archived-dots

[rotund token]

this separation already solves many issues with oop singletons

[devout prairie]

good point yeah

[hot basin]

most new ppl don't like them by association

[rotund token]

some have suggested using the name singleton in entities was probably a mistake

[pliant pike]

that's good they are just really simple and easy for storing and accessing little bits of data

[rotund token]

due to the connotations of the word

(i think it's fine)

[devout prairie]

i used to use kindof fake singletons in oop a lot using a static to only ever get the one existing instance

[misty wedge]

IMO singletons aren't inherently bad, even in OOP, but they are often used incorrectly

[rotund token]

^ definitely

often used in situations in future where it might be nice to have multiple copies

split screen, testing multiplayer, etc

and suddenly you run into issues where you really wish you didn't have this restriction

[misty wedge]

Yep, especially annoying in testing if you can't properly "replace" the instance with something else

[pliant pike]

the great thing about dots is it its easy to copy and change data around

[hot basin]

are singletons shared by default?

[rotund token]

sorry i mean

each world will have it's own version of the singleton

i guess it came out wrong

[devout prairie]

used to use this approach:
then i'd basically access the instance of the class with like MC_ItemHandler._instance.SomeField

[misty wedge]

@rotund token I was looking at your spatial map recently, did I understand correctly that e.g. a quantize step of 4 would divide a 16x16 map into 16 "blocks" of 4x4 each?

[rotund token]

from memory yes

i'm probably going to add support for 3d soon~

[misty wedge]

I only need 2 dimensions!

[rotund token]

and allow different quantization in each dimension

(just a request from a friend)

[misty wedge]

I was a little confused on how to read the values off of the NativeKeyedMap, do I do Map[Hash(Quantized(position))]?

[rotund token]

did you see example i posted on forum

[misty wedge]

Nope

[rotund token]

https://forum.unity.com/threads/core.1340078/#post-8709810

someone asked for one so i threw something together a few days ago

[misty wedge]

Alright, looks like I had the right idea 👍

Also

[rotund token]

So here's the problem,
I get a couple of hours to do some project work and I have 2 options
a) write documentation and samples for a saving library
b) write an awesome large simulation

i choose b) every time ^_^'

[misty wedge]

Understandable 😅

[rotund token]

maybe I will send you a copy without documentation

you can be my test dummy

[pliant pike]

no one reads docs anyway 🤷

[misty wedge]

I'd love to

[tribal pollen]

So I seem to be able to load/reload my subscene from code which is good, but I'm getting an issue with some stuff after reloads.
It looks like I'm missing something that I need to initialize with the Inputsystem

ObjectDisposedException: Cannot access a disposed object.
Object name: 'The NativeArray has been disposed, it is not allowed to access it'.

[late mural]

is it ok if a system's name doesn't match the file name?

[hot basin]

it should be ok

[void girder]

I'm getting weird behavior when calling GetAllUniqueSharedComponents() where it outputs two of the same shared component

[late mural]

thanks!

[void girder]

What's worse is that getting the entity count from an entity with a shared component filter outputs 0

[hot basin]

seems easy to if it out

[void girder]

How so?

[hot basin]

are you making foreach for those?

just check if there are entities with this filter

[void girder]

I checked the Entities hierarchy and there are

And should GetAllUniqueSharedComponents() ever output duplicate entries?

[hot basin]

can't find anything about it in documentation so probably it shouldn't

[void girder]

Yeah agree

[rotund token]

That's expected

Get all unique shared components returns all components the em knows about

Even if it's not attached to any entity

As well as the default shared component in index 0

[hot basin]

then it will get all even from prefabs?

[rotund token]

If those prefabs have been loaded into entity world I believe it should

I'm not sure why you're getting a second default copy back though

[hot basin]

you should get award or like life-achievement for providing this community with better information than documentation

[tribal pollen]

So checking EntityManager.Exists on an entity that has been disposed throws an error instead of returning false... >_>

and trying to catch ObjectDisposedException doesn't work x.x

[rotund token]

you sound like you're using old your entity manager

in the disposed world

[tribal pollen]

its in a mono

[rotund token]

yeah did you cache it or something

how are you getting it

[tribal pollen]

yeah I saved a reference

I guess i should just move this out of here.

[rotund token]

so when you dispose your world that reference is now invalid

[tribal pollen]

which is fine, it's just annoying that it won't let me make a new one

it's basically a singleton entity, so it was just making itself

[hot basin]

how is singleton entity making itself?

[tribal pollen]

it's a mono on a game object making a single entity to represent something

[hot basin]

so why you can't recreate it in new world?

[tribal pollen]

I only destroyed the entity world so the monos stuck around and just lost their references

and i was trying to recreate it in the mono if it didn't exist.

[hot basin]

ah and it throws an error on check

[tribal pollen]

yeah

I'll move the entity creation elsewhere. just an annoying issue x.x

[hot basin]

what about event on world destruction/creation?

[tribal pollen]

hmmm true I'm already throwing one too

[hot basin]

yeah it's strange that it throws instead of returning false

[rotund token]

why is that strange

the entity manager is disposed

[hot basin]

isn't entity just an ID and version?

[rotund token]

entity manager

nothing to do with the entity

[tribal pollen]

but we have a new manager, and i'm checking an entity that it wouldn't have.

[rotund token]

oh you have a new manager?

whats it throwing then

entity came from a different world or something

[tribal pollen]

yeah

[hot basin]

that's why it's strange 😄

[rotund token]

yeah because entity index > than the max index this entitymanager has ever created

so it thinks you made a mistake by using wrong one

(which you did)

[tribal pollen]

pshh

i gave it a property entity object, and it didn't have it.

but it didn't give me my boolean

[hot basin]

hmm seems reasonable

[rotund token]

this is reason #17 i strongly recommend against accessing entity world from MB

[tribal pollen]

I'm not trying to, but at some point you have to

[hot basin]

so systems with managed components?

[rotund token]

i don't believe that's true

i believe you can write all your data from systems to monobehaviours

[tribal pollen]

and how do you convert a user click

[hot basin]

in a system

[rotund token]

my input is read in a system to components

[hot basin]

mine also

[tribal pollen]

welp i'm noob. I just used a Input Manager

[hot basin]

and you should be able to in the system

[tribal pollen]

tried the new InputSystem. didn't know I could do it in a system

[hot basin]

make singleton entity from all your fields

[hot basin]

managed component / GameObject.Find

[rotund token]

anyway this comes from experience.
a project at work does this a lot and it has caused endless problems

[tribal pollen]

This seems like great advice, but i'm so tired it's not clicking. 😦

[hot basin]

strange given that not so long ago hybrid was preferred

[rotund token]

not saying dont use hybrid

i'm saying in a hybrid approach, make your data only flow 1 way

the life cycle management of entities vs monobehaviour is really incompatible

(feel free to disregard any general sweeping advice I have. I think it's important to test, experiment and learn from mistakes yourself to build knowledge)

(i will still tell answer your questions and help even if I personally think it's a poor way to do something)

[tribal pollen]

ofc, but I truely appreciate your help. So feel free to give any advice 🙂

[cunning perch]

what would be the recommended way to reading a UI button click from a system?

[rotund token]

i generally recommend using UI toolkit these days and I think it works well with systems as you don't need gameobjects etc and can just set it up in the system

however if you prefer ugui or need to use it, i'd probably just write a presentation layer on a monobehaviour and get a reference to that from a system

[hot basin]

don't know what is recommended way but I made normal ui events change bool flags in managed component which then are read in a system

[cunning perch]

i guess another excuse to give UI Toolkit another try. Last time I tried it, it only seemed nice as an editor window

[hot basin]

how do you handle events and entity creation?

and do you load ui document from resources or managed components?

[rotund token]

i bake them

so managed components

(though there seems to be a bit of a bug in the recent entities when building related to this and the resource not being included)

[tribal pollen]

I've been making my own events and having my UIBuilder buttons fire them and execute them in systems.

[hot basin]

and what about those pesky entity creating events?

[rotund token]

i don't recall any UI of mine that create entities directly

[tribal pollen]

despite doing this, for the normal non-ui element clicks i was using the InputSystem with entitymanager, which now was the issue

[rotund token]

however I'd probably just store it in a queue in the system and play it back on update

(if not just create it on the spot)

[hot basin]

so local ECB?

hmm

[rotund token]

probably just EM directly

[hot basin]

wouldn't this make a sync point?

[rotund token]

sure but how fast is a user clicking UI

and i suspect the events come either start or end of frame anyway

[hot basin]

can ECB be a field in a component?

nvm in managed component probably everything is ok

[tribal pollen]

persistant in managed

[rustic rain]

Im heavily working on mvvm implementation for ui toolkit within ecs, while trying to follow best web design practices

It might be ready as prototype in next couple of days

I already implemented text binding with localization support

and what is really good, I make it built on mvvmtoolkit package

From communitytoolkits

Which is what microsoft recommends to use these days as default

In gui apps

[rotund token]

i'm interested to see the flow when you're done and what it adds over uitoolkit bindings (and upcoming bindings)
i do like the idea of this though

[rustic rain]

Hmm. Is NativeList safe when used in parallel?

[rotund token]

reading? yes
writing? it has a parallel variation

[rustic rain]

oh

what about if there is no need to increase capacity?

[rotund token]

the parallel writer doesn't support increasing capacity

[rustic rain]

doubt there's going to be too much UI requests per frame

[rotund token]

you can't increase capacity in parallel

[rustic rain]

ah, got it

[rotund token]

hmm

you can't pass in the enabled bit as well as the value in ijobentity?
private void Execute(EnabledRefRW<FindPath> findPathEnabled, in FindPath findPath)

that's a bit annoying

guess i'm converting this to an IJobChunk

[rustic rain]

🥲

very small webgl project

[void girder]

Yeah the second copy is really weird. Worse part is when I call CalculateEntityCount() on an entity query with the default scd filter it returns zero despite me knowing there are entities that exist

The solution for now is to never assign the default scd to any entities so they would be discoverable with an EntityQuery

[muted star]

Hey everyone, my debugging experience in Rider is kind of messed up.
In one part of the UI variables are shown to not exist in the current context and in other parts they are shown to be fine.
Does anyone else have this problem? It makes using conditional breakpoints impossible.

[rustic rain]

use bottom debug panel

it shows all context variables

[muted star]

yea but conditional breakpoints are broken :/

[rustic rain]

a lot of debugging is broken because this is not the code that actually runs 😅

[muted star]

ah yes, true 😅

[pliant pike]

Is it possible to run an foreach only on disabled entities?

[rustic rain]

WithAll<Disabled>?

[misty wedge]

iirc you'll also need to set the query option to include disabled entities

EntityQueryOptions.IncludeDisabledEntities

[pliant pike]

yeah I was looking at that part

[pliant pike]

that doesn't seem to work foreach (var (isAlivevar, enty) in SystemAPI.Query<RefRO<IsAliveDat>>().WithOptions(EntityQueryOptions.IncludeDisabledEntities).WithAll<Disabled>().WithAll<ShelfIsleStaticTag>().WithEntityAccess()) {

that's the query

[misty wedge]

Are you sure you have something that actually matches that?

[pliant pike]

yeah it works without the withoptions and withall it just work on all the entities

[misty wedge]

Well I would assume it wouldn't include the disabled entities

[pliant pike]

and there is a disabled component in the heirarchy

yeah I'm just trying to do the opposite

[misty wedge]

Yes, I was just mentioning it since you said it included "all entities", it should be skipping the disabled ones for the inverse

[devout prairie]

'ShelfIsleStaticTag' - supermarket simulator? 😛

[pliant pike]

not quite I'm in the mood to just destroy stuff at the mo

[misty wedge]

If I want to use a burst function pointer that modifies a dynamic buffer I'll need to pass it as a void* instead of the actual type, correct?

Also, I would assume that's also how I could pass the entire DynamicBuffer and not just the pointer to its internal memory for easier modification, as long as the stack variable is still valid at the point the burst function is called?

[pliant pike]

WithOptions(EntityQueryOptions.IgnoreComponentEnabledState) it seems like I can't get that part to work

[misty wedge]

wdym? I thought you wanted to get disabled entities

[pliant pike]

I do, but it seems no matter what option I choose the disabled entities are not included

foreach (var (isAlivevar, enty) in SystemAPI.Query<RefRO<IsAliveDat>>().WithOptions(EntityQueryOptions.IncludeDisabledEntities).WithAll<ShelfIsleStaticTag>().WithEntityAccess())
        {         
            if(state.EntityManager.IsComponentEnabled<IsAliveDat>(enty))            
            {
                Debug.Log("iscomponent is enabled");
                return;
            }

            Debug.Log("the entity was nearly destroyed");
            state.EntityManager.DestroyEntity(enty);


        }```

[misty wedge]

Have you tried with just WithOptions(EntityQueryOptions.IncludeDisabledEntities)?

And see if that matches anything

[pliant pike]

yeah tried it without the withall and still nothing

I mean it gets all the entities just not the one disabled

[misty wedge]

[WorldSystemFilter(WorldSystemFilterFlags.LocalSimulation)]
public partial struct TestSystem : ISystem
{
    public void OnCreate(ref  SystemState state) { }
    public void OnDestroy(ref SystemState state) { }
    public struct MyData : IComponentData
    {
        public float Value;
    }
    public void OnUpdate(ref SystemState state)
    {
        var disabledEntity = state.EntityManager.CreateEntity(typeof(Disabled), typeof(MyData));
        foreach (var (data, entity) in SystemAPI.Query<RefRO<MyData>>().WithOptions(EntityQueryOptions.IncludeDisabledEntities).WithEntityAccess())
            Debug.Log(data.ValueRO.Value);
        state.EntityManager.DestroyEntity(disabledEntity);
    }
}

this works for me

removing the option stops matching the entity

[pliant pike]

how does that work, your component doesn't inherit from IEnableable

[misty wedge]

Why should it?

[pliant pike]

because that's how you get and use enableable components?

[misty wedge]

Who ever said anything about enablable components? This was about querying for disabled components

[pliant pike]

public struct IsAliveDat : IComponentData, IEnableableComponent{ } like that

[misty wedge]

^

[pliant pike]

what other disabled entities are there though

[misty wedge]

What

I think you are mixing concepts

[pliant pike]

that's what I was talking about enableable components which are components you can enable or disable

[misty wedge]

That's not the same as the Disabled component

Disabled is a special component that unity uses on all queries to ignore a subset of entities, unless you specify it in the option

There is only one Disabled component

(called Disabled)

You can have any number of IEnableableComponents, but they have nothing to do with Disabled

[pliant pike]

oh I did not know that

[misty wedge]

It's akin to GameObject.SetActive from the mono world, and the respective FindObjectOfType / GetComponent functions there

[pliant pike]

too many confusing terms, sorry

[misty wedge]

In this case specifically the fact that those functions ignore disabled components / objects

[misty wedge]

It's all good 👍

If you want to query on only your disabled IsAliveDat I don't think that's currently possible

You'll have to query on all and check, not 100% sure though

[cunning perch]

I'm new to this, so Disabled is added to entities to "disable" everything attached and the IEnableableComponent is a part of a component for "disabling" just that component?

[misty wedge]

Again, Disabled and IEnableableComponent have nothing to do with each other

[pliant pike]

yeah that's fine I guess, I hope they do make it so you can query enableable components that are disabled because that would be handy

[misty wedge]

They are entirely separate concepts

[cunning perch]

Ok, i'll check docs

[misty wedge]

Disabled is akin to GameObject.SetActive, while IEnableableComponents are similar to Component.enabled

I guess the easiest way to explain it would be that Disabled removes the entity from all queries, while disabling a single component only removes that entity from all queries that query on that component

[cunning perch]

hmm, looking at docs and your explanation, my analogy seems spot on

[misty wedge]

Yes, you are correct in your analogy. I only reiterated due to the previous conversation. You don't need Disabled or anything to disable a component

[pliant pike]

thanks for that, I'm suprised I haven't come across disabled components in all my time using DOTS

[cunning perch]

you just need it if you want to prevent the entity to be included in queries (by default)

[misty wedge]

Disabled has been there since version 0.0 😅

Oh, or are you talking about IEnableableComponent?

[pliant pike]

no yeah disabled components, I think I was there close to the beginning, never saw them or a reason to use them 😆

[misty wedge]

Yes I guess it depends on what you are doing. I'm not using them for anything either atm

[misty wedge]

I would also take a look at how IEnableablComponent functions internally, since there are some gotchas if you are using IJobChunk

If you are only using SystemAPI.Query and IJobEntity it all pretty much works automatically

[pliant pike]

I'll probably be fine I avoid IJobChunk anyway to be honest that's to technical for me

[misty wedge]

It's not that complicated to understand 😅

But with the new IJobEntityChunkBeginEnd interface there is now a lot less need to use them

[pliant pike]

it is for me 😆

sidenote is it possible to do a foreach with structural changes

[hushed lichen]

idiomatic or Entities.ForEach?

[pliant pike]

the Isystem one

[misty wedge]

It's not possible with SystemAPI if that's what you are asking

[pliant pike]

I guess I'll have to use a commandbuffer then thanks

[misty wedge]

Why does DynamicBuffer.AddRange not accept a NativeArray.ReadOnly

[pliant pike]

Thinking about it I could just do the inverse, change the name to isDead and start it off disabled, then enable it ontrigger 🤔

[misty wedge]

Is there a reason you are even using IEnableableComponents in this example?

Why not just use a normal tag component

[pliant pike]

Well because they are supposed to be better, faster plus I want to learn how they work

[misty wedge]

They aren't necessarily faster, they can also be slower

It depends on how often you plan to change the value

(and what you are doing sounds like a low frequency state change)

[rustic rain]

the only thing they good for - very quick state switching

[pliant pike]

I hadn't heard of them being slower, but I think they good for my case I don't want them to persist for any frames

[rustic rain]

so you don't have to do tons of structural changes all the time

[misty wedge]

They slow down iteration time for jobs that use them

[rustic rain]

otherwise, you are processing dead weight

[pliant pike]

Interesting, no other jobs use the comp so I guess I should be fine

[misty wedge]

That one job will still run slower compared to using a tag component

It's not going to break your performance or anything but it is important to understand the uses for it imo

[pliant pike]

I mean slow in jobs is kind of relative, it's all mostly super fast

[rustic rain]

here's the thing. Let's say you have 5k dead entities and 10k alive entities. Generally death does not happen too often.
So everytime each your job will have to process all those 5k dead entities.

If instead you use dead tag, they won't even be part of query and you can distinguish jobs for dead and alive

with enabled comp you gain perfomance if death happens a lot, like constantly.

with tag you benefit in long term, if death/ressurection does not happen often

it also really affect project architecture

in case dead require specific logic - it's going to be problematic, as query will be same as for alive

[rotund token]

#archived-dots message

I roughly profiled this yesterday actually

There's minimal overhead in the 0% and 100% cases which is nice for short events

Can process the chunks pretty fast

Was pretty happy with results

[pliant pike]

Well one plus is I avoid a structural change

[rustic rain]

but 0% and 100% are not very realistic, aren't they?

[rotund token]

Depends on use case, I wasn't really going into this to benchmark those cases I just wanted a baseline

[rustic rain]

Do you guys think binding through VisualElement's name (since, non text elements don't have text attribute) is ok?

🤔

[viral sonnet]

i dislike that kind of binding but it's very common for CSS to query either by id/name or css class. so, not much options really

[rustic rain]

True

Well, binding path property is really limited and not even available on all elements

So until unity rolls a better one, I guess that'll do

[viral sonnet]

when i tried VEs I had hopes that it would be different. unity style. i was shocked it is not

best to make a setup that handles changing names. nothing sucks more than a sudden unbound VE because the name changed

[rustic rain]

Binding only happens once

I don't think rebinding is required anyway

Mostly you bind static stuff

Dynamic is handled by hand

[rotund token]

i really need Unity to expose journaling event writing

even if only to mark it as internal, i don't want to duplicate all this code

a lot of my tricky change filter stuff doesn't write proper journaling events

like accessing RO but writing

and i think this will bite me at some point if I don't manually write the correct event

(The actual EntitiesJournaling.Add record is internal however I don't want to duplicate all this code for specific events and risk it breaking/changing on updates)

    public void Execute(in ArchetypeChunk chunk, int unfilteredChunkIndex, bool useEnabledMask, in v128 chunkEnabledMask)
    {
        var entities = chunk.GetNativeArray(this.EntityHandle);

        // The destroy system opens with RO even though it writes to avoid bumping change filters as we only want to react to external updates
        var entityDestroys = (EntityDestroy*)chunk.GetComponentDataPtrRO(ref this.EntityDestroyHandle);

#if (UNITY_EDITOR || DEVELOPMENT_BUILD) && !DISABLE_ENTITIES_JOURNALING
        var anyWrite = false;
#endif

        for (var i = 0; i < chunk.Count; i++)
        {
            if (entityDestroys[i].Value == 0)
            {
                continue;
            }

            if (entityDestroys[i].Value < 0)
            {
                entityDestroys[i] = EntityDestroy.Reset;
#if (UNITY_EDITOR || DEVELOPMENT_BUILD) && !DISABLE_ENTITIES_JOURNALING
                anyWrite = true;
#endif
                continue;
            }

            this.CommandBuffer.DestroyEntity(unfilteredChunkIndex, entities[i]);
        }

#if (UNITY_EDITOR || DEVELOPMENT_BUILD) && !DISABLE_ENTITIES_JOURNALING
        if (anyWrite)
        {
            chunk.JournalAddRecordGetComponentDataRW(ref this.EntityDestroyHandle, entityDestroys, sizeof(EntityDestroy) * chunk.Count);
        }
#endif
    }```
pretty gross though

[rotund token]

i'd also love to be able to extend the events to add my own

but having a look at source it just flat out throws an exception if it isn't an existing enum field

[viral sonnet]

does getting component ptrs from chunk write to journaling?

[rotund token]

GetComponentDataPtrRW does

[void girder]

Is anyone getting these type of errors?
A BatchDrawCommand was submitted with an invalid Batch, Mesh, or Material ID. BatchDrawCommand index: 6 (index in range: 6), BatchDrawRange index: 0 This is not supported when rendering with a BatchRendererGroup (or Entities Graphics). MaterialID (0x5) MeshID (0xD) BatchID (0x1)

[rotund token]

sounds like you might be passing a null mesh/material or something invalid

but no, i haven't see this personally

[void girder]

Hmm how about this one?

UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)```

Maybe fixed in 2022.2.3: https://forum.unity.com/threads/leaked-batchrenderergroup-error-requires-restart-to-go-away.1375359/#post-8716449

[rotund token]

Yeah that looks like the common bug

[pliant pike]

I really don't understand LinkedEntityGroup sometimes conversion adds it automatically and most of the time it doesn't

[rotund token]

it adds it to any prefab by default

[pliant pike]

hmm maybe that's it, its not a proper prefab

nope doesn't seem to be adding it to my prefab, it adds a child buffer but not the linkedentitygroup

[rotund token]

basically any call of GetEntity(entity) that is a prefab adds it

also all ghosts have it added in netcode

[void girder]

People's MaterialPropertyAttribute aren't working atm right?
https://forum.unity.com/threads/materialpropertyattribute-hybrid-instancing-stopped-working-in-2022-2-2f1.1386009/

[rotund token]

i haven't tried but that's what i've heard from this channel

[pliant pike]

thanks for that tertle, I'm trying to nail down exactly what

[rotund token]

break point in it ^_^ (with open subscene)

[pliant pike]

it seems like if its already in the scene that's a common factor

[rotund token]

https://gitlab.com/tertle/com.bovinelabs.core/-/blob/master/BovineLabs.Core.Authoring/RemoveLinkedEntityGroupSystem.cs

alternatively just run post processing to remove all LEG that aren't required

[pliant pike]

you can put a breakpoint to check a subscene somehow, I found out you can't put it in a baker

[rotund token]

it should breakpoint fine IF you are doing it with an open subscene

put breakpoint, open subscene

it won't work if you are doing it with closed subscenes because they are executing in a separate process (you'd have to attach to that specific process instead)

[pliant pike]

yeah I got it working just had to save it first

[thorn trout]

how to do polymorphism with dots?

for example, a character can cast many abilities on a complex rpg. How to represent all this abilities?

Is using function pointers good?

or a enum + switch?

[mystic mountain]

Represent them with different entities.

[thorn trout]

one system per ability type?

how does it scales then

what if i have 300 abilities like diablo 2

[devout prairie]

i have a gameobject with image component inside one of my prefabs..

and during baking it takes a reference to that gameobject in a managed component

but when i actually spawn the prefab entity this gameobject reference points to the original prefab child gameobject..

any ideas what's going on there

[mystic mountain]

Behavior is driven by components and systems. Similar behavior will use similar components.

[rotund token]

that doesn't sound very data driven

if you want a game with that many abilities you really need to drive them from data

you should be able to create entirely new abilities without any code once the implementation has been setup

if your designers need to come in and ask a developer every time they want to experiment with an ability, every ones time is being wasted and iteration will be extremely slow

[mystic mountain]

What did you expect it to point at? I think you're leaving out some information here.

[devout prairie]

yeah i'm trying to figure out how this works as i've barely used managed components or gameobjects at all with ecs so far..

so basically, i decided to make my healthbars as a child of the unit prefab..

previously, my entire unit hierarchy converted to entities, but now i've added in this healthbar which has an Image component

so what i expected to happen was:

when i spawn the ecs version of the prefab, it would maybe spawn a gameobject version of the healthbar with the managed component

but i guess no, maybe it's actually converting the healthbar to an entity, with a managed Image component on it?

[mystic mountain]

Afaik you need to manage the spawning and despawning manually of the gameObject reference.

You can see in the NetCode samples they are doing this for healthbars. Alas they are not using the Clonable and Diposable interfaces they mention in the documentation, but said will fix in future.

[devout prairie]

yeah i've looked at how they've done that, they have a separate isystem which spawns healthbars at runtime

i was hoping to avoid that extra step but i guess it might be simpler

so basically - the healthbar with Image component doesn't appear to be getting converted to an entity with a managed component, is that the expected behaviour?

[mystic mountain]

You can just create two systems and use it for all companion gameObjects creation and destruction : )

[mystic mountain]

You're just referencing an gameObject here? What did you expect to happen?

[devout prairie]

yeah i realize that expecting it to spawn a GO is silly, but i guess i expected it to convert the healthbar to an entity with a managed Image component on it, or something 😛

[mystic mountain]

Well ok. So if they are children of the converted object, they would be attempted to be converted as well, but I'm guessing you're using non authored components here. So you wouldn't notice.

[devout prairie]

so because the healthbar has an Image component, it's basically ignored by baking is that right?

i assume so as i get nothing here:

[mystic mountain]

Afaik Image doesn't have any baking for it, so you wouldn't get anything out of it.

[devout prairie]

right yeah

it's the first time i've attempted to do this, everything else has been 100% conversion to entities so far

[mystic mountain]

I've only used it for my camera so far, so I'm not too experienced 😅

[devout prairie]

healthbars previously were managed by a monobehaviour, which grabbed a native hashmap containing all the positions etc

[glossy gorge]

This is the ECS related channel right?

[devout prairie]

it is

[glossy gorge]

I'm having issues with the Spawner example in the ECS documentation. https://docs.unity3d.com/Packages/com.unity.entities@1.0/manual/ecs-workflow-create-systems.html

The prefab won't show up in scene.

I have URP set up and all the settings seem to be fine but the prefab won't show up on scene only game.

Made a forum post if anyone can help. https://forum.unity.com/threads/cant-see-anything-in-scene-view-following-documentation-tutorial-1-0-0-pre-15.1386552/

[devout prairie]

if you just create an empty scene, with an empty SubScene in it, put a simple Cube in the subscene, and then run it, does the cube show up?

[glossy gorge]

Yes

[rotund token]

have you installed the entities.graphics package

and are you using urp or hdrp

[glossy gorge]

Yep

Everything is also up to date at 1.0.0-pre.15

[rotund token]

hmm if you have those 2 things (entities.graphics and a srp installed) it should just work

[glossy gorge]

Tis why I am so confused

Is there perhaps something I have to do with the prefab?

[devout prairie]

These are my packages in unity 2022.2.1f1 in case it's any help:

[rotund token]

😱

still on burst 1.7 is interesting

do people not care or not know about break pointing in burst in 1.8?

[glossy gorge]

This is my current list

[devout prairie]

silence infidel

i'm on vs

[rotund token]

your kind is not welcome around here 🙃

[rotund token]

i would suggest removing netcode and just getting a basic implementation working first

[glossy gorge]

I've sparked a civil war

[glossy gorge]

I'll try that.

[rotund token]

i do believe a basic netcode setup should still work fine for you loading an entity in a subscene
but it will be setting up 2 worlds for you

[devout prairie]

it's a fresh project yeah, ie you don't have any legacy stuff in your manifest or anything

[glossy gorge]

It did not work. :c

Yep

[rotund token]

could you show us your project settings/graphics page

[glossy gorge]

Standard URP 3D

[rotund token]

as well as the prefab you're trying to convert

[devout prairie]

i might be misremembering but i think i had an issue with still having hybrid in my manifest or something when porting a project to 1.0

obviously not your issue though

[rotund token]

so yeah that definitely looks fine

what's the subscene + prefab (cube)

OH 1 sec are you looking at scene or game view?

[glossy gorge]

Game view the prefabs show up fine

Scene view it does not

[rotund token]

yeah

go to preferences, entities

change scene view from authoring to runtime

or something like that

[glossy gorge]

Baking -> Scene View Mode -> Runtime Data?

[rotund token]

yeah

[glossy gorge]

It work!

[rotund token]

(unity really has to change this default, this has to be at least the 5th time I've seen this issue popup in a month)

[thorn trout]

Ty, but i dont have artists. Im the developer and the artistits lol

Do you suggest having abilities as many pieces?

[glossy gorge]

Thanks for the help!

Another issue I'm having is a parented prefab freaking out when it's instantiated

It basically falls apart and the cube portion disappears

[rotund token]

are your children physic objects

[glossy gorge]

Just 3D primitives

[rotund token]

they don't have a collider?

[glossy gorge]

They do

[rotund token]

that would make them a physics object ^_^'

[glossy gorge]

I see.

Why would that make the instantiation freak out?

I'll remove the colliders and see what happens first.

Removed the colliders and it works fine O-Ob

[rotund token]

dynamic bodies must be root

https://docs.unity3d.com/Packages/com.unity.physics@1.0/manual/concepts-body.html

Dynamic bodies (i.e., those with PhysicsVelocity) require LocalTransform component. Their values are presumed to be in world space. As such, dynamic bodies are unparented during entity baking.

Static bodies (i.e., those with PhysicsCollider but without PhysicsVelocity) require at least one of either LocalTransform, and/or LocalToWorld. For static bodies without a Parent, physics can read their LocalTransform values directly, as they are presumed to be in world space. World space transformations are decomposed from LocalToWorld if the body has a Parent, using whatever the current value is (which may be based on the results of the transform systems at the end of the previous frame). For best performance and up-to-date results, it is recommended that static bodies do not have a Parent.

[glossy gorge]

As such, dynamic bodies are unparented during entity baking. I see

[rotund token]

basically unity physics really doesn't want physic objects to have parents

even statics

For best performance and up-to-date results, it is recommended that static bodies do not have a Parent

[devout prairie]

what did you mean about Clonable and Disposable?

[mystic mountain]

https://docs.unity3d.com/Packages/com.unity.entities@1.0/manual/components-managed-create.html

[devout prairie]

Ahh thanks! I really should read the docs start to finish rather than dipping in when i need to

[devout prairie]

That's pretty interesting actually

It seems it would be useful for prefabs with managed components on them

HOWEVER.. how could a prefab with a managed component reference an instance of a gameobject if gameobjects have to be manually spawned after baking

ie say you have a prefab that held a reference to a particle system

if i just added an IClonable managed component to the prefab with a reference to the particle system, would it then automatically spawn that particlesystem gameobject when i spawn the prefab at runtime

[rotund token]

the example above shows exactly how it does this

UnityEngine.Object.Instantiate(ParticleSystem)
inside clone

[devout prairie]

or would i have to spawn the particlesystem gameobject at runtime, and then assign the IColonable back to the prefab in hindsight

[rotund token]

Clone() is called on Instantiation

so Instantiating a copy of the entity prefab will instantiate a new copy of the particlesystem

[devout prairie]

hmm ok so that would appear to solve the healthbar problem then

and i take it their netcode sample wouldn't require a healthbar spawner system if their player prefabs had an IClonable added using an authoring component right

i guess i should test this out 😐

[devout prairie]

so yeah this appears to work

public class Healthbar : IComponentData, IDisposable, ICloneable
{
    public Transform HealthBar;
    public Image HealthSlider;
    public Image StrengthSlider;
    public float3 Offset;
    public void Dispose()
    {
        UnityEngine.Object.Destroy(HealthBar.gameObject);
    }

    public object Clone()
    {
        var newHealthbar = UnityEngine.Object.Instantiate(HealthBar.gameObject);
        return new Healthbar { 
            HealthBar = newHealthbar.transform,
            HealthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>(),
            StrengthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>(),
            Offset = Offset
        };
    }
}
public class HealthbarAuthoring : MonoBehaviour
{
    public GameObject HealthbarPrefab;
    public Vector3 Offset;

    class AuthBaker : Baker<HealthbarAuthoring>
    {
        public override void Bake(HealthbarAuthoring authoring)
        {
            var healthbar = authoring.HealthbarPrefab;
            AddComponentObject(new Healthbar
            {
                HealthBar = healthbar.transform,
                Offset = authoring.Offset
            });
        }
    }
}

so the initial baked version of the component gets a reference to the actual prefab

then when i instantiate the prefab at runtime, it obviously fires Clone() which instantiates the gameobject prefab and assigns that reference to the new Healthbar component

[rotund token]

how nice right

[devout prairie]

yes indeed

assuming if/when the entity is destroyed it'll fire Dispose and cleanup the gameobject without me having to manually referencing the Healthbar component to do that

[rotund token]

@misty wedge think i'll release a free version of my saving library

otherwise it's never getting out at this rate

[devout prairie]

Is this at all possible.. it's complaining that the job has a non-value field type ( WorldSpaceUI is a managed component) :

    public void OnUpdate(ref SystemState state)
    {
        var ecbSysSingleton = SystemAPI.GetSingleton<BeginInitializationEntityCommandBufferSystem.Singleton>();

        var query_worldspaceUI = state.EntityManager.CreateEntityQuery(ComponentType.ReadOnly<WorldSpaceUI>());

        new SpawnHealthbarsJob()
        {
            ecb = ecbSysSingleton.CreateCommandBuffer(state.WorldUnmanaged).AsParallelWriter(),
            worldSpaceUI = query_worldspaceUI.GetSingleton<WorldSpaceUI>()
        }.Run();
    }
    public partial struct SpawnHealthbarsJob : IJobEntity
    {
        public EntityCommandBuffer.ParallelWriter ecb;
        public WorldSpaceUI worldSpaceUI;

        public void Execute([EntityIndexInQuery] int entityIndexInQuery, Entity e, HealthbarSpawner spawner, Healthbar healthbar)
        {
            var newHealthbar = UnityEngine.Object.Instantiate(spawner.HealthbarPrefab, worldSpaceUI.WorldSpaceUIGameobject.transform);
            healthbar.HealthBar = newHealthbar.transform;
            healthbar.HealthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>();
            healthbar.StrengthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>();
            ecb.RemoveComponent<HealthbarSpawner>(entityIndexInQuery, e);
        }
    }

[rotund token]

use SystemAPI.Query imo

alternatively RunByRef /might/ work i haven't tried

[devout prairie]

i did try Query but it was complaining about putting a managed type in the query 😐

the amount of fucking around for the simplest shit is just unreal here

[rotund token]

jobs don't support managed data (regardless of burst)

[devout prairie]

yeah i mean that figures i guess

i don't think Query does either as it compiles to a job right

[rotund token]

            foreach (var (component, entity) in SystemAPI.Query<CMTransposer>()
                         .WithAll<CinemachineTransposer>().WithChangeFilter<CMTransposer>().WithEntityAccess())
            {
                var transposer = this.EntityManager.GetComponentObject<CinemachineTransposer>(entity);

                transposer.m_BindingMode = component.BindingMode;
                transposer.m_FollowOffset = component.FollowOffset;
                transposer.m_XDamping = math.clamp(component.XDamping, 0, 20);
                transposer.m_YDamping = math.clamp(component.YDamping, 0, 20);
                transposer.m_ZDamping = math.clamp(component.ZDamping, 0, 20);
                transposer.m_AngularDampingMode = component.AngularDampingMode;
                transposer.m_PitchDamping = math.clamp(component.PitchDamping, 0, 20);
                transposer.m_YawDamping = math.clamp(component.YawDamping, 0, 20);
                transposer.m_RollDamping = math.clamp(component.RollDamping, 0, 20);
                transposer.m_AngularDamping = math.clamp(component.AngularDamping, 0, 20);
            }```

[devout prairie]

( well is codegenned to a job )

[rotund token]

yeah i just do this it seems

GetComponentObject

[devout prairie]

okay lemme try this, thanks

Okay thank you sir, that approach is working:

public void OnUpdate(ref SystemState state)
    {
        var ecbSysSingleton = SystemAPI.GetSingleton<BeginInitializationEntityCommandBufferSystem.Singleton>();
        var ecb = ecbSysSingleton.CreateCommandBuffer(state.WorldUnmanaged);

        var query_worldspaceUI = state.EntityManager.CreateEntityQuery(ComponentType.ReadOnly<WorldSpaceUI>());
        var worldSpaceUI = query_worldspaceUI.GetSingleton<WorldSpaceUI>().WorldSpaceUIGameobject.transform;

        foreach (var (spawner, healthbar, entity) in SystemAPI.Query<HealthbarSpawner, Healthbar>().WithEntityAccess())
        {
            var newHealthbar = UnityEngine.Object.Instantiate(spawner.HealthbarPrefab, worldSpaceUI);
            healthbar.HealthBar = newHealthbar.transform;
            healthbar.HealthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>();
            healthbar.StrengthSlider = newHealthbar.transform.GetChild(0).GetChild(0).GetComponent<Image>();
            ecb.RemoveComponent<HealthbarSpawner>(entity);
        }
    }

is it not possible to run something like that in parallel then, because it's using managed components?

[rotund token]

you can pretty much use nothing in UnityEngine off the main thread

[devout prairie]

the reason it had complained about putting managed type in query before i think is because i'd tried like SystemAPI.Query<RefRO<MyManagedComponent>>

whereas just doing SystemAPI.Query<MyManagedComponent> seems to work fine

which, tbf, makes sense

first time using these idiomatic foreach's tbh

have basically been trying to avoid anything other than ISystem with jobs as much as possible

as much as i enjoyed using Entities.ForEach previously

[thorn trout]

why use the class version of components?

Is it not slower?

[rotund token]

you use it when you need to store managed data

[thorn trout]

Can you mix it? have a managed and non managed component for same entity?

think is cool. I didn`t knew ECS can access managed data

[rotund token]

Yes

you can attach anything to an entity btw

You can just go
AddComponentObject(entity, new MyClass())

[thorn trout]

Do you cache references to other components like we do in monobehaviour with GetComponent?

[rotund token]

ideally you should be trying to stick in the unmanaged world as much as possible

and avoid all managed data as it's going to slow you down a lot

but currently that is not always possible so it's nice to have these options

[thorn trout]

Yeah, makes sense

[drowsy pagoda]

Code is tested and working in play mode. However, when building it get this error: Use of possibly unassigned field 'OffsetMatrix'
It's referring to this line: var offsetMatrix = math.mul(math.inverse(partAttachmentData.PartElement.OffsetMatrix), targetAttachedElement.CurrentOffset);

I assure you that the field OffsetMatrix in the PartElement struct is assigned prior to it being read here, that's a guarantee. But why does building throw this? Is there a way to turn off this check for unassigned fields because it's giving me other false positives as well.

Woah, and what does purple color of user name here mean?

[rotund token]

generalist tag

would need to see more code to see what's going on

[drowsy pagoda]

Oh, I figured it out, it was because I had methods that had out SomeStruct someStruct.

[thorn trout]

Does anyone has an example RPG with ECS?

minimal example

[thorn trout]

public partial struct SerializeJob : IJobEntity, IJobEntityChunkBeginEnd
{
    [ReadOnly] public CollisionWorld world;
    [ReadOnly] public ComponentLookup<NetworkedEntity> networkedEntities;
    [ReadOnly] public double timeAsDouble;

    [NativeDisableContainerSafetyRestriction]
    private NativeList<DistanceHit> distanceHits;

    public unsafe void Execute(in WorldTransform transform, in NetworkedPeer peer, in Entity entity)
    {
        distanceHits.Clear();

        Debug.Log(timeAsDouble);

        if (world.OverlapSphere(transform.Position, 20.0f, ref distanceHits, CollisionFilter.Default, QueryInteraction.Default))
        {
            for(int it = 0; it < distanceHits.Length; ++it)
            {
                ref DistanceHit hit = ref distanceHits.ElementAt(it);

                if(networkedEntities.TryGetComponent(hit.Entity, out NetworkedEntity otherEntity))
                {
                 /* Add to buffer */   
                }
            }
        }
    }

    public bool OnChunkBegin(in ArchetypeChunk chunk, int unfilteredChunkIndex, bool useEnabledMask, in v128 chunkEnabledMask)
    {
        distanceHits = new NativeList<DistanceHit>(Allocator.TempJob);

        return true;
    }

    public void OnChunkEnd(in ArchetypeChunk chunk, int unfilteredChunkIndex, bool useEnabledMask, in v128 chunkEnabledMask, bool chunkWasExecuted)
    {
        distanceHits.Dispose();
    }
}```

is this code good for a network serialization system?

It will only serialize entities at 20 meters distance from myself

[rotund token]

distanceHits = new NativeList<DistanceHit>(Allocator.TempJob);

should be Temp

surprised it's not erroring?

[thorn trout]

there is no error

[rotund token]

[NativeDisableContainerSafetyRestriction]
maybe because you turned off errors

you can't use TempJob memory inside a job

just use Temp

it's faster anyway

[thorn trout]

Ok, thank you

Is not TempJob a temp for jobs?

[rotund token]

it's for passing data into jobs

you can't pass temp data into jobs

temp data uses a bump allocator per thread

and must stay within that thread

[thorn trout]

I see

TempJob can survive multiple jobs

But do you think this code is good for a game with like 500 players?

bandwidth is not a problem. My previous game had only 4mbps with 1200 players

[rotund token]

you could slice it if it comes to it

updating relevancy every frame is not exactly needed

the only flaw with this is that every ghost needs to be a physics object

[thorn trout]

Is it bad? they will be anyway

i don`t sync static objects

[rotund token]

what if you create ghost skill effects

etc

anyway it's more of a problem to deal with when you get there

[thorn trout]

Do you think it can handle like 500 players?

My old engine was handling 1200 to 3000 per server but it was .net core

[rotund token]

Provably but I have not tested at that scale

[thorn trout]

the bottleneck was serialization actually not checking what is near

How many players do your game handle?

[rotund token]

Game at work doesn't use netcode

Was built before netcode was released

[thorn trout]

i`m using ENet

https://github.com/nxrighthere/ENet-CSharp

not using unity networking/serialization too

[rustic rain]

bruuuuh, VE's name does not support symbols in name either

🤔

I guess I can use tooltip for binding

[rotund token]

what if you want to use the tooltip

and how do you intend to localize/bind that separate to the value field

[rustic rain]

yeah

I decided

to only do binding on text elements

it's temporary solution anyway

so... it'll do

works kind of like this:
#LocaleKey:arg1:arg2:arg3

attaches automatically to public Property

[rotund token]

so the thing i'm curious about is how you determine what localization table to use for your bindings

[rustic rain]

it's in authoring of View

[rotund token]

so each menu has it's own table?

[rustic rain]

yeah

[rotund token]

so what if i have a character screen with stats

and then a skill screen with stats

both will probablyy want to read from the stats localization table for some bindings driven from data

but the labels etc might want to read from a general UI table

[rustic rain]

you can use same tables

on different views

I considered

having field

for shared table

but not sure yet

[rotund token]

yes but i want to use different tables on same view

[rustic rain]

if it's required

[rotund token]

this is basically the problem i have atm

[rustic rain]

nah, only 1 view for now
maybe that'll change

but rn

[rotund token]

from project at work, having everything in 1 table is unworkable

[rustic rain]

I work on click binding

[rotund token]

apart from it's super hard to maintain

it completely breaks localization with lag

we ended up doing most of our localization outside the editor in gridly

and just importing it into separate tables in localization package

i don't have a solution for this but what I'd like to be able to do is set the localization table per element

Table:Key
kind of deal

[rustic rain]

well, the first thing comes to mind

[rotund token]

(again this is not how my implementation works at all, but this is what I will strive for eventually)

[rustic rain]

just have an array of tables

[rotund token]

(was just hoping you had a magical fix)

[rustic rain]

and during resolution of binding

just query them until entry is found

first table with entry will be used

that's about it

[rotund token]

how do you handle language changes at runtime

[rustic rain]

same as you

tableChanged += callback

all right, let's go

click binding is done

all binding keys are separated by ;

spaces are ignored

[rotund token]

i really wish i could use LocalizedString

[rustic rain]

@ is symbol for click binding

[rotund token]

instead of redoing the whole thing like i'm doing atm

[rotund token]

looking nice

[rustic rain]

I will do value binding

that's my next step

basically

if I don't want to use localization for some reason

or I want to pass pure text

or I already manage localization internally

binding will be done on string property

[rotund token]

so what are your buttons binding to?

[rustic rain]

I use MVVM Toolkit

this is how it looks

[rotund token]

yep i know

[rustic rain]

one sec

[rotund token]

but what's the end point

how do i attach my logic to it

[rustic rain]

    public partial class MainMenuViewModel : ViewModel, IRecipient<OpenMainMenuMessage>
    {
        private NativeReference<Budget> _budget;
        private NativeReference<Buildings> _buildings;
        private NativeReference<MinionCount> _minions;

        public override void OnInit()
        {
            Messenger.Register<OpenMainMenuMessage>(this);
            _budget = EntityManager.GetSingletonStructReference<Budget>();
            _buildings = EntityManager.GetSingletonStructReference<Buildings>();
            _minions = EntityManager.GetSingletonStructReference<MinionCount>();
        }

        public void Receive(OpenMainMenuMessage message)
        {
            Enable();
        }

        [RelayCommand]
        private void StartNewGame()
        {
            
            Messenger.Send<CloseScreensMessage>();
            Messenger.Send<EnableGameScreensMessage>();
            Messenger.Send<UpdateUIMessage>();
            EntityManager.AddComponentData(EntityManager.CreateEntity(), new GameInstanceRequest
            {
                state = GameState.Routine
            });
        }
    }

in fact

I can make it even shorter

so instead of doing my own url system I switched over to Message system of mvvm toolkit

it is really powerful

[rotund token]

so these are not asynchronous calls then i take it?

[rustic rain]

and well optimized already

[rustic rain]

what?

Send?

it supports async

it support reply

it supports multiple async reply

kek

[rotund token]

i mean from the fact that StartNewGame is using EM stuff

[rustic rain]

I wrote a wrapper for UniTask

[rustic rain]

oh, it is to initialize internal game logic

[rotund token]

can this setup support multiple worlds with separate UI?

you probably aren't interested in this

just curious about the flexibility

[rustic rain]

hm

it works like this

once world created

init system will query for all authoring views in scene

I should probably change it to being System based, not object based

so for each view found it initializes ViewModel SystemBase

creates all bindings and all

View itself

can be immutable

so as many worlds can be created

and it doesn't even require UIDocument to work

it can be removed/added

and UI will be restored

I don't use subscenes btw for this

I see no point in it

and they don't work with webgl

which is my target rn

[rotund token]

really webgl?

entities is an interesting choice then

[rustic rain]

I use it for architecture

[rotund token]

does it actually build for webgl atm?

[rustic rain]

yeah

I regularly build

sadly in 2022.2 they broke compiler and building is extremely long

almost an hour

and if I use older compiler - UI toolkit events don't work

🥲

[rotund token]

hmm my work builds are nearly an hour but its long before 2022

still on 2020

pretty sure it was like burst 1.8

[rustic rain]

well, my project is almost empty

literally just UI + a tiny bit of art

[rotund token]

it used to take 10min

now 40

[rustic rain]

used to be 5 mins tops

but that's a known bug

which is known by unity

yay, time get rid of all this crap

            RootVisualElement.Q<Button>("Cancel").clicked += OpenGameMenu;
            _submitButton.clicked += OnSubmit;

[rotund token]

does that include graphics?

is this something new the added in pre

swear it didn't use to work

[rustic rain]

no

[rotund token]

also good man!

not enough people do this (self included)

[rustic rain]

entities are only used for modeling

[rustic rain]

yeah, I even learnt to write tests 😅

[rotund token]

🥳

basic tests are great

[rustic rain]

here's what MVVM Toolkit messaging is capable of

        [UnityTest]
        public IEnumerator UniTaskCollectionRequestMessageOkTest([ValueSource(nameof(MessengerTypes))] Type type) =>
            UniTask.ToCoroutine(async () =>
            {
                var messenger = (IMessenger)Activator.CreateInstance(type)!;
                object recipient1 = new();
                object recipient2 = new();
                object recipient3 = new();
                object recipient4 = new();
                async UniTask<int> GetNumberAsync()
                {
                    await UniTask.Delay(100);

                    return 4;
                }
                void Receive1(object recipient, AsyncNumbersCollectionRequestMessage m) => m.Reply(1);
                void Receive2(object recipient, AsyncNumbersCollectionRequestMessage m) =>
                    m.Reply(UniTask.FromResult(2));
                void Receive3(object recipient, AsyncNumbersCollectionRequestMessage m) => m.Reply(GetNumberAsync());
                void Receive4(object recipient, AsyncNumbersCollectionRequestMessage m) =>
                    m.Reply(_ => GetNumberAsync());

                messenger.Register<AsyncNumbersCollectionRequestMessage>(recipient1, Receive1);
                messenger.Register<AsyncNumbersCollectionRequestMessage>(recipient2, Receive2);
                messenger.Register<AsyncNumbersCollectionRequestMessage>(recipient3, Receive3);
                messenger.Register<AsyncNumbersCollectionRequestMessage>(recipient4, Receive4);

                List<int> responses = new();

                await foreach (var response in messenger.Send<AsyncNumbersCollectionRequestMessage>())
                {
                    responses.Add(response);
                }

                CollectionAssert.AreEquivalent(responses, new[] { 1, 2, 4, 4 });
            });

[rotund token]

took me a while to realize this was a test

[rustic rain]

I just need a proper wrapper for bursted code

[rotund token]

i haven't used UniTask in years

[rustic rain]

that's the only async supported in webgl 😅

[rotund token]

do regular tasks not work?

did not know

[rustic rain]

no Threading

in which they exist

[rotund token]

oh yeah that makes sense

(i don't think i've ever played a webgl game let alone developed for it so I'm way out of my depth here)

[rotund token]

@misty wedge https://github.com/tertle/com.bovinelabs.saving.free
here you go. I've released a full featured free version of my saving library with only migration stripped out.

I'll get a version on UPM tomorrow and asset store at some point~

I added some of the documentation I have written for it. Covers most of the basics but there's a lot of extra features missing.

Comes with some demos (imported via package manager), though these should not be followed for best practices.

[rustic rain]

        [RelayCommand(CanExecute = nameof(CanDemolish))]
        private void OnDemolish()
        {
            SelectType = SelectionType.Destroy;
        }

        [ObservableProperty] [NotifyCanExecuteChangedFor(nameof(DemolishCommand))]
        private bool _canDemolish;

ngl, can't say I like it too much 😅

a bit annoying I can't store enabled state into command directly

all right

now NotifyValueChanged binding...

[rustic rain]

I guess those are the only value types I need to support + string

[rotund token]

Most of these share a generic base type

Which can be convenient

[rustic rain]

nah

I have to rely on reflection to get Properties

or set them

so

hardcoding generics is the only way I can use delegates

[muted star]

i fixed this earlier by starting

Is there an equivalent to UnityEngine.SceneManagement.SceneManager for baking?
I would like to get access to the current scene name inside a baker.

public override void Bake(SubsceneWorldValidationDataMono authoring)
        {
            var activeSceneName = SceneManager.GetActiveScene().name;
            EWorld world;
            if (activeSceneName.ToLower().Contains("physicssimulation"))
            {
                world = EWorld.PhysicsSimulation;
            } else if (activeSceneName.ToLower().Contains("simulation"))
            {
                world = EWorld.Simulation;
            }
            else
            {
                world = EWorld.Default;
            }
            
            AddComponent(
                new WorldValidationDC
                {
                    World = world,
                    SubSceneName = new(activeSceneName, Allocator.Persistent)
                }
            );
        }

[rustic rain]

Worlds exist without scene, so... potentially it won't be possible

[muted star]

Oh well, I'll have to find a different solution then 👍

[misty wedge]

Awesome! Will definitely check this out soon 🙂

[forest urchin]

what are dots used for?

[hybrid jay]

https://unity.com/dots

[forest urchin]

i looked at that and it didnt tell me mch

[hybrid jay]

I'd say Dot's is used to build highly performant games utilising multithreading and other enhancements easier than has ever been possible with gameobjects

It's a completely different way to code since it is not OOP (Object orientated programing (monobehaviours/gameobjects)) but is instead data orientated

So theres a clear divide between data (Entities just hold data through components) and logic (Systems which go through the data and perform logic)

The way it is designed allows for easy dependency management (is built in for us) so that multithreading is easy

[devout prairie]

Anybody else regularly have this little gem:

Sits on that last library for ages

[hybrid jay]

I do wish that would show which library it is working on

I'm not sure if it actually has but i swear the burst compiler has gotten slower

I usually just keep it off if thats possible for you if you don't mind having worse performance in the editor play mode

[devout prairie]

basically DOTS is a programming/development ecosystem within Unity that moves away from using slower 'managed' memory access and object orientated programming towards data-oriented design using fast native memory access.

[forest urchin]

that sounds too hard for me

[hybrid jay]

if you are relatively new to Unity and C# then you'll be fine using gameobjects and monobehaviours

But it really does depend on the scale of your game

[devout prairie]

to be honest i've had this waiting on that final library ( i'm assuming it's my code/assembly ) since 0.51

[hybrid jay]

The way to make it faster is to work out your script dependencies and make use of more asmdefs to split your code up

but that can be really hard to do which is unfortunate

easier if you are networking a game as there is a general separation you can do for scripts (Server, Client, Shared)

[devout prairie]

yeah i could look at doing that tbh, just curious if it's common with others to have that final lib take a while

[hybrid jay]

it is for me

[edgy fulcrum]

me too, as of now I just do my thing and ignore it - and sometimes when I enter play mode it takes more than usual, and I realize its because that last lib is still compiling

I suspect its the final player assembly - I agree that more visibility into what Burst is compiling would be awesome

[forest urchin]

my fps is dying

[hybrid jay]

this isnt really for this channel, just use the profiler to find out whats causing it

[forest urchin]

physics

[hybrid jay]

well post the profile in #⚛️┃physics and ask there for help to optimise it

[covert lagoon]

The terms data-oriented design, object-oriented programming and object-oriented design should be properly defined

DOTS still has interacting objects with both fields and methods so it's still object-oriented really

[hybrid jay]

I think the word oriented gives the hint that it isnt fully one or the other

[pliant pike]

you don't interact with objects though you interact with data components by using systems

[hybrid jay]

I doubt theres a code base anywhere which is purely data or object programming

[long zenith]

hi friends, has anyone encountered an issue where subscene isn't rendered when in game view, but is seen in the camera preview window (the small window in the scene when you click on the camera)?

[devout prairie]

could it be related to this? #archived-dots message

[long zenith]

results in both scene and game views showing nothing

which is better in terms of consistency but not exactly what bothers me as you might imagine 😄

[devout prairie]

Haha yeah, sorry i'm not sure then beyond that 😐

[subtle sand]

Does anyone know if "IAspect" derived structs are allowed in the OnCreate of ISystem's? As soon as I start using aspects, for example:

public void OnCreate(ref SystemState state)
{
    state.RequireForUpdate<PaddleScoreAspect>();
}

I receive ArgumentException: Unknown Type:DotsPong.PaddleScoreAspect All ComponentType must be known at compile time. For generic components, each concrete type must be registered with [RegisterGenericComponentType].
which I can't seem to fix

[rustic rain]

then it's not supported

keep in mind, aspects is just another codegen sugar

also, it's literally just pointer holder

[subtle sand]

Seems kinda unfortunate to create the aspect, use it in the update but then having to write it out again in the OnCreate but I kinda temporarily fixed it by adding an EntityQueryBuilder function to the aspect itself.

[rustic rain]

you can use

RequireMatchingQueriesForUpdate

this will use underlying query instead

also

you can try referencing codegenerated query field

but make sure to check final results

[subtle sand]

didn't know about that one, seems to work fine

thanks!

[pliant pike]

basic question but whats the best way to instantiate and set the positions of a bunch of prefabs in an ISystem?

public void OnUpdate(ref SystemState state)
    {
        PrefabPhysbuffer = SystemAPI.GetBuffer<PrefabPhysicsBodyBuffer>(SystemAPI.GetSingletonEntity<PrefabinatorTag>());
        LookupAlive.Update(ref state);
        ChildBufferLook.Update(ref state);
        LocaltransLookup.Update(ref state);

        var theShelfPhys = PrefabPhysbuffer;

        new ShelfTriggerEventjob { shelfisAlive = LookupAlive }.Schedule();//state.GetComponentLookup<IsAliveDat>()}.Schedule();

        state.CompleteDependency();

        EntityCommandBuffer ecb = new EntityCommandBuffer(Allocator.TempJob);       

        foreach (var (isAlivevar, localtransf, enty) in SystemAPI.Query<RefRO<isDead>, RefRO<LocalTransform>>().WithAll<ShelfIsleStaticTag>().WithEntityAccess())
        {
          
            var currPos = localtransf.ValueRO.Position;
            
            var thechildbufferlookup = ChildBufferLook;
            var childboofer = thechildbufferlookup[enty];
            for(int i = 0; i < childboofer.Length; i++)
            {
                ecb.DestroyEntity(childboofer[i].Value);
            }
            ecb.DestroyEntity(enty);

            for(int j = 0; j < theShelfPhys.Length; j++ )
            {
                var current = ecb.Instantiate(theShelfPhys[j]);

                var thenewpos = LocaltransLookup[current];
                thenewpos.Position = localtransf.ValueRO.Position;
                LocaltransLookup[current] = thenewpos;

            }
        }

        state.CompleteDependency();
        ecb.Playback(state.EntityManager);        
        ecb.Dispose();

    }```

I've got that currently but the only part that doesn't work of course is setting the position because the ecb needs to be played back first

it seems like I should just avoid the foreach altogether, but then the Query is really useful

I feel like I should just go back to SystemBase for instantiating

[hybrid jay]

just do ecb.SetComponent(current, new LocalTransform{ Position = thenewpos })

[hybrid jay]

Use ISystem unless you need to access managed data, like UI, Input. ISystem can do everything else and is burstable

Just incase you didnt know you can also access the command buffer systems too, via their singleton

[pliant pike]

of course I'm an idiot

thanks @hybrid jay

[hybrid jay]

You can also send in the child buffer as a query, you shouldnt need the lookup if i'm reading your code right

and you could make it into an IJobEntity so you avoid the state.CompleteDependency();

new ShelfTriggerEventjob { shelfisAlive = LookupAlive }.Schedule(); use dependencies

[pliant pike]

true, this just the first pass, naive see if anything even works approach

[hybrid jay]

cool cool

[gusty comet]

is there a good up to date tutorial somwhere on the 1.0 conversion workflow? I tried finding a decent tutorial on how its supposed to be done now, but the whole tutorial space for entities is so fractured that I have no clue what is current and what is not anymore.

[pliant pike]

https://docs.unity3d.com/Packages/com.unity.entities@1.0/manual/ecs-workflow-example.html

that's the one I used

[mystic mountain]

Anyone with knowledge of InputEvent and IInputComponentData? I don't really grasp what is going on behind the scenes when looking at their samples.

[rotund token]

i'm no expert but I have a general understanding. do you have a question in particular?

[mystic mountain]

From what I can see the NetCode sample & Rival sample:
Both reset the InputComponentData in their gather systems for non camera rotation, and then read input. Meaning the Set() will always be 0 or 1. I presume there is some hidden accumulation on client side for same ticks here?
They handle rotation of camera differently; Netcode just accumulates += the input rotation, while rival check if there if old prediction tick => set previous accumulated deltas. So either the InputComponentData is reset behind the scenes, or it is not?

[rotund token]

if you just trying to understand what's going, i suggest ignoring rival and just following along with netcode samples and/or the new unity car demo. rival does some extra unusual stuff around this for its interpolation.

the whole input stuff is because the network tick rate (usually 60) won't match the actual client frame rate

if the client frame rate is > network tick rate (for example lets go with 120 fps)

then if you were watching a getkeydown event and you used a bool instead of the InputEvent you'd miss 50% of the 1 frame events

[mystic mountain]

Yeah I know that. I found it now. The netcode sample is using actual rotation, while rival is doing deltas.

Meaning that the component never clears on its own, so they are just storing the rotation in it. While rival is clearing for deltas on new ticks.

[thorn trout]

is using Tag components for events good? if they are rare?

like ChunkChangedComponentTag {}

and add/remove at same frame

or better having a bool on component

bool ChunkChanged

or a hashmap of entities that changed chunk?

[rotund token]

this is an age old question

you may as well add in IEnableable as an option

but when you say ChunkChanged - what are you looking for?

[thorn trout]

chunk is a 2d spatial hash grid

if grid is 32x32 it can add a tag ChunkChanged when the grid the entity is inside changed

like minecraft chunks

i was planning to use physics trigger for it but it does not have trigger enter/exit

So i need to implement trigger enter/exit with spatial hashing

[rotund token]

another alternative is simply store 1 of your world chunks per entity chunk (via shared component)

and then simply use the built in ChangeFilter

to know when a chunk has changed

unfortunately, there's really no best way for this

there has been a lot of discussion around events in entities

i wrote a high performance event system 2-3 years ago that was very popular for a time and has been used in published games

though i personally no longer use it (still works)

[thorn trout]

i have an array of entities that are inside area of interest of each peer.

i need to add and remove from this array based on when entities move between chunks

Do you think it makes sense?

Why i need this array? to do delta compression

[rotund token]

for networking?

[thorn trout]

struct DeltaCompressedEntity {
public uint LastAckTick;
public Entity Entity;
}

yes

[rotund token]

if you're using netcode, it handles delta compression for you

[thorn trout]

i`m not

i don`t think it can handle large scale

Can it?

[rotund token]

🤷‍♂️

i've tested 100,000 ghosts

which is way more than i think they expect to exist

but i haven't tested more than 64 clients

[thorn trout]

yeah, but the scaling is based on client count

5000 clients with 5000 ghosts cost much more than 100k ghost with 64 clients

[rotund token]

it does a good job at network scaling

i'd be more concerned about performance scaling (cpu)

[thorn trout]

Does not it needs to iterate all entities to compute relevancy all time?

this can`t scale

[rotund token]

their focus really seems to be on keeping network usage low

[thorn trout]

yeah

[rotund token]

i can easily handle 100k ghost relevancy on really any number of clients

[thorn trout]

With spatial hashing, right?

[rotund token]

yeah

[thorn trout]

Do you have delta compression/

[rotund token]

not on my side

i leave that to netcode for ghosts

[thorn trout]

from unity?

[rotund token]

but yeah i spent a lot of time optimizing this spatial hash map

not actually for networking

i use it for my orca simulation

[thorn trout]

Can you add spatial hashing on unity networking?

[rotund token]

netcode relevancy system is just populate a hashmap with valid entities per network object

i do this via my spatial hashmap

[thorn trout]

I see

Then i think i can do it with unity netcodew

[rotund token]

there are definitely areas of netcode that would need a revisit for the scale i think you're trying to achieve

and i think they will do it eventually

but i don't think it's their focus atm

[thorn trout]

I want to achieve 1000 players per scene

with like only 30 per area of interest

so each player can see at most 30 players at same time

[rotund token]

realistically, i think you'd probably just need to test and benchmark it yourself

to find out if it'll meet your needs

and if you're willing to risk waiting for development to fix areas you might identify as problematic

[thorn trout]

i`m not sure i want to risk

i have my networking library working

with native udp sockets

it can handle it already

[rotund token]

determining network stack during pre-production probably up there with important decisions

can be a huge pain to change

[thorn trout]

i have created 3 multiplayers game with it

[rotund token]

yeah if you have a working solution, i'm not sure I would be changing

[thorn trout]

and i don`t need/want some features of unity networking (like lag compensation)

and they add a lot of CPU

[rotund token]

yeah a lot

[thorn trout]

For spatial hashing i`m using SzudzikPair to map a 2d position to 1d array index

then it is O(1)

it can handle negative numbers too with no waste of positions

    {
        var xx = x >= 0 ? x * 2 : x * -2 - 1;
        var yy = y >= 0 ? y * 2 : y * -2 - 1;

        return (xx >= yy) ? (xx * xx + xx + yy) : (yy * yy + xx);
    }```

the size of 1d array is prealocatted based on map bounds

[rotund token]

yeah i use a preallocated map bounds as well

an annoying restriction at times but it simplifies so much

i need to benchmark that vs what i'm doing

the mapping part is really not my slow part though

but any performance improvement is good

though this looks a bit conditionally to me (hopefully burst can avoid that)

[thorn trout]

It is good for locality of reference

of chunks

Can you create array of chunks and each chunk/cell has a nativearray of entities?

Or is it not possible?

a NativeArray<NativeArray<Entity>>

[rotund token]

you wont be able to pass that into a job

the inner container will not be able to have safety injected

you can just use an unsafe container though

NativeArray<UnsafeList<Entity>>

ok current hashing vs SzudzikPair - 100k entities

pretty much exactly the same

but for my use case my current implementation is more convenient as I can just step walk between neighbours for(var i = current-2; i < current+2; i++)

[thorn trout]

Do your implementation handle negative position?

[pliant pike]

finally got collisions to work

[thorn trout]

why you don`t use NativeMultiHashMap for this?

[rotund token]

i do use nativemultihashmap

i have a huge range of extensions on it to make it magnitudes faster for this

i memcpy directly to the internal arrays and calculate hashes / buckets at end

instead of adding each element individually

[rotund token]

yeah i offset by half world size

it's pretty basic

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static int2 Quantized(float2 position, float step, int2 halfSize)
        {
            return new int2(math.floor((position + halfSize) / step));
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static int Hash(int2 quantized, int width)
        {
            return quantized.x + (quantized.y * width);
        }```

[devout prairie]

looks fun 🙂

[rotund token]

i'm so annoyed at him for stopping the video short

there was so much more ahead to hit!

[pliant pike]

thanks, it took me long enough, now I can destroy everything 😡

[devout prairie]

are you making them kinematic until collision happens?

[pliant pike]

those ahead aren't actually destroyable yet

I'm swapping the whole objects basically, when they are standing still they are just 3 meshs and then onTriggerevent I swap that to(instantiate) one where they are all separate entities with physicsbody's

[devout prairie]

Ah right yeah

[pliant pike]

not sure if that's the best way but seems good to not have a ton of physicbody's/separate meshs sitting there taking performance doing nothing

[devout prairie]

Yeah I mean I think with mass removed etc its pretty negligible from my experience, but whatever works for your setup.. I'd say swapping out would be lighter if it's an option for you.

[rotund token]

i did something very similar for my wall destruction

it just seems all around more performant, less to render, less to simulate etc

[pliant pike]

cool, it wasn't sure if I was just unnecessarily optimizing

[rotund token]

always depends on your scale

game is a single room vs large open environment

[devout prairie]

My simulation i have walls made of individual bricks, which i basically setup as kinematic but once hit they are enabled

[pliant pike]

yeah I just want to see how far I can push the performance

[devout prairie]

basically if i have all bricks as fully simulated the whole time, they don't act like bricks ( ie cemented together ) the entire thing will collapse if just some of the bricks are knocked out, so i've had to try and work around that

[pliant pike]

yeah I've thought about ways of doing that, it seems like the best way

[glossy gorge]

I have a quick novice question.
Is baking simply just converting back and forth between DOTs and Unity?

[pliant pike]

well it converts the gameobject into entity data

[glossy gorge]

Also is it accurate to think of the subscene used for Entites as just a separate environment? As in it's possible to look at data between them but they shouldn't directly interact?

[pliant pike]

not really I don't think, subscenes can interact just fine, they are just basically groupings of gameobjects to be converted

[glossy gorge]

I see.

Sorry if I sound dumb af. Haven't touched Unity in a while and I've also never used subscenes.

[pliant pike]

no worries its all good, I ask plenty of dumb questions myself

[cunning perch]

In retrospect, if that's the case, then unity should've come up with a better name other than subscene... like EntityBakerGroup, ECSBundle, EntityIngredients?? 😆

[glossy gorge]

EntityKitchen

[cunning perch]

Just keep going with the baker analogy

[glossy gorge]

EntityOven

[pliant pike]

all good suggestions but sadly they settled on subscene

[rotund token]

my guess is the technology was created alongside the original megacity demo

where it was used to break the scene up into subscenes

to allow streaming them in and out as required, as well as for streaming lods

[cunning perch]

yep, sounds about right

[thorn trout]

How do i change fixed time step of dots physics? RN it is always 60fps

chaging here does not works

[rotund token]

state.World.GetExistingSystemManaged<FixedStepSimulationSystemGroup>().Timestep = 1 / 20f;

[thorn trout]

i need to update every time?

is it not a global config?

[rotund token]

only need to set it once

(per world creation)

but no, there's no config atm unless you create one

[thorn trout]

it works

Thank you

You are wizard of dots

Everywhere i check for dots tutorial it is different.
SystemAPI.Query, RefRW, ref, in

everyone is doing it different

[tribal pollen]

if your throwing events from systems for UI stuff, do you usually prefer to pass values into the event? or have the registered actions reach out to some static location?

[rustic rain]

No statics here for sake of multiplayer 😅

[thorn trout]

    {
        uint fixedTick = SystemAPI.GetSingleton<FixedTickSystem.Singleton>()
           .Tick;

        ServerUpdateConnectionsJob serverUpdateJob = new ServerUpdateConnectionsJob()
        {
            NetworkDriver = NetworkDriver
        };

        state.Dependency = serverUpdateJob.Schedule(state.Dependency);

        ReceiveDataJob receiveJob = new ReceiveDataJob()
        {
            NetworkDriver = NetworkDriver.ToConcurrent(),
        };

        state.Dependency = receiveJob.ScheduleParallel(state.Dependency);

struct ServerUpdateConnectionsJob : IJob
{
    public NetworkDriver NetworkDriver;

    public void Execute()
    {
        NetworkConnection c;

        while ((c = NetworkDriver.Accept()) != default(NetworkConnection))
        {
           // connections.Add(c);
            Debug.Log("Accepted a connection");
        }
    }
}

[BurstCompile]
public partial struct ReceiveDataJob : IJobEntity
{
    public NetworkDriver.Concurrent NetworkDriver;
    public unsafe void Execute(in NetworkedPeer peer, in Entity entity)
    {
        DataStreamReader stream;

        Assert.IsTrue(peer.Connection.IsCreated);

        NetworkEvent.Type cmd;

        while ((cmd = NetworkDriver.PopEventForConnection(peer.Connection, out stream)) != NetworkEvent.Type.Empty)
        {
            if (cmd == NetworkEvent.Type.Data)
            {
                uint number = stream.ReadUInt();

                Debug.Log("Got " + number + " from the Client adding + 2 to it.");

                number += 2;
            }
            else if (cmd == NetworkEvent.Type.Disconnect)
            {
                Debug.Log("Client disconnected from server");
            }
        }
        
    }
}````

Is it wrong?

Why do i need to call state.Dependency.Complete(); after serverUpdateJob.Schedule()?

is not receive job depending on it and running after it?

i`m having this error

but the receive job depends on serverupdatejob and needs to run after it

[rotund token]

i have a feeling
NetworkDriver = NetworkDriver.ToConcurrent(),
you just need to cache this before scheduling ServerUpdateConnectionsJob

i believe it's a false positive but I thought most of these had been fixed

uint fixedTick = SystemAPI.GetSingleton<FixedTickSystem.Singleton>()
   .Tick;
   
var concurrentDriver = NetworkDriver.ToConcurrent();

ServerUpdateConnectionsJob serverUpdateJob = new ServerUpdateConnectionsJob()
{
    NetworkDriver = NetworkDriver
};

state.Dependency = serverUpdateJob.Schedule(state.Dependency);

ReceiveDataJob receiveJob = new ReceiveDataJob()
{
    NetworkDriver = concurrentDriver,
};

state.Dependency = receiveJob.ScheduleParallel(state.Dependency);

uint fixedTick = SystemAPI.GetSingleton<FixedTickSystem.Singleton>()
   .Tick;
   
ServerUpdateConnectionsJob serverUpdateJob = new ServerUpdateConnectionsJob()
{
    NetworkDriver = NetworkDriver
};

ReceiveDataJob receiveJob = new ReceiveDataJob()
{
    NetworkDriver = NetworkDriver.ToConcurrent(),
};

state.Dependency = serverUpdateJob.Schedule(state.Dependency);
state.Dependency = receiveJob.ScheduleParallel(state.Dependency);

i believe both of these would work

[thorn trout]

Yes, it does works

Thank you tertle

[misty wedge]

I think I'm gonna make a forum post about the weird scene loading issues I have. Still have no idea why it's breaking...

[rotund token]

i forget what the issue was

[misty wedge]

It not wanting to load a subscene if it contains an entity that references a game object

Error when processing 'AsyncLoadSceneJob(/StreamingAssets/EntityScenes/6086a43b86fc4d648a3ce1d94c0b822a.0.entities)': The given key 'PoolStaticSprite (UnityEngine.GameObject)' was not present in the dictionary.

I could work around it by storing an addressable string on it instead, and loading the game object that way, but it's very annoying IMO and seems like a bug

[rotund token]

Was this in editor or just build

[misty wedge]

Just in the build

[rotund token]

Ah yeah ok

[misty wedge]

Everything works fine in the editor

[rotund token]

Feel like I and a few others had something similar but just referencing managed objects in builds having issue

[misty wedge]

Yeah that was @rustic rain , baked VisualTreeAssets would break the scene loading too

I don't know if they managed to fix the issue for them, but it also broke for me (but worked for you iirc for some reason)

It also works for Sprite references, which is really odd, considering those are also UnityEngine.Objects

I guess I'll ask on the forums 🤷‍♀️

[rotund token]

Nah I managed to repo it

[misty wedge]

Ah really? What was the issue

[rotund token]

I didn't dig into it

I don't have much reason to make a build atm

[misty wedge]

What triggered it?

[rotund token]

Just going to wait and see start next entities version does, and if its still an issue make a fuss

[rotund token]

I didn't test but I think it was unity versions not entities versions

[misty wedge]

But that just seems like a bug then and not me doing something wrong at least