💻┃code-beginner

[teal viper]

You follow the !learn courses and read the C# manual.

[eternal falcon]

:teacher: Unity Learn ↗

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

[dark kettle]

im in the code-beginner channel for a reason though. and I know the basics of programming :/

[radiant frigate]

alrighty i will try to

[silk night]

This channel is for beginner unity help, not beginner c# help

[dark kettle]

they are basically one in the same

[silk night]

No

[teal viper]

I've seen you trying to declare a variable in the method parameters👀

[dark kettle]

because you were suggesting something that confused me, and it looked strange to me too, but I figured if that was the right thing to do then I had more to learn

and I was asking for feedback cus it looked odd to me

and help on how to apply the logic correctly

instead I get told to go learn the basics, when im in a beginner channel

[teal viper]

If you knew the basics, you'd k ow that it's an invalid syntax. You'd also know what they actually meant.

[radiant frigate]

oh yeah, i meant c# specifically (idk if its good asking that in an unity server tho)

[teal viper]

C# manual

[thorn holly]

I like the codecademy beginner one personally but really any work

Very interactive

[dark kettle]

I figured it was invalid, but went with it anyway trusting their advice, but applying it incorrectly. and no, I dont know what they meant, cus they werent really being clear enough for me

[radiant frigate]

dont i need to instal smth so i can write the code and display the results? (like a console or smth)

[teal viper]

Also just google. There are tons of materials online. !learn also covers some C# in unity context.

[eternal falcon]

:teacher: Unity Learn ↗

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

[dark kettle]

also, this channel is for c# on top of unity, cus its in a scripting sub-category. plus says CODE-beginner

[teal viper]

Visual studio

[rich adder]

download more ram

[thorn holly]

If you’re going to implement a solution, make sure you actually understand what it does instead of just copying and pasting

[radiant frigate]

wasnt ram in-real-time computer capacity to have things open?

[dark kettle]

anyways, I am sorry for taking my frustration out on yall, im just tired of being told to "google it", "go to basics", and "read the documentation" when I am asking about a simple problem in a beginner-oriented channel. I am well aware that I need to learn stuff, but I am trying to find a solution to a problem

[rich adder]

Random Access Memory, yes its whats being stored in realtime

[radiant frigate]

and why do i need to instal more? ( also, isnt that impossible?)

[thorn holly]

Okay, but again, blindly implementing a solution without understanding what it does doesn’t really accomplish anything

[thorn holly]

And if you’re told to google it, then it’s a very googleable problem

[dark kettle]

it solves my problem and teaches me something along the way

[rich adder]

we did give you simple solutions but if you cannot understand the suggestions, its best you learn those basics

[thorn holly]

Copying and pasting teaches you nothing

[dark kettle]

copying and pasting without taking the time to look at what you are copying/pasting, yes. but thats not what I am doing

[dark kettle]

I tried the solutions and they didnt work

[rich adder]

looking and understanding are two different concepts

[dark kettle]

in order to understand, you have to look

[rich adder]

tell me how a debug log I wrote "Doesn't work"

[radiant frigate]

also, navarone, do you want to see on what i spended like 11 hours yesterday?

[rich adder]

cause that would be amazing

[dark kettle]

oh the debug code im sure worked, but it didnt activate, which means theres something else going on

[rich adder]

where did you put it then ?

[dark kettle]

where im having the problem, but before the if statement

[rich adder]

then your Trigger never runs

if debug is not printing

[dark kettle]

so how do I fix the trigger

[thorn holly]

There could be many issues with your trigger

Show it in the inspector is a good first step

[rich adder]

go through this
https://unity.huh.how/physics-messages/3d-physics-messages

its a very simple click guide make sure u follow through it

[dark kettle]

the first image is where the script is applied, the second image shows where the trigger is. its a child of defaultcube, which is what the building is determined to be

[rich adder]

none of which have a trigger collider

oh wait nvm second one but you're missing the Rigidbody

[dark kettle]

I cant have the defaultcube have a rigidbody, cus then the swinging stops working

[rich adder]

wdym

if its kinematic it should make no difference to how your swinging should work

[dark kettle]

idk, cus the swinging mechanic isnt mine, i just know I tried the rigidbody earlier and it didnt work

as in, you cant grapple onto the building

[rich adder]

this is why people say "Debug it"

"Idk" is pretty much not gonna get you far

you have to find out

[dark kettle]

idk what causes things to not work with rigidbodies, though

[rich adder]

we can't mind read the entire project and its code, learning to debug should be your first step before even learning code

[rich adder]

we can't know what you did exactly 🤷‍♂️ its all speculation

anyway using triggers isn't the only way, more methods exists that dont rely on Rigidbody
like Overlaps and such, but those require a lil more work to implement compared to OnTrigger

[thorn holly]

Yoinking other peoples code as a beginner can get really confusing when you implement your own features

[thorn holly]

A good first step could be understanding how this swinging mechanic works

[rich adder]

its like stealing a car without knowing how to drive

[thorn holly]

But, once you become a more experienced coder, you can steal enough cars to cause a global transportation crisis

[rich adder]

Gone in 60 Secs

[dark kettle]

im here, I was doing something

[thorn holly]

So yeah, first step is either making your own swing mechanic or understanding how the other one works

Otherwise you’ll run into similar problems over and over again as you add new things

[dark kettle]

while i start looking through the code, what are some things to look out for? what do rigidbodies not work with?

[rich adder]

what exactly wasnt making it work ? explain what "didnt work" meant

[thorn holly]

Don’t look for anything specific, understand how every aspect of the swing mechanic works and then it should make sense why the rigidbody screws it up

[thorn holly]

And also, this ^?

[dark kettle]

in the game, theres a red orb that shows where the cursor is or the nearest available spot for the grapple raycast thing to align to. it shows up on the building before rigidbody, and doesnt show up after, thus you cant grapple swing from that spot

[rich adder]

is the building marked as static on the inspector?

maybe the rigidbody was pulling the collider down

[dark kettle]

how do i find the static state

[dark kettle]

oh, its not static

so if i make it static, the rigidbody could potentially work then?

[rich adder]

hmm adding rigidbody wuold normally make the building fall

nahh you would add it as kinematic

[dark kettle]

i turned gravity off

when i did the rigidbody

and locked the rotation and position

so, instead of doing rigidbody, add a kinematic?

[rich adder]

kinematic is part of rigidbody

[dark kettle]

kinematic fixes the swinging issue, but having a rigidbody doesnt seem to fix the triggers

the start works though

[rich adder]

test OnTriggerStay

just the log

[dark kettle]

weird that doesnt work either

as in, no debug pops up

so therefore, no trigger

[rich adder]

did you give the building both collider and rigidbody

and which one has trigger

[dark kettle]

buildingprocedural_gen has the script, refers to defaultcube, defaultcube has rigidbody and a meshcollider, and its child, new_building_trigger, is the box collider set to be a trigger

[rich adder]

trigger collider needs the script or the rigidbody need script, either one

also u have to show hierarchy its hard to tell who child of what

[dark kettle]

sorry, here you go

ill try putting the script on default cube then

oof I put it on default cube, and now my cursor is locked and I cant stop the play

[rich adder]

You should have not put it on the cube you spawn

you crated an infinite loop

recursively

[dark kettle]

then what should I put it on, if I cant use the empty I was using previously or the cube

[rich adder]

never good idea having object spawn itself

like why would building spawn, detect another building and spawn another copy and keeps going without reason to stop

you only need 1 spawning script

[dark kettle]

you told me that the script needs to be on the building, so thats what I did lol

[rich adder]

that was before I saw trigger was child of each building

your setup was confusing tbh lol

[dark kettle]

fair lol

[rich adder]

can you tell me again why is building carrying a trigger to detect another building ?

[dark kettle]

that... is an excellent point

I thought the trigger box would detect the player entering/leaving though lol

[rich adder]

well how do you want them to spawn exactly ?

yeah but you're checking Tag of a building not player

[dark kettle]

I was wanting a building to spawn if the player enters the trigger, and the building destroying when the player leaves its zone

[rich adder]

is player rigidbody ?

[dark kettle]

no

[rich adder]

Character Controller ?

[dark kettle]

wait I was wrong, yes

rigidbody

[rich adder]

ok so keep the trigger on building put the tag there, then the script should be maybe on the player

each time you enter a trigger you can find the parent /building it is and + that to new spawn pos

[dark kettle]

so the only thing im changing is the script location to player for this test

[rich adder]

yea first see if the log prints when you enter newbuilding trigger

[dark kettle]

ok sweet the code works now! now I gotta tweak it, cus it was like a building-apocalypse lolll

and it spawned behind the player, which i dont want

woo progress!!!

[rich adder]

hmm yeah you would need to work with some trig math here if you want a good result

Dot product would be your best friend

luckily unity has these built in

[desert flume]

slider.OnValueChange doesn't work

[rich adder]

debug it

[desert flume]

In Start()

        slider.onValueChanged.AddListener(OnDifficultyChange);

    private void OnDifficultyChange(float value)
    {
        Console.WriteLine(value);
    }

[rich adder]

Console.Writeline wont work in unity

use Debug.Log

[desert flume]

ah ffs

ty

[manic quiver]

Anyone know why this doesn't work? I want the speed of the particles to be proportional to the speed of the rigidbody2D (rb2d)

    ParticleSystem p = Instantiate(leaveBehind, transform.position, Quaternion.identity);
    var main = p.main;

    main.startSpeedMultiplier = rb2d.velocity.magnitude;

[rich adder]

is the script running?

[manic quiver]

Yes. To be exact there are more lines after this that work just fine like
main.startColor = particleColor;

So the references and all are there, but startSpeedMultiplier doesn't seem to do anything?

[eternal needle]

maybe you just wanna change the startSpeed specifically, https://docs.unity3d.com/ScriptReference/ParticleSystem.MainModule-startSpeed.html

[manic quiver]

I've tried that, problem is that means all praticles have the same speed. I want them to be random between two constants but scale with the velocity

Alrighty resolved. Solution: I don't know dawg. But I scaled the particle's simulation speed and lifespan propotionally instead and that kinda is the same thing.

[valid mist]

Hi Everyone,

I have 3d avatar character game object and camera in Unity Scene.

1. How can I restrict the movement of camera when distance between character object and camera is very close?
2. Is there any option to restrict the camera movement using object collision?
3. How can we restrict camera movement within a specific boundary using C# script?

Kindly anyone provide suggestions to achieve it.

[rich adder]

easiest way would probably be starting with Cinemachine

[dark kettle]

how can I get the ontriggerexit function to destroy the building the player is leaving? not necessarily the building being created in ontriggerenter, but the one the player is currently leaving?

not only does the on trigger exit not work, but it causes buildings to stop spawning

[rich adder]

dont post screenshots of !code

[eternal falcon]

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.

[dark kettle]

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

public class ProceduralGen_Building : MonoBehaviour
{

    bool IsCollision = false;

    // Start is called before the first frame update
    void Start()
    {
        Instantiate(Building, new Vector3(Random.Range(40, 61), 0, Random.Range(40, 61)), Quaternion.identity);
    }

    // Update is called once per frame
    void Update()
    {
        //transform.position += new Vector3(0, 0, -10) * Time.deltaTime;




    }

    private void OnTriggerExit(Collider other)
    {
        IsCollision = false;

        waitFiveSeconds();

        if (IsCollision == false)
        { 
        other.gameObject.tag = "Destroy";
        }


        if (other.gameObject.CompareTag("Destroy"))
           {
               Destroy(Building);
           }


    }


    public GameObject Building;

    private void OnTriggerEnter(Collider other)
    {
        IsCollision = true;

        Debug.Log(other.gameObject.name + other.gameObject.tag);

        if (other.gameObject.CompareTag("New_Building_Trigger"))
        {
            Instantiate(Building, transform.position + new Vector3(Random.Range(40, 61), 0, Random.Range(40, 61)), Quaternion.identity);
        }
    }

    private void OnTriggerStay(Collider other)
    {

        Debug.Log(other.gameObject.name + other.gameObject.tag);

       
    }


    IEnumerator waitFiveSeconds()
    {
     
        yield return new WaitForSeconds(5);
    }





}

[teal viper]

Debug wether OnTriggerExit is even called

[rich adder]

also you cannt start coroutine like this waitFiveSeconds();

since it does not do what you think it does

[dark kettle]

it shows up or something cus it causes the code to stop working or stop spawning stuff

[rich adder]

its just empty

[dark kettle]

so do waitFiveSeconds(5);?

[rich adder]

wat no, this isn't a guessing game lol

[dark kettle]

that wasnt a guessing game, that was me thinking thats what you meant and seemed logical to me

[rich adder]

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

things that need to wait go **inside **the coroutine

[teal viper]

"it shows up or something" is not how you debug...

[desert flume]

how can i hide a ScrollView without disabling it?

[royal linden]

how many vertexs can i have on a model without losing performance

[timber tide]

somewhere between 1 and 1 bazillion

[rocky lava]

does anyone have an idea of why this is caused? im not that good with unity and doing this via a tutorial so i dont really know what everything means

[timber tide]

well, for one you should connect vs to unity

[rocky lava]

i did yesterday, i updated it via the thingy someone linked

[teal viper]

How many dollars do I need to feel happy?

[teal viper]

It's still not configured !ide

[eternal falcon]

💡 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

[rocky lava]

im confused then? because i followed the first and the 2nd one, which one do i use them?

[teal viper]

The second should be enough

Share a screenshot of the unity workload installed in vs and the correct ide selected in unity external tools

[rocky lava]

you mean this right?

and then you mean unity version? or?

[teal viper]

This and unity workload in VS

It's one of the steps. You should know it.

[rocky lava]

you want me to take a pic of this? i woke up like an hour agho with like 3h of sleep im not functioning well im so sorry

[teal viper]

The whole window with unity workload visible

It doesn't look like you have it from this screenshot though

[teal viper]

Okay. I assume you did install it before and didn't just tick the checkbox now.

Try regenerating project files in unity external tools.

[rocky lava]

this is good right?

[teal viper]

I think so. Can you take a screenshot of the whole window?

[teal viper]

A bit more up

I want to see what assembly it detects.

[teal viper]

Yeah, that's configured correctly.

[rocky lava]

thats iut

because i did this from a tutorial

and i deleted EVERYTHIGN thinking i made a mistake and followed everything as close as possible, but it's the same mistake

[teal viper]

The error implies that there is no EnableOutline() method in the Interactable class. Is there?

[rocky lava]

uhh, you mean something it can refer back to? because that EnableOutline() is the first time i've used it

[teal viper]

Didn't you say it's from a tutorial?

[rocky lava]

except for this script

yes

[teal viper]

Now compare the name of the method you call and the one defined in this class

[teal viper]

Wdym?

[rocky lava]

EnableOutline is only mentioned in this script and the other

it also says 0 references

[teal viper]

Yes, because you're not calling it from anywhere

[languid spire]

OutLine and Outline ?

[teal viper]

And the method you're trying to call doesn't exist

[rocky lava]

i might

just be stupid

🥹

[dark mirage]

hello I'm quite new at unity, is there anyone who could lend me a hand and teach me the basics? I would like to make a game but I'm currently doing all the planning and animation and coding is just overhelm me a bit yet

[static bay]

I would suggest picking up the basics of C# first. A lot of people start out with Unity tutorials that SOUND simple, but without the fundamentals they quickly get overwhelmed.

Once you understand variables, methods, fields and classes, you should have enough to bite into the simple tutorials without feeling immediately lost.

[dark mirage]

I have the basics of programming in other languages (html,css,java,python)

but I understand what you say

I just got really excited and wanted to jump into

[royal linden]

idk seems laggy to me

[dark mirage]

it would be much better if I could find a cooperative programmer and leave the unity to him but I cant afford it

[static bay]

Woah. How many verts does this thing have?

[static bay]

And what would you contribute?

[royal linden]

idk 4m i think

[static bay]

Okay.

Well.

That's probably too much.

For comparison high detail human models usually have 20-60k tris.

[teal viper]

!collab👇

[eternal falcon]

📢 Collaborating and Job Posting

We do not accept job or collab posts on discord.
Please use the forums:
• Commercial Job Seeking
• Commercial Job Offering
• Non Commercial Collaboration

[static bay]

Where did you get this tree?

Like I work with high detail brain models that usually clock in at 140k per hemisphere.

So 4m is like.

Nuts.

[teal viper]

I mean, it depends. If he's making an ant simulator and the tree is the whole world, then it's fine.

[static bay]

Alright that's a fair one I guess.

[dark mirage]

I'm making the art and animation also I have the game design

[dark mirage]

thank you

[static bay]

Well what does your art look like?

[errant canopy]

How does it work with OnTriggerEnter for child objects when having multiple colliders on an object?

[dark mirage]

pretty basic 2D yet, but improving every day

also I have a friend who working on the sound effects and the music

[teal viper]

Wdym by "how does it work"? It works the same as with one collider.

[errant canopy]

From what I've read on forums, OnTriggerEnter should still be fired off even if put on the parent object, but I don't seem to be getting a response.

[teal viper]

It would be called either on the collider or on an attached rb. If the collider belongs to the rb.

It wouldn't be called on the parent for no reason

Wouldn't

[errant canopy]

Ah right, just asking, but would it be bad practice to move a trigger to use it as a "second" trigger?

[teal viper]

No clue what that means

[errant canopy]

Just to give a short explanation what I'm doing, I wanna check if the player touches the left trigger and then activate the right trigger to see if the player goes back.

So would it be bad practice to change the transform position and just write some code around that? Or is there a better/easier solution

[teal viper]

That sounds fine.

[teal viper]

Change position of what?

[errant canopy]

The collider.

[teal viper]

Why change it's position?

[errant canopy]

To check if they go back as I said

[teal viper]

Just use a second trigger🤔

[errant canopy]

Yep that's what my original question was about, but I can't add 2 colliders to the single object 😁

Doesn't allow me to change the second collider

[teal viper]

You can...🤔

[static bay]

I'm actually not even sure which collider causes an OnTriggerEnter first if there's multiple on the same object.

You'd think it would go down the list but knowing Unity it might be random.

[errant canopy]

void Start()
{
    firstCollider = transform.GetChild(0).GetComponent<BoxCollider>();
    secondCollider = transform.GetChild(1).GetComponent<BoxCollider>();
    firstCollider.enabled = true;
    secondCollider.enabled = false;
}

I've tried this

[static bay]

Well, "undefined".

[teal viper]

That's 2 colliders on 2 objects.

[teal viper]

That's 2 colliders on 1 object

Which of the setups do you have actually?

[errant canopy]

I just added this to show you I can't change the second collider if 2 are on 1

[errant canopy]

Right now I have this.

[teal viper]

You should be able to

[errant canopy]

But the problem is that I can't get the trigger from them in the parent object that has the script.

[teal viper]

But yeah, it's better to have 2 objects

[errant canopy]

The picture shows I can't 😁

The button is missing

[teal viper]

It doesn't show me anything like that

[teal viper]

Aah, that

You can still edit the numbers in the inspector

[errant canopy]

But if I then call OnTriggerEnter

Which would it get

And how would I disable the SECOND component

[static bay]

You can expose fields in the script for the box colliders and just slot them in

then modify them in code

[errant canopy]

Ah right I can drag them as well

Sorry yes

[teal viper]

The one that has the collider

[errant canopy]

Alright perfect let me try

[static bay]

And if you want to shoot yourself in the foot you can use GetComponents and then access the collider components with [0] and [1] 🙃

[visual hedge]

@teal viper can you tell me if splitting one big coroutine in bunch of smaller ones is a good idea?)

[static bay]

How big we talking?

[visual hedge]

Around 350-400 lines

Maybe less. Maybe 200-250

[teal viper]

Mm.. depends on how you do it. What's the purpose of splitting it though?

[visual hedge]

I have a coroutine that runs for each unit acting in turn-based game. And there are 3 paths split by if statements depending on whether unit uses magic, melee or non-damage ability. So was thinking if splitting them into 3 diff coroutines would be a thing

[static bay]

That sounds pretty long. I would only split it up if the actual yields are complicated. If it's just a lot of regular code split up by the occasional yield return new WaitForSeconds then I'd just take the complicated code out, put them in methods, and call the methods.

[visual hedge]

Having those "yield return new waitforseconds" is crucial there... thats why its a coroutine

[teal viper]

Sure, why not

[static bay]

Sure but if the code is like

yield return new WaitForSeconds(2);

//Spawn and fire magical bolt at target (~100 lines.)

yield return new WaitForSeconds(1);

Then just move the complicated logic out of the coroutine into methods, and then just call the methods.

[keen dew]

You can move the yield lines to methods as well, if you call them with yield return OtherMethod();

[desert flume]

How can I hide an object without disabling it

because if i disable it ill be disabling the box collider

[static bay]

disable its renderer

[desert flume]

fair

[visual hedge]

Actually great idea. That's what I was thinking about. Thank you!

[nimble apex]

i only have 2-3 hrs left for this

so i have two 3D objects but display with an orphographic camera so they look like 2D UI
they are processed with a plugin called megafier

and displayed by a special camera

however, one of the object size will go off, like it couldnt maintain the same ratio under different resolution ratio

my question is, can you force the camera that display the gameobject , to display it with a fixed screen size?

[queen adder]

Hi , anybody can send a tutorial for make main menu for a 3d game ?

[keen needle]

string timeStamp = System.DateTime.Now.ToString("yyyy-MM-dd h:mm");
string filePath = Path.Combine(Application.persistentDataPath, "datos_" + timeStamp + ".txt");
I have problems with the date format but I don't know why

[rocky lava]

Does anyone have any idea why i cannot pick this up? it's supposed to have an outline around it when im close to it with some text saying to pick it up, but when i press F nothing happens

it's also supposed to dissapear when i press F

[keen dew]

Are you planning to tell what problems you're having or are we supposed to guess?

[honest haven]

Where are you calling CheckInteration ?

[timber tide]

Ya need to start learning how to debug your code and such that when I look at this code it should be riddled with debug.log statements

[rocky lava]

it's unused i think

[honest haven]

ok well debugthe currentInteractable make sure its not null

[rocky lava]

im doing it via a tutorial and i really dont know how to make like, any code at all

[keen needle]

sorry, I want to create a .txt with that name, and it gives an error Could not find a part of the path "C:\Users\PRACTICAS1\AppData\LocalLow\DefaultCompany\AVRIX\datos_ 2024-03-15T10:09:57Z.txt".

[wild fox]

and how to enable the renderer again once the player dies/scene ends/next level

[honest haven]

        {
            Debug.Log("pressed");
        }``` learn about debug

[keen dew]

You can't have the : character in filenames

[rocky lava]

that works

i just don't know why it doesn't outline and pick up the object

i extended the player reach thinking that might help, but that also did nothing

[honest haven]

ok so that works then, so you next debug should be the currentInteration.Interact

[keen needle]

ty

[honest haven]

I dont no your full script but im guessing your using ray cast to detect the hit to pick it up. Add a fixed update and call your ray cast funtion inside that. private void FixedUpdate() { CheckInteration(); }

[rocky lava]

you mean right here?

also yes it's raycast

[honest haven]

yes inside there add a debug.log to see if your even calling it

if it does not work add this private void FixedUpdate() { CheckInteration(); }

[rocky lava]

where would i add the debug? im a 3d artist i dont know anything abt this 🥹

im so sorry

[honest haven]

top line inside this function

[rocky lava]

ok so where the { is

[honest haven]

try it

[rocky lava]

both get a whole lotta red lines on the code under it

[honest haven]

i would geuss then its in the wrong place

show me

[honest haven]

no revert that.

you have deleted your original function name

Fixedupdate is its own function

[rocky lava]

OH

[desert flume]

the vertical layout group im using is forcing the panels inside to occupy 100% of the content

way too tall

[rocky lava]

im lost

like i know what it means, i just dont know how to tie it together into like

actual code

like where do i put this n that

[honest haven]

void CheckInteraction()
{
RaycastHit hit;
}

this is your function

[desert flume]

nvm i fixed it

[honest haven]

to debug it do

void CheckInteraction()
{
Debug.Log("am i being called");
RaycastHit hit;
}

[radiant frigate]

nice pfp

[desert flume]

ty

[honest haven]

if that is being called then you need to keep going down your list with debugs, you can even check varables.

if that debug is not being called then that means you are not calling it on that script

[rocky lava]

uh i dont think im calling it

this is correct right

i feel like my issue is with checkinteraction then

[honest haven]

private void FixedUpdate()
{
CheckInteraction();
}

void CheckInteraction()
{
    Debug.Log("am i being called");
    RaycastHit hit;

so then i would call it and check ifthat fixed it

[honest haven]

raycast is a physics function so your want to call it in fixed update rather then update as its physics

[honest haven]

ok so is that working because you added fixed update?

[rocky lava]

yes it's highlighting now

i love you oh my gofd

[honest haven]

there you go

take a debug couse and also learn c# basics

other wise your always running uphill

[lament prism]

I am getting an error called Boxcollider does nut support negative scale or size where can I get help with this issue?

[wintry quarry]

Make sure your object doesn't have negative scale

Or size

[lament prism]

I was watching a tutorial and he did the same thing but he wasnt getting any errors. what should I do then if I want a reversed object?

[wintry quarry]

Why do you have a 3d collider on a 2d object, is that intentional?

Anyway you can just rotate it 180 degrees instead of negative scaling

[lament prism]

oh no its a mistake

[lament prism]

alright thanks

[radiant frigate]

okay so i have different types of enemies and i want to make a "wave manager" that spawns them randomly, this is my aproach:
New enemy generation system:

Create a list

loop:
Have x amount of coins depending on the wave
Let each enemy have a value in coins
add enemies to the list randomly until you reach 0 coins
Start instantiating enemies while deleting them from the list until there is no more enemies remaining
set the amount of coins to x number for the next wave
Increase wave counter

(would this make sense?)

i´ve just learnt how arrays and lists work and thought this could be a good way of using them

[rocky lava]

its fine for the guy in the tutorial?

top one is mine

[hexed terrace]

Look at what is different on the line with the error

It’s not the same

[rocky lava]

OH

i see it

sorry im like tunnel visioned

[hexed terrace]

we’ve all been there

[keen dew]

Some more often than others

[lapis yew]

The forbidden semicolumn

[radiant frigate]

are the instructions "return,jump,break,continue and goto" something that i should learn as early as possible?

[timber tide]

take you 2 seconds to learn it

[teal viper]

You can skip the jump and goto. Everything else is crucial. You can't really write functional code without it.

[radiant frigate]

then imma just do it

[radiant frigate]

is continue that important?

[teal viper]

Yes.

[radiant frigate]

alright

ty!

oh yeah btw

[radiant frigate]

if you want to (dont feel obligated) and have some time, would this make sense

[teal viper]

Makes sense.

[radiant frigate]

yayyy

tyty!

[weary reef]

Hey! I probably have a stupidly simple question, but here we go: What would a GameObject that shows a 2d matrix on the editor, look like? (as a script)

So in practice I want to see a 500 by 500 grid on the screen (2d) and every other block be white/black.

Background: I'm trying to figure out how to just output stuff in the world, from a empty gameobject script. I haven't done unity or c# before, but I work full time on typescript/python.

[teal viper]

That would probably require a custom shader.

[weary reef]

Hmm, got some links towards that?

I can probably figure it out, with the right direction 😅

[teal viper]

Google unity grid shader

Probably not gonna be exactly what you're looking for, so you'll need to figure it out from there.

[weary reef]

Hmm, let me see, just a second

This at least one of the things I'll need a bit later. I think I'm looking for something more basic like console.log("X") in JS that would output into the console, but instead it be Some C# code in GameObject script -> Box/Grid shown in scene view

Maybe I'm looking for the information/docs on "how unity turns gameobjects into stuff in game world"

Sorry for being a bit weird with the questions

[teal viper]

It doesn't.

[teal viper]

There's Debug.Log() if you're looking to log something in the console.

As for documentation, there's !docs

[eternal falcon]

Documentation

Get the most out of Unity Editor by accessing our documentation!

💻 API

📖 Manual

[teal viper]

And !learn

[eternal falcon]

:teacher: Unity Learn ↗

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

[humble prism]

Hi guys I gave a problem with my script I am making a horror game and when there's a Jump scare there should be a Chromatic Aberration effect which show up to this point everything works, but the main problem is I am trying to let it fade out, and it doesn't work I tried Using an I Enumerator and Also a method i am also calling it right but i doesn't want to work

void HandleChromaticAberration()
    {
        if (UseChormaticAberration == true)
        {
            if (chromaticAberration != null)
            {
                chromaticAberration.active = true;
                chromaticAberration.intensity.value = 0;
                isFading = true;

                if (isFading)
                {
                    intensityTimer += Time.deltaTime;
                    float t = intensityTimer / fadeDuration;

                    chromaticAberration.intensity.value = Mathf.Lerp(1f, 0f, t);

                    if (intensityTimer >= fadeDuration)
                    {
                        isFading = false;
                    }
                }
            }

        }
        else
        {
            Debug.LogError("Chromatic Aberration reference is null.");
        }
    } ````

[teal viper]

Share !code ptoperly

[eternal falcon]

Posting code

📃 Large Code Blocks

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

📃 Inline Code

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

[weary reef]

Hmm. So to just splurge what I have here: I have a 2d matrix data source and all of the "cells" in that 2d matrix hold the following info type: string; color: string; opacity: number;. I'd like to display that in the game world (as 2d), but from a single GameObject

[teal viper]

You probably mean a 2d array? Not a matrix.

You have several options: either instantiate objects(planes or cubes) for each cell and change their color or write a custom shader to draw your grid in one GPU command.

[teal viper]

What exactly doesn't work? Are there errors? Compile errors? Runtime errors? Does the code even run? Where are you calling the method from?

[weary reef]

Ah right, yeah that's what I meant 😅

How well does Unity handle a sizeable amount of objects? Let's say 6 million?

[teal viper]

It depends on how you render them.

It can be anywhere from very fast to slideshow.

[weary reef]

Hmm, alright. I'll probably go with the custome shader route, since that is more or less guaranteed to not be a slideshow

Thank you a ton!

[humble prism]

the code is running it show up the effect but i dosent decrased it

on screen

there are no errors or compile errors

 void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Player"))
        {
            Object.SetActive(true);
            HandleObjectAnimation();
            HandleChromaticAberration();
            if (UseSound == true)
            {
                TriggeredSound.Play();
            }
        }
        gameObject.SetActive(false);
    }```

there is the method begin called

[radiant frigate]

does someone know why goto doesnt work here?

[keen dew]

Labels end in a colon, not semicolon

[radiant frigate]

in this: , ?

[keen dew]

but please don't even try to learn goto. It's generally considered bad practice

[radiant frigate]

then what should i use?

i´ve learnt goto break and continue

[keen dew]

a while loop, in this case

which you already have so the goto is pointless

[radiant frigate]

its already in a while loop but since i dont want the money to go into "debt" i want that whenever it buys a random thing that has more price that it can afford it gives back the money and goes back to buying other item instead

[keen dew]

You can do that with just continue

[radiant frigate]

but then it doesnt go back to the start does it ?

[keen dew]

Yes it does. That's exactly what continue does.

[radiant frigate]

ohhhh

then i understood what it does completely wrong

which makes sense since then it would have no use

[radiant frigate]

ty and sorry for my dumb ahh

oh another thing

nvm i figured out a tricky way

[rancid tinsel]

any idea what this could be about?

ive never encountered this error before

i have a feeling its because its trying to access a script from a different scene

[teal viper]

So it's only called once. Obviously, any logic that runs over time wouldn't work.

[teal viper]

Definitely that. Unless you have several scenes loaded at the same time, objects in the othe scene don't exist.

[rancid tinsel]

im assuming DontDestroyOnLoad only works if changing scenes via script rather than loading them in the editor

[teal viper]

null reference exception means that you're trying to access somethin in null. You can see the line that causes the issue in the callstack.

[teal viper]

Yep.

It only works at runtime i think

[rancid tinsel]

ok sick so this should work when i make a scene manager

[limber valley]

Hi guys, anyone know how i can fix this error please ?

My class Quest :

public class Quest : MonoBehaviour
{
    public QuestName questName;
    public QuestState questState;
    public QuestType questType;
    public QuestRewardType questRewardType;
    public int questRewardAmount;
    public string questDescription;
    public Vector3 questLocation;
    
    // Start is called before the first frame update
    void Start()
    {
        
    }

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

The class producing the error :

[System.Serializable]
public class QuestManager : NetworkBehaviour
{
    
    public static QuestManager Instance { get; private set; }
    
    private SyncList<Quest> activeQuests = new SyncList<Quest>();
    
    private void Awake()
    {
        if (Instance == null)
            Instance = this;
        else
            Destroy(gameObject);
    }
    
    public void CreateDiscoveryZone(Vector3 location, Quest quest)
    {
        Debug.Log("CreateDiscoveryZone");
        // Create zone...
    }
    
    public void ActivateQuest(Quest quest)
    {
        activeQuests.Add(quest);
    }
    
    public void CompleteQuest(Quest quest)
    {
        // quest.Complete();
        activeQuests.Remove(quest);
    }
}```

[rancid tinsel]

can you not access this in the inspector?

[teal viper]

Share the error details

[teal viper]

No

[rancid tinsel]

so ill have to reference like this?

[limber valley]

   at Unity.ILPP.Runner.PostProcessingPipeline.HandleDiagnosticMessages(String ilppName, List`1 messageList, LoggerAndProgressSink& combinedLogger)
   at Unity.ILPP.Runner.PostProcessingPipeline.PostProcessAssemblyAsync(PostProcessAssemblyRequest request, Action`2 progressSink)
   at Unity.ILPP.Runner.PostProcessingService.PostProcessAssembly(PostProcessAssemblyRequest request, IServerStreamWriter`1 responseStream, ServerCallContext context)
Unhandled Exception: System.InvalidOperationException: Post processing failed
   at Unity.ILPP.Trigger.TriggerApp.<ProcessArgumentsAsync>d__1.MoveNext() + 0xf74
--- End of stack trace from previous location ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
   at Unity.ILPP.Trigger.TriggerApp.<ProcessArgumentsAsync>d__1.MoveNext() + 0x1149
--- End of stack trace from previous location ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task) + 0xb6
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task) + 0x42
   at Unity.ILPP.Trigger.TriggerApp.<RunAsync>d__0.MoveNext() + 0xc7
--- End of stack trace from previous location ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task) + 0xb6
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task) + 0x42
   at Program.<<Main>$>d__0.MoveNext() + 0x1a3

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task) + 0xb6
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task) + 0x42
   at Program.<Main>(String[]) + 0x20
   at Unity.ILPP.Trigger!<BaseAddress>+0x47849b

[teal viper]

Why do you need the scene reference?

[rancid tinsel]

ig so i know which scene I want to change to

but youd just use buildindex anyway right?

[teal viper]

Are you using mirror?

[teal viper]

Yes

[limber valley]

yes !

[humble prism]

Do i need to call it in update?

[teal viper]

I assume the issue is using Quest in a sync list. Because it's a MonoBehaviour, Mirror can't serialize it.

[teal viper]

In update or a coroutine.

[radiant frigate]

srry for the stupid question but how can i make the script know wich one is the first gameobject of a list? context: i have a list of enemies that will spawn that round, my goal is to take the first gameobject( enemy) from the list make a var gameobject equal to it, spawn one, remove the gameoject from the list and keep doing that in a loop until there are no remaining.

[humble prism]

Ah okey I will try that

[teal viper]

Well, how would you access the first element in an array?

[radiant frigate]

theNameOfTheList[1]

i think its like that

[teal viper]

No

What's the index of the first element in the array?

[radiant frigate]

true

it was 0 right?

[teal viper]

Yes.

[radiant frigate]

it starts with 0

i forgot completely 💀

my memory is ass

so i just do what i wrote with a 0 instead of a 1?

[teal viper]

Yes.

[radiant frigate]

yayyy

ty!

[limber valley]

Yeah, i found the error, thanks anyway 😉

[rancid tinsel]

im running into a weird issue where this is only going through when false rather than when true like it should be

any ideas on what could be causing it?

[wintry quarry]

I 100% guarantee you are mistaken

Add another log inside the if statement

And add an else if you need to

And make sure Collapse is not enabled in your console window

[rancid tinsel]

https://gdl.space/epohaweyex.cs this is the settings script and this is the script from the screenshot https://gdl.space/tecaxezebe.cs (line 157)

[honest haven]

fullscreenEnabled != fullscreenEnabled just fyi a neater and better way to toggle

[wintry quarry]

ok, so explain why you think the if statement is working backwards?

[rancid tinsel]

i saw that when i was researching into how to do it but that syntax confuses me

[wintry quarry]

! negates a bool

[wintry quarry]

it turns true into false and false into true

[rancid tinsel]

so it returns false but the if statement goes through

[wintry quarry]

no..

the else is running

and printing that it's false

the if is not running

[rancid tinsel]

the else doesn't turn the tutorialMenu on

only the if

[wintry quarry]

ok but that's not being shown here

clearly the else is running

because it's printing false

You should really use better logs

to be more clear

[rancid tinsel]

i added (IF) to the if debug

and (ELSE) to the else debug

[wintry quarry]

            Debug.Log(SettingsScript.main.tutorialsEnabled);
            if (SettingsScript.main.tutorialsEnabled)
            {
                Debug.Log("Tutorials are enabled, activating the menu");
                tutorialMenu.SetActive(true);
            }
            else {
                Debug.Log("Tutorials are NOT enabled, NOT activating the menu");
            }```

[rancid tinsel]

so yeah the else is running

[wintry quarry]

yeah exactly

[rancid tinsel]

but i have no idea why the tutorial gets toggled on then

[wintry quarry]

some other code is doing it

not this code

[rancid tinsel]

ill look around if anything else is doing it yeah

[wintry quarry]

maybe something in LevelManager.Pause?

[rancid tinsel]

it might be because i left the tutorial menu on in the other scene 😭

let me test it now

ok now its just not setting it active

whats the ctrl F shortcut but for the whole solution?

[cosmic grove]

guys am i stupid?

that variable is an array of string

[teal viper]

that is not a valid syntax

[cosmic grove]

oh

how do you make something empty

[teal viper]

Depends on the "something"

[cosmic grove]

its a string array

probably has something in it at times

do i have to loop everything an remove them 😭

[wintry quarry]

new string[0];

[teal viper]

Then you create it as a new string array

[cosmic grove]

oh

what

[teal viper]

If you want to remove things, you'll need to use a list.

[cosmic grove]

i want my array to be empty

[wintry quarry]

Yes Lists are resizable

arrays are not

[wintry quarry]

an empty array is a 0 length array, and can't hold anything

you really want a List

[cosmic grove]

ah ok makes sense

how do i every element not have a value

[wintry quarry]

to clear a list is myList.Clear();

[cosmic grove]

or ill just go learn lists again

[wintry quarry]

for an array, you loop through and assign them all to null

but that doesn't make it empty

it makes it full of nulls

[cosmic grove]

ah makes sense

thanks

but i can assign a different array to the variable

[wintry quarry]

of course

that's what = is for

it's wasteful generally to do that though since you'll be discarding the old array

which means it needs to be garbage collected

Using a List you can reuse the same memory and still resize it

[cosmic grove]

alright ill do that

thanks

[honest haven]

i have not used arrays at all. is there any time that one might be used?

i just seem to default to list

[wintry quarry]

when you know the number of things isn't going to change

[honest haven]

cool

[wintry quarry]

for example, to represent squares on a chessboard

there are always 64

[honest haven]

i understand

thanks

[rocky lava]

What component do i use with Navai for it to mark the map as walkable

[prime lodge]

why this doesnt work?

[wintry quarry]

because it doesn't make any sense at all?

Find needs the name of the object you're looking for, as a string

[prime lodge]

sorry i forgot the whole line 💀

[wintry quarry]

GetComponent<RocketMotor>() is going to return the RocketMotor component that is attached to the GameObject this script is attached to

[teal viper]

Do you mean navmesh? Or what's Navai?

[rocky lava]

navmesh i mean yeah

my bad

i only got these two

[teal viper]

What unity version are you using?

[rocky lava]

2021.3.22f1

i think

[silk night]

the version is in the window title

[teal viper]

Then you'll need to use the navigation tab to define the areas
https://docs.unity3d.com/2021.3/Documentation/Manual/nav-AreasAndCosts.html

[quick kelp]

ok i tried biding my player in a new scene today and i keep getting this and i have no clue of why its happening even tho it works perfectly fine in the test scene

Player movement: inventory open function

 {
   canMove = true;
 }

private void OnEnable()
{
 EventBus.Instance.onOpenInventory += () => canMove = true;
 EventBus.Instance.onCloseInventory += () => canMove = false;
}

private void OnDisable()
{
 EventBus.Instance.onOpenInventory -= () => canMove = true;
 EventBus.Instance.onCloseInventory -= () => canMove = false;
}```

EventBus

private void Start()
{
canMove = true;
}

private void OnEnable()
{
EventBus.Instance.onOpenInventory += () => canMove = true;
EventBus.Instance.onCloseInventory += () => canMove = false;
}

private void OnDisable()
{
EventBus.Instance.onOpenInventory -= () => canMove = true;
EventBus.Instance.onCloseInventory -= () => canMove = false;
}```

[teal viper]

Share the line that throws the error

[silk night]

EventBus.Instance.onOpenInventory += () => canMove = true; should be the error line

[wintry quarry]

EventBus.Instance is null

also you pasted the same code for both files

[teal viper]

The intention was for them to figure that out...

[silk night]

oops

sorry 😄

[wintry quarry]

You can see that the only thing that could possibly be null on that line is EventBus.Instance yes @quick kelp ?

[quick kelp]

line 33 is the error
EventBus.Instance.onOpenInventory += () => canMove = true;

[teal viper]

That's fine. I just like using situations like that to teach them to read errors.

[quick kelp]

i read the error i just dont get how the error is now poping up as soon as i copy and past things from the test scene into the new scene

[wintry quarry]

You're focused too much on that circumstance of copy and pasting

think about the error and the code

you're trying to access Instance before it's assigned

[long matrix]

Hello guys i have a question what is better to achive ground check on 2D OnCollisionEnter2D or OverlapCircle()?

[wintry quarry]

overlap

[cosmic dagger]

I concur . . .

[long matrix]

Why overlap?

[wintry quarry]

collisions can happen anywhere

if you bump your head, that doesn't mean you're grounded

[long matrix]

Another problem my player's rigidbody interpolation is interpolate and im on a moving platform and i try to move with rb.velocity it doesnt move if im at interpolate so i add the platform speed to player it fix but do a lot of calculations is there another way to fix it?

[wintry quarry]

interpolation doesn't affect the actual motion of the body at all

[long matrix]

No for example im on moving platform that is the player's parent while he collide with it if player's interpolation is none or extrapolat and player move its fine but he looks wired beacues its extrapolat and not interpolate

if he is interpolate he cant move

or move very slow and wird

[wintry quarry]

It's not interpolation that is the problem it's your movement code

setting the velocity directly is going to mean the platform can't impart any velocity to the player

interpolation doesn't affect the movement

it only affects the visuals of the movement

[long matrix]

But isnt rigidbody.velocity the propare way to move?

[wintry quarry]

there is no "proper" way to move

[long matrix]

like this rb.velocity = new Vector2(moveSpeed * moveX, rb.velocity.y);

[wintry quarry]

there are different ways with different drawbacks and advantages

The most physically realistic way is to only use AddForce

[long matrix]

And it will fix the moveplatform problem?

[wintry quarry]

it will allow your platform's friction to affect the player

"fix the problem" is a massive oversimplification of what it will do

[long matrix]

i changed the moving platfrom movement from rb.moveposition to vector3.movetowards cuz rb.moveposition was laggy

[wintry quarry]

Sounds like you were usng MovePosition inside Update instead of FixedUpdate

[long matrix]

no

[wintry quarry]

you don't seem to have a grasp on what the code is doing

MoveTowards doesn't move an object

it's just a math function

[long matrix]

Ye but i move it toward waypoint

[buoyant knot]

you want to figure out what sort of player you want first tbh.
Do you want precise snappy movement like Mario, or flowey ragdoll-like movement.

[long matrix]

Like hollowknight smooth movement

[wintry quarry]

it would need to be combined with some other thing like rb.MovePosition or rb.position = to actually move the thing

you can use MovePosition WITH MoveTowards

as long as it's in FixedUpdate and interpolation is enabled it will be smooth and correct

[buoyant knot]

Hollow knight would probably be done by dynamic rigidbody, where forces add, like Praetor says

[long matrix]

ye bgut i fixed it with vector3.movetward the waypoint

Loup addforce? why not velocity

[wintry quarry]

because they wanted realism

Just FYI, by the way, the only thing AddForce does is change the velocity

ultimately the only thing any of these things are doing is changing the velocity

[buoyant knot]

setting velocity effectively deletes all history of an object’s momentum

[long matrix]

So velocity is like mario movement right

[wintry quarry]

it's just a matter of whether the change to velocity is taking current velocity into account or not

[wintry quarry]

mario famously has realistic momentum to his movement

[buoyant knot]

adding force additively adds the contributions of multiple different things that can modify your velocity, and continuously adds it to your current velocity. It keeps momentum easier

[cosmic grove]

guys is there a way to clone thats not looping throught the entire list and creating a new list?

[long matrix]

so addforce on horizontal and jump?

[wintry quarry]

define "clone"?

if you need a second list, you have to create a new list one way or another

[cosmic grove]

new variable thats not a reference

[wintry quarry]

all your variables to lists will be references.

But you want to create a new object and reference the new one

[buoyant knot]

mario turns on a dime, praetor. There is a little bit of simulated drag added for more fluid motion, but Mario would 100% be setting velocity constantly.

[wintry quarry]

new List<Whatever>(oldList) will create a new list with all the same contents as the other list.

[wintry quarry]

I disagree

mario has momentum

[long matrix]

Guys what instead of addforce and velocity i can add to the horizontal movement? that hollow knight or other games did?

[cosmic grove]

hmmm. i tried that but didnt work. but i mighve done smething wrong. thanks

[long matrix]

i mean in addition

[wintry quarry]

also note that "Mario" is describing like 25+ games over the decades

[cosmic grove]

addforce is good tho.

[buoyant knot]

the world of mario as a whole sucks at transfer of momentum, which is core to a dynamic rb simulation. Objects in mario can only receive/transfer momentum with a single surface at a time.

[wintry quarry]

https://www.youtube.com/watch?v=3Svvq7P6bzs

[buoyant knot]

i’m focusing on the base mario titles. Except sunshine, which definitely used something more like add force

[wintry quarry]

mario basically invented the idea of momentum in platformers

[buoyant knot]

Sunshine mario plays very different to every other 3D mario

[ivory bobcat]

Show what you've tried

[cosmic grove]

i forgot the new keyword

typical me

[buoyant knot]

mario is very different from madeline in celeste, who activelt recieves momentum and forces from everthing she touches, and multiple things at once.

[ivory bobcat]

The list constructor definitely should take a list and create a new list with the same contents

[cosmic grove]

i need a better ide for real

[wintry quarry]

Use Rider

[cosmic grove]

i dont think they have a community version

[timber tide]

man mario 64 was so ahead for its time

[long matrix]

K and on the jump should i use addforce or velocity? and what to add pressure jump? double jump? maybe wait a bit before jump and fall?

[buoyant knot]

Mario has a concept of momentum, but it is not based on physics. It is one based on reference framing, relative to the velocity of the one surface you ride. eg floor/wall

[buoyant knot]

I always set velocity for jump so that jump can be a consistent height regardless of your current velocity.

[wintry quarry]

It's based on physics - it's just a different physics simulation than we're used to in Unity

all of these are physics simiulations of one kind or another

[buoyant knot]

If your jump is based on addForce, then when you are on a falling platform, and jump, then you can jump while still having downward velocity

setting world velocity gives a constant jump height in the ref frame of the world

[long matrix]

rb.AddForce(new Vector2(moveSpeed * moveX - rb.velocity.x, 0), ForceMode2D.Impulse); is it good addforce movement for horizontal? moveX is getaxisraw

[buoyant knot]

that should be force mode

horizontal movement should usually be additive

regardless of what sort of character controller you have

[long matrix]

When i do force mode to be good speed the movespeed should be like 400

[wintry quarry]

depends - where are you adding the force?

[buoyant knot]

AddForce ForceMode sets vel += deltaTime * force / mass; at end of frame.

(at least in 2D)

[long matrix]

I mean what is smoother for x movement?

And what impulse and force mode different?

[buoyant knot]

any impulse mode force can be expressed as a force mode force by math

[long matrix]

So impulse is like rb.velocity?

[buoyant knot]

but you usually use impulse mode when you want to apply force once. Like a sudden yeet/collision

force mode is intended more for a force that acts over multiple frames

i forget the exact equation right now, but that is the general idea

[long matrix]

But when im using force mode my move speed has to be like x100 higher idk if its right

[wintry quarry]

No.
velocity = SETS the velocity
AddForce ADDS to the velocity

you can think of AddForce as velocity +=

[long matrix]

So addforce is like with acceloration right?

[buoyant knot]

and in 2D, impulse mode IMMEDIATELY sets velocity, on that line

[wintry quarry]

the only thing the forcemode does is change HOW MUCH the velocity is changed

[long matrix]

Like realistc movement with acceloration?

[rocky lava]

Im trynna make a very simple gun in unity, but the sphere goes straight down whenever i shoot

[buoyant knot]

AddForce force mode should have an input of force in units of Newtons (kg m/s^2)

[wintry quarry]

Here's the real deal
AddForce(x, ForceMode2D.Force) is the same as rb.velocity += x / rb.mass * Time.fixedDeltaTime;
AddForce(x, ForceMode2D.Impulse) is the same as rb.velocity += x / rb.mass

[buoyant knot]

let me just double check the math rq

[long matrix]

and velocity doesnt take care about rb.mass?

[buoyant knot]

velocity is just m/s

[long matrix]

K so if i want acceloration so i need Addforce

but how can i controll the accerolation

[gilded temple]

hey guys, unrelated to current disscusion, fairly new to unity, quick question, what would be the best way to not display a node without setting it inactive ? for context i have an empty node with just a script that serves as a parent for my menu, problem is if i set it to inactive the script stops listening (if im correct), is there a trick like adding a node that can be set to not display somewhere ? Tried looking it up didnt find anything satisfying

[wintry quarry]

velocity is literally velocity. It's just how fast the object is moving and in what direction

[wintry quarry]

Disable the renderer, or whatever the visible component is

[long matrix]

Ye like the velocity always stay the same

And Addforce adding Acceleration?

[wintry quarry]

velocity is whatever the hell you set it to

[gilded temple]

so disable the childs renderer* rather tha nthe parent directly ?

[wintry quarry]

if you set it to a differnt thing each frame, it will certainly not stay the same

[long matrix]

So almost every good game use addforce?

[wintry quarry]

or the whole child object. Whatever makes sense for you

[gilded temple]

tyu

[wintry quarry]

every good game uses the thing that makes sense for that game

every game is different

[wintry quarry]

Also as I explained here AddForce can be recreated using the velocity property anyway

[long matrix]

Like i use velocity and i fill like my movement a bit wird and slow aswell the jump

[buoyant knot]

double checked, this is right

[long matrix]

feel

I tried adding force to player rb.AddForce(new Vector2(moveSpeed * moveX - rb.velocity.x, 0), ForceMode2D.Impulse); but it feels like abit slow and with delay

idk if i did the addforce right

[buoyant knot]

you probably did not adjust any of the numbers

[long matrix]

Maybe the problem is the movement speed value or gravity how can i find a good values?

[buoyant knot]

guess check

except gravity

[long matrix]

Is there like a way to check the gravity compare to the speed value?

[buoyant knot]

jump velocity i calculate through kinematic equations, where I input a desired Jump height (meters) and time to reach the top of the jump (sec), and input gravity (m/s^2), and i calculate the initial jump velocity that satisfies it

[long matrix]

K and genral question the way im using addforce here is fine? rb.AddForce(new Vector2(moveSpeed * moveX, 0), ForceMode2D.Force);

[buoyant knot]

this will add a force to your character proportional to your move speed and how much you tilt the controller, and increase without bound

which will let you go to arbitrarily high speed

[long matrix]

So how to fix that

I want stable speed

[rocky lava]

nvm found it, character rotation was wrong

[buoyant knot]

//Calculate gravity strength using the formula (gravity = 2 * jumpHeight / timeToJumpApex^2). 
gravityStrength = -(2 * jumpHeight) / (jumpTimeToApex * jumpTimeToApex); // = acceleration in units/s^2

//Calculate the rigidbody's gravity scale (ie: gravity strength relative to unity's gravity value, see project settings/Physics2D)
gravityScale = gravityStrength / Physics2D.gravity.y;

// Calculate forces. mpulse force is more like velocity. Use my own kinematic eqn. Based on vf^2 = vi^2 + 2a*dist
jumpForce = Mathf.Sqrt(Mathf.Abs(gravityStrength * 2 * jumpHeight));

this is how I calculate my jump force

[long matrix]

But about the horizontal movement

I want smooth stable speed

maybe when i stop very little bit move slow like hollow knight

[buoyant knot]

public void AddForceAlongGround(float targetGroundSpeed, float accelRate, bool shouldBeOnGround) {
    Vector2 slopeNormalToUse = contacts.currentBase.slopeNormal;
    // This will make it possible but very slow to climb steep slopes.
    if (Vector2.Angle(Vector2.up, contacts.currentBase.slopeNormal) > KinematicPhysics2D.MAX_SLOPE_ANGLE // Slope too steep
            && (contacts.currentBase.slopeNormal.x * targetGroundSpeed < 0)) { // Moving into the slope (negative number);
        targetGroundSpeed = 0f; // Bring to full stop
    }

    // Scale by slope normal.
    Vector2 alongSlopeVec = Vector2.Perpendicular(slopeNormalToUse); // points in negative x
    Vector2 targetSpeedVec = new Vector2(targetGroundSpeed, alongSlopeVec.y * targetGroundSpeed / alongSlopeVec.x);

    //Calculate force along x-axis to apply = speed difference * acceleration rate. Units are pretty fucked here.
    Vector2 newForce = (targetSpeedVec - rigidBody.velocity) * accelRate;

    // No Y component if not grounded OR if jumping etc
    if (!shouldBeOnGround) { newForce.y *= 0; }
    //Convert this to a vector and apply to rigidbody
    AddForce(newForce, ForceMode2D.Force);
}

This is the code I use for running

I have more bools and things here to deal with slopes

[long matrix]

hm its for 3d game?

[buoyant knot]

slopes will make your life much more difficult

2D

[long matrix]

I dont have slopes

There isnt a simple way to make like this rb.velocity = new Vector2(moveSpeed * moveX, rb.velocity.y); look a bit better?

[wintry quarry]

add some interpolation?

[buoyant knot]

then just skip the part about my slopes, and do the math for slopenormal = Vector2.Up

[long matrix]

rb.velocity = new Vector2(moveSpeed * moveX, rb.velocity.y); you mean i can add accelrate to it?

[wintry quarry]

Vector2 targetVelocity = new Vector2(moveSpeed * moveX, rb.velocity.y);
rb.velocity = Vector2.MoveTowards(rb.velocity, targetVelocity, 4 * Time.deltaTime);```
Some simple interpolation for example

[long matrix]

You combine physics with not physics and physics with time.deltetime and not time.fixeddeltatime is it k?

[wintry quarry]

I am not doing anything here that is non physics

[long matrix]

rb.velocity

[wintry quarry]

I am moving entirely with rb.velocity

[long matrix]

its physics

[wintry quarry]

In FixedUpdate Time.deltaTime == Time.fixedDeltaTime

[long matrix]

oh rlly?

but movetowards

isnt non physics with velocity

[wintry quarry]

MoveTowards, as I said before, is a math function

[long matrix]

oh

[wintry quarry]

it has nothing to do with moving any physical objects

i'm using it to "move" the velocity

[buoyant knot]

the relevant part of my code that does not include slopes is:

AddForce(newForce, ForceMode2D.Force);```

[long matrix]

K and the 4 is instead of movespeed? and is it fine to do it in 1 line?

[wintry quarry]

4 is the acceleration rate

that means change velocity by up to 4 m/s^2

[nova gorge]

hello, could somebody help me with unity collision 2D?

[buoyant knot]

accel rate is kg/s, which is 1 over how many seconds I want it to take to reach max velocity, and make it independent of mass

[long matrix]

b.velocity = Vector2.MoveTowards(rb.velocity, new Vector2(moveSpeed * moveX, rb.velocity.y), 4 * Time.deltaTime); is it fine i do it in 1 line?

[buoyant knot]

why do you care so much about doing it in one line? You should be focussed on doing it right

[long matrix]

cuz it call a new vector extra calculations

xd

[buoyant knot]

have you ever heard the saying that the compiler is smarter than you?

well, the compiler is smarter than you

write your code well in a legible way. And even if the compiler were not smarter than you, a new vector is one of the most insignificant costs, and terrible reasons to make your physics code harder to read

you will need to do a LOT of modifications to physics code to add features and special cases in the future. you cannot afford for it to be challenging to read just to save a line.

[long matrix]

k but Vector2 newForce = (targetSpeedVec - rigidBody.velocity) * accelRate; i dont have targetSpeedVec and accel rate the targetspeed is the movespeed

[buoyant knot]

when the compiler would figure it out anyway

[swift crag]

code is written once and read many times

make it readable.

[buoyant knot]

then I guess you need to go calculate those variables.

[long matrix]

I dont know what values to give them

[buoyant knot]

accelRate is a value in kg/s. It is 1/(how many seconds it takes to go from 0 to targetSpeed). The kg scaling is because it applies this amount regardless of your mass.

if you want mass to matter, then it needs to be split off

[long matrix]

Is it fine if i dont incluade mass?

[buoyant knot]

that's up to you.

[long matrix]

So if i dont want by mass so i dont need accelRate var?

[buoyant knot]

imagine metal mario vs regular mario. When you move the control stick, const force means metal mario is slower.

[long matrix]

ye

[buoyant knot]

the way I coded accel rate means metal mario and regular mario move at equal rates

because my accel rate is kg/s, and not 1/s

[long matrix]

But i mean i just want to move the player smooth on x axis and you told me addforce is better so there isnt simple way to do it?

[buoyant knot]

we are explaining to you how to do it

this is not a single line of code process

[long matrix]

But first i need to know how to do the 1 line right

[buoyant knot]

no

[buoyant knot]

idk who taught you this, or where you got this from, but you need to delete that mentality from your memory

do the process in steps, with however many lines of code each step requires

[long matrix]

I mean i watched a lot of tutorails and all i saw use to use rb.velocity = new Vector2(moveSpeed * moveX, rb.velocity.y);

[buoyant knot]

and how is that working for you?

[long matrix]

Its not like in popular games

[buoyant knot]

exactly

because popular games with good controls don't do that shit

[long matrix]

So what they add? are they adding acceleration?

[buoyant knot]

1. calculate your desired velocity
2. calculate how fast you want to go to that velocity
3. apply the change to get to that new velocity

[long matrix]

Every popular game change the velocity by time?

[buoyant knot]

you need to do what is right for your game

the code will only do what you tell it to do

[long matrix]

Idk what is right its platformer and i want to make the controll feel good as possible

[buoyant knot]

any process that does not include these 3 steps will likely not work for you

[long matrix]

But movement with same velocity cant look good?

[buoyant knot]

usually not, which is why we don't do that

[long matrix]

So its like going from 0 to 4 movespeed with accelration and when stop from 4 to 0 with deaceleration?

thats what addforce do?

[buoyant knot]

    if (forceMode == ForceMode2D.Force) totalForce += force;
    else rigidBody.velocity += force / rigidBody.mass;
}```

this is what AddForce looks like

and force mode at the end of the frame does: rigidBody.Velocity += totalForces * deltaTime / mass

[long matrix]

But addforce wont just addforce infinitly i need to clamp it?

[buoyant knot]

that is why we calculate the force based on the difference between the target vel and current vel.

[long matrix]

The target vel is the max vel?

[buoyant knot]

because we can do whatever we want to calcuate the target vel

[long matrix]

K so i can do like cureent force max force and than do addforce till the current force reach max forch and than do rb.velocity?

[buoyant knot]

target velocity is not the max. it is whatever we want our velocity to be, given infinite time at the current game state

AddForce in force mode should be done in FixedUpdate

[long matrix]

    public float maxSpeed = 5f; // Maximum speed
    public float acceleration = 30f; // Acceleration
    public float deceleration = 30f; // Decelerationfloat moveInput = Input.GetAxisRaw("Horizontal");
        
        // Calculate target velocity and apply horizontal force
        rb.AddForce(Vector2.right * moveInput * moveSpeed * acceleration, ForceMode2D.Force);

        // Limit velocity and decelerate if no input
        rb.velocity = new Vector2(
            Mathf.Clamp(rb.velocity.x, -maxSpeed, maxSpeed),
            rb.velocity.y
        );
        
        if (moveInput == 0f)
        {
            rb.velocity = new Vector2(
                Mathf.MoveTowards(rb.velocity.x, 0f, deceleration * Time.fixedDeltaTime),
                rb.velocity.y
            );
        }``` this is a code i found is it a fine way to do accelration and decelration and use addforce like that?

[buoyant knot]

that won't work

[long matrix]

Why

[buoyant knot]

AddForce modifies velocity at end of frame

right before physics sim

do what I told you

[long matrix]

    {
        float moveInput = Input.GetAxisRaw("Horizontal");
        
        // Calculate target velocity and apply horizontal force
        rb.AddForce(Vector2.right * moveInput * moveSpeed * acceleration, ForceMode2D.Force);

        // Limit velocity and decelerate if no input
        rb.velocity = new Vector2(
            Mathf.Clamp(rb.velocity.x, -maxSpeed, maxSpeed),
            rb.velocity.y
        );
        
        if (moveInput == 0f)
        {
            rb.velocity = new Vector2(
                Mathf.MoveTowards(rb.velocity.x, 0f, deceleration * Time.fixedDeltaTime),
                rb.velocity.y
            );
        }
    }```

[buoyant knot]

this. and on separate lines

[long matrix]

Like how to know the desired velocity?

[buoyant knot]

you calculate it based on whatever you want it to be

this is the velocity you want to be at if the player's input is constant, and you gave the game infinite time

[long matrix]

like its 0 and go to 5 in 0.5 seconds? so the desired velocity is 1 in 0.1 second?

[buoyant knot]

It would be like targetVelocity = 5 m/s. And accelRate = 0.5 kg/s. So from a current velocity of 0 m/s, we would be at 2.5 m/s after 1 sec, and at 5 m/s at 2 seconds, and 5 m/s at 3 seconds.

that is what the code I wrote does

[long matrix]

// Calculate target velocity and apply horizontal force
rb.AddForce(Vector2.right * moveX * moveSpeed * acceleration, ForceMode2D.Force);

        // Limit velocity and decelerate if no input
        rb.velocity = new Vector2(
            Mathf.Clamp(rb.velocity.x, -maxSpeed, maxSpeed),
            rb.velocity.y
        );

        if (moveX == 0f)
        {
            rb.velocity = new Vector2(
                Mathf.MoveTowards(rb.velocity.x, 0f, deceleration * Time.fixedDeltaTime),
                rb.velocity.y
            );
        } WHEN IM USING IT and dowing accle and deaccle like 75 the player moves fast and kinda smooth but i dont see accelration or deaccerlation like when i stop move it should still move a bit?

[buoyant knot]

add force should always come last.

you only add force AFTER you know how much force to add. Do not add force, and try to correct it later

[long matrix]

                Mathf.Clamp(rb.velocity.x, -maxSpeed, maxSpeed),
                rb.velocity.y
            );``` and this part needed?

[buoyant knot]

i gtg now, but good luck

[long matrix]

K ty for help

[royal elm]

how does quaternion.euler work

[slender nymph]

did you check the docs?

[royal elm]

m doing it rn n it's a lil confusing

[summer stump]

https://mathworld.wolfram.com/EulerAngles.html

[royal elm]

like why doesn't it exceed 180 degrees

[slender nymph]

where are you seeing that Quaternion.Euler does not exceed 180 degrees?

also signed angles go from -180 to 180. unsigned angles go from 0 to 360

[royal elm]

A single quaternion cannot represent a rotation exceeding 180 degrees in any direction.

[slender nymph]

again, where are you seeing this

[royal elm]

thanks

[royal elm]

the docs

[slender nymph]

fucking where

[royal elm]

https://docs.unity.cn/ru/2019.4/Manual/QuaternionAndEulerRotationsInUnity.html#:~:text=a unique axis.-,Quaternions,need to access them directly.

[slender nymph]

i think you are misunderstanding what that is actually saying. a quaternion can represent any rotation, they do not represent single angles. and they aren't even expressed in degrees anyway

[royal elm]

what does that limitation mean

[slender nymph]

considering you won't need to construct quaternions manually and can just use euler angles it doesn't matter. just use euler angles and convert that to a quaternion using Quaternion.Euler

[swift crag]

If you animate between two Quaternions, the object won't move by more than 180 degrees

I believe that's the point.

A Quaternion won't capture a 3600 degree rotation

If you lerp between two sets of Euler angles, you can go through many full rotations

[long matrix]

            rb.AddForce(Vector2.right * moveX * moveSpeed * acceleration, ForceMode2D.Force);

            // Limit velocity and decelerate if no input
            rb.velocity = new Vector2(
                Mathf.Clamp(rb.velocity.x, -maxSpeed, maxSpeed),
                rb.velocity.y
            );

            if (moveX == 0f)
            {
                rb.velocity = new Vector2(
                    Mathf.MoveTowards(rb.velocity.x, 0f, deceleration * Time.fixedDeltaTime),
                    rb.velocity.y
                );
            }``` this code is fine for 2d horizontal movement?

[royal elm]

thanks Fen & boxfriend I think m getting it now

[thorn holly]

Looks fine to me

[worthy merlin]

How do I get a randomization in C# Unity. was expecting there to be something built in but I can't find a random range function

[polar acorn]

https://docs.unity3d.com/ScriptReference/Random.Range.html

[slender nymph]

can't find a random range function
it's like they didn't even bother googling that bit right there

[visual hedge]

public struct Blah
{
public string id;
public string name;
}

Blah blah = new();
blah = blahBlahBlahBlah;
blah.id = "blaaaaah";
blah.name = "uuuuuhhhhh";

will now blahBlahBlahBlah.id be equal to blah.id?

1 sec

I mean do I modify the source?

[thorn holly]

No

[slender nymph]

no. structs are passed by copy so blah = blahBlahBlahBlah; is just assigning a copy of it to your blah variable

[visual hedge]

I got into some strange problem where my SO skill is getting modified by the script and it's no bueno and I am trying to debug it and find out what causes it with no success... 😦

[slender nymph]

you'll want to learn about the difference between Value Types (like structs) and Reference Types (like classes)

[uncut light]

anyone can help me how to install bolt in unity

[wintry quarry]

wouldn't it just be done from the package manager like any other asset?

[slender nymph]

it's just called Visual Scripting now. and there's a whole server for it #763499475641172029

[visual hedge]

something I do with structs also modifies the source... dammit, broke my head already

[wintry quarry]

Oh also I was thinking of Photon Bolt 😆

[wintry quarry]

you'd have to show your code and explain what issue you're running into

[uncut light]

facing error

[slender nymph]

oh that's also a possibility i guess lol. i just assumed they mean the old bolt that got turned into visual scripting 🤷‍♂️

[wintry quarry]

wdym? Show screenshot/error message?

[visual hedge]

it will be a bit too much... I will spend some time modifying the code that made it all to go sideways and we will see... if no success, will come back here.

thank you

[thorn holly]

For April fools, they should make Vector3 a class instead of a struct

[wintry quarry]

that might literally kill someone

[visual hedge]

ow wait... one question more

[thorn holly]

“It’s just a prank bro”

[uncut light]

see

[wintry quarry]

how did you install it

That looks like this asset https://assetstore.unity.com/packages/tools/visual-scripting/bolt-enhanced-186373

which is not the normal Bolt package

[uncut light]

package manager then my assets then bolt enhance

[wintry quarry]

Are you trying to install that

[visual hedge]

[System.Serializable]
public struct ActionSettings
{
    public float TrueDamage;
    public SkillType skillType;
    public List<UnitStateMachine> endTargetList;
    public int strikeCount;
    public bool canCrit;
    public bool isDodgeable;
    public bool ignoreDefense;
    public AffectedStat targetStat;
    public bool isHeal;
    public List<StatusEffectList> applyStatusEffects;
}

Basically my applyStatusEffects is getting polluted. I guess...
I guess I found the issue... here^

[System.Serializable]
public struct ActionSettings
{
    public float TrueDamage;
    public SkillType skillType;
    public List<UnitStateMachine> endTargetList = new ();
    public int strikeCount;
    public bool canCrit;
    public bool isDodgeable;
    public bool ignoreDefense;
    public AffectedStat targetStat;
    public bool isHeal;
    public List<StatusEffectList> applyStatusEffects = new ();
}

will that solve the issue? We will see in a minute

[wintry quarry]

or the real Bolt package

[wintry quarry]

what is StatusEffectList?

[visual hedge]

class

[wintry quarry]

Unlikely the thing you did will fix anything

[uncut light]

no i am trying to installl bolt to make games in unity using visual scripting

[slender nymph]

List is a reference type. so when you copy the struct it copies the reference to the List so each copy of that struct uses the same list

[wintry quarry]

you installed some random asset store package

remove that

Go to Package Manager -> Unity Registry -> Visual Scripting

install that

(unless it's in your project already)

Visual Scripting is installed by default in new projects

[hexed fractal]

Vector3 movementForce = ((Input.GetAxisRaw("Vertical") * transform.forward) + (Input.GetAxisRaw("Horizontal") * transform.right)).normalized * movementSpeed;
Debug.Log(movementForce);
movementForce = cameraTransform.TransformDirection(movementForce);
Debug.Log(movementForce);
rigidBody.AddForce(movementForce, ForceMode.Force);

Question. I dont understand how using the TransformDirection method magically makes you able to walk in the directions of the camera..

i just cant understand it

[slender nymph]

the TransformDirection method transforms the Vector3 you pass to it to be relative to the object's rotation

[wintry quarry]

Imagine you ARE the camera. When you think of "right" and "forward" which ways do you look?

[hexed fractal]

why doesnt the description of it say that..

[wintry quarry]

That's what TransformDirection does

[hexed fractal]

yeah but the GetAxisRaw stuff

id assume it works differently

[wintry quarry]

what about it?

wdym

[hexed fractal]

since its still Vertical and Horizontal

idk

[wintry quarry]

those are just numbers

that you're plugging into a vector

and treating as local space vector

you then transform that vector into world space with TransformDirection

[slender nymph]

it does, just using different words. Transforms direction from local space to world space.

[wintry quarry]

and now it's what you want

Although I will say

this code is BUSTED

Vector3 movementForce = ((Input.GetAxisRaw("Vertical") * transform.forward) + (Input.GetAxisRaw("Horizontal") * transform.right)).normalized * movementSpeed;
Debug.Log(movementForce);
movementForce = cameraTransform.TransformDirection(movementForce);```

transform.forward is a WORLD SPACE vector

you are passing it into TransformDirection which expects a LOCAL SPACE vector

so this won't work properly

[hexed fractal]

it kinda does

[wintry quarry]

kinda but not really

[hexed fractal]

i mean

[wintry quarry]

instead of transform.forward you should be using Vector3.forward

[hexed fractal]

i dont know what its supposed to be

[wintry quarry]

and Vector3.right instead of transform.right

[slender nymph]

yeah the transformdirection call isn't necessary. also those multiplications can be removed and use AddRelativeForce instead with the local space direction

[wintry quarry]

well

it's necessary in the sense that transform and cameraTransform aren't the same object