engine.h

Go to the documentation of this file.

#pragma once
 
#include "core/input/input_manager.h"
#include "core/io/file_system.h"
#include "core/time_manager.h"
 
 
enum RendererType { OPENGL, METAL };
 
class Renderer;
class OpenglShader;
class OpenglRenderer;
 
class Engine {
 
public:
    struct {
        int width                   = 0;
        int height                  = 0;
        const char* title           = "[EMBER_ENGINE] - Window";
        const SDL_DisplayMode* data = nullptr;
        bool bFullscreen            = false;
        int bbWidth = 0, bbHeight = 0; // backbuffer
        SDL_Window* window{};
    } Window;
 
    struct {
        SDL_AudioDeviceID device_id = 0;
        SDL_AudioSpec spec{};
        float global_volume = 1.f;
    } Audio;
 
    Ember_VFS VirtualFileSystem{};
 
    void ResizeWindow(int w, int h) const;
 
    Renderer* GetRenderer() const;
 
    InputManager* GetInputManager() const;
 
    TimeManager* GetTimeManager() const;
 
    void Shutdown();
 
 
    bool Initialize(const char* title, int width, int height, RendererType type, Uint64 flags = 0);
 
 
private:
    Renderer* _renderer          = nullptr;
    InputManager* _input_manager = nullptr;
    TimeManager* _time_manager   = nullptr;
 
 
    Renderer* CreateRenderer(SDL_Window* window, int view_width, int view_height, RendererType type);
 
    Renderer* CreateRendererGL(SDL_Window* window, int view_width, int view_height);
 
    /*
        @brief Create a renderer instance internally
        - Backend `Metal`
        TODO: implement metal
 
     * * api
 
     */
    Renderer* CreateRendererMTL(SDL_Window* window, int view_width, int view_height);
};
 
 
extern std::unique_ptr<Engine> GEngine;
 
extern ma_engine audio_engine;