private void DetachNode(int index, GameWorld gameWorld, ref GameObject parent)
{
if (this.Next != 0)
{
gameWorld.Objects[this.Next].Prev = this.Prev;
}
if (this.Prev != 0)
{
gameWorld.Objects[this.Prev].Next = this.Next;
}
if (parent.FirstChild == index)
{
parent.FirstChild = this.Next;
}
if (parent.LastChild == index)
{
parent.LastChild = this.Prev;
}
this.Parent = 0;
this.Next = 0;
this.Prev = 0;
}
/// <summary>
/// The attach node tail.
/// </summary>
/// <param name="index">
/// The index.
/// </param>
/// <param name="parent">
/// The parent.
/// </param>
/// <param name="parentObject">
/// The parent object.
/// </param>
/// <param name="world">
/// The world.
/// </param>
public void AttachNodeTail(int index, int parent, ref GameObject parentObject, GameWorld world)
{
this.Parent = parent;
this.Prev = parentObject.LastChild;
this.Next = 0;
parentObject.LastChild = index;
if (parentObject.FirstChild == 0)
{
parentObject.FirstChild = index;
}
else
{
world.Objects[this.Prev].Next = index;
}
}