mine_one.lua

local MaxDistanceBetweenHoles = 4
local blockCountTick = 0

turtle.refuel()

while turtle.detect() do
    turtle.dig()
    turtle.forward()
    blockCountTick = blockCountTick + 1
    turtle.digDown()

    if blockCountTick == MaxDistanceBetweenHoles then
        turtle.turnRight()
        turtle.dig()
        turtle.forward()
        turtle.dig()
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.forward()
        turtle.dig()
        turtle.forward()
        turtle.dig()
        turtle.turnRight()
        turtle.turnRight()
        turtle.forward()
        turtle.turnLeft()

        blockCountTick = 0
    end
end