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Add better line breaks based on YASSs algorithm

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This commit is contained in:
Flamefire committed 2014-03-23 13:00:57 +01:00
1 parent 26f0c82db1
commit ef22f8557f
1 file changed
+33 -5
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VocaluxeLib/Songs/CSongWriter.cs
+33 -5
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@@ -122,6 +122,35 @@ namespace VocaluxeLib.Songs
_Tw.WriteLine(addLine);
}
/// <summary>
/// Gets a good beat for a line break that is &gt;=firstPossibleBeat and &lt;firstNoteBeat
/// Based on algorithm used by YASS: http://www.yass-along.com/errors.html
/// </summary>
/// <param name="firstPossibleBeat">First beat that is possible for a line break (equal (just after) previous line note end)</param>
/// <param name="firstNoteBeat">First note beat on current line</param>
/// <returns>A good beat for the line break</returns>
private int _GetBreakBeat(int firstPossibleBeat, int firstNoteBeat)
{
int breakBeat;
int diff = firstNoteBeat - firstPossibleBeat;
float timeDiff = CBase.Game.GetTimeFromBeats(diff, _Song.BPM);
if (timeDiff > 4f)
breakBeat = firstPossibleBeat + (int)CBase.Game.GetBeatFromTime(2f, _Song.BPM, 0f);
else if (timeDiff > 2f)
breakBeat = firstPossibleBeat + (int)CBase.Game.GetBeatFromTime(1f, _Song.BPM, 0f);
else if (diff < 2)
breakBeat = firstPossibleBeat;
else if (diff < 9)
breakBeat = firstNoteBeat - 2;
else if (diff < 13)
breakBeat = firstNoteBeat - 3;
else if (diff < 17)
breakBeat = firstNoteBeat - 4;
else
breakBeat = firstPossibleBeat + 12;
return breakBeat;
}
private void _WriteNotes()
{
for (int i = 0; i < _Song.Notes.VoiceCount; i++)
@@ -129,13 +158,13 @@ namespace VocaluxeLib.Songs
CVoice voice = _Song.Notes.GetVoice(i);
if (_Song.Notes.VoiceCount > 1)
_Tw.WriteLine("P" + Math.Pow(2, i));
bool firstLine = true;
int currentBeat = 0;
CSongLine lastLine = null;
foreach (CSongLine line in voice.Lines)
{
if (!firstLine)
if (lastLine != null)
{
string lineTxt = "- " + (line.StartBeat - currentBeat);
string lineTxt = "- " + (_GetBreakBeat(lastLine.EndBeat + 1, line.FirstNoteBeat) - currentBeat);
if (_Song.Relative)
{
lineTxt += " " + (line.FirstNoteBeat - currentBeat);
@@ -143,8 +172,6 @@ namespace VocaluxeLib.Songs
}
_Tw.WriteLine(lineTxt);
}
else
firstLine = false;
foreach (CSongNote note in line.Notes)
{
string tag;
@@ -164,6 +191,7 @@ namespace VocaluxeLib.Songs
}
_Tw.WriteLine(tag + " " + (note.StartBeat - currentBeat) + " " + note.Duration + " " + note.Tone + " " + note.Text);
}
lastLine = line;
}
}
_Tw.WriteLine("E");