Caeric, on 17 February 2013 - 03:16 PM, said:
Since the introduction of the redstone block, I've been toying with the idea of a vehicle -- that is, because redstone blocks can be affected by pistons, I am hoping that it's possible to build an independent device of redstone blocks and pistons that can inch along without any need for direct control.
I don't think it's possible still, but I'm not very savvy at redstone stuff. I'd love to be proven wrong.
It isn't possible to create a fully automatic redstone vehicle, outside of minecart glitches. The RS block(s) that you use to power the pusher pistons need to be at least on level with them, leaving puller pistons as the only way to move them. But it's then impossible to move the puller pistons without either more puller pistons (which suffer from the same problem) or some sort of block swapper that shifts a pusher piston in behind the puller piston- which will require another mechanism to move it and exponentially increase the size without offering a solution.
However, it is possible to create semi-automatic flying machines that can move (slowly) back and fourth, without wasting any resources. They're big enough to hold several players, but their only real uses are glowstone mining (you'll need good archers to stop ghasts from blowing it up, though), and PvP (dropping TNT from the sky).
Here's a great topic in which the concept of flying in Minecraft is discussed in much detail:
http://www.minecraft...flying-machine/