class type ctrl_message_receiver = object .. end
method name : string
The name of this receiver
method receive_message : controller -> string -> string array -> unit
This function is called when a broadcast message is received.
The first string is the name of the message, and the array are
the arguments.
method receive_admin_message : controller -> string -> string array -> unit
This function is called when a broadcast admin message is received.
The first string is the name of the message, and the array are
the arguments.
