var Class = require('../utils/Class'); 
var DataManager = require('./DataManager'); 
var PluginManager = require('../boot/PluginManager'); 
var DataManagerPlugin = new Class({ 
Extends: DataManager,
initialize: function DataManagerPlugin(scene){ 
DataManager.call(this, this.scene, scene.sys.events); 
this.scene = scene; 
this.systems = scene.sys; 
scene.sys.events.on('start', this.start, this); 
} 
,
start: function (){ 
this.events = this.scene.sys.events; 
var eventEmitter = this.systems.events; 
eventEmitter.once('shutdown', this.shutdown, this); 
eventEmitter.once('destroy', this.destroy, this); 
} 
,
shutdown: function (){ 
var eventEmitter = this.systems.events; 
eventEmitter.off('shutdown', this.shutdown, this); 
} 
,
destroy: function (){ 
DataManager.prototype.destroy.call(this); 
this.scene.sys.events.off('start', this.start, this); 
this.scene = null ; 
this.systems = null ; 
} 
}
); 
PluginManager.register('DataManagerPlugin', DataManagerPlugin, 'data'); 
module.exports = DataManagerPlugin;