9x9 UnderGround Room Maker

print("SkiFire13 underground room maker")
print("Insert 9 coal in the first slot")
print("Insert 10 glass in the second slot")
print("Insert 10 glowstone in the third slot")
print("Press ENTER to start")
io.read()

local Start, Finished
Start = 1
Finished = 1

function digThreeForOne()
        turtle.dig()
        turtle.forward()
        turtle.turnLeft()
        turtle.dig()
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.dig()
        turtle.turnLeft()
        turtle.back()
end

function digThreeForThree()
        for i=0,2,1 do
        digThreeForOne()
        turtle.forward()
        end
        for i=0,2,1 do
        turtle.back()
        end
end

function placeGlowDown()
        if turtle.detectDown() then
                turtle.digDown()
                turtle.down()
                turtle.digDown()
                turtle.select(3)
                turtle.placeDown()
                turtle.up()
                turtle.select(2)
                turtle.placeDown()
        end
end

function placeGlowUp()
        if turtle.detectUp() then
                turtle.digUp()
                turtle.up()
                turtle.digUp()
                turtle.select(3)
                turtle.placeUp()
                turtle.down()
                turtle.select(2)
                turtle.placeUp()
        end
end

function placeGlow(Start, Finished)
        if Start==0 then
            placeGlowDown()
        end
        if Finished==0 then
            placeGlowUp()
        end
end

function Flat()
        digThreeForOne()
        turtle.forward()

        turtle.dig()
        turtle.forward()
        placeGlow(Start, Finished)
        turtle.back()

        for i=0,2,1 do
                digThreeForThree()
                for i=0,2,1 do
                turtle.forward()
                end
        end
        digThreeForOne()
        placeGlow(Start, Finished)
        for i=0,1,1 do
                turtle.turnLeft()
                turtle.forward()
        end
        turtle.turnRight()
        digThreeForThree()
        for i=0,1,1 do
                turtle.turnLeft()
                for i=0,2,1 do
                        turtle.forward()
                end
                turtle.turnRight()
                digThreeForThree()
        end

        turtle.turnLeft()
        turtle.turnLeft()
        turtle.forward()
        turtle.forward()

        digThreeForThree()
        for i=0,1,1 do
                turtle.turnLeft()
                for i=0,2,1 do
                        turtle.forward()
                end
                turtle.turnRight()
                digThreeForThree()
        end
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.turnRight()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.turnLeft()

        digThreeForOne()
        placeGlow(Start, Finished)

        turtle.turnLeft()
        turtle.turnLeft()

        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()

        digThreeForOne()
        placeGlow(Start, Finished)

        turtle.back()
        turtle.back()
        turtle.back()
        turtle.back()

        turtle.turnRight()
        placeGlow(Start, Finished)

        turtle.back()
        turtle.back()
        turtle.back()
        turtle.back()
        turtle.back()
        turtle.back()

end

turtle.refuel(9)

Start = 0
Flat()
Start = 1
turtle.digUp()
turtle.up()
Flat()
turtle.digUp()
turtle.up()
Flat()
turtle.digUp()
turtle.up()
Finished = 0
Flat()
Finished = 1

turtle.down()
turtle.down()
turtle.down()
turtle.down()



print("Turtle has finished!")