public void VisitItemsByBounds(
IsoRect bounds, IContentLookUpper look_upper)
{
if (bounds.Overlaps(SelfBounds))
{
for (int i = 0, e = Items.Count; i < e; ++i)
{
var item = Items[i];
if (bounds.Overlaps(item.Bounds))
{
look_upper.LookUp(item.Content);
}
}
for (int i = 0, e = Nodes.Length; i < e; ++i)
{
var node = Nodes[i];
if (node != null)
{
node.VisitItemsByBounds(bounds, look_upper);
}
}
}
}
void BackwardVisitNodes(Node node, IsoRect bounds, IContentLookUpper loop_upper)
{
while (node != null)
{
for (int i = 0, e = node.Items.Count; i < e; ++i)
{
var item = node.Items[i];
if (bounds.Overlaps(item.Bounds))
{
loop_upper.LookUp(item.Content);
}
}
node = node.Parent;
}
}