/**
* コードの種類(T/SD/D)に応じて代理コードを返す。
* <param name="key">キー</param>
* <param name="chordType">コードの種類</param>
* <returns>コード</returns>
*/
protected Chord GetSubstituteChord(Key key, Chord.ChordTypes chordType)
{
short degree = 0;
List <short> degreeList;
int listCount = 0;
switch (chordType)
{
case Chord.ChordTypes.TONIC:
degreeList = key.GetTonicChordDegreeList();
listCount = degreeList.Count;
degree = degreeList[random.Next(listCount)];
break;
case Chord.ChordTypes.SUB_DOMINANT:
degreeList = key.GetSubDominantChordDegreeList();
listCount = degreeList.Count;
degree = degreeList[random.Next(listCount)];
break;
case Chord.ChordTypes.DOMINANT:
degreeList = key.GetDominantChordDegreeList();
listCount = degreeList.Count;
degree = degreeList[random.Next(listCount)];
break;
}
Chord chord = key.GetChordByDegree(degree);
return(chord);
}
public Bar(Song song, short barIndex)
{
chordType = Chord.ChordTypes.TONIC;
chord = null;
this.song = song;
this.barIndex = barIndex;
chordChangeHandlers = new List <IChordChangeHandler>();
}
public void Map(Song song)
{
Bar bar = null;
Random random = new Random();
int randomVal = 0;
short barCount = song.GetBarCount();
Chord.ChordTypes oldType = Chord.ChordTypes.DOMINANT;
for (short i = 0; i < barCount; i++)
{
bar = song.GetBarAt(i);
//T/SD/Dへの振り分け処理。この部分を調整可能にすると個性が出せるかもしれない
if (oldType == Chord.ChordTypes.DOMINANT || i == barCount - 1)
{
bar.ChordType = Chord.ChordTypes.TONIC;
}
else
{
randomVal = random.Next(3);
switch (randomVal)
{
case 0:
bar.ChordType = Chord.ChordTypes.TONIC;
break;
case 1:
bar.ChordType = Chord.ChordTypes.SUB_DOMINANT;
break;
case 2:
bar.ChordType = Chord.ChordTypes.DOMINANT;
break;
}
}
oldType = bar.ChordType;
}
}
/**
* コードの種類(T/SD/D)に応じて決められたコードを返す。
* <param name="key">キー</param>
* <param name="chordType">コードの種類</param>
* <returns>コード</returns>
*/
protected Chord GetFixedChord(Key key, Chord.ChordTypes chordType)
{
short degree = 0;
switch (chordType)
{
case Chord.ChordTypes.TONIC:
degree = key.GetTonicChordDegree();
break;
case Chord.ChordTypes.SUB_DOMINANT:
degree = key.GetSubDominantChordDegree();
break;
case Chord.ChordTypes.DOMINANT:
degree = key.GetDominantChordDegree();
break;
}
Chord chord = key.GetChordByDegree(degree);
return(chord);
}
