Contents:
FoV
FoV.is_visible
FoV.map_str
FoV.map_lis
FoV.origin
FoV.compute_fov()
FoV.is_blocking()
FoV.mark_visible()
Quadrant
Quadrant.cardinal
Quadrant.ox
Quadrant.oy
Quadrant.east
Quadrant.north
Quadrant.south
Quadrant.transform()
Quadrant.west
Row
Row.depth
Row.start_slope
Row.end_slope
Row.next()
Row.round_ties_down()
Row.round_ties_up()
Row.tiles()
shadowcasting()