private void SetHead(T data)
{
Head = new CircleListNode <T>(data);
Head.Next = Head;
Head.Previous = Head;
Count++;
}
public void RemoveItem(CircleListNode <T> current)
{
current.Next.Previous = current.Previous;
current.Previous.Next = current.Next;
if (current.Equals(Head))
{
Head = Head.Next;
}
Count--;
}
public CircleListNode <T> GetByIndex(int index)
{
var result = new CircleListNode <T>();
var current = Head;
for (int i = 0; i < Count; i++)
{
if (i == index)
{
result = current;
break;
}
current = current.Next;
}
return(result);
}
public void Add(T data)
{
if (Head == null)
{
SetHead(data);
return;
}
else
{
var current = new CircleListNode <T>(data);
current.Next = Head;
current.Previous = Head.Previous;
Head.Previous.Next = current;
Head.Previous = current;
Count++;
}
}