public SongPlayer(PatternCollection patterns, int bpm)
{
_bpm = bpm;
Instrument nullInstrument = CreateNullInstrument(patterns);
for (int i = 0; i <= patterns.MaxPatternItemIndex; ++i)
{
var instruments = new List <Instrument>();
foreach (var pattern in patterns)
{
if (pattern.PatternItems[i].IsEnabled)
{
instruments.AddRange(pattern.Instruments);
}
}
if (instruments.Count == 0)
{
instruments.Add(nullInstrument);
}
_players.Add(new PatternPlayer(instruments, _bpm));
}
}
private static int GetMaxBeatCount(PatternCollection patterns)
{
int maxBeatCount = 0;
foreach (var pattern in patterns)
{
foreach (var instrument in pattern.Instruments)
{
if (instrument.Beats.Count > maxBeatCount)
{
maxBeatCount = instrument.Beats.Count;
}
}
}
return(maxBeatCount);
}
public void Export(PatternCollection patterns, int bpm, string outputPath, int sampleRate, int bitsPerSample, int channels)
{
if (patterns.MaxPatternItemIndex < 0)
{
throw new ArgumentException("Song must have at least one pattern with beats checked.");
}
int maxPatternItemCount = patterns.MaxPatternItemIndex + 1;
var bigPattern = new Pattern("Big Pattern", maxPatternItemCount);
foreach (var patternItem in bigPattern.PatternItems)
{
patternItem.IsEnabled = true;
}
int maxBeatCount = GetMaxBeatCount(patterns);
foreach (var pattern in patterns)
{
foreach (var instrument in pattern.Instruments)
{
var newInstrument = instrument.Clone();
newInstrument.Beats.Clear();
for (int i = 0; i < maxPatternItemCount; i++)
{
PatternItem patternItem = pattern.PatternItems[i];
if (patternItem.IsEnabled)
{
foreach (var beat in instrument.Beats)
{
newInstrument.Beats.Add(beat.Clone());
}
}
else
{
for (int j = 0; j < instrument.Beats.Count; j++)
{
newInstrument.Beats.Add(new Beat {
IsEnabled = false
});
}
}
// pad if required.
if (maxBeatCount > instrument.Beats.Count)
{
int diff = maxBeatCount - instrument.Beats.Count;
for (int j = 0; j < diff; ++j)
{
newInstrument.Beats.Add(new Beat {
IsEnabled = false
});
}
}
}
bigPattern.Instruments.Add(newInstrument);
}
}
//__Debug(bigPattern);
PatternExporter exp = new PatternExporter();
exp.Export(bigPattern, bpm, outputPath, sampleRate, bitsPerSample, channels);
}