GUI

pos = 1
gui = 1
e = 0

function Action()

if gui == 1 and pos == 2 then



end


end

function Event()
event, key = os.pullEvent("key")

if gui == 1 then e = 3 end

  if key == 208 and pos < e then

  pos = pos + 1

  end

  if key == 200 and pos > 1 then

  pos = pos - 1

  end

  if key == 28 then

  Action()

  end


if gui == 1 then mainMenu() end

end


function mainMenu()

  term.clear()
  term.setCursorPos(1, 1)
  print("Hauptmenu")
  term.setCursorPos(1,3)

  if pos == 1 then

    print(" >Programme")
    print(" Systemsteuerung")
    print(" Konsole")

  end

  if pos == 2 then

    print(" Programme")
    print(" >Systemsteuerung")
    print(" Konsole")

  end

  if pos == 3 then

    print(" Programme")
    print(" Systemsteuerung")
    print(" >Konsole")

  end

end

mainMenu()
while true do
Event()
end