betterTunnel

local args = {...}

local dist = tonumber(args[1])

local movementCount = 0

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

function moveForward()
    turtle.forward()
    movementCount = movementCount + 1
end


while movementCount < dist do
    if turtle.detect() then
        dig()
    else
        moveForward()
    end
end