public static void Show()
{
while (true)
{
GuideMenu selectedMenu = null;
if (!TryGetSelectedMenu(out selectedMenu))
{
WaitAndClearScreen();
continue;
}
Console.Clear();
Console.WriteLine(selectedMenu.Tips);
Console.WriteLine("-------------------------------------------------------------");
while (!selectedMenu.Do(Console.ReadLine()))
{
}
WaitAndClearScreen();
}
}
private static bool TryGetSelectedMenu(out GuideMenu selectedMenu)
{
var menus = new GuideMenu[] { new InputDataFromFileMenu(), new InputDataFromConsoleMenu(), new ExitMenu() };
var contents = ToContents(menus);
Console.WriteLine("--------------------- Guide To Galaxy ----------------------");
Console.WriteLine(contents);
Console.WriteLine("-------------------------------------------------------------");
var input = Console.ReadLine();
int id;
selectedMenu = int.TryParse(input, out id) && id <= menus.Count() ? menus[id - 1] : null;
if (selectedMenu == null)
{
Console.WriteLine("Please input valid menu number.");
return(false);
}
else
{
return(true);
}
}