FairyGUI.GComponent.GetSnappingPosition C# (CSharp) Method

        protected internal virtual void GetSnappingPosition(ref float xValue, ref float yValue)
        {
            int cnt = _children.Count;
            if (cnt == 0)
                return;

            EnsureBoundsCorrect();

            GObject obj = null;

            int i = 0;
            if (yValue != 0)
            {
                for (; i < cnt; i++)
                {
                    obj = _children[i];
                    if (yValue < obj.y)
                    {
                        if (i == 0)
                        {
                            yValue = 0;
                            break;
                        }
                        else
                        {
                            GObject prev = _children[i - 1];
                            if (yValue < prev.y + prev.height / 2) //top half part
                                yValue = prev.y;
                            else //bottom half part
                                yValue = obj.y;
                            break;
                        }
                    }
                }

                if (i == cnt)
                    yValue = obj.y;
            }

            if (xValue != 0)
            {
                if (i > 0)
                    i--;
                for (; i < cnt; i++)
                {
                    obj = _children[i];
                    if (xValue < obj.x)
                    {
                        if (i == 0)
                        {
                            xValue = 0;
                            break;
                        }
                        else
                        {
                            GObject prev = _children[i - 1];
                            if (xValue < prev.x + prev.width / 2) // top half part
                                xValue = prev.x;
                            else//bottom half part
                                xValue = obj.x;
                            break;
                        }
                    }
                }
                if (i == cnt)
                    xValue = obj.x;
            }
        }