Modification of evanmor's worm engine, with more segments and a different sprite as an example. Also uses a turn engine to limit the amount the worm can turn, simulating the behavior of worms in Terraria. Additionally, this fixes the issue where it falls apart upon reaching its target; it will now circle back around. UPDATE: Fixed it, I messed up some X and Y stuff. (Original sentence:I'm aware that turning is broken, I have no idea how to fix it.) Play on Forkphorous: https://forkphorus.github.io/#404836346
@evanmor for worm engine @SilverRua for turn engine
