Changes

Mining the floor or ceiling of a cave does not create tunnels. Instead, it raises (for ceiling) or lowers (for floors) the cave. Note that, as with [[digging]], these actions affect the closest corner of the tile and not the tile itself. A ceiling tile can be mined upward around 31 times before it is too high to reach (given that you haven't lowered the floor before you start). A floor tile can be mined downward all the way to a maximum of ?? timesbit below the water level.

Excavating a new tile from a tile that has a raised ceiling will not create a new tile with the same ceiling height as the adjacent: the new tile will have the standard ceiling height for cave tiles. However, if you have lowered the floor you might excavate a new tile at the same floor level. If you have mined down the two floor corners that are in contact with the wall you mine down the floor will stay at that level (the ceiling will still have standard height, but at the new level). This is very useful for making tunnels, for example for boats, as you only have to reach the wished floor level on the first tile and the rest will go along in accordance to it.

Please note that when mining the floor you can create uneven surfaces thus making make it hard to move around in your mine. For the best access in a mine it is recommended not to mine the floor directly unless you have a plan for it. The actions "mine up" and "mine down" create somewhat predictable slopes of 20 and are good if you want a sloped passage, although floor mining can be very useful if used in the right way. Proceed floor excavations with caution as the mining is not easily reversed. When digging you can always drop the dirt and refill the hole - this is '''not''' possible when mining.

You can fix slopes with [[Concrete]] : one concrete will raise one corner, the equivalent of 1 dirt, (or 1 mine action.)

It's advised that you mine cave ceilings when in need of rock shards , since it's faster than mining the caves cave walls.