public void ForeachFromHead(Action <NodeMusic> action)
{
NodeMusic currentNodeMusic = Head;
while (currentNodeMusic != null)
{
action(currentNodeMusic);
currentNodeMusic = currentNodeMusic.Next;
}
}
public void ForeachFromTail(Action <NodeMusic> action)
{
NodeMusic currentNodeMusic = Tail;
while (currentNodeMusic != null)
{
action(currentNodeMusic);
currentNodeMusic = currentNodeMusic.Previous;
}
}
public void AddLast(NodeMusic NodeMusic)
{
count++;
if (Tail == null)
{
Head = NodeMusic;
Tail = NodeMusic;
return;
}
NodeMusic.Previous = Tail;
Tail.Next = NodeMusic;
Tail = NodeMusic;
}
public void AddHead(NodeMusic NodeMusic)
{
count++;
if (Head == null)
{
Head = NodeMusic;
Tail = NodeMusic;
return;
}
NodeMusic.Next = Head;
Head.Previous = NodeMusic;
Head = NodeMusic;
}
public NodeMusic RemoveTail()
{
if (Tail == null)
{
return(null);
}
count--;
var NodeMusicToReturn = Tail;
if (Tail.Previous != null)
{
Tail = Tail.Previous;
Tail.Next = null;
}
else
{
Tail = null;
Head = null;
}
return(NodeMusicToReturn);
}
public NodeMusic RemoveHead()
{
if (Head == null)
{
return(null);
}
count--;
var NodeMusicToReturn = Head;
if (Head.Next != null)
{
Head = Head.Next;
Head.Previous = null;
}
else
{
Head = null;
Tail = null;
}
return(NodeMusicToReturn);
}
