diff --git a/src/core/Application.cpp b/src/core/Application.cpp
index a26529df..9a694fad 100644
--- a/src/core/Application.cpp
+++ b/src/core/Application.cpp
@@ -28,6 +28,7 @@
 #include "Transition.h"
 #include <windowsx.h>
 #include <imm.h>
+#include <iostream>
 
 #pragma comment (lib ,"imm32.lib")
 
@@ -53,6 +54,40 @@ namespace easy2d
 	{
 		debug_ = options.debug;
 
+		// show console if debug mode enabled
+		HWND console = ::GetConsoleWindow();
+		if (debug_ && !console)
+		{
+			if (::AllocConsole())
+			{
+				console = ::GetConsoleWindow();
+				FILE * dummy;
+				freopen_s(&dummy, "CONOUT$", "w+t", stdout);
+				freopen_s(&dummy, "CONIN$", "r+t", stdin);
+				freopen_s(&dummy, "CONOUT$", "w+t", stderr);
+				(void)dummy;
+
+				std::cout.clear();
+				std::wcout.clear();
+				std::cin.clear();
+				std::wcin.clear();
+				std::cerr.clear();
+				std::wcerr.clear();
+			}
+		}
+		else if (!debug_ && console)
+		{
+			::ShowWindow(console, SW_HIDE);
+			console = nullptr;
+		}
+
+		// disable the close button of console
+		if (console)
+		{
+			HMENU hmenu = ::GetSystemMenu(console, FALSE);
+			::RemoveMenu(hmenu, SC_CLOSE, MF_BYCOMMAND);
+		}
+
 		ThrowIfFailed(
 			Factory::Instance()->Init(debug_)
 		);
@@ -95,31 +130,6 @@ namespace easy2d
 		// disable imm
 		::ImmAssociateContext(hwnd, nullptr);
 
-		// show console if debug mode enabled
-		HWND console = ::GetConsoleWindow();
-		if (debug_ && !console)
-		{
-			if (::AllocConsole())
-			{
-				console = ::GetConsoleWindow();
-				FILE * stdoutStream, *stdinStream, *stderrStream;
-				freopen_s(&stdoutStream, "conout$", "w+t", stdout);
-				freopen_s(&stdinStream, "conin$", "r+t", stdin);
-				freopen_s(&stderrStream, "conout$", "w+t", stderr);
-			}
-		}
-		else if (!debug_ && console)
-		{
-			::ShowWindow(console, SW_HIDE);
-		}
-
-		// disable the close button of console
-		if (console)
-		{
-			HMENU hmenu = ::GetSystemMenu(console, FALSE);
-			::RemoveMenu(hmenu, SC_CLOSE, MF_BYCOMMAND);
-		}
-
 		// use Application instance in message loop
 		::SetWindowLongPtr(hwnd, GWLP_USERDATA, PtrToUlong(this));
 	}
@@ -189,8 +199,6 @@ namespace easy2d
 		const auto dt = (now - last) * time_scale_;
 		last = now;
 
-		Input::Instance()->Update();
-
 		if (transition_)
 		{
 			transition_->Update(dt);
@@ -262,6 +270,8 @@ namespace easy2d
 		{
 			app->Update();
 			app->Render(hwnd);
+
+			Input::Instance()->Update();
 			return 0;
 		}
 		break;
@@ -269,6 +279,8 @@ namespace easy2d
 		case WM_KEYDOWN:
 		case WM_KEYUP:
 		{
+			Input::Instance()->UpdateKey((int)wparam, (msg == WM_KEYDOWN) ? true : false);
+
 			if (!app->transition_ && app->curr_scene_)
 			{
 				Event evt((msg == WM_KEYDOWN) ? KeyboardEvent::Down : KeyboardEvent::Up);
@@ -292,6 +304,10 @@ namespace easy2d
 		case WM_MOUSEMOVE:
 		case WM_MOUSEWHEEL:
 		{
+			if		(msg == WM_LBUTTONDOWN || msg == WM_LBUTTONUP) { Input::Instance()->UpdateKey(VK_LBUTTON, (msg == WM_LBUTTONDOWN) ? true : false); }
+			else if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONUP) { Input::Instance()->UpdateKey(VK_RBUTTON, (msg == WM_RBUTTONDOWN) ? true : false); }
+			else if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONUP) { Input::Instance()->UpdateKey(VK_MBUTTON, (msg == WM_MBUTTONDOWN) ? true : false); }
+
 			if (!app->transition_ && app->curr_scene_)
 			{
 				Event evt;
@@ -301,24 +317,14 @@ namespace easy2d
 				evt.mouse.left_btn_down = !!(wparam & MK_LBUTTON);
 				evt.mouse.left_btn_down = !!(wparam & MK_RBUTTON);
 
-				if (msg == WM_MOUSEMOVE)
-					evt.type = MouseEvent::Move;
-				else if (msg == WM_LBUTTONDOWN || msg == WM_RBUTTONDOWN || msg == WM_MBUTTONDOWN)
-					evt.type = MouseEvent::Down;
-				else if (msg == WM_LBUTTONUP || msg == WM_RBUTTONUP || msg == WM_MBUTTONUP)
-					evt.type = MouseEvent::Up;
-				else
-				{
-					evt.type = MouseEvent::Wheel;
-					evt.mouse.wheel_delta = GET_WHEEL_DELTA_WPARAM(wparam) / 120.f;
-				}
+				if		(msg == WM_MOUSEMOVE) { evt.type = MouseEvent::Move; }
+				else if (msg == WM_LBUTTONDOWN || msg == WM_RBUTTONDOWN || msg == WM_MBUTTONDOWN) { evt.type = MouseEvent::Down; }
+				else if (msg == WM_LBUTTONUP   || msg == WM_RBUTTONUP   || msg == WM_MBUTTONUP) { evt.type = MouseEvent::Up; }
+				else if (msg == WM_MOUSEWHEEL) { evt.type = MouseEvent::Wheel; evt.mouse.wheel = GET_WHEEL_DELTA_WPARAM(wparam) / (float)WHEEL_DELTA; }
 
-				if (msg == WM_LBUTTONDOWN || msg == WM_LBUTTONUP)
-					evt.mouse.button = MouseButton::Left;
-				else if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONUP)
-					evt.mouse.button = MouseButton::Right;
-				else if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONUP)
-					evt.mouse.button = MouseButton::Middle;
+				if		(msg == WM_LBUTTONDOWN || msg == WM_LBUTTONUP) { evt.mouse.button = MouseButton::Left; }
+				else if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONUP) { evt.mouse.button = MouseButton::Right; }
+				else if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONUP) { evt.mouse.button = MouseButton::Middle; }
 
 				app->curr_scene_->Dispatch(evt);
 			}
diff --git a/src/core/Application.h b/src/core/Application.h
index 8e388a48..8a8f1512 100644
--- a/src/core/Application.h
+++ b/src/core/Application.h
@@ -62,7 +62,7 @@ namespace easy2d
 
 		// 初始化
 		void Init(
-			Options const& options
+			Options const& options = Options{}
 		);
 
 		// 启动时
diff --git a/src/core/Event.hpp b/src/core/Event.hpp
index 3eaf7331..461f89f8 100644
--- a/src/core/Event.hpp
+++ b/src/core/Event.hpp
@@ -57,7 +57,7 @@ namespace easy2d
 
 		struct
 		{
-			float wheel_delta;	// 仅当消息类型为 Wheel 时有效
+			float wheel;	// 仅当消息类型为 Wheel 时有效
 		};
 
 		static inline bool Check(EventType type)
diff --git a/src/core/Input.cpp b/src/core/Input.cpp
index c421c080..748d9b55 100644
--- a/src/core/Input.cpp
+++ b/src/core/Input.cpp
@@ -26,9 +26,11 @@ namespace easy2d
 {
 	Input::Input()
 		: hwnd_(nullptr)
+		, want_update_(false)
 	{
 		ZeroMemory(keys_, sizeof(keys_));
-		ZeroMemory(keys_cache_, sizeof(keys_cache_));
+		ZeroMemory(keys_pressed_, sizeof(keys_pressed_));
+		ZeroMemory(keys_released_, sizeof(keys_released_));
 	}
 
 	Input::~Input()
@@ -47,42 +49,55 @@ namespace easy2d
 
 	void Input::Update()
 	{
-		memcpy(keys_cache_, keys_, sizeof(keys_cache_));
-		::GetKeyboardState(keys_);
+		if (want_update_)
+		{
+			want_update_ = false;
+
+			ZeroMemory(keys_pressed_, sizeof(keys_pressed_));
+			ZeroMemory(keys_released_, sizeof(keys_released_));
+		}
+	}
+
+	void Input::UpdateKey(int key, bool down)
+	{
+		if (down && !keys_[key])
+			keys_pressed_[key] = true;
+		if (!down && keys_[key])
+			keys_released_[key] = true;
+
+		keys_[key] = down;
+
+		want_update_ = true;
 	}
 
 	bool Input::IsDown(KeyCode code)
 	{
-		return !!(keys_[static_cast<int>(code)] & 0x80);
+		return keys_[static_cast<int>(code)];
 	}
 
 	bool Input::IsDown(MouseButton btn)
 	{
-		return !!(keys_[static_cast<int>(btn)] & 0x80);
+		return keys_[static_cast<int>(btn)];
 	}
 
 	bool Input::WasPressed(KeyCode code)
 	{
-		return !(keys_cache_[static_cast<int>(code)] & 0x80)
-			&& (keys_[static_cast<int>(code)] & 0x80);
+		return keys_pressed_[static_cast<int>(code)];
 	}
 
 	bool Input::WasPressed(MouseButton btn)
 	{
-		return !(keys_cache_[static_cast<int>(btn)] & 0x80)
-			&& (keys_[static_cast<int>(btn)] & 0x80);
+		return keys_pressed_[static_cast<int>(btn)];
 	}
 
 	bool Input::WasReleased(KeyCode code)
 	{
-		return (keys_cache_[static_cast<int>(code)] & 0x80)
-			&& !(keys_[static_cast<int>(code)] & 0x80);
+		return keys_released_[static_cast<int>(code)];
 	}
 
 	bool Input::WasReleased(MouseButton btn)
 	{
-		return (keys_cache_[static_cast<int>(btn)] & 0x80)
-			&& !(keys_[static_cast<int>(btn)] & 0x80);
+		return keys_released_[static_cast<int>(btn)];
 	}
 
 	float Input::GetMouseX()
@@ -97,9 +112,16 @@ namespace easy2d
 
 	Point Input::GetMousePos()
 	{
-		POINT pos;
-		::GetCursorPos(&pos);
-		::ScreenToClient(hwnd_, &pos);
-		return Point{ static_cast<float>(pos.x), static_cast<float>(pos.y) };
+		Point mouse_pos = Point{};
+		if (HWND active_window = ::GetForegroundWindow())
+		{
+			if (active_window == hwnd_ || ::IsChild(active_window, hwnd_))
+			{
+				POINT pos;
+				if (::GetCursorPos(&pos) && ::ScreenToClient(hwnd_, &pos))
+					mouse_pos = Point((float)pos.x, (float)pos.y);
+			}
+		}
+		return mouse_pos;
 	}
 }
\ No newline at end of file
diff --git a/src/core/Input.h b/src/core/Input.h
index 96cb7e79..67df496a 100644
--- a/src/core/Input.h
+++ b/src/core/Input.h
@@ -31,8 +31,6 @@ namespace easy2d
 		E2D_DECLARE_SINGLETON(Input);
 
 	public:
-		HRESULT Init(HWND hwnd, bool debug);
-
 		// 检测键盘按键是否正被按下
 		bool IsDown(
 			KeyCode code
@@ -72,16 +70,22 @@ namespace easy2d
 		// 获得鼠标坐标
 		Point GetMousePos();
 
+		HRESULT Init(HWND hwnd, bool debug);
+
 		void Update();
 
+		void UpdateKey(int, bool);
+
 	protected:
 		Input();
 
 		~Input();
 
 	protected:
-		HWND	hwnd_;
-		BYTE	keys_[256];
-		BYTE	keys_cache_[256];
+		HWND hwnd_;
+		bool want_update_;
+		bool keys_[256];
+		bool keys_pressed_[256];
+		bool keys_released_[256];
 	};
 }
diff --git a/src/core/Node.h b/src/core/Node.h
index 547320e4..ed9ac65a 100644
--- a/src/core/Node.h
+++ b/src/core/Node.h
@@ -124,7 +124,7 @@ namespace easy2d
 		// 获取变换
 		Transform const& GetTransform()	const	{ return transform_; }
 
-		// 获取包围盒
+		// 获取边框
 		Rect GetBounds() const;
 
 		// 获取外切包围盒
diff --git a/src/core/logs.cpp b/src/core/logs.cpp
index cf80ea84..3fe6607f 100644
--- a/src/core/logs.cpp
+++ b/src/core/logs.cpp
@@ -33,35 +33,47 @@ namespace easy2d
 
 		namespace color
 		{
-			const wchar_t _reset[] = L"\x1b[0m";
+			const WORD _blue = FOREGROUND_BLUE | FOREGROUND_INTENSITY;
+			const WORD _green = FOREGROUND_GREEN | FOREGROUND_INTENSITY;
+			const WORD _red = FOREGROUND_RED | FOREGROUND_INTENSITY;
+			const WORD _yellow = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY;
+			const WORD _white = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY;
 
-			const wchar_t _black[] = L"\x1b[30m";
-			const wchar_t _red[] = L"\x1b[31m";
-			const wchar_t _green[] = L"\x1b[32m";
-			const wchar_t _yellow[] = L"\x1b[33m";
-			const wchar_t _blue[] = L"\x1b[34m";
-			const wchar_t _white[] = L"\x1b[37m";
+			const WORD _blue_bg = _white | BACKGROUND_BLUE | BACKGROUND_INTENSITY;
+			const WORD _green_bg = _white | BACKGROUND_GREEN | BACKGROUND_INTENSITY;
+			const WORD _red_bg = _white | BACKGROUND_RED | BACKGROUND_INTENSITY;
+			const WORD _yellow_bg = BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY;
+			const WORD _white_bg = BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY;
+
+			const WORD _reset = _white;
 
-			const wchar_t _black_bg[] = L"\x1b[40m";
-			const wchar_t _red_bg[] = L"\x1b[41m";
-			const wchar_t _green_bg[] = L"\x1b[42m";
-			const wchar_t _yellow_bg[] = L"\x1b[43m";
-			const wchar_t _blue_bg[] = L"\x1b[44m";
-			const wchar_t _white_bg[] = L"\x1b[47m";
 
 #define DECLARE_COLOR(COLOR) \
-	inline std::wostream& (COLOR)(std::wostream& _out)\
-		{ _out.write(_##COLOR, 5); return _out; }\
-	inline std::wostream& (COLOR##_bg)(std::wostream& _out)\
-		{ _out.write(_##COLOR##_bg, 5); return _out; }
+	inline std::wostream& (stdout_##COLOR)(std::wostream& _out)\
+		{ ::SetConsoleTextAttribute(::GetStdHandle(STD_OUTPUT_HANDLE), _##COLOR); return _out; }\
+	\
+	inline std::wostream& (stderr_##COLOR)(std::wostream& _out)\
+		{ ::SetConsoleTextAttribute(::GetStdHandle(STD_ERROR_HANDLE), _##COLOR); return _out; }
 
-			inline std::wostream& (reset)(std::wostream& _out) { _out.write(_reset, 4); return _out; }
+#define DECLARE_BG_COLOR(COLOR) \
+	inline std::wostream& (stdout_##COLOR##_bg)(std::wostream& _out)\
+		{ ::SetConsoleTextAttribute(::GetStdHandle(STD_OUTPUT_HANDLE), _##COLOR##_bg); return _out; }\
+	\
+	inline std::wostream& (stderr_##COLOR##_bg)(std::wostream& _out)\
+		{ ::SetConsoleTextAttribute(::GetStdHandle(STD_ERROR_HANDLE), _##COLOR##_bg); return _out; }
 
 			DECLARE_COLOR(red);
 			DECLARE_COLOR(green);
 			DECLARE_COLOR(yellow);
 			DECLARE_COLOR(blue);
 			DECLARE_COLOR(white);
+			DECLARE_COLOR(reset);
+
+			DECLARE_BG_COLOR(red);
+			DECLARE_BG_COLOR(green);
+			DECLARE_BG_COLOR(yellow);
+			DECLARE_BG_COLOR(blue);
+			DECLARE_BG_COLOR(white);
 
 #undef DECLARE_COLOR
 		}
@@ -102,7 +114,7 @@ namespace easy2d
 					ss << L"\r\n";
 
 				std::wstring output = ss.str();
-				os << color << output << color::reset;
+				os << color << output;
 				::OutputDebugStringW(output.c_str());
 
 				delete[] buffer;
@@ -124,7 +136,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcout, color::white, false, nullptr, format, args);
+			Output(std::wcout, color::stdout_white, false, nullptr, format, args);
 
 			va_end(args);
 		}
@@ -134,7 +146,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcout, color::white, true, nullptr, format, args);
+			Output(std::wcout, color::stdout_white, true, nullptr, format, args);
 
 			va_end(args);
 		}
@@ -144,7 +156,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcout, color::blue, false, nullptr, format, args);
+			Output(std::wcout, color::stdout_blue, false, nullptr, format, args);
 
 			va_end(args);
 		}
@@ -154,7 +166,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcout, color::blue, true, nullptr, format, args);
+			Output(std::wcout, color::stdout_blue, true, nullptr, format, args);
 
 			va_end(args);
 		}
@@ -164,7 +176,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcerr, color::yellow_bg, false, L"Warning: ", format, args);
+			Output(std::wcerr, color::stdout_yellow_bg, false, L"Warning: ", format, args);
 
 			va_end(args);
 		}
@@ -174,7 +186,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcerr, color::yellow_bg, true, L"Warning: ", format, args);
+			Output(std::wcerr, color::stdout_yellow_bg, true, L"Warning: ", format, args);
 
 			va_end(args);
 		}
@@ -184,7 +196,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcerr, color::red_bg, false, L"Error: ", format, args);
+			Output(std::wcerr, color::stderr_red_bg, false, L"Error: ", format, args);
 
 			va_end(args);
 		}
@@ -194,7 +206,7 @@ namespace easy2d
 			va_list args = nullptr;
 			va_start(args, format);
 
-			Output(std::wcerr, color::red_bg, true, L"Error: ", format, args);
+			Output(std::wcerr, color::stderr_red_bg, true, L"Error: ", format, args);
 
 			va_end(args);
 		}