archived-code-general

[signal moon]

ok, ill do it in the moment

!code

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[signal moon]

https://gdl.space/kifuwotova.cpp and https://gdl.space/yezurixapi.cs two main scripts

[tardy moss]

How do I merge a main with a building inside it so I can enter the building (both have collider along with the player controller) + remove the larger mesh parts where both meets ?

Is this something that is done with colliders/mesh filters settings or it has to be done by code ?

Tried to find unity learning mesh merging unity learning mesh overlap but couldnt find anything 😦

[lean sail]

Is this something you have to do at runtime? If not I would just do this in like blender, there is also the probuilder tool which has some functionality like this but it's kinda shit

[ashen yoke]

what do you mean by "a main with a building"?

main entrance?

[signal moon]

So it seems like rect transform is a problem, like it doesnt recognize it is on the object

Im sure the problem is in unity as it works well on autors project

[heady iris]

no, the problem is in your project.

If CardContainer isn't attached to an object with a RectTransform on it, then rectTransform will be null

[signal moon]

i know, i just meant it is in unity side not code

[tardy moss]

I have a free terrain that is a glTF I dont have access to the original mesh. It's not a unity terrain just a mesh with a collider I use to walk on. I want to put an underground cave throught one of the mountain on it but I cant enter it because the mountain block me and the mountain render over the entrance

everything else work except I cant enter the cave

cuz my controller collider collide with the terrain collider over it

[signal moon]

well, it is

[heady iris]

what about CardWrapper?

looks like that's the oen that's producing the error

[ashen yoke]

you probably could find a tool that removes the triangles that intersect some volume, its not exactly boolean operation, but simply remove tris at runtime

[signal moon]

i send this script as well

[ashen yoke]

unity terrain supports making holes in a similar fashion afaik

[heady iris]

I'm looking for the inspector for the object with CardWrapper on it

[tardy moss]

Im not sure how to convert the mesh to terrain either, I mean the mesh came with its own terrain textures I dont want unity to use its own terrain texture...

[signal moon]

Card wrapper is a script that attached to the objects that are childern of container during playtime

[ashen yoke]

yeah so im suggesting either writing a tool that removes tris yourself, or find it, or edit the mesh in any 3d package

[tardy moss]

until then I guess Ill just use a trigger zone with playmaker to teleport me until I find a solution

[heady iris]

Yes. I'm asking you to check that those objects have a rect transform on them

You could log a warning in the Awake method of CardWrapper to see if any instances are unable to find a rect transform.

[signal moon]

i did before asking

[heady iris]

That object does not have a CardWrapper on it.

[signal moon]

yes, bcs it is assigned in playtime

[heady iris]

Does clicking the first error highlight an object in the hierarchy?

You'll need to do that while the game is running

[signal moon]

yes, it does with container, but i checked it already

[mossy snow]

Awake doesn't run until the GO is active for the first time, so it looks like all but one of your CardWrappers is going to nullref. Does your tutorial also have all these objects inactive?

[heady iris]

Oh!

Yes, I completely blanked on that

Awake runs once the object is activated

(the component can still be disabled)

[signal moon]

actually it has them active

[heady iris]

log something in the Awake method to make sure it's actually running

you can also log the resulting value of rectTransform

[signal moon]

XDDDDD

thank you

[heady iris]

when in doubt, sanity check it with a log

[signal moon]

The problem was that i didnt actually know what to log

like i forgot the difference between start and awake

[arctic plume]

Does the renderer for a child object not get disabled if the renderer for the parent object is?

[ashen yoke]

no theres is no connection

[arctic plume]

Ok thank you

[glad plinth]

Is there a way to make it so i dont have to manually add each Element as its not just going to be one canvas layout but multiple for multiple games so itll be quite difficult to keep it managed like this

[leaden ice]

Well for one is the UI going to be the same in all of them?

If so you can just do this once. Make a prefab and reuse it.

You can also use prefab variants

as for things like PlayerX_Op - you can use an array, or just reference their parent object and iterate over them in code as needed.

[glad plinth]

no they'll all be differant differant games have differant data Like Rocket league doesnt need a KD and Operators ect

[heady iris]

I'm evaluating a spline's up-vector about 120 times per frame. It's incredibly slow -- I turned on Deep Profile, so this is exaggerated, but it's still doing an enormous amount of work.

Asking for the position and tangent is significantly less expensive. I have no idea why calculating the up vector is so particularly bad here.

I guess this is some kind of iterative process, but still, holy cow

I'm using the spline to position and rotate about ten transforms, and I had 12 instances of that thing in the scene here

[ashen yoke]

is that inside a job?

[heady iris]

No, it's run straight from managed code.

[ashen yoke]

back then i did tests and math lib was slower outside jobs than MathF

(quite a while ago)

[heady iris]

I just switched to using splineContainer.Evaluate instead of working on the spline directly, and instead of calling the three Evaluate* methods separately

if (splineContainer.Evaluate(splineTime, out var pos, out var tan, out var up))
{
    item.position = pos;
    item.rotation = Quaternion.LookRotation(tan, up) * offset;
}

roughly the same behavior

I didn't realize until now that you could burst this, so I'll give that a try

i'm just startled by how quickly this ground to a halt

[ashen yoke]

did you enable release mode?

[heady iris]

release mode for what?

[ashen yoke]

for the editor to see if any optimizations kick in

[heady iris]

oh, rather than being in debug mode

it's in release mode

also, hm you can't just throw an entire Spline into a bursted method

ah, you have to allocate a NativeSpline

[ionic adder]

Anyone know if methods that use a [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSplashScreen)] attribute run on the main thread? Or would there be a way to somehow to test that?

[heady iris]

I sure hope it does

my game controller wakes up with a RuntimeInitializeOnLoad method

[quartz folio]

Looks like it's rebuilding the whole curve, as if you've dirtied it somehow

[heady iris]

That is something I should have mentioned: I am deforming the curve every frame.

I'm guessing it'll be a lot happier if I don't do that

[rigid island]

doesnt unity pretty much have everything on main thread?

[quartz folio]

There might be a form of evaluation that doesn't rebuild the cache

Because the cache is useless if you're constantly rebuilding it

[heady iris]

ah, it pre-calculates a bunch of vectors, then?

[ionic adder]

yeah my understanding is that unity-provided methods run on main thread

[heady iris]

I wrote a script that "parents" each bezier knot to a Transform

so that the curve follows the transforms around

[rigid island]

You can also test it by storing current thread and compare with object.RefEquals

[ionic adder]

oh good idea, thx

[autumn field]

I'm working on a package that has some shaders. The shaders are not referenced by any materials since material instances are created at runtime by my code. This causes the shaders to be stripped from builds.

This package will be used in multiple projects and I don't to manually add the shaders to the Always Included Shaders list in the Project Settings. Is there a way to automatically ensure the shaders are included in builds?

I could generate a scriptable object that references the shaders and then reference the scriptable object from a something included in builds, or write a script that adds the shaders to include list automatically, but that all seems silly to have to do.

I also saw there was a [ShaderIncludePath] attribute, but it's obsolete :/

Is there a good way to automate including shaders in builds?

[heady iris]

ah, yeah, so whenever the cache is invalidated, it has to rebuild an array of up vectors

30 of them per knot

It looks like ISpline has a separate CalculateUpVector method that says it's "slow, but more precise"

and it looks like it doesn't interpolate between a pre-calculated array in the implementation

[thick terrace]

if you're creating materials at runtime, why not store a reference to the shader anyway? i assume you're looking them up by name at the moment

[autumn field]

Yea. In this case the shaders are used by a custom render feature. I just wanted to avoid users of the render feature having to assign the shaders by hand when the feature is first added and the references are null.

One solution I just thought of was to put the shaders in a Resources folder since resources are always included.

[heady iris]

Yes, this is a lot better. I'm also going to turn off the "spline aligners" when they are not needed (they're only used very infrequently, and I've had them running constantly)

gonna have to mess with Cinemachine a little to make its spline cart use the slower (and thus, faster) method

[late lion]

How about a custom editor for the renderer feature that automatically assigns the shader reference?

[late lion]

Otherwise, I'm not against the idea of using Resources for something like this. At least, if you can be confident that if your asset is present, it's likely being used and the shaders included are not too big or variant heavy.

[heady iris]

yeah, I lean towards Resources when it's something that'd be completely pointless to do by hand

[late lion]

You can also create a IPreprocessShaders build processor to conditionally strip the shaders, if you have some way to detect whether they are actually needed.

[heady iris]

every kind of "module" in my game (a MonoBehaviour that is attached to a specific entity (no, not the DOTS kind)) has an associated ModuleInfo scriptable object

it contains a name and description

the module just yanks the object out of Resources whenever it's needed (the name matches the module's class name)

this way, i can actually serialize the LocalizedStrings correctly

I wish Unity had a way to serialize static references to assets in the inspector.

[vivid remnant]

Can you access the methods within a script if that script is disabled?

[knotty sun]

yes

[heady iris]

Being disabled or even destroyed has no bearing on your MonoBehaviour class's code.

A disabled MonoBehaviour instance simply doesn't have a few messages sent to it (like Update and FixedUpdate)

A destroyed MonoBehaviour's code still works just fine. You just can't ask Unity for anything (like the transform of the object you're attached to)

[vivid remnant]

I built an interaction system that includes buttons that the player can press in order to open doors, make platforms move, etc.

So far I managed to implement simple buttons. You press them and they do their thing.

Now I'm trying to make buttons that you can only press once. If you try to press them again after that, they won't do anything.

[vivid remnant]

I see. In that case, is there any way I can make a button work only once without using a flag inside the script that's attached to it?

[heady iris]

A bool field is exactly how I'd implement that.

I guess the button component could destroy itself, but that sounds a lot more annoying to work with

[vivid remnant]

I see where you're coming from but to me, it seems like I'm making the computer perform needless work by using a flag. It's as if I'm making it check for a condition that I'm aware will never again be satisfied.

[heady iris]

This is an extremely tiny micro-optimization to be worried about

don't even think about it.

just write code that's easy to understand and easy to extend

[vivid remnant]

I tried using the Destroy method right now and it works fine. :)))

Thank you for taking the time to help me out.

[heady iris]

sure, and what happens if you decide to put a tooltip that hovers over the button to tell you that it's disabled? now the tooltip breaks, because the button component is completely gone

I would destroy the component if the thing the component represents was completely gone

it's not gone; it's merely no longer usable

[vivid remnant]

To be honest, I never thought of that. I was planning to only show a tooltip if the object could be interacted with.

But I think it's better to listen to your advice.

I'll just use an if statement.

Better than to give myself extra headaches in the future.

[cinder spruce]

Does EnableKeywprd only work at runtime and not within editor scripts ?

[rugged sail]

how can I invoke a method that has parameters?

[latent latch]

If you need to pass parameters to your method, consider using Coroutine instead. Coroutines also provide better performance.

[rugged sail]

alr thx

[vale bridge]

is it not possible to call a function of a scriptable object from an inputActions callback?

It tells me that I'm not setting the reference to an instance of an object so I imagine it had something to do with the SO

nvm I figured it out

turns out I was setting up the return value of a void function to a callback, when in reality I needed to hook up the function itself to the callback subscribe

[tardy moss]

do I get a role here when Ive gone throught unity learning so you dont give me the bot command to check out unity learning ?

[tardy moss]

love it when a github unity example has a file called ActuallyTrying.cs like they were going to say on discord : "Im actually trying and dont understand here is the filename and class to prove it"

[latent latch]

you get a gold star in my book

[random oak]

trying to make my own slider but I'm still confused on clamping.
I have it follow mouse fine. How to keep the blue between the two orange lines ?

    public void OnDragging(Vector3 mousePos)
    {
        var pos = transform.position;
        pos.x = mousePos.x;
        transform.position = pos;
    }```

[fleet gorge]

is this on canvas layer?

[random oak]

just a collider for now

[fleet gorge]

assuming that your slider is vertical and not rotated, you can transform.position = new Vector3(transform.position.x, Mathf.Clamp(transform.position.y, min, max), transform.position.z)

[random oak]

I tried cs private void Awake() { initPos = transform.position; } public void OnDragging(Vector3 mousePos) { var pos2 = transform.position; pos2.x = Mathf.Clamp(mousePos.x, initPos.x + 0.2f, initPos.x - 0.2f); transform.position = pos2; }
Did not work

[fleet gorge]

if its in world space you need to screentowroldspace it first

[fleet gorge]

where is ondragging being called?

[random oak]

I'm past that, It follows mouse world position Correct. it just goes out of the orange lines

[fleet gorge]

oh

wait nvm

when it goes out of the orange lines does it stay outside until you release the mouse?

[random oak]

It keeps following mouse on its x axis

[fleet gorge]

but does it snap back into place after you release the mouse?

[random oak]

snap back? I'm not sure what you mean

I need blue not go past orange
https://streamable.com/eklv2r

[quaint rock]

so if that is vertical why is the code all about the x axis

[random oak]

just the way my camera is rotated right now

[quaint rock]

ok, and this is on what like a overlay canvas?

since there is no transformation of the mouse coords (screenspace) to world coords

[random oak]

just regular object with collider

[quaint rock]

also add some logging, see what values you are getting for transform.positon as you apply it

[random oak]

Is this code correct to clamp ?
#archived-code-general message

[quaint rock]

well you would want value, min then max as args but yeah should work

but like i said Debug.log

see if your expected range is just wrong or and what the actual numbers are

[random oak]

here is what's happening with this code

  var pos = transform.position;
  pos.x = Mathf.Clamp(mousePos.x, initPos.x + .5f, initPos.x - .5f);
  transform.position = pos;
  Debug.Log(transform.position);```

[latent latch]

So, here's a question. Say I want to linecast to check if a certain target is in line of sight, but I want to filter out other similar targets that may be obstructing the line, but if I do that then technically I'd be filtering out the main target's layer too.

Is the idea to swap the main target's layer/tag just for that line cast then swap it back? Haha

Perhaps a dedicated layer "LineOfSight" that I flip on every target I check against, or will I run into issues with this idea? (I'd assume swapping layer is instantaneous and there shouldn't be any lingering problems if it's all executed together)

[fair jackal]

After the linecast, maybe you can check for other things like script? (Unless it’s just a regular object with no special components)

[lilac bobcat]

Quick question, if I have a class which contains a number of unity properties and a multidimensional array of objects and I wanted to convert it to a JSON file for saving and loading, what would be the best way to go about it?

[tardy moss]

Json.Serialize(obj); super easy one liner, newtonsoft.json from unity enterprises it is a static method

you can add settings to the call/use JsonSerialize<> constructor after that if it doesn't do exactly what you want

[lilac bobcat]

Can newtonsoft support serializing things like Vector3 and Quaternion?

[tardy moss]

keep in mind unity limitation that it doesnt serialize private members/properties etc by default

try ? it takes like 5 seconds

I see no reason why it wouldnt besides the unity limitations I mentionned, serializer serialize every members by default

[somber nacelle]

https://github.com/applejag/Newtonsoft.Json-for-Unity.Converters

[tardy moss]

why use random newtonsoft packages rather than the official one in the package manager window though ?

[somber nacelle]

because versions before 3.0 did not support those types out of the box

which is clearly mentioned in the readme there

this is also not a replacement for the newtonsoft package, this is for use in addition to it
also unity's implementation is based on this one

[quartz folio]

It's very much not a random package 😄

[lilac bobcat]

Thanks a lot for that, worked exactly as I needed it to

[somber nacelle]

just note that if you are using unity's fork then you shouldn't need that

[latent latch]

void RicochetAbility()
{
    Vector3 normal = (currentHitTarget.ClosestPoint(transform.position) - transform.position).normalized;
    Vector3 reflectionDirection = Vector3.Reflect(transform.forward, normal);
    hitRotation = Quaternion.LookRotation(reflectionDirection, Vector3.up);
}

This kinda works, but I'm having issues that if projectile hits a wall dead-on, it'll continue going straight through it. Any ideas?

[latent latch]

nudging positions a bit does seem to help, but the reflection direction has become unpredictable a bit.

blah guess ill just use OnCollision, or maybe just raycast it

void RicochetAbility()
{
    Vector3 collisionPoint = currentHitTarget.ClosestPoint(transform.position);
    Vector3 normal = (transform.position - collisionPoint).normalized;
    
    if(normal == Vector3.zero)
    {
        hitRotation = Quaternion.LookRotation(-transform.forward, Vector3.up);
    }

    else
    {
        Vector3 reflectionDirection = Vector3.Reflect(transform.forward, normal);
        hitRotation = Quaternion.LookRotation(reflectionDirection, Vector3.up);
    }
}

Actually that seems to be an ok bandaid for now

the normal zeroes out sometimes cause I guess the contact and position or too close, but the problem with nudging positions is like in what direction do I nudge if say the sides of the collider made contact first

so if anyone has any ideas for that

[lean sail]

how are you getting the currentHitTarget currently? with raycast maybe just use the normal given from there. One case u might be getting weird functionality is because when they collide, the 2 objects might be overlapping slightly, and the transform position is being taken inside the collider

[latent latch]

I'm getting it from OnTriggerEnter, but yeah it's probably cause it's all overlapping

[lean sail]

oh yea OnTriggerEnter would be worse for that since it wouldnt stop objects from moving

[latent latch]

even with raycast im not sure that would help. I would think a second collider maybe

[lean sail]

raycast should be fine because it has the normal https://docs.unity3d.com/ScriptReference/RaycastHit-normal.html

its the normal of the surface hit

[latent latch]

thing is, im not too sure where I would target with the raycast if not the collisional point

oh, you mean instead of using the collider entirely

I kinda just actually swapped over to colliders. Was using overlap for a bit but I've gotten to the point where kinematic controller will work with what I got.

[dim forge]

Im working on generating a dungeon, and the algorithm places rooms as it goes, however, i need to check for room collisions when placing them. Preferably, i would like to do this before i Instantiate the room. Is there any way to get some bounding box information of a GameObject?

[delicate flax]

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

this is the most straightforward way if an AABB works for you. you can get it from the mesh renderer or the collider iirc.

[dim forge]

oh, interesting, ill see what i can do with it, thanks!

[woeful narwhal]

this is a text wavey effect for text mesh pro. does anyone know any other cool ones _verts[_charInfo.vertexIndex + j] = _original + new Vector3(0, Mathf.Sin(Time.time * 4f + _original.x * 0.01f) * 10f, 0);

[rocky osprey]

is there an equivalent to Task.FromResult<T> for Awaitable<T>?

[thick terrace]

i think you have to make a completion source and set the result, which isn't quite as bad as it sounds (awaitables are pooled so it's probably still only one allocation?)

[rocky osprey]

cool, that did it. thanks!

[thick terrace]

i can see myself writing a helper method to do that whenever i get around to upgrading to awaitables 😅 i wonder why they didn't include an easier way

i guess if you're frequently returning values with Task.FromResult it's worth considering using ValueTask instead of Awaitable anyway

[crystal knot]

I'm having an issue with the circle where it bounces back and forth rapidly.

this is the corrosponding code. using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Ball_Movement : MonoBehaviour
{
private Rigidbody2D rb;

float t = 0.0f;
public float x = 0.0f;
public float y = 0.0f;

// Start is called before the first frame update
void Start()
{
    rb = GetComponent<Rigidbody2D>();
}
void OnCollisionEnter2D(Collision2D Paddle)
{
    rb.gravityScale = 0;
    y = 3.0f;
    Vector2 vel = new Vector2 (x, y);
    rb.velocity = vel; 
}
void OnCollisionExit2D(Collision2D Top_Border)
{
    y = -3.0f;
    Vector2 vel = new Vector2 (x, y);
    rb.velocity = vel;
}

}

[static matrix]

is it possible to make an optional out?

[static matrix]

mfw when no ```

[leaden ice]

ref

[static matrix]

THE USECASE IS FOUND
great

[leaden ice]

Or do you mean with a default value?

Ref would just not require the function to write it, if that's what you mean

[static matrix]

thats what I mean

[crystal knot]

what do you mean?

[sleek cliff]

Guys I want some information whenever I download unity install editor it's get failed I have rtx 4060 laptop why is this happening

[leaden ice]

If you want to be able to omit the parameter you'd have to just write another overload of the function

[leaden ice]

Don't crosspost

[sleek cliff]

Ok

Brother

But I am getting this problem bro

[static matrix]

yeah I may be overcomplicating things
I was trying to rewrite my FindClosest method, which returns a vector3, to also optionally be able to return the object its attached to
when I should just write a FindClosestObject method

[sleek cliff]

Huh

Heloo

[static matrix]

patience, young one

[sleek cliff]

Ik brother

Ok

[static matrix]

you also asked basically the most vague question known to man
"I download editor it no work plz explain"

[sleek cliff]

I install 2021 unity editor it's getting failed

[vagrant blade]

Move this conversation to #💻┃unity-talk where it belongs and where you've already asked @sleek cliff. You don't need to tak eup three channels.

Nor is it a programming question.

[static matrix]

alright

[sleek cliff]

Ok brother osteel

[tardy crypt]

Is there any reason I shouldn't use a static class with static functions for pure functions that are just library functions?

[thick terrace]

no, that's a good usage

[tardy crypt]

ok thanks

[rocky osprey]

I ended up creating my own FromResult method for Awaitable. My case is a little odd, cuz I'm using it for an dummy method. So, the real method actually does awaitable things, and my dummy one is returning a constant, hence the FromResult.

in case anyone wants to do that public static Awaitable<T> FromResult<T>(T value) { var completionSource = new AwaitableCompletionSource<T>(); completionSource.SetResult(value); return completionSource.Awaitable; }

[mystic gull]

    private float _hitTime;
    [ContextMenu("Hit Animation")]
    private void OnHit() => _hitTime = Time.time;

ContextMenu doest not change the _hitTime value. This attribute only for Debug purposes?

[leaden ice]

When and where are you running the context menu thing?
Note that _hitTime is NOT serialized.

[mystic gull]

In play mode

All I want is just set the value by calling Hit Animation ContextMenu function

And why it has to be serialized?

[static matrix]

is it possible for me to quickly add code to all instances of an abstract function (vscode)

[dim forge]

Hmm, i dont think this is going to work, im not sure. My rooms aren't just squares

[mystic gull]

Duplicated.
I want to create the AnimationPlayer MonoBehaviour class for animation purposes. I want to run methods of the class asynchronously. What concepts should I use: Async/Await, Tasking, Threading, Coroutines?
Target platform is mobile

[leaden ice]

Coroutines or Async/Await.

[weary dawn]

I want to instantiate a gameobject after a gameobject ie. I want it to be a sibling. How do i do it?

[leaden ice]

Instantiate(thePrefab, siblingObject.transform.parent);

(make it a child of the same parent)

[weary dawn]

forgot to add. Lets say there are 4 child in the parent right. I want it to be the second one (index 1) when instantiated

[leaden ice]

https://docs.unity3d.com/ScriptReference/Transform.SetSiblingIndex.html

[cinder spruce]

Do you guys know what can be caausing this :
Objects are trying to be loaded during a domain backup. This is not allowed as it will lead to undefined behaviour!

When i create a new project and create a shadergraph, after a few minutes i start gettting this eerror. And once its there you keep getting it more and more until editor restart

I tried on the 2023 something version and again on the 6.0 one

[vagrant blade]

@long hare Don't crosspost please. #💻┃code-beginner

[long hare]

alright

[spice briar]

hey everyone, so im trying to make an ArmA-style zoom, where you can press right mouse to toggle aim down sights, but if you hold the button down for half a second it zooms the camera in

does anyone know how to set this up using the new input manager?

[heady iris]

You can use an Interaction to create an action that's only performed once the button has been held for long enough.

[spice briar]

yeah, but the problem with that is that the normal aim down sights also gets toggled when i hold down the button

i want aim down sights to not go if i hold the button down

[heady iris]

Add a "Tap" interaction to the aim-down-sights action .

Tap requires you to press and release the button quickly

[spice briar]

that works perfectly, thank you!

[cyan hornet]

I closed my visual studio and opened it again

and viasfora was still not installed

does anyone know how to fix this?

[heady iris]

It's possible that something is stuck in the background. I'd restart my computer and try again.

[dim forge]

How can i tell if a collider is currently in collision with another collider?
I have a class that generates rooms of a dungeon. The idea is that every time i Instantiate a room, i run a check if it collides with any other room and if yes, it gets destroyed and replaced.

I thought i could just use the "OnTriggerEnter" but the problem is that my script is just on some empty object that has nothing to do with anything. Do i have to create a new script, place it on the rooms, and then read collision data from this script?

[thin aurora]

You can get a list of all the current collisions with a field on the component

Though I can't find what it is called

[dim forge]

yeah i can't find anything like this in the documentation

[thin aurora]

Could have sworn I used it before

[thin aurora]

GetContacts() by any chance?

This accepts an array and it will fill the array with all the touching colliders

But I can only find this for 2d colission

Nvm, this one is for 3d I believe https://docs.unity3d.com/ScriptReference/Collision.GetContacts.html

[dapper fern]

I've got a general question about Singletons and "Managers".

Let's say I have several 'manager' type scripts in my scene. Each one of them exists in a single instance, so it makes sense to make them a singleton. The thing is, they have methods and events I want to invoke from different places throughout the game, so for example I may have 64 objects that refer to something from that manager several times per a game session.

It makes sense to cache the reference to a manager, but, obviously, I can't make a [serializedfield] on 64+ objects and drag the manager there. Not caching and calling Manager.Instance to get the singleton every time would not be ideal as well, cause I know that's much less efficient than caching it somewhere. I can't cache reference to this singleton during object's Start() or Awake() because, obviously, singleton may get initialized AFTER the object that tries to cache it.

I've read about Lazy Initialization of singletons and also I've read about using callbacks to cache this singleton into the object only AFTER the singleton is initialized, but I'm not sure that will work either.

Basically, I'm asking what is the standard, non-stupid way to handle Singleton caching, initialization, subscription, etcetera( when calling Manager.Instance over and over during runtime isn't viable)?

[dim forge]

well this needs some contact point array, how can i get that from a bunch of colliders?

[thin aurora]

No, what it does is fill the array for you

The idea is that you give a large enough array for everything to fit in, because this saves on allocation

The reason is that this method is likely called very often so this increases performance

[dim forge]

ohhh, so it goes over all the stuff in the scene and whatever is colliding, it returns?

[thin aurora]

You can also give it an empty List rather than an array. Unity will resize it for you then in case you don't know the size it should have

[thin aurora]

Yes, the collection (array, list) will then be filled

[cyan hornet]

i just imported some custom packages/assets, does anyone know how this goes away?

[thin aurora]

They did this because it would otherwise constantly return a new array, which is where the extra allocation comes in

[dim forge]

and then i can use this to see which colliders were in the collision?

[thin aurora]

No, it already returns all colliding colliders

[dim forge]

yeah alright, thanks a lot

[clever trellis]

I'm have to make logic for possible legal moves for chess pieces.
Currently I've made the logic in one file only and assigned that script to every chess piece. I've been told to follow good coding practice and write clean code.

Now, im confused should i keep it as it is only (every logic in 1 file) as its easier to assign one file to any piece and there's no issue of wrong file assigned.
Or
Second, i should put different logics in different scripts and assign it to individual pieces as per their names (like a rook script for rook, a queen script for queen.... And so on)
Or
Third, i should make different scripts for each individual pieces but connect them through one common script, that will call these scripts after a series of if statements using tags. This way also I'll have to assign only 1 script to all pieces.

What should be the best practice?

[lean sail]

The standard for a solo dev is pretty much just calling .Instance everytime. This really is a micro optimization, events would work but then you also have the issue that everything needs to subscribe and unsubscribe to an event. There surely wont be any noticeable performance difference. You could apply a pattern like a service locator

[dapper fern]

Thank you! If the performance difference will be a micro one that I'll just do what you said indeed. I'm gonna read about a service locator too, tho 🤔

[light wraith]

is it possible to see custom classes in the editor: but that inherit from a custom class?
for example in my mono behaviour script I have:

IBaseClass myClass;

for example in start:
myClass = new InheritingClass;

how would I edit public fields of myClass from the editor?

for debug only.

[lean sail]

Architecture for a game like chess can be really simple if you want to make it only in line with the existing rules. it's really quite easy to just place all your logic in 1 file, give each Piece an enum saying which piece it is, then doing some logic based on that. But if you want clean code, this isnt easy to extend. For example if you wanted to introduce a new piece, suddenly you have to edit this script again. If a piece suddenly changes movement, you need to edit the script again. This script would essentially never be complete. In terms of clean architecture, I'd say it's pretty sufficient to have a base Piece abstract class (or make this an interface but dragging in inspector will require custom editor functionality), then you create child classes which implement methods like how it can move given a certain board.

[lean sail]

Make the class Serializable

[light wraith]

does not seem to work for inherited classes

I made both the inheriting class and the base class serializable

[rigid island]

iirc you need the attribute

[lean sail]

That's not the issue, you declared the type as the base class

[light wraith]

yea

[lean sail]

Thus you only have access to stuff on the base class

[light wraith]

am I missing something

[quaint rock]

the only way to do this is fairly round about and will need a custom editor

but its possible with SerializeReference

[latent latch]

Abstract?

[light wraith]

yea I thought it may come to this

[quaint rock]

SerializeReference fully supports polymorphism unlike SerializeField

but you will not get automatic creation from the editor so will need to handle that via editor script

[light wraith]

I will try it, thanks

[light wraith]

that's fine

[quaint rock]

it even supports interface types

but you editor logic will need to create the objects yourself

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

[latent latch]

There's packages around to help for that

[rigid island]

oh ye thats the attribute, forgot the name

[light wraith]

yea already doing that

[quaint rock]

yeah i always just made my own logic, i dont lean on much from the store at all

[light wraith]

ok it seems to work, but whenever I enter play mode it entirely disappears

[tardy moss]

Clean code isn't universal it's just an opinion and if you ask 100 programmers they would differ on a certain practice and there is wisdom in knowing when to use it or not. Seems overengineering in your case but if you insist the way Id do it is define the types of chess pieces and have some sort of IChessPiece they all inherit from so someone else can understand what it does without looking at the implementation just the interface. Especially if you have a epic supermethod with hundreds of if or cases. This mindset is very similar to the book code complete 1/2 about clean code from microsoft, where the authors considered exceptions to every rule they state

[latent latch]

Ive found mackysofts serialize references pretty good and I think vertx had something worthwhile

[light wraith]

in vertx I trust

[tardy moss]

the interface would enable dependency injection as well and testing outside of unity if that is easier for me (sometimes is for me especially when importing new assets and waiting hours, I can just test the code in a winforms project while unity does whatever/mine bitcoins...)

[latent latch]

But in the end I just dont serialize by abstractions even though interfaces is probably a real miss for unity not developing more fore

[quaint rock]

i just wish you could drag in UnityEngine.Objects via interface types, with out of the box unity

[light wraith]

absolutely

[light wraith]

does not seem to work for me. really odd, I followed their example too

at first it appears in the editor empty

on playmode it just entirely disappears

[quaint rock]

oh

[tardy moss]

speaking of which how do you manage it when you have an itemcollection with items but some asset wants you to fill their catalog with their own item class ?

flywheel or interface pattern ?

[quaint rock]

this is a MB or a SO or something

[tardy moss]

or you could delete the class of yours and start over ?

[quaint rock]

SerializeReference is more for regular C# classes @light wraith

i assumed that was your case

[light wraith]

yea that is my case

not monobehaviour at all

I hold a regular C# class as a variable on a monobehaviour class.
I would like to edit values on that regular class from the inspector

usually it is possible with just placing [System.Serializable] on the class

but in this case, I have an [SerializeReference] IMyBaseClass (= new MyInheritingClass)

[quaint rock]

so with SerializeReference it will show up totally blank first

you need to construct the object via code first

[light wraith]

yes

[quaint rock]

then you can see it in the inspector

[light wraith]

in the mono behaviour class:

and on start()

this is movement state

and normal state:

[quaint rock]

strange

[light wraith]

yea

[quaint rock]

quick little test

that is a interface type

[light wraith]

mine is abstract but in the docs it says it supports

[quaint rock]

is all i did, then i ran the context menu thing to create the data

[quaint rock]

then i was able to edit in the inspector and have it show up as changes in diff

[light wraith]

ok, I will try with your example

[quaint rock]

you will notice in your diffs in git, it shows up very differently then a regular serilize field

will warn this approach is fragile to type name changes and refactoring

[dim forge]

@thin aurora I'm still having troubles implementing that GetContacts method, where do i get the collision from?

[quaint rock]

would come from your OnCollisionEnter or a physics method call

[light wraith]

@quaint rock am I doing it right?

it does show up in inspector all the time, but empty, float test does not appear.

[quaint rock]

even after start?

[light wraith]

yea

the screenshot is from play mode

[quaint rock]

toss [ContextMenu] on so you can invoke it in the editor

the example i gave was just a quick and dirty test, but how it showing right away for me

normally in cases like this when its done i will create a popup menu in the edtior scripting that creates the object of the right type and stores it in my base type or interface type

[dim forge]

well thats the problem, the script i have is on an empty object in the middle of the scene. I need to check collisions between rooms that are spawned using this script around the scene

[quaint rock]

i dont have context but think i would use Physics.OverlapBox

with my bounding boxes

[light wraith]

you mean to ok()?

[quaint rock]

no to create the data, the one that calls new and constructs

[light wraith]

what is going on

[dim forge]

i just want to be able to spawn rooms with various shapes and check if their hitboxes overlap so I don't spawn them inside of one another. The bounding box is a box, that would create problems if the rooms aren't squares right?

[light wraith]

I added it to ok() and it now works 😂

I am so confused!

but it doesn't even show the function

[rigid island]

split those types of mesh into different cube sections, and run overlapbox

[light wraith]

I can edit the value through the inspector

[thin aurora]

You don't get the collission

The method collects all active colliders colliding with the calling collider component you call GetContacts from

All you need to do is pass an empty array or list and it will fill with references to the other collider components

Note in the case of an array you need it to be big enough. If you have a size of 10 it returns 10 max, or less. A list will be resized so that might be better.

See here: https://docs.unity3d.com/ScriptReference/Collision.GetContacts.html

[knotty sun]

don't you need a collision to call the method on?

[dim forge]

yeah i get that much, i just dont know where to get the collision to call from

[thin aurora]

I believe you get the source collider component and this should have the GetContacts method

[thin aurora]

That would be whatever you need to check is being collider against

What is it exactly you want to know in this case?

[quaint rock]

would just keep it simple if all you want to do is query for colliders in a area just use something like this
https://docs.unity3d.com/ScriptReference/Physics.OverlapBoxNonAlloc.html

[dim forge]

like how do i take an object with a MeshCollider and and it "is this mesh collider currently colliding with something?"

[thin aurora]

You would take the object with the MeshCollider and call GetContacts

And if I read the wiki correct it should returns a collection of references to whatever the mesh collider is colliding with

[knotty sun]

Collider does not have a GetContacts method

[thin aurora]

Or do what Passerby mentioned, that works the same basically

.... The page is about a collision, not a collider

Well then

[dim forge]

yeah, thats what i was having trouble with

[thin aurora]

I guess I totally misread this then, I thought it mentioned a collider

[dim forge]

but this should work, thank you

[thin aurora]

Actually, it does mention a collider

I initially read this page https://docs.unity3d.com/ScriptReference/Collider2D.GetContacts.html

Why is this different? 🤔

[rigid island]

box2D vs physx

[thin aurora]

Yeah so the 3d variant is actually completely different

My bad

[rigid island]

yeah messes me up sometimes, some features are not available in the other n vice versa

[dim forge]

yeah, you need a collision, but since the script is on an empty object and the GameObjects are stored inside of a graph class, inside of a node class and inside of a room class i didnt think i could use the OnCollisionEnter method

[quaint rock]

it works with HitInfo objects when you use the raycast or overlap methods

[latent latch]

There's contactpoints

Which you dont need collision

Oh no im think of closest point

Was using it earlier for some ricochet logic without a rb

[icy herald]

WHY DOES ANY UNITY METHODS like awake, update MAY STOP WORKING ON ALL UNITY EDITOR VERSIONS?
a

[lean sail]

Dont crosspost, why even think this would be a general or advanced issue

[quaint rock]

Awake and Update not awake and update

[dim forge]

wait but this wont work, i need collisions, not colliders, i can get those easily

[latent latch]

Rb is for collisions

[quaint rock]

i dont know your usecase never seen the original question

[dim forge]

Rb?

[quaint rock]

assumed it was just about finding what rooms are overlapped

so you can remove them

[latent latch]

Otherwise you need to calculate the first point of contact

[dim forge]

yeah, i have rooms with colliders and i need to check if any of the colliders overlap

[latent latch]

Overlap sphere is the answer

[dim forge]

can that find collisions?

[latent latch]

It finds colliders

[dim forge]

but i have colliders, i need collisions

[spring creek]

Colliders that overlap with the sphere

Aka, a type of collision

[quaint rock]

if you just need to know hte objects what i posted is enough

[dim forge]

i have the objects

[quaint rock]

if you need each contact point then you would need a collider to create collsion events with

[dim forge]

i need collisions

[latent latch]

You check colliders. Collisional stuff is more specific to rigidbodies

[quaint rock]

what do you need the collisions for?

i feel like we have not heard the whole extent of what you want to accomplish

[dim forge]

lets say i want a tree like structure out of rooms, when i spawn a room, i need to check that this new room doesnt overlap with any other room, if it does, remove it and try again

every new room is spawned from a door on a previous room

[quaint rock]

so i assumed you wanted to check a volume of space

if you want to do it via colliders you already got i would loop through all of those colliders and work with them methods on them

[dim forge]

if i spawn a new room somewhere around these 3 rooms i need it to not overlap the other ones

[quaint rock]

or do like bounding box checks via the OverlapBox

which will tell you if other colliders overlap a space

[dim forge]

yeah but the problem is, my rooms arent just squares

[quaint rock]

what type of colldiers are used

[dim forge]

yeah but, having colliders, how do i check their collisions? I couldnt find any method that would be helpful

[dim forge]

just mesh for now

[quaint rock]

so without first spawning things this will be hard to check for

what i would do would be looping through the colldiers to get the bounding box for each one

then use overlap methods

[dim forge]

yeah but my problem with the bounding box is that, well its a box

so it takes the spaces around the room that could possibly be used

[quaint rock]

but in reality are you describing a complex shape like that as 1 collider

or would that be 2 or more

[dim forge]

every room is a single object

[quaint rock]

thus you can check that one by one

[dim forge]

how do you mean?

[quaint rock]

so that is really ineffecient since you have 1 massive non convex collider per room?

[rigid island]

Like i said split it into different cubes

I already see that room can be 2 Rectangle colliders

[dim forge]

i mean the rooms are created out of 3x3m prefabs technically

[quaint rock]

like i have done similar feature before in a game i am currently working on

but it works since each wall is a collider, each rectangle part of the floor is a collider etc

since colliders work best as convex shapes, and i tend to not model 1 room whole sale but build it from modular parts

and sometimes even the modular parts have a few colliders if they need to describe a shape like a arch so i can have multiple convex wedge shapes instead of 1 concave arch

some of the reason i approach it this way is for the scripting side, and some of it is simple for optimization and workflow and wanting to stay convex everywhere

[dim forge]

okay so lets say each room would be made out of the 3x3m tiles, how would i go about this then?

[latent latch]

When you put this mesh type, check this bounding box, solved

[dim forge]

i might just do that, how would i then check collisions of bounding boxes?

just get center, calculate top left and bottom right corner and check with all the other bounding boxes? Or is there some smarter way to go about it

[latent latch]

Though you can always use more than one box. I assume these are prefabs anyway so customize the bounds

[dim forge]

how do i do that? I looked to see if objects have a bounding box component, but i couldnt see one

[knotty sun]

Renderers have a bounds property

[quaint rock]

colliders have them too

[dim forge]

yeah i noticed that in scripting, cant see it in Unity though

[quaint rock]

in the case of tile based games, i have also just in a other object just defined waht shape something is manually on the grid so i could use that to check if its going to overlap anything

like there are so many ways to do this

[dim forge]

thing is, this isnt supposed to be on a grid

[quaint rock]

i was just saying that is a other way based on the usecase

[dim forge]

yeah, alright

think I'll just create my own Bounds class that works well with my other classes and give up on the idea that the bounds aren't just rectangular

[somber tapir]

Playing Videos in a WebGL build seems to no longer be working. I tried the VideoPlayer approach with the video file being in the StreamingAssets folder. It works in the editor but in a WebGL build only the sound plays, the video stays black.
Anybody here have an idea why that is?

videoPlayer.errorReceived += VideoPlayer_errorReceived;
string streamingPath = System.IO.Path.Combine(Application.streamingAssetsPath, path);
errorText.text = streamingPath;
videoPlayer.url = streamingPath;
videoPlayer.Play();
```I get no errors either.

[modern creek]

I've got this effect for when a player touches the screen - I emit particles from the touch location. I move it around and set the emission rate to 100/0 depending on if the player is touching the screen. Works great except when they first touch - it plays a particle or two from the last location of the game object.

I'm definitely moving the object before setting the emission rate to 100 but I imagine that because it's in the same frame, it can emit a particle at the old location.

Any ideas how I can get partcles to not emit for one frame easily?

(sometimes there's one particle emitted from the wrong place)

[hard viper]

i feel like i’ve had this issue before, but I don’t recall the answer. did you try making sure the particle effect gameobject is in the right position before turning it on?

or is it not on a gameobject at the cursor?

[modern creek]

so... i'm not actually turning the GO on/off, just setting the emission rate.. because i want particles to live after the emitter stops

lemme paste some code, sec

[hard viper]

i think i normally use a trigger event in the vfx

[modern creek]

        private void StartTouchParticles()
        {
            ParticleSystem.EmissionModule em = TouchParticles.emission;
            em.rateOverTime = 100;
        }

        private void StopTouchParticles()
        {
            ParticleSystem.EmissionModule em = TouchParticles.emission;
            em.rateOverTime = 0;
        }
        public void OnDrag(PointerEventData eventData)
        {
            if (!_isDragging) return;
            TouchParticles.transform.position = eventData.position;
        }
        public void OnPointerUp(PointerEventData eventData)
        {
            StopTouchParticles();
            if (!_isDragging) return;
        }
        public void OnPointerDown(PointerEventData eventData)
        {
            TouchParticles.transform.position = eventData.position;
            StartTouchParticles();
        }

that should be all the relevant stuff

[hard viper]

look at the VFX graph

[modern creek]

but the position is set in OPDown before it starts emitting

the vfx graph...?

[hard viper]

how are you making your particles?

[modern creek]

just a vanilla particlesystem

[hard viper]

do you not have a VFX graph?

[modern creek]

Unity.ParticleSystem or whatever

i mean, I have a library that's flattening the particles into UI meshes but that should be irrelevant for this

.... maybe

[hard viper]

first try turning off play on awake

i suspect that might be emitting something, that then gets paused

[modern creek]

shouldn't matter, since the GO is always on

like i never call play() stop() or any of the ParticleSystem methods to start/stop the system .. the only thing i do is change the emission rate

[hard viper]

idk much here. but i suspect invoking play/start manually is the way

[modern creek]

i can't recall though - i think stopping the system kills the "in flight" particles

[hard viper]

you are probably right. sorry, i’m not well versed in this one. you will need help from someone else

[modern creek]

all good.. open to any ideas TBH.. can't seem to figure it out, short of making this more complicated than it needs to be with a coroutine that sets the emission rate a few frames later

[dapper fern]

Actually, after rethinking this whole situation I've come to a conclusion that every single delegate in my 'Manager' could be made static, thus removing the need to subscribe to a singleton instance to trigger events

[modern creek]

This is how I do it, although some people frown on it. It's worked for me

[dapper fern]

Oh? why do they frown on it tho?

[modern creek]

    public class PlayerManager : ReloadableManager
    {
        public static event Action<MinigameDefinition> StartedNewMinigame; // UI subscribes to "domain logic" events and animates them accordingly
        public static int HighestLevelCompleted => Instance._highestLevelCompletedCached; // simple data points, accessible anywhere
        public static void SubtractLife() => Instance.SubtractLifeInternal(); // "global" methods contained within the singleton

// and the boilerplate
        private static PlayerManager instance;
        private static PlayerManager Instance => instance == null ? FindFirstObjectByType<PlayerManager>() : instance;
        private void Awake()
        {
            if (instance != null)
            {
                Destroy(gameObject);
                return;
            }
            instance = this;
            if (_player == null) LoadPlayerInternal();
            _isInitialized = true;
        }
}

race conditions, tight coupling, etc

I like it because it's convenient - I put all my singletons in a single DDOL in my loading scene, and then all the functionality in my entire app is available without any fussing about instantiating and/or getting references to these game logic objects

the bulk of my codebase is rendering/ui anyway

[dapper fern]

it does sound convenient. as I see it, you need non-static events when you need to listen for events from a specific instance of the class, and maybe not listen to another instance? If you don't need that, or if you're gonna have only one instance of this class (if it's a singleton) then... any events fired from it... will be fired from only one place? right?

[modern creek]

i don't have any non-static instances that emit events.. that's just not a pattern i really need

[dapper fern]

so making these events in this scenario non-static only puts a burden on you to subscribe to a specific instance and figure out the script execution order as well

[modern creek]

I use events really heavily since it bridges "domain" and "view" really nicely

[leaden ice]

The fun thing about static events is you can always just manually pass in the source instance if you want as well

[modern creek]

my 99% use case is "something happens that requires UI, so emit an event" and all the UI stuff that cares about it subscribes/unsubs in OnEnable/OnDisable

yeah - i haven't needed it (i almost always just send null in the obj sender pattern) but it's there if you do

[dapper fern]

that is absolutely right

[leaden ice]

so the use case for non-static events is really limited to when you need a lot of different listeners listening to a lot of different specific instances of things.

For example if you had 100 enemies each with their own health bars emitting HealthChanged events. You wouldn't want them all to say if (source == theOneICareAbout), you'd just subscribe them each to the appropriate instance event

[modern creek]

    public class GoalUpdatedEventArgs : EventArgs
    {
      // bunch of data
    }
  

public class GameManager
{
  public static event EventHandler<GoalUpdatedEventArgs> GoalUpdated;

  private void SomeMethodThatDoesShit()
  {
     GoalUpdatedEventArgs args = new()
     {
        // blah blah blah
     };
     GoalUpdated?.Invoke(null, args);
  }
}

EventHandler.Invoke(object sender, T args)

i think you're "not supposed" to use this as the first parameter in static classes but.. if you need to, you can

[leaden ice]

Unsolicited advice - but I recommend not using the EventHandler pattern in Unity

Unecessary overhead/GC allocation

[modern creek]

oh? why's that? i was just starting to move to it

interesting.. just instead of vanilla delegates?

[leaden ice]

Just define your own delegate type!

public delegate void GoalUpdatedHandler(Enemy source, int myParam1, int myParam2);```

[modern creek]

i've lately been migrating my codebases over to that pattern, I wasn't aware of GC overhead

yeah, well, that's close to what I did (I used Action<T> though with a <T> that had all the parameters)

[hard viper]

almost all of my delegates are Actions, so I rarely need to define my own

[leaden ice]

using object source isn't type safe and could involve boxing struct types
And allocating a new MyEventArgs instance is GC allocation if it's a class

[lean sail]

It's because of the new

[leaden ice]

yeah that's equivalent

[hard viper]

but if you have a delegate used a lot that has non void return type, then defining it is a good idea

[leaden ice]

You never need to really, I just prefer to as personal preference

[modern creek]

otherwise my delegates started to get hairy and confusing

public static event Action<int, int, float, string, (Color start, Color end)> TileUpgraded;

this is an actual event in my codebase that I haven't migrated to the "new" way yet

[leaden ice]

because I like typing HealthChangedHandler instead of Action<Unit, int, int>, it's more clear

[modern creek]

obviously the big problem here is not having a T to hold all those parameters

[leaden ice]

yeah this is why i prefer named delegates

[hard viper]

that is exactly the case for named delegates

avoids confusion

[leaden ice]

But I recognize the convenience of Action where appropriate

[modern creek]

obviously one is easier to read

[leaden ice]

public static event TileMovedHandler TileMoved;

[quaint rock]

yeah i only use Action for 0 to 2 args

[modern creek]

although I haven't found a good "normal" place to hold event arg classes

[quaint rock]

if its more complicated i will define a proper delegate type

[modern creek]

I kinda hate littering up other files with them, but then they feel too "small" to each have their own file

[lean sail]

Even without defining the delegate first, you could put the 2nd one in a struct all the same

[hard viper]

define a delegate in the scope of a class that uses it a lot

[modern creek]

I've gone back and forth on the struct thing because of the copying overhead.. I mean, I'm using a lot of events in my codebases

[quaint rock]

what do you mean littering

[hard viper]

too much shit

[quaint rock]

just put it in the scope its needed

only stuff in a class cares about that delegate type make it there

[modern creek]

yeah, I suppose i could put it inside the scope.. didn't htink of that

[quaint rock]

same goes for structs and enums and stuff

[lean sail]

Its nice if you are unsure about something changing. Like my DamageInfo struct in the future may add more details, but I dont wanna refactor 20 classes to adjust for this

[modern creek]

ie here's my .. GameManager file, collapsed a bit:

[quaint rock]

i very commonly have a bunch of supporting types defined inside the scope of a larger type

[modern creek]

GoalUpdated, TileDestroyed, TileMoved events are all like... 4 lines.. making a file for each of them seemed silly

didn't think to put them inside GameManager

[hard viper]

you want to put them in the scope of something meaningful

[quaint rock]

like one of my SO's has really complex nested data defined in it, i literally have 2 enums and 8 structs defined inside of it and a delegate

so those dont litter the whole namespace or assembly

[modern creek]

reping my OP since the singleton conversation hijacked it 😉

[clever lagoon]

Well, this was unexpected! Type 'UnityEngine.Color' in Assembly 'UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null is not marked as serializable. I'm using BinaryFormatter to create a custom save file. Do I really need to create a whole new custom struct, and populate it at serialize-time just to save a Color?

[heady iris]

Unity's notion of "serializable" is distinct from C#'s notion of "serializable", yeah

I'm not sure if there's a way to convince BinaryFormatter that the type is fine to serialize

also, you're about to be warned about BinaryFormatter 😉

[leaden ice]

Obligatory "please don't use BinaryFormatter" comment!

[heady iris]

er, Serializer

or is it Formatter? https://learn.microsoft.com/en-us/dotnet/api/system.runtime.serialization.formatters.binary.binaryformatter?view=net-8.0

[leaden ice]

Yeah it's formatter

[clever lagoon]

yeah, I mean I CAN create a custom struct marker with [System.Serializable].. just gonna be a pain.

[leaden ice]

You know me so well Fen

[heady iris]

I clicked on the warning on that page and it took me to one written in Spanish

[clever lagoon]

if anyone wants to inject code into my save game files, they are welcome to 😉

[peak elk]

hello! i have a question, how can i make a custom editor where i hide and show variables based on the toggle? i've tried to do smth but it didnt really do what it was supposed to lol, also am using custom list's(variables inside lists), should i send the full code here?

[leaden ice]

Well it's not _your computer _ that would be at risk, it's your customers'

Anyway I'll drop it 😉

[rigid island]

use GUI toggle or sorts

[spring creek]

That's an awful way to think about it
Why not just use the better option? It's exactly as easy

[clever lagoon]

just a home project. But I AM curious about it ... my game open the file and fills data structs.. how COULD injected code get executed with that?

[peak elk]

i did but the list gets unlisted lol like the stuff become variables

[rigid island]

like this you mean you wanted right
https://docs.unity3d.com/ScriptReference/EditorGUILayout.Toggle.html

[peak elk]

this is what i want to make

but the options piece to hide or show the top or bottom variables(bottom being isremu and text_) and true for showing the anwser_options array

[clever lagoon]

you'll need to make a custom Editor or custom property drawer to do that. Check the bool, then do or dont display the following controls.

[heady iris]

for a more extreme example, read up on python's pickle library

it can execute completely arbitrary code when it deserializes data

BinaryFormatter is more constrained: you cannot trivially make a blob of data that runs completely arbitrary code

[peak elk]

i did that then this is what i get

[heady iris]

https://github.com/pwntester/ysoserial.net has a big collection of BinaryFormatter vulnerabilities

it's pretty cool: it's a lot like building a ROP exploit out of small code gadgets

[clever lagoon]

so it uses a driver installed on the system? interesting. But wouldn't we have to count the system as ALREADY comprimised if such a driver is on it?

[autumn lantern]

hey guys had a question about grids / a* pathfinding. If i'm doing pathfinding jobs, do you guys recommend creating a new grid array for each pathfinding job, to store parent nodes correctly?

or have one master grid?

[heady iris]

this doesn't involve "drivers" at all

it's abusing existing libraries to cause things to happen to your system when you deserialize data

extreme example: if you have a class that deletes all of your files when you construct it, then deserializing data that includes an instance of that class will rm rf you

[clever lagoon]

guess I misunderstood "The main driver program takes a user-specified command and wraps it in the user-specified gadget chain, then serializes these objects to stdout." But regardless, this special code/class must already be on the system, right?

[heady iris]

the problem is that the special code is from standard .NET libraries

it's not really special at all

That's the idea of these "gadget"-based attacks

return-oriented programming takes small pieces of code from a vulnerable program and strings them together in a way that winds up making the program do something evil

[clever lagoon]

interesting stuff, thanks again for that link Fen, I'm still not quite getting it yet, 'cept the running the constructor stuff- THAT makes sense. I'll have check that out link in more detail.. but for now- I just need to serialize a UnityEngine.Color.

[heady iris]

I believe the core problem with BinaryFormatter is that you can't say "I want to deserialize a Widget": it just does whatever the binary data tells it to do.

[clever lagoon]

well said

[heady iris]

I currently just use Json.NET. I've been thinking about switching to BSON (which is roughly just JSON, but with binary data instead of printable characters)

Json.NET has a pretty major advantage here too -- you can write custom converters to deal with this kind of thing

so when it finds a UnityEngine.Color, you can tell it "oh, just write four floats"

You don't actually have to create a "serializable color" type in that case

[clever lagoon]

Will check it out. That system handle references to objects properly? (by which I mean... I have say 4 referencs to an object, will it save it only once and create the appropriate references at deserialize time?

[dim forge]

how can i get OnCollision functions working on objects with Mesh colliders? I dont want to make the mesh collider convex

[heady iris]

You can't put a rigidbody on a non-convex mesh collider.

However, you can put a rigidbody on something that hits a non-convex mesh collider

[dim forge]

yeah I'm checking room collisions, both of them have mesh colliders. I guess ill just make them convex, check collisions and make them not convex

[heady iris]

If you're talking about Unity objects, then definitely not -- they need to be created correctly. I haven't made a "save game" system yet that requires serialization of in-world objects yet

More generally, I'm also not really sure -- I've stuck to serializing things like settings, statistics, and configurations so far. Much more tree-like.

It's something I am going to have to figure out at some point; it just hasn't happened yet

[heady iris]

I would try to wrap them in primitive colliders.

[dim forge]

well this doesnt work so ill have to do that yeah

[heady iris]

Is this for level generation?

[dim forge]

yeah, checking if a generated room intersects previous rooms

[clever lagoon]

perhaps you could use MeshRenderer.bounds and check if they overlap? https://docs.unity3d.com/ScriptReference/Renderer-bounds.html https://docs.unity3d.com/ScriptReference/Bounds.Intersects.html

^ note this uses a box that encompasses the entire mesh, meaning 2 L shaped rooms (concave) could have the bounds overlap, even though the meshes themselves might not overlap.

[worldly ruin]

Hey does anyone know how i could recreate this boost effect for Just Shapes & Beats, with the little expanding circle getting a thinner outline as it grows, using a ParticleSystem on Unity 5.6? Thanks a lot :D

[dim forge]

yeah i thought this would be a problem but i kind of give up on that idea, ill just use the bounding box, thanks

[leaden ice]

Why on diesel Soviet version of Unity

Anyway just kinda looks like a particle system with some masking effect

[worthy willow]

I made a script that generates new waypoints if my Ai gets stuck on a wall (the scene is dynamic)

at line 143

i want to choose the point with the smallest distance, how can i do that

[quaint rock]

keep a var for the minDistance seen and for the object that got it

each time something has a smaller distance assign both

see what you got at the end of the loop

[worldly ruin]

k thanks i'll try searching for that

[weary swift]

If you saw my question, I just don't know how to read. My problem is fixed !

[worldly ruin]

can't seem to find any Masking option in the particlesystem renderer, i think it has been added in version 2017? or maybe i'm doing something wrong

[naive plinth]

Hello! I was looking for info on creating a multiplayer game using Netcode for Gameobjects with a mix of ECS for the terrain generation.
However, when I install both, i get an error since there seems to be a conflict with the libraries. Has anyone found a soluition for this?

[rigid island]

well

[leaden ice]

Netcode for Entities is a thing

[rigid island]

ECS is not compatible with GameObjects

[naive plinth]

I know, however, I specifically wanted to use ECS for the terrain and nothing more. I didn't want to fall into ECS as a whole

not possible then?

[leaden ice]

like... to generate the terrain?

[naive plinth]

There are some bridges

[leaden ice]

or what?

[naive plinth]

Yeah, just the terrain

the problem isn't using one of the technologies, its more on having both packages NGO and ECS in the same project

[rigid island]

just use DOTS for terrain then

you get some benefits by using Jobs for example if you want to split it on different threads

[ashen yoke]

by terrain you mean just the terrain data, or deformations, objects on it?

[naive plinth]

mainly data. including deformation intention

objects would be normal game objects

[ashen yoke]

if just data you can run generation in jobs, no ECS needed, but i think that even if you need ECS you can keep ECS world and copy entity data to the GO world

[naive plinth]

alright, ill focus on the DOTS aspect instead of ECS. Thanks @ashen yoke @rigid island

[rigid island]

btw Dots is the whole stack including ecs.
iirc unity does have some bridging for that (ecs to gameobjects) now that i think about it

but yeah I'd learn Jobs first

[naive plinth]

Indeed. Ill focus terrain generation more on the jobs side

[heady iris]

Yep! I use Jobs in games that aren't Entities-based at all.

combined with Burst, you can do a lot of work very quickly

[autumn lantern]

anyone got an idea what's the best design option for this?

I'm a bit confused as I've seen people using a single grid for mulitple a* jobs at the same time, but wouldn't that cause the parent nodes to collide?

[ashen yoke]

what do you mean by collide?

[autumn lantern]

so if i'm using a 2d array and to pathfinding jobs use the same node inside that array, they will end up overriding each others parent

this is my node class

[hard viper]

are you doing BFS etc?

also you should just combine x and y into a Vector2Int

[autumn lantern]

i'm using a*

[ashen yoke]

not sure what you mean, you create structures to compute the path, minheap, queues etc that will be cleared once the path is done, you dont need to modify the actual grid

[autumn lantern]

ah so just store a list/struct instead of using the parent of the node

[hard viper]

there are several ways to do it

you can store a giant 2D array to get fast access of matrix to node

[heady iris]

Don't store A* data in the actual grid tile

The different A* operations will be fighting over that data.

I use Djikstra's in one place and A* in another. In both, I create a dictionary to map each node to its parent.

they aren't jobified, but..maybe I should try that (:

[autumn lantern]

i'll probably end up doing something similar

Djikstra's looks awesome too, i like the way rimworld do it with regions

probably going to implement something similar

[heady iris]

I use Djikstra's for a search problem where I have no way to come up with a heuristic

i'm pathfinding over a graph with completely arbitrary connectivity and with no hints about how close I am to the goal

I use A* for goal-oriented action planning

in that case, I can estimate how close I am to the goal based on how many things still need to be accomplished

[autumn lantern]

ah that makes senses. I'm only looking at simple movement at the moment

[heady iris]

Movement is great for A* because you have a good heuristic

(the distance to the goal)

[autumn lantern]

yeah it's pretty good but with grids, it was having issues. i'm going to end up splitting the map up into regions and using Djikstra for bigger distances

[heady iris]

hierarchical pathfinding can be way more efficient

[autumn lantern]

will also help with use case where a pathfinding goal is innacessible like you mentioned

[autumn lantern]

never heard of it, i'll look into it. ty

[heady iris]

that's what you're doing :p

split the world into regions

pathfind from region to region, then within a region

[autumn lantern]

ooh lol. I've not implemented it yet, just thought it looked great

https://www.youtube.com/watch?v=RMBQn_sg7DA&t=6s basically this

[errant bolt]

I'm trying to add the ability to link images/textures to a graph element in a custom node editor, does anyone know any good reference code/tutorials for that?

I've dug through the documentation and found input node features for stuff like how Shader Graph handles 2D Texture inputs, but that relies on a centralized property list, and I want to make something that links more individually on a node to node basis.

[dapper fern]

I've stumbled into a problem with TextMeshPro where if I pass a regular color into the font atlas material - it gets effed because it is an HDR color while I am working with regular colors in my project. I want to change the font color globally, hence why I am altering the material directly, however either because it is HDR, or because TMP Vertex Color property SOMEHOW affects it - the resulting color is always wrong, paler and brighter.

I understand that if I alter both Vertex Color and Face Color - it will show me the correct color, but I don't want to alter Vertex Color of every goddamn TMP field in my project, it's stupid!

For now I've removed [HDR] from all the colors directly in the shader. Colors still show up wrong in the editor, but in the game view they are fine. I don't know why this problem exists, or if this is a problem at all, but I hate this solution and everything about this issue. If anyone faced such issues with TMP and solved them - I'd like to know how.

[heady iris]

There's nothing special about it being an "HDR color"

all that does is allow you to pick colors with R/G/B values greater than 1

A color that you've cranked up past 100% intensity can start to look washed out, depending on the render pipeline and tonemapping settings

a super bright color in the HDRP will turn white with the ACES tonemapping setting, for example

[thorn stirrup]

With OnCollisionEnter2D( Collision2D otherObjectsCollision), i can get the contact point and normal of the other object colliding with the game object with the OnCollision method.
But how can I get the game objects contact point and normal with that other object?

[spring creek]

https://docs.unity3d.com/ScriptReference/Collision2D.html

GetContacts

[runic nimbus]

Hey guys!

Here is a video of a game that has an interaction system I am trying to model

Two handed grab with an offset

Just think of how you would grab a gun like that, one hand on the grip, and one hand off to the side where the foregrip is

I've been stuck on this for days and would really appreciate if a quaternion wizard came in to help.

Thanks!

[high summit]

I am currently trying and failing to make a general purpose interaction system. I'm able to get it sort of working, but the players hitbox gets in the way of the raycast when you start looking downwards. This is my current code: ```cs
void Update() {
RaycastHit hit;

    int playerLayer = transform.root.gameObject.layer;

    int layerMask = ~(1 << playerLayer);

    bool hitInteractable = Physics.Raycast(interactionSource.position, interactionSource.forward, out hit, interactionRange, layerMask);

    if (hitInteractable)
    {
        IInteractable interactable = hit.collider.GetComponent<IInteractable>();
        if (interactable != null)
        {
            interactionPromptUI.SetActive(true);
            if (Input.GetKeyDown(KeyCode.E))
            {
                interactable.Interact();
            }
        }
        else
        {
            interactionPromptUI.SetActive(false);
        }
    }
    else
    {
        interactionPromptUI.SetActive(false);
    }
}``` This script is attached to the playerCamera, which is a child of the playerCapsule

Also not happy with how messy the code currently feels

Instantly realized I didn't actually set the players layer to anything different so I feel a bit dumb, though I'd like this system to work in multiplayer down the road anyways so this solution isn't future proof, as currently youd be able to interact with stuff through another player

[lean sail]

is this first person or 3rd person? i assume 3rd. Maybe regardless you could find a way to start the raycast inside the player so it does not detect the player. Could play around with where the interactionSource is depending on how the player is looking.
Otherwise you could start a 2nd raycast if the first one hit your own collider. There is also stuff like RaycastNonAlloc but you would need a 2nd raycast anyways or some comparison to see which object is closest

[high summit]

First

The raycast starts from the camera which is inside the player

Actually now that you said that I checked and the camera was only partially in the player

[lean sail]

it shouldnt be hitting the player then at all

[high summit]

I think that was the issue

Just tested and that was it thank you

🤦‍♂️

[swift falcon]

FromTo guarantees that From will go to To, but doesn't give you very much control over the complete orientation. Imagine you hold your hands as if they were aiming a sniper at a target. You know if there were a sniper in your hands it would be pointed at the target. But that sniper could be upside down with your pinkie on the trigger or on its side, and in fact could be rotated any angle about that axis. Therefore making From point at something is not enough.

Not 100% sure but suspect this could be leading to the behaviour in ur test.

Will think harder on a solution.

[high crow]

hello there i am trying to make a grounded check in unity 2d after a few months of not using unity but for some reason it changes to grounded then stays like true.

this is my code grounded = Physics2D.Raycast(transform.position,Vector2.down,Distance,LayerMask.NameToLayer("ground"));

[spring creek]

What is the distance?

And where do you check the grounded state?

[high crow]

1 i have used draw ray to check it

update

[spring creek]

Ok hmm. Good for both

[swift falcon]

to be clear, it's false at the start, goes to true, then can never come back?

[high crow]

yes

[spring creek]

And only the ground has the ground layer?

[high crow]

yes everything else is defult

[quartz folio]

https://unity.huh.how/physics-queries/layer-masks

[spring creek]

Oh daaang

[high crow]

ahhh

[spring creek]

I never use NameToLayer so I always forget

[high crow]

so do i have to difine a layer mask i have never done that before

[swift falcon]

layermasks got me for like a week before i figured it out

[quartz folio]

I provide all the solutions on that page

[high crow]

ok ill test it out thanks for the help

ok so i initialized the layermask with... public LayerMask layermask then changed my code to be grounded = Physics2D.Raycast(transform.position,Vector2.down,Distance,layerMask); now grounded doesn't change from false btw i did remember to change it in the inspector

[errant bolt]

Does anyone know how to have textures/sprites linked within nodes in a custom graph view?
I've got foldouts/input + output ports for linking but I can't seem to find anything in the documentation that refers to other 'bindable elements'

I have the data structure to store the image/anchor positions I need for the system I'm working on but I'm not sure how to make the graph view draw an image/texture field into a node.

[frail cove]

create a visual element and set its background to the sprite/texture?

or use a preview container

[sleek bough]

@full oar Don't cross-post

[full oar]

womp womp

[dapper fern]

You know what's weird, the rgb values I pass from color to TMP HDR color are correct, however when I switch to HSV mode - values are different for HDR, even if intensity does not move from 0 during the exchange/conversion. It must not be the HDR problem, but a TextMeshPro problem with how it... I dunno... blends vertex color and face color values? It's weird and I don't get it.

[heady iris]

I don't like the transform.rotation *= line. That's probably what's causing the wild spinning

[heady iris]

note that the "intensity" value you see in the color picker doesn't actually exist in the Color struct

it's just a scaling factor for the R/G/B values it's showing you

I forget the base, but if the color picker is showing red = 0.5 and an intensity of 10, then the actual red value is 0.5 * base^10

[mild holly]

Hey guys, I am trying to make a 3d platformer game and I got the player controls by the standard third person controller assets, I want to make a rotating asset I have shown such that it makes the player slip, right now as the player is based on character controller, it does not have simulated physics that allow that

[swift falcon]

for my physics based grab system what forcemode do i want to have when trying to get it to a target position?

[heady iris]

probably a continuous force

and one that depends on the mass of the object

so, the defualt force mode : ForceMode.Force

[leaden ice]

You haven't defined the problem well enough for an answer. Technically any force mode can work provided you do the appropriate calcultions. But you haven't explained what the behavior should be

It depends on how "snappy" you want this to be

[lunar python]

you could do something like a smooth damp or just do a teleport if you want immediate change in position

if you want to grab something and have it interact with other physics body then sure check this out:
https://discussions.unity.com/t/difference-between-forcemode-force-acceleration-impulse-velocitychange/103470/4

[swift falcon]

alright

[lunar python]

Anyways I need serious help, my code is becoming spaghetti. I want to ask about how to clean up Coroutines when they are suddenly interupted during a phase. Currently the WallCling would interupt the jump and I would need to reset the variables depending on the phase of coroutine. I have considered making functions for each phase but that would quadruple the codes' length.
Here's my code: https://paste.ofcode.org/77TsxASkNnH4rRNMxUcaPx

Btw, you could also give me some recommendations to organize code better

[leaden ice]

your link seems broken?

[lunar python]

the host is broken currently

idk why

ok host is up again

[heady iris]

I want to set all of the knots in a Spline. It looks like calling SetKnot winds up doing a lot of extra work per call -- it's dirtying the spline and doing some other work every time I call it

There's a SetKnotNoNotify method that skips this. I'm planning to just do this:

for (int i = 0; i < knots; ++i) {
  // calculate some stuff
  if (i < knots - 1)
    spline.SetKnotNoNotify(...);
  else
    spline.SetKnot(...);
}

I don't know if this is going to cause some weird internal problems for the spline

I'm just going to but I'm curious if I'm missing something here

[static matrix]

is a virtual function like an abstract function but you don't have to override it?

[hard viper]

virtual function has an implementation already, that you can choose to use or not use

[static matrix]

ah ok
cool

[hard viper]

you can also do
public override void DoX() {
base.DoX();
//My own DoX
}

[static matrix]

nice

[final junco]

Hi, I'm trying to use a simple grab and drop object script and I'm having a problem with it. If I look down with the object on my hand the object will collide with the player and send him backwards.
How could I disable the collider only between the player and the object when it is in the player's hand?

[heady iris]

You can make specific colliders ignore collisions.

https://docs.unity3d.com/ScriptReference/Physics.IgnoreCollision.html

[final junco]

oh that is perfect thank you

[hard viper]

note that this disables ALL physics interactions, including force, callbacks, etc. If you need to block just force or just callbacks, you can set layer overrides.

[heady iris]

i uh, forgot to read

although, this generates garbage...

the problem is that I can't call SetDirty -- it's an internal method

[heady iris]

this breaks the spline; it doesn't update the spline curve properly

i guess it's time to Embed That Package (tm)

[heady iris]

wow, this is a lot faster -- like, unreasonably faster

i have to triple-check this; i must be messing up the benchmark

oh, I had deep profile on, which was probably unfairly penalizing the one-by-one approach

This is still an enormous difference. This can't be right...

I created 16 4-knot splines and have a script that either:

• calls SetKnot once per knot
• makes a list and assigns it to Knots

SetKnot is taking about 3ms. Assigning to Knots is taking 0.15ms (and creates a lot of garbage, since it's making entirely new lists in there)

Both versions are working just fine..

[heady iris]

Looks like SplineCacheUtility -- an editor-only class -- is responsible; it tries to update some cached data instead of just throwing it all out

So it's not a runtime problem, but it sure is an editor problem...

[earnest nebula]

hello I keep having really weird problem
so I import strings from file and then write them out
they are loaded okay
but when writing them out they behave weirdly
well only the first letter
first letters behave like this:

sentence1[sentence1]
sentence2[sentence1]
sentence3[sentence2]

and so on
but the rest of the sentence and words are alright

i found one solution to this
copy the object, remove the original and it works
but just once
on other runs (and even builds it breaks again)

I am sending video and code snippet below

the weird thing is that it only breaks on some objects
even if they are from the same prefab

[heady iris]

oops, that was backwards

where do you reset textArea.text?

share the entire script

[earnest nebula]

i will share all related scripts
there are like 3 at work

[heady iris]

!code

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[heady iris]

use a paste site for them

[earnest nebula]

thank you

WriteOutSentences: https://paste.ofcode.org/k9fAnYH8e8XGqdxZA8QsTH
WriteTextProlog: https://paste.ofcode.org/NSy28gXzFFz6nzfXRPxhEA
InteractTextPrologWritingSentences: https://paste.ofcode.org/UB6fV8VJhmXZaxxh3SMRF4

WritingGameplayProlog: https://paste.ofcode.org/UZW4CYRewEKSmDgJcfSLJP
ControlWordsProlog: https://paste.ofcode.org/mcBCxAFNTVWqNZdchqJSgh

the last two are just the behavior of the write outs

WriteOutSentences load text from file

and WriteTextProlog prints sentences into text area

[weak venture]

It's rare but I sometimes fall through the one-way platform effector. Are there parameters I can mess with (like maybe the collider size?) that could make this more consistent?

[swift falcon]

how do i get the magnitude of a vector3

[knotty sun]

https://docs.unity3d.com/ScriptReference/Vector3.html

[swift falcon]

k im trying to add it to another vector3

[knotty sun]

can't add a float to a Vector3

[weak venture]

could add "new Vector3(float, float, float)" if you want

or only to whatever component you care about like "var xOffset = new Vector3(otherVec.magnitude, 0.0f, 0.0f);"

[knotty sun]

or v3 = v3 + (v3.normalized * otherVec.magnitude)

[heady iris]

what are you trying to accomplish here?

[errant bolt]

Sorry, I don't need to draw the image itself to the node, I have a data structure to store images for the node, but I am trying to find a way to display/draw the linking/reference portion of this behavior to a node.

I need an image anchor to embed a dropdown for an enumeration that tracks anchor position, and link/reference to an image in the project.

[heady iris]

I wound up embedding the Splines package and:

• adding a SetKnots method that reuses the old BezierKnots and MetaData lists
• getting rid of a ton of garbage allocation by not using IEnumerable in one place (manually iterating over four lists instead of using a method that iterates over them for you) and by avoiding a Select in another place (which was also super simple)

0 GC allocated per SetKnots call! It runs way better in the editor, and it also runs better than calling SetKnot repeatedly in the build.

Most importantly, it still appears to work correctly, too 😉

[tranquil canopy]

Hello everyone! I'm currently working on developing a visual asset for Unity aimed at managing JSONs in a more intuitive manner. But i've found a little problem...

I'm seeking an efficient method to handle custom data types within my asset. Specifically, I want to enable users to seamlessly add their own data types. For instance, consider a scenario where a user wishes to introduce a data type named 'WeaponType' with various values such as 'Rifle', 'Pistol', 'Shotgun', and so forth.

My aim is to ensure that my asset remains flexible enough for users to define and utilize their custom data types visually. However, the complexity lies in these data being of a custom type, not simply float, char, int, or string.

Given this context, any ideas?

[latent latch]

parsing

[heady iris]

you're describing a super broad problem

[weary swift]

!code

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[weary swift]

Yo ! I have a function that allow me to activate and deactivate the weapon hitBox at a certain % of the animation. If I press attack while attacking, my player will change the attack animation. I want first animation to crossfade to the next one. The problem is, if I use crossfade the animation normalizedTime isn't really the one of the next animationAttack, but a mix of the previous and the next. This prevent me from actually knowing if i'm at 50% of the animation for example. What should I do to be able to crossfade while still having my function hitBox working ? PS : If I use Play instead of CrossFade it works perfectly fine, in case your'e wondering
https://gdl.space/emawiboqey.cs

[hollow halo]

Hello, I have a question, about my Unity WebGL Build project. Where I'm making a C# Script call javascript functions. Before i ask, i guess my main problem would be I don't have a deep understanding of Javascript or C#, but I'm trying. I made a Javascript plugin, put it in my asset folder, and created a C# Script that calls a function from the .jslib file. This script runs fine on the browser after i build the project, however, im kind of puzzled as to why I get this error ```EntryPointNotFoundException: GetUserAgent assembly:<unknown assembly> type:<unknown type> member:(null)
DeviceInfo.Start () (at Assets/Script/DeviceInfo.cs:20)

When I test my build, this function gives me an issue

[tranquil canopy]

probably... but i'm looking for a general answer too...

[swift falcon]

Does anyone know if this dialogue system supports event based dialogue, like you can make a script or something do something after a dialogue choice has been selected: https://github.com/merpheus-dev/NodeBasedDialogueSystem

Or does anyone know of some branching dialogue system like that

[weary swift]

If you didn't see my message :

[final junco]

Hi I am working on a pick up and drop object script and I wanted to make it so if I fling the camera before dropping it, it throws the object with the force applied to it but I'm having some problems trying to do that.
I tried it this way:
Vector3 desiredPosition = holdArea.position + holdArea.TransformDirection(objectOffset);
Vector3 moveDirection = (desiredPosition - heldObj.transform.position);
heldObjRB.velocity = moveDirection * pickupForce * Time.fixedDeltaTime;

and objectOffset is defined like this:
objectOffset = holdArea.InverseTransformDirection(pickObj.transform.position - holdArea.position);

and it wasn't the best solution because it just keeps getting close to my face if I run, what could I do to make it stay more in place on the holdArea?

[swift falcon]

nvm i found my mistake

[twin lintel]

does anyone know how can i populate an objects array automatically, like without having to drag and drop my objects in the inspector multiple times? i wanna automate it because im working with too many objects and i have to repeat the process for different scenes with different objects..

[rigid island]

depends what you're trying to fill

also why not use prefabs, anything you do in one scene should affect all other prefabs

[twin lintel]

oh yea sorry i meant prefabs list

[rigid island]

like a list of prefabs ?

[twin lintel]

yea

i can fill it by drag and dropping my objects but it takes so much time

[rigid island]

if its a common shared list, put them in a scriptable object, you can have all other objects refer that list

[twin lintel]

mhm ill see thanks

[terse aurora]

why are my collisions not working? sorry for the sound btw, don't know where it comes from

[rigid island]

looks like your animation / is moving it into the wall

or your Movement script

make the rigidbody dynamic and use velocity / addforce to move instead

[weak venture]

does collision still work normally on kinematic?

[rigid island]

afaik you have to do your own collision checks

[weak venture]

maybe try dynamic with gravity scale 0 if you want physics

[rigid island]

it pushes other bodies but will phase thru walls

[terse aurora]

if I set it dynamic collisions work but the player falls slowly

[weak venture]

you can set gravity scale on a dynamic rigid body i think

[rigid island]

if you script is overriding velocity that will also override gravity

you can only set velocity on your X in your movement

[terse aurora]

oh yeah, putting gravity on 0 and everything works perfectly, tysm

[rigid island]

you don't want gravity ?

[terse aurora]

nope, it's like a pokemon for example

[rigid island]

oh ok

[terse aurora]

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

public class Movement : MonoBehaviour
{
    private Rigidbody2D rb;
    private BoxCollider2D coll;
    private SpriteRenderer sprite;
    private Animator anim;
                                   //  w       s     a      d
    private bool [] inputsHolder = { false, false, false, false}; 
    [SerializeField] private float moveSpeed = 2f;

    private void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        coll = GetComponent<BoxCollider2D>();
        sprite = GetComponent<SpriteRenderer>();
        anim = GetComponent<Animator>();

    }

    // Update is called once per frame
    private void Update()
    {
        rb.velocity = Vector2.zero;
        if (Input.GetKey("w")) inputsHolder[0] = true;
        if (Input.GetKey("s")) inputsHolder[1] = true;
        if (Input.GetKey("a")) inputsHolder[2] = true;
        if (Input.GetKey("d")) inputsHolder[3] = true;

        if (inputsHolder[0] == true) rb.velocity = new Vector2(0f, moveSpeed);
        if (inputsHolder[1] == true) rb.velocity = new Vector2(0f, rb.velocity.x - moveSpeed);
        if (inputsHolder[2] == true) rb.velocity = new Vector2(-moveSpeed, rb.velocity.y);
        if (inputsHolder[3] == true) rb.velocity = new Vector2(rb.velocity.x + moveSpeed, rb.velocity.y);

        UpdateAnimation();
        FillWithFalse(inputsHolder);
    }
}

Does it seem like a good code for movement or you can find some good changes for it?

[rigid island]

yes..

[terse aurora]

because I don't feel like writing always new Vector2 is a good thing, but I'm not sure you can change it because I'm new to c#

[rigid island]

many changes needed

[lean sail]

im sure there are tutorials online that have better code

[rigid island]

for wasd I would just do

Vector2 input;

input.x = Input.GetAxis("Horizontal")
input.y = Input.GetAxis("Vertical")

[weak venture]

You dont need input holder here, you might as well just set on the previous check. Also if its gonna be top down like pokemon maybe its just easier to use translation based movement? Can be more finite/discrete that way

[weary swift]

navarone, can you look at this please ?

[terse aurora]

yeah I tried it but when I keep pressing w and then d at the same time it doesn't go right

[terse aurora]

yeah but I want it to move in diagonal too, with pokemon I meant the fact that it has no gravity but it is a bit different actually

[rigid island]

not sure about animations

[weary swift]

Oh ok, np thanks !

I will ask again tomorrow

[compact carbon]

hey quick question how can i put a lerp in a function and then call that function whenever to do the lerp?

[rigid island]

well yea.

where else would you put a lerp

[lean sail]

what part are you struggling with? seems like you know what you want

[compact carbon]

well no not exactly im a bit confused because when i put it in a function it only does it once but when its in update it works fine?

does it need to be in a IEnumator?

this is the code

when i put this lerp thats in update into the UpLerp Fucntion it dosent work

[weary swift]

Because you're calling it in Start not in Update. Update calls every frame, Start only when the script is starting 👽

[rigid island]

https://unity.huh.how/lerp/coroutines

check this out

[compact carbon]

ohhhhh

[compact carbon]

thank you

[hollow halo]

I am getting spanked by this next step. is anyone familiar with Emscripten? Ive go through 10-12 hours of reading regarding my issue, and this error seems to be abit trivial to diagnose 😦

[compact carbon]

ok i have a new problem, i have called one lerp but i want to then call another in a different function and it seems to not wait till the Coroutine is done to do the next one any ideas?

[latent latch]

what exact behaviour are you going for

oh, you may need to yield till the next frame if you're just falling out the the scope

https://docs.unity3d.com/Manual/Coroutines.html
some info on the return types

oh, but the resource up there basically tells you how to exactly write for it with lerp

[terse aurora]

don't mind about the music, why is the background so blurry?

not blurry, I meant glitchy

[delicate flax]

in short, it's because the camera movement is not pixel perfect

[versed spade]

For this section option. Is the Scriptable Object class the Visual Scripting Scene variables, a component (like Variables Component), or a normal C# class but instead of MonoBehavior it is Scriptable Object?

Sorry for the age old reply. got distracted with work through the past days

[heady iris]

It is not a kind of component.

[terse aurora]

and how to fix it

[heady iris]

ScriptableObject is kind of a unity object. You can serialize instances if them as assets and reference them front elsewhere

I’m not very familiar with Visual Scripting, so I can’t say if it’s similar to something from that system

[versed spade]

I personally wasn't finding an object called ScriptableObject in the menu, which was why I was confused.

Also my intention is for this ShipData database, is for the game to spawn it in depending on the user selected ship, so the data will change depending on what the player selected. PlayerLoadout handles what to spawn. ShipData is stuff like maxVelocity, turnRate, etc on the specific ship.

Since this is an object I assume it should work fine

[weary swift]

Fen, can you take a look at this please ?

[heady iris]

You won't find "Scriptable Object" in the Create Asset Menu. You need to define your own kinds of scriptable objects

It's much like how you derive from MonoBehaviour to create your own kinds of components.

[delicate flax]

that I can't really help with as I'm not an expert on the issue, I just know enough to recognize it 😅
my impression is that there are many ways to solve it, but it depends quite a bit on the game, engine and setup. hopefully someone else here knows more, if googling pixel perfect camera does not yield any results.

I know unity has this component, but I honestly have no idea if it's related to your problem, sorry.
https://docs.unity3d.com/Packages/com.unity.2d.pixel-perfect@1.0/manual/index.html

[heady iris]

I'm not very familiar with how the animator works when you're manually cross-fading like that (or when you're in the middle of any transition, really).

Animation events might be a more reliable way to do this.

[versed spade]

now I got it. Had to watch a fundamentals video for it. This looks just like what I needed. thx!

[weary swift]

Yeah I heard about animation events. I'm gonna research about this then, thanks !

[heady iris]

You might need to filter the events based on the weight of the animation state. Otherwise, the fading-out attack might fire whilst it's almost completely faded out.

You can receive an AnimationEvent in an animation event handler, and it has some info on it https://docs.unity3d.com/ScriptReference/AnimationEvent.html

including animationState and animatorStateINfo

[weary swift]

Ok thanks, I guess it's the right way to go

[compact carbon]

how do i detect if my mouse pointer is hovering over a CERTAIN ui element?

[terse aurora]

I don't even need it anymore but tysm for trying to help me, I'll do a static camera game, tysm again ❤️

[heady iris]

you can implement IPointerEnterHandler on a component you attach to the same object as the UI element you're interested in

OnPointerEnter will get called on it.

You can also use EventTrigger component to do this entirely in the inspector

it lets you add callbacks for each kind of event

[compact carbon]

what if the certain element can have multiple varients based on wether its on a different UI element will it still work then?

ok let me break down what im tryna do

im trying to make it so when you hover over a Level select it changes to show that level on the main worldspace, i ve got everything except the ui hover detection

[heady iris]

Put it on whatever the graphic is attached to

[latent latch]

there's a few input calls you can do depending if you're using the new input system or not

actually I dont think that matters anymore? Maybe they both work

https://docs.unity3d.com/2018.1/Documentation/ScriptReference/EventSystems.EventSystem.IsPointerOverGameObject.html
That one in legacy but I know it still works

there's one other call I know because I know I ran into issues with this using it with the callbackcontext of the new (not really new anymore) input system

public class CanvasRaycaster : MonoBehaviour
{
    GraphicRaycaster m_Raycaster;
    PointerEventData m_PointerEventData;
    EventSystem m_EventSystem;

    void Start()
    {
        m_Raycaster = GetComponent<GraphicRaycaster>();
        m_EventSystem = GetComponent<EventSystem>();
    }

    public bool IsPointerOverCanvas()
    {

        m_PointerEventData = new PointerEventData(m_EventSystem);
        m_PointerEventData.position = Input.mousePosition;

        List<RaycastResult> results = new List<RaycastResult>();

        m_Raycaster.Raycast(m_PointerEventData, results);

        if (results.Count > 0)
        {
            return true;
        }

        return false;
    }
}```
Ah, there's this way too I probably grabbed from the forums, but it's just a cleaner way to do this than above.

[sterile sorrel]

Im trying to instantiate a ramp object, it works, but I need it to instantiate in the length of a float called chunkLength, any ideas?

'public float chunkLength = 90;'

' GameObject[] rampEMPTY = GameObject.FindGameObjectsWithTag("rampTag");

foreach (GameObject position in rampEMPTY)
{
Instantiate(ramp, position.transform);
} '

[delicate flax]

#💻┃code-beginner message
same question, new variable names?
is the problem that it's not spawning at the correct location, or do you want to change the scale of the object you spawned to 'cover' chunkLength?

[cosmic rain]

Wdym by "in the range of the float"?

[sterile sorrel]

im instintiating ramp objects into empty game objects with the tag rampTag, it works, the chunks with these empty objects have this script that Instantiates these ramps, but since multiple spawn, they duplicate into past chunks

i need it to only generate in a certain range to prevent this

[spring creek]

if (Vector3.Distance(referencePoint, thingToSpawm) < range )

?

Still don't really understand though

[sterile sorrel]

like
foreach (GameObject position in rampEMPTY)
{
if (Vector3.Distance(position, ramp) < chunkLength)
{
Instantiate(ramp, position.transform);
}
}
?

that doesnt work

full thing

GameObject[] rampEMPTY = GameObject.FindGameObjectsWithTag("rampTag");

foreach (GameObject position in rampEMPTY)
{
if (Vector3.Distance(position, ramp) < chunkLength)
{
Instantiate(ramp, position.transform);
}
}

[spring creek]

doesn't work

That is always a useless thing to say.
What doesn't work?

You are using position in the distance check

And position.transform in the instantiate?

What is position

[delicate flax]

GameObject[] rampEMPTY = GameObject.FindGameObjectsWithTag("rampTag");

foreach (GameObject position in rampEMPTY)
{
    if (Vector3.Distance(position, ramp) < chunkLength)
    {
        Instantiate(ramp, position.transform);
    }
}```

looks like `ramp` is your prefab? so you can't really `Vector3.Distance` on that

[sterile sorrel]

Sorry

I'm meaning there is errors, that's why it won't work

[sterile sorrel]

yes ramp is my prefab

[cosmic rain]

Share the errors then.🤷‍♂️

[spring creek]

What is position?

[spring creek]

Then you can't use it there

[sterile sorrel]

Argument 1: cannot convert from 'UnityEngine.GameObject' to 'UnityEngine.Vector3'
Argument 2: cannot convert from 'UnityEngine.GameObject' to 'UnityEngine.Vector3'

!code

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[spring creek]

Yeah. You can't use a gameobject in distance

You use a position

Well, two positions of course

[sterile sorrel]

https://hatebin.com/nmkiqysgji

This is what ive got

I should have posted it like this first anyways

no one can understand little code bits without context

[spring creek]

That didn't need a link. Too short to be worth it

If you use a link, why not post the whole file?

[sterile sorrel]

whole file https://hatebin.com/mfnjdrdqjm

i did it