public bool Update(double xp, double zp, float zoom, GLControl gl) // Foreground UI thread, tells it if anything has changed..
{
Debug.Assert(Application.MessageLoop);
StarGrid grd = null;
bool displayed = false;
while (computed.TryTake(out grd)) // remove from the computed queue and mark done
{
grd.Display(gl); // swap to using this one..
Thread.MemoryBarrier(); // finish above before clearing working
grd.Working = false;
displayed = true;
}
Thread.MemoryBarrier(); // finish above
curx = xp;
curz = zp;
ewh.Set(); // tick thread again to consider..
return(displayed); // return if we updated anything..
}
