Wish there was some way to make minecarts move. Maybe if you made a large minecart item that you couldn't pick up, and used a series of subtle offsets
EDIT:
Did a basic test of a timer moving a torch across the ground. Moving in small increments and a rapid pace shouldn't cause much of a performance problem, since one of the devs something about how it already updates every frame.
Last edited by Lmaoboat on Sun Oct 14, 2012 7:00 am, edited 2 times in total.
I was thinking you could attack it to make it push back a square.
Then I was thinking of doing a puzzle where you have to push the cart onto a pressureplate.