public Tone ComputeSecondToneOfInterval(Tone firstTone, GeneralInterval itv)
{
int sumOfHalftones = 0;
Tone targetTone = firstTone;
Tone startingToneReference = firstTone.ReferenceTone;
if (firstTone.ChromaticChange == -1)
{
targetTone = startingToneReference;
sumOfHalftones += 1;
}
else if (firstTone.ChromaticChange == 1)
{
targetTone = startingToneReference;
sumOfHalftones -= 1;
}
for (int i = 1; i < itv.numeral; i++)
{
ToneRelationship nextBasicToneRelationship = this.GetBasicToneRelationship(targetTone);
targetTone = nextBasicToneRelationship.Tone2;
sumOfHalftones += nextBasicToneRelationship.NumberOfHalftones;
}
while (sumOfHalftones != itv.halftoneNumber)
{
ToneRelationship derivedToneRelationship = this.GetDerivedToneRelationship(targetTone, itv.halftoneNumber - sumOfHalftones);
targetTone = derivedToneRelationship.Tone2;
sumOfHalftones += derivedToneRelationship.NumberOfHalftones;
}
return(targetTone);
}
private Tone GetNextToneToDisplay()
{
int actualNoteIndex = Convert.ToInt32(this.ActualNoteIndex.Value);
if (this.ActualNoteIndex.Value.Equals(""))
{
return(null);
}
if (this.PreviousTone.Value.Equals(""))
{
return(this.ActualScale.StartingTone);
}
Tone tonePrev = ToneGraph.GetToneByName(this.PreviousTone.Value);
int halftoneNumber;
if (this.ActualScale.Type.Equals("dur"))
{
halftoneNumber = durIntervals[actualNoteIndex - 2];
}
else
{
halftoneNumber = molIntervals[actualNoteIndex - 2];
}
IntervalGenerator intervalGenerator = new IntervalGenerator();
GeneralInterval interval = intervalGenerator.GetIntervalByNumeralAndNumberOfHalftones(2, halftoneNumber);
return(intervalGenerator.ComputeSecondToneOfInterval(tonePrev, interval));
}
public Interval GenerateIntervalWithTones()
{
GeneralInterval itv = this.intervals[this.RandomNumber(0, this.intervals.Count)];
Tone startingTone = this.GenerateStartingTone(itv);
Tone targetTone = this.ComputeSecondToneOfInterval(startingTone, itv);
return(new Interval(startingTone, targetTone, itv));
}
private void ReadIntervals()
{
this.intervals = new List <GeneralInterval>();
string[] lines = VyukaHN.Properties.Resources.Intervals.Split(null);
foreach (var line in lines)
{
if (line.Equals(""))
{
continue;
}
var items = line.Split(';');
GeneralInterval interval = new GeneralInterval(items[0], Convert.ToInt32(items[1]), Convert.ToInt32(items[2]));
this.intervals.Add(interval);
}
}
private Tone GenerateStartingTone(GeneralInterval itv)
{
int randomNumber = this.RandomNumber(0, 14 - (itv.numeral - 1));
Tone tone = ToneGraph.GetBasicToneByIndex(randomNumber);
int randomNumber2 = this.RandomNumber(-1, 3);
if (randomNumber2 != 0)
{
if (tone.Name != "h")
{
tone = this.GetDerivedToneRelationship(tone, randomNumber2).Tone2;
}
else
{
tone = this.GetDerivedToneRelationship(tone, Math.Abs(randomNumber2)).Tone2;
}
}
return(tone);
}
public Interval(Tone tone1, Tone tone2, GeneralInterval generalInterval)
{
this.Tone1 = tone1;
this.Tone2 = tone2;
this.GeneralInterval = generalInterval;
}