var Class = require('../../../src/utils/Class'); 
var OrthographicCamera = require('./OrthographicCamera'); 
var PerspectiveCamera = require('./PerspectiveCamera'); 
var PluginCache = require('../../../src/plugins/PluginCache'); 
var CameraManager = new Class({ 
initialize: function CameraManager(scene){ 
this.scene = scene; 
this.systems = scene.sys; 
this.cameras = [] ; 
scene.sys.events.once('boot', this.boot, this); 
scene.sys.events.on('start', this.start, this); 
} 
,
boot: function (){ 
this.systems.events.once('destroy', this.destroy, this); 
} 
,
start: function (){ 
var eventEmitter = this.systems.events; 
eventEmitter.on('update', this.update, this); 
eventEmitter.once('shutdown', this.shutdown, this); 
} 
,
add: function (fieldOfView, width, height){ 
return this.addPerspectiveCamera(fieldOfView, width, height); 
} 
,
addOrthographicCamera: function (width, height){ 
var config = this.scene.sys.game.config; 
if (width === undefined) { 
width = config.width; 
} 
if (height === undefined) { 
height = config.height; 
} 
var camera = new OrthographicCamera(this.scene, width, height); 
this.cameras.push(camera); 
return camera; 
} 
,
addPerspectiveCamera: function (fieldOfView, width, height){ 
var config = this.scene.sys.game.config; 
if (fieldOfView === undefined) { 
fieldOfView = 80; 
} 
if (width === undefined) { 
width = config.width; 
} 
if (height === undefined) { 
height = config.height; 
} 
var camera = new PerspectiveCamera(this.scene, fieldOfView, width, height); 
this.cameras.push(camera); 
return camera; 
} 
,
getCamera: function (name){ 
for (var i = 0; 
i < (_AN_Read_length('length', this.cameras)); i++ ){ 
if (this.cameras[i].name === name) { 
return this.cameras[i]; 
} 
} 
return null ; 
} 
,
removeCamera: function (camera){ 
var cameraIndex = this.cameras.indexOf(camera); 
if (cameraIndex !== -1) { 
this.cameras.splice(cameraIndex, 1); 
} 
} 
,
removeAll: function (){ 
while ((_AN_Read_length('length', this.cameras)) > 0){ 
var camera = this.cameras.pop(); 
camera.destroy(); 
} 
return this.main; 
} 
,
update: function (timestep, delta){ 
for (var i = 0, l = _AN_Read_length('length', this.cameras); 
i < l; ++i){ 
this.cameras[i].update(timestep, delta); 
} 
} 
,
shutdown: function (){ 
var eventEmitter = this.systems.events; 
eventEmitter.off('update', this.update, this); 
eventEmitter.off('shutdown', this.shutdown, this); 
this.removeAll(); 
} 
,
destroy: function (){ 
this.shutdown(); 
this.scene.sys.events.off('start', this.start, this); 
this.scene = null ; 
this.systems = null ; 
} 
}
); 
PluginCache.register('CameraManager3D', CameraManager, 'cameras3d'); 
module.exports = CameraManager;