public void Play()
{
Playing = false;
if (intro != null)
{
CHANNELINDEX index = (channel == null) ? CHANNELINDEX.FREE : CHANNELINDEX.REUSE;
system.playSound(index, intro, false, ref channel);
Volume = 1;
playingintro = true;
channel.setCallback(callback);
}
else if (loop != null) system.playSound(CHANNELINDEX.FREE, loop, false, ref channel);
Playing = true;
}