private void CollectAllLeaves(BspTreeElement bspTreeElement)
{
if (bspTreeElement == null)
return;
if (bspTreeElement is BspTreeNode)
{
CollectAllLeaves(((BspTreeNode)bspTreeElement).Front);
CollectAllLeaves(((BspTreeNode)bspTreeElement).Back);
return;
}
var leaf = (BspTreeLeaf)bspTreeElement;
int i;
if (leafIndices.TryGetValue(leaf, out i))
return;
i = allLeaves.Count;
allLeaves.Add(leaf);
leafIndices[leaf] = i;
foreach (var v in leaf.VisibleLeaves)
CollectAllLeaves(v);
}
private int AddTreeNode(Cb4aLevel l, BspTreeElement bspTreeElement)
{
if (bspTreeElement is BspTreeNode)
return AddTreeNode(l, (BspTreeNode)bspTreeElement);
return AddTreeLeaf(l, (BspTreeLeaf)bspTreeElement);
}
