Engine.hpp

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/**********************************************************************************/
/* This file is part of Berserk Engine project                                    */
/* https://github.com/EgorOrachyov/Berserk                                        */
/**********************************************************************************/
/* MIT License                                                                    */
/*                                                                                */
/* Copyright (c) 2018 - 2021 Egor Orachyov                                        */
/*                                                                                */
/* Permission is hereby granted, free of charge, to any person obtaining a copy   */
/* of this software and associated documentation files (the "Software"), to deal  */
/* in the Software without restriction, including without limitation the rights   */
/* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell      */
/* copies of the Software, and to permit persons to whom the Software is          */
/* furnished to do so, subject to the following conditions:                       */
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/* The above copyright notice and this permission notice shall be included in all */
/* copies or substantial portions of the Software.                                */
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#ifndef BERSERK_ENGINE_HPP
#define BERSERK_ENGINE_HPP
 
#include <core/Config.hpp>
#include <core/EventDispatcher.hpp>
#include <core/Scheduler.hpp>
#include <core/Thread.hpp>
#include <core/io/Config.hpp>
#include <platform/FileSystem.hpp>
#include <platform/Input.hpp>
#include <platform/Output.hpp>
#include <platform/WindowManager.hpp>
#include <render/RenderEngine.hpp>
#include <resource/ResourceManager.hpp>
#include <rhi/RHIDevice.hpp>
 
#include <atomic>
#include <chrono>
#include <memory>
#include <thread>
 
BRK_NS_BEGIN
 
class Engine final {
public:
    BRK_API Engine() = default;
    BRK_API ~Engine();
 
    BRK_API void RequestClose();
 
    BRK_API bool CloseRequested();
 
    BRK_API const Config &GetConfig();
 
    BRK_API Output &GetOutput();
 
    BRK_API FileSystem &GetFileSystem();
 
    BRK_API Scheduler &GetScheduler();
 
    BRK_API EventDispatcher &GetEventDispatcher();
 
    BRK_API WindowManager &GetWindowManager();
 
    BRK_API Input &GetInput();
 
    BRK_API RHIDevice &GetRHIDevice();
 
    BRK_API Thread &GetRHIThread();
 
    BRK_API RenderEngine &GetRenderEngine();
 
    BRK_API ResourceManager &GetResourceManager();
 
    BRK_API std::thread::id GetGameThreadId() const;
 
    BRK_API float GetDeltaTime() const;
 
    BRK_API float GetTime() const;
 
    BRK_API static Engine &Instance();
 
private:
    friend class Application;
 
    void InitCore();
    void InitEngine();
    void ConfigureWindow();
    void SetWindowManager(std::shared_ptr<WindowManager> windowManager);
    void SetInput(std::shared_ptr<Input> input);
    void SetRHIDevice(std::shared_ptr<RHIDevice> device);
    void SetRHIThread(std::shared_ptr<Thread> thread);
    void Update(float t, float dt);
 
private:
    Config mConfig; 
    std::unique_ptr<Output> mOutput;                   
    std::unique_ptr<FileSystem> mFileSystem;           
    std::unique_ptr<Scheduler> mScheduler;             
    std::unique_ptr<EventDispatcher> mEventDispatcher; 
    std::shared_ptr<WindowManager> mWindowManager; 
    std::shared_ptr<Input> mInput;                 
    std::shared_ptr<RHIDevice> mRHIDevice;         
    std::shared_ptr<Thread> mRHIThread;            
    std::unique_ptr<RenderEngine> mRenderEngine;       
    std::unique_ptr<ResourceManager> mResourceManager; 
    std::thread::id mGameThreadID;           
    std::atomic_bool mCloseRequested{false}; 
    float mDt = 0.0f; 
    float mT = 0.0f;  
    static Engine *gEngine;
};
 
BRK_NS_END
 
#endif//BERSERK_ENGINE_HPP