// this is smaller than 112 qu, so a 112 qu high corridor (7 of 8 grid units in
// the 16 grid, and the 8th unit used for wall/floor) just lets a player jump!
// this is smaller than 112 qu, so a 112 qu high corridor (7 of 8 grid units in
// the 16 grid, and the 8th unit used for wall/floor) just lets a player jump!