$files="barrel.bmp
barrel elevator.bmp
barrels.bmp
cart coal.bmp
cart dirt.bmp
cart elevator.bmp
cart empty.bmp
cart gold.bmp
cart jems.bmp
cart rock.bmp
chest.bmp
crates.bmp
cross x 1 corner.bmp
cross x 2 corner.bmp
cross x.bmp
curve 90 1 wall.bmp
curve 90 2 wall.bmp
curve 90.bmp
curve 90 tunnel.bmp
deadend 1 corner.bmp
deadend 1 wall p.bmp
deadend 1 wall perp.bmp
deadend 2 corner.bmp
deadend.bmp
deadend collapse.bmp
deadend stop.bmp
deadend tunnel.bmp
sidestep.bmp
sidestep tunnel.bmp
square table.bmp
straight 1 corner.bmp
straight 1 wall.bmp
straight 2 corner.bmp
straight.bmp
straight tee.bmp
straight tunnel.bmp
straight wall and corner.bmp
switch 90 1wall.bmp
switch 90.bmp
switch 90 tunnel.bmp
switch double side.bmp
switch double side tunnel.bmp
switch side 1wall a.bmp
switch side 1wall b.bmp
switch side 1wall c.bmp
switch side.bmp
switch side tunnel.bmp";