welc

l,h = term.getSize()

exit = false
wlc = "Welcome to NekoTiki OS"
wa = wlc:len()
wap = wa * (-1)

function welcome()
  term.setTextColor(colors.purple)
  for i=1,wlc:len()*2-6 do
    term.clear()
    term.setCursorPos(wap,3)
    wap = wap + 1
    write(wlc)
    sleep(0.1)
  end
  sleep(4)
end

function cmds()
  term.clear()
  term.setCursorPos(1,1)
  term.setTextColor(colors.purple)
  print("Nekotiki OS.")
  term.setTextColor(colors.blue)
  write(">>")
  term.setTextColor(colors.yellow)
  cmd = read()
end

welcome()
while exit==false do
  cmds()
  if cmd == "pass" then
    term.setTextColor(colors.red)
    print("PassWord :")
    term.setTextColor(colors.blue)
    write(" >>")
    term.setTextColor(colors.yellow)
    pass = read("*")
    if pass == "good" then
      term.setTextColor(colors.green)
      print("Pass Correct. Good Bye !!")
      sleep(2)
      term.setCursorPos(1,1)
      term.clear()
      exit=true
    else
      term.setTextColor(colors.red)
      print("Pass Incorrect.")
      sleep(2)
    end
  else
    print("Commande Inconnue.")
    sleep(2)
  end
end