💻┃code-beginner

[cosmic dagger]

since they do not know what a lamba expression is, you may have to explain _ (in your example) as that will cause some confusion . . .

[willow scroll]

I think it has already been explained before, I'm just trying to give them some examples

[cosmic dagger]

oh, i missed that part then . . .

[pure saddle]

can i disable my game collision to object by using

public extern void set_isKinematic(bool value);

[void thicket]

What

[willow scroll]

I don't think there is a built-in method for this. You can store the previous position of the GameObject and calculate the difference between the current one, which, if isn't zero, can be used to calculate the force applied

[cosmic dagger]

you can obtain the speed of the GameObject by recording its previous and current position . . .

[void thicket]

Where did you get this random piece of code

[karmic kindle]

Spot on!! Thank you very much!

[cosmic dagger]

damn, too slow . . .

[meager sentinel]

If you mean something about the rigidbody there was a function if for example you have a grab system and you punch it into the ground to detect how many force was being used

[pure saddle]

from class RigidBody

i am noob

[eternal needle]

What are you trying to do? There isnt really a way to detect individual forces applied to the rigidbody. Youd need to make your own script which takes in these forces applied maybe.

Unless your just talking about collision forces, which is provided through the unity messages

[cosmic dagger]

you can create a method that will set the rigidbody to kinematic . . .

[void thicket]

You can just rigidbody.isKinematic = true or so

[pure saddle]

and will destroy collision?

[karmic kindle]

The trouble with that was it would move forward in the "scene" regardless of how much I moved the camera angle, where as I want "walk forward" to relate to how the camera is facing - but I don't want the camera to move on Y unless the character is jumping etc... What Bawsi said was the problem, I forgot to add Space.World, now the line ignores the Y change

[willow scroll]

No

It makes the rigidbody kinematic

Certain collisions still happen

[karmic kindle]

Thanks for clarifying this

[pure saddle]

ok ty bro

[pure saddle]

ty bro

[meager sentinel]

If you really meant what i said earlier, (since you never answered) this may help https://docs.unity3d.com/ScriptReference/Collision.html (the part of relative velocity)

[willow scroll]

Basically, making the Rigidbody kinematic still calls OnTriggerEnter, assuming the method is in the class, which Rigidbody we're talking about, in certain circumstances. Of course, it doesn't call OnCollisionEnter

[pure saddle]

how can i get the

worldtomatrix

[willow scroll]

What does it mean?

[pure saddle]

in a unity game only using fields

[rocky canyon]

buzzwords

[pure saddle]

you know worldtoscreenpoint?

[meager sentinel]

frick my IDE in visual studio broke again, it doesn't show errors neither suggestions

what could i do?

[willow scroll]

And why have you removed your previous message just to write the same thing using 3 different ones?

[willow scroll]

Yes, I would assume

[pure saddle]

i tought u woudnt respond

[rich adder]

studio or vscode ?

[meager sentinel]

Studio

[willow scroll]

Have I exceeded your expectations this time then?

[rich adder]

you tried regen project files ?

[pure saddle]

worldtoscreenpoint = transforming a world position into the camera 2d position

[meager sentinel]

i did

[rich adder]

can you show the solution explorer

[eternal needle]

Maybe go through the ide configuration again. Did it break for every script, like you close VS, open a script through unity and it doesnt have highlighting?

[willow scroll]

Yes, it transforms the world position to the screen one, which is in pixels

[meager sentinel]

wdym with Solution Explorer?

[meager sentinel]

Yeah

[pure saddle]

yep there is another way u could do this using 4x4 Matrix

[rich adder]

inside Visual Studio, the solution explorer tab/window

[pure saddle]

my question is how can i get the matrix

[void thicket]

Is it specifically world-to-screen matrix are you looking for?

Generally for transforms you'd use https://docs.unity3d.com/ScriptReference/Transform-worldToLocalMatrix.html

[pure saddle]

i want to transform a world position into a screen pos (Vector3 to be specifical) using worldtolocalmatrix

[meager sentinel]

nvm fixed, seems that i need to reload project files more than one time sometimes

ty tho

[pure saddle]

is there is a way i can get this by fields?

[willow scroll]

That's what this method does

[pure saddle]

yep but i can get this through fields?

[willow scroll]

What does it mean?

[pure saddle]

 [SerializeField]

[summer stump]

That is an attribute to serialize a field

That does not explain what you are asking though

What is "this" and what are you trying to "get"?

You can of course make a Transform typed field if you want

Transform myTransform

[pure saddle]

no how can i get in a random game

[summer stump]

That is even more vague.

[pure saddle]

like is there any universal method?

[willow scroll]

To transform the world to the screen point? Camera.WorldToScreenPoint()

[pure saddle]

how to find a game gameplaymodule class?

[void thicket]

What

Are you trying to do modding or something?

[pure saddle]

nope bro

[summer stump]

Gameplaymodule !?

[pure saddle]

i am trying to learn unity

[formal venture]

okay, i know fully get it, thank u very much :>

[pure saddle]

maybe i am to noob to ask correctly

[eternal needle]

You should ask what you're actually trying to do gameplay wise. Not code wise

[willow scroll]

So does it work now?

[summer stump]

Are you asking how to reference a component?
https://unity.huh.how/references

[pure saddle]

yep

ty

[willow scroll]

Hold on. So, this whole thing with matrix was to reference a component?

[pure saddle]

no i had other question b ru h

but i am too nob

what is the property bounds in class Collider do?

[willow scroll]

Stores the bounds of the Collider

[pure saddle]

nice ty

[void thicket]

So confusing

[willow scroll]

Well the name literally tells you this

[pure saddle]

Raycast in class Physics is used for what bro?

[willow scroll]

To create the raycasts

[acoustic arch]

can my scroll view be able to switch between different content? like have 2 different content objects and whichever is enabled is the one that scrolls

it won't let me scroll the 2nd content when active

under the Viewport

[pure saddle]

what are raycast used for

[willow scroll]

To detect the collisions

[summer stump]

Querying an area for colliders

[pure saddle]

it can detect when a player is attacked?

[willow scroll]

Yes

[pure saddle]

ty

[willow scroll]

Is the attacker has a collider

[summer stump]

I mean, if your attack relies on a raycast. Otherwise no

[willow scroll]

Also, why would you even detect an attack on the player if you have the data of the Enemies

[summer stump]

It won't tell you that the enemy wants to attack you. Just that an enemy is there

[pure saddle]

if i destroy my raycast i destroy my game physics?

[willow scroll]

Yeah, exactly. You'll have to reinstall Unity after that

[summer stump]

You don't destroy raycasts.
It is merely a query. It asks if something is there. Either yes or no

[void thicket]

If I destroy my question I destroy whole discord? 🤔

[pure saddle]

struct Ray {
 Vector3 origin;
 Vector3 direction;
};

is this good?

[willow scroll]

No, this is mid

[summer stump]

That is a ray
Not a raycast. You can use the ray for the raycast

[pure saddle]

how can i make it better

[pure saddle]

yes bro i am tying to learn the insides before making code for my game

[willow scroll]

Don't create a useless struct?

[summer stump]

You should do !learn

[eternal falcon]

:teacher: Unity Learn ↗

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

[pure saddle]

oh so should i make parameters without the struct

[karmic kindle]

Yep - transform.Translate(new Vector3(Camera.main.transform.forward.x, 0f, Camera.main.transform.forward.z) * panSpeed * Time.deltaTime, Space.World);

[willow scroll]

What parameters?

[summer stump]

Did you looj at the docs?

You can use the ray, or plug in values directly

[pure saddle]

oh right

[pure saddle]

i am bad at reading doc

[willow scroll]

Replies too

[rocky canyon]

Ray ray;
ray = new Ray(cam.transform.position,cam.transform.forward);```

ray already made for ya, just fill it in and use it

[pure saddle]

they are both vector3?

[rocky canyon]

yes

[pure saddle]

oh ok

[rocky canyon]

ones an origin and ones a direction

just like u had earlier

[willow scroll]

Yeah, you can manage this by accessing the content variable via script

I highly doubt there're any components for this

Additionaly, you usually wouldn't need this. Simply let the content be the same, and instead change the items inside of it

This way, the content just shows the enabled items, which prevents you from changing the view's contents

[pure saddle]

what is freezerotation in class RigidBody used for?

[willow scroll]

To freeze the rotation

It is literally self-explainable by its name

The rotation gets freezed and is not changed

[rocky canyon]

freezes the local rotation of the rb

[pure saddle]

so you cant rotate ur camera?

[rocky canyon]

world rotation if its a root gameobject

[void thicket]

Are you looking through the class and just becoming curious about every single property?

[polar acorn]

Why does your camera have a rigid body

[pure saddle]

it doesnt my bad

[willow scroll]

You cannot change the specific rotation axis of the certain Rigidbody. As previously mentioned, you should consider reading, first, the variables' names, second, docs for the desired variable

[summer stump]

Did you look at the docs. You are required to do some research before asking questions here
#📖┃code-of-conduct

Also, i really do suggest just going through !learn

[eternal falcon]

:teacher: Unity Learn ↗

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

[pure saddle]

sorry i will go read

[eager wolf]

How do I get this to work?

[rich adder]

I'm still confused what you are trying to do with item

[summer stump]

Make it an actual statement

[languid spire]

chestloot is a List so use an indexer

[summer stump]

You aren't actually DOING anything there

[polar acorn]

What are you actually intending to do with item

[turbid ruin]

Hey im new here and im wondering where can i request or get help to specific problems?

[wintry quarry]

learn to use lists

[wintry quarry]

#🔎┃find-a-channel

[polar acorn]

In whichever channel is close enough to your problem

[ionic plank]

Hi ! I don't understand my error :

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Graphs.Edge.WakeUp () (at <0e6f69b30d82405f98d87804eacb548a>:0)
UnityEditor.Graphs.Graph.DoWakeUpEdges (System.Collections.Generic.List1[T] inEdges, System.Collections.Generic.List1[T] ok, System.Collections.Generic.List`1[T] error, System.Boolean inEdgesUsedToBeValid) (at <0e6f69b30d82405f98d87804eacb548a>:0)
UnityEditor.Graphs.Graph.WakeUpEdges (System.Boolean clearSlotEdges) (at <0e6f69b30d82405f98d87804eacb548a>:0)
UnityEditor.Graphs.Graph.WakeUp (System.Boolean force) (at <0e6f69b30d82405f98d87804eacb548a>:0)
UnityEditor.Graphs.Graph.WakeUp () (at <0e6f69b30d82405f98d87804eacb548a>:0)
UnityEditor.Graphs.Graph.OnEnable () (at <0e6f69b30d82405f98d87804eacb548a>:0)

Can you help me with this ?

[polar acorn]

Unity internal error, won't affect any builds, you can ignore it

[eternal needle]

If you're getting this error often, reopen unity and or reset layouts

[radiant frigate]

how can i rotate the transform.up 90º to the left or right?

[wintry quarry]

transform.Rotate(0, 0, 90);``` for example

or:

transform.up = Quaternion.Euler(0, 0, 90) * transform.up;```

"left or right" are not really good ways to describe rotation though

A better way would be "clockwise around the z axis" or something

[radiant frigate]

i´ll take this one since im scared of quaternions

[radiant frigate]

true

[radiant frigate]

this one would be clockwise right?

[wintry quarry]

clockwise around the object's local z axis

[radiant frigate]

okay

ty!

[stuck palm]

Hey, just switched around the responsibility so its the damage dealer making the enemy take damage instead of the enemy damaging itself from the damage dealers collider. The issue still appears to persist, however.

its triggerentering multiple hitboxes and damaging the victim for every hitbox it gets hit by

[eternal needle]

Did you add any other logic? A hashset storing the rigidbody for example should suffice. You check the attached rb, if it's already in the hashset then dont do damage again

[stuck palm]

whats a hashset?

[stuck palm]

and no i just switched around the fields basically lmao

[eternal needle]

Google will explain it more clearly than I can, it's just a collection of objects at the end of the day. You can also use a list too

[stuck palm]

but what if i want to damage the same guy twice in seperate damage instances?

[swift crag]

that won't do anything at all!

[swift crag]

then you need to track two separate instances of damage

[stuck palm]

i switched the responsibility is what i meant to say

[swift crag]

stop and think about what's going on here -- if you don't remember what has already happened during this attack, then you will always get multiple hits

because how are you supposed to know if you've already hit the enemy or not?

[eternal needle]

2 different instances would store different collections of stuff they damaged. If you are pooling objects, then clear their list or hashset when you want a 2nd damage tick

[stuck palm]

im not pooling objects, this is for a fighting game

[turbid ruin]

Could someone help me with a Unity build problem?

[stuck palm]

i think i've got an idea

[swift crag]

hopefully that idea is "track which hurtboxes you've already hit per-attack" :p

[stuck palm]

i dont see how this will fix it, though. if i it the arm and the head with one hit, it should only damage the player once. if the attacker is moving and more colliders are hit while the attack is active, then wouldnt that break your logic or am i misreading it?

[swift crag]

Each attack should track which hurtboxes it has hit.

It should only cause damage if it:

• has never hit a hurtbox yet
• hits a hurtbox that's better than the previous hurtboxes (if you have that kind of thing, at least)

[eternal needle]

Well the idea applies to stuff like damaging areas too where you want to deal damage to every single thing inside some area over time.

[swift crag]

I don't see how moving and hitting more colliders would cause a problem here.

[stuck palm]

hold on i have an idea, let me cook real quick

[swift crag]

Each attack instance (e.g. each swing in a combo) tracks the hurtboxes it has seen

that's it

[stuck palm]

okay i think i got it

[swift crag]

(and pooling the hash sets would be reasonable!)

[stuck palm]

what is pooling again sorry?

[swift crag]

in fact, UnityEngine.Pool.HashSetPool<Hurtbox>.Get() is right there (:

[swift crag]

instead of allocating a new object and then throwing it out (so that the garbage collector has to eat it), you re-use the same object over and over

var hurtboxSet = UnityEngine.Pool.HashSetPool<Hurtbox>.Get();

// sometime later...

UnityEngine.Pool.HashSetPool<Hurtbox>.Release(hurtboxSet);

[eternal needle]

If the objects themselves are pooled, I think this is pretty much the same since the instance at the same time would make a new hashset

[swift crag]

Oh yeah, that's also reasonable

I do that in my AI planner system

[stuck palm]

i see. i think the main issue is that im not spawning hitboxes in, I'm animating a box collider that is attached to the player

[swift crag]

it pools the PlannerState objects, which contain a big pile of hurtboxes

[swift crag]

this is irrelevant

we're talking about individual attacks here

i don't think we're on the same page here...

[eternal needle]

I think you just need to start implementing the code where an attack tracks what it hit, and then itll become clear what you actually need to do

[stuck palm]

yeah okay

will try that

how can i delete a hashset?

make it null or?

[stuck palm]

or rather remove whats in it

[eternal needle]

There is a clear method

Same with lists

[stuck palm]

okay, thank you

[swift crag]

to clarify here...

if you allocate a new hash set every time you attack, you don't have to clear it at all

you throw out the attack object and it gets garbage collected at some point

you never see the hash set again

you could set the variable holding the hashset to null, but that would change nothing

if you pool your attack objects, then you must clean up the object before you re-use it

part of this would be clearing the hash set with the Clear method

Setting the variable to null would defeat half of the point of pooling, since you'd have to then allocate a brand-new hash set

[swift crag]

Clearing a list/hashset/dictionary does not make it give up the memory it's using. When you fill the collection back up again, it won't have to ask for more memory

That's the big win that pooling gives you

My AI planning system uses and modifies tons of hash sets, but it generates very little garbage

everything is getting re-used

[stuck palm]

can i ask what you define as an attack in this case?

i just wanna make sure im getting everything crystal clear

[radiant frigate]

!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.

[swift crag]

If your character has a three-jab move, that's three separate attacks

Each jab can cause damage.

and each jab does not care if the previous jab happened to hit something

[radiant frigate]

https://gdl.space/ronobahuyu.cs, https://gdl.space/yidajikufu.cs does someone know why when i shoot my bullets go up even if i point left?

[swift crag]

An attack should probably correspond to a single animation being played.

but you could totally have a single big swing that can hit over and over

I haven't played Smash in a while, but doesn't Roy's Up+B hit enemies many times?

That would be many separate attacks going off very quickly

each one with its own hitboxes

[stuck palm]

im pretty sure smash like spawns hitboxes in world space

from what i've read in the wiki

[swift crag]

sure

each attack creates a set of hitboxes, and if those overlap an enemy's hurtbox, the attack connects

[turbid ruin]

Hello, I'm having a problem, today i made a build of my game but then it suddenly had a like dark gray screen, i'm not able to interact with the game but i hear the background music and only that. Sometimes it flashes up and i can see the game for half a second before it disapears once more. I looked around the Unity forums but non of their solutions seemed to fix mine. It has only being doing this since today. Yesterday everything was working perfectly fine.
I'm on Editor version 2020.3.29f1 if it helps
Please @ me if you found a solution or want to help!
Thanks

[stuck palm]

yeah, thats how my thing worked too. i think i sorted out the issue now though

[stuck palm]

i did what you guys said, every time the hitbox is active, if it hits a collider it adds the root player's character script to this hashset. if it hits something and the same root object is in that hashset, it ignores it. when the hitbox collider is disabled, it clears the hashest.

idk if this is the right way

the main issue is avoided, that being repeat damage instances

but i feel like projectiles and stuff are going to be a whole other beast

[swift crag]

that's fine as long as you don't want to have different kinds of hurtboxes

[stuck palm]

different kinds in what sense? if you mean like vulnerable hurtboxes or whatever i dont plan on doing that

wouldnt make sense for my game i think

if (!hitCharacters.Add(_hitCharacter))
            {
                print("Already hit this player!");
                return;
            }
``` this is the base of the logic

[swift crag]

you might want to have a hurtbox on a character's limb that isn't as important as the center of their body

[stuck palm]

ah yeah, no i dont have that planned to do

if (!hitCollider.enabled)
        {
            hitCharacters.Clear();
        }

this runs in update

[buoyant knot]

i feel like there is a smarter way to do that

[stuck palm]

I am open to suggestions

[ember gate]

how can I not get bulldozed by the enemies if Im staying still and how can I not get slowed or stuck in them when I got the min amount of speed to be able to run them over

[polar acorn]

!code

[buoyant knot]

the code that disables the collider should directly communicate with the script to tell it to clear

[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.

[buoyant knot]

or an event that gets invoked

[stuck palm]

the animator disables the collider.

i could use an animator event but

that would mean going through like 120 differrent moves and switching them all out

and i dont wanna do that so

[buoyant knot]

why does the animator affect your collider

[stuck palm]

the animator animates the shape of the hitbox collider

[buoyant knot]

is that just graphics?

oh shit, you’re in 3D

[stuck palm]

yeah

[buoyant knot]

uh, idk then tbh. but i can say there should be a cleaner solution

[ember gate]

if anyone got knowledge on this and could help me please

[buoyant knot]

i have no idea what you are doing

i just see a bunch of boxes and circles

[ember gate]

ight so
basically a car drifting, when it has a certain amount of speed it should run through enemies else it would get damaged leading to death(not introduced yet) and when the car stays still it can get moved around by the enemies, instead I want the car to remain still and the enemies to just basically circle it round
@buoyant knot

[willow scroll]

Disable the collision between the car and the enemies according to the certain speed

Using Physics.IgnoreCollision

[ember gate]

ight

thanks

[willow scroll]

Ignoring the collision when the player is not moving can be valid if you ensure the enemies don't get thru it

[ember gate]

what do I add inside the parentheses

[willow scroll]

So you ignore it when

• The player is not moving
• The player's speed is high enough
  And don't ignore when
• The player is moving at a normal speed

[willow scroll]

Which ones?

[ember gate]

this one

[buoyant knot]

i would not do this

i would either change the layer or settings on the collider

[willow scroll]

Have you opened the docs?

[buoyant knot]

or enable a separate trigger collider with the given settings

[static dune]

Can you help me with an error in a code that I don't know what it is?

[willow scroll]

Why?

[buoyant knot]

eg, have a trigger collider for the hitbox, and a trigger collider for your hurtbox. Then in FixedUpdate, based on speed, enable one and disable the other

[willow scroll]

Why would you make the enemies, in their case, get thru each other?

[buoyant knot]

https://docs.unity3d.com/ScriptReference/Physics.IgnoreCollision.html
Ignore collision ignores collisions between a specific pair of colliders

[willow scroll]

Yeah, that's why use IgnoreLayerCollision

Ignore the collision between the Enemy and Player layers

[buoyant knot]

you didn’t use ignore layer collision

[willow scroll]

I forgot to mention it

[buoyant knot]

you said IgnoreCollision

[willow scroll]

Yes, I was about to say it when writing this message

@ember gate use layers

[buoyant knot]

and you don’t need IgnoreLayerCollision either. that is a bad idea

[ember gate]

I was reading both opinions

I was creating some layers rn

[willow scroll]

This is much more efficient than ignoring the collision between the player and every enemy

[buoyant knot]

IgnoreLayerCollision changes the rules for how ALL colliders interact with each other

what he/she wants is to change the rules for that specific player object

which is simplest by either changing it to a different layer

OR have 2 hitboxes of different layers and settings, and enable only one. I would only do that if the settings are wildly different and specific

[willow scroll]

If, for some reason, there is no wish to use IgnoreLayerCollision

[buoyant knot]

you don’t need to use that

just change the layer of the one object you want to change

[ember gate]

I got confused so my car is on the Player layer and the enemies are on the Enemy layer

do I change the car layer?

[buoyant knot]

yes

like make a layer that is SolidIgnoreEnemy, and a layer that is Player

or just change the settings of the car’s collider

[willow scroll]

I don't see why you would have a 2nd layer if you can simply ignore the collision between the existing ones

[ember gate]

does the order matter?

for the layers or na

[buoyant knot]

no

does not matter

in this case, I might use Collider2D.forcerecievelayers

[willow scroll]

You have to provide the error to receive help

[buoyant knot]

https://docs.unity3d.com/ScriptReference/Collider2D-forceReceiveLayers.html

this is a layermask of layer overrides. Whatever your layer is, you will additionally receive forces from whatever is here

and reverse for forceSendLayers

[rocky canyon]

@static dune dont ask to ask, just ask

[compact nymph]

how come it keeps giving me errors for line 27 whenever the ray isn't over the object

[buoyant knot]

you can also have a separate trigger hitbox to allow your player to destroy or be damaged by enemies

[static dune]

The code does not store/save the scene, what is wrong

[willow scroll]

So you're saying that IgnoreLayerCollision doesn't simply change a single boolean for the collision between two layers? Instead, you would like to simply change the layers.

[void thicket]

What error?

[buoyant knot]

IgnoreLayerCollision changes the rules for the whole goddamn world

which is not what we want

[compact nymph]

object reference not set to an object

[rocky canyon]

b/c there isn't a hit or a collider to check the tag on..

so when u try to access hit theres nothing there

[willow scroll]

What kind of "goddamn world" are we currently talking about?

[void thicket]

You should check if RaycastHit is valid

[rocky canyon]

[buoyant knot]

we want to change the rules for the one object interacting with everything else

[compact nymph]

how should I do that

[void thicket]

Return value of Raycast

[compact nymph]

just check if hit is not null

[buoyant knot]

so you should change the settings on the collider

[buoyant knot]

either changing its layer or its layer overrides

then any changes solely apply to that one thing

[willow scroll]

So why is IgnoreLayerCollision not valid for that? Does it somehow rewrite the whole physics system or what?

[buoyant knot]

what if he/she later has a second object in the same layer?

you are now changing the rules for it, for no reason

like if you add a second car or whatever

[willow scroll]

Why would they have a 2nd object in the Player layer?

[buoyant knot]

because you have no clue what features they might add a year from now

but by using IgnoreLayerCollision, yoh are changing static variables that apply to everything

[ember gate]

idk why it gives an error

[willow scroll]

So what if they have another layers depending on the collision with the Player layer?

[buoyant knot]

Because it isn’t a static field. It is a field of an object that is a collider2D

so you get a ref for the collider2D of the car, and then say myCar.forceReceiveLayers = whatever

[rocky canyon]

^ u don't call AddForce on a Rigidbody.. you call it on an instance of a Rigidbody.. Rigidbody is the class for all rigidbodies.. same thing here

Collider2D thisCollider;
thisCollider. dadada```

[ember gate]

= the layer I want to swap to right?

[buoyant knot]

layer overrides affect how forces get calculated, or contacts get generated (which affects calling OnCollision/Trigger calls)

[buoyant knot]

it would be a whole layer mask

and that layer mask should have the relevant bit for the layer to receive forces from turned to 1

and 0 for layers where you don’t

[willow scroll]

So basically a method marked static is for general Rigidbodies, and non-static methods are used for the specific ones, which references are being used for its call @ember gate

[buoyant knot]

making a layer mask from layers is a really important part of working with the unity physics system

like if your layer mask says to interact with layers 2, 5, 6. Then in binary that is 000…001100100

i think Unity has methods to do the conversion

https://docs.unity3d.com/ScriptReference/LayerMask.html

important class for working with physics

[buoyant knot]

static methods/fields belong to the definition of the class, and not to any one instance

[rocky canyon]

wheres the OP?

[buoyant knot]

probably writing code

[rocky canyon]

nah i mean the post

[willow scroll]

So what error is thrown?

[rocky canyon]

im confused on what even he's trying to do.. i just stepped in

[buoyant knot]

this

[rocky canyon]

thankyou

[willow scroll]

#💻┃code-beginner message

[buoyant knot]

the goal

[ember gate]

trying to process all the messages while reading the doc and writing code aswell

[rocky canyon]

ahh ok i see

[buoyant knot]

note that layer mask and layers are not the same

[static dune]

The code doesn't store the scene,
When I want to check if the code works, there is no saved one

[buoyant knot]

a layer mask is a bitmask. it is a number where each digit in binary corresponds to a specific layer being “on” in that number

so layer mask 5 means YES to layers 0 and 2, because 5 = 000…00101 in binary

[ember gate]

oh ok I understood I think

[rocky canyon]

i assign layers in an exposed variable for my layermasks..

im really bad at all that bitshifting stuff

[buoyant knot]

in the context of a contactfilter2D, this would be like one number that tells you all the layers you can touch when you raycast

[rocky canyon]

it hurts my brain :d

[buoyant knot]

in the context of forcesendlayers, it’s all the layers to which a collider can send forces

same for forceReceiveLayers

the LayerMask docs tell you what methods that class has

[nova swift]

Does manually dragging components into variables rather using GetComponent optimise the game, and would it actually help with loading times to do that when possible?

[rocky canyon]

any getcomponent u get rid of the better ur performance is

but theres nothing wrong with using them for initialization (1 - time use)

like in Start() or Awake()

u can use getcomponent to cache ur variable.. and then accesss that cached variable..

not the getcomponent call each time

[buoyant knot]

https://openupm.com/packages/net.tnrd.layertagsgenerator/
This is a useful plugin for working with layers. It autogenerates a class with public constants with useful names for each layer. Because unity was too lazy to do something sensical for that.

[swift crag]

very handy!

i'm using it

[buoyant knot]

it makes a class called Layers where you can use Layers.PLAYER to get the layer number of player. And Layers.PLAYER_MASK to automatically get the number corresponding to a layer mask of just the player

[ember gate]

Installed it now aswell

[nova swift]

Yes I understand, was wondering if having like 500 game objects all of which do this in Awake would slow down the initial load time

[swift crag]

and thus you can do Layers.FLORP_MASK | Layers.BLORP_MASK!

[rocky canyon]

[SerializedField] private Rigidbody myRB; --> assign it via inspector

private Rigidbody myRB;
myRB = GetComponent<Rigidbody>();```

[willow scroll]

Does it have something to do with you just getting the ^2 object from the Stack, which, if there are < 2 scenes saved, is null?

[swift crag]

i wonder if that compiles down to a constant. C# isn't nearly as aggressive as C++ can be about such things

[rocky canyon]

500 of em would be noticeable.. but Initialization stuff.. like the beginning of the game.. ususally has a loading screen.. (fading from black)

[buoyant knot]

so you can do LayerMask playerAndEnemy = Layers.PLAYER_MASK | Layers.ENEMY_MASK;
and that is a layer mask that includes player and enemy

[wintry quarry]

Don't ever mix your Florp mask with your Blorp Mask. You'll intransilate the floobmapper.

[rocky canyon]

that can give ur game time to load up correctly..

[ember gate]

what I do not get is idk what should the forceReceiveLayers equal to @buoyant knot

[swift crag]

The future is now, old man

[nova swift]

True, thanks for the help. I guess I should manually drag the variables in when I can for initialisation then

[buoyant knot]

when you don’t want to receive force from enemies, then I would just set the relevant enemy bit to zero, so you still collide with terrain

[wintry quarry]

God I hope some generative AI picks this up

[ember gate]

I did that but it shows me this

[rocky canyon]

yup, the only time u should be worried about using GetComponent is for things that u Instantitate into the game at Runtime.. or references from the scene that a prefab needs.. that can only be asssigned after initiation

everything else can be assigned via the inspector

[buoyant knot]

eg myCar.forceReceiveLayers &= ~ Layers.ENEMY_MASK;

~ is the bitwise NOT, which flips all 1 and 0

[nova swift]

I guess that’s where object pooling comes in clutch

[buoyant knot]

it needs to be the specific collider2D instance

[ember gate]

or wait u meant Collider2D as a general thing instead of it I should put my car

[ember gate]

ye I got it now

[buoyant knot]

yes

[willow scroll]

So why aren't you using it?

[buoyant knot]

Colider2D.forceRecieveLayers is the name of the property (as it is defined), which is not static, and you can only use on instances

[buoyant knot]

so if Layers.ENEMY_MASK has only the enemy bit set to 1, then ~ (that) is all bits are 1 except the enemy layer bit

&= takes each individual bit, and ANDs it. So if every bit on the right hand side is 1, then & makes the result the same as the left hand side. But since the enemy bit is 0, that AND forces just the enemy bit to be 0.

[ember gate]

I don't think this is what you mean

idk im sorry im stupid I haven't coded in unity for a long time

[rich adder]

you need a layermask

0 is not a layermask

[buoyant knot]

you have to explicitly cast it to a LayerMask

because unity is too dumb to figure that out by itself

does your IDE at least acknowledge that property?

it should automatically find the right property in like a dropdown list

[ember gate]

not sure

I created a layermask

[buoyant knot]

what is the error

[rich adder]

which version of unity are you on

[ember gate]

good question

one sec

[rich adder]

i think thats 2022 property

[buoyant knot]

force overrides were added later

[ember gate]

DAMN

[buoyant knot]

yeah. it’s semi recent

[ember gate]

2021.3.19f1

[buoyant knot]

bro wtf

get off that shit

[ember gate]

DAMN XD

[rich adder]

Unity 6 is about to be out lol at very least use lts 2022

[buoyant knot]

layer overrides make life vastly easier

[ember gate]

does the game change a lot if I change the version?

I mean its not much to it anyways

[rich adder]

nothing would change much code wise (would make sure third party tools / assets are compatible)

always make a git commit before doing such drastic change

[ember gate]

its not drastic I got 5 objects on the screen and 5 scripts

[rocky canyon]

basically the UI changes around.. some things get deprecated / or their names changes the very most

[rich adder]

then ur fine

[ember gate]

last version 2023.2.20f1

should I install this one

[rich adder]

thats not LTS

[ember gate]

or unity6 6000.0.4f1

[rich adder]

use LTS

2022

[rocky canyon]

LTS's will be clearly marked

Long Term Support

[buoyant knot]

just back up the project

[ember gate]

ye found it

thanks

[rich adder]

btw https://www.youtube.com/watch?v=5IxUElilf2M something you should have

[rocky canyon]

https://git-fork.com/ my obligated Github Desktop alternative plug

[rich adder]

fork is good client but might be too overwhelming for beginner

[rocky canyon]

true.. the revert changes and check-outs and stuff might be a bit much

for ur basic push/pull stuff its pretty much the same

the documentation could be better tho 😢

i get help from my friends that use it when I get stuck 😅

[ember gate]

doing that tutorial rn

[rocky canyon]

if its too overwhelming.. u can always duplicate ur projects folder and zip it up as a backup

but learning how to use version control is a must eventually

[rich adder]

valid , I just wouldn't include Library folder unless you want to wait long xD

but then u have to wait to rebuild. its a double edge sword 😛

[rocky canyon]

true.. thats a good general point
the Library folder is included in the gitignore.. b/c its HUGE and Unity rebuilds it automatically when u open a new project..

soo if u want to u can delete it completely.. wont hurt anything.. and when u put ur project up on version control it gets excluded automatically (if ur gitignore is correct)

[swift crag]

yeah, this is just for the sake of making a local backup

[ember gate]

damn it took me so long

[woeful ivy]

hi could someone help me figure this out? im trying to make a wizard shoot a fireball in a 3d topdown game but i cannot get my head wrapped around what im supposed to do

[ember gate]

anyways imma go to sleep too exhausted to process all the stuff that were received by my brain, good night

[woeful ivy]

most of the things ive found are about shooting towards like a point, but i just want it to move in the direction that the mouse was at

[wintry quarry]

Are you following a tutorial or something? What part is getting you confused?

[woeful ivy]

im not following a tutorial, ive been looking at ways that other people have done it and cant seem to get it to work for me

[wintry quarry]

In this case - you'll want to just convert your mouse position to a world space position. I recommend using Plane.Raycast. You can find a code example for that here https://unity.huh.how/screentoworldpoint#alternate-methods

Then you can shoot your fireball int he direction towards that world space point

[woeful ivy]

oh okay, thank you :)

[cedar crest]

Hi! I have a small generated dungeon and got some performance issues with the amount of objects increasing. Can you give any links on how to improve and optimise procedural generation in Unity. Thanks in advance!

[wintry quarry]

You'd have to use the profiler and see what part of your code is causing problems

optimization goes like this:

• Use the profiler to identify bottlenecks
• Think about how to optimize those parts
• Do the optimization
• Go back to the beginning

[swift crag]

If you have no clue where to look, you can use Deep Profile to see every single function call. This slows things down a lot and unfairly punishes small functions (since each function takes longer to run).

you can then add your own profiler markers to areas of interest

  moduleMarker.Begin();
  foreach (var moduleList in moduleTypeMap.Values)
  {
      foreach (var module in moduleList)
      {
          if (module.Tickable)
          {
              module.ModuleInfo.Marker.Begin();
              module.Tick();
              module.ModuleInfo.Marker.End();
          }
      }
  }
  moduleMarker.End();

...maybe like this!

[cedar crest]

Thanks guys, I'll try to locate the bottleneck

Are these advice for finding issues in my own code or can i use it for analysing frame render?

I thought of some articles about runtime light or culling, as far as I know they don't work out of the box

[woven idol]

Can someone please tell me what in this is making my player slow fall (I am new to bolt)

[wintry quarry]

yep the whole ass thing is what's doing it

you're explicitly setting your Rigidbody velocity to 0

On the y axis

C# code equivalent of what you're doing:

rb.velocity = new Vector3(something, 0, something);```
You need to put in the rigidbody's exisitng y velocity in for y instead of 0

[woeful ivy]

it seems to have worked!! thank you so much, i've been trying to figure this out for hours lol

[tight scarab]

Would there be any way possible to make land like this from Sonic with decorations on top procedurally generated?

[wintry quarry]

SpriteShape for the ground: https://docs.unity3d.com/Packages/com.unity.2d.spriteshape@3.0/manual/index.html

procedural generation for the decorations would just involve either sampling the sprite shape, or doing raycasts along the top surface randomly

[tight scarab]

Alright, thanks!

[woven idol]

I already tried to add a Rigidbody Get Velocity --> Vector 3 Get Y --> Y of the vector 3 create but the player would only fall normaly if I pressed a key to move the player.

[tight scarab]

Oh wait, I meant it as in the land is procedurally generated randomly. I think I already got collision on the ground, but I haven't opened this project or used Unity in a while, would I still need the SpriteShape?

[swift crag]

yes, that's what Praetor was describing

using SpriteShape to make ground that goes up and down (and generally has randomly-generated shapes)

[tight scarab]

Oh alright, sorry.

[flint python]

Hello, I want to get some advice for my enemy spawn method.

I have EnemyAvailableList with 10 game objects(the enemy), which will spawn 3 each time(set active), when no game object is available, all 10 are active, and will instantiate a new enemy, will not Destroy() this instantiate object when killed by user, instead add it to the list for later use. And I believe they will get cleaned up automatically when switching scene or exiting the game.

do you see any issues that could caused by this method and impact the game?

[wintry quarry]

You put things in the wrong place then

[tall torrent]

hey, im a new scripter and this code doesnt act as i intend it to.

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

public class PlayerMovmentScript : MonoBehaviour
{

    public float movementSpeed = 15f;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.W))
        {
            transform.Translate(Vector3.forward * movementSpeed * Time.deltaTime);
        }

        if (Input.GetKeyDown(KeyCode.S))
        {
            transform.Translate(Vector3.back * movementSpeed * Time.deltaTime);
        }

        if (Input.GetKeyDown(KeyCode.A))
        {
            transform.Translate(Vector3.left * movementSpeed * Time.deltaTime);
        }

        if (Input.GetKeyDown(KeyCode.D))
        {
            transform.Translate(Vector3.right * movementSpeed * Time.deltaTime);
        }
    }
}

the problem is that i have to keep pressing the key repeatedly for it to move

when I want it to move smoothly while holding down the intended key

[outer coral]

Take a look at this:

https://docs.unity3d.com/ScriptReference/Input.GetKeyDown.html

That method only returns true the frame you start pressing that designated key

You are most likely looking for https://docs.unity3d.com/ScriptReference/Input.GetKey.html

[rich adder]

what you describe sounds like Object Pooling

or are you talking about like enemy waves ?

[tall torrent]

Ah yes, this has fixed my issue, cheers.

[flint python]

Sort of like pooling + instantiate when needed more enemy. So like when increase game difficulty will require to spawn more enemies and the pool might not have that many objects to use

[cosmic dagger]

your pooling system can auto-add more to the pool if empty and you need more . . .

that's what i did . . .

then you can remove the added instances back to the normal count when the current active instances hit below a threshold . . .

[plucky wharf]

Im tryina make a custom cursor and also lock and hide the system cursor, but for some reason its telling me that i cant do that anymore. Underlines with red and says "does not contain a definition for lockmode/visible" since when has this changed and whats the new way?

[short hazel]

Did you name your own class Cursor? It might be picking up that one instead of Unity's

[plucky wharf]

Ahhh sheit, definitely that, thanks lot

[gaunt basin]

im new to C# and dont know how to program pls help

[rich adder]

!learn

[eternal falcon]

:teacher: Unity Learn ↗

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

[rich adder]

start with the pathways

[stuck palm]

i realise this might sound like a stupid question, but does LateUpdate always run after update?

[rich adder]

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

LateUpdate is called once per frame, after Update has finished. Any calculations performed in Update will have completed when LateUpdate begins. A common use for LateUpdate would be a following third-person camera. If you make your character move and turn inside Update, you can perform all camera movement and rotation calculations in LateUpdate. This will ensure that the character has moved completely before the camera tracks its position.

[void thicket]

Yeah, that’s the point. To ensure other Updates are all done.

[rich adder]

its literally in the name 😛

[ionic zephyr]

If I am making a survivale game, should I make every breakable item an scriptable object?

[rich adder]

scriptable objects should just be container of data they cannot be gameobjects

[ionic zephyr]

should I contain the data of each item?

[ionic zephyr]

what could be a way of facing these breakable objects I get resources from

[rich adder]

well make it a prefab but the data itself can be SO

or an array of SOs and maybe randomize it

[ionic zephyr]

okay, thanks!

[summer stump]

I would make a MonoBehaviour called Breakable, and then when doing damage, do

objectIAttack.TryGetComponent(out Breakable breakable) {
  breakable.GetResources();
}

The breakable component could certainly have its resource data be an SO

[ionic zephyr]

Okay, thanks a lot

Ill start with the collectable resources

[rich adder]

the SO can also contain an array of resource prefabs and then pick from there etc

[woven idol]

It looks correct maybe im wrong?

[ionic zephyr]

Is it okay if all of my pickable items are enums in order to be displaced in the inventory?

[rich adder]

they could but, just have to keep modifying the enum each time you add one

[ionic zephyr]

is there a better way to make this inventory?

[rich adder]

SO + Poco is usually how I do it

[hoary halo]

Hey, Im making a multiplayer(Mirror for multiplayer) fps and I'm using animation rigging. Im assigning the target for "Two bone IK constraint" through code when the player is spawned. But when that happens the actual movement for the arms (that have the TB Ik constraint) doesnt happen. But if the target is assigned before starting playing it works. Does this have anything to do with Mirror or am I making a mistake?
This is how I assign it.

 RightIKBone.data.target = weaponComponent.RightHandIK.transform;
 LeftIKBone.data.target = weaponComponent.LeftHandIK.transform;

[ionic zephyr]

What is Poco?

[rich adder]

like a Plain Old Clr/Class Object

in other words a regular class or even a struct

thats where my Mutable data goes

[ionic zephyr]

Okay, I think I get it, I´ll try that

[rich adder]

the SO has the base stats, then create the plain object. that I can change damage and whatever on it

[ionic zephyr]

but what if the object is an apple?

[rich adder]

what about it?

if you mean separating between consumable and whatever, that can be an enum for sure

how many types of resource can really exist, they are usually already defined ahead of time

[ionic zephyr]

so each type of object could be an enum

should the object be an abstract class?

[rich adder]

depends what you're going for , now you're getting into a very complex topic

U usually use modularity though

[outer coral]

Abstractions are delicate

[rich adder]

using interfaces instead of inheritance

but sometimes inheritance makes more sense

[ionic zephyr]

oh okay, maybe Im going too far for my knowledge

[rich adder]

start with simple items, and simple things like enum sure

[outer coral]

Only abstract when absolutely necessary otherwise you are just adding unnecessary complexities and making it harder for yourself to debug at least from my experiences

[rich adder]

multiple enums per object doesnt hurt if it makes it easier for you

ie
Consumable vs
Stackable non Stackable
etc.

[ionic zephyr]

Okay, thanks for your help

[radiant frigate]

why cant i drag the audiosource to the audiosource var?

[rich adder]

you cant drag scene objects inside a prefab

[radiant frigate]

in what way can i do it then?

[rich adder]

put audio source on shotgun

[radiant frigate]

oh, smart

how didnt i think of that lol

ty!

[rich adder]

np.

its good a idea what ur going for but sometimes its better to Keep it Simple stupid

you would use an Audio manager which would have a static Instance, that would be easy access to play sound on an external component

or the component can be passed if its instantiated

[radiant frigate]

noted

[timid oriole]

I'm free

It's been a long 3 years but I'm back

[ionic zephyr]

is it better to use the "Invoke Unity Events" option in while using Unity´s new Input System?

[cosmic dagger]

it depends how you want to interact with your input. use the unity events or the c# events . . .

[zenith cypress]

Whatever works the best for you and your systems ^

[ionic zephyr]

Okay, thanks!

[summer stump]

I do prefer the events (either c# or Unity) over messages. You can subscribe many different methods to each event, and the name is mandated to be On[ActionName] like sendmessage

[rocky canyon]

ive been pursuaded to think SendMessage as being bad

not sure why i feel that way lol

[formal escarp]

What is this holy

[formal escarp]

what

[rich adder]

That’s because the SendMessage method on MB is inefficient and uses reflection. I don’t think it’s related to the one used in new input system though

[zenith cypress]

I think it's one of the last options on the component

[ionic zephyr]

How can I freeze ONLY my player once the inventory menu is shown on screen?

[frosty hound]

Have a bool that you check before moving your player

[ionic zephyr]

not working

[frosty hound]

If you say so

[ionic zephyr]

I freezed the constraints of RigidBody

[cosmic dagger]

that's not enough context. we have no idea how you implemented it . . .

[rocky canyon]

that'll work too but still need a conditional, like a bool or to check if the menu is active or not

[ionic zephyr]

The player continued moving even when the conditional (freeze) was set to true

however i think I partially solved it by freezing the constraints of the player´s rigidBody

[cosmic dagger]

was the conditional freeze supposed to stop the player from moving?

[ionic zephyr]

yes, if the conditional was active, rigidbody.velocity was set to Vector2.zero

I also tryed it with the vector I was using as movementVector

[cosmic dagger]

that's an important detail to provide. we don't know how you tried to stop the player from moving . . .

so it never stops. it just keeps on moving?

[ionic zephyr]

I managed that with a UIManager that unchecks the player movement script and the player input script

[ionic zephyr]

yes, in one direction

but I managed to more or less solve the problem (i think) by freezing all constraints in RigidBody

[wintry quarry]

You can't put it in before normalizing etc

It needs to go in at the end

[rocky gale]

how do i take a random position of a axis of a plane? for example if i have a plane and i want to get a random position in the bounds of its x

[summer stump]

If it is a root object, or its parents are scaled at 1, then RandomRange the x scale

[rocky gale]

ye but what do i put for min tho

[summer stump]

Then just add that to the position - x scale / 2

[summer stump]

Zero

[rocky gale]

oh

[void thicket]

Plane as in linear algebra doesn’t have ‘bounds’

If Plane is just your game object then random range sure

[hollow patrol]

is it okay to create scripts just to organize variables for a specific object/task?
I don't want my main script to end up being a monster script with everything in it, but it feels a little awkward to use obj.GetComponent<Script>().variable when I could probably just declare the variable in my main script

ie. im wondering what the best practice is

[cosmic dagger]

single responsibility principle (SRP) . . .

[rocky canyon]

you shouldn't need to call getcomponent more than 1nce unless u have to either..

cache it and use that instead

[cosmic dagger]

each class has one responsibility, not multiple . . .

[hollow patrol]

kk yeah I'll just stick with what I have then

[acoustic arch]

is it normal for a decent sized game to have quite a few scripts

[rich adder]

is this a real question?

[void thicket]

Very vague

[rich adder]

#archived-shaders

[summer stump]

Sure 🤷‍♂️

[rich adder]

yeah there isn't a "guage" for normality..

[acoustic arch]

is it better to minimize scripts or just not worry

[rich adder]

you got as many scripts as you need, doesn't matter

[void thicket]

You’d need to define “normal” “decent size” “quite a few”

[summer stump]

I feel like you have asked this quite a few times, or at least variations of it.

The answer given has usually been to split responsibilities

[acoustic arch]

i'd think so to but this one i don't think so that i can remember

but i'm also very dumb

[summer stump]

Don't worry about the number of scripts

[cosmic dagger]

minimize scripts? you're never going to have too many scripts. there is no way to define, "decent sized game," or "quite a few," scripts . . .

[acoustic arch]

gotcha

i basically live on this discord sometimes so

[hollow patrol]

yeah i'll do that thx - thought it wouldn't work but I confused myself over the value vs. reference stuff

[sleek pond]

Hey guys

Can anyone tell me which YouTuber i should follow for c# coding

[rich adder]

!learn

[eternal falcon]

:teacher: Unity Learn ↗

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

[stray pivot]

Brackeys and Code Monkey

[fathom locust]

hey ehh,How to do the Cursor lock in unity?

[rich adder]

you tried looking on google

[fathom locust]

alr,I'll try

[rich adder]

its like the first result lol

[fathom locust]

Bruhh,its kinda ez af lol

[quasi sparrow]

Hey guys

Can you learn coding in unity on the unity learn hub

Like the language for unity projects , what we use

[dark hatch]

i want a place to store certain functions (abilities) so that with some parameters i can call them from anywhere (eg. player script or enemy script). how do i go about doing this?

[charred spoke]

Sounds like you need a static class

Or perhaps a singleton

Need more info

[dark hatch]

i want to be able to call Abilities.Explode() or similar from both player script and enemy script. there's a lot of way to do this, but what is ideal? (to keep things organised and not run into a plethora of future problems)

[rich adder]

the learn website?

[eternal needle]

abstract class or interface, if you arent already using it. Abilities implement whatever they want, not specifically an explode method but like an activate ability method and one derived class may do an explosion during this.

[quasi sparrow]

i mean to code in unity

[teal viper]

Yes, you can learn it on unity learn. But it's also advised to learn it outside unity context before that.

[quasi sparrow]

ok

tnx

[vagrant zealot]

hey! im trying to add a Animation for UI image, how can i achieve that? couldnt find a proper topic on the internet. Thanks !!!

[teal viper]

The same way as any other object: animation/animator or code

[stuck axle]

If you want a tiling/repeating texture, is having a shader/script to change the tiling of the material a must? It feels so common a usecase that there must be a way builtin

[radiant frigate]

i builded my game and now the character moves slower than in the one i open with the unity hub, is it something that i can change via code?

[dense pike]

I need a enemy follow player script

[unkempt carbon]

hi guys I have a question! How do I access an enum from a scriptable object class to another script using monobehaviour?

ok never mind i just wont use enums at all

[plain oxide]

Enums are useful for many cases. What do you mean by accessing the enum? Is it a public variable on the ScriptableObject of a specific enum type?

[plain oxide]

So, this is the definition of your ScriptableObject class. Do you have any asset of this class? (I'm not sure how familiar are you with SOs)

[unkempt carbon]

Do you mean the actual asset (data container)?

[frank zodiac]

should i use raycast or physics2d.overlapcircle for my groundcheck?

[teal viper]

Same as any other type/variable(depending on what you mean) defined in an SO.

[teal viper]

Up to you. Both have ups and downs.

[frank zodiac]

what are the ups and downs exactly? and also are there any other methods besides the two i just mentioned?

[teal viper]

Raycast:

• would not detect colliders that it starts in
• only checks a ray, so you character would not be grounded when standing a bit below the edge
• would require some specific logic for deciding if you're grounded. For example, checking the distance of the hit.
  Overlap:
• Would still detect collision even if you're at the very edge
• would require some logic to not become grounded when colliding with a wall

There are probably more things that I can't come up with right now.

As for other methods, you could also just use the collider collision events.

[plain oxide]

Yes. Because as @teal viper says, once you have the asset referenced in your MonoBehaviour, you can access the variable just like any other.

[unkempt carbon]

I just read somewhere that unity serializes enums using their integer value so if I added more to the list it can cause problems. I'm just going to make the scriptable object reference to another scriptable object

[willow scroll]

#💻┃code-beginner message

OnCollisionEnter & OnCollisionExit:

• Is more precise
• You don't have to adjust the sizes and radiuses like with Raycasts and Overlaps
• Non-straight surfaces don't matter and are calculated properly

[plain oxide]

Adding values to a list only causes problems if you add the new values before the old ones. Because obviously now the numbers mean something else.
But if you keep adding new ones at the end, it never breaks.
Obviously it also means you can't remove old values.

But that doesn't mean you shouldn't use enums!

[unkempt carbon]

That is true, however if I was on a team and they changed it without knowing and commited the change im gonna-

[frank zodiac]

oh i see.. thank you then!

[frank zodiac]

really? i never saw someone use oncollisionenter for a groundcheck

ill be sure to try it

i appreciate the help 👍

[plain oxide]

True, but that is down to communication and ownership.

[willow scroll]

Don't see why one wouldn't use it

I don't think there are more precise options

[teal viper]

I mean, these are all obvious properties stemming from the fact that one is ray and another is an overlap circle.

The best way is to try and see for yourself what fits your project.

[willow scroll]

If you need to simply calculate whether the player is on the ground, regardless of its shape, use OnCollisionEnter & Exit

It's going to detect whether the colliders touch, which is appropriate for the majority of cases

[frank zodiac]

im making a 2d platformer similiar to celeste for context

so i need it to be extra precise

[willow scroll]

Then use OnCollisionEnter2D & OnCollisionExit2D

[frank zodiac]

i will

thanks

[willow scroll]

Of course, it can be achievable with Raycasts and SphereCasts, but it doesn't make sense if you already have an option, which calculates collisions for you

[teal viper]

There are issues with collision messages as well. There's no perfect solution. You need to test and see for yourself.

[rich egret]

!codr

!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.

[rich egret]

https://gdl.space/qematavoku.cpp
Why OnRoomListUpdate is not called?

[languid spire]

Because there is nothing in that code that calls it

[rich egret]

In Photon, it should calls itself

[languid spire]

then I suggest you ask in the Photon server

the main reason why an overriden method would not be called is because the calling method has not/could not cast the class correctly

[ionic plank]

Hello everyone,
I have a python script and I want to use it with a cs script ( I already looked on internet but I can't find any answer). Do you know how to do it ?

https://gdl.space/epopugoniz.cs

https://gdl.space/guqamulamu.py

I have also this error :

See "Script Serialization" page in the Unity Manual for further details.
Save.persistence.ConnectionManager..cctor () (at Assets/Script/Save/persistence/ConnectionManager.cs:9)
Rethrow as TypeInitializationException: The type initializer for 'Save.persistence.ConnectionManager' threw an exception.
Save.dao.ExecutionDao..ctor () (at Assets/Script/Save/dao/ExecutionDao.cs:17)
Save.service.ExecutionService..ctor () (at Assets/Script/Save/service/ExecutionService.cs:9)
Donneesentrees..ctor () (at Assets/Script/IA/Donneesentrees.cs:14)

[languid spire]

Follow the stack trace backwards. It gives you all the information you need to find the error

[teal viper]

Another reason not to use public fields thoughtlessly

Or at all

[stuck palm]

why can i use a character class as a boolean?

[verbal dome]

Does it inherit from MonoBehaviour?

Unity allows MB's to be implicitly cast into booleans

It's basically the same as if(player == null) return;

Well not just MonoBehaviours, but all UnityEngine.Objects really

[stuck palm]

it does

[stuck palm]

i didnt know that, cool

[swift crag]

it's an implicit operator

[stuck palm]

how can you program explicit casting?

if necessary

[teal viper]

Explicit casting is just (bool)variable

[stuck palm]

sometimes it says u cant do that thoug

[teal viper]

Yep. You need to define the custom conversion operator.
https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/user-defined-conversion-operators

[swift crag]

An explicit operator allows you to do an explicit conversion, but it won't permit an implicit conversion

[stuck palm]

i havent touched operators yet

i dont need to but it sounds itneresting

[swift crag]

if only they were as wild as C++ operators

you can overload = there

[swift crag]

on second thought, let's not go to Camelot

it is a silly place.

[teal viper]

Pretty sure you can define custom asignment operators in C#

[languid spire]

A fellow python (not the language) fan, I see

[teal viper]

Hmmm... Looking at the docs, it seems like you can't

[swift crag]

You are limited to the unary, arithmetic, and comparison operators

(and a few unay operators aren't permitted)

[slender nymph]

Yeah pretty sure the best you can do is implicit casts for weird assignments

[swift crag]

what's interesting is that there are true and false operators

you're allowed to return false from both of them at the same time

true, false, file_not_found

[tender breach]

Why is Spawn = True in this code: https://pastecode.io/s/09qwryx7 https://pastecode.io/s/z4i3hhyd https://pastecode.io/s/nwottz8w (This will be the last time I ask, I promise).

[hardy vortex]

I'm not sure if this is the place to ask questions, and if it's not please let me know.
I'm trying to use the line renderer but it's only moving in the y direction even if I enter a value for the x-axis.

[tender breach]

I'll check back on this in a few minutes

[swift crag]

I bet something is rotated by 90 degrees

[hardy vortex]

How / where can I check?

[tender breach]

Why isn't anyone responding to this?

[swift crag]

Create a line renderer with no parent. Make sure its rotation in the inspector is [0,0,0]

also ensure that your camera is facing in the +Z direction. Setting your Scene View to 2D mode will do this

[tender breach]

@swift crag

[tender breach]

Respond

[hardy vortex]

turns out the x-scale was set to 0 -_- thank you for you help it's appreciated

[frosty hound]

Please don't bother people. Consider maybe those who are experienced enough are not in the headspace to deal with another long discussion over messy code. You can be patient and wait.

[lethal bolt]

I dont even know anymore

[polar acorn]

Sorry mate didn't know I was getting a paycheck from you

[polar acorn]

You can't put a yield return in a method that returns void

[swift sedge]

you need a coroutine

[lethal bolt]

oh

Is there another way to make wait?

[polar acorn]

Use a coroutine

Or keep a running timer and do some math

[lethal bolt]

I see

[swift sedge]

i dont know if you can use threading... but that would not be a good idea to do so

[lethal bolt]

Like this?

[swift sedge]

yes

[polar acorn]

You can't run unityengine functions outside of the main thread, which means for this case you couldn't use it for Instantiating

[polar acorn]

Your coroutine currently does nothing

[lethal bolt]

I Noticed

that

[swift sedge]

its half way there

[lethal bolt]

Lol

[polar acorn]

You do nothing, wait one second, do more nothing, then exit

[lethal bolt]

yes....

[swift sedge]

you need to instantiate it inside the coroutine

[lethal bolt]

okay

[dim wharf]

im not used to C#. How do I make it so the other class knows that the class its referring to exists in a different folder

[lethal bolt]

Public?

[dim wharf]

they are public classes

[lethal bolt]

So just put the GetKeydown code inside I Enumerator?

[swift sedge]

Character doesnt know those other classes exist

[polar acorn]

The folders don't matter unless you have assembly definitions in them. Are you using assembly definitions?

[kind cave]

public class Script1 : MonoBehaviour
{
    private Manager manager => GetComponent<Manager>();

    private void Update()
    {
        if(manager.b != null)
        {
            mananager.b.Func();
        }
    }
}

using UnityEngine;

public class Script2 : MonoBehaviour
{
    private Manager manager => GetComponent<Manager>();
    private B b;
    private void Awake()
    {
        b = manager.Resolve<B>();
    }
    private void Update()
    {
        if(b != null)
        {
            b.Func();
        }
    }
}

using UnityEngine;

public class Manager: MonoBehaviour
{
    public B b;
}``` Which script will be better for performance? Script 1 or 2?

[dim wharf]

I am not familiar with C# so I'll try looking up assembly definitions

[kind cave]

They are not that difficult 🙂

[dim wharf]

ok

[polar acorn]

Do you have any files with the extension .asmdef in your code folders

[dim wharf]

No. Not yet

[swift crag]

show us the Stats.cs file

also, has Unity tried to reload since you created those files?

it needs to see them so that it can update your .csproj files (which your code editor uses to know what files to look at)

[dim wharf]

this is what solved it lol

thanks for this

didnt expect it to work like that

[swift crag]

I have Unity set to only manually reload, so I have to tab over and cmd-R it after creating new files

If you open the Assembly-CSharp csproj file, you'll see a big list of every single script file

VSCode reads that to learn what is and is not part of your project

[dim wharf]

Ohhhh I see

thanks

im used to java so

a lot of c# stuff is new to me

[frank zodiac]

whats the best way to create smooth, 2d platformer movement in unity?

should i use rigidbody.addforce or transform.translate?

[frosty hound]

Of those two options, your only option is the rigidbody.

[frank zodiac]

why

what are the pros and cons

[frosty hound]

Because translating doesn't respect physics, and presumably you'd want things to collide.

[frank zodiac]

oh yeah, i didnt think of that..

[frosty hound]

But if you do choose to use non physics, you'll have to use raycasts and do your own calculations.

[frank zodiac]

well are there any other good options? like character controller 2d over rigidbody2d

[frosty hound]

There is no CC for 2D built in

[frank zodiac]

can i use the 3d one

[frosty hound]

So really, it is the rigidbody method if you don't want to get an asset of the store

[frank zodiac]

okay then thanks

[frosty hound]

Sure, as long as the rest of your world is using 3D colliders.

[queen wren]

I'm trying to add 2 to a Button event OnClick but for some reason it will add just one event, any reason why?

button.onClick.AddListener(() => { elevatorManager.floors[index].spawnPoint.gameObject.SetActive(true); });```

[willow scroll]

#💻┃unity-talk

[willow scroll]

It should add both

[wintry quarry]

What makes you think it's only adding one?

[queen wren]

Because I've tested it 😅

[wintry quarry]

How

did you add log statements? Use a debugger?

[willow scroll]

print 1st listener and 2nd listener for them and check out

[wintry quarry]

You need to add logs or use the debugger

[queen wren]

As you can see it adds just the trigger ¯_(ツ)_/¯

[wintry quarry]

that's the only real way to test it

[wintry quarry]

AddListener adds nothing to the inspector

those are for persistent listeners only

[willow scroll]

Also, you can write an inline lambda without { }

[wintry quarry]

Use logs or the debugger to actually test this

[queen wren]

Oh I see ... nice...

[willow scroll]

AddListener is not persistent. It disappears after exiting the game. The Inspector listeners don't

[summer stump]

Why did you share three entire scripts? Share just the relevant one or at least tell us where the code you're worried about is.

But my recommendation is to add logs around...

[queen wren]

Indeed Debug.Log("Destination is " + level); still the best friend ever 😁
Thank's you all guys 🍻

[willow scroll]

// MonoBehaviour
print($"Destination is: {level}");

[queen wren]

I still prefer + 😅

[frank zodiac]

should i use a circle or box collider for my groundcheck?

[summer stump]

Log 4 values with words and punctuation between and tell us if you feel the same

[queen wren]

maybe because C=64 basic, or because I'm coming from Visual Basic... 🤭
with 4 value I will use a lot of + signs 😅

But you're right, I'll force my self to evolve even more 😉

[frank zodiac]

https://pastebin.com/QAL5tUGE what can i improve with this script?

[verbal dome]

String interpolation is usually better for performance but yeah why would it matter in a debug log that is temporary

[queen wren]

but to improve is important, and I should use it also in ingame string instead of plus sign

[willow scroll]

• Assign Rigidbody2D in Awake, not in the Inspector

private Rigidbody2D _rigidbody;

private void Awake() => _rigidbody = GetComponent<Rigidbody2D>();

• You can keep the ordinate the same by multiplying the abscissa by Vector2.right

Vector2 movement = movementX * Vector2.right;

• Create a method to not repeat the same thing, and make sure the layer is checked using your already created LayerMask groundLayer

private void OnCollisionEnter2D(Collision2D collision) => SetGrounded(collision, true);
 
private void OnCollisionExit2D(Collision2D collision) => SetGrounded(collision, false);

private void SetGrounded(Collision2D collision, bool value)
{
    if (collision.layer == groundLayer)
        isGrounded = value;
}

• Make sure the region is ended outside of the OnJump method

private void OnJump(InputValue inputValue)
{
    // ...
}

#endregion

[summer stump]

I answered you in the other channel before you removed it

[verbal dome]

Usually i let my IDE convert it to an interpolated string at that point

[queen wren]

but I'm lazy AF 😂

[frank zodiac]

oh thank you, ill check that now

[verbal dome]

VSCode doesnt like to show intellisense properly inside interp strings

[frank zodiac]

i didnt know i could check layers in collisionenter and exit

thank you

[willow scroll]

Note that I have used the previous version of the script, which you then have removed

[frank zodiac]

i put the collisionenter and collisionexit in a seperate script onto a gameobject on the players feet with a box collider so it acts as a groundcheck

[willow scroll]

Great idea

[frank zodiac]

wait how do i make my player movement more snappy? when i use rigidbody.addforce it makes the player slide like its on ice

should i use a physics material and add friction or something?

[summer stump]

Yeah, that can definitely help

Without friction, you are basically on an even slippier substance than ice. Some absolutely frictionless material

[frank zodiac]

nvm, physics material doesnt do it

even at max friction theres still sliding

which ruins the whole point of my snappy 2d platformer experience

[summer stump]

Is there a material on both objects? Did you set the friction mode to max or is it still average?

[frank zodiac]

its on max

and yes its on both objects

[summer stump]

Ah ok. Well, addforce is certainly going to cause SOME sliding, unless you combine it will velocity setting when you have no input

[candid rune]

quick question, is it more expensive or taxing to pull functions or variable from other scripts?

[ivory bobcat]

You'd need to profile it. Other than that, stick with what's readable and possibly follow the SOLID principles.

[swift crag]

reading a field from an object is trivial

[short hazel]

If it's a DateTime value, then you can call .ToString() on it and pass a custom format string to that method.

Do note that by default, date formatting is localized, which means it's adapated depending on the language of the system your app is installed on.

So a user living in the US will not see the same thing as a user living in Germany, for example

(default ToString() without any custom formatting applied)

[stuck palm]

what does this mean? theres no stack trace

[short hazel]

Seems like a coroutine failed to resume after a yield. First time I see that one though

Maybe the object with the coroutine was destroyed but Unity still got a reference to it, somehow?

[worthy merlin]

I was working on a scriptable object to hold my Operation data for game scenes. I wanted to add a variable for the scene this operation is in but for some reason it is not showing in the inspector?
Called as public Scene OperationScene;
https://gdl.space/edimeyogeh.cs

[swift crag]

Scene represents a loaded scene and is editor-only, so you can't serialize it.

[short hazel]

Scenes are not serializable. You'll need another way to reference a scene, by name or build index for example

[swift crag]

there's this lil guy

https://assetstore.unity.com/packages/tools/utilities/scene-field-attach-scenes-to-inspector-free-223368

I use something I copy-pasted from the unity forums several years ago, as god intended

[worthy merlin]

thx!

[swift crag]

(I mixed this up with SceneAsset; that is editor-only)

[worthy merlin]

I cant find a proper step by step on that page. How do I import it into my scriptable Object

using Udar.SceneManager; nvm found it. Finally showeed in my VSC list

[swift crag]

add a SceneField field to your class

[lethal bolt]

Why isnt the boost working

[modest dust]

First of all, are you getting the log in the console?

[polar acorn]

Do you get your log whenever you press space

[modest dust]

Second of all, is the speed boost value in the inspector the same as expected (40 in this case I presume)

[lethal bolt]

Yes

[polar acorn]

then it's working

every time you press space you move forward a bit

[lethal bolt]

Why cant i hold

[modest dust]

Third of all, this boost is active for one frame, so the deltaTime is small, thus the boost is small

[polar acorn]

Because you aren't checking for a hold. You're checking for a press

[lethal bolt]

So i take away Down?

[modest dust]

Yes

[lethal bolt]

Thanks.

👍

[stuck palm]

shouldnt it say something else though? nothings been destroyed

[short hazel]

From what I could see on the forums is that it can happen when you use StopCoroutine() to stop a coroutine that was started on another object. The error seems harmless though

[stuck palm]

its not harmless in my case, as it seems to make my character freeze in place.

[short hazel]

eg.

Coroutine c = obj.StartCoroutine(M()); // coroutine is started on 'obj'
StopCoroutine(c); // attempt to stop the coroutine on 'this', but it was started on 'obj'
obj.StopCoroutine(c); // correct

[stuck palm]

oh i seeeeeee

wait that makes sense now

cus the issue as from an explosion

that destroys itself

that makes much more sense

i thought startcoroutine did that impliocitly

public Coroutine CurrentStun
    {
        set
        {
            if (currentStun != null)
            {
                StopCoroutine(currentStun);
            }
            currentStun = value;
        }
    }

    [SerializeReference] private Coroutine currentStun;

is this a good way to do this?

[void thicket]

Why do you need serialize reference on Coroutine?

[stuck palm]

Just so I could see if the coroutine was actually setting properly or not

But basically I only want one stun coroutine happening at a time

So when it gets set, it turns off the old one if there is any

[void thicket]

You could use logging for that. Also Coroutine should be stopped by the script that started it

So it doesn’t make much sense that it is set by public property

Better way is having StartStun() method or something

And manage coroutine internally

[stuck palm]

Makes sense, but do you think this method is robust enough? I just did this now but I still appear to be getting coroutine continue failure errors

[void thicket]

Error looks like there is issue with the coroutine

Logic inside the coroutine.

[stuck palm]

I see

I just left the house but will review this when I get back thanks

[flint python]

from the unity documentation "OnDestroy occurs when a Scene or game ends." if I have a listener, and I want to remove it in OnDestroy, but the game crashes, or is forced to terminate, what happens to this listener? does it still exist?

[slender nymph]

that memory will get cleaned up by the OS

[short hazel]

When the game crashes the process is stopped abruptly. It's the same as graceful shutdowns, the memory is freed and can be repurposed to other processes

[wintry quarry]

If the game crashes nothing in your application will exist anymore

[vernal thorn]

I want the player too go in the direction and not too the cursor : (

    void Jump()
    {
        Vector3 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        Vector2 direction = (mousePosition - transform.position).normalized;

        float appliedForce = Mathf.Lerp(minJumpForce, maxJumpForce, Mathf.Clamp01(holdTime / maxHoldTime));
        rb.AddForce(direction * appliedForce, ForceMode2D.Impulse);
    }

[swift crag]

well, you told the player to move towards the cursor...

[vernal thorn]

yeah

[dense root]

What is the purpose of normalizing a vector?

[swift crag]

a normalized vector has a length of 1

[vernal thorn]

because i dont know how too make go in the direction

[swift crag]

this is important any time you need a direction

you wouldn't want to move faster if the mouse was further away

[swift crag]

what is "the direction"?

i have no idea what you actually want to do

[vernal thorn]

So i want too make that the player jumps in the direction of the cursor and the longer the mouse button is hold down the player jumps wider (like golf or jumpking)

[swift crag]

but you said you don't want that

I want the player too go in the direction and not too the cursor : (

[vernal thorn]

I said i want that two times now

[void thicket]

Making a "unit" vector that length is consistent
In other words removing the size while keeping the direction

[vernal thorn]

I want the player too go in the direction

So i want too make that the player jumps in the direction of the cursor

[swift crag]

This makes no sense. You said you want it to go in the direction of the cursor. That's what your code does. But then you said you don't want it to go in the direction of the cursor.

You're going to need to show me a video of the problem if you can't explain it.

[upper forge]

what does Quaternion.Euler do and mean?

[swift crag]

did you read the documentation?

[void thicket]

That means creating Quaternion from Euler angles

[upper forge]

uhh no, ill check it out right now

[swift crag]

you should consider doing that (:

[dense root]

What's an instance when you wouldn't want to normalize a vector?

[swift crag]

any time you care about both direction and magnitude