fliXNA_xbox.FlxQuadTree.FlxQuadTree C# (CSharp) Method

        public FlxQuadTree(float X, float Y, float Width, float Height, FlxQuadTree Parent = null)
            : base(X, Y, Width, Height)
        {
            _headA = _tailA = new FlxList();
            _headB = _tailB = new FlxList();

            //Copy the parent's children (if there are any)
            if(Parent != null)
            {
                FlxList iterator;
                FlxList ot;
                if(Parent._headA.Object != null)
                {
                    iterator = Parent._headA;
                    while(iterator != null)
                    {
                        if(_tailA.Object != null)
                        {
                            ot = _tailA;
                            _tailA = new FlxList();
                            ot.next = _tailA;
                        }
                        _tailA.Object = iterator.Object;
                        iterator = iterator.next;
                    }
                }
                if(Parent._headB.Object != null)
                {
                    iterator = Parent._headB;
                    while(iterator != null)
                    {
                        if(_tailB.Object != null)
                        {
                            ot = _tailB;
                            _tailB = new FlxList();
                            ot.next = _tailB;
                        }
                        _tailB.Object = iterator.Object;
                        iterator = iterator.next;
                    }
                }
            }
            else
                _min = (uint)(base.Width + base.Height) / (2 * divisions);
            _canSubdivide = (base.Width > _min) || (base.Height > _min);

            //Set up comparison/sort helpers
            _northWestTree = null;
            _northEastTree = null;
            _southEastTree = null;
            _southWestTree = null;
            _leftEdge = base.X;
            _rightEdge = base.X + base.Width;
            _halfWidth = base.Width / 2;
            _midpointX = _leftEdge + _halfWidth;
            _topEdge = base.Y;
            _bottomEdge = base.Y + base.Height;
            _halfHeight = base.Height / 2;
            _midpointY = _topEdge + _halfHeight;
        }