public List <string> Encode()
{
List <string> encodedLines = new List <string>();
foreach (var channelEvent in ChannelEvents)
{
string line = "";
if (channelEvent is NoteEvent)
{
NoteEvent noteEvent = channelEvent as NoteEvent;
line = noteEvent.Pitch.ToString() + "," +
noteEvent.StartTime.ToString() + "," +
noteEvent.Length.ToString() + "," +
noteEvent.Value.ToString() + "," +
noteEvent.SectionNumber.ToString() + "," +
"" + "," +
"0";
}
else if (channelEvent is SectionEvent)
{
SectionEvent sectionEvent = channelEvent as SectionEvent;
line = "\n-4" + "," +
sectionEvent.StartTime.ToString() + "," +
sectionEvent.Length.ToString() + "," +
"-1" + "," +
sectionEvent.SectionNumber.ToString() + "," +
"0" + "," +
"0";
}
else if (channelEvent is SustainEvent)
{
SustainEvent sustainEvent = channelEvent as SustainEvent;
line = "-1" + "," +
sustainEvent.StartTime.ToString() + "," +
sustainEvent.Length.ToString() + "," +
"-1" + "," +
sustainEvent.SectionNumber.ToString() + "," +
"5" + "," +
"0";
}
encodedLines.Add(line);
}
return(encodedLines);
}
public void SortChannelEvents()
{
ChannelEvents.Sort((x, y) => {
if (x.StartTime > y.StartTime)
{
return(1);
}
else if (x.StartTime < y.StartTime)
{
return(-1);
}
else if (x.StartTime == y.StartTime)
{
if (x is SectionEvent)
{
return(-1);
}
else if (y is SectionEvent)
{
return(1);
}
if (x is SustainEvent)
{
return(-1);
}
else if (y is SustainEvent)
{
return(1);
}
NoteEvent noteX = x as NoteEvent;
NoteEvent noteY = y as NoteEvent;
if (noteX.Pitch > noteY.Pitch)
{
return(1);
}
else
{
return(-1);
}
}
return(0);
});
}
public void Parse(string text)
{
string[] split = text.Split(',');
if (split.Length < 2)
{
return;
}
double tempTicks = Double.Parse(split[1]);
currentTime = (tempTicks - lastTempTicks) / ticksPerBeat * tempo / tempoPerSecond + lastCurrentTime;
lastTempTicks = tempTicks;
lastCurrentTime = currentTime;
switch (split[2].Trim())
{
case "Header":
ticksPerBeat = Double.Parse(split[5]);
break;
case "Tempo":
if (tempo == -1)
{
tempo = Double.Parse(split[3]);
break;
}
tempo = Double.Parse(split[3]);
break;
case "Note_on_c":
int pitchOn = Int32.Parse(split[4]) - 12;
switch (pitchOn)
{
/* 踏板 */
case 11:
if (suspendedChannelEvents.ContainsKey(pitchOn))
{
SustainEvent suspendedSustainEvent = suspendedChannelEvents[pitchOn] as SustainEvent;
suspendedSustainEvent.Length = currentTime - suspendedSustainEvent.StartTime - 0.01;
ChannelEvents.Add(suspendedSustainEvent);
suspendedChannelEvents.Remove(pitchOn);
//Console.WriteLine("sustain[" + suspendedSustainEvent.StartTime + "] is Length [" + suspendedSustainEvent.Length + "].");
}
SustainEvent sustainEvent = new SustainEvent()
{
StartTime = currentTime,
SectionNumber = tempSectionNumber
};
suspendedChannelEvents.Add(pitchOn, sustainEvent);
break;
/* 小節 */
case 10:
if (suspendedChannelEvents.ContainsKey(pitchOn))
{
SectionEvent suspendedSectionEvent = suspendedChannelEvents[pitchOn] as SectionEvent;
suspendedSectionEvent.Length = currentTime - suspendedSectionEvent.StartTime;
ChannelEvents.Add(suspendedSectionEvent);
suspendedChannelEvents.Remove(pitchOn);
}
tempSectionNumber++;
SectionEvent sectionEvent = new SectionEvent()
{
StartTime = currentTime,
SectionNumber = tempSectionNumber,
};
suspendedChannelEvents.Add(pitchOn, sectionEvent);
break;
/* 音符 */
default:
if (suspendedChannelEvents.ContainsKey(pitchOn))
{
NoteEvent suspendedNoteEvent = suspendedChannelEvents[pitchOn] as NoteEvent;
suspendedNoteEvent.Length = currentTime - suspendedNoteEvent.StartTime;
ChannelEvents.Add(suspendedNoteEvent);
suspendedChannelEvents.Remove(pitchOn);
}
NoteEvent noteEvent = new NoteEvent()
{
Pitch = pitchOn,
StartTime = currentTime,
Value = Int32.Parse(split[5]),
SectionNumber = tempSectionNumber
};
suspendedChannelEvents.Add(pitchOn, noteEvent);
break;
}
break;
case "Note_off_c":
int pitchOff = Int32.Parse(split[4]) - 12;
switch (pitchOff)
{
/* 踏板 */
case 11:
if (suspendedChannelEvents.ContainsKey(pitchOff) && false)
{
SustainEvent suspendedSustainEvent = suspendedChannelEvents[pitchOff] as SustainEvent;
suspendedSustainEvent.Length = currentTime - suspendedSustainEvent.StartTime;
ChannelEvents.Add(suspendedSustainEvent);
suspendedChannelEvents.Remove(pitchOff);
}
break;
/* 小節 */
case 10:
if (suspendedChannelEvents.ContainsKey(pitchOff) && false)
{
SectionEvent suspendedSectionEvent = suspendedChannelEvents[pitchOff] as SectionEvent;
suspendedSectionEvent.Length = currentTime - suspendedSectionEvent.StartTime;
ChannelEvents.Add(suspendedSectionEvent);
suspendedChannelEvents.Remove(pitchOff);
}
break;
/* 音符 */
default:
if (suspendedChannelEvents.ContainsKey(pitchOff))
{
NoteEvent suspendedNoteEvent = suspendedChannelEvents[pitchOff] as NoteEvent;
suspendedNoteEvent.Length = currentTime - suspendedNoteEvent.StartTime;
ChannelEvents.Add(suspendedNoteEvent);
suspendedChannelEvents.Remove(pitchOff);
}
break;
}
break;
}
}