code: public static Rectangle getTile (
          int width, int height, int tileWidth, int tileHeight, int tileIndex)
      {
          Rectangle bounds = new Rectangle();
          getTile(width, height, tileWidth, tileHeight, tileIndex, bounds);
          return bounds;
      }
docs: Returns the rectangle containing the specified tile in the supplied larger rectangle. Tiles
  go from left to right, top to bottom.