/// <summary>
/// Constructs an RBTNode with Data of a given type. Children default to null.
/// </summary>
/// <param name="data">Data of type TData held by this node.</param>
/// <param name="leftChild">Left child of this Node.
/// The left child should return 1 when compared to this node.</param>
/// <param name="rightChild">Right child of this Node.
/// The right child should return -1 when compared to this node</param>
public RBTNode(TData data, RBTNode <TData> leftChild = null, RBTNode <TData> rightChild = null, NodeColor color = NodeColor.RED)
{
this.data = data;
this.leftChild = leftChild;
this.rightChild = rightChild;
this.color = color;
}
public void Free()
{
Console.WriteLine("Freeing " + Data.ToString());
Data = default(TData);
leftChild = null;
rightChild = null;
parent = null;
}
static void Main(string[] args)
{
RedBlackTree <int> myRBT = new RedBlackTree <int>();
String input = "";
RBTNode <int> currNode = null;
while (input != "done")
{
Console.WriteLine();
Console.WriteLine("Enter a command");
input = Console.ReadLine();
switch (input)
{
case "add":
Console.WriteLine("Enter data to be added to tree");
myRBT.Add(new RBTNode <int>(int.Parse(Console.ReadLine())));
break;
case "print":
myRBT.Print();
break;
case "remove":
Console.WriteLine("Enter data to be removed from tree");
myRBT.Remove(new RBTNode <int>(int.Parse(Console.ReadLine())));
break;
case "root":
currNode = (RBTNode <int>)myRBT.Root;
Console.WriteLine(currNode.Data);
break;
case "right":
try
{
currNode = (RBTNode <int>)currNode.RightChild;
}
catch (NullReferenceException e) { Console.WriteLine(currNode.Data + " does not have a right child!"); }
Console.WriteLine(currNode.Data + " " + (currNode as RBTNode <int>).Color);
break;
case "left":
try {
currNode = (RBTNode <int>)currNode.LeftChild;
Console.WriteLine(currNode.Data + " " + (currNode as RBTNode <int>).Color);
}
catch (NullReferenceException e) { Console.WriteLine(currNode.Data + " does not have a left child!"); }
break;
case "parent":
try
{
currNode = (RBTNode <int>)currNode.Parent;
Console.WriteLine(currNode.Data + " " + (currNode as RBTNode <int>).Color);
}
catch (NullReferenceException e) { Console.WriteLine(currNode.Data + " does not have a parent!"); }
break;
case "curr":
Console.WriteLine(currNode.Data + " " + (currNode as RBTNode <int>).Color);
break;
}
}
}
