Associates a listener with a named entity property. Whenever that field changes the specified user event is triggered. Valid property names are:
The name of the entity cannot be listened to because it cannot change. Several listeners (even with the same parameters) can be associated to each property.
|Name||the name of the named entity to listen to|
|Property||the property of the named entity to listen to|
|user_event_n||the user event to trigger|
()addNamedEventListener("Invasion", "state", 6);