fuelSelection

while true do
  function close()
    redstone.setOutput("right",false)
    redstone.setOutput("top",false)
    redstone.setOutput("back",false)
  end
  term.clear()
  term.setCursorPos(1,1)
  print("== Fuel Delivery System ==")
  print("Type a specified number to select fuel type")
  print("(1) - Gaseous Fuel")
  print("(2) - Dense Fuel")
  print("(3) - Light Fuel")
  print("(off) - Close all valves")
  print("")
  option = read()
  if option == "1" then
    close()
    redstone.setOutput("right",true)
    texutils.slowPrint("Selected (1), Gaseous Fuel")
    sleep(2)
  elseif option == "2" then
    close()
    redstone.setOutput("top",true)
    texutils.slowPrint("Selected (2), Dense Fuel")
    sleep(2)
  elseif option == "3" then
    close()
    redstone.setOutput("back",true)
    texutils.slowPrint("Selected (3), Light Fuel")
    sleep(2)
  elseif option == "off" then
    close()
    texutils.slowPrint("Selected (off), closed all valves")
    sleep(2)
  else
  end
end