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public generate_TwelveTone ( |
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| paramets | ||
| return | double | |
public double generate_TwelveTone(SongParameters paramets)
{
const int NUMTONEROWS = 2;
Random randomizer = new Random(paramets.seed);
String gen;
Song.SongSegment thisSection = new Song.SongSegment();
String[,] toneRows = new String[NUMTONEROWS,12];
String timeSigPattern = ""; //Simple or Compound Meter
int timeSigQuant = 0; // 2 = Duple, 3 = Triple, etc
String[] notes = { "A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#" };
//Set genre
gen = paramets.genre;
//Now also sets the genre
Song output = new Song(paramets.tempo, "A", paramets.genre);
Console.Out.WriteLine(paramets.genre);
int randOutput = randomizer.Next(2);
switch (randOutput)
{
case 0:
timeSigPattern = "Simple";
break;
case 1:
timeSigPattern = "Compound";
break;
}
timeSigQuant = randomizer.Next(3) + 2;
//Randomize toneRows
for (int i = 0; i < NUMTONEROWS; i++)
{
int[] selected = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
for (int j = 0; j<12; j++){
int pos=0;
do{
pos = randomizer.Next(12);
}while(selected[pos]==1);
selected[pos] = 1;
toneRows[i, j] = notes[pos];
}
}
//Select quantity of phrases (8-32)
int phrases = randomizer.Next(25) + 8;
//Make the actual twelve-tone composition
for (int i = 0; i < NUMTONEROWS; i++)
{
thisSection.melodies.Add(new Song.Melody());
for (int j = 0; j < phrases; j++)
{
int rhythmSum = 0;
//Define measureLen
int measureLen=0;
if (timeSigPattern.Equals("Simple"))
{
measureLen += 4;
}
else
measureLen += 6;
measureLen *= timeSigQuant;
int prevNoteVal = 0;
int farthestPos = 0;
while (rhythmSum < measureLen * 4)
{
int noteVal;
int noteRhythm=0;
int remainderOfMeasure = measureLen - (rhythmSum % measureLen);
int measure = (rhythmSum / measureLen) + 1;
int measureBound = 0;
if (measure == 1)
{
measureBound = 2;
}
if (measure == 2)
{
measureBound = 4;
}
if (measure == 3)
{
measureBound = 6;
}
if (measure == 4)
{
measureBound = 12;
}
if (prevNoteVal == 0)
{
noteVal = prevNoteVal + 1;
}
else if (remainderOfMeasure - (measureBound - prevNoteVal) <= 1)
{
if (remainderOfMeasure - (measureBound - prevNoteVal) == 0)
{
noteVal = prevNoteVal + 1;
}
else
{
int randOut = randomizer.Next(2);
noteVal = prevNoteVal + randOut;
}
}
else
{
if (farthestPos == prevNoteVal)
{
int randOut = randomizer.Next(3) - 1;
noteVal = prevNoteVal + randOut;
}
else
{
int randOut = randomizer.Next(2);
noteVal = prevNoteVal + randOut;
}
}
if (measure == 1)
{
if (noteVal > 4)
noteVal = 4;
}
if (measure == 2)
{
if (noteVal > 9)
noteVal = 9;
}
if (measure == 3)
{
if (noteVal > 11)
noteVal = 11;
}
if (noteVal > 12)
noteVal = 12;
if (noteVal < 1)
noteVal = 1;
int maxlen = Math.Min((remainderOfMeasure - (measureBound - noteVal)), remainderOfMeasure);
noteRhythm = randomizer.Next(maxlen) + 1;
String noteString = toneRows[i, noteVal-1];
if (i == 0)
{
noteString += "5";
}
if (i == 1)
{
noteString += "3";
}
thisSection.melodies[i].melodicLine.Add(new Song.Note(noteString, noteRhythm));
rhythmSum += noteRhythm;
prevNoteVal = noteVal;
if (farthestPos < noteVal)
{
farthestPos = noteVal;
}
}
}
}
output.addSegment(thisSection);
BlottoBeats.MidiOut.MidiOut outgoing = new BlottoBeats.MidiOut.MidiOut();
double songLen = outgoing.outputToMidi(output);
return songLen;
}