private BinaryTreeItem FindRightParentTreeItemForIndex(int targetChildLevel, int i)
{
BinaryTreeItem parentItem = this;
for (int level = 0; level < targetChildLevel - 1; level++)
{
parentItem = (level < (targetChildLevel - i - 1)) ? parentItem.Left : parentItem.Right;
}
return(parentItem);
}
public BinaryTree AddLevel(params int[] items)
{
if (++_maxLevel != items.Length - 1)
{
throw new ArgumentException("Expected " + (items.Length - 1) + " items in the array for level " + _maxLevel);
}
if (_maxLevel == 1)
{
Left = new BinaryTreeItem {
Value = items[0], Level = _maxLevel, Index = 0
};
Right = new BinaryTreeItem {
Value = items[1], Level = _maxLevel, Index = 1
};
_levels.Add(_maxLevel, new List <BinaryTreeItem> {
Left, Right
});
}
else
{
_levels.Add(_maxLevel, new List <BinaryTreeItem>());
for (int i = 0; i < items.Length; i++)
{
var treeItem = new BinaryTreeItem {
Value = items[i], Level = _maxLevel, Index = i
};
_levels[_maxLevel].Add(treeItem);
if (i != 0)
{
FindRightParentTreeItemForIndex(_maxLevel, i - 1).Right = treeItem;
}
if (i != (items.Length - 1))
{
FindRightParentTreeItemForIndex(_maxLevel, i).Left = treeItem;
}
}
}
return(this);
}