bammex's roller coaster

this is no longer bammex's challenge but it is now my roller coaster the challenge thing was actually just me messing around and experimenting with pistons but here is the roller coaster enjoy its full of action. the server is still a work i progress its not going 2/47 but i am not sure if people can join if the online mode is set to false cause i don't have premium mine craft account but if any one can tell me if people can join with it offline please tell me in the comments section below thanks.