Stairs

local tArgs = {...}

toDep = tonumber(tArgs[1])
toWid = tonumber(tArgs[2])

print("Digging staircase "..toWid.." blocks wide and "..toDep.." blocks deep.")

function staircase(dep)
 for i=1, dep do
  turtle.digDown()
  turtle.digUp()
  turtle.up()
  turtle.digUp()
  turtle.down()
  turtle.down()
  if i < dep then
   turtle.dig()
   turtle.forward()
  end
 end
 for i=1, dep do
  turtle.back()
  turtle.up()
 end
end

for i=1, toWid do
 staircase(toDep)
 turtle.turnRight()
 turtle.forward()
 turtle.turnLeft()
end