public override IEnumerable <SoundEvent> Render(RenderParameters parameters, double start = 0)
{
// First generate arpeggios
// Then render the other notes
//return voices.Render(parameters);
foreach (var e in this.GenerateArpeggios(parameters).Concat(voices.Render(parameters, start)))
{
yield return(e);
}
}
public override IEnumerable <SoundEvent> Render(RenderParameters parameters, double start = 0)
{
foreach (var child in this.Content)
{
foreach (var soundEvent in child.Render(parameters, start))
{
yield return(soundEvent);
}
start += child.Duration;
}
}
public override IEnumerable <SoundEvent> Render(RenderParameters parameters, double start = 0)
{
// Number of voices depends on density
int number = Math.Max(2, (int)Math.Round(this.Content.Length * parameters.MusicParameters.Tension));
foreach (var child in this.Content.Take(number))
{
foreach (var soundEvent in child.Render(parameters, start))
{
soundEvent.MultiplyOffset(this.durationMultiplier);
yield return(soundEvent);
}
}
}
public override IEnumerable <SoundEvent> Render(RenderParameters parameters, double start)
{
var on = new NoteOn(start, parameters.Instrument, this.Frequency);
yield return(on);
var off = new NoteOff(start + this.Duration, on);
yield return(off);
// Extra octave depends on density
//if (MusicManager.Random.NextDouble() < parameters.Density) {
// var startOctave = new NoteOn(0, parameters.Instrument, this.Frequency * 2, parameters.Volume);
// yield return startOctave;
// var endOctave = new NoteOff(this.Duration, startOctave);
// yield return endOctave;
//}
}
void scheduleNextMotif()
{
if (this.currentMotif == null)
{
this.currentMotif = this.composition.Motifs["light1a"];
}
else
{
if (this.Parameters.GameOverState == GameState.GameOverState.Won)
{
var win = this.currentMotif.Successors.Where(o => o.Name.Contains("win")).ToList();
if (win.Count() != 0)
{
this.currentMotif = win[0];
goto Rendering;
}
}
else if (this.Parameters.GameOverState == GameState.GameOverState.Lost)
{
var lose = this.currentMotif.Successors.Where(o => o.Name.Contains("lose")).ToList();
if (lose.Count() != 0)
{
this.currentMotif = lose[0];
goto Rendering;
}
}
string tag = this.Parameters.Lightness > .5 ? "light" : "dark";
var choiceSpace = this.currentMotif.Successors.Where(o => o.Name.Contains(tag));
if (choiceSpace.Count() == 0)
{
choiceSpace = this.currentMotif.Successors;
}
this.currentMotif = choiceSpace.RandomElement();
}
Rendering:
RenderParameters parameters = new RenderParameters(this.Parameters, this.Piano);
this.Schedule(this.currentMotif.Render(parameters));
}
public abstract IEnumerable <SoundEvent> Render(RenderParameters parameters, double start = 0);
public IEnumerable <SoundEvent> GenerateArpeggios(RenderParameters parameters)
{
double start = 0;
foreach (var basenote in this.voices.Content[1].Content)
{
double end = start + basenote.Duration;
yield return(new LiftSustain(start)); // Lift sustain before each chord
yield return(new BiteOpportunity(start)); // Have a bit opportunity for each chord
yield return(new BiteOpportunityEnd(start + 0.1));
// Gather arpeggio set
var arpeggioSpace = new List <Pitch>();
foreach (var voice in this.voices.Content)
{
foreach (var pitch in voice.GetPosition(start).Select(note => note.Pitch))
{
if (pitch.Frequency > 0)
{
arpeggioSpace.Add(pitch);
arpeggioSpace.Add(pitch.NextOctave());
arpeggioSpace.Add(pitch.PreviousOctave());
}
}
}
arpeggioSpace = arpeggioSpace.OrderBy(o => o.Frequency).ToList();
int density = (int)Math.Round(2 * parameters.MusicParameters.Tension + 1);
IEnumerable <int> pattern;
int tonesPerChord;
if (density == 1)
{
pattern = new int[] { 1 };
tonesPerChord = 3;
}
else if (density == 2)
{
pattern = new int[] { 1, -1 };
tonesPerChord = 6;
}
else
{
pattern = new int[] { 1, -1, 1 };
tonesPerChord = 12;
}
int tonesPerStroke = tonesPerChord / pattern.Count();
double duration = basenote.Duration / (double)(tonesPerChord);
//Console.WriteLine("pattern: " + string.Join(", ", pattern.Select(o => o.ToString())));
//Console.WriteLine("duration: " + duration.ToString());
// Select tones
IEnumerable <Note> arpeggio = this.SelectArpeggioSequence(arpeggioSpace, pattern, tonesPerStroke, duration);
// Render and yield arpeggio
foreach (var e in (new Serial(arpeggio.ToArray())).Render(parameters, start))
{
yield return(e);
}
start = end;
yield return(new StartRubato(start - 0.1)); // Some articulation just before the next chord
}
}
