function Body(image, w, h) {
      var _this;
      _this = _Initialize.call(this) || this;
      _this.image = void 0;
      _this.name = void 0;
      _this.image = _this.setSpanValue(image);
      _this.w = Util.initValue(w, 20);
      _this.h = Util.initValue(h, _this.w);
      _this.name = "Body";
      return _this;
    }
Creates a new Body instance.
@param {string|object|ArraySpan} image - The image source or object to use for the particle body.
@param {number} [w=20] - The width of the particle body.
@param {number} [h] - The height of the particle body. Defaults to the width if not provided.