ooobject/example/objects/components/Lungs.js

object generation helper via composition, OLOO style

'use strict';

var ooobject = require('../../../index');

var obj = {

  //all functions and properties starting with _ don't get enumerated
  //readonly, see line 43
  _underWater: false,
  lungColor: 'white',

  //used for the built-in toString() function
  className: 'Lungs',

  lungsAmount: 2,

  //all functions and properties starting with _ don't get enumerated
  _canBreath: function(){
    return !this._underWater;
  },

  breathe: function(){
    if(this._canBreath()){
      console.log('breathing with', this.lungsAmount, 'lungs');
    }else{
      console.log('can\'t breathe');
    }
  }

};

//pass data and init params, needed for composition
module.exports = function Lungs(data, init){

  //pass in both params and init (init is needed for composition)

  return ooobject.create(obj, {

    data: data,
    init: init,

    //set _isHealthy to readonly
    readonly: ['_underWater', 'lungColor']

  });

}