public Sequencer()
{
dispatcher.MetaMessageDispatched += delegate(object sender, MetaMessageEventArgs e)
{
if (e.Message.MetaType == MetaType.EndOfTrack)
{
tracksPlayingCount--;
if (tracksPlayingCount == 0)
{
Stop();
OnPlayingCompleted(EventArgs.Empty);
}
}
else
{
clock.Process(e.Message);
}
};
dispatcher.ChannelMessageDispatched += delegate(object sender, ChannelMessageEventArgs e)
{
stopper.Process(e.Message);
};
clock.Tick += delegate(object sender, EventArgs e)
{
lock (lockObject)
{
if (!playing)
{
return;
}
foreach (IEnumerator <int> enumerator in enumerators)
{
enumerator.MoveNext();
}
}
};
}
public SequencerWP()
{
dispatcher.MetaMessageDispatched += delegate(object sender, MetaMessageEventArgs e)
{
if (e.Message.MetaType == MetaType.EndOfTrack)
{
tracksPlayingCount--;
UnityEngine.Debug.LogFormat("end. t:{0}", tracksPlayingCount);
if (tracksPlayingCount == 0)
{
Stop(true);
// playing completed handles initialization if looping is enabled.
OnPlayingCompleted(EventArgs.Empty);
}
}
else
{
clock.Process(e.Message);
}
};
dispatcher.ChannelMessageDispatched += delegate(object sender, ChannelMessageEventArgs e)
{
stopper.Process(e.Message);
};
clock.Tick += delegate(object sender, EventArgs e)
{
lock (lockObject)
{
if (!playing)
{
return;
}
if (Position == LoopEnd)
{
Stop(true);
// playing completed handles initialization if looping is enabled.
OnPlayingCompleted(EventArgs.Empty);
return;
}
// only go through tick iterator if we are out of start offset
if (Position >= LoopStart)
{
foreach (IEnumerator <int> enumerator in enumerators)
{
enumerator.MoveNext();
}
}
}
};
sequence = GlobalReference.sequence;
if (Sequence == null)
{
throw new Exception("Sequence should not be null.");
}
// Process each track and produce the queue of notes to played. This queue is the player paced sheet music.
Dictionary <int, NoteWithDuration> noteToTicksTable = new Dictionary <int, NoteWithDuration>();
foreach (Track t in Sequence)
{
if (t.TrackId == -1)
{
throw new Exception("Track ID is 0. Track is not loaded correctly.");
}
// not part of user select track to play
if (t.TrackId != GlobalReference.leftHandTrackIndex && t.TrackId != GlobalReference.rightHandTrackIndex)
{
continue;
}
noteToTicksTable.Clear();
notesList.Add(new NotesList());
int trackIndex = notesList.Count - 1;
IEnumerator <MidiEvent> enumerator = t.Iterator().GetEnumerator();
while (enumerator.MoveNext())
{
if (enumerator.Current.MidiMessage.MessageType != MidiMessageType.Channel)
{
continue;
}
ChannelMessage channelMsg = (ChannelMessage)enumerator.Current.MidiMessage;
// Store absolute ticks of NoteOn message in hash table
if (channelMsg.Command == ChannelCommand.NoteOn)
{
if (channelMsg.Data2 == 0) // Note on message with velocity of 0 is equivalent of Note Off Message
{
NoteWithDuration noteOff;
if (noteToTicksTable.TryGetValue(channelMsg.Data1, out noteOff))
{
//UnityEngine.Debug.LogFormat("OFF, {0}", channelMsg.Data1);
noteOff.Duration = enumerator.Current.AbsoluteTicks - noteOff.AbsoluteTicks; // TODO: Test if this works
noteToTicksTable.Remove(channelMsg.Data1);
}
}
else
{
//UnityEngine.Debug.LogFormat("ON, {0} Ticks:{1}", channelMsg.Data1, enumerator.Current.AbsoluteTicks);
if (!noteToTicksTable.ContainsKey(channelMsg.Data1))
{
NoteWithDuration note = new NoteWithDuration(enumerator.Current.AbsoluteTicks, channelMsg.Data1, -1, channelMsg.MidiTrack);
notesList[trackIndex].Add(ref note);
noteToTicksTable.Add(channelMsg.Data1, note);
}
else
{
UnityEngine.Debug.LogFormat("Multiple Note On Msgs. Ignored ID: {0}", channelMsg.Data1);
}
}
}
// When encounter NoteOff message, Find corresponding NoteOn message in hash table
// and calculate duration. Update the duration of that note.
else if (channelMsg.Command == ChannelCommand.NoteOff)
{
NoteWithDuration noteOff;
if (noteToTicksTable.TryGetValue(channelMsg.Data1, out noteOff))
{
//UnityEngine.Debug.LogFormat("OFF, {0}", channelMsg.Data1);
noteOff.Duration = enumerator.Current.AbsoluteTicks - noteOff.AbsoluteTicks; // TODO: Test if this works
noteToTicksTable.Remove(channelMsg.Data1);
}
}
}
}
// Find first tick of NoteOn message among the tracks
for (int i = 0; i < notesList.Count; i++)
{
firstTick = (firstTick == -1 || notesList[i].FirstTick < firstTick) ? notesList[i].FirstTick : firstTick;
}
// Find last tick of NoteOn message among the tracks
for (int i = 0; i < Sequence.Count; i++)
{
UnityEngine.Debug.LogFormat("Sequence track length: {0}", Sequence[i].Length);
lastTick = (lastTick == -1 || Sequence[i].Length > lastTick) ? Sequence[i].Length : lastTick;
}
}
