neon escarp
I'm using a MonoBehavior to handle some things and I want to have this MonoBehaviour create entities in my subscene. How can I get the correct World to spawn the entities in from my MonoBehaviour?
Also if this is an antipattern what's a better solution to have the GameObject scene interact with the subscene/World?
pale ingot
Is this during baking (before pressing play) or during runtime?
neon escarp
during runtime
Short story is I want to use PlayerInputManager's automatic local multiplayer handling to create stub MonoBehaviours and then create entities associated with them to handle gameplay in ECS.
pale ingot
foreach (World w in World.All)
{
// Find the world you want here.
}```THat's the best way? Just by name or something?
THere's no way to get it from the SubScene component for example?
pale ingot
Subscenes really only exist during bake. At runtime, all subscenes dump their entities into a single world. They might have some reference back to the original subscene they were created in but that connection isn't enforced.
neon escarp
pale ingot
And depending on the subscene, they may be copied across multiple worlds. Like multiple client worlds.
neon escarp
What am I looking at here? I'm using Netcode so maybe tthat's complicated things
I want things inside the "Shared Data" world
but if I use World.DefaultGameObjectInjectionWorld they end up in the outer list
Is that a world? Or maybe I'm confusing world with a parent/child relationship or something
pale ingot
Yeah, the default injection world isn't the actual gameplay world when using netcode. Netcode creates client and server worlds (depending on your setup) where the entities actually live.
neon escarp
Oh right so maybe I need to get the world from netcode?
pale ingot
If you have thin clients enabled, you can have multiple shared data subscenes.
What you want to do is use that foreach above, then each world:csharp foreach (World w in World.All) { // Find the world you want here. if ((w.Flags & WorldFlags.GameClient) != 0) // World is a client world, contains shared data subscenes. Do stuff. w.EntityManager.CreateEntity() // Stuff. }
neon escarp
I see - ok let me give this a shot.
Would it be generally safe to cache this within the context of a network session?
maybe I'm prematurely optimizing, let me see if it works first
pale ingot
The world itself? Probably... maybe. Worlds change very rarely but it's possible the world reference can get invalidated (think thin client destruction).
neon escarp
yeah alright. I'll not worry about it for now
pale ingot
Is there a reason you're using monobehaviors and not SystemBase?
neon escarp
I can't imagine looping over all the worlds is very performance heavy
neon escarp
Is there a reason you're using monobehaviors and not SystemBase?
PlayerInputManager only works in MonoBehaviour world
afaik
pale ingot
Not at all, at most you can have about 128 worlds (quantity may have been bumped in recent netcode patches). Iteration is negligable.
neon escarp
I could probably have the entity creation happen from a SystemBase though
pale ingot
The structural changes (creation of entities) will be the main problem