private void Start()
{
List <TrackNoteInfo> startedBeats = new List <TrackNoteInfo>();
Func <int, int, int> calculateNote =
(int note, int octave) =>
{
return(octave * 12 + note);
};
try
{
int oneBeat = (int)(60000 / (float)trackInfo.BPM);
for (int i = 0; i <= endBeat; ++i)
{
startedBeats = trackInfo.notes.FindAll((x) => x.beatStart == i);
var beatsToEnd = trackInfo.notes.FindAll((x) => x.beatStart + x.beatLength == i);
beatsToEnd.ForEach((x) => synthEngine.NoteOff(calculateNote(x.currentNote, x.octave)));
startedBeats.ForEach((x) => synthEngine.NoteOn(calculateNote(x.currentNote, x.octave)));
Thread.Sleep(oneBeat);
++currentBeat;
}
}
catch (ThreadAbortException e)
{
startedBeats.ForEach((x) => synthEngine.NoteOff(calculateNote(x.currentNote, x.octave)));
}
}
private void PianoRoll_Load(object sender, EventArgs e)
{
var rowCount = 88;
int buttonWidth = 50;
int buttonHeight = 30;
int octave = 8;
int buttonLocation = 0;
int noteId = 0;
bool isNextSharp = false;
for (int i = 0; i < rowCount; i++)
{
var currentNote = Notes[noteId % Notes.Length].ToString();
Button button;
if (isNextSharp)
{
button = new Button();
button.Size = new Size(buttonWidth * 2 / 3, buttonHeight * 2 / 3);
button.Location = new Point(0, (buttonLocation * buttonHeight) - (buttonHeight * 1 / 3));
button.BackColor = Color.Black;
button.ForeColor = Color.White;
currentNote += (isNextSharp ? "#" : "");
isNextSharp = false;
}
else
{
if (currentNote == "F" || currentNote == "C")
{
button = new PianoRightKey();
}
else if (currentNote == "E" || currentNote == "B")
{
button = new PianoLeftKey();
isNextSharp = true;
}
else
{
button = new PianoMiddleKey();
isNextSharp = true;
}
++noteId;
button.Size = new Size(buttonWidth, buttonHeight);
button.Location = new Point(0, buttonLocation * buttonHeight);
++buttonLocation;
}
if (currentNote == "C")
{
--octave;
currentNote += octave.ToString();
}
button.Text = currentNote;
button.Padding = new Padding(0);
button.Name = string.Format("b{0}", rowCount - i - 1);
button.MouseEnter += (o, me) =>
{
int note = int.Parse(((Button)o).Name.Substring(1));
synthEngine.NoteOn(note);
};
button.MouseLeave += (o, me) =>
{
var toParse = ((Button)o).Name.Substring(1);
int note = int.Parse(toParse);
synthEngine.NoteOff(note);
};
Controls.Add(button);
}
}
