var Class = require('../utils/Class'); 
var StateManager = new Class({ 
initialize: function StateManager(state, game){ 
this.state = state; 
this.settings = state.sys.settings; 
this.key = state.sys.settings.key; 
this.manager = game.state; 
this._queue = [] ; 
} 
,
update: function (){ 
var len = _AN_Read_length('length', this._queue); 
if (len === 0) { 
return ; 
} 
var manager = this.manager; 
for (var i = 0; 
i < len; i++ ){ 
var action = this._queue[i]; 
switch (action.type){ 
case 'start': manager.stop(this.key); 
manager.start(action.key, action.data); 
break ; 
case 'launch': manager.start(action.key, action.data); 
break ; 
case 'pause': manager.pause(action.key); 
break ; 
case 'resume': manager.resume(action.key); 
break ; 
case 'stop': manager.stop(action.key); 
break ; 
case 'swap': manager.swap(this.key, action.key); 
break ; 
case 'sleep': manager.sleep(action.key); 
break ; 
case 'wake': manager.wake(action.key); 
break ; 
} 
} 
this._queue.length = 0; 
} 
,
start: function (key, data){ 
if (key === undefined) { 
key = this.key; 
} 
this._queue.push({ 
type: 'start',
key: key,
data: data}
); 
return this; 
} 
,
launch: function (key, data){ 
if (key === undefined) { 
key = this.key; 
} 
this._queue.push({ 
type: 'launch',
key: key,
data: data}
); 
return this; 
} 
,
pause: function (key){ 
if (key === undefined) { 
key = this.key; 
} 
this._queue.push({ 
type: 'pause',
key: key}
); 
return this; 
} 
,
resume: function (key){ 
if (key === undefined) { 
key = this.key; 
} 
this._queue.push({ 
type: 'resume',
key: key}
); 
return this; 
} 
,
sleep: function (key){ 
this._queue.push({ 
type: 'sleep',
key: key}
); 
return this; 
} 
,
wake: function (key){ 
this._queue.push({ 
type: 'wake',
key: key}
); 
return this; 
} 
,
swap: function (key){ 
this._queue.push({ 
type: 'swap',
key: key}
); 
return this; 
} 
,
stop: function (key){ 
if (key === undefined) { 
key = this.key; 
} 
this._queue.push({ 
type: 'stop',
key: key}
); 
return this; 
} 
,
setVisible: function (value){ 
this.settings.visible = value; 
return this; 
} 
,
moveUp: function (){ 
this._queue.push({ 
type: 'moveUp'}
); 
} 
,
moveDown: function (){ 
this._queue.push({ 
type: 'moveDown'}
); 
} 
,
bringToTop: function (){ 
this._queue.push({ 
type: 'bringToTop'}
); 
} 
,
sendToBack: function (){ 
this._queue.push({ 
type: 'sendToBack'}
); 
} 
,
get: function (key){ 
return this.manager.getState(key); 
} 
,
transitionTo: function (key, duration){ 
} 
,
isActive: function (key){ 
if (key === undefined) { 
key = this.key; 
} 
return this.manager.isActive(key); 
} 
}
); 
module.exports = StateManager;