internal override XElement CreateXml()
{
var xRoot = new XElement(XmlConstants.Brick);
xRoot.SetAttributeValue(XmlConstants.Type, XmlConstants.XmlGlideToBrickType);
var xElementY = YDestination.CreateXml();
xElementY.SetAttributeValue(XmlConstants.Category, XmlConstants.YDestination);
var xElementX = XDestination.CreateXml();
xElementX.SetAttributeValue(XmlConstants.Category, XmlConstants.XDestination);
var xElementDuration = DurationInSeconds.CreateXml();
xElementDuration.SetAttributeValue(XmlConstants.Category, XmlConstants.DurationInSeconds);
var xFormulalist = new XElement(XmlConstants.FormulaList);
xFormulalist.Add(xElementY);
xFormulalist.Add(xElementX);
xFormulalist.Add(xElementDuration);
xRoot.Add(xFormulalist);
return xRoot;
}