dig

args = {...}
turtle.select(1)

function dig()
    for i = 1, 2 do
        turtle.digDown()
        turtle.forward()
    end
    turtle.digDown()
end

function layer()
    dig()
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
    dig()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
    dig()
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()
    turtle.down()

end

function digHole()
for i = 1 , args[1] do
    layer()
    full = turtle.getItemCount(16)
    if full > 1 then
        for e = 1, i do
            turtle.up()
        end
        for u = 1, 16 do
            turtle.select(u)
            turtle.dropUp()
        end
  turtle.select(1)
        for e = 1, i do
            turtle.down()
        end
    end
end
for i = 1, args[1] do
 turtle.up()
end
for i = 1, 16 do
  turtle.select(i)
  if turtle.refuel(0) then
    local halfStack = math.ceil(turtle.getItemCount(i)/2)
    turtle.refuel(halfStack)
  end
turtle.dropUp()
end
end

for i = 1, args[2] do
  digHole()
  turtle.turnRight()
  turtle.forward()
  turtle.forward()
  turtle.forward()
  turtle.turnLeft()
end