How to make a ComponentSystemGroup to exist only on client / server side ?

[broken robin]

Like

   [UpdateInGroup(typeof(SimulationSystemGroup))]
    [UpdateBefore(typeof(GameLoopSimulationPreTransformGroup))]
    public partial class GameLoopInputGroup : ComponentSystemGroup
    {
    }

Would this :

 [WorldSystemFilter(WorldSystemFilterFlags.ClientSimulation | WorldSystemFilterFlags.ThinClientSimulation)]

Work by default on SystemGroups ? or is there other steps to take in consideration ?

[trail laurel]

you probably want to just have custom bootstrap, which creates world only with systems from client/server assemblies

[broken robin]

any example of that ?

[trail laurel]

just default bootstrap is good example

DefaultWorldInitialization has a public static method to create default world

you can just look at it's source

to see how world gets created

and modify any step you want

[pine mango]

There's a second param in world system filter that works only on system groups and let's you define the default world systems will be added to that are in this group

For example
[WorldSystemFilter(Client | Server, Client)]

Means the group will exist on both client and server, but systems added to the group without their own world system filter will only be added to client

[broken robin]

PERFECT