public void RemoveTrack(BGMLTrack track)
{
int id = track.Index;
Tracks.Remove(track);
// Resort playlists
foreach (var playlist in Playlists)
{
if (playlist.TrackIndexes.Contains(id))
{
playlist.TrackIndexes.Remove(id);
}
for (int i = 0; i < playlist.TrackIndexes.Count; i++)
{
if (playlist.TrackIndexes[i] >= id)
{
playlist.TrackIndexes[i]--;
}
}
}
// And Tracks
for (int i = 0; i < Tracks.Count; i++)
{
Tracks[i].Index = i;
}
}
public static BGML ReadFromFile(string path)
{
using (var fs = new FileStream(path, FileMode.Open))
using (var br = new BinaryStream(fs))
{
var magic = br.ReadString(4);
if (magic != MAGIC)
{
throw new Exception($"Invalid file magic (Need {MAGIC}, got {magic})");
}
br.BaseStream.Position += 4;
uint fileSize = br.ReadUInt32();
if (fileSize != br.Length)
{
throw new Exception($"Invalid file size in file (File says {fileSize}b, but is actually {br.Length}b)");
}
br.Position += 4;
BGML bgml = new BGML();
int trackCount = br.ReadInt32();
bgml.Tracks = new List <BGMLTrack>(trackCount);
int trackTreeOffset = br.ReadInt32();
int playlistCount = br.ReadInt32();
bgml.Playlists = new List <BGML_Playlist>(playlistCount);
int playlistTreeOffset = br.ReadInt32();
// Read Tracks
for (int i = 0; i < trackCount; i++)
{
BGMLTrack track = new BGMLTrack();
br.Position = trackTreeOffset + (i * 0x30);
int fileNameOffset = br.ReadInt32();
bgml.Format = (LibraryTrackFormat)br.ReadInt32();
int idStringOffset = br.ReadInt32();
br.Position += 4;
// Don't make use of it yet
int trackHeaderOffset = br.ReadInt32();
if (!bgml.HasExtraTrackMetadata)
{
bgml.HasExtraTrackMetadata = trackHeaderOffset != 0;
}
track.Format = bgml.Format;
int trackNameOffset = br.ReadInt32();
int artistNameOffset = br.ReadInt32();
int genreNameoffset = br.ReadInt32();
if (fileNameOffset != 0)
{
br.Position = fileNameOffset;
track.Label = br.ReadString(StringCoding.ZeroTerminated);
}
if (idStringOffset != 0)
{
br.Position = idStringOffset;
track.FileName = br.ReadString(StringCoding.ZeroTerminated);
}
if (trackNameOffset != 0)
{
br.Position = trackNameOffset;
track.TrackName = br.ReadString(StringCoding.ZeroTerminated);
}
if (artistNameOffset != 0)
{
br.Position = artistNameOffset;
track.Artist = br.ReadString(StringCoding.ZeroTerminated);
}
if (genreNameoffset != 0)
{
br.Position = genreNameoffset;
track.Genre = br.ReadString(StringCoding.ZeroTerminated);
}
bgml.Tracks.Add(track);
track.Index = i;
}
// Read Playlists
for (int i = 0; i < playlistCount; i++)
{
BGML_Playlist playlist = new BGML_Playlist();
br.Position = playlistTreeOffset + (i * 0x04);
br.Position = br.ReadInt32();
int nameOffset = br.ReadInt32();
br.Position += 12;
int pTrackCount = br.ReadInt32();
List <int> trackIndexes = new List <int>();
for (int j = 0; j < pTrackCount; j++)
{
trackIndexes.Add(br.ReadInt32());
}
playlist.TrackIndexes = trackIndexes;
br.Position = nameOffset;
playlist.Name = br.ReadString(StringCoding.ZeroTerminated, Encoding.UTF8);
bgml.Playlists.Add(playlist);
}
return(bgml);
}
}
public void RemoveTrack(BGMLTrack track) => TrackIndexes.Remove(track.Index);
public void AddTrack(BGMLTrack track) => TrackIndexes.Add(track.Index);