os

dropdown=0
login=0
term.clear()
function login()
  term.setBackgroundColor(colors.black)
  term.clear()
  term.setBackgroundColor(colors.orange)
  term.setCursorPos(10, 6)
  term.write("       ")
  term.setBackgroundColor(colors.cyan)
  term.setCursorPos(10, 7)
  term.write(" 1 2 3 ")
  term.setCursorPos(10, 8)
  term.write(" 4 5 6 ")
  term.setCursorPos(10, 9)
  term.write(" 7 8 9 ")
  term.setCursorPos(10, 10)
  term.setBackgroundColor(colors.green)
  term.write("    ")
  term.setCursorPos(14, 10)
  term.setBackgroundColor(colors.red)
  term.write("   ")
end
function background()
  term.setBackgroundColor(colors.cyan)
  term.clear()
end
function t_bar()
  term.setCursorPos(1, 1)
  term.setBackgroundColor(8)
  term.setTextColor(1)
  term.clearLine()
  term.setCursorPos(3, 1)
  print("[OS]")
end
function dropDown()
  term.setBackgroundColor(colors.gray)
  term.setCursorPos(1, 2)
  print("            ")
  term.setCursorPos(1, 3)
  print("  Shutdown  ")
  term.setCursorPos(1, 4)
  print("  Restart   ")
  term.setCursorPos(1, 5)
  print("  Logout    ")
  term.setCursorPos(1, 6)
  print("            ")
end
function menu()
  term.setCursorPos(1, 4)
  term.setBackgroundColor(colors.black)
  print("          ")
  term.setCursorPos(1, 14)
  print("          ")
  for i=1, 9 do
    term.setCursorPos(1, i+4)
    print(" ")
    term.setCursorPos(10, i+4)
    print(" ")
  end
  --options
  term.setBackgroundColor(colors.cyan)
  term.setCursorPos(3, 6)
  print("Devil")
  term.setCursorPos(3, 7)
  print("Teddy")
end
login()
while true do
  --update
  local event, button, X, Y = os.pullEventRaw()
  if button==1 and X==51 and Y==1 then error() end
  if login==0 then

  end
  if login==1 then
    if Y==1 and X>=3 and X<=6 and button==1 then
      if dropdown==0 then dropdown=1
      else dropdown=0 end
    end
    if dropdown==1 then
      if Y==3 and X>=3 and X<=12 and button==1 then os.shutdown() end
      if Y==4 and X>=3 and X<=12 and button==1 then os.reboot() end
      if Y==5 and X>=3 and X<=12 and button==1 then
        term.setBackgroundColor(colors.black)
        term.clear()
        term.setCursorPos(1, 1)
        error()
      end
    end

    --draw
    background()
    t_bar()
    menu()
    if dropdown==1 then dropDown() end
  end
end