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