Turtle Quarry

local tArgs = {...}
local hasChest = true
local enderChestSlot = 15

function fuel()
    if turtle.getFuelLevel() < 10 then
        turtle.select(16)
        turtle.refuel(1)
        turtle.select(1)
        print("turtle has refueled")
    end
end

function enderchest()
    if hasChest then
        print("supplying items")
        turtle.select(enderChestSlot)
        turtle.dig()
        while not turtle.place() do turtle.dig() end
        for i = 1, 14 do
            turtle.select(i)
            turtle.drop(64)
        end
        turtle.select(enderChestSlot)
        turtle.dig()
        turtle.select(1)
    end
end

local depth = 60
function run()
    for y = 1, tArgs[1] do
        turtle.dig()
        while not turtle.forward() do turtle.dig() end
        print("going down")
        for x = 1, depth do
            fuel()
            turtle.digDown()
            turtle.down()
        end
        enderchest()
        turtle.dig()
        while not turtle.forward() do turtle.dig() end
        for i = 1, depth do
            turtle.digUp()
            fuel()
            turtle.up()
        end
        enderchest()
        print("")
    end
    print("program has ended, restarting")
end

run()
term.clear()
term.setCursorPos(1, 1)
shell.run("startup")