static TiledMapTileset ParseTileset(XmlNode tilesetXml)
{
var tileset = new TiledMapTileset();
tileset.FirstGID = int.Parse(tilesetXml.Attributes["firstgid"].Value);
var tilesetDir = "";
if (tilesetXml.Attributes["source"] != null)
{
ExternalTilesetsFirstGID.Add(
Path.GetFullPath(TiledMapImporter.CurrentRootDir + '/' + tilesetXml.Attributes["source"].Value),
(uint)tileset.FirstGID
);
// If there is "source" field, that means, tileset is external.
var doc = new XmlDocument();
try
{
// Paths in tileset file are relative to that file, so root dir needs to be swapped.
TiledMapImporter.CurrentRootDir = TiledMapImporter.TmxRootDir + Path.GetDirectoryName(tilesetXml.Attributes["source"].Value) + "/";
doc.Load(TiledMapImporter.CurrentRootDir + "/" + Path.GetFileName(tilesetXml.Attributes["source"].Value));
tilesetDir = Path.GetDirectoryName(tilesetXml.Attributes["source"].Value) + '/';
tilesetXml = doc["tileset"]; // Swapping to actual tileset.
}
catch (Exception e)
{
throw new Exception("Error loading external tileset! " + e.Message + " " + e.StackTrace);
}
}
tileset.Properties = XmlHelper.GetProperties(tilesetXml);
// This means, that tileset won't be used in the game and should be ignored.
if (
tileset.Properties.ContainsKey(IgnoreTilesetFlag) &&
bool.Parse(tileset.Properties[IgnoreTilesetFlag])
)
{
TiledMapImporter.CurrentRootDir = TiledMapImporter.TmxRootDir;
return(null);
}
Logger.Log("Parsing tileset " + tilesetXml.Attributes["name"].Value);
#region Main fields.
tileset.Name = tilesetXml.Attributes["name"].Value;
tileset.TileWidth = int.Parse(tilesetXml.Attributes["tilewidth"].Value);
tileset.TileHeight = int.Parse(tilesetXml.Attributes["tileheight"].Value);
tileset.TileCount = int.Parse(tilesetXml.Attributes["tilecount"].Value);
tileset.Columns = int.Parse(tilesetXml.Attributes["columns"].Value);
tileset.Margin = XmlHelper.GetXmlIntSafe(tilesetXml, "margin");
tileset.Spacing = XmlHelper.GetXmlIntSafe(tilesetXml, "spacing");
if (tilesetXml.Attributes["backgroundcolor"] != null)
{
tileset.BackgroundColor = XmlHelper.StringToColor(tilesetXml.Attributes["backgroundcolor"].Value);
}
if (tilesetXml["tileoffset"] != null)
{
tileset.Offset = new Vector2(
float.Parse(tilesetXml["tileoffset"].Attributes["x"].Value, CultureInfo.InvariantCulture),
float.Parse(tilesetXml["tileoffset"].Attributes["y"].Value, CultureInfo.InvariantCulture)
);
}
#endregion Main fields.
// Turning tile xml into usable dictionary.
var tiles = new Dictionary <int, XmlNode>(); // List won't suit, because some tile ids may be skipped.
foreach (XmlNode tileXml in tilesetXml.SelectNodes("tile"))
{
tiles.Add(int.Parse(tileXml.Attributes["id"].Value), tileXml);
}
// Turning tile xml into usable dictionary.
/*
* It is very problematic to load Texture2D without
* GraphicsDevice, so textures are imported later as external references.
* At this stage map will just remember their
* relative paths, and will pick textures up later.
*/
tileset.Tiles = new TiledMapTilesetTile[tileset.TileCount];
if (tilesetXml["image"] != null)
{
/*
* NOTE: Single image tilesets can still have
* <tile> tags with properties.
*/
// Single-image tileset.
var texturePaths = new string[1];
texturePaths[0] = tilesetDir + tilesetXml["image"].Attributes["source"].Value;
tileset.TexturePaths = texturePaths;
var currentID = 0;
for (var y = 0; y < tileset.Height; y += 1)
{
for (var x = 0; x < tileset.Width; x += 1)
{
var tile = new TiledMapTilesetTile();
//tile.Tileset = tileset; // Assigning tileset here is useless - loopback link will be lost during serialization.
tile.GID = tileset.FirstGID + currentID;
tile.TextureID = 0;
tile.TexturePosition = new Rectangle(
tileset.Margin + x * (tileset.TileWidth + tileset.Spacing),
tileset.Margin + y * (tileset.TileHeight + tileset.Spacing),
tileset.TileWidth,
tileset.TileHeight
);
if (tiles.ContainsKey(currentID))
{
ReadTileObjects(tiles[currentID], ref tile);
tile.Properties = XmlHelper.GetProperties(tiles[currentID]);
}
else
{
tile.Objects = new TiledObject[0];
tile.Properties = new Dictionary <string, string>();
}
tileset.Tiles[currentID] = tile;
currentID += 1;
}
}
// Single-image tileset.
}
else
{
// Image collection tileset.
var texturePaths = new List <string>();
var currentID = 0;
foreach (var nodePair in tiles)
{
var tile = new TiledMapTilesetTile();
//tile.Tileset = tileset;
tile.GID = tileset.FirstGID + nodePair.Key;
var texturePath = tilesetDir + nodePair.Value["image"].Attributes["source"].Value;
if (texturePaths.Contains(texturePath))
{
// Avoiding duplicates.
tile.TextureID = texturePaths.IndexOf(texturePath);
}
else
{
tile.TextureID = texturePaths.Count;
texturePaths.Add(texturePath);
}
tile.TexturePosition = new Rectangle(
0, 0,
int.Parse(nodePair.Value["image"].Attributes["width"].Value),
int.Parse(nodePair.Value["image"].Attributes["height"].Value)
);
ReadTileObjects(nodePair.Value, ref tile);
tile.Properties = XmlHelper.GetProperties(nodePair.Value);
tileset.Tiles[currentID] = tile;
currentID += 1;
}
tileset.TexturePaths = texturePaths.ToArray();
// Image collection tileset.
}
TiledMapImporter.CurrentRootDir = TiledMapImporter.TmxRootDir;
return(tileset);
}