bTunnel

local function dropOff()
    turtle.digDown()
    turtle.select(16)
    turtle.placeDown()
    for i = 1,15 do
        turtle.select(i)
        turtle.dropDown()
    end
end

local function tunnel(num)
    for i = 1,num do
        turtle.digUp()
        turtle.turnLeft()
        turtle.dig()
        turtle.up()
        turtle.dig()
        turtle.turnRight()
        turtle.turnRight()
        turtle.dig()
        turtle.down()
        turtle.dig()
        turtle.turnLeft()
        if turtle.getItemCount(15) > 0 then
            dropOff()
        end
        turtle.select(1)
        turtle.dig()
        turtle.forward()
    end
end
compID = 26
rednet.open("right")
id, msg = rednet.receive()
if id == compID then
    tunnel(msg)
end