public static NoteVal operator +(NoteVal note, int i)
{
var n = new NoteVal(note.scale, note.pitch, note.value);
var p = n.pitch + i;
loop:
if (p > Pitch.B)
{
p -= 12;
n.scale++;
}
else if (p < Pitch.C)
{
p += 12;
n.scale--;
}
else
{
n.pitch = p;
return(n);
}
goto loop;
}
private void ReadParaChar(char c)
{
switch (c)
{
case 'B': // 如果谱是已经降了的，升回来到原调
if (pitchParaShifted)
{
pitchParaShift++;
}
ppShifts.Add(new PPShift(notesTotal.Count, -1));
break;
case 'S': // 相反
if (pitchParaShifted)
{
pitchParaShift--;
}
ppShifts.Add(new PPShift(notesTotal.Count, 1));
break;
case '@':
chordMode = true;
break;
case '_': // 时值减半 Half Value
if (lyricMode)
{
lyric.Append(' ');
}
else
{
value *= 2;
}
break;
case ' ': // Beat
if (lyricMode)
{
if (lyric.multiChars)
{
lyric.NewWord();
}
else
{
break;
}
}
else
{
if (notes.Count == 0)
{
break;
}
beat.notes = notes;
notes = new List <NoteVal>();
beats.Add(beat);
beat = new Beat();
}
break;
case ',': // Bar
if (notes.Count == 0)
{
break;
}
ReadParaChar(' ');
bar.beats = beats;
beats = new List <Beat>();
bars.Add(bar);
bar = new Bar();
break;
case '.':
break;
case '-':
break;
case '(': // Flat
scale--;
break;
case ')': //
scale++;
break;
case '[': // Sharp
scale++;
break;
case ']': //
scale--;
break;
case '{': // Link
var line = new LinkLine(notesTotal.Count, 0);
linesStack.Push(line);
lines.Add(line);
break;
case '}': //
linesStack.Pop().end = notesTotal.Count - 1;
break;
case 'b':
pitch = -1;
break;
case '#':
pitch = 1;
break;
case '0':
break; //休止符暂不支持
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
int i = PitchTool.Pitch8_to_12(int.Parse(c.ToString()) - 1);
var n = new NoteVal(scale, (Pitch)(pitch + i), value);
n += pitchParaShift;
notes.Add(n);
notesTotal.Add(n);
pitch = 0;
value = valueDivideNum;
break;
case '\r':
case '\n': // end lyric
lyricMode = false;
lyric.multiChars = false;
break;
case '\\': // start lyric
lyricMode = true;
break;
case '*':
if (lyricMode)
{
lyric.multiChars = true;
lyric.NewWord();
}
else
{
goto default;
}
break;
default:
if (lyricMode)
{
lyric.Append(c);
}
else
{
throw new Exception("undef Para Character " + c + ".");
}
break;
}
}
