Events

There are a variety of events on World and Entity you can use.

Events for component addition and entity creation are invoked after IInitable.Init.

Events for component removal and entity deletion are invoked before IDestroyable.Destroy. This allows an event handler to inspect the component while it is still valid.

This ensures that component states viewed through events are valid.

Generic Events

Generic delegates in C# cannot be unbounded. You cannot have am unbound entity.OnComponentAdded += (Entity e, T component) => { } event for example.

Frent handles this with the IGenericAction<Entity>.Invoke<T>(Entity param, ref T type) interface.

Frent provides generic events in the form of Entity.OnComponentRemovedGeneric and Entity.OnComponentAddedGeneric.