RoomHolower

print("Dimensions of room?")
startingSize = tonumber(read())
direction = 0
function line()
    local size = startingSize
    while size > 0 do
        turtle.digUp()
        turtle.digDown()
        dig = false
        counter = 20
        while dig == true and counter > 0 do
            turtle.dig()
            counter = counter-1
        end
        moved = turtle.forward()
        if moved == false then
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.forward()
        end
        size = size-1
    end
end

function level()
    local size = startingSize
    while size > 0 do
        turtle.digUp()
        turtle.digDown()
        line()
        if direction == 0 then
            turtle.turnRight()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()
            direction = 1
        elseif direction == 1 then
            turtle.turnLeft()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()
            direction = 0
        end
        turtle.digUp()
        turtle.digDown()
        size = size-1
    end
end

level()