obsidian

local side = 1
function forward()
turtle.digDown()
turtle.forward()
local items = turtle.getItemCount(16)
if items == 64 then
reboot()
 end
 end
function turn()
if side == 1 then
turtle.turnRight()
else turtle.turnLeft()
 end
 end
function row()
forward()
forward()
forward()
forward()
forward()
forward()
forward()
forward()
turtle.digDown()
turn()
turtle.forward()
turn()
if side == 1 then
side = 0
else side = 1
 end
 end
function lastRow()
forward()
forward()
forward()
forward()
forward()
forward()
forward()
forward()
 end
function level()
row()
row()
row()
row()
row()
row()
row()
row()
lastRow()
turtle.turnLeft()
turtle.turnLeft()
turtle.down()
  end
function go()
print("How many layers do you want to dig")
local times = read()
while times ~= 0 do
 end
go()
end