protected void ApplyHaltEffect(Song s, Dictionary<Pattern, RowFxData[,]> patternFxData)
{
// Find the first Cxx effect and truncate the song.
for (int p = 0; p < s.Length; p++)
{
for (int c = 0; c < s.Channels.Length; c++)
{
var pattern = s.Channels[c].PatternInstances[p];
var patternLength = s.GetPatternLength(p);
if (patternFxData.TryGetValue(pattern, out var fxData))
{
for (int i = 0; i < fxData.GetLength(0) && i < patternLength; i++)
{
for (int j = 0; j < fxData.GetLength(1); j++)
{
var fx = fxData[i, j];
if (fx.fx == Effect_Halt)
{
if (s.PatternHasCustomSettings(p))
s.GetPatternCustomSettings(p).patternLength = i + 1;
else
s.SetPatternCustomSettings(p, i + 1, s.BeatLength);
s.SetLength(p + 1);
s.SetLoopPoint(-1);
return;
}
}
}
}
}
}
}
private void ExtendSongForLooping(Song song, int loopCount)
{
// For looping, we simply extend the song by copying pattern instances.
if (loopCount > 1 && song.LoopPoint >= 0 && song.LoopPoint < song.Length)
{
var originalLength = song.Length;
var loopSectionLength = originalLength - song.LoopPoint;
song.SetLength(Math.Min(Song.MaxLength, originalLength + loopSectionLength * (loopCount - 1)));
var srcPatIdx = song.LoopPoint;
for (var i = originalLength; i < song.Length; i++)
{
foreach (var c in song.Channels)
{
c.PatternInstances[i] = c.PatternInstances[srcPatIdx];
}
if (song.PatternHasCustomSettings(srcPatIdx))
{
var customSettings = song.GetPatternCustomSettings(srcPatIdx);
song.SetPatternCustomSettings(i, customSettings.patternLength, customSettings.beatLength, customSettings.groove, customSettings.groovePaddingMode);
}
if (++srcPatIdx >= originalLength)
{
srcPatIdx = song.LoopPoint;
}
}
}
}