var State = require('../State'); 
var Systems = require('../Systems'); 
var NOOP = require('../../utils/NOOP'); 
var CreateStateFromFunction = function (key, state){ 
var newState = new state(); 
if (newState instanceof State) { 
var configKey = newState.sys.settings.key; 
if (configKey !== '') { 
key = configKey; 
} 
if (this.keys.hasOwnProperty(key)) { 
throw new Error('Cannot add a State with duplicate key: ' + key)
} 
return this.createStateFromInstance(key, newState); 
} 
 else { 
newState.sys = new Systems(newState); 
newState.sys.settings.key = key; 
_AN_Call_init('init', newState.sys, this.game); 
this.createStateDisplay(newState); 
if (!newState.init) { 
newState.init = NOOP; 
} 
if (!newState.preload) { 
newState.preload = NOOP; 
} 
if (!newState.create) { 
newState.create = NOOP; 
} 
if (!newState.shutdown) { 
newState.shutdown = NOOP; 
} 
if (!newState.update) { 
newState.update = NOOP; 
} 
if (!newState.render) { 
newState.render = NOOP; 
} 
return newState; 
} 
} 
; 
module.exports = CreateStateFromFunction;