private void PlayTone(string id, string note, string beat)
{
if (_firmata == null)
{
return;
}
if (_waitIds.ContainsValue("tone"))
{
return; // one tone at a time for now
}
var noteValue = _notes.IndexOf(note.ToLowerInvariant());
if (noteValue == -1)
{
return;
}
int duration;
switch (beat.ToLowerInvariant())
{
case "eighth":
duration = 1; // duration in eighth notes
break;
case "quarter":
duration = 2;
break;
case "half":
duration = 4;
break;
case "whole":
duration = 8;
break;
case "double":
duration = 16;
break;
default:
// invalid value
return;
}
var idVal = int.Parse(id);
_waitIds.Add(idVal, "tone");
_firmata.SendExtendedMessage((byte)ExtendedMessageCommand.PlayTone,
new byte[]
{
LowByte(idVal),
HighByte(idVal),
(byte)noteValue, (byte)duration
});
}
