private void CreateBar(waveform form, BarType barType)
{
List <NoteType> notesInBar = new List <NoteType>();
int[] pitchIndexes;
if (currentBar == 1)
{
notesInBar = barMaker.BarNotes(barType);
pitchIndexes = pitcher.GenerateNotes(barType, rootInScale + (scale.Length / 3), previousNote, notesInBar.Count, scale.Length);
}
else if (currentBar == totalBars)
{
notesInBar = barMaker.BarNotes(barType);
pitchIndexes = pitcher.GenerateNotes(barType, rootInScale + (scale.Length / 3), previousNote, notesInBar.Count, scale.Length);
}
else
{
notesInBar = barMaker.BarNotes(barType);
pitchIndexes = pitcher.GenerateNotes(barType, rootInScale + (scale.Length / 3), previousNote, notesInBar.Count, scale.Length);
}
previousNote = pitchIndexes.Last <int>();
for (int i = 0; i < notesInBar.Count; ++i)
{
float noteDuration = noteDurations[(int)notesInBar[i]];
buffer.AddRange(noteOutput.NoteFromA3(scale[pitchIndexes[i]], noteDuration, form));
}
currentBar++;
}
public List <float> CreateTrack(int phrases, waveform form, int seed)
{
givenSeed = seed;
barMaker.Seed = seed;
pitcher.Seed = seed;
previousNote = rootInScale;
totalBars = phrases * 4;
CreateStructure(phrases);
for (int i = 0; i < phrases; ++i)
{
CreateFour(form, i, phrases);
}
return(buffer);
}
public List <float> NoteFromA3(int interval, float duration, waveform form)
{
List <float> buff = new List <float>();
for (int i = 0; i < 44100 * duration; i++)
{
// Time value for the oscilator might need tweaking
switch (form)
{
case waveform.sine:
buff.Add(Oscillator.Sine(notes[interval], i / 44100.0f));
break;
case waveform.sawtooth:
buff.Add(Oscillator.SawTooth(notes[interval], i / 44100.0f));
break;
case waveform.square:
buff.Add(Oscillator.Square(notes[interval], i / 44100.0f));
break;
case waveform.triangle:
buff.Add(Oscillator.Triangle(notes[interval], i / 44100.0f));
break;
default:
break;
}
// fade in fade out
if (i < fadeTime)
{
buff[i] *= (i / (float)fadeTime);
}
if (44100.0f * duration - i < fadeTime)
{
buff[i] *= ((44100.0f * duration - i) / (float)fadeTime);
}
}
// test
// buff = MixerClass.AddAttack(buff);
return(buff);
}
private void CreateFour(waveform form, int phraseNumber, int phrases)
{
List <BarType> currentPhrase = phraseStructure[structure[phraseNumber]];
for (int i = 0; i < 4; ++i)
{
if (phraseNumber == 0 && i == 0)
{
CreateBar(form, BarType.Start);
}
else if (phraseNumber == phrases - 1 && i == 3)
{
CreateBar(form, BarType.End);
}
else
{
CreateBar(form, currentPhrase[i]);
}
}
}
public List <float> makeTrack(int[] scale, int keyIndex, float tempo, int nOf4Bars, waveform form, float timeSignature, float seed)
{
int[] wrapped;
wrapped = getIndexes(keyIndex, scale, scale.Length / 3);
List <float> buffer = new List <float>();
List <float> fourBars = new List <float>();
NoteGenerator ng = new NoteGenerator();
Random r = new Random((int)(seed * 10000.0f));
for (int i = 0; i < 4; i++)
{
fourBars.AddRange(ng.NoteFromA3(wrapped[r.Next(5)], (60 / tempo) * timeSignature * 4.0f, form));
}
for (int i = 0; i < nOf4Bars; i++)
{
buffer.AddRange(fourBars);
}
return(buffer);
}