diff --git a/core/Base/GC.cpp b/core/Base/GC.cpp
index 69f1881b..80ac7dd7 100644
--- a/core/Base/GC.cpp
+++ b/core/Base/GC.cpp
@@ -12,6 +12,7 @@ e2d::GC::~GC()
 	Renderer::destroyInstance();
 	Input::destroyInstance();
 	Window::destroyInstance();
+	Timer::destroyInstance();
 	Player::destroyInstance();
 	SceneManager::destroyInstance();
 	ActionManager::destroyInstance();
@@ -24,7 +25,7 @@ e2d::GC::~GC()
 // 它记录了对象被使用的次数，当计数为 0 时，GC 会自动释放这个对象
 // 所有的 Object 对象都应在被使用时（例如 Text 添加到了场景中）
 // 调用 retain 函数保证该对象不被删除，并在不再使用时调用 release 函数
-void e2d::GC::__update()
+void e2d::GC::update()
 {
 	if (!_notifyed) return;
 
@@ -53,11 +54,11 @@ void e2d::GC::clear()
 	_pool.clear();
 }
 
-void e2d::GC::addObject(e2d::Object * pObject)
+void e2d::GC::addObject(e2d::Object * object)
 {
-	if (pObject)
+	if (object)
 	{
-		_pool.insert(pObject);
+		_pool.insert(object);
 	}
 }
 
@@ -70,9 +71,3 @@ void e2d::GC::notify()
 {
 	_notifyed = true;
 }
-
-void e2d::GC::flush()
-{
-	GC::notify();
-	GC::__update();
-}
diff --git a/core/Base/Game.cpp b/core/Base/Game.cpp
index ac8c46aa..16a7be8c 100644
--- a/core/Base/Game.cpp
+++ b/core/Base/Game.cpp
@@ -43,15 +43,16 @@ void e2d::Game::start(bool cleanup)
 	auto input = Input::getInstance();
 	auto window = Window::getInstance();
 	auto renderer = Renderer::getInstance();
-	auto actionManager = ActionManager::getInstance();
+	auto timer = Timer::getInstance();
 	auto sceneManager = SceneManager::getInstance();
+	auto actionManager = ActionManager::getInstance();
 
 	// 显示窗口
 	::ShowWindow(window->getHWnd(), SW_SHOWNORMAL);
 	// 刷新窗口内容
 	::UpdateWindow(window->getHWnd());
 	// 处理窗口消息
-	window->__poll();
+	window->poll();
 	// 初始化计时
 	Time::__init();
 
@@ -60,7 +61,7 @@ void e2d::Game::start(bool cleanup)
 	while (!_ended)
 	{
 		// 处理窗口消息
-		window->__poll();
+		window->poll();
 		// 刷新时间
 		Time::__updateNow();
 
@@ -73,18 +74,18 @@ void e2d::Game::start(bool cleanup)
 				_config->_update();
 			}
 
-			input->__update();			// 获取用户输入
-			Timer::__update();			// 更新定时器
-			actionManager->__update();	// 更新动作管理器
-			sceneManager->__update();	// 更新场景内容
-			renderer->__render();		// 渲染游戏画面
+			input->update();			// 获取用户输入
+			timer->update();			// 更新定时器
+			actionManager->update();	// 更新动作管理器
+			sceneManager->update();		// 更新场景内容
+			renderer->render();			// 渲染游戏画面
 
 			Time::__updateLast();		// 刷新时间信息
 		}
 		else
 		{
 			Time::__sleep();			// 挂起线程
-			gc->__update();				// 刷新内存池
+			gc->update();				// 刷新内存池
 		}
 	}
 
@@ -106,8 +107,8 @@ void e2d::Game::resume()
 	if (_paused && !_ended)
 	{
 		Time::__reset();
-		Timer::__resetAll();
-		ActionManager::getInstance()->__resetAll();
+		Timer::getInstance()->updateTime();
+		ActionManager::getInstance()->updateTime();
 	}
 	_paused = false;
 }
@@ -147,14 +148,20 @@ void e2d::Game::cleanup()
 {
 	// 删除所有场景
 	SceneManager::getInstance()->clear();
+	// 清空定时器
+	Timer::getInstance()->clearAllTasks();
+	// 清除所有动作
+	ActionManager::getInstance()->clearAll();
+	// 清除所有碰撞体
+	ColliderManager::getInstance()->clearAll();
 	// 删除碰撞监听器
-	Collision::removeAllListeners();
+	Collision::clearAllListeners();
 	// 删除输入监听器
-	Input::removeAllListeners();
+	Input::clearAllListeners();
 	// 清空图片缓存
 	Image::clearCache();
-	// 清空定时器
-	Timer::removeAll();
+	// 清空音乐缓存
+	Player::getInstance()->clearCache();
 	// 删除所有对象
 	GC::getInstance()->clear();
 }
diff --git a/core/Base/Input.cpp b/core/Base/Input.cpp
index f1c37839..e4987b88 100644
--- a/core/Base/Input.cpp
+++ b/core/Base/Input.cpp
@@ -112,7 +112,7 @@ void e2d::Input::destroyInstance()
 	}
 }
 
-void e2d::Input::__update()
+void e2d::Input::update()
 {
 	Input::__updateDeviceState();
 	Input::__updateListeners();
@@ -330,7 +330,15 @@ void e2d::Input::removeAllListeners()
 {
 	for (auto listener : s_vListeners)
 	{
-		GC::release(listener);
+		listener->_stopped = true;
+	}
+}
+
+void e2d::Input::clearAllListeners()
+{
+	for (auto listener : s_vListeners)
+	{
+		listener->release();
 	}
 	s_vListeners.clear();
 }
diff --git a/core/Base/Renderer.cpp b/core/Base/Renderer.cpp
index 27c26789..de21cd75 100644
--- a/core/Base/Renderer.cpp
+++ b/core/Base/Renderer.cpp
@@ -118,7 +118,7 @@ void e2d::Renderer::__discardDeviceResources()
 	SafeRelease(_roundStrokeStyle);
 }
 
-void e2d::Renderer::__render()
+void e2d::Renderer::render()
 {
 	HRESULT hr = S_OK;
 
@@ -131,7 +131,7 @@ void e2d::Renderer::__render()
 	_renderTarget->Clear(_clearColor);
 
 	// 渲染场景
-	SceneManager::getInstance()->__render();
+	SceneManager::getInstance()->render();
 
 	// 渲染 FPS
 	if (_showFps)
diff --git a/core/Base/Window.cpp b/core/Base/Window.cpp
index 03abca8d..5b9cdc4a 100644
--- a/core/Base/Window.cpp
+++ b/core/Base/Window.cpp
@@ -172,14 +172,12 @@ HWND e2d::Window::__create()
 	return hWnd;
 }
 
-void e2d::Window::__poll()
+void e2d::Window::poll()
 {
-	static MSG msg;
-
-	while (::PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
+	while (::PeekMessage(&_msg, nullptr, 0, 0, PM_REMOVE))
 	{
-		::TranslateMessage(&msg);
-		::DispatchMessage(&msg);
+		::TranslateMessage(&_msg);
+		::DispatchMessage(&_msg);
 	}
 }
 
@@ -429,7 +427,7 @@ LRESULT e2d::Window::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lPar
 	// 重绘窗口
 	case WM_PAINT:
 	{
-		e2d::Renderer::getInstance()->__render();
+		e2d::Renderer::getInstance()->render();
 		ValidateRect(hWnd, nullptr);
 	}
 	result = 0;
diff --git a/core/Collider/Collision.cpp b/core/Collider/Collision.cpp
index a48bfd73..86fb15b0 100644
--- a/core/Collider/Collision.cpp
+++ b/core/Collider/Collision.cpp
@@ -215,7 +215,15 @@ void e2d::Collision::removeAllListeners()
 {
 	for (auto listener : s_vListeners)
 	{
-		GC::release(listener);
+		listener->_stopped = true;
+	}
+}
+
+void e2d::Collision::clearAllListeners()
+{
+	for (auto listener : s_vListeners)
+	{
+		listener->release();
 	}
 	s_vListeners.clear();
 }
diff --git a/core/Manager/ActionManager.cpp b/core/Manager/ActionManager.cpp
index 3c46cb4f..9dc31991 100644
--- a/core/Manager/ActionManager.cpp
+++ b/core/Manager/ActionManager.cpp
@@ -29,11 +29,9 @@ e2d::ActionManager::ActionManager()
 
 e2d::ActionManager::~ActionManager()
 {
-	_actions.clear();
-	_runningActions.clear();
 }
 
-void e2d::ActionManager::__update()
+void e2d::ActionManager::update()
 {
 	if (_runningActions.empty() || Game::getInstance()->isPaused())
 		return;
@@ -213,40 +211,14 @@ void e2d::ActionManager::clearAllBindedWith(Node * target)
 	}
 }
 
-void e2d::ActionManager::resumeAll()
+void e2d::ActionManager::clearAll()
 {
-	auto scene = SceneManager::getInstance()->getCurrentScene();
-	if (scene)
+	for (auto action : _runningActions)
 	{
-		for (auto child : scene->getRoot()->getAllChildren())
-		{
-			ActionManager::resumeAllBindedWith(child);
-		}
-	}
-}
-
-void e2d::ActionManager::pauseAll()
-{
-	auto scene = SceneManager::getInstance()->getCurrentScene();
-	if (scene)
-	{
-		for (auto child : scene->getRoot()->getAllChildren())
-		{
-			ActionManager::pauseAllBindedWith(child);
-		}
-	}
-}
-
-void e2d::ActionManager::stopAll()
-{
-	auto scene = SceneManager::getInstance()->getCurrentScene();
-	if (scene)
-	{
-		for (auto child : scene->getRoot()->getAllChildren())
-		{
-			ActionManager::stopAllBindedWith(child);
-		}
+		action->release();
 	}
+	_actions.clear();
+	_runningActions.clear();
 }
 
 std::vector<e2d::Action*> e2d::ActionManager::get(const String& name)
@@ -267,7 +239,7 @@ const std::vector<e2d::Action*>& e2d::ActionManager::getAll()
 	return _actions;
 }
 
-void e2d::ActionManager::__resetAll()
+void e2d::ActionManager::updateTime()
 {
 	for (auto action : _runningActions)
 	{
diff --git a/core/Manager/ColliderManager.cpp b/core/Manager/ColliderManager.cpp
index 0e7f080b..f8206f0b 100644
--- a/core/Manager/ColliderManager.cpp
+++ b/core/Manager/ColliderManager.cpp
@@ -31,6 +31,15 @@ e2d::ColliderManager::~ColliderManager()
 {
 }
 
+void e2d::ColliderManager::clearAll()
+{
+	for (auto collder : _colliders)
+	{
+		collder->release();
+	}
+	_colliders.clear();
+}
+
 void e2d::ColliderManager::__updateCollider(e2d::Collider * pActiveCollider)
 {
 	// 判断碰撞监听是否打开
diff --git a/core/Manager/SceneManager.cpp b/core/Manager/SceneManager.cpp
index b3141739..dda827e4 100644
--- a/core/Manager/SceneManager.cpp
+++ b/core/Manager/SceneManager.cpp
@@ -115,7 +115,7 @@ bool e2d::SceneManager::isTransitioning()
 	return _transition != nullptr;
 }
 
-void e2d::SceneManager::__update()
+void e2d::SceneManager::update()
 {
 	if (_transition == nullptr)
 	{
@@ -168,7 +168,7 @@ void e2d::SceneManager::__update()
 	}
 }
 
-void e2d::SceneManager::__render()
+void e2d::SceneManager::render()
 {
 	if (_transition)
 	{
diff --git a/core/Tool/Music.cpp b/core/Tool/Music.cpp
index de34d591..8f39f70a 100644
--- a/core/Tool/Music.cpp
+++ b/core/Tool/Music.cpp
@@ -499,7 +499,7 @@ bool e2d::Music::_findMediaFileCch(wchar_t* strDestPath, int cchDest, const wcha
 	if (nullptr == strFilename || nullptr == strDestPath || cchDest < 10)
 		return false;
 
-	// Get the exe name, and exe path
+	// Get the exe _name, and exe path
 	wchar_t strExePath[MAX_PATH] = { 0 };
 	wchar_t strExeName[MAX_PATH] = { 0 };
 	wchar_t* strLastSlash = nullptr;
@@ -510,10 +510,10 @@ bool e2d::Music::_findMediaFileCch(wchar_t* strDestPath, int cchDest, const wcha
 	{
 		wcscpy_s(strExeName, MAX_PATH, &strLastSlash[1]);
 
-		// Chop the exe name from the exe path
+		// Chop the exe _name from the exe path
 		*strLastSlash = 0;
 
-		// Chop the .exe from the exe name
+		// Chop the .exe from the exe _name
 		strLastSlash = wcsrchr(strExeName, TEXT('.'));
 		if (strLastSlash)
 			*strLastSlash = 0;
@@ -523,7 +523,7 @@ bool e2d::Music::_findMediaFileCch(wchar_t* strDestPath, int cchDest, const wcha
 	if (GetFileAttributes(strDestPath) != 0xFFFFFFFF)
 		return true;
 
-	// Search all parent directories starting at .\ and using strFilename as the leaf name
+	// Search all parent directories starting at .\ and using strFilename as the leaf _name
 	wchar_t strLeafName[MAX_PATH] = { 0 };
 	wcscpy_s(strLeafName, MAX_PATH, strFilename);
 
diff --git a/core/Tool/Player.cpp b/core/Tool/Player.cpp
index 7229ca72..e9e43a48 100644
--- a/core/Tool/Player.cpp
+++ b/core/Tool/Player.cpp
@@ -221,6 +221,11 @@ void e2d::Player::setVolume(double volume)
 	{
 		pair.second->setVolume(_volume);
 	}
+
+	for (auto pair : _resList)
+	{
+		pair.second->setVolume(_volume);
+	}
 }
 
 void e2d::Player::pauseAll()
@@ -229,6 +234,11 @@ void e2d::Player::pauseAll()
 	{
 		pair.second->pause();
 	}
+
+	for (auto pair : _resList)
+	{
+		pair.second->pause();
+	}
 }
 
 void e2d::Player::resumeAll()
@@ -237,6 +247,11 @@ void e2d::Player::resumeAll()
 	{
 		pair.second->resume();
 	}
+
+	for (auto pair : _resList)
+	{
+		pair.second->resume();
+	}
 }
 
 void e2d::Player::stopAll()
@@ -245,4 +260,24 @@ void e2d::Player::stopAll()
 	{
 		pair.second->stop();
 	}
+
+	for (auto pair : _resList)
+	{
+		pair.second->stop();
+	}
+}
+
+void e2d::Player::clearCache()
+{
+	for (auto pair : _fileList)
+	{
+		delete pair.second;
+	}
+	_fileList.clear();
+
+	for (auto pair : _resList)
+	{
+		delete pair.second;
+	}
+	_resList.clear();
 }
diff --git a/core/Tool/Task.cpp b/core/Tool/Task.cpp
new file mode 100644
index 00000000..09de625b
--- /dev/null
+++ b/core/Tool/Task.cpp
@@ -0,0 +1,84 @@
+#include "..\e2dtool.h"
+
+
+e2d::Task::Task(const Function & func, const String & name)
+	: _running(true)
+	, _stopped(false)
+	, _runTimes(0)
+	, _totalTimes(-1)
+	, _delay(0.0)
+	, _lastTime(0.0)
+	, _callback(func)
+	, _name(name)
+{
+}
+
+e2d::Task::Task(const Function & func, double delay, int times, const String & name)
+	: _running(true)
+	, _stopped(false)
+	, _runTimes(0)
+	, _totalTimes(times)
+	, _delay(std::max(delay, 0.0))
+	, _lastTime(0.0)
+	, _callback(func)
+	, _name(name)
+{
+}
+
+void e2d::Task::pause()
+{
+	_running = false;
+}
+
+void e2d::Task::resume()
+{
+	_running = true;
+	updateTime();
+}
+
+void e2d::Task::update()
+{
+	if (_callback)
+	{
+		_callback();
+	}
+
+	++_runTimes;
+	_lastTime += _delay;
+
+	if (_runTimes == _totalTimes)
+	{
+		_stopped = true;
+	}
+}
+
+bool e2d::Task::isReady() const
+{
+	if (_running)
+	{
+		if (_delay == 0)
+		{
+			return true;
+		}
+		if ((Time::getTotalTime() - _lastTime) >= _delay)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+bool e2d::Task::isRunning() const
+{
+	return _running;
+}
+
+e2d::String e2d::Task::getName() const
+{
+	return _name;
+}
+
+void e2d::Task::updateTime()
+{
+	_lastTime = Time::getTotalTime();
+}
\ No newline at end of file
diff --git a/core/Tool/Timer.cpp b/core/Tool/Timer.cpp
index 9b3b5593..f526f6df 100644
--- a/core/Tool/Timer.cpp
+++ b/core/Tool/Timer.cpp
@@ -1,168 +1,132 @@
 #include "..\e2dtool.h"
-#include "..\e2dnode.h"
 
-namespace e2d
+e2d::Timer * e2d::Timer::_instance = nullptr;
+
+e2d::Timer * e2d::Timer::getInstance()
 {
-	class TimerEntity
+	if (!_instance)
+		_instance = new (std::nothrow) Timer;
+	return _instance;
+}
+
+void e2d::Timer::destroyInstance()
+{
+	if (_instance)
 	{
-	public:
-		explicit TimerEntity(
-			const e2d::Function& func,
-			const e2d::String& name,
-			double delay,
-			int updateTimes,
-			bool paused
-		)
-			: running(!paused)
-			, stopped(false)
-			, runTimes(0)
-			, totalTimes(updateTimes)
-			, delay(std::max(delay, 0.0))
-			, lastTime(e2d::Time::getTotalTime())
-			, callback(func)
-			, name(name)
-		{
-		}
-
-		void update()
-		{
-			if (callback)
-			{
-				callback();
-			}
-
-			++runTimes;
-			lastTime += delay;
-
-			if (runTimes == totalTimes)
-			{
-				stopped = true;
-			}
-		}
-
-		bool ready()
-		{
-			if (this->running)
-			{
-				if (this->delay == 0)
-					return true;
-
-				if ((e2d::Time::getTotalTime() - this->lastTime) >= this->delay)
-					return true;
-			}
-			return false;
-		}
-
-	public:
-		bool	running;
-		bool	stopped;
-		int		runTimes;
-		int		totalTimes;
-		double	delay;
-		double	lastTime;
-		e2d::String		name;
-		e2d::Function	callback;
-	};
+		delete _instance;
+		_instance = nullptr;
+	}
 }
 
-static std::vector<e2d::TimerEntity*> s_vTimers;
-
-
-void e2d::Timer::add(const Function& func, double delay, int updateTimes, bool paused, const String& name)
+e2d::Timer::Timer()
+	: _tasks()
 {
-	auto timer = new (std::nothrow) TimerEntity(func, name, delay, updateTimes, paused);
-	s_vTimers.push_back(timer);
 }
 
-void e2d::Timer::add(const Function& func, const String& name)
+e2d::Timer::~Timer()
 {
-	Timer::add(func, 0, -1, false, name);
 }
 
-void e2d::Timer::start(double timeout, const Function& func)
+void e2d::Timer::addTask(Task * task)
 {
-	auto timer = new (std::nothrow) TimerEntity(func, L"", timeout, 1, false);
-	s_vTimers.push_back(timer);
-}
-
-void e2d::Timer::stop(const String& name)
-{
-	for (auto timer : s_vTimers)
+	if (task)
 	{
-		if (timer->name == name)
+		auto iter = std::find(_tasks.begin(), _tasks.end(), task);
+		if (iter == _tasks.end())
 		{
-			timer->running = false;
+			task->retain();
+			task->updateTime();
+			_tasks.push_back(task);
 		}
 	}
 }
 
-void e2d::Timer::start(const String& name)
+void e2d::Timer::pauseTasks(const String& name)
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		if (timer->name == name)
+		if (task->getName() == name)
 		{
-			timer->running = true;
+			task->pause();
 		}
 	}
 }
 
-void e2d::Timer::remove(const String& name)
+void e2d::Timer::resumeTasks(const String& name)
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		if (timer->name == name)
+		if (task->getName() == name)
 		{
-			timer->stopped = true;
+			task->resume();
 		}
 	}
 }
 
-void e2d::Timer::stopAll()
+void e2d::Timer::removeTasks(const String& name)
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		timer->running = false;
+		if (task->getName() == name)
+		{
+			task->_stopped = true;
+		}
 	}
 }
 
-void e2d::Timer::startAll()
+void e2d::Timer::pauseAllTasks()
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		timer->running = true;
+		task->pause();
 	}
 }
 
-void e2d::Timer::removeAll()
+void e2d::Timer::resumeAllTasks()
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		delete timer;
+		task->resume();
 	}
-	s_vTimers.clear();
 }
 
-void e2d::Timer::__update()
+void e2d::Timer::removeAllTasks()
 {
-	if (s_vTimers.empty() || Game::getInstance()->isPaused())
+	for (auto task : _tasks)
+	{
+		task->_stopped = true;
+	}
+}
+
+void e2d::Timer::clearAllTasks()
+{
+	for (auto task : _tasks)
+	{
+		task->release();
+	}
+	_tasks.clear();
+}
+
+void e2d::Timer::update()
+{
+	if (_tasks.empty() || Game::getInstance()->isPaused())
 		return;
 
-	for (size_t i = 0; i < s_vTimers.size();)
+	for (size_t i = 0; i < _tasks.size();)
 	{
-		auto timer = s_vTimers[i];
-		// 清除已停止的定时器
-		if (timer->stopped)
+		auto task = _tasks[i];
+		// 清除已停止的任务
+		if (task->_stopped)
 		{
-			delete timer;
-			s_vTimers.erase(s_vTimers.begin() + i);
+			task->release();
+			_tasks.erase(_tasks.begin() + i);
 		}
 		else
 		{
 			// 更新定时器
-			if (timer->ready())
+			if (task->isReady())
 			{
-				timer->update();
+				task->update();
 			}
 
 			++i;
@@ -170,10 +134,10 @@ void e2d::Timer::__update()
 	}
 }
 
-void e2d::Timer::__resetAll()
+void e2d::Timer::updateTime()
 {
-	for (auto timer : s_vTimers)
+	for (auto task : _tasks)
 	{
-		timer->lastTime = Time::getTotalTime();
+		task->updateTime();
 	}
 }
diff --git a/core/e2dbase.h b/core/e2dbase.h
index 30e8cd80..245ce58a 100644
--- a/core/e2dbase.h
+++ b/core/e2dbase.h
@@ -67,8 +67,6 @@ private:
 // 窗口控制
 class Window
 {
-	friend class Game;
-
 public:
 	// 鼠标指针样式
 	enum class Cursor : int
@@ -156,6 +154,9 @@ public:
 		const String& title = L"Error"		/* 窗口标题 */
 	);
 
+	// 处理窗口消息
+	void poll();
+
 private:
 	Window();
 
@@ -166,9 +167,6 @@ private:
 	// 注册窗口
 	HWND __create();
 
-	// 处理窗口消息
-	void __poll();
-
 	// Win32 窗口消息回调程序
 	static LRESULT CALLBACK WndProc(
 		HWND hWnd, 
@@ -179,6 +177,7 @@ private:
 
 private:
 	HWND	_hWnd;
+	MSG		_msg;
 	Size	_size;
 	String	_title;
 	int		_iconID;
@@ -232,8 +231,6 @@ class Listener;
 // 输入设备
 class Input
 {
-	friend class Game;
-
 public:
 	// 鼠标键值
 	enum class Mouse : int
@@ -243,7 +240,6 @@ public:
 		Middle		/* 鼠标中键 */
 	};
 
-
 	// 键盘键值
 	enum class Key : int
 	{
@@ -357,6 +353,9 @@ public:
 	// 获得鼠标Z轴（鼠标滚轮）坐标增量
 	double getMouseDeltaZ();
 
+	// 刷新输入设备状态
+	void update();
+
 	// 添加输入监听
 	static Listener * addListener(
 		const Function& func,		/* 监听到用户输入时的执行函数 */
@@ -398,6 +397,9 @@ public:
 	// 移除所有监听器
 	static void removeAllListeners();
 
+	// 强制清空所有监听器
+	static void clearAllListeners();
+
 private:
 	Input();
 
@@ -405,9 +407,6 @@ private:
 
 	E2D_DISABLE_COPY(Input);
 
-	// 刷新输入信息
-	void __update();
-
 	// 刷新设备状态
 	void __updateDeviceState();
 
@@ -429,9 +428,6 @@ private:
 // 渲染器
 class Renderer
 {
-	friend class Game;
-	friend class Window;
-
 public:
 	// 获取渲染器实例
 	static Renderer * getInstance();
@@ -452,6 +448,9 @@ public:
 		bool show = true
 	);
 
+	// 渲染游戏画面
+	void render();
+
 	// 获取文字渲染器
 	TextRenderer * getTextRenderer();
 
@@ -489,9 +488,6 @@ private:
 
 	E2D_DISABLE_COPY(Renderer);
 
-	// 渲染游戏画面
-	void __render();
-
 	// 创建设备相关资源
 	bool __createDeviceResources();
 
@@ -516,7 +512,7 @@ private:
 };
 
 
-// 垃圾回收装置
+// 垃圾回收器
 class GC
 {
 	friend class Game;
@@ -549,14 +545,14 @@ public:
 	// 通知 GC 回收垃圾内存
 	void notify();
 
-	// 手动回收垃圾内存
-	void flush();
-
-	// 将对象放入 GC
+	// 将对象放入释放池
 	void addObject(
-		Object * pObject
+		Object * object
 	);
 
+	// 更新垃圾回收器状态
+	void update();
+
 	// 清空所有对象
 	void clear();
 
@@ -567,9 +563,6 @@ private:
 
 	E2D_DISABLE_COPY(GC);
 
-	// 更新 GC
-	void __update();
-
 private:
 	bool				_notifyed;
 	std::set<Object*>	_pool;
diff --git a/core/e2dcollider.h b/core/e2dcollider.h
index 80cd0b66..7408b00b 100644
--- a/core/e2dcollider.h
+++ b/core/e2dcollider.h
@@ -109,6 +109,9 @@ public:
 	// 移除所有监听器
 	static void removeAllListeners();
 
+	// 强制清除所有监听器
+	static void clearAllListeners();
+
 private:
 	// 更新监听器
 	static void __update(
diff --git a/core/e2dmanager.h b/core/e2dmanager.h
index 2f41fd3a..5ecc1969 100644
--- a/core/e2dmanager.h
+++ b/core/e2dmanager.h
@@ -9,7 +9,7 @@ class Game;
 class Input;
 class Renderer;
 class Node;
-class Timer;
+class Task;
 class Action;
 class Player;
 class Collider;
@@ -19,9 +19,6 @@ class Transition;
 // 场景管理器
 class SceneManager
 {
-	friend class Game;
-	friend class Renderer;
-
 public:
 	// 获取场景管理器实例
 	static SceneManager * getInstance();
@@ -53,6 +50,12 @@ public:
 	// 是否正在进行转场动作
 	bool isTransitioning();
 
+	// 更新场景内容
+	void update();
+
+	// 渲染场景画面
+	void render();
+
 private:
 	SceneManager();
 
@@ -60,12 +63,6 @@ private:
 
 	E2D_DISABLE_COPY(SceneManager);
 
-	// 更新场景内容
-	void __update();
-
-	// 渲染场景画面
-	void __render();
-
 private:
 	bool				_saveCurrScene;
 	Scene *				_currScene;
@@ -80,7 +77,6 @@ private:
 // 动作管理器
 class ActionManager
 {
-	friend class Game;
 	friend class Action;
 
 public:
@@ -120,15 +116,6 @@ public:
 		const String& name
 	);
 
-	// 继续所有动作
-	void resumeAll();
-
-	// 暂停所有动作
-	void pauseAll();
-
-	// 停止所有动作
-	void stopAll();
-
 	// 继续绑定在节点上的所有动作
 	void resumeAllBindedWith(
 		Node * target
@@ -144,11 +131,20 @@ public:
 		Node * target
 	);
 
-	// 清空绑定在节点上的所有动作
+	// 强制清除绑定在节点上的所有动作
 	void clearAllBindedWith(
 		Node * target
 	);
 
+	// 强制清除所有动作
+	void clearAll();
+
+	// 更新动作管理器状态
+	void update();
+
+	// 刷新所有动作计时
+	void updateTime();
+
 private:
 	ActionManager();
 
@@ -156,9 +152,6 @@ private:
 
 	E2D_DISABLE_COPY(ActionManager);
 
-	// 更新动作状态
-	void __update();
-
 	// 添加动作
 	void __add(
 		Action * action
@@ -169,9 +162,6 @@ private:
 		Action * action
 	);
 
-	// 重置所有动作状态
-	void __resetAll();
-
 private:
 	std::vector<Action*> _actions;
 	std::vector<Action*> _runningActions;
@@ -193,6 +183,9 @@ public:
 	// 销毁实例
 	static void destroyInstance();
 
+	// 强制清除所有碰撞体
+	void clearAll();
+
 private:
 	ColliderManager();
 
diff --git a/core/e2dtool.h b/core/e2dtool.h
index 7714f090..5e41a830 100644
--- a/core/e2dtool.h
+++ b/core/e2dtool.h
@@ -246,6 +246,9 @@ public:
 	// 停止所有音乐
 	void stopAll();
 
+	// 清空音乐缓存
+	void clearCache();
+
 	// 获取 IXAudio2 对象
 	IXAudio2 * getXAudio2();
 
@@ -267,63 +270,119 @@ private:
 };
 
 
-// 定时器
-class Timer
+class Timer;
+
+// 定时任务
+class Task :
+	public Object
 {
-	friend class Game;
+	friend class Timer;
 
 public:
-	// 添加定时器（每帧执行一次）
-	static void add(
+	explicit Task(
 		const Function& func,		/* 执行函数 */
 		const String& name = L""	/* 定时器名称 */
 	);
 
-	// 添加定时器
-	static void add(
+	explicit Task(
 		const Function& func,		/* 执行函数 */
 		double delay,				/* 时间间隔（秒） */
 		int times = -1,				/* 执行次数（设 -1 为永久执行） */
-		bool paused = false,		/* 是否暂停 */
 		const String& name = L""	/* 定时器名称 */
 	);
 
-	// 在足够延迟后执行指定函数
-	static void start(
-		double timeout,				/* 等待的时长（秒） */
-		const Function& func		/* 执行的函数 */
-	);
+	// 暂停任务
+	void pause();
 
-	// 启动具有相同名称的定时器
-	static void start(
-		const String& name
-	);
+	// 继续任务
+	void resume();
 
-	// 停止具有相同名称的定时器
-	static void stop(
-		const String& name
-	);
+	// 任务是否就绪
+	bool isReady() const;
 
-	// 移除具有相同名称的定时器
-	static void remove(
-		const String& name
-	);
+	// 任务是否正在执行
+	bool isRunning() const;
 
-	// 启动所有定时器
-	static void startAll();
+	// 获取任务名称
+	String getName() const;
 
-	// 停止所有定时器
-	static void stopAll();
+	// 执行任务
+	void update();
 
-	// 移除所有定时器
-	static void removeAll();
+	// 刷新任务计时
+	void updateTime();
 
 private:
-	// 更新定时器
-	static void __update();
+	bool		_running;
+	bool		_stopped;
+	int			_runTimes;
+	int			_totalTimes;
+	double		_delay;
+	double		_lastTime;
+	String		_name;
+	Function	_callback;
+};
 
-	// 重置定时器状态
-	static void __resetAll();
+
+// 定时器
+class Timer
+{
+public:
+	// 获取定时器实例
+	static Timer * getInstance();
+
+	// 销毁实例
+	static void destroyInstance();
+
+	// 添加任务
+	void addTask(
+		Task * task
+	);
+
+	// 继续具有相同名称的任务
+	void resumeTasks(
+		const String& name
+	);
+
+	// 暂停具有相同名称的任务
+	void pauseTasks(
+		const String& name
+	);
+
+	// 移除具有相同名称的任务
+	void removeTasks(
+		const String& name
+	);
+
+	// 继续所有任务
+	void resumeAllTasks();
+
+	// 暂停所有任务
+	void pauseAllTasks();
+
+	// 移除所有任务
+	void removeAllTasks();
+
+	// 强制清空所有任务
+	void clearAllTasks();
+
+	// 更新定时器
+	void update();
+
+	// 刷新所有任务计时
+	void updateTime();
+
+private:
+	Timer();
+
+	~Timer();
+
+	E2D_DISABLE_COPY(Timer);
+
+private:
+	std::vector<Task*> _tasks;
+
+	static Timer * _instance;
 };
 
 
diff --git a/project/vs2017/Easy2D.vcxproj b/project/vs2017/Easy2D.vcxproj
index df33c02a..1422e230 100644
--- a/project/vs2017/Easy2D.vcxproj
+++ b/project/vs2017/Easy2D.vcxproj
@@ -258,6 +258,7 @@
     <ClCompile Include="..\..\core\Tool\Path.cpp" />
     <ClCompile Include="..\..\core\Tool\Player.cpp" />
     <ClCompile Include="..\..\core\Tool\Random.cpp" />
+    <ClCompile Include="..\..\core\Tool\Task.cpp" />
     <ClCompile Include="..\..\core\Tool\Timer.cpp" />
     <ClCompile Include="..\..\core\Transition\Transition.cpp" />
     <ClCompile Include="..\..\core\Transition\BoxTransition.cpp" />
diff --git a/project/vs2017/Easy2D.vcxproj.filters b/project/vs2017/Easy2D.vcxproj.filters
index 9e24729d..8081ffab 100644
--- a/project/vs2017/Easy2D.vcxproj.filters
+++ b/project/vs2017/Easy2D.vcxproj.filters
@@ -237,6 +237,9 @@
     <ClCompile Include="..\..\core\Common\Collider.cpp">
       <Filter>Common</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\core\Tool\Task.cpp">
+      <Filter>Tool</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\core\easy2d.h" />