void SendMessages(bool[] newKeys, bool sustain, byte[] velocities)
{
if (device == null)
{
return;
}
var channel = Midi.Enums.Channel.Channel1;
int newVelocityStart = 0;
int finalVelocity = 0;
for (int i = 0; i < 5; i++)
{
if (velocities[i] != 0)
{
finalVelocity = i;
if (velocityState[i] == velocities[i])
{
newVelocityStart = i + 1;
}
}
velocityState[i] = velocities[i];
}
for (int i = 0; i < 25; i++)
{
var pitch = (Midi.Enums.Pitch)(i + offset);
if (newKeys[i] && (0 == keyState[i]))
{
device.SendNoteOn(channel, pitch, velocities[Math.Min(newVelocityStart, finalVelocity)]);
keyState[i] = velocities[Math.Min(newVelocityStart, finalVelocity)];
newVelocityStart++;
}
else if (!newKeys[i] && (0 != keyState[i]))
{
device.SendNoteOff(channel, pitch, 0);
keyState[i] = 0;
}
}
if (sustain && !sustainState)
{
device.SendControlChange(channel, Midi.Enums.Control.SustainPedal, 127);
}
else if (!sustain && sustainState)
{
device.SendControlChange(channel, Midi.Enums.Control.SustainPedal, 0);
}
}
private void Translator_OnControlChange(Midi.Enums.Channel c, Midi.Enums.Control ctrl, int v) => device?.SendControlChange(c, ctrl, v);
