archived-code-general

[swift falcon]

not exactly sure if it belongs in this channel, but it probably does

i'm working on a crosshair system where the crosshair only appears when you're hovering over an object that can be interacted with. everything was fine until i remembered to add a check to make sure you were close enough to the object in order to use it.

now, for some reason, when i hover over an object, it doesn't detect i've done so. only when i stand still, hover off the object, and hover back on, does it detect properly, and if i move around, it fails again

code is right here (still new to using c# but i think this belongs here over the beginner channel)

`void OnMouseEnter()
{
float dist = Vector3.Distance(this.gameObject.transform.position, camera.transform.position);
if (dist < minDist)
{
//these two following lines work fine on their own without the distance check
isHover = true;
chAnim.Play("Base Layer.CrosshairIn", 0, 0f);
}
}

void OnMouseExit()
{
    float dist = Vector3.Distance(this.gameObject.transform.position, camera.transform.position);
    if (dist < minDist)
    {
        //as well as these two
        isHover = false;
        chAnim.Play("Base Layer.CrosshairOut", 0, 0f);
    }
    else
    {
        //so that it doesnt play the fade out animation whenever you hover off anything
        isHover = false;
    }
}`

[timid crater]

Good evening! Can I use an action to assign a value to a variable? for example I have a function that returns a GameObject, and I have an action that is subscribed to this function, what should I do to assign the value returned from the function to another variable? code goes like..

public static Action a;
public GameObject object;

void Start()
{
  a += myFunction;
}
// Somewhere in the code.
a?.Invoke();

// In another script.
public static GameObject myFunction(GameObject obj) {}

I don't know where to go from here to do what I was wondering in the question I listed above.

[tepid charm]

so... isHover can only be set to false if you are within the minDist... that seems like an issue, but not the one you're talking about

try logging when you hover and exit, and the distance

see if anything seems off

[swift falcon]

i believe the else statement also sets isHover to false, but i'll log it and check to see if anything is weird

[tepid charm]

oh sorry

I missed that

[swift falcon]

nothing different from what was already happening

i forgot to add that it does detect when you hover off just fine

its only hovering on that doesn't work right

ok, so nothing is wrong with the code, some of my colliders are the issue

breaking up a few of them into smaller fragments appears to have fixed the problem

[glossy basin]

Hello there, when working on Jobs system and using burst compiler, what is the difference between native list and native array?

do they have very specific use cases?

[heady iris]

NativeList is resizable. NativeArray is fixed in size.

Use NativeList where you would want a List, and use NativeArray where you would want an array

[lament bloom]

I'm trying to figure out how to go about implementing combat, my simple vision for now is just that when a sword swing animation plays and the sword's mesh collider comes into contact with the collider of a combat-capable entity, damage should be dealt to that entity according to

1. the sword's stats
2. the player's stats
3. the stats of the thing being attacked

I'm thinking of having the receiver of the attack be listening/responding to the collision from the sword, but I also need to wait for an animation event from the attacker to fire before registering a hit. How would I go about waiting for an animation event to fire, but respond to it only if a collision is occurring? In my head it would look something like

public void OnCollisionStay(Collision collision)
{
    // wait a finite amount of time for animation event to fire
    if (eventFired)
    {
        // look up the stats of the weapon and the player who attacked us and take damage accordingly
    }
}

maybe i can use a coroutine here?

[heady iris]

oh hey, I already implemented something like this

here's my setup:

a Weapon has a Moveset. The Moveset tells you what animations to play and how powerful each move is.

a Weapon also has Hitboxes. The Weapon turns the Hitboxes on and off at the appropriate times through animation events.

Entities have Hurtboxes

if a Hitbox touches a Hurtbox, the Weapon is told about the collision

[lament bloom]

i see

you activate the colliders only when the animation is happening

[heady iris]

the Weapon removes duplicate collisions

if it sees a fresh contact, it notifies the Hurtbox that it got hit

the Hurtbox tells its Entity that it took a hit

Hitboxes and Hurtboxes also have "quality" fields, so that glancing hits don't hurt as much

so if the glancing hurtbox is touched first, you might get an 0.3 quality hit

and then if that hitbox goes on to strike the good hurtbox, you get an 0.7 quality hit

(not 1.0 quality, or you'd be double-dipping on damage)

[lament bloom]

this makes sense yea

hmm

[heady iris]

also, I use triggers for everything

[lament bloom]

unfortunately my anim set comes with only a single animation event on every attack animation indicating when the attack fully "connects" but this isn't ideal for my situation

not rly looking forward to going in and adding 2 extra anim events to every attack 😹

but it's probably the best way to go about this sort of thing

[heady iris]

yeah

I also have separate events for each limb

my "kick" weapon puts a hitbox on your foot and then activates it at the appropriate time

[tepid charm]

yeah that's what I usually do

gives you very precise control over the animation

[shut ivy]

can anyone help explain to me how object rotation works in world vs local space? I have a bullet hole decal i'm spawning into my game and aligning to the normal of the terrain, which works perfectly fine, but if i try to modify the local Y axis of the decal it completely overwrites all the axis. Is there a way to preserve all object rotation in world space and only modify one axis in local space?

GameObject bulletHole = Instantiate(_decal);
bulletHole.transform.rotation = Quaternion.FromToRotation(Vector3.up, hit.normal);
bulletHole.transform.localRotation = Quaternion.Euler(0, Random.Range(0, 180), 0);
bulletHole.transform.position = hit.point + hit.normal * .001f;

I've tried with bulletHole.transform.localRotation = Quaternion.Euler(bulletHole.transform.localRotation.x, Random.Range(0, 180), bulletHole.transform.localRotation.z); and
bulletHole.transform.localRotation = Quaternion.Euler(bulletHole.transform.rotation.x, Random.Range(0, 180), bulletHole.transform.rotation.z); as well

[heady iris]

I would suggest using AngleAxis

you give it an angle and an axis (surprise!) and it produces a rotation

so, if the axis is the world-space vector pointing into the bullet hole, then the angle will spin the decal around

I guess I'd just get it lined up, then use transform.forward (or whatever direction is "in")

you can figure that out by looking at the arrow gizmos with the decal selected

if this was the decal stuck in the ground, then I'd say "in" is the -Y axis

because the green arrow (Y) is pointing out of the ground

so I'd use -transform.up

[heady iris]

to understand the problem, notice how spinning something can wind up changing several axes

if I give that capsule a random rotation (so that all three axes are non-zero), grabbing the red or green rings changes all three axes at once

[shut ivy]

thanks a bunch, this is definitely helping me get in the right direction, i've got it spinning on the correct axis now

[heady iris]

this makes it hard to reliably change a rotation by just mucking with one number

[shut ivy]

i can get the decal to reliably rotate around it's local y axis now, which is amazing, but it's still resetting x and z to zero no matter what I do, this is all amazing information but at this point i think i'm just fine with having the decal look the same every time it's spawned lol

[heady iris]

I don't understand -- if it's correctly rotating around the Y-axis, how could the world X and Z Euler angles be getting reset to 0?

wouldn't that mess up its orientation?

[shut ivy]

i should have been more clear, after i align the decal to the normal if I try to rotate around just a single axis it resets the other two to zero and throws off the alignment completely, the angle axis works for another application in the same project tho so thanks a million for that information

turns out i was doing the declaration backwards -_- my final code:

bulletHole.transform.localRotation = bulletHole.transform.localRotation * Quaternion.AngleAxis(Random.Range(0,180), transform.up);

what i was doing

bulletHole.transform.localRotation = Quaternion.AngleAxis(Random.Range(0,180), transform.up) * bulletHole.transform.localRotation;

instead of multiplying the existing rotation against the new rotated axis, i was creating a new rotation around an axis and multiplying that against the rotation, so 0x * localx

[lament bloom]

Is there a reasonable way to differentiate between colliders on the same object for various intents and purposes?

[heady iris]

ah, you should just use this to set the rotation

You're spinning the object around an axis

the result is the world-space rotation

since transform.up is the world-space up vector

[shut ivy]

i thought transform.up was local and vector3.up was world?

[heady iris]

transform.up is the world-space direction that "up" is for you

I guess Vector3.up is the local-space "up" direction

which is a constant, because it's your local space!

[shut ivy]

oohhh

[leaden ice]

transform.up is world space and Vector3.up is not inherently world or local space or depends on how your code is interpreting it

[swift falcon]

Hi I want my focus to move smoothly if I look to the sides, my focus moves smoothly vertically but horizontally it does not.:

        // Rotation Y
        float yAngle = Mathf.LerpAngle(transform.eulerAngles.y, playerInput.horizontalMouseInput, smoothness);
        transform.eulerAngles = new Vector3(transform.eulerAngles.x, yAngle, transform.eulerAngles.z);

        // Rotation X
        float xAngle = Mathf.LerpAngle(transform.eulerAngles.x, playerInput.verticalMouseInput, smoothness);
        transform.eulerAngles = new Vector3(xAngle, transform.eulerAngles.y, transform.eulerAngles.z);``` help

[heady iris]

that seems fine

what if you remove the code that controls the X rotation?

just to rule out some kind of influence

[harsh osprey]

i'm trying to make it so that if a gameobject with a specific tag collides with a trigger, something happens, but it isn't working for some reason even though the code seems fine to me? the debug log that outputs 'working' is the only thing that runs, but it seems to ignore everything else

    void OnTriggerEnter2D(Collider2D collider)
    {

        Debug.Log("working");

        if (collider.gameObject.CompareTag("solid"))
        {
            Debug.Log("solid gameobject trigger working");
        }
        else if (collider.gameObject.CompareTag("striped"))
        {
            Debug.Log("striped gameobject trigger working");
        }
    }

[quaint rock]

debug.log the collider or its tag and see what you are actually getting

[heady iris]

yes

[harsh osprey]

ohh it's giving me the trigger instead of the gameobject i want it to do something with

that should've been obvious to me 🤦‍♂️i think i can figure it out from here, thank you

[lament bloom]

im finding that occasionally due to animation oddities, the character "drawing back" their sword after a strike counts as a second collision

how can i avoid counting these accidental collisions as actual attacks?

i also find that the weapon (obviously) collides with the person holding it 😹 i don't really know a smart way to differentiate valid collisions between assailant weapon and body from accidental collisions

[heady iris]

in my system, the hitbox checks that

    void OnTriggerEnter(Collider other)
    {
        if (other.TryGetComponent<Blockbox>(out var blockbox))
        {
            weapon.entity.StateMachine.TrySetState(weapon.entity.states.flinchState);
            weapon.Contact(this, blockbox);
        }
        if (other.TryGetComponent<Hurtbox>(out var hurtbox))
        {
            if (weapon.entity != hurtbox.entity)
                weapon.Contact(this, hurtbox);
        }
    }

[lament bloom]

hmm

[quaint rock]

you can use physics layers to handle this, lets you define what layer is aloud to collide with what other layers

[lament bloom]

what is .Contact

[heady iris]

that's part of my code

[quaint rock]

also just enable the collider only when you need it

[lament bloom]

i do this already

hmm

[quaint rock]

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

[heady iris]

sounds like it's enabled at the wrong moment, then

[lament bloom]

yeah it might be

[heady iris]

that doesn't sound very scalable

you'd need to put each unit on its own layer

so that it can't hit itself

[quaint rock]

though it was just for like the player vs enemies, if its per unit just detect that case and return early on the collsion message

[heady iris]

well, the enemies shouldn't hit themselves, either!

but maybe they should be able to infight

my game has basically 0 distinction between the player and non-players (it just swaps in a different brain)

it's a nice philosophy

it also makes it really easy to enable Silly Mode where the player is given control of some garbage low-level enemy

:p

[lament bloom]

hmm

[lament bloom]

id love to have this yea

[heady iris]

the tl;dr to achieve that:

make your "entity" class get all of its instructions from a "brain" class

actually let me just find the article..

https://kybernetik.com.au/animancer/docs/examples/fsm/brains/

this is specifically in the context of Animancer and its Finite State Machine system

[lament bloom]

i checked back with my animation events and they seem right, it seems like pretty much ever attack hits the training dummy twice somehow, not really sure why? i'm using OnCollisionExit too so it should technically only trigger once the sword has left the training dummy, not while it's making contact

[heady iris]

it could wobble back and forth tho

also, maybe the dummy has two colliders

[lament bloom]

oh shit yeah

thanks 😭

[heady iris]

:p

I store all of the hit data like this

private readonly Dictionary<Entity, List<Tuple<Hitbox, Hurtbox>>> hits = new();

[olive shore]

Christian server pls dont swear, thank you, go with god

[heady iris]

for every entity, it records every hitbox-hurtbox pair

most of that is irrelevant

i could just store a set of entities

actually

why don't I just do that

I do need to remember the quality of the hits, but that's just a float

I'll think of something!

[lament bloom]

what kind of project are you working on

[heady iris]

it's a soulslike

[lament bloom]

lovely

good luck 🫡

[plucky karma]

There has to be a much more efficient way than doing this? Consider using encapsulation, e.g. a class that holds this information.

[serene lake]

I am using netcode for gameobjects and keep getting this error:
```ArgumentException: Type System.Int32[] is not supported by NetworkVariable1. If this is a type you can change, then either implement INetworkSerializable or mark it as serializable by memcpy by adding INetworkSerializeByMemcpy to its interface list. If not, assign serialization code to UserNetworkVariableSerialization.WriteValue and UserNetworkVariableSerialization.ReadValue, or if it's serializable by memcpy (contains no pointers), wrap it in ForceNetworkSerializeByMemcpy1.

Does anyone know why this is the case

[night harness]

[System.Serializable]
public class UnityEventCollider : UnityEvent<Collider>
{
}

public class TriggerForwarder : MonoBehaviour
{
    public UnityEventCollider onTriggerEnter;
    public UnityEventCollider onTriggerStay;
    public UnityEventCollider onTriggerExit;

    void OnTriggerEnter(Collider other)
    {
        onTriggerEnter.Invoke(other);
    }

    private void OnTriggerStay(Collider other)
    {
        onTriggerStay.Invoke(other);
    }

    void OnTriggerExit(Collider other)
    {
        onTriggerExit.Invoke(other);
    }
}

Unity isn't liking this UnityEvent I'm trying to set up and I'm not sure why

the functions added in the collider events are

    public void ForwardTriggerEnter(Collider other)
    {
        if (other.CompareTag("Player"))
            InteractUIUpdate(true);
    }

    public void ForwardTriggerExit(Collider other)
    {
        if (other.CompareTag("Player"))
            InteractUIUpdate(false);
    }

[leaden ice]

Show the full stack trace of the error

[lofty storm]

Umm.. So I want to make a controls editor for my game. The input system I used for my game is the old fashioned way ( If (input.Getkeydown(keycode.w)) ) one. So how will I be able to do this?

[potent sleet]

save yourself headaches and use new input system

[night harness]

Would that be this?

[leaden ice]

Make a KeyCode variable and allow the user to change it
Or
Switch to the new input system and use the interactive rebinding feature

[leaden ice]

That looks like a different error

[night harness]

oh im dumb, ignore the first error i sent

[lofty storm]

switching is easy right?

[leaden ice]

Looks like you set an argument in the inspector which is not a collider

[lofty storm]

or is it a lot of work?

[potent sleet]

easier to use rebinds, but it's a new system so there is a bit of learning curve

[leaden ice]

Reassign the listener in the inspector to fix it

[potent sleet]

once you learn it you wont go back to old inputs, trust @lofty storm

[night harness]

I can't set the argument in the inspector because it doesn't exist until my function is called

[leaden ice]

It's easy for me, but not if you don't know how to use it

[lofty storm]

Thanks!

[leaden ice]

I think that's part of your problem that you did set it in the inspector. Possibly by accident

Show the inspector

For the event

[leaden ice]

Yeah

You've assigned the function incorrectly

You assigned them from the static parameter list

Reassign and use the top entry for the function where it says dynamic

When done properly the bottom right part will disappear (where it says None)

[night harness]

wow that is very easy to miss

thank you

[plucky karma]

Why do you need a trigger forwarder script...?

All monobehaviour objects have OnTrigger event implemented...?

[night harness]

I'm calling it on behalf of another object

and afaik the stock OnTrigger calls have protection on them to stop that

if I missed a way i'd love to know

[serene lake]

Can somebody help me with my problem?

[potent sleet]

#archived-networking has pin to NGO discord

[lament bloom]

is there a straightforward way to check if a component exists on any parent of a given game object?

[plucky karma]

TryGetComponent?

This sounds like a bad practice use.

[somber nacelle]

#archived-networking
but also NetworkVariable does not support arrays out of the box
https://docs-multiplayer.unity3d.com/netcode/current/basics/networkvariable#supported-types

[lament bloom]

may be true

[glossy basin]

Hello there, does anybody know or have an article for merging multiple noises together? I am currently making a game like minecraft and I would like to have some more variation on my noise, essentially I would like to add some flat areas, and some others with mountains and so on (biomes pretty much). I tried multiplying two noises together but results get extremely random; I also tried using +, it looks good but still doesnt look natural

these are the results of multipliying to different noises together

this is using + operator but still doesnt look good

[lament bloom]

I'm looking for an idiomatic way to get access to information about a character and weapon when on the receiving end of an attack from said character and weapon. So I'm starting out with just the Collision that results from the weapon coming into contact with us, and from there i want to look up the weapon's stats as well as the character wielding the weapon's stats in order to compute the damage dealt to me

my naive approach would involve just making sure the weapon is actually a child of a character first of all, getting access to that character's game object by running up the tree and then calling GetComponent on that object to get the information i need

[west lotus]

You could simply store a reference to the character in the weapon itself and just get the weapon component

Then you can have a lets say Calculate damage method on the weapon and just use that

[candid trench]

I have a function that's supposed to be using SAT to detect if two polygons are intersecting/overlapping. But i cant seem to figure out the correct if-statement
https://pastebin.com/2F5LyJd1

[languid crane]

Just out of curiosity, what are you doing here? Are you calling methods on other objects when the trigger happens on this object?

[night harness]

Yes, for organisation I have a object per trigger but their all calling the same OnTrigger functions on the main object

[languid crane]

i see, very interesting, thank you!

[night harness]

Ideally I would just call those OnTrigger functions directly but they have protection to stop that for probably good reasons but it does make it more annoying

[languid crane]

yeah, I remember trying to call ontriggers from other classes a long time ago, its cool to see a way to do it

[orchid bane]

How does scripting differ from common programming?

[night harness]

In a majority of conversations those terms are used interchangeably

[orchid bane]

but programming isn't scripting

[potent sleet]

Scripting is typically used for automating tasks or writing small programs, with interpreted languages and a focus on simplicity and readability.
Common programming is used for complex software development, with compiled languages and a focus on control and robustness.

[thorny sparrow]

Hello. In my game, I am trying to achieve an effect where Object A and B start off at 100% scale but when Object A is approaching 0% Object B will be approaching 50%

Anyone know how I can do this?

[quartz folio]

y = Mathf.Lerp(0.5f, 1, x)

[thorny sparrow]

thank you I will try it

[cursive hemlock]

can anyone tell how close codingame.com is to real game programming problems?

[swift falcon]

is there any way to call Unity API (setactive, getcomponent, etc.) from a intepreted language (such as LUA) ?

[cold parrot]

Not directly, no, but you can make a runtime for that language that facilitates it

[swift falcon]

Ok thanks. Can you provide me a example to understand how to do that?

[winged mortar]

Multiplying and adding noise together are both valid options, what you could try is snapping the noise (or rounding it really) such that for mountainous areas the noise component would be considered where as for flat areas it wont

The noise function should be scaled such that the result makes sense for the use, I would expect the biomes to not change too frequently, and therefore use some scaled parameters, but if you for example want to add a little bit of texture to places (high variation, low in intensity) you'd do the exact opposite

Finding the right aprameters is 80% of the work

[cold parrot]

thats beyond the scope of a discord chat

[potent sleet]

can you give an example ?

[cursive hemlock]

No? What kind of example?
If you know the Page. Is this what one can expect from programming a Video Game?

[potent sleet]

you asked about it, you can't give an example of what this site provides in terms of programming problems or watever?
not trying to sign up just to know this..

[thin aurora]

Also, ask in #💻┃unity-talk instead of here

[timid crater]

Hello, I'm trying trace points for the first time, it's saying that the message is shown in the output window, where can I find it?

If that means the console window in Unity editor, I checked and it wasn't there

[somber nacelle]

https://learn.microsoft.com/en-us/visualstudio/ide/reference/output-window?view=vs-2022

[timid crater]

Gotcha, thanks!

[rough shuttle]

How to replace a component in inspector to a child component?
example I have a weapon monobehave attached.
I made an inherited script called weaponMelee
I want to replace weapon to weaponMelee in the inspector without having to drag and drop all the fields

[somber nacelle]

you can copy the component values from the context menu, i would assume it would allow you to paste them onto the inheriting component

[swift falcon]

I need to add external code to my game at runtime. For Windows, I create an asset bundle of the dll and then when I need it I load the bundle and do assembly.load and it works. But I dont know how to do if for iOS. Any ideas?

[quartz vessel]

I am integrating google ads in my unity project but when i want to create a build it gives the classpath error.
Anyone can help me ??

[somber nacelle]

#📱┃mobile (like was suggested in the other channel you asked in)

oh you already posted there. in that case you shouldn't crosspost

[pastel bluff]

how to make a plane detect collisions from both sides? it's not exactly a plane, but a flat mesh generated in a script.

[somber nacelle]

give it a box collider?

[pastel bluff]

I'm just checking if there is a solution without having to double up the plane to the other side

[somber nacelle]

yes, give it a box collider

[pastel bluff]

a box collider would be just a patch up, unfortunately

[somber nacelle]

well mesh colliders only collide from one side of each face. box collider for this situation would just be a better option. the mesh is flat anyway, right?

[pastel bluff]

it's a mesh in a complex shape

not just a box, unfortunately

I can make it to have two faces in code, just checking if there wasn't an option to make collisions against back faces

[somber nacelle]

https://docs.unity3d.com/Manual/class-MeshCollider.html
there is not

[pastel bluff]

Thanks! 🙂

[rustic ember]

What does this mean?

My scriptableObject can't be loaded

[somber nacelle]

have you resolved the compile errors?

[rustic ember]

Yep

Is it because I have no scripts deriving from this one?

I haven't made them yet

[somber nacelle]

well that's one reason. another is that you cannot attach a scriptable object as a component

[rustic ember]

Alright. I'm not trying to attach it as a component. I am simple creating an asset with it

[somber nacelle]

ah, your screenshot was so cropped it looked like it was attached to a gameobject. but yeah, you cannot have an instance of an abstract class so no instances of that SO

[rustic ember]

Alright. Thank you 🙏

[pastel bluff]

I just fixed moving the raycast and reversing it 🙂

[rustic ember]

I am not sure why, but I can't assign an instance of this script to an AbilitySO field

[thin aurora]

is there a warning or error?

[rustic ember]

Yeah.

[thin aurora]

Does it work if AbilitySO is not abstract, and you change its abstract methods to be virtual?

Do the file names of HealAbility and AbilitySO match the names of the actual class? Pretty sure this is the reason of the warning?

[rustic ember]

You're right

I changed the file name

It tried to tell me

Thank you

I always feel so stupid when that happens 😪

[sour trench]

How do you prevent a blocking collider from interfering with a trigger collider on the same gameobject? Feels like I've tried everything at this point but nothing works as long as the blocking collider is there.. either on the same object or as a child, or reversed so trigger is a child and blocker on the parent. I've also tried using layer masks when raycasting to exclude the blocking collider's layer like RaycastHit2D hit = Physics2D.Raycast(ray.origin, ray.direction, Mathf.Infinity, ~(1 << LayerMask.NameToLayer("Ignore Raycast"))); but same result. Also this approach won't work anything since hovers are done using OnMouseEnter and OnMouseExit in each Interactable script...

I need to be able to hover and click the ENTIRE crate while only the bottom of the crate blocks the player's movement. Any ideas? 😫

[rustic ember]

Yes. Go into your project settings (into the Physics2D)

Here you can change the layers that collide with each other

(it's the grid at the bottom right)

.

How can I stop an IEnumerator from within the IEnumerator? Does it automatically stop when it reaches the end?

[somber nacelle]

yes, you can also use yield break; to end it early

[tame zealot]

public int PuzzelControllerIndex;

    if(PuzzelControllerIndex == 1)
    {
        /*Play animation*/
    }

    if(PuzzelControllerIndex == 2)
    {
        /*Play animation*/
    }

hello is there a way i can do somthing like this, I still cant figure it out : p

[sour trench]

@rustic ember Hmm never used this. I put the trigger on "Default" and the blocking collider on "Blockers", and then disabled the collision between them as seen in the image but I don't really see an improvement :/

[thin aurora]

https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1?view=net-8.0

Or a basic Array

Store the animations, and get is by index the same way you do there.

[somber nacelle]

use the Animator with proper transitions set up and you can just pass the index as a paramter to the Animator to transition to the correct animation much easier

[rustic ember]

The idea is: one layer for the "Scene Object" and one for "Clickable". Disable the collisions between these two

Then when you do your raycast you want to use a layermask to only hit the clickable

Although, you probably don't want to use a Raycast for detecting clicked objects

Do this instead: ```cs
[SerializeField] private LayerMask clickMask;

        if (Input.GetMouseButtonDown(0))
        {
            // Left click detected
            Collider2D clickedCol = Physics2D.OverlapPoint(Camera.Main.ScreenToWorldPoint(Input.mousePosition, clickMask));

            // Do some stuff
        }```

@sour trench

            public class PathTile
            {
                public TileController controller = null;
                /// <summary>
                /// Whether or not the tile is walkable.
                /// </summary>
                public bool isWalkable = true;
                /// <summary>
                /// Where in the grid the tile is located.
                /// </summary>
                public Vector2Int gridPos;
                /// <summary>
                /// The distance traversed to get to this tile.
                /// </summary>
                public float cost;
                /// <summary>
                /// An estimate of the distance to the destination.
                /// </summary>
                public float distance;
                /// <summary>
                /// Equals cost + distance.
                /// </summary>
                public float costDistance => cost + distance;
                /// <summary>
                /// The tile we came from to get here.
                /// </summary>
                public PathTile previousTile;
            }```
I have a list of type PathTile. How would I go about creating a list from the gridPos of each PathTile? Preferably with a lambda expression

[sour trench]

@rustic ember Just found what the issue is, there a freaking trigger collider over the crate that's stealing the clicks... And of course the one crate I've been trying this with is inside of it 😠

[rustic ember]

🤣 Well... I'm glad you found the issue

[hollow stone]

Select?

[rustic ember]

Possibly. What is that?

[hollow stone]

var newList = yourContainer.Select(x => x.gridPos);

[rustic ember]

Great! Thank you 🙏

[wraith vector]

When I add a button listener:

                    () =>
                    {
                        UnEquip(laser);
                        OpenLaser(oldItem);
                    });```
if the function "OpenLaser" has some static variable that has changed after adding the Listener.
When I press that button, will the function use the old static variable value or the new one?

if so, is there a way to make it use the new one?

[steady moat]

It will use the new one. To use the old want, you would need to do:

var old = MyValue;

GetComponent<Button>().onClick.AddListener(
                    () =>
                    {
                        UnEquip(laser);
                        OpenLaser(oldItem, old);
                    });

That given it is a non reference type such as int or float.

[wraith vector]

Ty for the info, I guess somewhere else in my code is changing the variable to the old value

Nvm, I guess I found what could be the issue

Always good to discuss the code lol
makes me rethink about the whole process

[heady iris]

the exact behavior of anonymous functions can be very surprising

for example

for (int i = 0; i < 10; ++i) {
  CallMeLater(() => Debug.Log(i));
}

they will all log "9"

because they all captured the same variable

this was very surprising to me

[oblique badger]

I need some help solving this annoying thing, basically I cant click any buttons on my UI, I'm not missing an event system nor am I lacking any components in my canvas

[heady iris]

If you create a button, can you click on it?

GameObject -> UI -> Button (Text Mesh Pro)

(i forget the exact name there)

[oblique badger]

Ah "button" is missing

[heady iris]

as in, your own button objects were missing the Button component?

[oblique badger]

Seems like there was an error in the packages?

Ah

That was dumb of me, Yes I can click on the button that I created

Inside the canvas and on the same gameobject as the other buttons seems I cant

[heady iris]

Show me the inspector for one of your own buttons.

[heady iris]

well that looks reasonable

What if you make that new button you made a sibling of one of the old buttons that's not working?

so, put it next to one of them in the hierarchy

Something might be blocking the click

[oblique badger]

I'm a pure dumbass thanks mate

[steady moat]

They all captured (i) which then became 10.

[heady iris]

yea

i just kinda figured they'd capture by value (which is the default for a c++ lambda, iirc)

[dim spindle]

Its not dumb its lack of experience, please dont beat yourself up lol

[heady iris]

we all have dumb-of-ass moments :p

[orchid bane]

Does OnTriggerEnter work when rb .isKinematic?

[knotty sun]

no

isKinematic means 'without physics' and triggers/colliders work with physics

[heady iris]

eh?

they work fine

[orchid bane]

👀

[heady iris]

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

consult this table

Note that two kinematic rigidbodies will NOT cause collision events with each other

but two kinematic rigidbodies WILL cause trigger events

[orchid bane]

Cool

Thanks

Am I correct in that the table says that 2 kinematic rigidbody trigger colliders will trigger each other?

[heady iris]

Yep, that's what it says.

[tame zealot]

When an object is inactive and active again, can it detect collision?

[heady iris]

once the game object is set to be active, it will start participating in physics again, yes

I'm not sure exactly when that happens

[tame zealot]

so does it work with trigger enter? I've been trying to make it work but doesn't seem so.

[static matrix]

any tips on optimizing rendering?

[orchid bane]

looks like a nice question for google

[heady iris]

super broad question :p

[static matrix]

good one
sorry sometimes its just "Everyone knows how to do this but I don't because I missed whenever they were all told"

But ok ill look elsewhere

[heady iris]

it depends on whether it's a 2D/3D project

and on what render pipeline you're using

[static matrix]

3d project

[orchid bane]

I think part of the problem with googling something for Unity is that part of the info is outdated, written in incomprehensible words or not even discussed. Also docs are rarely helpful for more advanced topics

[heady iris]

yes

unity has a serious problem with documentation for its newer systems

[static matrix]

I don't think im using URP but I might have it on but not being used

[orchid bane]

Nice

[hexed pecan]

Frame debugger

[heady iris]

you can check by looking at the project settings

[knotty sun]

See, this is the problem, you should know what you are using

[tame zealot]

Here's how I have it set up, they player holds E and after that the book that I place is Active and I have a collider near the book slot with a script when it collides with the book shows a debug.log :p

[heady iris]

and yes, that would be a useful place to start from..

[static matrix]

alright let me check

[knotty sun]

you should not need to check,

[static matrix]

yes, but in this scenario, as I had not yet checked, it is logical that to know what I am using and how to proceed, I do in fact, need to check

ive removed cinemachine and URP as I'm not using them

let me mess with more settings

[heady iris]

um

just removing the URP package would leave your project in a very interesting state

[knotty sun]

this is a recipe for disaster

[static matrix]

its still working

I never used it for anything

[heady iris]

let me rephrase this with another metaphor

if I removed the transmission from my car, there would be very adverse effects

i guess it could still roll down a hill

I'm actually not sure what happens if you just rip out the URP package

[orchid bane]

I believe Unity has a guide regarding how to switch to URP and back

[heady iris]

I've converted a project from HDRP to URP, and everything was...interesting in the middle of the process

[static matrix]

i mean i imported it from the package manager, never touched it, and then uninstalled it

[heady iris]

i guess it might be ok that way..

if the project was not created from the URP template

[static matrix]

which tier does the graphics use by default?

[soft shard]

Changing between pipelines has never been a smooth process for me, to the point its easier to simply make a new project in the pipeline you want and copy your assets and scenes over, there are specific SO references that can break things if not linked correctly, but I guess just removing a pipeline would default back to "vanilla", assuming ALL pipeline references are cleaned up

[heady iris]

in my case, it wasn't too rough

we had a few materials to update the shader on

and I had to go copy the URP assets from the template project

this was a game jam game, so everything was already kind of wonky, lol

The hard part was replacing some post-processing effects

had to figure out how to make render features, since we didn't have the version of URP with the handy full screen pass render feature

[soft shard]

Changing pipelines during a game jam sounds like a... Bold choice, but im glad it wasnt too bad and you didnt have any package errors or code that depended on the pipeline

[heady iris]

oh, this was after the jam

we realized that we were using zero HDRP features and that it was making the game run horribly

we were fixing it up for GDC (our university had a few teams from the game development department travel there)

i did have fun learning how to do custom render features during a solo jam recently, though :p

that ate a good 90 minutes

[soft shard]

Oh nice! Only 90 minutes 😉

[heady iris]

And a mild amount of swearing

[ember ore]

Is there any free outline shader we can use?
All i can find are either not working anymore... or are paid

[tame zealot]

Nvm i got it to work with a simple bool : p

[lethal plank]

anyone know how to make this scope effect?
all i found is duel render scope

[ionic hawk]

Can anybody help me with this error message? I tried to add an rewarded ad and I got stuck on it.

[heady iris]

well, it sounds like placementId isn't correct!

[ionic hawk]

`using UnityEngine;
using UnityEngine.Advertisements;

public class AdsInitializer : MonoBehaviour, IUnityAdsInitializationListener
{
[SerializeField] string _androidGameId;
[SerializeField] string _iOSGameId;
[SerializeField] bool _testMode = true;
private string _gameId;
[SerializeField] RewardedAdsButton rewardedAdsButton;

void Awake()
{
    InitializeAds();
}

public void InitializeAds()
{

#if UNITY_IOS
_gameId = _iOSGameId;
#elif UNITY_ANDROID
_gameId = _androidGameId;
#elif UNITY_EDITOR
_gameId = _androidGameId; //Only for testing the functionality in the Editor
#endif
if (!Advertisement.isInitialized && Advertisement.isSupported)
{
Advertisement.Initialize(_gameId, _testMode, this);
}
}

public void OnInitializationComplete()
{
    Debug.Log("Unity Ads initialization complete.");
    rewardedAdsButton.LoadAd();
}

public void OnInitializationFailed(UnityAdsInitializationError error, string message)
{
    Debug.Log($"Unity Ads Initialization Failed: {error.ToString()} - {message}");
}

}`
This is my script and only think that I added was rewardedAdsButton.LoadAd(); but its not green as other functions so why can that be?

[knotty sun]

which build platform?

[ionic hawk]

Android

[knotty sun]

so I guess _androidGameId is null or empty

[ionic hawk]

oh I am an idiot. I forgot to change the build platform

THANKS

[hexed pecan]

Squad doesnt use dual render scopes, it just makes your FOV low so the whole screen zooms in

But if you mean the scope shadow/vignette and the reticle, then you need to make some shaders most likely

[stone rock]

Hello, what would be a good way to check where i am creating a float with NAN? I don't have any divisions that can cause a NAN but have no idea what else it can be that causes it

[heady iris]

you'll need to trace it back to the source

one possibility: Mathf.SmoothDamp with a timescale of zero

[stone rock]

I know the variable that get's a nan and the only thing it is using is

_slipZ = _slipZ + ((_localVelocity.z - _slipZ) * (Mathf.Abs(_localVelocity.z) / 0.01f * deltaTime));

[hexed pecan]

There ya go, your timescale is probably 0 so deltaTime is also 0

[stone rock]

i don't have a time scale of 0 though

[hexed pecan]

So youre dividing with 0.01f * 0

[stone rock]

but i will add my little check

[hexed pecan]

Maybe deltaTime is 0 at the start of the game. Not sure

[heady iris]

are you confident that there wasn't already a NaN by this point?

log everything that line uses

[stone rock]

i am going to check the localvelocity variable

but deltaTime should be correct

[heady iris]

"should be" is not a substitute for "is" (:

[stone rock]

This is what i do for that

            float deltaTime = Time.fixedDeltaTime;
            float deltaTimeInverted = 1.0f / deltaTime;

i pass it from another script to that

It's also strange since it only happens for 1 because i am doing it twice

            // SLIP Z

            //-> SlipZ = SlipZ + (SlipZMax - SlipZ) * (abs(_localVelocity.z) / relaxationLength * deltaTime)
            _slipZ = _slipZ + ((_localVelocity.z - _slipZ) * (MathExtensions.SafeDivide(Mathf.Abs(_localVelocity.z), 0.01f * deltaTime)));

            // SLIP X

            //-> SlipX = SlipX + (SlipXMax - SlipX) * (abs(_localVelocity.x) / relaxationLength * deltaTime)
            _slipX = _slipX + ((_localVelocity.x - _slipX) * (MathExtensions.SafeDivide(Mathf.Abs(_localVelocity.x), 0.01f * deltaTime)));

The X variable never has this issue

[fathom patrol]

I'm trying to store a certain vector and string before changing a scene, and then having the position of my player object be updated, however even through after the scene transition I can get the right variables out of storeTransform and storeDirection, they are not being updated.

Vector2 storeTransform = tp1PlayerTransform;
string storeDirection = tp1PlayerDirection;
animator.SetBool("isMoving", false);
SceneManager.LoadScene(teleporter1Location);
transform.position = new Vector3(storeTransform.x, storeTransform.y, 0);
playerDirection = storeDirection;

Is there something I'm missing?

[heady iris]

LoadScene immediately switches the scene and destroys everything from the old scene

You need to store that data in static fields and then retrieve it from a component that lives in the new scene

[fathom patrol]

I see, I'll try that

Though when adding something like print(storeTransform) after the LoadScene, it prints the correct result, why can't I update transform.position if my variables are apparently still there?

[heady iris]

oh, I see

it loads the scene in the next frame

https://docs.unity3d.com/ScriptReference/SceneManagement.SceneManager.LoadScene.html

so it will finish running the function

...but that will be affecting stuff in the old scene

[gleaming sparrow]

hi im having some trouble writing a car mesh deformation script. i want to be able to shoot balls at cars and those balls should dent the car. i want the vertex to dent in the same direction as the ball's velocity. i currently have this code: im doing something wrong but i cant find out what. anyone any ideas?

if (distanceFromCollision < deformRadius && distanceFromOriginal < maxDeformDistance)
                    {
                        float distribution = ((deformRadius - distanceFromCollision) / deformRadius) * damageDistribution;

                        Vector3 deform = transform.TransformPoint(vertexPosition);

                        if (collision.rigidbody) deform += collision.rigidbody.velocity.normalized * distribution;
                        else deform += -transform.root.GetComponent<Rigidbody>().velocity.normalized * distribution;

                        Vector3.ClampMagnitude(deform, distanceFromOriginal - maxDeformDistance);

                        verts[i] = addedDamage * damageMultiplier * transform.InverseTransformPoint(deform);
                    }

[heady iris]

what is it doing wrong?

[gleaming sparrow]

easier to read

[heady iris]

I'm guessing the deformation is in the wrong direction

[fathom patrol]

ah, i see, thanks

[gleaming sparrow]

yeah at first it kept pointing the deformation towards the parent origin position

[heady iris]

what is vertexPosition ?

[gleaming sparrow]

its the position of the specific vertex im currently looking at (this is in a for loop foreach vertex)

vertex position is given in local space

[heady iris]

so you convert that to world space

[gray vessel]

This doesn't work, unfortunately. Do you know any other workarounds?

[heady iris]

ah, I see the inverse transform at the end

I would start by applying a constant deformation

like, just Vector3.right

[gleaming sparrow]

yeah i tried to temporarily take it out of localposition

[heady iris]

see if it behaves as expected

[gleaming sparrow]

aight ill give it a try

both Vector3.right and up, and transform.right and up seem to point the same direction

i think something is off with the (inverse)TransformPoint

[dense canyon]

Im having trouble with web requests, here the only log that gets to the console is the first 'Hello', how can I fix this?

[glossy basin]

Thanks for your response, I took another aproach which worked really well and it turns out it is what minecraft actually uses; I made a biome map and used an animation curve with keys at the positions the biome map can take, and then I added a value of my taste to each of the keys that will basically determine the height of a place, I got some natural looking terrain now!

[hexed pecan]

Then the transform is not rotated at all

[spare badge]

How can I detect unclamped mouse movement magnitude while the cursor is locked?

[hexed pecan]

Old or new input system?

[spare badge]

Either. I'm currently using the old input system for testing, but intend to upgrade to the new one once I've finished experimenting. For now, just the old one.

[hexed pecan]

Input.GetAxisRaw("Mouse Y") etc should work even when your cursor is locked

[spare badge]

But doesn't that clamp the value between -1 and 1?

[hexed pecan]

Nope, what makes you think that?

Is it the Raw part? GetAxis and GetAxisRaw should work the same with mouse input

[spare badge]

You're right. I'm sorry, I must have been confusing it with joystick controls for some reason.

[gleaming sparrow]

when i collide with an object, will the colliding object's velocity still be the same in OnCollisionEnter or will the velocity be already be changed because of being stopped by the collision

like is the change in velocity in the other object handled before or after OnCollisionEnter

[hexed pecan]

Collision messages are sent after the collision already happened so the velocity has already changed

collision.relativeVelocity exists btw, if thats useful for you

[gleaming sparrow]

hm yeah i finally see what u mean

[gleaming sparrow]

ill check out what it means 1 sec

thx, i think this works

[radiant marten]

can someone help me understand the rect parameter for Sprite.Create(texture,rect)? Assuming I'm trying to create a sprite at sprite 3, I use Rect(32,16,16,16) yet it looks like it's drawing sprite 7 instead.

the manual's description kind of confuses me as well

The rect argument is defined in pixels of the texture. A Rect(50.0f, 10.0f, 200.0f, 140.0f) would create a left to right range from 50.0f to 50.0f + 200.0f = 250.0f. The bottom to top range would be 10.0f to 10.0f + 140.0f = 150.0f.

[heady iris]

Rect specifies the corner and the size

can you link me to the docs for that?

[radiant marten]

https://docs.unity3d.com/ScriptReference/Sprite.Create.html

[heady iris]

the rect sounds reasonable

what happens if you do Rect(32, 0, 16, 16) instead?

oh right

the Rect is specified by the top left corner

it should really say "the top to bottom range" to make it more obvious

[heady iris]

so, I would expect this to give you to the 3

[radiant marten]

new Rect(32,16,16,16);

new Rect(32,0,16,16);

[heady iris]

wait, I thought you said that this produced a 7

ah

right, the origin is in the bottom-left for sprites, then

[radiant marten]

yes, but when I tried texture.height - sy I was getting out of bounds errors

[heady iris]

Ah, yes, ignore this: this is for GUI space.

[heady iris]

you need to also subtract the height of the sprite you want

[radiant marten]

actually just figured that out haha

[heady iris]

i love coordinate spaces

[candid forge]

ok, quick question about OnMouseDown. i Have a script Tile, which holds a 2d square box gameObject amongst a bunch of other things, this gameObject has a component which has a OnMouseDown function. I want to call a function from the Tile script which holds the current gameObject and the component it's attached to. How could i do that?

[radiant marten]

thanks a bunch!

[heady iris]

no prob

[heady iris]

So you want to call a function on the tile that contains the object that was clicked on?

The object needs to get a reference to the tile

The Tile could tell the object about itself during setup

[candid forge]

makes a lot of sense, i will try it

it works, thank you

[scenic hinge]

You are aware that a specific component always has access to the gameObject it’s attached to right

[candid forge]

the gameobject is attached to a script, and the gameobject has no reference to the script it's attached to

[scenic hinge]

this gives a reference to “this” component

And gameObject gives you a reference to its parent gameObject

If your goal is to call a command from another script on click using that class

You can add [SerializeField] to the field “parent” on script “OnClick” and drag and drop it in the inspector

if you want to create links between scripts that’s the way you do it

[heady iris]

define "Attached"

Do you mean that the component (that's defined by that script) has a field of type GameObject?

[scenic hinge]

I think he is suggesting his GameObject has 2 scripts attached “Tile” and “OnClick”

[candid forge]

no

[heady iris]

ah, you already did it :p

[thin aurora]

You can just Navigate to the Tile using GetComponent and possibly Transform.parent if a parent component exists. Not sure what this complex confusion is all about.

[scenic hinge]

I think parent isn’t really what he wants?

I think he’s got it anyways

[thin aurora]

Hence "possibly". I understand it's part of the same game object

[candid forge]

i modified it a bit

[scenic hinge]

I thought he was trying to do something else

[candid forge]

i want to dinamically do things instead of using the editor

[scenic hinge]

Why?

[thin aurora]

Advice against this. Don't expose a public field or a property with a public setter.

You're literally using AddComponent here, why not GetComponent?

[scenic hinge]

Why use Unity if you don’t want to use the editor

[candid forge]

yeah, for now i'm just testing to see if my logic works

[candid forge]

because of the renderer and a lot of other things

[thin aurora]

You're literally using AddComponent here, why not GetComponent in the OnClick?

The whole point is getting to the Tile

It's part of the same Gameobject

GetComponent is the answer

[candid forge]

it's not

Tile is not a component of anything

[scenic hinge]

But why not use the editor is the real question

[static matrix]

can I make navmeshes at runtime? Like for a procedurally generated level?

[heady iris]

Tile is just a blob of data.

It is not a Component.

[thin aurora]

#archived-code-general message

i Have a script Tile, which holds a 2d square box gameObject amongst a bunch of other things, this gameObject has a component which has a OnMouseDown function. I want to call a function from the Tile script which holds the current gameObject and the component it's attached to.

[heady iris]

I think the confusion is because "script" usually means "monobehaviour"

[fluid swan]

Does anyone know how to make an ai chase you but don’t go through walls

[thin aurora]

Then what is Tile?

[scenic hinge]

I don’t think there is any confusion, I think this is just a weird way to create a literal 1 line solution

[heady iris]

it is defined right here

[steady moat]

Pathfinding

[scenic hinge]

Google A* path finding, and 2DBoxColliders

[thin aurora]

Where is Tile referenced though

[fluid swan]

How do you do that do you need a script

[static matrix]

yeah its navemeshes, can I do navmeshes at runtime

[candid forge]

it's because i use a List of tiles and i want to be sure whatever is in that list is Tile instead of a GameObject, which could be anything

[steady moat]

https://learn.unity.com/tutorial/unity-navmesh

[fluid swan]

Thnx

[scenic hinge]

To what benefit does this provide?

[steady moat]

https://learn.unity.com/tutorial/unity-navmesh

[static matrix]

k

[heady iris]

i dunno, you want to have a list of tiles

sounds pretty reasonable

[scenic hinge]

He’s trying to avoid using the editor

[heady iris]

not everything has to directly exist in the scene as a component

[candid forge]

the way my code is structured it makes it easier to work with

[scenic hinge]

But why tho

[heady iris]

same!

[candid forge]

because i want to code

[heady iris]

I like to make as much as possible automatic

I do not enjoy dragging stuff around in the editor if it could be easily made automatic

[candid forge]

yeah, i'm making it automatic, through code

[scenic hinge]

Then make it automatic, in the editor, it makes testing very easy

They are tools provided for a reason

[candid forge]

i am also new to unity and very used to only using code and still trying to wrap my head around the editor and stuff

[candid forge]

i can easily create my own tests

[scenic hinge]

Again, you could’ve solved this with literally one line of code if you did it through Unity, or you could’ve used Unity’s built in tile solution

[heady iris]

what is the "one line of code"?

i am not following you

[candid forge]

unity tiles are useless since the only similarity to them is they have the same name

my tiles are not related

[heady iris]

i'm guessing this is something like chunks of a level?

[scenic hinge]

Add mono behavior to tile, add it to the object that you are “OnMouseDown” and literally you can do `OnMouseDown() => GetComponent<Tile>().WakeUp()

[candid forge]

yes, 10x10 chunks and i want to load and unload them easily, each square(tile) can be clicked to do something

if i have simple data types unlike gameobjects which i can create and delete on a whim my life is easier

thank you tho, idk how innefficient or efficient this is, but i'm not making a performance intensive game anyways

[heady iris]

I think it is reasonable. Perhaps the Tiles could get turned into components that exist in the world, but I don't see a life-or-death reason to do that right here (without more context, at least)

[static matrix]

do I need to download all the navmesh components or are they built into unity now?

[heady iris]

there is navmesh stuff built in

but you should install the AI Navigation package

it introduces navmeshsurface components and other new stuff

[static matrix]

oki

thats not built into the registry right

[winged mortar]

Looks stunning! Good stuff!

[heady iris]

I think it's visible now?

[static matrix]

I didnt see it, but I probably did something wrong

[heady iris]

Ah, it might not be out of experimental for your version of unity

I see this in 2022.2.x

[static matrix]

oh lol

im in 2021

[heady iris]

you should be able to install com.unity.ai.navigation by name

[static matrix]

nice

how

I dont mess around much with packages

Ill just download it off github

[heady iris]

i would suggest doing it through the package manager

does 2021 not have the "install by name" option?

[static matrix]

let me check

[static matrix]

ah

ok

one mo

[potent sleet]

no it's not on github

that's old

use the one from package manager

[potent sleet]

show what you wrote in package name

[open lake]

Hey I have a camera which is rendering to a render texture and this render texture is assigned to a raw image, so essentially, camera output is going to a raw image. Problem is, this raw image can change its width and height on the screen. So when the raw image width is increase, it looks distorted and stretched. How do I fix this so that we can dynamically have this system working

[hexed pecan]

Are you manually changing the RawImage's size or is some UI component doing it?

[open lake]

The Raw Image has stretched anchor presets but also theres offsets that offset it from each side, so when the game window is resized, the RawImage also changes

[hexed pecan]

Never used this but maybe it helps:
https://docs.unity3d.com/Packages/com.unity.ugui@1.0/manual/script-AspectRatioFitter.html

[open lake]

Looked into this already, turns out this doesnt work

altering W and H values seemed to work but I don't know what these W and H values are and how to calculate them w.r.t. an aspect ratio

[hexed pecan]

w.r.t.
?

[open lake]

with respect to*

my bad

[hexed pecan]

I usually figure out abbreviations but that one was tricky lol

Aspect ratio is just width/height

[open lake]

Yeah, but the above image is from the camera's inspector. My game view is currently in a 16:9 ratio but I don't know why W = 1 and H = 1 works properly

[static matrix]

sorry my teacher dragged us out for a walk, I'll show now

[hexed pecan]

It's in Viewport coordinates, which are always in the 0..1 range

[open lake]

if W = 1.6 and H = 0.9 that would've made sense since thats my screen's aspect ratio

[static matrix]

com.unity.ai.navigation @potent sleet

[open lake]

I see

[heady iris]

oh wait

was it not even available until 2022?

[static matrix]

maybe

[heady iris]

no, it was available back in 2019.4...

[static matrix]

odd

idk why it isnt showing up

[heady iris]

it ought to just be com.unity.ai.navigation

[static matrix]

let me look it up, maybe it changed names

ohhh It might have logged me out

let me log in again

worked now

thx

just had to read the error code lol

hmmm ive imported it but visual studio doesn't recognize it

[heady iris]

you may need to regenerate project files

preferences > external tools

[static matrix]

kk

you are the best!

let me close and re-open the project

still can't find it...

[unborn flame]

i dont understand why tolist has a error im using linq?

[simple egret]

What does the error say?

Nevermind lol

GetComponentInChildren returns one object

You need the version that returns multiple, GetComponentsInChildren

(notice the "s" to "components")

[unborn flame]

OH

thanks i would have been sitting here for hours looking for that

[static matrix]

I just had the import wrong nvm

[ionic socket]

is there a way to make a variable only accessible to select outside classes? IE, I have a GameAction class that I want to use to encapsulate gamestate changes (along with undo information), but the gamestate itself I want to store within my GameManager class. Is there a way to enforce this?

[leaden ice]

The best you can do is make it internal and it will be accessible only to other classes in the same assembly

[ionic socket]

I haven't messed with internal/assemblies before. If I'm doing a "server authoritative" 2-player setup, would it make sense to put GameManager and GameAction in their own assembly for that purpose?

[leaden ice]

probably not

[heady iris]

you need to read the errors closely!

an error that says "I can't use type X as type Y" should be a signal that you are misusing something

[hearty sphinx]

today i learned c# isn't the only language that unity supports for scripting

i wonder why i don't see the others often

or at all

[leaden ice]

C# is the only language Unity supports

since ~2017

[weary marlin]

how do i properly plug build of an external dll into the unity editor pipeline, so that it runs dotnet build and copies the output files into the Assets directory? the solution is in the same repository but outside of the unity project directory

i currently have a build target in the dll project, but ideally since its a dependency, it wouldnt know about unity and unity should handle the import.

i tried researching asset preprocessors, [InitializeOnLoadMethod] attribute and IPreprocessBuild but none of that seem to work like i want them to

[hearty sphinx]

you mean there were other languages supported, but they were dropped since then?

[leaden ice]

yes

[hearty sphinx]

i see, thanks

[heady iris]

you used to be able to use JS

terrifying

[knotty sun]

guess what, you still can, at least the emscripten version of it

[heady iris]

AAAAAAAAAAAAA

[knotty sun]

yep, you wanna talk between Unity WebGL and the browser, emscripten is your friend

[heady iris]

oh wait, isn't that just how to compile to WASM

[knotty sun]

nope

[lament bloom]

im still kind of confused about how to use different colliders on the same object for different purposes

[heady iris]

i'd just put them on their own game objects

[lament bloom]

and then for scripting purposes

[leaden ice]

generally by putting them on different layers

[lament bloom]

you would just have a different script/component for each collider's object?

[heady iris]

I'm not aware of a way to differentiate between them, unless they collide with mutually exclusive sets of layers

[lament bloom]

okay maybe im approaching this wrong

[heady iris]

what do you want to do?

[lament bloom]

I have an enemy npc who I want to give a large sphere collider that determines whether they "see" the player, as a result they should draw their weapons

but I also want them to have a smaller capsule collider, which actually determines where they can be hit by a weapon

is there a better way to do this?

[leaden ice]

separate trigger collider on a child object on a separate layer with a script on it for detecting the player

[lament bloom]

Hmm, okay

It's a little unfortunate I feel that this needs its own script since but it's not that inconvenient

[leaden ice]

i mean depending on what's going on if there's no other trigger interactions happening with the enemy you don't necessarily need a separate script

as the parent object (if it has a Rigidbody) will receive the OnTriggerEnter from a child collider

[ashen yoke]

yes use overlap sphere for vision

and in general for queries

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

[lament bloom]

oh interesting

[ashen yoke]

its a single player?

[lament bloom]

for now yeah, if it were multi/network would this be unreasonable?

[ashen yoke]

if its single/low amount of players you can get away with just checking distance

[oblique kraken]

can anyone help me with this ?

[west lotus]

Error says how to fix it

[oblique kraken]

but I can't find "settings"

[lament bloom]

Project Settings ...

[west lotus]

Project settings

[oblique kraken]

sorry I feel dumb, but I can't find it

[lament bloom]

any insight on how good/bad of an idea it is to run this in Update() ?

[ashen yoke]

just do it and dont worry

until you have 500+ enemies on the map this wont matter

[lament bloom]

👍

[ashen yoke]

nonalloc version of physics queries is as fast as it gets from unity api

more performant solutions would require you to write custom code

tho a distance check would outdo all of those

[ashen yoke]

tho running it in update is sub optimal in any case

use fixed or custom ticker

[heady iris]

yeah -- for example, I have my enemies check once every second or so

[ashen yoke]

30-15 times a second is fine

[proper pier]

Hey, if I want to simulate a taught rope in unity, can I just apply a force towards a fixed point?

[odd pecan]

Any tips on how to export a mesh as an fbx file in a standalone application? I know there is a package called FBX Exporter but from what I understand I can't use it in a standalone application.

[leaden ice]

wdym by "in a standalone application"? You mean a Unity build?

[odd pecan]

yeah

[leaden ice]

I don't think Unity has support for that in any form

you'd have to find some open source library for it or something

[unborn comet]

Hello, I really need help. I want to create a Crypto Trading Simulation Game just do not know how I should do it every ten seconds or so the share money amounts adjust and the wallet also adapts to it. I would be happy if I could get help as I found nothing that could help me.

[odd pecan]

unlucky. Right now I'm trying to export it as an .obj

[heady iris]

I seriously doubt you found nothing that could help you do something every ten seconds.

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

[unborn comet]

i ned help how i make it withe the wallet

[hollow stone]

Show some code what you've done so far.

[unborn comet]

ok

[cinder monolith]

which is better visual studio code or visual studio community

[heady iris]

Visual Studio is the name of the software

community is just a kind (that's free)

[cinder monolith]

oh

[heady iris]

unity officially supports Visual Studio, so I would go with that

[cinder monolith]

well visual studio code is also free

ook

[heady iris]

yeah

I use Code myself

since I already use it for many other things

but it's not officially supported

[stone crypt]

I think I am missing something basic. I have a game where I have an update loop. I want to put up a screen where the player has to interact and then continue the update loop. I have changed the Time.timeScale to 0, but the update loop continues without pause. Should I just kick off another program as a singleton and ignore the update loop? What is the right way to handle this in a 2D game that is screen heavy? Avoid the update loop?

[heady iris]

Update gets called all the time

once per frame

you cannot stop Update without freezing the game

[stone crypt]

I got that - what I wanted to know is how you handle screen input with the Update loop. I have tried a few options, but I was not sure about it.

[heady iris]

So you want the game to pause while you're messing with an interface

[stone crypt]

I was thinking that the best option would be to ditch the Update loop and write my own loop.

[heady iris]

setting the timeScale to 0 is, indeed, the way to do this

what is the problem?

[stone crypt]

If you have multiple screens that you are using at different time points controlled by the update loop, they all stomp on each other?

[heady iris]

I don't understand. Why not just disable all but one of the screens?

[stone crypt]

Might just be my design - I used the UIKit - built multiple panels for one section of my screen and then wanted to switch between them in sequence.

I have to capture user input on each one.

[ancient summit]

        if (!SimulationManager.UsingLumin())
        {
            TextAsset t_defaultSave = Resources.Load<TextAsset>("Default");
//Line 86   Debug.Log(t_defaultSave.text);
            LayoutData t_layoutData = JsonUtility.FromJson<LayoutData>(t_defaultSave.text);
            string t_saveText = t_layoutData.saveText;

            CreateObjectsFromSave(t_saveText);
        }

I don't understand why this is giving me an error.. all of the solutions online are telling me this is how i should be loading a json from resources but it always comes back as null. It is spelt correctly as you can see, and the file extension is .json

[distant thicket]

Hello everyone. Experiencing some strange behavior in Unity and was curious if anyone had any knowledge of unity changing things in regards to where gameobjects are loaded when instantiated in OnEnable.

I have the following test

        [UnityTest]
        public IEnumerator LoadSceneAsync_Leaves_GameObject_in_Old_Scene() => UniTask.ToCoroutine(async () =>
        {
            // Arrange
            var initialSceneName = "Test Scene";
            var initialScene = SceneManager.CreateScene(initialSceneName);
            await UniTask.WaitUntil(() => SceneManager.SetActiveScene(initialScene));
            
            // Act
            await EditorSceneManager.LoadSceneAsyncInPlayMode(
                GetPathToTestDataAsset($"Scenes/{SafeLoadSceneAsyncTestSceneName}.unity"),
                new LoadSceneParameters(LoadSceneMode.Additive));
            var gameObjectCallbackCreator = Object.FindObjectOfType<GameObjectFromUnityCallbackCreator>();

            // Assert
            Assert.AreEqual(gameObjectCallbackCreator.OnEnableGameObject.scene.name,initialSceneName);
        });

And the following script

    /// <summary>
    /// Creates a gameobject when a unity callback is fired and a appropriate flags are set
    /// </summary>
    public class GameObjectFromUnityCallbackCreator : MonoBehaviour
    {
        public bool createGameObjectInOnEnable = true;
        
        public void OnEnable()
        {
            if (!createGameObjectInOnEnable)
            {
                return;
            }
            OnEnableGameObject = new GameObject("OnEnable GameObject ");
        }

        public GameObject OnEnableGameObject { get; private set; }
    }

When I Updated from Unity 2020.3.12 to 2020.3.46 my test now fails alluding to the fact that instantiated gameobjects in OnEnable no longer respect scene active state 🤔.

Anyone happen to know if this is a bug or intended change on Unity end?

[mystic lagoon]

i made gaem

[leaden ice]

Not aware of anything changing.
AFAIK Instantiate and new GameObject always have and always will create GameObjects in the active scene.

A bit unclear from your code exactly what you're doing or trying to test here.

[distant thicket]

Sorry, I'll clarify more because in 2020.3.46 I'm seeing that this is not the case.

Essentially I do the following in order

1. Create a test scene
2. Mark it as active.
3. Load a scene additively, where an object inside the addtive loaded scene creates a gameobject in it's OnEnable method.

The gameobject created in the additive loaded scenes OnEnable method I expect to be in the test scene marked as active. However after my update it is loaded in the additive scene itself.

In 2020.3.12 of Unity I am seeing the intended behavior where the gameobject is loaded in the active scene

[leaden ice]

Stupid question but have you tried logging which scene is active right before calling new GameObject?

SceneManager.GetActiveScene()```

then you could confirm if it's a problem of the object spawning in a scene which is not active, or a matter of the active scene changing when you don't expect it to

[distant thicket]

Yup, that's what makes it strange

Check it out

The correct scene is marked as active, however the gameobject is instantiated in the scene that it is being loaded with

[leaden ice]

I guess it's possible they changed something about how the GameObject constructor works.

Unfortunately the behavior isn't really documented well.
https://docs.unity3d.com/ScriptReference/GameObject-ctor.html
This doesn't mention scenes at all^
And this:
https://docs.unity3d.com/ScriptReference/SceneManagement.SceneManager.GetActiveScene.html
only mentions "instantiated" from scripts and it's unclear if they're referring only to Instantiate or also the GO constructor

I think an interesting test @distant thicket would be if you throw an Instantiate call in there too

will the instantiated copy go in the active scene or not?

It could also be a bug

Including potentially a bug with EditorSceneManager.LoadSceneAsyncInPlayMode in particular

[distant thicket]

yeah I was thinking that myself 🤔 . Although it does look pretty clear cut to me from the documentation what should occur though

Which is why it's so strange to me haha

But I really apprecaite your help!

[leaden ice]

Right that's a bit unclear because it could mean any form of instantiation, or it could just mean Instantiate

[distant thicket]

Ah I see what you mean

that's a interesting thought though and one I was also thinking about

[leaden ice]

which is also why I was curious about if you call Instantiate

whether it also has the same issue

[distant thicket]

gonna see if instantiate yields the same results

hah great minds

I'll report back

Yup looks like both new GameObject("") and Instantiate(...) are borked

[pseudo zodiac]

Hello,
I'm asking my question here because I'm not sure where to ask it.
It's a question about design.
I am currently making a 2d RPG and I am implementing a quest system.
The problem I have is that my game has several scenes and each quest is different from the others (really different), and depending on the active quest(s), I have to change and edit my scene in the right way (with the right pnj) according to the quest. And I don't really see how to design the thing. I have already made a "Quest" class that includes the basics such as progress status etc for the UI. I also made a QuestManager (with dontDestroyOnLoad), but I have a problem. I don't know how to design my class the right way so that when I load a certain scene it changes depending on the active quests. I don't know how to store my quests, a ScriptableObject doesn't seem to be suitable since each quest has different loading functions, prefabs maybe? If someone could enlighten me, give me an hint...
I am a beginner on Unity.
Thanks in advance.

[distant thicket]

There are really several ways you could approach your quest issue. Actually utilizing scriptable objects is not a bad way to do necessarily as that would give you the ability to define static data for each quest. For example quest title, quest image, quest experience and so on in the unity editor. You can then add those quest so's to your quest manager and maybe have an ActiveQuest property exposed in your manager to determine which quest is active.

I'm really going very broad here haha, it's very hard to give a breakdown of a good architecture on discord, but hopefully that maybe gets you oriented a little

You could also just make quest a standard class if you have some sort of a backend defining your quests

[molten thicket]

Hey guys,

Brace yourselves; I have a WebRequest question:

How would you pass a user flag for an API using a UnityWebRequest?

I can set headers, but the user flag is something I've never dealt with in Unity, and can't find any helpful resources about it.

[heady iris]

doesn't that just translate into an ordinary header?

[potent sleet]

what are you trying to implement in terms of custom functions ?

[distant thicket]

@molten thicket could you not send it embedded in the url via ?userFlag=flag

[pseudo zodiac]

The thing I don't understand about scriptablesobjects is that they are kind of classes with properties that you can modify in the inspector but for example, I can't create a virtual method in it and that's the problem, because I want to be able to have a custom code for each quest.

[heady iris]

Yep, that's the case

Authorization: Basic Zm9vOkJhcg==

that's what I got when I did curl -u foo:bar localhost:8001

you just base64 encode the username:password string

[pseudo zodiac]

For example each Quest must implement an OnSceneLoad methods which will load the scene with for example the right PNJ giving you the right thing to pursue the quest.

[molten thicket]

Excellent Question - I tried this and it still said I had an Auth error. Hang tight, I'll share my snippet 🙂

[heady iris]

i would not expect this to work

the server is expecting you to send an Authorization: header

[potent sleet]

quest manager should deal with this no ?

[molten thicket]

Is this what you were referring to @heady iris ?

[pseudo zodiac]

Yes but how do I store the Quest knowing that it may need to instanciate certain GameObject for example ? Using ScriptableObject wont let me add custom code or attach GameObject to it and I cant make it a "Scene Object" because It must be scene-agnostic since Player may need to enter a shop and exit to talk to a PNJ

[heady iris]

Yes, but you need to base64 encode the APIKey + ":" + APISecret part

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization

[molten thicket]

Noted @heady iris

I'll play around with it - Big thank you

[potent sleet]

Make Quest an abstract class

then you make different implementations of it

public class DeliverItemQuest : Quest {
    public DeliverItemQuest(string name, int id) : base(name, id) {
        // Constructor implementation
    }

    public override void StartQuest() {
        // quest according to "delivering item"
    }```

etc

public abstract class Quest {
    public string questName;
    public int questId;
// all your other stuff you need or watever

    public Quest(string name, int id) {
        questName = name;
        questId = id;
    }

    public abstract void StartQuest();```

[pseudo zodiac]

@potent sleet Okay, and for example I add an abstact void OnLoadScene(string sceneName) and based on the sceneName I load my GameObjects into it?

Should I hard code a reference to the GameObject ?

And should I store all my Quest in a List in the QuestManager?

[molten thicket]

@heady iris Got it working!

Thank you again - Learnt something new today 😄

[potent sleet]

you could yeah

public override void OnLoadScene(Scene scene) {
        if (scene.name == "Level1") {
            // Load game objects for level 1
        } else if (scene.name == "Level2") {
            // Load game objects for level 2
        }```
 just a very rough example prob not ideal / optimized

[pseudo zodiac]

Thanks I see, and any advice for the "hard-coding" of GameObject references ?

[potent sleet]

you can make Scriptable Objects as settings you load for different setups

[pseudo zodiac]

@potent sleet So for example I could have an « QuestSetup » classes Inherited with ScriptableObject with inside a List of GameObject and I create one for each quest so I can use the one I want when calling onLoadScene ?

[mellow seal]

Hey guys can you help me please

    IEnumerator SurroundPlayer()
    {
        while (true)
        {
            for (int i = 0; i < ChasingEnemys.Count; i++) //Follow player until SurroundRadius
            {
                if ((ChasingEnemys[i].transform.position - Player.transform.position).magnitude > ChaseRange + 1.5f)
                {
                    ChasingEnemys[i].SetDestination(Player.transform.position);
                }
                else //Surround player
                {
                    ChasingEnemys[i].SetDestination(new Vector3(
                        Player.position.x + SurroundRadius * Mathf.Cos(2 * Mathf.PI * i / ChasingEnemys.Count),
                        Player.position.y,
                        Player.position.z + SurroundRadius * Mathf.Sin(2 * Mathf.PI * i / ChasingEnemys.Count)
                        ));
                }
                yield return new WaitForSecondsRealtime(Random.Range(1f, 5f));
            }
            yield return null;
        }
    }

I want to add delay inside for loop but it doesnt work

[heady iris]

in what does it "not work"?

[mellow seal]

They are not waiting and setting destination immediately

[mellow seal]

its because you said what doesnt work i guessed that code is correct

and i checked my calling courutine method and yes problem was there thanks

[heady iris]

ah, that would do it :p

i was going to say, this looks fine

[mellow seal]

you helped a lot actually was trying to find what is wrong 1 hours
thanks 😄

[heady iris]

at some point, you have to step back and start poking at other parts of your code :p

[potent sleet]

something like I'm thinking yeah

[pseudo zodiac]

Thanks

[cosmic ermine]

is there a version of ApplyAndDisposeWritableMeshData that doesn't dispose of the mesh data?

[proper pier]

will a spring joint with 0f as spring value and a fixed max distance act as a taught rope?

[swift falcon]

try and see i guess

[harsh pasture]

Has anyone using Unity 2020 LTS encountered a bug where they couldn't start coroutines?
Unity is throwing an argument exception on this line with the message "Coroutines can only be stopped [sic] on a MonoBehaviour"
StartCoroutine(PlayCutScene());
The class absolutely derives from MonoBehaviour. Any idea what could be going wrong?

[cosmic rain]

Share the error details/callstack

[harsh pasture]

I fixed it. It was really weird, definitely a bug in unity.
I fixed it by duplicating the object, deleting the original, and then using the duplicated version. 🤷‍♂️

[distant thicket]

@leaden ice just in case you were curious I think I narrowed down the issue haha.

https://issuetracker.unity3d.com/issues/activescene-differs-between-editor-and-build-when-loading-a-new-scene

I know you might not have cared, but I felt like I owed you a conclusion lol

[red scarab]

Hey guys, I have two code snippets -- the first adds a ChildClass to the children list, while the 2nd creates a ChildClass and the child adds itself to the ParentClass's list ... My question is: Should I avoid the circular dependencies introduced by the 2nd example? I'm in a situation where it would be really convenient... I just don't know if circular dependencies should be avoided?

public class ChildClass
{
    public ChildClass() {}
}
public class ParentClass
{
    List<ChildClass> children = new List<ChildClass>();

    ParentClass()
    {
        children.Add(new ChildClass());
    }
}

public class ChildClass
{
    public ChildClass(ParentClass _parent) 
    {
        _parent.children.Add(this);
    }
}

public class ParentClass
{
    public List<ChildClass> children = new List<ChildClass>();

    ParentClass()
    {
        new ChildClass(this);
    }
}

[leaden ice]

Nice to know about the bug, also good to know the GameObject constructor does respect active scene

[potent sleet]

!code

[tawny elk]

Posting code

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

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

[leaden ice]

"parent" and "child" usually implies inheritance/polymorphism. This is a different kind of relationship.

Anyway yes it's usually better to only have one way references but without any context hard to say what makes sense or not for your particular use case

[potent sleet]

Circular dependencies can make your code harder to understand and maintain no ?

[dusk apex]

Really depends on whether or not this structure is meant to be bi-directional.

If so, be sure to null out references on removal of elements to not have dangling references.

[red scarab]

It's not MEANT to be bidirectional, and I really avoided circular references as long as I could ... but I'm against a networking race-condition where it's REALLY tempting to pass the "parent" to the "child"

[dusk apex]

Approaching the subject as though it were a linked-list - top down tree/hierarchy etc.

[potent sleet]

as long as you're aware of the potential drawbacks and are confident that it's the best solution for your specific use case.

[red scarab]

I'm not confident. I've just always avoided circular references "just because" but I'm not a professional programmer. So I'm asking you guys if I really should put in the extra effort to find an alternative to the dangling fruit

[potent sleet]

I'm no pro coder but I can assume interfaces or abstract classes would help minimize this ?

[leaden ice]

Again without actual context for why you want it, hard to say

[dusk apex]

I'd have a manager/lookup-tree/map of the entire tree and give those branches only a single direction of reference - a reference to it's children.
Best if the data isn't too deep else having a bi-directional "node" would be useful if you're just wanting to traverse the tree (especially in reverse) ect - be prepared for increased complexity.

[mellow sail]

Hi, I have just started on an aircraft marshalling simulator game and i am stuck in making the aircraft move with respective to the air marshaller wand does anyone know how to get started for eg.Player moves wand left aircraft turns left

[leaden ice]

Pretty vague

I'd this like a VR game or something?

[mellow sail]

yea its a vr game

[leaden ice]

You'd need to do some kind of gesture recognition

Which is a bit complicated

[mellow sail]

but im stuck at finding a way for the gesture to move the aircraft

[leaden ice]

That's the easy part

[mellow sail]

any idea of which gesture recognition to use

[leaden ice]

The hard part is recognizing the gesture

[mellow sail]

yea

[leaden ice]

No idea it's something to start researching

[mellow sail]

would getaxis work?

[leaden ice]

...

[mellow sail]

or using Vector3

[leaden ice]

You're at the start of a very long journey if you're asking that

[mellow sail]

💀

[mellow sail]

yup i just starting learning a month ago

[leaden ice]

Might I suggest trying something simpler?

[mellow sail]

yup sure

[red scarab]

Specifically, I have some class which exists as some generic object:

class ConstructableElement {}

...which is currently a pretty dumb class. But, it's a networked object. So if the Server spawns it, it gets spawned on all Clients.

Now, each client needs to know about the ConstructableElements -- because if we want to make a new element, we need to check if an element already exists. this needs to occur on the client-side so the server isn't the one always checking if elements already exist at locations.

class ElementManipulator {
    SyncList<ConstructableElement> existingElements = new SyncList<ConstructableElement>();
    //...
}

...and that's where the race condition emerges. The SyncList (from the Mirror library) can't de-serialize the ConstructableElements in time so there's a race condition at Start(). So, instead of Synchronizing through a SyncList, I was thinking just let the elements add themselves:

class ConstructableElement {
    ElementManipulator elementManipulator;

    Awake() {
        elementManipulator.existingElements.Add(this);
    }
}

...which would mean that the ConstructableElement needs to know about the ElementManipulator, thus the circular references.

[mellow sail]

what would be easier to code

[void basalt]

@mellow sailFor gesture recognition, you'll likely be storing movement positions and running some sort of algorithm on them

[mellow sail]

is there any guides to do that

[void basalt]

I wouldn't know

[fervent furnace]

Machine learning
I guest opencv has library for it

[mellow sail]

ooo i see thanks for the help

[mellow sail]

alright thanks im gonna start doing research on that

[void basalt]

Machine learning is an extremely advanced topic

just gonna throw that out there

[mellow sail]

hahahhahahhaha o shit

[void basalt]

Writing your own gesture recognition on top of that is even more complex.

[mellow sail]

the projects due in 3 months time

[mellow sail]

o god

is there any simpler way to do it

[void basalt]

I mean

you could record yourself doing the gesture, store the positions of your headset or controller or whatever

and create a "template" for the behavior

again, I have no experience in the VR field.

[mellow sail]

https://www.youtube.com/watch?v=x1GLPlil7hU

pretty much im trying to do something like this

[mellow sail]

ooo alright ill try

[void basalt]

I mean

it's going to take a lot of work

this isn't some one and done thing

[mellow sail]

yup

the project im doing has 3 people

working on it

[void basalt]

So basically you need to record yourself doing the movements, store them somewhere, and then find a way to compare your current movements to them

I guess we're getting into machine learning territory

[mellow sail]

yup

haahhahahhaha

im so screwed

alright thx for the help bro appreciate it

[void basalt]

@mellow sailTry this as a start. You'll need to record the positions of your controller, but only on a fixed basis. So like 30 times per second or something.
When you plot the positions, only save the deltas. So you'll only save the difference between x,y,z between each fixed tick.

When you want to run a command, make it so your user clicks a button on his hand controller, and then start recording

With the right search algorithm, you should be able to make something that works pretty decent.

[mellow sail]

Alright this is super helpful ill try researching on it appreciate it alot

thx for the headstart my dude

[modest nova]

can anyone tell me why I could be getting a null reference at
PhysicsWorldSingleton physicsWorldSingleton = SystemAPI.GetSingleton<PhysicsWorldSingleton>();

[plucky karma]

What type is PhysicsWorldSingleton? and does it hide a ctor by any chance?

[modest nova]

oh its fixed, I was calling a method in ISystem through a monobehaviour

[plucky karma]

IService would sound better 😉

[ionic socket]

I'm having a big problem with Overthinking my game architecture and I could use some "just do X" talk. I'm making a 2-player strategy card game where players draw from a common deck. I want to use the command pattern to implement most card effects (which may be things like Draw a card, Score a point, Place a marker, etc). My problem is in the line between creating a command, and changing the gamestate. The first thing that happens in the game is that the players get dealt cards. Each player gets 5 cards, so I loop through and create a series of "Draw A Card" commands that get added to the stack of executed commands. Here's the question: Should the command modify the gamestate directly, or should it call a method on the GameManager that does the change? Anyways... I want a simpler way to do this that replicates the method that a pro-indie might use for a real game.

[plucky karma]

Does your game have any rules that it must obey? Create the rules and use it to shape your game out of. You can then implement appropriate functions in area that can be invoked by, or access to. Implement a ICard trait that basically invokes potential behaviour pattern. E.g. void OnStartPhase(GameStateArg args);

Then each of your card class would implement behaviour at the time of the phase. If the card needs to interface with the rules, or do other desire effects, you'd modify the argument class reference, which then process at the GameState level state. E.g. Invoke any pending action before I invoke next rules... And so forth.

Implement immutable, and complete behavior first. Then you can consider adding variations later.

[ionic socket]

Well, yes - lots and lots of rules that may change with the play of cards. But I apologize, I'm not sure I'm grasping what you wrote at all. Let's forget about the mechanics of any given card for the moment and the card class, I just want to talk about the "proper" way to encapsulate a simple gamestate change. IE, dealing a single card.

[plucky karma]

GameManager would hold responsible for instruction player's turn. It can be reference via GameStateArg's parameters. In this case, it would also be responsible to know who drew the card.

[modest nova]

well I just moved the process to my monobehaviour

[plucky karma]

It shouldn't have to be!

[modest nova]

No actually I had a discussion with someone and he was right, ISystem for what I was doing was overkill :3

now im just stuck at the next step XD

[plucky karma]

Oof...

[modest nova]

[sonic zinc]

how do I rotate the bullets to align with the gun

[potent sleet]

use the guns rotation in the bullet then push bullet forward

[somber nacelle]

presumably you are using Instantiate to spawn them, you can pass the gun's rotation to Instantiate as the rotation parameter

[sonic zinc]

I was doing that but they were flying perfectly sideways

[fallen lotus]

how do I make a variable in a script show up as a dropdown menu in the inspector such as this exmaple:

[somber nacelle]

it's an enum

[fallen lotus]

would you mind giving me an example

with just like two options

[somber nacelle]

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/builtin-types/enum

[fallen lotus]

sorry im still confused. im talking more unity specific

[sonic zinc]

            firedBullet.transform.localEulerAngles = new Vector3(firedBullet.transform.localEulerAngles.x, firedBullet.transform.localEulerAngles.y + 90, firedBullet.transform.localEulerAngles.z);
            Vector3 directionTravelling = (hit.point - firePoint.transform.position).normalized;
            firedBullet.GetComponent<Rigidbody>().velocity = directionTravelling * bulletSpeed;```
This is my current shoot script

[somber nacelle]

i know. and that variable is an enum type

[fallen lotus]

yes but im not understanding how to implement it like that for the inspector

[somber nacelle]

so you create your enum with the different options, then you create a variable of that enum type

there's nothing special you need to do after that

[fallen lotus]

is the enum delcared outside the monobehavcior class or inside?

[somber nacelle]

depends on where you need it

[fallen lotus]

im referencing the variable inside the monobehavior class

[rain minnow]

just put an empty GameObject at the barrel of the gun and orient (rotate) it the correct way (forward direction shoot out the gun). use this GameObject for the position and rotation of your bullet . . .

[sonic zinc]

I have one called firepoint but its rotation is all at 0

[somber nacelle]

make sure the correct axis is pointing directly away from the barrel

which axis is the correct one depends on which axis the bullet points along at 0 rotation

[sonic zinc]

IT WORKS THANK YOU

I just had to rotate the empty by 90 degrees

I thought I needed some insane math equation

[candid trench]

Ok, im having an abnormal ammount of difficulty figuring this out.

Im creating a sort of RTS.
Each unit can have spells.
Now i want to define these spells somehow.
After having googled for 3 hours im still no smarter than when i started.
I tried using ScriptableObjects, but that just leads to all units sharing the same "cooldowns" and stuff.
Anyone got any clever idea of how to implement a spellsystem without me having to create a new prefab for each spell, attach that to the unit prefab and referencing it by hand?

[latent latch]

you'd have a single prefab but with different SO profiles

then spawn instances of that prefab

and load them with the SO data

[candid trench]

okay, but how do i differentiate between the different effects the spells will have

like, one spell might reduce armor or whatever, and another spell might heal another unit.

[latent latch]

Ability systems are actually pretty hard, but there's a design pattern called meta magic(?) where you keep the effect of the hit independent of how the ability moves and behaves

[candid trench]

i did actually read something about metamagic somewhere

[latent latch]

So if you did want to make say a projectile that burns, you'd have a SO with the default variables for how the projectile moves/casted/collision, but also it should have another SO (the hit portion) inside of the SO which tells it what to apply on the hit

[candid trench]

hm.

[latent latch]

The SO is just basically a data container with the default data for the most part.

Which you'd only read from on the actual game object

[candid trench]

so one base SO that every spell shares? and then the spell has a different SO for the hit portion.

[latent latch]

A super class for abilities is what I kind of do, I just make sure everyone works together enough, and even though you can create some really busted abilities, it's less of a design problem and more that the programmer decided to make a spell that way ;)

Yeah, you'd have a function inside of the spell prefab that calls a onhit method to execute the logic with the other SO you've given it

[candid trench]

Ugh, i dont know if im just tired or stupid. I cant wrap my head around it.

[latent latch]

Ok so the spell prefab should just handle stuff mostly stuff like the velocity of the ability gameobject and the collision checking. When you hit a target you'd do something like this:

``
protected bool TargetHit(Collider[] colliders)
    {
       .....
        foreach (Collider collider in colliders)
        {
            //If enabled, deal damage and apply ActiveEffect(s)
            if ((ability.StorableSO.TargetMask & layerMask) == layerMask)
            {
                if (collider.gameObject.TryGetComponent(out IEntity entity))
                {

                    foreach(var activeEffectsDict in ability.ActiveEffectsDicts)
                    {
                        activeEffectsDict.Key.ApplyEffect(entity, activeEffectsDict.Value);
                    }
                }
            }```

I actually do have some functionality (mostly an init function) in my SO for the onHit, but you can do similar stuff like a static function

[candid trench]

Okay, lets roll back. Lets focus on targeted spells. as in, they cant really miss. I just select a unit and do stuff to it.

However, im not quite understanding the benefit of having the "effects" being SO's since i have to create new scripts for each effect anyways.
So maybe i should just stick to regular scripts

Im sorry if i may seem confusing or confused. But thats just because i am just that, confused x)

[latent latch]

Scripts are completely fine, I've just got a bunch of data usually on my on hit (status effect tags, duration and stack logic). They are useful for pumping out a bunch of different scripts quickly from the editor.

[candid trench]

yea okay, i get that. But how do i define different effects directly in the editor? Seems to me that i'd have to hardcode effects

[latent latch]

I've rewrote it a few times, but in the end you do have to hardcode a bit and specify very specific details. Originally I actually instantiated the details as soon as the spell was created, but since I've an upgrade system now I've had to rewrite it so I can grab some of that data and modify it.

Was midway writing a parser for complex formulas until I realized maybe I didn't need all of that.

[candid trench]

lmao, been there a couple of times myself.

[latent latch]

But a few ideas if you want to look more into SOs. You can instantiate them if you want, despite what people say, and can edit them freely if you want to write to them afterwards. The only problem is that you can't start coroutines on them.

And, even though you can't run coroutines on them, you can still use them to spawn coroutines on other GOs and use the SO to keep* track of them

[candid trench]

interesting

[swift falcon]

Any solution for this crash SIGSEGV?

[modest nova]

how do I add to a entity from monobehaviour. I have got reference to the entity, I just want to add force to it

[tired drift]

Guys i'm honestly a thought here. Which IEnumerables (List, Array, Dictionary can i serialize / see on the Unity's inspector without having to make a custom one

[latent latch]

List, Array

There's some implementations for a dictionary if you look around on the forums

[thin aurora]

List and arrays are serialized. Dictionaries and such are not serialized by default, but you can use something like NaughtyAttributes to make those work: https://github.com/dbrizov/NaughtyAttributes

[tired drift]

Hm ty! guess i'll try to transform my dictionary into a list first but i'll have a look at that repo, seems pretty nice!

hmm guess i must be doing something wrong tho

just snippets, but for some reason it ain't showing the list

[SerializeField] private List<KeyValuePair<int,object>> _data => _gameData._saveData.ToList();

[Serializable]
internal class GameData
{
    public Dictionary<int, object> _saveData;
}```