/// <summary>
/// Loads an upgrade type definition from the given XML node.
/// </summary>
/// <param name="upgradeTypeElem">The XML node to load from.</param>
/// <param name="metadata">The metadata object being constructed.</param>
private static void LoadUpgradeType(XElement upgradeTypeElem, ScenarioMetadata metadata)
{
XAttribute nameAttr = upgradeTypeElem.Attribute(XmlMetadataConstants.TYPE_NAME_ATTR);
if (nameAttr == null)
{
throw new SimulatorException("Upgrade type name not defined!");
}
UpgradeType upgradeType = new UpgradeType(nameAttr.Value, metadata);
LoadScenarioElementType(upgradeTypeElem, upgradeType, metadata);
XElement researchedInElem = upgradeTypeElem.Element(XmlMetadataConstants.RESEARCHEDIN_ELEM);
if (researchedInElem != null)
{
upgradeType.SetResearchedIn(researchedInElem.Value);
}
XElement previousLevelElem = upgradeTypeElem.Element(XmlMetadataConstants.PREVIOUSLEVEL_ELEM);
if (previousLevelElem != null)
{
upgradeType.SetPreviousLevelName(previousLevelElem.Value);
}
XElement effectsElem = upgradeTypeElem.Element(XmlMetadataConstants.EFFECTS_ELEM);
if (effectsElem != null)
{
foreach (XElement effectElem in effectsElem.Elements())
{
upgradeType.AddEffect(LoadUpgradeEffect(effectElem, metadata));
}
}
metadata.AddUpgradeType(upgradeType);
}