public static void DetachBeach(ref RedBlackTree circles, ref RedBlackTree beaches, RedBlackTree beach)
{
Circle.DetachCircle(ref circles, beach);
beaches.Remove(beach);
Beach.BeachPool.Add(beach);
beach.Reset();
}
public static void DetachCircle(ref RedBlackTree circles, RedBlackTree arc)
{
var circle = arc.Circle;
if (circle != null)
{
if (circle.P == null)
{
FirstCircle = circle.N;
}
circles.Remove(circle);
CirclePool.Add(circle);
circle.Reset();
arc.Circle = null;
}
}