private void Draw(pianoNote toDraw, float sizeScalar)
{
toDraw.heightPositionOnScreen *= sizeScalar;
toDraw.length *= sizeScalar;
toDraw.heightPositionOnScreen += (camHeight / 2f) + (toDraw.length / 2f);
Vector3 size = new Vector3(screenUnit, toDraw.length, toDraw.depth);
Vector3 position = new Vector3(
(toDraw.key * screenUnit) - (camWidth / 2f),
toDraw.heightPositionOnScreen,
toDraw.zIndex);
note.transform.localScale = size;
Instantiate(note, position, Quaternion.identity);
}
public void LoadMidi(MidiFile file)
{
MidiFileSequencer sequencer = new MidiFileSequencer(new Synthesizer(44100, 2, 1024, 1)); //temporary needs changed
sequencer.Stop();
sequencer.UnloadMidi();
sequencer.LoadMidi(file);
midiMessages = sequencer.getData();
division = file.Division;
//-------------------parsing midi
var currentPosition = 0f;
var previousDelta = 0f;
foreach (var message in midiMessages)
{
/*var delta = (message.delta - previousDelta);
* currentPosition += delta;
* previousDelta += delta;*/
var delta = message.originalDelta;
currentPosition += delta;
for (int i = 0; i < currentlyDrawing.Count; i++)
{
currentlyDrawing[i].length += delta;
}
if ((int)message.command == 0x80 || ((int)message.command == 0x90 && message.data2 == 0))
{
var noteToStop = currentlyDrawing.Find(item => item.key == (message.data1 - 21));
if (noteToStop != null)
{
Draw(noteToStop, magnitude);
currentlyDrawing.Remove(noteToStop);
}
}
else if ((int)message.command == 0x90)
{
var toAdd = new pianoNote()
{
length = 0f,
velocity = message.data2,
key = (int)message.data1 - 21,
heightPositionOnScreen = currentPosition
};
currentlyDrawing.Add(toAdd);
}
if ((int)message.command == 0xFF && message.data1 == 0x51)
{
//throw TEMPO CHANGED EVENT
Debug.Log($"BPM: {message.BPM}");
}
}
//-------------------------------
//trigger midi loaded event so that any listeners can have access to the midi file division
TempoChangedEventArgs args = new TempoChangedEventArgs(120, magnitude);
MidiLoaded?.Invoke(this, args);
}
