Method hasChild

tutorials/common/scenegraph/xml_parser.h:20–25

! checks if child with specified node tag exists */

    /*! checks if child with specified node tag exists */
    bool hasChild(const std::string& childID) const 
    {
      for (size_t i=0; i<children.size(); i++)
        if (children[i]->name == childID) return true;
      return false;
    }

    /*! returns a parameter of the XML node */
    std::string parm(const std::string& parmID) const {