/// <summary>
/// Returns an SM2 map texuture
/// </summary>
public BitmapSource GetTexture(Map map, int detail, UnitSync unitSync)
{
UnitSync.NativeMethods.RemoveAllArchives();
UnitSync.NativeMethods.AddAllArchives(map.ArchiveName);
ProgressChanged(this, new ProgressChangedEventArgs(0, "Extracting map"));
var mapDir = UnitSync.NativeMethods.GetMapFileName(UnitSync.NativeMethods.GetMapIndex(map.Name));
var smfFileData = unitSync.ReadVfsFile(mapDir);
BinaryReader reader;
try {
reader = new BinaryReader(new MemoryStream(smfFileData));
} catch (System.ArgumentNullException nullEx)
{
throw new System.ArgumentNullException("smfFileData", "Unable to read SMF: " + mapDir);
}
var smfHeader = reader.ReadStruct <SMFHeader>();
smfHeader.SelfCheck();
var mapWidth = smfHeader.mapx;
var mapHeight = smfHeader.mapy;
reader.BaseStream.Position = smfHeader.tilesPtr;
var mapTileHeader = reader.ReadStruct <MapTileHeader>();
// get the tile files and the number of tiles they contain
var tileFiles = new Dictionary <byte[], int>();
for (var i = 0; i < mapTileHeader.numTileFiles; i++)
{
var numTiles = reader.ReadInt32();
var tileFileData = unitSync.ReadVfsFile("maps\\" + reader.ReadCString());
tileFiles.Add(tileFileData, numTiles);
}
// get the position of the tiles
var mapUnitInTiles = Tiles.TileMipLevel1Size / smfHeader.texelPerSquare;
var tilesX = smfHeader.mapx / mapUnitInTiles;
var tilesY = smfHeader.mapy / mapUnitInTiles;
var tileIndices = new int[tilesX * tilesY];
for (var i = 0; i < tileIndices.Length; i++)
{
tileIndices[i] = reader.ReadInt32();
}
Tiles.ProgressChanged += (s, e) => ProgressChanged(this, e);
UnitSync.NativeMethods.RemoveAllArchives();
// load the tiles
WriteableBitmap ret;
try {
ret = (WriteableBitmap)Tiles.LoadTiles(tileFiles, tileIndices, tilesX, tilesY, detail);
} catch (System.Exception ex)
{
// some maps (e.g. Glacies) fail to load the tiles properly; use minimap as a fallback
//if (map.Texture == null) throw new System.Exception("Unable to load map texture");
//var newBitmap = new Bitmap(GetBitmap(map.Texture), new Size(map.Texture.PixelWidth / 8, map.Texture.PixelHeight / 8));
map.Minimap = unitSync.GetMinimap(map);
ret = new WriteableBitmap(ConvertBitmap(map.Minimap));
ret.Freeze();
//ret.Unlock();
}
return(ret);
}