A big part of updating the EBF4 map controls for mobile is making sure all of the interactive elements actually have the hitboxes they appear to have. In the original game, you needed to click on an NPC’s feet to talk to them, or on the tile in front of a sign to read it, for example. This was pretty awkward, even on PC, and has been fixed now. NPCs, foes, and slime cats now have two tiles you can click on, and smaller objects like item pedestals have been centered better on their single tile. This is especially useful for touch controls where there is less feedback, but helps a lot with mouse controls too.