protected override void OnPreUpdate()
{
if (_keyboard.IsKeyDown(KeyCode.Up))
{
_volume = Math.Min(1f, _volume + 0.001f);
_soundEffects.SetVolume(_volume);
}
if (_keyboard.IsKeyDown(KeyCode.Down))
{
_volume = Math.Max(0f, _volume - 0.001f);
_soundEffects.SetVolume(_volume);
}
}