Phaser.PluginManager = function (game){ 
this.game = game; 
this.plugins = [] ; 
this._len = 0; 
this._i = 0; 
} 
; 
Phaser.PluginManager.prototype = { 
add: function (plugin){ 
var args = Array.prototype.splice.call(arguments, 1); 
var result = false ; 
if (typeof plugin === 'function') { 
plugin = new plugin(this.game, this); 
} 
 else { 
plugin.game = this.game; 
plugin.parent = this; 
} 
if (typeof plugin.preUpdate === 'function') { 
plugin.hasPreUpdate = true ; 
result = true ; 
} 
if (typeof plugin.update === 'function') { 
plugin.hasUpdate = true ; 
result = true ; 
} 
if (typeof plugin.postUpdate === 'function') { 
plugin.hasPostUpdate = true ; 
result = true ; 
} 
if (typeof plugin.render === 'function') { 
plugin.hasRender = true ; 
result = true ; 
} 
if (typeof plugin.postRender === 'function') { 
plugin.hasPostRender = true ; 
result = true ; 
} 
if (result) { 
if (plugin.hasPreUpdate || plugin.hasUpdate || plugin.hasPostUpdate) { 
plugin.active = true ; 
} 
if (plugin.hasRender || plugin.hasPostRender) { 
plugin.visible = true ; 
} 
this._len = this.plugins.push(plugin); 
if (typeof plugin.init === 'function') { 
plugin.init.apply(plugin, args); 
} 
return plugin; 
} 
 else { 
return null ; 
} 
} 
,
remove: function (plugin){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i] === plugin) { 
plugin.destroy(); 
this.plugins.splice(this._i, 1); 
this._len-- ; 
return ; 
} 
} 
} 
,
removeAll: function (){ 
this._i = this._len; 
while (this._i-- ){ 
this.plugins[this._i].destroy(); 
} 
this.plugins.length = 0; 
this._len = 0; 
} 
,
preUpdate: function (){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i].active && this.plugins[this._i].hasPreUpdate) { 
this.plugins[this._i].preUpdate(); 
} 
} 
} 
,
update: function (){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i].active && this.plugins[this._i].hasUpdate) { 
this.plugins[this._i].update(); 
} 
} 
} 
,
postUpdate: function (){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i].active && this.plugins[this._i].hasPostUpdate) { 
this.plugins[this._i].postUpdate(); 
} 
} 
} 
,
render: function (){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i].visible && this.plugins[this._i].hasRender) { 
this.plugins[this._i].render(); 
} 
} 
} 
,
postRender: function (){ 
this._i = this._len; 
while (this._i-- ){ 
if (this.plugins[this._i].visible && this.plugins[this._i].hasPostRender) { 
this.plugins[this._i].postRender(); 
} 
} 
} 
,
destroy: function (){ 
this.removeAll(); 
this.game = null ; 
} 
}
; 
Phaser.PluginManager.prototype.constructor = Phaser.PluginManager;