💻┃code-beginner

[verbal dome]

Yeah

[rare basin]

i'll definitely watch some guides about that pattern

ty

[verbal dome]

This guy has a lot of resources about making AI btw
https://www.youtube.com/@IainTheIndie

I worked on Medieval II: Total War, The Bureau and Bioshock: Infinite.

[swift crag]

in my game, everyone is an Entity

Entities experience perceptions that can be attributed to other Entities

Entities make decisions based on these perceptions and their memories (e.g. they can be friendly or unfriendly to one another based on prior events)

[rare basin]

do you recommend git-ammend on youtube?

[swift crag]

So there's no special "Player" class at all

[rare basin]

https://www.youtube.com/watch?v=HNGJ8KOqdYQ

[swift crag]

One thing I don't really get about the whole "blackboard" idea is how it's not just a Dictionary<string, object>

[rich adder]

git-ammend is good youtuber

[swift crag]

Keeping your keys and values in order sounds very annoying

[verbal dome]

I have separate dicts for int, float, vector3 etc

Then methods Get/SetInt/Float/Vector3

And a dictionary for object for when it is absolutely needed

Idk how I'm going to serialize that yet tho..

[swift crag]

what are some things you store in these dictionaries?

[verbal dome]

Not really familiar with that youtuber but seems decent
Not many youtubers touch intermediate subjects like this

[verbal dome]

I can't actually remember if I'm even using it yet

I think I just futureproofed

But it could be any data that doesnt fit into the other types

[swift crag]

I may have just constructed a "blackboard" in a slightly roundabout way, with things like:

• Perceptions (I experienced a strong visual stimulus that I associated with Bob)
• Relationships (I am afraid of Bob)
• Motives (I am fearful right now)
• Traits (I really hate being fearful)

[naive pawn]

what did Bob do 😭

[swift crag]

well that's down to the Inclinations!

those provide default relationship values based on qualities of the other entity

I'm running out of nouns, help

[verbal dome]

I don't actually store everything in the blackboard, I do have data types like TargetInfo which stores the detection state, aggression, observed actions etc. per each NPC's target

[swift crag]

I've just struggled to imagine how I'd enjoy using a "blackboard", since it's this giant bag of completely random values with no structure

[verbal dome]

Yeah exactly

Thats why I didnt shove everything in it

[swift crag]

It makes sense for the entity to have a pool of knowledge

[verbal dome]

I mostly use the blackboard for evaluating Utility AI

[swift crag]

hence all of this crap information

[rare basin]

okay so i've break my code into more modular pieces, i've created ITarget IDamageable etc. So for example if i have Player: Character, ITarget, IDamageable, and then if i store ITarget currentTarget in my Enemy, can i do if currentTarget.GetComponent<IDamageable> (...)?

would that work?

[rich adder]

you cannot GetComponent on an interface

its not a Component

[rare basin]

[verbal dome]

You can!

[rich adder]

oh rly?

[verbal dome]

Sure

[swift crag]

(well, if you cast it)

[rich adder]

nice. I usually just make a Prop for it

GameObject Object => gameObject

[swift crag]

Ooh, I just realized that you could add members to the interface that match what MonoBehaviour already has

[rare basin]

using UnityEngine;

public interface ITarget 
{
    GameObject gameObject { get ; } 
}

[swift crag]

IComponentLike

[rare basin]

can I just do it like that?

[verbal dome]

Cast to what?

[swift crag]

for things that are shaped like a Component

[slender nymph]

yep, exactly what i was about to suggest. can just throw the getcomponent declaration on the interface

[rare basin]

and then if (gameObject.GetComponent<IDamageable>)

[swift crag]

presumablpy a Component

[verbal dome]

Why'd you need to, though

Just use the interface

[swift crag]

after adding the relevant members to the interface, yeah

my first thought did not involve changing the interface

(bad)

[slender nymph]

because you can't call GetComponent on the interface without it either being declared as part of the interface or being cast to an object that has the method on it. you can call GetComponent to get an interface which might be what you were thinking of

[verbal dome]

Ohh, on the interface yeah i misread

[rich adder]

yeah I think there was confusion, you can GetCompeont <interface> you cannot interface.GetComponent

[verbal dome]

Nevermind me 🤦‍♂️

[rare basin]

using UnityEngine;

public interface ITarget 
{
    GameObject gameObject { get ; } 
}

if (gameObject.GetComponent<IDamageable>)

that works?

[polar acorn]

yes

[rare basin]

perfect

ty

[rich adder]

use proper capitlization for props

[polar acorn]

it will get any component that implements that interface

[rare basin]

i think it has to be lower case @rich adder

[polar acorn]

I would not recommend using the name .gameObject though, since all components already have a property of that name

[verbal dome]

I think the idea is to match gameObject so it is just automatically implemented

When added to a monobehaviour

[rare basin]

yes

[swift crag]

Indeed.

[verbal dome]

Thats the whole point

[swift crag]

I somehow never thought of that

[rich adder]

oh had no idea it autoimplemented

[rare basin]

got it from stackoverflow, is this like outdated?

[swift crag]

I've really wanted to be able to make an interface that demands an object be...Component-shaped

[rich adder]

I wasted my time doing GameObject Object => gameObject 🥲

[verbal dome]

I used to make interfaces with GetGameObject() methods before I realized I can just add a gameObject property, which is already implemented in a MB

[swift crag]

Oh my god how did I never think of this

[rare basin]

lol glad i could help you think of something 😄

[polar acorn]

Ah, I get it, you want your interface to have access to the MonoBehaviour's gameObject property! That's actually brilliant

[rich adder]

hehe look at us learning new things every day

[swift crag]

I must have thought "but I couldn't implement the member myself..."

[polar acorn]

I've never thought of doing that either...

[rare basin]

exactly

[swift crag]

But you don't have to! Your type just has to have the member

Hence why you don't use override when implementing an interface

[rich adder]

game changer 😎

[polar acorn]

I have always just passed it in as a parameter, or made a new member

[swift crag]

you aren't overriding an abstract member. you're just meeting the criteria of the interface.

Now, this does still leave you with the bugbear of not being able to serialize interface types

But there are some workarounds..

e.g. https://github.com/Thundernerd/Unity3D-SerializableInterface

[steep rose]

you just made me go blind with that light

[rare basin]

so that way i can store ITarget and just check if that ITarget also implements IDamageable interface etc, just by doing if(currentTarget.gameObject.GetComponent<IDamageable>), or TryGetComponent right? no need to initialize that gameObject anywhere?

[swift crag]

Bingo

[rare basin]

im using odin inspector i think they are already serializing interfaces

[swift crag]

target.gameObject is accessing the gameObject member of whatever MonoBehaviour-derived type of yours implements the ITarget interface

[rare basin]

that's sexy lol

[swift crag]

And, if you decide you need some kind of "abstract target" that isn't actually a component, you just need to implement the gameObject property yourself

That might get icky if you decide you have to just return null

But I dunno if that would even happen in practice

Something I've learned over time: You have to draw lines in the sand about abstraction

"Yes, every target IS associated with a game object"

[rare basin]

right

[swift crag]

When you get more abstract, you're giving up on some capabiliities in exchange for being able to work with more kinds of things

if you go too far it decomposes into doing nothing to everything

very cool

public void PlayGame() {
  return;
}

[ancient hamlet]

i guess this answers my question " is there a specified case to use interfaces over just using the class"?

[swift crag]

"Them"?

interfaces, you mean?

[ancient hamlet]

interfaces yeah

[swift crag]

Yeah, that's the idea.

[rare basin]

that's also confusing atleast for me at the stary of my journey

when to use abstract classes instead of interfaces

[swift crag]

You assert that you only need a few capabilities.

Now you can operate on anything with those capabilities.

[rare basin]

is it just preference most likely

[swift crag]

But you can't do anything else!

[rich adder]

you cannot use multiple classes for 1 class , interfaces you can use as many as you want

[swift crag]

Abstract classes are used when there's actual concrete behavior you need to inherit

[rare basin]

so like Animal, Dog : Animal

get it, but i could also do like IAnimal?

[swift crag]

right, although the classic animal hierarchy falls apart really quickly

[verbal dome]

Do you people use default interface implementations?
Just realized I have still not used those

[swift crag]

Not really

They're mostly useful for inserting new members into an interface without breaking anything

[rare basin]

there is so much to learn about proper approch/patterns and this is terrying me 😄

when to use factory pattern, when to use this when that etc

i am spending more time designing my systems instead of coding them and learning

thinking im doing it "the wrong way"

[swift crag]

at some point you have to Make The Damn Game

[rich adder]

you will create paralysis by analysis don't

[ancient hamlet]

this is so true. time to restructure my class hieararchy

[verbal dome]

Most of my larger systems I have rewritten from scratch about 2-3 times before I got enough experience to do it right from the get go

[rich adder]

its a trail and error thing, see what works best for your projects eventually

you learn by making your mistakes and correcting them on the next iteration

[ancient hamlet]

hopefully not on production

[swift crag]

indeed

going from game to game, gradually refining the idea

My settings system is the result of like...four different projects

I like it now

I do not like what I had originally

Enum hell

[alpine fjord]

You learn more from failure than you do from success.

[swift crag]

and you learn more from doing something than from doing nothing :p

[verbal dome]

What did you move to?

[rare basin]

could you recommend any good learnign sources?

for intermediate level?

if any

[swift crag]

Each setting is now an asset.

[verbal dome]

Oh yeah, that thing

[rare basin]

i've been watching git-ammend on youtube but i barely understand his videos and the level of compelxity he's doing

[swift crag]

The doohickey

[lyric rapids]

I have script like this:

public class GameManager : MonoBehaviour
{
    public GameObject fallingObject;
    public float maxX;
    public Transform spawnPoint;
    public float spawnRate;
    bool gameStarted = false;
    void SpawnObject(){
        Vector3 spawnPosition = spawnPoint.position;
        spawnPosition.x = Random.Range(-maxX,maxX);
        Instantiate(fallingObject, spawnPosition, Quaternion.identity);
    }
    void StartSpawning(){
        InvokeRepeating("SpawnObject", 0.5f, spawnRate);
    }
    void Update()
    {
        if(Input.GetMouseButtonDown(0) && !gameStarted){
            gameStarted = true;
            StartSpawning();
        }
    }
}

And I try to put a prefab as a fallingObject but nothing falls when prefab is disabled, but when I enable it it falls and prefab gets destroyed so nothing can referance it anymore, why is that?

[swift crag]

"the prefab is disabled"?

is fallingObject in your scene? it shouldn't be

that should be a reference to a prefab asset

[rich adder]

you're probably touching the fallingObject prefab instead of the spawned instance

[lyric rapids]

I should delete it after I already made it into prefab?

[verbal dome]

Do you have a way of loading a setting from script? By GUID or something? Or do you need a direct reference to the asset

[swift crag]

Don't reference the object that's in your scene

[lyric rapids]

Exactly

[swift crag]

I store references to them. I can fetch all of my settings assets to construct the settings menu

But I never load them by name

[cosmic quail]

thats because he covers advanced topics for experts, start with someone more beginner friendly, like codemonkey or something

[rich adder]

Instantiate returns you the copy of the cloned object

[swift crag]

That's just an instance of the prefab

Which is no different from any other object at runtime

[ancient hamlet]

@lyric rapids you need to save the return of instantiate to a variable

[lyric rapids]

That does the trick, mb, thanks a lot once again

[swift crag]

The problem is that they're referencing a scene object instead of the actual prefab asset.

yeag

[rich adder]

just reminder, if you plan on destroying the spwned item do so on the Instance not the prefab

[swift crag]

I also never serialize them by name. The only strings I serialize are user-provided labels and a couple of niche settings, like screen resolution.

It is a bit of a nuisance to not be able to just write Settings.quality or something like that

I do have a few singleton assets that store commonly-used settings assets so I can refer to them without assigning a reference every time

[loud vault]

Will " yield return new WaitForSeconds(0f) " still wait one frame or will it execute the rest of the code on the same frame?

[swift crag]

I would expect it to wait for at least one frame (probably not more than one frame)

[wintry quarry]

any yield will wait a frame

[swift crag]

The core idea is to keep as much out of the game's code as possible. It's like how you wouldn't make a class for each kind of enemy in your game.

[wintry quarry]

What you would/should do is:

float timeToWait = whatever;
if (timeToWait > 0) {
  yield return new WaitForSeconds(timeToWait);
}```

[loud vault]

Thank you ^^

[valid vector]

anyone know how to use raycasts to tell where the player is looking

[cosmic quail]

cast a ray from the main camera's transform.forward?

[valid vector]

ok yeah but im in the code-beginner for a reason

[cosmic quail]

https://docs.unity3d.com/6000.0/Documentation/ScriptReference/Physics.Raycast.html use this and put the player's camera's transform.forward into the direction parameter

[wintry quarry]

What do you mean by tell where the player is looking

do you mean find out what the player is looking at?

You answered that in your question - use a raycast.

[valid vector]

like how far the point is from the camera

and i asked becuase i dont know how to use raycasts

[wintry quarry]

do a raycast and check the distance in the RaycastHit

You can see example code in https://docs.unity3d.com/6000.0/Documentation/ScriptReference/Physics.Raycast.html

RaycastHit has a distance property from you can get the distance https://docs.unity3d.com/6000.0/Documentation/ScriptReference/RaycastHit.html

[tiny vault]

Has anyone ever tried, where the console says null reference error, but you have referenced field assigned, with the correct type ? In this case it's a gameObject with an image component

[swift crag]

Perhaps you're looking at the wrong object.

Click once on the log message during play mode and Unity will select the offending object

[cosmic quail]

since when is that possible? 😮

[tiny vault]

but i have all the fields assigned

[cosmic quail]

it shows you the object that is null?

[swift crag]

Again: You could be looking at the wrong object

[naive pawn]

doesn't mean you couldn't have a null inside one of them

[swift crag]

It's also possible that you have a valid reference, but then you access a null reference from it

foo.bar.baz

if foo is null OR if foo.bar is null, you'll get an error

[naive pawn]

maybe show the line that's given in the stacktrace

[swift crag]

It shows you the "context" of the log message. You can provide one yourself:

Debug.Log("Hi!", gameObject);

[cosmic quail]

oh, i thought it automatically points you towards the object that is null

[swift crag]

Ah, no, it just selects a unity object

It's not telling you where in an expression the exception came from

[tiny vault]

I tried putting some Debug logs in to spot where null error arose from. Now i get this error, even though they literally are on the same prefab. Anyone got any ideas ?

[languid spire]

great that you dont show the line numbers of the code

[wintry quarry]

the Plus signs indicate you are not looking at the prefab itself.
You're looking at an instance of the prefab in the scene

[swift crag]

You still haven't proven that you're looking at the correct object

[swift crag]

well, it could be a prefab variant, i suppose

[wintry quarry]

or that

[swift crag]

but yes, I'd like to confirm that the actual prefab has these components

[languid spire]

add GetInstanceID to the debug and the gameobject as the second parameter

[polar acorn]

There exists a DoorController that does not also have a Door. Since the one you've shown has both, then that object is not the one this error is talking about

[dark brook]

it can also be that you are destroying door component somewhere in your code

[languid spire]

highly unlikely between Awake and Start

[dark brook]

true just pointing out the possibilities

[tiny vault]

I tried this, and console confirms they are indeed on the same

[languid spire]

my friend, that's a prefab not a scene object

[swift crag]

...how is Start even running?

[polar acorn]

Okay, but what about the error message? Add the instance ID to that message

[swift crag]

Instantiated objects get a negative instanceID (although persistent objects can have a negative ID, too)

But Start shouldn't be running on the actual prefab object

[tiny vault]

Im so fking stupid. Very new to Unity. There was just an old gameObject that i had forgotten to remove the DoorController script from. Adding the GetInstanceID helped. Was a good trick, thank you!

[swift crag]

That'll do it (:

[swift crag]

hence why I suggested doing this!

[verbal dome]

Pretty common mistake

[zealous olive]

someone can help me correct my code, I can't find the error, it's a 2d game
the error appears to be that the “groudCheckLeft” and “groudCheckRight” functions are not defined in the “PlayerMovement” function.
:

[swift crag]

Where is the actual error?

I don't see any errors indicated in the screenshot

if your code editor isn't showing errors and providing completions, see !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
• :question: Other/None

[slender nymph]

make sure you read the entire error message

[languid spire]

PlayerMovement is a class and your groudCheck's are fields none of them are functions

[zealous olive]

this is the first code I've done, so I don't know where the error is....

[slender nymph]

did you read the entire error message? because it tells you what you forgot to do

[naive pawn]

the stacktrace will tell you

[slender nymph]

it will literally say "You probably need to assign the groudCheckLeft variable of the PlayerMovement script in the inspector" which is what you've forgotten to do

[zealous olive]

sorry to ask this, but how do we do it? (I told you, I'm not really good at coding, considering it's my first).

[slender nymph]

ignore the code and drag the desired object into the slot on the object's inspector

surely whatever tutorial or course you are following would have shown you how to do that

[zealous olive]

no unfortunately 😅 🫠

[slender nymph]

then it's a shit course/tutorial or it is beyond your skill level. start by learning the basics. there are beginner c# courses pinned in this channel and the unity essentials then junior programmer pathways on the unity !learn site will teach you how to actually use unity

[eternal falcon]

:teacher: Unity Learn ↗

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

[zealous olive]

ok..

[wintry quarry]

the error appears to be that the “groudCheckLeft” and “groudCheckRight” functions are not defined in the “PlayerMovement” function
Make sure to actually read the error, because that's not what it says at all.

also they are not functions

[valid vector]

anyone know how to make the hand of this rig rotate so that the palm is against the object

[wintry quarry]

looks like you've already done it

[valid vector]

hold on

[wintry quarry]

anyway this is called inverse kinematics

look that up

[valid vector]

yes i know

but hold on

the palm is just keeping the same rotation as when its created

[verbal dome]

The rotation of the palm doesnt seem to change

Yeah

[wintry quarry]

You need to do a raycast and project the cast direction on the surface to get the tangent along which you want your hand to align

[valid vector]

is there any other way to do that

[wintry quarry]

wdym

what's wrong with that way

[valid vector]

idk how

[wintry quarry]

learn

you certainly don't know some other unknown way either

Physics.Raycast
Vector3.ProjectOnPlane

[valid vector]

ok so

how do i put that in

and where

[real grail]

You can also use RaycastHit.normal to get surface normal.
https://docs.unity3d.com/ScriptReference/RaycastHit-normal.html

[verbal dome]

You'd probably have a script that has LateUpdate, which runs after animations have completed.
In LateUpdate you raycast (red) along the arm towards the hand, and if it hits something then you get the normal of the hit(yellow) and use that to create a rotation for the hand

create a rotation for the hand
This part is more complex

[swift crag]

Indeed.

This is a very common situation

It's often easy to find one direction

But you need second direction to figure out a rotation

[verbal dome]

Cross products likely come in handy here

[swift crag]

Hence the "tangent"

[valid vector]

im just using an IK script on the hand and set the target to where the player is looking

[verbal dome]

Actually yeah probably should just project the arm's direction onto the surface with ProjectOnPlane like praetor is suggesting I think

This way you get the "forward" direction of the hand resting on the surface

You can use the normal as the "up" direction

And from the forward&up you can construct a rotation

[swift crag]

Vector3.Project tells you how much of a vector lines up with a second vector

Vector3.ProjectOnPlane tells you how much doesn't line up

[valid vector]

that doesnt really help me understand what im suppoused to do

my idea was just point the front of the palm away from the camera but obviously that wouldnt work

[verbal dome]

Maybe this is a bit over your skill level then

Need to be fairly familiar with vector maths to do this kinda thing

[valid vector]

i just thought it would be funny for the player to touch things

well i give up

i will fix this when i have more time

bye

[verbal dome]

Now that I think of it, it could be as simple as cs transform.forward = armForward; transform.up = hit.normal;
Orcs transform.rotation = Quaternion.LookRotation(armForward, hit.normal);

[swift crag]

actually, yeah

that's all you need

the vectors don't have to be orthogonal

[verbal dome]

Yep

Might be some weird edge cases that need to be handled

But that should get one started

[wind hinge]

If I have a really low framerate, and have say something that moves all the ways to the right, and then back to the left based on Time.time

Is it possible that the frame hithces or pauses could be perfectly so that you never see it move?

;-;

How to avoid that, or should I even care?

bc Time.time is not capped

[swift crag]

Sure -- if the object's position is entirely a function of the time, it could stay in the same spot forever given the appropriate framerate

(although, I'm pretty sure Time.time can't increment by more than the maximum delta time of 1/3 of a second)

[wind hinge]

i have an animation that is a function of the time

[wind hinge]

oh i see

i didnt know it actually was capped

[swift crag]

Hopefully your game isn't running at under 3 FPS

[wind hinge]

oterhwise?

[slender nymph]

well if your game runs at less than 3 fps then you have some serious problems

and at that point, it's more a slideshow than a game

[wind hinge]

it does not

[verbal dome]

It's a setting in the Time settings
https://docs.unity3d.com/6000.0/Documentation/ScriptReference/Time-maximumDeltaTime.html

[swift crag]

Why are you concerned about this? Does the object need to collide with things, perhaps?

[verbal dome]

I really wish these docs would show the default value

[wind hinge]

no its purely visual

[frosty field]

https://hatebin.com/acjnhwjbti
so i have this basic movement script for my game, but when i walk into objects my character just keeps moving forward and its getting like teleported back, its looking very bad and when i walk into an object mid air, it also keeps me in air for few more seconds, what can i do to avoid it?

[cosmic quail]

who told you to use transform.Translate

[rocky canyon]

the biggest issue is you're using translation to directly move ur character..
tranlsation doesn't consider collisions

if u want to continue to use transform.position/translate to move the player you'll have to end up doing a few work-a-rounds to get it to behave correctly

[frosty field]

well, i watched unity junior programmer lessons and they used it there so i thought its a good idea

[rocky canyon]

if u swap over to rigidbodies u could use playerRB.velocity = or playerRB.linearVelocity considering which version of unity ur using..

and for the platforms u could use playerRB.MovePosition

[frosty field]

should i use rigidbody?

[rocky canyon]

if not then i'd def use a CharacterController and its Move() function

[cosmic quail]

you mean the lessons in learn.unity.com? 😱

[frosty field]

yea

[verbal dome]

Was it the one with a car?

[rocky canyon]

Rigidbody-based movement ensures the player collides properly with objects and doesn’t "teleport" or clip through them.

[frosty field]

the one with car, and that dude throwing pizza and some more, idk i watched a lot of it

[rocky canyon]

rb will almost certainly improve the feeling and collisions

[frosty field]

so i should rewrite the whole thing to use rigidbody and that's the best solution?

[verbal dome]

I've seen the car tutorial that moves a rigidbody with Translate. It's a bit embarassing

[rocky canyon]

imo yes..

[frosty field]

okayyy

thanks for help

[rocky canyon]

actually i prefer Kinematic Rigidbody solutions.. (kinda best of both worlds) but thats a bit more complex

[cosmic quail]

it shouldnt be hard, just replace the transform.Translate and transform.Rotate with its rigidbody equivalents, for example instead of transform.Translate use rb.velocity/linearVelocity like Spawn recommended

[frosty field]

okie dokie

[cosmic charm]

Hi, I'm currently working on 2d fighting game for 2 players, I finished coding of the character that fights, but now i'm struggling with doing the 2 players system, how can I make it so I have 2 characters, each work dependently of each others?

I would appreciate any help, my project deadline is so close 🙂

[verbal dome]

You mean independently of each other?

Ideally both characters would use the same scripts

Just different instances of those script components of course

[languid spire]

start panicking. multi-player even local needs to be designed in from the start not added as an afterthought

[rocky wyvern]

Local or online?

[cosmic charm]

local

[cosmic charm]

well

[frosty field]

am i stupid? i've red the unity documentation about lienarvelocity and came up with
playerRb.linearVelocity = new Vector3(0, 0, vertical);
playerRb.linearVelocity = new Vector3(horizotal, 0, 0);
(also tested a lot of different solutions)
none of them works as i want, whyyyyy?

[cosmic charm]

i'm cooked, I guess?

[rocky canyon]

        playerRb.linearVelocity = new Vector3(0, 0, vertical);
        playerRb.linearVelocity = new Vector3(horizotal, 0, 0);```
setting velocity wont keep the velocity it already has

ur effectively re-writing it on ur very next line

for example if u wanted to keep the X and Y on the first and just adjust the Z
it'd be more like
playerRb.linearVelocity = new Vector3(playerRb.linearVelocity.x, playerRb.linearVelocity.y, vertical);

you'd pass in its own velocity it already has to the X and Y if u dont want to mess w/ those

otherwise ur setting them to 0 killin off any velocity

[frosty field]

oh okay

i wanted to do it like that

[rocky canyon]

 if (Input.GetKey(KeyCode.Space) && isGrounded)
        {
            playerRb.velocity = new Vector3(playerRb.velocity.x, jumpHeight, playerRb.velocity.z);
            isGrounded = false;
        }``` for example this would be a jump

[frosty field]

but i used Vector3(transform.position.x, transform.position.y [...]
and it did not work

[willow breach]

ok so after a long time i understood why my socket messages are being sent from unity editor but not from iOS
Failed to send event my-event: Operation is not supported on this platform. The unsupported member type is located on type 'System.Object[]'. Path: $.
how do i go around it?
this is the lib im using
https://github.com/itisnajim/SocketIOUnity.git
and here is my event emitting:
public void EmitEvent<T>(string eventName, T data) { string jsonData = JsonConvert.SerializeObject(data); Socket.EmitAsync(eventName, jsonData); }

[verbal dome]

For velocity?

[rocky canyon]

i usually construct my vector like FinalVector during the update after i get my inputs.. and then after everything is added together i'll pass the final vector

[frosty field]

yeah i used it cuz i didnt knew i have to put rigidbody instead of transform

[cosmic charm]

Currently this is what i'm working with, but they are using the same controls, so yeah, I don't really know how to fix it, I was thinking of making a constructor that takes the controls from the PlayerManager, but I don't know if this is the right approach

[verbal dome]

You need to understand the difference of a position vector (like transform.position) and a directional vector (like a velocity)

Wouldn't make sense to plug a position into a velocity

That would just yeet you outwards from (0, 0, 0)

[real grail]

You could give each player diffrent controls example. Player 1 uses WSAD Player 2 uses arrows
ect.

[rocky canyon]

  public float speed = 5f;
    private Rigidbody rb;
    private Vector3 moveInput;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    void Update()
    {
        // Read inputs in Update
        float horiz = Input.GetAxis("Horizontal");
        float vert = Input.GetAxis("Vertical");

        moveInput = new Vector3(horiz, 0f, vert).normalized; // Normalize for consistent speed
    }

    void FixedUpdate()
    {
        // Apply movement in FixedUpdate
        rb.velocity = new Vector3((moveInput.x * speed), rb.velocity.y, (moveInput.z * speed));
    }```

heres just the most basic of RB controllers..

[cosmic charm]

Well let's say I'm so Negative now after what @languid spire said, and I feel like i will do all of it for nothing ...

[verbal dome]

How much time do you have?

[cosmic charm]

should I make a new class for controls or the Player Manager could handle all of that?

[cosmic charm]

ummmmmm 5 days

[verbal dome]

That's manageable, as long as you put in enough effort

And depending on how complex the game already is and how it is designed

[cosmic charm]

the thing is I'm so lost, I don't know where to start from

[verbal dome]

Search for local multiplayer tutorials for unity?

[cosmic charm]

I did, some of them are so complex to the point I don't understand how to implement the idea to my project, and some of them are stupidly simple, couldn't find anything in the middle, I even tried Udemy

[frosty field]

well, that does work but it creates a huge weird input delay....

damnn

i didnt know making player move is so hardd

[verbal dome]

The "delay" is probably because input axes have some smoothing to them by default

You can use GetAxisRaw to ignore that smoothing

[steep rose]

might be because of the getaxis

yup

[verbal dome]

You can also change the smoothing in the input manager

[steep rose]

you would generally use getaxisraw for instant movement

but it depends on preference

[frosty field]

okiee that does work now

[rocky canyon]

whoopwhoop

[frosty field]

but still its kinda weird for me

[rocky canyon]

even w/ that little change u should have much better colllisions w/ walls now

[frosty field]

why do i have to put movement in fixedupdate and make it complicated instead of just using
playerRb.linearVelocity = new Vector3(horizotal * speed, playerRb.linearVelocity.y, vertical * speed);
in update?

[polar acorn]

Because then your movement speed would fluctuate based on framerate

[steep rose]

Because it needs to reside on the physics step, unless of course you want framerate dependent movement

[frosty field]

oh yeah right

[verbal dome]

I think assigning velocity in Update is safe

Adding continuous forces is not

[frosty field]

okie i will just stick to fixedupdate then

still a little issue

[verbal dome]

This doesnt affect anything until the next fixed update anyway

[cosmic dagger]

you can assign velocity in Update. it won't run until FixedUpdate . . .

[steep rose]

then just keep it in FixedUpdate

[verbal dome]

I'd keep it in FixedUpdate for clarity's sake

[steep rose]

yup

[verbal dome]

Also fixedupdate runs just before update...

[frosty field]

i used transform.rotate to rotate my character before, now when the character rotates its still moving along the normal xyz axis

[verbal dome]

So update would introduce one frame of delay, right?

[steep rose]

probably not, as if it does run only until the next FixedUpdate call it shouldn't provide any delay and even if it did it probably would be minuscule and unrecognizable

[rocky canyon]

ive always still used transform to rotate.. never really an issue in my projects..

using torque and stuff was a bit complicated

[frosty field]

weird

i use rotate and it feels like its not rotating at all

but it is rotating

[rocky canyon]

now if my character had to turn and rotate real-world objects. then yea i probably woulda figured out how to do it with Torque

but my player rotation has nothing to do w/ collisions

[frosty field]

it feels like the mesh is rotating but not the rigidbody or something idk

[verbal dome]

The order is:
FixedUpdate -> Physics update -> Update

So if you set the velocity in Update, it will have effect in the second Physics Update
If you set it in FixedUpdate, it will have effect immediately in the first Physics Update

[frosty field]

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

[rocky canyon]

if the object the rigidbody is attached to rotates.. the rb rotates w/ it

[frosty field]

waitttttt

i think i set my rigidbody to have fixed rotation so it wont spin in air in radom directions

[frosty field]

(sorry for flood)

[rocky canyon]

unless u have code rotating the rigidbody too.. then there would be conflicts

fun fact.. my rigidbody controller doesn't actually rotate.. i rotate a gameobject and the rigidbody just moves (in that objects forward direction)

[steep rose]

well even so, it would be a minuscule difference of delay

[rocky canyon]

cool fact

[verbal dome]

I can't believe that people don't care about a whole frame of delay in the input

When it can be easily mitigated

[rocky canyon]

i shot him first I swear!

[spare mountain]

hey I've played games with full seconds of input delay

this is a breeze

[rocky canyon]

dollarstore wifi Ftw!

[spare mountain]

dollar store wifi playing on a virtual machine hooked up to a server

[rocky canyon]

COD becomes a prediction shooter 😉 lol

[steep rose]

I'm not saying to ever put it in update, I would keep it in fixedupdate either way

[spare mountain]

HELP 🤣

[rocky canyon]

ya, u could technically get away with putting it in either.. since changing the velocity in update wont take affect until fixedupdate..

[verbal dome]

It can be slight but it also scales with your framerate

[rocky canyon]

the only thing i dislike is when input is done in fixedupdate

feels soo janky and disconnected

[verbal dome]

But I just explained why it's sometimes better to do it in FixedUpdate

Do you want to start moving this frame or the next frame?

[rocky canyon]

true true.. im moving to the new input system either way.. soo my input code is irrelevant as of now

[verbal dome]

When you press a button

[steep rose]

well of course it does

[rocky canyon]

im guessing a full refactor is in order

[swift crag]

are we bikeshedding? i like bikeshedding

[rocky canyon]

my game runs at 400 fps at the moment..
my body doesn't and couldn't ever discern 1 frame of input lag

[verbal dome]

What if your game is performance intensive and runs at ~60FPS
I'd rather not have an extra 16ms delay on the input

[rocky canyon]

oh wait.. i use a CC.. soo doesn't matter to me either way heheh

[steep rose]

I should probably continue working on my project 😅

[rocky canyon]

as should I, lets do it 👊

[swift crag]

I would not say these things run "before" or "after" each other at all

nevermind i totally would lmao

[swift crag]

I'm not sure exactly when the input state gets updated, though

If it's updated when the input events happen, then we are doomed

[rocky canyon]

i have that pinned up on my wall ^

[swift crag]

It'd be worth testing that

[rocky canyon]

i still need it for OnMouse stuff

[verbal dome]

I mean this is what i see

[steep rose]

good point, so then there is no reason to keep rb.velocity in update

[verbal dome]

FixedUpdate does have the most recent input

According to my tests

[swift crag]

excellent

[rocky canyon]

try it both ways and see for urself

[steep rose]

which would be an accurate assessment

[swift crag]

The extra 16ms of input lag makes the game more cinematic.

[steep rose]

yeah true

[verbal dome]

If you have time please test it also so I can get some confirmation lol

[rocky canyon]

i doubt you'll see anything.. but just maybe

[swift crag]

Was this with the input manager or the new input system?

[verbal dome]

Old system

Input manager

[steep rose]

well if I cap my framerate to 60 sure I'll notice something (or even lower)

[rocky canyon]

ya, you'll feelit more than see it i imagine...

[rocky canyon]

builds are typically faster than editors i think..
my game might peak at 600 fps.. 👀 that just means im lacking content

[swift crag]

it's worth testing your game at like

5 FPS

this can make execution order problems very obvious

[verbal dome]

@swift crag Pretty recent test I did: #💻┃code-beginner message

[steep rose]

you could feel it and see if done right (i.e recording while looking at a wall with markings and see if there is any or not)

[rocky canyon]

and expect it to work thru the entire game-loop?

thats very high expectations lmao

[swift crag]

I spent a while getting the order exactly right (through a mixture of script execution order and by adding explicit ordering to my code)

I had issues like the eyes of entities looking at a position from one frame behind

which was really obvious during fast movement

[verbal dome]

I gave up on relying on excecution order too much

[rocky canyon]

ive only did that for my game-manager to initalize things.. im more than certain i'd break something if i played with the execution order too much

[swift crag]

and my cameras were off by one frame, causing clipping through tight spaces

[verbal dome]

I like manually calling things from a centralized script

[steep rose]

you could still cap framerate in builds with Application.targetFrameRate right?

[swift crag]

I reserve it for third-party assets I don't want to fuss with too much

[rocky canyon]

as far as i know yea

[swift crag]

My own code just gets run in an explicit order

[verbal dome]

Also helps with quickly placing profiler markers on different systems

I admit it was Fen who got me to use those

Less deep profiling

[swift crag]

I'm slowly filling my game with profiler markers

they're really nice for getting a quick overview of hot spots

[desert current]

Is there any part of this script that would need to be adjusted to have frame rate independence? The game works perfectly in Unity but as soon as I try and build the character doesn't move the way I want it to, which I think is an error with the frame rate difference. Thanks!

https://paste.ofcode.org/d88BCDecHswsNESymRP8Mf

[swift crag]

what does "doesn't move the way I want it to" mean?

[desert current]

It slightly overshoots the target position

[wintry quarry]

There's some really weird stuff happening with "slimetype". It seems like that should be an enum or an int. Why is it a float?

And yes using a coroutine like that with WaitForSeconds with MoveTime is sensitive to framerate differences

This script overall seems overcomplicated for what I think it's doing

[green flame]

Hello! Someone can explain why I get this error "NullReferenceException: Object reference not set to an instance of an object"

I don't understand here is my entire script ^^

[slender nymph]

https://unity.huh.how/runtime-exceptions/nullreferenceexception

[polar acorn]

Look at the line the error says it is on. Something on that line is null but you're trying to do something with it anyway

[real grail]

Your Rigibody2d is null you need to tell your script what rigibody you are setting it to something like this:

    Rigidbody2D rigidbody2d;

    private void Start()
    {
        rigidbody2d = GetComponent<Rigidbody2D>();
    }

[green flame]

Thx guys! This works now :3

[keen cargo]

hey hey quick question, does anyone have a good tutorial/resource about loading, main menu, start game?

Before i try to go and find myself, maybe someone has a good resource on hand

[rocky canyon]

brackeys has a pretty basic one

[wispy coral]

anyone know if the OnTriggerEnter Function work?

[keen cargo]

alrighty thanks

[rocky canyon]

https://www.youtube.com/watch?app=desktop&v=iXWFTgFNRdM&t=0s
this one is a really good one

[wispy coral]

it basically tells me it doesnt exist

[keen cargo]

ohh nice, thanks again 🙏

[rocky canyon]

may have to combine the two.. b/c this one doesnt go into the Menu and buttons and stuff

[undone depot]

know how would i add that delay?

[rocky canyon]

just moer about the loading screen and progress bars

[rocky canyon]

np, best o luck 🍀

[wintry quarry]

You need a coroutine

[rocky canyon]

Coroutines.. and WaitForSeconds(

[keen cargo]

it depends what you mean by "does it work"

need more context

are you making a 2D game by chance?

[wispy coral]

basically doesnt even think it exists

[keen cargo]

within 2D pipeline?

[undone depot]

alright so what does that mean

[wispy coral]

no im making a 3d game

[rocky canyon]

it depends on if it has a collider

• set to trigger
• and theres a rigidbody in the mix

[slender nymph]

be more specific

[keen cargo]

can you send a screenshot of how it's saying that?

[rocky canyon]

look it up https://gamedevbeginner.com/coroutines-in-unity-when-and-how-to-use-them/

[keen cargo]

you need to finish writing it

[wispy coral]

doesnt auto complete, and doesnt work when finished

[wispy coral]

i tried

[rocky canyon]

is it within the monobehaviour ?

[wispy coral]

what do you mean by that

[rocky canyon]

public Class : Monobehaviour
{
// inside these brackets
}

[wispy coral]

oh yes it is inside it but it doesnt seem to be working

[keen cargo]

send the full snippet

of the code file

[rocky canyon]

!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.

[wispy coral]

gimmie a sec

[rocky canyon]

also make sure ur IDE is configured correctly

!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
• :question: Other/None

[wispy coral]

it might just be my ide

ill try first to fix it

[rocky canyon]

easy to check.. at the top it should say AssemblyCSharp

in the left top corner above the text area

[keen cargo]

it's possible but it's showing the DetectCollision.OnTriggerEnter when you were hovering over it

[rocky canyon]

when its not configured w/ unity it'll still do stuff within the class and stuff..

it just wont know any Unity specific stuff

[wintry quarry]

Time to do some learning!

https://docs.unity3d.com/6000.0/Documentation/Manual/coroutines.html

[wispy coral]

it seems its already set up properly

[rocky canyon]

hover Monobehaviour <-- at the top of ur class

if it refers to Unity it should be good

[keen cargo]

like this

[wispy coral]

yep it refers to unity

do all my game objects have to have rigid body for it to work?

[rocky canyon]

remove the private and just type OnTriggerEnter

[rocky canyon]

just one of the objects involved w/ the trigger interaction

[keen cargo]

onTriggerEnter

[rocky canyon]

OnTrigger

not OnEnter

[wispy coral]

alright so im fine

Ohhh ok my bad

Yes it does appear

[rocky canyon]

yea, just dont type private or public before it

it get confused

it thinks ur wanting to create ur own function

[wispy coral]

i see

so where do i need to put it if i need to detect collisions?

[keen cargo]

private/public is ok, my ontrigger works fine with it

[cosmic dagger]

You can put the accessor before it, that shouldn't affect anything . . .

[rocky canyon]

think about how u want it to work...

if the trigger is on an object ur player needs to cross into to pick up.. it'd make sense to have the OnTriggerEnter on the player to detect when it crosses into that trigger

or.. u can put it on the object.. and check if hte player crosses into it

its just whichever

[keen cargo]

public class Bullet : MonoBehaviour
{
    private float topBound = 5f;
    // Update is called once per frame
    void Update()
    {
        if (transform.position.y > topBound)
        {
            gameObject.SetActive(false);
        }
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.CompareTag("Enemy"))
        {
            collision.gameObject.GetComponent<EnemyHealth>().TakeDamage(1);
            gameObject.SetActive(false);
        }
    }
}

I have my bullet projectile set up like this for an example

[rocky canyon]

in this example the Bullet is a the trigger.. and its detecting when an Enemy tagged object crosses into it

[wispy coral]

I meant if i put it on void Update() or void Start()

[keen cargo]

don't put it under either

it's a separate function

look at my script

[rocky canyon]

u should use TryGets they're more optimized than GetComponent

[keen cargo]

oh what's those?

[wispy coral]

thats exactly what im trying to do but it just doesnt allow me

[polar acorn]

Show a screenshot of where you're putting it

[wispy coral]

like a full script screenshot?

[rocky canyon]

        if (collision.gameObject.CompareTag("Enemy"))
        {
            EnemyHealth enemyHealth;
            if (collision.gameObject.TryGetComponent<EnemyHealth>(out enemyHealth))
            {
                enemyHealth.TakeDamage(1);
            }
            gameObject.SetActive(false);
        }```

[polar acorn]

Type it up, let it be underlined, then send a screenshot of your IDE window with that script open

[polar acorn]

Yes, full IDE window

[rocky canyon]

if it doesnt have an EnemyHealth.. theres no need using GetComponent<EnemyHealth> when its gonnna be null anyway

[polar acorn]

Okay, finish declaring the function and it'll work

[keen cargo]

ohh i see

what's the (out enemyHealth) part though?

[rocky canyon]

if ur using VSCode u may want to install the UnitySnippets plugin

[rocky canyon]

if u havent already

[wispy coral]

when i do it creates a seperate function

[rocky canyon]

if it finds that component it automatically assigns it to the enemyHealth Variable

[wispy coral]

i will try that

[rocky canyon]

right above it

[polar acorn]

Yes that's how it's supposed to work

[polar acorn]

It is a separate function

[wispy coral]

i meant a custom function thats not OnTriggerEnter But one named it

[wintry quarry]

Now you're getting it

[polar acorn]

What?

[wispy coral]

yeah its weird

[polar acorn]

No, I mean what are you talking about

You want to make a function named OnTriggerEnter

[rocky canyon]

when he types private before OnTrigger...

[keen cargo]

it's not autocompleting the function for him basically

[rocky canyon]

it doesnt autocomplete

[wispy coral]

even without private

[wintry quarry]

Why doesn't he just say that lol

[rocky canyon]

soo OnTrigg wont autocomlpete it?

[polar acorn]

VSCode doesn't really do autocomplete very well

[rocky canyon]

yea, install that UnitySnippet plugin for better results 👍

https://marketplace.visualstudio.com/items?itemName=kleber-swf.unity-code-snippets

[wispy coral]

i will install that

[rocky canyon]

wait.. is that one for code?

yea it is

[wispy coral]

im genuinely so sorry yall

[rocky canyon]

dont be.. its how u learn

plus there may be 4 or 5 lurkers that didn't know that either

just helped them too lol ¯_(ツ)_/¯

[wispy coral]

the extension actually did it

[rocky canyon]

heck ya.. its almost required if u wanna use VSCode for unity

[wispy coral]

thanks so much

haha didnt even know about it

hadnt had any problems until now

[rocky canyon]

fun fact.. u can create ur own snippets in vscode

probably other ide's too but i know for sure in vscode

[wispy coral]

huh that interesting

[rocky canyon]

ya, u may get to a point where u want to..

just sayin

[wispy coral]

i gotta investigate more stuff about vscode

either way thanks

saved my life

[rocky canyon]

np 🍀

i think u'd live w/o it

but ur welcome 😉

[keen cargo]

lol i was basically forced off of vscode by my teacher

[rocky canyon]

for what? vs studio?

[keen cargo]

yep

had our first unity class so I was using vscode, was thinking "hmm why doesn't anything autocomplete and where are the funny colours"

[rocky canyon]

the ole vs fued..

[keen cargo]

he comes over "oh you're using vs code, i don't know how to use that lol"

[rocky canyon]

will continue til the end of days

[rocky canyon]

i use it b/c i develope for microcontrollers..

[wispy coral]

my only reason for being on vscode is that my pc cant handle rider or vs2022

[rocky canyon]

😄 solid reason

vs2019 crying in the corner

[rocky canyon]

sad.. imo
even if he didn't use it for his class you'd think he'd still have some familiarity with it

before a code review.. just open ur solution in vscommunity and delete the .vscode folder

ezpz ;D

[steep rose]

everyone is lurking

[rocky canyon]

out of 18k+ users there has to be atleast 1

[steep rose]

us and the others where they are waiting to help someone, just like a velociraptor

[frosty field]

does anybody knows how to fix sticking to walls while mid air and holding direction key towards that wall? like on screenshot

[rocky canyon]

slippy material (Physic materials)

[undone depot]

remove the sticky goop on the cubes

[undone depot]

learned how to coroutine btw, ty

[rocky canyon]

np! you're now more powerful than ever 💪

just a tip i wish i woulda known at first.. sometimes you'll need to Stop a coroutine..

just cache it when u start it.. and then u can use that variable to stop it

[frosty field]

thank you a lot ❤️

[ashen gulch]

is there a way to find an inactive GameObject?

[teal viper]

If it being inactive is the only criteria, it might be difficult

[mint lion]

what are you trying to do?

[ashen gulch]

Was trying to set some objects active when starting the game game with them inactive.

[mint lion]

if you know the transform to look under, then you can check the child gameobjects - gameObject.activeSelf indicates if it's active or not

[wispy coral]

is vs2022 too different from vscode?

i stopped liking vscode

its way too basic

(without extentions) for my taste

[mint lion]

VS is an IDE, VSCODE is more of a text editor on steroids. both will work (editin C# for Unity). VSCODE is more lightweight.

[undone depot]

i was actually wrong, it seems it wont work in practice actually ( i just used a test script to figure it out )
i cant really find an issue with it though

[wispy coral]

do they have the same feel, like they look similar or their layouts are similar?

[teal viper]

Reference it in the inspector.

[undone depot]

would it be fine to post the attacking script?

[steep rose]

They are different yes with different use cases, VSC can be an IDE via extensions

[wispy coral]

alright, do i need the c++ workloads for vs2022? or just the unity one

[steep rose]

to configure it?

just follow this guide, !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
• :question: Other/None

[mint lion]

yes and no. they're both free (VS community) so download both and try them.

[mint lion]

just unity and .net

[frosty field]

does anybody knows how to remove glitch that allows someone to double jump when they stick to a wall?

[wispy coral]

got it

[mint lion]

.net desktop (workload)

[steep rose]

you would have to show your setup and code

[mint lion]

most likely an issue related to how you determine 'is grounded' or you're not checking if you're grounded before jumping

[frosty field]

https://pastebin.pl/view/24b0f399

that's basically my player movement script

[frosty field]

i use capsule as a player and i think that this might be the issue

i use colliders set like this

[steep rose]

you are allowing your jump if you have collided with anything

[frosty field]

well...

[steep rose]

you would probably want a ground check for that

[frosty field]

and.. how to do that? is there a premade function that i can use?

[quasi dawn]

Nope

But you can use Ground Layers and Physics Overlaps

[steep rose]

Raycast/spherecast would be good, overlapsphere would also suffice

Raycasts do return a boolean, so you could just assign an isgrounded boolean to it

[valid vector]

ok real quick does anyone know how to make an object not inherit its parent's scale

because my movement scales the player and that messes with other things and causes shearing

this just feels yucky to look at

[mint lion]

no. either change parenting or change the scale.

[valid vector]

well im not rewriting the entire fucking player code

[frosty hound]

There is no magic setting to toggle.

[valid vector]

this engine can make some of the best indie games in human history and cant individually scale child objects

[mint lion]

a gameobject's scale is based on its parent (if it has one)

[valid vector]

it does

and i dont know how to make it face the way it does without parenting it to the player

like how do i make it have the same rotation and position as the camera without parneting it to it

[cosmic dagger]

Easy, use a position and a rotation constraint component . . .

[steep rose]

code

[valid vector]

yes

[cosmic dagger]

I think there's a parent constraint as well. Type "constraint" when adding a component to see what pops up (away from the computer, ATM), or check Google. They have a bunch of constraint components . . .

[mint lion]

what does "my movement scales the player" mean?

[valid vector]

but code what

[valid vector]

well the player is naturally 1.5 in hieght and hets shrunk down to 0.5 when crouching

[steep rose]

literally just set object A to object B using .position and the equivalent code after, the same applies to rotation

[ashen gulch]

I dont understand what it wants from me, the variable is already set in the inspector prior to PlayMode, after setting it Active.False it just forgets about it I guess.

[mint lion]

ah. you should be changing the collider height, not the gameobject scale

[cosmic dagger]

Check for a duplicate script. Also, we can't tell if that is the correct script or not bcuz the image is cut-off . . .

[valid vector]

well i didnt write the code

it was a tutorial

[ashen gulch]

Only a single object with that script

[slender nymph]

how have you confirmed that?

[cosmic dagger]

Is this a prefab from the project folder or the GameObject in the scene?

[ashen gulch]

In the scene

[slender nymph]

first, you need to search by type, not by name. use t:UIManager and second, you also need to ensure you do this search during play mode when the error appears

[mint lion]

is there any more to the stack trace?

[ashen gulch]

Nope, nothing new

what the ...

It started working

how t*

Aint changed nothing... and it starts working.. (unity just wants to emberass me)

[quasi dawn]

        {
            Flip(currentVelocity);
            if (Mathf.Abs(_rb.velocity.x) < maxSpeed)
            {
                _rb.AddForce(Vector2.right * currentVelocity * walkForce);
            }
            else if (Mathf.Abs(_rb.velocity.x) > maxSpeed)
            {
                _rb.velocity = new Vector2(Mathf.Sign(_rb.velocity.x) * maxSpeed, _rb.velocity.y);
            }
        }
        else
        {
            _rb.velocity = Vector2.Lerp(_rb.velocity, Vector2.zero, 0.5f);
        };```
Is this a good way to make 2D movement?

I tried making the deceleration process by adding counter forces but it was giving some weird results

Most likely me being bad at coding, but yeah
I decided to "cheat" by Lerping the velocity for deceleration

[rocky canyon]

i do that for my CC for momentum damping

i use MoveTowards tho.. when lerping, passing it the variable ur actively lerping as one of the parameters isn't a good way to lerp.. (you'll never reach the target that way)

[quasi dawn]

That was how the Documentation showed it I think

[rocky canyon]

im very skeptical of that.. but its possible.. its a super common mistake.. and theres entire web-dev logs devoted to it

https://gamedevbeginner.com/the-right-way-to-lerp-in-unity-with-examples/

[quasi dawn]

ah

Thank you

[rocky canyon]

https://gamedevbeginner.com/wp-content/uploads/Trick-Lerp.gif
bout here is where it shows exactly what ur doing

just note.. it probably isnt gonna be "game breaking" or anything

[quasi dawn]

So when reading it, I mentally replace the transform.position with _rb.velocity?

[rocky canyon]

yea.. all the other example you'll notice the variable they're setting

is not included in the lerp

[quasi dawn]

I see

They added a local variable for taking the current position

Maybe doing the same with the currently velocity will avoid that

[rocky canyon]

public float targetValue;

void Start()
{
  StartCoroutine(LerpFunction(targetValue, 5));
}

IEnumerator LerpFunction(float endValue, float duration)
{
  float time = 0;
  float startValue = valueToChange;

  while (time < duration)
  {
    valueToChange = Mathf.Lerp(startValue, endValue, time / duration);
    time += Time.deltaTime;
    yield return null;
  }
  valueToChange = endValue;
}```

[wispy coral]

is there a way to make vs2022 not so laggy or is it just like that

[rocky canyon]

yup, but theres also alternatives..

like MoveTowards()
SmoothDamp etc

smoothstep rather

[rocky canyon]

🤔 no lag here

[wispy coral]

its just my crappy laptop

[quasi dawn]

Isn't that a bit overkill?

[rocky canyon]

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

movetowards doesnt take any of that extra stuff

thats y i prefer it

[quasi dawn]

The only way i'm using Lerp is for decelerating a rigidbody, so it doesn't feel as unnatural as just outright setting the velocity back to zero

[rocky canyon]

ya, i know what u mean.. my momentum stuff does the same thing

            airVector = Vector3.Lerp(airVector, airVector + airControlVector, characterSettings.airControlStrength * Time.deltaTime);
            groundVector = Vector3.Lerp(groundVector, Vector3.zero, characterSettings.airDamp * Time.deltaTime);``` this is at the end of my update loop

just two vectors i constantly feed to my CC's Move() function.. when its not being actively updated by the input it slowly fades to zero

[quasi dawn]

AAH WAIT

I GET IT NOW

[rocky canyon]

ohh lookie, lookie.. those are worng

😄

those should be MoveTowards()

they are in my updated version

[quasi dawn]

It will keep going forever since it'll never actually reach zero

I see it

[rocky canyon]

yea, it keeps cutting the result in half

and it keeps getting incremently smaller and smaller and smaller

[quasi dawn]

Nice to know :D

[rocky canyon]

yea, just a weird thing most ppl learn after they use lerp a few times

[quasi dawn]

It's probably best to just add a condition in case the value reaches a certain threshold

[rocky canyon]

thats a solution as well 👍

[quasi dawn]

Maybe a While loop?

Idk I've been avoiding while loops since every time I tried them, the editor would freeze

[rocky canyon]

i think its simpler than a while loop hold on

   valueWeChange = Mathf.Lerp(valueWeChange, 0, Time.deltaTime * 5f);
   if (valueWeChange < 0.1f) valueWeChange = 0;```

[quasi dawn]

You can make an if without the {}?

That's cool

[rocky canyon]

as long as its a single line

[alpine fjord]

Yes, but that doesn't mean you should.

[quasi dawn]

I couldn't directly change the rb.velocity through this way for some reason

            Vector2 rbCurrentVelocity = _rb.velocity;
            if (Mathf.Abs(rbCurrentVelocity.x) < 0.01f)
            {
                rbCurrentVelocity.x = 0f;
            }
            _rb.velocity = rbCurrentVelocity;```
So I had to create a local variable to hold it`

[rocky canyon]

does it work?

[quasi dawn]

Due to readability?

[quasi dawn]

Ayup

[rocky canyon]

ya, basically that'd be the only legitimate reason

that and scaleability.. if u had to add more than 1 line.. u'd have to add the brackets back..

lord forbid

[alpine fjord]

Yeah. Making it easy to read should be the most important.

[quasi dawn]

Now I wonder, with my current movement code
Would I be able to add movement hazards?

Like strong wind or moving platforms, stuff like that

[rocky canyon]

            if (Mathf.Abs(rbCurrentVelocity.x) < 0.01f)
                rbCurrentVelocity.x = 0f;

            _rb.velocity = rbCurrentVelocity;```
is pretty readible to me..
but, i get it

[quasi dawn]

Since I am using forces

[rocky canyon]

you'd just add them into ur vector u use..

u can always break up ur vectors and add them together before u send them to rb.velocity

normalMovementVector + outsideForcesVector; and then just lerp the normalMovementVector part

instaed of the entire rb.vel

        finalVector =
            (groundVector * finalSpeed) +
            (airVector * characterSettings.airSpeed) +
            (Vector3.up * gravitySim);

        characterController.Move(finalVector * Time.deltaTime);```

i'll only lerp my ground and air vectors

no reason to lerp the gravitySim

[quasi dawn]

Yeah just I've heard that setting the rigidbody's velocity outright make adding stuff like moving platforms and strong winds significantly harder than by just using forces

[rocky canyon]

u just gotta keep up w/ what ur doing 🤪

but yea.. it does make it a bit more involved.. when ur adjusting ur velocity directly

a player controller is the most important part of ur game (most times)
u wanna make sure u have a solid understanding of it anyway

but by breaking up ur forces and stuff into different variables instead of just bunching them all into one.. u can help mitigate that a bit..

say something goes wrong w/ my groundVector i'll have alot easier of a time debugging it.. b/c all the other things wouldn't be involved at all

[undone depot]

can someone check out why the AttackDouble coroutine doesnt work?
all the things which affect it are kind of all over the script so i just pasted the whole thing

[ripe shard]

!code

[eternal falcon]

Posting code

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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.

[undone depot]

okay, https://paste.ofcode.org/Kg6CXWUkRL9L5ZYP67YJ2q
does that work

[ashen gulch]

How can I get the name of a button i pressed? I want this for something like 50 buttons, so i need something efficient.

[wintry quarry]

a ui button?

what do you mean?

[ashen gulch]

Yes UI button

[wintry quarry]

WHy do you want the name

dealing with object names is usually not efficient

What do you actually want to do?

Is it for a hotbar system for example?

[ashen gulch]

It is for a quick project, i need it to make a pair between a button and a 3d object. (when i press the button the 3d part changes)

[wintry quarry]

You can directly provide a reference to the object as a parameter to the function in the button inspector when you assign a listener function

[ashen gulch]

wouldnt that mean i have to go through each of my 50-ish buttons individually?

[wintry quarry]

Wouldn't the thing you're asking about mean you would need to individually write code for 50ish different button names?

[ashen gulch]

I mean, I already had a list of stuff I wanted to model, so when I made the buttons/3d models i made sure for the names to match.

So if I could do the match name-wise I could do it with a single function, my guess

[wintry quarry]

ideally the buttons would all have been prefab instances calling a listener on themselves that just grabs their own .name

barring that - you can write a loop that adds a runtime listener to each one that takes the button object's name and passes it into some function

[ashen gulch]

I also found this EventSystem.current.currentSelectedGameObject.name. It returns the name of the button (CURRENTLY PRESSED*) as it is written in the hierarchy, so I think I can use this.

[wintry quarry]

No it returns the name of the currently selected GameObject in the event system. Which... I mean I guess it would be the button you clicked on usually... kinda hacky

The other thing to do would be to implement IPointerClickHandler on your button

or add an event trigger to it with the PointerClick event

That would give you access to https://docs.unity3d.com/2018.3/Documentation/ScriptReference/EventSystems.PointerEventData.html

[ashen gulch]

Ill take a look, thanks for the guidance

[wintry quarry]

https://docs.unity3d.com/Packages/com.unity.ugui@3.0/api/UnityEngine.EventSystems.PointerEventData.html actually (newer docs)

Which then gives you https://docs.unity3d.com/Packages/com.unity.ugui@3.0/api/UnityEngine.EventSystems.PointerEventData.html#UnityEngine_EventSystems_PointerEventData_pointerClick

[ashen gulch]

(oh boy)

[nocturne kayak]

Hey, i have a... Jittery raycast point??

No clue why, but this is what's happening:

https://hastebin.com/share/jolebiwowu.csharp

The small cube has it's position set to spawnCast_Hit

The big one's using the same code i'm using for drawing those rays

Still, i have no clue why it's so. damn. jittery

[teal viper]

What exactly is jittery? I can't spot an issue in the video.

[nocturne kayak]

The smaller wirecube should be at the same point at the bigger one

but it's just jumping around

[teal viper]

What is it even? How is it related to the raycast?

Ah, ok. So it's repositioned to the hit point?

[wispy coral]

how do i make it so that after an action i have to wait a certain amount of time to do that action again?

[teal viper]

I'd add a check whether the raycast hit anything before drawing the gizmos.

[steep rose]

like a cooldown?

[wispy coral]

yeah just like that, i was thinking making the action itself a method and then using invoke with a key press with a delay

is that correct?

[steep rose]

you could use a coroutine, time.time timer or invoking a function

if you already have a function you made, invoking it may suffice

else you could use a coroutine or time.time timer

[wispy coral]

i havent learned what coroutines are at the moment so ill try the other two and see how it goes

thanks again

[tender wren]

If I move a game component's position outside of the update function without lerp it is jarring, but I cannot get Lerp to work outside the update function. Is there a work around function.

Example:

[teal viper]

What lerp?

And where is "outside of the update"??

[nocturne kayak]

I am doing that

canSpawnObjectHereRay is the bool "If this ray hit something"

spawnCast_Hit is the out from that ray

i'm only ever drawing the cube if it's hitting something

[teal viper]

I don't see you checking it before //Shakey Cube

[nocturne kayak]

oh, yeah, it's acter the other one, hold on

[tender wren]

Sorry Vector3.Lerp for transform.position.

Currently:

• on update check for button down.
• on button down call function that takes a list of game objects and adjusted their transform positons.

[teal viper]

Continue

[nocturne kayak]

just did that, and it's still inconsistent as shit

[tender wren]

Example of the Lerp in terms of the camera:

void Update()
    {
        transform.position = Vector3.Lerp(transform.position, new Vector3(player.transform.position.x, transform.position.y, transform.position.z), speed * Time.deltaTime);
    }

This creates a smooth movement from a to b, but it takes place in the update().

If I do
:

void Update()
    {
        CameraFunction(camera.transform);
    }

....

public void CameraFunction(Transform t)
{
  transform.position = Vector3.Lerp(transform.position, new Vector3(player.transform.position.x, transform.position.y, transform.position.z), speed * Time.deltaTime);
}

It does not update smoothly, instead it only moves one frame worth of the distance, before attempting again from where it was.

[teal viper]

Draw a debug ray following the box cast right after it.

[tender wren]

This is not actual code, but an example

[teal viper]

1. This is not a correct way to lerp(the third param). Check the docs.
2. Extracting the same code into a method wouldn't change anything about it's behavior. Double check that you didn't miss anything when extracting it. Seeing the actual code might be helpful.

[tender wren]

I deleted the lerp attempt, but I can show you the code i'm using to move all the game objects.

Warning its bad:

    public void AdjustTerrainVerticalityDown(int tSpeed, GameObject cliff)
    {
        cliff.transform.position = new Vector3(
            cliff.transform.position.x,
            cliff.transform.position.y - .4f,
            cliff.transform.position.z
        );

        foreach(GroundPiece gP in currentTerrain){
            gP.groundPiece.transform.position = new Vector3(
            gP.groundPiece.transform.position.x,
            gP.groundPiece.transform.position.y - .4f,
            gP.groundPiece.transform.position.z);
        }
    }

So in place the current pos = pos. I was doing pos = new vec3.lerp(current,new,rate);

Let me rewrite it and attempt again

[teal viper]

I'm not sure I understand the purpose of this code. Are you implementing a floating origin or something?

[tender wren]

In the gif posted with the question, you can see the layers of the world adjust on y axis.

That is what this code is doing. I want it to adjust, but I want it to be smooth and not instant.

This adjusts all the elements in the current terrain down, another function moves them up.

[teal viper]

Multiply whatever changes you apply on frame basis by delta time. That would smoothen it up.

[tender wren]

Let me attempt now.

[tender wren]

It did not work as expected, Since the function is only called once, when the button is pressed down, does it only modify 1 frames worth of movement?

[teal viper]

Indeed. You'd need to call it from update or a coroutine for as long as you want it to move smoothly over time.

[tender wren]

So I only want it to adjust once, when the button is pressed down. Would a coroutine be able to accomplish that? I have not looked into that yet, but it would be my next stop.

A simple example would be I have one game object. I press button it smoothly goes down and stops untilk I let go and press again.

[teal viper]

Both a coroutine and some logic with a flag/bool check in update would work.

And while we're at that, I'd suggest you go over the beginner pathways on unity !learn before working on your own project.

[eternal falcon]

:teacher: Unity Learn ↗

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

[nocturne kayak]

i found the problem, i was being a dumdum and using a boxcast isntead of a simple raycast

[stuck shard]

Okay, I've started working with Unity Built-In UI Builder and UI ToolKit got all my ui set up for my intended issue but if I re-scale the game to anything but 1920 x 1080 the UI just stays exactly to what I've set it as. is there a way to make it automatically rescale?

Tried to look it up on youtube. didn't find anything on this rescaling issues. although a lot point to Position being Relative and Match the Game view that literally did nothing. should I apply a script to my UI Document that allows it to use a Canvas Scaler. I don't really have a viesable approach or anything to go off.

It's a pain cause I think it's my last piece to my puzzle on UI Builder

[shy anchor]

Hey everyone!

I am trying to make a simple collision script where I update the speed variable when the boxcollider is triggered. Here, PlayerController is a script of my player gameobject. I understand this is wrong, would someone know how I should thinkin
g of this?

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

public class PowerUps : MonoBehaviour
{


    public GameObject powerUp_Prefab;
    public GameObject player;

    
    void Update()
    {

        BoxCollider2D boxCollider2D = powerUp_Prefab.GetComponent<BoxCollider2D>();

        playerController = player.GetComponent<PlayerController>();
        if (boxCollider2D.isTrigger)
        {
            playerController.speed =  playerController.speed + 0.5f;
        }

    }
}

Also please excuse my syntax errors!

[wintry quarry]

!code

[eternal falcon]

Posting code

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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.

[rocky wyvern]

Look into ontriggerenter2d

[undone depot]

how would i differentiate between materials for adaptive hit noises or footsteps

[shy anchor]

thank you! I saw to use that as a solution, I am curious as to why it would not work the way I have it. My thinking is if the script is a component of my game object why can't I use get component and update the variable that way

[wintry quarry]

The code you have makes no sense. It's doing this:

• Each frame, check if the box collider on the prefab is a trigger.
• if the box collider on the prefab is a trigger, increase the player's speed

it is doing absolutely nothing to detect collisions between the box and the player

As for the use of GetComponent, that part looks correct assuming you have actually referenced the correct objects in the inspector

However - it's completely unnecessary

You could have just referenced the components directly in the inspector

saving yourself the GetComponent call

e.g.

    public Collider powerUpCollider;
    public PlayerController player;```

You might also be a little confused about what a prefab is.

A prefab is a thing in your project folder. Prefabs do not exist in scenes.

The things in the scene that are made from the prefab are instances of the prefab, not the prefab itself.

[rocky wyvern]

Tag is probably easiest

[shy anchor]

@wintry quarry That makes sense! Thank you for the explanation 🙂

[undone depot]

how would i reference those in the script

[wintry quarry]

Put a script on the surfaces with an enum for surface type, or even just have that script directly reference the audio clips.

[rocky wyvern]

Tbh I think it depends somewhat on the layout of your ground colliders

I think the most elegant way would be to ontriggerenter with a collider that collides with ground layer and cache the ground material you want

But if you have overlapping colliders and whatnot it might be better to just raycast down from ur feet

[undone depot]

what about for hit sounds? is there a stand in thing i could put for that comment

im not above just repeating the if statement for 6 materials

[undone depot]

i actually havent made those yet, im on the gridded test area stage
ill keep that in mind

[rocky wyvern]

Use a dict or something you don’t want to have to write a new if statement every time you add a sound

[astral falcon]

And try to avoid instantiating and destroying a lot, if you gonna reuse the effects anyway. You can look into objectpooling for that case. Just another tip

[tough cosmos]

Hello community 🙂 I have an issue with my animation on my 2D character.... it doesnt stop... even with no input from the keyboard... can anyone help me? I'm trying to solve this since 3 days....

[burnt vapor]

You can and will be helped if you share the context of the issue. !Code specifically and an indication where people might have to look.

[eternal falcon]

Posting code

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To format as C#, add cs to the first line:
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[tough cosmos]

This is my PlayerController Script:

test

this is my script and i did a clean up because i had in every line a Debug.Log

i dont know why my animation is still ongoing even if i dont move

or is it better to post in the networking channel because it's multiplayer?

[astral falcon]

Either or, you should put some logs in there to know, who is calling your stuff. guessing, that your server might be updating your player with its last state it received

[tough cosmos]

when i move it works and when i dont move in the console it says:

No movement detected, deltaPosition is zero.
UnityEngine.Debug:Log (object)
PlayerController:Update () (at Assets/Scripts/Player/PlayerController.cs:62)

so the scripts detects that there is no movement, but why does my player still has the animation going?^^

[astral falcon]

please post your script on a script page, so we actually got line numbers and stuff

[tough cosmos]

how? i posted my script as a message, because it's too big

[astral falcon]

!code as already mentioned 🙂

[eternal falcon]

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[tough cosmos]

https://paste.ofcode.org/ZgL2PdT2nsMH6ehLevTybm

[astral falcon]

As far as I can see, you never reset to false

            animator.SetBool("isRunning", true);

[tough cosmos]

ok? so i expand the if statement with an else and set the boolean to false?

[astral falcon]

Thats something for you to test and figure out. But the reason your animation is going is, that this is set to true and never reset

[tough cosmos]

nice now it works on the host and on the client! but one more issue^^ when i watch on the host screen the client animation dont stop but on the client screen it stops

any idea?^^

[burnt vapor]

The host never calls code that stops the running then

Same idea there

[tough cosmos]

hmm... yeah but i dont know where to but the code... 😦 sorry

in the update i put:

private void Update()
    {
        if (!IsOwner) return;

        // Eingaben des Spielers abfragen
        float moveHorizontal = Input.GetAxisRaw("Horizontal");
        float moveVertical = Input.GetAxisRaw("Vertical");

        // Bewegung basierend auf Input berechnen
        Vector2 deltaPosition = new Vector2(moveHorizontal, moveVertical) * moveSpeed;

        if (deltaPosition != Vector2.zero)
        {
            // Sende Bewegungsanfrage an den Server
            SendMoveRequest(deltaPosition);

            // Optional: Direkte Anwendung beim Eigentümer zur Reduzierung wahrgenommener Latenz
            if (isOwnerPrioritized)
            {
                RespondToMoveRequest(deltaPosition);
            }
        }
        else
        {
            Debug.Log("No movement detected, deltaPosition is zero.");
            animator.SetBool("isRunning", false);
        }
    }

now it works on the host

but i think i have to set the bool in the ServerRpc

right?

[burnt vapor]

No clue, sorry

[tough cosmos]

ok, no problem thank you 🙂

[fickle wagon]

Hi friends, I want to change the sprite position and scale as we do in the editor using a corner point and dragging it but in runtime with points showing in-game view

[tough cosmos]

i got it! created a ServerRpc and a ClientRpc that sets the boolean to false gg wp

[astral falcon]

you could also rely on your rb velocity to make him run or not dynamically

[lilac turtle]

can you detect the exact point where raycast hit a certain object?

[eager spindle]

you have a RaycastHit or RaycastHit2D

so it would use hit.point

[lilac turtle]

ty

[eager spindle]

https://docs.unity3d.com/6000.0/Documentation/ScriptReference/RaycastHit-point.html

docs are very fun

[lilac turtle]

very amazing indeed