construct_tunnel

-- construct_tunnel

os.loadAPI("/dorflib/api/dt")
os.loadAPI("/dorflib/api/dtb")

function construct_tunnel(zdistance)

    for i = 1,zdistance,1 do
        dt.dgforward()

        dtb.splace(turtle.placeDown)

        turtle.turnLeft()
        dtb.splace(turtle.place)

        dt.dgup()
        dtb.splace(turtle.place)

        dtb.splace(turtle.placeUp)

        turtle.turnRight()
        turtle.turnRight()
        dtb.splace(turtle.place)

        dt.fdown()
        dtb.splace(turtle.place)
        turtle.turnLeft()
    end

    turtle.turnRight()
    turtle.turnRight()

    for i = 1,zdistance,1 do
        dt.fforward()
    end

end

args = {...}

if #args < 1 then
    print("Usage: construct_tunnel [zdistance]")
else
    zdistance = tonumber(args[1])
    construct_tunnel(zdistance)
end