miner.lua

function digAll()
turtle.digUp()
turtle.digDown()
end

for i = 0, 999 do

if i % 3 == 0 or - == 0 then
turtle.refuel()
end
    turtle.dig()
    turtle.forward()
    turtle.turnRight()
    turtle.forward()
    digAll()
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    digAll()
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
  end