turtle

--[[ Torches in Slot 16
    Enderchest to Storage System in 15
    Enderchest filled with Torches in 14
    If you don't want this to use torches
    you'll need to modify the script a little.
    I'll tell you how.
    Go to function torchtunnel() and find these:
     MoreTorches()
     turtle.select(16)
     turtle.placeDown()
     turtle.select(1)
    and then delete them, or simply do the
    two half square thingies followed by the
    two dashes like the ones this entire thing
    is written inside of and your turtle won't
    place any torches.f ]]--

local tArgs = {...}
local length = tonumber(tArgs[1])
local shaft = tonumber(tArgs[2])

turtle.select(1)

function Front()
  while turtle.detect() do
    turtle.dig()
    sleep(.5)
  end
end

function Top()
  while turtle.detectUp() do
    turtle.digUp()
    sleep(1)
  end
end

function Go()
  Front()
  turtle.forward()
  Top()
  Bottom()
end

function Bottom()
    turtle.digDown()
    turtle.select(1)
end

function Refuel()
  for n = 1,13 do
    turtle.select(n)
    turtle.refuel()
  end
end

function CheckFuel()
  if turtle.getFuelLevel() < 100 then
    Refuel()
    NoFuel()
  end
end

function NoFuel()
  while turtle.getFuelLevel() < 100 do
    print("I need fuel, put some in.")
    Refuel()
    sleep(10)
  end
end

function torchtunnel()
  for b = 1,5 do
    Go()
    DropOff()
  end
    MoreTorches()
    turtle.select(16)
    turtle.placeDown()
    turtle.select(1)
    CheckFuel()
end

function MoreTorches()
  if turtle.getItemCount(16) == 0 then
    turtle.select(14)
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.place()
    turtle.select(16)
    TorchChest()
    turtle.select(14)
    turtle.dig()
    turtle.select(1)
    turtle.turnLeft()
    turtle.turnLeft()
  end
end

function TorchChest()
  if turtle.suck() then
    print("Torches Received")
  else
    while turtle.suck() == false do
      print ("Chest is out of Torches!")
      sleep(10)
    end
  end
end

function DropOff()
  if turtle.getItemCount(13) > 0 then
    print("full")
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.select(15)
    turtle.place()
      for j = 1,13 do
        turtle.select(j)
        turtle.drop()
      end
    turtle.select(15)
    turtle.dig()
    turtle.select(1)
    turtle.turnLeft()
    turtle.turnLeft()
  end
end

function Ready()
  for i = 1,length,1 do
    torchtunnel()
  end
end

function Start()
  for h = 1,shaft,1 do
    Ready()
    local num = length*5
      for c = 1,num,1 do
        turtle.back()
      end
    turtle.turnLeft()
    Go()
    Go()
    Go()
    turtle.turnRight()
  end
end

Start()