// parse a collection of sprite sheets from a specified sprite sheet data file
public static SpriteSheetCollection parseFrom(String fileName, ContentManager content)
{
if (fileName == null || !File.Exists(fileName))
{
return(null);
}
StreamReader instream;
SpriteSheet spriteSheet;
SpriteSheetCollection spriteSheets = new SpriteSheetCollection();
// open the sprite sheet data file and parse until either:
// an invalid sprite sheet is encountered
// or the end of the file is encountered
try {
instream = File.OpenText(fileName);
do
{
// parse the sprite sheet and store it
spriteSheet = SpriteSheet.parseFrom(instream, content);
spriteSheets.addSpriteSheet(spriteSheet);
} while(spriteSheet != null);
instream.Close();
}
catch (Exception) { return(null); }
return(spriteSheets);
}
