Ceiling

--Ceiling
--NAPTlME

--Main
function ceiling()
  term.write("How many blocks forward?\n")
  local length = tonumber(read())
  term.write("How many blocks to the right?\n")
  local width = tonumber(read())
  term.write("How many blocks up?\n")
  local height = tonumber(read())
  term.write("Now raising the roof.")
  sleep(1)
  turtle.turnRight()
  digCeiling(length, width, height)
end

--Dig
function digCeiling(length, width, height)
  for i =1,height do
    for j = 1,length do
      local u = 1
      for k = 1,width do
        turtle.digUp()
        if u < width then
          turtle.forward()
          u = u+1
        end
      end
      if length == j then
        print("Ready for next row")
      elseif isOdd(j) then
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
      else
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
      end
    end
    if i == height then
      print("Thank you for choosing...\n RestEasy:\n SecureSolutions")
      repeat
        turtle.down()
      until turtle.detectDown() == true
      for b = 1,3 do
       turtle.up()
      end
    elseif isOdd(length) then
      turtle.turnRight()
      local l = 1
      while l < length do
        turtle.forward()
        l = l + 1
      end
      turtle.turnRight()
      local l=1
      while l < width do
        turtle.forward()
        l = l+1
      end
      turtle.turnRight()
      turtle.turnRight()
      turtle.up()
    else
      turtle.turnLeft()
      local l = 1
      while l < length do
        turtle.forward()
        l = l+1
      end
      turtle.turnLeft()
      turtle.up()
    end
  end
end

--Is the number odd?
function isOdd(n)
  if n%2 == 1 then
    return true
  else
    return false
  end
end

ceiling()