Elevate::Application Class Reference

#include <Application.h>

Public Member Functions
	Application ()
virtual	~Application ()=default
void	Init ()
void	EngineFrame ()
void	Run ()
void	Exit ()
void	OnEvent (Event &e)
void	PushLayer (Layer *layer)
void	PushOverlay (Layer *overlay)
Window &	GetWindow ()

Static Public Member Functions
static void	Start (int argc, char **argv)
static Application &	Get ()
static ApplicationArguments	GetArguments ()
static const GameContextState &	GetGameState ()
static void	SetGameState (GameContextState newState)

Public Attributes
std::unique_ptr< Framebuffer >	FrameBuffer

Protected Member Functions
void	OnStateChange (GameContextState oldState, GameContextState newState)

Friends
class	Elevate::Editor::EditorLayer

Detailed Description

Definition at line 40 of file Application.h.

Constructor & Destructor Documentation

Application()

Elevate::Application::Application

(

)

Definition at line 35 of file Application.cpp.

    {
        EE_CORE_ASSERT(!s_Instance, "Application already exists!");
        s_Instance = this;
 
        EE_CORE_TRACE("Current working directory : {}", std::filesystem::current_path().string().c_str());
 
        m_Window = std::unique_ptr<Window>(Window::Create());
        m_Window->SetEventCallback(BIND_EVENT_FN(OnEvent));
 
        DebugRenderer::Init();
 
        FrameBuffer.reset(Framebuffer::Create(m_Window->GetWidth(), m_Window->GetHeight())); 
        FrameBuffer->SetClearColor({ 0.8f, 0.4f, 0.7f, 1.0f }); // Pink / purple for debug purposes
 
        #ifdef EE_EDITOR_BUILD
            PushOverlay(new Elevate::Editor::EditorLayer());
            SetGameState(GameContextState::EditorMode);
        #else
            SetGameState(GameContextState::Runtime);
        #endif
 
        m_ImGuiLayer = new ImGuiLayer();
        PushOverlay(m_ImGuiLayer);
    }

~Application()

virtual Elevate::Application::~Application ( )

virtualdefault

Member Function Documentation

EngineFrame()

void Elevate::Application::EngineFrame

(

)

Definition at line 124 of file Application.cpp.

    {
        static float lastTime = 0.0f;
 
#if !EE_ASSERTS_ENABLED
        try
        {
#endif // #if EE_ASSERTS_ENABLED
            // TIME UPDATE //////////////////
            Time::currentTime_ = (float) m_Window->GetTime();
            Time::deltaTime_ = Time::currentTime_ - lastTime;
            lastTime = Time::currentTime_;
 
            SoundEngine::RenderAudio();
            TextureManager::UpdateLoadingTextures();
 
            FrameBuffer->Bind(); // Rendering the screen in a single texture
            FrameBuffer->Clear();
 
            for (Layer* layer : m_LayerStack)
                layer->OnUpdate();
 
            // Draw Layers and Scenes
            for (Layer* layer : m_LayerStack)
                layer->OnRender();
 
            DebugRenderer::Render();
            Renderer::DrawStack();
 
            FrameBuffer->Unbind(); // Back to normal
 
            #ifndef EE_EDITOR_BUILD
            FrameBuffer->BlitFramebufferToScreen(m_Window->GetWidth(), m_Window->GetHeight());
            #endif
 
            //imgui
            m_ImGuiLayer->PreRender();
            m_ImGuiLayer->Begin();
 
            for (Layer* layer : m_LayerStack)
                layer->OnImGuiRender();
                
            m_ImGuiLayer->Render(); // render imgui
            m_ImGuiLayer->End(); // finish the imgui rendering
 
            Renderer::InvalidateStateCache(); // Clear the renderer state after ImGui rendering
            Input::ManageMidStates(); // Manage Key/Button up and down state
 
            Renderer::FlushBuffers();   
            // Poll events and swap buffers
            m_Window->OnUpdate();
 
#ifdef EE_PLATFORM_WEB
            if (!m_Running)
            {
                emscripten_cancel_main_loop();
                Exit();
            }
#endif
 
#if !EE_ASSERTS_ENABLED
        }
        catch (const std::exception& exc)
        {
            EE_CORE_ERROR("{}", exc.what());
        }
#endif // #if EE_ASSERTS_ENABLED
    }

Exit()

void Elevate::Application::Exit

(

)

Definition at line 207 of file Application.cpp.

    {
        m_ImGuiLayer->Cleanup();
        SoundEngine::Terminate();
    }

Get()

static Application & Elevate::Application::Get ( )

inlinestatic

Definition at line 62 of file Application.h.

{ return *s_Instance; }

GetArguments()

ApplicationArguments Elevate::Application::GetArguments ( )

static

Definition at line 233 of file Application.cpp.

    {
        return s_Instance->m_args;
    }

GetGameState()

const GameContextState & Elevate::Application::GetGameState ( )

static

Definition at line 213 of file Application.cpp.

    {
        return s_Instance->m_state;
    }

GetWindow()

Window & Elevate::Application::GetWindow ( )

inline

Definition at line 63 of file Application.h.

{ return *m_Window; }

Init()

void Elevate::Application::Init

(

)

Definition at line 119 of file Application.cpp.

    {
        SoundEngine::Init();
    }

OnEvent()

void Elevate::Application::OnEvent

(

Event &

e

)

Definition at line 74 of file Application.cpp.

    {
        EventDispatcher dispatcher(e);
        dispatcher.Dispatch<WindowCloseEvent>(BIND_EVENT_FN(OnWindowClose));
        dispatcher.Dispatch<WindowResizeEvent>(BIND_EVENT_FN(OnWindowResize));
        dispatcher.Dispatch<WindowFocusEvent>(BIND_EVENT_FN(OnWindowFocusEvent));
 
        // Keyboard
        dispatcher.Dispatch<KeyPressedEvent>(BIND_EVENT_FN(OnKeyPressedEvent));
        dispatcher.Dispatch<KeyReleasedEvent>(BIND_EVENT_FN(OnKeyReleasedEvent));
 
        // Mousse
        dispatcher.Dispatch<MouseButtonPressedEvent>(BIND_EVENT_FN(OnMouseButtonPressedEvent));
        dispatcher.Dispatch<MouseButtonReleasedEvent>(BIND_EVENT_FN(OnMouseButtonReleasedEvent));
 
        for (auto it = m_LayerStack.end(); it != m_LayerStack.begin();)
        {
            (*--it)->OnEvent(e);
            if (e.Handled)
                break;
        }
    }

OnStateChange()

void Elevate::Application::OnStateChange ( GameContextState  oldState, GameContextState  newState  )

protected

Definition at line 239 of file Application.cpp.

    {
        GameContextEvent e(oldState, newState);
        OnEvent(e);
    }

PushLayer()

void Elevate::Application::PushLayer

(

Layer *

layer

)

Definition at line 61 of file Application.cpp.

    {
        m_LayerStack.PushLayer(layer);
        layer->OnAttach();
    }

PushOverlay()

void Elevate::Application::PushOverlay

(

Layer *

overlay

)

Definition at line 67 of file Application.cpp.

    {
        m_LayerStack.PushOverlay(overlay);
        overlay->OnAttach();
    }

Run()

void Elevate::Application::Run

(

)

Definition at line 194 of file Application.cpp.

    {
#ifdef EE_PLATFORM_WEB
        emscripten_set_main_loop_arg(WebMainLoop, this, 0, true);
#else
        while (m_Running)
        {
            EngineFrame();
        }
        Exit();
#endif
    }

SetGameState()

void Elevate::Application::SetGameState ( GameContextState  newState )

static

Definition at line 218 of file Application.cpp.

    {
        if (s_Instance->m_state != newState)
        {
            GameContextState oldState = s_Instance->m_state;
            s_Instance->m_state = newState;
 
            EE_CORE_INFO("GameContext state changed from {} to {}",
                GetGameContextStateName(oldState),
                GetGameContextStateName(newState));
 
            s_Instance->OnStateChange(oldState, newState);
        }
    }

Start()

void Elevate::Application::Start ( int  argc, char **  argv  )

static

Definition at line 105 of file Application.cpp.

    {
        //Log::Init(); // todo remove or uncomment depending on if the workarround worked
        EE_CORE_INFO("Initializing ElevateEngine...");
        auto app = CreateApplication();
        app->m_args = ApplicationArguments(argc, argv);
        EE_CORE_TRACE("Application Initialized.");
        app->Run();
 
#ifndef EE_PLATFORM_WEB
        delete app;
#endif
    }

Friends And Related Symbol Documentation

Elevate::Editor::EditorLayer

friend class Elevate::Editor::EditorLayer

friend

Definition at line 43 of file Application.h.

Member Data Documentation

FrameBuffer

std::unique_ptr<Framebuffer> Elevate::Application::FrameBuffer

Definition at line 60 of file Application.h.

---

The documentation for this class was generated from the following files:

• ElevateEngine/src/ElevateEngine/Core/Application.h
• ElevateEngine/src/ElevateEngine/Core/Application.cpp