private void LoadTileSet(XmlHelper xmlHelper, Map map) { string id = xmlHelper.GetAttribute("name"); int firstGid = xmlHelper.GetIntAttribute("firstgid"); int tileWidth = xmlHelper.GetIntAttribute("tilewidth"); int tileHeight = xmlHelper.GetIntAttribute("tileheight"); Size tileSize = new Size(tileWidth, tileHeight); int marginValue = xmlHelper.GetIntAttribute("margin", 0); Size margin = new Size(marginValue); int spacingValue = xmlHelper.GetIntAttribute("spacing", 0); Size spacing = new Size(spacingValue); xmlHelper.AdvanceStartElement("image"); string imageSource = xmlHelper.GetAttribute("source"); xmlHelper.AdvanceEndElement("image"); Size sheetSize = new Size(); try { using (System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(imageSource)) { sheetSize.Width = (bitmap.Width + spacingValue - marginValue) / (tileWidth + spacingValue); sheetSize.Height = (bitmap.Height + spacingValue - marginValue) / (tileHeight + spacingValue); } } catch (Exception exception) { throw new Exception("Unable to determine sheet size from image source", exception); } TileSheet tileSheet = new TileSheet(id, map, imageSource, sheetSize, tileSize); tileSheet.Margin = margin; tileSheet.Spacing = spacing; // keep track of first gid as custom property tileSheet.Properties["@FirstGid"] = firstGid; // also add lastgid to facilitate import tileSheet.Properties["@LastGid"] = firstGid + tileSheet.TileCount - 1; // properties at tile level within tile sets not supported // but are mapped as prefixed properties at tile sheet level XmlNodeType xmlNodeType = xmlHelper.AdvanceNode(); while (xmlNodeType == XmlNodeType.Element && xmlHelper.XmlReader.Name == "tile") { int tileId = xmlHelper.GetIntAttribute("id"); xmlHelper.AdvanceNamedNode(XmlNodeType.Element, "properties"); Component dummyComponent = new DummyComponent(); LoadProperties(xmlHelper, dummyComponent); xmlHelper.AdvanceEndElement("tile"); foreach (string propertyName in dummyComponent.Properties.Keys) { tileSheet.Properties["@Tile@" + tileId + "@" + propertyName] = dummyComponent.Properties[propertyName]; } xmlNodeType = xmlHelper.AdvanceNode(); } map.AddTileSheet(tileSheet); }