turtle digg

function sendError()
    turtle.digDown()
    turtle.select(15)
        while not turtle.placeDown() do turtle.digDown() end
    rs.setOutput("bottom",true)
    read()
    rs.setOutput("bottom",false)
    turtle.select(15)
    turtle.digDown()
end


function fuelCheck()

    if turtle.getFuelLevel() < 5 then
        turtle.select(1)
        turtle.refuel(5)
    end
        if turtle.getFuelLevel() == 0 then
                print("Need Fuel")
        sendError()
                turtle.select(1)
                turtle.refuel(turtle.getItemCount(1)-10)
        end
end


local function forward()
    fuelCheck()
        while not turtle.forward() do fuelCheck() turtle.dig() end
end

local function placeDown()
    fuelCheck()
        while not turtle.placeDown() do turtle.digDown() end
end

function invCheck()
    if turtle.getItemCount(11) > 0 then
    turtle.digDown()
    turtle.select(16)
        placeDown()
    for i = 2, 13 do
        turtle.select(i)
        turtle.dropDown()
    end
    turtle.select(16)
    turtle.digDown()
    end
end


function Turn180Left()
        turtle.turnLeft()
    turtle.dig()
        forward()
        turtle.turnLeft()
end

function Turn180Right()
        turtle.turnRight()
    turtle.dig()
        forward()
        turtle.turnRight()
end



for i = 1, 70 do
    invCheck()
    turtle.dig()
    turtle.digUp()
    turtle.digDown()
    forward()
end

for i = 1, 70 do
    Turn180Left()
    for i = 1, 140 do
        invCheck()
        turtle.dig()
        turtle.digUp()
        turtle.digDown()
        forward()
    end
    Turn180Right()
    for i = 1, 140 do
        invCheck()
        turtle.dig()
        turtle.digUp()
        turtle.digDown()
        forward()
    end
end