no support. Your suppose to improvise. Its random. That's why there are trees and you can usually break your island to get blocks as well. Levers can be used to blow up txt, torches to brighten up under ground caves, cactus you can place cactus down when someone comes at you (mainly on the sand map) and they can get damaged and slowed, zombie flesh is a supplement food until you get more from other people or other islands/chests.
