public static VertexDeclaration ReadVertexDeclaration(XNAGame game, TWXmlNode node)
{
if (node.Value == "NULL")
{
return(null);
}
TWXmlNode elementsNode = node.FindChildNode("Elements");
VertexElement[] elements = new VertexElement[elementsNode.GetAttributeInt("count")];
TWXmlNode[] elementNodes = elementsNode.FindChildNodes("VertexElement");
if (elementNodes.Length != elements.Length)
{
throw new InvalidOperationException("Invalid XML format!");
}
for (int i = 0; i < elementNodes.Length; i++)
{
TWXmlNode elementNode = elementNodes[i];
VertexElement element = new VertexElement();
element.Offset = short.Parse(elementNode.ReadChildNodeValue("Offset"));
element.Stream = short.Parse(elementNode.ReadChildNodeValue("Stream"));
element.UsageIndex = byte.Parse(elementNode.ReadChildNodeValue("UsageIndex"));
element.VertexElementFormat = (VertexElementFormat)System.Enum.Parse(typeof(VertexElementFormat), elementNode.ReadChildNodeValue("VertexElementFormat"));
element.VertexElementMethod = (VertexElementMethod)System.Enum.Parse(typeof(VertexElementMethod), elementNode.ReadChildNodeValue("VertexElementMethod"));
element.VertexElementUsage = (VertexElementUsage)System.Enum.Parse(typeof(VertexElementUsage), elementNode.ReadChildNodeValue("VertexElementUsage"));
elements[i] = element;
}
return(new VertexDeclaration(game.GraphicsDevice, elements));
}