How to detect when a sprite is added to a group

[swissnetizen]

I've got a group, I would like to know if it is possible to bind events to it to detect if a sprite has been added to it.

I understand that I could check every frame if a new sprite was added, but I hope there is a better way.

Something like:

group.events.newSpriteAdded.add("");

[rich]

sprite.events.onAddedToGroup.add(yay, this);

sprite.events.onRemovedFromGroup.add(ohTheHorror, this);

[swissnetizen]

This isn't exactly what I'm looking for. I don't have the ability to attach events to sprites themselves. I want to attach the event to the group itself

[rich]

No then. Although it begs the question how exactly you're adding things to a Group without knowing what you're adding.

[swissnetizen]

I've got an object which is supposed to monitor the group and see if any new sprites are added, the reason for this is that it needs to perform some setup.

I'm going to go with manually calling the setup function every time something for every new sprite.