void UpdateDisplay()
{
if (Channels.Count == 0)
{
BallPosition = new Point(100, 100);
return;
}
foreach (var channel in Channels)
{
// If the channel's playing then update it's position
if (Bass.ChannelIsActive(channel.Handle) == PlaybackState.Playing)
{
// Check if channel has reached the max distance
if (channel.Position.Z >= MaxDist || channel.Position.Z <= -MaxDist)
{
channel.Velocity.Z = -channel.Velocity.Z;
}
if (channel.Position.X >= MaxDist || channel.Position.X <= -MaxDist)
{
channel.Velocity.X = -channel.Velocity.X;
}
// Update channel position
channel.Position.Z += channel.Velocity.Z * TimerPeriod / 1000;
channel.Position.X += channel.Velocity.X * TimerPeriod / 1000;
Bass.ChannelSet3DPosition(channel.Handle, channel.Position, null, channel.Velocity);
}
// Draw the channel position indicator
BallPosition = new Point(100 + (int)((100 - 10) * channel.Position.X / MaxDist),
100 - (int)((100 - 10) * channel.Position.Z / MaxDist));
}
Bass.Apply3D();
}