archived-code-general

[lean sail]

no, because its giving u if the value is positive or negative

there is no "neither" option in math

[buoyant crane]

Unity made that weird decision

[white gyro]

https://docs.unity3d.com/ScriptReference/Mathf.Sign.html

no

[lean sail]

i feel its the better decision, due to my reason above your message

[gray mural]

strange.

[lean sail]

damnit my message had a typo, corrected

[gray mural]

I just use System's then

I thought that's issue that 0 is not 0

but like 0.0000013

[lean sail]

that should only really happens on numbers that cannot be represented properly

[gray mural]

I see

[quartz folio]

https://float.exposed/0x00000000

[gray mural]

ok, System.Sign then

[gray mural]

what's that for?

[quartz folio]

https://ciechanow.ski/exposing-floating-point/

[pure cliff]

hhmm... I am realizing I need some way to handle tracking "Activated" entities, which are ones only within lets say 2 screens of the player, best to ignore any entities out of "Range" and they stop doing stuff and mattering for calcs

[frigid glen]

Hello, I would like to know how to use more than one extra thread when using system.threading and async/await funcitons. I know that you can use async/await and tasks to run code on a seperate thread but I don't know how to use more than one seperate thread.

[white gyro]

Do you have a use case for this?

You might want to take a look at the C# Jobs system, part of the Unity DOTS package.

[frigid glen]

Im using many references in my code so I can't use the jobs system

its a procedural world generation system

[white gyro]

Right.

Have you tried the native Threading library?

[frigid glen]

that's what im tryna figure out atm

[white gyro]

Maybe it's worth it to convert your system so it doesn't use references so you can use the Jobs system.

[leaden solstice]

Look into UniTask

[thick terrace]

async functions called from the Unity main thread don't run on a separate thread, you can use await Task.Run(() => ...stuff here runs on a worker thread...)) but it sounds like you might want to check out Parallel.ForEach for your case

[floral fractal]

        private void SaveCurrentData()
        {
            var str = JsonUtility.ToJson(temp, true);
            TextAsset textAsset = new TextAsset(str);
            AssetDatabase.CreateAsset(textAsset, $"{relativePath}/Level {temp.levelNumber}.asset");
            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();
        }
``` so i make Text Asset via Code, and its work. the text are created on correct path, but i though i can open it from Vs Code, then when i click that text asset, nothing happened??, why??, does unity Text Asset can't be open?

[frigid glen]

yea thats what I used\

[white gyro]

What do you mean "nothing happened"? What were you expecting to happen?

[golden vessel]

Hey, I'm having problems when changing resolution. Should I set all UI elements with anchors only and never use size?

[thin aurora]

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

[earnest gazelle]

To manage a project, suppose there are some columns like TODO, InProgress and Done. If you prefer to add QA and Review columns, how do you estimate sprint point or hour for that task? Consider all from TODO state to Done with QA + Review?

[white gyro]

Not sure if this is the right channel for this but for 2-week sprints, our pointing system is: Less Than Half Day, Half Day, 1 Day, 3 Days, 5 Days (1 week), 8 Days, 10 Days (2 weeks). This does get the ticket from TODO to QA in the same sprint but usually not closed until the next sprint.

[earnest gazelle]

OK, thanks and what if different person should handle QA and Review.

Change the assignee or create different cards

[white gyro]

It's still the same because they are blocked until work on the ticket has been done. Usually, QA will test the tickets that were sent to them in the previous sprint. But if there are enough people, QA can test within the same sprint.

Just change the assignee

Usually we create new ticket if we re-scope the ticket

[earnest gazelle]

So time estimation should include both dev + qa

[white gyro]

Definitely. Sometimes we also do Bugfix-only sprints where no new features are allowed.

[earnest gazelle]

It is a bit confused how much it is for dev and how much for qa if just one card has been created

[white gyro]

Since QA is often blocked until the engineers finish the feature, it doesn't make sense to create a separate ticket for them. We just reuse the same feature ticket and make sure it fulfills all the acceptance criteria.

Because if they have their own ticket, the ticket will remain blocked until the feature is ready for QA anyway.

So just use the same ticket and pass it around. Less tickets to manage.

[earnest gazelle]

OK, thanks so I estimate time dev + qa together, double it

[gray mural]

Hello, I have just started making a 2D game with new Input System.
I already have a movement, where coroutine is started in InputAction.started and the player is moved every moveDelay seconds by moveUnit.
He's moved with just 1 axis: (1, 0), (-1, 0), (0, 1), (0, -1).
I want to do it so that when move Vector is changed from (1, 0) to e.g. (1, -1) -> player starts moving to the new axis that is in our case (0, -1) (-1 is KeyCode.A).

(1, 0) -> (1, 1) = (0, 1)
0, -1 -> 1, -1 = 1, 0

Any ideas?

note: that's not just #🖱️┃input-system topic, that's why I ask in #archived-code-general

[winged mortar]

Set a variable that is read from the coroutine

[gray mural]

what do you mean, everything is performed within coroutine

[winged mortar]

Or cancel the coroutine and start a new one

Create a class scoped var, store direction in there

Read said var in the coroutine to determine direction

[gray mural]

I have tried to use prevDirection, but I haven't succeded

[winged mortar]

Coroutines are just functions

[leaden ice]

Coroutine doesn't seem like a good choice here. Just read the input data in Update

[gray mural]

I have a delay

[leaden ice]

Use a timer variable

[winged mortar]

You can do delays in update

Or fixed update

[leaden ice]

Delays in coroutines aren't consistent anyway

[gray mural]

https://www.nombin.dev/motxnwtcxa

can I do that movement with update?

no, I can, but is it comfortable enough?

[leaden ice]

Of course

[gray mural]

making it in Update doesn't seem to solve anything

[winged mortar]

Counter or timer in fixed update is probably better if it's some thing the player has control over

If just background scenery and you don't care about consistency then use update or coroutines

[gray mural]

yeah, doesn't seem like I can achieve that movement by just making it in update or fixedupdate

[winged mortar]

Your problem is that you don't know for to store the last direction though

[winged mortar]

This

[gray mural]

there are 2 last directions, do I store both?

[winged mortar]

Just xy right?

Vector2

[gray mural]

yes, 2 Vector2s

[winged mortar]

Yeah why not

[gray mural]

and one new

[winged mortar]

Do you care about the old?

[gray mural]

yes, if I just check one prevDir, then the movement is zig-zag

(1, 0) -> (1, 1) = (0, 1)

void MoveOnce(out bool canContinue)
{
    Vector3 dir = callback.ReadValue<Vector2>();

    dir.x = Math.Sign(dir.x);
    dir.y = Math.Sign(dir.y);

    Vector3 defaultDir = dir;

    print($"dir default: {dir}");

    if (dir.x != 0 && dir.y != 0)
    {
        if (dir.x != prevDir.x)
        {
            dir.y = 0;
        }
        else if (dir.y != prevDir.y)
        {
            dir.x = 0;
        }
    }

    print($"prevDir: {prevDir}; dir: {dir};");


    Vector3 newPos = transform.position + dir * moveUnit;

    if (!_gameFieldBounds.Contains(new Vector2(newPos.x, newPos.y)))
    {
        canContinue = false;
        return;
    }

    canContinue = true;
    prevDir = defaultDir;
    transform.position = newPos;
}

[winged mortar]

Looks good to me

[gray mural]

it doesn't actually

it's zig-zag

wait, why does it have (1, -1) vector...

actually I also wonder if I can achieve this by doing smth in input-system..

I think I gonna try to achieve this behaviour a bit later

[winged mortar]

I don't know what you are doing and what you are trying to achieve

[unkempt arrow]

hello! i have two objects, and im trying to make it when i hit one of them with bullets they flash white, and i've managed to do it with sprite masking, however when they are near eachother i find that the flash is shown on each object with the mask, nmot just the parent ofitself

i can't find anything online that mentions one object's mask stuff showing on another

[rancid frost]

Anyone know why I cant reassign vertices?
I am drawing a map of hexes, originally, I had 600 vertices. I then removed 1 hex, thus, now my vertices array on the left has 594 vertices.
I am trying to reassign it to the mesh, but the mesh.vertices wont update and still has an array count of 600

anyone know why?

[rancid frost]

If this is a visual only feature, perhaps you could use a shader to change the colors

[rancid frost]

you could also just change the color of the sprite to white

[steady moat]

To make changes to the vertices it is important to copy the vertices from the Mesh. Once the vertices have been copied and changed the vertices can be reassigned back to the Mesh.

I've used the API in the past and I had no issue.

Maybe you did not invoke mesh.vertices before ?

Also, is your mesh ReadWrite ?

[rancid frost]

yea, I can RW

[steady moat]

I mean, does it have the option enable.

[leaden ice]

Debug.Log would be your friend here

To ensure the lengths of things are as you expect

[rancid frost]

just verified, is readable to true

[unkempt arrow]

i've had lots of bad experiences with shaders :') i looked around online and saw that for 2d masks can be easier

[steady moat]

Follow the tutorial and see if it works.

using UnityEngine;

public class Example : MonoBehaviour
{
    Mesh mesh;
    Vector3[] vertices;
    void Start()
    {
        mesh = GetComponent<MeshFilter>().mesh;
        vertices = mesh.vertices;
    }

    void Update()
    {
        for (var i = 0; i < vertices.Length; i++)
        {
            vertices[i] += Vector3.up * Time.deltaTime;
        }

        // assign the local vertices array into the vertices array of the Mesh.
        mesh.vertices = vertices;
        mesh.RecalculateBounds();
    }
}

[rancid frost]

Im using breakpoints in Visual studio, let me verify with debug

The updated length is what the new mesh is suppose to be

but for some reason the mesh length is still at 600

strangely the hex in the middle vertices are removed

[rancid frost]

I recommend you just change the sprite color then

[rancid frost]

tutorial works

[steady moat]

You have 2 error. Fix them ?

[short badge]

Hello im having a problem. Sorry if thats not the right channel for it. I downloaded and imported a asset pack but it seems it has no texture?

using urp

[rancid frost]

yup, working on it,

[rancid frost]

check the shader

in the mesh renderer, under materials tab

put in a default material i mean

or the proper one

[lean sail]

This isnt a code problem

[short badge]

Thank you!

[short badge]

As i said , sorry if thats not the right channel for it(reading is important). However, you could just tell me where to send such problems next time instead of being a, well you know!

[rancid frost]

well, for visual related problems try the Artist Tools channels

or even the graphics

[short badge]

Great, thanks!

[rancid frost]

For some reason, my mesh.vertices is not updating

[steady moat]

Are the error fixed ?

[rancid frost]

The error is caused by mesh.vertices not updating

[steady moat]

Why it would not be the opposite ?

It cannot update because of the error ?

[rancid frost]

so here is where I am at

initially, I have 600 vertices -- 6 per hex

I remove 1 hex -- now I have 594 vertices...

after removing the hex, I redraw the mesh by calling this method.

how ever the mesh.vertices size still stays at 600, even to the Vertices array size is at 594

[thick terrace]

the error is telling you it won't update vertices because that would make the previously assigned indicies in triangles invalid, try calling mesh.Clear() before reassigning the verts and tris

[rancid frost]

Well, this is a step in the right direction, thanks

now we have a new problem

[steady moat]

You gotta update the triangle array also.

[rancid frost]

wouldnt the mesh.triangles be over written?

[steady moat]

The triangle seem to not be correct.

Yes, however you are referencing vertex that no longer exist.

[thick terrace]

the indices themselves are wrong, you'll need to fix them before reassigning them, because you've changed the length of the array

[steady moat]

And to be honest, have you consider using individual render component instead of manipulating the mesh at runtime.

[rancid frost]

no, never heard of standard render component

ATM, im just learning how to work with meshes really

[steady moat]

I mean, 1 renderer per hexagone.

[rancid frost]

ahh

I was reading on it, and I heard, 1 large mesh faster

[steady moat]

Yeah, it is faster, however do you need it to be faster ?

Because, it is also harder to maintain.

Meaning that you will lose time

[rancid frost]

Hmm, well the end goal is to have a means to modify the material of hexes individually

I guess 1 renderer per could be a better strat

[lean sail]

Yes I agree reading is important. As the channel name, description, and #🔎┃find-a-channel wouldve pointed you to the right place, you shouldve read them

[thick terrace]

your way isn't bad, but individual renderers will be easier to start with and you can see if it's a performance problem after that

[rancid frost]

ok

Will modify for individual renderer

[haughty zephyr]

Hey everyone! Does anyone know if the UGS Cloud Save has offline functionality, similar to Google Firebase?

[short badge]

well i am not a discord mod like you mate to know where every channel is and what purpose it has. Besides that, i am new to this discord server as i believe your eyes can see.

[thin aurora]

That is not a coding problem so this is the least relevant channel for this. #🔎┃find-a-channel has a good explanation on each channel and your problem fits perfectly in one, if not multiple.

[rigid island]

store it locally until you have internet

[haughty zephyr]

Thanks, no built in functionality then? We're looking to move from Firebase, their SDK just does it all automatically then pings the data off when internet connection is back.

In storing it locally, any suggestions on what way is best? Our save data is pretty large JSON, so I imagine we'll have to write a JSON file locally (mobile).

[swift falcon]

convert the materials

[short badge]

guys the problem is fixed!

[short badge]

.

[rigid island]

yes cloud save on unity is still in its infancy.
yes you'd store the file locally, when you have internet on client again check and compare the files, handle overwrites / different files from there.

[short badge]

@thin aurora Someone helped me out already thanks.

[haughty zephyr]

Thanks for the help & confirmation, much appreciated.

[rigid island]

cheers!
just curious is there a reason wanting to go from firebase to cloud save?

[gray mural]

hello, is there any way to force trigger InputAction?

[haughty zephyr]

We've hit 132k users now, and we're no longer able to view or edit users data in 'realtime' on their dashboard.

I've been looking into it, it seems we have to export the data to BigData and edit it there, then reimport it to Realtime Database. It just seems like a headache.

[rigid island]

gotcha. Have you looked into MongoDB Realm at all ?
not sure their cap but their datasync is pretty good

[swift falcon]

elaborate please

[haughty zephyr]

I have not, thanks for the heads up - I'll look into this.
UGS was interesting because we're already using Addressables, and we can use their remote config, authentication, vivox & multiplayer all under one roof. Just trying to simplify the project.

[gray mural]

Is there any way to trigger InputAction in code?
E.g. I want to trigger InputAction.started one more time

[rigid island]

makes sense. Yeah having all in one spot is convenient, def give realm a look tho . gl

[thin aurora]

The events are public, you can invoke them yourself.

https://github.com/Unity-Technologies/InputSystem/blob/develop/Packages/com.unity.inputsystem/InputSystem/Actions/InputAction.cs#L543

[thick terrace]

even a public event can only be invoked privately

[thin aurora]

Oh right

Then use reflection

Reflection can bypass the internal and private stuff

Just don't add it as actual behaviour, only for testing

[gray mural]

I cannot invoke it.

[eternal aspen]

Hi guys, does someone know how to change position camera when sphere named "Player" will be in section ? (section - cube without collision)

[gray mural]

what do you mean by reflection?

another method that will do the same stuff or what?

[thin aurora]

Reflection is a way to access class info that normal stuff can't do, so you can access the event and manually invoke it

[gray mural]

I see, thanks

[gray mural]

that's what I was aiming for

looks laggy because of the recording, there is 200 fps

basically when you hold e.g. D button, it moves right, and when you start holding W button, it moves up

holding A and D together makes Vector ofc (0, 0)

[knotty sun]

@rigid island http://www.s100computers.com/

[rigid island]

found some of these on ebay but most of them are in broken conditions or untested

expensive though 200+ for an old board xD

[knotty sun]

break out the soldering iron and osiciscope

[rigid island]

haha yeah that's actually my next investment is oscilloscope

[knotty sun]

we've got a garage full of this shit dating back to '76. But we aint selling

[rigid island]

yeah I wouldn't either, that stuff is priceless imo. History in the making

[quartz vessel]

FirebaseDatabase.GetJSON(usersTableName , gameObject.name, "DisplayData", "DisplayErrorObject");
}

i am using this line to get data from firebase , but GetJSON is no calling the callback methods. can anyone tell me how can i call callback methods?

[rigid island]

this isn't Unity related. Probably try firebase discord

[quartz vessel]

this is unity related. if u work on firebase webgl

[thin aurora]

Try using nameof() for the method names

Who knows, you might've misspelled them

[rigid island]

how's FirebaseDatabase at all related to Unity though?
you at very least should provide the source of the methods you used and how does it apply to unity

the docs for unity SDK shows a completely different method then what you showed . Where is this GetJSON method ?

[quartz vessel]

i don't think so . here is my code. and second pic is of error that i am getting.

[desert wind]

For my script, I'm trying to make it so that once the player steps on a "SafeZone" a place where they can change their character, it updates a Ui sprite showing what character they are. The variable currentCharacter doesn't seem to be updating even when the "Player" is colliding with the "SafeZone". Here is the code.
https://paste.ofcode.org/63uE92nHJKKHYcxgmn6SwV

is it because I'm trying to reference the collision of two seperate game objects?

[thin aurora]

Idk, I don't use it

The error is not clear enough

And honestly, I can't work with "I don't think so". Just try it, and play around with the settings. One might fix it.

[quartz vessel]

i mean misspelling of function name is not a problem , that's why i shared the pic of function where i am calling and which i am calling. it looks totally same. Thanks for suggestion , actually i used nameof() as well.
As u said u didn't use this, so its okay. Thanks again for your precious suggestion , it actually means alot for me. 🙂

[carmine wind]

Hello I have this structure for an enemy. the Body is the actual enemy which moves but his body is the MainBody which rotates like a ball. I have a NavMeshAgent moving the Body and am manually doing mainBody.Rotate(agent.velocity, speed); to rotate the ball body as he's moving.
but this rotating doesn't fully match with his speed and doesnt look very nice.

Is there some math I can do with the rotation? I tried adding rigidbody to the MainBody but that causes it's own problems

[molten sandal]

Quick question, is there any diference between:

rb.AddForce(force1);
rb.AddForce(force2);

and:

totalForce = force1 + force2;
rb.AddForce(totalForce);

[leaden ice]

no not really

[gray mural]

more force

oh, no

the same

haven't mentioned

[molten sandal]

And for best practice?

[leaden ice]

whatever makes your code more readable and organized

[gray mural]

I would suggest 2nd one, it looks better

and more readable

[molten sandal]

Kk

[left crypt]

does anyone know how to use monoinjector for c++

[vast wyvern]

Hello everyone!

I wanted to ask real quick if I am overcomplicating something. I currently am working on a project where I have a skinned mesh renderer with multiple materials that happen to be render textures. My goal is to be able to receive a QR code and paste it into one of the textures. One resource said to use .Blit(), but that seems to replace a texture channel instead of combining them. Another resource said to create a custom shader that has a slot for the overlay texture.

I am trying to see if there is a resource already created within unity to work this out? Or if I am using Blit wrong lol.

[leaden ice]

You could either use a custom shader or modify the albedo texture

[vast wyvern]

Ah, is modifying the albedo texture possible during runtime?

[leaden ice]

of course

[vast wyvern]

Oh yeah I think I already am elsewhere in my project lol.

[modern creek]

My unity seems to be .. doing something? to my sprites by just selecting them, prompting me to save changes. Any ideas?

[steady moat]

Do you have a custom importer ?
Also, are you able to know what is being change ?

[modern creek]

No custom importer, and no idea what's changing, although I could check git in visual studio

[upper pilot]

How can I use Vector2.Distance and apply object width/height into equation?
Currently the distance is measured from and to the center of an object.

I want a collision to check walls of both objects for the distance.

I can write the code for it, but perhaps there is a built in function for that?(I dont want to use built in colliders)

[leaden ice]

Are you doing manual collision detection?

[upper pilot]

Yes

It's very basic

It's not about collision, but rather checking the distance between objects.

[leaden ice]

well if you're not using colliders at all you'll need to do all the math yourself

[upper pilot]

The issue is that my units walk inside a building, instead of standing next to it in order to attack.

[ashen yoke]

what represents the building?

[upper pilot]

I mean the building does use a collider

[ashen yoke]

mesh/collider/sprite?

ok collider.bounds.ClosestPoint

[upper pilot]

but the unit doesn't

[ashen yoke]

buildings are axis aligned?

[upper pilot]

Because I dont use gravity which cuases units to do weird things when they collide.

Yes they are on the same Y axis

[leaden ice]

your options are:

• implement your own collision system
• work with Unity's physics (including perhaps physics queries)

[ashen yoke]

units use navmesh?

[leaden ice]

if it's all axis-aligned boxes the collisions are simple to process

[upper pilot]

Units are not on same Y axis(a bit random, but close)

so if I use unity collision system, units start rotating when they hit with their "heads" lol

[leaden ice]

constrain the rotation on the rigidbodies

[upper pilot]

Is there a way to prevent any movement when collision occurs?

[ashen yoke]

is that an RTS?

[upper pilot]

Or do I need to write a script for that.
Currently I loop through all active units + buildings to see if they are in "attack range"

No its a simple uh 2 side castle wars type of game

you send units on a straight path

[ashen yoke]

played those

[upper pilot]

but with a slight random Y(just visual)

[ashen yoke]

use physics save yourself headache

[upper pilot]

But I can't rely on collision detection for everything

Unless I add secondary collider as a trigger for unit attack range.

[ashen yoke]

yes

[upper pilot]

Would that be a better way?

[ashen yoke]

or use Overlaps

[leaden ice]

that's very standard

[ashen yoke]

you can have as many colliders and triggers as you want on different layers

[upper pilot]

Do you mean this kind of overlap?
https://docs.unity3d.com/ScriptReference/Physics.OverlapBox.html

[ashen yoke]

the nonalloc one

dont use this one

[upper pilot]

What is the nonalloc?

[ashen yoke]

in your link click Physics, read the api

[upper pilot]

ah

It says that OverlapBoxNonAlloc this method will be depreciated in the future

and that I should use OverlapBox instead

[ashen yoke]

in the future?

they made OverlapBox non alloc?

[leaden ice]

this is true but you just use the overrides that are non alloc

[upper pilot]

but I think that I want a regular one either way? Since it returns an array of units?

[leaden ice]

which are the ones where you provide array or list for the results

[ashen yoke]

if not then use non alloc and when, in the future, they replace OverlapBox with non alloc version, you can swap to it

[leaden ice]

the new overloads are already there

[ashen yoke]

depends on version

not for me

[ashen yoke]

dont use the methods that return you arrays

in hotpaths

[upper pilot]

Collider2D[] The cast results returned. 

[ashen yoke]

yes dont use that

[upper pilot]

Why not?

[leaden ice]

it's for 2D

[upper pilot]

yeah I am on 2D

[ashen yoke]

because you are allocating an array for each call

non alloc means no allocation

you create a buffer once and its reused

[modern creek]

Looks like it's ... doing something related to the build target being webGL?

[upper pilot]

        foreach (UnitBase unitBase in SpawnerSystem.Instance.ActiveUnits)
        {
            if (unitBase.faction != faction && isUnitInRange(unitBase))
            {
                unitBase.TakeDamage(damage);
                return;
            }
            else if(isOpponentCastleInRange())
            {
                // Attack castle
            }
        }

I am already doing this lol, tho the List contains all units(including allied)

[modern creek]

Actually, no, the build target is set correctly as windows - but I've recently installed WebGL as a module

(gamejam things)

[upper pilot]

And I do this to change unit state(which basically acts as a collision)

        foreach (UnitBase unitBase in SpawnerSystem.Instance.ActiveUnits)
        {
            if ((unitBase.faction != faction && isUnitInRange(unitBase)) || isOpponentCastleInRange())
            {
                state = UnitState.Attacking;
                return;
            }
            else state = UnitState.Moving;
        }

[modern creek]

Should I reimport all?

[upper pilot]

Is this bad enough that I should switch to Unity physics asap?
The game is small, nothing crazy

[ashen yoke]

its not bad

[steady moat]

Have you change your build target ?

[upper pilot]

    private bool isUnitInRange(UnitBase unitBase)
    {
        float distance = Vector2.Distance(transform.position, unitBase.transform.position);
        return distance <= attackRange;
    }

[steady moat]

Normally changing build target reimport all.

[modern creek]

No, build target is (correctly) windows, but I did install the WebGL module for another project recently

[upper pilot]

That's how I determine that, so I need to apply Unit/castle width * 0.5 to the formula and it should work(Or maybe change Pivot for those)?

[ashen yoke]

you can simply create a transform or a set of transforms that represent the stopping points for units and use them

[modern creek]

I'm just gonna reimport all

[ashen yoke]

this will be the most convenient way to manage it

[upper pilot]

What do you mean?

[ashen yoke]

your building prefab, open it, create empty game objects, use them as points the units have to reach

[upper pilot]

oh you mean for the castle?

[ashen yoke]

yes

[upper pilot]

Yeah I was thinking of creating a "wall" of sorts

Guess simple is enough for this 😄

[ashen yoke]

how many units on screen?

[upper pilot]

I assume no more than 100(its a mobile game)

[ashen yoke]

unitBase.transform.position cache this

dont use Vector2.Distance

compare square magnitude instead

[upper pilot]

What do you mean by cache? Does it update the position when the unit moves?

[ashen yoke]

cache means store it, once

i assume buildings dont move?

[upper pilot]

so if I make a list of unit postions it will keep track of it?
Tho I still need to access the Unit to check if it is the enemy unit.

yeah buildings dont move

[ashen yoke]

thats why i said to cache

[upper pilot]

so I will have a List<Transform> units; then I have to do units[0].GetComponent<UnitBase>(); right?

For those units in range that I want to attack.

[ashen yoke]

unitBase is not the building?

[upper pilot]

ah no

[molten sandal]

If I decide to move an object by changing it's transform directly, collitions won't work, right?

[ashen yoke]

i assumed its a building

[upper pilot]

Its unit script that stores its information. Like a controller I guess.

[rugged goblet]

If it's a rigidbody move it by using rigidbody.MovePosition

[grim pecan]

Trying to figure out how to not hard-code this

[ashen yoke]

units[0].GetComponent<UnitBase>() to units[0]

where units is List<UnitBase>() already

basically dont make unnecessary calls to unity api

[upper pilot]

    public List<UnitBase> ActiveUnits => activeUnits;
    private List<UnitBase> activeUnits = new();

I do this

[ashen yoke]

dont access transform unity apis, cache values that can be cached

[upper pilot]

so do I make second List to store position?

[ashen yoke]

no

units are dynamic

makes no sense to cache their position

[upper pilot]

Because I need both position + UnitBase(it has functions like TakeDamge)

[ashen yoke]

buildings, stopping points can be cached

[upper pilot]

yes thats what I thought

ok that makes sense

I made a mistake with how I wrote the code for castle spawning.

I have a class that has 2 instances for 2 castles.
But they vary a bit in how they spawn units(player presses a button, but enemy is automated)

Do you think its something worth fixing?

https://i.gyazo.com/b6fa70a915d646ac24f26bd78142312c.png

[ashen yoke]

i dont understand the question

[upper pilot]

SpawnerSystem is where I store a List<UnitBase>

Basically I feel like I made a mistake with this class

[pure cliff]

I personally am a fan of strategy pattern for when you have 2 foos that do very similiar things, but slightly different

[upper pilot]

They are used by 2 castles(1 for player and 1 for AI)

Differences are:

    [SerializeField] private int spawnDirection;
    [SerializeField] private Faction faction;
    [SerializeField] private Transform spawnLocation;

And the way units are spawned.

[upper pilot]

Yes basically my problem 😄 I have similar classes

So I just do some if's

if(faction == Faction.Ally) PlayerAction();
else if(faction == Faction.Enemy) EnemyAction();

[ashen yoke]

usually i design such things in such way that the "spawner" becomes a factory that only does things that are externally requested.
then the user input becomes one user, and an ai script becomes another

this way your object has no idea who is using it and doesnt care

[upper pilot]

    private void DoEnemySpawn()
    {
        if (Time.time > nextSpawn)
        {
            nextSpawn = Time.time + spawnRate;

            SpawnUnit(unitPrefab);
        }
    }
    private void FixedUpdate()
    {
        if (faction == Faction.Enemy)
        {
            DoEnemySpawn();
        }
    }

And player spawn happens in a different script(its a button press) That is put on a button UI element
Both use same SpawnUnit(unitPrefab) function.

[pure cliff]

yeah so what you want is something like:

interface IFactionStrategy { ... }
class EnemyFactionStrategy : IFactionStrategy { ... }
class PlayerFactionStrategy : IFactionStrategy { ... }

public class FactionStrategyProvider
{
    public IFactionStrategy For(Faction faction) => 
        Strategies.First(s => s.Faction == faction);
}

public class YourClassHere {
    void YourMethod(UnitBase unitBase)
    {
        var strategy = StrategyProvider.For(unitBase.Faction);
        DoCommonLogicA();
        strategy.DoFactionSpecificLogicA();
        DoCommonLogicB();
        strategy.DoFactionSpecificLogicB();
        ... // Etc etc
    }
}

[upper pilot]

That sounds like what I should be doing.
So I am close to it, just need to move things out of the castleSpawner script into a more general Spawner script.
Then I can probably keep using shared CastleSpawner with few differences(spawnDirection + spawn location)
But thinking ahead, it's probably better to have separate scripts, since AI spawning will also have some sort of Spawner system with unit list/amount for different difficulty levels.

[upper pilot]

I need to look up strategy pattern, it's been a while and I doubt that I can implement your solution easily atm.

[pure cliff]

I pretty much wrote most of it there, thats about all there is to it

[upper pilot]

yeah but I need to understand it

I can't see where you use FactionStrategyProvider in the code

Is it StrategyProvider?

[pure cliff]

yeah you have an instance of it

or like, make it a singleton or whatever your way about it is

[upper pilot]

What is .For?

is it some sort of linq thing?

[pure cliff]

nah thats the method I declared in FactionStrategyProvider

[upper pilot]

I am afraid of linq, cuz it broken my old project for some reason and I never used it since then 😄

[pure cliff]

I just lambda'd it cuz its a 1 liner

[upper pilot]

ah

[pure cliff]

but what I wrote is the same as

public IFactionStrategy For(Faction faction)
{
    return Strategies.First(s => s.Faction == faction);
}

[upper pilot]

So you store strategies as a List somewhere?

[pure cliff]

yeh

you can either do drag and drop with editor if thats your speed, or dependency injection, or service locator, whatever fits your workflow

[upper pilot]

So its almost like an if statement, but with extra steps?

I guess it has its benefits tho

[pure cliff]

You also could just store them in a dictionary instead of list even

[upper pilot]

So it returns a class either PlayerFactory or EnemyFactory and both of them share a script like .SpawnUnit

[pure cliff]

then itd just be

return Strategies[faction];

Which will be even faster cuz lookups on dictionaries are fast, and the assumption is you wont be registering more than 1 strategy per faction

[upper pilot]

so you don't need to do if(faction == player) doPlayerSpawnUnit();

[pure cliff]

yeh you'd just do
strategy.SpawnUnit()

[upper pilot]

But the issue I think is that player spawn units differently from the enemy.
it uses an UI button.

How do you put that into this pattern?(do you have to?)

Is it YourClassHere.YourMethod that you throw on a button?

I guess as long as the function knows who called it then it doesnt matter.(either player or AI)

[pure cliff]

yeah so, with the strategy, you already know who called it implicitly, cuz if its method is hit, it will just do its thing

public class PlayerFactionStrategy
{
    public void SpawnUnit()
    {
        // We already know player is doing the spawning here, regardless of what called this, so we just focus on spawning the unit for player here and assume whoever called us knew what they were doing
    }
}

This also opens up your ability to do stuff like, perhaps, have multiple ways players can spawn units.

Clicking UI will call PlayerFactionStrategy.SpawnUnit.
If they have an automatic spawner they built, that thing also just calls the same method.
If they have a unit that spawns a unit when it kills a unit... it would also call that method

etc etc, they all can just call the same method (and ideally you pass in some metadata about how/where/which unit to spawn

So maybe instead

public class PlayerFactionStrategy
{
    public void SpawnUnit(UnitSpawnInfo spawnInfo) { ... }
}

[upper pilot]

That makes sense.
So I was going to ask, but you kinda answered with the second part.
Since I don't need to store the spawn location, PlayerFactionStrategy doesn't have to be a monobehavior.

[pure cliff]

eyup

[solemn rune]

Trying to get my player's input frame rate independent, but stumbling on a thing: I rotate the player's object based upon the mouse's horizontal axis (in Update), but if I multiply by Time.deltaTime the eventual rotation is faster at slower framerates then at higher rates?

float adjustedRot = (s_Input.mouseHorizontalAxis.ReadValue<float>() * setUpRotationSpeed * Time.deltaTime);

what am I doing wrong? the Time.deltaTime should smoothen that out, right?

[upper pilot]

Are you doing this in an Update or FixedUpdate?

[solemn rune]

update

I am using the "new" input system (hence the ReadValue). Is that just frame rate independent?

with axis

[rugged goblet]

I believe that input axes already have deltaTime applied to them

[solemn rune]

slaps his forehead

thanks 🙂

[leaden ice]

They don't

Only mouse input is framerate independent

[leaden ice]

Mouse input has always been framerate independent

[solemn rune]

makes sense.. I was just checking on keyboard / controller axis and why they had the Opposite effect in regards to framerates as the mouse axis

[desert wind]

For my script, I'm trying to make it so that once the player steps on a "SafeZone" a place where they can change their character, it updates a Ui sprite showing what character they are. The variable currentCharacter doesn't seem to be updating even when the "Player" is colliding with the "SafeZone". Here is the code.
https://paste.ofcode.org/63uE92nHJKKHYcxgmn6SwV

[solemn rune]

Does the OnTriggerStay function trigger correctly?

I would also just change that var in OnTriggerEnter and OnTriggerExit

[mortal harbor]

how to resolve this

[lean sail]

What are u trying to do with this? The error tells u exactly what's happening, you have a dictionary that does not contain "None" which your enum does

[leaden ice]

Why are you using GameObject.Find?

[mortal harbor]

thnxxx brooo !

solved

[lean sail]

all I did was ask what you were trying to do and repeated what the error said

[mortal harbor]

when i looked at my own screenshot, i understood lmao

[lean sail]

I would still change this system a bit, you can loop over the dictionary with its .keys and .values or just really any way that you see on google. rather than attempting to store all its keys in an enum, because this will be fragile

Everytime u add to the dictionary, you'll have to type that into the enum

[mortal harbor]

hmm

[desert wind]

By checking that the character is not null, its supposed to change the sprite over the safe zone to that character

[leaden ice]

huh?

[carmine wind]

Hello I have a gameobject with a navmeshagent and it has a child which is a sphere, I want to rotate that sphere in the direction of the NavMeshAgent.velocity. but idk how exactly the math works for that. the sphere should rotate/roll as if it has the agent.velocity itself and is on the ground.
I tried childTransform.Rotate(agent.velocity) but it doesn't work

[desert wind]

if the character is found in the scene, the UI sprite is supposed change to show that character

All the characters have the "Player" tag so I'm using GameObject.Find instead if that's what you're asking

[leaden ice]

there's no need for either Find or FindWithTag

[gray mural]

I have never had troubles with raycasts but now. Collision is just not detected. I have also drawn it with Debug.DrawRay

Vector3 newPos = transform.position + dir * moveUnit;

Ray ray = new Ray(newPos, Vector3.forward);

if (Physics.Raycast(ray, out RaycastHit hit, 10f))
{
    transform.position = newPos;
    print("hits");
}

Debug.DrawRay(newPos, Vector3.forward * 10f, Color.red, 100f);

yes, it does have Collider

[leaden ice]

show the collider gizmo?

also why are there 3 lines

[gray mural]

becaue this method was called 3 times with different WASD directions

[leaden ice]

YOu're doing a 3D physics query against a 2D collider

Try Physics2D.GetRayIntersection

or use a 3D collider

[gray mural]

do I check for null?

[leaden ice]

https://docs.unity3d.com/ScriptReference/Physics2D.GetRayIntersection.html
it returns a RaycastHit2D
https://docs.unity3d.com/ScriptReference/RaycastHit2D-collider.html

Note that some functions that return a single RaycastHit2D will leave the collider as NULL which indicates nothing hit. RaycastHit2D implements an implicit conversion operator converting to bool which checks this property allowing it to be used as a simple condition check for whether a hit occurred or not.

[gray mural]

oh, actually I don't need to check for null, in converts itself

@leaden ice thank you, it works now!

[feral mica]

This code still gives this error: . But I don't see the problem. I stopped the emitting process. I don't see a need to clear the things it has already emitted (and I don't want that to happen). Any ideas how to get rid of this?

[leaden ice]

it's telling you exactly what to do

[feral mica]

won't that clear the existing particles?

[leaden ice]

yes

the thing you want to do is apparently not supported.

[feral mica]

damn that sucks

[lean sail]

You could make the duration longer than what you need, or short and loop it assuming that's the same in your particle system. Then stop it after the duration rather than trying to change the duration at runtime

[feral mica]

I was looking into the looping work around. Thanks !

just loop=true and using play and stop works like a charm 🙂

[desert wind]

The player characters are prefabs and are not within the scene until the level starts, so I have to call them this way

[soft shard]

Not sure if this is a code or animation question, lets say I have 2 "types" of enemies "Melee" and "Ranged", who use an "Attack" state, but the animation is different for each "type" of enemy, everything else like movement, falling, etc are all the same between "types", what might be a good way to handle the different attacks? Should I make each attack its own state with a switch-case to play by name based on the type, or use a int animation param and assign each attack an arbitrary index or give each enemy their own animation contrroller? If the latter, how would I handle similar states like movement, falling, etc, since attacking and maybe 1 other feature would be the only differences between controllers

[leaden ice]

Are the animator state machines for each enemy the same?

Just different animation clips in each state?

e.g. same states, same transitions, etc

If they are - you should use this https://docs.unity3d.com/Manual/AnimatorOverrideController.html

[soft shard]

Ah, ill try that out, thanks - yeah for the most part they are essentially "same states, transitions etc, different clips"

[hollow hound]

Why monobeheviours have persistant state between game launches and how to avoid this?

[leaden ice]

they don't unless you:

• are using static variables
  and/or
• are not doing domain reloads when entering play mode

[hollow hound]

I am not using static variables. I am not doing domain reloads when entering play mode.
But what I do, is not instantiating my prefab while editing its state.

[leaden ice]

you shouldn't edit prefabs at runtime

just as a general rule of thumb

and you should generally do domain reloads when entering playmode

but yeah any time you make changes to any asset (including prefabs, SOs, materials, textures, etc) in the editor it will be permanent

[hollow hound]

Why? How can I reduce character hp without editing it components? Or do you mean prefabs I am not instantiate?

[leaden ice]

you reduce the HP of the spawned character, not the prefab

[upper pilot]

Hey, is there any reason why you call the method .For? Is this a thing when using strategy pattern?

[desert wind]

For my script, I'm trying to make it so that once the player steps on a "SafeZone" a place where they can change their character, it updates a Ui sprite showing what character they are. The variable currentCharacter doesn't seem to be updating even when the "Player" is colliding with the "SafeZone". Here is the code.
https://paste.ofcode.org/63uE92nHJKKHYcxgmn6SwV

[somber nacelle]

https://unity.huh.how/programming/physics-messages

but also you're just assigning the sprite variable in your component. you aren't actually assigning the sprite to the sprite renderer

[high condor]

does anyone know how to make your game able to be fullscreened?

[leaden ice]

https://docs.unity3d.com/ScriptReference/Screen-fullScreen.html

[high condor]

would I have to make some sort of button in the game to toggle between it?

hol on nvm

thank u :3

[leaden ice]

yep - that's how it works typically. In the game menu you typically have a setting for Fullscreen vs windowed

[high condor]

that's true, yea

i'm gonna see if i can make it just f11 key for that

[floral fractal]

i was expecting, i can open Text Asset in VS code, simply for view and edit its content,

[compact spire]

Is there a way to force scriptable objects to behave in the editor like they do in standalone build?

[floral fractal]

wdym?

[compact spire]

So, as I understand it, making changes to SO assets in the editor changes the asset on disk. Making changes to a SO in a standalone build only persist as long as the application is running, changes aren't written back to the asset.

[simple egret]

That's correct. Hence why scriptable objects should not be used as mutable data containers

[somber nacelle]

the best answer is to not use scriptable objects as mutable data

[simple egret]

You'll have to roll out your own save system (using JSON or similar) to make it work

[compact spire]

but they are so convenient as a method of modifying instances of a prefab without having to hook much up

[white gyro]

What happens when you right click the created asset and click reimport?

Also have you tried using System.IO.File.WriteAllText() instead of creating a TextAsset? This is what I use in my editor tools.

[ashen bough]

How can I get an array of coliders of all the players in the scene through their layermasks? Without using "Physics.OverlapSphere" or any other radius stuff

[soft shard]

If your players all have at least 1 common script, you could use FindObjectsOfType<SomeScript>(), otherwise you could get all GameObjects in the scene and check each of their layers, store matching ones in a list and return the list (or use Linq), though either approach would be best done infrequently or not during gameplay, depending how your game works, there may be better ways you can just cache the players initially so you dont need to do a Find at all

[white gyro]

When you spawn the players, put them in a list and remove them when they despawn.

Then you loop through the list to do what you want

[ashen bough]

okey thanks

[mighty yew]

I have a collider attached as a child to my player character and I'm using it as the hit detection for specific attacks. I have one (combat) script on the main character, and a script on the collider for using "OnTriggerEntry". Is there a way to communicate properties of the attack from the combat script to the on trigger entry script?

I could have it so that I have a reference to the on trigger entry script in the combat script, but that won't really work too well, so im hoping for an alternate solution

[white gyro]

How about GetComponentInParent<CombatScript>() ?

[spice dew]

I need help, I have a First person camera, how can I make so that the player can see the arms but not their own body, but still see other players body, and see their reflections on mirrors?
I saw having two meshes one for full body and one for just arms, and display one depending on wether its the player or other clients, but that wont show the players body on mirrors will it?
any thoughts?

[white gyro]

You will need to have multiple cameras that render only specific parts of the player's mesh.

You can use the first person camera to only render the local player's arms but still render the remote player's body using the Culling Mask setting.

[delicate zinc]

i'm having a bit of troubles with vector math, mainly because its a bit complex for me sometimes

I'm currently making a detection system for my AI (pic down below), said dettection system knows the range (The yellow sphere gizmo) and a View Angle (In this case, the AI can only "detect" targets that are inside the two vectors (90°))

I'm already doing an overlap sphere and obtaining valid targets for the AI, the only issue now is to do a LOS check, in a scenario where the AI only has a cone view of 90°, i want the LOS check to return true only if a valid target is inside the cone view

how can i do this?

[white gyro]

Fire multiple raycasts from one end to another.

[delicate zinc]

huh

i... guess that works

[white gyro]

You do it like this

oh wow that's hella crunchy

[floral fractal]

i guess thats it, we can't open text asset via Code Editor, the extensions of file itself is .asset, so i do have option my data as json.txt but all because my personal preferences for using Text Asset, i didn't make that as txt, so all good for now,

[crisp dust]

I am trying to implement restarting my game by unloading and reloading my scene. But when I do that the scene seems to be in some midway state where a lot of the objects seem to carry over their previous state. I assume I am doing something nonstandard that's causing things to not clean up properly. Anyone have recommendation on what patterns to use to make the scene restartable? Or maybe tips on how to debug why my reloaded scene is in this stale state?

[white gyro]

Do the objects that don't reset properly have any scripts in common? Or are they involved in some manager script at all?

[crisp dust]

no it seems like many scripts are in that state

but I am the common factor haha so maybe I jsut implemented the same bug in all of them

[somber nacelle]

do you have any objects that you use DontDestroyOnLoad for?

[white gyro]

Are all the objects existing in the scene or are they generated at runtime?

[crisp dust]

Almost all exist in the scene. Some UI widgets are generated at runtime.

[crisp dust]

Not directly but I might guess that Feel and DoTween do

which I usee

maybe they are holding references to things and I am not cleaning up properly?

[white gyro]

For DOTween you should ensure that no tweens are happening when you reload.

I don't know what Feel is so I can't comment on that.

[crisp dust]

Do you mind spelling out for me what might happen if a tween is going on?

it might prevent GC of some objects?

[white gyro]

Lots of NullReferenceExceptions for the most part. Some objects might remain on memory unintentionally.

Try calling DOTween.KillAll() before reloading the scene.

Of course without knowing what else happens in your code we can't tell if that's what's causing it.

[floral fractal]

for me tween maybe the culprit, as they usually dont destroy, so when you reload scene, your object is being destroy, but the tween still need it

[lean sail]

you should stay with the overlap sphere strategy or even use a trigger collider and then calculate the angle between the targets and the direction the AI is facing.
https://docs.unity3d.com/ScriptReference/Vector3.Angle.html
Using a TON of raycasts to avoid the 1 math function is a shitty solution, for a bunch of reasons. Raycasts wont even guarantee that a target is seen if its within your LOS zone.

[floral fractal]

happens for me when using LeanTween too, so make sure you kill all the tween

[crisp dust]

cool thanks for the ideas!

[delicate zinc]

Truly

Yeah I was like "I guess that works"

No way I'd do that cuz that's just awful for performance

[white gyro]

It's not though but you do you.

[delicate zinc]

[lean sail]

worse performing solution, with launching many raycasts that wont catch targets in a ton of areas, vs a better shorter solution guaranteed to do what they want

[delicate zinc]

Doing single raycast > doing multiple

Shrimple as that really

[white gyro]

yeah but that sounds like premature optimization

worry about performance when it tanks

¯_(ツ)_/¯

[lean sail]

🤦‍♂️

[delicate zinc]

Fair, I still wouldn't do something like that because I just cringe at it

[lean sail]

"premature optimization" doesnt mean you should opt for a worse performing solution that DOESNT work in every case

[delicate zinc]

Friend of mine recommended using Vector3.Dot() and do some more math to determine if it was inside the view cone

But I think the angle idea you mentioned would suffice in this scenario

[lean sail]

note how the issue i brought up here was "Raycasts wont even guarantee that a target is seen if its within your LOS zone"
I did not mention performance, although that is one factor

[white gyro]

It will though

[delicate zinc]

It won't lol

[lean sail]

ok test it yourself.
there are these cases: Place an object lying down along the floor but its still in the LOS area. The raycast can go over it
Place an object above the raycast, the raycast will go under it
Stretch the LOS sphere to be massive, the raycasts will grow further and further apart

[white gyro]

Then use spherecasts

[delicate zinc]

[quartz folio]

@swift falcon don't cross-post

[swift falcon]

what why

ooo

ok

[quartz folio]

#📖┃code-of-conduct

[swift falcon]

i see k ty

[delicate zinc]

Either way no fuckin way I would spam casts for this

[lean sail]

Why commit to a bad solution, you could just accept theres a better way. Its not preoptimizing to use a better and EASIER solution when it already is known. Its just dumb to stick to a worse solution

[white gyro]

yeah sure

[delicate zinc]

Makes me cringe thinking about it with X amount of AI running Y amount of raycasts every fixed update

[white gyro]

I just prioritize faster iteration over making a "proper" solution that you probably won't utilize because you will drop the project halfway through.

[lean sail]

ah i forgot to mention as well, regardless of what method you choose, you'll want to consider height as a factor. So if the player is above the enemy, do you want that to count towards the angle limit?

[delicate zinc]

Hm yes I will drop my thesis project in the future

[quartz folio]

If you do need to check for line of sight in addition, you can first check the FoV, then you can do some casts selectively towards the player from certain places you care about

[delicate zinc]

Not really, I plan on doing the angle check first and ignore the Y positions by setting them to 0. if that succeeds, launch a single raycast to check if it actually is seeing the object or if said object is behind a wall

[lean sail]

Ah yes i cant believe i forgot to mention that as well, once u find the target you should launch the raycast towards them to make sure there isnt a wall in the way

[delicate zinc]

Aye

Ofc once both checks pass, the AI has a target and can begin attacking, which will be another can of worms I'm dreading to open but since my halfway point is approaching I'll have to do it anyways

[rancid frost]

@steady moat A bit late, but that individual hex mesh idea is fabulous! thanks

[swift falcon]

I think through a weird GitLFS interaction I corrupted my whole project (except scripts which have confusing duplicates)... is there any hope to fix this? If I make a new project, how am I going to put it on Github without using LFS? Can I be sure it won't corrupt again?

[white gyro]

When you clone your project, is the clone broken?

[swift falcon]

yes

earlier versions too

it's a nightmare

[lean sail]

an earlier version should be completely fine, maybe some settings got messed up? did you push using the correct git ignore

[lean sail]

from what ive seen recommended, people will send large files through other methods like dropbox or google drive

[white gyro]

Can you try running git lfs pull in git bash

[swift falcon]

sure

didnt seem to do anything

okay, much earlier versions are fine, thanks for pointing me that way

[white gyro]

Check any commits that modify .gitattributes

I'd backup the repo and try uninstalling lfs https://github.com/git-lfs/git-lfs#uninstalling

[thin aurora]

This is not really the place to ask these things #🔎┃find-a-channel

More like #📱┃mobile

[coral bluff]

Alright thanks

[gray mural]

my character is unstoppable with this movement:

if (hitInfo && hitInfo.transform.CompareTag("GameField"))
{
    print("moved");
    _rigidbody.AddForce(dir * moveUnit, ForceMode2D.Impulse);
}

it's literally flying

[quartz folio]

Impulse is intended for one-off forces, like shooting a cannon ball for example

[gray mural]

I need to move my character so that it will be able to collide with other rigidbodies

teleporting with transform.position won't be good

[lean sail]

doesnt matter what force u apply to it, it'll still be able to collide. with impulse you are just applying a lot more than you think

[quartz folio]

Why have you chosen Impulse?

[gray mural]

to see if it moves fast enough

[quartz folio]

🤔

[lean sail]

the forcemodes are just equations

[gray mural]

I see, I will try to change it to ForceMode2D.Force

it's the same with ForceMode2D.Force

it's just moving with small steps

[quartz folio]

https://unity.huh.how/physics/object-tunnelling

[lean sail]

well yes, u changed the equation used

[gray mural]

yeah, it doesn't just move once. I want to do the same with Rigidbody as if I was doing:

tranform.position += dir * moveUnit;

[quartz folio]

We know

[gray mural]

nice.

but the behaviour is completely different

[quartz folio]

Just increase moveUnit

[lean sail]

physics does tend to be different from teleporting objects (which doesnt exist in the real world)

[gray mural]

also rigidbody2D has just 2 enum options

[quartz folio]

I'm sure you can figure it out then

[gray mural]

I cannot actually. I need to move it on moveUnity that is 1f in my game = 1 "block" of unity

so the position is inted this way

[quartz folio]

Did you change it to Continuous or not?

[gray mural]

yes

[quartz folio]

And it still goes through walls?

[gray mural]

the issue is not that it goes through walls

the issue is that it doesn't move just once

[quartz folio]

lol the original question could have been phrased so much clearer

[lean sail]

an object in motion will stay in motion, unless coded to stop - Newton probably

[gray mural]

I AddForce just once and it moves with small steps (~0.05f) for infinite amount of time

[gray mural]

my character is unstoppable with this movement:

it just moves forever

[quartz folio]

"unstoppable" would imply that walls couldn't stop it

[short hatch]

https://www.youtube.com/watch?v=fMd3B0T5ow0

any earlier tutorial for such thing ?

[quartz folio]

What does earlier mean in this context?

[gray mural]

I see, maybe my English problems. It just moves as if I was moving it in Update with 10 fps

transform.position += 0.05f;

[quartz folio]

Either your character has no friction with the floor (physics material issue), which is the only thing that slows it down, or you are continually applying the force.

[lean sail]

imagine you are rolling a glass ball (in real life) against a glass surface. It would continue to roll for a long time because nothing is stopping it. If you keep pushing it while it was rolling, it would never stop! Im simplifying here because real world obvious has resistances.
Think of rigidbodies as similar, nothing is stopping your rigidbody and you are constantly pushing it. If you want to stop it, you can use friction, drag, or manually slow down its velocity when no input is given

[gray mural]

I see, my Player isn't even on surface

[lean sail]

when adding velocity, you should restrict it to some maximum amount as well

[gray mural]

it doesn't make sense if it's 3d game

but it's 2d

maybe you have any ideas how to make smth stop it?

or should I perhaps try another movement?

like I don't know how to make it, because it's not 3D and GameObject doesn't have z scale

[lean sail]

the concept still works, there is friction and drag in 2D. you can also just apply a counteracting force when no input is given

[gray mural]

is it reliable and efficient?

cuz I have never seen someone doing this.

[quartz folio]

Increase the linear drag on the rigidbody until it stops how you like it

[lean sail]

you'll always have to adjust the numbers to get physics how u want it, its a lot harder to get an object to move exactly 1 unit by velocity compared to transform

[gray mural]

maybe I should use Rigidbody.MovePosition instead?

[gray mural]

sounds hard and not that reliable.

[lean sail]

this really depends on what the object actually is, you would want the rb to be kinematic then

but MovePosition also doesnt care if objects are in the way

[gray mural]

yeah, that's the issue here

[lean sail]

do u even need physics on the object? Otherwise you could just move via transform and check if anything is in your path

[winged mortar]

At this point that's probably better for him

He had something going on with a coroutine, just chuck the checks in there

And done

[gray mural]

yes, probably that's a great idea. I haven't understood the full behaviour of my game yet.
But actually makes sense if I just check OnCollisionEnter2D 🤔

but the little issue is that transform will telepost it instantly

so my player will just stand on enemy if I just change its position

at that point using Vector3.Lerp does make sense, yeah? (that's question)

[lean sail]

maybe not with OnCollisionEnter2D, but just by calculating your next position and seeing if anything is colliding with you at the new position

[gray mural]

I see, I calculate distance between that collision and player and translate player to that distance when they should collide. Then end game

thank you all for your help @lean sail @quartz folio @winged mortar

[solid mountain]

I need help. I am fixing a bug in my game, where, if two bullets collide, the physics engine for some reason crashes, or takes an infinitely long time to process the frame. I found a fix, but it requires a collision to be detected. Is there a way to check for collisions before the physics engine, like, on update? I'm on 2d

[white gyro]

post code

!code

[tawny elk]

Posting code

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

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

[solid mountain]

for context, this script is making the bullet snap back to the player after some time. I decided that if two bullets colide (they are called triangols) they will both snap back

https://paste.ofcode.org/FpBKh6thWTMJgpDMHd6nu2

[short hatch]

latest version of Unity 😬

it's from 5 years ago, but I know it's legit

[solid mountain]

hmmm idea

what if I make a trigger that's bigger than the collider

so I get to trigger, without it messing up the physics

[lusty gull]

hello, we are trying to build our application on mac, using an M1 machine. Unfortunately whatever we do, it ends up at the same error, i will leave it here. It's Bee Artifact
We are using IL2CPP, and we are on unity version 2021.3.11f1
If somebody is able to fix this problem please let us know! We can't get anything to work on M1 machines

[solid mountain]

so, it's web build right?

[lusty gull]

no it's for mac

[solid mountain]

oh then i dont know

[white gyro]

https://forum.unity.com/threads/fatal-error-in-unity-cil-linker-2017-2-0f3.500439/page-2#post-6713905

[white gyro]

Your code doesn't seem to suggest something like this. Is this code the ammo code? And by crash, do you mean Unity shuts down unexpectedly?

[fringe raven]

So Unity utilizes roslyn compiler, and for the latest LTS version, the default c# version that Unity chooses is 9.0, however generally i know for instance on older Framework .csproj i can update language to "latest" to get some more modern feature. IS there anything like that in Unity? I tried changing csproj but it would revert to default 9.0

[solid mountain]

music still playing, nothing working

It seems like it's not a code problem tho.

[white gyro]

Can you take a video of it happening?

[pearl cypress]

Hey guys I have a quick question,

I have a float array (just a flat array) and I want to convert that to a Vector4 array. The memory layout should be the same, but the first array is just layout as floats. Prefferably just a cast no copies, is this possible at all?

Thanks a lot

[white gyro]

How are you planning to convert a float into a Vector4?

[mossy shard]

i think he says a vector with 4 floats and wanting to make a v4 out of it

[knotty sun]

https://learn.microsoft.com/en-us/dotnet/api/system.array.convertall?view=netframework-4.7.1#system-array-convertall-2(-0()-system-converter((-0-1)))
should help

[pearl cypress]

The converter is the way to initialize the array correct?
So effectively just a big loop over all the elements to initialize them?

[knotty sun]

yes, and you get to say what it does so in your case it can group 4 floats into a Vector4 and then skip the next 3 calls

[pearl cypress]

Yea I figgured, thanks
I dont really think what I am looking for is possible

[knotty sun]

what? convert an array of floats into an array of Vector4, of course it is

if you have an array of 16 floats you can make an array of 4 Vector4's

[coral flame]

Hi everyone,
Thank you for your time,
I'm getting a weird bug where I got the native file browser and choose a specific file but the callback only execute after clicking on the power button on Oculus Quest 2 wait a second then awake it (in other word putting it on sleep then awake it)

void Start()
 {
     NativeFilePick();
 }
 private void NativeFilePick()
 {
     //string[] fileTypes = new string[] { "audio/*" };
     string fileTypes =  "audio/*";

     NativeFilePicker.Permission permission = NativeFilePicker.PickFile((paths) =>
     {
         if (paths == null)
             Debug.Log("Operation cancelled");
         else
         {
             print(paths.Substring(0,paths.LastIndexOf("/")));

             FilePath = paths.Substring(0, paths.LastIndexOf("/"));

             dir = new DirectoryInfo(FilePath);
             info = dir.GetFiles("*.*");
             CountFilesInDir();

         }
     }, fileTypes);

     Debug.Log("Permission result: " + permission);


 }

[pearl cypress]

No, I know it is possible, but I dont think it will be performant enough for my use case.
Right now I am sending a float array to the gpu, and wanted to optimize this using a vector4 array. But if I am going to spend more time initializing the array every frame it isnt an optimization.

I was really just looking a way to cast it, or trick unity into thinking it is a vector4. Because the memory is layed out exactly the same way.

[knotty sun]

then you need to look at using unsafe code which will do that

basically a re-map of the array

[pearl cypress]

Yea I tried looking for that, some pointer magic. But I couldnt work it out how to do it

[knotty sun]

learn C++

[pearl cypress]

I know c++ 🙂

have been using it for the past 7 years haha

I am well familiour with pointers in c++.
But for instance, unity doesnt seem to like to dereference pointers?

[knotty sun]

then it should not be a problem. C# is typesafe, C++ is not, so unsafe code in C# gives you the un typesafe facility you need

NativeArray should do it for you

[pearl cypress]

Can I bind a native array to a material?
Or is it just a way to cast it?

[knotty sun]

to a material, no. to a texture used on a material, yes

[pearl cypress]

wait what?

[earnest gazelle]

Hey, How can I suppress exiting play mode when a user presses play mode?
I want to show a dialogue box with yes and no button

open a dialogue box before stopping play mode unity

[craggy cedar]

My list in a structure in a list is somehow getting edited (Count 1 to 0) without the second list getting read or set according to VS Debug, what's going on???

[latent latch]

https://docs.unity3d.com/ScriptReference/ISerializationCallbackReceiver.html
I'm using this interface for some nested classes inside of my SO and noticed that while debugging it's being constantly called even without making edits to the data. Is this intentional?

Really what I'm trying to accomplish is calculating and caching data with my nested classes while trying to keep the SO immutable.

[craggy cedar]

I think this has to do with ScriptableObjects disappearing after a yield return

[earnest gazelle]

EditorApplication.wantsToQuit works when quitting editor not play mode

[haughty zephyr]

Any idea why my project keeps hanging like this? Deleteing my library & temp folder fixed it, but it's the second time this morning already.

Changes to the project include integrating Unity Authentication & Remote Config.

[lusty gull]

usually when it does like that after some time it works, and then next time is a lot faster. Try waiting 5 minutes before closing the window. Also check in the task manager whether the unity editor is allocating resources and moving memory around

[dark delta]

Hey guys, I have a question concerning the performances of my game. Does using an event based system for my player Input rather than the Update function will improve the performance of the game or change nothing?

[haughty zephyr]

The last one was 55 minutes, before I killed the process. 😅

So I rebooted the project, hit play, fine. Made a change in my scene, saved it, hit play. Hangs.

[lusty gull]

very strange. what comes into my mind is: check how much the scene file weights, check if some plugins save stuff in the scene file. If deleting the library folder fixes it, i think it's a meta file problem, or maybe a cyclic reference that doesn't resolve

do you use Odin for serialization?

[steady moat]

No. It should not change performance drastically.

There is a lot of other things that can be changed before.

[dark delta]

Alright

thank you so much for your answer pal

[haughty zephyr]

No we don't, nothing too special in the project AFAIK. It was working fine until I started integrating the UGS stuff.

[rain minnow]

No, events are normal to use. You're just moving where the input polls to Unity's input system . . .

[steady moat]

The question was about performance.

Event base Input and Input Pooling is different.

[craggy cedar]

Alright, turns out I forgot to switch lists when deleting elements but more importantly, arrays and classes are passed by reference

[haughty zephyr]

Hmm, I'm also seeing these new plus signs & blue bars on my scripts - which I've added to this game object. Any idea what that means? We use GitHub for our repo, so if Unity is recognising changes, maybe there's a setting that has been changed.

[steady moat]

This is because you added value to a prefab.

[haughty zephyr]

OK, so it's recognising the prefab change. So probably not the cause of my Unity breakdown.

[steady moat]

Usually, when you have an issue that is hard to track, you roll back the change.

And try again, but slower.

You could also try to inspect what Unity is doing while hanging with a Debugger.

Then is also the Editor Log that can help you.

[haughty zephyr]

Do you mean using Debug Logs? I can't get into play mode at the moment, no matter what scene I'm loading. So seems like a project collision.

i'll try and find the editor logs, thank you.

[steady moat]

No, I mean looking into the EditorLog files.

And using a Debugger such as Visual Studio

To stop the execution.

[haughty zephyr]

Thanks, but I see nothing.
It loads modules, posts an assembly line, then no other responses.

[gray mural]

what ide is it?

[haughty zephyr]

That's the VS that comes with Unity

[steady moat]

You gotta stop the execution of the code.

To see something.

Then you can go in thread section see what thread is doing work.

And, maybe, you gonna see a while(...)

(Also, be sure to attach to the Editor)

[haughty zephyr]

Thanks for your patience, just trying to figure out how to do this. Will google the steps.

[steady moat]

Unfortunaly, this is not something you gonna find on google easily.

[haughty zephyr]

OK, so once I attach and it updates the console outputs - do I just hit Pause in VS?

[steady moat]

Yes

[lusty gull]

attach the debugger to the unity editor instance, and set up a break point in visual studio. when that point in the code is reached, the execution will pause and you can inspect the values that are held inside your variables

[steady moat]

The user does not know where it hangs.

They cannot set a debug point

[haughty zephyr]

I can see the threads, just not seeing anything jumping out at me.

[steady moat]

You gotta inspect them, see it anything is out of ordinary.

A call to UGS by example.

You might, or might not be able to find something.

I am really able to find issue this way.

[haughty zephyr]

Oh, so I can see the last task was a UGS script Start function

[steady moat]

But sometimes, you see something obvious

[steady moat]

Yeah

[haughty zephyr]

Would potentially point at it hanging executing that?

No way.

[steady moat]

Try to see on what it is waiting.

Double click on void<LoadPlayerData>

You might be able to see

Anyway, it hangs on the loading of data.

Thus, you definitly have not correctly setup UGS.

[haughty zephyr]

I'm digging, I think it may just be code structure issues. Trying to resolve.

[haughty zephyr]

Yessss! Resolved, thank you.

I don't know if this is normal form, but following tutorials for integrations of UGS Remote Config & Cloud Save required that the player was signed into UGS Authentication.

So there was while loops in the Start functions, awaiting for the signing in to finish while (!AuthenticationService.Instance.IsSignedIn)

The thread were locking up in those functions, so I moved the loops to a seperate function and called them - code flowed and scene plays as expected.

As an example, this async await also seems to be hanging my project.

[pulsar arch]

guys, lets say i would want to generate the outlines of a cube shaped grid. How would I do that?

[knotty sun]

LineRenderer

[pulsar arch]

ty

[desert wind]

For my script, I'm trying to make it so that once the player steps on a "SafeZone" a place where they can change their character, it updates a Ui sprite showing what character they are. The variable currentCharacter doesn't seem to be updating even when the "Player" is colliding with the "SafeZone". Here is the code.
https://paste.ofcode.org/63uE92nHJKKHYcxgmn6SwV

part of it might be that I'm using GameObject.Find and gameObject.CompareTag, the reason this is here is becuase my player objects are all prefabs and can not be referenced through the inspector window, another issue might be that referencing a collision of two seperate gameobjects unrelated to the UI Sprite might be causing an issue, or at least that's as far as I can understand it

[unreal sigil]

I have an idea for a game, when a door closes stuff change. How can i disable / enable an object visibility when closing the door?

[primal violet]

uhh i have a problem with unity or a bug

[leaden ice]

do not crosspost

[unreal sigil]

k

[random oak]

aren't these both event ?
what is the difference ?

public event Action MyAction
vs
public Action MyAction

I know Action is a delegate but what would be the difference here aside from 1 of them shows the lighting bolt on it ?

[delicate zinc]

just for the sake of answering how i did it in case anyone else ends up on a similar situation.

if(awarenessAngle < 360f)
{
    var potentialTargetPos = potentialTargetTransform.position.normalized;
    potentialTargetPos .y = 0;
    var bodyAimForward = aiBody.AimOriginTransform.forward;
    bodyAimForward.y = 0;

    var max = awarenessAngle / 2;
    var min = -max;
    var angle = Vector3.SignedAngle(potentialTargetPos , bodyAimForward, Vector3.up);
                    
    //Hurtbox is not inside vision cone, continue to next candidate
    if(!(angle > min && angle < max))
    {
        continue;
    }
}```

[stable osprey]

main difference is that an event may only be invoked by the class that declares it, while non-event delegates may be invoked from any object with access to that var

under the hood there are way more changes, e.g.: how the compiler treats those fields, and what is accessible via reflection

also, for events there're two special keywords: public event Action MyEvent { add => ..; remove => ..; } -- and cannot do 'get; set;'

[random oak]

Oh ok that make sense, thanks!

[summer jay]

https://gyazo.com/e1f2c054774e57b1fbb80516405b3084
here is a video better showing my issue
at first when i try hover over the brown box nothing happens when it should be triggering my OnMouseOver
however for what ever reason if i turn isTrigger on and then off it seems to work
which dosnt make any sense to me

[dapper whale]

Hi Nebby, I saw your post and thought I'd share my idea of what should also work. I haven't tested it though.

bool IsTargetInAwarenessCone(Transform target, float coneAngle)
{
    return IsTargetInAwarenessCone(target, coneAngle, transform.forward);
}

bool IsTargetInAwarenessCone(Transform target, float coneAngle, Vector3 coneCenter)
{
    var selfToTarget = (target.position - transform.position).normalized;
    return (Vector3.Dot(selfToTarget, coneCenter.normalized) >= Mathf.Cos(coneAngle * Mathf.PI / 180f));
}

[scenic thicket]

Hi, I have a problem: when creating a property drawer, I have a property that shouldn't be drawn but for some reason it's still drawn.
So the question is: is a list considered a property that can be not drawn??

public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
if (ShowMe(property))
{
...
}
else if (drawIf.disablingType == DrawIfAttribute.DisablingType.ReadOnly)
{
...
}

    Debug.Log("Not drawn");
}

[leaden ice]

that log statement will run no matter what

[scenic thicket]

But the property is drawn only if the ShowMe() is true or the disablingType is Read only

the debug line is outside everything

so no code should be run

[leaden ice]

exactly so it will run always.

only if it's in an else will it run only when the others don't

[summer jay]

#archived-code-general message anyone have any ideas?

[leaden ice]

        if (ShowMe(property))
        {
            ...
        }
        else if (drawIf.disablingType == DrawIfAttribute.DisablingType.ReadOnly)
        {
            ...
        }
        else {
            // not drawn
        }```

[scenic thicket]

I just added it in the else statement but it still debugs

[leaden ice]

you'll have to show all your code and explain which property is being drawn that you don't want to be drawn

[scenic thicket]

Can I send it through pastebin?

[leaden ice]

you should yes

[scenic thicket]

https://pastebin.com/Bs3fwWwM

https://pastebin.com/1sJzppdT For the property attribute

[leaden ice]

DialogueManager.GetInstance() is returning null

presumably you don't have a DialogueManager in the scene or something along those lines

[scenic thicket]

Here the list is drawn always

public bool completionSetOtherQuestsAccessible;
[DrawIf("completionSetOtherQuestsAccessible", true)]
public List<string> questIDToSetAccessible = new List<string>();

[leaden ice]

you're showing little bits and snippets and not really fully explaining the issue exactly. It's also unclear what DrawIf is and how that works

it's hard to help only seeing little snippets

oh sorry i see the pastebins now

[scenic thicket]

i was about to say it

ping me if you find something wrong im going afk a sec

[leaden ice]

Tbh i'm not really sure, but instead of writing a custom DrawIf attribute I would recommend using NaughtyAttributes which definitely works
https://dbrizov.github.io/na-docs/attributes/meta_attributes/show_hide_if.html

[scenic thicket]

I saw it while I was researching but I still wanted to try something on my own

I'm not sure it worked with custom classes

[leaden ice]

of course it does

[scenic thicket]

guess i'll have to go that way

[earnest gazelle]

EditorApplication.wantsToQuit works when quitting editor not play mode
I want to show a dialogue box with yes/no button when the game is playing in the editor (play mode) and if they press play button in game window to close the game (editor), shows the dialogue box and if they press No button, don't quit play mode.

[soft shard]

You could create your own system - on a button click, show your dialogue, if yes is hit, all Application.Quit(), otherwise hide the dialogue, you could set it up with a callback if youd want, or just have your dialogue trigger with a function that accepts a System.Action as a param for what to do if "yes" is clicked

[earnest gazelle]

No, It is not my scenario

Play button in game window

I want sometimes it does not work

[soft shard]

Ah, you should be able to call EditorApplication.isPlaying = false when you click "yes" on your dialogue if its to exit play mode from the editor only, and not at runtime/in a build

[manic cipher]

Can someone please tell me how I screwed this up?
Whenever I press the S key (backwardMovement) it is setting to false instead of true. I keep looking this over and it looks good to me.

void HandleMovement()
    {
        bool isRunning = animator.GetBool(isRunningHash);
        bool isWalking = animator.GetBool(isWalkingHash);
        bool isWalkingBackwards = animator.GetBool(isWalkingBackwardsHash);

        if (!movementPressed && (isWalking || isWalkingBackwards))
        {
            animator.SetBool(isWalkingHash, false);
            animator.SetBool(isWalkingBackwardsHash, false);
        }

        if (movementPressed && !isWalking && !isWalkingBackwards)
        {
            if (currentMovement.y >= 0 && !backwardMovementPressed)
            {
                animator.SetBool(isWalkingHash, true);
            }
            else if (currentMovement.y >= 0 && backwardMovementPressed)
            {
                animator.SetBool(isWalkingBackwardsHash, true);
            }
        }

        if (movementPressed && runPressed && !isRunning && !backwardMovementPressed && !isWalkingBackwards)
        {
            animator.SetBool(isRunningHash, true);
        }

        if ((!movementPressed || !runPressed || backwardMovementPressed || isWalkingBackwards) && isRunning)
        {
            animator.SetBool(isRunningHash, false);
        }

        if (currentMovement.y > 0)
        {
            transform.Translate(transform.forward * moveSpeed * Time.deltaTime, Space.World);
        }
        else if (currentMovement.y < 0)
        {
            transform.Translate(-transform.forward * moveSpeed * Time.deltaTime, Space.World);
        }
        if (backwardMovementPressed && !isWalkingBackwards)
        {
            animator.SetBool(isWalkingBackwardsHash, true);
        }
        else if (!backwardMovementPressed && isWalkingBackwards)
        {
            animator.SetBool(isWalkingBackwardsHash, false);
        }
    }

And yes, the input has a value of -1

[ashen yoke]

use debugger

[manic cipher]

No idea as to how debugger works, which is why I posted this here in case anyone could spot something simple, but I guess I will figure out debugger.

[ashen yoke]

https://github.com/pointcache/tips/wiki/Visual-Studio-Debugger

[regal marsh]

hey where should I go if i want wwise help? they don't have a discord

[manic cipher]

thanks 😄

[scenic thicket]

I have an update on my question. The attribute works perfectly with custom classes and normal atributes like int, floats, strings

Apparently the problem is with Lists and Array

[ashen yoke]

there is no usable drawer for lists afaik

always had to make them yourself

[scenic thicket]

what if dont want to draw them

(which is the attribute use)

[scenic thicket]

So lists are always drawn no matter what?

[ashen yoke]

doubt it, i just cant dedicate mental resources to simulating your code atm sorry

[languid hound]

Wait just quickly if I have a static variable and I assign it at some point, does creating another instance also carry the value of that variable over?

I'm trying to understand singletons

I know how to do them but just why

[hasty haven]

Static variables only have one instance and the value is shared between classes

[languid hound]

Ah right that makes a lot of sense now

[hasty haven]

If you took a generic enemy script and made their current HP a static value, hurting one enemy would hurt every one of them

A practical use would be for easily referencing something like in my game, the settings menu object

[languid hound]

Yeah static now that I've had it be said simply makes so much more sense

Seems really useful definitely going to be using it

[hasty haven]

If you want to do that to a class you can make a static member referencing the same class, then on Awake() you can do reference = this

Look up singleton patterns in unity there’s a ton of examples and use cases

You might want to destroy any copies of that class in Awake

[languid hound]

Yeah I've done so already was just curious what the point in them was when say I could make a DDOL GameObject with a script on it

[ashen yoke]

every class has a static version, a static class is also an instance class, but you are not allowed to manage it, the .net is managing it for you, and allows you to access it through static members, so it is by itself already a singleton in its purest form

[desert wind]

For my script, I'm trying to make it so that once the player steps on a "SafeZone" a place where they can change their character, it updates a Ui sprite showing what character they are. The variable currentCharacter doesn't seem to be updating even when the "Player" is colliding with the "SafeZone". Here is the code.
https://paste.ofcode.org/63uE92nHJKKHYcxgmn6SwV

Does this have something to do with how I'm referencing the collision of two seperate gameobjects?

[hasty haven]

In my case I dont expose the static reference as public, I just expose methods like

  public static bool IsOpen() {
    return instance != null ? instance.isOpen : false;
  }

So i can use SettingsMenu.IsOpen() to see if the menu is open or something, disabling player movement input while the menu is open.

[languid hound]

That makes way more sense tbh

[ashen yoke]

that also leads to bigger refactor time later

[jade phoenix]

i have two cubes perfectly lined up together and for some reason when the player rolls over them, the collision normal isn't (0, 1, 0). anyone know why?

even when theyre on the same y level?

[ashen yoke]

how do you get the collision?

rbs generates a bunch of collision points for each collision

those can be all over the place, inside the collider, on the surface etc

[jade phoenix]

    // Player Knockback
    private void OnCollisionStay(Collision collision)
    {
        Vector3 normal = collision.contacts[0].normal;
        Transform transform = collision.gameObject.transform;
        if (
            (collision.gameObject.tag == "ground" && normal != transform.up)
            || collision.gameObject.tag == "enemy"
            )
        {
            Debug.Log(normal);
            //Debug.Log("c1:" + (collision.gameObject.tag == "ground") + ", c2: " + (normal != transform.up) + ", c3: " + (collision.gameObject.tag == "enemy"));
            rb.AddForce(normal * pooshAmount, ForceMode.Impulse);
        }
        
    }```

[ashen yoke]

yeah check how many contacts there are in that array

use debugger

that tutorial doesnt seem to use rb contact points at all

oh im wrong there is

[jade phoenix]

im not trying to snap the player to the ground though i just use a tilemap for grounds so a 3x3 of evenly hieghtened cubes should really act like 1 surface

[ashen yoke]

there is no "single contact" point

you have to extract the information relevant to you from a set of generated contacts

like in the screenshot above

[jade phoenix]

oh so like

[ashen yoke]

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

use this

[jade phoenix]

theres a point in time where im colliding with 2 different objects at once so i can check the y value of the player within a threshold

yeh?

[ashen yoke]

even 1 object generates multiple collision points

[jade phoenix]

but my issue is only triggered by rolling over the 2 not when the ball is only on 1

[ashen yoke]

use physics debugger

it will show you precisely where the contacts are

so you can visualize what is going on

[jade phoenix]

its a marble game

the player is a sphere

and im trying to make it so the player knocks back on the sides of walls (anything that isnt transform.up)

[dim crypt]

In WebGL builds, i've tested by creating builds in unity 2019, 2020, 2021 and 2022 of just a new project with the sample scene, Everything loads fine when i host the builds on itch.io but when i try to host the builds on the server at the company where i work the build just hangs past unity 2019. Unity 2019 and earlier work fine but 2020, 2021 and 2022 get stuck like you see in the screenshot there.

Can anyone think why this might be the case that WebGl doesn't seem to work so well anymore after 2019?

[latent latch]

If you're doing any async loading there could be issues

just from previous experience pre-loading a bunch of data

Open the dev window on your browser and see if it's throwing any errors

[hollow hound]

Is GetComponent from gameobject is noticeably faster than .gameObject from component?

[leaden ice]

no

it's almost definitely slower actually, but definitely not noticeably in either direction

[hollow hound]

So it is faster to targetGO.GetComponent<MyComponent> than myComponent.gameObject?

[somber nacelle]

you almost never need a GameObject type variable, it's typically better to reference the component rather than the gameobject in nearly all cases and just get the gameobject from the component if you need to access it for whatever reason

[hasty haven]

Trying to think,
so would the worst case of a 16x16x16 chunk mesh where only exposed faces are rendered be this?

I'm trying to reduce garbage collection so I would want the chunk to have a vertex array probably to fit this

[leaden ice]

that's completely the opposite of what I said

[hollow hound]

Oh, right

[leaden ice]

Your original question was "Is GetComponent noticeably faster than .gameObject"
I responded: "no it's slower"

they're both fast enough that you usually don't need to worry about them from a performance perspective. I'd just argue GetComponent is ugly and less readable than using .gameObject on the rare occasions you actually need a GO reference

code readability is the bigger issue

Yeah I'm comparing go.GetComponent<Rigidbody>() with myRb.gameObject though which is a different subject

[hollow hound]

So is it reasonable to create dictionary with a GameObject as a key and component as a value instead just list of components to cut additional GetComponent that will be called a few times every frame at maximum?

[leaden ice]

no

completely not reasonable

As I said before:

they're both fast enough that you usually don't need to worry about them from a performance perspective.

[leaden ice]

if you are calling GetComponent a few times every frame you're doing it wrong

call it once and save the reference in a variable

or better yet - don't have a damn GameObject reference in the first place

[hollow hound]

I have list of rigidbodies and I need to remove the ones that was destroyed. My onDestroy event passes gameObject, so if I store only rigidbpdies, I'll need to destriyedObject.GetComponent<RigidBody>() every time I need to remove rb from list.

[leaden ice]

My onDestroy event passes gameObject
Make it pass a Rigidbody instead

[hollow hound]

This was a component that can be on objects without rb, seems not very convinient to have different ones.

[leaden ice]

then use GetComponent here - not a problem. How many of these things are actually happening anyway

I fear you may be trying to prematurely optimize

are you actually seeing a performance issue here?

Have you profiled the game and saw "oh my GetComponent is really killing me here"

[hollow hound]

Yes. I have modifier that controls movement, it stores all active projectiles and apply some force to them.

[hollow hound]

No, just asking how it is usually done 🙃

[leaden ice]

it sounds reasonable to use GetComponent here - though if OnDestroy event is happening for objects that don't have Rigidbodies I would be using TryGetComponent

[hollow hound]

Doesn't GetComponent just return null if there is no such component?

[leaden ice]

yes which is uglier than using TryGetComponent

[dim crypt]

Thanks will take a look

[leaden ice]

if (obj.TryGetComponent(out Rigidbody rb)) {
  allBodies.Remove(rb);
}```
is cleaner than:
```cs
Rigidbody rb = obj.GetComponent<Rigidbody>();
if (rb != null) {
  allBodies.Remove(rb);
}``` @hollow hound

[hollow hound]

Thanks

[narrow summit]

Anybody familiar with this? Works on Editor. Breaks on WebGL.
var count = fileStream.Read(bytes, sumLoaded, readSize);

[hollow hound]

I am doing getComponent when projectile is created and adding rigidbody to list. I am also subscribing to onDestroy event of gameObject. Then in update I am apllying force to projectiles. And in HandleDestroy (which passes gameObject) I want to remove rigidbody from list. And if i'm not using dictionary here, I'll need to destroyedGO.TryGetComponent every time it destroys. Which can be ok from the performance side, but I'm not sure so asking this. 🙂

[leaden ice]

it's fine

you will get a much better performance improvement by swtiching from a List<Rigidbody> to a HashSet<Rigidbody>

You also should only be adding forces in FixedUpdate not Update

[hollow hound]

Thanks

[late ivy]

Hey sorry this might be a simple question but I'm not sure how I should make it so that an object moves indefinitely in the forward direction during runtime (aka along the blue line in the editor)

while being affected by its rotation

[desert wind]

I've had a few problems coding a script. Basically, the player has the ability to change character, and I want a Ui sprite to update once that player switches character. I've changed the script a few times but currently it only seems to update the sprite to that of the first character, and doesn't change to the second or third. My question is why doesn't the script update currentcharacter for the second and third else if condition?
https://paste.ofcode.org/EtdCvDqFbLkyFHDJpVqkxn

Also the UI sprite has its own script that takes the currentCharacter of this script and makes it its own, in case that helps explain it

[soft shard]

transform.forward will refer to the local z of the object (unless changed), you could add that value, multiplied by some speed to the current position, if it needs to also respect physics, you could add that as a velocity instead of setting the transform posittion

[late ivy]

oh i didn't know i could just add transform.forward to a position directly
thanks a lot
here's the line if anybody's interested

transform.localPosition += transform.forward * speed * Time.deltaTime;

[soft shard]

I would maybe use an event so you can separate your logic a bit more, for example:

public class CharChanger : Mono
{
public static Action onNextChar;
int next;

void Update()
{
if(someInput) {next++; onNextChar?.Invoke(next);} //however you want to handle "changing characters"
}
}

public class CharViewer : Mono
{
public Image display;
public List<Sprite> chars;

void OnEnable() { CharChanger.onNextChar += NextChar; }
void OnDisable() { CharChanger.onNextChar -= NextChar; }
void NextChar(int index) { display = chars[index]; }
}

Not verbatim code, though in this case, the "changer" is your player logic or whatever handles switching characters, that fires the event - the "viewer" listens for that event and updates UI in response - there are many ways you could improve that kind of implementation (you could wrap the index or modulate it so its never less/greater than your sprites, you could store the sprites in a ScriptableObject and use that instead of a index, etc)

[short walrus]

Hi, i have a rotation problem.

i have a 2D tank that can move and rotate itself, and a turret child object which I want to have a specific FOV angle it can turn towards in relation to the parent object.

i tried too many methods and none seemed to work, i still struggle to comprehend all rotation types properly and maybe thats why.

I tried sharing code here, but discord's Clyde said it couldnt be delivered 😠 . I guess discord doesnt like me sharing code.
Not blaming this server btw. So i'll try to give the code in parts.

Dictionary:

front_mg_target = game object that is defined properly elsewhere.
front_mg_weap_obj = our mg turret object
Various coroutine variables are defined elsewhere.
flaot front_mg_rotate_speed is defined.

            // called in Update()
        private void FrontMGAimLogic()
        {
            if (front_mg_target != null)
            {
                if (Vector3.Distance(front_mg_target.transform.position, front_mg_weap_obj.transform.position) < range)
                {
                    if (resetFrontMGCoroutine != null)
                    {
                        StopCoroutine(resetFrontMGCoroutine);
                        resetFrontMGCoroutine = null;
                    }
                    Vector3 directionToEnemy = front_mg_target.transform.position - front_mg_weap_obj.transform.position;
                    Quaternion targetRotation = Quaternion.LookRotation(Vector3.forward, directionToEnemy) * Quaternion.Euler(0f, 0f, 0f);
                    if (rotateFrontMGCoroutine != null)
                    {
                        StopCoroutine(rotateFrontMGCoroutine);
                        rotateFrontMGCoroutine = null;
                    }
                    rotateFrontMGCoroutine = StartCoroutine(RotateFrontMG(targetRotation));
                }
                else
                {
                    if (resetFrontMGCoroutine == null)
                        resetFrontMGCoroutine = StartCoroutine(ResetFrontMGRotation());
                }
            }
            else
            {
                if (resetFrontMGCoroutine == null)
                    resetFrontMGCoroutine = StartCoroutine(ResetFrontMGRotation());
            }
        }```

        private IEnumerator RotateFrontMG(Quaternion targetRotation)
        {
            while (front_mg_weap_obj.transform.rotation != targetRotation)
            {
                front_mg_weap_obj.transform.rotation = Quaternion.RotateTowards(front_mg_weap_obj.transform.rotation, targetRotation, front_mg_rotate_speed * Time.deltaTime);
                yield return null;
            }
        }

        private IEnumerator ResetFrontMGRotation()
        {
            yield return new WaitForSeconds(3f);
            Vector3 directionToEnemy = tank_mg_base_lid.transform.position - front_mg_weap_obj.transform.position;
            Quaternion targetRotation = Quaternion.LookRotation(Vector3.forward, directionToEnemy) * Quaternion.Euler(0f, 0f, 0f);
            while (front_mg_weap_obj.transform.rotation != targetRotation)
            {
                front_mg_weap_obj.transform.rotation = Quaternion.RotateTowards(front_mg_weap_obj.transform.rotation, targetRotation, front_mg_rotate_speed * Time.deltaTime);
                yield return null;
            }
            resetFrontMGCoroutine = null;
        }
    ```

That's all, please ping me if you have anything

[subtle scroll]

{

    [Header("Layers")]
    public LayerMask groundLayer;

    [Space]

    public bool onGround;
    public bool onWall;
    public bool onRightWall;
    public bool onLeftWall;
    public int wallSide;

    [Space]

    [Header("Collision")]

    public float collisionRadius = 0.25f;
    public Vector2 bottomOffset, rightOffset, leftOffset;
    private Color debugCollisionColor = Color.red;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        onGround = Physics2D.OverlapCircle((Vector2)transform.position + bottomOffset, collisionRadius, groundLayer);
        onWall = Physics2D.OverlapCircle((Vector2)transform.position + rightOffset, collisionRadius, groundLayer)
            || Physics2D.OverlapCircle((Vector2)transform.position + leftOffset, collisionRadius, groundLayer);

        onRightWall = Physics2D.OverlapCircle((Vector2)transform.position + rightOffset, collisionRadius, groundLayer);
        onLeftWall = Physics2D.OverlapCircle((Vector2)transform.position + leftOffset, collisionRadius, groundLayer);

        wallSide = onRightWall ? -1 : 1;
    }

    void OnDrawGizmos()
    {
        Gizmos.color = Color.red;

        var positions = new Vector2[] { bottomOffset, rightOffset, leftOffset };

        Gizmos.DrawWireSphere((Vector2)transform.position + bottomOffset, collisionRadius);
        Gizmos.DrawWireSphere((Vector2)transform.position + rightOffset, collisionRadius);
        Gizmos.DrawWireSphere((Vector2)transform.position + leftOffset, collisionRadius);
    }
}```

How can i do this type of gizmos but with squares so it fills the bottom side and the same with the sides? since my player is a square and the circle doesnt fit all the way to the sides/bottom

[earnest gazelle]

No, It does not work. I have tested it before.

It freezes the game (play mode)

[soft shard]

You sure? I just tested this code, and 3 seconds later, it automatically exits play mode, if its freezing, maybe something else is going on:

    void Start()
    {
        Invoke(nameof(Test), 3f);
    }

    void Test()
    {
        EditorApplication.isPlaying = false;
    }

[haughty zephyr]

Any ideas on how I select an environement (dev, prod) in UGS Cloud Save?
I've managed it for Remote Config, but can't find the function in their manuals.

[torn eagle]

Need some help!

I'm using this script for a drawing mechanic, however, the colour only changes if I set it like this

        {
            BrushColor = Color.green;
        }```

I want to set it via a colour picker in the inspector but when it is set that way it seemingly ignores the colour in preference of one set via Color.green, Color.red, etc.

This is how BrushColor is set 
```public Color BrushColor = Color.black;```

The debug on this script outputs an RGB value but doesn't actually change the colour
```    public Paint brush;
    public Color color;

    public void ChangeColour()
    {
        brush.BrushColor = color;
        Debug.Log("Colour set to" + color);
    }```

Here is an example of how I have set up a use of the ChangeColour() mechanic

[lean sail]

is the RGB value correct from what you chose in the inspector? because this function doesnt take any parameters so im unsure where color even would get its value from

is there anymore code to this?

[torn eagle]

There's the entire painting code but not sure if it's relevant

[lean sail]

it just seems like this function just needs to take in the color to actually change it to then

[torn eagle]

The "color" variable that is used in ChangeColour() is set in the inspector

[lean sail]

oh damn i missed that part

[torn eagle]

All good!

[lean sail]

for public Paint brush;, are you assigning using that reference to actually draw as well?

i think you might be changing the color on another instance of the class

[quartz folio]

Also, are you setting BrushColor elsewhere?

[torn eagle]

I don't believe I am?

[tawny mountain]

Can someone tell me how , when using netcode for gameobjects , I can spawn a player object for both host and client when its bult for standalone but for android only the host spawns a player object not the client

[torn eagle]

The Paint script is what I use to set up the painting mechanic

[quartz folio]

#archived-networking

[tawny mountain]

#archived-code-general

[torn eagle]

Weird thing is that it shows up with the changed colour in the inspector for the Paint script but doesn't actually "draw" with that colour

[quartz folio]

Then surely those are two different things

if it's changing in the inspector then the code is working fine

[torn eagle]

This is the actual painting code

    private void DrawOnTexture(Vector2 localMousePosition)
    {
        float u = (localMousePosition.x + rectTransform.rect.width / 2) / rectTransform.rect.width;
        float v = (localMousePosition.y + rectTransform.rect.height / 2) / rectTransform.rect.height;

        Vector2Int currentPixelUV = new Vector2Int((int)(u * texture.width), (int)(v * texture.height));
        Vector2Int previousPixelUV = new Vector2Int((int)(previousMousePosition.x + rectTransform.rect.width / 2),
                                                    (int)(previousMousePosition.y + rectTransform.rect.height / 2));

        // Calculate the brush size in pixels
        int brushSizePixels = Mathf.RoundToInt(BrushSize * texture.width / rectTransform.rect.width);

        for (int x = currentPixelUV.x - brushSizePixels / 2; x < currentPixelUV.x + brushSizePixels / 2; x++)
        {
            for (int y = currentPixelUV.y - brushSizePixels / 2; y < currentPixelUV.y + brushSizePixels / 2; y++)
            {
                if (x >= 0 && x < TextureWidth && y >= 0 && y < TextureHeight)
                {
                    float normalizedDistance = Vector2.Distance(new Vector2(x, y), currentPixelUV) / (brushSizePixels / 2f);
                    float brushIntensity = Mathf.Clamp01(1f - normalizedDistance);
                    Color currentColor = texture.GetPixel(x, y);
                    Color blendedColor = Color.Lerp(currentColor, BrushColor, brushIntensity);
                    texture.SetPixel(x, y, blendedColor);
                }
            }
        }

        previousMousePosition = localMousePosition;
        texture.Apply();
    }```

[lean sail]

Id suggest making a property/setter function so you can debug what the old and new value of BrushColor is. Maybe it is setting on a separate instance then

[torn eagle]

Alright it's definitely not setting correctly then since it only debugs when I use the Color.green method not the custom inspector one

The colour set is showing the correct values in the inspector but the RGBA (what's actually being drawn) is clearly not the same

Another weird thing i found is that the colour picked drawing actually works when I have a buffer zone where the drawing is meant to be "disabled"

[bright heron]

is there a way to have two camera follow the same movement but only having one active at a time?

[torn eagle]

Do you want to be able to toggle between them?

[bright heron]

yeah so i'm doing a game where the character transforms into 2 different modes so i have two cinemachine cameras set up

[pure cliff]

Im sitting here staring at this debug output and I cannot for the life of me see why my continue didnt get hit, am I tired or does this logic check out, and I should 100% be hitting that continue? Or is this some kind of weirdness with comparing Vector2s?

oh damnit nevermind now I see it, third part is supposed to be .Contains(neighbour) not to fml lol

[cosmic rain]

Though I'd be careful with comparing vectors like that. If they don't have decimal part, might be wiser to use Vector2Int.

[pure cliff]

oh wow I didnt know that existed, aight, I might need to do a refactor using that everywhere

only tricky part is I do have areas of my code that I need to not be hard locked to int positions (namely, when moving from posA to posB)

[ashen yoke]

thats probably out of the scope of the graph

also i would avoid using ToList