/// <summary>
/// Load the sm file specified by the provided file path.
/// </summary>
public override async Task <Song> Load()
{
// Load the file as an MSDFile.
var msdFile = new MSDFile();
var result = await msdFile.Load(FilePath);
if (!result)
{
Logger.Error("Failed to load MSD File.");
return(null);
}
var tempos = new Dictionary <double, double>();
var stops = new Dictionary <double, double>();
var song = new Song();
song.SourceType = FileFormatType.SM;
var propertyParsers = new Dictionary <string, PropertyParser>()
{
[SMCommon.TagTitle] = new PropertyToSongPropertyParser(SMCommon.TagTitle, nameof(Song.Title), song),
[SMCommon.TagSubtitle] = new PropertyToSongPropertyParser(SMCommon.TagSubtitle, nameof(Song.SubTitle), song),
[SMCommon.TagArtist] = new PropertyToSongPropertyParser(SMCommon.TagArtist, nameof(Song.Artist), song),
[SMCommon.TagTitleTranslit] = new PropertyToSongPropertyParser(SMCommon.TagTitleTranslit, nameof(Song.TitleTransliteration), song),
[SMCommon.TagSubtitleTranslit] = new PropertyToSongPropertyParser(SMCommon.TagSubtitleTranslit, nameof(Song.SubTitleTransliteration), song),
[SMCommon.TagArtistTranslit] = new PropertyToSongPropertyParser(SMCommon.TagArtistTranslit, nameof(Song.ArtistTransliteration), song),
[SMCommon.TagGenre] = new PropertyToSongPropertyParser(SMCommon.TagGenre, nameof(Song.Genre), song),
[SMCommon.TagCredit] = new PropertyToSourceExtrasParser <string>(SMCommon.TagCredit, song.Extras),
[SMCommon.TagBanner] = new PropertyToSongPropertyParser(SMCommon.TagBanner, nameof(Song.SongSelectImage), song),
[SMCommon.TagBackground] = new PropertyToSourceExtrasParser <string>(SMCommon.TagBackground, song.Extras),
[SMCommon.TagLyricsPath] = new PropertyToSourceExtrasParser <string>(SMCommon.TagLyricsPath, song.Extras),
[SMCommon.TagCDTitle] = new PropertyToSourceExtrasParser <string>(SMCommon.TagCDTitle, song.Extras),
[SMCommon.TagMusic] = new PropertyToSourceExtrasParser <string>(SMCommon.TagMusic, song.Extras),
[SMCommon.TagOffset] = new PropertyToSourceExtrasParser <double>(SMCommon.TagOffset, song.Extras),
[SMCommon.TagBPMs] = new CSVListAtTimePropertyParser <double>(SMCommon.TagBPMs, tempos, song.Extras, SMCommon.TagFumenRawBpmsStr),
[SMCommon.TagStops] = new CSVListAtTimePropertyParser <double>(SMCommon.TagStops, stops, song.Extras, SMCommon.TagFumenRawStopsStr),
[SMCommon.TagFreezes] = new CSVListAtTimePropertyParser <double>(SMCommon.TagFreezes, stops),
[SMCommon.TagDelays] = new PropertyToSourceExtrasParser <string>(SMCommon.TagDelays, song.Extras),
// Removed, see https://github.com/stepmania/stepmania/issues/9
[SMCommon.TagTimeSignatures] = new PropertyToSourceExtrasParser <string>(SMCommon.TagTimeSignatures, song.Extras),
[SMCommon.TagTickCounts] = new PropertyToSourceExtrasParser <string>(SMCommon.TagTickCounts, song.Extras),
[SMCommon.TagInstrumentTrack] = new PropertyToSourceExtrasParser <string>(SMCommon.TagInstrumentTrack, song.Extras),
[SMCommon.TagSampleStart] = new PropertyToSongPropertyParser(SMCommon.TagSampleStart, nameof(Song.PreviewSampleStart), song),
[SMCommon.TagSampleLength] = new PropertyToSongPropertyParser(SMCommon.TagSampleLength, nameof(Song.PreviewSampleLength), song),
[SMCommon.TagDisplayBPM] = new ListPropertyToSourceExtrasParser <string>(SMCommon.TagDisplayBPM, song.Extras),
[SMCommon.TagSelectable] = new PropertyToSourceExtrasParser <string>(SMCommon.TagSelectable, song.Extras),
[SMCommon.TagAnimations] = new PropertyToSourceExtrasParser <string>(SMCommon.TagAnimations, song.Extras),
[SMCommon.TagBGChanges] = new PropertyToSourceExtrasParser <string>(SMCommon.TagBGChanges, song.Extras),
[SMCommon.TagBGChanges1] = new PropertyToSourceExtrasParser <string>(SMCommon.TagBGChanges1, song.Extras),
[SMCommon.TagBGChanges2] = new PropertyToSourceExtrasParser <string>(SMCommon.TagBGChanges2, song.Extras),
[SMCommon.TagFGChanges] = new PropertyToSourceExtrasParser <string>(SMCommon.TagFGChanges, song.Extras),
// TODO: Parse Keysounds properly.
[SMCommon.TagKeySounds] = new PropertyToSourceExtrasParser <string>(SMCommon.TagKeySounds, song.Extras),
[SMCommon.TagAttacks] = new ListPropertyToSourceExtrasParser <string>(SMCommon.TagAttacks, song.Extras),
[SMCommon.TagNotes] = new SongNotesPropertyParser(SMCommon.TagNotes, song),
[SMCommon.TagNotes2] = new SongNotesPropertyParser(SMCommon.TagNotes2, song),
[SMCommon.TagLastBeatHint] = new PropertyToSourceExtrasParser <string>(SMCommon.TagLastBeatHint, song.Extras),
};
foreach (var kvp in propertyParsers)
{
kvp.Value.SetLogger(Logger);
}
// Parse all Values from the MSDFile.
foreach (var value in msdFile.Values)
{
if (propertyParsers.TryGetValue(value.Params[0]?.ToUpper() ?? "", out var propertyParser))
{
propertyParser.Parse(value);
}
}
// Insert stop and tempo change events.
foreach (var chart in song.Charts)
{
SMCommon.AddStops(stops, chart);
SMCommon.AddTempos(tempos, chart);
}
// Sort events.
foreach (var chart in song.Charts)
{
chart.Layers[0].Events.Sort(new SMCommon.SMEventComparer());
}
song.GenreTransliteration = song.Genre;
var chartOffset = 0.0;
if (song.Extras.TryGetSourceExtra(SMCommon.TagOffset, out object offsetObj))
{
chartOffset = (double)offsetObj;
}
var chartMusicFile = "";
if (song.Extras.TryGetSourceExtra(SMCommon.TagMusic, out object chartMusicFileObj))
{
chartMusicFile = (string)chartMusicFileObj;
}
var chartAuthor = "";
if (song.Extras.TryGetSourceExtra(SMCommon.TagCredit, out object chartAuthorObj))
{
chartAuthor = (string)chartAuthorObj;
}
var chartDisplayTempo = SMCommon.GetDisplayBPMStringFromSourceExtrasList(song.Extras, tempos);
foreach (var chart in song.Charts)
{
chart.MusicFile = chartMusicFile;
chart.ChartOffsetFromMusic = chartOffset;
chart.Tempo = chartDisplayTempo;
chart.Artist = song.Artist;
chart.ArtistTransliteration = song.ArtistTransliteration;
chart.Genre = song.Genre;
chart.GenreTransliteration = song.GenreTransliteration;
chart.Author = chartAuthor;
SMCommon.SetEventTimeMicros(chart);
}
return(song);
}
private void FinalizeChartAndAddToSong(
Chart chart,
Dictionary <double, double> chartTempos,
Dictionary <double, double> chartStops,
Song song,
Dictionary <double, double> songTempos,
Dictionary <double, double> songStops)
{
// Do not add this Chart if we failed to parse the type.
if (string.IsNullOrEmpty(chart.Type))
{
return;
}
var useChartTimingData = false;
if (chart.Extras.TryGetSourceExtra(SMCommon.TagFumenChartUsesOwnTimingData, out object useTimingDataObject))
{
if (useTimingDataObject is bool b)
{
useChartTimingData = b;
}
}
// Insert stop and tempo change events.
SMCommon.AddStops(useChartTimingData ? chartStops : songStops, chart);
SMCommon.AddTempos(useChartTimingData ? chartTempos : songTempos, chart);
// Sort events.
chart.Layers[0].Events.Sort(new SMCommon.SMEventComparer());
// Copy Song information over missing Chart information.
if (string.IsNullOrEmpty(chart.MusicFile))
{
var chartMusicFile = "";
if (song.Extras.TryGetSourceExtra(SMCommon.TagMusic, out object chartMusicFileObj))
{
chartMusicFile = (string)chartMusicFileObj;
}
if (!string.IsNullOrEmpty(chartMusicFile))
{
chart.MusicFile = chartMusicFile;
}
}
if (string.IsNullOrEmpty(chart.Author))
{
var chartAuthor = "";
if (song.Extras.TryGetSourceExtra(SMCommon.TagCredit, out object chartAuthorObj))
{
chartAuthor = (string)chartAuthorObj;
}
if (!string.IsNullOrEmpty(chartAuthor))
{
chart.Author = chartAuthor;
}
}
if (string.IsNullOrEmpty(chart.Artist) && !string.IsNullOrEmpty(song.Artist))
{
chart.Artist = song.Artist;
}
if (string.IsNullOrEmpty(chart.ArtistTransliteration) && !string.IsNullOrEmpty(song.ArtistTransliteration))
{
chart.ArtistTransliteration = song.ArtistTransliteration;
}
if (string.IsNullOrEmpty(chart.Genre) && !string.IsNullOrEmpty(song.Genre))
{
chart.Genre = song.Genre;
}
if (string.IsNullOrEmpty(chart.GenreTransliteration) && !string.IsNullOrEmpty(song.GenreTransliteration))
{
chart.GenreTransliteration = song.GenreTransliteration;
}
if (!chart.Extras.TryGetSourceExtra(SMCommon.TagOffset, out object _) &&
song.Extras.TryGetSourceExtra(SMCommon.TagOffset, out object offsetObj))
{
chart.ChartOffsetFromMusic = (double)offsetObj;
}
if (!chart.Extras.TryGetSourceExtra(SMCommon.TagDisplayBPM, out object _))
{
chart.Tempo = SMCommon.GetDisplayBPMStringFromSourceExtrasList(
song.Extras,
useChartTimingData ? chartTempos : songTempos);
}
SMCommon.SetEventTimeMicros(chart);
// Add the Chart.
song.Charts.Add(chart);
}
