archived-code-advanced

[north marsh]

yes, the migration process was a basically a drop-in 1-1 replacement for me. We do have a few coroutines but we converted them too

[scenic forge]

If you have rewritten coroutines to UniTask, one gotcha is that coroutines get auto killed when the MB is destroyed while C# task/UniTask don't and you have to handle that on your own. That's one place to check.

[north marsh]

I am not sure. The only reason I am blaming unitask is 1) performance issue happen after I integrate it 2) I am unfamiliar with this blackbox

[north marsh]

Ok I will check it

[scenic forge]

Oh and UniTask has "UniTask Tracker" in editor, you can open that and check if you accidentally leak tons of tasks running forever.

[north marsh]

btw do you have suggestion to deal with "not responding"? I tried collect log from players but logs aren't very helpful in pinning down the cause - it just get truncated.

[Game Name] is not responding

[scenic forge]

No sorry.

Best case scenario is to find a way to reproduce the issue directly in editor, so you can use all the profiling tools.

[north marsh]

yeah

[sly grove]

this would be caused by:

• an infinite loop
• a deadlock (unlikely)
• doing I/O in the main thread
• doing any other blocking operation in the main thread

[north marsh]

Could it be caused by intensive memory/GPU use?

[sly grove]

no

[north marsh]

what error you get if you get to memory 100%?

[sly grove]

i mean theoretically if rendering takes a really long time that's blocking

[sly grove]

OutOfMemoryException?

something along those lines

or a hard crash

[north marsh]

ok

[sly grove]

if it's in the unmanaged section of the engine

[edgy pivot]

how can i change the width of an image (in pixels) via a script?
like :
myimage.width = whatever;

[half swan]

I think like this:

_image.rectTransform.sizeDelta = new Vector2(width, height);

Also, I would ask this in: https://discord.com/channels/489222168727519232/497874004401586176

[half swan]

Please don't cross post. You asked this in all three code-x channels.

[thin merlin]

I could use some assistance. How to I make it so moving up with always move the player in the direction the active camera is facing?

Let me be more specific: I'm making a third person game with different types of cameras (think Silent Hill or classic Resident Evil). I need the character to mover correctly when the camera is rotated. How do I make it so that the movement directions act relatively to the camera?

[tiny pewter]

Camera direction is its transform.forward
I dont understand why not the camera follow the player but the player follow the camera

[half swan]

I think they want the camera to not move at all. Then when you get to the edge, you get a completely different camera position and angle.

Like it jumps there

[thin merlin]

yeah, so for example if you were to hold right, you'd just run in a circle around. Likewise, if I were to have the camera face the opposite direction, suddenly down moves the player forward and up moves them backward. I want to know how to prevent that from happening in a way that works well.

another good example: The camera is anchored to the corner of this room, but no matter where I move, up sends me forward, right/left sends me thus, etc.

That's the effect I'm trying to achieve.

[sly grove]

I hate to say it but this is kind of a #💻┃code-beginner question.

Project your camera's forward vector on the gameplay plane (y axis normal plane in this case). Then make a LookRotation quaternion and multiply your input vector into it.

Or project your camera's forward and right vectors on that plane and compose the movement vector from those normalized directions.

[thin merlin]

See I figured it would be something simple like that, but I tried multiplying the movement vector by the quaternion of the camera and only got an error. What would the code for that look like?

[tiny pewter]

you can use the transform.forward and left of active camera without quaternion.....

i forgot how the property of transform direction on x axis is called (left or right)

[thin merlin]

It's a simple solution I'm overthinking, or I just don't know how to set up the code in this particular case.

[tiny pewter]

get and copy the direction and set its .y to zero then you get the direction vector projected on xz plane

[thin merlin]

then you get the direction vector projected on xz plane What would an example of that code look like? I know how to do the first part.

[thin mesa]

Vector3.ProjectOnPlane

[thin merlin]

ah, that is a new function for me

[brisk spruce]

cant you just straight up use LookAt in this case?

[thin merlin]

Vector3 movement = new Vector3(move.x, 0, move.y);

movement = Vector3.ProjectOnPlane(movement, camRotQuat.eulerAngles);``` So this didn't work. Now my horizontal movement is bust. Clearly I did something wrong here ...

[thin merlin]

For the camera or the player ... ? I already have the camera looking at the player.

[austere jewel]

eulerAngles isn't a vector you should be projecting onto anything, it's a rotation expressed in degrees, it makes no sense as a direction

[thin merlin]

So what do I use instead? Do I need to do something else entirely? I see on the API that they do something with degrees and radians ...

        //Vector3 planeNormal;
        //Vector3 response;
        //float radians;
        //float degrees;

        // Compute a normal from the plane through the origin.
        float degrees = Random.Range(-45.0f, 45.0f);
        float radians = degrees * Mathf.Deg2Rad;
        Vector3 planeNormal = new Vector3(Mathf.Cos(radians), Mathf.Sin(radians), 0.0f);

        movement = Vector3.ProjectOnPlane(movement, planeNormal);```I didn't expect this to work, and expectations met.

This is one of those things where once I've seen how it's done once it'll be so clear that I'll never need to ask again, but until then the answer is eluding me.

[brisk spruce]

ohh I see the issue, aight

[proper field]

Hey guys I need a help with this code

[proper field]

I can't call the functions can you guys help me?

[austere jewel]

Your !ide isn't even configured, this is not an #archived-code-advanced question, it's a "start at the beginning" question

[thorn flint]

💡 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.

[proper field]

Okay thanks

[sly grove]

The quaternion goes first on the multiplication. It's not commutative

[left idol]

Hey, I'm looking for the opinions of whoever might want to chime in:

I'm designing an inventory system, and had the choice to either use events, or just somewhat tightly couple my inventory with my UI. The inventory is very barebones and I won't be doing anything fancy. I went for the tightly coupled approach, because I dislike having "manager" classes and empty objects in my scene, as they eventually just turn up being boilerplate. Additionally, it doesn't violate single responsibility: every component does exactly one thing (even though I'm sure I could simplify it further.)

Would you make the same choice for a extremely barebones inventory for a pretty simple game, or would you go the event pathway? For me, the biggest turn off on the event pathway was that I needed to communicate with gameobjects that were not active (e.g. the menu), which would require a middleman class.
Thanks for reading, if you did. I appreciate whatever feedback.

[tropic vigil]

I usually separate data & logic from visuals if data or logic will be used also by different scripts. If it's used only by one script, then I suppose it can be stored inside.

[dusty wigeon]

If we are talking about preference, I would want a self-contained system that has no reference to anything then itself.

[hushed fable]

I generally just make sure UI is relying on the implementation and not the other way around. Worth noting that you could just disable the visual aspects of the menu without disabling the menu itself.

[left idol]

@tropic vigil That's essential to me as well. I meant more the approach of either directly referencing say, the Player's inventory from the UI class (the classic drag and drop the reference in the inspector) as opposed to using events to communicate between layers, which requires some more setting up but is eventually more scalable. I've the feeling I might be missing something by not using events, thus the "question".

[left idol]

Oh, that's nice to hear, I didn't figure it out yet, kind of coming back to Unity seriously after a long time not using it. I'm using setting the visual elements's active status in the hierarchy to manipulate their visibility.. is there a way to do this without disabling the GameObject?

[hushed fable]

Just separate the menu from the visual stuff.

[left idol]

Mind you, I realise I could have an empty object manage the state of the menu, but I'd rather not as I don't like clutter in my scene

Aha, I see what you mean

[brisk spruce]

Im attempting to make a custom panel with custom editor properties for UI-Toolkit stuff, the custom properties show up in the editor but when I modify them, they dont persist. The X_Pos and Y_Pos values default to 0 instead of 0.5, and they just reset to 0 everytime I click away, did I miss something important?

https://hatebin.com/jrgrklcazm

can see in the UI the three fields show up at least

[dusty wigeon]

They are probably not correctly serialized and only live in memory.

You should try to look into how to correctly apply/create a serialize property.

[brisk spruce]

I did lol

This is the guide, maybe I missed something but Im not seeing it

https://docs.unity3d.com/2023.1/Documentation/Manual/UIE-expose-custom-control-to-uxml.html#define-attributes-on-elements

[dusty wigeon]

I've pretty limited in my knowledge of UI Toolkit, however this issue is frequent in Custom Editor as well.

Sometimes it is because you forgot to mark your class as System.Serialize, other it is because you didnt apply the modification on the prefab with PrefabUtility.RecordPrefabInstancePropertyModifications, maybe even SerializedObject.ApplyModifiedProperties has not been use correctly.

[brisk spruce]

none of that applies to these guys, they are a different class and different implementation

[dusty wigeon]

As I said, the symptom are the same which means that the issue most be simular.

I just gave you things that I know that can be an issue in the other implementation.

Just take note of that while doing your research as it can provide you point of reference.

[brisk spruce]

wow this one was esoteric, and maybe its in the docs but I have looked twice now and dont see it.

Your name property of the attribute descriptor must match exactly a kebab-case to PascalCase of the property it binds to, pure magic string stuff that uses reflection to bind

so I changed name to be x-pos and then the property to be XPos and now it binds fine

[dusty wigeon]

So, I guess the serialization was the issue.

[brisk spruce]

yeah but in the wonderful "silently fails and docs dont mention anything about it" sort of way, wheee

[dusty wigeon]

It is still an API in progress.

You might want to include your feedback.

[brisk spruce]

yeahhh... this seems like basic stuff though, how hard is it at least to log a warn or error that it binded to a property that didnt exist, it should throw something to go "hey I tried to set a value and didnt find a match" instead of just... silently failing :/

[jolly token]

#🧰┃ui-toolkit is wild

[granite viper]

That is real dumb

[brisk spruce]

this feels like if css and XAML had a frankenstein baby, but in a back alley so its not documented much at all :x

[thin merlin]

That worked! I knew it was simpler than I thought. Thank you for helping me!

[dry bear]

Did you get FlatSharp to compile in mobile platforms?

[flint sage]

I doubt it works out of the box since you're likely using il2cpp

And it does code gen which is not supported

[dry bear]

I am basically trying to serialize data in the Unity client and send it using sockets to a C++ server, and viceversa. Is Flatbuffers a good library for that? Or are there better options out there?

[flint sage]

Sure if you can make it work on mobile 😛

Oh, iirc some libraries support pre-generating the code gen bits

So it might work

But I haven't tried it myself

[dry bear]

I thought it would just be a matter of pasting the mobile library files in the Plugins folder

But I don't know how to even generate those files

[scenic forge]

With Protobuf, I think you can feed the CLI your schemas and it will generate the C# sources for you, so that one should work for IL2Cpp (untested)

[jolly token]

There are many serialization protocols libs you can try

Anything does build time codegen would make most sense for IL2CPP

[dry bear]

I saw this Unity plugin https://assetstore.unity.com/packages/tools/network/flatbuffers-tool-for-the-editor-159043#content

Which has an option to generate the c# definition

but I don't know if that would work if I'm building on Android

based on this I guess it won't work

[jolly token]

That's about flatc which compiles the protocol into each language

You don't need flatc on Android

The platform you need to care about that is the one you are using Unity on

[dry bear]

oh

I will only be using it on Windows and MacOS

[jolly token]

So that is not a problem

[dry bear]

nice

but will the library work on Android if the plugins folder has these files?

I had it mind that for Android there were different library files (.so)

[jolly token]

That's probably C# managed lib

That is compiled thru IL2CPP

Things like .lib .so .a etc is native lib which will be linked without IL2CPP
Anyways those are not the case here

[dry bear]

oh okay, so basically it should be included just fine in an Android or iOS build

because it will get compiled into c++?

[jolly token]

Yeah

[dry bear]

cool, thanks I'll try it 🙂

[torpid birch]

nICE

guys can i ask you something

please

[fresh salmon]

If it's about advanced programming concepts, sure. Else find the most appropriate channel at #🔎┃find-a-channel

[torpid birch]

Yes

so talking tom voice record and playback are Hard ?

because i am making talking tom Clone

[half swan]

I saw your questions when you were muted yesterday for spamming. This is the wrong channel.

[torpid birch]

i am sorry

because i was angry yesterday

Please don't mute me or ban me <:3

[half swan]

Then don't spam or call peoples mothers names

[torpid birch]

YES <:)

i swear

i just need help on my game

Hello ?

[brisk spruce]

you are spamming again lol

[torpid birch]

is anyone there ?

No

this is not spam

[frozen imp]

@torpid birch Did you read the #854851968446365696 ?

[torpid birch]

YES I DID

BUT I AM NOT SPAMMING

[brisk spruce]

Id recommend reading it again

[torpid birch]

WHAT THE MEANING OF SPAM

[hardy sentinel]

first of all you type 1 full sentence in like 4 lines.. how's that not spam? 😄

[fresh salmon]

You are spamming right now

[hardy sentinel]

look at the picture on my screen -- it's full of your messages

even more -- there's not 1 bit of useful info.. if that's not spam, then idk what is 😄

[fresh salmon]

Sending multiple messages in a short succession is spam

[brisk spruce]

repeatedly sending the same statement over and over, sitting there asking "is anyone there" in a few different ways is spam

[frozen imp]

@torpid birch There's no off-topic here. If you are not asking questions or answering them - you're spamming.

[torpid birch]

Ohhh i am sorry about that 😅

[brisk spruce]

also all caps is considered rude and disrespectful / shouting, and is another good way to get muted

[buoyant marsh]

Does anyone here have Gradle experience?

[brisk spruce]

100% of my gradle experience is pretty much always "get some other 3rd party lib to do the gradle part for me"

[torpid birch]

my bad

[buoyant marsh]

😭 Idk what the hell is wrong with my Gradle but it refuses to work

[brisk spruce]

this also has been my experience with gradle pretty much everytime I try and work with it @_@;

[fresh salmon]

100% of my Gradle experience is :BUILD FAILED lmao

[brisk spruce]

^

[torpid birch]

are you using android

[buoyant marsh]

Yeah im using android

is there another way for me to run a build on my phone without using Gradle?

[torpid birch]

if you are using android download new gradle

[brisk spruce]

actually fun fact, the one time I had success with gradle was natively compiling android apps... on android

[buoyant marsh]

It only broke when I updated from 2020.*.* to 2022.3.5f1

I am using the newest version of gradle

[torpid birch]

on gradle website

[buoyant marsh]

As well as the newest LTS release

[brisk spruce]

you probably have like 30 things you need to download and update, knowing gradle

[buoyant marsh]

Yeah literally

Im not sure what else I could use though

[torpid birch]

i also had this problem but i fixed them

[brisk spruce]

something something java runtime SDK openjdk gradle foo bar phi package builder tools android google something something

[torpid birch]

to fix it you need to add user keystore to your game

[buoyant marsh]

#1132700117602947152

[torpid birch]

Trust me

[buoyant marsh]

Check out this thread if you wouldnt mind 🙂

[brisk spruce]

god speed and best of luck

[torpid birch]

i hope she work

[buoyant marsh]

Im not sure if I really have to do all that tbh

[torpid birch]

do it

[frozen imp]

Upgrading major version you should regenerate Library folder and recheck all the settings. If settings objects were changed they could reset,

Good sanity check is to create a new project and test if it will compile with needed settings empty

[torpid birch]

now you are spamming

[frozen imp]

!mute 980625836875063348 7d Ignoring warnings. Spam

[thorn flint]

issamiyad#0 was muted.

[buoyant marsh]

Yeah I had done this to find out it was REALLY broken. I was using the older version of unity for my project when I had the first gradle issue, so I then updated unity in hopes that it would fix the gradle issue but it didnt. I ported the old version of my game to the new verison of unity and it still didnt work so I created a new version of the game as well as downloading the most recent version of gradle. I copied everything from the new version of gradle binary folder into the correct directory in the unity files but im worried there might be more

Do you think if I just grabbed all the gradle files and copied every single one that could work?

I assume the issue is outdated files based off the console logs that I have

[frozen imp]

I don't have any experience with gradle. You might want to try forums for more long term questions.

[buoyant marsh]

Alright thanks man, much appreciated

[brisk spruce]

this ui toolkit stuff seems to be buggy as hell, when it comes to something as simple as just using a sprite as a background image

[flint sleet]

Is there any way to get a summary of all profiling results in the unity profiler rather than inspecting frame-by-frame? I want to see across all recorded frames, which of my script methods took up the most cpu time. Ideally also across all threads

[dry bear]

Hey guys, I'm trying to find a good library to send data between a Unity client and a C++ server.

I was looking into Flatbuffers but the whole schema thing seems little flexible to me.

I would like to be able to do something like:

buffer.Write<int>(123);```

And from the other side do:
```string s = buffer.Read<string>();
int i = buffer.Read<int>();```

I don't like Flatbuffers because I think I would need to define a different schema for every message type that I send, which seems like a lot

do you know of any libraries that can do that?

[jolly token]

Is this for netcode that happens frequently?

[dry bear]

yes

well, the game I'm doing is point and click so it's not like an FPS where you're constantly sending data

[jolly token]

Okay so the format can be just Json then?

[dry bear]

I feel like Json would be really slow

I read somewhere that compared to Flatbuffers is 40x slower

[fresh salmon]

There's BinaryWriter that can write to any Stream, you choose what to write like in your example

[jolly token]

It is slower for sure but if your usage is unstructured data then it is maintainable option

They're using C++ server vs C# client so may need some more tuning than BinaryWriter

[fresh salmon]

Well it works on the encoding side at least

[dry bear]

yeah I tried BinaryWriter and Reader but a string sent in C++ wouldn't match, so that's why I started to look into packages

[dry bear]

The thing that worries me is that if the server has several hundreds of users, and it has to read deserialize that many Json data, I think it might be too slow

maybe it's not that bad to use Flatbuffers 😂

[jolly token]

Add more API servers 😄

[fresh salmon]

What about something like messagepack? It's compact so it uses less bandwidth, and it's a global standard with a lot of implementations

[jolly token]

MsgPack is not bad but might have some friction with IL2CPP

[thin mesa]

it shouldn't, just need to use the AOT generation. but that's required if you're targeting anything other than .net framework with mono anyway

[dry bear]

I'll check that out

[jolly token]

Anyways I would recommend defining message format, it’s worth doing it

[dry bear]

the thing is, in my netcode I plan to first get an enum value from the byte[] that I receive so that it tells me what type of message it is, and what data I can expect to retreive from that buffer

but how can I read this first enum using Flatbuffers?

I think message pack is closer to what I'm trying to do, since you can do:

    public UnitInfo Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)
{
    var count = reader.ReadArrayHeader();
    var unit = (LengthUnit)reader.ReadInt32();
    var abbreviation = reader.ReadString();
    var baseUnit = reader.ReadMessagePackObject<BaseUnits>();

    return new UnitInfo<LengthUnit>(unit, abbreviation, baseUnit);
}```

[scenic forge]

Pretty sure FlatBuffer can do union types.

[dry bear]

how could I use union types to know what type of package I'm receiving?

I fee like I'm complicating an easy thing to do, I just want to be able to do this:

From client:

buffer.Write<int>(123);```

From the server:
```string s = buffer.Read<string>();
int i = buffer.Read<int>();```

And in cases I want to read an int first so I know what I will have to read afterwards.

[scenic forge]

If all you want is just simple data types like string and various numbers, then yeah just have your own spec and implement in on both sides. String could be “4 bytes (string length) + length bytes (UTF8)”

The reason why people are suggesting these existing solutions, is that eventually you are just reinventing schema. An event being exchanged will very unlikely to be just one piece of data, a player moved event could be “1 byte (event type) 4 bytes (player ID) 12 bytes (position)” so you end up writing code on both sides encoding and decoding that, which is what a schema is.

[thin merlin]

GameManager.input.Player.Attack.performed += x => NullAction();So I have this code using the new input system, but I don't really know what the x is accomplishing here. I just know that the tutorial said it was required to just work. Is there something else I can put there, like a set of conditions (bool check or etc.)?

[brisk spruce]

Finally figured out a wicked clean way to type safe pub/sub to INotifyPropertyChanged, and boy does it feel good

[dry bear]

I get what you mean

but let's say that from the server you receive an array of bytes, how do you know what schema to deserialize it to?

[thin merlin]

basically I want to make it so the attack button doesn't get set to NullAction() if a condition is true, and I want to know if I can save myself a line for an if statement in this case.

[brisk spruce]

public void BindTo<T>(Expression<Func<GameState, T>> selector, Action<T> method)
{
    var fmn = selector.GetFullMemberName();
    var compiled = selector.Compile();
    PropertyChanged += (_, e) =>
    {
        if (e.PropertyName != fmn)
            return;
        method(compiled(this));
    };
}

And then all I do is something like

GameState.BindTo(s => s.RoundCount, OnRoundCount);

private void OnRoundCount(int roundCount) => ...

[scenic forge]

Union types are typically tagged, it’s just like the example I gave where the first byte indicates what type it is.

[brisk spruce]

use Protobuf, itll make your life way WAY easier

protobuf was pretty much entirely designed for this exact use case

combine it with uh, whats it called... mediator pattern

and/or strategy pattern

[scenic forge]

The “reading first byte and switch on it to deserialize rest of the bytes based on that type value” is all done for you by those solutions.

[dry bear]

oh

okay, didn't know that

[brisk spruce]

protobuff also does that sorta stuff in some form of automagical way thats at the "some team of engineers with dozens of years of experience combined and multiple PHDs on the topic" level

where you just define the protobuf file and then it just builds out C# files for you automatically and you just call .serialize or .deserialize on a byte array and it just gestures vaguely makes it happen

and it has a whole way to define a variety of types a payload can have using the OneOf attribute or whatever its called in protobuf, so you just go
OneOf foo, bar, phi and itll have one of em set and the rest null

[dry bear]

and how do you know what type it is when you deserialize? can you maybe do a switch based on the type?

[brisk spruce]

you have a "root" object that has multiple OneOfs on it, and one of em will be not null and the rest will be null

so you can just do like

if (packet.ObjectA != null)
   return DoThingAWith(packet.ObjectA);
if (packet.ObjectB != null)
   return DoThingBWith(packet.ObjectB);
if (packet.ObjectC != null)
   return DoThingCWith(packet.ObjectC);

maintains full type safety, no reflection/type casting/etc needed

[dry bear]

have you tried FlatBuffer? I think it's similar to protobuf

[brisk spruce]

I have not, theres a few solutions, protobuf is just the one I am familiar with

[dry bear]

could you show me an example of deserealizing a byte[] that you don't know the type of? I haven't seen anything online 😦

I see everywhere this:

{
    var myPerson = Serializer.Deserialize<Person>(fileStream);
    Console.WriteLine(myPerson.FirstName);
}```

but in the case of receiving a network message you can't just do Deserialize<Person>

[brisk spruce]

I wrote it above, youd have 1 single class for all payloads, but it would have multiple properties for all the possible "types" it can be.

When you use OneOf for protobuf, one of those properties will have its value set, and the rest will just be null

So you'd just do

var packet = MyPacket.Deserialize(filestream);
if (packet.ObjectA != null)
   return DoThingAWith(packet.ObjectA);
if (packet.ObjectB != null)
   return DoThingBWith(packet.ObjectB);
if (packet.ObjectC != null)
   return DoThingCWith(packet.ObjectC);

oh sick protobuf 3 now even has a specific method for checking if its set, it has an enum that gets generated

https://protobuf.dev/reference/csharp/csharp-generated/#oneof

so in there example code you could do:

var packet = MyPacket.Deserialize(filestream);
switch (packet.AvatarOneofCase) {
    case AvatarOneofCase.ImageUrl:
        return DoThingWithImageUrl(packet.ImageUrl);
    case AvatarOneofCase.ImageData:
        return DoThingWithImageData(packet.ImageData);
    default:
        break;
}

[dry bear]

so if you have let's say 50 different message types that you want to send, you need to create 1 class with 50 fields ?

[brisk spruce]

yeah, prolly would be a good idea to subdivide those up into "category" classes as needed

[scenic forge]

You’d create a schema, the classes will be codegen’d for you.

[brisk spruce]

you can nest oneofs no problem, so you can divvy them up into groups and even groups of groups if you need

for organization/sanity purposes :p

[dry bear]

so you only have 1 schema and inside that schema all the different message types?

[brisk spruce]

thats where Mediator pattern and/or Strategy pattern can come in to help your sanity out for organization

[brisk spruce]

exactly yeah

at the root you just have "packet"

protobuf is wicked fast so dont worry about if this sounds clunky, its actually incredibly fast performance wise

[scenic forge]

Even better, with that schema you will get code for both the C# and C++ side; if you ever need to add/change/delete something, do it to the schema and regenerate again, both sides are always in sync.

[dry bear]

but isn't the packet that's being sent going to be super big if it needs to contain info about all the packet types? maybe I'm missing something

[brisk spruce]

it does not because protobuf has some kind of voodoo magic byte marching stuff going on

it does weird fancy stuff to serialize extremely fast and extremely small

you dont need to worry about the "how" part because people way way smarter than all of us solved that part for you, like, PHD engineers at google built this stuff and released it open source

[scenic forge]

If you have one message type “1 byte (message type) + 4 bytes (int health) + 4 bytes (int life)” and another message type “1 byte (message type) + 8 bytes (double some data)” the message is just 9 bytes not 17 bytes

Based on the first byte it will interpret the next 8 bytes differently.

[brisk spruce]

effectively it "re-uses" bytes and does some wild compression stuff too

[dry bear]

could you show me an example of schema for different packet types?

let's say I have a type of message called "PlayerPos" that has a string and a Vec3

and another message called "ChatMessage" that has two strings.

how should I put that inside the schema file?

sorry if it's too obvious

[brisk spruce]

The link I posted above has examples

#archived-code-advanced message

[dry bear]

would this be the right way to do it? this is the flatbuffers schema

[brisk spruce]

I have no idea about flatbuffers

[dry bear]

it's the same concept as in protobuf definition

hmm I don't know if flatbuffers has the oneof property

[brisk spruce]

protobuff doesnt have a need for the enum part effectively, it automatically generates it

[dry bear]

I think I could actually do something like this

table EventOne  
{  
  id:uint;  
  timestamp:ulong;  
  adress:string;  
}  

table EventTwo  
{  
  id:uint;  
  timestamp:ulong; 
  strength:float;   
}  

union Events {EventOne, EventTwo}  

table EventHolder  
{  
  theEvent:Events;  
}  

root_type EventHolder;  ```

the union basically says that there will only be one of them

[sweet vessel]

I'm trying to create Procedual Island Maps. I can Generate the Procedual Maps itself but I'm struggeling to figure out how to apply the Falloff for the islands

[arctic lake]

I figured out how to get access to my phone's camera using unity. The problem is that while my phone is in portrait mode, my phone's camera is in landscape mode. So like, I have to tilt my head in order to see correctly with my camera. Does anyone know a way to fix this?

[dry bear]

omg it works

so cool

[jolly token]

Looks like you can use gRPC with flatbuffers as well if you want to automate that stub part

https://grpc.io/blog/grpc-flatbuffers/

[dry bear]

I think this is to be able to call a function from the server in the client?

not sure how that would work tbh

[jolly token]

Well I haven't tested gRPC on IL2CPP
But RPC is just basically exchanging packets

[obsidian coyote]

how can i tell where these allocations are coming from? When I look purely at the CPU usage module and the call Hierarchy i dont see any allocations at all there?

[dusty wigeon]

By looking at the CPU Timeline

[obsidian coyote]

i was, there was 0 mem allocations in it

[dusty wigeon]

The hierarchy section should have a column with GC.Alloc

[obsidian coyote]

that said, i was profiling with the standalone process option to try and eliminate and perf overhead the in-process version has, but it seems it misses some stuff

[plucky laurel]

switch to deep profiling

[dusty wigeon]

Also, 6kb sometimes is not something unusal.

[obsidian coyote]

looks like its caused by this

[plucky laurel]

deep profiling will show you exact method that generates

[dusty wigeon]

You also have the option to add Profiler.BeginSample to refine the search if Deep Profiling is not an option

[dry bear]

@jolly token I created a template to avoid repeating the same code over and over, I can reuse it for multiple packet types now 🙂

[obsidian coyote]

appears to be caused by disabling a UI element, kinda wild that unity would cause an allocation when you disable a built in component type :S

[dusty wigeon]

Unity does a lot of questionable allocation.

[plucky laurel]

graphic is a base type for a lot of third party components

tmp etc

i still consider tmp a third party, just realized

[obsidian coyote]

i was intentionally pooling my game objects for recycling which works as intended on most things, but i decided to use unity's canvas for health bars with the slider component

[plucky laurel]

are you reparenting them when releasing to pool?

[dusty wigeon]

Canvas can be tricky If I remember correctly.

You want to look into https://unity.com/how-to/unity-ui-optimization-tips#pool-ui-objects-smart-way

Solution: Disable the object first, then reparent it into the pool.

Additionally, disabling the Canvas component does not trigger the expensive OnDisable/OnEnable callbacks via the Canvas hierarchy.

[plucky laurel]

my thought was more about the transform type, i am not sure but reparenting a rect tr to a normal tr can cause allocation?

[obsidian coyote]

i disabled the healthbar stuff entirely, looks like something is still allocating memory but now it wont tell me what, even with deep profiling :S

[plucky laurel]

collapse player loop

is there anything else? editor or something

[plucky laurel]

scrub it maybe some spike will show something

[dusty wigeon]

Maybe some native allocation ?

I know that the memory profiler sometimes is not able to correctly see every allocation.

I had to use the Memory Tracker for the Nintendo Switch to find out a leak that was not showing in the Memory Profiler.

[obsidian coyote]

when i scrub it its always 0 :S

maybe its on one of these other threads that unity appears to create, i checked a bunch, but didnt see any allocations tho, maybe i missed them though

[plucky laurel]

check them all

diligently, we'll wait

🙂

[obsidian coyote]

LOL

im guessing even if i do somehow figure out what it is, its likely built in unity bloat and i have no way of doing anything about it, since im still seeing the spikes even when ive disabled almost everything in my scene 😐

[plucky laurel]

i feel the same way

[obsidian coyote]

and here i wanted to flex a 0b allocation game to the other game devs i work with lol, oh well :S

[plucky laurel]

well your code is 0, it counts

[long ivy]

are you profiling an actual build? profiling in the editor is more like a guideline and can contain phantom problems and other inaccuracies

[obsidian coyote]

It was just in editor , so that's fair, I'll have to check vs a build later

[tropic stag]

I deleted my plist file (on osx) and my standalone build is still reading a value, I think I'm deleting the wrong file. is there a way to Debug.Log the playerprefs path from the standalone build?

[plush narwhal]

Only recently have I been getting into multithreading (with system.threading, I am aware the jobs system is a thing, it just doesn't fit my needs) and I have figured out how put something on a seperate thread, but that doesn't make the process any faster.

A particularly long part of my procedural generation system is a dictionary generator which consists of:
dataDictionary = await CalculateWorldChunkData(worldGenerationData.chunkDataPositionsToCreate);

calling this task:

    {
        ConcurrentDictionary<Vector3Int, ChunkData> dictionary = new();

        return Task.Run(() =>
        {
            foreach (Vector3Int pos in chunkDataPositionsToCreate)
            {
                if (taskTokenSource.Token.IsCancellationRequested)
                {
                    taskTokenSource.Token.ThrowIfCancellationRequested();
                }
                ChunkData data = new(chunkSize, chunkHeight, this, pos, WaterThreshold);
                ChunkData newData = terrainGenerator.GenerateChunkData(data, Seed);
                dictionary.TryAdd(pos, newData);
            }
            return dictionary;
        },
        taskTokenSource.Token
        );
    }```

How might I split this up into more than one thread?

[flint sage]

Try using Parallel.Foreach

[plush narwhal]

so would

            {
                if (taskTokenSource.Token.IsCancellationRequested)
                {
                    taskTokenSource.Token.ThrowIfCancellationRequested();
                }
                ChunkData data = new(chunkSize, chunkHeight, this, pos, WaterThreshold);
                ChunkData newData = terrainGenerator.GenerateChunkData(data, Seed);
                dictionary.TryAdd(pos, newData);
            });```

work instead of this?:
```foreach (Vector3Int pos in chunkDataPositionsToCreate)
            {
                if (taskTokenSource.Token.IsCancellationRequested)
                {
                    taskTokenSource.Token.ThrowIfCancellationRequested();
                }
                ChunkData data = new(chunkSize, chunkHeight, this, pos, WaterThreshold);
                ChunkData newData = terrainGenerator.GenerateChunkData(data, Seed);
                dictionary.TryAdd(pos, newData);
            }```

[flint sage]

Looks vaguely okay

But I'm not debugging your code over discord

[plush narwhal]

lmao, I'll try running it

[plush narwhal]

WOAH WTF my generation happened near INSTANTLY! does parallel.foreach make use of all available therads or is it some weird amount?

is there a way to limit the amount of threads used as well?

[flint sage]

There's an overload with ParallelOptions

[plush narwhal]

ah thanks

[flint sage]

By default, methods on the Parallel class attempt to use all available processors

[plush narwhal]

im assuming thats including the threads used by unity cause it is causing some lagspikes, so im gonna limit the threads allowed

[novel plinth]

async/await isn't multithreading

[plush narwhal]

Im using system.threading and tasks

with async/await

[novel plinth]

oh mb 😅 didn't see the whole conversation

at this day and age, you'd just use threadPool to save you some headache from the good ole Thread in c#

[flint sage]

Their goal doesn't seem to be off load the work to a different thread but rather parallelize the work

[novel plinth]

oh ok

[novel plinth]

The easy way, you can use factory method for this and set TaskCreationOptions.LongRunning it will create a new thread (this iirc, is undocumented)

oh they seem to update the doc. Yeah, see LongRunning part there https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.taskcreationoptions?view=netframework-4.8

just becareful when using factory method

[plush narwhal]

Ill look into that for the other parts i need to multithread but so far, just parralising my foreach loops was enough. Thanks

[candid lodge]

hey! is there way find mouse position on mesh without collider?

[dusty wigeon]

You gotta do the collision detection yourself.

There is not really a reason to not have a collider on something that you want to collide with or detect.

[tiny pewter]

project the mesh on a plane with normal equal to camera.transform.forward (you will get many simple 2d shapes) then run point in polygon algorithm,
i think you can rotate every point (by multiple a rotation matrix) and input.mouseposition on that plane so that every point is located on xz, xy of yz plane, easier to work with

ofc the easiest way is to rely on the unity bulti in bug free (maybe) physics engine

[dusty wigeon]

Or use the following on all triangle of the mesh:

private static bool LinePlaneIntersection(Vector3 linePositionA, Vector3 linePositionB, Vector3 planePositionA, Vector3 planePositionB, Vector3 planePositionC, out Vector3 result)
    {
        Vector3 P01 = planePositionB - planePositionA;
        Vector3 P02 = planePositionC - planePositionA;
        Vector3 P03 = planePositionC - planePositionB;
        Vector3 IAB = linePositionB - linePositionA;
        float sqrMagnitudeIAB = IAB.sqrMagnitude;

        Vector3 normal = Vector3.Cross(P01, P02);
        float denominator = Vector3.Dot(-IAB, normal);
        if (Mathf.Abs(denominator) < 0.001f) { result = new Vector3(); return false; }

        result = linePositionA + IAB * Vector3.Dot(Vector3.Cross(P01, P02), linePositionA - planePositionA) / denominator;

        if ((result - linePositionA).sqrMagnitude > sqrMagnitudeIAB || (result - linePositionB).sqrMagnitude > sqrMagnitudeIAB) return false;
        if (Vector3.Dot(normal, Vector3.Cross(P01, result - planePositionA)) < 0) return false;
        if (Vector3.Dot(normal, Vector3.Cross(P03, result - planePositionB)) < 0) return false;
        if (Vector3.Dot(normal, Vector3.Cross(-P02, result - planePositionC)) < 0) return false;

        return true;
    }

[candid lodge]

I am not making a game. I have model who is 1:1 to real life. And i want to make measurements. Gameobjects are to complicated. I have reason for that.

[dusty wigeon]

That as nothing to do with if you are making a game or not. If you are not using GameObject for the rendering, you can still use GameObject for the collision.

The function can do the collision detection for you given a collider: https://docs.unity3d.com/ScriptReference/Collider.Raycast.html You can also use the Physics API directly.
Also, the function I gave earlier can be use to resolve the collision on the mesh manually.

[candid lodge]

how i can be sure that i put collider right? and how i can put collider right if that isnt regular shape?

[dusty wigeon]

By using a mesh collider

[candid lodge]

lol ty XD

[real blaze]

is anyone kind enough to check the size of their Burst package folder ( com.unity.burst )? it's been downloading for some 5 minutes now, I wonder if something's went wrong

in Windows, it'll be at C:\Users\[user]\AppData\Local\Unity\cache\packages\packages.unity.com\com.unity.burst@[version]\ where [user] is your username and [version] is the version of Burst you've installed

[scenic forge]

~800 MB for me.

(Btw you might want to move package cache out of your system drive if you worry about size or frequent read/write hurting your SSD)

[dusty wigeon]

1.6.5 -> 791MB.
1.8.4 -> 680MB.

[brisk spruce]

Task.WhenAll() is your friend

Something like

var tasks = foos.Select(DoTheThingAsync)
return Task.WhenAll(tasks);

[wispy prawn]

With the AStar Pathfinding Library, is there any way to Scan the area async? What i m trying to do is something like this
async void Update() { await UpdateGraphMethod(); } private async Task UpdateGraphMethod() { await Task.Run(() => { AstarPath.active.Scan(AstarPath.active.data.gridGraph); }); Debug.Log("Complete"); }
(I know it is nonsense to call it in the Update Method but this is for demonstration purposes) However when using this i get the error: UnityException: get_isPlaying can only be called from the main thread. Is there a way around that?

[sly grove]

Task.Run runs things in a background thread

don't start it with Task.Run

I don't think it supports an asynchronous/background thread approach

Ok apparently it does:
https://arongranberg.com/astar/docs_rvo_fix/class_astar_path.php#a41c928232446156b4b13e097c18918d2
Looks like it's a "pro" feature

[wispy prawn]

Thanks. I've seen that before, i was wondering if there is a way around that or a better way to update the grid.

Is the Unity Navmesh a better alternative?

[sly grove]

what do you mean "a way around that"?

Like a way around paying for pro?

your options are:

• pay for the pro version of this asset
• use an alternative navigation asset
• write your own pathfinding

[dry bear]

Hey guys, I am trying to build the .dll from https://github.com/google/flatbuffers/tree/master/net/FlatBuffers

But when I add this dll to Unity I get the error The type or namespace name 'FlatBuffers' could not be found (are you missing a using directive or an assembly reference?)

should I do anything else besides opening FlatBuffers.net35.csproj with visual studio and building?

and copying this 2 files to unity

[dusty glacier]

Hi, does anyone know how I can detect collisions between two boxes in 2 dimensions? The information I have about the boxes is as follows: their position, size, and rotation on one axis.

I need to calculate the vector that one box needs to move to stop colliding

[sly grove]

any reason not to use Unity's built in 2D physics?

[dusty glacier]

I am unable to use it because the movement is not physics-based.

[sly grove]

Why does that make you unable to use it?

Give your object a kinematic Rigidbody2D and a BoxCollider2D

then you can use Physics2D.BoxCast to detect obstacles

[dusty glacier]

but I also need to get a vector movement that will correct the collision

[sly grove]

so?

What would be stopping you?

[dusty glacier]

hold on, let me explain what im trying to do

I am making a controler for procedural walking and i have to check if the feet are hitting each other

i can ignore the Y(up) axis due to cicumstances

[sly grove]

100% the case for BoxColliders and Physics.BoxCast or Physics.OverlapBox

[dusty glacier]

i used Physics.Overlap before but it doesn't return a vector to fix the collision, am I missing something?

[sly grove]

BoxCast will

though im not actually sure what you mean by that

what does "a vector to fix the collision" mean?

[dusty glacier]

for example when the physics engine detects overlap betwen colliders

[sly grove]

Actually you know what

[edgy urchin]

i agree

[sly grove]

This is exactly what you want:
https://docs.unity3d.com/ScriptReference/Physics.ComputePenetration.html

[dusty glacier]

it corrects their position

[dusty glacier]

damn how did I not find that

[sly grove]

idk

you ruled out the physics engine too soon?

[dusty glacier]

thanks man

[edgy urchin]

can you help me with something i cant find an appropriate channel to ask

please

[sly grove]

https://dontasktoask.com/

[edgy urchin]

so like

what do i do

[sly grove]

#💻┃unity-talk

[edgy urchin]

ty

[echo pond]

I am currently trying to implement the unity jobsystem in an pice of code that iterates through multiple behavior classes. That all imply funktions to calculate their own ContextMap. The Base funktion (Not jobifyd) looked like this: ```csharp
public void FindMoveDirContex(List<baseBehaviour> Behaviours, AIData aiData)
{
float[] evade = new float[8];
float[] interrest = new float[8];

    //need replacment to execute a series of Behaviours
    foreach (var Behaviour in Behaviours)
    {
        (evade, interrest) = Behaviour.CreateContextMap(evade, interrest);
    }
    ...rest of code

}

[sage radish]

It depends on what each CreateContextMap is doing, because it must be thread safe. Normally, it's not possible to use classes in jobs. It's impossible if you want to use Burst, but can be worked around if you only need jobs.

[echo pond]

thanks for the answer i have an idea on how to fix my issue.

[sly grove]

You can't use managed types in jobs. That includes your float arrays, your lists, and probably baseBehaviour and AIData depending on what those are. You definitely won't be able to use anything involving abstract classes.

you should probably go through some simple "getting started with the job system" style tutorials first to get an idea of how it works

[tiny pewter]

You cant even jobify or parallel your code in any way, the create context map is depend on previous result, that means they must wait before previous one finish

[sly grove]

I'm not sure this is true. I think what they meant to do was something like:

(evade[i], interrest[i]) = Behaviour.CreateContextMap(evade[i], interrest[i]);``` in a loop

but maybe

[tiny pewter]

But the method in uml return two array

[static warren]

Can anyone help me recreate the viewfinder mechanic in unity?

[tiny pewter]

Though array is a reference type, no need to be returned, the length of return array should be same as input i think

[sleek marsh]

is there anyway to make the top job NOT get scheduled on the main thread?

[echo pond]

thanks for the tipp i will do that.

[brisk spruce]

So I have 2 class sets, one is a bunch of POCOs implementing INotifyPropertyChanged that is already hooked into all of their Properties, most of which are public get/set, the other is a set of MonoBehaviors with Serialized fields.

Both "sets" of classes have the same structure in terms of names, just as an example here you can see some of this code, the field names match the property names between the two.

I want to figure out a "clean" way to auto hookup every single field of my MonoBehaviors to implicitly subscribe to the GameStates INotifyPropertyChanged event, such that if GameState changes, the field matches it too

Screenshot is example of my code in the monobehavior

Im thinking I can prolly do some fancy reflection stuff perhaps, with expression trees, I actually already have a handy method on GameState that lets me bind an Expression<Func<GameState, T>> to a matching Action<T> or Action that I can act on

thoughts on what isnt a brutal way to achieve this perhaps?

Alternatively:

does applying SerializeField attribute to stuff add any overhead if the class is not serialized in the editor, in publish mode?

I could potentially just simply re-use the GameState itself, and slap SerializeField somehow on it... maybe, I actually dont know if there is a way though to properly make my Event notifications bind to it right though, and I worry that because this is purely for debug purposes (and wont be included in publish mode), adding attributes and whatnot to my "published" classes will add overhead to the published game anyways, so its better to instead have a second "debug" monobehavior that does this work, and then wont be included in the actual release

this is currently what I have, it feels kinda gross and cumbersome, but it certainly works

https://hatebin.com/kkabrfkztj

But it means whenever any property changes on GameState, the entire set GameStateDebug fields reloads, and inversely when any of the GameStateDebug fields gets set, it pushes to the entire GameState, would be nice if I could specify which of the fields it was and do expression stuff to make this a bit more specific

[slender stag]

I am making a tank game and am making a turret with a flamethrower (that will be eventually networked), how do I check what the flames hit? (Flames don't reach destination instantly, and particle system is used for decoration, not logic, I guess I could make a deterministic invisible particle system but not sure of the implications of it)

[half swan]

Could make a collider the shape you want and check for collisions

[slender stag]

Flames ha e a delay before they reach a point which the enemy could dodge

Ima probrably use particles and turn it into a minmax thingy

Is it efficient to grab particle positions and draw a raycast toward it... or make an overlapping sphere at the point of the particle?

[half swan]

You can. But you can also scale the collider out slowly

I dunno about efficient, depends on how many raycasts

[half swan]

Looks like there is an OnParticleCollision method actually.

It sends one message per particle collision

[obsidian coyote]

woo, finally truely 0 memory allocation, looks like it was some unity stuff that went away when i profiled a build, but also there were a few .toString()'s being called on some numbers that were allocating strings, so i replaced them with a pre-allocated lookup table. Not sure if there is a better way to handle dynamic UI text for things like statistics etc that are being updated in real-time that can be done to prevent string allocations 🤔

[untold moth]

A little bit of allocations are not that critical you know 😅

Unless you're planning to run your app on a 20+ y/o hardware. At which point there are probably other more important problems.

[obsidian coyote]

lol, i know, its more of a flex then anything at this point, one of my bosses is really anal about memory allocations and the main game i work on at work is well past the point of being able to resolve most of them (over 5 year old code base with many devs working on it), so its fun to rub it in a bit when my game has 0 lol

[slender stag]

That's a good flex... my code crashed Unity a few days ago because of recursion of a heavy function (Patched it but dunno why I had a heavy recursive function to begin with)

[slender stag]

How would you network that though, cause there's no way to make a particle system emit following a seed so it could be that a person gets lucky and flames go a certain way but on the person receiving the damage the flame went to opposite way (dodged in a way)

[obsidian coyote]

ah yeah, stack overflows can be a pain, they can prove quite elusive when introduced in a large code base. I remember one time, we had one that was never an issue except when you had debugging open, and when you tried to breakpoint in the class, unity would instantly freeze then crash... we found out it was caused by an unused bit of improper code public int Something { get { return Something; } } this sorta setup, where the return value was supposed to be lower case so when visual studio tried to evaluate it for the debugger everything would crash lol

[half swan]

Didn't know networking was involved (edit: i'm super dumb, you said it was). Don't know anything about it, sorry.

[obsidian coyote]

it was a 7800 line file as well, and that getter was somewhere around the middle of it 😐

[slender stag]

That's fine, your not an AI chat bot lmao (and yeah networking is an asshole sometimes, whoever invented latency was also an asshole)

(for other people reading, latency was discovered, not invented)

[tall ferry]

you wouldnt really need to if the server was handling collisions anyways. Just make sure the flames are visually accurate for clients

[slender stag]

But, also don't want playing seeing themselves start burning before the flame actually hit them

[tall ferry]

if this is a #archived-networking issue then u can find relevant discords pinned in there. though something like this really shouldnt be that much of an issue, if you notify the client that they're burning, you shouldve already started the flame visuals by then

[scenic forge]

You can use StringBuilder, won't be zero alloc though but small enough.

[next marsh]

What's the ""industry standard"" approach to circle-circle overlap resolution? I'm curious how the problem of infinite resolutions is solved

I.e. a circle getting juggled between two other circles to either side

(In 2D)

[dusty wigeon]

To be honest, I'm not sure I understand the need of such structure. What you are trying to achieve here ? What is the end goal ? Why can you not directly use GameState ?

[novel plinth]

Ditch out stringBuilder and use communitytoolkit's StringPool instead 🥹

https://learn.microsoft.com/en-us/dotnet/communitytoolkit/high-performance/stringpool

[scenic forge]

Span it up.

[dusty wigeon]

I have no idea what you are referring too. I also doubt that someone here would truly know what is the "industry standard" for such things. After all, we are using Unity, not making our own engine. (I also found no reference online)

[scenic forge]

TIL this is also a thing https://github.com/Cysharp/ZString

But yeah super micro optimization territory, pretty sure this amount of allocation is irrelevant for incremental GC anyways.

[novel plinth]

this is not zero alloc in certain scenarios btw, I tested this

StringPool tho.. the alloc only on the 1st time when filling the cache

after that zero alloc for days

[scenic forge]

I see.

[next marsh]

There are quite a few folk around here with a fair amount of programming experience, specifically in C# and in game development. If there's going to be someone who knows in a server it'll probably be here.

As for ""industry standard,"" see to the double quotation marks on ""industry standard.""

The proper term is collision resolution if you're googling for it.

(Depenetration specifically)

Or circle packing may apply somewhat

[plucky laurel]

https://github.com/erincatto/box2d/blob/main/src/collision/b2_collide_circle.cpp

[dusty wigeon]

If you interested, Unity use Physx which implement Physics.ComputePenetration (PxGeometryQuery::computePenetration) I guess whatever method Physx use would be the industry standard.

[next marsh]

Interesting, I'll dig around there-- cheers!

[brisk spruce]

It's a debugging tool on a game object that I can use the editor to directly manipulate any piece of the gamestate to test stuff and verify its wired up as expected.

GameState processes mutations via a method on the setters of its properties, and is a POCO, so I need some kind of intermediary MB to interface with it

And AFAIK you can't serialize full properties.

I can't serialize the backing fields as then the mutation events won't fire, have to do it via the public properties

[dusty wigeon]

This seem so complicated for a debugging tool... I usually have a console where I can simply type command to execute. There is also the possibility to write your own Custom Editor (No need for the object to be serializable) or even overwrite the default inspector to print/format all the value of a given object.

[brisk spruce]

The object in question is a POCO, so I'm not aware of any way to get around the fact I still would need some MonoBehavior interface between the POCO and the editor, no?

[dusty wigeon]

You do not need a MonoBehavior nor need that it is serializable.

Use a custom editor

[brisk spruce]

Custom editor is interesting, can you hook it up to INotifyPropertyChanged event?

[dusty wigeon]

Custom Editor are C# code. So I guess

[brisk spruce]

How does the custom editor "hook" into the specific POCO instance I am working with?

[dusty wigeon]

However, you do not need to hook yourself

Just read the value as is.

[brisk spruce]

Does custom editor already subscribe to if the property's value changes?

[dusty wigeon]

You are the one defining that. It can be by resolving the reference with static, or GetComponent, or even AssetDabaseStuff

[dusty wigeon]

You can check if a property has changed in the inspector or a custom editor. (If it has been changed through the editor)

[brisk spruce]

It's not a component or an asset

[dusty wigeon]

However, there is no bidirectional binding.

It is a C# script

[brisk spruce]

You can't "GetComponent" it, it's a POCO

[dusty wigeon]

You can GetComponent something that has a reference to your POCO

[brisk spruce]

Yeah I need bidirectional binding, that's what my code does atm

When I modify the inspector, it updates the GameState. And when the GameState changes, it updates the Inspector

[dusty wigeon]

There is no need binding in the case of an Editor

You can still update or be update

Without binding directly

[brisk spruce]

I'll check it out

[dusty wigeon]

By example, you can set the current value in public static string TextField(string text, params GUILayoutOption[] options); then retreive the new value afterwards.

GameState.Value = EditorGUILayout.TextField(GameState.Value);

If I am not wrong, this is the IMGUI (immediate mode graphic user interface) paradigm.

[upbeat path]

actually no, this can generate errors, you would need to use a Delayed field

[dusty wigeon]

How so ?

The slider works perfectly fine.

https://docs.unity3d.com/ScriptReference/EditorGUI.Slider.html

[upbeat path]

because in your example GameState.Value will be set and the code will process for each character typed into the text field. What you want is for that to be processed when the typing is complete which is what Delayed does

[dusty wigeon]

Even the documentation use the same approach for https://docs.unity3d.com/ScriptReference/EditorGUILayout.TextField.html

Oh I see.

I was not thinking about that particularly

But, yeah, gotta be careful about those case.

[brisk spruce]

noted, Id have to look at how this actually looks in the code because it seems like it might result in even more code

[upbeat path]

it should result in less validation rather than more because you will have a stable state

[dusty wigeon]

The idea is to use reflection to construct the EditorWindow

[brisk spruce]

mostly Im just interested in making that code easier to maintain

[brisk spruce]

yeh if this is possible then I am interested

[upbeat path]

wtf, this is game dev, who cares about maintenance?

[dusty wigeon]

I mean, for your own little project, maintenance should not be high in priority.

[brisk spruce]

this is a pretty big object and everytime I add a property, right now I need to:

1. Add a matching field to the DebugGameState
2. Bind the GameState -> DebugGameState write for that Property->Field
3. Bind the DebugGameState write for that Field->Property

Which is a fair bit if I am planning to have a lot of props on these

and GameState has "child" classes as you can see, and I have to make matching debug "child" classes too when I make a new GameState child

so if I can just use reflection to sort of auto populate the editor, auto bind between the two, then when I add a new field to my game state it will "just work" and automatically show up, working, in the debug inspector tool

step 1 is I am gonna test if Zenject is smart enough to inject into an EditorWindow, if so I think Ill start with that, rather than an empty object in my scene

[merry moat]

my guy just flies in the air instead of sticking down to the ground. help

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

[cloud crag]

is it ok to use System.Linq ?

does it have garbage and should I avoid using it or ?

[merry moat]

this is the inspector btw

[novel plinth]

Depends, if it's not frequently accessed/queried it should be fine. but it's your pick
also NOT ALL Linq methods create garbage, e.g : AsEnumerable, ElementAt, ElementAtOrDefault, Single, SingleOrDefault

those are free pretty much

[dusty wigeon]

Do not use Linq in frequently update code and you should be fine.

[dusty wigeon]

#💻┃code-beginner

[normal tinsel]

I'm trying to write my first tests in a project that uses VContainer. I can't seem to find any good examples on the internet so I asked ChatGPT about it and the responses are kinda not helping because they are just wrong.
Here is the code he suggested:

public class GameManagerTests
{
    private IContainer container;

    [SetUp]
    public void SetUp()
    {
        // Create a new container in each test to isolate dependencies
        container = new ContainerBuilder()
            .Register<PlayerController>(Lifetime.Singleton)
            .Register<GameManager>(Lifetime.Singleton)
            .Build();

        // Register the container as the application root
        container.Validate();
        LifetimeScope.Root = container;
    }

    [TearDown]
    public void TearDown()
    {
        // Clean up after each test
        container.Dispose();
    }

    [Test]
    public void TestGameManagerInitialization()
    {
        // Arrange
        var playerController = container.Resolve<PlayerController>();
        var gameManager = container.Resolve<GameManager>();

        // Act
        playerController.Initialize();
        gameManager.Initialize();

        // Assert
        Assert.IsTrue(playerController.IsInitialized);
        Assert.IsTrue(gameManager.IsInitialized);
    }
}

The problem already starts with IContainer which does not exist even in the VContainer namespace so naturally it does not have Validate() and Dispose() but also the Resolve<> methods.
Can someone guide on this?

[sly grove]

I don't really know what to do for you here other than point you towards the documentation / getting started guide:
https://vcontainer.hadashikick.jp/getting-started/hello-world

It sounds like you've tried little other than asking ChatGPT for help, which predictably resulted in nonsense.

[fresh salmon]

(+ asking or answering questions generated by AI isn't allowed here)

[misty glade]

Anyone have a DOTween script or snippet for a nice little "pop out of a box and bounce a couple times" tween? Like - something like this that looks like it respects gravity (pardon the mspaint):

My google-fu is bad

I think easeOut in the X direction and easeOutBounce in the Y direction, but with a "kick" upward..

Additionally, I'd like it to "respect" a bounding box (if it hits the boundaries, it changes direction). Physics/rigidbodies seems like overkill for this ..

[brisk spruce]

Are you wanting to be able to configure stuff like distance, bounce count, first bounce height, etc?

Sin wave with a height modifier using something like % pi or whatever should work

[misty glade]

Probably, yeah. Just minimally so, though. I'm using this for "resources" that pop out of a 2d tile when destroyed. Player would have to click on the resource icon to collect it. I think I might have some tiles that have multiple resources that pop out, so they should probably have some randomness to the parameters

Sin looks pretty bad - I used it before and it was robotic looking.. It definitely needs to be quadratic.. unless my math is bad and sin with damping is parabolic..?

[brisk spruce]

so prolly want

float distance
int bounceCount
float heightMulti
float chaos

for params

[misty glade]

hm, probably don't need all that, just an initial X and Y velocity (damping and "gravity" can be fixed)

[brisk spruce]

so prolly just a vector then

[misty glade]

Maybe rigidbodies is gonna be easier than trying to .. recreate gravity and handle bounding boxes and damping and all that nonsense

[brisk spruce]

is this a sidescrolling game or 3d or...?

cause if its sidescroller or 3d, yeah Id just use actual rigidbodies with very simple hitboxes (prolly just a sphere) with rotating disabled so it purely translates but wont roll around

[misty glade]

2d isometric tile game

[brisk spruce]

oh yeah rigidbodies dont have much overhead in 2d land

[misty glade]

isometric "maybe" - for prototyping we're just using 2d overhead

[brisk spruce]

particles maybe might even be what you want if they are purely visual

Im like pretty sure you could do like, a particle emit that spits out the sprites and they collide with your terrain layer

yeah actually now Im pretty sure you want a particle emitter now that I think about it, if its aesthetic only

[misty glade]

it's not unfortunately - the player would have to tap on the icon after to collect it.. I think the best way to describe it would be like minecraft mining/farming:

• Player taps several times on a breakable tile to "mine" it.
• One or more "resources" pop out - they're no longer tiles, but "floating" icons that a player taps to collect.
• Once tapped, then we can use a particle effect (probably a particle attractor and sprite icons) as the resource "flies into" the players inventory.

I'm looking for a tween/solution for that second part.. I'm gonna try rigidbody2d and see if it looks ok

I'll see if I can find a video of what I did before in DOTween - I thought it looked kinda junky

I can't find the exact clip but the "jump" of the little slime in the middle was a DOTween "jump" tween and it doesn't look realistic for gravity at all

[regal lava]

I keep seeing dotween passed around a lot. Reading the site it seems like it lerps values for you? I'm not exactly understanding its usage.

[sly grove]

yeah pretty much

it's a fire-and-forget thing.

[regal lava]

hmm

[sly grove]

You can say like "Move this object to this position over 10 seconds"

and it does it

with lots of options of course

it basically does what beginners think the "Lerp" function actually does

[misty glade]

Yeah, it's just a tweening library. A couple years ago I wrote my own and after seeing dotween, I realized they just did it better. There's some hassles with it but overall it's pretty good.

My API surface for my own tweening library was so bad

[sly grove]

yeah it's nicely done

and performant

It's kinda one of those things that probably should be in every project. Like Cinemachine

[misty glade]

that was my tweening method

You'd make your own coroutine, enumerate over some timespan and update whatever float you cared about.. it was a mess. DOTween you just do something like:

float duration = 2f;
Vector2 end = new();
Ease easeType = Ease.OutQuad;
gameObject.transform.DOMove(2f, end, easeType);

[regal lava]

Looks decent for 3D text animation since I've been just coding that all in normally, and some using the timeline

[misty glade]

i think that's a paid feature, can't recall

[regal lava]

WELL

[misty glade]

Oh, no, it's not - DOText

I rolled my own but probably could have used theirs as well

[regal lava]

That's legacy, and it looks like tmp does require the pro version

but it does basically what my animation scripts do anyway it seems. Changes the vertices of each character one by one

I'll probably snag it though anyway for funnsies

[misty glade]

I probably don't even really need a bounce... shrug This looks maybe ok? Realized I can't use Rigidbody2D cuz I'm doing all this in the UI layer so I'll need to do it by hand.

        public AnimationCurve AnimationCurveGravity;
        private const float PopDuration = 0.8f;
        private const float PopMinY = 200f;
        private const float PopMaxY = 800f;
        private const float PopMinX = -500f;
        private const float PopMaxX = 500f;

        private void OnEnable()
        {
            float y = NumberUtils.NextFloat(PopMinY, PopMaxY) + transform.localPosition.y;
            float x = NumberUtils.NextFloat(PopMinX, PopMaxX) + transform.localPosition.x;
            transform.DOLocalMoveY(y, PopDuration).SetEase(AnimationCurveGravity).Play();
            transform.DOLocalMoveX(x, PopDuration).SetEase(Ease.Linear).Play();
        }

Suggestions to improve it?

The curve is just a parabolic 0 -> 0.5 -> 1

[random spruce]

Anyone got any idea of how I could edit a scriptable object in build version? (Have a gui like the one in inspector to edit). Else do I have to create a custom GUI to edit it?

[regal lava]

You can edit a SO freely as long as you have a reference, but remember that editing will affect all objects referencing that instance.

[upbeat path]

https://assetstore.unity.com/packages/tools/utilities/scriptableobject-pro-218340

[regal lava]

Ah, sorry glanced over your question on my phone, but yes, you'll probably want to make your own debug menu for the build and create a gui for it.

[random spruce]

not exactly what I had in mind, but thanks for the help!

[random spruce]

Yeah, that's what I thought. Sucks there's no easy way to do it, guess its never easy haha

[next marsh]

Out of curiosity, what's the reason behind being unable to call Physics2D.OverlapCircleNonAlloc from outside the main thread?

I have many things in my scene which I want independently to call it, but any form of parallel computation is out the window because of it

[flint sage]

Part legacy, part consistency, part being a fuck ton of work when you have random people calling random things

[next marsh]

Are there any non-borderline-deprecated alternatives?

To clarify just in case, I'm trying to get all objects within a given radius of each object

[flint sage]

It's not borderline deprecated?

If you need to do so many physics calls to figure out whether things are nearby then likely that isn't the right solution

[untold moth]

Most unity API would fail outside of the main thread. In fact that's the same for most game engines. Mainly because you want to avoid race conditions.

[flint sage]

Most scripting layers at least

[untold moth]

You can look at DOTS physics if you want parallelism, though it might require you to remake a huge part of your game.

[magic badge]

Is here anyone who have used unity cloud save?? I have used it and everything is working fine. But I want to access other players data using their id any idea hoe to do it??

[fallow eagle]

Might be outdated but google tells me this : https://forum.unity.com/threads/accessing-other-players-data.1187131/

Another post talk about Cloud Code script https://forum.unity.com/threads/how-to-get-other-player-data-using-unity-cloud-save.1465370/

[magic badge]

If any one have experience with Unity Leaderborad UGS

I want to add these statements in try catch

var scoreResponse = await LeaderboardsService.Instance
.GetPlayerScoreAsync(leaderboardId);
Debug.Log(JsonConvert.SerializeObject(scoreResponse));

Which exception will work perfect to catch http 404 error

[fair locust]

I can’t believe I have to jump through hoops just to see logs…

And I don’t know what hoops to jump through

[tiny pewter]

the most stupid way is trying to reproduce the exception and catch it then debug.log to see it (it may be different from c# exception.....)

[fair locust]

There's no exception -- its just a blank project with one Hello component on an empty game object. I can't see the logs.

The real game is more complex with waaay more logging that I can't see.

[dusty wigeon]

#archived-unity-gaming-services

[magic badge]

okay

[fair locust]

Does anyone know how to see Debug.Log statements on a dedicated server build?

I have no idea what else to do

It doesn’t seem like it should be hard but… Maybe unity isn’t really meant for dedicated server builds if it’s complicated to get logs

What else can I do?

My real project has a bunch of log statements so I can know what’s happening.

My blank project except with the one component to see if I can see logs doesn’t work. What else do I need to do to see logs?

[dusty wigeon]

I know that you can access logs and see logs through the console, I've done it. For a windows and linux standalone server. However, I do not have access to the project at this time.

Maybe start by being sure that the logs are being correctly printed to the log files.

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

[fair locust]

When I redirect the logs to a file I only see the three lines I posted above.

You sure you were running a dedicated server build? That’s a new and different setting than building a standalone build and running it as a server

[onyx blade]

how would I check if the shape on the right fits into the shape on the left (the size of the tiles is not relevant).
I have a list of the white tiles, now I need to check if they fit in the larger grid. How would I go around approaching this?

I'm not sure what kind of logic I can use to make sure there is space to fit that shape.

[sly grove]

your shape should have a "root" element (one of the tiles). For a given position on the left board, loop through all of the tiles in the shape (as offsets from the root position) and see if they are empty

that's all

[dusty wigeon]

Yes, I was running a dedicated build on GameLift services. https://aws.amazon.com/gamelift/

[onyx blade]

I see, I want to use the positional data I have now in the 3x3 grid but select one as the root

I was trying to figure out dynamically assigning that root, but that may be too hard/impossible?

[sly grove]

like:

class Shape {
  List<Vector2Int> positionsInShape; // the L shaped piece would be like: [(0, 0), (1, 0), (0, 1)] for example
}

bool DoesShapeFit(Shape shape, Vector2Int position) {
  bool fits = true;
  foreach (Vector2Int part in shape.positionsInShape) {
    var toCheck = position + part;
    if (board.SpotIsEmpty(toCheck)) {
      return false; // if any spot is not empty, the shape does not fit
    }
  }

  return true; // all spots were empty
}```

[onyx blade]

lucky for me the shapes are designed to be squares on a grid, so all my shapes are inside a single List<Vector2Int>

[plucky laurel]

you can use RectInt

[onyx blade]

doesnt using RectInt make this more complicated than I need it to be?

[onyx blade]

that would work yeah, I will just need to adjust the position from the 3x3 grid to be relative to its root that I will need to define

not sure if I can define that root on the GUI that I have

[plucky laurel]

not sure, wont using a 2d array make it all less complicated?

[sly grove]

realistically you don't necessarily need to adjust any positions in your 3x3

you can alsways consider the root as the bottom left or top left or whwatever of that 3x3

even if there's not an "occupied" tile there

[onyx blade]

my root data is a bool[3,3]

[plucky laurel]

wont these make it all less complicated?

[onyx blade]

the puzzle grid is a 4x4

[plucky laurel]

yes and

a 2d array makes all kinds of problems easier to reason about and solve

[onyx blade]

they arent necessarrily in the same position tho 🤔
wouldnt overlap checking on 2D arrays fail if I try to place an object on different coordinates

[plucky laurel]

you can always start the for x for y loop at any index

[onyx blade]

like, this would not be valid if my logic isnt stupid

[plucky laurel]

effectively offseting the starting position

[onyx blade]

oh like that

hmm

yeah actually

im not sure which method is better

[plucky laurel]

the method that will make reasoning about problems easier

[sly grove]

The cute/clever way to do this is use bitfields

but - I shouldn't even have said that 🤣

[onyx blade]

lol

[sly grove]

inspired by sebastian lague's chess video

[plucky laurel]

bitmap is a 2d array or im misunderstanding

[sly grove]

that whole board is just 16 bits

you can represent all of that information in a ushort

[fair locust]

What did you have to do to see debug log statements?

[sly grove]

and if you want to check if two boards overlap you can do boardA & boardB and if it's 0 there's no overlap

so you can just take your piece, position it properly in the board, make a 4x4 ushort bitfield out of it

then just do pieceBitField & board and if the result is 0 there are no overloaps @plucky laurel @onyx blade

[plucky laurel]

that wont allow for easy offset

will have to write apis that create an offset

[sly grove]

eh

not difficult

anyway I'll move on from this as I provided a solution above that would work and the bitfield discussion will probably just add confusion for now

[plucky laurel]

benefit of bitfield is performance, the apis will be harder to reason about and harder to spot bugs, i understand its an elegant way to solve some problems but i would not use it for something so volatile

[dusty wigeon]

Nothing particular as I remember. But again, I was not only developper on the project.

[sly grove]

Yes it would definitely be the most performant approach I believe

[onyx blade]

thx for the input @plucky laurel @sly grove I will use on of the 2 earlier implementations as the bitfield stuff isnt something im that familiar with and is causing me a bit of confusion as you said.

nevertheless, might do some research on bitwise stuff for the future as that seems like an elegant, albeit harder solution

[fair locust]

So you're saying you can produce a dedicated server build with a single component that produces logs and then see the log statements?

I'd like to see you try

[dusty wigeon]

I said, that I have worked on a project that had logs printed. Not that I could do it from scratch.

[fair locust]

Gotcha. Think you could try?

[dusty wigeon]

I was just sharing the little knowledge I have on the situation you are experiencing.

[fair locust]

Cool cool

[dusty wigeon]

It is kinda long to do.

You would have better result trying to reach someone on the forum

[fair locust]

How long does it take you to make an empty project?

[dusty wigeon]

To build and setup everything. 15min ?

[fair locust]

Sounds like that's kinda long to do. Yea

[dusty wigeon]

Given that Unity is installed

[fair locust]

And given you have a computer

[dusty wigeon]

And that, without trying multiple configuration

Because It might not work out of the box.

As you seem to experience

[fair locust]

Does anyone know how to see logs on a dedicated linux server build of a unity project?

I have an empty project with one monobehaviour -- Hello. All it does it Debug.Log on Start and Update. I build a dedicated linux server build of the game.

When I run it in a linux container I never see logs (/app/game-server.x86_64). I've tried a few things (/app/game-server.x86_64 -logFile /dev/stdout, /app/game-server.x86_64 -logFile /app/server.log, flip the logging from "script only" to "full") but I never see logs in stdout or a log file.

All I see is this posted to standard out (or the log file) and then no more...

Mono path[0] = '/app/game-server_Data/Managed'
Mono config path = '/app/game-server_Data/MonoBleedingEdge/etc'
Preloaded 'lib_burst_generated.so'

It's an empty unity project from URP if that help. I'm confused why I can't see any of the logs in the Start and Update callbacks. I see them when I run the project from the unity editor.

[sly grove]

is it a development build?

Debug.Log gets stripped out for production builds

[fair locust]

Source? Presuming that's true how do folks usually output logs?
Edit:

Unity produces log files for the Editor, package manager, licensing, development players, and Hub. You can use these log files to understand where any problems happened in your application.

Unity adds all messages, warnings, and errors from the Console window
to the log files. To add your own messages to the Console window, and the logs, use the Debug class.
https://docs.unity3d.com/Manual/LogFiles.html

Rereading that paragraph does imply it. Well shit because the dev builds don't work due to some esoteric error I'll have to resolve. It's probably related to running on an M2 mac.

[sly grove]

development players
yeah

[worldly shale]

I have a problem when I send data to my server using unity networking I get error received no data in response I tried to look for solutions but none seems to work this is the code:

using System.Collections;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Networking;

public class RegisterSystem : MonoBehaviour
{
    public InputField emailInput;
    public InputField passwordInput;
    public InputField usernameInput;
    public GameObject panel;
    public GameObject verificationPanel;
    public Text statusText;

    public void RegisterUser()
    {
        StartCoroutine(SendRegistrationRequest());
    }


    private IEnumerator SendRegistrationRequest()
    {
        // Get the user input from the InputFields
        string email = emailInput.text;
        string password = passwordInput.text;
        string username = usernameInput.text;

        // Construct the URL with the parameters
        string url = "http://immortalgames.infinityfreeapp.com/RegisterUser.php" +
                     "?registerEmail=" + UnityWebRequest.EscapeURL(email) +
                     "&registerPass=" + UnityWebRequest.EscapeURL(password) +
                     "&registerUser=" + UnityWebRequest.EscapeURL(username);

        UnityWebRequest www = UnityWebRequest.Get(url);
        yield return www.SendWebRequest();

        if (www.result != UnityWebRequest.Result.Success)
        {
            Debug.Log("Error sending request: " + www.error);
            statusText.text = "Error: " + www.error;
            statusText.color = Color.red;
        }
        else
        {
            Debug.Log("Form upload complete!");
            Debug.Log("Server Response: " + www.downloadHandler.text);
        }
    }
}

[fair locust]

You have to add a new DownloadHandler to the unity web request (aka www.downloadHandler = new ...)

[worldly shale]

still getting received no data:

Curl error 52: Empty reply from server

0x00007ff6aecaa1cd (Unity) StackWalker::GetCurrentCallstack
0x00007ff6aecaf179 (Unity) StackWalker::ShowCallstack
0x00007ff6afc78061 (Unity) GetStacktrace
0x00007ff6b03337b2 (Unity) DebugStringToFile
0x00007ff6af14e8ca (Unity) TransformCurlErrorToWebError
0x00007ff6af14bf18 (Unity) CurlExecutor::CurlExecute
0x00007ff6ae8098f4 (Unity) ujob_execute_job
0x00007ff6ae809007 (Unity) lane_guts
0x00007ff6ae80aeb4 (Unity) worker_thread_routine
0x00007ff6aea22ff7 (Unity) Thread::RunThreadWrapper
0x00007ff9eb7d7614 (KERNEL32) BaseThreadInitThunk
0x00007ff9ebc026b1 (ntdll) RtlUserThreadStart

idk whats happening it just works fine if I pasted the link in my browser

[flint sage]

Sounds like an issue with your server, it's executing fine but the server is not responding

[worldly shale]

But if I pasted the link that unity generates for the Get function it does respond with the expected response

That's why I'm confused

[flint sage]

Your browser and Unity are not teh same

Your server is doing something

Check the logs

[dusty wigeon]

Debug.Log call do not get strip in release. String concat is still happening.

That being said, the actual printing and logging may be disable. I do not really know, I'm using a wrapper around Debug.Log.

And also, you might be able to enable it with Logger.logEnabled

[fair locust]

So wait… are logs stripped or is it not?

[dusty wigeon]

The function call is definitly not stripped. The Debug.Log(...) will still be evaluated meaning that everything you have written inside will be executed. However, they might be disabled (Not printing) depending on what is your configuration. By default, in a WindowsPlayer, they are printing if I referrer to older test I have done.

Usually, you have a file call Player.log inside appdata path.

[fair locust]

There’s no such file there…

I’m still dealing with QEMU related stuff to get the dev build working.

Glad this stuff is simple

I’d hate to just see logs and be done with this silliness. Sign me up for a couple days of deep debugging and thinking to solve something as lame as “I want to see logs when I run my backend server”

[dusty wigeon]

Hve you tried with a Standalone Windows Player ? Because it was working for me a couple of week ago.

In an empty project.

[fair locust]

I’m steamed about it. Seems simple, it isn’t. I just need to slow down and solve it or move on.

[west nexus]

Hello guys, basically my unity physics gets messed up when I my computer charges

float vertical = Input.GetAxis("Vertical");
        float horizontal = Input.GetAxis("Horizontal");

        body.velocity = new Vector3(0f, body.velocity.y, 0f) +speed * (-Camera.forward * horizontal + Camera.right * vertical);

        ```

This code snippet makes the player fly

when chargin

and moves normally when not

I'm shocked

[sly grove]

show the rest of your code.

It's not this

[west nexus]

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

public class PlayerMovement : MonoBehaviour
{
    [SerializeField] private float speed;
    [SerializeField] private Rigidbody body;
    [SerializeField] private float jumpDistance;
    [SerializeField] private float jumpDuration;

    public Transform Camera;


    private float jumpForce;


    private bool isGrounded;


    private void Start()
    {
        
        isGrounded = true;

        jumpForce = (Physics.gravity.y * jumpDuration);
        jumpForce *= jumpForce * body.mass;
        jumpForce /= 2 * jumpDistance;
    }

    private void FixedUpdate()
    {
        float vertical = Input.GetAxis("Vertical");
        float horizontal = Input.GetAxis("Horizontal");

        body.velocity = Vector3.Dot(body.velocity, Camera.up)*Camera.up+ speed*(-Camera.forward * horizontal + Camera.right * vertical);

        
        
        
        if (Input.GetKeyDown(KeyCode.Space) && isGrounded)
            jump();

    }


    private void jump()
    {
        body.AddForce(new Vector3(body.velocity.x, jumpForce, body.velocity.z));
        isGrounded = false;
    }


    private void OnCollisionEnter(Collision collision)
    {
        isGrounded = true;
    }
}

[cunning raven]

Hey ya'll I wanted to know if anyone here could help me figure this out. I'm trying to code a procedural terrain but I'm having trouble figuring out how to handle collisions so that different objects don't overlap when spawning. How do large world games generally do this?

[sly grove]

Generally procedurally generated objects like trees etc use noise functions to determine where to place things, which naturally will tend away from overlapping objects.

There are also proceses like rarefication: https://gitlab.com/denispahunov/mapmagic/-/wikis/ObjectsGenerators/Rarefy

by the way that's a link to the docs for MapMagic which is a great tool for this kind of thing.

[cunning raven]

Sweet! Thank you <3. Noise function could also be an interesting way of doing this. I've tried grid based with my terrain but that also doesn't/won't work due to the size of objects being spawned being irregular, of course. but the use of noise should work, hmm

I'm having the same exact problem discribed on the doc you`ve linked lmao

[cunning raven]

question, maybe you'd know this. Can map magic generate "seeds" to the terrains it creates by default?

[sly grove]

It can generate terrain from a seed, not the other way around

[red atlas]

Not sure where this would go, but a Google search only turned up 3 results and I figured this is a bit of an advanced topic. So I'm working a VR application and I was measuring the performance metrics to try and optimize everything. Unity's Profiler keeps throwing up the following:

What's with the StackTraceUtility.ExtractStringFromExceptionInternal()[Invoke]? From the looks of it, it has something to do with the errors and warnings that are logged on the console, which I disabled by right clicking on the console > Stack Trace Logging > Errors/Warnings > None.

It is particularly allocating a ton of garbage.

It has something to do with Physics.TriggerStays, but I'm trying to understanding what the StackTraceUtility thing exactly is, if it isn't what I mentioned above?

[dusty wigeon]

I would expect that you are experiencing an exception that require to gather the stack trace.

[red atlas]

That looks like it, from its name. What would ideally be my next step?

[dusty wigeon]

Solve the exception ?

[red atlas]

Yes preferably, or in general in regards to thinking about what next.

[flint geyser]

How do you usually implement projectiles? I want there to be projectiles which can damage only player, only (all) enemies, and only some kinds of enemies and the last requirement quite forbids using enums.
So far only silly decisions come to mind.

[half swan]

Collider on projectile. Three layers for projectile types. Set up the collision matrix properly.

Or tag based checking with the oncolliderenter.

There's probably better ideas, that's just what came to mind first

You could use enums that the projectile passes to the enemies, and the enemy will "accept" or "deny" damage from some types, inverting the responsibility

[tall ferry]

what kind of projectiles? this likely isnt an advanced topic. you can just raycast and fake the projectile visuals. The raycast logic will take care of what objects can be hit while the visuals just follow along for the ride.

[flint geyser]

Like really visible, slow projectiles. And the enemy can move from the target position while the projectile is on its way.

[tall ferry]

You can possibly just use a trigger then on the projectile. The OnTriggerEnter function would take care of if the projectile should stop or not. No need to deal with the collision matrix, as this would use up a lot of layers anyways and be fragile anyways

oh wait maybe i misunderstood

I assumed you are trying to have projectiles pass through objects it cant damage. Is this true or are you just trying to have it not damage certain objects on hit?

[flint geyser]

I didn't specify previously, but I want it to be both ways. First is for behaviour like ghosts, second is for behaviour like an enemy with a shield

So far it looks to me like there's going to be some kind of inversion of responsibility anyway.

[rare tulip]

how can i use unity's profiler (what should i be looking at) to determine which areas of my game requires optimizations if at all?

[flint geyser]

(not really an advanced topic) you launch it while the game is playing (the shortcut is Ctrl + 7), look at how much time each frame takes. Usually, you want it not to go higher than 16.6ms because 60fps is the standard. If you want to see how much time each separate function takes, click on the timeline and you will see everything needed in the bottom, although I prefer to change the view mode to Hierarchy.

[rare tulip]

gotcha, ok i'm assuming we ignore the resources taken up by EditorLoop?

thanks

[tawdry temple]

hey guys, so im newbie in photon and i have a problem that when i play w/ two players the players swap the controls idk what is the problem can anyone fix that?

using System.Collections.Generic;
using UnityEngine;
using Photon.Pun;

public class FirstPersonMovement : MonoBehaviour
{
    public float speed = 5;

    [Header("Running")]
    public bool canRun = true;
    public bool IsRunning { get; private set; }
    public float runSpeed = 9;
    public KeyCode runningKey = KeyCode.LeftShift;

    Rigidbody rigidbody;

    PhotonView view;
    /// <summary> Functions to override movement speed. Will use the last added override. </summary>
    public List<System.Func<float>> speedOverrides = new List<System.Func<float>>();


  
    void Awake()
    {
        // Get the rigidbody on this.
        rigidbody = GetComponent<Rigidbody>();
        view = GetComponent<PhotonView>();
    }

    void Update()
    {
        if(view.IsMine)
        {
            
            // Update IsRunning from input.
         IsRunning = canRun && Input.GetKey(runningKey);

         // Get targetMovingSpeed.
         float targetMovingSpeed = IsRunning ? runSpeed : speed;
            if (speedOverrides.Count > 0)
            {
             targetMovingSpeed = speedOverrides[speedOverrides.Count - 1]();
             }

         // Get targetVelocity from input.
            Vector2 targetVelocity =new Vector2( Input.GetAxis("Horizontal") * targetMovingSpeed, Input.GetAxis("Vertical") * targetMovingSpeed);

         // Apply movement.
         rigidbody.velocity = transform.rotation * new Vector3(targetVelocity.x, rigidbody.velocity.y, targetVelocity.y);
        }
    }
}

[regal olive]

does anyone know a way to rebake the navmesh system while the game is running? is that impossible?

[sly grove]

https://docs.unity3d.com/Packages/com.unity.ai.navigation@2.0/api/Unity.AI.Navigation.NavMeshSurface.html

[dusty wigeon]

https://blog.unity.com/engine-platform/profiling-in-unity-2021-lts-what-when-and-how

[glossy finch]

I am using a 4K monitor and I have a DPI scaling in Windows set to 150%, unfortunately now with the tool I'm using I noticed that Event.mousePosition is scaled back by 100/150. is there a way that I can get this mousePosition scaled to DPI in a managed way or is there a way for me to get the DPI for my current screen (value can differ per screen)?

[novel plinth]

to get the current dpi https://docs.unity3d.com/ScriptReference/Screen-dpi.html

[glossy finch]

exactly what I need, thanks, life saver! 🙂

[austere jewel]

https://docs.unity3d.com/ScriptReference/EditorGUIUtility-pixelsPerPoint.html also works for editor applications

[glossy finch]

ah excellent, this returns 1.5, good stuff 😄

[regal olive]

which part am i looking for on that page?

the navmesh surface?

[sleek terrace]

How can I properly create a uv for 3d mesh so that it maps to 2d texture?

[sleek terrace]

the flat part(2d) part of the mesh is rendered fine, but the slopes/hills are elongated

[regal olive]

looks like piles of shit lmfao

[sleek terrace]

LMAO

[regal olive]

have u tried stitching it together to enlarge it then applying your texture

[sleek terrace]

wdym?

[regal olive]

like one workaround i did was when i wanted a rocky texture, lets say its 30x30 pixels

i turned it into 9 panels so it became 90x90 pixels

looked much better, if thats what ure going for

[sleek terrace]

ahh

essentially make the slopes their own mesh and apply the texture directly

[regal olive]

i havent slept btw so take everything i say with a grain of salt

[dusty wigeon]

You need to keep the same distance between UVs.

[regal olive]

or u can do that workaround i said so it doesnt become elongated since it has more to slopes to work with if u know what i mean

[sleek terrace]

I got my current code off chatgpt, I have no idea how to make uv, please go ez on me

[dusty wigeon]

Start by learning what UVs are...

[sleek terrace]

lmao

uv are coordinates on a picture

they are used to figure out which pixels to color

[dusty wigeon]

So, you know exactly what I have just said

[sleek terrace]

yes

[sleek terrace]

im dealing with 3d here tho

[dusty wigeon]

Yeah

UV are 3D concept as well

[sleek terrace]

if it was 2d, I could simply divide by the max sizes

[dusty wigeon]

In 3D, you can do the same also

Do it at the surface level

Subdivide your surface

There is also tiling, however I'm not really familiar with that

[regal olive]

go to fiverr and pay 5 cents to a ugandan refugee to do it for u

[dusty wigeon]

Maybe you just have to set your UV higher than 1

[sleek terrace]

lack of sleep is one hell of a thing

[regal olive]

3 ideas u can do right here man, fiverr, learn about uv, or increase ur pixels for applying the texture

[sly grove]

Read the methods on it. BuildNavMesh() for example

[sleek terrace]

I cant figure it out

[flint geyser]

When a class needs some functionality as dependency, you can just create an interface and say whoever implements it depends on you (in the sense that it will have no reason to exist other than for our class). But what if 2 classes need to know about each other? Say I want player to know where all the enemies are so that he can aim at them and also I want enemies to know where is player so that they can aim at him. How would you do it?

[sly grove]

One way would be to add a property to your interface to help distinguish one from the other. A simple example:

interface ITargetable {
  public int TeamNumber { get; }
}```

Another way is make sure you're distinguishing them during discovery. For example if you're discovering enemies by physics queries, use a layer mask that excludes your own team.

I prefer to use a separate component for this kind of thing, rather than implementing interfaces, but the concept is the same

[flint geyser]

I thought of creating an interface which provided all the relevant targets. For player it would point to enemies and for enemies point to player, what do you think about such an approach?

[sly grove]

I don't understand what you mean

[flint geyser]

ITargetsProvider, EnemiesTargeter, PlayerTargeter

Something like that

[sly grove]

Well

why does that need to be an interface

[flint geyser]

The other option is an abstract class and it's more restrictive than an interface

[sly grove]

you don't need either

public class TargetProvider : MonoBehaviour {
  public List<ITarget> GetTargets(int team) {
    // return all targets of the specific team
  }
}```
or
```cs
public class TargetProvider : MonoBehaviour {
  public int team; // assign in inspector
  public List<ITarget> GetTargets() {
    // return all targets of the specific team
  }
}```

int is also just an example here

you can use an enum like:

enum Allegiance {
  Player,
  Enemy
}```

[flint geyser]

I think this approach is more limiting because there might be division not based on team allegiance

[sly grove]

this is just an example

without knowing the concrete requirements it's harder to be specific

[dusty wigeon]

In your case, the best is to divide into multiple component. Have the player GameObject owns a Target Component and the Enemy have the same. Player depends on Target, Enemy depends on Target.

Usually, circular reference is sign of bad division of responsibility.

[flint geyser]

Is it in this case? It isn't like the enemy and player directly rely on each other

[dusty wigeon]

Player -> Target <- Enemy
Enemy -> Target <- Player

See, they do not depend from each other

But depend on a common object.

Interface do thet same trick also.

This is the dependency inversion principle in fact.

However, in your case, it might be better to use composition.

To increase the modularity

[flint geyser]

Use composition in what sense?

[dusty wigeon]

https://en.wikipedia.org/wiki/Dependency_inversion_principle

https://en.wikipedia.org/wiki/Composition_over_inheritance#:~:text=Composition over inheritance (or%20composite,from%20a%20base%20or%20parent

In Unity, composition is simple as dividing into multiple MonoBehavior

[flint geyser]

Nowadays I use Zenject so there really is no need to keep everything MonoBehaviours so I try to use plain C# classes, is it bad?

[dusty wigeon]

It limits the amount of serialization you can do as you need to have MonoBehavior for serialization

I guess it would push you to do bad design choice by not defining the serialized data with the real owner of it.

You should not try to prevent the usage of MonoBehavior

It is not like you gonna change engine mid way.

[flint geyser]

Should NOT?

[dusty wigeon]

Yeah, not

[sleek terrace]

How can I go about creating UV coords for a shape like this?

[sly grove]

depends which part of the texture you want to map to which part of the model

that's what UVs are - a mapping of positions on the model to texture coordinates

[sleek terrace]

I just want to map a whole texture onto it

[sly grove]

that isn't really an answer

there are infinite ways to do that

[sleek terrace]

I just need one

🙂

[sly grove]

and you have to explain what that way is

[sleek terrace]

Right now, What I got is meh

the vertical slopes are deformed

private Vector2 GetHexUV(Vector3 vertexPosition)
        {
            // Assuming hexagons are uniformly spaced in a Grid along the Z-axis
            // Calculate the relative position of the vertex within the hexagon
            float relativeX = vertexPosition.x / hexSettings.innerRadius;
            float relativeY = vertexPosition.y / (hexSettings.outerRadius - hexSettings.innerRadius);
            float relativeZ = vertexPosition.z / (0.5f * hexSettings.outerRadius);

            // Calculate UV coordinates based on the relative position
            // Using a custom range for UV coordinates based on the hexagon dimensions
            float uvX = 0.5f + (0.25f * relativeX);
            float uvY = 0.5f + (0.25f * relativeY);
            float uvZ = 0.5f + (0.25f * relativeZ);

            if(vertexPosition.y == Position.y)
            {
                return new Vector2(uvX, uvZ);
            }

            // Return the UV coordinate
            return new Vector2(uvX, uvZ);
        }

[sly grove]

https://www.youtube.com/watch?v=eiDrRa6JvQ0
This is a decent primer

This is for blender

but the concepts are the same

[sleek terrace]

these hex are done dynamically

[sly grove]

doesn't matter

the way UVs work is the same

the point of the video is to explain how UV coordinates map the texture onto the object

from there you can write the code to do it as you please

[sleek terrace]

so, there isnt really a general one piece of code fit all for this?
This has to be done on a case by case basis?

[sly grove]

yep

there is one other option

alternative to UV-mapped textures

you can look into using a Triplanar shader

that's probably pretty appropriate for this case

[sleek terrace]

ok

[sly grove]

youtube.com/watch?v=eZqd68YaY2U

[sleek terrace]

more of a shader graph tutorial

[sly grove]

it shows how to make a triplanar shader

which would suit your usecase

[sleek terrace]

after doing some research triplanar is definetely the way to go, I will look to implement it

[brisk spruce]

Just have a service that keeps track of everyone and you can call stuff like .GetEnemies() and .GetPlayer on it

Also have that service be in charge of all CRUD operations for all the entities, so it always knows where/who everyone is. IE it will be what you use to SpawnEnemy and DeleteEnemy and etc

I try and keep my monobehaviors as simple and minimal as possible, and they all should exist in a "glass box" totally unaware of anything else around them, their only job is to expose their events (collisions and clicks and etc), and expose their mutations (transform, animator state, etc)

My service keeps track of who/where/what everyone is and manages all these objects, doing all CRUD operations on em and keeping em sorted into groups if necessary

[honest hull]

Hey so is there anywhere that can show me how to send a compute shader I have in unity to say a plugin so I can send textures to the shader from the plugin?

[sage radish]

Which graphics API?

[honest hull]

DX12 sorry

been searchihng for a way to do bindless textures for over a year at this point

[sage radish]

You can use GL/CommandBuffer.IssuePluginEvent to hook your native plugin into the render thread just before the dispatch, but I think DX12 is tricky because I don't think you can easily get Unity's ID3D12CommandList to add your own commands into it.

You can get access to Unity's ID3D12CommandQueue and submit your own command lists

[honest hull]

heck

[sage radish]

I'm not very familiar with how DX12 deals with state, but it looks like texture binding is confined to the command lists.

[molten fulcrum]

Trying to make a custom camera for self learning purposes and was wondering if anyone knows how I could make this run faster? (as of right now it runs at about 15 fps while with a regular camera it runs at about 50 fps)

void RenderPixel(Texture2D texture, int x, int y)
{
    float screenX = x / (float)texture.width * sourceCamera.pixelWidth;
    float screenY = y / (float)texture.height * sourceCamera.pixelHeight;

    Ray ray = sourceCamera.ScreenPointToRay(new Vector3(screenX, screenY));
    bool success = Physics.Raycast(ray, out RaycastHit hitInfo);
    if (!success)
    {
        texture.SetPixel(x, y, sourceCamera.backgroundColor);
    }
    else
    {
        float lerp = (Vector3.Dot(sourceCamera.transform.forward, hitInfo.normal) + 1) * .5f;
        texture.SetPixel(x, y, Color.Lerp(color, depthColor, lerp));
    }
}
public void Render()
{
    for (int x = 0; x < renderTexture.width; x++)
        for (int y = 0; y < renderTexture.height; y++)
            RenderPixel(renderTexture, x, y);

    renderTexture.Apply();
}```

it renders about every second, it's meant to render on a tablet type object in-game so it's intentionally rendering slowly, however it slows down the game itself too

and the texture is 198x102

[long ivy]

well not setting the pixels one at a time and running those raycasts in parallel would help, but realistically you'll probably want to find a way to do this on the gpu instead. What are you trying to do? I feel like you should find a way to fake the raycasts (sample depth buffer, or use replacement shader?) and do all this in a pixel shader instead

[molten fulcrum]

Yeah, I should probably use a Color Array and use SetPixels after. As for faking the raycast, that'd be difficult since I'm needing the normal of the surface.

[sly grove]

yes SetPixels will be much faster

[molten fulcrum]

another issue I just noticed that will help performance is that the custom camera still renders even when it's not being shown, so I'll make it where it'll only render if the player will notice

[sly grove]

Also things like float screenX = x / (float)texture.width * sourceCamera.pixelWidth; don't need to be done once per pixel

you can compute that once and reuse it 4 million times

[molten fulcrum]

oh yeah fair point

[flint geyser]

Hi! I have such a class which is supposed to be always on, so I don't really have a reason to make it inherit from MonoBehaviour, however that event subscription in constructor is kinda ugly, don't you think? How would you get rid of it in my place? Or perhaps you wouldn't?

public class PlayerTargetsProvider : ITargetsProvider {
        private MonoGameController _gameController;

        public PlayerTargetsProvider(MonoGameController gameController) {
            _gameController = gameController;

            _gameController.OnNewLevel += SetNewEnemiesManager;
        }

        private EnemiesManager _enemiesManager;

        public List<Transform> GetEnemies() {
            var list = new List<Transform>();
            foreach (var monoEnemyController in _enemiesManager.GetEnemies())
            {
                list.Add(monoEnemyController.transform);
            }
            return list;
        }

        private void SetNewEnemiesManager(Level level) {
            _enemiesManager = level.EnemiesManager;
        }
    }```

[brisk spruce]

you're about 1 step away from proper dependency injection setup 🙂

[flint geyser]

Could you tell me what it is? 🙂

[brisk spruce]

Zenject is a popular DI engine, I have been using it and a few others.

You are technically doing DI already here:

        public PlayerTargetsProvider(MonoGameController gameController) {
            _gameController = gameController;

Specifically thats Constructor DI

[flint geyser]

Yeah, that much I know. I guess spending a week on reading a DI book wasn't in vain

[flint geyser]

However could you expand on the last step you mentioned?

[brisk spruce]

So the big thing is here:

foreach (var monoEnemyController in _enemiesManager.GetEnemies())

It looks to me like rather than changing your ref to _enemiesManager, couldnt your EnemiesManager object just return the correct enemies for a given level, and when level changes the return value for it just changes to reflect that?

Seems to me you wanna just move this logic here:

_gameController.OnNewLevel += SetNewEnemiesManager;

To be inside of EnemiesManager instead, and the output of .GetEnemies() will just be the "right" enemies for a given level

And then you can just DI your EnemiesManager as well, because now you only need 1 single EnemiesManager for your whole game

[flint geyser]

So the step you mentioned is to get your dependency and abstract from how it works, right?

[brisk spruce]

Should, hopefully, just look like this:

public class PlayerTargetsProvider : ITargetsProvider {

        private MonoGameController _gameController;
        private EnemiesManager _enemiesManager;

        public PlayerTargetsProvider(MonoGameController gameController, EnemiesManager enemiesManager) {
            _gameController = gameController;
            _enemiesManager = enemiesManager;
        }

        public List<Transform> GetEnemies() {
            var list = new List<Transform>();
            foreach (var monoEnemyController in _enemiesManager.GetEnemies())
            {
                list.Add(monoEnemyController.transform);
            }
            return list;
        }
    }

[flint geyser]

You forgot to remove the controller I think

[brisk spruce]

oh yeah looks like that isnt even needed anymore, good catch

and then it just sorta looks now like PlayerTargetsProvider isnt doing anything that EnemiesManager isnt already doing for you 🙂

[flint geyser]

However it just moves the problem to another place, because if I don't make the enemiesManager a MonoBehaviour I still don't know how to properly subscribe it to the game manager

[brisk spruce]

how are you injecting dependencies at the moment?

Zenject is fine with registering references to MonoBehaviors for injecting

[flint geyser]

Wdym? [Inject]

[brisk spruce]

where in your code do you call new PlayerTargetsProvider(...)

what you pass into its constructor is the act of injecting

or if you are using Zenject or another DI library, its handling the injection for you automatically

[flint geyser]

I mean that EnemiesManager itself still won't be an MB so it won't have OnEnable and OnDisable or Awake to subscribe to the gameManager

So I am stuck with ugly subscribtion in constructor again

[brisk spruce]

you do naturally end up having 1 single MonoBehavior alllll the way at the top of your injection tree as your "entry point"

So you have an Update() to hook into

[flint geyser]

The installer, right?

[brisk spruce]

but then everything below that entry point can be a POCO

[brisk spruce]

nah thats seperate, that one runs before that process

[flint geyser]

I don't understand

[brisk spruce]

I called mine my "GameEngine" and its job is to just be a simply MonoBehavior that hands off work to my services inside of Update()

The Installer's job is to register all your dependencies

But to keep stuff seperate I think have a very very simply monobehavior that just injects my top level services and calls em in its Update and thats it

[flint geyser]

So how would you subscribe EnemiesManager to GameController in my case with that GameEngine of yours?

[brisk spruce]

In my case I utilize a special middleman class I call my GameState, and it utilizies a pub/sub model with INotifyPropertyChanged event on a buncha properties, all representing the "state" of my game

[flint geyser]

By the way if your engine handles only updates, then you can remove it. Because Zenject adds a special interface for it - ITickable I believe it is called

[brisk spruce]

and then all my services do 1 of two things

A: Mutate the game state (literally by just setting property values on it) (This is the Pub, publish, half)

B: Listening for PropertyChanged event on GameState and reacting to it, the "Sub" (subscribe) half

and I have a couple very very handy methods I made to make it super easy to pub/sub to it in a type safe way

I believe I pinged you about that here 🙂
#1134198357758320670 message

[flint geyser]

Yeah you did about that

[brisk spruce]

I have a blog post I made that shows an example of all this at play and how to implement it, you can check it out if you like:
https://blog.technically.fun/post/unity/building-a-gamestate-with-zenject-in-unity/

I didnt know about the ITickable thing though, thats super handy!

my guide doesnt utilize that but that definitely shaves off 1 step of the process nicely

[flint geyser]

Oo, that's fresh

[vast shale]

I've got a tool that auto generates some prefabs, but existing scene instances get a broken mesh ref. If I re double-click the scene, the references reattach automatically. Only having this issue on current Unity version (2022.3.4)

For now just wondering if there's an editor command I can run that's the closest thing possible to double clicking the scene?

basically, force a scene reload in editor scope (scene manage seems like runtime only).

Anyone know the magic command for this one?

nevermind!

of course chatGPT had the answer. always forget about that one

[cinder raft]

what was the answer?

[vast shale]

UnityEngine.SceneManagement calls were runtime only, didn't occur to me that UnityEditor.SceneManagement package exists.

Couple different API calls too, but pretty much what I was hoping - just a hard reset on opening the scene
EditorSceneManager.OpenScene(currentScene.path);

weird and annoying that it's necessary, but 🤷‍♂️
keeps me moving fowards at least

[tawdry temple]

hello guys, so i am making fps game and i wanna make the skin and animations invisable to me and appears to the other guys in the game so what can i type in search to have a tutorial im using photon pun 2

[sly grove]

Cross posting is against the rules here

It's considered spamming

[tawdry temple]

sorry idk where to put it

[sleek terrace]

How can I merge textures together?

The triangular holes between the hexes, I want them to have a merged texture of all the connectings hexes?

[tropic stag]

I have a parent object that is transformed in worldspace, and a child object with an offset collider (so the collider on the child has a non-zero center, and size). Now I want to, given an orientation/position of the parent object, test if that collider would hit anything with Physics.BoxOverlap().
But box overlap expects a position/size (in world space) + a quaternion orientation of that box. And I have the orientation of the parent. So I think I can get the world space center to pass to box overlap as : parent.transform.position + child.collider.center * parent.transform.rotation; ( or just using child.transform.transformPoint(collider.center), but how do I get the orientation of the collider if it's offset?
(I think I can insert another parent between, child and original parent and have that offset, so the collider is centered on the child and I can just get it's transform.rotation? but now I'm curious what the straightforward way to do it is?)

[vale nova]

Any idea why this throws an exception?
Invalid memory pointer was detected in ThreadsafeLinearAllocator::Deallocate!
Unity.Netcode.FastBufferReader:Dispose ()

          
Guid instanceId = Guid.NewGuid();
if (serializer.IsWriter)
{
    using var writer = serializer.GetFastBufferWriter();
    writer.TryBeginWrite(16);
    writer.WriteBytes(instanceId.ToByteArray());
}
else
{
    using var reader = serializer.GetFastBufferReader();
    reader.TryBeginRead(16);
    var bytes = new byte[16];
    reader.ReadBytes(ref bytes, 16);
    instanceId = new Guid(bytes);
}

I'm not very familiar in native code... thanks!

[viral vine]

Would anyone be able to help me out?

I have a linux VPS with a game server loaded up via Dedicated Server/Linux build and then a game client loaded up via Windows on my local PC

The players spawn, but they don't register the other clients movements

Testing to confirm I'm not moving the same object by moving the plane lower***

Yeah no-- player 1 falls -- gets moved to the left

Second window opened, player 2 falls on top of player 1, moves to the right. First window shows player 2 idle on top of player 1's previous position

[plush narwhal]

Im using:
MeshData meshData = Task.Run(() => {MethodThatReturnsMeshData()});
But it throws an error reading:
Cannot implicitly convert System.Threading.Tasks.Task to MeshData

How do I have Task.Run(etc) to return MeshData instead of a task, or will I have to create a dedicated method for it? (I don't want to create a dedicated method as it doesn't fit my needs)

[sage radish]

To get a value from a task like this, you have to use await in an async method. And then MethodThatReturnsMeshData would have to return Task<MeshData> instead.

[obsidian coyote]

is there any way to attach a generic monobehaviour to a game object, and specify its type there rather than having to create a class like this each time?

[sage radish]

No

[obsidian coyote]

Ah rip 😦

[brisk spruce]

Why do you feel the need to have to do this at all?

[round wharf]

anyone know why this
public unsafe static void Register() => ClassInjector.RegisterTypeInIl2Cpp<MonoEnumeratorWrapper>(new()
{
LogSuccess = true,
Interfaces = new Type[] { typeof(Il2CppSystem.Collections.IEnumerator) }
});

gives me the error
[Error] System.NullReferenceException: Object reference not set to an instance of an object.
at Il2CppInterop.Internal.Logger.Instance.LogTrace(String Message)
at Il2CppInterop.Runtime.Injection.InjectorHelpers.FindGenericMethodGetMethod()
at Il2CppInterop.Runtime.Injection.InjectorHelpers.Setup()
at Il2CppInterop.Runtime.Injection.ClassInjector.RegisterTypeInIl2Cpp(Type type, RegisterTypeOptions options)
at Il2CppInterop.Runtime.Injection.ClassInjector.RegisterTypeInIl2Cpp[T](RegisterTypeOptions options)

[sage radish]

No one here is going to know about IL2CPP modding

[obsidian coyote]

just so i dont need to define the implementation each time, would be cool if generic scripts could just turn into w/e by specifying the type in the editor

[round wharf]

i dident know where else to ask

[brisk spruce]

Can you not have a Type field?

[sage radish]

Isn't there a Discord server for whatever library you're using?

[obsidian coyote]

this is what the actual base class setup looks like, not sure i understand what you mean

[brisk spruce]

Id have to see the goal @obsidian coyote for what your actual code is needing this stuff for, to do whatever its doing.

[obsidian coyote]

basically i have prefabs like HealthBar, and Info, etc that link to some aspect of the tank and tie to its lifecycle in some way, but they need to be attached to varying parents, like as children of different canvas's, or in the base scene, etc

atm they are setup like this, but this will likely expand in the future

[brisk spruce]

Ah, I see

I think your implementation is upside down, and thats your issue

[obsidian coyote]

upside down in what way?

[brisk spruce]

You are trying to have "children" mutate/do stuff to the "parent" they are owned

Thats usually a code smell

[obsidian coyote]

nah, they dont mutate the parent at all

[brisk spruce]

You're tightly coupling the children to "who" they are owned by

[obsidian coyote]

they just need to be in the parent context for things like ui rendering, since a ui element must be a child of the canvas

if anything im decoupling the various things from the base "owner"