archived-code-general

[steady moat]

No, with vector

Raycast if you want to block sight with obstacles though

[safe ore]

Yeah I don't want the ai to see through walls

[steady moat]

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

[safe ore]

so use ray casts, would that not be performace heavy as well?

[steady moat]

It sure has a considerable impact.

You would need both anyway.

You need to compare the angle between the transform.forward of the enemies and the vector form by the player and the enemies

If the angle is lower than a threshold, then it is visible.

[safe ore]

alright i get you

[rain minnow]

This is normal, using raycasts is fine. You can even use a check to limit how often you update the check . . .

[dense tusk]

oy lads. i have an object that basically acts as a button, and i wanted to know what might be a good method to make it so the button can do multiple things, such as unlocking a specific door, spawning an item, resetting something, etc. i reckon i could do this by just duplicating the object and making several scripts for unique cases, but i don't think that's very efficient

[rigid island]

UnityEvent

 public UnityEvent StuffToDo;
    public void ButtonPressed()
    {
        StuffToDo?.Invoke();
    }```
make a prefab out of button, you can then assign each button a different method or multiple ones in inspector for field StuffToDo.

[wind bobcat]

Can anybody think of why my playercontroller wouldn't be working when I build the game, but would be working in the editor?

[heady iris]

Do any of your inputs work?

[wind bobcat]

In the editor they do

[green anvil]

What would i need the value of

[heady iris]

In the built game, I mean

[wind bobcat]

Nope, but I think I'm figuring it out

[heady iris]

I would use OnGUI() to display input values

[wind bobcat]

I believe it has to do with the script execution order

I'm getting a null reference in the built version while the editor doens't have that

[heady iris]

ah

try restarting your editor. that can reveal execution order problems

the order of objects will be different

I've caught a few issues after doing that

(loading a different scene might be enough)

[wind bobcat]

I might try that, but I think I have it fixed

[heady iris]

I was just thinking about that today, actually

It would be nice if you could scramble objects to try and suss out that kind of problem

[wind bobcat]

Got it working 🙂

thx for the help

[spring creek]

I would look specifically at the innermost if statement:
if (__instance.gameObject.GetComponent<BoxCollider2D>().IsTouchingLayers(owp))

Is it returning the box collider actually? is the IsTouchingLayers call returning true? Is owp what you thought it was?

Is it even the gameObject you thought it was?

Btw, why not just do if (box.IsTouchingLayers(owp)) since you cached the box collider right before this?
I'm thinking the IsTouchingLayers call is the issue, since you DID cached the box collider and used it already without a nullrefexception

Also, I'm confused by this:

box.transform.position += new Vector3(0, 0.2f, 0);
//...
__instance.transform.position -= new Vector3(0, 99, 0);

Since box is the BoxCollider of __instance, you are modifying the same exact transform on both of those lines. You are telling it to go up .2, and down 99.
But if I understand you right, NEITHER of those things are happening?

Wait, as I look more, I keep getting confused.
You have this:

foreach (var obj in Resources.FindObjectsOfTypeAll<GameObject>())
{
    int owp = LayerMask.NameToLayer("OneWayPlatform");
    if (obj.layer == owp)
    {

where you find EVERY GameObject in the game, then set owp to OneWayPlatform over and over again for each one, then check if the gameobject is on that layer?
Why not just have a component on the platform and do FindObjectsOfType

Or better yet, have a list of the OneWayPlatforms and iterate that

Or EVEN better yet, use a raycast to just see what the player is standing on instead of iterating anything

[umbral agate]

Respected,
I want to move the gameobject forward and slightly upward too and rotate slightly in the local y-axis (with rigidbody add force)...
when user finger swipe up the screen.. please guide

[low summit]

hey yall i got a question

im currently working on a vr game and i want to obscure the players view when they start the level

the way the people before me did this is that they have a giant gameobject thats black and they change the alpha of the gameobject to make it not transparent

this works but there are a few things that don't get blocked out by the gameobject and im struggling to figure out why it doesn't

anything that emits some kind of light shines thru it

is there a different way I can implement this?

then when its transparent things start showing thru the block

whyyyyy

i turn the alpha to 0 and u can see things but theyre all blocked by the thing

except for that stupid ass plant over there

[lean sail]

its really hard to see whats specifically showing through in a small screenshot of a camera preview. maybe you can use something on a canvas to restrict view instead of a giant object

[low summit]

u can see the lil green spec srry for the bad sc

[lean sail]

stuff shouldnt still show through your object if its alpha is set to the max, unless the geometry is kinda weird

[low summit]

i messed around with the way its rendered

setting render queue to alpha test makes it not show up

[low summit]

canvas?

[lean sail]

like a UI object

[low summit]

pretty sure the object is on a canvas

the black fading block is what im talking abt btw

[lean sail]

ah when you said giant i assumed it was not on the canvas

[low summit]

is it like

a layering issue?

omgomgomg

i iddi

it

[low summit]

thank you bro

clutch af

[lean sail]

im unsure how i helped but 🙏 glad its fixed

[low summit]

I forgot that it was attached to a canvas

the camera wasn't attached to it

and it was on the wrong layer

[waxen burrow]

is there a way to select serialized scripts from a wrapper class? I am making an inventory system, and currently I have a serialized class Item that has an instance decleared in a mono attached to a game object. Obviously I want to have different types of items all with different stats, animations etc... Would there be a way to choose which serialized class you want to wrap onto the G.O. (choosing between children of the item class), or would I have to make wrappers for each child?

[somber nebula]

I don't know too much about ScriptableObjects so this might be a dumb question, but I have one for "Dimensions", some are presets, but I'm planning on having procedurally generated dimensions. Would it be a bad idea to generate ScriptableObjects for each new procedural dimension, or should I stick to keeping those for presets only?

[latent latch]

What's the use case here? Are you generating them at editor time and insterting exact data into the gui, or is this some runtime generation?

[somber nebula]

Runtime

[latent latch]

Well, you can write to scriptable objects, but you can also just use plain c# classes in this case

[obtuse flame]

Is there a way to get the face normal of a collider? I have a position close to the collider and im using collider.ClosestPointOnBounds(position) to get the closest point, but is there a way for me to also get the normal of the face where this point is?

[lean sail]

not entirely sure if theres a built in for this, maybe you could raycast towards that point and use hit.normal from the raycast

[obtuse flame]

so something like this u mean?

            Vector3 direction = closestPoint.Value - position;
            
            RaycastHit hit;
            Physics.Raycast(position, direction.normalized, out hit, Mathf.Infinity, 1 << 0);
            
            PaintDecal(closestPoint.Value, hit.normal, closestCollider);

This seemed to work although there are some scenarios when the direction is 0 which doesn't really work

[swift falcon]

Hey I wrote
"public List<List<Job>> data;"
to contain jobs for a 2d grid and to itterate through it, I was told I can simplify it using
"foreach (Job job in data.SelectMany(jobList => jobList))"

I don't understand the parameters of SelectMany... I don't understand why I write "jobList" twice

Can someone maybe help me understand it? It seems a bit weird to just write it twice, especially when I don't appear to use that variable anywhere else

[mellow sigil]

It's a lambda expression that just tells SelectMany to use the list as is without modifications

[swift falcon]

I think I kinda get it? Thanks

[lean sail]

maybe you'll want this since it says

Casts a Ray that ignores all Colliders except this one
https://docs.unity3d.com/ScriptReference/Collider.Raycast.html
to ensure it hits the correct thing

[obtuse flame]

ah yeah, i'll try that ty

[void stratus]

how can i repeat an action X amount of times every X seconds

like if i want it to be repeated 3 times with a 2 seconds break between each time

[west lotus]

I suggest you use this timer lib https://github.com/akbiggs/UnityTimer

[void stratus]

ty

[pure mortar]

i need a little help

in some scripts

[west lotus]

https://dontasktoask.com/

[pure mortar]

hm is this a serious site ?

i can ask here or ?

[thin aurora]

The point is that you just specify the actual question, providing reasonable context to allow us to help you. You don't ask for the actual help, because people are not going to answer that.

#854851968446365696 -> 🤔 Asking Questions

[golden siren]

can someone tell me why my tilemap is messed up, i cant figure out.

[thin aurora]

Please use the right channel for your question. This is a coding channel. #🔎┃find-a-channel

[dusky pelican]

Hello, when i try to create an array its just creates random count for array

[knotty sun]

because you are not CREATING an array with that statement you are just DECLARING it

[thin aurora]

You can modify what the editor specifies in terms of size and what it contains. The editor is eventually the part that creates an instance of the array.

[dusky pelican]

Ah thanks i dont know very well

[dusky pelican]

But why the purpose of randomness?

[thin aurora]

Idk

I have never seen it being random

[thin aurora]

🤷‍♂️ Just change it

[knotty sun]

normally when you declare an array or list without creating it the inspector will chose a length it has formerly used

[thin aurora]

Unless you have an attribute above it I could not think of a reason

[dusky pelican]

Okay thank you so much guys. If it wont be a problem for me in future i will make it

[bleak abyss]

I'm trying to control a ball using torque
but the ball is going in random directions

[leaden ice]

Torque is expecting a set of euler angles.

You're passing in direction vectors

Basically you're passing in random nonsense

[cursive moth]

Hi, I have this struct:

[Serializable]
public struct PlaceableItem
{
    public ItemSO ItemSO;
    public int ItemCount;
    public Action<int> OnCountChanged;
    public int MaxItems;
    [Tooltip("Amount the item should move for when switching planets")]
    public float HideOffset;
    public NashSet<GameObject> PlacedItems = new NashSet<GameObject>();
}

It works good but the new NashSet<GameObject>(); is giving me an error because you can't initialise things that way when using a struct.
I need it to exist because I need to access it's count and other properties and having to do an if check and assign a new value to it every time I wanna access the property is painful.
Is there anything I can do about this?

[thick terrace]

not really, this is just how structs work! you'd need to make it a class if you want to do anything other than zero initialization

[cursive moth]

I see, the reason I went with a struct is that it's easier to serialize it in the inspector.
Is there a way to achieve this with a List<PlaceableItem> which are a class as well or would it require some custom inspector?

[thick terrace]

classes and structs are pretty interchangeable in unity's serialization system, minus a few caveats, what problems were you having?

[cursive moth]

iirc serializing a class will just give you a field to drag in an object w that script attached or sm similar(I might be wrong) while structs display all the values

let me re-check that

[thick terrace]

you get that if you make a class that extends ScriptableObject, but a plain C# class with [Serializable] works mostly the same as a struct

[cursive moth]

I see, so if it's inheriting from a MB or SO then it's displayed as a field and if you use a class without inheriting from unity things you get all the properties displayed in the inspector, thanks!

[thick terrace]

yup!

[leaden ice]

It's giving you an error because there's no such thing as a "NashSet"

"HashSet" is a thing though

[frail meteor]

Is it possbile to crate a SpeedTest method to check user speed from Unity?
I've done this simple script:

{
    private string url = "https://link.testfile.org/15MB";

    void Start()
    {
        StartCoroutine(DownloadAndMeasureSpeed(url));
    }

    IEnumerator DownloadAndMeasureSpeed(string url)
    {
        Debug.LogWarning("SpeedTest STARTED");

        UnityWebRequest request = UnityWebRequest.Get(url);

        float startTime = Time.time;
        yield return request.SendWebRequest();

        if (request.result == UnityWebRequest.Result.Success)
        {
            float downloadTime = Time.time - startTime;
            float fileSizeInBytes = request.downloadedBytes;
            float fileSizeInMB = fileSizeInBytes / (1024 * 1024);
            float downloadSpeedMBs = fileSizeInMB / downloadTime;
            float downloadSpeedMbs = downloadSpeedMBs * 8; // Convert from MB/s to Mb/s


            Debug.LogWarning("File size: " + fileSizeInMB + " MB");
            Debug.LogWarning("Download speed: " + downloadSpeedMBs + " MB/s");
            Debug.LogWarning("Download speed: " + downloadSpeedMbs + " Mb/s");
        }
        else
        {
            Debug.LogError("Error downloading file: " + request.error);
        }
    }
}```
the problem is that there is a significant discrepacy between this output on editor (15Mb/s), build (0.5Mb/s) and a google speedtest (50Mb/s). Does exists some better ways to do it? and could it be reliable in the first place?

[cursive moth]

I made nashset, it's basically a hashset that has an OnCountChanged event

[primal wind]

Then make sure it's accessible (no errors, correct namespace if you have one)

[slate pulsar]

Hey, I am trying to make a procedural terrain generator, everything is fine other than the textures seem very blocky and low quality despite that the alphamap resolution is 4096 and the textures are 1024x1024.

Here is my code to generate textures:

private float[,,] GenerateTextures(int index, TerrainData data)
{
    Debug.LogFormat("Generating textures for island: {0}", index);

    var textures = TerrainSettings.TextureSettings.Textures;

    List<TerrainLayer> layers = new List<TerrainLayer>();
    for (int i = 0; i < textures.Count; i++)
    {
        layers.Add(new TerrainLayer()
        {
            name = textures[i].Texture,
            diffuseTexture = AssetManager.instance.FindTexture(textures[i].Texture),
            normalMapTexture = AssetManager.instance.FindTexture(textures[i].NormalTexture)
        });
    }
    data.terrainLayers = layers.ToArray();

    float[,,] map = new float[TerrainSettings.HeightMapResolution, TerrainSettings.HeightMapResolution, textures.Count];

    for (int x = 0; x < TerrainSettings.HeightMapResolution; x++)
    {
        for (int y = 0; y < TerrainSettings.HeightMapResolution; y++)
        {
            for (int z = 0; z < textures.Count; z++)
            {
                var texture = textures[z];
                var height = NoiseMap[index][x,y] * 100;

                bool valid = (height > texture.MinHeight && height < texture.MaxHeight) && (texture.BiomesToSpawnIn.Contains(BiomeMap[index]));
                map[x, y, z] = valid ? 1 : 0f;
            }
        }
    }

    data.SetAlphamaps(0, 0, map);
    return map;
}

[heady iris]

well, how big is the terrain?

Is the terrain is 1km x 1km, and your splatmap texture is 1024x1024, you get around 1 pixel per meter

If you want to have, say, ten pixels of blending between the grass and the sand over the span of one meter, then your terrain should be 100m x 100m

[slate pulsar]

Ah okay. Thanks.

[heady iris]

You can also try blurring the splatmaps

It looks like you're setting each one to one -- and only one -- layer

So you're always going to have hard edges

I dunno if there's any built-in way to do that, but you could just do a simple box blur

naïvely, you'd iterate over every cell and set the value to be the average of the surrounding 9 cells

but you could also just do a horizontal pass and a vertical pass to make it faster

but at that point, I'd probably be looking at using a compute shader. You could do a nice big blur on the GPU very quickly.

[delicate zinc]

i'm having an issue where float precision is shooting me in the foot, i have two nodes which i want to test if a character controller can reach the position (for AI navigation purposes).

however, this single 0.01 difference which i have no idea where its comming from is causing my comparasion to return false, which in result causes a link between the two positions to not be built

how can i fix this... presicion issue?

since its such a tiny value i was thinking about somehow removing such small presicion. but i dont know how i would do that

its quite annoying since it sees to be a specific issue with the mesh collider these tiles are using

[rigid island]

what kinda comparison

show

[delicate zinc]

because well, just using a regular box collider doesnt have the impresicion issue

[delicate zinc]

kk

 _mover.DestinationPosition = nodeBPosition;

                Physics.SyncTransforms();
                for (int j = 0; j < 5; j++)
                {
                    _mover.Move();
                }
                
                if (_mover.MoverFeetPosition != _mover.DestinationPosition)
                {
                    continue;
                }```

[rigid island]

are those vector3s

[delicate zinc]

yes

DestinationPosition and FeetPosition are vector3s

[rigid island]

hmm they use approximity behind the scenes so not sure it would be floating point imprecision

can't tell by this alone , would need to see more of the setup

[delicate zinc]

yeah, i am aware, as i said, the issue seems to be with a mesh collider that i'm using from the assetstore i have

or at least thats my hunch yknow

either that or an issue i'm facing with the character controller itself, i did make sure to account for the skin width of it

public Vector3 CapsuleHalfHeight => new Vector3(0, (_moverCharacterController.height / 2) + _moverCharacterController.skinWidth, 0);
public Vector3 StartPosition { get; set; }
public Vector3 DestinationPosition { get; set; }
public Vector3 MoverPosition => _transform.position;
public void SetMoverPosition(Vector3 value, bool shiftByCapsuleHalfHeight)
{
    value += shiftByCapsuleHalfHeight ? CapsuleHalfHeight : Vector3.zero;
    _transform.position = value;

}
public Vector3 MoverFeetPosition => MoverPosition - CapsuleHalfHeight;```

[spring creek]

The difference is in the y position. It is saying one of the positions is slightly above the ground. This is more than just floating point impricision

I usually check a distance for if it's close enough, so they don't try to circle something if blocked

[delicate zinc]

i guess i could actually check for distance instead

but yeah, i know the issue itself, its not exactly a difficult fix

what bothers me is that this is only happening on what i assume is a mesh collider

because on a simpler collider, such as a box collider, this doesnt happen

which just confuses me

but yeah i'll go ahead and just compare distances

better than staying all day trying to fix such miniscule issue

[spring creek]

Ah, you're deriving the feetPosition from a division and subtraction, I take it back, this COULD be impricision

Yeah I'm not sure the fix though, sorry

[delicate zinc]

its ok

the compare distance is better than nothing, so thanks regardless

[rigid island]

yeah this is a head scratch for me this early morn xD

[delicate zinc]

i've been reading that there's a... less expensive way of calculating distance instead of Vector3.Distance?

i know its not a default emthod in the class so i'd like to know the formula so i can use it during the AI Job

[rigid island]

wat like regular - ?

[delicate zinc]

nah, as in a float distance

[rigid island]

(a-b).magnitude

[delicate zinc]

guh

hm

[rigid island]

or is it SqrMagnitude ?

i forget

[delicate zinc]

i'm... positive magnitude just square roots the sqr magnitude value

then again, i'd better just use distance and worry about optimmization later

[nova leaf]

i apply rb.AddRelativeForce (500, 0, 0, ForceMode.Impulse); to an enemy, but the strength of the add force is depending on the frame rate, but i only call it once and not in update/fixed update, how can i fix that?

[spring creek]

You are right. When you are simply comparing magnitudes, you may as well use sqrMagnitude. It skips the single square root operation. It is a simple optimization that is very worth it when in a "hot path" (like evaluating distance every frame across a hundred units or something haha) but distance is fine for the player

[spring creek]

Impulse mode directly modifies the velocity value by the force (newtons/meter) divided by mass all at once. It is not affected by frame rate. So I'm not sure what is going on. Show more of the code?

[nova leaf]

nope it's affected by frame rate

i changed the frame rate in code and it changes how strong it is

[spring creek]

I mean.. it is not normally. So you are doing something else. It is how impulse mode works. It is not affected by frame rate.

How is normal movement handled?

[nova leaf]

it's a nav mesh agent

[spring creek]

Do you disable the agent before doing addforce?

[nova leaf]

no

i should, right?

[spring creek]

The navmesh agent will continue trying to affect position while addforce is going.

[spring creek]

Try it

[nova leaf]

but this has nothing to do with the force being different when changing the frame rate

[spring creek]

The issue still happens when you disable the agent?

This is a good chart

[nova leaf]

hmm i think yes, but it kinda breaks everything disabling it and idk how to code it so it reactivate when it finished moving after the add force

[spring creek]

Use a coroutine and a knockback time. Start coroutine, disable agent, addforce, yield wait, reenable agent.
You don't really need the full force to act, a time flying might even be better

[nova leaf]

yeah ok it works :)

i actually thought of that but i was like "surely that's not the best/most professional way to do this" xD

[floral coral]

is a delagate like a void* but for multiple functions?

[lean sail]

Its similar to a function pointer, doesnt have to be void, and can have multiple functions but that's a benefit, not a requirement

[hollow cosmos]

Will Camera.main always have the right camera in the context of OnMouseDown()?

[heady iris]

I wouldn't expect anything weird to happen.

[somber nacelle]

Camera.main is just the first camera that is found with the MainCamera tag. if you have multiple cameras in the scene with that tag, it will not change dynamically based on what camera is being used. it will still just be the first one found

[hollow cosmos]

I see. Do you know of a better way to know where a given collider was clicked?

It feels weird that OnMouseDown() doesn't provide that information when it definitely has it

(unless it does and I'm missing it somehow)

[somber nacelle]

use a raycast or the event system interfaces

[heady iris]

Did you try to do a raycast with Camera.main.ScreenPointToRay and have problems?

[hollow cosmos]

that doesn't avoid the issue of using Camera.main unfortunately

[hollow cosmos]

i would still need to do that through the camera likely

unity knows which camera it's using and it knows where im clicking but opts not to tell me

[somber nacelle]

you have not actually specified any issue with it yet

[hollow cosmos]

i dont want my code to break just because i change a tag on my camera

[somber nacelle]

how could unity know what camera you are using if you have more than one in the scene? you have to tell it which one you are using

[hollow cosmos]

thats the issue im trying to solve

[hollow cosmos]

it's providing me the hook, not the other way around

[somber nacelle]

what do you mean by that?

[hollow cosmos]

if it knows something was clicked, then it must know which camera it used to know that

unity should be telling me which camera was used to know that something is being clicked

[somber nacelle]

OnMouseDown doesn't provide any information.

[hollow cosmos]

hence my problem lol

[somber nacelle]

use a raycast or the event system intefaces

then you will have the information

[hollow cosmos]

could you walk me through how you would raycast?

itll highlight why that approach wouldn't solve my issue

[somber nacelle]

why don't you actually describe what it is you are actually trying to accomplish instead of making me play games to get any useful info out of you? what good would it do for me to explain how to raycast if that isn't even going to be a useful solution?
https://xyproblem.info

[hollow cosmos]

this doesn't feel like a constructive conversation

i feel like ive been clear about the problem im trying to solve

problem: i want to know where the user clicked from within my OnMouseDown hook. i dont want to use Camera.main to achieve this

[somber nacelle]

and instead of using OnMouseDown you could raycast from the mouse's position to get the object it is clicking on as well as where it clicked. or you could use the event system interfaces like IPointerClickHandler or IPointerDownHandler which conveniently provide PointerEventData

ideally though, you would also only have one MainCamera in the scene

[hollow cosmos]

i apologize, that was the answer i was looking for and you were right that the way i was asking was stopping us from reaching that

[hollow cosmos]

i agree with this, but i also dont like the idea of "main camera" in general

using tags is flimsy

but the event system approach allows me to have control by only putting the raycaster on the camera i want it on

[somber nacelle]

okay, then don't use tags or Camera.main and just track what camera you are using yourself. you should still ideally only have the one main camera in use though

[hollow cosmos]

and gives me the position information

thanks i got something working that im happy with

eventData.pointerPressRaycast.worldPosition is what i was looking for

from within OnPointerClick

[rugged finch]

I'm firing bullets from a firepoint at the front of a barrel. No matter what i do, the bullets fly 90 degrees to the left. This is the current situation but i've tried many configurations: GameObject newBullet = Instantiate(bulletPrefab, firePoint.transform.position, firePoint.transform.rotation);
Rigidbody rb = newBullet.GetComponent<Rigidbody>();
rb.AddForce(firePoint.transform.forward * bulletForce, ForceMode.Impulse);

[heady iris]

perhaps firePoint is just wrongly oriented

[rugged finch]

I've triple, quadrouple checked if the forward directions and rotations all line up, yet they keep flying directly to the left, even hardcoding a rotation

[heady iris]

select it in the scene view and make sure you're in Pivot + Local mode

ensure that the blue arrow points forward

if you have the scene view on Global, not Local, you'll see the orientations

[craggy totem]

Hello does somebody know how to change this

TO This

Code i use ```java
Vector3 DirToTarget = Vector3.Normalize(Target.transform.position - transform.position);
float DOT_Prodct = Vector3.Dot(transform.right, DirToTarget);

i assume that i need change this line "transform.right" but don't know to what
Thx in advance

[somber nacelle]

it usually helps to explain what you are expecting to change. also see #854851968446365696 for what to include when asking for help

[heady iris]

are you trying to get a vector that points to a target?

[craggy totem]

are you asking me?

[heady iris]

Yes. I don't know what you want to do.

I don't know what these "0.5" and "-0.5" values mean.

[rugged finch]

I'm noticing now that the blue arrow does not rotate along with my gun, but even then it does not make sense that without fail the bullets fly 90 degrees to the left of the barrel

[heady iris]

You are in Global mode.

Toggle this to Local.

(The UI might look different in older editors. Hitting X should toggle it either way)

You will find that the blue arrow points to the left

[rugged finch]

Yeah so the blue arrow does indeed point directly at the enemies but still the bullet flies to the left

[floral coral]

I have an object whoms orbit I want to fake: I have the orbit period (in seconds), and I want to continuously (in fixed update) update and store the current position (for saves), but I don't know how to get that. My first thought was to use a timer that increments 0.02 every fixed update, but I don't know if a very large float can even be added with a very small float (the orbit period would be pretty long)
edit: Could I use a long (long int) counter that counts up every fixed update, then divide that by 50 (fixed update frequency), then do counter / orbitPeriod? Imma try it out
edit(again): it actually seems to work

[heady iris]

Check that firePoint is assigned correctly. Also, make sure you aren't just hitting a collider and getting deflected.

(maybe disable the projectile's collider)

this assumes that it's non-kinematic, of course. If it's kinematic with a component moving it manually, then that's another problem entirely

[rugged finch]

omg thank you, this solved it

[craggy totem]

Ooo, at moment i am using this code

DOT_Prodct = Vector3.Dot(transform.right, DirToTarget);

in this instance (Image 1 ) DOT_Prodct's result will = about 0.1 f , it's at Left side of car.
and it is finding dot_product according transform.right.

but i need to find dot_product according not transform.right - but transform Looked at PINK object like in Image 2 so
DOT_Prodct's result should be = about - 0.2 f ,

[heady iris]

to get a vector pointing from A to B, just compute B - A

so, (known.transform.position - transform.position).normalized

[craggy totem]

2 minute, i'll try

[craggy totem]

like this

        private void OnCollisionEnter(Collision collision)
            {
                var emitParams = new ParticleSystem.EmitParams();

+          //   IF I USE
-               emitParams.position = new Vector3(0, 0, 0);
+          //   It will emit particles at "Custom_SimSpace_Transform"it is for example at (257,533,1043)in world postition
+          //   So i made this thing bellow
               emitParams.position = Custom_SimSpace_Transform.position - collision.contacts[0].point;
+          //   But it works not right as shown in video

                emitParams.applyShapeToPosition = true;
                Emit_1_obj.Emit(emitParams, 30);
            }

[heady iris]

Correct.

also, if you want an angle, you can use Vector3.Angle or Vector3.SignedAngle

[craggy totem]

thx very much ,i'll try it in now

[zinc parrot]

Hey so say I have 6k objects
And I need to know which objects have moved/had their transforms changed
Currently what I do is I have to go through each object, check transform.HasChanged, and then do stuff based on that
is there a better/more performant way to do this kind of check?

because this gets pretty bad

[heady iris]

what if you stored Transform, not the Component?

[zinc parrot]

oh shit right

[heady iris]

maybe along with a Dictionary<Transform, Component>

[zinc parrot]

that has a nonzero cost

[heady iris]

It looks like about half of the time is spent in there, yeah

I should really benchmark that. I've tried to minimize transform accesses in the past after noticing that

[zinc parrot]

the other half is List1.GetItem

[heady iris]

that will be harder to avoid

[zinc parrot]

mhm

tho this is also with deep profile on

[heady iris]

Ah, I was wondering

That seemed weirdly slow

[zinc parrot]

yeeee

[heady iris]

Do you directly control these objects, or are they getting bumped around by physics?

[zinc parrot]

I do not directly control them

[heady iris]

gotcha

if you did, then it'd make sense for the object to add itself to a HashSet of changed transforms

[zinc parrot]

mhmmm

[heady iris]

It's possible that get_transform is a lot less impactful when not in deep profile

i.e. that it's only 10% of the runtime, not 50%

[zinc parrot]

yep that is true

but it stacks up

oh yeah that defenitely helped

from 13.6ms to 11.6ms

I wish there was a way to have them combined but not also have that worse performance so I didnt have to have mutliple lists

oh awit ffs I also forgot that having List.Count as a variable in a for loops definition has a cost as it calls it every iteration

so now its time is a mix between transform.getHasChanged and list1.GetItem

wait also also finally
so transforms have a haschanged
is there anything like that for lights?

cuz otherwise ive got this mess where I have to check and update every light

[leaden ice]

A better way is to simply mark those objects somehow (maybe throw them in a dirtyObjects collection) when you move them.

rather than iterating over all of them

[zinc parrot]

but I dont know what has moved
I aint the one moving them

[leaden ice]

who's moving them

how are they moving

[zinc parrot]

not up to me
making something for others to use
so its up to them how or when or why they move

could be physics, could be other peopls scripts, etc.

[leaden ice]

You can't reliably use Transform.hasChanged.
You don't know if a user is also trying to use that for something

and then you will compete with them

[zinc parrot]

heck your right...

I didnt thinkg about that, so what else can I do?

[craggy totem]

everything works perfect ,another question i believe last one- with new code it is works like transform.forward is it possible to change it ,so it would work like transform.right. if Target at front or back result = 0 and if at right side it would be 1 or -1 ?

[heady iris]

The simplest way would be to rotate the vector by 90 degrees

Quaternion.AngleAxis(90, transform.up) * oldVector

assuming that transform.up points out of the screen here

ah, it does; I can see the gizmo cube in the top right

[zinc parrot]

anything for this? What can i do about lights and transforms then?

how does unity handle updating light info on the GPU?

[heady iris]

what are you trying to do?

not "check if things have moved and update the lights"

explain the gameplay you are creating

[zinc parrot]

I aint creating gameplay
I am creating a renderer thingy, and for that I need to know what transforms have changed so I can update the appropriate bounding boxes on my side, and same thing for unity default lights, I need to know which ones have changed so I can update my GPU side version of those lights to the new values

[hard viper]

If I have an object with a tiled sprite renderer, and I want to scale it (like to 1:3 from 1:1), how do I make it so it doesn't render as 1 very wide object, but like the whole area is being sliced to the new area?

[zinc parrot]

I inquire about this because I assume unity already makes a list of lights on the GPU from the ones on the CPU efficiently, which must mean they aint re-combining the entire list and sending it off every frame

[hard viper]

What I am getting is: if I used a sliced sprite set to 1x1, and then scale it by 3:1, it's just the same image with every pixel made 3x wider

If I make the sprite renderer have a width of 3, then know the whole thing is 1x9, with every pixel 3x wider

and if I don't use scale, then I'd need to figure out how to scale every individual component individually, and make sure nothing breaks -.-

[scarlet kindle]

Anyone know how long the delay is after SetActive(false)?

I have a script that sets a GO to inactive, then reactivates it within like 1 frame and it's not actually restarting it. As in, the Start lifecycle doesn't restart on it

I'm considering adding in some forced time delay with a coroutine, but i was wondering if maybe there's a better solution

[leaden ice]

there is no delay

SetActive is immediate

Start is never expected to run more than once per object, no matter how many times you activate and deactivate it

You should look into OnEnable which will run every time it is enabled

[scarlet kindle]

oh weird, so then I have a follow up question cuz I assumed that disabling it restarted the hook,

if a scene reloads & this GO is a Singleton instance, i am observing the Start looping again

[leaden ice]

Start will run on the new copy in the scene that is loaded
it will not run again on a DDOL copy that is leftover from the earlier scene

[lean sail]

It is an entirely new object then

[scarlet kindle]

here's my singleton code,
you're saying that the new object gets made, and replaces the existing one?

[leaden ice]

no

the new object gets made

and destroys itself

and leaves the existing one alone

that's what line 17-21 are doing

[scarlet kindle]

oh right cuz it skips 23 if it enters that conditional

ok so that is what i wanted, but i'm still observing the Start of the existing one firing again... hmm

[leaden ice]

doubt that very much

[scarlet kindle]

or something that appears that way

[leaden ice]

you can prove it with this:

Debug.Log($"Start is running on instance {GetInstanceID()}");```

put that inside Start

if you see it twice with the same number, I will believe you

[scarlet kindle]

ok i'll try it out!

oh you know what, idk if i actually ever tested that case! now that I think of it

you must be right

as you usually are 😛

i'll try the OnEnable like you mentioned instead

Does OnEnable qualify in the same condition as Start as well?

As in, could I move my Start code into OnEnable and it would cover that condition as well as the SetActive condition?

[leaden ice]

OnEnable runs any time the script is enabled

this happens:

• when it's first created (assuming it's active from the start)
• whenever it's enabled or the object it's attached to is activated

[scarlet kindle]

ok i think it should work for my case then i'll try it out ty 🙂

yep, it worked

thanks again!!

[stark ginkgo]

Anyone have any idea how I can add a composite outline to a set of tiles? It should look like the composite box collider, but not a collider of course, and the outline would be visible during runtime

[leaden ice]

You could use a LineRenderer and build the points from:
https://docs.unity3d.com/ScriptReference/CompositeCollider2D-pathCount.html
https://docs.unity3d.com/ScriptReference/CompositeCollider2D.GetPathPointCount.html
https://docs.unity3d.com/ScriptReference/CompositeCollider2D.GetPath.html

[stark ginkgo]

Thanks! gonna check it out

[scarlet kindle]

I'm running into a case where it appears that a Singleton is not found on Start() for a non singleton when a new scene is loaded.

GameObject.Find("MainManager") is returning null

[rigid island]

are you assigning the singleton in Awake?

[scarlet kindle]

no, in Start

[rigid island]

move it to Awake

[scarlet kindle]

should do Awake instead?

ok

ty!!!

[rigid island]

btw if you have a singleton why not make it static and use that instead of GameObject.Find("MainManager")

[scarlet kindle]

true, I should be referencing the instance member of it

I'll fix that too, thanks

[leaden ice]

There is no reason to use GameObject.Find for a singleton

you should have an instance reference you use directly

[scarlet kindle]

yup! i changed it

[scarlet kindle]

Is using Awake also recommended for dynamically loading any Resources into a GO on it's instantiation?

I am noticing a similar type of behavior for resource loading where there appears to be a race condition. Sometimes I get a resource loaded when doing it in Start, other times I don't

[rigid island]

hmm I don't use the Resources class, I would assume so. I can't tell you exactly for sure, I would double check the sequence of events maybe, you can mess with Script execution order but really that a last resort

[scarlet kindle]

Yeah i've sorta made an anti-pattern in my resource loading.

I need to refactor and think of a better way. Currently I have a BattleEnemyManager that gets the groups of enemy names for a particular battle from a Singleton, it then loads a Prefab, Animator Controller, and SOs for those enemies and attaches them to an EnemyScript that uses all of them. However, because those are attached at run-time after the EnemyScript is instantiated, there are race conditions...

I'm not sure what a better approach is when you are making procedural battles?

I think I'm loading too many separate resources, for instance I try to load a set of actions for the enemy in Resources which is totally uncecessary. I should remove that completely, put those Actions into the SO I am loading in instead

[vivid remnant]

Does anybody have a good example of a well organized modular weapon system or know where I can find one? I'm working on a weapon system that includes both hit scan and projectile based weapons and it's working fine but there are a few things that could be better structured with regards to the weapons that fire projectiles.

[rigid island]

Yeah i was thinking if you're using SO why not use those instead

[scarlet kindle]

yep I moved them into the SO and I think it fixed that particular race condition

avoiding Resource loading as much as possible seems like a generally smart practice

[rigid island]

Afaik it is

[stark ginkgo]

Is there any way to reference a class with a serialize field? Not a class instance but a class itself.

I have a base class with a bunch of derived classes, Need to be able to pick one of these derived classes in a ScriptableObject

[tawny mountain]

Hello everyone , I have this switch statement and I'm using it for voice recognition , Does anyone have any ideas that I could make it scale better? (making it work with a larger amount of keywords/phrases I can access) Like loading text into a struck or something

switch (arg0)
        {
            case "jump":
                animator.SetTrigger(arg0);
                recordingCanvas.resultText.text = arg0;
                break;
            case "second jump":
                animator.SetTrigger(arg0);
                recordingCanvas.resultText.text = arg0;
                break;
            case "hello":
                recordingCanvas.resultText.text = arg0;
                StartCoroutine(nameof(ToggleSpeechBubble));
                virtualAnimalSpeechBubble.text = $"Well hello there";
                break;
            case "good morning":
                recordingCanvas.resultText.text = arg0;
                StartCoroutine(nameof(ToggleSpeechBubble));
                virtualAnimalSpeechBubble.text = $"Good morning to you too!";
                break;
            case "good afternoon":
                recordingCanvas.resultText.text = arg0;
                StartCoroutine(nameof(ToggleSpeechBubble));
                virtualAnimalSpeechBubble.text = $"Good afternoon";
                break;
            case "where are we":
                recordingCanvas.resultText.text = arg0;
                StartCoroutine(nameof(ToggleSpeechBubble));
                virtualAnimalSpeechBubble.text = $"Family Farm & Home!!";
                break;


            default:
                break;
        }

[delicate zinc]

i know that i can multiply a quaternion by a vector to basically "rotate" the vector, how could i do the oposite? like... idk, ""divide"" the quaternion by a vector

[stark ginkgo]

Quaternion.Inverse might apply to you

https://docs.unity3d.com/ScriptReference/Quaternion.Inverse.html

[loud pagoda]

dang it, it keeps crashing on me :<

[delicate zinc]

yeah looking at the reference it should

thanks

[stark ginkgo]

np

[rigid island]

Dictionary ? or like some type of database?

[stark ginkgo]

bumping this ^^

[tawny mountain]

either , that would allow me to have a bunch of words/phrases to listen for , I know for sinlge words I could use a list but not sure if it'll be good for phrases

[rigid island]

you could probably use them as actual query depending on what accuracy you want , you can also experiment with Vector based DB

[tawny mountain]

ok I'll look into the Vector based database

[rigid island]

basically how language models interact with inputs , think like machine learning

[stark ginkgo]

Dictionary with a mapping of word -> phrase seems like the most obvious answer:
{
"hello": "Well hello there",
"good morning": "Good morning to you too!",
...
}
this is in json notation would need to be written in c#

[stark ginkgo]

Why use a vector database? That only really make's sense with llms to query information. If you need a specific mapping to each phrase then a dictionary/hash map makes much more sense.

[rigid island]

bcuz go big or go home 😛

[stark ginkgo]

lmfao

[rigid island]

Dict is def good enough, but yeah vector if you want to do a more complex dialogue chatbot thing

you can also just use other types of db that allow phrases as query , object/doc based ones

[tawny mountain]

Yeah that does seem more logical answer...

[proven plume]

if you want to reference the class, you'll want to reference the Type. It's not serializable by default in Unity but you could write your own serialization for it or look online for one. Storing the fully qualified name will essentially give what you need.

Alternatively, you could use MonoScript which is the type that represents a C# script file. It has a few handy helper methods, including one that will get the Type.
https://docs.unity3d.com/ScriptReference/MonoScript.html

[delicate zinc]

i'm having an issue with what i could describe as transforming points from local to world.

Down below is a picture with 4 points, enumerated from 0 to 4, these points are not Transforms, but instead local positions relative to the game object's position stored in a ScriptableObject (this later gets deserialized into structs for usage with a job)

So far i've managed to easily transform the points from local to world, since the Transform component has such capabilities (mainly Transform.TransformPoint for Local->World, and Transform.InverseTransformPoint for World->Local). so scaling the game object and moving it around the points change accordingly

the issue i'm having currently is when i rotate the object, by default, rotating the game object does not rotate the points accordingly, i know this is an easy fix, since i can just multiply the GameObject's rotation by the point to get the rotated point.

However, doing this is yielding me bizarre results, below is another picture of what my attempt at rotating these points yields, notice the fact that i'm rotating 45° on the Y axis, yet the resulting translation appears to be a rotation of 90°

Here's the code i'm using for transforming the points from world, to local, removing the calls to TransformPoint and InverseTransformPoint give me the expected rotation results, but of course, that means that the points arent properly transformed when the game object changes size or position

https://hastebin.com/share/cizayebuke.cpp

[stark ginkgo]

Thanks for the info, looked into it, probably gonna end up just storing a string with the class name and use reflection.

[tawny mountain]

@stark ginkgo what about adding things like setting animation triggers and calling methods?

( I replied to my original post to show what I mean )

I created the dictionary in it's own class (Image)
and use it like this in another class

if (voiceCommandDictionary.keyPhrases.TryGetValue(spkoenString, out string value))
        {
            recordingCanvas.resultText.text = spkoenString;

            StartCoroutine(nameof(ToggleSpeechBubble));

            virtualAnimalSpeechBubble.text = $"{value}";
        }

[stark ginkgo]

You can make a dictionary between the word/sentence and an all encompassing class like:
class Action
{
public bool respondsWithMessage, (if this is false, then call the callback method, if this is true just do the default response with the message variable)
public string response message,
public virtual void CallBack,
}

[delicate zinc]

i've managed to make this work by doing this

if(_transform)
{
    localPos = _transform.rotation * localPos;
    localPos = _transform.TransformPoint(localPos);
    localPos = Quaternion.Inverse(_transform.rotation) * localPos;
    return localPos;
}```
I dont quite understand how it works, but now rotations are properly applied to the points

[tawny mountain]

Could you elaborate on this a bit more?

[stark ginkgo]

I mightve misunderstood your question, do you want each sentence to have their own function be run depending on the sentence, or would each sentence go through the same functions

[tawny mountain]

Getting a key , method pair basically

Some keys will have a string value others will have a method value , or a value like animator.SetTrigger()

[stark ginkgo]

I haven't actually encountered this in c# as im more of a js person, but found something that should work:
This is a dictionary between a string, and a function that takes a string as an input and returns a bool

var dict = Dictionary<string, Func<string, bool>>

Then you can just have:

dict["hi"] = hiFunction;

where hiFunction is defined as:

bool hiFunction(string) {
  print("hello");
  return true;
}

Or you can also use an inline function, this is more popular in js:

dict["bye"] = parameter (string) => if (parameter == "string") return true;

They dont need to return anything or take any parameters either you can set them to void

[tawny mountain]

Thank you , I will try this

[swift falcon]

This is interesting, I never thought about storing functions in an actual dictionary...

I wonder if this would be a good way of doing console commands?

Thinkin about how you handle params that differ...

[edgy lynx]

@tawny mountain I'd do something similar, but instead I'd just make it event based.

[swift falcon]

Would it be better using generics with an abstract "Command" class that it inherits from and then just have an "Execute()" function with different params? Then they can just override the one that takes the correct params?

[edgy lynx]

lmao, im tired, this is actually nearly identical to what i would do. I would just use Action rather than Func. Ignore me 🙂 @tawny mountain

Because you could then have a single file/class to store all the stuff you need, and then just do a dict lookup and invoke, and you don't ever need to return anything it looks like, hence Action.

[dense tusk]

appreciate it lad

[knotty kelp]

Hello. I am trying to find a way to display gizmos in the game view for a VR game I am making. or at least a work around. I currently have exactly what I want showing at runtime in the scene view but cant see it in the game view which is what goes to my headset.

[quartz folio]

Gizmos are editor-only. If you want them to appear in a build you need to use a 3rd party package like Shapes, or draw the lines yourself

[knotty kelp]

cool I will look into shapes. Been trying to avoid drawing the lines myself as I would like them to be more like meshes

nvm shapes is 100$

[knotty kelp]

is there an option to get more than a wireframe with drawing the lines?

[quartz folio]

There are no options with Gizmos, no

[knotty kelp]

oh I meant with drawing the lines myself. It seems like that would only be able to produce a wire mesh.

[quartz folio]

Depending what you need, using a Line Renderer may do the job

but it's generally best for quite simple things

[knotty kelp]

hmm I want to render about 100 boxes according to tracking positions, visualizing the shape is very important for what I am doing as I am trying to implement basic gestures from scratch.

[quartz folio]

If they're the same size, you can model it. If they're not, you'd have to use shaders to make it resizable without deforming oddly.
If they're not scaling dynamically, line renderers may also do the job, you would have to test whether you can make an adequate box with them though

[knotty kelp]

forgive me I am not sure what you mean by "model it" the boxes would all be the same size but the size can be changed by a parameter in the editor at the moment. Could you elaborate on that?

[quartz folio]

I mean modelling it in a modelling program like blender

[knotty kelp]

what would I be modeling?

[quartz folio]

A suitable box with the wireframe thickness you want

[knotty kelp]

hmm I mean I tried using primative game object cubes but I wasnt able to instanciate them fast enough

[dense tusk]

i feel obligated to tell the person who taught me something i felt a wrinkle form in my brain while i did some research on that. i have been enlightened and i am now thinking in three dimensions. thanks again for the info

[rigid island]

5D chess moves coming soon

[dense tusk]

big facts

[leaden solstice]

you are not using your parameter Vector3 vector at all

[marsh mesa]

Is there a way to find all objects in an area without using colliders?

In 2D

I need to put them in an array

[gray jolt]

you can use GameObject.Find() but for some people, this approach is expensive.

I think the best way if you want to generate object, put it in a parent object, and loop through the parent and register to the array 🙂

[marsh mesa]

I'll only have to do it once, so I think it's fine to use find..?

Can it work with positions tho?

[hearty abyss]

There is a better way. Track objects from the start. if it's a rectangular or a circular area - proximity check is trivial. once entered you can add them to a separate list

[marsh mesa]

Hmm

[hearty abyss]

what are you trying to do anyway

[west lotus]

You would need some sort of spatial partition data structure

[gray jolt]

actually you can use find, it's provided by unity. but it's not best practice i think, since find would loop all object in the scene.

also you can get the position via transform. or gameobject.transform.position

[marsh mesa]

I have a rooms system in my game, and I want all the objects in a room be disabled once you leave it

I'm sure there could be a better way to do that, but that's the only thing I could think of

[gray jolt]

so you want to disable object once it's out of the room without rely on collider2d right?

[marsh mesa]

Once the player is out of the room

The objects that are still there are disabled

[west lotus]

Have a trigger on the exit and loop trough all the children of the room

[lean sail]

You definitely dont need to use find then or any physics overlap functions. Your objects should just be associated to the room like as a child or in some list setup in the inspector. When the player leaves the room (I assume detected by a trigger) then you can disable it from the existing list or child of a object

[gray jolt]

yup, I think this is the best approach too

[fervent furnace]

Disable parent gameobject will disable children too, unless some go are shared but in this case you cant simply use eg overlap box to do this ie your current approach

[west lotus]

Foe this case it most certainly is

[marsh mesa]

Oh I didn't think about it

Seems so obvious now lol

Thanks!

[gray jolt]

do you plan to change to other rooms once player exit the room?

[marsh mesa]

I didn't really get what u mean by that

Like, enabling all the stuff on entering? Yeah!

I already have the camera system set up to work with the rooms

[gray jolt]

oh. alright. good luck with the game 🙂

[marsh mesa]

Thanks!

[fervent furnace]

=1 is assigning 1 to levelcurrent, you need ==

code beginner question

[glacial star]

oh ye this the wrong channel mbmb

ty tho

[plucky aurora]

what this name has been changed to in unity any one knows
NativeMultiHashMap

in burst

idk what was the need for change of name

[versed fern]

How do i setup a gitignore again?

in fork

[sleek bough]

put gitignore file in the root project directory to use it as local

!vc

[tawny elk]

Using version control in Unity

• PlasticSCM
• Git: Get the latest .gitignore file from here. It should be placed at the root of your Unity project directory

[empty wigeon]

Hey can anyone help me with a rigidbody problem? I’m new to unity and I’m trying to make my rigidbody physics on my player work in the air so that they can maintain velocity and change the direction without accelerating. I can basically simplify the problem to this: The player is moving with a velocity with 0 drag and 0 friction, so they will just keep going if they don’t press anything. Assume the player already has velocity so they can’t speed up at all, just move around and maintain their current velocity (or stop if they wanted to). If they look in the direction of their velocity and A/D, they should turn, but maintain the same velocity. I also need to do this without manually setting the velocity, because that messes up other stuff, I just want to work with forces. The result should be that if the player is travelling forward, and presses D, they would slowly move right, making a curve until eventually they were travelling right with the same velocity as before.

[tired elk]

Not quite sure to understand your problem. Your character walk/run on ground, and after jumping, you want it to keep its velocity and have to input just change the orientation of you character. Is that it ?

[empty wigeon]

I'm trying to work on moving in the air, but you can ignore that, just imagine that it is moving. Like an air hockey game, with 0 friction and 0 drag. @tired elk

Not to change orientation of character but just to be able to move around a bit

The problem is that for the player to move, I need to add forces, and this ends up accelerating the player to a higher velocity. But they should just maintain their velocity. I have tried for 2 days and cant find a way to balance the forces

[tired elk]

Well, if you want to move around, you'll have no choice but to alter their velocity

[obtuse cape]

For some reason, this piece of code keeps giving me an error, it is meant to move my player based on wasd, but it doesnt move at all and outputs errors.

[tired elk]

A moving object, which maintains its velocity, can't physically move around its initial trajectory

[obtuse cape]

Thats the error

[tired elk]

What is line 38 ? You cut the line on the left

[empty wigeon]

No I'm going to change their velocity of course, but I mean I don't want to use rb.velocity =

[empty wigeon]

Because that is bad practice and causes issues in everything else

[obtuse cape]

Last line

[empty wigeon]

Just to use forces

[tired elk]

Then add force in the direction you want your character to go

[empty wigeon]

That accelerates them and they go faster.

[empty wigeon]

I'm trying to balance the forces but I can't work it out

[knotty sun]

then the getcomponent on line 22 has failed

[tired elk]

That's true only if the force is in the same direction of your current movement

[obtuse cape]

But there is a rigidbody on my player

[empty wigeon]

no, even if it is close

[tired elk]

That's more of a math/physic problem than a Unity issue unfortunately

[empty wigeon]

if player is heading north and you add a force east, they will speed up and change direction

[wicked river]

I am trying to figure out a nice way to keep track of the amount of Nades, bullets and consumables like health the player has at any given time.
What is most common way of approaching this ?
The way I am thinking is having a Class to keep track of the amounts of item the player has. But If I think about it a little more it seems a little stupid to take that route assuming the player has 2 pistols, 3 rifles, a sniper rifle and 3 different grenades . That will then be 8 x 2 variables so 16. 2 per item. Amount held and stack limit. That is excuding the actual amount of bullets the clip can hold. Then agian I might be overthinking this. Any input would be great

[tired elk]

Maybe your force is too strong then

[empty wigeon]

Yeah true. I'm sure other people have had similar issues though as its quite basic, so im looking for help here

[empty wigeon]

Any force will increase their velocity in that scenario

[knotty sun]

check to make sure the PlayerMovement script is not also on another object

[obtuse cape]

Nope, its only on my player

[tired elk]

This is weird. If you don't change the orientation of your system, if you add opposite force lesser than currently applied forces, it should decelerate

How did you implement your solution ?

[empty wigeon]

It isn't always an opposite force. The scenario I was describing was player heading north and they press D to add force east

should look like this

That's just one example scenario though. If they pressed S of course they would slow down and eventually stop

I've seen games have it and it seems like quite a simple setup but for some reason it is so unbelivably difficult for me. I've spent days and tried like 10 different approaches

[obtuse cape]

I have no idea what the issue is

[knotty sun]

Add a Debug.Log after line 22
if (rb == null) Debug.Log("RB is null",gameObject);

[tired elk]

This is what you're trying to achieve then ?

[empty wigeon]

This is what would happen in that scenario, yeah.

[obtuse cape]

didnt output anything

Oh mb

wait

[empty wigeon]

If you've ever played the game splitgate, I'm trying to achieve something similar to what they have for movement in air with speed

[obtuse cape]

ye it still doesnt output anything in debug

[knotty sun]

then your NRE's are gone as well?

[obtuse cape]

No they still are there

Just the debug message isnt showing

Here's the full code again

[knotty sun]

Ok, move the Debug.Log to before line 38 and try again

[obtuse cape]

Yes its

saying rigidbody is null

[knotty sun]

show console

[obtuse cape]

Is it because I have a camera

Attatched

Nah

nvm

[knotty sun]

if you double click on the message it should take you to the gameobject that generated it

[obtuse cape]

when i double click it takes me to the debu.log code

[knotty sun]

ok try this one
if (rb == null) Debug.Log($"RB is null in {gameObject.name}",gameObject);

[obtuse cape]

is any plugins causing this problem

[knotty sun]

Odd, something somewhere is Destroying your Rigidbody

[obtuse cape]

yeah

I have this other code

attatched to the camera

it works fine

[knotty sun]

try this.
Copy the GetComponent to above line 31

[obtuse cape]

still doesnt work

tried in void update too

[knotty sun]

Sorry. I'm an idiot.
your GetComponent is wrong
it sohuld be
rb = GetComponent<Rigidbody>();

[obtuse cape]

lmfao

Works now lol

Thats my fault i knew it was with the code

[knotty sun]

I'm amazed your IDE did not throw an error

[obtuse cape]

Yea exactly

i didnt even know you could do rb.getcomponent...

Thanks steve, you are a legend

[knotty sun]

of course, GetComponent can be done on any component. but doing it when that component is null and uninitialized should have thrown an error in your IDE

btw you would be better making rb public and filling it in the Inspector, that way you dont need the GetComponent

[brazen garden]

@obtuse cape another tip buddy is to call rb = GetComponent in start or awake, this will allow you to cache it and use it whenever rather than calling GetComponent in an update loop which can be taxing 👍

[knotty sun]

you should have read the complete conversation

[brazen garden]

@knotty sun just a tip

[knotty sun]

if you read the conversation, I asked him to copy the line FROM Start to FixedUpdate to test it

[brazen garden]

That's great

You could of just told him to make it public to make sure it's assigned but hey hoo

[knotty sun]

I did that as well, if you could be bothered to read

[rain minnow]

#archived-code-general message

[sullen fern]

I have an animation with root motion, but i want to remove the root motion and instead move the actual game object with the same distance

I'm currently trying to do this with a timeline by adjusting the distance traveled comparing the same animation, but one with root motion removed

is there a way to get the root of the moving object? the values i use to adjust this always are slightly off

[shy notch]

I have a rigidbody3d with mass 45 but after I jump it just slowly descends to the ground even though I didn't touch the gravity value, any idea what I could be doing wrong?

[sullen fern]

if i remember correctly mass doesnt affect the speed at which an object falls

but collisions between objects

[shy notch]

Hmm, if I comment out my movement the jumping works as expected

my movement:
myRigidbody.AddForce(new Vector3(moveDir.x * 60f,0f,0f), ForceMode.Impulse);

my jumping:
myRigidbody.AddForce(new Vector3(0,1f,0) * 1200f, ForceMode.Impulse);

so I guess my movement in fixed update is interfering with it somehow?

[sullen fern]

i would assume somewhere you are directly setting the velocity

but if not i cant see any issue with that

[shy notch]

Okay, I think it is fixed now. I'm not exactly sure what I did though 😅

Do you also happen to know how I can fix my character sliding on the ground when I land and I am not setting the velocity directly?

Increasing the drag on the character also makes it harder for them to jump and move

I set the physics material of the ground with both friction values 1 and it still feels like I am on ice

[steady valley]

Hi, sorry for the ping, I had the same problem and just wanted to thank you, it solved it!! (Doing that test in both callback side, for others in the same troubles)

[sullen fern]

i think the quickest solution would be to set velocity to zero, or slow the character down when you land

[sullen fern]

you mean that after you jump/ fall down somewhere you arent applying any more motion right?

[slate pulsar]

Hey, when I add a terrain to a gameobject like so: var terrain = island.AddComponent<UnityEngine.Terrain>(); and apply a terrain material and an alphamap, it works but the normals for the terrain layers don't show until I re-select the material in the inspector manually and I can't figure out why.

[shy notch]

there should be a little bit of sliding but not as much as I have now

[sullen fern]

if the answer to my question is yes, then i assume that the player doesnt lose the velocity of the x and z values when landing

only the y value is cancelled out

[shy notch]

Oh, I figured it out.
If you reset the rotation of the object, the physics in unity seem to get confused

I now froze all rotations of the character and there is no more sliding

Now I just need to figure out on my own how I can make my character still spin in the air

Can you like freeze and unfreeze specific axises in script?

[sullen fern]

like the constraints of the rigidbody?

[shy notch]

yes

[sullen fern]

yes you can

[fossil dock]

hello! I have a little issue with a script for an AR project, is there specific channel where i can get some help ?

[spring creek]

https://discord.com/channels/489222168727519232/497874498373156894

[fossil dock]

cool thanks a lot

[spring creek]

Unless it makes more sense to ask here

No prob!

[fossil dock]

well its a script issue

so i thought it was more fitting here

[spring creek]

If it's specific for AR, ask there. They do script help too of course. But if it's general, ask here

[fossil dock]

perfect thank you !

[slate pulsar]

does anyone know?

[obtuse solar]

Hi, im trying to make something that when I add a gameobject to an array in edit mode a button gets created for it ingame. is this possible? and how would i accomplish that?

[hard viper]

I do something like that frequently

Make a monobehaviour with a [SerializeField] private GameObject[],
and also make a prefab for the button object (so it has all the other knickknacks like the picture/text/scripts/etc

[spring creek]

No idea. May wanna try asking here
https://discord.com/channels/489222168727519232/497875195718271004

[slate pulsar]

ok

[hard viper]

OnStart(), call a function that goes through all the gameobject array, instantiate the button prefab for it, and set the button prefab as a child of the target object on canvas where you want to house them.

The target object on the canvas should have a HorizontalLayoutGroup/VerticalLayoutGroup/GridLayoutGroup component to help make them not look shitty together, automatically.

Then, in the newly instantiated button gameobject, we need to GetComponent, to go grab either a monobehaviour component in the prefab (to help us modify the prefab easily), or just GetComponent<Button>() so we can .onClick.AddListener to tie a function to it.

[hard viper]

make sense?

[obtuse solar]

Yes it does very much! thanks :)

[hard viper]

A word of advice btw; Keep a list/dictionary/array/etc with references to all the prefab-based objects you instantiated.

The thing that spawned them will likely be a point of contact in case you need to get references to the button prefabs.

Especially if you just want to ask all the buttons to be destroyed/disabled at once

[obtuse solar]

alr thank you for the advice i will keep that in mind

[proud hare]

what kind of game are you making?

[obtuse solar]

I want to make something like that old game habbo

but less complex ig

[proud hare]

i thin i know the game. like pixel isometric?

is a really old game, like 10 years ago now?

[obtuse solar]

yep thats the game

[obtuse solar]

I can't figure out how to connect the correct button to the correct index of the array. I want to spawn an object when I click the button. The button that i click should spawn the object that i have put in the array... how do i do this?

[obtuse solar]

it was a fun game back then tho haha

[hard viper]

do you mean you have an array of buttons that spawn gameobjects?

[obtuse solar]

no i have an array of objects

[hard viper]

that’s what I thought, so I’m confused by that comment

the button gets spawned

so clicking the button can’t spawn the button, because it’s already spawned

[scarlet viper]

Null-coalescing operators always check for reference equality and hence the discrepancy in their outcomes. For a destroyed GameObject, the reference equals null even though its actual value is not null.
so no ?? operator in unity?? 😦

[rigid island]

no

[obtuse solar]

I add my objects to an array, and when i start the game i instantiate the same number of buttons as the length of the array with my objects. when i click one of the instantiated buttons it should spawn the right object from the array

you get what i mean?

[scarlet viper]

it would be very handyyy thoo...

sad

[hard viper]

i get you. The button should not be accessing that array

the button spawner should be using GetComponent() on the new button’s gameobject to search for a monobehaviour that you made. This monobehaviour should have a public function so that the button-spawner can give it the information of what gameobject it is tied to

the button-spawner’s one responsibility is to spawn the buttons (and maybe re/despawn them). The button needs a script whose responsibility it is to do anything specific to what happens when the button is pressed.

Button spawner just needs to give the button handler the info of what it is tied to.

[obtuse solar]

ohhh i get it

thanks again

[hard viper]

sure

[naive swallow]

You can use it all you want, it's just gonna behave wonky for GameObjects. You can use it for C# things like lists, POCO data objects, and other non-Unity things

[hard viper]

My game has a lot of objects spawning/despawning/respawning. I’m thinking about changing from an object destruction strategy to object pooling method. For this, I’m contemplating making an IResettable interface so I can reset variables in components as though they are new. Is this a good idea, or is there a smarter way?

[rigid island]

iirc works for Coroutine as well ?

[naive swallow]

Yeah, as long as it isn't a UnityEngine.Object

[scarlet viper]

well i wanted to use it for unity's monos

[rigid island]

big sad

those inherit from UnityEngine.Object

[scarlet viper]

u think they will make it work in the future

[somber nacelle]

doubtful. the reason it doesn't work is because c# doesn't really have the concept of "destroyed" and unity have overloaded the == operator to check if a UnityEngine.Object has been destroyed. the null coalescing operator does not use the overloaded operators so it cannot check if the object has been destroyed

so using that operator with unityengine.objects can lead to MissingReferenceExceptions and other similar "your object has been destroyed but you are still trying to use it" exceptions

[heady iris]

indeed -- your GameObject variable doesn't literally become null when the game object is destroyed

It's just convenient to make it look like it does. "I don't even have a reference" and "I have a reference, but it's to something that was destroyed" are often handled in the same way.

[meager iris]

how can i fix my camera

why is it like this

[sleek heath]

not really a coding question...

[rigid island]

because its in orthographic mode,
dont crosspost , also not a code question

[fickle lichen]

IEnumerator JumpCooldown() // deprecated?
{
    onJumpCooldown = true;
    yield return new WaitForSeconds(.5F);
    onJumpCooldown = false;
}

async Awaitable JumpCooldown()
{
    onJumpCooldown = true;
    await Awaitable.WaitForSecondsAsync(.5F, destroyCancellationToken);
    onJumpCooldown = false;
}
```Hey I have a question about Unity 2023, are coroutines being replaced or removed and should I move on with async and await? ![pepeThink](https://cdn.discordapp.com/emojis/1096440243546230796.webp?size=128 "pepeThink") Anyone familiar? ![catStare](https://cdn.discordapp.com/emojis/1092430769508589578.webp?size=128 "catStare")

[leaden ice]

No

Coroutines aren't going anywhere

[orchid bane]

Will JsonUtility serialize a private field with [SerializeField] attribute?

[leaden ice]

Of course

[fickle lichen]

So for what was Awaitable class invented at all?

Huh?

[leaden ice]

It was introduced to improve unitys async/await support

[fickle lichen]

alright, but method names seem to be equivalent for coroutines, idk...

[rigid island]

because unity doesnt cleanup async Task properly

[hexed pecan]

I see it as async/await but with coroutine functionality

Like waiting for the next frame etc.

[leaden ice]

There haven't been any announcements about removing coroutines, you can assume they will continue to exist forever

Unity rarely removes things

[fickle lichen]

Yep...

[fickle lichen]

Alright, but still, seems it's some replacement for coroutines

[heady iris]

not really. coroutines remain extremely useful for doing work on the main thread in little increments.

[leaden ice]

Doesn't look like it supports many coroutine features

[hexed pecan]

What is missing?

[rigid island]

this might clear it up a bit for you
https://youtu.be/X9Dtb_4os1o

[fickle lichen]

Mhm there are these 2 methods

[fickle lichen]

That's how I found out about it, I even left a comment a week ago 😆

[mental rover]

it effectively can be - you can do everything and more with the new async/await support, or the third-party UniTask before 2023

[rigid island]

Ohh didn't see that lmao

[fickle lichen]

140 comments, would be surprising if you saw my comment. Anyway, thanks for your help

[fickle lichen]

Alright, I've upgraded to 2023 already

[mental rover]

it might take some time for the intuition to form on how async/await works, and might seem redundant for people who have already spent the time learning the intricacies of coroutines, but it's a cleaner way of doing things and much more in line with .NET standards outside of Unity (imo)

[heady iris]

I will have to break into that eventually.

[hexed pecan]

I've used async/await lately but it lacks the functionality of waiting in Unity-time instead just realtime

Might need to look at 2023 for awaitable then

Or maybe unitask?

[mental rover]

from what I can tell the 2023 awaitable implementation is effectively what UniTask has been doing for a while

[fickle lichen]

Before Unity I used to create simple desktop apps using Windows Forms, I am probably more familiar with async/await rather than coroutines 😄

[hexed pecan]

Yeah they look very similiar. Might stick to 2021 for this project and try UniTask

[mental rover]

UniTask synch context is based on the unity lifecycle, it has all of the nice things like gameobject cancellation tokens on destroy, etc

[hexed pecan]

Any downsides you can think of?

[rigid island]

hell yea Winforms is crap without async xD

[fickle lichen]

Yep but what I said I've been using async/await a lot so it's nothing new for me

But it seems to be new in Unity

[mental rover]

it's a struggle using it in a team that is fond of coroutines and doesn't want to learn something new and it can make a mess of callstacks with lots of nested tasks

[rigid island]

its not new per-se , it just wasn't implemented like it was for native .net

unity has async void Start for example

generally using void in async is considered bad
https://learn.microsoft.com/en-us/archive/msdn-magazine/2013/march/async-await-best-practices-in-asynchronous-programming#avoid-async-void

[hard viper]

the main thing I like about coroutines is that they are really easy to set to wait for specific parts of a frame. tied to different parts of unity’s execution order

[hexed pecan]

Have you used UniTask on editor scripts? I use a lot of async/await in the editor (for proc gen etc.), does it work just as well?

[hard viper]

given the clusterfuck of Unity’s new business model, it is a great time to learn async

[hexed pecan]

Actually UniTask might be redundant in edit mode since there is no need to hook up to unity's cycles (Update, FixedUpdate...)

[fickle lichen]

Yeah, I know, I'm familiar with System.Threading.Tasks.Task class and why async void is bad

[rigid island]

I just posted link in my edit

[mental rover]

I haven't tried it, I think there is support but not something I've looked into much

[hexed pecan]

Alright

[silk edge]

Hey I am trying to get some basics down for player controls. I am trying to get the player to be able to move foward and backwards, while also rotating witht he camera (in first person) also moving with the player
However I am having some trouble as the player doesnt move on inputs or rotate, and as soon as I set speed it flys off the platform

[rigid island]

show script

[rigid island]

so the speed is too low

[hard viper]

doesn’t rotating right mean you rotate your front to up?

[rigid island]

yeah you need Vector3.up iirc

[silk edge]

I want it to turn left and right for rotate but Idk if I did that right

[rigid island]

if its 3D you have to be rotating on the Y axis

[silk edge]

Oh ok thanks

[kind panther]

hi

[rigid island]

also what you mean "it flies off"

[hard viper]

right hand rule

rotation on X means X axis stays still as the yz-plane rotates around it

[silk edge]

Like as soon as I hit play the player goes flying off

[rigid island]

that doesn't explain what "flying off" means

[hard viper]

horizontal input is not an input

[kindred hearth]

how do I instantiate something when a particle system gets destroyed

[hard viper]

you aren’t translating by it

[kindred hearth]

like at each particles position

[rigid island]

I think there is a field for that

[kindred hearth]

really?

[kind panther]

u gotta do a if

[silk edge]

The cube on the left is the player and as soon as I hit play its like it hits something and starts tumbling off and flys away

[hard viper]

transform.Translate would need the input multiplied by vertical input or something

[rigid island]

yeah right now you're making ur object "autowalk"

[hard viper]

right now, you are programming a straight translation forever

[rigid island]

also Translate = No Collisions / Gravity

[hard viper]

also, you should probably lock the XY rotation of your gameobject

[silk edge]

Oh ok

[kind panther]

do u want ot move your player with input right ?

[silk edge]

Yes

[hard viper]

Translate teleports you onto the target destination

[rigid island]

do the same thing you did with your horizontal

and add vertical

[kindred hearth]

I cant find it

[rigid island]

let me double check

h.o

[hard viper]

there is a checkbox in rigidbody (i think) for constraints, to freeze rotation. You want to block rotation on x/y

[silk edge]

so a Input.getAxis("Vertical")?

[hard viper]

so you can only rotate along Z (which makes you turn left/right) in thr plane

[hard viper]

yes

[kind panther]

yee

[rigid island]

iirc you can use this callback

https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnParticleSystemStopped.html

[kind panther]

vertical is the W/S key

[silk edge]

Ah Ok I think I am getting it then

[kindred hearth]

yah I get that but how do I spawn something at each place a particle was

[rigid island]

and up/down arrow keys

[kind panther]

and that

[kindred hearth]

like even if the particle system hasnt ended

[rigid island]

Ohh each particle..hmm maybe you can use OnParticleCollision callback on each one

store their position or spawn it then when it collide

[hard viper]

this should help you understand rotation

rotation is done like this because it makes math with vectors immensely easier

[silk edge]

So what would I replace in the transform part for vertical input?

[kindred hearth]

what if they dont collide with nothing?

[hard viper]

GetComponent<RigidBody>()

[rigid island]

iirc unity is left handed

[hard viper]

then take that rigidbody, and .MovePosition

[hard viper]

that is cancer

[rigid island]

Y is Up not Z

it makes working from blender a pain

[hard viper]

right

[rigid island]

but w/e

[hexed pecan]

Sub emitters with destroy mode IIRC

[kind panther]

u can also use this way i find moree friendly
if (Input.GetKey(KeyCode.W))
{
transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
}

[silk edge]

This is what I have updated so far

[hard viper]

anyway
Rigidbody RB = GetComponent<RigidBody>();
RB.MovePosition(vectorForNewPosition);

[kindred hearth]

arent sub emitters only for other particles or something? also what is IIRC mode

[silk edge]

I know its probably still wrong

[rigid island]

u still need to add vertical input to translate

[silk edge]

I need to change forward don't I

[rigid island]

no you just add *verticatInput

[silk edge]

Ah

[hexed pecan]

Oh you want to spawn a prefab on the particles?
IIRC just means if i remember correctly

[hard viper]

MovePosition moves your rigidbody and checks collision as it goes from A to B

[kindred hearth]

oh ok, yah I wanted to spawn a prefab

[hard viper]

Translate is a straight teleport

[hexed pecan]

I dont think there is a callback for when a particle dies 🤔

[rigid island]

is this it ?
#archived-code-general message

[hard viper]

do you understand, mr raptor?

[rigid island]

ahh you mean individual particles

[latent latch]

This is why I write my own particle controller so I don't have to deal with unity's spiderweb API

[silk edge]

Ok so It does now take foward inputs thank you!

[hexed pecan]

Yeah I think they need to detect single particle deaths

[kindred hearth]

thats for the whole particle system

[silk edge]

Still flies away but only when I press foward lol

[kindred hearth]

yup

[rigid island]

yea

[kindred hearth]

and their positions

[kind panther]

there isent

[kindred hearth]

is there not a single way to handle it?

[rigid island]

looking at API but not seeing individual particles

but has to be somewhere, I mean you can get OnCollision on each one, why not other stuff like pos/lifetime

[kindred hearth]

yah exactly my thoughts

[hexed pecan]

You can probably get all particles and check their remainingLifeTime

It sounds a bit hacky

[kindred hearth]

what about their pos?

[hexed pecan]

Its all here https://docs.unity3d.com/ScriptReference/ParticleSystem.Particle.html

[silk edge]

is this correct to get the player to rotate left or right?
transform.Rotate(Vector3.up * Time.deltaTime * speed * horizontalInput);

[rigid island]

is it not working ?

[kindred hearth]

would I need to use a foreach to cycle thru each particle?

how would I cycle thru them

[silk edge]

no

[hard viper]

what is the matter

[rigid island]

maybe https://docs.unity3d.com/ScriptReference/ParticleSystem.GetParticles.html

[kindred hearth]

also I still dont see a ParticlePos

[hexed pecan]

https://docs.unity3d.com/ScriptReference/ParticleSystem.GetParticles.html

Oh nava beat me to it

[hexed pecan]

It gives you an array of Particles. Each particle has a position

Maybe read the doc I linked

[rigid island]

what is currently happening? check inspector are numbers moving ?

[silk edge]

Also It does collide with the other cubes but bounces off them and flies away

[rigid island]

show inspector for this object

[kindred hearth]

oh I see it thank you :)

[rigid island]

ah jeez

ur mixing like 3 diff things

[hexed pecan]

Again, keep in mind that this is pretty hacky because you would have to detect that the particle is about to die, while it is still alive
Just based on remainingLifeTime it will be error-prone since it might live 0 frames or it might live 2 more frames

[rigid island]

remove the rigidbody @silk edge

use character controller

switch Translate to Move

box collider also not needed

[kindred hearth]

is lifetime measured in seconds? also is this heavy and bad for optimization?

[silk edge]

so transform.Move?

[hard viper]

rigidbody.MovePostion

[hexed pecan]

Just read the doc.

[rigid island]

no you have to reference character controller

[silk edge]

Oh Ok

[hard viper]

character controller if you are using that

[rigid island]

public CharacterController cc

cc.Move(etc..

[hexed pecan]

What is the final effect here? Like what are you trying to do
And how many particles

[kindred hearth]

blood

[rigid island]

yeah but what about after

[hard viper]

don’t make these things public. just private and getcomponent

if your game gets big, you’ll have so many goddamn boxes to fil

[rigid island]

nah dont use get component

[kindred hearth]

what I was doing before was when an enemy was shot it spawned a bit of blood nearby

[rigid island]

you should use SerializeField

[kindred hearth]

but its better if I use particles

[hexed pecan]

Blood drops that spawn blood splatters, or what?

[rigid island]

GetComponent is slow

[kindred hearth]

yah exactly

[kind panther]

yo guys does anyone how can i make my itens stack when i pick em up to the inventory?

[hard viper]

only when you spam it multiple times a frame

[silk edge]

Is this correct?

[hexed pecan]

Is it a 2D game or why you can't use collisions?

[kindred hearth]

it is a 2d game

[rigid island]

I mean is just safer and faster to use inspector but agree shouldnt be public but Serialized, but he seems new

didnt wanna explain serializefield llol

[kindred hearth]

top down

[rigid island]

yup

[hard viper]

i’m just saying don’t serialize it. you know it’s going to be there. Just GetComponent in awake

[kindred hearth]

I was maybe thinking for each particle to

start a coroutine

with the time remaining

and when it reachs the end

it spawns the blood

[silk edge]

Oh the PlayerController is not assigned

[rigid island]

you have to drag the component inside

the one on your player

[silk edge]

No in the script I mean

[rigid island]

or it doesn't know which one to use

[hexed pecan]

I dont think theres a way to track a single particle. The array changes all the time so it would change its place in the array constantly

[rigid island]

yes you have to assign it inside the Field on the script
where you change the speed, there should be another field under it

[hexed pecan]

There's always VFXGraph, maybe it can support this

[silk edge]

Neveremind I see what you mean!

[kindred hearth]

I wont use a emitter over time

I'll just do it in burst

[hard viper]

there are 2 ways to assign variables in unity. One is via C# code, where you manually tell it x = whatever. And then you have Unity Inspector, where if a field is serialized, then in the unity editor, you can drag it to a little box for the variable

[hexed pecan]

Yeah but some particles die earlier than others, right?

Maybe it can work if they all have the same lifetime, but idk, hacky as hell

[kindred hearth]

thats why when they spawn I should for each start a coroutine?

[kindred hearth]

what would your suggestion be

how has no one ever think of doing something like this

it has to be a way

[silk edge]

Alright so that fixed the major problems of it flying off. It now moves foward and backwards, thank you! Now do I do cc.Rotate for the rotate part>

[hexed pecan]

I would look at VFXGraph 🤷‍♂️
Or render the blood drops with some custom rendering code (DrawMeshInstanced etc.) and do the logic yourself

[rigid island]

Cc doesn't have rotate, you can just rotate the same way with transform @silk edge

[kindred hearth]

that sounds pretty harsh

I'll have to look into it

[latent latch]

how much blood are you rendering

[silk edge]

Ok so stick with transform.Rotate?

[rigid island]

yup

[dusk plume]

hi i am pretty beginner to unity and networking in general,
i use mirror and i would know how to do a variable in network that all client receive

[latent latch]

use mirror's discord

[silk edge]

Ok it does rotate my bad, just really slowly

[kindred hearth]

not a lot, I delete it per room like 10 to 50 prefabs per room

[rigid island]

man ur a beginner you're gonna be in a world of hurt. Dont' start off with Mutlipayer

[dusk plume]

ok i didn't know there was a discord for mirror ty

[rigid island]

you need to proivde a multiplayer for rotation speed

just like you have speed for movement

[hexed pecan]

One more thing I can think of, is to use particle collisions with a 3D plane collider on the floor that the blood hits

[dusk plume]

no i don't have really many problem i already coded in other languages so c# is not really difficult

i just need to learn things

[latent latch]

Just do an object pool and make yourself a controller if you want full control of it all.

[rigid island]

what did you code in what language?

[silk edge]

Yeah i am adding turnSpeed = 5.0f then adjust till it works

[hexed pecan]

(You would need to use a Z axis gravity for the particles since it is 2D, not Y axis)

[dusk plume]

i use python.

[rigid island]

I coded In many languages, but mostly Hello World

[rigid island]

python isn't really like c# but alr.
Networking in unity isn't easy, best of luck

[kindred hearth]

that might be an idea

[kindred hearth]

can u elaborate?

[hexed pecan]

It will probably solve it for you

[dusk plume]

ik but when you have basic of programmation it's not pain

you are right about networking

[rigid island]

really ? because there is a reason a lt of expereinced coders here don't recommend it until you've done quite a few single players first

even with programming knowledge networking is a pain

[dusk plume]

i already made a thing in single player

to learn basic

[dusk plume]

you are right (:

i am suffering

lol

[kindred hearth]

ya

[heady iris]

networking makes everything hurt

[latent latch]

Pool of GOs with colliders and collision events

[rigid island]

like a fully polished single player thats on store ?

lol

[heady iris]

including my knees

somehow

[kindred hearth]

I tried making my own blood drops

but it wasnt flexible

[dusk plume]

not really basic character, i followed brackey tutorial. I didn't copy all, i learn with his video so i make system myself, alone

[kindred hearth]

and it didnt look good

[latent latch]

make it flexiable ;)

[rigid island]

it really does make you feel like you know nothing and give up

[heady iris]

I did a little prototype game with MOBA-style movement

Getting smooth movement is...hard

[latent latch]

You can always use the particle system to render locally to a GO, and handle everything else yourself

[rigid island]

thats a single player game you made so far? well..best of luck bro ur a brave one

[dusk plume]

ty good luck to you too

[rigid island]

Yeah! the most annoying part is faking physics when you want to make physics games :
I cannot get proper sync of ball in a physics based Pang multiplayer

[waxen burrow]

hey @heady iris, Re on the [serializedRefrence] label suggestion from monday. When making serializedRefrences, should the parent class be marked that way as well, or just the childeren?
apologies for the ping

[silk edge]

Thank you again @rigid island! It rotates and moves around. Now I just need to have it push the blocks off but I think that wont need much scripting

[rigid island]

hmmm luckly there is a neat function on Character Controler

https://docs.unity3d.com/ScriptReference/CharacterController.OnControllerColliderHit.html

this has example code of push rigidbodies with your character controller

ofc you can code it yourself with some raycasts if you want to do maybe a "use" key or "push key"

[heady iris]

The classes have to be serializable. You put [SerializeReference] on the field.

(you will also probably have to do add some extra attributes / derive extra interfaces, depending on the library you're using)

[static bramble]

using UnityEngine;
using System.Collections.Generic;

public class CraterCreator : MonoBehaviour
{
    public Texture2D hMap;

    public float mapScaleMultiplier;
    void Start()
    {
        GenerateTerrain();
    }

    void GenerateTerrain()
    {
        //Texture2D hMap = Resources.Load("Assets/HeightMaps/halifax.png") as Texture2D;

        List<Vector3> verts = new List<Vector3>();
        List<int> tris = new List<int>();

        int chunkSize = 250;

        for (int i = 0; i < chunkSize; i++)
        {
            for (int j = 0; j < chunkSize; j++)
            {
                verts.Add(new Vector3(i, hMap.GetPixel(i, j).grayscale * 100, j) * mapScaleMultiplier);

                if (i == 0 || j == 0) continue;

                tris.Add(chunkSize * i + j);
                tris.Add(chunkSize * i + j - 1);
                tris.Add(chunkSize * (i - 1) + j - 1);

                tris.Add(chunkSize * (i - 1) + j - 1);
                tris.Add(chunkSize * (i - 1) + j);
                tris.Add(chunkSize * i + j);
            }
        }

        Vector2[] uvs = new Vector2[verts.Count];
        for (int i = 0; i < uvs.Length; i++)
        {
            uvs[i] = new Vector2(verts[i].x, verts[i].z);
        }

        GameObject plane = new GameObject("ProcPlane");
        plane.AddComponent<MeshFilter>();
        plane.AddComponent<MeshRenderer>();

        Mesh procMesh = new Mesh();
        procMesh.vertices = verts.ToArray();
        procMesh.uv = uvs;
        procMesh.triangles = tris.ToArray();
        procMesh.RecalculateNormals();

        plane.GetComponent<MeshFilter>().mesh = procMesh;
    }
}``` so my Texture2D is my world map height map as a png. What am i doing wrong that its not letting me make the chunk size larger than 250?

[silk edge]

So I did run into one more problem, the cc.move only moves the character fowards on the x axis, not where it is facing

[rigid island]

correct Vector3.forward is in Worldspace

you can just use transform.forward

transform gives you local

also its Z axis

[silk edge]

so Vector3.transform.forward?

[rigid island]

no

[heady iris]

transform is a variable available in every MonoBehaviour.