public static void LoadPreview(CSong song, float start = -1f)
{
if (song == null)
{
throw new ArgumentNullException("song");
}
if (!IsPlayingPreview)
{
Pause();
CSound.SetGlobalVolume(CConfig.PreviewMusicVolume);
}
bool songChanged = _CurPlayer.SongID != song.ID;
_PreviewPlayer.Load(song);
//Change song position only if song is changed or near to end
if (songChanged || _CurPlayer.Position + 30 < _CurPlayer.Length)
{
_PreviewStartHelperTask = new Task(() =>
{
float length = _PreviewPlayer.Length;
if (length < 1)
{
length = 30; // If length is unknow or invalid assume a length of 30s
}
if (start < 0)
{
start = (song.Preview.Source == EDataSource.None) ? length / 4f : song.Preview.StartTime;
}
if (start > length - 5f)
{
start = Math.Max(0f, Math.Min(length / 4f, length - 5f));
}
if (start >= 0.5f)
{
start -= 0.5f;
}
_PreviewPlayer.Position = start;
Play();
});
_CurPlayer = _PreviewPlayer;
}
else
{
_PreviewStartHelperTask.Dispose();
_PreviewStartHelperTask = null;
_PreviewPlayer.Position = _CurPlayer.Position;
_CurPlayer = _PreviewPlayer;
Play();
}
}
public static void StopPreview()
{
if (!IsPlayingPreview)
{
return;
}
Stop();
_CurPlayer = _BGPlayer;
if (_MusicSource != EBackgroundMusicSource.TR_CONFIG_NO_OWN_MUSIC)
{
_CurPlayer.Load(CSongs.GetSong(_PreviewPlayer.SongID));
_CurPlayer.Position = _PreviewPlayer.Position;
}
CSound.SetGlobalVolume(CConfig.BackgroundMusicVolume);
}
/// <summary>
/// Initializes the background music with values from config
/// Has to be called before any other method is used
/// </summary>
public static void Init()
{
if (_Initialized)
{
return;
}
List <string> soundFiles = CHelper.ListSoundFiles(CSettings.FolderNameBackgroundMusic, true, true);
foreach (string path in soundFiles)
{
_BGMusicFiles.Add(new CPlaylistElement(path));
}
_CurPlayer = _BGPlayer;
//Set a default to have a consistent starting point, use SetMusicSource afterwards
_MusicSource = EBackgroundMusicSource.TR_CONFIG_NO_OWN_MUSIC;
_AddBackgroundMusic();
SetMusicSource(CConfig.Config.Sound.BackgroundMusicSource);
_Initialized = true;
}