/// <summary>
/// Установка елемента головным
/// </summary>
/// <param name="data"></param>
private void SetHeadItem(T data)
{
Head = new DuplexItem <T>(data);
Head.Next = Head;
Head.Previous = Head;
Count = 1;
}
private void SetHeadItem(T data)
{
var item = new DuplexItem <T>(data);
Head = item;
Tail = item;
Count = 1;
}
IEnumerator <float> IEnumerable <float> .GetEnumerator()
{
DuplexItem <float> current = Tail;
while (current != null)
{
yield return(current.Data);
current = current.Next;
}
}
public void PushFront(T data)
{
if (Count == 0)
{
SetHeadItem(data);
return;
}
var item = new DuplexItem <T>(data);
item.Previous = Head;
Head.Next = item;
Head = item;
Count++;
}
public void PushBack(T data)
{
if (Count == 0)
{
SetHeadItem(data);
return;
}
var item = new DuplexItem <T>(data);
item.Next = Tail;
Tail.Previous = item;
Tail = item;
Count++;
}
public void SetThird(float el)
{
DuplexItem <float> current = Head;
int counter = 0;
while (current != null)
{
if (counter == 2)
{
current.Data = el;
}
current = current.Previous;
counter++;
}
}
public T PopFront()
{
if (Count > 0)
{
var result = Head.Data;
var current = Head.Previous;
current.Next = null;
Head = current;
Count--;
return(result);
}
else
{
return(default(T));
}
}
public T PopBack()
{
if (Count > 0)
{
var result = Tail.Data;
var current = Tail.Next;
current.Previous = null;
Tail = current;
Count--;
return(result);
}
else
{
return(default(T));
}
}
/// <summary>
/// Добавление елемента в кольцевой список
/// </summary>
/// <param name="data"></param>
public void Add(T data)
{
if (Count == 0)
{
SetHeadItem(data);
return;
}
var item = new DuplexItem <T>(data);
item.Next = Head;
item.Previous = Head.Previous;
Head.Previous.Next = item;
Head.Previous = item;
Count++;
}
public float GetSixs()
{
float sixs = 0;
DuplexItem <float> current = Head;
int counter = 0;
while (current != null)
{
if (counter == 5)
{
sixs = current.Data;
}
current = current.Previous;
counter++;
}
return(sixs);
}
/// <summary>
/// Вспомогательный метод для удаления елемента
/// </summary>
/// <param name="current"></param>
private void RemoveItem(DuplexItem <T> current)
{
current.Next.Previous = current.Previous;
current.Previous.Next = current.Next;
Count--;
}
public void ClearDeq()
{
Tail = null;
Count = 0;
}