/// <summary>
/// The clear.
/// </summary>
public void Clear()
{
version++;
Spatial3DCell <T> .Pool(root);
root = Spatial3DCell <T> .GetCell(center - initialSize / 2, initialSize);
}
/// <summary>
/// The shrink.
/// </summary>
private void Shrink()
{
Debug.Assert(CanShrink(), "The tree cannot be shrunk.");
if (root.Children == null)
{
var sc = Spatial3DCell <T> .SubdivisionAmount;
root.Size = root.Size / sc;
root.Start = root.Start + root.Size * (sc / 2);
}
else
{
var middle = root.Children.Length / 2;
var center = root.Children[middle];
root.Children[middle] = null;
Spatial3DCell <T> .Pool(root);
root = center;
Debug.Assert(center != null);
}
}