Rework excavation/dumping tiles and tool to make more streamlined and intutive use.
By Default:
Excavation/dumping level tool matches tile height and orientation at pointer location (and changes accordingly when moved) unless changed by tool options. Then tool remains at height/orientation set regardless of pointer change of location. Reverts back to autochanging after tile selection is drawn (and/or right click?).
Orientation of tiles surrounding tile at pointer location is completely ignored at all times. (autochanges from flat to sloped terrain is reflected in tool option)
Having been set as above: Excavation/dumping tiles need no longer remain on the map after depth/height has been reached and can be autoremoved after set height has been reached. Saving the player from the endless chore of having to do it manually.
This sets the tool to both follow existing terrain orientation and EASILY override it as desired.