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);
}