3x5Stairs

depth = 0
write("Stairs = slot 1-3, Coal(or any fuel source) = slot 4-5, Torches = slot 6-7. ~ Now what is the depth of stairs you would fancy?: ")
depth = read()
depthNew = depth - 1
stairAmount = depth * 3
currentStair = turtle.getItemCount(1) + turtle.getItemCount(2) + turtle.getItemCount(3)
ItemFuel = turtle.getItemCount(4) + turtle.getItemCount(5)
local Fuel = 0
local NeedFuel = 0
torches = (depth / 6) * 2
torch = 5
straif = 0

--Functions
function turnAround()
    turtle.turnLeft()
    turtle.turnLeft()
end
function goForward()
    while turtle.detect() do
        turtle.dig()
    end
    turtle.forward()
end
function goDown()
    while turtle.detectDown() do
        turtle.digDown()
    end
    turtle.down()
end
function goUp()
    while turtle.detectUp() do
        turtle.digUp()
    end
    turtle.up()
end
function torchMe()
    torch1 = 0
    if turtle.getItemCount(6) > 0 then
        stair1 = 1
    elseif turtle.getItemCount(7) > 0 then
        stair1 = 2
    end

    if stair1 == 1 then
        turtle.select(6)
        turtle.place()
    elseif stair1 == 2 then
        turtle.select(7)
        turtle.place()
    end
end
function stairMe()
    stair1 = 0
    if turtle.getItemCount(1) > 0 then
        stair1 = 1
    elseif turtle.getItemCount(2) > 0 then
        stair1 = 2
    elseif turtle.getItemCount(3) > 0 then
        stair1 = 3
    end

    if stair1 == 1 then
        turtle.select(1)
        turtle.place()
    elseif stair1 == 2 then
        turtle.select(2)
        turtle.place()
    elseif stair1 == 3 then
        turtle.select(3)
        turtle.place()
    end
end
function mine()
    while turtle.detect() do
        turtle.dig()
    end
end
function mineUp()
    while turtle.detectUp() do
        turtle.digUp()
    end
end
function mineDown()
    while turtle.detectDown() do
        turtle.digDown()
    end
end
function trippleMine()
    goForward()
    while turtle.detectUp() or turtle.detectDown() do
        turtle.digUp()
        turtle.digDown()
    end
end
function check()
  if ItemFuel == 0 then
    print("No Fuel Items")
  else
    print("there is fuel")
  end
  repeat
    if turtle.getFuelLevel() == "unlimited" then
      print("NO NEED FOR FUEL")
      Needfuel = 0
    elseif turtle.getFuelLevel() < 100 then
        if turtle.getItemCount(4) > 0 then
            turtle.select(4)
            turtle.refuel(1)
        elseif turtle.getFuelLevel(5) > 0 then
            turtle.select(4)
            turtle.refuel(1)
        end
      Needfuel = 1
      ItemFuel = ItemFuel - 1
    elseif NeedFuel == 1 then
      Needfuel = 0
    end
  until NeedFuel == 0
end
function mineSides()
    turtle.turnLeft()
    mine()
    turnAround()
    mine()
    turtle.turnLeft()
end
--logical functions
function wholeEnd()
        check()
        --1
        goUp()
        goForward()
        goUp()
        turtle.turnLeft()
        mine()
        turnAround()
        mine()
        --2
        goDown()
        mine()
        torchMe()
        turnAround()
        mine()
        torchMe()
        --3
        goDown()
        mine()
        turnAround()
        mine()
        --4
        goDown()
        mine()
        turnAround()
        mine()
        --5
        goDown()
        mine()
        turnAround()
        mine()
        goForward()
        turtle.turnRight()

        torch = 0
end
function stair()
    if straif == 0 then
        stairMe()
        turtle.turnRight()
        goForward()
        turtle.turnLeft()
        stairMe()
        turtle.turnRight()
        goForward()
        turtle.turnLeft()
        stairMe()
        goUp()
        goForward()
        straif = straif + 1
    elseif straif == 1 then

    stairMe()
        turtle.turnLeft()
        goForward()
        turtle.turnRight()
        stairMe()
        turtle.turnLeft()
        goForward()
        turtle.turnRight()
        stairMe()
        goUp()
        goForward()

        straif = 0
    end
end
function whole()
    check()
    if torch == 5 then
        --1
        goUp()
        turtle.turnLeft()
        mine()
        turnAround()
        mine()
        --2
        goDown()
        mine()
        torchMe()
        turnAround()
        mine()
        torchMe()
        --3
        goDown()
        mine()
        turnAround()
        mine()
        --4
        goDown()
        mine()
        turnAround()
        mine()
        --5
        goDown()
        mine()
        turnAround()
        mine()
        turtle.turnLeft()
        --6
        goUp()
        --7
        goUp()

        torch = 0
    elseif torch < 6 then
        --1
        goUp()
        turtle.turnLeft()
        mine()
        turnAround()
        mine()
        --2
        goDown()
        mine()
        turnAround()
        mine()
        --3
        goDown()
        mine()
        turnAround()
        mine()
        --4
        goDown()
        mine()
        turnAround()
        mine()
        --5
        goDown()
        mine()
        turnAround()
        mine()
        turtle.turnLeft()
        --6
        goUp()
        --7
        goUp()

        torch = torch + 1
    end
end
torchAmount = turtle.getItemCount(6) + turtle.getItemCount(7)
if currentStair < stairAmount then
        print( "You will need "..stairAmount.." pieces of any kind of stairs in slot 1-3. Press Y once filled or Press N to continue with out stairs")
        while true do
                local _, char = os.pullEvent( "char" )
                if char:lower() == "n" then
                        error()
                elseif char:lower() == "y" then
                        break
                end
        end
end
if torchAmount == 0 then
        print("you will need around "..torches.." torches in slot 3. Press Y once filled or Press N to continue with out torches")
        while true do
                local _, char = os.pullEvent( "char" )
                if char:lower() == "n" then
                        error()
                elseif char:lower() == "y" then
                        break
                end
        end
end

--StartMain
for i = 1,depthNew do
    check()
    whole()
    goForward()
end
for i = 1,1 do
    check()
    whole()
end
--EndMain

--StartSecondary
for i = 1,1 do
    check()
    wholeEnd()
end
--EndSecondary
currentStair = turtle.getItemCount(1) + turtle.getItemCount(2) + turtle.getItemCount(3)
--StartStairs
if currentStair < stairAmount then
    print("Done!")
else

    for i = 1,depth do
        stair()
    end

    print("Done!")
end