archived-code-general

[latent latch]

Really the problem is the editor I guess to say

Yeah, the problem is I would like to hide some enum entries on the editor but I guess that's some editor scripting I can't be bothered with

[lean sail]

maybe u can use onvalidate for a quick fix in any class that wants to enforce this

[chilly surge]

Now that Microsoft is developing C# Dev Kit and slapping on the same license as VS, as well as developing the Unity extension, it seems to me that they have full intention to keep developing and making money off of it, so I'm optimistic about it.
Been using VS Code for Unity and that transition period between Unity dropping support and Microsoft picking up the torch was pretty rough, but now things seem to sail in the right direction again.

[latent latch]

onvalidate would prevent flags from being selected but it would still show them all if I stuck to a single enum

just another case of unity's terrible editor support for compositional programming

[twilit scaffold]

Good to know, thanks.. I wonder about Linux support though

[chilly surge]

AFAIK it should work there.

[dawn nebula]

What're you trying to do?

[latent latch]

Similar to using HideIf attribute, but instead of hiding a field on the editor, I'm trying to hide an enum entry

[dawn nebula]

Oh I was talking more about what these Enums represent.

[latent latch]

so you can think of my class such that ActiveEffect derives from Effect, but only ActiveEffect has values of duration and interval

they just represent values you can further modify

so one option is just make another enum for each derived class, but then it's just a lot of extra type checking

[sullen drift]

anyone has a tutorial project that i could learn about bubble shooter game in 2d?

[vague tundra]

I have an animation that is played using the Animator component.
In the animation, the player swings a sword through the scene.
The sword has a collider.
How might I go about appropriately detecting collisions between the sword and other objects? I suspect the animation is occurring in the regular Update method, so I am wondering how to correctly perform collision-checks with respect to the Physics side of things

[dense swan]

hello, sometimes JSONUtility.FromJson() can error when the input string is invalid. And the execution will just stop (it doesn't go to the next line).
This function doesn't seem to output error or anything, it just return the result.
Can I tell this function to use default value if it failed because the input is invalid?

[vague tundra]

private void Update() {

    try {
        var x = JsonUtility.FromJson<WeaponController>("hello");
    }
    catch (System.Exception e) {
        Debug.Log(e);
    }

    // Carry on

}

[lean sail]

show the code, also can you show the string and the Type?

[dense swan]

I intentionally use invalid input string to test in case player mess with their save file and broke it.
When that happened, I wanted to use default value.

this is the code

SaveData data = new();
data = JsonUtility.FromJson<SaveData>("rstrsta");

this is the type

class SaveData {
        public bool opened;
        public bool locked;
    }

[lean sail]

surely there is more code if you arent seeing an error

can you show the entire code

[dense swan]

no no I see the error in the console. I mean the function doesn't tell me if the input is invalid.

[lean sail]

Ah, then yea just wrap it in a try catch and itll be fine

although I wouldnt exactly catch Exception as shown above, its better if you specify the error which is ArgumentException here. If your SaveData class gets more complex, I would just manually plug in data to ensure its what you want as a default file.

        SaveData saveData;
        try
        {
            saveData = JsonUtility.FromJson<saveData>(jsonString);
        }
        catch (ArgumentException e)
        {
            Debug.LogError(e);
            saveData = new(whatever);
        }

Maybe directly tell the user the file broke too so they dont do it again

[lean sail]

meant to reply to you on the message above*

[slim gate]

I have this event; it is getting invoked, because "Invoking Event" appears in the console.

public class Player : NetworkBehaviour
{
    public event Action OnCharacterChange;
    private void CharacterChange(Id oldValue, Id newValue)
    {
        if (IsCharacterSetup())
        {
            Debug.Log("Invoking Event");
            OnCharacterChange?.Invoke();
        }
    }
}

Then in another class I have this where I subscribe to the event:

private Player _player;
public void Setup(Player player)
{
    _player = player;

    _player.OnCharacterChange += UpdateBanner;
}

private void OnDisable()
{
    _player.OnCharacterChange -= UpdateBanner;
}

Now the problem is, that UpdateBanner is not getting called when I invoke the event, and I dont know why. Any Ideas?

[cosmic rain]

Could be many reasons. The most obvious ones:

• it's not subscribed when the event is invoked
• it's subscribed to a different object that doesn't invoke the event.

Stepping with a debugger would unveil the mystery

[slim gate]

hmmm okay, I really should learn that

Ive been debugging with Debug.Log for years

[torpid aspen]

can anybody help me please? I'm coding and I'm stuck for a while on one thing

[hazy pike]

Im having a small problem with my inventory system. It works and everything and I have a script for dragging and dropping items between slots but it only drags and drops them in the UI, meaning that the index of the item in the array does not change according to its position after I moved it. I also have a script attached to each slot prefab which handles the ondrop event. Can someone please suggest how I can fix this issue?

to clarify more, the issue here is I can only move the icons of the item in my inventory and not the item itself

I'd be thankful if someone gave a solution as ive been stuck on that for like 5 days now.

[night harness]

Ok so ya'll are probably gonna hit me with a "do it another way" buuuuut

If I did want to instantiate a ton of gameobjects at bulk (hundreds-couple thousand max), Is there an ideal way to do that performance wise?

Does unity have something built for that i should be using instead of just spawning them each

[leaden ice]

Do it the naive way first, profile it, then think about breaking it up over multiple frames until you don't get hiccups

[night harness]

fair, its for an act that ideally only happens in one frame though so at that point not too much of an improvement

[leaden ice]

What are the objects?

Instantiate them ahead of time or do something else like a particle system

[static matrix]

does making a variable public have any effect on runtime perf?
just to clarify, if the answer is "yes but one its not much" that is still important because I have the very very very bad habit of publicing almost allll my variables

[mental rover]

runtime performance, no, developer performance, yes

[fervent furnace]

access modifer doesnt exists in asm

[late lion]

No. But even if, hypothetically, making variables public improved performance, you should still avoid making everything public. It often makes your code more difficult to work and reason with, wasting development time.

[static matrix]

idk seems to make things easier for me but im weird
okay good to know

[loud wharf]

If it gets too complex, you can use record structs instead.
And a good ol custom editor.

[late lion]

It's fine while you have everything fresh in your mind and know how everything works. But 6 months down the line, you're not going to remember all the details of how your inventory system works, but you have to know, because everything in it is public, nothing is abstracted or hidden away.

[loud wharf]

You'd get more freedom with it.

[static matrix]

well thats an issue with me forgetting to write comments, not being able to see vars
I tend to work better when I know the details of everything im working with
but this isn't a psych discussion, so i'll shut up

[tidal nebula]

Hi there Can some One help me with integrating Ads if they have done it before please provide the script and the method to do so i have tried unity doc's and youtube but wasn't able to do it succesfully

also i need Help with NavMesh it is not there in the designated place like with the physics and all that stuff

[static matrix]

punctuation is a neat little thing
idk if unity has a built in ad feature or not
Navmesh is under navigation, not physics

[fervent furnace]

unity ad, but i havent used it

https://unity.com/products/unity-ads

[static matrix]

I presume this would be for a mobile game
you are absolutely deranged if you think putting ads in a downloadable game is a good idea (no offense)

[woven mirage]

@swift falcon whomp whomp :)

[placid summit]

Hi with TMP_InputField if you do not press enter and click another control it resets by default it seems, which is not too useful! Is that an inspector setting?

[somber nacelle]

are you certain you aren't just clearing the input field in OnEndEdit or something?

[placid summit]

yes - I change text - click another control - the text resets to previous state

but let me check something...

ah ok maybe I am interupting TMP with this UI

the help docs are basically missing for TMP?

[rigid island]

they are not

[placid summit]

I only have http://digitalnativestudios.com/textmeshpro/docs/

[rigid island]

https://docs.unity3d.com/Packages/com.unity.textmeshpro@4.0/manual/index.html

[placid summit]

but does not cover UGUI?

[rigid island]

in what sense it doesn't ?

its the whole package, UI & mesh

[placid summit]

hmm nothing for TMP_Inputfield except in scripting that I can see. Maybe you are supposed to reference UGUI adn TMP docs together

[rigid island]

are you looking for code?

[placid summit]

no help reference for inspector side

the help button in 2022 is a broken link for that component

[rigid island]

inspector side?

[placid summit]

in the editor - I can click ? on any normal UGUI component in inspector and get help

[rigid island]

hmm not sure, most them should work, I just loookup things in the manual/docs

[placid summit]

oh so TMP_InputField has an onSubmit listener and an onDeselect listener - should be an inspector setting to make deselect call onSubmit but... maybe not? I think NGUI had one

[tepid brook]

Hi guys, my script is working well in the Editor but when i build the game i have an error like "object reference not set to an instance of an object"

[knotty sun]

very probably a script execution order problem or using assets not referenced nor in a Resources folder

[leaden ice]

Take the typical debugging steps - look at the code, add logs, figure out what's null and why.

[tepid brook]

i don't use ressource i reference all object in inspector and all is set in Awake and after that i click on a button

[naive summit]

Guys, quick question. Barrely started on new code for my game and already getting an error
So this is the code

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

public class WhoAmI : MonoBehaviour
{

    public GameObject whoami;

    // Start is called before the first frame update
    void Start()
    {
        whoami.SetActive = true;
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}

and the error im getting is, - Cannot assign to 'SetActive' because it is a 'method group' -
Why?

Quick mention that whoami GameObject is an UI inside Canvas

[tepid brook]

maybe because SetActive is a function not a bool so you have to do whoami.SetActive(true);

[knotty sun]

then it is likely a script execution order problem, log the order your scripts Awake and see where the problem is

[naive summit]

Damn, good thinking lmao. Thank you

[knotty sun]

your ide should have highlighted this error. if it did not !ide

[tawny elk]

💡 IDE Configuration

If your IDE is not autocompleting code
or underlining errors, please configure it.

Select one:

• Visual Studio (Installed via Unity Hub)
• Visual Studio (Installed manually)
• VS Code
• JetBrains Rider
• Other/None

[tepid brook]

But why its working in Editor but not in build

[knotty sun]

because the order of script execution in a build can/will differ from that in the editor
unless you specifically set it not to be

[waxen blade]

I am trying to create a scriptable object that can be created and have its values be modified in the Unity editor. I can make it work for existing data types like int, bool, string, etc. But is there a way I can make it work with my own unique class? In the screenshot the TestObject class is not showing up and I can't modify its values in the editor. Only the bool is showing.

[CreateAssetMenu]
public class TestScriptableObject : ScriptableObject
{
    public TestObject testObject;
    public bool isTest;

    public TestScriptableObject(TestObject testObject, bool isTest)
    {
        this.testObject = testObject;
        this.isTest = isTest;
    }
}

public class TestObject
{
    public int testInt { get; set; }
    public string testString { get; set; }
}

[somber nacelle]

the class needs to be Serializable. and unity also doesn't serialize properties, you'd have to either use explicit backing fields or target the backing fields of those auto properties for the SerializeField attribute like [field:SerializeField]

[waxen blade]

I understand half of this. I've just added [Seralizeable] to the top of my TestObject class. So I need to add SerializeField above testInt and testString? I don't know what you mean by backing fields.

[leaden ice]

A backing field for a property looks like this:

[SerializeField]
int _score; // << this is the field

// This is the property that the field is "backing"
public int Score {
  get => _score; // just returning the backing field's value
  set => _score = value; // just setting the backing field's value
}```

Unity's serializer can only serialize fields not Properties

properties are functions.

when you do:

public int Score { get; set; }``` the C# compiler automatically creates an invisible backing field for you

but you can't serialize that invisible backing field unless you do what box said here #archived-code-general message

[leaden ice]

by the way, ScriptableObject should not generally have a constructor.

since it should be created generally with ScriptableObject.CreateInstance<T>

[waxen blade]

So I can leave my testInt and testString properties the way they are:

public class TestObject
{
    public int testInt { get; set; }
    public string testString { get; set; }
}

but I need to add the [field:SeralizeField] attribute to them? Or do I need to convert them to look like your example with score?

[leaden ice]

Pick one. Either will work.

add [field:SeralizeField] or convert to a manual backing field like my example and serialize that backing field

You just need to serialize the field somehow

Also don't forget to make the class itself [Serializable]

I showed my example mainly by way of illustration to help you understand the relationship between properties and fields

[waxen blade]

I got it, I have it working now. I originally didn't realize they were two different ways of achieving the same goal.

[waxen blade]

I have been using Instantiate instead and it has been working for me. Is doing it without a constructor and with CreateInstance less expensive or just easier?

[leaden ice]

instantiate is fine, but instantiate also doesn't use a constructor

Instantiate just clones an existing one, CreateInstance creates a fresh one

[waxen blade]

Just commented out the constructors of my scriptable objects and everything is still running fine. I got it from a tutorial on scriptable objects. Now why would the tutorial include that? I'm going to watch it again to see if I can find out, but it looks like I don't need it. Thanks PraetorBlue.

[leaden ice]

Some tutorials are not well written

[tepid brook]

Can we use 2 canvas in 1 scene ?

Because my problem is i enable my second canvas but he stay disable

in the build

[leaden ice]

There is no issue with using as many canvases as you want.

[tepid brook]

i don't know what is the problem then x)

[leaden ice]

Have you checked the logs for errors

[tepid brook]

yes i have no error

the last debug return false xD

i enable 2 time the canvas

[leaden ice]

That doesn't tell us if you have an error

[tepid brook]

i don't

[leaden ice]

you'll want to look at the player logs

also you're using a deprecated property there

(as the warning is telling you)

[tepid brook]

i know its just for the debug to know if canvas is active or not

[leaden ice]

sure but it's not the right property

[turbid river]

hey guys, i have a really really dumb question, but sometimes i feel like i put too many if statements in my code and it just makes me wonder if "good" code or rather, actual game codes include a lot of if statements..any opinion is appreciated, thanks

[leaden ice]

do you know the difference between activeSelf and activeInHierarchy? It's possible to SetActive and still be not active in hierarchy

[leaden ice]

Way too general of a question. Show a specific code example then we could comment

[tepid brook]

i will check that thanx

[turbid river]

@leaden ice okay so for example im messing around with a silly idea of a plane game and i have a shit ton of conditionals regarding the current angle of the plane what i want to be done at what angle etc

[leaden ice]

show the code

[leaden ice]

yes this code is bad

[turbid river]

LMAO

thanks

[gray mural]

#💻┃code-beginner message

[leaden ice]

anyway !code for sharing code

[tawny elk]

Posting code

📃 Large Code Blocks

Use links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/, https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[turbid river]

why is it bad

[gray mural]

Because of the inconveniece for the people looking at your code you've shared as an image

[leaden ice]

1. reliance on euler angles
2. way too many repeated calls to the same property which is very inefficient transform.eulerAngles
3. too much nesting

also yes sharing as an image is 🤮

[turbid river]

apologies my friends

please be patient with my fragile ego

[turbid river]

whats the problem with 1?

dont tell me i have to work with quaternions

[leaden ice]

euler angles are subject to gimbal lock. They're also cyclical so it's not trivial to do comparisons

Quaternions are much easier to work with

but also rethinking your problem not in terms of euler angles often leads to simpler and more reliable code.

Like this for example is not reliable. Unity may give you an angle of -40. Which is equivalent to 320 degrees but this code won't catch it

it's much better not to deal with euler angles like this at all

[turbid river]

thats true but i noticed that whenever it goes below zero and it instantly becomes 360

are you saying it can sometimes become negative?

[leaden ice]

yes. And euler angles cannot be taken and compared in isolation due to gimbal lock

(180, 180, 0) is the same as (0, 0, 180) for example

but the first won't be noticed if you are only looking at Z. Euler angles cannot be analyzed in isolation safely.

They're just a nightmare to deal with.

[turbid river]

i understand

[leaden ice]

It's better to do something like:

float angle = Vector3.Angle(transform.up, Quaternion.Euler(0, 0, 305) * Vector3.up)); // compare your up to 305 degrees tilted up (which is the middle of 270 and 340)
if (angle < 22.5f) {
  // this is the same check as your code but without the transform euler angle pitfalls
}```

[turbid river]

so you take the global up vector and you rotate it 305 degrees?

[low pike]

How I can make that player must click buttons (objects) in specific order?

[leaden ice]

record as they click each thing and compare that to the expected order

[turbid river]

doesnt that become 395 degrees technically?

am i missing something

[leaden ice]

we're comparing it to your object's up

[turbid river]

oh nvm hold on

[leaden ice]

so it's 305 from there

since we normally expect the object up to be pointing... up

[turbid river]

it doesnt have to be up though right? i can use "right" as well

shouldnt the angle be 35? not 22.5?

but yeah this seems like a better way of doing things

thank you sir

[leaden ice]

Other things would be - invert your early-out conditions for less nesting

instead of:

if (!grounded) {
  // all your code
}```It's often better to do something like:
```cs
if (grounded) return;

// all your code```

then you have less nesting

[turbid river]

noted

[heady iris]

you can also punt it into another method

although, if the code requires lots of local variables from earlier in the function, that can be difficult

[turbid river]

@leaden ice and how should i rotate things properly? multiply my transform by a quaternion vector?

[leaden ice]

you can't multiply a Transform by things, and quaternion vector is not a thing

"how should I rotate things properly" is a pretty vague question so I don't really know how to answer it

lots of things can be rotated in lots of different ways to achieve lots of different effects.

[turbid river]

i meant something like transform.right * quaternion.euler(0,0,angle)

[leaden ice]

that's not valid code

since the quaternion needs to be on the left of the *

[turbid river]

oh

okay and after swapping?

[leaden ice]

it also depends what you're trying to do here

[turbid river]

i just want to rotate the z axis by some angle

[leaden ice]

you want to rotate the object?

[turbid river]

yes

[leaden ice]

then you use either:

transform.rotation *= <some quaternion>```
or ```cs
transform.Rotate(<some euler angle vector>)```

[turbid river]

ok thank you 🙏

[woven veldt]

Hi everyone. I really want to try and get a conveyor building system like those seen in games like satisfactory. I’ve done some research on Beizer curves and splines however I can’t get a constant velocity. Is there a package out there that already handles this?

[magic harness]

have you tried setting velocity manually?

Btw, hey guys. I'm making an RPG and my mouse click is going to have a lot of different responsibilities.

1. Move
2. Target an Enemy
3. Attack an Enemy if one is targetted
4. Cast a skill if there is one selected
5. Pick up loot
6. Interact with an NPC

Any ways to make this not be a spaghetti code? Right now i'm raycasting and doing a bunch of different checks and that doesnt seem right, but i also dont really want to have a script on every object i need to interact with checking for onMouseDown and then changing static variables as that also is very much the spaghetti i wanted to avoid centralizing my inputs.

Using the new input system btw

[leaden ice]

Use a state machine

[magic harness]

shit i didnt think about that

but how should it gather information? Raycasting or on mouse hover/ on mouse down events?

[leaden ice]

how should what gather information?
Each state has different things it cares about right? Something like mousing over objects can be routed through some kind of dispatcher that dispatches that information to the current state.

definitely use the event system

i.e. IPointerEnterHandler et al

[magic harness]

Uhm... That might be the right track for sure. I'll think about it a bit for sure

[sage narwhal]

Is there an optimal way of checking whether a GameObject is falling?

This is what I have so far but I'm not sure how to improve it:

private void FixedUpdate(){
    previousHeight = transform.position.y * Time.deltaTime * 100;
}

private void LateUpdate(){
    currentHeight = transform.position.y * Time.deltaTime * 100;
    if (currentHeight < previousHeight - 0.11f)
    {
         //PLAYER IS FALLING
    }
}

There's probably a fault in this but both print the same thing when a GameObject is falling

[lean sail]

This code makes no sense, why are you multiplying by deltaTime? Just compare the transform.position.y to a previous value. Then set the previous value after the comparison.
No need for both fixed and lateupdate here

[gleaming spruce]

if you have a rigid body, do Vector3.dot(rigidbody.velocity, transform.up) < 0 => falling

[lean sail]

This would break if the rigidbody rotates. Plus you can also just directly check if the velocity.y is negative

[gleaming spruce]

that is very true, just check velocity sign

[gleaming spruce]

or if you do not have a rigid body, do (transform.position.y - previousY) / Time.deltaTime to get the velocity at that timestep. I would suggest looking at some youtube videos about simple mechanics. It will help a lot understanding game dev, it will make you understand velocity/acceleration calculations

[sage narwhal]

Yeahh I thought fixedupdate and lateupdate would do that but it's too precise to get actual differences

[sage narwhal]

I'll have a look at some videos for rigidbody mechanics, thanks 🙂

[lean sail]

The issue isnt precision. fixed update and lateupdate do not run when you think they do

All of this really can just be in update, if you have a rigidbody with interpolate or arent using rb.

[sage narwhal]

I'm using a rb without interpolate

[leaden ice]

If you're using a dynamic Rigidbody all this physics stuff belongs in FixedUpdate. Also interpolate won't really matter to the Rigidbody itself

Just check if velocity.y is negative

[sage narwhal]

Since these values pop up whilst the player is on the ground, should I just check if it's lower than -0.1 or 0.2?

https://gyazo.com/bef4c100688b0f17219326f2f4a778ff.gif

[leaden ice]

You'll want to be not grounded and have negative velocity

[simple egret]

These values are very close to 0, but not exactly 0. But yes they should be ignored when grounded

[sage narwhal]

Got it, I've applied the change and now it works perfectly - thanks 🙂

[paper pond]

I have a pipe object with a BoxCollider2D and I have a drill that gets shot through the pipe that also uses a BoxCollider2D but as trigger. I've used a sprite mask to create a hole through the pipe but I need to somehow create a hole through the collider. I was thinking adding a second collider to the pipe and setting the bounds of the colliders to those of the drill but I can't seem to get it to work. Anybody know any other solutions?

[urban light]

Hello! Just a quick question how do I make sure my navmesh is apply correctly, as is right now my agent is failing to create.

[rigid island]

did you bake it and its blue?

is agent close enough

[rigid island]

maybe you can split it into two smaller meshes then use polygon collider, or just use the collder itself and assign the correct points

[urban light]

Turns out I didnt assign my Nav Date to my script! Thank you tho!

[rigid island]

Your nav didnt a date to prom ?

[paper pond]

am i able to assign the position of the points in world space?

or do they have to be relative to the center

[rigid island]

hmm been a while since I used it, you'd have look into it

[paper pond]

okay ty

[rigid island]

np

[urban light]

NavData**

[slate imp]

Hi there, i'm trying to create a voxel engine, for now i have a thing that can pop cube entities when i press space. My question is, should i put my hands in the mud to change of instead creating cubes, it instead manage all the verticies and merges them when two voxels side a side have the same color and aswell as not loading those who are not seen by the camera ? or is their some already existing things that can help me ?

[latent latch]

can you write out that question again

[slate imp]

i asked gpt to rephrase it, not sure if it will be more usterstandable :

Hello, I'm working on developing a voxel engine. Currently, I have a feature that generates cube entities when I press the space bar. I'm wondering if I should manually modify the code to manage all the vertices and merge them when two adjacent voxels have the same color, as well as not loading those that are not visible to the camera? Or are there existing tools or libraries that could assist me in achieving this?

[leaden ice]

If you're saying you are creating individual GameObjects right now for each voxel, then yes, you need to go back to the drawing board

there are plenty of Unity Minecraft type tutorials floating around you can base your work off.

[slate imp]

Well in other words, actually what i have :

• I press space : one cube spawn next to the previous in a grid

My goal :

• Having a voxel engine
• Having it optimized

My thoughs :

1. Instead of creating a whole cube each time i spawn a voxel, manage verticies
2. Instead of spawning all verticies, spawning only who are visible
3. Merging verticies that have the same color to have less entities

Another though :

• is their some things that handle my goal without rewriting everything from scratch ?

[slate imp]

i'm not handling GameObjects but entities (ECS/DOTS)

[latent latch]

individual gameobjects can work if you eventually merge the meshes together at the end, but the biggest problem I've ran into on the editor is that you'll run into performance problems very quickly cause you're editing these objects without batching

rather, very limited batching as stuff like static batching is runtime specific

[slate imp]

I though about something that could handle verticies merge and things like this automatically, i just give him the camera position and all the verticies or all the voxel position and it will automatically display only the verticies and merging them to prevent having too much entities

Batching will be for handling spawning some chunk of voxels at a time, like one batch for 4 chunks of voxels

[latent latch]

I'd just look into the typical voxel generation and chunkiing before deciding on anything custom if you're not familiar with it

unity already does a lot of optimizations you may not be aware of so you don't need to think too hard about culling and batching beyond just not having a billion gameobjects on the scene

[slate imp]

I've looked at some but it seems that people don't want editable voxels simulation, like they generate only the top part and don't even handle if a voxel is removed like mining a cube in minecraft

[slate imp]

Well i'm willing to get it worked without a gpu so imo i'll need to get some optimisation, but yes the batching isn't my priority rn because i'll be able to "jobify" it quite easily in the future, my question was about render meshes and verticies

[latent latch]

well the idea with chunks is more chunks = less draw calls

but if you're editing a chunk at runtime every so often, then you are rebuilding that chunk everytime so bigger chunk more rebuilding and redrawing

[slate imp]

yes aswell, i'm planning to do it

[slate imp]

yep i know this

[latent latch]

bigger chunks also create problems for frustrum culling as when you render a bit of that chunk it will render all of it (backface culling from your shader will help lessen what's visible though), so there's some balancing to be done

[slate imp]

once again, my question wasn't about this, it was about verticies merging and things like this. Because actually i have a bunch of verticies for each cube and a lot that not even displayed because they are not facing the camera. I'd like to know if their are some built in tools to handle this kind of things

Actually i can spawn about 12k cubes, but at 12k cubes my frame rates drops to 40fps only because of the rendering, without any computing on top, just having the game running

[latent latch]

if it's not in view of the camera it will be culled by default via frustrum culling

if it's a large plane that's a single mesh and it expands behind you, then that back part wont be culled if you're looking at the front of it

[slate imp]

Its a top down view with a kind of far view so i need a bunch of cubes, i'm not creating a minecraft, if you prefer a better comparaison point, i'm building a stonehearth kind of game

[latent latch]

in that case you probably have a lot of room to work with. I'd chunk your meshes about a screensize worth and playing around with that

[slate imp]

well, we are going somewhere, yes the single mesh for areas where there are large plane surfaces, but how to handle it when behind the scene you have a voxel engine ?

[slate imp]

yes, my thoughs about the process were :
Simulation engine (have all voxel in memory) -> voxel engine (filter only voxels that could be visible) -> display engine (filter only verticies that are visible)

So what i'm asking was about the display engine, i have a bunch of voxel to display, how to make it work, how to know when voxels meshes are connecting, without going x^2 times into the array of voxels, is their some techs or math that could make things easier

[latent latch]

between backface culling and frustum culling you only need to worry about how much is visible relative to the camera, and chunked enough that it only needs to compare against a limited amount of meshes. If you do want some more optimizations, make sure you're removing faces of your voxels that are centered to your meshes such that no faces should be exposed.

[latent latch]

it's just array math, (or dictionary/lookup table for infinite world)

array of chunks which contain an array of voxels

[slate imp]

So how to do "backface culling and frustum culling" are their things that i have to implement myself with some raycast or things like this or is their some library or package that could help me ?
Also, what do you mean by make sure you're removing faces of your voxels that are centered to your meshes such that no faces should be exposed

[slate imp]

well yes but in 3d space, and sometimes there are some very intresting math formula for this, istead of making it "brute force"

[latent latch]

https://docs.unity3d.com/Manual/UnderstandingFrustum.html
https://learnopengl.com/Advanced-OpenGL/Face-culling <- unity shaders provide this

[slate imp]

i'll look at it more deeply, well for now i'll go sleep, its 1:30 am for me xD

thanks

[latent latch]

"Also, what do you mean by make sure you're removing faces of your voxels that are centered to your meshes such that no faces should be exposed"
It's the concept of "Air" blocks which 'exist' in data but shouldnt be rendered because there are voxels surrounding it

[slate imp]

oh okay i see, yeah basically though about someting to distinct when changing martial type (air, water, earth) to get only the blocks that are in between and preventing loading too much useless blocks

[latent latch]

basically if you're rebuilding your chunks you just want to build the verts that can be visible to the user

[shell scarab]

Hey guys, I'm getting this error from unity when I'm removing things from a list:

InvalidOperationException: The operation is not possible when moved past all properties (Next returned false)
UnityEditor.SerializedProperty.Verify (UnityEditor.SerializedProperty+VerifyFlags verifyFlags) (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.SerializedProperty.get_objectReferenceInstanceIDValue () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.EditorGUIUtility.ObjectContent (UnityEngine.Object obj, System.Type type, UnityEditor.SerializedProperty property, UnityEditor.EditorGUI+ObjectFieldValidator validator) (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.UIElements.ObjectField+ObjectFieldDisplay.Update () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.UIElements.ObjectField.UpdateDisplay () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEngine.UIElements.VisualElement+SimpleScheduledItem.PerformTimerUpdate (UnityEngine.UIElements.TimerState state) (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.TimerEventScheduler.UpdateScheduledEvents () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEditor.RetainedMode.UpdateSchedulers () (at <3104ccaa0bea414cad8743a20c82e823>:0)

I'm assuming that I should just ignore it? I'm pretty sure there's nothing I can do to stop that. It only occurs when the object is being inspected and something is removed from the list. If the last element of the list is removed, it spams this error.

I also get this error when inspecting the object and something is removed that's not the last element in the list:

ObjectDisposedException: SerializedProperty _allPlayerUnits.Array.data[0] has disappeared!
UnityEditor.SerializedProperty.Verify (UnityEditor.SerializedProperty+VerifyFlags verifyFlags) (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.SerializedProperty.get_objectReferenceInstanceIDValue () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.EditorGUIUtility.ObjectContent (UnityEngine.Object obj, System.Type type, UnityEditor.SerializedProperty property, UnityEditor.EditorGUI+ObjectFieldValidator validator) (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.UIElements.ObjectField+ObjectFieldDisplay.Update () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEditor.UIElements.ObjectField.UpdateDisplay () (at <5e6ebaa7d75c4d5399dc81ecead6b43f>:0)
UnityEngine.UIElements.VisualElement+SimpleScheduledItem.PerformTimerUpdate (UnityEngine.UIElements.TimerState state) (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.TimerEventScheduler.UpdateScheduledEvents () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at <383db090fd544f24b368fd389016a28f>:0)
UnityEditor.RetainedMode.UpdateSchedulers () (at <3104ccaa0bea414cad8743a20c82e823>:0)

Again I'm pretty sure I should just ignore these, I don't think I'm doing anything wrong. It only happens when I remove from the list.

[heady iris]

Have you restarted unity?

[shell scarab]

yea :(

[heady iris]

It's alarming to see problems from the actual serialized property code

[shell scarab]

Oh, it also just occured to me that the inspector is displaying two lists that sometimes share objects, so maybe it's related to that. (for debugging reasons)

[heady iris]

I've definitely seen errors like this in...pretty tame situations

I have yet to have that coincide with actual permanent problems

i.e. corrupted or missing serialized data

[shell scarab]

Ok, but it shouldn't be something I'm doing right? Especially if I don't have a custom editor?

[heady iris]

Right.

[shell scarab]

cool thanks

[vapid lynx]

im kinda confused why im getting the error

[rigid island]

whats error say?

[rigid island]

just inside VS not unity ?

[vapid lynx]

yeah

it shows no error in unity

[rigid island]

try regen project files maybe

[vapid lynx]

alr

[vapid lynx]

what does this error mean

nvm i tihnk i figuted it out

[grave thorn]

Hey eveyone, Im trying to make an enemy indicator in a FPS 2D game... The indicator should turn on when the enemy is out of the screen and be on the edge of the screen and indicate where the enemy is. I dont know how to, any guidance?

[latent latch]

googles

[lean sail]

Which part do you struggle with specifically? This is a few different problems
Know when something isnt on screen
And making an indicator which turns on

[grave thorn]

hmm so heres the current code.. it doesnt work.. https://youtu.be/pYEAwiKFKeg followed dis.. The indicator never turns on...

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

public class EnemyIndicator : MonoBehaviour
{
    GameObject indicator;
    GameObject player;
    Renderer rd;
    // Start is called before the first frame update
    void Start()
    {
        indicator = transform.GetChild(1).gameObject;
        rd = GetComponent<Renderer>();
        player = GameObject.Find("Player");
    }

    // Update is called once per frame
    void Update()
    {
        if (!rd.isVisible)
        {
            if (!indicator.activeSelf)
            {
                indicator.SetActive(true);
            }
        }

        Vector2 direction = player.transform.position - transform.position;
        RaycastHit2D hit = Physics2D.Raycast(transform.position, direction);

        if (hit.collider != null)
        {
            indicator.transform.position = hit.point;
        }
        else
        {
            if (indicator.activeSelf)
            {
                indicator.SetActive(false);
            }
        }
    }
}

[golden wave]

don't just paste your code here and ask us to figure it out, that's your job
at least give us a clue as to where it goes wrong
go look up a debug tutorial or something
then when you have more specifics you can come and ask a specific question here

for now, just use Console.Log to figure out where it goes wrong

[grave thorn]

ok.. mb..

[lean sail]

first thing is that raycast definitely looks questionable. It is turning off the indicator if it doesnt hit anything in the direction of the player? whats the point of this
Add debugs inside that if (!indicator.activeSelf) and if (indicator.activeSelf) to tell you when its actually being turned on

[grave thorn]

ok ill do that nd let uk

[merry stream]

are the IPointer interfaces used with the old input system only?

if so, how would I translate them into the new input system

[chilly surge]

They should still work with the new input system.

[thin aurora]

#📦┃addressables probably

[heavy flume]

didn't see at all, thank you

[modern hamlet]

Hi folks. Anyone got an idea why the editor spams me with the Error Input Axis Horizontal not set up, when all I got is prefabPlayer1[i].GetComponent<PlayerScript>().ControlSchemeX = "Horizontal_P1"; and the axis is declared as Horizontal_P1 inside the input manager? (btw ControlSchemeX is just a getter/setter for a readonly String)

Also pretty weird because my input seems to work just fine and without any hiccups as far as I can tell. Nevertheless I'm worried about the spam I get with the above mentioned error.

Already thought of some kind of Awake vs Start issue, but that doesn't seem to be the case. (Version: 2022.3.25f1)

[thin aurora]

This error means that you’re using an axis not set up in the Input manager. Usually this happens when you try to read a non-existent axis, or an axis with a misspelled name, like Input.GetAxis("horizontal") (it should be “Horizontal”) or Input.GetAxis("ScrollWheel") (should be “Mouse ScrollWheel”).

[modern hamlet]

Yeah, I read about that. Speeling is fine though - even copied the value right over.

[thin aurora]

Perhaps you have a duplicate saved somewhere which it complains about? Considering it does work for you

I'm not too familiar with the input system but it seems to complain about "Horizontal" rather than "Horizontal_P1"

It's probably better to ask this in #🖱️┃input-system since more people will look in here

[modern hamlet]

Yeah that's what freaks me out about it 😄 I also searched the whole project for the word "Horizontal"... but couldn't find any reference at all.

[modern hamlet]

Oh, damn have overlooked that. Very sorry.

[thin aurora]

No problem! Just so you likely get a better answer

[dense swan]

Hello, where do you usually put your camera rotation code in FPS game?

I have 75hz monitor, move character using CharacterController in FixedUpdate, animation in Normal mode. My camera look code is in Update, and I update my camera position in LateUpdate, my cinemachine brain is also LateUpdate (because it's gonna be jittery in Smart mode)

When I move my camera I can sense the jittery/choppy movement. It is fixed by moving my camera rotation in Fixed Update, but I'm afraid if I moved it to FixedUpdate, people with high refresh rate display will only see 60fps movement. But I don't know I can't test, I don't have high refresh rate display. I'm confused, I don't know what to do.

[vestal arch]

(FixedUpdate is 50 Hz by default btw)

[knotty sun]

If you are using CharacterController there is no need to use FixedUpdate at all, FixedUpdate is generally for physics related stuff which Character Controller does not have

[placid summit]

anyone understand xcode and signing?! My project used to work and now I get "Command CodeSign failed with a nonzero exit code"

[lean sail]

Along with what Steve said, you shouldnt need to even worry about this because cinemachine handles all of it. Unless you have some extra camera logic that cinemachine doesnt solve.
There are many options on it, some which are suitable for rigidbody motion

[dense swan]

ehh!!! so I can do it in update?! hmmmmm..... maybe I'll try to move my CharacterController code in Update.
Thank you for the tip. I hope that can fix my problem.

UPDATE: YES IT IS!!! much better now.

[dense swan]

hmm, I don't know if I have special case but using smart mode, Cinemachine liked to switch between two modes randomly (checked using the virtual camera), I don't remember what mode it is exactly but it made the camera jittery when Cinemachine moved to one certain mode. but maybe I was doing it wrong because some object will still looked jittery after I set it to LateUpdate but it's better since it's not very noticeable.

[lean sail]

I don't exactly recall what settings I used, if you do use rb movement in the future you may just have to play around with it. I pretty much just guessed at the time to see what worked with my character

[signal ridge]

How would people normally organize their Enums ? Coming from Web i would have had its own file for schemas basically. But how would i go about it in C# because leaving it inside the class seems bloated.

[thick terrace]

my rule of thumb is as soon as it needs to be public or used from another class it's worth moving to its own file

[signal ridge]

Being unity, i assume if i create a new file, it will be automatically compiled and usable without importing enums seperately to the file right ?

[knotty sun]

An Enum is a type, much like a class. So putting all Enums into one file should be no problem

[vague tundra]

I'd be interested to hear about other peoples approaches too
What I do currently is have all my enums (that need to be used in more than a single location) in a file, in a namespace named EnumDefinitions. That namespace can be imported into other files to use the Enums.

[cosmic rain]

Grouping the whole project enums in one place kinda goes a bit again the encapsulation principle.

I think it makes sense to define the enums in a class that they're most relatable to, like tool types in a tool class.

Or even outside of the class but in the same file

[lilac lance]

when I change the size between the scene and the project window, red lines appear, the buttons break up and it affects when I start the game and the buttons there also change, but I don't change their size, I just want to make the scene window smaller

[gaunt holly]

Hi, could someone help me to correctly do the movement and jumping system please?
The problems I currently have are:

• when I move the player is blocked by a certain Tile
• I can't jump (and even less while moving at the same time)

that's it, thank you, please mention me

[thin aurora]

Please configure your !ide before receiving help

[tawny elk]

💡 IDE Configuration

If your IDE is not autocompleting code
or underlining errors, please configure it.

Select one:

• Visual Studio (Installed via Unity Hub)
• Visual Studio (Installed manually)
• VS Code
• JetBrains Rider
• Other/None

[gaunt holly]

okay it's good, and now ?

[signal ridge]

Definetly get that , but when theres deeper need for the enums for example incoming outgoing data through APIs then reaching that tool class for example will be harder. This comes back to kinda the web side where im coming from , "One True Source for data" or Stores in a sense ( Redux, Pinia etc).

[vague tundra]

If you're modifying a RigidBody's velocity, it's likely you'll want to be using FixedUpdate

[lilac lance]

Amarodil | Scourgefall — Сегодня, в 13:10
*you didnt properly set your anchors, i would assume *
⬆️ Solved

[gaunt holly]

Okay thx, for movements it's right but impossible to jump

[vague tundra]

What's wrong with the jump?

[gaunt holly]

and also at twice the speed but not slow I get stuck in the corner of a tile

[gaunt holly]

when I jump, nothing is happening

[slim gate]

getting stuck on corners of tiles is an easy fix, there is a composite collider setting somewhere

Makes it so the collider is one big one for the whole tilemap instead of one for each tile

[vague tundra]

Alright well these all sound like classic development issues.
I'd recommend trying to figure the problem out yourself as best you can, and if all else fails, ask a single, specific, well-explained question here and we can help(:

[gaunt holly]

Okay, that is to say what exactly should I do please?

[slim gate]

Enable "Used by Composite" on the Tilemap Collider

And attach a Composite collider to the same GameObject

I think

[gaunt holly]

Okay no problem thx

[slim gate]

not sure cause its been a while since I did this

[gaunt holly]

Okay, so with a Composite Collider, all tile (the ground) fall and always the same problem

[vestal arch]

you missed the other step

[slim gate]

It tells you right next to the big exclamation mark

[gaunt holly]

I add it but the ground fall

[vestal arch]

you clearly did not add it, or you did not add it correctly

where's your composite collider?

[gaunt holly]

Yes, but I removed it since the floor was falling

[vestal arch]

ah, that's what you meant by fall

set the rigidbody type to Static

you need the compositecollider.

[vestal arch]

set this to static

[gaunt holly]

mmm okay it's good

I will check to correctly set the jump now

thank you

[clever leaf]

hey, is there any way to snap from one animation clip to the other instantly? I have an animator that has a bool to make a character sit and when I transition between the states it sometimes makes it play a part of previous animation, I would like for it to snap to the sitting animation instantly

[leaden ice]

Turn off the exit time in the transition.

Not a code question btw. #🏃┃animation

[clever leaf]

sorry, I was thinking about a code solution and my brain went here, my bad

[runic linden]

Can somebody with better knowledge of C# tell me if there are performance differences regarding those two functions?

public (string s, int i) GetTuple() { }

public void GetTuple(ref string s, ref int i) { }

(I use it for my dialogue handler who wants the next line as well as the speakers ID)

[vestal arch]

probably, but it'd be negligible

[knotty sun]

absolutely there is a difference, albeit a very minor one. Both string and int are value types which means in the first case copies are being made which in the second case they are not

[vestal arch]

premature (micro)optimization territory

[runic linden]

Alright, thanks. 🙂

[slim gate]

on that note

With singletons is there a significant difference wether i call Singleton.Instance.x every time or cache Singleton.Instance once and then use that?

[knotty sun]

no difference, an address is an address

[vestal arch]

wouldn't there be a copy when assigning to s anyways (in the latter case)

[knotty sun]

not on read, no, on write, yes

[vestal arch]

in context, there'd be writing anyways for that function

so i guess there's just no difference for that, really?

[knotty sun]

I cannot tell, on the basis of a method signature, what that method does with it's data

[vestal arch]

it's comparing ref params to a return type though

assuming they do the same thing, those params would be assigned to?

[knotty sun]

then only the string would incurr overhead, the int would not

[vestal arch]

why wouldn't it

wouldn't it still need to copy over those 32 bits

[knotty sun]

no, strings cannot be updated, all pimitive values types can be

[vestal arch]

pretty sure primitives are immutable?

[knotty sun]

nope

[vestal arch]

and i don't see how that makes sense that that means it doesn't incur overhead

you still need to, yknow, do the assignment?

and it's a value type, so it's getting copied over regardless

aren't value types by definition immutable

[vague tundra]

Strings are a bit of a special case in most languages, but I believe strings are indeed reference types in C#

[narrow nebula]

when setting the text of a TMP_Text with a public string, how to include line breaks to the string in the editor, since \n doesn't work when set in the editor?

[vestal arch]

on c# docs;

The following table lists the C# built-in value types:
and then it lists all the primitives

[vestal arch]

ah yeah they are

[knotty sun]

no.
the original int declaration defines an address in stack space,
the ref parameter passes that address
inside the method the contents of the address are being updated.
no extra stack space allocation

[vestal arch]

yeah that applies to the string too?

and that's not what im referring to

im referring to the actual assignment

[knotty sun]

no, string are different, that is why strings should be avoided if possible

[thick terrace]

a ref is a pointer though, the ref int parameter is actually larger than an int technically

strings are just pointers too

[knotty sun]

no they are not

[vestal arch]

i mean.. technically only on 64-bit architectures...

[thick terrace]

true 😛

[vestal arch]

pretty sure they are

[knotty sun]

true, but that is a register ation not a stack space action

[vague tundra]

When you say editor, do you mean Inspector?

[vestal arch]

yeah, im not talking about that distinction at all

[knotty sun]

I know damn well they are not

[vestal arch]

ok, what are they then

[thick terrace]

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/builtin-types/reference-types#the-string-type

[narrow nebula]

yeah the unity inspector

[vague tundra]

Should literally be able to press the enter key, like you would in any regular text field

[knotty sun]

think about it, if a string was just a pointer how do you know how long it is?

[narrow nebula]

doesn't work for me

[vestal arch]

string s = "asdf"; // 5 bytes on stack?
int i = 0;
s = "123456"; // did i overwrite `i`?
```they're on the heap, no? just like any other reference value?

[thick terrace]

it's stored alongside the string pointer inside the string instance on the heap

[vestal arch]

Null-termination, storing the length somewhere, having the string actually be an uint (length) and a ref (char array), etc..

[knotty sun]

yes, so not 'just a pointer'

[vague tundra]

Chuck me a screenshot to see if I'm thinking of the right thing

[vestal arch]

im more lost about what you're talking about now

[thick terrace]

a System.String is a reference so it is a pointer not a value type

it's a pointer to a class which has 2 members

[narrow nebula]

in tmp text i can use enter

[vague tundra]

Ahh that's interesting. Let me experiment

[vestal arch]

string: 0x2345fbc3

0x2345fbc3:
0003 ; length
0x2345fc00

0x2345fc00
97
98
69

why wouldn't it be a single pointer

[knotty sun]

Don't tell me, I know what a string is. And I repeat not 'just a pointer'

[vague tundra]

Give this attribute a try

public class MyComponent : MonoBehaviour {
    [TextArea(3, 10)]  // Specifies min and max number of visible lines
    public string multilineText;  // A multiline string field
}

[chilly surge]

String is a reference type.

[vestal arch]

if it stored its length on the stack, what about other reference types that store other lengths of things on the stack
you sure you don't just mean the size of the structure?

it's just a pointer with metadata. is it illegal to just be lazy and say "pointer"?

[thick terrace]

relating this back to the original question, for performance purposes you can consider a string a pointer since copying/returning it is no different to copying its address - it doesn't copy the string to return it by value

[chilly surge]

String has implemented value semantics, but strings are very much still heap objects. There is also string interning but that's an implementation detail.

[vestal arch]

especially when having/being a pointer is the defining trait of a reference type in any language

.

besides all that, that's again not what im talking about with the overhead at all. im talking about literally just copying the int from one stack memory cell to another stack memory cell
it's still "overhead" to assign, despite how little overhead it may be
given that we're talking about the distinction between reading and writing ref values, and we're talking in technicalities, is assignment not overhead?

[vestal arch]

oh this is such a fresh breath of air from c++'s explicit references

[vague tundra]

LMK if it worked

[narrow nebula]

it seems to work great, though im not sure about the min/max amount of visible lines

[thick terrace]

iirc once you return a large enough object the compiler will do pretty much the same thing as passing in a reference anyway?

[chilly surge]

The tuple return version has to make two copies when returning, but the ref parameter version has to pass pointers to the method, and all access to those parameters inside the method has to dereference the pointers, so it's not clear cut which one is faster either.

[vestal arch]

is that not happens with any reference type?

[thick terrace]

i mean if you return a tuple with a bunch of return values in one

[latent latch]

ref looks cleaner so ref wins

[thick terrace]

yeah, if you're going to put 2+ values in a result tuple, you should define a struct for them imo 😛

[chilly surge]

I would say the opposite, especially from caller PoV.

[vestal arch]

cc @runic linden if you care about the deep internals of computers btw ^
all of this is pretty negligible for actual performance concerns though, since they're like 2-digit cpu cycles apart at most

[vague tundra]

According to the docs, the maxLines param is how many lines it will display before using a scroll-bar

[latent latch]

I dislike how minimal tuple syntax is, also accessing by key values if you don't define the parameters blehhhh

[narrow nebula]

Neat, tysm for the help

[vestal arch]

im confused on what you mean by this
tuples are value types, but if you use large enough tuples they turn into reference types?

[placid summit]

tuples are evil, what was wrogn with structs 🙂 But I like (a,b)=(b,a)

[chilly surge]

Think about it from caller PoV though, the ref version would look like:

int i = default;
string s = default;
GetTuple(ref i, ref s);

If you use out instead of ref it looks a bit better with inline declaration:

GetTuple(out var i, out var s);

But it's still miles uglier than tuple:

var (i, s) = GetTuple();

[thick terrace]

no, just saying that iirc the difference won't always be as big as you'd expect because the compiler can optimize it sometimes

[latent latch]

where be thy types though, also you'd have to access by Item1, Item2 in this case, no?

[chilly surge]

Nope, you literally just use i and s.

var (i, s) = GetTuple();

Can be roughly think of as:

var _temp = GetTuple();
var i = _temp.Item1;
var s = _temp.Item2;

[latent latch]

ah, ok then that's probably fine then

[placid summit]

but a tuple is like an untyped struct right? going back to untyped objects seems a back step though for quick use OK

[chilly surge]

No, it's strongly typed. i will be int and s will be string.

[thick terrace]

the original example named i and s too, so you could do GetTuple().s directly

if you ever need to write Item1, reconsider your choices lol

[placid summit]

strongly typed variables in an unamed wrapper I guess - OK

[chilly surge]

You can also name it.

[heady iris]

C# is statically typed, unless you're using the evil dynamic keyword

[heady iris]

i mostly do this when it's a key-value pair

..but i guess i should be using KeyValuePair in that case

[thick terrace]

you can destructure those!

[heady iris]

ok but what if i didn't

💥

[thick terrace]

then you gotta name them or i'm calling the cops

[chilly surge]

A method signature of:

(int Foo, string Bar) GetTuple()

Will allow you to access the tuple members with their names:

var result = GetTuple()
Debug.Log(result.Foo);
Debug.Log(result.Bar);

But realistically you will just deconstruct them:

var (foo, bar) = GetTuple();

[heady iris]

ooh, i didn't realize you could do that

nice!

[chilly surge]

And as a side note, instead of writing:

Debug.Log("someVariable=" + someVariable);
Debug.Log("someOtherVariable=" + someOtherVariable);

You can just use tuple:

Debug.Log((someVariable, someOtherVariable));

And it will log both variables with their names, making debugging stuffs way easier.

[thick terrace]

yeah, you can even name them in local declarations like var x = new List<(int i, string s)>()

[chilly surge]

Tuple allows for a lot of neat stuffs, it's not a must use feature but it makes a lot of things easier and worth learning about.

[heady iris]

the funny thing is that i've almost done this by accident

trying to do it like in python

print(foo, bar, baz)

very neat; will keep that in mind

[runic linden]

Why does this

Debug.Log("Not successfull comparing " + speaker + " to " + _speakers[0].GetName() + ", " + speaker.Length + ", " + _speakers[0].GetName().Length);

debug this:

Not successful comparing Speakers: Froggo to Froggo, 16, 6

I am trying to compare the speakers name from my ink story (speaker) to my characters name in the scene (_speakers[0].GetName()) . The strings look the same in the console, but Unity tells me they have different lengths? 😵‍💫

[chilly surge]

Maybe invisible characters?

[runic linden]

Well apparently 😄

[chilly surge]

Can always do a trim before comparison but eh, still sounds kind of brittle relying on magic values.

[mellow sigil]

Not successful comparing Speakers: Froggo
"Not successfull comparing " + speaker

so the value of speaker is "Speakers: Froggo" (16 characters)

[runic linden]

LOL

I am so dumb

Thanks

Just printed out the first string in my console char by char and came to the same conclusion, which I should have done before asking here. Thanks for helping though.

[mellow sigil]

I usually debug like this when checking why strings aren't the same:

Debug.Log($"Not successfull comparing '{speaker}' to '{_speakers[0].GetName()}', {speaker.Length}, {_speakers[0].GetName().Length}");

[vestal arch]

tip: separate the logs instead of having them be a single message, so they come out vertically aligned and it's easier to spot differences that way

[mellow sigil]

The quotes then tell if there's extra whitespace etc

[static matrix]

is there a ui element for hover?

[leaden ice]

Can you be more specific? You want to detect a hover or...what?

detecting hover is done with a custom script with IPointerEnterHandler/IPointerExitHandler OR with an EventTrigger component.

[static matrix]

ah, ok

[urban light]

My trees are starting to look like this. Do you guys know what the issue might be?

[heady iris]

how are these trees being rendered?

are they part of a Terrain?

if so, do they have LOD models?

[urban light]

They are part of the terrain, and URP i think

And whats an LOD...

[heady iris]

LOD stands for Level Of Detail

You create multiple models with different quality levels

nearby trees use the highest quality model; distant trees use a super chunky one

In this case, though, I think this is a problem with your textures orw ith the tree shader

notice how that huge box perfectly encapsulates the actual branches

well, almost perfectly

It looks like the shader is rendering areas that should be transparent.

[urban light]

Hmm how would I fix that?

[heady iris]

show me the material you're using on the tree

[heady iris]

that's the bark, not the leaves

i forget which shaders you're supposed to use on terrain trees in the URP

[urban light]

Oh i found it, its soft leaves

it worked tyty

[heady iris]

You often see these "streaky" patterns when you render something that's supposed to be transparent

programs like Blender and Substance Painter will fill transparent areas with the nearest non-transparent pixel

this prevents weird color problems if you downscale the image

or if you sample slightly of bounds

[urban light]

Actually I just applied it to all of my leaves, and now

Some are still weird

[leaden ice]

#1062393052863414313

[knotty sun]

!learn

[tawny elk]

:teacher: Unity Learn ↗

Over 750 hours of free live and on-demand learning content for all levels of experience!

[leaden ice]

Hard work and determination

[knotty sun]

And I mean !learn

[tawny elk]

:teacher: Unity Learn ↗

Over 750 hours of free live and on-demand learning content for all levels of experience!

[vestal arch]

so what do you want to do?

[leaden ice]

To get good at Unity, you will need to spend a lot more than 750 hours

[vestal arch]

have someone make one for you?

[knotty sun]

then don't your choice, there is no such thing as a free lunch

[vestal arch]

that doesn't sound like making a game

try searching 2d tutorial

[leaden ice]

top down is just a camera angle my friend

or really

for 2d, it's just a mindset

and an art style

[vestal arch]

your choice

the unity learn is the only one this server can officially recommend, given that this is an official server

but the important thing is, you have to learn (as long as it's a quality source)

doesn't matter too much from where

if youtube fits better to your learning style, go ahead

[knotty sun]

if you think you can learn everything you need to learn from a single yt tutorial you are very much mistaken, but, you do you

[craggy oyster]

theyre saying you might be able to find a tutorial on copying things step by step but you wont know how to do anything which isnt really "making a game"

[vestal arch]

depends on the tutorial and the learner tbh

if you have the foresight to care about understanding rather than just copying, you'll figure out which tutorials are the good ones yourself and you'll be able to utilize their full content

[craggy oyster]

i have been making games on unity for 4 years now and I would say I actually started learning just this past year because prior to that i would just watch youtube videos

[vestal arch]

generally i would recommend text-based guides more but even the official source has a ton of videos so it's kinda hard to stick to that

easier to come back to reference, whether it's 5 minutes or 5 months after you read it

it's not a crime to ask for help lmao

[craggy oyster]

also if youre just starting out totally watch youtube videos and tutorials

but actually try to understand and try playing around with what youre learning

[spring creek]

Not true. The mods and residents frequently recommend other things. It's just that learn is better that pretty much everything on youtube.
Especially brackeys or code monkey which will teach bad habits

[craggy oyster]

i find unity learn to be way too boring to watch

idk if anyone else feels the same

[chilly surge]

Life isn't always fun.

[craggy oyster]

i think it was because i was watching the lower level tutorials though

[craggy oyster]

i didnt mean boring as in "Im learning but this is not entertaining"

but more of Im not learning anything new and and im not entertained

[spring creek]

Then move forward?

[craggy oyster]

this was almost a year ago

[spring creek]

If you aren't learning anything new, don't do that part of the pathway

[craggy oyster]

i tried checking it out and i stopped because i got bored

i didnt know they had higher level tutorials

until recently

[knotty sun]

If you want to be entertained, watch Netflix

[craggy oyster]

this guy man.

Yea just go ahead and disregard the explanation and try to sound smart

[vestal arch]

those are personal recommendations, i mean the command is part of the server

also i feel like learn can vary a bit. it's mostly quite good but there are some tutorials on there that aren't maintained and quite lackluster but seem to be the only thing for that topic for that level

[knotty sun]

I think you are confusing entertaining with engaging, that is all

[vestal arch]

he didn't mention either

[rigid island]

some of them just have a slow burn

[craggy oyster]

ive felt extremely entertained with many tutorials before idk what you mean

[vestal arch]

it wasn't in a pathway, it was just a beginner level tutorial with 1-line descriptions and not-great audio

[rigid island]

huh never seen that on learn

[vestal arch]

the majority are quite good, i just... don't know how i feel about the minority that aren't

[craggy oyster]

all i was trying to say was i tried unity learn a long time ago and i wasnt really learning anything because i was at a higher level than i thought i was

[spring creek]

I'm just saying it is not because they "can't recommend anything else"
It is because it is the best recommendation.
The other biggest unity server, which is not official, also has that one as a command

I have yet to see a better way to learn unity

[craggy oyster]

brackeys still exists 😅

or has brackeys been black listed on this server

lmao

[spring creek]

I explicitly mentioned that brackeys is bad. Teaches bad habits
#archived-code-general message
People learning from brackeys end up needing a lot of help here

[vestal arch]

ill see if i can dig it up

[rigid island]

brackys is bad, codemonkey is worse

[craggy oyster]

im not sure what youre referring to to be honest

[rigid island]

code monkey is worse becuse they imply what they do is "clean code"

meanwhile all their shit depends on watching other videos of his to do 1 thing
so all the code is scattered all over the place

[craggy oyster]

but they have a lot of good tutorials on just "setting things up" but its definitely true that youre not really learning much

[chilly surge]

I've only watched a few of Brackey's videos when I just started Unity years ago, their videos are almost the definition of "teacher reading texts off of PowerPoint without explaining anything" on top of all the bad practices they teach.

[spring creek]

I personally believe no one is worse than brackeys, but that is a good point

[craggy oyster]

ok thats a little too far from you guys

[vestal arch]

i feel sometimes one of the best resources in game dev is whatever genre freya holmer makes

[craggy oyster]

theyre not that bad code monkey has great overviews on c# in general for beginners

[rigid island]

ifeel like they took very decent learning tutorials on youtube and simply give it a good "production value" which skyrocketted his fame

[craggy oyster]

I leveled up my coding skills from a codemonkey c# tutorial once but I have never watched any of his other videos

[spring creek]

He is very personable. Great presenter.
But no, experienced programmers all hated him ime.

His advanced stuff is good. Just the beginner stuff is terrible

[lunar python]

well it is presented pretty good except for the fact that all his tutorials are beginner level

[chilly surge]

That was years ago so I can't recall the details, but the few I checked out are basically "here, just do this, do that, (no explanation why to do those things), voila look it works!"

[rigid island]

prettymuch, or the code is not very scalable

but i cant fault them for that cause i know personally how making videos can be a weird grind

you have to show useful information in a limited time (peoples attention spans are small)

mine expect you to already know the basics and I'm just showing neat features that I personally find useful

[spring creek]

And that is the reason I always recommend against youtube right there

[chilly surge]

Sure, which is why I don't think YouTube as a platform is a good medium for learning, because videos posted by the content creators who make a living out of them, are optimized to make money, not optimized to teach.

[lunar python]

you could read some articles made by random guy and it's very good

[craggy oyster]

speaking of this topic does anyone have any reccomendations on learning shaders

[spring creek]

Catlikecoding
Learn has some stuff too

[chilly surge]

The actual good learning videos? 40 mins long of someone with 5k subscribers who post a video every 2 years, no background music fancy transitions, no camera, just talking and straight to the point and in depth.

Learning really just can't be that fun.

[craggy oyster]

ive seen him before i think on an acerola video

definitely will check it out in my free time

[rigid island]

there are a few youtubers that make good videos strictly shaders though
like
https://www.youtube.com/channel/UClgoE54W_4rX7jzZGiCmrXw

[vestal arch]

no mic, just talking
lmao nice ninja edit

[chilly surge]

Typo 😓

[vestal arch]

i'd like to imagine a video with a vsauce voice echoing directly into your head

[lunar python]

freya holmer has a pretty good introduction to shader except it's 4 hour long

[craggy oyster]

will check him out too forsure

[craggy oyster]

i tried watching that video like a year ago and i couldnt understand a thing

maybe now i will be able to

[rigid island]

shes good but tooo mathy for my taste
thats a good thing though, shes goes into the actual math of the whole thing but I don't got patience for it lol

[vestal arch]

i might be conflating 2 separate tutorials. i found one with no text descriptions and... video with something to be desired, but not as bad as i remember

[wispy juniper]

I'm trying to implement custom Bloom effect in Custom Render Feature, totally bypassing URP's post-processing stack. I've started from the end of pipeline - from tonemapping.
So I've created simple render pass that grabs _CameraColorAttachmentA and tonemaps it into camera color target through custom shader. But I've encountered couple problems.

1. Hardcoding _CameraColorAttachmentA does not seem reliable, but I can't find a workaround
2. I see results of my render pass in frame debugger, but UPR's FinalBlit pass always overrites it in the end. I needed to push RenderPassEvent to AfterRendering+500, but I'd like to get rid of FinalBlit totally as my tonemapping fulfills all it functions anyway

[lunar python]

welcome to shaders, you need math bro

nowhere to hide

[craggy oyster]

my math level is intermediate algebra

[rigid island]

ofc! thats why i use premade ones xD

[craggy oyster]

computer science in uni will probably fix that though

[lunar python]

no

cs in uni is kinda basic

[craggy oyster]

i will expand on my math level in my free time forsure

[lunar python]

there are good math course in uni

if you want to ruin your life

[craggy oyster]

i actually enjoy math once i understand it

the problem is i dont understand it 💀

[vestal arch]

relatable

[tawny gale]

I'm working on creating a highly modular game that allows players to easily create mods with new levels. However, I've encountered an issue with asset bundles and Addressables – they don't seem to support the inclusion of code content, and as a result, the code isn't compiled when building the bundles. I'm looking for alternative approaches to address this challenge. Does anyone know of a method besides compiling the code separately, or have any other ideas to overcome this problem?

[pulsar holly]

My game object only moves 0.5f to the right when the euler anlge = 90 and not when it = -90. Here's the code: https://pastecode.io/s/r3eba4ng

[rigid island]

dont think eulerAngles eveer goes to - numbers does it ? @pulsar holly

ok yeah confirmed it, had to be sure lol

you cannot cause I remember having to do something like i found on internet
float angle = transform.localEulerAngles.x; angle = (angle > 180) ? angle - 360 : angle;

so basically it goes 0 to 360

[craggy oyster]

i just thought about this for a second and realized im finished if thats basic

[rigid island]

really? thats the reason why I didn't go for it

mainly scared of advanced calculus and shit, i rather spend time in a desert

[craggy oyster]

exactly what im afraid of rn

but i want to learn calculus either way

[vestal arch]

im not even in uni yet and i get the feeling of "oh no" from this

[rigid island]

see wanting is half the battle 🙂

[craggy oyster]

i think hes trolling though comp sci is legit calculus

[fervent furnace]

begin with machine learning stuff, full of vector matrix calculus

[rigid island]

yeah

[craggy oyster]

and like web development and backend development

[rigid island]

they just said they never been in uni

[rigid island]

none of those require calculus though lol

[craggy oyster]

i will obviously be disciplined in learning

not just want without the effort

[lunar python]

i already finished calculus in highschool

[vestal arch]

oh if it's machine learning im dead. ive had 2 years of it and it's my least favorite cs subject lmao

[craggy oyster]

i just said what i think most comp sci courses are

[rigid island]

its more like...backend developmenet, for like a nasa computer or something..

if you see what they did for the apollo computers, your brain melts

they literally used strings as wires, shit was incredible .

[craggy oyster]

i aim to reach that level someday

[craggy oyster]

ok not that far

keep me on monobehaviors 😭

[vestal arch]

wait till you see the dibehaviours

[lunar python]

cs in uni depends on what uni you go to

[leaden ice]

Sounds like a bug possibly, I'd report it as such.

[remote fractal]

my game has alot of spells, each of them are diverse. making a template for them is just not possible.
do i have to write code/make different scripts for each one of them or is there another way?

[leaden ice]

Spell/Effect/Ability systems can be quite complicated, it really depends on the scope and complexity of your game/combat system

You will almost definitely have to write some custom code for special effects

But you can generally reuse code for generic effects like "damage a unit"

[remote fractal]

aighty
time to run marathon

ty

[hollow hound]

How can I disable default collision detection/calculation done by Physics2D? I have custom logic for handling that and default collision affects performance

[leaden ice]

Can you be specific about what you mean by "default collision detection/calculation"? There are a lot of pieces to that

If you don't want to use the built in physics at all, you should remove all physics components from your objects

[remote fractal]

Physiscs.IgnoreLayerCollision()

or remove all colliders if ur custom logic doesnt use collisions

[leaden ice]

(or just setting the interaction in the matrix in settings)

[remote fractal]

yea taht too

[hollow hound]

I can see in profiler a lot of contacts happening and collision detection significally affects performance. Custom logic currently done by rigidBody.Cast, so preferably want to be able to use this while not using these Physics2D.FindNewContacts or Physics2D.ContactsCollide in addition

Seems like it detects collisions and calculates physics in addition to custom logic, basically doing the same thing again.

[glossy mortar]

why is my gameobject not pointing towards the mouse?

mousePosition = Camera.main.ScreenToViewportPoint(mousePosition);

Vector2 direction = new Vector2(mousePosition.x - transform.position.x, mousePosition.y - transform.position.y);

transform.up = direction;```

[leaden ice]

Why did you do ScreenToViewportPoint

transform.position is in world space

you need to convert the mouse position to world space

ScreenToWorldPoint is what you want

[hollow hound]

That way casting rigidbody won't work, right?
Ideally, I need to still be able to use rigidbody.Cast, but force unity to ignore these default calculation (the ones hapening in Physics2D.Step)

[glossy mortar]

and what do I do?

[leaden ice]

It should work fine

you can use whatever ContactFilter2D you want for a cast

[leaden ice]

I just told you

read what I wrote

[glossy mortar]

ah

It works now. I was just being stupid.

[opaque forge]

Guys I'm instantiating houses along edges of a polygon but obviously they will hit each other on the corners, I tryied using Physics.Checkbox to check if there is smth already without success. Here is how I use it:

 //move instantiation area to the left``` 
all the houses have a mesh collider attached to them, but it seems that this doesn't work. Can someone tell me if I'm doing something wrong or if there's a better alternative?

[rigid island]

try debugging your CheckBox

are you using Unity 2022 ?

[opaque forge]

yess 2022.3

[rigid island]

they have a neat feature to debug Casts/physics checks

[opaque forge]

I have been trying for 4 hours now lol

[rigid island]

i wonder if it works for Checkbox

[opaque forge]

nice do you have a link>

[rigid island]

https://docs.unity3d.com/2023.1/Documentation/Manual/PhysicsDebugVisualization.html#physics-debug-queries

have a short vid on it too if needed
https://youtu.be/zzFv6kp-XHA I just havent tried Checkbox. i usually use overlaps/casts

[opaque forge]

thx a lot I will look into it~!

[rigid island]

oh yeah it does say in manual too
The options are:

• Overlap queries
• Check queries
• Cast queries

so yeah check should work , you will be able to see it in playmode

start by the basics, see visually if its correct rotation/positions etc.

[opaque forge]

its weird because here you can see it clearly overlaps, but nothing in my checkbox

[leaden ice]

Are you doing this check in the same frame that you created the collider?

Also when you say... "polygon" what do you mean exactly?

PolygonCollider2D is a 2D collider if that's what you mean

[opaque forge]

like a polygon shape, I create a random area that has clean edges like this

        new Vector3(0,0,0),
        new Vector3(0,0,50),
        new Vector3(50,0,50),
        new Vector3(50,0,0)
    };``` 
and then make a mesh out of it

[opaque forge]

wdym same frame?

[leaden ice]

Same frame

Unity runs in frames

each Update is a frame

it renders once per frame

[opaque forge]

I run it in start

[spring creek]

Start is a single frame

[leaden ice]

Right so this whole process of spawning things and checking things is all within a single frame?

that would explain things

[opaque forge]

ahhh yes it is

[leaden ice]

You will need to run Physics.SyncTransforms() before every physics query you make

otherwise the physics engine will not know about your colliders or where they are

because that normally happens during the physics simulation step

or rather, between every collider spawn/move/rotate and doing a physics query

[opaque forge]

wow ok

[opaque forge]

thanks it works now hahah that was the issue indeed

[west socket]

Hello
I have a problem with the FBX exporter.
I try to export a skinned mesh, with a skin hierarchy, and the materials are exported without the textures.
I tryed to add the texture to the export, but same thing, it's ignored.
If i only export the texture, unity respond that nothing was exported

UnityEngine.Object[] objects = new UnityEngine.Object[] { exportObj, m_currentModel.texture };
ModelExporter.ExportObjects(m_exportPath, objects);

All the exported objects are created on the editor, and destroyed afterwards.
Is there a way to export a texture on an FBX file ? The doc say so, but i can't do it.

[magic harness]

Alright guys, i'm currently working in an RPG and as such, my mouse will have to be able to do a bunch of different things like:

1. Move
2. Target an Enemy (also do we want to auto attack like ragnarok)
3. Cast a skill if there is one selected
4. Pick up loot
5. Interact with an NPC

So.. i'm basically using the event system interfaces like IPointerHandler, IPointerDown to detect clicks in different objects, but the problem is, regarding movement, i need to detect the point where it has been clicked, so i do a raycast, but now i cant really select enemies anymore. Can someone give me some lights on how to get this done?

[leaden ice]

OnPointerDown etc. give you a PointerEventData struct parameter which contains all the information about where you clicked

foreach (var location in myList) {
  Instantiate(thePrefab, location, Quaternion.identity);
}``` Just something like this, no?

Or you mean you want the spawned object to walk along the list or something

[civic isle]

could you explain

[knotty sun]

And, please, write in full sentences

[civic isle]

lol

i would like the positions i have in the inspector on my object to carry over to the prefabs i instantiate

[leaden ice]

Then you'd do something like this:

public MyCharacter prefab; // set in inspector
public List<Vector3> locations; // set in inspector

void SpawnCharacter() {
  MyCharacter instance = Instantiate(prefab);
  instance.locations.AddRange(locations);
}```

or instance.locations = new(locations);

or just instance.locations = locations; if you promise never to change the list 😛

[craggy oyster]

common reference type W

[civic isle]

that was very fast

[leaden ice]

The basic idea is just... pass the list to the instance

[civic isle]

thank you

[leaden ice]

you're not asking for anything complicated

the basic idea is just pass the information to the newly instantiated object

[civic isle]

i have the instantiating and the list on separate scripts is that an issue

[leaden ice]

Nothing like this is an issue when you understand the basics of references and passing data between your scripts

[civic isle]

i should understand that

[ashen jasper]

question is there a way for a player to follow a spline at a certain point

Its only for a loop

[craggy oyster]

show your code if u dont figure it out

[spring creek]

Yes

[ashen jasper]

ok. how

[spring creek]

Not verified, but this looks fine
https://m.youtube.com/watch?v=4Y_7l95Q4uQ

[civic isle]

yeah i dont get it

[lean sail]

#archived-shaders

[tender plume]

oh

thanks

[craggy oyster]

and wheres the lists you want to be the same

[civic isle]

that is in zigzag

accsess it with zizag.targets

[craggy oyster]

and you want these objects ur spawning to have that list?

[civic isle]

yes

[craggy oyster]

do they have a script attached to them?

[civic isle]

they have the zigzag script attatched

[craggy oyster]

ok and wheres the original list that you want to have these objects copy from

[civic isle]

the zigzag script

unless if im not understanding

public List<Transform> targets = new List<Transform>();

this is in the script and is what i want to use

when they are instantiated, they spawn with the list, but the list is blank

[craggy oyster]

when you spawn each object do obj.getcomponent<Zigzag>().targets = zigzag.targets as praetor told you here

assuming you want all these gameobjects list to change when you change the list ever

a list is a reference type so if you change one they will all change just keep that in mind

[rigid island]

so put elements inside the list

where do you do that, you're not doing that in the code anywhere

they literally give you script exactly and you copied different lol

[civic isle]

erm

they are instantiated

cant put the positions on the prefab itself

i tried making the positions themselves into prefabs and then i can put them in, but that dosent work

[craggy oyster]

but you can change the instantiated objects script you already have a reference to it when you do GameObjec obj = ....

just do obj.getcomponent<Zigzag> and set the the list to anything you want

[spring creek]

Yes

[civic isle]

its over

[spring creek]

Captilization is important

[civic isle]

okay yah it works bnow

[rigid island]

Aslo you dont need to do GetComponent if you write it like Praetor wrote it

[dusk apex]

The ide should have provided you the correct method to call.

[rigid island]

You can spawn it directly as Zizag object

Zizag obj = Instantiate
obj.targets = etcc.```
ah yes `prefab` should be Zizag, You might need to drag object inside again inspector or might say mismatch.

[dusk apex]

Reference it as the correct type, drag the game object with said component type to the serialized field in the inspector and instantiate an instance (referenced as the actual type) without needing to call get component - profit.

[craggy oyster]

getting him to use getcomponent so he doesnt get overwhelmed

[rigid island]

TryGetComponent is better than GetComponent

is somehow its case its not found you dont get NullRef

[craggy oyster]

true but i dont think he understands an out

[civic isle]

confirm i dont know the meaning of alot of the words mentioned

very nice to try to help me

[rigid island]

yes the words sound scary but you're not doing anything crazy

[dusk apex]

//field definition
public Zigzag prefab;``````cs
//use case
Zigzag zz = Instantiate(prefab, ...);
zz.targets = ...
...```

[rigid island]

in simple terms , you can Spawn something directly as that Component instead of a generic GameObject

every Component has access to their holding gameobject anyway

[gray mural]

Because of the T Instantiate<T>(T original) where T : Object returning the T passed in the 1st parameter, making it able to spawn an Object, or any class derived from it

[rigid island]

yeah was gonna say that function is Object

not to be confused with the C# Object

they are different (hence why you cannot use ?? or ? on unity objects)

[gray mural]

Yes, there is a need to specify the namespace if both System and UnityEngine are used

[civic isle]

the console says that the object i want to instantiate is null

[craggy oyster]

check if u assigned it correctly in inspector

[civic isle]

for public zigzag prefab

[gray mural]

And that's the first thing you do when getting a NullReferenceException

[civic isle]

are u saying i should reference the script

[gray mural]

Of course, that's the object which is null.

[gray mural]

No, they aren't

They told you to check whether the object is assigned, obviously not, in the Inspector

[civic isle]

chillax

the object is assigned but its a script

Have i misinterpreted

[craggy oyster]

show your code again

[civic isle]

so what is supposed to happen when the zigzag script is referenced and then i instantiate it

[craggy oyster]

i think youre up to some naughty stuff

[civic isle]

lol perhaps

[rigid island]

it spawns the object as zigzag

[civic isle]

sorry about everything being named zigzag

[naive swallow]

It spawns the object you've told it to and returns a reference to its Zigzag component

[craggy oyster]

i see

[naive swallow]

Okay, and after changing the type of prefab, did you drag the reference back in?

[civic isle]

the zizgag script is infact placed in the editor

[naive swallow]

Can you show the inspector of SpawnZigzag?

[civic isle]

i was using a crab arm whilst prodotyping

[naive swallow]

Are you still getting this exception

[civic isle]

imagine if i was competent like how fire would that be

so now the error is that Object reference not set to an instance of an object

and when i click on that

[naive swallow]

what line

[civic isle]

it send me to StartCoroutine(InstantiateObjects());

[fervent furnace]

zz.targets = zigzag.targets;
```this line?

[naive swallow]

That line cannot give that error. Clear your console and run it again and check the updated line number

[civic isle]

i ran it and it still does that

[naive swallow]

Show the error

[leaden ice]

this code assumes you also have a ZigZag attached to the same object as SpawnZigazag

do you?

[civic isle]

if you mean zigzag script then no

spawnZigZag is on a gameManager

[leaden ice]

then that's why it's not working

[craggy oyster]

you wouldnt even be able to assign it then

[leaden ice]

zigzag = GetComponent<Zigzag>();```

this expects it on the same object

[civic isle]

my bad

[leaden ice]

So it's unclear what you're trying to do with that

[dusk apex]

Or just reference it through the inspector

[rigid island]

yes why are you copying list from a zizag on spawner ?

[craggy oyster]

i think if we asked him what he was trying to achieve this wouldve been over 1 hr ago

[rigid island]

also be aware when you do = you're assinging the same list to all of the ones spawned

since lists are reference types, you're passing the same list around

if you were to modify an entry, they all get the change (idk if u would want that or not)

[civic isle]

i think i would like all the instantiaed prefabs have the same list

[civic isle]

yes mb shoulda detailed

[rigid island]

the List should just be on a scriptable object but yeah that gets complex..here

cause that would allow you to spawn zizag already with that list in prefab

[civic isle]

i have moved the list to the same object now

they are together

there is an error on line 27, zz.targets = zigzag.targets;

[leaden ice]

"an error" is vague

[civic isle]

object reference not set to instance of an object

[leaden ice]

then you still haven't managed to actually get the two scripts on the same object

or you have another copy of this script where it's not there

[civic isle]

referencesInScene say there are both only on that

restart

I would like to instantate gameobjecs and have them move towards the positions defined in the list

[leaden ice]

Yes we know that

[civic isle]

when i did this with the gameObject which isnt instantiate it worked fine, but when instantiating more they would lack the positions on the list

[leaden ice]

You're going to need to show some screenshots of things

[civic isle]

Now that both scripts are on the gameManager, it instantiates the gameManager instead

[leaden ice]

because you're being very vague

[craggy oyster]

oh lawd

[leaden ice]

soinds like you assigned your prefab reference to the GameManager

instead of to your prefab

do you even have a prefab?

Sounds like you don't

For reference, a prefab would be an object in your Project folder

[civic isle]

i do have a prefab

[leaden ice]

not in the scene

[civic isle]

what should i screenshot pls

[simple egret]

And post your current code, if you put the script on the Game Manager and it instantiated a copy of the Game Manager, you did Instantiate(gameObject) at some point

Yep looks like you dragged the GameManager in, instead of your prefab

[civic isle]

that is the ZigZag script named prefab

[leaden ice]

that's not a prefab

prefabs live in the project folder

but honestly - if you wanted to just put that thing elsewhere in the scene, you could just instantiate it and it will copy those references automatically

[simple egret]

If it was the prefab, that field would have said "crab arm (Zigzag)"

[leaden ice]

no need for the code that copies anything at that point

[naive swallow]

Why did you assign this object as the prefab

What is line 26

[craggy oyster]

its the list he wants to assign to each spawned obj

[civic isle]

zz.targets = zigzag.targets

[leaden ice]

This makes no sense with your current setup

[craggy oyster]

youre spawning the spawnmanager

[civic isle]

i promise it is in the projecr folder

[naive swallow]

Where do you assign zz and zigzag

[leaden ice]

Yes and this code makes no sense with it in the project folder

[simple egret]

I don't think they know what they're doing, to be fair

[leaden ice]

They do not

[civic isle]

fact

[craggy oyster]

no shame in that youll get in with practice

[naive swallow]

Definitely. The issue is we assumed someone posting in general instead of beginner had any clue about logic and navigating the program

[leaden ice]

You either:

• Just Instantiate from an instance in the scene and it works automatically
• Have another copy in the scene to copy the list from and spawn a prefab (and reference that other copy properly) and then copy the list.

But you're kind of half doing one and half doing the other and it doesn't work that way

[dusk apex]

Show the (non game manager) prefab from your project folder in the Unity Editor

[civic isle]

yeah i thought i wasnt a begginer no mo

[fervent furnace]

once you start coroutine the ienumerator runs until the next yield statement iirc
btw fix your set up first

[craggy oyster]

https://thedecisionlab.com/biases/dunning-kruger-effect

[civic isle]

lol

yeah me

[craggy oyster]

you are definitely a beginner i would say im definitely a beginner too

[civic isle]

well if you are then i am

[craggy oyster]

if you are new to coding in general

i reccommend understanding an object oriented programming language first

get some basics down before you start making games

[civic isle]

i am not that new

i have never done anything with prefabs or instantiating them tho

[craggy oyster]

time != skill

[civic isle]

wait should i go back to my original script lol

[fervent furnace]

so you are new to unity engine

[craggy oyster]

if you dont know how to use prefabs you definitely should watch the beginner unity learn course

[civic isle]

is my original script fine to build off or should i use the new one

[naive swallow]

What are you trying to do

what is the end result you want to achieve

[civic isle]

i would like the instantiated objects to have a list of transforms on them in the inspector

[naive swallow]

Okay, and what is this list a list of

what is the purpose of the list

Where does its data come from?

[civic isle]

i will @ you when i am ready to respond

[robust whale]

How can I write the decrease if it is running and the increase if it is not running in a short way?

if (isRunning) {
 stamina -= Time.deltaTime / 4f;
}else{
 stamina += Time.deltaTime / 4f;
}

[leaden ice]

stamina += (isRunning ? -1 : 1) * Time.deltaTime / 4f;```

but this is kinda weird

because I would normally expect to be able to have different consumption and regeneration rates

Normally I'd do something like:

float changeRate = isRunning ? ConsumptionRate : RegenerationRate;
stamina += changeRate * Time.deltaTime;```

and ConsumptionRate can just be -0.25f and RegenerationRate can just be 0.25f

[robust whale]

That works

[simple egret]

Cursed alternate universe C# answer: stamina (isRunning ? -= : +=) Time.deltaTime / 4f

[gray mural]

May also be simplified to this in your case, but I would recommend having a variable for 4f.

stamina += Time.deltaTime / (isRunning ? -4f : 4f);

[leaden ice]

I assume this probably works in Ruby or something

[robust whale]

I wish this method would work xd

[robust whale]

Many thanks for the answer 🫡

[leaden ice]

Well you can kind of do this with delegates

[gray mural]

Or

stamina += (isRunning ? - : +)Time.deltaTime / 4f

[robust whale]

I don't think there is much need to complicate the system unnecessarily. It's too simple because

[leaden ice]

Here, the ideal form:

Func<float, float, float> addFunc = (a, b) => a + b;
Func<float, float, float> subFunc = (a, b) => a - b;

Func<float, float, float> func = isRunning ? subFunc : addFunc;
stamina = func(stamina, Time.deltaTime / 4f);```

[robust whale]

What exactly does the 3rd float value here do? I don't have much knowledge ab

[gray mural]

this is the return type

it takes float and float, and returns a float

[robust whale]

Haa okey ty

[gray mural]

(float, float) => float

[leaden ice]

it would be cool if you could say:

Func<float, float, float> addFunc = float.+;```

[naive swallow]

All right this is getting a bit too pythonic for my blood I'm out

[solar wigeon]

hello, can someone explain why my dash stops working after 3 dashes and the dash count stays at 1 eventhough its supposed to reset to 2 after 3 dashes

https://gdl.space/amorobuxoh.cs <-- dashScript

[leaden ice]

Well for one, this looks like a nightmare:

    private void LateUpdate()
    {
        if (dashCD1 == false)
        {
            Invoke("Dash1", 3);
        }
        if (dashCD2 == false)
        {
            Invoke("Dash2", 3);
        }
    }```

Also why is dashCount a float and not an int?

Anyway DashCD2 doesn't seem to be used anywhere

I mean you certainly set it true and false in a couple places but, it doesn't actually seem to be used in your dashing logic at all

This all seems kind of overcomplex to me anyway

[solar wigeon]

can u give advice what to do ?

[leaden ice]

I would do something much simpler

no Invokes etc

Something like this
https://gdl.space/uqipelibej.cpp

[solar wigeon]

wow i never thought of something like this thanks will take this advice

[leaden ice]

edited** ^

[solar wigeon]

but if you look in the code i want my UI to go open and close every time dash like in ultrakill

or in ghostrunner

[leaden ice]

I don't know those games but that's easy enough to add on.

that would be part of the actual dashing code

[solar wigeon]

but i dont know where i can add the on and oof for the ui

[leaden ice]

As I just mentioned....^

but also I'm not entirely sure what you mean by this so maybe some screenshots or video would help

[solar wigeon]

k let me send