public void Export(Stream stream)
{
var book = ScoreBook;
SusArgs args = CustomArgs;
var notes = book.Score.Notes;
using (var writer = new StreamWriter(stream))
{
writer.WriteLine("This file was generated by Ched {0}.", System.Reflection.Assembly.GetEntryAssembly().GetName().Version.ToString());
writer.WriteLine("#TITLE \"{0}\"", book.Title);
writer.WriteLine("#ARTIST \"{0}\"", book.ArtistName);
writer.WriteLine("#DESIGNER \"{0}\"", book.NotesDesignerName);
writer.WriteLine("#DIFFICULTY {0}", (int)args.PlayDifficulty + (string.IsNullOrEmpty(args.ExtendedDifficulty) ? "" : ":" + args.ExtendedDifficulty));
writer.WriteLine("#PLAYLEVEL {0}", args.PlayLevel);
writer.WriteLine("#SONGID \"{0}\"", args.SongId);
writer.WriteLine("#WAVE \"{0}\"", args.SoundFileName);
writer.WriteLine("#WAVEOFFSET {0}", args.SoundOffset);
writer.WriteLine("#JACKET \"{0}\"", args.JacketFilePath);
writer.WriteLine();
if (!string.IsNullOrEmpty(args.AdditionalData))
{
writer.WriteLine(args.AdditionalData);
writer.WriteLine();
}
writer.WriteLine("#REQUEST \"ticks_per_beat {0}\"", book.Score.TicksPerBeat);
writer.WriteLine();
var timeSignatures = BarIndexCalculator.TimeSignatures.Select(p => new SusDataLine(p.StartBarIndex, barIndex => string.Format("#{0:000}02: {1}", barIndex, 4f * p.TimeSignature.Numerator / p.TimeSignature.Denominator), p.StartBarIndex == 0));
WriteLinesWithOffset(writer, timeSignatures);
writer.WriteLine();
var bpmlist = book.Score.Events.BpmChangeEvents
.GroupBy(p => p.Bpm)
.SelectMany((p, i) => p.Select(q => new { Index = i, Value = q, BarPosition = BarIndexCalculator.GetBarPositionFromTick(q.Tick) }))
.ToList();
if (bpmlist.Count >= 36 * 36)
{
throw new ArgumentException("BPM定義数が上限を超えました。");
}
var bpmIdentifiers = EnumerateIdentifiers(2, NumChars.Concat(AlphaChars)).Skip(1).Take(bpmlist.Count).ToList();
foreach (var item in bpmlist.GroupBy(p => p.Index).Select(p => p.First()))
{
writer.WriteLine("#BPM{0}: {1}", bpmIdentifiers[item.Index], item.Value.Bpm);
}
// 小節オフセット追加用に初期BPM定義だけ1行に分離
var bpmChanges = bpmlist.GroupBy(p => p.Value.Tick == 0).SelectMany(p => p.GroupBy(q => q.BarPosition.BarIndex).Select(eventInBar =>
{
var sig = BarIndexCalculator.GetTimeSignatureFromBarIndex(eventInBar.Key);
int barLength = StandardBarTick * sig.Numerator / sig.Denominator;
var items = eventInBar.Select(q => (q.BarPosition.TickOffset, bpmIdentifiers[q.Index]));
return(new SusDataLine(eventInBar.Key, barIndex => string.Format("#{0:000}08: {1}", barIndex, GenerateLineData(barLength, items)), p.Key));
}));
WriteLinesWithOffset(writer, bpmChanges);
writer.WriteLine();
var speeds = book.Score.Events.HighSpeedChangeEvents.Select(p =>
{
var barPos = BarIndexCalculator.GetBarPositionFromTick(p.Tick);
return(string.Format("{0}'{1}:{2}", barPos.BarIndex + (p.Tick == 0 ? 0 : BarIndexOffset), barPos.TickOffset, p.SpeedRatio));
});
writer.WriteLine("#TIL00: \"{0}\"", string.Join(", ", speeds));
writer.WriteLine("#HISPEED 00");
writer.WriteLine("#MEASUREHS 00");
writer.WriteLine();
var shortNotes = notes.Taps.Cast <TappableBase>().Select(p => new { Type = '1', Note = p })
.Concat(notes.ExTaps.Cast <TappableBase>().Select(p => new { Type = '2', Note = p }))
.Concat(notes.Flicks.Cast <TappableBase>().Select(p => new { Type = '3', Note = p }))
.Concat(notes.Damages.Cast <TappableBase>().Select(p => new { Type = '4', Note = p }))
.Select(p => (p.Note.Tick, p.Note.LaneIndex, p.Type + ToLaneWidthString(p.Note.Width)));
WriteLinesWithOffset(writer, GetShortNoteLines("1", shortNotes));
writer.WriteLine();
var airs = notes.Airs.Select(p =>
{
string type = "";
switch (p.HorizontalDirection)
{
case HorizontalAirDirection.Center:
type = p.VerticalDirection == VerticalAirDirection.Up ? "1" : "2";
break;
case HorizontalAirDirection.Left:
type = p.VerticalDirection == VerticalAirDirection.Up ? "3" : "5";
break;
case HorizontalAirDirection.Right:
type = p.VerticalDirection == VerticalAirDirection.Up ? "4" : "6";
break;
}
return(p.Tick, p.LaneIndex, type + ToLaneWidthString(p.Width));
});
WriteLinesWithOffset(writer, GetShortNoteLines("5", airs));
writer.WriteLine();
var identifier = new IdentifierAllocationManager();
var holds = book.Score.Notes.Holds
.OrderBy(p => p.StartTick)
.Select(p => new
{
Identifier = identifier.Allocate(p.StartTick, p.Duration),
StartTick = p.StartTick,
EndTick = p.StartTick + p.Duration,
Width = p.Width,
LaneIndex = p.LaneIndex
})
.SelectMany(hold =>
{
var items = new[]
{
(hold.StartTick, hold.LaneIndex, "1" + ToLaneWidthString(hold.Width)),
(hold.EndTick, hold.LaneIndex, "2" + ToLaneWidthString(hold.Width))
};
return(GetLongNoteLines("2", hold.Identifier.ToString(), items));
});
public SusExporter(ScoreBook book, SusArgs susArgs)
{
ScoreBook = book;
CustomArgs = susArgs;
BarIndexCalculator = new BarIndexCalculator(book.Score.TicksPerBeat, book.Score.Events.TimeSignatureChangeEvents);
}