tunneltest

--tunneltest

    --even easier tunnel.  is always 3 for now, and always go 10
            --FUNCTIONS

            -- Ensure turtle goes up
            function goUp()
                    while not turtle.up() do
                            upDig()
                    end
            end

            --Ensure turtle goes down
            function goDown()
                    while not turtle.down() do
                            downDig()
                    end
            end

            -- Ensure turtle moves forward
            function goForward()
                    while not turtle.forward() do
                            forwardDig()
                    end
            end

    Dirt=1
    Cobblestone=2
    CobblestoneZ=64
    Length=10

    function VoidAhead()
            turtle.select(Dirt)
            turtle.place()
            turtle.dig()
    end

    function VoidAbove()
            turtle.select(Cobblestone)
            turtle.placeUp()
            CobblestoneZ=CobblestoneZ-1
    end
     function VoidAbove2()
            turtle.select(Cobblestone)
            turtle.placeUp()
            turtle.digUp()
    end
    goUp()
    goUp()

--tunnel ceiling, 10 long...


    for i=1, Length do

            if turtle.detect() == false then
                    VoidAhead()
                    goForward()
                    else if turle.detect() == true then
                    goForward()
            end
    end

    if turtle.detectUp() == false then
                    VoidAbove()
    end
    end
for i=1, Length do
    shell.run('go back')
end
shell.run('go down 2')