archived-code-general

[naive swallow]

Is there a utility method or general easy way to get a "Sub-matrix" of a 2D array? Like, I have a 100x100 array of floats, and I want to get the 10x10 array starting at some arbitrary x,y point? I feel like there's a way to write this neatly with a Linq query but I just can't get the brain jusice flowing enough to figure out how

[steady bobcat]

Why not do it with 2 for loops yourself?

Sometimes it can be done with 1 for loop if its not using the 2d array syntax but depends on the range of data you need.

[naive swallow]

Yeah, that's the brute force way but I feel like there's a good way

And I wanted to see if anyone could come up with some obvious method I had overlooked

[steady bobcat]

If its [] instead of [,] and you want say 3 "rows" of data then it has a start and end index
else you kinda need to use 2 for loops to correctly index some xy min max range

[naive swallow]

It's an actual 2D array with [,], not an array of arrays

[steady bobcat]

no, [] is not [][]

[][] is an array of array pointers
[,] and [] are 1 array

[naive swallow]

Yes, one array, two dimensions. That's what I've got. Linq should work on it, but I just can't come up with a query that'll do it in one line

I'll just use a loop and if I have a brainwave I'll change it later

[steady bobcat]

you cant do generic stuff properly on a 2d array

[scenic heron]

Hello, Does anyone have a good yt video on a simple player controller? like moving around and looking around. ty :)

[steady bobcat]

i once experienced this issue and it pushed me to only a normal array and calculate index myself

int index = (y * width) + x;

[late lion]

You can save a little code and time by iterating over the y range and copying the whole x row with Array.Copy. Due to the memory layout of a multi dimensional array, there's no way to do it in one copy.

[scenic heron]

does anyone know how to fix this? i want the character to still be standing up even if it's looking down or up

[hexed pecan]

Dont rotate the player on its x axis

[analog talon]

I have a gameobject that is present on screen but I can't click on and don't see in the hierachy (the tree trunk circled in red). How do I remove it? I added this object right as the editor was reloading and it kinda bugged there. Restarting the editor didn't fix it.

[outer plinth]

Hey, I am trying to intersect the yellow sphere (defined on the GPU) with a number of rays (also defined on GPU) with the origin being the white wireframe sphere, however, I'm really struggling to understand the coordinate spaces which everything should be in, does anyone have any pointers?

currently I am intersecting the sphere, however, when I try to display the hitPoint via Gizmo the coordinate matrix is incorrect

"Note that camera space matches OpenGL convention: camera's forward is the negative Z axis. This is different from Unity's convention, where forward is the positive Z axis."

[steady bobcat]

Gizmos from the Gizmo class use world space, is this stuff currently done in view projection?

[sharp temple]

I fixed my character controller issue. So turns out when max step offset is a low value then the max slope angle starts glitching out

Lower the step offset it more it glitches/you can go on higher slopes

[fiery bough]

Yeah, idk if this is the channel for this, but..

recently i switch OS to "linux mint" and when i installed unity a tried to open a project this error shows:

[mellow sigil]

It's not the right channel but if you google the error message there are plenty of solutions

[steady bobcat]

pretty code related to me

[steady bobcat]

Try installing openssh if its not already. Is this x64?

[fiery bough]

Yup

[steady bobcat]

strange. does it give more info about what tried to use it?

[fiery bough]

Oh sorry, I mean it's x64

[steady bobcat]

my only idea is its linked to a newer libssl version that you have. I've experienced annoying issues before with glibc versions ✊

[fiery bough]

how?

[steady bobcat]

i dont know enough about linux to say tbh, i know that some distributions are behind. Ideally you want the full error if it has more information

ideally an error like this: /usr/lib32/libstdc++.so.6: version `GLIBCXX_3.4.29' not found

[fiery bough]

mmm, I alredy install "libssl-dev" and restart the editor but nothing

[steady bobcat]

try adding openssl and libcurl4

openssl has been enough for me to use libcrypto in the past (ubuntu + debian)

[fiery bough]

YEEI, NOW I HAVE ANOTHER ERROR

WOHO

[steady bobcat]

yay

[fiery bough]

FINALLY

Thanks

[steady bobcat]

np, my struggles with openssh have paid off 😆

[sleek bough]

@livid inlet This is a code channel, not for promotion or whatever this is. If you have a question then !ask a question.

[tawny elk]

:thinking: Asking Questions

:mag: Search the internet for your question!
:book: Use the API Scripting Reference and User Manual and this troubleshooting site for commonly posted issues.
:wrench: Attempt to debug your issue.
:thought_balloon: Find an appropriate channel by reading the name and description in #🔎┃find-a-channel
:grey_question: And don't ask to ask, ask a full question illustrating with screenshots if needed.
-# For more posting guidelines, go to #854851968446365696

[old elk]

this isn't really a question but I'm working on the UI side of my game at the moment and just realized I accidentally implemented the MVC pattern

i really can't escape MVC even outside of WPF or Java 😔

[rigid island]

🤔 https://learn.unity.com/tutorial/build-a-modular-codebase-with-mvc-and-mvp-programming-patterns

[old elk]

...why the link lmao

i didn't say it was a bad thing

i'm just getting war flashbacks to CRUD applications

[rigid island]

same reason you posted a random thought

[bleak tree]

Hi, I'm having a pretty major issue with Scene loading/unloading.
In the main menu of my game, when I load into the game, there is no issue, everything works as expected and intended, however, once inside the game, if I go back to the menu, be it by using the pause menu or by dying, the GameManager component that exists in my game scene will seemingly remain loaded, causing the pause function to break once loading back into the game

For some reason, it also causes the code that runs the pause menu to work twice even in the main menu, where no GameManager exists

[rigid island]

going to have to show the setup / scripts related to GameManager, for starters is it inside a DDOL ?

[bleak tree]

No it's not a DDOL

[rigid island]

oki.. show scene switch scripts + game manager component

[bleak tree]

Scene switch

By Game Manager component you mean inside of Unity?

[rigid island]

what else is there ? (the actual component aka the code)

[bleak tree]

It's messy and I have redundant functions cuz I made changes recently but havent gone back and removed the old unnecessary code, but these are all the functions that deal with loading scenes

[rigid island]

use 👇 to share code btw

[tawny elk]

Posting code

📃 Large Code Blocks

Use links to services like:
https://paste.mod.gg/, https://hastebin.skyra.pw/, https://paste.ofcode.org/, https://paste.myst.rs/, https://scriptbin.xyz/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[bleak tree]

oh

apologies

[rigid island]

more interested in seeing how you deal with assigning a Instance to Game Manager

sounds like you might not be handling possible duplicates

[bleak tree]

    {
        if (Instance == null)
        {
            Instance = this;
        }
        else
        {
            Destroy(gameObject);
        }
    }```

[shadow wagon]

how did you type this character using your keyboard?

[bleak tree]

I did not

that's supossed to be an accent in Spanish (está) but some programs can't cope with stuff that isn't English

[shadow wagon]

i know it would be á

[bleak tree]

As someone who has both and accent and an Ñ in my full name I struggle a lot with this

idk why it happened or how

But it's everywhere lol

[shadow wagon]

oh, so pressing the key does that?

[bleak tree]

nope

Again I don't know how that happened

[shadow wagon]

did you not write that comment?

[rigid island]

seems okay then..

[bleak tree]

There is a chance it's a chatgpt comment but chatgpt is fully supported in Spanish so that should not be it

I wrote this code like over a year back now

I barely remember how it works

[rigid island]

I would double check the setup also you should probably steer away from AI Slop generators

[bleak tree]

No don't worry lol no a single line of code is from gpt

I had little time to comment the code (I was on a deadline) so I resorted to it for comments

Double checking to make sure my code wasn't murdered in the process (it was and I had to pull a backup to save the whole enemy spawn system lol)

[rigid island]

you could put maybe inside Game Manager the OnSceneLoaded event from Scene Manager and see if it persists for real

if its not something else is jammin up your pausing

[bleak tree]

the thing that confuses me the most is that it seems 2 instances of the GameManager exist after loading the scene back from the main menu

I have setup a couple Debug.Log with "Pause" and "Resume" on them and they fire at the same time once reloaded

But only once on a fresh load

[rigid island]

well ideally that code in Awake should prevent duplicates

[bleak tree]

Yeah ik

There's also no visible duplicate in the hierarchy

So im just left wondering if it's a Unity moment

I've had those in the past

[rigid island]

much more likely something in the logic itself not unity

hard to say much from this point of view because we cannot see the full setup

[mossy snow]

this fragment of code is a little suspicious. You are enabling the cursor and assigning variables just before a new scene is loaded? If this is in a singleton, I would expect a yield or other wait logic right after the load. Even synchronous non-additive scene loading like this isn't instant; the load is scheduled to happen at the end of the frame

[bleak tree]

Removing those lines of code doesn't fix anything though

[old elk]

fwiw you should change your text encoding in your IDE if you end up working with strings in other languages, at least in C++ I had an issue where my shit wasn't working right because the encoding was set to ANSI or something and it needed UTF-8

but that's minor

[mossy snow]

you probably have a zombie GameManager based on what you describe. You'd have to show GameManager, but likely you are not unsubscribing properly when the scene unloads or when GameManager is destroyed

[old elk]

this is not a great method of handling singletons that derive from MonoBehaviour, you should use something like this instead https://github.com/UnityTechnologies/InputSystem_Warriors/blob/master/InputSystem_Warriors_Project/Assets/Scripts/Utilities/Singleton.cs

I adapted this for my own game, works fine. Will probably help if the issue is a "zombie" singleton.

from what I'm gathering, the way you're using this singleton runs antiparallel to the concept of a singleton - at no point should you ever be doing new Singleton outside of the actual Singleton class, instead you should have your getter/accessor (in this case the Instance property) return the existing instance or create it if it doesn't exist

[bleak tree]

Hmm well, for the time being I have managed to fix the issue I was having, pausing now works correctly when the game scene is reloaded

[old elk]

re: events, Unity behaviours have an OnDestroy message that you can use to unregister event handlers and whatnot when the object is destroyed as well

in regular C# you can just overload the destructor (at least, you should be able to)

[bleak tree]

I do think I'd like to try redoing this entire project down the line

It's way too messy and needlessly complex as it stands

[old elk]

welcome to all game dev

"spiderweb code" is kind of a norm

[bleak tree]

I am decently proud of a couple of the systems I put together but they for sure could be much improved

[old elk]

doesn't have to be, but it often is lmao

[old elk]

yeah same, honestly that feeling never goes away lmao

and if it does, you've either reached the pinnacle of software development or you messed up

[bleak tree]

I would also like to redo it since I want to turn it into a multiplayer game, but with the current code that seems next to impossible

I already tried

[old elk]

generally speaking if you want to make something multiplayer you can start by trying to make it singleplayer but with an internal game server

that's how Hatsune Miku handled Minecraft's multiplayer way back in like...1.3

[bleak tree]

Somehow my enemy spawning system ended up spawning "ghost" entities in the client server that can be "killed" but never actually "die" server-side so you have the server having all enemies while the client has killed them all

But if the host kills them, then they also despawn in the client after the despawning time has passed

It's.. weird

[old elk]

sounds like your server isn't updating non-host clients

your host should just be another client btw

[bleak tree]

They just dont seem to be syncronized at all

They don't follow the same target

[old elk]

yeah that's a netcode issue

[bleak tree]

They are the same entities but function as separate ones

[old elk]

no enemy logic should be occurring clientside unless it is completely deterministic

[bleak tree]

It's kind of amusing, in a way

[old elk]

2013 warframe energy

stuff that can be clientside is like

particles, ragdolls, etc.

though serverside ragdolls are funnier becase everyone sees the same dumb physics

[bleak tree]

getting the player movement to work and be synchronized was already a mess lmfao so I think I'll leave the MP idea for a rewrite

If I even end up doing it

[old elk]

yeah multiplayer is always a challenge

[bleak tree]

But I really want to do it cuz it's a cod zombies clone and where's the fun if it's not a 4 player coop

[old elk]

i'm not planning on it anytime soon for that reason, huge pain in the ass

[bleak tree]

Speaking of things that were a pain
FUCK coding the perks god that was an awful experience i HATE speed cola (I probably made it way harder than it had to by virtue of adding perks after the game was ""done"")

[old elk]

despite having worked on CoD I've never played it

i have no idea how the perk system works lmao

[bleak tree]

Speed cola increases reload speed

I ran into an issue where it seemed to be exponentially increasing reload speed so it just ended up being instant..?

[old elk]

were you using an "attribute" model for stats like reload speed?

[bleak tree]

I do not know what that is

[old elk]

or were you just modifying the value in place

[bleak tree]

I just use good ol variables

The major issues was actually the actual reload speed and the animation being sped up properly

[old elk]

attribute is like...you have an "Attribute" class (C# calls annotations "Attributes" which is confusing as shit if you're new to it) that stores the base value of the attribute, like strength/speed/etc., and then you have modifiers and a final value

that's the simplified version

but that lets you easily do stuff like temporary buffs and bonuses from perks or equipment

well, "easily" - it's more work to set up, but you can reliably remove those buffs/equipment/perks and have everything work as intended lmao

[old elk]

honestly i just use animancer, i'm not sure how animation speed works with other animation systems

[bleak tree]

                case 2:
                    if (!speedcola_Active)
                    {
                        //Quick revive
                        speedcola_Active = true;
                        player_PerkCount++;
                        player_ActivePerks.Add(Instantiate(perkIcons[perkID], perkContainer.transform));
                        foreach (GameObject gun in weaponHandler.playerWeapons)
                        {
                            gun.GetComponentInChildren<GunController>().IncreaseReloadSpeed();
                            Debug.Log("debug_speed cola " + gun.name);
                        }
                        GameManager.Instance.ReduceScore(perkCost);
                    }
                    break;

    public void IncreaseReloadSpeed()
    {
        //gunAnimator.speed = 1 * speedMultiplier;
        gunAnimator.SetFloat("speedMultiplier", defaultSpeed * speedMultiplier);
        reloadTime /= speedMultiplier;
        emptyReloadTime /= speedMultiplier;

    }

    public void DefaultReloadSpeed()
    {
        gunAnimator.SetFloat("speedMultiplier", defaultSpeed);
        reloadTime *= speedMultiplier;
        emptyReloadTime *= speedMultiplier;
    }

[old elk]

ah, switch statements.

[bleak tree]

This ended up working

So this way it stayed

[old elk]

mood

[bleak tree]

I remember when I first coded the reload function

My smartass decided to use if statements to check the different possible states a gun could be reloaded in

[old elk]

ideally your game would not understand your UI's existence and the UI would just read your game data, so you wouldn't have to do that Instantiate for the perk icon

[bleak tree]

And fought with that decision for a few hours

Until I realized for loops exist

And just used a for loop

[old elk]

tbf if you're coding something like staged reloads this isn't terrible

[bleak tree]

It's a super basic classic cod style reload where reload cancel is possible and reloading just adds the missing ammo back to the mag

So if you are 21/90 you end up 30/81

It's quite literally just a for loop

[old elk]

...yeah this is the exact reason you want to use a class to hold stats + modifiers instead of just modifying a value in place

[bleak tree]

IEnumerator ReloadWeapon(float weaponReloadTime)
    {
        isReloading = true;
        yield return new WaitForSeconds(weaponReloadTime);


        // Llena el cargador con munici�n de reserva
        for (int i = ammo; ammo < ammoCapacity && reserveAmmo > 0; i++)
        {
            ammo++;
            reserveAmmo--;
        }
        isReloading = false;


    }

[old elk]

i have to ask

[bleak tree]

the script im most proud of is the barrier destroying and repair mechanic that I nailed 100% first try

I was amazed

Had no troubleshooting cuz it just worked

[old elk]

why not just do reserveAmmo -= ammoCapacity - ammo then ammo = ammoCapacity

that's so many instructions

i oversimplified a bit but you can still account for the player not having enough reserve ammo pretty easily

[bleak tree]

Cuz I didnt think of that

Simple as

the for loop worked and did exactly what I needed it to, so I just left it there

[old elk]

int reloadAmount = Math.Min(reserveAmmo, ammoCapacity - ammo);
ammo += reloadAmount;
reserveAmmo -= reloadAmount```

well for future reference lmao

[old elk]

tbf this is literally how the industry works so

the todd howard memes are actually very accurate

[bleak tree]

it just works

[bleak tree]

the game is super light anyway so I don't need every optimization possible

actually i havent tried it on like super low end hardware

[old elk]

yeah i mean don't sweat learning projects too much

[bleak tree]

I probably should do that

[bleak tree]

I mean it's the kind of project I'd like to take a bit further than just being a learning project

Wouldnt still be working on it otherwise

[old elk]

honestly my game isn't even a learning project and i still overthink everything without even performance testing it first

[bleak tree]

I'd like to release it on Steam and all but it's so barebones and janky that I'd feel bad doing so

it has like 8 weapons and 1 tiny map

[old elk]

i would take a serious, long look in the mirror before trying to release anything on steam

ask yourself if you're fine with it basically not selling

[bleak tree]

yeah I am

[old elk]

unless you've got a genuinely unique idea most people will pass up an amateur single dev game

[bleak tree]

It's like 100 bucks to upload to steam isn't it

[old elk]

I have no idea. I've never looked into it

my shit's nowhere near far enough along lmao

I'm sure there's a fee somewhere

[lean sail]

yes it is, 100 usd for a steam token

i believe you do get the money back if it makes 1000 (or whatever amount they said)

[old elk]

interesting

Also remember that you'll probably only end up with ~50% or less of profit from sales, pre-tax

i don't mean to say the only factor in game dev should be whether or not it'll sell, but if you're trying to make a go of it as an indie dev you do need funding sadly

[bleak tree]

This is more a hobby rn

I'm currently aiming towards entering the industry as a 3D artist

I like coding and 3D about equally much so im kind of torn

[old elk]

honestly - and i don't mean this as a commentary on your programming skills, i just mean the job market sucks - you're better off doing art than code

it's rough getting your foot in the door in software

[bleak tree]

it's also rough in art

it's rough in general especially in the current landscape with all the layoffs

[old elk]

yeahh

i got laid off a bit under two months ago

[bleak tree]

that sucks

[old elk]

not looking to go back in

wasn't a fan of working in AAA

[bleak tree]

I just want to start working right now I need that experience

[old elk]

i wasn't exactly the best engineer to begin with and the demands kept ramping up across the board to the point where we had people walking out lmao

maybe keep an eye on smaller studios that make games you like and see if they have openings/an email, smaller companies typically just have a [e-mail] type email where they accept resume/portfolio submissions rather than a more formal application process through a website

though they will typically post general role requirements for each role

[bleak tree]

I've often looked at those and rarely do they need entry/junior level unfortunately

[old elk]

that's kinda the other issue with the job market in general, nobody wants to hire new grads/entry level

[bleak tree]

I'm starting an internship next week so at best I could have a job after that is over but that is highly unlikely

[old elk]

oh shit, nice. good luck, some places do internships to scout new hires tbh

...others do it for tax breaks

[bleak tree]

It's a master's internship so idk if they want new people

[merry forge]

how should I go about starting a coroutine from a script that is not monobehaviour?

[lean sail]

you have to start it from a monobehaviour

choose one related to your object, or one that doesnt get destroyed, and just call StartCoroutine on it

[merry forge]

hm, ok

that should work, actually

thanks

actually now that I think about it, coroutines still block the main thread don't they

so I'm going to have to use async either way

[rigid island]

It is important to remember that coroutines are not threads. Synchronous operations running within a coroutine still execute on the main thread. If the goal is to reduce CPU time spent on the main thread, it is just as important to avoid blocking operations in coroutines as in any other script code.
https://docs.unity3d.com/2017.2/Documentation/Manual/BestPracticeUnderstandingPerformanceInUnity3.html

[merry forge]

is there a way to run heavy computation on a thread separate from the UI that is considered "better" in unity? For c# in general I'm seeing multiple options like async, System.Threading, and System.ComponentModel.BackgroundWorker

[rigid island]

You can run any other code in Other threads as long as its not an operation that requires Main Thread, UI is one of them usually

most Unity functions are on the main thread

Awaitable lets you switch threads on fly so you can potentially go back n forth on main vs other, depending on the code you call in that function

also you could potentially look into Jobs

thats multi threading

[merry forge]

got it

ok I'm not sure how to write this

basically, I need to run (on another thread) a function that blocks for a few seconds, then use its return value on the main thread upon competion

[cosmic rain]

Async or thread sleep or something

Maybe both

[inland comet]

does someone know real quick if Init() or Awake() happens first?

I can't find Unity docs on Init()

[rigid island]

because it doesn't exist?

are you confusing Start & Awake?

[inland comet]

Init() happens on prefab creation is all I understand but it does exist

[rigid island]

what do you mean on prefab creation exactly ?

[inland comet]

That's what I want to know too 😅 I have so far gathered it seems like it's from a framework so not technically Unity which is why it's there and I can use it to pass arguments but there's no docs...?

[rigid island]

where are you getting this info from ?

[inland comet]

https://discussions.unity.com/t/init-args-a-next-gen-di-framework/866024

[rigid island]

and what exactly are you trying to do

[rigid island]

this is a "framework" someone created, its not a unityengine thing

[inland comet]

It would probably take me too many paragraphs to explain 😅 Dynamically growing plants is hard apparently. I need to grab a variable from an object when it's created via a prefab but only change that variable if it was Init() with a specific game object

[sharp garden]

sorry for the random ping but what unity version are you on?

even though we are doing the same thing it has different results, wondering if it might be a bug that has been fixed in a newer unity/spline package version 👀

[rigid island]

by "create prefab" are you talking about spawning / instantiating a Gameobject from prefab ?

prefabs are nothing more than assets as template for what a gameobject will be, think of it similar to a blueprint to gameobject

anyway if thats the case you could create your own Init Function to run if you instantiate
var myInstance = Instantiate(prefab, pos, rot)
myInstance.Init(someObject)

[inland comet]

Yeah I know what a prefab is, that doesn't answer if Init() or Awake() happens first

I think it's Awake() I just ran some debugs

[rigid island]

right easily testable, and "cretae a prefab" means something completely different to me

creating a prefab happens usually in the Editor , what you are talking about is Instantiation

[inland comet]

Yes the Init

[rigid island]

"the init"

no idea what you mean literally no such function exists until you create one

Instantiation and Initialization, different things

[round violet]

in unity is there a update dependency concept ?

aside having a direct reference and calling a function, making an object always tick after another one

[swift aspen]

Project Settings > Script Execution Order

[round violet]

thanks

[last quarry]

LateUpdate is probably better in this situation as it's more explicit

[round violet]

in my case its something that must run early

shouldnt ReadValue on a input action return a value ?
i have a touchscreen "swipe" (delta binding path), it wroks correctly if i use the performed callback, but if i read the input value on update i get 0,0

from the docs and comment on the function i should be able to get the current value for the last captured input stack

[steady bobcat]

Unity 2022.3.51
Splines 2.6.1

there is version 2.8.1 actually which has nice extras (2.7.1 added spline extrude profiles for roads!)

[round violet]

when creating a new mono instance with the new keyword, is it attached to a gameobject ? if yes, how does it determine which one ?

[tender ice]

any ideas on how to make the wall not be rendered behind the glass?

not even sure if this is the correct chat but yeah

[steady bobcat]

Its not and you shouldn't do this for this reason. Only use AddComponent<>()

[night harness]

How broken do those instances get? I assume a lot of course but curious if stuff like a coroutine would still be managed correctly

[steady bobcat]

I presume StartCoroutine() would throw an error as Unity is who is continuing their execution over time

async functions would work still

[last quarry]

It just doesn’t compile

You are trying to create a MonoBehaviour using the ‘new’ keyword. This is not allowed. MonoBehaviours can only be added using AddComponent(). Alternatively, your script can inherit from ScriptableObject or no base class at all
UnityEngine.MonoBehaviour:.ctor()
ItemClass:.ctor()
inventoryV1:.ctor()

Well either that or it throws. Can't tell from the forum post

[steady bobcat]

should be a runtime exception

we already knew it was a bad idea

[night harness]

lives via activator.createinstance

even calling the gameObject getter throws an exception tho lol

(and coroutines unfortunately do not work)

[steady bobcat]

dunno what you are trying to do but stop 😆

[night harness]

the best way to learn is to fuck around and find out 😄

[steady bobcat]

In this case its just a bad idea. Use async instead or a random object to run coroutines on (they can be started on any Component)

[round violet]

is there a way to reference a prefab with a specific script on it (root) ?

and not a plain GameObject

[night harness]

yeah

same way you'd do a gameobject just with the type you want

unity will be smart and let you drop in a prefab if it has that type on the root

[round violet]

whats the meta attribute for that ?

[night harness]

what do you mean

[round violet]

im talking about a serialized field that only accepts a GO that has a given component

[night harness]

yeah just the type

[round violet]

well it doesnt show anything if i just put the type

[night harness]

it should? is the type inheriting from MonoBehaviour?

[steady bobcat]

[SerializeField]
ParticleSystem particleSystem;

[round violet]

yeah

[steady bobcat]

you are over thinking it

[round violet]

the script lives on another prefab in the Assets

[night harness]

yup

[steady bobcat]

As said already, if the component is on the root of the Prefab, you can drag the prefab asset to the field and it works.

[round violet]

okay so its just the unity object selector thats broken

sad

[night harness]

show stuff

Oh are you looking by pressing the circle

[young yacht]

Coolscript instance = Instantiate().GetComponent<Coolscript>();

you mean this?

[round violet]

well this is not picking the projects prefabs wit hthe script at the root

you have to manually drag and drop it

[night harness]

yeah the default search is dumb

[young yacht]

you cant put stuff from the hierarchy on a prefab

[night harness]

not what they are asking

[young yacht]

ah xD

my bad

[round violet]

yeah i wanted the viewer to display this

which has the script at the root

[night harness]

@round violet if you turn on the adv. one in prefs it works like how you'd expect

but that search mode requires caching/indexing your project which isn't instant

it's better in my experience but your results may vary

[round violet]

i dont mind a initial indexing

thanks for the tip!

[night harness]

And just in case you don’t know this also means you can instantiate and return the type rather than gameobject

Saves the getcomponenting

[round violet]

thats good to know

what happens if i try to edit the prefab ? would unity prevent it or will i just edit the asset ?

[night harness]

as in edit it via code?

[round violet]

yeah

[round violet]

for example, from the BulletPrefab var

[night harness]

It would edit the asset yeah. Same would happen if you were doing gameobject too

Gotta be careful but can be handy in some cases. Eg if you turn off the prefab, instansiate it then turn the instance and asset back on you can delay Awake()

[sonic bloom]

I have two files:
one is command sender
one processor ( process happens frame by frame ( in update loop ) )
i want first file lines to wait until certain flag is turned false in second and then execute next line
but my game frezzes
can anyone pls help me solve this?

[mellow sigil]

You have an infinite loop. If you can't find it yourself you'll have to show the code

[sonic bloom]

using UnityEngine;

public class RobotMovementController : MonoBehaviour
{
    public Traj trajectoryController;
    public URInverseKinematics ikSolver;
    public GripperController gripperController;

    public void goto2(float[] targetAngles, float velocity = -1f, float acceleration = -1f)
    {
        trajectoryController.Goto(targetAngles, velocity, acceleration);
        while (trajectoryController.isTrajectoryActive)
        {
            // Wait for trajectory to complete
            System.Threading.Thread.Sleep(10);
        }
    }
}

i know it is this one but i dont know what to replace it with

[mellow sigil]

Thread.Sleep pauses the entire game. You'll have to use coroutines or async or just check the condition in Update

[sonic bloom]

but if i use it in update then, i will have to set flags to each of them so that they dont run again
and
coroutins i ll try thanks

[mellow sigil]

There are other ways to make one-off events in Update but coroutines are the easiest in this case

[steady bobcat]

async and coroutines are the way to go for this

[round violet]

for a bullet pool system, i wonder if its better that i check for overlaps with a sphere cast on each frame (no collider on the bullet), or if i should use a collider and use trigger/collision detection

idk the physics overhead in unity

(i have hundreds of bullets)

i found this https://www.reddit.com/r/Unity3D/comments/eye8yk/performance_results_collider_vs_overlap_test/ but its 5 years ago

[last quarry]

2D or 3D?

[round violet]

3D

[last quarry]

They don't show the source code, but what might be happening here is they're using the old SphereCast methods, whereas SphereCastNonAlloc is faster, for obvious reasons.

You'd have to test it yourself to find out which is faster

[round violet]

they use OverlapSphereNonAlloc

its written

[hexed pecan]

SpherecastCommand or RaycastCommand are options too

This would also give you continuous detection so you dont get tunneling (projectiles missing collisions at high speeds)

[round violet]

would this work fine on mobile ?
i dont know much about jobs in unity

idk if async stuff is power expensive on mobile

also, would scheduling a new job each frame fine ?

[leaden ice]

As long as it's a job that completes within the frame, yes.

[round violet]

well since its async it could take more than a frame ?

i dont mind receiving the job result a few frames late

[paper lotus]

Hello quick question, For small turn-based RPG, is it better to create a persistent Scene that has Managers, PlayerData, Camera, etc..

[latent latch]

Need a dictionary for an editor tool and I remember that Unity does have a SerializableDictionary but I'm not seeing it serialize any data. I'm specifically talking about this one: https://docs.unity3d.com/Packages/com.unity.render-pipelines.core@14.0/api/UnityEngine.Rendering.SerializedDictionary-2.html
Not enitrely sure why it's in the Rendering namespace but I'm kinda feeling it's not made to serialize monos

Looking just for conformation before I just implement my own

[last quarry]

Unity can't serialize Dictionary so here's a custom wrapper that does. Note that you have to extend it before it can be serialized as Unity won't serialized generic-based types either.

Sounds like what you want, but I'd be hesitant to build on top of the render pipeline like that.

[latent latch]

I'm so confused why it's in the render namespace

they must be using it for some modules inside of it

[somber nacelle]

they need to update the docs because that last sentence about serializing generic types hasn't been true for a couple of years now

and by "a couple" i of course mean since 2020 because that was only like 2 years ago, right?

[latent latch]

If the generic type has a constraint yeah, but otherwise you need those SerializeReferences

[late lion]

This is no longer true, not since Unity 2020.1.
https://discussions.unity.com/t/generics-serialization/758530

[last quarry]

Yes, someone mentioned that. It's still in the docs though

[latent latch]

Ah, ok I got it to work. I forgot to actually tag one of my nested classes which was breaking serialization apparently. Yeah seems to work out of the box for monos.

Not that I care too much about built-in, but since it's part of the URP SRP rendering namespace it wouldnt work unfortunately

[latent latch]

Well, looking at implementations for a serializable dictionary it seems like a lot of these iterate over the dictionary every single time something is serialized and that seems like an awful idea. Anyone any sources to something that would work for say a large grid tool that's actively changing?

[steady bobcat]

You would need to offer your own get/set functions i guess to sync changes with the serialized lists and dictionary

but this brings new challenges

[latent latch]

All these implementations are horrible. It's just clearing the dictionary wrapper and having to repopulate it each time something is inserted

via OnBeforeSerialize callback

[night harness]

i mean

for most people thats just kinda fine

[latent latch]

True, but I got a voxel tool that's got about 500k entries in it

[steady bobcat]

Then you need a custom version that can split up how the items are stored in a smarter way perhaps?

could also not auto sync the changes but require a manual sync to the serialized version?

[latent latch]

yeah i was thinking that. I may just end up writing my own serialization I guess if it comes down to it

[round violet]

are delegates expensive to call each frame ? (at a high count)

for design purposes i would rather use delegates, but performance wise a pooling on update would maybe be better

[somber nacelle]

invoking a delegate is basically exactly as expensive as just calling the methods it contains directly. the expense is when you subscribe/unsubscribe from it as they are immutable so a new instance is created for each of those operations which generates garbage.
of course, if you are concerned about performance you should instead use the profiler instead of asking somewhat cryptic questions where the answer is usually

[plain summit]

Quick question folks:
We have an issue where Application.Quit takes a while on some platforms (6-10 seconds on Windows) and crashes completely on others (Steamdeck). I've seen similar issues come up, but havn't really found any proper solutions for it yet. Has anyone found a way to deal with this and/or a good understanding of the underlying issue?
(This is on 6000.0.38f1)

[steady bobcat]

Do you do any heavy work on OnApplicationQuit()? Do you have any crash dumps/logs you can look at?

[vestal arch]

crashes completely on others
-# well it did quit

[steady moat]

Worth noting that some platform requires you to not use Application.Quit. No idea for SteamDeck.

[plain summit]

The logs look normal (wanted to post the section here but its a tad painful to get it from the steamdeck with my current setup).
The behavior isnt though: its basically a frozen screen that only resolves after putting the deck in and out of standby.

[plain summit]

I only knew this about mobile and web. But thanks for the info, Ill try and see if there are references to this in the docs or forums.

[steady bobcat]

You can use desktop mode to make it easier (and to see if it acts differently). If its using proton with a windows build you just need to locate the wine prefix then locate the relevent files

[plain summit]

Thanks, Ill try that.
Its using a standalone linux build.

[steady bobcat]

cool then may be easier. You can try starting the process and piping the std out to a file.

[plain summit]

the crash doesnt occur on other linux distros we have tested though, which is puzzeling.

so turns out: the crash does not occur in desktop mode 🙃

[steady bobcat]

In game mode its using valves gamescope compositor and it may be miss behaving somehow
https://wiki.archlinux.org/title/Gamescope

I bet using a windows build via proton will just magically fix this issue

[hexed oak]

it's 1000 times easier to serialize a struct and use a list of structs than a dict

[leaden ice]

Why not use both in conjunction?

[vestal arch]

i mean, not really?

you could just use a premade package for nice editor support, like the serializeddictionary asset

[latent latch]

As I mentioned, the serialize dictionary implementations are fake

you need to constantly refresh the dictionary which makes the whole quick lookup pointless

[hexed oak]

^ they're wrappers for other types. And yes I hold my point it takes me 2 seconds to make a simple serializable struct and use that.

[latent latch]

might as well just stick with a list of structs, but for my case I am actively serializing to this dictionary and iterating isn't an option

[steady bobcat]

If you want to do a better version you need to have buckets for the data yourself and serialize these collections instead of one gigantic one.
If your data can already be split in to "dimensions" of some kind then that is also a way to go (kd trees)

[late lion]

How so? Are you only doing one look up per deserialization?

[vestal arch]

wdym by this?

also it doesn't matter that they aren't actually dicts for most cases does it
it's there for dx, not perf

[latent latch]

Ok so here's the problem. If you want to serialize data it needs to be in someway a list as far as I can see. You can serialize that data each time you insert it into the dictionary by throwing it into a list, sure, but if you need to do a lookup it needs to be in the dictionary

But the dictionary will clear its data when unity recompiles, so basically it needs to be in that list at all times, but this defeats the purpose of the lookup

if you are serializing current data at all times, then you need to sync these two containers which means replacing those keys by iterating the list

[vestal arch]

a serializeddictionary is just a replacement for the boilerplate of generating a dictionary from a list of structs, imo

and by replacement i mean, "someone else already did it"

[steady bobcat]

Dictionaries use a private struct Entry to store everything from what I can see but I dont see a way to get them without reflection:
https://github.com/microsoft/referencesource/blob/master/mscorlib/system/collections/generic/dictionary.cs#L61-L66

So this is why its just done in a lists to keep keys and values

[vestal arch]

why would you need to?

[steady bobcat]

overcome the cost of creating a new dictionary on de serialize

Im just trying to point out why it sucks rn

[vestal arch]

so the whole concern here is just, perf on deserialization?

why is this an issue lol

[latent latch]

Because I'm not iterating over a list of a handful of entries

I've a paintbrush for a voxel tool that's inserting hundreds of voxels a frame

which needs to be serialized per stroke

[steady bobcat]

do these have a 3d/2d position?

[latent latch]

3d grid

[vestal arch]

if you want something like a dict, you could

• use a list of structs directly, and use Find or smth
• create a dictionary on Awake so you can use it like a dict
• use a premade asset to do #2 except you don't have to write boilerplate

[latent latch]

It's an editor tool ;p

[steady bobcat]

you could have fixed this ages ago with kd trees as you can serialize these as is

[vestal arch]

gotcha, but how does this equate to "serialized dictionary bad"

[latent latch]

Yeah, I could chunk it more and fix a lot of issues, but the idea is I want to decide the chunk on the export

I guess I can undo the chunks and redo it later?

[steady bobcat]

you can convert the data later, rn you are concerned about actually storing it...

[vestal arch]

or has this entire convo been in the context of your tool the whole time without me realizing lol

[latent latch]

Because ultimately the use case for dictionaries are usually hundreds of thousands of elements, otherwise there's no reason not to use a list really. But the purpose of the dictionary is less of a thing here if you're going to have to iterate to replace the keys each time you want to seralize the state

[steady bobcat]

this is in editor rn hence unity serialization

[latent latch]

Yeah cause otherwise a runtime dictionary would work fine.

But got to deal with Unity's limitations

[vestal arch]

lmao what? dictionaries are commonly used for much smaller spaces, just so there's a nice interface for a mapping

like i said: for dx, not for perf

[steady bobcat]

Id never use a dictionary for 500k voxels 😆

[latent latch]

I mean I use them everywhere too, but this is one the one use case where they would shine

[vestal arch]

cool, but that still doesn't mean serialized dictionaries are inherently bad lmao

[last quarry]

Dictionary lookups are really fast

[steady bobcat]

Voxel[,] voxels = new Voxel[100,100]; //Do this
Dictionary<Vector3Int, Voxel> voxelsDict //Not this

[last quarry]

Obviously you wouldn’t use them for voxels

[latent latch]

I mean, you can pretty much get the same functionality from a list of structs, but if you don't want that boilerplate I get it. Still, you do need a way to draw them on the unity inspector

[last quarry]

Nor would I use an array

[latent latch]

It's an infinite grid btw

[last quarry]

Octrees are more efficient for voxels. Otherwise you’re just storing a bunch of empty data.

[latent latch]

similar to unity's grid

which is why I use a dictionary

[last quarry]

So you’re going to serialize 500,000 dictionary entries in a YAML document?

[latent latch]

Yeah that's another problem. I guess I might as well just write my own serialization

[last quarry]

Definitely a better option here

[steady bobcat]

kdtrees/octrees seems smartest but try to avoid serializing many children as the depth limit is 10
But hopefully it results in some class + list/array that can be serialized and then used as is

[latent latch]

I may be overthinking how quickly I should be serializing the data. Considering how most of these entries are bound to elements on the scene, and since Unity doesn't automatically save the scene data when managing those objects, I could just delay it until saving the scene and reloading the domain.

[primal gale]

Ive got a situation where a flying enemy (2D) fires a bullet from a fixed position under the enemy. But lets say I go above the enemy and the bullet will collide with the enemy, how can I make it os that the bullet ignores the enemy its being made on? Using rb so I can shoot it

[leaden ice]

1. Use layer based collisions
2. Use Physics2D.IgnoreCollision

either of those will work

[primal gale]

got this but it still collides

or do I have to do that after I already instantiate the bullet

that makes more sense

hold on

nope

oh im dumb let me try the ontrigger2d

[leaden ice]

Yeah you have to do it with the actual instance. Not with the prefab. Prefabs don't exist in the game world.

[leaden ice]

OnTriggerEnter2D is too late

you do it when you spawn the bullet

[primal gale]

tried that still dont work

I can try layer collision

[leaden ice]

it works if you do it right ¯_(ツ)_/¯

presumably something is wrong about your code or your setup.

[primal gale]

ive just got this simple code

takes in the rigidbody of the enemy that is firing, and the bullet that was just instantiated

[leaden ice]

you're still trying to ignore the collision on the prefab

bullet is your prefab

[primal gale]

but I thought it becomes real when its instantiated

[leaden ice]

No

[primal gale]

ah

[leaden ice]

bullet is always the prefab

instantiate returns the newly created object

you are ignoring that currently

[vestal arch]

it doesn't become real
you create a new, real version, based on the prefab

[primal gale]

so how would I call the real bullet

[leaden ice]

Capture the return from Instantiate in a variable

so you can do things to it

var newBullet = Instantiate(bullet, ...);

[primal gale]

alright thanks it works now

[chilly surge]

After upgrading to Unity 6, I need to check WebCamTexture.width/height to be positive before calling GetPixels32, or else it might crash on iOS.

[hexed oak]

Is there a way to get a cross section of a gameobject relative to the current camera? Like an outline or something?

I think the bounding box covers a much larger area than the actual outline of the mesh

and when the gameobject is rotated, that bounding box moves to an even more exaggerated larger area

[steady bobcat]

depends what kind of outline you need. Just some post processing effect or texture?

[hexed oak]

I need the screen point positions of the red circle, or a few of them

and if the object rotates (maybe a more complex object would have been a better example), a new outline would be needed

[steady bobcat]

I think you would need to render an outline (using some technique such as inverse hull, edge detect via depth/normal/stencil) to a texture to then extract screen positions of it.

[leaden ice]

Stencil shader?

Do you need it in CPU world or for rendering something

[lusty vector]

holy heck i managed to make the dialoguebox thing actually work! hooray!

[merry aspen]

Hey guys, got some question. Lets say I have some character created from different floating pieces. It would have an idle animation, but lets say, if an object was thrown at them at high speed and I wanted the pieces of enemies to be ejected but slowly float back to their initial position, how should I handle this? Is there such a thing as a non-rigid animation in Unity6?

[lean sail]

You wouldnt be able to use animations here, itd have to be some custom solution. It does kinda sound like an active ragdoll except not a human. If you want every piece to respect physics, then maybe look into using joints to connect everything. Otherwise you'll have to code this yourself

[merry aspen]

Mmhh... Maybe I could put some sort of trackers on parts of an animated (but not rendered) object, and just make the pieces try to approach their coordinates to these trackers

But maybe there is a simpler way...

[lean sail]

That is mostly how active ragdolls work

[merry aspen]

I see! Thanks for the help

[night harness]

@pastel cipher we'll move here

so for stuff that you want to be global i'd suggest something like this

public class MyGameManager : MonoBehaviour
{
    public static MyGameManager Instance;

    [field: SerializeField] public ColorPalette ActivePalette { get; private set; }
}

public class ColorPalette : ScriptableObject
{
    public static ColorPalette Instance => MyGameManager.Instance.ActivePalette;

    [field: SerializeField] public ScriptableColor Damage { get; private set; }
    [field: SerializeField] public ScriptableColor Healing { get; private set; }
    [field: SerializeField] public ScriptableColor Protection { get; private set; }
    [field: SerializeField] public ScriptableColor Currency { get; private set; }
}

So you have a ScriptableObject that holds a reference to all your global color selections. Then you store that on your GameManager.

Because your GameManager is a Singleton you can make a "Instance" field on your ColorPalette that just points to your GameManager's reference of the palette

which means once you plug in a ColorPalette into your GameManager you can use your colors like ColorPalette.Instance.Damage.Color etc.

[pastel cipher]

Ye... but why not just call the TextFormating directly as I am doing already?

[night harness]

The short answer is that you could still do that yeah. But this is moreso an example of using scriptableobjects to keep your logic and data separated in a modular and organised way. some practical benefits of this specifically though is

1. For when you do want certain content to be able to manipulate their prefered color, using the same system everywhere is nice and consistent
2. I know your not concerned with this for this project, but imagine you wanted to provide colorblind accessibility features, to where you could swap out the entire color coded palette of your game by just changing the ColorPalette the GameManager references.
3. In the even you wanted specific associated icons to go along with this color coding, you could store said icons in the ScriptableColor script, which is an example of how easy this would be to expand upon.

[pastel cipher]

I am already adding icons on the TextFormating script along with other fucntionalities. Here: https://pastecode.io/s/a1y4igss

It's not the cleanest, for sure, and I could make it more accesible from the editor which I think is the path you are going for, but, actually, I don't really care much on that regard as long as it's not like incomprensible levels of messy

And I don't think it is

[night harness]

at the end it's up to you

But I do think you should dip your toe in the water abit here when you can

[pastel cipher]

I am gonna have to make a superclass for all the different types of shield, damages over times and stat modifiers on the satatus effects when I begin adding more so, I'd probably consider adding the SO on status effect specifically at that point

[night harness]

Just keep this stuff in mind yeah

getting your definitions out of your code and script default references and into so's and prefabs etc. is gonna have major notable improvements to your workflow once you adjust

[pastel cipher]

Mostly I save them on prefabs, yeah

So me using the status effects as components that are directly added has turned a bit messy, ye

[night harness]

yee

oh another thing

[night harness]

if your like me i'd imagine ColorPalette.Instance.Damage.Color looked very long and gross. with an extra definition per color though you can clean it up with static getters super easy

public class ColorPalette : ScriptableObject
{
    public static ColorPalette Instance => MyGameManager.Instance.ActivePalette;

    [SerializeField] private ScriptableColor damage;
    [SerializeField] private ScriptableColor healing;
    [SerializeField] private ScriptableColor protection;
    [SerializeField] private ScriptableColor currency;

    public static Color DamageColor => Instance.damage.TextColor;
    public static Color HealingColor => Instance.healing.TextColor;
    public static Color ProtectionColor => Instance.protection.TextColor;
    public static Color CurrencyColor => Instance.currency.TextColor;
}

so the static colors just point to the instance, which means now you could just do ColorPalette.DamageColor

could even remove the Color part of the property name ig too

[pastel cipher]

Well, it would be specially annoying if the autocomplete didn't get what I am going to type on like first 3 letters lol

It's fine

Oh, and thanks 😄

[round violet]

im new to the unity profiler and i have a few questions

• can you zoom in the top "CPU usage" horizontal bar ? i cannot see the precise fps/ms (the only "checkpoints" are 15, 30, 60fps) so i dont know if im at 90, 120, or more FPS
• when you select a white vertical line at the tope (see screenshot),is this a single frame ? im confused because in one vertical line i see multiple Player and Editor loops

[steady bobcat]

You can calculate it from the CPU time. e.g. for 16ms -> 1/0.016

[round violet]

i cannot see the frame time (aside inside the timeline)

there is only the frame times of each layer

i thought the profiler would zoom relatively to the min and max frame time it got during the profiling session, like here

[quartz folio]

Unclear what you mean by "here". Do you mean the Timeline view? If you're looking at the hierarchy view you can switch to Timeline using the dropdown on the middle left

[round violet]

by "here" i mean the CPU usage window

between those two profiling session, the "cpu usage" view is zoomed in, relatively to the frame time

33-16ms on the left one and 8-1ms on theright image

[thick terrace]

are you just trying to see the exact frame time of the current frame?

[quartz folio]

It says it in this area bottom middle

If you're clicking on the correct graph

and also if you hover the top area

[round violet]

yeah

[quartz folio]

and also if you select the highlights area in the top left

[round violet]

thanks!

i totally missed that 😅

[round violet]

do you know if there is a way to make the physics debug work for this ?
im also wondering if this also get the inital overlap

welp i think i got half of my answer, OverlapSphereCommand exists

[rocky jackal]

this will give me an array with 4 springs in it right ?

[mellow sigil]

3 springs

[maiden fractal]

indexing starts from zero, count strats from 1

[mellow sigil]

an array with space for 3 springs, if Spring is a class it starts out with 3 nulls

[vestal arch]

count also starts from 0

[maiden fractal]

fair enough

[vestal arch]

indexing starts from 0; but that doesn't change how you count things

if you have 4 springs, you have indices 0, 1, 2, 3

[maiden fractal]

sloppy wording by me

array of size 1 would have 1 inside the braces even if the index of the first and only element is 0 was what I meant

[rocky jackal]

Thank you

[wraith elbow]

Hello guys
After renaming an embedded package, extension functions from are no longer "seen" by Unity/VS with error

CS1061: 'object' does not contain a definition for 'IsNull' and no accessible extension method 'IsNull' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?).

IsNull resides in the renamed package under a namespace DPON.Utils in a static public class Extensions.
The file where this error occurs does have a using DPON.Utils, but it's greyed out, as if nothing from this namespace is used
I'm kind of lost as to what might be causing this. The .asmdef associated with this package seems to be referenced correctly.
Deleting all .csproj files and Reimporting All assets do not seem to do anything...

[thick terrace]

if you write it as DPON.Utils.Extensions.IsNull(whatever) what happens?

[wraith elbow]

Hmm, it says that type/namespace Extensions does not exist in DPON.Utils...
Could it be that the file is somehow not "seen"/referenced by its .asmdef?

[thick terrace]

as long as the asmdef is somewhere above it in the folder hierarchy it should be part of it 🤔

can you see the project for it in your IDE?

[wraith elbow]

Yes

[thick terrace]

how about the platform settings on the asmdef?

[wraith elbow]

Any platform is ticked on both .asmdef containing Extensions and the one using it

[thick terrace]

is there anything else in the package which is working? you could check the manifest/package lockfile to see if it's being found at all

[wraith elbow]

Okay, turns out I indeed screwed up linking assembly references 🙃
Things were in a couple of different packages, and I was not looking in places I should have been looking

[abstract inlet]

helloooo just wondering if my code is particularly spaghetti’d and in need of optimization! not very experienced with coding overall and the code itself works fine without any obvious lag on performance or anything, just want to be sure it’s not detrimental in the long run when more scripts and objects are around

if anyone would like to take a look & has any thoughts / advice for improving the efficiency of it that would be great :]

https://paste.mod.gg/vgbyyofegdof/0

[vestal arch]

in general: worry about perf when it becomes a problem

worry more about the readability/maintainability and structure

[true heart]

from a quick glance I saw you are grabbing the Rigidbody here
rb2d = GetComponent<Rigidbody2D>();
so why are you using GetComponent again in later parts of the code?
GetComponent<Rigidbody2D>().gravityScale += gravityScale;

you should use your rb2d value

in general GetComponent is quite expensive, its alright to use it in Awake/Start but then stick to using that cache variable

[night harness]

nah getcomponents are cheap

just expensive in comparison to caching them

[thick terrace]

more importantly, writing GetComponent everywhere is horrible for readability 😛

[abstract inlet]

fair enough lmao! I cobbled it from a lot of different tutorials late last night so I missed that, thank you!!

I think also because they used to be 2 separate scripts and then I realized I could just put them in the same script and forgot to actually use the variable 💀 like a fool

[night harness]

Why is PlatformTrigger being called with a tiny delay?

[abstract inlet]

I was trying to make it so that if the player dashed but wasn’t colliding with a platform there’d be a little cooldown where the dash velocity wasn’t affected by the gravity change so that they still traveled in a straight line

[night harness]

Ah

[abstract inlet]

that part was tricky because I spent like an hour trying to work with a coroutine & waitforseconds but it just wasn’t working

[night harness]

A Coroutine might be a little more preferable

😛

[abstract inlet]

I tried I promise !! I think what happened when I tried to use the coroutine was that it kind of broke the gravity altogether because it wouldn’t start the gravity unless I had pressed the dash button, and on top of that it slowed the gravity down drastically

There’s probably a way to throw it into a coroutine without causing any other issues but that likely has something to do with how the current code is set up I think so I haven’t figured that out yet

[night harness]

(also you don't need to check this the opposite way as an else if, you can just do an else)

        if(onPlatform)
            rb2d.gravityScale = 0f;
        else
            Invoke("PlatformTrigger", 0.1f);

[abstract inlet]

! I’ll try that later, I think VS kept giving me an error when I used else in general though. It kept thinking that the else needed a ;

[vestal arch]

🤨 could you clarify what you mean by that? what code was triggering that error?

GetComponent<Rigidbody2D>().gravityScale += gravityScale;
this should probably be an assignment, not an addition

also gotta ask - is this supposed to be top-down or sidescroller?

some parts of the code indicate one or the other

[abstract inlet]

gotcha! yeah for some reason the tutorial i was using specified +=

[abstract inlet]

technically a top down, but i modified code i was more familiar with that mightve been more suited to a diff structure

[vestal arch]

what's with the gravity thing then? you wouldn't have gravity in the Y- direction for a top-down perspective

[abstract inlet]

it's sort of like top down platformer? so I still want it to look like it's 'falling' if it misses the dash/jump

[vestal arch]

you usually wouldn't really have jumping as a core movement mechanic in a top-down game

[abstract inlet]

typically not no, i'm just testing around with a prototype to see what sticks! was inspired by Hyperlight Drifter's mechanics at a glance, not a lot of intense platforming but still some dash-jumping from platform to platform if that makes sense

[vestal arch]

like, it's in 2d, right? so jumping and "vertical" movement both go on the Y axis

[abstract inlet]

checks out! to clarify (since i used them interchangeably) it's just dashing forwards for now and not actually jumping

[vestal arch]

ah seems like that's in 3/4 perspective so there is some sense of going in the Z axis

[abstract inlet]

yes! or at least the illusion of it lol

[vestal arch]

yeah lol

so yeah you wouldn't be able to use the same rb movement directly for both of those, you'd have to add some stuff most likely

[abstract inlet]

it seems to work as-is, could you elaborate on what you mean/what needs to change in the current code?

[vestal arch]

well, what do your platform colliders look like? is it just a full boxcollider2d trigger across the entire platform?

[abstract inlet]

yes i think so!

[vestal arch]

so if you "jump" from one platform to another, it should look something like this, right?

but instead, it'd end up being like this, since you're "on" the platform when you enter the trigger

[abstract inlet]

ahhh i see what you mean

[vestal arch]

that illusion of height would have to exist separately from the rigidbody

[abstract inlet]

i've got more of a 'dash' thing going on and i'm not sure if i'll change it to an actual 'jump' yet, so currently it's not noticeable

[vestal arch]

so perhaps an issue for future self lol

but in the meantime - perhaps you just don't need gravity at all

[scenic heron]

can you check distance between objects using raycast?

[naive swallow]

https://docs.unity3d.com/6000.1/Documentation/ScriptReference/RaycastHit-distance.html

Google it next time, it's faster

Literally just "Unity raycast distance"

first result

[abstract inlet]

oh why do you think so?

[vestal arch]

well, what do you need it for?

or is it for falling from the platform?

[abstract inlet]

it is for falling from the platform

[vestal arch]

ahhh i see

[abstract inlet]

either way ty yall for your advice!! super appreciated

[abstract inlet]

oh yes forgot to reply to this specifically, i'm not sure, i don't remember the specific line but else works now so all's well that ends well lmao

[abstract inlet]

hmm ok i know i'm back so soon 😭 but i tried it out again with a coroutine and i'm just not sure why it's not working the same way after following a few tutorials

invoke code
coroutine code

attached videos, invoke example is the first one, working as intended with the red square dropping down very quickly/with a minor delay after dashing, whereas the coroutine one just. Isn't lmao

[vestal arch]

well you're gonna be calling the coroutine every frame you aren't on a platform, that doesn't sound right

should probably just start the coroutine when you dash

and also set the gravity to 0 in the coroutine, before the wait

[hexed fjord]

Invoke has += gravityScale
while Coroutine has = gravityScale

[abstract inlet]

hmm I gave it a shot but I think I'm messing up somewhere https://paste.mod.gg/arlpunilxiuq/0

[hexed fjord]

why did you put it inside the Input.Space section? now it wounld never fall unless you dash

[abstract inlet]

ah yeah i've tested around and while it'd affect the invoke when i change it to = instead of +=, it doesnt change when i do it in the coroutine

[abstract inlet]

beeecause that was the advice lmao

[hexed fjord]

oh

[vestal arch]

the wait would be outside the conditional - you would wait then check

[abstract inlet]

also if i put it at the start instead it 1) functions more or less the same (i.e. not falling at the right speed) 2) it actually no longer recognizes when it's on the platform to set the gravity back to 0 i think

OH i see let me try that

[vestal arch]

also wait i just realized

wouldn't this mean you can't fall off the far side of platforms lol

since you'd "fall" and then end up back in the trigger

[abstract inlet]

uhhh you might have to draw it out for me i don't know what you mean by the far side of platforms lol

[vestal arch]

like the "top" of the platform

[vestal arch]

the side that you go off of at the start of this video

[hexed fjord]

yeah, if you're making a top-down it doesnt make sense to fall in the Y axis

[abstract inlet]

OH that yeah i don't intend on that actually being possible later

like i'll probably put in other colliders or objects to block the sprite from leaving that zone if that makes sense? or at least that's the idea i have atm

using System.Collections;
using JetBrains.Annotations;
using Mono.Cecil.Cil;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{

    public float moveSpeed;
    private Vector2 moveInput;
    public Rigidbody2D rb2d;

    private float activeMoveSpeed;
    public float dashSpeed;

    public float dashLength = 0.5f, dashCooldown = 1.0f;

    private float dashCounter;
    private float dashCoolCounter;

    public float dashCheck;

    private bool onPlatform;
    public float gravityScale = 1f;

    private void OnTriggerEnter2D(Collider2D collision)
    {
        onPlatform = true;
    }

    private void OnTriggerExit2D(Collider2D collision)
    {
        onPlatform = false;
    }

    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
        activeMoveSpeed = moveSpeed;
    }

    // Update is called once per frame
    void Update()
    {
        moveInput.x = Input.GetAxisRaw("Horizontal");
        moveInput.y = Input.GetAxisRaw("Vertical");
        moveInput.Normalize();

        rb2d.linearVelocity = moveInput * activeMoveSpeed;

        if (Input.GetKeyDown(KeyCode.Space))
        {
            if (dashCoolCounter <= 0 && dashCounter <= 0)
            {
                activeMoveSpeed = dashSpeed;
                dashCounter = dashLength;
                StartCoroutine(DelayFall());
            }

        }

        if (dashCounter > 0)
        {
            dashCounter -= Time.deltaTime;

            if (dashCounter <= 0)
            {
                activeMoveSpeed = moveSpeed;
                dashCoolCounter = dashCooldown;
            }
        }

        if (dashCoolCounter > 0)
        {
            dashCoolCounter -= Time.deltaTime;
        }


    }

    private IEnumerator DelayFall()
    {
        rb2d.gravityScale = 0f;

        yield return new WaitForSeconds(0.1f);

        if (onPlatform == false)
        {            rb2d.gravityScale += gravityScale;
        }
        else
        {
            rb2d.gravityScale = 0f;
        }
    }
}

this is where we're at now lol

may be delayed in responses just multitasking on smth else atm

[hexed fjord]

just to cover all possibilities, can you check if you accidentally changed the value of gravityScale on the coroutine script? since its a public variable

[abstract inlet]

alright I checked and it was set to 1, so i experimentally set it to 0 and ran play again juuust in case but now it just kind of works like your typical top down without any fall mechanics which is great but not what i'm trying to do lol

[hexed fjord]

Copied your script into my project and it works just fine with the +=

[hexed fjord]

use this one again and just chnage it to:
rb2d.gravityScale += gravityScale;

the newest would only increase gravity as long as you kept holding space

[vestal arch]

you really don't need to keep adding gravityScale

you don't need to add jerk lol

[hexed fjord]

well, it works, but i think the real issue is moving by setting velocity directly

[vestal arch]

ah yeah true, that should be disabled while dashing

i did notice that but i forgot to mention it 😔

[hexed fjord]

the prob is that it keeps negating gravity's acceleration, that's why constantly increasing gravity makes it act "normal"

the good answer would be to use MovePosition for movement instead i guess

[vestal arch]

not really, no

that would break collision

[hexed fjord]

hmm, thats a tricky issue
i guess just increase gravityScale to 10 or something, that worked for me too

[swift shell]

Question for referencing things via GUID

We're using this for GUID generation:
https://github.com/Unity-Technologies/guid-based-reference

It's really nice to reference things cross-scenes

One small problem: We have a big scene with a bunch of stuff, and I was separating things in prefabs, to prevent file conflicts and better git diffs.

the problem is that GUIDs are only generated in scenes. Which I totally understand why. But the bummer is that if anything in this big scene needs a GUID, it will have to modify the scene. Even if the prefab is only instanciated here once.

Any tips? Maybe there's an alternative way of doing this.

[vestal arch]

or you could just do this lmao

[abstract inlet]

i return! how do i do this lol

[abstract inlet]

yeah doing that didn't have a visible effect unfort

[vestal arch]

basically, save some state to check when you can move.
you could have a boolean for "currently dashing", which you would set when you dash and unset when the dash is finished, and then in the movement portion, you would check for that and only if it's false would you do the normal movement

or for a more extensible system, you could have something similar with a state enum or something like that

[latent latch]

So what's the overall problem? How to modify a prefab instance inside of a scene without having to save the scene? Not likely, but you could consider using a prefab variant to make unique prefab instances while keeping it off-scene.

Variants are surprisingly extra useful when it comes to multiple devs working on the project, otherwise a larger scriptable object workflow works to keep it all just plain data

[abstract inlet]

ok hmmrmgnhm. ill try it out lmao i'm far less experienced in enum states so wish me luck LOL

[vestal arch]

you could just do the first one lol

[abstract inlet]

would it be less efficient in the long run though?

not sure when my little group might get an actual coder on board who could sort any of this out but for the time being i'm just hoping to make it less spaghetti wherever i can

[swift shell]

no, this is about generating GUIDs outside of the scene.

i could modify this addon to let me generate them in prefabs but that will cause more problems elsewhere

[latent latch]

Usually I just use c# GUID if I'm using them at runtime

and generate them upon creating an instance

Otherwise GUID supplied by the AssetDatabase works fine for editor usage

[swift shell]

i need references for specific things inside prefabs. i don't think asset guids cover that

guids that persist forever in disk

an alternative would be to split this big scene into multiple scenes but i'd prefer not to

[latent latch]

Best thing to do then is generate your own IDs then. You can also create prefabs like a PrefabLookup table that incorporates these prefabs

Throw it on a load scene as a singleton to reference

If it's a unique prefab instance then prefab variant or SO instance

[swift shell]

mmm yeah. like i could make a Guid component but for prefabs...

with a big warning like "this prefab should only be instanciated once!"

[rigid island]

enum state just makes it easier to ensure something is in a specific state instead of a bool which could potentially have multiple bools be true when not desired

spaghetti happens more with referencing, not bool/state management

[abstract inlet]

hmm i see. still slightly confused so i'll probably brush up on it later

{

    public float moveSpeed;
    private Vector2 moveInput;
    public Rigidbody2D rb2d;

    private float activeMoveSpeed;
    public float dashSpeed;

    public float dashLength = 0.5f, dashCooldown = 1.0f;

    private float dashCounter;
    private float dashCoolCounter;

    public bool dashCheck;

    private bool onPlatform;
    public float gravityScale = 1f;

    private void OnTriggerEnter2D(Collider2D collision)
    {
        onPlatform = true;
    }

    private void OnTriggerExit2D(Collider2D collision)
    {
        onPlatform = false;
    }

    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
        activeMoveSpeed = moveSpeed;
    }

    // Update is called once per frame
    void Update()
    {
        if (dashCheck == false)
        {
            StartCoroutine(Movement());

        }

        if (Input.GetKeyDown(KeyCode.Space))
        {
            if (dashCoolCounter <= 0 && dashCounter <= 0)
            {
                dashCheck = true;
                activeMoveSpeed = dashSpeed;
                dashCounter = dashLength;
            }

        }

        if (dashCounter > 0)
        {
            dashCounter -= Time.deltaTime;

            if (dashCounter <= 0)
            {
                activeMoveSpeed = moveSpeed;
                dashCoolCounter = dashCooldown;
                dashCheck = false;
            }
        }

        if (dashCoolCounter > 0)
        {
            dashCoolCounter -= Time.deltaTime;
        }

        if (onPlatform == false && dashCheck == true)
        {
            StartCoroutine(DelayFall());
        }
        else
        {
            rb2d.gravityScale = 0f;
        }
    }

    private IEnumerator DelayFall()
    {
        yield return new WaitForSeconds(0.1f);
        rb2d.gravityScale += gravityScale;
    }

    private IEnumerator Movement()
    {
        yield return null;
        moveInput.x = Input.GetAxisRaw("Horizontal");
        moveInput.y = Input.GetAxisRaw("Vertical");
        moveInput.Normalize();

        rb2d.linearVelocity = moveInput * activeMoveSpeed;
    }
}

current code looks like this + the dash & player are moving fine but they're not detecting the platform/gravity isn't 'activating' when they're off the platform

my laptop is also low on battery and i don't have a charger so i will resume work on it later ty for everyone's help so far!

[robust dome]

<@&502884371011731486>

[sleek bough]

!ban 1143311282108379216 ad spam

[tawny elk]

aeirik. was banned.

[vestal arch]

Movement doesn't need to be a coroutine here

in fact it delays the logic by a frame lol

[swift shell]

anyway, thanks for the help @latent latch 🙂

btw, what did you mean by this? i don't think i understood

You can also create prefabs like a PrefabLookup table that incorporates these prefabs

[abstract inlet]

OUGHH yeah ok when I get more laptop power I’m gonna go sniff around unity learn again

[vestal arch]

also you never need x == true or x == false, you can just use x or !x respectively

[abstract inlet]

oh I did not know that

[vestal arch]

also @abstract inlet am i understanding it right that you want gravity to not apply during the dash?

[abstract inlet]

so like. just the bool’s name default true? and then !name is false?

[abstract inlet]

yess

[vestal arch]

then why isn't that coupled lol

[vestal arch]

no, that's not how variables work
when you access a variable, it evaluates to its value, and that value's type matches the variable's type
booleans are yes/no for computers, so conditionals always use booleans
==, !=, >, <, >=, <=, these are all relational operators that evaluate to booleans

[abstract inlet]

uuuu i don’t know what that. Means.

[vestal arch]

the logic for disabling gravity and the logic for dashing is separated, even though they should be logically linked

[abstract inlet]

oh I see what you mean. But gravity should also function even if the dash button is not pressed (like if the player just walks off the ledge)?

[vestal arch]

so instead of that separate coroutine with a random 0.1s delay, you would disable gravity when you dash and reenable it when the dash ends

[abstract inlet]

oh I’m not sure what you meant with “also you never need x == true or x == false, you can just use x or !x respectively”, could you clarify?

[vestal arch]

i'm not suggesting to link gravity as a whole with dashing, i'm referring to specifically disabling gravity during the duration of the dash

[latent latch]

I was just saying if you were having trouble referencing prefabs cross scenes you can make a singleton prefab manager, but I misunderstood you and this isn't a cross-scene reference problem

[vestal arch]

-# on that note, shouldn't dashLength be dashDuration?

[abstract inlet]

OH so like just directly changing the float value (?)

[vestal arch]

for any bool x: x, x == true, x != false are completely equivalent, and !x, x == false, x != true are completely equivalent

[abstract inlet]

in my defense I was following a tutorial for that lol

[vestal arch]

you're already directly changing the value...?

[abstract inlet]

isss that not how I would disable gravity during the dash?

[vestal arch]

    void Update()
    {
***     /* elided */

        if (Input.GetKeyDown(KeyCode.Space))
        {
            if (dashCoolCounter <= 0 && dashCounter <= 0)
            {
                dashCheck = true;
                activeMoveSpeed = dashSpeed;
                dashCounter = dashLength;
+               rb2d.gravityScale = 0f;
            }

        }

***     /* elided */

-       if (onPlatform == false && dashCheck == true)
-       {
-           StartCoroutine(DelayFall());
-       }
-       else
-       {
-           rb2d.gravityScale = 0f;
-       }
+       if (!dashCheck)
+       {
+           rb2d.gravityScale = onPlatform ? 0f : gravityScale;
+       }
    }

-   private IEnumerator DelayFall()
-   {
-       yield return new WaitForSeconds(0.1f);
-       rb2d.gravityScale += gravityScale;
-   }

[swift shell]

pristine diff display

[abstract inlet]

WOAH

I’ll be sure to try it out later tysm you didn’t have to plug it all out like this

[leaden ice]

Wow discord handles diffs properly apparently

[somber nacelle]

yeah you can use diff as the language code for a code block

[shadow wagon]

woah that diff looks sick!

[rustic rain]

does unity have a way to draw a an arrow in debug?

[shadow wagon]

Debug.DrawLine() is the most convenient

it doesnt have an arrowhead, so its not a true arrow but for debugging purposes that doesnt matter too much

[rustic rain]

i see, thank you 😄

[shadow wagon]

its a real shame the options for visual debugging is so limited, I think that there's a lot of power that could be gained from it

[rigid island]

handles give you a bit more options / control

https://docs.unity3d.com/6000.1/Documentation/ScriptReference/Handles.html

[shadow wagon]

I've used Handles.Label quite a lot, its incredibly helpful!

being able to read values as text in the scene, instead of having to constantly flip back and forwards between the game and the console, its a very good thing

[steady bobcat]

vertx offers more tools, including a better text label https://github.com/vertxxyz/Vertx.Debugging

[round violet]

i assume that update transforms is slower if my object has a parent ?

[hexed pecan]

What do you mean with "update transforms"?

[wheat spade]

I have a pawn/controller communication system that uses Scriptable Objects. Each action a controller communicates to the pawn, "jump" for example, is an instance of "ScriptableAction". When a controller wants the pawn to jump, they have a serialized variable of type ScriptableAction, assigned with the jump asset in the inspector, and they call jumpAction.Invoke(). Every pawn that does something on jump would likewise have it's own variable and do jumpAction.AddListener(). The current system I have is pretty good and is perfect for AI controlled pawns.

I'm having trouble connecting the player's input to this system though. Should I have the player controller have a function for each action and connect it to the InputSystem, or somehow have all that logic in the scriptable object? I would prefer if I don't have to edit a c# class just to have my game start receiving input.

[lean sail]

this whole communication system through scriptable objects sounds extremely unnecessary.
to answer your question though, you would usually want to have your input handled in one place. then you just need to call the methods you want. Im not sure what your player controller is, or how these scriptable objects are set up, but this does sound like a very awkward scenario because of how you are using SO's here.
also no clue what "prefer if I don't have to edit a c# class just to have my game start receiving input" means. You can use the new input system but some class somewhere has to actually receive and process the input.

[vestal arch]

discord uses highlightjs which supports a ton of formats, can google it

[pure ore]

Got a question. My character is still moving fast, but isn't the point of setting m_MoveDirection to its normalized self multiplied by the current speed supposed to make the player move slow?

Vector3 vector = transform.forward * MovementInput.y + transform.right * MovementInput.x;
m_MovementDirection.x = vector.x;
m_MovementDirection.z = vector.z;
if (MovementDirection.z > 1f)
{
    m_MovementDirection.z = 1f;
}
else if (MovementDirection.z < -1f)
{
    m_MovementDirection.z = -1f;
}
if (MovementDirection.x > 1f)
{
    m_MovementDirection.x = 1f;
}
else if (MovementDirection.x < -1f)
{
    m_MovementDirection.x = -1f;
}
m_MovementDirection = m_MovementDirection.normalized * CurrentSpeed;

[cosmic rain]

normalization just guarantees that the vector has a length of 1. It's not supposed to "slow" anything.

[pure ore]

Well everything feels fast. Even with low float variables

[cosmic rain]

Must be your CurrentSpeed then.🤷‍♂️
Or whatever you do with m_MovementDirection later on.

[pure ore]

so maybe debug it? Okay

[lean sail]

on top of what dlich said, the whole if statement logic in the middle isn't needed at all.
your error might not even be related to this code. it could be pretty much anywhere in regards to how you move, like maybe you arent using deltaTime

[pure ore]

yeah im not but if I do it makes the player move EXTRA SLOW

like at a snail's pace

[lean sail]

you probably changed multiple things then at once and are associating the wrong thing to this problem. you are normalizing the vector and multiplying by speed. it doesnt matter what you do to this vector beforehand. If it is not the zero vector, it's length will be CurrentSpeed at the end

the only thing those if statements are doing is limiting the directions you can actually move

[pure ore]

Alright I fixed it. I removed the if else normalization, made CurrentSpeed *= 0.7f and added Time.deltatime

[lean sail]

you need the normalization though...

can you paste the whole context !code

[tawny elk]

Posting code

📃 Large Code Blocks

Use links to services like:
https://paste.mod.gg/, https://hastebin.skyra.pw/, https://paste.ofcode.org/, https://paste.myst.rs/, https://scriptbin.xyz/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[pure ore]

https://pastebin.com/CETsAcWx

[lean sail]

ok there are definitely a few things here to address. you shouldnt be calling move multiple times per update. have one vector that is the sum of all the movements you want, then call 1 move at the end of your logic. in that final move call, thats where you should be multiplying by time.DeltaTime.
what you had before with the normalization was fine
m_MovementDirection = m_MovementDirection.normalized * CurrentSpeed;
i also dont really see why that 2nd move is needed, it looks like a bandaid solution that should just be removed

what you're doing now with multiplying by Time.deltaTime is making the x and z movement frame independent, but not the y because you are setting the y value after

[pure ore]

Okay but now my player can't jump

[lean sail]

then that would imply you arent properly summing all the movements you want into one final vector

[pure ore]

WAIT I know why

its because I don't have the player layer

[lean sail]

the only thing i see for jumping is that you're setting m_ActiveGravity += m_JumpForce * 0.11f; (which is a magic number here, you shouldnt need this random 0.11f here)
you have to account for this in your movement

[pure ore]

I do need that .1f. I tried deleting it and I went high in the air

idk how but i did

[lean sail]

you're still associating the wrong thing to this problem here. you never need magic numbers

if it went high, thats likely because deltaTime wasn't factored in

[wraith spear]

Hi all, I'm working on a turn-based RPG and transitioning from battles in the overworld (Chrono-Trigger, Sea of Stars, etc.) to a separate scene (Pokémon, old Final Fantasy, etc.). However, I'm scratching my head a bit on how to pause the overworld scene while the additive combat scene is running. Any advice would be much appreciated!
After some research, I seemingly have 3 options:

• Implement something like IPausable and use that to pause the overworld classes (most work, but feels like highest degree of control. Leaning towards this one)
• Set everything to-be disabled as a child of a single GameObject and disable that (least work, feels a bit wrong however)
• Unload overworld and reload it based on a previously saved state (feels like a middle ground of work needed but with a big risk of headaches later on in development)

Did someone implement something like this at some point? What were your experiences?

[wicked scroll]

Maybe this is unhelpful with how deep you already are, but I would suggest a variation on #1, where your overworld acts as a 'parent' and ticks the 'battle' world (or you have some intermediary parent of both, up to you) and so is the arbiter of whether/how much each should be active. This also lets you have them talk back and forth pretty easily if you need stuff to happen in the overworld in response to the battle (flags being set, achievemnts being tracked, whatever)

it's nice to be able to load the battle scene independently for testing, so having it act as its own environment but also be 'embeddable' is one way to do that

[wraith spear]

All of the shared code like the party data is being handled by a bootstrapper that is always loaded, so I don't think that it would add a lot to always load them both, aside from faster loading times. Because of that, I think the greatest "pro" isn't really used

[wicked scroll]

I'm not sure what that means? I guess I'm mostly suggesting that you manually tick your battle so that you can just not do that instead of having to implement some kind of pausable interface everywhere

well your world, but really both

you probably want the world simulation to still run to some degree, just a lesser one

or maybe not, I guess in a battle usually the world is fully paused...but it's nice to have the option in case it comes up

[wraith spear]

The world would be fully paused, and the two should exist as separate entities. They use different sprites as well. I'm afraid that allowing "overlap" will muddy the code base, as I'll have to think of everything that's loaded when making changes to both overworld and combat code.

[round violet]

edit the position, rotation or scale of a transform

[outer plinth]

Hello everyone, I am attempting to Intersect a mathematical representation of a sphere (SDF) on the GPU with a ray from the GPU, however, when I assign the texture to my primitive in scene it seems as though the UVS are not wrapped correctly, anyone got any ideas?

[round violet]

is there a curve type which has a curve editor in the inspector that can support N curves inside ?
the only curve type i know that accepts more than 1 is the MinMaxCurve one (locked to 2 curves)

[tribal monolith]

Hello, sorry if this is not the channel for this question, however:
I am working on a project, where I try to emulate a user's desktop as closely as possible and right now I need the System.Drawing library for getting icons and some other stuff.
For this to work I have switched my "API Compatibility Level" to .NET Framework from .NET Standart 2.1.
The only platform I plan to support is Windows.
Is this an okay solution?

The other solution I had is to just call a new process -> powershell

[violet nymph]

Changing the API Compatibility level should be completely fine as long as everything still works, but that's on you to check

[grizzled ferry]

Hey, I know this is absolutely subjective but is it standard to have a comment explaining the method inside, or should it be just before its definition?

[tribal monolith]

Aight, thank you so much!

[grizzled ferry]

i mean, would you say this is a better option?

[violet nymph]

Personal preference, whatever works for you, there's no "better option", honestly in the method sounds better to me, others might prefer on top of it, really about what you find better

[grizzled ferry]

alr, thank you for your opinion and advice!

[tribal monolith]

I apologize for another tag, but I just need to confirm that using libs like Windows.Win32 and aforementioned System.Drawing is completely fine as long as it works?

[violet nymph]

It should be

[tribal monolith]

Okay, thank you so much!!

[eager tundra]

the standard is to have a method summary https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/xmldoc/recommended-tags
most IDEs will be able to read and provide functionality on top of it

[tribal monolith]

Hello, I am trying to extract icons form some files and for debugging save them in a file.
When I put this in powershell, it works
[System.Drawing.Icon]::ExtractAssociatedIcon(*file*).ToBitmap().Save(*saveFile*, [System.Drawing.Imaging.ImageFormat]::Png)
however when I try to do this in Unity
Icon.ExtractAssociatedIcon(*file*).ToBitmap().Save(*saveFile*, ImageFormat.Png);
It will save the icon as a random picture

Does anyone know why this happens?

[steady bobcat]

wtf thats the mono logo

[next heath]

how do y'all prefer using attributes? (number 2 is me)
1:

[HideInInspector]
public bool CertainlyABoolean = true;

2:

[HideInInspector] public bool CertainlyABoolean = true;

[rigid island]

usually 2 for fields though, for serialzable class for example I prefer 1.

[next heath]

additionally for me, if i'm using unity's [Header] attribute i prefer using number 1

[rigid island]

yeah 1 is preferable for other inspector attributes like Range, Header,ContextMenu etc.. I guess I only use 2 for SerializeField now that I think about it..

[steady bobcat]

No 1 all the way

[abstract inlet]

i return again! I was wondering, what does rb2d.gravityScale = onPlatform ? 0f : gravityScale; mean? Like syntax/purpose-wise, with the "?" and ":" between onPlatform & gravityScale? thank you!

[vestal arch]

it's called a ternary or conditional operator (ternary referring to its 3 operands)
it's basically a short version of an if/else
that example there is equivalent to:

if (onPlatform) {
  rb2d.gravityScale = 0f;
} else {
  rb2d.gravityScale = gravityScale;
}

[abstract inlet]

oooo i seee

[abstract inlet]

thank you very much for your help!! the script's been ironed out i think :]

[lucid brook]

does unity have C# 11 support?

damn

So next question, does anyone know of a way to do something like this in C# 9?

List<int> list = new List<int>() { 9, 6, 5 };
switch (list)
{
    case List<int> _ when Test is [9, 6, 5]:
        print("Do thing");
        break;

    case List<int> _ when Test is [2, 4, 8]:
        print("Do different thing");
        break;
}

[chilly surge]

You just have to write it out the old fashion way.

[lucid brook]

Damn, and here I was thinking I could be fancy about it.

[chilly surge]

Similar code can work if you can change it to a tuple.

[lucid brook]

a tuple?

let me google that one lol

no I don't think that is going to work for what I'm doing

[chilly surge]

What are you doing?

On mobile, but you very well could write similar code with tuple:

if (list.Count == 3)
{
  switch ((list[0], list[1], list[2]))
  {
    case (9, 6, 5):
      // ...
      break;
    case (2, 4, 8):
      // ...
      break;
  }
}

Better yet if you have the 3 elements already then you don't need the list at all just to do pattern matching.

[lucid brook]

oh? ok I misunderstood the use case for tuples. that totally works

[lucid brook]

what do you mean by this?

[chilly surge]

You haven't explained what you are trying to do at all so we don't know what the list is for.

What I meant was that, if your idea was "I have three numbers and I want to check them, so I make a list then use pattern matching for it" then you wouldn't need that list at all, just use a tuple.

[lucid brook]

I am playing around with a VR combat idea, a lot of games do a full physics thing with active ragdolls but I want to go a different route. I was thinking of giving the player 3 areas to punch on an enemy, stomach, chest and head. These will kinda act as buttons the player presses/punches and based on which order they punch them in they get a different follow up attack.

Like: stomach > chest > head will trigger an uppercut

So I use the list to add a specific input like 2 (for the chest) and start a timer that removes that input from the list after a set time

if the list contains 3 items I check what they are and trigger a special attack

[chilly surge]

Sounds like you already have a list, then yeah makes sense to want to use pattern matching on it directly.

But yeah Unity is still on C# 9 so no collection patterns, but you can do the tuple thing.

[lucid brook]

yeah that works great. before today I had just never heard of tuples.

but thank you for the help!

[chilly surge]

(Maybe consider using a queue instead of list, although it's pretty minor)

[swift falcon]

Did i do this right

idk if im slow but im not able to look around still would i have to mess with inputs or smt of the sort

[rigid island]

mouse inputs should not be multiplied by delta time

[swift falcon]

Ahh so get rid of that then or change it

[rocky steppe]

Hello!

I had a question.

I have a question, I'm trying to learn C# & Unity and then blender, I'm doing all of this for VR application based development for psychology and mental health applications. I come from a Java based background, I know in Java all of structured programming and very basic OOP, also I know C# structured programming, I have a course that I payed for from Code Monkey, this I go through learn C# & Unity and have him teach me VR application in Unity, I was wondering with my expereince I'm doing this 3 hrs/day and in two weeks or so could I write proper code, knowing where to start, of course I'll have to use Google for errors, but for anything else. Also, can someone also send me the best VR Unity Course. In a week or two I would want to be able to work on mini-projects and planning on writing the pre-draft of my project.

Thank you.

[rigid island]

yes thats what should not be multiplied means, you remove it

[swift falcon]

thanks nav

[ocean hollow]

There is a dedicated #🥽┃virtual-reality channel, so you're aware

[rocky steppe]

Thank you sir.

[vestal arch]

check out !learn for resources

[tawny elk]

:teacher: Unity Learn ↗

Over 750 hours of free live and on-demand learning content for all levels of experience!

[lone turret]

Unity allows you to make custom geometry for sprites via Sprite.OverrideGeomerty and allows you to set custom uvs for said geometry by Sprite.SetVertexAttribute. But unless I'm missing something unity won't let you create a sprite with a rect outside the bounds of its texture, which could be a completely reasonable thing to do if you're using custom uvs.

The only working solution I have to this is making a larger texture with a bunch of wasted space so it fits my rect. Is there any way I can manually set the sprite rect? This has to be a sprite unfortunatly, I can't get away with a mesh

[steady bobcat]

you can set the sorting layer on mesh renderers too so im not sure what other functional differences a sprite renderer has

[round violet]

im using ScreenPointToRay with a camera and im wondering how i should make overlay UI block the raycast

[placid summit]

has anyone done runtime node editors?There is UnityRuntimeNodeEditor on github I looked at but it is very limited out of the box, a starting point perhaps

[thorn crane]

how to create main menu ?

[rigid island]

surely there is plenty of tutorials on this subject...
Unity UI + A script that manages the actions on buttons

[rigid island]

you try this
https://docs.unity3d.com/2018.1/Documentation/ScriptReference/EventSystems.EventSystem.IsPointerOverGameObject.html

[round violet]

doesnt seem to work, at least when called in a input action callback

[rigid island]

has worked for me before, show what you tried / setup. If anything use the actual raycast from event system and check the results

[round violet]

i have a input action that fire an event on Touch
i get the touch position with Input.GetTouch(0).position
then i use this to get what i hit

Ray ray = cameraRef.ScreenPointToRay(screenPosition);
if (Physics.Raycast(ray, out RaycastHit hit))

what i simply added is a if (!EventSystem.current.IsPointerOverGameObject()) before calling the raycast code

i get this warning Calling IsPointerOverGameObject() from within event processing (such as from InputAction callbacks) will not work as expected; it will query UI state from the last frame when i touch, but since it queries the UI of last frame it should still work since its not moving

[eager tundra]

I think you want to use a GraphicsRaycaster there, not Physics.Raycast

[rigid island]

maybe youcan do something like this ?

private List<RaycastResult> uiRayResults = new();
    bool IsPointerOverUI()
    {
        PointerEventData eventData = new(EventSystem.current);
        eventData.position = Input.mousePosition;
        EventSystem.current.RaycastAll(eventData, uiRayResults);
        return uiRayResults.Count > 0;
    }```

[round violet]

i still have to raycast for my thing, but i want to prevent it if the user clicked on the UI and not in the world

[steady bobcat]

Re use 1 list but the example above should be good

[rigid island]

ya just make list a field

[eager tundra]

yeah, nav's example should be good
but UIs won't block Physics.Raycast

[round violet]

yes thats why i need something else before

[steady bobcat]

Yea, the example above. You have to use that to first check if the screen pos would hit anything in the UI before continuing with your physics raycast.

[round violet]

perfect, thanks

(it works)

[steady bobcat]

🙏 plz make sure you change it to use 1 list instead of a new one each time

[round violet]

wdym by that ?

[rigid island]

i will change the example just incase someone else takes it lol

[round violet]

oh okay

[rigid island]

make results a field so it doesn't create a new list each time

[round violet]

saw it

unity could of make it an out as well

while we are at it, what should be the proper way to scale a touch delta with screen res ?

[rigid island]

:\ was hoping an array version RaycastAllNonAlloc like Physics one

[steady bobcat]

out means nothing here, its a ref pass anyway
The point is to not do new List() each call

Its already designed to avoid pointless allocation

[hexed pecan]

If it returned an out list then would always make a new list so it's better to have it passed in to avoid allocation

[round violet]

you could still pass a list made outside the function scope ?

[hexed pecan]

It would allocate a new one and replace it

[round violet]

fwiw, im used to c++ & out params, not sure if in c# its the exact same behavior

[steady bobcat]

Yea we cant heap allocate and then delete it right after 😭

[round violet]

i guess my understanding of the out kw wasnt the correct one

[steady bobcat]

a class can be thought of as a pointer always to some heap memory

e.g. List<string> is std::vector<std::string>*

[round violet]

yeah i always hated the c# synthax for that

[vestal arch]

(c# doesn't have syntax for that?)

[round violet]

i dont like having some implicit stuff like that

let me type * or & if its a ref or ptr

[vestal arch]

ah, gotcha, yeah

[steady bobcat]

there is stackalloc which can be used with Span<> to allocate on the stack instead but its limited in use

[vestal arch]

higher level languages tend to do that
less for you to control, more implicit stuff

[steady bobcat]

managed languages you mean

[vestal arch]

it becomes more about ref vs value types rather than like, direct values, pointers to the stack, pointers to the heap

[vestal arch]

i mean more broadly, just in general

memory management is just one aspect of that

[steady bobcat]

true true

[round violet]

well neverminded i switched out and ref here

i dont know if ref on classes or list are allowed

since it seems that its implicit

[vestal arch]

pretty sure not, since they're, yknow, already refs

[hexed pecan]

You can use ref with classes

[vestal arch]

ref is used for value types

[hexed pecan]

For example it can replace a reference from the calling scope

[somber nacelle]

it's just mostly pointless with a list since that can just be cleared and Add called in it which is going to be cheaper than allocating a new list (at least memory wise)

[hexed pecan]

I do have some methods that allocate the list if a null one is passed in

[vestal arch]

oh so ref is basically just a & from the caller and a * from the callee (in c/c++ terms)

[hexed pecan]

But mostly yeah what boxfriend said

[round violet]

why a ptr ?

ref must be valid in c# to ?

[vestal arch]

i mean ref in c# is the equivalent of passing in a variable pointer in c/c++

like you would for scanf

[atomic comet]

Hey all, I'm trying to find all the cameras in my scene and sort them lexicographically, FindObjectsByType seems to be working as it should but the sorting doesn't result in what I'm looking for, would anyone be able to point me in the right direction? Cheers

[round violet]

yeah it was mb, i forgot that list are passed by ref implicitly

[round violet]

sorting is by instanced id, completely unrelated to gameobject name

[hexed pecan]

For example... ```cs
private List<int> list = null;

void A()
{
InitOrClear(ref list);
// Do stuff with list
}

void InitOrClear(ref List<int> list)
{
if(list == null) list = new();
else list.Clear();
}```

[round violet]

is there any other keyword for the ref & keyword in c++ for c# ?

having some functions know they have a valid ptr would be cool 🥲

[vestal arch]

not that i know of
"reference type" in c#, java, js, etc is what c++ would call a pointer type, with no equivalent to c++'s "reference type"

[round violet]

sad me

[eager tundra]

you can probably use nullable references to help with that

[vestal arch]

would that work with unity

since unity has a fake nonnull thing

[eager tundra]

yeah, there's this pitfall with Unity objects

[steady bobcat]

Yea just dont. Use nullable with value types and thats it.
New c# does make nullability more obvious and something you can require or not.

[void ledge]

Hello guys. I am trying to create a third-person controller by following this tutorial:
https://www.youtube.com/watch?v=YiNCqmAF3Lc&list=PLD_vBJjpCwJsqpD8QRPNPMfVUpPFLVGg4&index=4

Everything is working fine except for the animator. For some reason, when the character switch from idle->run, it would work for the first few second after I press play, then stop working and stuck at the beginning of the run animation.

I checked the value from the BlendTree and noticed the value kept changing in e-10 scale (e.g. 3.564695e-10). Not sure whether this is the cause or now. I would really apperciate if anyone can provide some advice regarding how to fix it🥹

[steady moat]

Is the animation looping ?

[vestal arch]

those values are basically 0

[primal gale]

can I make an A* AI system that would work across different simple 2d maps or would I have to manually create a system for each scene?

[somber nacelle]

you can make anything you have the skill to make

[steady moat]

You can if you do it intelligently

[primal gale]

luckily I have the intelligence of a newborn baby

time to get coding

[steady moat]

I mean, do you even know where to start ?

[primal gale]

no

I might aswell try to learn through brackeys for the things I dont know such as AI

ill give it a try

[steady moat]

I do not think you will find anything about creating A* through multiple level though.

It would be more effient to find an alternative solution

[vestal arch]

i don't think that's what they're asking about?

a system that works across multiple scenes, not works through multiple scenes

[steady moat]

What is the difference ?

[vestal arch]

i don't think he's asking about navigating like, across scene transition boundaries

[primal gale]

yeah I just want to have a system where I do not need to manually place waypoints or whatever through rooms

[vestal arch]

just a single system that works in multiple scenes

[primal gale]

probably gonna use a navmesh

[vestal arch]

oh yeah no you'd still need some way to inform stuff about what they can do

whether that's a navmesh or waypoints

[primal gale]

so lets say I implement a navmesh, would I still have to draw waypoints around simple obstacles?

like lets say I literally just had a box with a smaller box inside as an obstacle, I would need to place waypoints on all corners or something like that to contain the navmesh

Im probably gonna read up on AI and navmesh or whatever because it seems quite interesting I just know nothing about it yet

[vestal arch]

idk about navmeshes tbh

wouldn't you just not have the navmesh over that inner box

[primal gale]

I think so

from working in 3d I know it will shape itself according to the environment

havent tried it in 2d but surely its even simpler

[somber nacelle]

note that unity's navmesh does not work for 2d out of the box, but there are assets that make it work

[primal gale]

Ive used waypoints before for a simple enemy that will crawl around a box but for this I want my flying enemy to be able to move past obstacles in the way of the player

[steady bobcat]

https://github.com/h8man/NavMeshPlus

[primal gale]

Ok one more thing, I'm using Cinemachine to add screen shake to my game, and I want to use it for multiple different things. Lets say I shoot something then my screen will shake based on the cinemachine attachment I got on me player, if I wanted different screen shake for each mmovement thing how can I directly change the variables on cinemachine so its different?

[void ledge]

Not really

it just stuck at the same pose

Stuck like this wherever or however I move it. It is now either idle or move with this pose

[steady moat]

Check if you set the animation to be looping.

[void ledge]

U mean this property when I am importing the animation?

Sorry I am new to Untiy so I am not exactly sure...

[steady bobcat]

"Loop time" = plz make my anim loop

you can easily debug this stuff by selecting the gameobject with the animator at runtime + observe the animator states (in animator window)

[void ledge]

ohhh

no wonder

I go it working now! Thank you both of you for helping me!!

much apperciated!

[vestal arch]

@primal gale fyi, physics layers are a thing if you haven't heard of them

[primal gale]

layers are too scary

[vestal arch]

(if it makes sense for your usecase)

[primal gale]

I fixed it anyways

[vestal arch]

there's not much to them

it's basically categorizing objects

[primal gale]

yeah but you can only have 1 layer cant you

[vestal arch]

then you can say "i don't want these 2 kinds of things to interact"

[vestal arch]

on each object? yeah

[primal gale]

ill give it a try