MovieLens func calculatedRating()

function calculateRating(e) {

      /*
       * Calculates and returns the rating based on the position of cursor w.r.t the
       * plugin container
       */

      var position = $normalGroup.offset(),
          nodeStartX = position.left,
          nodeEndX = nodeStartX + $normalGroup.width();

      var maxValue = options.maxValue;

      // The x-coordinate(position) of the mouse pointer w.r.t page
      var pageX = e.pageX;

      var calculatedRating = 0;

      // If the mouse pointer is to the left of the container
      if (pageX < nodeStartX) {

        calculatedRating = minValue;
      } else if (pageX > nodeEndX) {
        // If the mouse pointer is right of the container

        calculatedRating = maxValue;
      } else {
        // If the mouse pointer is inside the continer

        /*
         * The fraction of width covered by the pointer w.r.t to the total width
         * of the container.
         */
        var calcPrcnt = (pageX - nodeStartX) / (nodeEndX - nodeStartX);

        if (spacing > 0) {

          /*
                  * If there is spacing between stars, take the percentage of width covered
                  * and subtract the percentage of width covered by stars and spacing, to find
                  * how many stars are covered, the number of stars covered is the rating
                  *
                  * TODO: I strongly feel that this logic can be improved!, Please help!
                  */
          calcPrcnt *= 100;

          var remPrcnt = calcPrcnt;

          while (remPrcnt > 0) {

            if (remPrcnt > percentOfStar) {

              calculatedRating += step;
              remPrcnt -= percentOfStar + percentOfSpacing;
            } else {

              calculatedRating += remPrcnt / percentOfStar * step;
              remPrcnt = 0;
            }
          }
        } else {

          /*
           * If there is not spacing between stars, the fraction of width covered per
           * `maxValue` is the rating
           */
          calculatedRating = calcPrcnt * options.maxValue;
        }

        // Round the rating if `halfStar` or `fullStar` options are chosen
        calculatedRating = round(calculatedRating);
      }
}