local termWidth, termHeight = term.getSize()
local selectedItem = 1
local running = true


function Login()

end

function Register()

end

function Exit()
	running = false
end

mainMenu = {
[1] = { text = “Login”, handler = Login},
[2] = { text = “Register”, handler = Register},
[3] = { text = “Exit”, handler = Exit}

}

function printMenu( menu )
	for i=1,#menu
		if i == selectedItem then
			print(“>> “..menu[i].text..” <<“)
		else
			print(“   “..menu[i].text..”   “)
	end
end

function onKeyPressed( key, menu)
	if key == keys.enter then
		onItemSelected(menu)
	elseif key == keys.up then
		if selectedItem > 1
			selectedItem = selectedItem - 1
		end
	else if key == keys.down then
		if selectedItem < #menu then
			selectedItem = selectedItem + 1
	end
end
end

function onItemSelected( menu)
	menu[selectedItem].handler()
end

function main()
	while running do
		term.clear()
		term.setCursorPos(1,1)
		printMenu(mainMenu)

		event, key = os.pullEvent(“key”)
		onKeyPressed(key,mainMenu)
	end
end

main()