FSO.Content.WorldObjectCatalog.Init C# (CSharp) Method

        public void Init(Content content)
        {
            //load and build catalog
            ItemsByGUID = new Dictionary<uint, ObjectCatalogItem>();
            ItemsByCategory = new List<ObjectCatalogItem>[30];
            for (int i = 0; i < 30; i++) ItemsByCategory[i] = new List<ObjectCatalogItem>();

            var packingslip = new XmlDocument();

            packingslip.Load(content.GetPath("packingslips/catalog.xml"));
            var objectInfos = packingslip.GetElementsByTagName("P");

            foreach (XmlNode objectInfo in objectInfos)
            {
                sbyte Category = Convert.ToSByte(objectInfo.Attributes["s"].Value);
                uint guid = Convert.ToUInt32(objectInfo.Attributes["g"].Value, 16);
                if (Category < 0) continue;
                var item = new ObjectCatalogItem()
                {
                    GUID = guid,
                    Category = Category,
                    Price = Convert.ToUInt32(objectInfo.Attributes["p"].Value),
                    Name = objectInfo.Attributes["n"].Value
                };
                ItemsByCategory[Category].Add(item);
                ItemsByGUID[guid] = item;
            }

            //load and build Content Objects into catalog
            if (File.Exists(Path.Combine(FSOEnvironment.ContentDir, "Objects/catalog_downloads.xml")))
            {
                var dpackingslip = new XmlDocument();

                dpackingslip.Load(Path.Combine(FSOEnvironment.ContentDir, "Objects/catalog_downloads.xml"));
                var downloadInfos = dpackingslip.GetElementsByTagName("P");

                foreach (XmlNode objectInfo in downloadInfos)
                {
                    sbyte dCategory = Convert.ToSByte(objectInfo.Attributes["s"].Value);
                    uint dguid = Convert.ToUInt32(objectInfo.Attributes["g"].Value, 16);
                    if (dCategory < 0) continue;
                    var ditem = new ObjectCatalogItem()
                    {
                        GUID = dguid,
                        Category = dCategory,
                        Price = Convert.ToUInt32(objectInfo.Attributes["p"].Value),
                        Name = objectInfo.Attributes["n"].Value
                    };

                    ItemsByCategory[dCategory].Add(ditem);
                    ItemsByGUID[dguid] = ditem;

                }
            }
        }