fire_royalslider.php

function fire_royalslider_func($atts){
    $sliderid = $atts['id'];
    $out = '';
    
    if (!$sliderid) return;
   /* Print slider HTML, skip this part if you already have it on page */
    $out .= get_new_royalslider($sliderid); 
    /* Print slider END */
    
    // Init code
    include_once(ABSPATH.'wp-content/plugins/new-royalslider/classes/NewRoyalSliderMain.php');
    $init_codes = NewRoyalSliderMain::$sliders_init_code;
    if(count($init_codes) > 0 ) {
      $out .= '<script>';
          $out .= "jQuery(document).ready(function($) {\n";
            foreach($init_codes  as $key => $value) {
                    $out .= $value;
            }
          $out .= "});\n";
      $out .= '</script>';
      }
      return $out;
}

add_shortcode('fire_royalslider', 'fire_royalslider_func');