Tatianka/alg-vis — comment on commit 21b9d4df888e92712ccd7ed620e3a1d0bdf1399f
File:  line 0
By Tatianka:

Everything like this is done in the class Finger. There are also prepared methods for moving with finger that looks clearer. So soon T.finger will be rewritten by sth like Finger.moveDown(); or Finger.moveTo(); . I think it is little useless to use method goTO, because Finger remembers the node it points at, so it has the coordinates from this node.