text: 
  const protected_nodes = [
  	// default protector
  	"protector:protect",
  	"protector:protect2",
  	"protector:protect_hidden",
  
  	// travelnet
  	"travelnet:travelnet",
  	"travelnet:travelnet_red",
  	"travelnet:travelnet_blue",
  	"travelnet:travelnet_green",
  	"travelnet:travelnet_black",
  	"travelnet:travelnet_white",
  	"travelnet:elevator",
  
  	// xp protector
  	"xp_redo:protector",
  
  	// priv protector
  	"priv_protector:protector",
  
  	// default
  	"default:chest_locked",
  	"bones:bones",
  	"default:mese_post_light",
  
  	// various
  	"moreblocks:slab_desert_cobble",
  	"technic:slab_marble",
  
  	// advtrains nodes
  	"advtrains:dtrack_st",
  	"advtrains:dtrack_st_45",
  	"advtrains:dtrack_cr_60"
  ];
  
  module.exports = function(mapblock){
  	for (let i=0; i<protected_nodes.length; i++){
  		if (mapblock.node_id_mapping[protected_nodes[i]] >= 0){
  			return true;
  		}
  	}
  
  	return false;
  };
  