static bool Menu()
{
if (_files == null)
{
_files = Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory).Where(s => Path.GetExtension(s) == ".mid").Select(Path.GetFileName).ToArray();
}
Clear();
if (!_useAutoPlay || _ptr == -1)
{
foreach (ValueTuple <string, int> fs in _files.Select((s, i) => new ValueTuple <string, int>(s, i)))
{
WriteLine($"{fs.Item2})\t{fs.Item1}");
}
WriteLine();
Write("再生するものを選んでください(-1で終了) >");
int a;
while (!int.TryParse(ReadLine(), out a) || a >= _files.Length || a < 0)
{
if (a == -1)
{
return(false);
}
Write("ちゃんと選べ。 >");
}
_ptr = a;
}
if (_ptr >= _files.Length)
{
_ptr = 0;
}
try
{
if (_files.Length > 0)
{
_player.Play(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, _files[_ptr]), _useAutoPlay ? 2 : 2, 8000);
}
}
catch (Exception ex)
{
Debug.WriteLine($"ERROR!!! {ex}");
}
if (_useAutoPlay)
{
_ptr++;
}
return(true);
}
