urho3d的helloworld合并成单个文件(存粹copy)

这个嘛存粹是抄一下，省的每次还要继承啊，太多东西，不好去修改，一个文件做修改方便点，留这样，以备后面copy用

#pragma once#include <Urho3D/Engine/Application.h>#include <Urho3D/Input/Input.h>#include <Urho3D/Engine/Application.h>#include <Urho3D/Graphics/Camera.h>#include <Urho3D/Engine/Console.h>#include <Urho3D/UI/Cursor.h>#include <Urho3D/Engine/DebugHud.h>#include <Urho3D/Engine/Engine.h>#include <Urho3D/IO/FileSystem.h>#include <Urho3D/Graphics/Graphics.h>#include <Urho3D/Input/Input.h>#include <Urho3D/Input/InputEvents.h>#include <Urho3D/Graphics/Renderer.h>#include <Urho3D/Resource/ResourceCache.h>#include <Urho3D/Scene/Scene.h>#include <Urho3D/Scene/SceneEvents.h>#include <Urho3D/UI/Sprite.h>#include <Urho3D/Graphics/Texture2D.h>#include <Urho3D/Core/Timer.h>#include <Urho3D/UI/UI.h>#include <Urho3D/Resource/XMLFile.h>#include <Urho3D/IO/Log.h>#include <Urho3D/Core/CoreEvents.h>#include <Urho3D/Core/ProcessUtils.h>#include <Urho3D/Input/Input.h>#include <Urho3D/UI/Font.h>#include <Urho3D/UI/Text.h>#include <Urho3D/UI/UI.h>#include <Urho3D/DebugNew.h>namespace Urho3D{    class Node;    class Scene;    class Sprite;}using namespace Urho3D;const float TOUCH_SENSITIVITY = 2.0f;class Game : public Application{    URHO3D_OBJECT(Game, Application);public:    Game(Context *context);    virtual void Setup();    virtual void Start();    virtual void Stop();protected:    virtual String GetScreenJoystickPatchString() const { return String::EMPTY; }    void InitTouchInput();    void InitMouseMode(MouseMode mode);    void SetLogoVisible(bool enable);    SharedPtr<Sprite> logoSprite_;    SharedPtr<Scene> scene_;    SharedPtr<Node> cameraNode_;    float yaw_;    float pitch_;    bool touchEnabled_;    MouseMode useMouseMode_;private:    void HandleMouseModeRequest(StringHash eventType, VariantMap& eventData);    void HandleMouseModeChange(StringHash eventType, VariantMap& eventData);    void HandleKeyDown(StringHash eventType, VariantMap& eventData);    void HandleKeyUp(StringHash eventType, VariantMap& eventData);    void HandleSceneUpdate(StringHash eventType, VariantMap& eventData);    void HandleTouchBegin(StringHash eventType, VariantMap& eventData);    void HandleUpdate(StringHash eventType, VariantMap& eventData);    unsigned screenJoystickIndex_;    unsigned screenJoystickSettingsIndex_;    bool paused_;};URHO3D_DEFINE_APPLICATION_MAIN(Game)Game::Game(Context* context) :Application(context),yaw_(0.0f),pitch_(0.0f),touchEnabled_(false),screenJoystickIndex_(M_MAX_UNSIGNED),screenJoystickSettingsIndex_(M_MAX_UNSIGNED),paused_(false),useMouseMode_(MM_ABSOLUTE){}void Game::Setup(){    engineParameters_["WindowTitle"] = GetTypeName();    engineParameters_["LogName"] = GetSubsystem<FileSystem>()->GetAppPreferencesDir("urho3d", "logs") + GetTypeName() + ".log";    engineParameters_["FullScreen"] = false;    engineParameters_["Headless"] = false;    engineParameters_["Sound"] = false;    if (!engineParameters_.Contains("ResourcePrefixPaths"))        engineParameters_["ResourcePrefixPaths"] = ";../share/Resources;../share/Urho3D/Resources";}void Game::Start(){    if (GetPlatform() == "Android" || GetPlatform() == "iOS")        InitTouchInput();    else if (GetSubsystem<Input>()->GetNumJoysticks() == 0)        SubscribeToEvent(E_TOUCHBEGIN, URHO3D_HANDLER(Game, HandleTouchBegin));    ResourceCache* cache = GetSubsystem<ResourceCache>();    Texture2D* logoTexture = cache->GetResource<Texture2D>("Textures/LogoLarge.png");    if (!logoTexture)        return;    UI* ui = GetSubsystem<UI>();    logoSprite_ = ui->GetRoot()->CreateChild<Sprite>();    logoSprite_->SetTexture(logoTexture);    int textureWidth = logoTexture->GetWidth();    int textureHeight = logoTexture->GetHeight();    logoSprite_->SetScale(256.0f / textureWidth);    logoSprite_->SetSize(textureWidth, textureHeight);    logoSprite_->SetHotSpot(0, textureHeight);    logoSprite_->SetAlignment(HA_LEFT, VA_BOTTOM);    logoSprite_->SetOpacity(0.75f);    logoSprite_->SetPriority(-100);    Graphics* graphics = GetSubsystem<Graphics>();    Image* icon = cache->GetResource<Image>("Textures/UrhoIcon.png");    graphics->SetWindowIcon(icon);    graphics->SetWindowTitle("Urho3D Game");    XMLFile* xmlFile = cache->GetResource<XMLFile>("UI/DefaultStyle.xml");    Console* console = engine_->CreateConsole();    console->SetDefaultStyle(xmlFile);    console->GetBackground()->SetOpacity(0.8f);    DebugHud* debugHud = engine_->CreateDebugHud();    debugHud->SetDefaultStyle(xmlFile);    SubscribeToEvent(E_KEYDOWN, URHO3D_HANDLER(Game, HandleKeyDown));    SubscribeToEvent(E_KEYUP, URHO3D_HANDLER(Game, HandleKeyUp));    SubscribeToEvent(E_SCENEUPDATE, URHO3D_HANDLER(Game, HandleSceneUpdate));    //========================================================================    // hello world    SharedPtr<Text> helloText(new Text(context_));    helloText->SetText("Hello World from Urho3D!");    helloText->SetFont(cache->GetResource<Font>("Fonts/Anonymous Pro.ttf"), 30);    helloText->SetColor(Color(0.0f, 1.0f, 0.0f));    helloText->SetHorizontalAlignment(HA_CENTER);    helloText->SetVerticalAlignment(VA_CENTER);    ui->GetRoot()->AddChild(helloText);    //========================================================================    SubscribeToEvent(E_UPDATE, URHO3D_HANDLER(Game, HandleUpdate));    InitMouseMode(MM_FREE);}void Game::HandleUpdate(StringHash eventType, VariantMap& eventData){}void Game::Stop(){    engine_->DumpResources(true);}void Game::InitTouchInput(){    touchEnabled_ = true;    ResourceCache* cache = GetSubsystem<ResourceCache>();    Input* input = GetSubsystem<Input>();    XMLFile* layout = cache->GetResource<XMLFile>("UI/ScreenJoystick_Simple.xml");    const String& patchString = GetScreenJoystickPatchString();    if (!patchString.Empty())    {        SharedPtr<XMLFile> patchFile(new XMLFile(context_));        if (patchFile->FromString(patchString))            layout->Patch(patchFile);    }    screenJoystickIndex_ = input->AddScreenJoystick(layout, cache->GetResource<XMLFile>("UI/DefaultStyle.xml"));    input->SetScreenJoystickVisible(screenJoystickSettingsIndex_, true);}void Game::InitMouseMode(MouseMode mode){    useMouseMode_ = mode;    Input* input = GetSubsystem<Input>();    if (GetPlatform() != "Web")    {        if (useMouseMode_ == MM_FREE)            input->SetMouseVisible(true);        Console* console = GetSubsystem<Console>();        if (useMouseMode_ != MM_ABSOLUTE)        {            input->SetMouseMode(useMouseMode_);            if (console && console->IsVisible())                input->SetMouseMode(MM_ABSOLUTE, true);        }    }    else    {        input->SetMouseVisible(true);        SubscribeToEvent(E_MOUSEBUTTONDOWN, URHO3D_HANDLER(Game, HandleMouseModeRequest));        SubscribeToEvent(E_MOUSEMODECHANGED, URHO3D_HANDLER(Game, HandleMouseModeChange));    }}void Game::SetLogoVisible(bool enable){    if (logoSprite_)        logoSprite_->SetVisible(enable);}void Game::HandleKeyUp(StringHash eventType, VariantMap& eventData){    using namespace KeyUp;    int key = eventData[P_KEY].GetInt();    if (key == KEY_ESCAPE)    {        Console* console = GetSubsystem<Console>();        if (console->IsVisible())            console->SetVisible(false);        else        {            if (GetPlatform() == "Web")            {                GetSubsystem<Input>()->SetMouseVisible(true);                if (useMouseMode_ != MM_ABSOLUTE)                    GetSubsystem<Input>()->SetMouseMode(MM_FREE);            }            else                engine_->Exit();        }    }}void Game::HandleKeyDown(StringHash eventType, VariantMap& eventData){    using namespace KeyDown;    int key = eventData[P_KEY].GetInt();    if (key == KEY_F1)        GetSubsystem<Console>()->Toggle();    else if (key == KEY_F2)        GetSubsystem<DebugHud>()->ToggleAll();    else if (!GetSubsystem<UI>()->GetFocusElement())    {        Renderer* renderer = GetSubsystem<Renderer>();        if (key == KEY_SELECT && touchEnabled_)        {            paused_ = !paused_;            Input* input = GetSubsystem<Input>();            if (screenJoystickSettingsIndex_ == M_MAX_UNSIGNED)            {                ResourceCache* cache = GetSubsystem<ResourceCache>();                screenJoystickSettingsIndex_ = input->AddScreenJoystick(cache->GetResource<XMLFile>("UI/ScreenJoystickSettings_Samples.xml"), cache->GetResource<XMLFile>("UI/DefaultStyle.xml"));            }            else                input->SetScreenJoystickVisible(screenJoystickSettingsIndex_, paused_);        }        else if (key == '1')        {            int quality = renderer->GetTextureQuality();            ++quality;            if (quality > QUALITY_HIGH)                quality = QUALITY_LOW;            renderer->SetTextureQuality(quality);        }        else if (key == '2')        {            int quality = renderer->GetMaterialQuality();            ++quality;            if (quality > QUALITY_HIGH)                quality = QUALITY_LOW;            renderer->SetMaterialQuality(quality);        }        else if (key == '3')            renderer->SetSpecularLighting(!renderer->GetSpecularLighting());        else if (key == '4')            renderer->SetDrawShadows(!renderer->GetDrawShadows());        else if (key == '5')        {            int shadowMapSize = renderer->GetShadowMapSize();            shadowMapSize *= 2;            if (shadowMapSize > 2048)                shadowMapSize = 512;            renderer->SetShadowMapSize(shadowMapSize);        }        else if (key == '6')        {            ShadowQuality quality = renderer->GetShadowQuality();            quality = (ShadowQuality)(quality + 1);            if (quality > SHADOWQUALITY_BLUR_VSM)                quality = SHADOWQUALITY_SIMPLE_16BIT;            renderer->SetShadowQuality(quality);        }        else if (key == '7')        {            bool occlusion = renderer->GetMaxOccluderTriangles() > 0;            occlusion = !occlusion;            renderer->SetMaxOccluderTriangles(occlusion ? 5000 : 0);        }        else if (key == '8')            renderer->SetDynamicInstancing(!renderer->GetDynamicInstancing());        else if (key == '9')        {            Graphics* graphics = GetSubsystem<Graphics>();            Image screenshot(context_);            graphics->TakeScreenShot(screenshot);            screenshot.SavePNG(GetSubsystem<FileSystem>()->GetProgramDir() + "Data/Screenshot_" +                Time::GetTimeStamp().Replaced(':', '_').Replaced('.', '_').Replaced(' ', '_') + ".png");        }    }}void Game::HandleSceneUpdate(StringHash eventType, VariantMap& eventData){    if (touchEnabled_ && cameraNode_)    {        Input* input = GetSubsystem<Input>();        for (unsigned i = 0; i < input->GetNumTouches(); ++i)        {            TouchState* state = input->GetTouch(i);            if (!state->touchedElement_)    // Touch on empty space            {                if (state->delta_.x_ || state->delta_.y_)                {                    Camera* camera = cameraNode_->GetComponent<Camera>();                    if (!camera)                        return;                    Graphics* graphics = GetSubsystem<Graphics>();                    yaw_ += TOUCH_SENSITIVITY * camera->GetFov() / graphics->GetHeight() * state->delta_.x_;                    pitch_ += TOUCH_SENSITIVITY * camera->GetFov() / graphics->GetHeight() * state->delta_.y_;                    cameraNode_->SetRotation(Quaternion(pitch_, yaw_, 0.0f));                }                else                {                    Cursor* cursor = GetSubsystem<UI>()->GetCursor();                    if (cursor && cursor->IsVisible())                        cursor->SetPosition(state->position_);                }            }        }    }}void Game::HandleTouchBegin(StringHash eventType, VariantMap& eventData){    InitTouchInput();    UnsubscribeFromEvent("TouchBegin");}void Game::HandleMouseModeRequest(StringHash eventType, VariantMap& eventData){    Console* console = GetSubsystem<Console>();    if (console && console->IsVisible())        return;    Input* input = GetSubsystem<Input>();    if (useMouseMode_ == MM_ABSOLUTE)        input->SetMouseVisible(false);    else if (useMouseMode_ == MM_FREE)        input->SetMouseVisible(true);    input->SetMouseMode(useMouseMode_);}void Game::HandleMouseModeChange(StringHash eventType, VariantMap& eventData){    Input* input = GetSubsystem<Input>();    bool mouseLocked = eventData[MouseModeChanged::P_MOUSELOCKED].GetBool();    input->SetMouseVisible(!mouseLocked);}