tbt_mine.lua

function digStrip()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
end

turtle.refuel()

while turtle.detect() do
    digStrip()

    turtle.turnRight()
    digStrip()

    turtle.turnLeft()
    turtle.turnLeft()

    turtle.forward()
    digStrip()

    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
end