Usage: gms_script_set_roomid ( script_id )
Sets a custom script that is used to obtain the roomID. Using this, multiple rooms can be mapped to a single ID, effectively making them the same for the server. When roomIDs of players are the same, they can see each other. This function can be used to make players see eachother even though they are in different rooms.
Last message on 26 May 2017