code: function () {
              var translateFraction = this.translationFraction;
              var x = this.startPosition.x;
              var y = this.startPosition.y;
              if (this.endPosition.x) {
                  x = this.startPosition.x + translateFraction * (this.endPosition.x - this.startPosition.x);
              }
              if (this.endPosition.y) {
                  y = this.startPosition.y + translateFraction * (this.endPosition.y - this.startPosition.y);
              }
              return { x: x, y: y };
          }
docs: Gets the wave's current position.
  @returns {{x: Number, y: Number}} Object containing coordinates of the wave's current position.