public int RandomRestOrNote()
{
var differentEvents = DifferentEvents.Where(e => e != (int)RestOrTie.Tie).ToList();
var index = ThreadSafeRandom.ThisThreadsRandom.Next(differentEvents.Count);
return(differentEvents[index]);
}
public void Set(Melody baseMelody)
{
var allEvents = baseMelody
.Measures
.SelectMany(m => m.Events).ToList();
var groupedByType = allEvents.GroupBy(e => e.Number).ToList();
DifferentEvents.AddRange(groupedByType.Select((IGrouping <int, Event> e) => e.Key));
Rates.Add(new TypeEventRate(typeof(Note), allEvents.OfType <Note>().Count() / (double)allEvents.Count() * 100));
Rates.Add(new TypeEventRate(typeof(Rest), allEvents.OfType <Rest>().Count() / (double)allEvents.Count() * 100));
Rates.Add(new TypeEventRate(typeof(Tie), allEvents.OfType <Tie>().Count() / (double)allEvents.Count() * 100));
Rates.OrderBy(r => r.Rate);
}
public int RandomEventWithRate()
{
var type = GetTypeByRate();
if (type == typeof(Note))
{
var differentNotes = DifferentEvents.Where(e => e != (int)RestOrTie.Tie && e != (int)RestOrTie.Rest).ToList();
var index = ThreadSafeRandom.ThisThreadsRandom.Next(differentNotes.Count);
return(differentNotes[index]);
}
else if (type == typeof(Rest))
{
return((int)RestOrTie.Rest);
}
else
{
return((int)RestOrTie.Tie);
}
}
