

void Awake() {
  canvas = transform.Find("Canvas");
}```

[ashen yoke]

just use GetComponentInChildren<T>(true) ?

[leaden ice]

or transform.GetChild(1) < second child

[leaden ice]

or this

[narrow blaze]

But can you use this OnMouseDown?

[leaden ice]

you could but you shouldn't

you should do it in Awake

[ashen yoke]

you shouldnt use OnMouseDown at all

its outdated legacy concept

[narrow blaze]

I want to open a ui when i click on the "castle" object. That's why i ask

[leaden ice]

#archived-code-general message

get the reference in awake

use the reference in OnMouseDown

OnMouseDown is fine for now but there's a newer more flexible version of it if you're interested for later

it's called IPointerDownHandler

or IPointerClickHandler

[narrow blaze]

Oh thanks i will look into that!

[echo plaza]

Hey there, I'm having a known issue with the Input System where if you rebind a key, it won't update the generated C# classes. One of the Unity developers said you can still use the generated C# classes, but you'll have to dynamically set the action references. I'm not sure what this means exactly and how I could go about doing this.

[leaden ice]

You just use
https://docs.unity3d.com/Packages/com.unity.inputsystem@1.6/api/UnityEngine.InputSystem.InputActionRebindingExtensions.html#UnityEngine_InputSystem_InputActionRebindingExtensions_SaveBindingOverridesAsJson_UnityEngine_InputSystem_IInputActionCollection2_
and
https://docs.unity3d.com/Packages/com.unity.inputsystem@1.6/api/UnityEngine.InputSystem.InputActionRebindingExtensions.html#UnityEngine_InputSystem_InputActionRebindingExtensions_LoadBindingOverridesFromJson_UnityEngine_InputSystem_IInputActionCollection2_System_String_System_Boolean_

not sure what they mean about dynamically setting action references in this context

rebinding a key is presumably something you're talking about happening at runtime

we can't write new code at runtime

[echo plaza]

I've got those two in a separate script and they work. The issue I'm having is that the rebinding only works in the main menu and not in a game. In the game it does save and show the correct key, but the player's controls stays exactly the same, until I go back to the main menu and into the game again.

Reading the person's post again, he says it works best with the Player Input (Which I'm using) or .inputactions directly. So I'm not sure what's going on.

[leaden ice]

sounds like you have two separate InputActionAsset instances

and you're only loading the binding overrides into one of them

If you have a PlayerInput component - that component has its own InputActionsAsset copy

and so would a standalone instance of the generated C# class

also if you have a new scene being loaded and you are therefore discarding the PlayerInput from the previous scene, you will have to load the binding overrides again since you now have a new instance of the input actions asset

[echo plaza]

Is there a way to regenerate/replace that copy with the new one? From what it sounds like; the rebinding script is updating the .inputactions file and not the copy on the PlayerInput component, which is why it works when I reload the scene since it's making a new copy of the .inputactions file.

[leaden ice]

Well https://docs.unity3d.com/Packages/com.unity.inputsystem@1.6/api/UnityEngine.InputSystem.PlayerInput.html#UnityEngine_InputSystem_PlayerInput_actions appears to be writable

although I can't say I ever tried to do that at runtime. It should probably work

the other option is to just do cs void Start() { myPlayerInput.actions.LoadBindingOverridesFromJson(bindingsJson); }when the new PlayerInput is created

[echo plaza]

I think I could convert that script to work so whenever a rebind is finished it executes this code on the player.

I'll try it.

[chilly beacon]

so guys i have my player movement script which was working comepletly fine and all of a sudden it doesnt move the player

using System;
using System.Collections;
using System.ComponentModel.Design;
using Unity.VisualScripting;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    public float playerSpeed = 10.0f;
    public float playerSpeedBuff = 5.0f;

    bool isDashing = false;
    public float dashSpeed = 50.0f;
    public float dashDuration = 0.4f;
    public float dashTime = 0.0f;
    public float dashCooldown = 0.10f;

    Vector2 mousePosition;
    public Animator animator;
    public Rigidbody2D rb2d;
    public Camera cam;
    private Vector2 moveInput;

    void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
        cam = Camera.main;
    }

    void Update()
    {
        Debug.Log(Input.GetKey(KeyCode.W));
        Debug.Log(Input.GetKey(KeyCode.A));
        Debug.Log(Input.GetKey(KeyCode.S));
        Debug.Log(Input.GetKey(KeyCode.D));

        moveInput.x = Input.GetAxisRaw("Horizontal");
        moveInput.y = Input.GetAxisRaw("Vertical");

        animator.SetFloat("Horizontal", moveInput.x);
        animator.SetFloat("Vertical", moveInput.y);
        animator.SetFloat("Speed", moveInput.sqrMagnitude);

        if (Input.GetKeyDown(KeyCode.Space))
        {
            isDashing = true;
            dashTime = dashDuration;
            rb2d.velocity = playerSpeed * moveInput.normalized;
            dashCooldown = 0.10f;
        }
    }

    void FixedUpdate()
    {

        if (isDashing)
        {
            rb2d.AddForce(dashSpeed * moveInput.normalized, ForceMode2D.Force);
            dashTime -= Time.fixedDeltaTime;
            dashCooldown -= Time.fixedDeltaTime;
        }
        else
        {
            rb2d.velocity = playerSpeed * moveInput.normalized;
        }
        if (dashTime <= 0)
        {
            isDashing = false;
            dashTime = dashDuration;
        }
    }
}```

[delicate plank]

This is my current code for a 2d game I wanna make, some1 pls help me add player rotation:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
Rigidbody2D body;

float horizontal;
float vertical;

public float runSpeed = 5f;


// Start is called before the first frame update
void Start()
{
    body = GetComponent<Rigidbody2D>();
}

// Update is called once per frame
void Update()
{
    horizontal = Input.GetAxisRaw("Horizontal");
    vertical = Input.GetAxisRaw("Vertical");
}

private void FixedUpdate()
{
    body.velocity = new Vector2(horizontal * runSpeed, vertical * runSpeed);
}

}

[vague slate]

Do MonoBehaviour's InstanceID match it's GameObject one?

[delicate plank]

how

[steady moat]

It does not as far as I know. Each UnityEngine.Object has one.

[ashen yoke]

no

[atomic iris]

hi! i plan to have tons of canvas' in my game and im wondering at the performance impact of it. for reasons, the canvas' always need to remain on but i can disable the elements in the canvas. will these canvas' that dont have any active objects to render still have an impact on performance?

[ashen yoke]

if they are completely empty then no

[leaden ice]

no they are separate objects hence have separate IDs

[ashen yoke]

canvas is a way to optimize transform hierarchy, canvas stops update transform event propagation

so the more the merrier

[atomic iris]

cool, thanks for the answer!

[echo plaza]

Not sure how many people use visual scripting here, but I'd like to access its scene variables with C#. Here is a snippet of my code which almost works, besides it isn't wanting to use the Unity.VisualScripting API.

using Unity.VisualScripting;

private GameObject player = (GameObject)Variables.ActiveScene.Get("PlayerGameobject");

[steady moat]

https://unity.com/how-to/unity-ui-optimization-tips

[leaden ice]

what does "it isn't wanting to use the Unity.VisualScripting API." mean?

[leaden ice]

you need to read the error

Just showing a red underline is not useful

[echo plaza]

Sorry about my lack of context, here's what the error says "The name "Variables" does not exist within the current context".

[leaden ice]

what version of the Visual Scripting package are you using

[echo plaza]

I am using the latest one; Version 1.7.8 - May 10, 2022.

[leaden ice]

Are you seeing that error in Unity too, or only in VS?

[echo plaza]

It is also in the editor.

[leaden ice]

Ah this is in the input system samples?

Seems like you're trying to edit them?

[echo plaza]

Yup.

[leaden ice]

My guess is the input system samples have an assembly definition

[echo plaza]

OH RIGHT!

[leaden ice]

(if you show the top of your VS you'll see the assembly you're in)

[echo plaza]

I had to add TextMeshPro to have it work!

Hmm, there doesn't appear to be an AssemblyDefinitionAsset just for Unity.VisualScripting. There are different variants like Unity.VisualScripting.Core.

[leaden ice]

Most likely core is what you want

[echo plaza]

Alrighty, it was the core one. Now I have a lot of errors, but they all explain what I need to do to fix them.

[vague slate]

Does setting rotation to AudioSource's game object make any difference at all?

[modest pawn]

Hey, any suggestions of libraries to send/receive events from a server(asp.net) ? It's not performance-critical so I just want something that works and looks clean.

[leaden ice]

UnityWebRequest

[half sparrow]

Hello. I am struggling with something in Unity 2D. I am spawning some tiles (square sprite) via code in order , to form a grid 5x5 in positions x=0, y=0 to x=4 y=4. The code is

 //Initialize grid to 0 values and spawn tiles
        for (int i = 0; i < rows; i++)
        {
            for (int j = 0; j < columns; j++)
            {
                int rgb;
                GameObject g_tile = new GameObject($"Tile x: {x} y: {y}");
                g_tile.transform.position = new Vector3(x, y);
                g_tile.transform.parent = gridManager.transform;
                var sRenderer = g_tile.AddComponent<SpriteRenderer>();
                sRenderer.sprite = sprTile;

                rgb = (x + y) % 2 == 0 ? 1 : 0;

                sRenderer.color = new Color(rgb, rgb, rgb);
            }
        }
    }

The Result is a grid with black and white squares. like a chess but in grid 5x5.
What i want to do?
I want to each of these tiles to have a child TextMeshPro in the center with a number (any number this is not the problem). How can i spawn TextMeshpro inside these tiles?

Ignore the apples and the owls and the beaver

[soft shard]

If the pivot is not centered (and its Spatial Blend is set to 3D), it could, but the audio is affected by the min and max ranges of the source, if those ranges move further from the listener due to rotation, then it could affect it - in most cases, I would imagine this wouldnt have any affect on how the sound is heard (maybe except for the doppler levels in one ear or the other, if the rotation is fast or instant)

[vague slate]

nah, position is const, only rotation is at question

[soft shard]

Ah, in that case, for 3D sounds, it shouldnt have any affect on how the audio is heard

[vague slate]

for 2d it seems to be irrelevant either

[soft shard]

Right, for 2D, its always played at the (headphones) level, and not from the world so the distances woulnt affect the listener

[vague slate]

oh well, g ood stuff

[fast belfry]

Is there a way to completely create and initialize animator controller inside of code?
I want to store my animation clips serialized on a weapon and on start initialize a controller and dynamically create it, with states and transitions, which are the same for all weapons.
The key goal is to avoid manually creating controllers for each weapon. Is there a good way to do this?

[steady moat]

You can use AnimatorOverrideController.

[ashen yoke]

you just spawn it? I dont understand what the problem is

create a prefab for text, spawn that prefab

[fast belfry]

That actually looks like something that could solve this issue, thanks

[steady moat]

You can also make your transition with Animator.Play instead of the Animator transition from the StateMachine.

[half sparrow]

i tried this code but the text isnt shown.

GameObject tileText = Instantiate(textPrefab, g_tile.transform.position, Quaternion.identity);
tileText.transform.parent = g_tile.transform;

[leaden ice]

inspect the object in the scene after it's spawned

check out why it's not visible

[half sparrow]

i was thinking if i could add a textmeshpro component but i get an error. For example

var tileText = g_tile.AddComponent<TextMeshProGUI>();
tileText.text = "my number";

But this does not work.

[gray mural]

you have mistake

[leaden ice]

because it already has a SpriteRenderer

you can only have one graphic/renderer on an object