you have the world map coords - the underground ones are corresponding (but there is no official underground world map afaik)
you have a cave entrance Coord on world map - which are cave entrance Coords for underground too
another method would be you're doing your
own local maps of both over- and underground and start with that at cave entrance it would have Coords 0,0 on both
now we imagine you know an insecure minehole in a village somewhere in the area and want to dig through to it from the cave,
you'd have the Coords on your local overground map - the same goes for underground - there you go...
i.e.
cave entrance on world map 100,100 - so it would be 100,100 on underground map too
minehole on world map 155,132 - so it would be 155,132 on underground map too
cave entrance on local map 0,0 - so minehole would be 55,32
and no i don't know if your bot can work with that coords
