startup

modem = peripheral.wrap("bottom")
while 1 do
  term.clear()
  term.setCursorPos(1,1)
  print("Welcome to VirtualDXS's Mars Base!")
  print("This is a door terminal. Would you like to:")
  print("  O)pen the main door")
  print("  C)lose the main door")
  print("  ")
  while 1 do
    local event, keystroke = os.pullEvent("char")
    if keystroke == "o" then
      modem.transmit(1337,1337,"open")
      print("Opened main door!")
      sleep(3)
      break
    elseif keystroke == "c" then
      modem.transmit("Closed main door!")
      sleep(3)
      break
    end
  end
end