static void Main(string[] args)
{
Stopwatch stopwatch = new Stopwatch();
Console.Write("Enter seed: ");
string seed = Console.ReadLine();
Console.WriteLine("Generating Midi...");
stopwatch.Restart();
// Generate a MIDI using Abundant Music
using (Composition composition = MidiComposer.Compose(seed))
{
stopwatch.Stop();
Console.WriteLine("Seed: " + composition.Seed);
Console.WriteLine("Generated in: " + stopwatch.Elapsed);
// Play the MIDI using managed-midi
// https://github.com/atsushieno/managed-midi
var access = MidiAccessManager.Default;
var music = MidiMusic.Read(composition.Midi);
using (var player = new MidiPlayer(music, access))
{
long totalPlayTime = player.GetTotalPlayTimeMilliseconds();
Console.WriteLine("Play time: " + TimeSpan.FromMilliseconds(totalPlayTime).ToString("g"));
player.Play();
while (player.State == PlayerState.Playing)
{
}
}
}
}
public void NextGenClick(object sender, RoutedEventArgs routedEventArgs)
{
Individu[] newPop = new Individu[Population.MAXINDIVIDUS];
for (int i = 0; i < Population.MAXINDIVIDUS; i++)
{
int rnd = MidiComposer.GetRandom(0, 100);
Individu newInd;
if (rnd < Population.CROSSOVER)
{
Individu parent1 = SelectParent();
Individu parent2 = SelectParent();
newInd = new Individu(parent1, parent2);
}
else
{
Individu parent = SelectParent();
newInd = new Individu(parent);
}
newInd.Mutate();
newPop[i] = newInd;
}
Generation mg = new Generation(newPop);
Survival();
Gens.Add(mg);
//populations[nbPopulation] = new Population(nbPopulation + 1, newPop);
}
public void Mutate()
{
for (int i = 0; i < NBNOTES; i++)
{
int rnd = MidiComposer.GetRandom(0, 101);
if (rnd < Population.MUTARATE)
{
_notes[i] = MidiComposer.GetRandom(24, 96);
}
}
}
public Individu()
{
// c. Ajouter des notes
// Chaque note est comprise entre 0 et 127 (12 correspond au type de note, fixe ici à des 1/4)
// L'équivalence avec les notes / octaves est disponible ici : https://andymurkin.files.wordpress.com/2012/01/midi-int-midi-note-no-chart.jpg
// Ici 16 notes aléatoire entre 16 et 96 (pour éviter certaines notes trop aigues ou trop graves)
for (int i = 0; i < NBNOTES; i++)
{
_notes[i] = MidiComposer.GetRandom(24, 96);
}
init();
}
public void Play()
{
MidiComposer mc = new MidiComposer();
if (!File.Exists(_midiFileName))
{
mc.CreateAndPlayMusic(_notes, _midiFileName, true);
}
else
{
mc.PlayMIDI(_midiFileName);
}
}
public Individu(Individu papa, Individu maman)
{
int rnd = MidiComposer.GetRandom(0, NBNOTES);
for (int i = 0; i < NBNOTES; i++)
{
if (i < rnd)
{
_notes[i] = papa._notes[i];
}
else
{
_notes[i] = maman._notes[i];
}
}
init();
}
/// <summary>
/// Compare le fitness de 2 individus aleatoires.
/// </summary>
/// <returns>L'individu ayant le fitness le plus élevé</returns>
private Individu SelectParent()
{
int rnd1 = MidiComposer.GetRandom(0, Population.MAXINDIVIDUS);
int rnd2 = MidiComposer.GetRandom(0, Population.MAXINDIVIDUS);
Generation g = Gens.Last();
Individu i1 = g.Individus[rnd1];
Individu i2 = g.Individus[rnd2];
if (i1.Fitness > i2.Fitness)
{
return(i1);
}
else
{
return(i2);
}
}
private static void Save(Individu selected)
{
FolderBrowserDialog dialog = new FolderBrowserDialog();
DialogResult result = dialog.ShowDialog();
string path = dialog.SelectedPath;
string filename = selected.MidiFileName;
try
{
MidiComposer mc = new MidiComposer();
if (!File.Exists(filename))
{
mc.CreateAndPlayMusic(selected.Notes, selected.MidiFileName, false);
}
File.Copy(filename, path + "\\" + filename);
//SaveButton.IsEnabled = true;
}
catch (Exception exception)
{
Debug.WriteLine("Erreur: " + exception.Message);
}
}
