engine.hpp

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/*
Copyright (c) 2024 Rahul Satish Vadhyar
 
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:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
 
#pragma once
 
#ifdef ENABLE_EDITOR
// if the editor is enabled, then include the editorRenderer to get the
// rendering functions and classes of the editor.
#include "editorRenderer.hpp"
#endif
#include "swapchain.hpp"
#include "objectManager.hpp"
#include "textureManager.hpp"
namespace Chronos {
namespace Engine {
 
    class Engine {
    public:
    Engine();
 
    Chronos::Engine::ObjectManager objectManager;
 
    Chronos::Engine::TextureManager textureManager;
 
    int width = 800;
 
    int height = 600;
 
    GLFWwindow* window;
 
    float bgColor[3] = { 0.0f, 0.0f, 0.0f };
 
    void drawFrame();
 
    void resizeFrameBuffer();
 
    void setPresentMode(std::string mode);
 
#ifdef ENABLE_EDITOR
    void setEditorAddElementsCallback(void (*)());
#endif
    ~Engine();
 
    void changeMSAA(std::string);
 
    std::vector<std::string> getAvailableMSAAModes();
 
    Chronos::Engine::Device device = Chronos::Engine::Device();
 
    Chronos::Engine::SwapChain swapChain = Chronos::Engine::SwapChain();
 
    VkCommandPool commandPool;
 
    private:
    bool changeMSAAFlag = false;
    VkSampleCountFlagBits newMSAAMode;
 
    void changeMSAASettings();
 
    bool framebufferResized = false;
 
    uint32_t currentFrame = 0;
 
    VkInstance instance;
 
#ifdef ENABLE_VULKAN_VALIDATION_LAYERS
    VkDebugUtilsMessengerEXT debugMessenger;
#endif
 
    VkSurfaceKHR surface;
 
    std::vector<VkSemaphore> imageAvailableSemaphores;
    std::vector<VkSemaphore> renderFinishedSemaphores;
    std::vector<VkFence> inFlightFences;
    void initWindow();
 
    void initVulkan();
 
    void cleanup();
 
    void createInstance();
 
#ifdef ENABLE_VULKAN_VALIDATION_LAYERS
    void setupDebugMessenger();
#endif
    void createSurface();
 
    void createSyncObjects();
 
    void changePresentMode();
 
#ifdef ENABLE_EDITOR
    Chronos::Editor::EditorRenderer gui = Chronos::Editor::EditorRenderer();
#endif
#ifdef CHRONOS_PROFILING
    public:
    float getfps()
    {
        static float prevTime = 0.0f;
        float current_time = static_cast<float>(glfwGetTime());
        float fps = 1.0f / (current_time - prevTime);
        prevTime = current_time;
        return fps;
    }
 
    float getWaitTime() { return waitTime; }
    float getUpdateTime() { return updateTime; }
    float getCpuTime() { return cpuTime; }
    float getTotalTime() { return totalTime; }
    float getPresentTime() { return presentTime; }
 
    private:
    float waitTime = 0.0f;
    float updateTime = 0.0f;
    float cpuTime = 0.0f;
    float totalTime = 0.0f;
    float presentTime = 0.0f;
 
#endif
    };
 
};
};