/// <summary>
/// Sets the children for the left and right side. This effectively
/// turns it into a parent node. Only intended to be called on a
/// degenerate node.
/// </summary>
/// <remarks>
/// This allows us to enforce the invariant that we should have either
/// two non-null children or two null children.
/// </remarks>
/// <param name="left">The left child.</param>
/// <param name="right">The right child.</param>
public void SetChildren(BspNode left, BspNode right)
{
Debug.Assert(IsDegenerate, "Can only set children post-construction for a degenerate node (otherwise we violate property invariants)");
Left = left;
Right = right;
}
/// <summary>
/// Creates a parent node from some split.
/// </summary>
/// <param name="left">The left child.</param>
/// <param name="right">The right child.</param>
/// <param name="splitter">The splitter that divided the children.
/// </param>
public BspNode(BspNode left, BspNode right, BspSegment splitter)
{
Left = left;
Right = right;
Splitter = splitter;
}