this is connected

this:has_plug()
Is this connected?

A function that detect the socket conncection, only work for INX socket only! If there's no connection on one of the input socket, the reads[reading] that point to the input socket returns "disconnected" otherwise it returns integer of input value

Add detector in which mode you are playing.
If you are in Edit, you can manually or in adventure to connect and disconnect cables.
If you are in Play adventure, use you builder to connect and disconnect cables.
If you are in Play custom, please go to this level page and press "Edit" to download and change cable connection.