archived-code-general

[void quiver]

can anyone point me in the direction of a good compute shader resource? I've been looking through some for the past week and just can't seem to grasp it. I'm trying to get a marching cubes implemented with them just for the sake of learning something new and it's been a brick wall.

and maybe I'm just trying to do too much

[leaden ice]

This is the one that made it click for me
https://toqoz.fyi/thousands-of-meshes.html

it also involves some neat rendering stuff but there's a compute shader that does all the moving of the objects

[void quiver]

oh very cool, I'll check it out, thank you

[nova moon]

I have a question about subscenes. I'm really early in my project, an rts, and I decided to make the switch to DOTS before getting too far along and having to deal with it later. When reading the ECS workflow on Unity docs, it talks a bit about sub scenes, it seems like this is great for streaming scenes for performance vs loading a giant scene. So, my question is, if i'm just working in a test scene right now, and not building anything out with the environment or anything like that yet, I'm assuming I don't need to worry about sub scenes yet then?

[high schooner]

Not sure if anyone would like to take a try at my problem but any help is much appreciated. I have a script rotates the camera holder, head, to simulate recoil. When I attempt to shoot while the camera is rotated, the bullet hits where you were first aiming, even if the head was rotated up. I dont know if it is an issue with my projectile calculations (5th image attacked), but I find that unlikely as it is able to hit where you are initally aiming. If any more information is needed I would be more then happy to attach it

[knotty sun]

Someone might like to take a try if you posted your code correctly

[high schooner]

So do you plan on helping or being bitchy?

[heady iris]

!code

[tawny elk]

Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

[heady iris]

The least you can do is to post code in a way that is easy for other people to read.

[knotty sun]

now, not a chance

[worthy willow]

Hey, I'm trying to call DestroyObj(); from multiple children objects from another script on this script. If I do GetComponentInChildren<> it works but only to one of the objects. I tried doing GetComponentsInChildren<> but I got an error. Any help?

[mystic yoke]

what is DestroyObj

[knotty sun]

yes, because getcomponents returns an array

[mystic yoke]

also that

you need to iterate the array and call DestroyObj on each item

[worthy willow]

Its on another script.

[worthy willow]

the [] thing?

[mystic yoke]

yes, that is the syntax for an array literal

[heady iris]

you can't just stop at "I got an error"

[mystic yoke]

GetComponents returns an array

[heady iris]

that's not useful

you got an error because you tried to call DestroyObj on a RecipeItem[]: an array of recipe items

[heady iris]

the [] syntax is used to get a specific item from an array

you can iterate over an array with foreach

foreach (var num in numberList) {
  Debug.Log(num + 1);
}

[dawn nebula]

I have a projectile whose rigidbody's collision detection is set to "continuous dynamic" moving through a trigger at high speeds. The trigger does not seem to react consistently. Any tips?

[worthy willow]

wait I think I figured it out now

give me a minute

Awesome! it worked!

Thanks guys

[mystic yoke]

@worthy willow as a general tip, if something is acting differently than you would expect, the best first step is to read the documentation. Doing that would have told you that it returned an array, not an individual item

[heady iris]

(and to look at the error message)

[mystic yoke]

that too

[worthy willow]

Will do. thanks for the advice

[mystic yoke]

but it helps to read the documentation to better understand what the error message may be telling you

[dawn nebula]

Apparently continous collision just doesnt work with Triggers. Why?

[lean sail]

what are u using continous on? Triggers are not a physical interaction

[dawn nebula]

high speed projectile

[lean sail]

try Continuous Speculative then if u dont need very very precise collisions

which bullets are too fast to see anyways

[dawn nebula]

According to unity forums triggers just dont care about continous anything. Which I guess makes sense? If you hit something physical you're stopped, continous collision makes sense there, but if you're moving fast enough, you can obviously just... jump over the trigger completely in a single physics frame.
Then what do you do? Fire OnTriggerEnter and Exit at the same time? Does Stay go off?
It's definitely weird.

[mystic yoke]

you can raycast the velocity against triggers

as a workaround

[void basalt]

@dawn nebulaRaycast between your projectile updates for hit detection.

Not only is this much more performant than running actual physics bodies, but it's going to be much more accurate.

[dawn nebula]

ya it just changes who is doing the thing

as opposed to some arbirary trigger finding a thing and doing something, it's the projectile who does the search

and that's kinda annoying

[void basalt]

Everyone does projectiles this way. It's pretty much the standard.

You just can't rely on physics engines to perform hit detection on tiny bullets moving at 500 meters per second

It's never going to happen

[dawn nebula]

so should i do a raycast, getcomponent for some component I created and then call some method there?

[latent latch]

I've seen stuff where you'd also raycast behind if it's traveling too fast

rigidbody stuff does work though for high speed projectiles

[void basalt]

If the projectile is large enough, it could work

I still wouldn't rely on it

[void basalt]

You should have a class for your bullets. These classes can have behaviors such as CheckHitDetection()

where you bake the raycast behavior into it, and it returns a valid hit or not

If you remove rigidbodies from your projectiles completely, and move them manually using Transforms, you can get really nice performance

[dawn nebula]

I know that Unity has methods to raycast an entire collider shape as opposed to just a ray

[void basalt]

It depends on your projectile. Generally raycast is fine for little bullets

for a rocket, a shape cast would probably be better

[dawn nebula]

Hmm. Question then.

Right now I have a "gravity zone" that's a script with ontriggerenter/exit. Pretty massive collider usually so unless something is moving at ludicrous speeds I doubt it would miss it.

The point of this object is to tweak the velocity of any rigidbodies in its trigger by some value ever frame.

If it's the projectile itself that's handling the enter/exist of triggers, how do I cleanly replicate this behaviour?

[void basalt]

Yeah you'll probably want rigidbody projectiles for this then.

Whenever something enters the trigger, just check if it's a bullet. If it is a bullet, just disable the gravity for that bullet or whatever you're doing.

[dawn nebula]

I mean I'm doing that already. It's just I want these bullets to both interactwith potentially giant gravity zone triggers and also have sorta small hurtboxes to do damage to things it hits.

Guess I can just do both?

normal triggers for the gravity zones and raycasts for the hits

[void basalt]

If the gravity zone hitbox is really large, you don't really need to worry about it missing

the hit detection I'm talking about is for hitting thin walls, players, NPCs, etc

[dawn nebula]

it's like a couple dozen unity units

so like

[void basalt]

you'll probably be fine

[dawn nebula]

probably fine

@void basalt For the calclation then should you project FORWARD into the next frame or check what you passed through last frame. i assume the former?

[leaden solstice]

If determinism is important then you might have to use... mathematics
You could make it multiple step, calculate with normal gravity until your bullet reach the trigger, and proceed rest with affected gravity

[void basalt]

Just the last and current simulation

is all you need to check

so yeah, you should check after they've moved

[dawn nebula]

after they've moved?

what if you teleport them?

[void basalt]

That would be moving

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

[dawn nebula]

ok but the hitbox would extend massively from your old position to the new one

[void basalt]

This tells you when the physics engine fires

[void basalt]

wym?

We aren't extending the hitbox of anything. We're just raycasting from lastPosition to currentPosition

It's just shooting a line between them, to figure out what it hit

[dawn nebula]

ya so if the projectile is somehow teleported between when you save the last position but before you do the raycast check from your current position, they raycast will extend from your current position to your pre-teleported location

[void basalt]

Don't think of this as a multi-threaded scenario. This usually won't happen

code gets executed from top to bottom, one line at a time, one file at a time

you should always be able to tell when your code gets executed

[dawn nebula]

no I get that

maybe I'm not explaining this correctly

[void basalt]

Code start -> Bullet move -> Player Move -> Bullet hit check

should generally be the order in which your code runs

as an example.

If your bullet moves, then teleports somewhere else, that new teleport position should be the current position.

you'll still have the same last position from the last simulation update

[dawn nebula]

this make sense or the ramblings of a mad man?

[void basalt]

reading

So when it teleports, you don't want it to check against the last position?

If so, just overwrite the last position when that happens.

[dawn nebula]

blegh

[void basalt]

then you'll have your lastPosition and currentPosition the same, and the hit detection basically will never return true after a teleport.

[dawn nebula]

why not check forward btw?

[void basalt]

because you'd be time traveling into the future

it would still work though

[dawn nebula]

i guess the difference would be, in the case where you destroy on the trigger overlap

for one frame the projectile would be in the trigger

but looking ahead you wouldn't ever see it in the trigger

assuming Update had a chance to fire

man

physics sims bruh

[void basalt]

You also only need to perform the raycast inside FixedUpdate

it would be wasteful to do it every Update() frame

(assuming you're still using rigidbodies)

[dawn nebula]

ye I figured

separate question

let's say I have 2 vectors

I want to rotate some third vector by the angle between those 2 vectors

how do

[void basalt]

@dawn nebulahttps://docs.unity3d.com/ScriptReference/Vector3.Cross.html

like this?

There's probably a better way of doing what you want

[leaden ice]

The angle between them on which axis and rotate the third on which axis?

You're missing information in your question

[leaden ice]

Vector3.SignedAngle

To get the angle

And make a quaternion with AngleAxis to rotate the vector by that angle

[dawn nebula]

Need an angle axis for signed angle

I guess that makes sense?

would that be the cross product of those 2 vectors?

@leaden ice

[leaden ice]

in your pciture it's whatever axis is coming out of the paper/screen

[dawn nebula]

what do I do with the quaternion?

multiply it by original vector?

[leaden ice]

multiply the black vector by it

to rotate it

[dawn nebula]

you mean the red?

[leaden ice]

no the black

[lean sail]

are u trying to rotate the black or red vector?

[dawn nebula]

red vector

[leaden ice]

psuedocode:

float angle = Vector3.SignedAngle(solidRed, dashedRed, axis);
Quaternion rotation = Quaternion.AngleAxis(angle, axis);
Vector3 result = rotation * originalBlackVector;```

[leaden ice]

your image implies you want to rotate the black one

[dawn nebula]

by the difference in angle between the two black vectors

[lean sail]

i thought it was the other way around from the drawing too

[leaden ice]

so that's what I wrote code to do

[dawn nebula]

aw shit mb then

[leaden ice]

yeah the drawing is the opposite - so my code above is going by the drawing

[dawn nebula]

I thought the doted vector and the "I need this" was enough to show I wanted the theoretical red

[leaden ice]

I thought it was saying "i need this angle"

and then rotating the black by that 😆

either way

just do it the other way around

[dawn nebula]

alright clearly my paint skills are not up to par

[leaden ice]

same deal

[wind palm]

Pretty sure you can get the angle difference by doing

var diff = Quaternion.Inverse(fromRotation.rotation) * toRotation;

From and To may be reversed

[dawn nebula]

Thanks works.

[leaden ice]

oh yeah Quaternion.FromToRotation also works

[urban stream]

Hello! How do I make the variable "numberofJumps" add one when it's the ground instead of it waiting to add one after it gets off the ground? Here's my code: https://pastebin.com/Y9wUEkB1

Before you make fun of me, i will clean up the script im just trying to get things working

[ionic adder]

@urban stream Hot tip: clean up first before asking for help. You'll get help faster.

[ember pine]

that is pretty easy, just create a gameobject. Set the tranform ' forward and rotate it by 30 degress and now the new forward is result

[hollow relic]

i f*cked up

I used git on a unity project for the first time on something that is overdue

and now i have a merge conflict

[swift falcon]

Oh no

[hollow relic]

i truly done f*cked up

[swift falcon]

Idk how to help

Good bye

[hollow relic]

I FIXED?

dam

[lean sail]

merge conflicts are easy to fix, it just depends what the conflict was actually on

hopefully your fix doesnt mean u force pushed or something..

[hollow relic]

im on a different branch thankfully

[wide ermine]

im sure theres a better solution that im unaware of (if there is please tell me i really want to know), but you can create a variable called previouslyGrounded, and at the end of the fixedupdate you can set it to previouslyGrounded = isGrounded

idk if what im saying makes sense

and to check if it has changed you just do previouslyGrounded == isGrounded

[gray mural]

are you trying to do max jumps value?

for example, I can jump no more than 3 times before I am grounded

you then need to make numberOfJumps variable, yes

private int currentJumps; // jumps in the air (when not grounded)
private readonly int maxJumps = 3; // let it be e.g. 3

private void Update()
{
    if (Input.GetKeyDown(KeyCode.Space) && currentJumps < maxJumps) 
        Jump();
}

private void Jump()
{
    currentJumps += 1; // one more jump

    rigidbody.AddForce(Vector3.up, ForceMode.Impulse); // AddForce or whatsoever
}

private void OnCollisionEnter(Collision collision) // or smth similar
{
    if (collision.CompareTag("Ground"))
        currentJumps = 0; // when collided with ground - curentJumps is set to 0
}

@urban stream smth like this should work

[gray mural]

Does anyone know why are Backspace and Delete keys not triggered here?

private void LookForEvent()
{
    StartCoroutine(LookForEventCoroutine());

    IEnumerator LookForEventCoroutine()
    {
        yield return _waitForEvent;

        while (Event.PopEvent(_currentEvent))
        {
            print($"nice keyCode: {_currentEvent.type}");
        }

        StartCoroutine(LookForEventCoroutine());
    }
}

They should though. They are part of EventType.KeyDown, aren't they?

[quartz folio]

Why are you doing this? I have no idea why you'd be consuming events yourself like this

[gray mural]

I am trying to work with Events, cause I am trying to create my custom InputField for game.

TMP_InputField also has this thing

but it does work there

[ashen shale]

Does this work ? Meaning can I call a physics simulation in Update() ? Or shall I run it somewhere else ?

    void Update()
    {
         ...
        for (int i = 0; i < simulationSteps; i++)
        {
            ...
            SimulationScene.Simulate(Time.fixedDeltaTime);
        }
        ...
    }

[void basalt]

yeah, don't do that

you're going to create massive lag

[ashen shale]

And I guess my physic will not be simulated ?

[void basalt]

It will be

which is why it will be so laggy

[ashen shale]

Ahaha, ok then I'll change my implementation

[void basalt]

What are you trying to do in the first place?

[ashen shale]

I want to draw a trajectory

[void basalt]

You can definitely do that with physics steps, and I know unity recommends it, however you will experience awful FPS drops

to the point where it just doesn't make sense

[ashen shale]

I know that I can use a math approach, thing is it is a space simulation. The game applies newton's law to the closest planet. So I figured that it is simplier to use physics steps

[void basalt]

Definitely best to avoid the physics engine in this case for predicting trajectories. Physx performance in scenarios like this is absolutely awful specifically when it simulates multiple times in a single frame.

Especially since it's already a space game with tons of stuff going on

[ashen shale]

What is your advice then ?

[void basalt]

You can obtain the velocity of rigidbodies

and you can estimate their path from that

[finite hazel]

Is anyone familiar with the load errors i get in this webgl project? https://vaggelischristopoulos.eu/PolarWebTest/index.html

[wind palm]

This shouldn't require a physics engine.

If they have a store of all gravity producing objects then it's a simple loop.

However, I do believe differentiation can be used here, but I'd have to remember exactly how I'd go about that.

[gentle rain]

idk if this is the place to put this but I am currently working on a dream game that is similar to Tarkov, Rust, and DayZ but in VR and i need ideas because I suck at implementing things plus if I could get some help anyone who works with VR in Unity please DM me I would mainly ask for ideas but if I had a question or two like how shit stays and servers would work in VR again if this isnt the channel to ask please point me in the right direction

[lean sail]

I definitely would not differentiate unless this is an EXACT calculation that needs to be performed. Approximations would be better and realistically the 0.001 inaccuracies wont matter

[ashen shale]

I don't really need the exact calculation, the thing is I have a dedicated function to calculte gravity, to which planet apply it and it based upon the distance between the different objects

since this is dynamic i figured that resimulate was the easiest thing to do

[cold egret]

- In my input service, i want to behave differently in build vs in editor. I read about the conditional compilation, but i'm not sure whether i use this properly or not, since rider tells me that some code is unreachable. So is this correct?

// meant to be "if in editor"
#if UNITY_EDITOR
    // get mouse input
    return Input.GetMouseButtonDown(0);
#endif
    // else return mobile device input
    return Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began;

[fervent furnace]

correct
since in editor the compiler will see both return statements and the return below is not reachable
but outside the editor the above return will not be compiled so the below one will be executed instead, if you want to get rid of the warning, you can use # else or #pragma warning disable (not recommended)

# if UNIXXXX
first return
# else
second return
# endif

[cold egret]

- And one more: i want to load a scriptable object from resources, get data from it and unload it immediately. Does Resources.UnloadAsset handle this? For some reason my data gets corrupted after calling it and this is very bad

[muted root]

pretty dumb question... why does my game build doesn't get recognized by discord for screensharing? is there anything i should do to fix this?🤔

[dusk apex]

What're you doing with the SO?

Copying some data and not referencing it, hopefully.

[cold egret]

- Here's how it's used. In a nutshell: load, read data, unload

var colors = Resources.Load<GameColorsConfig>(themePath);

var theme = new GameColorsRuntimeData();
theme.Load(colors);

Resources.UnloadAsset(colors);

- Behind the Load():

public void Load(GameColorsConfig data)
{
    PlayerColor = data.PlayerColor;
    ObstacleColor = data.ObstaclesColor;
    BackgroundColor = data.BackgroundColor;
    ParticlesColor = data.BackgroundParticlesColor;
}

[dusk apex]

This is the coding channel #🔎┃find-a-channel

[dusk apex]

What're those properties?

Are they references or values (structs/primitives)?

[cold egret]

- Those are just color32

- I.e. values

[dusk apex]

What do you mean by your "data gets corrupted". I'm assuming, not the SO but the properties you copied.

[cold egret]

- No, SO values are changed

[dusk apex]

How are you verifying?

[cold egret]

- Alas, for me and my collegue it's different. For him, all colors are rest to (0, 0, 0, 0), and for me they get mixed

[cold egret]

- Just docking the SO's properties and observing them. Magically they do change

[dusk apex]

Any subsequently loaded Scenes or assets that reference the asset on disk will cause a new instance of the object to be loaded from disk.

By docking, are you referring to loading them again? They wouldn't be the same assets.

[cold egret]

- By docking i mean selecting an asset, prossing alt+p and watching it from the editor. I.e. viewing it in unity through the inspector

[dusk apex]

What you see in the inspector wouldn't be what was loaded.

[cold egret]

- It's not about mismatch. Let's start from scratch, because this is going in the wrong direction

- The script above loads an SO asset from resources does not modify nor stores a reference to it, and unloads it. After this, for whatever reason, data inside the mentioned SO asset is changed

[dusk apex]

Create a new scene with only a simple script that simply loads and unloads the asset. Not modifying or copying any data. Ensure it isn't something else that you could be doing.

The data should not change.

[cold egret]

- Scriptable object has no setters on its properties. It simply cannot be modified with my scripts

- Furthermore, the above code is the only place where this asset and its class are used. Nowhere else in the game

- Here's the result of this btw. Before and after

[dusk apex]

I still believe you ought to isolate this problem by excluding anything and everything else that you've got in the scene.

Else this discussion will not go anywhere. Show that with nothing else in the scene, the data is corrupting.

[cold egret]

- While i'm setting it up, here's a quick note: after i remove the unload asset invokation, it does not corrupt assets anymore. Any thoughts on how can this be related?

[dusk apex]

Multiple access of the same asset on disc (inspector/programmatic etc) but I doubt it.

[cold egret]

- Same results. Here's the script that calls the above code:

public class SOCorruptionTester : MonoBehaviour
{
    [SerializeField] private GameThemes _gameTheme;
    [SerializeField] private bool _darkTheme = true;
    private ResourcesGameThemeResolver _themeResolver;

    private void Awake() =>
        _themeResolver = new ResourcesGameThemeResolver();

    private void OnValidate() =>
        _themeResolver?.Resolve(_gameTheme, _darkTheme);
}

- And also, this time the inspector crashed with an error. See screenshot. After i exited play mode, the error is gone and values are mixed again

- Console shows no errors btw

- I believe it's a bug on the unity's side?

- Hello?

[dusk apex]

I've created a test sample and could not generate your findings: ```cs
public class Sample : MonoBehaviour
{
public Color32 color;
private void Start()
{
var data = Resources.Load<SOExample>("Data");
color = data.color;
Resources.UnloadAsset(data);
}
}

public class SOExample : ScriptableObject
{
    public Color32 color;
}```But interestingly enough, if you access the the SO when resource attempts to load the data, you get an error.

Not inspecting the SO instance when the application runs, causes no issues.

The sample copies the correct color and the SO retains it's color.

[cold egret]

- I can try to pack my project's piece and send it to you to see if this happens on your end as well

[dusk apex]

I'm not going to download or run your application.

I'll just show a tiny video of it being fine.

[cold egret]

- Bruh. Project, not application

[cold egret]

- Cool! Should i do the same?

[dusk apex]

Not sure. I'm only informing you that I cannot reproduce what you've shown.

[cold egret]

- If you're worried about me hacking you or whatever lol, i can link a github repo of this project, where you can copy scripts yourself. But the folder hierarchy, scenes and SOs are up to you then

[dusk apex]

That's not my concern or my job. I'm showing you that it's not reproduced on my machine with the above code illustrated.

[cold egret]

- Again, cool, i'm glad it's not the case for you. But for me it is, any thoughts on that?

[dusk apex]

You've got something else going on.

[cold egret]

- And what could it be?

[dusk apex]

Reminder that viewing the SO instance while loading the resource causes the Unity Editor to crash.

[cold egret]

- On my end (xbox game bar recorder missed popups from unity and displaced the cursor a little)

- Values appear to reset to some values, idk

[sharp root]

Hi im trying to add Interstitial Admob ads every fourth scene change for my mobile game , however i get lots of errors , Heres the script

`using UnityEngine;
using GoogleMobileAds.Api;

public class InterstitialAdManager : MonoBehaviour
{
private InterstitialAd interstitialAd;
private int sceneChangeCount = 0;
private int interstitialFrequency = 4; // Number of scene changes before showing interstitial ad

private void Start()
{
    // Initialize interstitial ad
    string interstitialAdUnitId = "YOUR_INTERSTITIAL_AD_UNIT_ID";
    interstitialAd = new InterstitialAd(interstitialAdUnitId)
    {
        AdUnitId = interstitialAdUnitId
    };

    // Create an ad request
    AdRequest request = new AdRequest.Builder().Build();

    // Load the interstitial ad
    interstitialAd.LoadAd(request);

    // Subscribe to the OnAdClosed event
    interstitialAd.OnAdClosed += (sender, args) => HandleOnAdClosed();
}

// Method called on scene change
public void OnSceneChange()
{
    sceneChangeCount++;

    // Check the scene change count
    if (sceneChangeCount >= interstitialFrequency)
    {
        // Check if the interstitial ad is ready to be shown
        if (interstitialAd != null && interstitialAd.IsLoaded())
        {
            // Show the interstitial ad
            interstitialAd.Show();

            // Reset the scene change count
            sceneChangeCount = 0;
        }
    }
}

// Event handler for the interstitial ad closed event
private void HandleOnAdClosed()
{
    // Load a new interstitial ad when the previous one is closed
    AdRequest request = new AdRequest.Builder().Build();
    interstitialAd.LoadAd(request);
}

}
`

Any help would be appreciated

(I think im using outdated things in my script)

[mellow sigil]

You'll have to show the error messages too

[sharp root]

I will

'InterstitialAd' does not contain a constructor that takes 1 arguments

'InterstitialAd' does not contain a definition for 'AdUnitId'

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

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

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

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

Thats it

[gray mural]

oh my man, just !code

[tawny elk]

Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

[gray mural]

3 "`" at the beginning and end

[mellow sigil]

Let me guess, you got this code from ChatGPT?

[sharp root]

YEAH

[mellow sigil]

ChatGPT produces nonsense code. You'll have to start over, read the actual documentation. It has examples.

[sharp root]

I know it has i just cant figure it out

[gray mural]

what's up? why when I am trying to react on your message, my screen is shaking and reaction is deleted

[mellow sigil]

I've blocked you

[gray mural]

what does it mean?

and how?

[gray mural]

use documentation, yes, https://developers.google.com/admob/unity/quick-start

ask ChatGPT not to write the whole code, but parts of it

[gray mural]

oh, I see how now, didn't know that blocks reactions too

[unborn bronze]

Not sure where to ask this but how do I make a liquid

[gray mural]

Particle System probably ??

[marsh wadi]

anyone who could tell me what this is?

[heady iris]

ask it to write none of it. learn to write the damn code.

[heady iris]

it's waiting for the GPU to finish rendering.

you have two (or more) cameras in your scene

[gray mural]

no.

[ashen shale]

I have this code:

for (int i = 0; i < simulationSteps; i++)
{
    Gravity.calculateGravity(ghostPlanetsObj, ghostRocketObj, true);
    TrajectoryPhysicsScene.Simulate(Time.fixedDeltaTime);
    Debug.Log("ghostRocketObj.transform.position: " + ghostRocketObj.transform.position);
    lineRenderer.SetPosition(i, ghostRocketObj.transform.position);   
}

What I see is that ghostRocketObj.transform.position keeps the same coordonates
calculateGravity make some calculations and ends with AddForce for ghostRocketObj.

[native prawn]

    public void SeekForPlayer()
    {
        Vector3 rayOrigin = new Vector3(0.5f, 0.5f, 0f); // center of the screen
        float rayLength = 20f;
        Ray ray = turretCam.ViewportPointToRay(rayOrigin);
        Debug.DrawRay(ray.origin, ray.direction * rayLength, Color.red);
        RaycastHit hit;

        if (Physics.Raycast(ray, out hit, rayLength))
        {
            if (hit.collider.tag == "Player")
            {
                Debug.Log("Did Hit");
            }
        }
    }

So I need to check if the raycast hits something or not.
But whenever I touch the raycast nothing happens? And I have no idea what I did wrong

[marsh wadi]

I see, but why would it do that before I render anything? I don't believe I'm GPU limited at this time

[dusk apex]

Are you tagged player?

[native prawn]

yes

[dusk apex]

Either the raycast failed to hit anything or whatever it hit was not tagged as player.

[quartz folio]

Use CompareTag, not equality, to compare tags

[dusk apex]

Also your ray cast origin should be a world point.

[quartz folio]

it's fine as is, and is a world point

[dusk apex]

Ah, ui. Viewport.

[quartz folio]

It's a ray coming out of the center of the camera

[heady iris]

well, it sure looks like you are!

every camera gets rendered every frame

[native prawn]

It does work now, but the thing is that the raycast isn't going further than the red line. Even though the maxdistance is a lot

[quartz folio]

Surely it's just hitting the object your camera is in

[native prawn]

The collider is turned off? Then there is nothing to hit on the object

[quartz folio]

So, print what it's hitting then and find out

[frail meteor]

Hi there, I need help regarding converting an array of byte into an AudioClip.

I'm building a WebGL app that in runtimes should be able to receive MP3 audio from the website backend where its hosted.

Since its not possibleo to directly send MP3s from website to the app I have to follow this pipeline:
Site generates the mp3 -> converts it into an array of bytes -> converts it into a string -> send it to the app via the SendMessage method.

Now after receiving the string I need to do the opposite, I already did the string to []byte conversion but I'm stuck at creating the audioclip since it indeed create a clip but on play the audio its just a mix of noises. Is somebody able to help?

Here's the script I'm using: https://hatebin.com/drkzqdzrbn

(Before suggesting to use a WebRequest I can't point to a link since the audio is different each time and its generated at runtime)

[native prawn]

It does hit the player if I print the gameobject's name. It just doesn't print if i use compare tag to find it.

[quartz folio]

So then the player doesn't have that tag

[heady iris]

AudioClip.Create takes PCM data

i.e. a WAV file

[native prawn]

Thanks a lot. This is a mistake on my end 😅.
The one with the red line has the tag, but that is just a empty object.

[heady iris]

it's a long list of loudness values

you would need to decode the MP3 data first

i suspect you'll need to grab a third party library for that

trying to interpret MP3 data as a WAV gives you some very weird sound.

[frail meteor]

Oh ok, any idea on how can I handle Mp3? I dont think I can convert the mp3 data I receive to wav on the go....

[latent fossil]

yo how i can fix that?

[heady iris]

as I just said: you will need a library

[frail meteor]

So a library that turn []byte into Mp3/Audioclip

[heady iris]

to turn MP3 data into PCM data

which AudioClip.Create can ingest

[frail meteor]

ok

Can I look for generic libraries or should I search for unity specific one? Sorry I've never been in this situation

[latent fossil]

so?

[sleek bough]

Don't spam. This is a code channel. If you have a question about implementation post a proper question with the code. Read the #854851968446365696 on how to ask questions.

[ashen shale]

Can directly apply AddForce to an object which is in another scene ?

eg:

private GameObject ghostObj;
...
SceneManager.MoveGameObjectToScene(ghostObj, OtherScene);
...
Rigidbody2D body = ghostObj.GetComponent<Rigidbody2D>();
body.AddForce(forceVector);

[vague jolt]

I am getting thi error:
NullReferenceException: Object reference not set to an instance of an object
snapToGrid.snap () (at Assets/Script/snapToGrid.cs:42)
ObjectPlacer.Update () (at Assets/Script/ObjectPlacer.cs:95)

ON this line

if (objectPlacer.instantiatedStructure == gameObject)

this is inside a function called snap that is called every frame and I added the following if

        if(objectPlacer.instantiatedStructure != null)
        {
            snap();
        }

But didn't fix,
Is also called here in the object placer script in this way:

        if (instantiatedStructure != null)
        {
            instantiatedStructure. GetComponent<snapToGrid>().snap();
        }

[vague jolt]

no, scene are not loaded unless open, but you could store the force with player prefs and give the force when you lead the scene

[swift falcon]

hi.. would a trigger work if its parent game object has the rigid body componened (the child game object has the trigger and the script that has the on trigger methods)

[vague jolt]

The parent does not matther, but at least one of the two gameobjects that trigger each other needs to have the rigidbody

[swift falcon]

I see, thank you

[vague jolt]

np

[ashen shale]

How do I ensure that it is loaded ? I use it for trajectory simulation

[vague jolt]

on void start

thatr void is execture once when you open the scene

in that moment you read the player prefs and add a force

just remember that player prefs don't get deleted even if you uninstall the game, so you need to delete them or set them back to zero when you start the game

[ashen shale]

Aaah well I do set the scene in the onStart method and it is kept in global

but you're saying that not enought ?

[swift falcon]

well I added a game object that has a rigidbody component and it didnt work

[vague jolt]

if i am not wrong script variable get deleted when you laod a new scene, player prefs exist for that reason

the only way to save data between scenes is by actualy saving the data, there are many ways to do it player prefs is an easy one

wait

https://www.youtube.com/watch?v=XOjd_qU2Ido

[ashen shale]

I think there is a missunderstanding. In my game scene i create a parallel one for trajectory prediction

[vague jolt]

this should help

[vague jolt]

you mean like unity scenes ?

becase i am 99 percent sure that you can't have two scene running at the sae time

[potent sleet]

wrong

[vague jolt]

ah my bad

[latent latch]

Would a singleton work for that

assuming it's on a single scene

[vague jolt]

well you learn something new every day

[potent sleet]

thats why load Additive exists lol

[latent latch]

otherwise static data probably

[ashen shale]

My problem is that I have a GameOject in the TrajectoryScene and I don't know why AddForce doesn't work on it

[latent latch]

Oh, huh interesting

[swift falcon]

ok one question... is there a way to make overlapsphere last for seconds? and have it report all the object that were inside of it

[latent latch]

^cast it multiple times

[dusk apex]

Cast it every frame for x seconds

[vague jolt]

Bump

[woven matrix]

hey guys need some help, I am using this code to get me a signed angle on two points the target and the origin, but if the origin rotates the angle changes until the rotation stops

 Vector3 targetDirection = target - OriginTargetingAngle.position;
            
            float angle = Vector3.SignedAngle(initialForward, targetDirection,OriginTargetingAngle.right);
            float clampedAngle = Mathf.Clamp(angle, -90f, 90f);

[potent sleet]

what is objectPlacer

[vague jolt]

A script

[potent sleet]

no shit

but its null

[dusk apex]

What line is 42?

[vague jolt]

The line i sent

[dusk apex]

Object placer is null

[vague jolt]

If object placer .instantiated == gameobject

[vague jolt]

The script ?

[dusk apex]

NRE occurs when you attempt to access a member of a null reference.

[potent sleet]

^

[vague jolt]

Thats strange because object placer is on a gameobjsct that is ne er deleted

[swift falcon]

that wont help me a lot but thank you

[frosty lynx]

How would I convert a SceenSpaceReflectionPresetParameter to an int or atleast how do I modify it? I'm using Unity 2014 with BuiltIn.

[dusk apex]

The reference being null isn't an issue. The error would occur the moment you attempt to access a member.

[potent sleet]

what is it now ?

[latent latch]

Well, that's the solution if you need it ;)

[swift falcon]

thank you

what i am trying to do is using triggers, i made a box rigidbody, and there's another object that's moving based on its parent's movement.. when the trigger is hitting the box rigidbody, it is not summoning on trigger enter... i dont know why

[vague jolt]

But in void start i defign objectPlacer = GameObject.Find("Controller").GetComponent<ObjectPlacer>();
}

[dusk apex]

Make it somehow not null and this error will go away.

[frosty lynx]

Basically I'm trying to modify a Screen Space Reflections preset through a script.

[vague jolt]

And that script never gets removed

[potent sleet]

did not answer the question

[dusk apex]

So the controller object was found but the component wasn't present.

[frosty lynx]

What was the question then?

[potent sleet]

maybe it never does grab it

debug.log it

[dusk apex]

Else it would have blown up there first @vague jolt

[potent sleet]

scroll up and read it

[vague jolt]

Now i can't try but i will check it more later. At least i know whatto check

Wait

Why the error is not calling on the if in the void update ?

But instead in the if in the void snap. Shouldn't it call before there?

[potent sleet]

you're checking instantiatedstructure not null
not objectplacer
@vague jolt

[dusk apex]

You're unable to test print anything so you ought to ask this question later when you're able to debug properly.

[vague jolt]

Yeah i will do it later

Tanks any way

[frosty lynx]

SceenSpaceReflectionPresetParameter is the parameter used to modify what preset that is being used on Screen Space Reflections

[north warren]

Why doesn't the 1st Log and the 2nd one return the same thing ?

the 2nd Log constantly shows y=1.0000

[twin hull]

@north warren don't set quaternion directly

[potent sleet]

seriously

should never have to do that ever

[north warren]

So how to do so

[potent sleet]

use Euler

[north warren]

First time deaaling with C#, first time using Quaternions

[north warren]

so xyz ?

[potent sleet]

ye

there's built in functions

[north warren]

This ?

[potent sleet]

you need to find the component it belongs too and get the toggler and see if it's even possible

if thats Global Volume should be fairt simple

[north warren]

Yes never had to deal with Quaternions

First time using Unity, im cloning a project i was previously making using Panda3D

what's with the w component

Oh nvm

actually do mind

[potent sleet]

you dont new a quaternion method

[north warren]

Oh that's odd

quaternion specific ?

[potent sleet]

is a static function

[north warren]

Oh okay

im not calling a struct

but a function

[potent sleet]

the function is in the struct

freaky

[north warren]

Okay but honestly im still not getting the result im looking for

[potent sleet]

you should explain what you're trying to do

[north warren]

im making this car game and i want to make the camera follow the car

[potent sleet]

simple. use cinemahchine

forget this rotatioons crap

[lusty dune]

Child the camera

[potent sleet]

that will look like shit

don't do that

[lusty dune]

Hmm...

[potent sleet]

if you wanna a stiff barely able to adap camera sure

parent it

quick follow.. ok

i can see why it was bought

[ashen shale]

I'm pretty sure that's something quite simple that I miss but it's driving me insane 🤣

I manage to create the new scene, to move the goshtObjects to it

[north warren]

what is this cinemachine

[ashen shale]

I can compute physics but I can't apply it

[ashen shale]

A type of camera

[north warren]

alright so gotta head to pkg manager ?

and after that ?

[lusty dune]

Oh boy

[north warren]

yes but how do i set the follower itself ?

is it some component ? im still fairly new to unity

[latent latch]

I've not really seen projects that compute logic between scenes beyond just async loading, so I'm not too aware of computing physics logic like this.

[north warren]

Oh i found smth

[ashen shale]

I have the feeling that my use case is quite exotic actually 😅

[polar bane]

I can't open any project...

[polar bane]

I get this error 😦

I've been trying all day

can't get it fixed

[somber nacelle]

this is a code channel. check the logs for relevant info. then ask in a relevant channel if you need further help

[polar bane]

okay

[polar bane]

also where can I find logs..

can't find them

[somber nacelle]

if only there were some sort of convenient button that would open up the crash logs. since neither of us can read i guess we can assume it doesn't exist

[polar bane]

😢

I've been trying for so long

[polar bane]

I just installed unity 2022 lts and started having this error in every project and every version

[fiery geyser]

I'm creating a spline like this:

using UnityEngine;
using UnityEngine.Splines;

namespace MCBEAddoner.Nodes
{
    public class ConnectionCreator : MonoBehaviour
    {
        public Transform startMarker;
        public Transform endMarker;
        public Spline spline;

        private void Start()
        {
            spline = new Spline();
            
            Vector3 startPosition = startMarker.position;
            Vector3 endPosition = endMarker.position;
            
            float segX = Mathf.Abs(startPosition.x) + Mathf.Abs(endPosition.x) / 4;
            float segY = Mathf.Abs(startPosition.y) + Mathf.Abs(endPosition.y) / 4;

            if (startPosition.y < endPosition.y)
                segY = -segY;

            Vector3 startMiddlePoint = new Vector3(startPosition.x + segX, startPosition.y - segY);
            Vector3 endMiddlePoint = new Vector3(endPosition.x - segX, endPosition.y + segY);

            spline.Add(new BezierKnot(startPosition));
            spline.Add(new BezierKnot(startMiddlePoint));
            spline.Add(new BezierKnot(endMiddlePoint));
            spline.Add(new BezierKnot(endPosition));
            
            spline.Warmup();
        }
    }
}

but it doesn't render, why?

[heady iris]

because a spline is just some data

why do you expect it to render a mesh?

[fiery geyser]

idk, the Spline component did

how can i make it render a 2d line?

[frail meteor]

https://hatebin.com/uaifbmpagy

This is the code I use to receive an mp3 that was previously converted into an array of bytes and then into a string to be able to enter in a SendMessage()

It works like a charm on unity editor but doesnt work on WebGL, probably due to the limitation to not be able to use 'Application.persistentDataPath' and other local memory related things once hosted on website.

Can somebody help me out figuring out if its possible to convert it?

(posting on this channel cause it is a webgl issue but its mostly a code related thing)

[knotty sun]

nothing to do with persistentData, everything to do with using file:/// protocol

[frail meteor]

Oh, thanks for the clarification

So yeah basically I use UnityWebRequestMultimedia to generate the file from the array

I tried with AudioClip.Create but seems that it works for WAVs and not MP3s

[knotty sun]

so did you read

https://docs.unity3d.com/ScriptReference/Networking.UnityWebRequestMultimedia.html
?

or
https://docs.unity3d.com/ScriptReference/Networking.UnityWebRequestMultimedia.GetAudioClip.html

[heady iris]

oh dang, there you go (:

[frail meteor]

yes, but these are not useful when the file is not on an url

am I wrong?

[knotty sun]

you are wrong. you just need to use a different protocol depending on your target platform

[north warren]

For the yaw damping in cinemachine, can you make its range bigger AND its movement slower

[knotty sun]

#🎥┃cinemachine

[north warren]

right now the more the yaw damping, the more the range AND the movement get bigger

[frail meteor]

Sorry but can you explain how?

[north warren]

Thanks

[knotty sun]

https://docs.unity3d.com/ScriptReference/Application-platform.html
if it's WebGL use HTTP or HTTPS if its Editor or PC use file:///

mobile has it's own particular problems because of file security

[frail meteor]

thats all? wow, I still dont believe it but I'm gonna give it a try rn

[knotty sun]

never done any web dev I guess

[frail meteor]

basically no

It didn't worked :c

This is the suggestion coded, should be fine

[heady iris]

well, yeah, it 403'd

something is wrong with your request

[frail meteor]

"Please note that in WebGL, the use of local file paths such as "file://" + tempFile is only available when running the game from the local file system (file:// protocol). If you plan to deploy the WebGL build on a web server, you need to use UnityWebRequest.Get or UnityWebRequest.Post to fetch the audio data from a server endpoint rather than accessing local files directly."

Could this be? found on chatgpt
Also the request goes fine on editor...

here's the full updated code: https://hatebin.com/lqcbcqdjtc

I really can't understand what should be adjusted :/

[coarse vine]

hello, this is a bit unrelated but I and trying to develop in VS not using unity just a normal project and whenever I debug the console closes right after compiling the code can anyone help me?

[potent sleet]

dont cross post..

i already redirected you to the C# discord

[coarse vine]

No one is responding

[potent sleet]

you didnt even wait 2 minutes

[potent sleet]

also Console applications close after runs

unless you put Console.ReadLine() at the end

[coarse vine]

also the last message in that server was 3 hrs

[potent sleet]

or you hold the app inside a while loop

[coarse vine]

I know but is there a permeant solution?

[potent sleet]

that's how console application works

you can't change that

[coarse vine]

that was cringe idk why i put that

[coarse vine]

anyways thanks for your help

[jovial salmon]

Does Assembly-CSharp.dll not exist in the latest version of unity 2021?

I've reinstalled twice already and I can't get rid of this error on an old project even when moving the assets to a new one

[potent sleet]

keep the backup.

delete library folder

try again

wait for rebuild

[jovial salmon]

This time these files were generated, but not the dll

[frail meteor]

@knotty sun sorry for the ping man, when you have time please check the reply. 🙏

[fiery geyser]

anyone here has a tutorial for a zoomable panel?

[gray mural]

just search for it in youtube

https://www.youtube.com/results?search_query=zoomable+panel+unity

[cold briar]

I'm gonna need to use Netcode for Entities for a project of mine and so I'm trying it out on a local project, but the out-of-the-box project (2D URP+Entities, Entities Graphics and Netcode For Entities in 2022.3.1f1) already came with a memory leak warning which I ignored and started following a tutorial on Netcode For Entities hoping it would disappear. Not only it didn't disappear but there are now even more memory leaks.
The video I'm following is this one: https://www.youtube.com/watch?v=WlWDus1h5YE
I followed the video all the way to the end and I have the same as him, but if you don't want to watch it, this is the code I have rn:

• NetcodeBootstrap.cs

using Unity.NetCode;
using UnityEngine.Scripting;

[Preserve]
public class NetcodeBootstrap : ClientServerBootstrap
{
    public override bool Initialize(string defaultWorldName)
    {
        AutoConnectPort = 2134;
        return base.Initialize(defaultWorldName);
    }
}

• GoInGameSystem.cs

using Unity.Burst;
using Unity.Collections;
using Unity.Entities;
using Unity.NetCode;
using UnityEngine;

[BurstCompile]
[WorldSystemFilter(WorldSystemFilterFlags.ClientSimulation | WorldSystemFilterFlags.ThinClientSimulation)]
public partial struct GoInGameClientSystem : ISystem
{
    [BurstCompile]
    public void OnCreate(ref SystemState state)
    {
        EntityQueryBuilder builder = new EntityQueryBuilder(Allocator.Temp)
            .WithAll<NetworkId>()
            .WithNone<NetworkStreamInGame>();
        state.RequireForUpdate(state.GetEntityQuery(builder));
    }

    [BurstCompile]
    public void OnDestroy(ref SystemState state)
    {

    }

    [BurstCompile]
    public void OnUpdate(ref SystemState state)
    {
        EntityCommandBuffer commandBuffer = new EntityCommandBuffer(Allocator.Temp);
        foreach ((RefRO<NetworkId> id, Entity entity) in SystemAPI.Query<RefRO<NetworkId>>().WithEntityAccess().WithNone<NetworkStreamInGame>())
        {
            commandBuffer.AddComponent<NetworkStreamInGame>(entity);
            Entity req = commandBuffer.CreateEntity();
            commandBuffer.AddComponent<GoInGameRPC>(req);
            commandBuffer.AddComponent(req, new SendRpcCommandRequest { TargetConnection = entity });
        }
        commandBuffer.Playback(state.EntityManager);
    }
}

[BurstCompile]
[WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation)]
public partial struct GoInGameServerSystem : ISystem
{
    public ComponentLookup<NetworkId> NetworkId;

    [BurstCompile]
    public void OnCreate(ref SystemState state)
    {
        EntityQueryBuilder builder = new EntityQueryBuilder(Allocator.Temp)
            .WithAll<GoInGameRPC>()
            .WithAll<ReceiveRpcCommandRequest>();
        state.RequireForUpdate(state.GetEntityQuery(builder));
        NetworkId = state.GetComponentLookup<NetworkId>(true);
    }

    [BurstCompile]
    public void OnDestroy(ref SystemState state)
    {

    }

    [BurstCompile]
    public void OnUpdate(ref SystemState state)
    {
        FixedString128Bytes worldName = state.WorldUnmanaged.Name;
        EntityCommandBuffer commandBuffer = new EntityCommandBuffer(Allocator.Temp);
        NetworkId.Update(ref state);

        foreach ((RefRO<ReceiveRpcCommandRequest> reqSrc, Entity recEntity) in SystemAPI.Query<RefRO<ReceiveRpcCommandRequest>>().WithAll<GoInGameRPC>().WithEntityAccess())
        {
            commandBuffer.AddComponent<NetworkStreamInGame>(reqSrc.ValueRO.SourceConnection);

            NetworkId networkId = NetworkId[reqSrc.ValueRO.SourceConnection];

            Debug.Log($"{worldName} connecting {networkId.Value}");
            commandBuffer.DestroyEntity(recEntity);
        }
        commandBuffer.Playback(state.EntityManager);
    }
}

[fiery geyser]

the problem is that if i instantiate UI elements after resizing, they will stay the same size

[cold briar]

is it UI Toolkit?

[fiery geyser]

no

just a normal panel in a canvas

[cold briar]

When using UI Toolkit, you have to specify that you want to update a certain element, I don't think the same applies to the default UI elements

[fiery geyser]

that i want to update a specific element?

[cold briar]

yeah

[gray mural]

the same size as before or after resizing?

[fiery geyser]

before

it doesn't resize what i instantiate

[cold briar]

I added something that I had missed on the video and now I have less memory leaks, but I still have the ones the popped up since I created the project

[jovial salmon]

Managed to force Assembly-CSharp.dll to generate (seeminly by making a new empty c# script)... but it's still failing to produce update.txt

[gray mural]

idk, you should safe resized value somewhere

probably in PlayerPrefs or json if you gonna e.g. move scenes or whatever

[real comet]

What's the best way to make a multiplayer physics based game sync properly? It's turn based to latency isn't much of a problem, but collisions look either goofy because of interpolation or choppy when I use network transform. I am using normal physics rn but its not deterministic so the server sync is really visible which I don't really want

Using Netcode for GameObjects

[somber nacelle]

#archived-networking

[latent latch]

Could be some fighting with ownership between client and server, but yeah #archived-networking

[real comet]

Ah, thanks for the redirection

[soft shard]

What might be a good way to handle logging with an object pool? (and by "good" I mean least I/O work without missing logs) Would it make sense to use a StreamWriter thats always open for the duration of the game and periodically writes a batch of logs, or on every single new entry or when the pool recycles the oldest entry? Should I make a new streamwriter and close any previous for every log? Or would there be a better approach in general? For context, im working on a logging system for a Windows build so I can see Debug.Log happen in game and when certain events trigger, so sometimes it could be writing logs every frame or sometimes just a few every so-often

[vague jolt]

I have many game object with a script inside, thats script is called snapToGrid, if i get the reference of one gameObject and get his component and do snapGrid.snap(); is the function snap called only for that gameobjct script ?

[leaden ice]

it's called on the object you called it on

When you paint your house you are not painting every house in existence.
When you fill your car with gas, you are not filling every car in the world with gas

[vague jolt]

yeah but unity is not as straight forward as paiting houses

[leaden ice]

it is

[vague jolt]

arguable

[leaden ice]

When you understand it it is

Object oriented programming is just that

there's an object

you are calling a method on the object

not on the concept of a SnapToGrid

but that particular SnapToGrid

[vague jolt]

because i am getting this error
NullReferenceException: Object reference not set to an instance of an object
snapToGrid.snap () (at Assets/Script/snapToGrid.cs:43)
ObjectPlacer.Update () (at Assets/Script/ObjectPlacer.cs:97)

And i don't get why

[leaden ice]

A variable you are dereferencing on line 43 of snapToGrid.cs is null

[vague jolt]

        if (snapGrid != null)
        {
            snapGrid.snap();
        }

but i am checking if that thing is null

[leaden ice]

show your full script

[vague jolt]

can i send the github scripts

?

[leaden ice]

is this snapToGrid line 43?

Or is this ObjectPlacer line 97

I think it's ObjectPlacer line 97

[leaden ice]

sure

[vague jolt]

this is the script with the function
https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/snapToGrid.cs

[leaden ice]

if (objectPlacer.instantiatedStructure == gameObject)

[vague jolt]

this is the script caling the function
https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/SaveFileGenerator.cs

[leaden ice]

this is line 43

so objectPlacer is null

[vague jolt]

but the game object always exists

thats why i am confused

[leaden ice]

irrelevant

objectPlacer is null

not gameObject

[vague jolt]

but i never disable the script

[leaden ice]

so?

what does that have to do with anything?

[vague jolt]

how can it be null

[leaden ice]

it was either never assigned, or it was assigned to null

[vague jolt]

    void Start()
    {
        insideX = (x % 2) / 2f;
        insideY = (y % 2) / 2f;
        outsideX = -insideX;
        outsideY = -insideY;
        objectPlacer = GameObject.Find("Controller").GetComponent<ObjectPlacer>();
    }

here is clearly declared

[leaden ice]

that's not a declaration that's an assignment

And the right side of that can be null

GameObject.Find("Controller") could return null

and so can GetComponent<ObjectPlacer>()

[vague jolt]

yes but the script works, is just when the gameobject is instanted that it returns the error, than it works as intended

[leaden ice]

Either you don't have an active object in the scene named "Controller", or that object does not have the ObjectPlacer component on it

[leaden ice]

which GameObject? This is vague.

[leaden ice]

show the full stack trace of your error

it could also be you are calling the snap() function before Start runs

[vague jolt]

that could be

[leaden ice]

this is not the error

click on the error

to see the full stack trace at the bottom

[vague jolt]

NullReferenceException: Object reference not set to an instance of an object
snapToGrid.snap () (at Assets/Script/snapToGrid.cs:43)
ObjectPlacer.Update () (at Assets/Script/ObjectPlacer.cs:97)

[leaden ice]

so where is ObjectPlacer getting the snapToGrid reference from?

[vague jolt]

this is problably the problem, how i check if start runned?

[leaden ice]

show the ObjectPlacer script

[leaden ice]

no I don't think this is the problem based on the fact that it's happening every frame

[vague jolt]

sorry i sent before the wrong script

https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/ObjectPlacer.cs

[leaden ice]

I think you're ah yes ok

this is definitely the proble,m

you're calling snap right after you instantiate it

that will be well before Start() runs

[vague jolt]

makes sence

[leaden ice]

Simple fix here is take this:

    void Start()
    {
        insideX = (x % 2) / 2f;
        insideY = (y % 2) / 2f;
        outsideX = -insideX;
        outsideY = -insideY;
        objectPlacer = GameObject.Find("Controller").GetComponent<ObjectPlacer>();
    }```

and just rename that to Awake()

[vague jolt]

whats the difference ?

[leaden ice]

Awake will have run already by the time Instantiate returns

it runs as the object is created

[tropic quartz]

Awake happens before start. Like... awake happens on all existing objects first, before start runs on anything afaik. And then Update.

[vague jolt]

yes problem fixed

thanks you really much

[leaden ice]

To be honest I would probably also just remove this:

        //before placing the structure is important to make it snap so we are sure that is actually placed
        if (instantiatedStructure != null)
        {
            instantiatedStructure. GetComponent<snapToGrid>().snap();
        }```
and put this in snapToGrid:
```cs
void OnEnable() {
  snap();
}```

[vague jolt]

not that is needed because when i place the structure it needs to do the math for collision

my code is horrible so i am using the actuall transform.position and it happened that the game object was not snaped before

so it would mess every thing up

so i just run snap before placing it

[red sapphire]

Hi there, I am currently trying to implement photon into my openxr project and I have the head linked up, however my hands are in the wrong position and rotation. The hands with the prefab and my xr hands are also rotationally and positionally aligned to each other. Here is my scrpt to set the positions:
`using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR;

public class NetworkPlayer : MonoBehaviour
{
[SerializeField] private Transform head;
[SerializeField] private Transform leftHand;
[SerializeField] private Transform rightHand;
// Start is called before the first frame update
void Start()
{

}

// Update is called once per frame
void Update()
{
    MapPosition(head, XRNode.Head);
    MapPosition(leftHand, XRNode.LeftHand);
    MapPosition(rightHand, XRNode.RightHand);
}

void MapPosition(Transform target, XRNode node)
{
    InputDevices.GetDeviceAtXRNode(node).TryGetFeatureValue(CommonUsages.devicePosition, out Vector3 position);
    InputDevices.GetDeviceAtXRNode(node).TryGetFeatureValue(CommonUsages.deviceRotation, out Quaternion rotation);

    target.position = position;
    target.rotation = rotation;
}

}`

[leaden ice]

Are you saying there's a networking problem here, or you have a problem getting the hands aligned to the VR controllers?

[red sapphire]

Its just to do with the hand alignment

All of the positions in the unity editor are at 0,0, as shown by the second image

in the editor they are fine

[leaden ice]

huh?

is there a difference between "editor" and "unity editor"?

it's unclear which image is the "correct" thing and which is wrong

and what photon has to do with it

you should start by just looking at the hand GameObject in scnee view with tool handle rotation set to Local first

to make sure the object itself is oriented properly

perhaps your 3D model is imported incorrectly for example

[red sapphire]

it is the same 3d model, how do I set the gameobject to local?

[leaden ice]

set tool handle rotation to local by selecting it in the scene view overlays

or pressing X to toggle between local and global

assuming thats what you mean by "set the gameobject to local?"

[red sapphire]

btw to be more clear on the right hand image, the left hand is the xr hand and the right is the photon prefab hands, its just showing that the rotations are the same in both. the left image is showing how the rotation in the photon hand is dramatically different to the rotation in the xr hand, despite them having the same rotation before i press start game

[red sapphire]

I am just saying I dont think it is a problem with how the prefab and xr components are set up, more to do with how they are alligned together in the code

[shadow laurel]

I am attempting to allow my game to register if there is a controller connected, or if there isn't to just use keyboard inputs. But the controller connects, disconnects, then reconnects, but no input from the controller is registered. If I unplug the controller it still registers as connected, but I can still control it from keyboard, unlike what I wish to do which is disable keyboard inputs in the game when a controller is plugged in.

I am using the unity manual code for detecting controllers as seen below
IEnumerator CheckForControllers() {
while (true)
{
var controllers = Input.GetJoystickNames();

            if (!connected && controllers.Length > 0) 
            {
                connected = true;
                Debug.Log("Connected");
        
            } else if (connected && controllers.Length == 0) 
            {         
                connected = false;
                Debug.Log("Disconnected");
            }

            yield return new WaitForSeconds(1f);
        }
    }

and this is my code for registering inputs

    private void OnEnable()
    {
        if (playerControls == null)
        {
            playerControls = new PlayerControls();

            if (connected == true)
            {
                playerControls.PlayerMovement.Movement.performed += i => movementInput = i.ReadValue<Vector2>();
                playerControls.PlayerCamera.Movement.performed += i => cameraInput = i.ReadValue<Vector2>();
            }
            else if (connected == false)
            {
                playerControls.PlayerMovementKeyboard.Movement.performed += i => movementInput = i.ReadValue<Vector2>();
                playerControls.PlayerCameraKeyboard.Movement.performed += i => cameraInput = i.ReadValue<Vector2>();
            }
        };

        playerControls.Enable();
    }

please help

[heady iris]

!code

[tawny elk]

Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

[heady iris]

How do I compute a renderingLayerMask? I don't see any obvious equivalent to LayerMask.GetMask().

https://docs.unity3d.com/ScriptReference/Renderer-renderingLayerMask.html

i can just OR together some bitshifted stuff, but it's kinda gross

[novel kayak]

Help me please

[potent sleet]

btw you can just set parent inside the instatiate method

[heady iris]

is that actually the correct line number? it looks fine

it would be a problem if you were doing MapZone.transform.SetParent

[potent sleet]

this is only happening in playmode yes?

I think you're setting the prefab parent and not the actual instantiated MapZonep

[somber nacelle]

are you perhaps calling the createleftMap method on a prefab?

[heady iris]

Ah, that would do it.

[smoky pike]

https://paste.ofcode.org/sHyTXzdL6hPfwF2XFL2KY3
I have the following code where in the start screen(containing text), the user presses on the screen "tap to start" to begin the game. Once this happens, I want to instantiate all the objects with the tag of "Dot" with a 1 second interval. If the player presses the wrong dot, they die, and a tap to restart screen shows up, resetting the entire scene.

Problem: when the player dies, i want the tap to restart screen to stay there until the user taps on the screen again to restart. Right now, once the player dies, the scene gets reloaded immediately and the restart text doesn't show up

[potent sleet]

use the coroutine you have

right now it's not doing anything

[smoky pike]

the coroutine is instantiating the dots with a one second interval

[potent sleet]

that coroutine is literally doing nothing

it waits 1 second once it runs but doesn't actually do anything after 1 sec

coroutines run async they wont pause the method you ran it from

unless it was a coroutine as well and using yield

you're just creating a new routine each dots iteration

but its empty

[smoky pike]

oh how would I fix that?

[potent sleet]

don't put it in a loop first of all so you 're not just creating a bunch

IEnumerator DotTimeGap()
    {
        yield return new WaitForSeconds(1.0f);
//Logic that needs to wait 1 second 
//SumMethod();
    }```

if you want a continuous running thing then use a while loop

[novel kayak]

@potent sleet I've tried to set the MapZonep = Instantiate(MapZone,position*2, Quaternion.identity,transform);

and now i get another error:

Cannot instantiate objects with a parent which is persistent. New object will be created without a parent.

And yes the error occur only on playmode.

@somber nacelle It has the same issue

Sorry for the late response but I've tried to find solutions.If i dont set any parent to the object I won't get errors , but the instantiation won't have any parent,and that's wrong in my case.

[somber nacelle]

yeah you are 100% calling the method on a prefab. you need to get a reference to the instance of the component that has the createleftMap method on it, then call the method on that instead of on a prefab

show the code where you are calling that method. please share the entire class in a bin site !code

[tawny elk]

Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

[balmy radish]

I have a question about materials and shaders
Anyone has time for help?

[somber nacelle]

first: https://dontasktoask.com/
second: this is a code channel

[balmy radish]

Wait in which Channel do i have to ask a question about Mats?

[somber nacelle]

#🔎┃find-a-channel has a list of all channels and their purposes

[balmy radish]

oh thx ^^ n sry for dat

[fading trail]

should i make a voxel engine via using a 2D array noiseMap and then evaluating the height based on an AnimationCurve
OR
use an array that gets all dimensions of the map via noise and then store that
OR
should I use the first for the surface and the latter for the underground

[smoky pike]

hmmm the restart issue still seems to persist. I think it's because the user taps on the dot, that touch is considered to be Touch.End, causing the scene to reload and the restartText to not appear

[potent sleet]

I was just poointing out something, I didnt see the any of the Tap parts

[smoky pike]

So when the user presses on a "bad" dot, the restart text doesnt show up at all

[lethal tusk]

how can I search for a word in a json file?

[smoky pike]

ah

[fading trail]

what editor r u using

[uneven gulch]

yo im new to coding and game development and i might have a few dumb questions to ask if any1 could help lmao

[potent sleet]

in code or with an app ?

[lethal tusk]

in code while game is running

[potent sleet]

can you show/describe the issue a bit beter im confused on what u asked

[lethal tusk]

i want to know if there is some data exist or not, if not make some default data

[potent sleet]

maybe read the json text and search the string

File.ReadAllText
iirc

or ReadAllLines

[smoky pike]

so basically I "tap to start" the game, once I do, the dots instantiate with a one second delay, the user has to press on the "good" dots. If the user presses on a "bad dot", a "tap to restart" text shows up. Once the user taps the screen to restart, the original scene reloads - so they can "tap to start" again. However, if I press on a "bad" dot, the restartText doesn't show up, and the scene ends up reloading

it's something to do with the Touch.End and Touch.Began but I can't find a solution

[lethal tusk]

basicly i want to know is it the first time game run by the player or not?
is there an easyer way instead of checking the json file?

[potent sleet]

put the load scene in a delay with coroutine

put a bool so user can no longer click or anything after coroutine has initiated

[somber nacelle]

are you shipping the json file with the rest of the game files? if not then the file not existing will tell you whether it may or may not be the first time it was run. otherwise you can add whatever default value you'd like into the json file you ship

[smoky pike]

ok thanks

[potent sleet]

remmeber any method/thing you want delayed always goes AFTER the WaitForSeconds part

[lethal tusk]

im not shiping the json file, its my save json file. I wrote a function that need some data from the json file to work, but if run the game for the first time that data wont be exist

[somber nacelle]

exactly that data won't exist. so you just create it with the default data you want. literally just check if the file already exists, if not then you know it doesn't exist and needs the default value or whatever it is you're doing

[lethal tusk]

so I have a script to handle all the save and loading stuff, should I make the default vales there? cuz there i have a line that check if the dir is exicts or not, if not it will make one, maybe i can just use that if statement to config the default data

[somber nacelle]

sure, that's one way to do it. yeah

[lethal tusk]

thanks a lot

[lethal tusk]

sorry to bother
this is my json file after the first run:

{
    "Data1": {
        "highScore": 1,
        "coin": 0
    },
    "Data2": {
        "selectedCube": 0,
        "cubeList": []
    }
}

I want that cubeList to have some values in it, some bool values. the default values are true, false, false etc. is there a way to config that so I can have those values like other variables

instead of going that way that i change the json file in the first run

[somber nacelle]

it looks like either an array or list. so when you create the instance of the object you just create the array or list and fill it with your desired values. you do this before you serialize the object to json

[lethal tusk]

you mean where i create the array if list in the first place?

[somber nacelle]

probably? i don't really have the full context so i couldn't say for sure

i would personally just do it in the object's parameterless constructor (assuming this is a class not a struct)

[lethal tusk]

I'll try, thanks anyway

OnEnable comes first or Start or Awake?

[somber nacelle]

Awake then OnEnable are called immediately upon instantiation in that order, Start happens later

i do hope that question was unrelated to (de)serializing json since you shouldn't be serializing monobehaviours

[lethal tusk]

thanks

Im serializing some data like score and stuff that are in the GameManager script, all other sava load system are in non mono behaviours scripts
Is it wrong?

[somber nacelle]

depends, are you creating some other object that contains the data you are serializing or are you actually serializing the GameManager class itself?

[lethal tusk]

I have a struct in gamemanager script, Im serializing that

I make a new Objet out of that, save data in it and serialize it

If it effect on performance i dont really care cuz the project is not that big and this would be my first project with proper save load system

[somber nacelle]

ah lovely then you can't even use a parameterless ctor for it. why not make it a class instead?

[lethal tusk]

i mad a big mistake judging by the "lovely"

[tropic quartz]

To explain a bit, the way that waitforseconds works is that as the game reads code line by line (oversimplification maybe but ye) it will stop at that pause part until enough time passes, then runs stuff below.

It doesn't like... pause everything in that script.

So you'd probably want something to happen after that pause ends.

[dawn nebula]

Hey so I'm noticing that as a default (no material), unity will render both the front and back faces of quads/sprites. Is there a way to change this behaviour?

Or specify to certain sprites to only render backface/frontface?

[somber nacelle]

i mean you're doing it right by (de)serializing a plain c# object, but the way you've got it set up is you'd need some other object to construct all of your default data and pass it to the object when it is created (either via parameterized ctor, or by manually assigning each property after calling the ctor). This is just fine if that's how you want to do it, i personally would prefer to just set up the default data for the object in its own parameterless ctor which would require it being a class since unity doesn't support c# 10 yet

[vague jolt]

Library\PackageCache\com.unity.2d.common@7.0.2\Path\Editor\EditorTool\PathEditorTool.cs(108,30): error CS0115: 'PathEditorTool<T>.gridSnapEnabled': no suitable method found to override

I started my unity project and i ghot this error

[lethal tusk]

thanks for your explaintions, to be perfectly honest i dont know what is parameterless ctor, I guess i will just stick tomy solution for this project but i will defently look into what you just explained.

[vague jolt]

i think i got it

i opened the game using an older version

[somber nacelle]

it's a constructor with no parameters
https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/using-constructors

[wise hollow]

Can't wait for dots raycast tutorial

[lethal tusk]

how can i find a word in a string of words?

[lean sail]

find it as in check if it exists, find its index, or something else?

[lethal tusk]

find if its exits or not and returns a bool

[lean sail]

String.Contains() should be fine then

[vague jolt]

    public void save()
    {
        if(loadSaving == true)
        {
            return;
        }

        loadSaving = true;

        string save = JsonUtility.ToJson(saveJSON, true);
        File.WriteAllText(Application.dataPath + "/save.json", save);

        loadSaving = false;


    }

    GameObject structure;

    public void laod()
    {

        if (loadSaving == true)
        {
            return;
        }

        loadSaving = true;

        foreach (Transform child in transform)
       {
            Destroy(child.gameObject);
       }

        //read save file
        string save = File.ReadAllText(Application.dataPath + "/save.json");
        SaveJSON loadSave = JsonUtility.FromJson<SaveJSON>(save);

        for(int i = 0; i<loadSave.entities.Length; i++)
        {   
            foreach(GameObject prefab in prefabs)
            {
                if (prefab.tag == loadSave.entities[i].name)
                {
                    structure = Instantiate(prefab.gameObject);
                }
            }
            structure.transform.parent = transform;
            structure.transform.position = new Vector2((float)loadSave.entities[i].position.x, (float)loadSave.entities[i].position.y);
            structure.GetComponent<RotateSprite>().rotation = loadSave.entities[i].direction;
        }

        saveFile();

        loadSaving = false;
    }

THese two function save and load, but if you press the two buttons fast enoght all the entitities accumulate, what can i do to prevent it ? my bool state checking does not work..

[lethal tusk]

thanks

[lean sail]

the bool does not work because its set true, logic happens, then its set false. the other function will not run async unless you have extra code hiding somewhere

[vague jolt]

i actually found that there is another bug

[lean sail]

im not entirely sure what "entitities accumulate" means

[vague jolt]

i save 5 and then there are 10, but is afctually another problem causing that

not pressing fast

[lethal tusk]

how can I give value to a bool[] when its created? I mean when I craete it with this code:

public bool[] cubeList;

like this which we give value to a int:

public int number = 10;

[idle iris]

is there any known bug in Unity that produces white screens on nvidia gpus:?

seems to only render overlay uis

[vague jolt]

ok so the problem is the following, when i load the save file first i delete all the structure, then i place the new one based on the save file and then lastly i call a function that stores all the instantiated structrue in a list. The problem for some reason is that it does not remove the reference to the old structures, I know it should work because the same function is called when i destroy or place structreu but does not work when is called by the function load.

Save file generator, where the laod and save functions are, there are two save function, one to file one to the list
https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/SaveFileGenerator.cs

Place structrue, here the save to list function is called right (saveFile(), sorry for terrible and confusing name)
https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/ObjectPlacer.cs

Destroy strcutures, here the function is also called right
https://github.com/starlinetor/Factorio-Logic-Simulator/blob/main/Assets/Script/DeleteOnRightClick.cs

The immage is what it looks like after load is called

[somber nacelle]

either new bool[numberOfInidices] which creates an array of bools all set to false (since that is a bool's default value) or you could use a collection initializer to create the array with specific values
https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/object-and-collection-initializers
or if you create the array in the constructor for the object (assuming this is still for the object you are serializing to json) you can use a for loop after instantiating the array and assign values

[knotty sun]

that question implies you have no idea what an array is

[lethal tusk]

thanks all

[vague jolt]

like if a place or add a structure the function is called correctly and the old reference are removed

[ashen yoke]

its says Missing, means it was destroyed

you just didnt clear the list

[vague jolt]

but i did

wait

[ashen yoke]

then you cleared the wrong list, or at a wrong time, or on the wrong object

[vague jolt]

        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }

This is how i destroy all the childs, is this working even if is called using abutton ?

[ashen yoke]

again, they are destroyed

you didnt clear the list that you show in your screenshot

a list wont magically know to remove destroyed objects

[vague jolt]

GameObject.Find("Structures").GetComponent<SaveFileGenerator>().saveFile();
This is called at the end of the load , this is after they are deleted

first thing the saveFile functon does is
Debug.Log("Saving");
saving = true;
structures.Clear();

I get it something is wrong here but where

[ashen yoke]

order of ops, wrong list, wrong time of clear

somewhere there

[lethal tusk]

this solved an issue that ive been wasting time on it for like 2 hours

[vague jolt]

        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }

        //read save file
        string save = File.ReadAllText(Application.dataPath + "/save.json");
        SaveJSON loadSave = JsonUtility.FromJson<SaveJSON>(save);

        for(int i = 0; i<loadSave.entities.Length; i++)
        {   
            foreach(GameObject prefab in prefabs)
            {
                if (prefab.tag == loadSave.entities[i].name)
                {
                    structure = Instantiate(prefab.gameObject);
                }
            }
            structure.transform.parent = transform;
            structure.transform.position = new Vector2((float)loadSave.entities[i].position.x, (float)loadSave.entities[i].position.y);
            structure.GetComponent<RotateSprite>().rotation = loadSave.entities[i].direction;
        }

        GameObject.Find("Structures").GetComponent<SaveFileGenerator>().saveFile();

Yes but it should wait for all the childs to be destroyed then go for instantiating the new one and then update the list

[idle iris]

I forced it to run on AMD integrated graphics and it works; apparently it doesn't work on nvidia at all, I've tested 4 systems

[vague jolt]

unless it does not wait to destroy them

[ashen yoke]

you dont have to wait

destroy, clear, continue

[vague jolt]

doing thisn
foreach (Transform child in transform)
{
Destroy(child.gameObject);
GameObject.Find("Structures").GetComponent<SaveFileGenerator>().saveFile();
}
does not change anything

[ashen yoke]

you are doing random actions

[vague jolt]

that functions when claled as the first thing it does is clear the list

I was right

[vague jolt]

Destroy does not stop the stack

it waits for the end of the frame

meaning that all the code was exected before the game objectrs were destroyed

[somber nacelle]

correct, Destroy only queues the objects for destruction at the end of the frame. not only that but destroyed objects are not automatically removed from lists, you do have to do that yourself somewhere

[vague jolt]

i changed to DestroyImmediate and now they don't appear in the list anymore

you sure they get removed by default because my problem was exactly that

[somber nacelle]

do not use DestroyImmediate for this either
https://docs.unity3d.com/ScriptReference/Object.DestroyImmediate.html

This function should only be used when writing editor code since the delayed destruction will never be invoked in edit mode. In game code you should use Object.Destroy instead. Destroy is always delayed (but executed within the same frame).

[vague jolt]

But they say that you should not use that function so you know a better solution ?

[lean sail]

Destroy has no idea what lists contain the object

[somber nacelle]

just use Destroy and make sure to remove the destroyed objects from the list

[vague jolt]

I just directly clear the list at this point i guess

[ashen yoke]

yes destroy is deferred til the end of frame, but you dont have to wait for it

[vague jolt]

Ahh know i got it

[ashen yoke]

from the moment you marked the object for destruction you can safely assume its gone

for most cases

[vague jolt]

ok ok my bad i didn't get what you meant

i did this:

        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }

        yield return 0;

is this fine ? so iam sure that the gameobject are gone and i can save normaly.

[lean sail]

not sure what the goal is, but just yield return null; instead for the frame

[vague jolt]

the idea is i wait 1 frame so the objects are gone

[lean sail]

wait for what though? is there code after this

[vague jolt]

yes

[vague jolt]

this

[lean sail]

this still wont affect your list

[quartz folio]

yield return 0 should be yield return null if you want to wait a frame.

[vague jolt]

done

is there a problem with return 0 ?

just for curiosity

[quartz folio]

it seems like a thing you just made up

[primal fern]

hi all 👋 just wondering if anyone has advice on how to find talented freelance unity multiplayer devs. i saw #📖┃code-of-conduct redirects to official unity forums, but honestly those posts (and their responses) are uninspiring

we're a VC-backed startup and have the capital, building out some really interesting stuff

[vague jolt]

i found it here https://forum.unity.com/threads/how-to-wait-for-a-frame-in-c.24616/

[vague jolt]

this is for asking about code second use fiver

[lean sail]

scrolling down, people say null in that same thread further below. But either way i dont think this is what you really want to do

because now all the game objects are just null, but the list still hasnt changed

[vague jolt]

my project is like 87% duck tape and glue, i am a terrible programmer 🙂

[quartz folio]

I am not sure why they would suggest that, it's not in any of the docs. It would require the int to be boxed, which means it allocates, unlike yielding for null

[vague jolt]

don't know is just the first thing i saw and it worked.

[primal fern]

fiverr quality can vary widely, we're looking for more proven talent and paying more for the right collaboration

which channel here on discord is more appropriate for getting this advice?

[vague jolt]

but indeed null makes more sence

[vague jolt]

This is for aksing about code help not this kind of stuff

just kidding

i am stupid

i just read the description

[quartz folio]

Advertise on linkedin, discords that allow it, especially ones that are based in your local area. Make yourself known to the local development scene and find resources through them. Random posts on huge platforms is not a great way to find people with any sense of quality or reliability.

[primal fern]

thanks @quartz folio for the record i'm not trying to find someone here, but rather getting advice from engineers here who know of the best channels through first hand experience

for instance, if you told me "Unity job forums are shit, nobody good checks those" then that would be valuable info

[quartz folio]

Nobody checks the forums, nobody checks large nebulous platforms

[lean sail]

realistically you'll want people to apply for your posting (not on the forums, like linkedin as vertx said), rather than looking through forums for individuals. Assuming this is an actual position

[void basalt]

I know netcode front and back. I can write your company a AAA quality netcode engine for unity from scratch. We're not supposed to advertise in these channels, so you can DM me if you're interested.

[quartz folio]

Continue this in #💻┃unity-talk seeing as it's cross-posted there anyway (please do not crosspost).

[primal fern]

thanks @lean sail i am pretty unconventional, and prefer to seek out the talent rather than sift through people applying to our job post. i have moved the discussion to #💻┃unity-talk because i'm guessing that's the more appropriate channel

tysm all 🙏

[primal fern]

i originally posted here, realizing it was the sub-optimal place. happy to delet msgs

[quartz folio]

It's fine, just continue the convo there if anyone wants to, but it's pretty much been answered imo

[novel kayak]

If anyone wonder how I did it

[somber nacelle]

#archived-code-general message

[somber nacelle]

also this is a pretty poor workaround for an issue that is easily solvable by getting a reference to the correct object

[dense tusk]

any of you lads have advice on how i can create an object moving system where i can pick up objects without them clipping through other objects, or spazzing out when touching another object? i have an idea on how i can have it keep a target position and keep it's rotation relative to the camera, but i don't know how to go about working with collision.
my research has mentioned i need to use velocity with rigidbody physics, but i don't understand how to implement that. the closest example i could find was a little difficult to follow

[earnest hare]

Hi, I am going to use unity iap for the first time. I heard that the codeless IAP is broken, is that right? so i have to implement the iap via coding?

[vague jolt]

unity should handle that by defualt, just add a rigid body and a collider to the game objects. The only important thing is that you need to move what you want to have physics using velocity or forces and not by just chaning the transform position

there are many setting depending what you want to do but it should still work out of the box even if not in a hoptimal way

[lean sail]

you'll still run into issues with it spazzing out if you do that, especially if you are trying to keep the object at a target position

[lean sail]

This depends on the game mechanics, you cant have the object not clip through objects, touch other objects (collisions), and be kept at a target position 100% of the time, this is contradictory.
Do you want there to be collision even?

[dense tusk]

i do. my objective is to have it try to correct itself to a target position & rotation, while getting altered by anything that gets between them, such as picking up a book and trying to drag it on a table, but getting hung up on an immovable object

and then i reckon if the distance to correct is too high it will just stop trying and fall, and then the selection will be null, but i can figure out that part myself

[vague jolt]

what about something like procedural animations ?

[lean sail]

Im not sure if others do this but you might be able to use a spring joint for this. Otherwise just use a collider and rigidbody with no gravity and try to always move it towards the target position. That way its more of a flying object.

[vague jolt]

you keep the actuall object in a fixed position and then move the sprite around to not clip

or you could use forces to keep it in place, this way the object would not clip because if a force makes it collide on a structure the force does nothing, it would also look a bit more realistic maiby

[lean sail]

separating the actual object and visual sounds horrible for this..

honestly i dont know what you mean to use animations for this

[dense tusk]

i’m not using sprites anyways. this is being done in 3D

[vague jolt]

i mean the thing you render

sorry i just use 2d i don't know the name for 3d

like what you want to do is something like slime rancher ?

[dense tusk]

lol all good. appreciate the suggestion regardless

[vague jolt]

like the gun that sucks stuff and keeps it there ?

[dense tusk]

is there a function to do that? like TryMoveTowards or something?

[dense tusk]

it’s more comparable to the game Amnesia or Gmod

[void basalt]

If you're trying to replicate a garry's mod physics gun, then you should be modifying rigidbody velocity to move the grabbed object wherever it needs to go

[vague jolt]

this could help maiby
https://discussions.unity.com/t/prevent-grabbed-object-from-clipping/215285

[lean sail]

for the rigidbody? you can add force
or do you mean the joint?

[lean sail]

i already suggested what the comment says

[vague jolt]

or another thing you could do is the same that some fps do for guns

you render the cube separated from the world in such a way that it does not appear to clip

[void basalt]

that's still going to look very weird

[vague jolt]

even if is tecnically clipping

[vague jolt]

you could use perspective rules to scale it when it clips so it does not look to weird?

[lean sail]

thats going to be really annoying to setup, especially since they want it to be colliding with objects so its not* going to be clipping with rigidbodies

[void basalt]

The best way is to just to simply point the velocity wherever it needs to go

I'm almost certain this is how gmod does it anyways

it can be created with a basic damper system. Far away from the point? More velocity. Close to point? Less velocity

[lean sail]

thats also why i suggested spring joints, but maybe spring joint would have unintended results

like if it goes out of bounds, the force might go really high

[vague jolt]

i feel like burt idea of just moving ity with a force/velocity to a fixed point seems the easiset to implement

[lean sail]

🤔 i did also say that while u were suggesting random solutions

[dense tusk]

either i suppose, i was more referring to a rigid body tho

[vague jolt]

my bad

[lean sail]

you should experiment with rigidbody and addForce(). its really something you need to see to understand in how it moves

[dense tusk]

ohhh you sure can determine the direction with addforce can’t you

[lean sail]

you add a force in a direction yes, which changes the objects velocity. The forcemode* you use will have a different effect

[dense tusk]

period. that might be just what i need to look at. i’m so slow i’ve been struggling with that concept for days and it’s like a day one function that i forgot 😩

[void basalt]

You would get better results manually modifying the velocity

if you want something snappy

[weary rose]

does anyone know how I can make it so that when i switch cameras, the player doesn't doesn't like whip around? What i mean is, when the player is in the free look camera mode and the camera and player model are facing in oposite directions. then when the player switches to the backview, the player model faces where the free look camera was facing before

[lean sail]

just ask your question here, no ones gonna give 1 on 1 lessons for free

[dense tusk]

@lean sail @void basalt just came back to say thanks for the input. y'all both pointed me in the right direction and i'm much closer to getting what i want now

asking questions is how you learn lad

[lean sail]

re-read my message lol, just because u want to learn doesnt mean ppl will teach u for free

[dense tusk]

you're asking someone to teach you

not a question

[lime widget]

This is how my character looks (the 2 rectangles above are the leg formed from 2 parts. I will multiply the leg after I finish this). How can I add bones to this?

[lean sail]

you should look at a tutorial for this, this also isnt a code question

it should be called "2d rigging"

[lime widget]

I tried to look for a tutorial like this but they all are using sprites. I am using only game objects. Sorry about the code part.

[rain minnow]

sprites are GameObjects . . .

a SpriteRenderer is a component attached to a GameObject. it has a sprite property where a 2d sprite is placed . . .

[gentle rain]

Could I get some help with this

my hand Model is supposed to look like this when I pick up a Thompson Mag but when I try to pick it up it looks like

That is with my hand just normally straight

and once I let go it goes back to normal

[sweet current]

I hope you like math
https://math.stackexchange.com/questions/1611308/best-fit-line-with-3d-points
Python code: https://stackoverflow.com/questions/2298390/fitting-a-line-in-3d

[unborn pier]

linear regression

[lean sail]

the math really isnt hard, considering its all solved already. Just a matter of taking the algorithm

[lusty dune]

There should be a math function that makes a slope like that on graph, use it and add random range...

[unborn pier]

How do I post code

!code

[tawny elk]

Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

[unborn pier]

    {
        // Calculate the centroid of the dots
        Vector3 centroid = Vector3.zero;
        foreach (Vector3 dot in dotsList)
        {
            centroid += dot;
        }
        centroid /= dotsList.Count;

        // Calculate the sums of products for the covariance matrix
        float sumXX = 0f;
        float sumXY = 0f;
        float sumXZ = 0f;
        float sumYY = 0f;
        float sumYZ = 0f;
        foreach (Vector3 dot in dotsList)
        {
            Vector3 deviation = dot - centroid;
            sumXX += deviation.x * deviation.x;
            sumXY += deviation.x * deviation.y;
            sumXZ += deviation.x * deviation.z;
            sumYY += deviation.y * deviation.y;
            sumYZ += deviation.y * deviation.z;
        }

        // Calculate the covariance matrix
        Matrix4x4 covarianceMatrix = new Matrix4x4(
            new Vector4(sumXX, sumXY, sumXZ, 0),
            new Vector4(sumXY, sumYY, sumYZ, 0),
            new Vector4(sumXZ, sumYZ, dotsList.Count, 0),
            new Vector4(0, 0, 0, 1)
        );

        // Calculate the eigenvalues and eigenvectors of the covariance matrix
        covarianceMatrix = covarianceMatrix.inverse;
        Vector3 eigenvalues;
        Matrix4x4 eigenvectors;
        covarianceMatrix.Diagonalize(out eigenvalues, out eigenvectors);

        // The eigenvector with the smallest eigenvalue represents the direction of the best-fit line
        Vector3 bestFitDirection = eigenvectors.GetColumn(0);

        // The centroid represents a point on the best-fit line
        Vector3 bestFitPoint = centroid;

        // Now you can use the bestFitDirection and bestFitPoint to visualize or further utilize the best-fit line
        Debug.DrawLine(bestFitPoint - bestFitDirection * 100f, bestFitPoint + bestFitDirection * 100f, Color.red, 10f);
    }```

[fervent furnace]

linear regression will give you the line that fits input points..

[unborn pier]

Just populate with your list of 3d points

[lusty dune]

I meant something like this http://www.bristol.ac.uk/cmm/learning/videos/random-slopes.html

But lot simplistic

[unborn pier]

but like this

[lean sail]

did u write that up yourself?

[unborn pier]

no

I don't even know what a eigenvalue or covariance matrix is

[lean sail]

oh..i was gonna say i was impressed someone could be confident in their lin alg skills this much

[lean sail]

dont worry i did lin alg for 4 years in uni and i still couldnt tell u

[unborn pier]

I take lin alg next semester so maybe I'll understand a portion of it

[lean sail]

well i understood it, then upper year courses made it more complicated

[fervent furnace]

i already forgot all topics on stats i studied

[brazen reef]

quick question which i'm sure if obvious to those who know, i'm playing around with unity to learn and i'm working on learning raycasts, and my current issue is that dispite my best attempts, it doesn't seem to be registering:

 void JumpStart(InputAction.CallbackContext value)
    {
        Debug.Log("Jump Pressed!");
        
        RaycastHit hit;
        
        if (Physics.Raycast(
                transform.position,
                scanDirection,
                out hit,
                jumpScanDistance,
                0
            ))
        {
            Debug.Log("Did Hit");
            
            if(hit.transform.tag == "ground") {
                Debug.DrawRay(
                    transform.position,
                    scanDirection,
                    Color.green,
                    5
                );
            }
            else
            {
                Debug.DrawRay(
                    transform.position,
                    scanDirection,
                    Color.cyan,
                    5
                );
            }
            
            Debug.Log("Raycasted");
        }
        else
        {
            Debug.Log("Did not Hit");
            Debug.DrawRay(
                transform.position,
                scanDirection,
                Color.blue,
                5
            );
            Debug.Log("Raycasted");
        }
    }

[sweet current]

You know that something is not easy to understand when the people who use it don't find a better translation than half-german. ( eigenvalue /eigenvector )

[lean sail]

do you know what 0 is doing in your raycast?

(i know, just seeing if they know)

[unborn pier]

oops

[brazen reef]

is is the layer mask, i currently have it sent to 0, which is what the checkered ground below it is set too

aka, da default lol

[lean sail]

double check i guess if your ground is really on default, and visualize how far the ray is going by doing

Debug.DrawRay(transform.position, scanDirection * jumpScanDistance, Color.green, 5);

[quartz folio]

That's not a layer mask https://unity.huh.how/programming/raycasting/layer-masks

[brazen reef]

corrent, i meant the index for the layermask because it only takes in an int as an argument

at least from what jetbrains is telling me lol

[quartz folio]

Please just read my resource so you understand what a layermask is

[brazen reef]

no green either with the test for whatever reason

[brazen reef]

i totally get you/ that, i'm reffing to the unity docs which use a bitshifted int for their input here:
https://docs.unity3d.com/ScriptReference/Physics.Raycast.html

[quartz folio]

and what of it? You're using 0

[brazen reef]

maybe i'm missing something, but yee

[lean sail]

0 should work if its the default layer right? although i agree still should setup the layer properly
im dumb, its 3am dont judge me

[brazen reef]

yes, because i'm using my own layers, to my knowledge and what i see 8 is a value for somethign i have unassigned

[quartz folio]

That is not a bitmask, that is a layer index

you are not bitshifting based on that layer index, you are just passing 0

[brazen reef]

then why are they both called layers??

[quartz folio]

One is a layer mask, one is a layer

your mask looks like this:
00000000000000000000000

All bits are 0, ie. there are no active layers in your mask.

[fervent furnace]

you need something likes: (1<<index1)|(1<<index2)

[quartz folio]

Again, my resource explains this, how to make them, and also has another resource linked at the bottom that goes into them in extreme detail

[brazen reef]

okay, attempting to call it via a bitshift by pre-claiming it as a var seems to be giving similar results:

[SerializeField] LayerMask layerMask = 0<<3;

[quartz folio]

[SerializeField] LayerMask layerMask; and set the mask in the inspector

[lean sail]

0 << 3 is not doing anything also

[quartz folio]

bitshifting 0 will produce 0.

[fervent furnace]

0<<3=0b000000....

[brazen reef]

tbh never heard the concept of bitshifting so all completely new to me

[quartz folio]

good thing there was a resource explaining bitshifting on the very page I continue to talk about

[mystic yoke]

I wonder if @quartz folio has something that talks about bitshifting? 🤔

[brazen reef]

i read it, it just seems very vague/verbose so even though i read it, it sorta is just noise on a page to me

[fervent furnace]

you can image that you are puttin a one (or zero) at some positions in 32-bits int

eg 1<<2==0x0000 0004, 0x is hexadecimal form

[quartz folio]

You're going to have to be more specific, because otherwise it just sounds like you're not paying attention

[brazen reef]

i'm not trying to ignore that, more just it's talking about stuff in an abstract way that i don't follow well. it's like saying
"an engine is like a stick of tnt in a metal box", abstract enough they make sense, but the page itself fails to connect any dots for me to be more specific

[analog relic]

The problem is that an int can’t represent multiple layers. That’s why it needs to be a bit mask. Each bit in the bit mask represents if the layer is on or off. (Eg. 1010 means layer 0 and 2 are on) (that’s why the int “0” wasn’t working, because 0000… means all layers are off)

[brazen reef]

okay, i can understand that conept, i forget the name but it's basically a bit array

[analog relic]

Yup pretty much

[brazen reef]

0010 = 4 and all that

[lean sail]

0100 but yes

[brazen reef]

i was taught to read it left to right

[quartz folio]

big endian, little endian, programming is pain

[brazen reef]

something about left most being the input and the system counts up from their but i digress, my brain is a soup of other peoples knowledge lol

[lean sail]

oh, doesnt really matter. theres least and most signifcant notation

[brazen reef]

fair enough, well i learned whatever i said lol

okey, well, back to the og issue lol, here's now where i'm still sorta just spinning wheels or what have you because despite selecting that specific layer, and making sure the ground is that layer, it seems to be failing to register a hit

lines should be green/cyan if something is hit

ah, got it, simply issue with the ui scan distance being set to 0

well, thanks for everyones help, apprecate it and the education!

[lean sail]

when you debug draw ray, always make sure you multiply by the max ray distance (the debug i showed way earlier did this). It gets especially confusing when the visualization is not visualizing properly