Dependency Management

See the SystemsR3 DI documentation for more information on the general DI abstractions available here.

EcsR3 helpers

There is a helper which allows you to get an IObservableGroup directly from the container, this internally gets the instance of the IEntityCollectionManager and requests an observable group of a given type like so:

// By group
var observableGroup = container.ResolveObservableGroup(new MyGroup());
// By required components
var observableGroup = container.ResolveObservableGroup(typeof(PlayerComponent));

This can be handy when you want to setup Computed objects which computed from a group, an example of this can be seen in the Roguelike example.