archived-code-general

[somber nacelle]

but why

[heady iris]

and it doesn't restore the old RNG state afterwards

see SplineInstantiate.cs

[somber nacelle]

you should 100% report that as a bug

[heady iris]

I thought I was going crazy when an enemy performed a 33%-chance attack 30 times in a row

URP 14.0.8 also sets the RNG state, based on frame count

in PostProcessUtils.cs

that's also bad.

[somber nacelle]

shit at that point i'd just start using System.Random to avoid random packages from screwing with the rng

[heady iris]

static moment

[somber nacelle]

shame there's no .net 6 yet for that nice convenient Random.Shared

[heady iris]

just through the "Report a Bug" window, right?

i'm not sending them my entire project, so I guess I should make a demo

Can't reproduce it in a new project so far. I'll have to embed the package and poke around a bit, I guess

notably, I have no components of type SplineInstantiate in the scene in my game..

[void turtle]

Does anyone know how to fix the backround fps of my application? it runs on less than 1 fps and I cant really test stuff in multiplayer. I already checked the NVDIA Control Panel and Player Settings

[heady iris]

okay, I can reproduce it now that I actually have it instantiating objects.

[leaden ice]

This might help https://forum.unity.com/threads/unity-editor-performance-drop-when-losing-window-focus.518761/

[void turtle]

I tried that but It didnt work 😦

[tawny elk]

Posting code

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

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

[orchid bane]

We want to make a MonoBehaviour which will have a reference to a system and all the data needed for that syste. For example if it references SceneChangeSystem then it should have a scene's name, if it has a reference to DropThingsSystems then it should have a DropTable. We want it to be only 1 kind of Monobehaviour. It all will be saved to json. We consider the optiong of using uuids as references. Can you think of any way to do something like that?

[hard viper]

I'm trying to figure out how to set up VFX. I set up the pipeline and everything. I have a VisualEffect component on one gameobject (prefab). Here is what I am seeing:

1. Dragging prefab into scene => yes VFX
2. Instantiating prefab programatically => no VFX
   Any ideas as to why this is hapenning

[heady iris]

Oh my god it wasn't Splines' fault

i mean

Splines is still buggy here. Just reported that issue.

But it wasn't causing the issue.

[limber dust]

so i have this pagecollect text object dragged into this script, but when i run my game it disappears???

[heady iris]

It's PostProcessUtils.cs in com.unity.render-pipelines.universal@14.0.8

It seeds the RNG with the current frame count

[limber dust]

what is causing this?

[somber nacelle]

you're probably reassigning it in Start or Awake

[limber dust]

i think i am

i will check

[heady iris]

This is breaking RNG for...basically any game that uses URP. Oops.

[somber nacelle]

lol wtf

[limber dust]

public class Page : MonoBehaviour
{
    public Text PageCollect; // Reference to the Text component

    // Start is called before the first frame update
    void Start()
    {
        PageCollect = GetComponent<Text>(); // Get the Text component
    }

is the problem here?

[somber nacelle]

yes, remove that line from Start

[limber dust]

okay i will try

[somber nacelle]

that's literally reassigning it to the Text component on this object. which does not exist so it assigns null

[sterile mist]

Hey can anybody help me w a code?

[heady iris]

perhaps if you ask a question

[limber dust]

thank you so much, it worked, lmao im kinda dumb now that i look at it! thanks!

[somber nacelle]

https://dontasktoask.com/
also see #854851968446365696 for what to include when you do ask a question

[sterile mist]

Okay so basically how do I separate these 2

[sterile mist]

Oh okay

Am I in the right chat tho

[somber nacelle]

is it a general code question or a beginner code question? if it is the former, then yes. if the latter then #💻┃code-beginner would be more appropriate

[sterile mist]

Idk if it counts as beginner

Yk what I'll just ask it in beginner just to be sure

Ty

[heady iris]

reported both bugs

very funny how I randomly found a Splines bug by accident

well, that was an annoying two hours, but at least I know what's going on now

[thick socket]

Tag: tag name is null or empty.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
ForwardDetector:OnTriggerEnter2D (UnityEngine.Collider2D) (at Assets/Scripts/Enemy/Trigger Checks/ForwardDetector.cs:15)

 private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.CompareTag(WallTag) || collision.gameObject.CompareTag(WallTag2))
        {
            _enemy.forwardDetector = true;
        }
        else if(collision.gameObject.CompareTag(PlatformTag) )
        {
            _enemy.forwardDetector = false;
        }
    }

so apparently if I have a Collider untagged unity gets mad?!?!?

[heady iris]

no, WallTag or WallTag2 are null or empty

check their values.

[thick socket]

Do the tags have to exist?

or can I not have a tag made thats called "test"

and have WallTag = "test"

[heady iris]

ok, cool, but are WallTag or WallTag2 null or empty when you use them?

check by logging them

If WallTag is a public field, then you probably added that field initializer after you already added this component to something

[somber nacelle]

the strings you pass to CompareTag must be not null and not just whitespace. they also have to be an existing tag. the main benefit of using CompareTag is that an error will be thrown when the tag does not exist

[heady iris]

the value shown in the inspector is what's serialized

that will overwrite whatever the default value of the field is

[thick socket]

gotcha thanks

that was the issue, I just put a random tag in 1 spot cause I just didn't need it and it was throwing errors when I didn't have one 😄

[somber nacelle]

well no, the error you received is because the string was either null or empty. you'd get a different error if the tag doesn't exist

[heady iris]

Tag: tag name is null or empty.

that's the error.

[heady iris]

again, do this.

log both values before that line of code runs

look at what gets printed out

[somber nacelle]

use this line to see both of those tags printed: Debug.Log($"Tags '{WallTag}' and '{WallTag2}'");

[thick socket]

I added "test" to my tag list and errors gone now

¯_(ツ)_/¯

[heady iris]

okay, but did you do what we both asked you to do?

WallTag2 is null or empty

The conditional short-circuited because CompareTag(WallTag) returned true

[thick socket]

Okay but like did you hear that I dont have an error

[heady iris]

So it skipped CompareTag(WallTag2)

[thick socket]

So they arent null

[heady iris]

No, you don't have an error because || short-circuits.

If the first half of the conditional fails, the second half will throw an error when that empty WallTag2 string goes in.

[thick socket]

Anyway thx this fixed issue 🙂

[somber nacelle]

yeah until you realize that we were actually right about one of those strings being null or empty

[heady iris]

we are trying to get you to understand what actually went wrong

You were originally getting two errors

one for a bogus layer name, one for the layer name being null or empty

(i just went and checked how this would behave)

WallTag2 is still null or empty, but there's no error because || short circuits and prevents CompareTag(WallTag2) from executing

You will suddenly start getting errors again if you bump into something that isn't tagged "wall"

[hard viper]

I'm still confused with my VFX issue. I have a prefab with a VisualEffect component. If I drag the prefab into the scene, the VFX plays. If I instantiate it programatically, it does not play, even if I call .Play() on the component.

Removing the component during runtime and adding it back in does nothing.

[heady iris]

what about toggling the game object or the component?

[hard viper]

also no effect

[heady iris]

I had a bug once where I was using GetComponentInChildren<Renderer>() to fetch a mesh renderer

at some point, it started grabbing the visual effect renderer instead

and that wound up breaking the effect

(I was messing with the renderer a fair bit)

doesn't sound like that's what is happening here, though

[hard viper]

this is what is in the component during OnEnable

[orchid bane]

How to show one object inside another one with Odin?

[hard viper]

I did a little more testing. The particles ARE being made. They just aren't rendering

[dawn mauve]

Has anyone done an event heavy version of a their game before?

For me it makes the most sense to do "event storming" (kinda like brainstorming except trying to find events in a software system) and try to find what events occur in what I want to build. I have a tight definition of event to mean "an interesting happening in the game, phrased always in past tense" (YMMV).

Just curious what experiences others have had.

[hard viper]

I try to have a few singletons with several very frequently used events, so events can all be coordinated

I also have a bunch of events going around, but a lot of things get tied to something like "OnEnterPlay", "OnLevelLoad"

which then get OnLevelLoadEarly, OnLevelLoad, OnLevelLoadLate so I can orchestrate who does what when

[hard viper]

dude this Unity VFX package is garbage. this is the second time the VFX graph file it makes just gets corrupted during normal use, and causes repeated crashes

second time in 1 hour

[limpid owl]

i saw a unite 2017 video where they used scriptable objects as channels or medium instead of hard rigid reference to classes and i think it's a good method, the problem is that each object that need the SO require a drag and drop from the inspector so i was thinking if DI container is good to inject all so objects

UI ---> PlayerMoney <----- other classes

video link : https://www.youtube.com/watch?v=raQ3iHhE_Kk

[wispy wolf]

I can never remember vector math terms. I suppose this is kind of like project(), but that's not doing that I want.

I have a vector3, say (4, 0, 1) to make it easy. I have a normal (1,0,0), again very simple to make it easy.. What I want is the result of first vector that excludes the normal. So in this case the result should be (0,0,1), because all of the vector magnitude along the normal (1,0,0) has been ignored.

What's the term for this?

[lean sail]

if im understanding what you are saying, this isnt some math thing at all. its just a matter of zero'ing out some component

[wispy wolf]

It won't always be zeros

[uneven vortex]

so uh, im attempting to make a 2d game for my friends, and whenever its on office 1 it thinks its on office 2 im new to unity, so i dont exactly know how to fix this

[limpid owl]

(4,0,1) x (1,0,0) = (4,0,0)
then
(4,0,1) - (4,0,0)

don't know about this not sure i understand u well
@wispy wolf

[uneven vortex]

without completely disabling office 2

[lean sail]

I dont believe ive seen such an equation, you may have to elaborate more because ive never heard of "excluding" a normal and ive done a few lin alg courses.
Maybe what GMA posted above is what you want, although you cannot multiply vectors 1x3 * 1x3
you have to multiply each individual component

[limpid owl]

overlapping ui ?

[uneven vortex]

no, they are in different areas

[limpid owl]

u need to provide more details so we can help

[uneven vortex]

one second

basically when i try to touch the button for the first office (left) it thinks im on the second office (Right). I have no clue what other details im supposed to give

found out the issue

nvm

[hard viper]

i figured out my particle issue. It was caused by orienting to face camera. No idea why that was the culprit.

[eternal wagon]

somehow my game view scales to 1.8x everytime I hit "Play"
Anyone know what's the reason?

[rigid island]

do you have Maximize on play enabled ?

[eternal wagon]

nope.

[leaden ice]

in the resolution dropdown there's a checkbox for "Low Resolution Aspect Ratios". Is that checked or unchecked?

[eternal wagon]

Its unchecked..

[leaden ice]

ok that's good

idk what the problem is then lol

[eternal wagon]

it started happening recently. when I added LevelPlay and changed platform to android

[cosmic rain]

Are you using the device simulator?

Or otherwise a mobile device resolution in game tab?

[eternal wagon]

nope. I just set to 16:9 resolution, but it happens in free aspect too.. if I check the low resolution aspect checkbox, my UI adjusts properly. but the lowest scale is then set to 1.8x..
and it looks ugly..

[leaden ice]

wait now low resolution ratios is checked?

[eternal wagon]

Yes. I just tried with that checkbox ON.. and the UI properly adjusts.. but everything is in low res 😐

Okay. I think I found a fix.. Unity probably bugged out.. I just changed my editor layout to default and then readjusted all my windows. and it fixed itself.

Thank you for all your help Nashville, Praetor, dlich, navarone 🙏🏻

[wispy wolf]

I didn't help but you are welcome lmao

[wispy wolf]

I've been working on something for a bit and I might be overthinking it and going down wrong paths.

Think of a simple racing game. But instead of being flat the track is round, like a tube, and you are racing down it's length. You don't really turn left or right, you just slide around the tube, always facing parallel to the tube.

Easy enough to make the track -- just spawn some meshes on a spline and bob's your uncle. Gravity will always be toward the center of the spline, so I'll do that myself, but that's pretty easy as well. I can get the tangent of the spline at any given location, so I can even orient the car parallel to the track easily enough.

The problem arises from me wanting to have some level of physics like collisions, jumping off ramps, etc. And that's where the whole thing starts to get tricky.

I don't want to write an entire novel about what I've tried. Any pointers?

[cosmic rain]

Sounds fine aside from gravity towards the center of the tube.🤔

[wispy wolf]

Gravity is the easy part, down is always toward the closest spline point and every tick I can add a force.

The part that it tricky is getting the car to follow the track without going nuts on inclines and turns. I can do that easily enough without physics, but I don't want to basically put all the physics stuff back in where I need it

[heady iris]

Project on plane.

Vector3.ProjectOnPlane will accomplish that

It's equivalent to projecting onto a vector, then subtracting the result from the original vector.

i.e. foo - Vector3.Project(foo, bar) equals Vector3.ProjectOnPlane(foo, bar)

[scarlet kindle]

Would it be easy to make a new base project with a correct render setting, and then just copy the old project files in? if a project is botched for working with specific settings?

In my case, I am unable to get 2D URP shadows working in my project, and I don't know how to properly change the settings. Starting a new 2D URP and the shadows work immediately for me, so it's definitely something project setting specific 😦

[scarlet kindle]

I tried making a new Render Asset, and removing all my old ones, reassigning in Graphics & Quality for project settings

[latent latch]

You can export your stuff between projects if you want to do it that way, but I can't expect there's much you need to change to get 2D shadows working.

probably some setting you're overlooking

Last time I played around with it, it was an experimental package, but I think it's now just included?

[scarlet kindle]

yep, it is definitely strange. setting it up is super fast and easy, as evidenced by my test on a new project....

i have no idea what setting is off in my current project that would stop shadows from being rendered properly

im gonna try cloning my proj into the new one... maybe that will work

[foggy maple]

I'm trying to like

[spring creek]

Me too

[foggy maple]

yes

[cosmic rain]

The problem with not expressing your thoughts in one message.

[foggy maple]

lmao me trying to figure out how to phrase it

[cosmic rain]

Then do that first. Then type. Lol

[strong geyser]

can yall help me tf does this mean 😭 (IM NEW TO UNITY SORRYYY LOL)

[foggy maple]

get the aspect ratio to be formatted something like "16x9" and not "1.77777..."
and I am going to deep into this I swear, is there any easy way to format the aspect ratio nicely

like some easy function to reduce the fraction to its lowest whole numbers because I couldn't find really anything googling it for unity and without including unity answers are like "install this package"

[cosmic rain]

The first error just tells you that you're including an asset that shouldn't be included in a build. The rest are probably the consequence of the first one.

[strong geyser]

gotchu

[cosmic rain]

Where do you get the 1.777 from?

[foggy maple]

its the 16x9 division

im just trying to get the aspect ratio to be user friendly

[cosmic rain]

Showing the resolution is pretty user friendly, but if it has to be in aspect ration, there must be some formula.🤔

[foggy maple]

yes im just sorting the aspect ratios

[spring creek]

I guess you'd have to find the lowest common denominator?
Something like this?
https://stackoverflow.com/questions/13569810/least-common-multiple

[foggy maple]

yea I think im just gonna have to incorporate my own function

I was just hoping there was like some built in function or easy algorithm

[hard viper]

I’m a bit confused as to why a little code block I have costs a lot of computation time. What I do is:

1. Get the corners of the bounds of a collider as vector2s
2. Convert the vector2 to vector2int using Grid WorldToCell to get cell coordinates.
3. Loop from the min and max on x and y to make an array of all cell coordinates that the square collider touches.

This doesn’t seem like it’d be expensive, but 50 calls per fixed update really hurts my frame rate, and I don’t understand why.

and each array is usually 4 entries large

[scarlet kindle]

The light just wasn't bright enough to make a shadow... LOL

or maybe my bulb was too dim

😄

[cosmic rain]

What do you see in the profiler?

[strong geyser]

I HAVE NO IDEA WHAT THE [Redacted] I DID BUT MY BUILD WORKED 🤑🤑🤑🔥

[hard viper]

Deep profiler says that that function is only getting called like 40-50 times a frame, but taking like 11-20 ms or some shit. It’s ridiculous. And when I look into the breakdown, it’s split evenly across a bunch of casts and vector operations

[cosmic rain]

Can you share the data?

[leaden ice]

Sounds like you're just doing a ton of stuff

[hard viper]

i can share tomorrow when I can get it again

each one call is maybe like 20 very basic vector operations

x40-50 per fixed frame

[leaden ice]

It's running 50x per frame and iterating over a lot of tiles?

That can add up

[hard viper]

total tiles usually is 4

each collider is a bit smaller than a grid square

[foggy maple]

found the solution but im gonna have to filter them anyways bc I get bs like 903x509
because something of a supported resolution is that aspect ratio

may just make a "Other" category and put resolutions that dont past the filter in there

[safe ether]

I get a null pointer exception when colliding bullet with enemy. I have a takedamage function in my health script, but it doesn't seem to be able to find the Image I have that is used for the healthbar when it is called from an OnTriggerEnter2D function in my bullet script. However, in my health script, I also have an Input.getKeyDown function that also runs the same TakeDamage() function. Using that, unity seems to be able to find my health bar and update it appropiately.

this is in my bullet script

this is in my health script.

Start does show the healthbar in the console

and healthamount updates appropiately

I am confused as to why the TakeDamage() function seems to see the healthamount variable, but not the image variable.

Both are declared: public Image healthbar;
public float healthAmount = 100;

[dusk apex]

Can you show the console error from the Unity editor?

[safe ether]

instead of catching it?

you just want the error

[dusk apex]

What line is 41 of the health script?

It's a message rather than an error so I'm guessing the health bar is null if not caught

[safe ether]

healthbar.fillAmount = healthAmount / 100;

is that the line is refering to

[dusk apex]

Where do you assign health bar?

[safe ether]

In unity? If thats what you mean then in the script for health

[dusk apex]

Usual answers would be the inspector or awake/start/misc-method

Okay

[safe ether]

I declared it at the top of health.cs if thats what u mean

[dusk apex]

Is this a spawned object?

[safe ether]

as in a clone?

the bullet is a clone when it hits the enemy

[dusk apex]

The object with the health isn't a spawned object though correct?

[safe ether]

no

[dusk apex]

So, there's a high possibility that the health bar you've referenced isn't one in the scene

[safe ether]

possibly

but my confusion comes from the fact that i can refrence that healthbar from inside the health script

[blazing smelt]

So I changed my project's build target to Android, and now my TMP text appears as pink squares (in the editor, it's fine in the build for some reason). Any idea what's happening here? I tried deleting the package cache and letting it all be re-downloaded (someone said refreshing that stuff should fix it), but that didn't work.
Thoughts?

[safe ether]

but cant seem to access it when outside of the script

but i can access the healthamt float just fine

[dusk apex]

Log the name of the object that was hurtcs Debug.Log($"{name} took {damage} damage");

[safe ether]

in my take damage func?

[dusk apex]

Yes

[cosmic rain]

Did you try deleting the library folder?

[blazing smelt]

no I didn't

[blazing smelt]

so I presume there'll just be a bit of a loading screen while it reinstalls everything?

[dusk apex]

Debug.Log($"{name} took {damage} damage", this);
Debug.Break();//Pauses the Editor```Edited

[cosmic rain]

The editor would need to reimport assets the next time you open it.

[safe ether]

you want me to include the this?

[dusk apex]

Of course - replacing the previous

[blazing smelt]

yeah that's what i figured

[safe ether]

i did comment out the healthbar.fillAmount = health / 100

[dusk apex]

After the game is paused, select the message and see which object is highlighted yellow from the hierarchy. Check the component on that object.

[blazing smelt]

cheers thanks mate

[dusk apex]

No need to, just log before that line

[safe ether]

like this correct?

[dusk apex]

.

[safe ether]

bullet clone is highlighted in yellow

when selecting the exception tho

[dusk apex]

Does it have the health bar reference in it's health bar setup?

Apparently it's expected to have health

[safe ether]

so your saying i should declare healthbar in the bullet script?

[dusk apex]

No, I'm saying whatever that's trying to lose health doesn't have the health bar reference. Since you're logging this in Health, it would show what's being damaged and pause the game for you to verify that it's got a proper reference.

I'm assuming you've done this logging in Damage and the object damage was the bullet.

Where the bullet had a health script and a health bar

But threw an error because the bar wasn't set up - obviously not correct.

The highlighted object should be an object with the health script

Show the damage method

[dusk apex]

Logging should be done here

[dusk apex]

Where the log should be this.

Verify that the highlighted object has an appropriate script and referenced field when paused.

I'm assuming the field is empty/missing/none etc

[safe ether]

on this log message correct?

[dusk apex]

Looks correct

Check it's component and field. The game should have paused after the break message.

[safe ether]

Okay, fixed it. The Health Script in my Enemy prefab didnt have the healthbarimage attached to in it's components

Thanks a lot man

This is my first time in unity so I probhably overlook a lot of things

[dusk apex]

A small stepping stone. You'll be fine 👍

[thin aurora]

Before you continue, please properly configure your !ide

[tawny elk]

💡 IDE Configuration

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

• Visual Studio (Installed via Unity Hub)
• Visual Studio (Installed manually)

• VS Code*
• JetBrains Rider
• Other/None

*VS Code's debugger plugin is unsupported.
We recommend using VS or Rider instead.

[thin aurora]

It is currently not properly configured and will not be able to provide the basic help an editor should give you

[pure portal]

public async void LoadTexture2(string fileName, string subFolderName, RawImage image)
    {
        Texture2D tex = null;
        UnityWebRequest www = new UnityWebRequest(GetStorageUrl() + subFolderName + "_" + fileName + "_persp.png");
        www.downloadHandler = new DownloadHandlerBuffer();
        await www.SendWebRequest();
        while (!www.isDone) await Task.Yield();
        if (www.result != UnityWebRequest.Result.Success)
        {
            Debug.Log(www.error);
        }
        else
        {
            // Show results as text
            Debug.Log(www.downloadHandler.text);

            // Or retrieve results as binary data
            byte[] results = www.downloadHandler.data;

            tex = new Texture2D(100, 100);
            tex.LoadImage(results);

            image.texture = tex;
        }
    }

Hello
can someone tell me if there is something wrong with my code?
this code is for downloading a png file from firebase storage as texture then set a raw image's texture with it
the code works until the end but the texture that is attached to the raw image does'nt show anything or blank

there is no problem with the link because i can view the image normally

and the debug result for the download handler text is like this

tried to use downloadhandlertexture previously instead of buffer but return a null instead

[cosmic rain]

Can you declare tex as a class field and check it in the inspector? I also wonder if you need to use .Apply after loading the data.

It could also because you're using obsolete API.
Try this instead:
https://docs.unity3d.com/ScriptReference/ImageConversion.LoadImage.html

[runic kindle]

can somebody help me? my map is slowly moving upwards

[pure portal]

if i use apply it become like this for firebase link

but for another link it loaded normally

oh ok now i just found the problem

what a silly mistake
for firebase storage link
i need to add "?alt=media" at the end of the link for it to be working

damn

at least i can sleep peacefully now

[olive field]

Hello everyone, i am encountering this error in Unity 2021.3.27. It always appears 11-times after a Domain Reload
Do you guys know how to fix it ? if it can be fixed.
I found that somebody recommended disabling lights in scene view, but thats not working for me.

[void stratus]

how can i assign X amount of variables at once ?

using random.range

[wraith vector]

What am I doing wrong?

public class PlayerSonar : NetworkBehaviour
{
[SerializeField]
    Player player;

    public List<Transform> enemyList = new List<Transform>();
    private void Awake()
    {
        player = GetComponentInParent<Player>();
    }
    private void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Player") || other.CompareTag("Enemy"))
        {
            player.enemyList.Add(other.transform.parent.transform);
            enemyList.Add(other.transform.parent.transform);
        }
    }

I can see enemyList being update in current script but not on Player script

[cosmic rain]

Loop

[cosmic rain]

That just says that some handle was not released properly before domain reload. Maybe looking at other errors/warnings/messages can give a clue.🤔

[cosmic rain]

Something must be modifying the list after you add to it.🤔

Or you're looking at the wrong object.

[void stratus]

how

[wraith vector]

I have only one Player object

[cosmic rain]

Loop an array of floats/ints and assign a random value.

[cosmic rain]

Then it's the other option.
Anyways, stepping with a debugger, should reveal some more clues.

[wraith vector]

I am not sure how to debug since the script is as above and the Player script is just this:

public class Player : NetworkBehaviour
{   

    public List<Transform> enemyList = new List<Transform>();
}```

[cosmic rain]

With a breakpoint, you can check the fields/properties of the referenced object.

But here's one thing to check first: is player a reference to a prefab or an object in the scene?

Also, networking might be making things a lot more complicated...

[wraith vector]

prefab that is created when client join the server

[cosmic rain]

So it's not the same object that you're looking at

You're looking at the instance of this prefab in the scene.

[wraith vector]

but when press the Inspector script, I can see the parent object being selected

[cosmic rain]

Also, "prefab that is created" - is incorrect. An instance of the prefab is being created. Not the prefab itself.

[cosmic rain]

Take a screenshot.

Ah, wait. You said it's a parent?

[wraith vector]

yes

since:

[SerializeField]
    Player player;

    public List<Transform> enemyList = new List<Transform>();
    private void Awake()
    {
        player = GetComponentInParent<Player>();
    }```

[restive ice]

it is updating the list. you just added your Player script twice.

[wraith vector]

man! TY!

I was getting crazy lol

[restive ice]

I blindly dove into your code too, but it seemed like it should be working. Sometimes it's good to take a step back x)

[wraith vector]

indeed, ty!

[restive ice]

I have this blend tree which I use to cycle between random 'bored' animations. I control it using a StateMachineBehaviour script.
It it possible to get the number of motions in this blendtree without directly setting the data as an inspector value? If I were to add an animation cycle to this tree, but would forget to change the inspector value, the animation would never play. I'd preffer to set it programatically but getting to the blendtree seems like a bit of a challenge.

[cosmic rain]

It's not impossible in the editor. Look at the animator API in the editor namespace. You can get the specific state and the blend tree info.

[marsh mesa]

Heya! Im trying to do a certain action in OnTriggerEnter2D, but only when the collission is happening with a certain layermask, but i cant quite figure out how?

I tried to do this

basically comparing the layermask, and the object's layer

but it doesnt exactly work, probably because im comparing a single layer to a layermask

[knotty sun]

Here is a little helper struct I made.
The method MaskHasId is the one you need

[marsh mesa]

Omg, thanks!

[copper rose]

i have an issue using the tank example from unity with scriptable. Project is working, but for example, i have an scriptable "decision" that search for the player and return true if i can see the player and change state to chase, the problem is when there is alot of enemies and all of them using same scriptable, when one enemy in player range return true, its true also for other enemies, so each enemie have to use a different scriptable "decision" or "action"?

so, an state cannot share actions or decision made it with scriptable right?

[knotty sun]

probably the easiest solution is to use ScriptableObject.CreateInstance to create a local instance of your SO, then write a Clone method to copy the data from the SO Asset into the local instance
That way each tank has their own SO instance to work with

[latent latch]

Usually you use SOs as immutable data and unload it onto an identical class and instead create instances of those, otherwise you'll have to be careful not to write to the original SO data when creating instances of it.

[knotty sun]

not going to happen, an instance of an SO is not an asset until it is Created in the Editor. In runtime this is not even possible

[latent latch]

I recall some funky stuff happening when writing to SOs at runtime, which usually required restarting the editor to serialize data again. What's the difference between using createinstances and instantiating them?

[knotty sun]

To start with you cannot instantiate a SO, like a MonoBehaviour you cannot use new().
writing to SO's at runtime will not persist data (outside of Play Mode in the Editor) so you have to be careful.
This is why I made
https://assetstore.unity.com/packages/tools/utilities/scriptableobject-pro-218340
which handles making SO's persistent at runtime and also allows runtime created SO's to be persistent

[latent latch]

Oh, huh. I thought you could instantiate them. I remember reading some argument about which was better to use but that was earlier on when I've not dabbled with them much.

[knotty sun]

no, only CreateInstance is allowed

[late lion]

Instantiate can clone any UnityEngine.Object, including ScriptableObject. But if you want to create one from scratch, CreateInstance is your only option.

[somber nacelle]

you can use Instantiate for scriptable objects. the catch for that is that you already need an instance though because it clones it

[latent latch]

ok so maybe that was my problem

[knotty sun]

Good point, I had not thought about instantiate, question is is that a deep or shallow copy?

[latent latch]

but if createinstance makes an identical asset, that makes much more sense to use

[late lion]

Instantiate is a shallow copy. References aren't cloned, though serialized classes are, since Unity's serializer treats those as value types. I'm not sure how [SerializeReference] fields are copied.

[knotty sun]

Shallow copy would work for the question asked as long as he is only using primitives

Be interesting to see if an Instantiated SO is still linked to the original Asset though

because by using CreateInstance you are breaking that link

[knotty sun]

Sorry, I read that as instancing rather than instantiating

@copper rose I think for you this should work

public MySO originalSO; // Set in inspector
MySO localSO;
...
void Awake() {
localSO = Instantiate(originalSO);
}

There after just use localSO

[rocky helm]

Every time BuyTroop is called from any button, buySlot is equal to buySlots.Length, causing an out of bounds error. This is probably a dumb oversight by me, but I really don't know what it is.

    public void BuyTroop(int buySlot){
        Debug.Log(buySlot); //Always outputs buySlots.Length
        NPCObject npc = buySlotTroops[buySlot]; //This has the same length as buySlots, so this is erroring
        if(npc.cost > money) return;
        //...
    }

    private void BuySlotButtonsSetup(){
        for(int i = 0; i < buySlots.Length; i++){
            //buySlots[i].GetComponent<Button>().onClick.AddListener(delegate{BuyTroop(i);}); //Suggested answer
            buySlots[i].GetComponent<Button>().onClick.AddListener(() => {BuyTroop(i);}); //Suggested answer
        }
    }

None of the buttons have onClicked on anything in the editor, so nothing should be interfering with this, But I did try with giving each of the buttons an onClicked in the editor with "No Function", but surprise surprise, that didn't work. What works tho is if I set the onClicked in the editor to call BuyTroop(n);
The "Suggested answers" mean answers to what I am trying to achieve in https://discussions.unity.com/t/button-onclick-addlistener-how-to-pass-parameter-or-get-which-button-was-clicked-in-handler-method/179151/2

[knotty sun]

try

private void BuySlotButtonsSetup(){
        for(int i = 0; i < buySlots.Length; i++){
            //buySlots[i].GetComponent<Button>().onClick.AddListener(delegate{BuyTroop(i);}); //Suggested answer
            int x = i;
            buySlots[i].GetComponent<Button>().onClick.AddListener(() => {BuyTroop(x);}); //Suggested answer
        }
    }

[rocky helm]

That.. works

But I am very confused

Thanks tho

[knotty sun]

The problem is that
BuyTroop(i)
is evaluated at call time
and at call time i == buySlots.Length

by using x it creates a unique variable for each call

[quartz folio]

If you really want to know https://unity.huh.how/programming/specifics/anonymous-methods-and-closures

[frigid bone]

Ill just quietly delete that in shame 🤫

[static matrix]

if (HasReadScripts[d.HasWonKey])
            {

            }

if I haven't actually set HasReadScripts[d.HasWonKey] to anything, will it throw an effor or just presume it false

(HasReadScripts is a Dictionary<string, bool>)

[knotty sun]

https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.dictionary-2.item?view=net-7.0#system-collections-generic-dictionary-2-item(-0)

[static matrix]

thanks

ok so I do need to set it cool

[knotty sun]

If you just want to check use the ContainsKey method

[static matrix]

yeah

[static matrix]

how can I check if an object is a certain class?
Like if I need to iterate through a list of Item can I check if the current item is a Drink that derives from Item

[leaden ice]

foreach (Item item in allitems) {
  if (item is Drink d) {
    d.Spill();
  }
}```

I would say in general it's not recommended to do this if you can avoid it though

[heady iris]

yeah, it indicates you have a design problem

[static matrix]

oh noees

[copper rose]

Thanks

[heady iris]

Although, this does feel unavoidable when making inventories.

[static matrix]

yeah

[heady iris]

you have a bag of Item and you also need to do specific things with specific kinds of items

I guess you can keep separate lists of each kind of item.

[leaden ice]

ideally you do something more like:

foreach (Item item in allitems) {
  item.Use();
}```
And let the item itself decide what "Use" does through polymorphism.

[static matrix]

well yeah I do already do that
however I need to keep track of whether or not the player has read a book

[copper rose]

I will test this later

[heady iris]

sounds like the book's job.

[leaden ice]

in the "Use" function for the book, set the "Player has read a book" flag

[static matrix]

you underestimate my ability to poorly make inventories

[copper rose]

But right now I don’t know why could be better to use so for my states of each enemy

[heady iris]

well, here's a chance to improve the system (:

[static matrix]

yeah

rn I have a dict of strings containing the book's name and whether or not the player has read it

[leaden ice]

yeah why not set this in the book class

[static matrix]

ig on the book's end I can check if the player has read it

im stupid yeah

 if (!playerStats.GetComponent<Inventory>().HasReadScripts.ContainsKey(HasWonKey))
        {
            playerStats.GetComponent<Inventory>().HasReadScripts[HasWonKey] = false;
        }
        else
        {
            if (playerStats.GetComponent<Inventory>().HasReadScripts[HasWonKey])
            {
                HasWon = true;
            }
        }

(ignore the use of getcomponent, ill fix it later)

[thick socket]

public enum BulletTypes
{
    FireBall=0 
}```

is there a way to rename Fireball without destroying every SO that has a SerializedField of BulletTypes?

noticed when I renamed enum "items" in the past it basically "wiped" all my SOs

[static matrix]

in visual studio you can highlight it and hit ctrl-r-r and then that renames all instances
but I might not know what an SO is and this wont work at all

[heady iris]

Enums are serialized by value.

so if you have FireBall selected in a dropdown, Unity is serializing 0

if you update this to

public enum BulletTypes
{
  IceBall = 0
}

then every place that used to say "FireBall" will now say "IceBall"

because that's now the name for the 0 value

[static matrix]

really odd thing, I can't un-hide these

idk why

I can only do the global unhide

[thick socket]

awesome thanks...so when I dont have the = 0 part and just have names is when it "breaks"

[heady iris]

In this case, it still wouldn't break

By default, enum values are numbered starting from zero

public enum BulletTypes
{
  Foo = 0,
  Bar = 1,
  Baz = 2
}

This is equivalent to not specifying the values.

[thick socket]

public enum BulletTypes
{
    FireBall,
ball1,
ball2
}```

in the past I've renamed like ball2->test

[leaden ice]

it's more about when the name and the value become decoupled. Changing:

public enum BulletTypes
{
    FireBall=0,
    IceBall=1
}``` to
```cs
public enum BulletTypes
{
    FireBall,
    IceBall
}```
wouldn't break it but:
```cs
public enum BulletTypes
{
    MeatBall,
    FireBall,
    IceBall
}``` would break it.

[heady iris]

you could avoid that by doing

public enum BulletTypes
{
    MeatBall = 2,
    FireBall = 0,
    IceBall = 1
}

[leaden ice]

because now FireBall and IceBall have different values than they did before

[heady iris]

note how the values aren't changing, since we gave explicit values

This is also incredibly aesthetically displeasing

I hate it

[thick socket]

gotcha

[leaden ice]

welll a normal person would add MeatBall at the end

[heady iris]

it's when you start removing old stuff that it gets bad

[leaden ice]

it's also clearly the most powerful bullet type and should have the highest value 😉

[thick socket]

public enum BulletTypes
{
    MeatBall,
    FireBall,
    IceBall
}```
->
```cs
public enum BulletTypes
{
    MeatBall,
    FireBall2,
    IceBall
}```
in this case would "renaming" fireball ->fireball2 work?

[leaden ice]

It would work fine assuming your goal is to change all existing "fireball"s to fireball2s

[thick socket]

sweet thanks

[late lion]

This is an option.

public enum BulletTypes
{
    [Obsolete] MeatBall,
    FireBall,
    IceBall
}

[static matrix]

if there are scripts in a prefab, does the prefab run them?

[spring creek]

When it is instantiated, yes.

[static matrix]

but does the non-instantiated one run them

what am i saying, of course it doesn't

[spring creek]

That's why I clarified when instantiated. Before that, no.

There IS code to make things run in the editor. But without explicitly specifying, no it does not

[heady iris]

Prefabs are in a kind of weird state. IIRC they have no parent, yet activeInHierarchy is always false

[static matrix]

ok I have solved the issue: I'm just crazy

[thick socket]

public class Bullet : MonoBehaviour
{
    [SerializeField] protected float speed = 15f;
    int dmg = 3;
    string shooterTag = "";
    IObjectPool<Bullet> pool;
    public EffectTypes effectType;
    public BulletTypes bulletType;
    Rigidbody2D _rb;

    private void Start()
    {
        SceneManager.sceneLoaded += SceneChange;
        _rb = gameObject.GetComponent<Rigidbody2D>();
    }
....

if(_rb == null)
        {
            Debug.Log("rb null");
        }```

[static matrix]

while im here I'll just doublecheck

 public float Rarity;
    // Start is called before the first frame update
    void Start()
    {

        
        var rand = Random.Range(0, maxInclusive:100.1f);
        if(rand < Rarity)
        {
            Destroy(gameObject);
        }
      
    }

this works reasonably well for a structure rarity script right?

[thick socket]

why is it throwing rb=null?

[heady iris]

Show us the entire script, Hawk.

i realized that was ambiguous

:p

[static matrix]

its cool

[thick socket]

its very long so tried to just give important piece 😄

[heady iris]

i can handle it

[static matrix]

use pastebin or something like that, to avoid filling the chat

[heady iris]

There may be important context.

Do you instantiate the bullet and then instantly fire it?

Start runs before the first Update

which happens on the next frame

[rigid island]

hm?
var chance = Random.value; if(chance <= 0.5f) // 50% chance

[heady iris]

Do your work in Awake

Awake runs instantly after instantiation (before the method returns) as long as the component is on an active gameobject and is enabled

[static matrix]

didn't know that was a thing

[thick socket]

gotcha

another issue is probably I added in all the fixedupdate code

[heady iris]

you'd just want to use 100f, not 100.1f, if you were going to have a rarity value be between 0 and 100

[thick socket]

but that shouldn't run until "fire" is called

[static matrix]

cool
maxexclusive threw me off

[heady iris]

Random.Range is inclusive with floats. It's a bit weird.

it's maxInclusive

[rigid island]

value goes 0-1

[static matrix]

yeah

[rigid island]

same as 0-100

[static matrix]

I have no idea why they thought it should default to exclusive

[heady iris]

exclusive is how it works for integers

which is very useful for indexing a list

[static matrix]

true

[heady iris]

but again, it's always inclusive with floats

you just used a named parameter there

[static matrix]

ah

[heady iris]

I'd prefer it to be exclusive

if you use < for a chance, then 100% (1) can still fail

and if you use <=, then 0% (0) can succeed

[static matrix]

good idea

ill change it

[heady iris]

System.Random.NextSingle() is exclusive

[thick socket]

public class Bullet : MonoBehaviour
{
    [SerializeField] protected float speed = 15f;
    int dmg = 3;
    string shooterTag = "";
    IObjectPool<Bullet> pool;
    public EffectTypes effectType;
    public BulletTypes bulletType;
    Rigidbody2D _rb;
    bool fired=false;
public class WeaponAttack
{
    [SerializeField] private Rigidbody2D FireballPrefab;
    BulletTypes bulletTypes;
    MyWeaponType weaponType;
    AttackType attackType;
    Fighter fighter;
    public WeaponAttack(MyWeaponType weaponType, AttackType attackType, Fighter fighter = null)
    {
        this.weaponType = weaponType;
        this.attackType = attackType;
        this.fighter = fighter;
        if(FireballPrefab != null)
        {
            bulletTypes = FireballPrefab.GetComponent<Bullet>().bulletType;
        }
    }```

Debug.Log(bulletTypes);

this should be outputting "Curving Away" right?

[heady iris]

well, I don't know where you're actually logging that

if you log it after calling WeaponAttack, then probably

[thick socket]

Its being logged inside of WeaponAttack when the weapon fires

[heady iris]

not in that code you shared.

please don't try to trim things down for us. just share the entire script.

it's a lot harder to help you when you've removed (very important!) parts of the code

[thick socket]

which is called from DoAttacksAndTimer() inside of

which has this bullet serialized

inside this object

the top WeaponAttack code is debugging "Straight"

[heady iris]

oh, I see what you're doing

that's a constructor.

constructors are run before serialized values are restored

[thick socket]

Running debug in the window shows this

not sure how its not getting my Fireball Prefab at all

since its serialized here

oh...when I call

        weaponAttack = new(weaponType, attackType, enemy);

that wipes out my serialized prefab doesnt it

[heady iris]

that's creating an entirely new instance of your WeaponAttack class

it's not even wiping it out

the reference was never there at all

[thick socket]

dang, thanks 😄

Its always something dumb I do

I need to serialize that and pass it through constructor instead

[copper rose]

i never understand when a class can be serialze, i use it for private values to assign throw inspector, but a class serializable is when dont use update and is like an scritable object to store methods?

maybe this is for beginner lol

[thick socket]

if you make a class and put like Serializable on the top you can serialize it

[heady iris]

having an Update method has nothing to do with being serializable

A class is serializable if it can be converted to data and recreated from data.

[copper rose]

like an scriptableobject?

[heady iris]

yes

[copper rose]

ok thanks, i never use this in my clases now i think i understand

[heady iris]

I am a little rusty on the exact terms.

Unity handles UnityEngine.Object-derived classes specially. They aren't serialized in-place. You just drag in a reference to the object from somewhere else

If you have a regular class (not derived from MonoBehaviour, ScriptableObject, etc.) that's marked as serializable, it'll get serialized in-place in the inspector

so you just see the values right there

[copper rose]

ok thanks so much for explain this

[wraith vector]

My player object has a sphere collider of radius 300.
How can I make that only other player object that are within that sphere will receive NetworkVariables? (for example HP of player 1 will only be sent to Player 2 when they are close)

[rocky helm]

You could check whether player 2 is close enough to player 1 with (player1.position-player2.position).sqrMagnitude < 300*300

or with (player1.position-player2.position).magnitude < 300 if you want

[heady iris]

so you're trying to implement relevancy?

https://docs-multiplayer.unity3d.com/netcode/1.0.0/reference/glossary/relevancy/

[wraith vector]

but how to actually hide player 2 from player 1?

[heady iris]

(just some terms that might be useful to know)

[wraith vector]

ah, ty

[heady iris]

please do not spam

[rigid island]

cute but there is no offtopic

[verbal cliff]

    {
        if (button.GetComponent<TMP_Text>().text == DesiredWord.text)
        {
            score++;
            ScoreDisplay.text = score.ToString();
        }

        NextQuestion();

    }```

``` foreach (Button button in Options) 
        {
            button.onClick.AddListener(() => AnswerCheck(button));
        }```

causes null exception. assumably having an anonymous lambda here is bad and what causes the issues. is there another efficent way to pass button through into say TaskOnClick() or some other method?

(personal project)

[turbid salmon]

omg unity staff i'm a big fan with unity staffs

[heady iris]

Capturing the foreach variable should be fine.

You only get bitten if the variable survives from iteration to iteration

like capturing i in a for (int i = 0; i < whatever; ++i) loop

Where is the NRE coming from?

(don't buttons usually have the text as a child of the button?)

yeah, that's probably your issue

[verbal cliff]

oh yeah! i forgot to use "GetComponentInChildren" smh

[heady iris]

I would create an "Answer Button" component that holds the references for you

[verbal cliff]

thank you <3

[heady iris]

no prob

[heady iris]

GetComponentInChildren has burned me in the past when I started adding more components to a hierarchy

[frozen dock]

So I need a little help. My brain does not brain.
I would like to calculate the rotation of the rigidbody on which the camera looks it needs to look to the red cross.

The blue arrow is the direction vector from the camera to the humanoid:

            Vector3 cameraToTargetDirection = unitMainManager.transform.position - mainCamera.transform.position;
            cameraToTargetDirection.y = 0;
            return cameraToTargetDirection.normalized;

The red cross is the input from the player in this case Vector2(1,0).

Would be nice if someone could help briefly.

This is the code that i got atm.

        public void RotateUnitPlayer(float rotationSpeed, Vector3 cameraLookAtDirectionVector)
        {
            if (!unitLocomotionHandler.AcceptRotationInput || unitLocomotionHandler.MovementInput.magnitude == 0)
            {
                return;
            }

            // Calculate the target rotation based on the movement input and the camera look-at direction vector
            Vector3 movementInput = new Vector3(unitLocomotionHandler.MovementInput.x, 0, unitLocomotionHandler.MovementInput.y);
            Quaternion targetRotation = Quaternion.LookRotation(Vector3.Scale(cameraLookAtDirectionVector, movementInput));

            // Smoothly interpolate between the current rotation and the target rotation
            Quaternion newRotation = Quaternion.Slerp(rigidbody.rotation, targetRotation, rotationSpeed * Time.deltaTime);
            rigidbody.MoveRotation(newRotation);
        }

[heady iris]

If you need to turn player input into a camera-relative direction, just do this

Vector2 playerInput = ...
Vector3 moveInput = new Vector3(playerInput.x, 0, playerInput.y);
moveInput = Camera.main.transform.TransformDirection(moveInput);

Now you have a direction from the perspective of the camera

You will probably then want to throw out the vertical component

[thick socket]

Intial speed is

_rb.velocity = transform.right * speed * 0.5f;

Is there a good way to speed up each frame in fixedupdate? running into a bit of issues because I need it to always move "transform.right"

[heady iris]

float length = moveInput.magnitude;
moveInput = Vector3.ProjectOnPlane(moveInput, Vector3.up);
moveInput = moveInput.normalized * length;

[frozen dock]

ahhh omg let me test it quick

[heady iris]

We need to restore the original length of the vector after doing this

since we'll lose some magnitude

Then, you can just do Quaternion.LookRotation(moveInput) to get a rotation

[heady iris]

This is only necessary if the camera is pointing up or down. But, cameras tend to do that!

[heady iris]

so you want to accelerate?

store the current speed and add to it every fixed update

speed += Time.deltaTime * acceleration;
_rb.velocity = transform.right * speed;

Time.deltaTime and Time.fixedDeltaTime are equal while in FixedUpdate, btw

[frozen dock]

thank you very very much!

[heady iris]

np (:

I use this for all of my games now

[frozen dock]

do you got ko-fi or so?

[heady iris]

i did but i linked it to a nsfw twitter account and they got mad

lmao

thanks for offering, though :p

[thick socket]

gotcha, I was thinking of trying to do something like this 😄

[heady iris]

Using the methods on Transform can make your life a lot easier

[frozen dock]

ah damn - wanted to show some grattitude

[thick socket]

 float currentSpeed = _rb.velocity.magnitude;
_rb.velocity = transform.right * currentSpeed *speedIncreaseRate * Time.deltaTime;

[heady iris]

this would be expoenntial

well, it'd probably go to zero, because you're multiplied in Time.deltaTime

[thick socket]

yeah it just sat and did nothing 😄

[heady iris]

this multiplies the current speed by a speed increase rate, then divides it by the framerate

very wonky

If you want the speed to increase at a constant rate, add a constant amount to it each fixed update

[thick socket]

gotcha thanks, your way is much easier to use and configure 😄

[heady iris]

(this would either go to zero or go to infinity very quickly)

depending on whether speedIncreaseRate was below or above 50, given the default physics timestep of 0.02

[thick socket]

oh thats so weird

most of my projectiles hit the ground and die like they are supposed to

but 1 random one goes through the ground before "dying"

[heady iris]

If they're moving very quickly and the ground is very thin, they could be missing the ground entirely

[thick socket]

hmm true

I have a tilemap collider and composite collider for the sides and floor

Collision Detection is set to Continous though so wouldnt expect the speed to matter

[umbral radish]

Hey! I have a question. Are the M1 iMacs good for Game Dev?

[heady iris]

you should ask this in #💻┃unity-talk

[thick socket]

        StartCoroutine(DestroyAfterDelay(5f));

is this the correct way to "stop" it if I need to?

StopCoroutine(DestroyAfterDelay(5f));

[quartz folio]

No

[heady iris]

You must store the Coroutine that's returned by StartCoroutine.

[quartz folio]

https://unity.huh.how/programming/coroutines/stopcoroutine

[thick socket]

thanks

could I have just done "StopAllCoroutines" instead?

[quartz folio]

That is an option, sure

[leaden ice]

if you wanted to stop all coroutines

[heady iris]

(on that MonoBehaviour)

StartCoroutine is a method on MonoBehaviour that takes an IEnumerator. The MonoBehaviour throws that enumerator into a big list of things it's running.

So passing StopCoroutine the result of DestroyAfterDelay(5f) wouldn't do anything, because it's never seen that particular enumerator

you can do this

var myEnumerator = DestroyAfterDelay(5f);
StartCoroutine(myEnumerator);
StopCoroutine(myEnumerator);

but I don't see a particular reason to do that

storing the Coroutine is easier

[celest turtle]

Hello! I'm trying to do this kind of thing in a 3D bomberman prototype cloning and i'm really struggling to get this right.

I've researched some ways to do it and the best result I have is using rigidbody velocity and applying it (using the target as a parameters), the problem is, using physics you can't really control the velocity of the bomb throw by time and I think it's one of crucial things to get a good game feel.

Do anyone have a suggestion on what I could do to achieve this kind of behaviour?

[heady iris]

I do not understand what you're trying to do

Are you talking about making the bomb fly further if you're moving in the direction you throw it?

[thick socket]

using physics you can't really control the velocity of the bomb throw by time
Pretty sure you can

[heady iris]

can't really control the velocity of the bomb throw by time

I don't understand this

[steady moat]

You do not use Physics for that.

[thick socket]

if he wants the player to be able to run into the bomb to push it he might want physics

[steady moat]

Not for the movement. You would just activate a collider at the right moment.

[thick socket]

I dont follow 😄

to me that would be a rb/physics thing to do?

[steady moat]

You do not need physics as a rigidbody for the movement.

[heady iris]

I still don't know what the question actually is.

[thick socket]

If he wants to collider and push the bomb that would require physics?

[thick socket]

same 😄

InvalidOperationException: Trying to release an object that has already been released to the pool.
UnityEngine.Pool.ObjectPool`1[T].Release (T element) (at <f7bcd9bfa40c4821acdda68a85850616>:0)
Bullet.OnTriggerEnter2D (UnityEngine.Collider2D collision) (at Assets/Scripts/interactable/Bullet.cs:38)

Is there a way to fix this error by checking if its already been released?

idk how it could happen anyway

but it annoys me

[rigid island]

funny .. was working on the same type of game but in 3D lol (bad lag my laptop sucks rn)

[thick socket]

void OnTriggerEnter2D(Collider2D collision)
    {
        var tag = collision.transform.tag;
        if ((tag == "Fighter" || tag == "Player") && tag != shooterTag)
        {
            Fighter colFighter = collision.GetComponent<Fighter>();
            colFighter.Damage(dmg);
            //Debug.Log("Pool Release called");
            fired = false;
            StopDestroyAfterDelay();
            pool.Release(this);
        }
        else if (tag == "Wall" || tag == "Floor")
        {
            fired = false;
            StopDestroyAfterDelay();
            pool.Release(this);
        }
    }

[steady moat]

Not necessary. Also, I would not use physics in such environment.

[thick socket]

line38 is the first pool.Release(this)

[thick socket]

now Im wondering if I should be using physics 😄

[celest turtle]

😄

[thick socket]

Ive just got a 2d platformer runner/gunner type game

[celest turtle]

how?

[celest turtle]

yes after like 6 hours i figured it out

[thick socket]

speed += Time.deltaTime * speedIncreaseRate;
        _rb.velocity = transform.right * speed;```

that changed my bullets velocity

[celest turtle]

the thing is

i want to reach a specific target

a grid cell

if I change the velocity

i will miss the target

[thick socket]

I mean...once it hits the cell put the velocity to 0?

[steady moat]

You can calculate the required velocity to get to a target though.

[celest turtle]

but the movement is a parabola

[simple egret]

If you don't predict the velocity you need, you will miss, not if you change the velocity

[celest turtle]

with fixed height

in bomberman, the bomb always go in the same speed/height and land on the same spot (i think 4 grids away or 3)

[simple egret]

You need calculations that will apply a specific velocity so the bomb will land 1-2-3-... cells away

[steady moat]

For 3D:

    private void SolveForVelocity(Vector3 startPosition, Vector3 endPosition, float gravity, float angle, out Vector3 velocity)
    {
        //x = v * t

        //x = v * cos(a) * t
        //h = v * sin(a) * t + 1 / 2 * g * t ^ 2

        //t = x / (cos(a) * v)
        //h = v * sin(a) * (x / (cos(a) * v)) + 1 / 2 * g * (x / (cos(a) * v)) ^ 2
        //h = v * sin(a) * (x / (cos(a) * v)) + 1 / 2 * g * (x / (cos(a) * v)) * (x / (cos(a) * v))
        //h = v * sin(a) * (x / (cos(a) * v)) + 1 / 2 * g * x ^ 2 / (cos(a) ^ 2 * v ^ 2)
        //h = sin(a) * (x / cos(a)) + 1 / 2 * g * x ^ 2 / (cos(a) ^ 2 * v ^ 2)
        //h - sin(a) * (x / cos(a)) = 1 / 2 * g * x ^ 2 / (cos(a) ^ 2 * v ^ 2)
        //1 / 2 * g * x ^ 2 / (h - sin(a) * (x / cos(a))) = cos(a) ^ 2 * v ^ 2
        //1 / 2 * g * x ^ 2 / (h - sin(a) * (x / cos(a))) / cos(a) ^ 2 = v ^ 2

        Vector3 delta = endPosition - startPosition;

        float x = Mathf.Sqrt(delta.x * delta.x + delta.z * delta.z);
        float x2 = x * x;
        float h = delta.y;
        float g = gravity;
        float sin = Mathf.Sin(Mathf.Deg2Rad * angle);
        float sin2 = sin * sin;
        float cos = Mathf.Cos(Mathf.Deg2Rad * angle);
        float cos2 = cos * cos;

        float r = Mathf.Sqrt((0.5f * g * x2) / (h * cos2 - sin * x * cos));

        Vector2 planeDirection = new Vector3(Mathf.Cos(Mathf.Deg2Rad * angle), Mathf.Sin(Mathf.Deg2Rad * angle));
        Vector3 direction = new Vector3(delta.x, 0, delta.z).normalized * planeDirection.x + Vector3.up * planeDirection.y;
        velocity = direction * r;
    }

[heady iris]

you can also do it non-physically

and just make the bomb fly along a curve

[steady moat]

Which would be probably the best and easiest

[celest turtle]

ty i will try it later when i finish my job

[celest turtle]

yes actually

this is what I want to do now

so i can probably control the movement duration

and make things more on control

and also avoid akward behaviours

[thick socket]

now Im confused on when to use rb/physics and when not to 😄

[celest turtle]

i think you only use physics when you will need

in this case, i don't think its necessary because I want the thing to move from A to B in a curve

it doesnt really matter how

[steady moat]

It depends on what you do and what you want.

[thick socket]

it feels weird to mix physics and non-physics objects to me

[thick socket]

take like a 2d platformer game where you shoot bullets at an enemy

gravity on enemies is nice

¯_(ツ)_/¯

[steady moat]

You do not need to have your RB as simulated though.

[celest turtle]

yep, but the bullets doesnt need to be physics based

they could be a simple translate

[steady moat]

In fact, most of the time only non important object are simulated. The rest would be Kinematic.

[thick socket]

why?

wouldn't have like...gravity be nice?

[steady moat]

You do it yourself.

[thick socket]

aka just change from body type dynamic->kinematic?

[heady iris]

Rigidbodies are necessary to get collision events

For non-physical objects, you can use a kinematic rigidbody

[thick socket]

can you still use like rb.velocity with a kinematic rb?

or do you just have to use translate

[heady iris]

You have to move the rigidbody with MovePosition

Directly moving the transform will mess up the physics events.

[bold pawn]

https://docs.unity3d.com/ScriptReference/Rigidbody-isKinematic.html

[hard viper]

i think 2D is unique in kinematic RBs being able to use velocity

[thick socket]

so I would have to calculate how far over I would want to move and make sure no collisions each frame instead of just setting velocity to move?

If isKinematic is enabled, Forces, collisions or joints will not affect the rigidbody anymore

[hard viper]

but at least for 3D, kinematic RBs ignore velocity

velocity and forces aren’t a thing for kinematic RBs

[bold pawn]

That's for 3d here is 2d https://docs.unity3d.com/ScriptReference/Rigidbody2D-isKinematic.html

[hard viper]

the whole point of a kinematic RB is: you tell it where to go and when, and nothing will stop it from going from point A to point B

[thick socket]

so I would just have to program my own collision detection, calculate the position each frame for everything to move and create my own gravity essentially

[hard viper]

yeah

[thick socket]

yikes

[rigid island]

colliders can

[hard viper]

that is kind of the point of a kinematic RB tho

[steady moat]

The docs has an example:

For example, a human character is usually not implemented using physics but may sometimes be thrown through the air and collide with objects as the result of an impact or explosion.

[thick socket]

the doc also says this

If this property is set to true then the rigidbody will stop reacting to collisions and applied forces

[rigid island]

kinematic can absolutely be stopped tho

[thick socket]

meaning it just ignores colliders no?

thus I need to program my own collidiers to work?

[rigid island]

Translation is the one that goes A to B without caring anything

[hard viper]

it ignores forces from colliders

kinetic RBs can still hit triggers, and let other things hit them

[rigid island]

it ignores external forces but affects others but still collides with colliders

[thick socket]

MovePosition still means you can't go through colliders though?

but translation would let you

[heady iris]

MovePosition will model the object actually moving from point A to point B

[heady iris]

there are just enough differences between the two physics systems to get ya

[hard viper]

so imagine mario trying to jump onto a platform that goes in a circle. And the platform goes in that circle come hell or high water, it does not give a fuck about what is in it’s way; it is going in that circle.
Classic case where the platform should be a kinetic RB

[rigid island]

thats why when the character doesnt need physics its useful to use kinematic to still get collisions, IE a game where you're like the pong bat

[thick socket]

I guess a good question...when should you be using a Dynamic RB

[hard viper]

dynamic rigidbodies take in gravity, friction, collision forces, etc

[thick socket]

if you want things to run into each other and bounce off?

[rigid island]

when you want physics pretty much yea

[thick socket]

sounds like you should be using kinematic and just programming your own gravity

[heady iris]

a rigidbody participates in the physics simulation

[thick socket]

which I would have considered to be physics

[heady iris]

a kinematic rigidbody does not respect physics forces

[hard viper]

let’s say I want mario to chuck a penguin off a mountain, and I want that penguin to hit every rock, and deflect and slide, and have a nice parabolic arc as it falls into the void. Penguin should be a dynamic RB

[heady iris]

a non-kinematic rigidbody does respect physics forces

(i only do 3D, so i'm not familiar with the...static/dynamic/kinematic options in 2D?)

[thick socket]

sounds like you should be able to get the same arc just by making a gravity class with a kinematic yeah?

[hard viper]

kinematic RBs exist to only do as they are told

[heady iris]

I guess static rigidbodies aren't expected to ever move?

[hard viper]

yeah. but you’d have to program it

not hard to do. but you’d have to do it

and it’s a lot easier to just make it dynamic, and then it will come with friction, gravity, colliding with walls etc…

[thick socket]

well I asked up above and was told that if I just wanted to use Dynamic rb for gravity I just should turn to kinematic and make my own gravity class

[thick socket]

pretty sure people just said you can still collide with walls and colliders

[hard viper]

you can

but the kinetic RB ignores forces

[rigid island]

kinamtic still collide with walls

[hard viper]

you need to program it to ricochet if that is what you want

it will register collision, but won’t get pushed back

[rigid island]

yea

it a good example of kinematic is this
https://assetstore.unity.com/packages/tools/physics/kinematic-character-controller-99131

[jaunty sundial]

im setting a bool fron another script true in a different script and im getting the object refrence not set to an instance of an object error does anyone know a fix

[thick socket]

so basically physics is if you want friction and "physics bouncing from hitting something or it hitting you"

[hard viper]

if you have “OnCollisionEnter”, it will get called, and that penguin would still keep going straight through that rock until you program it to do otherwjse

[rigid island]

not true..

that would be translation

not kinematic, kinematic will stop

[heady iris]

the built in character contorller is also kinematic. it is unaffected by physics forces.

although

[heady iris]

I dunno if you'd even call it "kinematic", since it's not a rigidbody

[hard viper]

kinematic rigidbodies do not respect forces

[rigid island]

yeah kinematic and character controller are very similiar

[heady iris]

The character controller just has extra logic to detect that it's inside a collider and to correct its position.

a process called depenetration

[hard viper]

if you tell a kinematic ball to move in a straight line, it will do that, and will not care if there are any walls are in the way

it will go along that line

[rigid island]

you're wrong

if you use Moveposition / Velocity it will stop..

its a very common way to use kinematic rb to make a Break out Paddle

or Pong paddle so it collides with edges/borders

[heady iris]

(unless this is another surprise 2D/3D difference)

[rigid island]

these only referes to OnCollision events not collisions themselevs btw

[heady iris]

indeed

The physics system doesn't try to send collision events for literally every pair of colliders in the world

(that would be painful)

[thick socket]

so basically physics is if you want friction and "physics bouncing from hitting something or it hitting you"
So a 2d platformer or game that just does basic shooting should be kinematic rb?

[rigid island]

yea kinematic controller is useful in 2D because it doesnt have character controller

so its the same thing just about

[hard viper]

https://youtu.be/xp37Hz1t1Q8?si=A_1-KILHm9FgzPbU at 1:54

that kinematic yellow block is going straight through everything, because it is being told to do so

[rigid island]

theyre not even showing which method of movement they're using 🤷

[hard viper]

how do you even move a 3D kinematic rigidbody if not by MovePosition?

moving the transform is just doing it wrong

[rigid island]

maybe they're using Translate 🤷

[heady iris]

i can just go check lol

[thick socket]

Ima go eat lunch...but let me know when you see from testing pls 😄

[lean sail]

Itll just go through the walls, move position is basically the same as updating its transform except its given velocity and can knock around other rbs in the time

[rigid island]

guaranteed , at least with .velocity the kinematic rb will be stopped by walls

idk about MovePosition tbh as i dont use it

i just use .velocity

and it stops at colliders 🤷

[thick socket]

so kinematic would have to program their own colliders basically

to not move through walls

[rigid island]

if you use .velocity guaranteed it wont

[heady iris]

a 3D rigidbody does not move based on its velocity

which physics system are you talking about?

[rigid island]

pretty sure I did it in 3D and 2D , one sec let me double check

[lean sail]

Depending on what you're trying to move, a raycast should just be fine

[hard viper]

idk. I know 2D. I know if I say “MovePosition to point A”, that goomba is getting to point A

[heady iris]

also, yes, a kinematic Rigidbody goes right through a wall when using MovePosiiton

It will push any non-kinematic rigidbodies that get in its way

[hard viper]

correct

[heady iris]

kinematic rigidbodies are not like character controllers

[lean sail]

The weight doesnt affect how much its pushed right? I remember this being a major issue in my game

[heady iris]

no, because kinematic rigidbodies don't have a velocity

[hard viper]

in 3D

[heady iris]

they simply shove whatever they hit out of the way

[hard viper]

correct

[lean sail]

It is given velocity temporarily while moving, that's how they hit it

Move it*

[heady iris]

well, they certainly don't have a momentum, then :p

[hard viper]

idk last I checked, my kinematic RBs never had a velocity

or rather, velocity = 0

[heady iris]

If you use MovePosition to move a non-kinematic rigidbody, then it will behave as expected when banging into a very heavy object

the heavy object barely moves

[thick socket]

sounds like a lot of pain to save a bit of performance over just using non-kinematic 😄

[thick socket]

so it goes through other kinematic objects?

[hard viper]

we don’t normally pick RB types based on performance. we pick them based on what we need done

[thick socket]

and pushes any physics?

[heady iris]

A kinematic rigidbody is not affected by physics. It can affect other physical objects.

[thick socket]

idk, sounds like a huge pain in the butt to do anything with them

collisions, program them yourself

gravity, program them yourself

[hard viper]

the point is that they do exactly what you tell them, and nothing else

[heady iris]

this is very useful for getting predictable gameplay

If I were making 3D bomberman, I would NOT use physics to make the bombs move

what if the bomb clips a collider and goes flying?

[thick socket]

thats fair

I guess maybe its nice for puzzle games or things like that

[hard viper]

if I want a lift that falls down with gravity, and ignores everything else (ignores friction, any sort of pushing, etc), kinematic RBs are what you want

or a platform that goes in a very specific way, every time, and ignores anything else as it goes on its movement

[bold pawn]

Like gravity or a wall collider

[thick socket]

fair, I was thinking more just player/enemy-movement type stuff

[hard viper]

sometimes we have really involved kinetic RB systems with character controllers. The reason to do that is to have 100% total control over every aspect of exactly how the player moves

[rigid island]

hmm turns out I had the Kinematic stop with Rb.Cast

[hard viper]

because again: It only does what you tell it

[thick socket]

performance-wise how much better is kinematic vs physics

cause outside of a few edge cases

I think thats all I care about atm

[bold pawn]

I feel like you're overthinking it

[hard viper]

cheaper. because it does not care about anything in its way. But if you then supplement that with a bunch of raycasts and shit just to check collisions (to make it feel more like a dynamic RB), then there isn’t much saving

because you are doing what the dynamic RB was doing, but programming it yourself

[thick socket]

Its more I have enough info that Im not going to bother since I like using physics objects unless its a lot better performance-wise

cause everything I have rn works fine

[lean sail]

On top of what others have said, it's actually easier to get one to move how you want it because you tell it where to go. For example, making a homing missile is a lot harder using forces only compared to just moving it closer to the enemy

[thick socket]

thats fair, Im working on that next actually lol

[heady iris]

i made a homing missile in gmod when i was 12

[bold pawn]

Just pop open a new scene and experiment

[heady iris]

entirely with thrusters

that was my magnum opus. pain in the arse.

[hard viper]

again; we do not pick dynamic vs kinematic for performance. If you need something to bounce off walls, that calculation needs to happen. Whether you leave it to unity’s physics engine (dynamic) or code it yourself (kinematic), the computer is still doing that calculation if you want that object to bounce off that wall

[thick socket]

figure I can just change the rb.velocity though and achieve basically the same thing tho

[thick socket]

I hear what you are saying

[heady iris]

the missile violently spun straight towards its target. brilliant machine.

[thick socket]

but at this point unless its for performance Its not worth me changing stuff around to "fix it"

[hard viper]

because kinematic rigidbodies ignore forces

kinematic rigidbodies only move how you tell them to, and ignore anything stopping them from doing what you ask

[bold pawn]

I guess if it ain't broke, right?

[thick socket]

pretty much

I've messed with physics objects a lot and never had issues

so unless there was a performance reason to stop Im just not going to 😄

[hard viper]

if I want a ball that goes in a straight line, or in a circle, or in a parabola etc, and I want it to be unaffected by everything, that should be kinematic

[bold pawn]

It never hurts to experiment and learn.

[thick socket]

or have physics and a trigger collider?

[hard viper]

it is way easier to program simple movement than to try to fight the physics system as it tries to push your object off course

[thick socket]

cool

[hard viper]

if I want a line, I want a line. I do not want a janky line that I need to correct to every time something gets in my way

[thick socket]

appreciate everyones insights, I definately understand it all a lot better now 😄

(its like 1pm and I haven't eaten today so Ima go grab food lol)

[hard viper]

back to my optimization question from yesterday, I do not understand why this code isn't super fast

the inner loop is normally called about 4 times, so it isn’t a massive iteration

[heady iris]

why do you believe it isn't fast?

[hard viper]

in deep profiler, this function just winds up costing several ms even for just a few dozen calls

and I’m baffled

[heady iris]

deep profile makes things a lot slower

so keep that in mind

[heady iris]

so range.x and range.y are usually both 2?

[hard viper]

i only took out the deep profiler because my game was lagging

usually both 1 or 2

and in future, could be bigger, like 3-4

[turbid salmon]

can anyone help me with my shop system ?

well first i added a coin system script called PlayerManager.numberOfCoins

can anyone create for me a shop system plz that has the character index and more things

[heady iris]

no, we aren't going to write code for you.

[turbid salmon]

why ?

i need a little help

[heady iris]

I would strongly suggest reading #📖┃code-of-conduct and #854851968446365696 before continuing

[knotty sun]

somewhat odd definition of 'little', creating a complete customized shop system, me thinks

[heady iris]

a shop system is an inventory system in a trenchcoat

so, yes, hardly ever "little"

[turbid salmon]

no it dosent need inventery it just a public void ChangeCharacter(int index) and the deselected index need to be unactive

[knotty sun]

a shop without inventory, odder and odder, what are you selling? Software or Dreams?

[turbid salmon]

oh fine wanna to see a video ?

[knotty sun]

no

[heady iris]

not really

[orchid bane]

Please don't be toxic

[turbid salmon]

i want to explain please i want to publish my game in playstore

[hard viper]

This discord is not for us to code things for you. It is to seek help

[turbid salmon]

but i like it ☺️

i am like gentle man ill never break rules (only do not spam idk how i can stop it)

let me take a look on the rules

[orchid bane]

That's the first thing you should've looked at

[steady moat]

Can we see the profile of the function ? Because if range.x and range.y are low, I hardly see what can cause performance issue.

[hard viper]

it's all in self

all the sub function calls are like Vector2.ctor etc. It's almost entirely self cost

[summer helm]

Does anybody know how I can make the trigger vibration motors on the Xbox Series X controller work in a script? There are no tutorials that I can find and the documentation about it is not helpful

[thick socket]

If I have a box like this thats "rotated" How can I determine if the X here is "above" the Y so that I need to rotate "upward" to rotate towards it

[summer helm]

Btw I am using the new input system

[leaden ice]

(for new input system): https://docs.unity3d.com/Packages/com.unity.inputsystem@1.7/manual/Gamepad.html?q=rumble#rumble

[thick socket]

Is this how I should be doing it?

// Calculate the vector from the cube's position to the point you're checking
        Vector3 toPoint = pointToCheck.position - cubeTransform.position;

        // Calculate the dot product between the cube's local up vector and the toPoint vector
        float dotProduct = Vector3.Dot(toPoint.normalized, cubeTransform.up);

        // Check if the point is above the cube's local Y direction
        if (dotProduct > 0)
        {
            Debug.Log("Point is above the cube's local Y direction.");
        }
        else if (dotProduct < 0)
        {
            Debug.Log("Point is below the cube's local Y direction.");
        }
        else
        {
            Debug.Log("Point is on the same plane as the cube's local Y direction.");
        }```

seems way harder than I feel it should be

[leaden ice]

Vector3 localPos = myBox.transform.InverseTransformPoint(positionOfTheRedX);
if (localPos.y > 0) {
  // it's "above"
}```

[summer helm]

That doesn’t tell me how to use the trigger rumble on Xbox Controllers

[thick socket]

awesome thanks!

[leaden ice]

Gonna be honest IDK what that is or how it's different from what I'm talking about

[turbid salmon]

here is my game

[thick socket]

is that like a new thing where only the trigger "vibrates"?

[turbid salmon]

it needs a shop system right ?

[leaden ice]

#archived-game-design

[summer helm]

Supposedly it’s been a thing in Unity for a while, but the documentation is useless for the impulse triggers (trigger vibration)

[thick socket]

is this how I would determine the angle to rotate to face that RedX or if there another nice unity function for that

Vector3 localPos = myBox.transform.InverseTransformPoint(positionOfTheRedX);
float angle = Mathf.Atan2(localPos.y, localPos.x) * Mathf.Rad2Deg;

[leaden ice]

which face do you want to rotate towards it?

your local up?

your local right?

[thick socket]

local.right

well...transform.right

I think thats the same

[leaden ice]

Vector3 dirToX = positionOfTheRedX - myBox.transform.position;
Quaternion rotationToApply = Quaternion.FromToRotation(myBox.transform.right, dirToX);
Quaternion targetRotation = myBox.transform.rotation * rotationToApply;```

now you have a quaternion that represents the required rotation

[thick socket]

sweet thanks

[leaden ice]

You can use this with Quaternion.RotateTowards or Quaternion.Slerp or whatever to make it smooth

or rather:

Quaternion targetRotation = myBox.transform.rotation * rotation;```

[thick socket]

gotcha...Im wanting to "cap" the rotation so it only rotates a certain amount/second

[leaden ice]

yeah Quaternion.RotateTowards is good for that

[thick socket]

so I would just use it like this right? ```cs
Vector3 dirToX = positionOfTheRedX - myBox.transform.position;
Quaternion.RotateTowards(myBox.transform.right, dirToX, rotateSpeed);

[leaden ice]

No you'd use this code ^
and then:

myBox.transform.rotation = Quaternion.RotateTowards(myBox.transform.rotation, targetRotation, Time.deltaTime * rotationSpeed);```

[thick socket]

awesome thanks...was trying to work in out since my last message and was about 80% of the way there

[thick socket]

    public Dictionary<Bullet, ObjectPool<Bullet>> bulletPools = new();

can I do a Dictionary like this?

not sure if it will see different "Bullet" prefabs as the same thing

[spring creek]

I would use something like a BulletType enum as the key

[thick socket]

I was doing that

[spring creek]

I think what you have would use INSTANCES of bullets as the key

[thick socket]

but I wanted to create prefabs with different bullet speeds

but yeah I think you are right, I should just set bulletspeed in code 😄

(for anyone wondering...yes you can do it the way I had above ^^ )

[spring creek]

You could also do strings as keys, take the enum and concat it with another enum to make a string.
Like FireBullet_Fast, FireBullet_Homing

Or something. I dunno
Edit: or maybe a tuple instead. Not sure which is less dumb haha

[spring creek]

Ah interesting, good to know

[lean sail]

the prefab as a key is fine imo but the only downside is its kinda annoying for the object itself to return itself to the pool. If you try to store the prefab reference on itself, itll update to the instance of the object when instantiated

[thick socket]

I dont fully understand the second part but I do have it do this

pool.Release(this);

however other classes are the ones that call the pool to create it

[lean sail]

if you have an object try to reference its own prefab, itll instead reference the instantiated object when spawned

but thats really all

[thick socket]

ah gotcha

[leaden ice]

if this is intended as a map of prefab -> object pool for that prefab, yes you can definitely do this

you just have to be very aware of which Bullet reference you're dealing with at any given time. Accurate variable names helps with this.

[thick socket]

Vector3 targetpos = target.center.position;
            Vector3 dirToX = targetpos - transform.position;
            Quaternion rotation = Quaternion.FromToRotation(transform.right, dirToX);
            Quaternion targetRotation = transform.rotation * rotation;
            transform.rotation = Quaternion.RotateTowards(transform.rotation, targetRotation, Time.deltaTime * 450f);```
This code from earlier looks right right?

my bullet isn't ~~rotating ~~ moving towards enemy

(debug shows this code is executing)

nvm Im dumb sorry

never re-set the velocity 😭

[wary basin]

Having some issues with git. Specifically, .unitypackage files. I'm trying to work on a friend's project, but we're having a lot of issues with metafiles randomly being added and removed from the repo.
Currently, they have a slurry of unitypackage.meta files that unity says need to be pushed to the repo. The problem with that - our .gitignore, and every template I've looked at, excludes any *.unitypackage files, but not *.unitypackage.meta files.
Is this intentional or not? I can't see why you'd want the meta files, but not the actual package files.

[knotty sun]

why do you have .unitypackage files in your project?

[wary basin]

Not my project so I can't speak to how it's set up, but here's a sample of the git status:

I did suspect that maybe the .unitypackage files aren't meant to have .meta files alongside them, but when I asked if they had ever moved their packages, they said no.

[knotty sun]

I suspect that those assets are supplying additional context in a .unitypackage file which is then unpacked into the assets folder and deleted leaving the orphan .meta file behind. you can simply add a .unitypakage.meta to your gitignore

[wary basin]

I considered that too, but the .unitypackage files are actually on this person's pc, they aren't orphaned .meta files.

[knotty sun]

I would ignore them both in that case

[hard viper]

If I have an object about to touch an area effector (or something that gives force), and it enters this region in between frames, (in between fixed update frames), does force get applied during those frames before the fixed update frame?

like:
Update - not in effector
Update - yes in effector
FixedUpdate - Yes in effector

would the object be getting pushed between the 2nd update and fixed update?

[kindred hearth]

Im not sure but my take would be that the update will see that it is indeed in the effector but not apply force

And the force would be applied

Next fixed update?

[thick socket]

"Resolution.refreshRate is obsolute: use refreshRateRatio instead"
        Application.targetFrameRate = Screen.currentResolution.refreshRate;
        //Application.targetFrameRate = Screen.currentResolution.refreshRateRatio;

cannon convert type UnityEngine.RefreshRate to int

when I try the top it says obsolute, when I try bottom it throws error 😄

[somber nacelle]

access the refreshRateRatio's value property

and next time perhaps take a look at the docs

[atomic sinew]

does anyone have any idea why float forceMagnitude = Mathf.Sqrt(2.0f * Physics2D.gravity.y * _bounce); returns NaN?
_bounce is 4 here and gravity is set to -47, so nothing weird going on here. i tried setting physics to -9.81, but same problem

*gravity, not physics

[somber nacelle]

the square root of a negative number is NaN

[thick socket]

I tried that...when the docs dont have actual code I get pretty lost

[atomic sinew]

thanks!

[thick socket]

ah, I just have to grab that value and then change it into an int

thanks 🙂

leave it to Unity to make something that works nicely have to have a cast now

very fun

[sly crag]

hey guys, I need to make a single sctipt for all weapens and make the children inherit it, but when I use OnTriggerEnter, and I get triggerd with the child object it doesn't detect, the funcion is public and the children has a collider that is triggerd.

[spring creek]

Use the collision matrix and validate the collision in the method

Are you saying the child objects inherit a script that is in the parent?

May get a little messy

[sly crag]

I have a weapons script that have many children like postol,smg.., the children are objects but the parent is just a script

[spring creek]

Oh ok. Then yeah, just use a collision matrix and validate the collision. What specifically is the issue?

[sly crag]

it deesn't detect

[rain minnow]

huh? that's confusing. each weapon should have their own instance of the script. if their just child GameObjects of any empty GameObject with the script, that's not inheritance . . .

[spring creek]

Go through this:
https://unity.huh.how/physics-messages

[spring creek]

Yeah, I'm getting a bit confused too. Like are we talking hierarchy?
I THINK they mean, only the derived classes are on objects anywhere, the base class isn't on any object

[sly crag]

this might clear things

Weapons Script:

public class Weapons : MonoBehaviour
{
public void OnTriggerEnter(Collider other)
{
print("test");
}
}

Pistol Script:

public class Pistol : Weapons
{
}

[spring creek]

Yeah, the issue isn't really to do with inheritance, but physics messages. Did you go through that link at all? There could be a number of causes. The biggest one that gets people is that for OnTriggerEnter, you need a non-kinematic rigidbody on one of the objects

[sly crag]

I'm going throw it now, and try to solve it thx

[jaunty sundial]

ok im changing the layer of a prefab halfway through the game to ground however when the game ends the prefab doesnt go back to its original layer in the editor

why is that

[sharp rose]

hello, I am currently trying to activate the children of my parent object through a script in the parent object. I figured out how to reference a variable from an entirely different script but now I am struggling with figuring out how to activate each of the children based on the value of the variable from the other script. How do I go about this?

[spring creek]

Are you actually changing the prefab file?
Or you mean a gameobject that was instantiated FROM a prefab?

[spring creek]

Where is the value that you want to base it on? I don't think you can get values from disabled gameobjects

[sharp rose]

The value is from an entirely different object and script