add samples

project/Easy2D.sln

@@ -1,12 +1,13 @@
-
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2013
-VisualStudioVersion = 12.0.21005.1
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.271
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "HelloWorld", "HelloWorld\HelloWorld.vcxproj", "{3561A359-F9FD-48AB-A977-34E7E568BC8E}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Easy2D", "Easy2D\Easy2D.vcxproj", "{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Samples", "Samples\Samples.vcxproj", "{45F5738D-CDF2-4024-974D-25B64F9043DE}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -15,6 +16,14 @@ Global
 		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|Win32.ActiveCfg = Debug|Win32
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|Win32.Build.0 = Debug|Win32
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|x64.ActiveCfg = Debug|x64
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|x64.Build.0 = Debug|x64
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|Win32.ActiveCfg = Release|Win32
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|Win32.Build.0 = Release|Win32
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|x64.ActiveCfg = Release|x64
+		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|x64.Build.0 = Release|x64
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Debug|Win32.ActiveCfg = Debug|Win32
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Debug|Win32.Build.0 = Debug|Win32
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Debug|Win32.Deploy.0 = Debug|Win32
@@ -25,14 +34,14 @@ Global
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Release|Win32.Build.0 = Release|Win32
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Release|x64.ActiveCfg = Release|x64
 		{FF7F943D-A89C-4E6C-97CF-84F7D8FF8EDF}.Release|x64.Build.0 = Release|x64
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|Win32.ActiveCfg = Debug|Win32
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|Win32.Build.0 = Debug|Win32
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|x64.ActiveCfg = Debug|x64
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Debug|x64.Build.0 = Debug|x64
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|Win32.ActiveCfg = Release|Win32
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|Win32.Build.0 = Release|Win32
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|x64.ActiveCfg = Release|x64
-		{3561A359-F9FD-48AB-A977-34E7E568BC8E}.Release|x64.Build.0 = Release|x64
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Debug|Win32.ActiveCfg = Debug|Win32
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Debug|Win32.Build.0 = Debug|Win32
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Debug|x64.ActiveCfg = Debug|x64
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Debug|x64.Build.0 = Debug|x64
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Release|Win32.ActiveCfg = Release|Win32
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Release|Win32.Build.0 = Release|Win32
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Release|x64.ActiveCfg = Release|x64
+		{45F5738D-CDF2-4024-974D-25B64F9043DE}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

project/Samples/Demo1.h

@@ -0,0 +1,36 @@
+// Copyright (C) 2019 Nomango
+
+#pragma once
+#include "common.h"
+
+class Demo1
+	: public Scene
+{
+public:
+	static ScenePtr Create()
+	{
+		return new Demo1;
+	}
+
+	Demo1()
+	{
+		// 创建文本
+		auto text = E_NEW Text(L"Hello Easy2D!");
+		// 让文本显示在屏幕中央
+		text->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2);
+		text->SetAnchor(0.5, 0.5);
+		// 添加到场景
+		this->AddChild(text);
+
+		// 执行动画
+		text->AddAction(
+			Tween::Spawn({								// Action5: 同时执行 Action1 和 Action4, 并无限循环
+				Tween::RotateBy(60).SetDuration(1000),	// Action1: 1秒旋转 60 度
+				Tween::Sequence({						// Action4: 顺序执行 Action2 和 Action3
+					Tween::FadeOut(500),				// Action2: 500毫秒淡出动画
+					Tween::FadeIn(500)					// Action3: 500毫秒淡入动画
+				})
+			}).SetLoopCount(-1)
+		);
+	}
+};

project/Samples/Demo2.h

@@ -0,0 +1,91 @@
+// Copyright (C) 2019 Nomango
+
+#pragma once
+#include "common.h"
+
+class Man
+	: public Sprite
+{
+public:
+	Man()
+	{
+		// 加载图片
+		Load(L"res/man.png");
+		// 缩小图片
+		SetScale(0.5f);
+	}
+
+	// 每帧更新时
+	void OnUpdate(Duration dt) override
+	{
+		// 获取输入设备
+		auto input = Input::Instance();
+		// 按下左右键
+		if (input->IsDown(KeyCode::Left))
+		{
+			this->Move(-2, 0);
+		}
+		else if (input->IsDown(KeyCode::Right))
+		{
+			this->Move(2, 0);
+		}
+
+		// 按下上下键
+		if (input->IsDown(KeyCode::Up))
+		{
+			this->Move(0, -2);
+		}
+		else if (input->IsDown(KeyCode::Down))
+		{
+			this->Move(0, 2);
+		}
+
+		// 按下鼠标左键，顺时针旋转小人
+		if (input->IsDown(MouseButton::Left))
+		{
+			// 获取当前旋转角度
+			float rotation = this->GetRotation();
+			// 设置角度值+2
+			this->SetRotation(rotation + 2);
+		}
+
+		// 点击鼠标右键，隐藏或显示小人
+		if (input->WasPressed(MouseButton::Right))
+		{
+			// 获取当前显示状态
+			bool visible = this->IsVisible();
+			// 设置相反的显示状态
+			this->SetVisible(!visible);
+		}
+	}
+};
+
+class Demo2
+	: public Scene
+{
+public:
+	static ScenePtr Create()
+	{
+		return new Demo2;
+	}
+
+	Demo2()
+	{
+		// 创建人物
+		auto man = E_NEW Man;
+		// 在屏幕上居中显示
+		man->SetAnchor(0.5f, 0.5f);
+		man->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2);
+
+		// 创建说明文字
+		auto text = E_NEW Text(L"按上下左右键移动\n按鼠标左键旋转\n点击鼠标右键隐藏");
+		// 设置文字位置
+		text->SetAnchor(0.5f, 0.5f);
+		text->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT - 50);
+		text->SetAlignment(TextAlign::Center);
+
+		// 添加到场景
+		this->AddChild(man);
+		this->AddChild(text);
+	}
+};

project/Samples/Demo3.h

@@ -0,0 +1,87 @@
+// Copyright (C) 2019 Nomango
+
+#pragma once
+#include "common.h"
+
+class Demo3
+	: public Scene
+{
+	MusicPtr music;			// 音乐对象
+	TextPtr volume_text;	// 音量文字
+	TextPtr state_text;		// 播放状态文字
+
+public:
+	static ScenePtr Create()
+	{
+		return new Demo3;
+	}
+
+	Demo3()
+	{
+		// 加载音乐
+		music = E_NEW Music;
+		if (!music->Load(L"res/music.wav"))
+		{
+			music = nullptr;
+
+			auto err = E_NEW Text(L"音频文件加载失败");
+			this->AddChild(err);
+		}
+
+		// 播放音乐（参数用来设置播放循环次数，-1 表示循环播放）
+		music->Play(-1);
+
+		// 创建说明文字
+		auto intro_text = E_NEW Text(L"按上下键调整音量\n按空格键暂停或继续");
+		intro_text->SetAnchor(0.5f, 0.5f);
+		intro_text->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2 - 50);
+
+		// 创建音量文字
+		volume_text = E_NEW Text(L"当前音量：");
+		volume_text->SetAnchor(0.5f, 0.5f);
+		volume_text->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2 + 30);
+
+		// 创建状态文字
+		state_text = E_NEW Text(L"当前状态：");
+		state_text->SetAnchor(0.5f, 0.5f);
+		state_text->SetPosition(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2 + 60);
+
+		// 添加到场景
+		this->AddChild(intro_text);
+		this->AddChild(volume_text);
+		this->AddChild(state_text);
+	}
+
+	void OnUpdate(Duration dt) override
+	{
+		if (music == nullptr)
+			return;
+
+		// 获取音量和播放状态
+		float volume = music->GetVolume();
+		bool playing = music->IsPlaying();
+
+		// 修改文本
+		volume_text->SetText(L"当前音量：" + std::to_wstring(volume));
+		state_text->SetText(playing ? L"当前状态：正在播放" : L"当前状态：停止播放");
+
+		// 获取输入设备
+		auto input = Input::Instance();
+
+		// 按空格键暂停或继续
+		if (input->WasPressed(KeyCode::Space))
+		{
+			music->IsPlaying() ? music->Pause() : music->Resume();
+		}
+
+		// 按上下键调整音量
+		if (input->WasPressed(KeyCode::Up))
+		{
+			music->SetVolume(volume + 0.1f);
+		}
+		else if (input->WasPressed(KeyCode::Down))
+		{
+			music->SetVolume(volume - 0.1f);
+		}
+	}
+};

project/Samples/Samples.vcxproj

@@ -0,0 +1,153 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>15.0</VCProjectVersion>
+    <ProjectGuid>{45F5738D-CDF2-4024-974D-25B64F9043DE}</ProjectGuid>
+    <RootNamespace>Samples</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>../../src</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>../../src</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>../../src</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>../../src</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="common.h" />
+    <ClInclude Include="Demo1.h" />
+    <ClInclude Include="Demo2.h" />
+    <ClInclude Include="Demo3.h" />
+    <ClInclude Include="include-forwards.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Easy2D\Easy2D.vcxproj">
+      <Project>{ff7f943d-a89c-4e6c-97cf-84f7d8ff8edf}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

project/Samples/Samples.vcxproj.filters

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="include-forwards.h" />
+    <ClInclude Include="Demo1.h" />
+    <ClInclude Include="common.h" />
+    <ClInclude Include="Demo2.h" />
+    <ClInclude Include="Demo3.h" />
+  </ItemGroup>
+</Project>

project/Samples/common.h

@@ -0,0 +1,9 @@
+// Copyright (C) 2019 Nomango
+
+#pragma once
+#include "easy2d.h"
+
+using namespace easy2d;
+
+const int WINDOW_WIDTH = 640;
+const int WINDOW_HEIGHT = 480;

project/Samples/include-forwards.h

@@ -0,0 +1,7 @@
+// Copyright (C) 2019 Nomango
+
+#pragma once
+#include "common.h"
+#include "Demo1.h"
+#include "Demo2.h"
+#include "Demo3.h"

project/Samples/main.cpp

@@ -0,0 +1,82 @@
+// Copyright (C) 2019 Nomango
+
+#include "include-forwards.h"
+
+namespace
+{
+	struct Demo
+	{
+		String title;
+		ScenePtr(*Create)();
+	};
+
+	Demo s_Demos[] = {
+		{ L"动画示例", Demo1::Create },
+		{ L"输入示例", Demo2::Create },
+		{ L"音频播放示例", Demo3::Create },
+	};
+	int s_DemoIndex = 0;
+	int s_DemoNum = sizeof(s_Demos) / sizeof(Demo);
+}
+
+class DemoApp
+	: public Application
+{
+public:
+	DemoApp()
+	{
+		Options options;
+		options.title = L"Easy2D示例程序";
+		options.width = WINDOW_WIDTH;
+		options.height = WINDOW_HEIGHT;
+
+		Init(options);
+	}
+
+	void OnStart() override
+	{
+		ChangeDemoScene();
+	}
+
+	void ChangeDemoScene()
+	{
+		Window::Instance()->SetTitle(s_Demos[s_DemoIndex].title);
+
+		ScenePtr scene = s_Demos[s_DemoIndex].Create();
+		EnterScene(scene);
+
+		// 添加按键监听
+		scene->AddListener(KeyboardEvent::Up, Closure(this, &DemoApp::KeyPressed));
+
+		// 显示提示文字
+		TextPtr intro = new Text(L"Key 1~3 to select demo");
+		intro->SetFontSize(16.f);
+		scene->AddChild(intro);
+	}
+
+	void KeyPressed(Event const& evt)
+	{
+		E2D_ASSERT(evt.type == KeyboardEvent::Up);
+
+		if (evt.key.code > KeyCode::Num0 &&
+			evt.key.code <= (KeyCode::Num0 + s_DemoNum))
+		{
+			s_DemoIndex = evt.key.code - KeyCode::Num1;
+			ChangeDemoScene();
+		}
+	}
+};
+
+int main()
+{
+	try
+	{
+		DemoApp app;
+		app.Run();
+	}
+	catch (std::exception& e)
+	{
+		::MessageBoxA(nullptr, e.what(), "An exception has occurred!", MB_ICONERROR | MB_TASKMODAL);
+	}
+	return 0;
+}

src/core/Application.cpp

@@ -154,6 +154,13 @@ namespace easy2d
 		Window::Instance()->Destroy();
 	}
 
+	void Application::Destroy()
+	{
+		transition_ = nullptr;
+		next_scene_ = nullptr;
+		curr_scene_ = nullptr;
+	}
+
 	void Application::EnterScene(ScenePtr const & scene)
 	{
 		E2D_ASSERT(scene && "Application::EnterScene failed, NULL pointer exception");
@@ -218,6 +225,8 @@ namespace easy2d
 			next_scene_ = nullptr;
 		}
 
+		OnUpdate(dt);
+
 		if (curr_scene_)
 			curr_scene_->Update(dt);
 
@@ -284,7 +293,7 @@ namespace easy2d
 			if (!app->transition_ && app->curr_scene_)
 			{
 				Event evt((msg == WM_KEYDOWN) ? KeyboardEvent::Down : KeyboardEvent::Up);
-				evt.key.code = KeyCode(wparam);
+				evt.key.code = static_cast<int>(wparam);
 				evt.key.count = static_cast<int>(lparam & 0xFF);
 
 				app->curr_scene_->Dispatch(evt);

src/core/Application.h

@@ -74,12 +74,18 @@ namespace easy2d
 		// 销毁时
 		virtual void OnDestroy() {}
 
+		// 更新时
+		virtual void OnUpdate(Duration dt) { E2D_NOT_USED(dt); }
+
 		// 运行
 		void Run();
 
 		// 结束
 		void Quit();
 
+		// 销毁
+		void Destroy();
+
 		// 切换场景
 		void EnterScene(
 			ScenePtr const& scene			/* 场景 */

src/core/Event.hpp

@@ -52,7 +52,7 @@ namespace easy2d
 
 		struct
 		{
-			MouseButton button;	// 仅当消息类型为 Down | Up | Click 时有效
+			int button;		// 仅当消息类型为 Down | Up | Click 时有效
 		};
 
 		struct
@@ -79,7 +79,7 @@ namespace easy2d
 			Last
 		};
 
-		KeyCode code;
+		int code;	// enum KeyCode
 		int count;
 
 		static inline bool Check(UINT type)

src/core/Font.hpp

@@ -49,7 +49,7 @@ namespace easy2d
 	public:
 		Font(
 			const String& family	= L"",
-			float size				= 22,
+			float size				= 18,
 			unsigned int weight		= FontWeight::Normal,
 			bool italic				= false
 		)

src/core/Input.cpp

@@ -72,34 +72,22 @@ namespace easy2d
 		want_update_ = true;
 	}
 
-	bool Input::IsDown(KeyCode code)
+	bool Input::IsDown(int code_or_btn)
 	{
-		return keys_[static_cast<int>(code)];
+		E2D_ASSERT(code_or_btn >= 0 && code_or_btn < 256);
+		return keys_[code_or_btn];
 	}
 
-	bool Input::IsDown(MouseButton btn)
+	bool Input::WasPressed(int code_or_btn)
 	{
-		return keys_[static_cast<int>(btn)];
+		E2D_ASSERT(code_or_btn >= 0 && code_or_btn < 256);
+		return keys_pressed_[code_or_btn];
 	}
 
-	bool Input::WasPressed(KeyCode code)
+	bool Input::WasReleased(int code_or_btn)
 	{
-		return keys_pressed_[static_cast<int>(code)];
-	}
-
-	bool Input::WasPressed(MouseButton btn)
-	{
-		return keys_pressed_[static_cast<int>(btn)];
-	}
-
-	bool Input::WasReleased(KeyCode code)
-	{
-		return keys_released_[static_cast<int>(code)];
-	}
-
-	bool Input::WasReleased(MouseButton btn)
-	{
-		return keys_released_[static_cast<int>(btn)];
+		E2D_ASSERT(code_or_btn >= 0 && code_or_btn < 256);
+		return keys_released_[code_or_btn];
 	}
 
 	float Input::GetMouseX()

src/core/Input.h

@@ -31,34 +31,19 @@ namespace easy2d
 		E2D_DECLARE_SINGLETON(Input);
 
 	public:
-		// 检测键盘按键是否正被按下
+		// 检测键盘或鼠标按键是否正被按下
 		bool IsDown(
-			KeyCode code
+			int code_or_btn
 		);
 
-		// 检测鼠标按键是否正被按下
-		bool IsDown(
-			MouseButton btn
-		);
-
-		// 检测键盘按键是否刚被点击
+		// 检测键盘或鼠标按键是否刚被点击
 		bool WasPressed(
-			KeyCode code
+			int code_or_btn
 		);
 
-		// 检测鼠标按键是否刚被点击
-		bool WasPressed(
-			MouseButton btn
-		);
-
-		// 检测键盘按键是否刚抬起
+		// 检测键盘或鼠标按键是否刚抬起
 		bool WasReleased(
-			KeyCode code
-		);
-
-		// 检测鼠标按键是否刚抬起
-		bool WasReleased(
-			MouseButton btn
+			int code_or_btn
 		);
 
 		// 資誼報炎 x 恫炎

src/core/Text.h

@@ -119,7 +119,7 @@ namespace easy2d
 			String const& family
 		);
 
-		// 设置字号（默认值为 22）
+		// 设置字号（默认值为 18）
 		void SetFontSize(
 			float size
 		);

src/core/keys.hpp

@@ -24,88 +24,98 @@
 namespace easy2d
 {
 	// 報炎梓囚
-	enum class MouseButton : int
+	struct MouseButton
 	{
-		Left	= VK_LBUTTON,	// 報炎恣囚
-		Right	= VK_RBUTTON,	// 報炎嘔囚
-		Middle	= VK_MBUTTON	// 報炎嶄囚
+		typedef int Value;
+
+		enum : int
+		{
+			Left	= VK_LBUTTON,	// 報炎恣囚
+			Right	= VK_RBUTTON,	// 報炎嘔囚
+			Middle	= VK_MBUTTON	// 報炎嶄囚
+		};
 	};
 
 
 	// 梓囚囚峙
-	enum class KeyCode : int
+	struct KeyCode
 	{
-		Unknown = 0,
-		Up		= VK_UP,
-		Left	= VK_LEFT,
-		Right	= VK_RIGHT,
-		Down	= VK_DOWN,
-		Enter	= VK_RETURN,
-		Space	= VK_SPACE,
-		Esc		= VK_ESCAPE,
-		Ctrl	= VK_CONTROL,
-		Shift	= VK_SHIFT,
+		typedef int Value;
 
-		A = 0x41,
-		B,
-		C,
-		D,
-		E,
-		F,
-		G,
-		H,
-		I,
-		J,
-		K,
-		L,
-		M,
-		N,
-		O,
-		P,
-		Q,
-		R,
-		S,
-		T,
-		U,
-		V,
-		W,
-		X,
-		Y,
-		Z,
+		enum : int
+		{
+			Unknown = 0,
+			Up		= VK_UP,
+			Left	= VK_LEFT,
+			Right	= VK_RIGHT,
+			Down	= VK_DOWN,
+			Enter	= VK_RETURN,
+			Space	= VK_SPACE,
+			Esc		= VK_ESCAPE,
+			Ctrl	= VK_CONTROL,
+			Shift	= VK_SHIFT,
 
-		Num0 = 0x30,
-		Num1,
-		Num2,
-		Num3,
-		Num4,
-		Num5,
-		Num6,
-		Num7,
-		Num8,
-		Num9,
+			A = 0x41,
+			B,
+			C,
+			D,
+			E,
+			F,
+			G,
+			H,
+			I,
+			J,
+			K,
+			L,
+			M,
+			N,
+			O,
+			P,
+			Q,
+			R,
+			S,
+			T,
+			U,
+			V,
+			W,
+			X,
+			Y,
+			Z,
 
-		Numpad0 = VK_NUMPAD0,
-		Numpad1,
-		Numpad2,
-		Numpad3,
-		Numpad4,
-		Numpad5,
-		Numpad6,
-		Numpad7,
-		Numpad8,
-		Numpad9,
+			Num0 = 0x30,
+			Num1,
+			Num2,
+			Num3,
+			Num4,
+			Num5,
+			Num6,
+			Num7,
+			Num8,
+			Num9,
 
-		F1 = VK_F1,
-		F2,
-		F3,
-		F4,
-		F5,
-		F6,
-		F7,
-		F8,
-		F9,
-		F10,
-		F11,
-		F12,
+			Numpad0 = VK_NUMPAD0,
+			Numpad1,
+			Numpad2,
+			Numpad3,
+			Numpad4,
+			Numpad5,
+			Numpad6,
+			Numpad7,
+			Numpad8,
+			Numpad9,
+
+			F1 = VK_F1,
+			F2,
+			F3,
+			F4,
+			F5,
+			F6,
+			F7,
+			F8,
+			F9,
+			F10,
+			F11,
+			F12,
+		};
 	};
 }