Renderer.h

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#pragma once
 
#include <memory>
#include <optional>
#include <SDL3/SDL_render.h>
#include <SDL3/SDL_timer.h>
 
#include "../Core/Core.h"
#include "../Math.h"
 
namespace Shit {
    class Sprite;
    class CameraComponent;

    class SHIT_API Renderer final {
    public:
        Renderer(const Renderer&) = delete;
        Renderer& operator=(const Renderer&) = delete;
        Renderer(Renderer&&) = default;
        Renderer& operator=(Renderer&&) = default;
 
        // --- 静态API ---
        static Renderer& GetInstance();
        static bool Init() { return GetInstance().init(); }                        
        static void ClearScreen() { GetInstance().clearScreen(); }                 
        static void Present() { GetInstance().present(); }                         
        static SDL_Renderer* GetRenderer() { return GetInstance().m_renderer.get(); } 
 
        static int GetLogicalWidth() { return GetInstance().m_logicalWidth; }      
        static int GetLogicalHeight() { return GetInstance().m_logicalHeight; }    

        static void DrawSprite(const Sprite& sprite, const Vector2& position, const std::optional<Vector2>& size = std::nullopt);
 
    private:
        Renderer() = default;
        ~Renderer() = default;
 
        bool init();
        void clearScreen();
        void present();
 
        struct SDLRendererDeleter {
            void operator()(SDL_Renderer* renderer) const {
                if (renderer) SDL_DestroyRenderer(renderer);
            }
        };
 
        std::unique_ptr<SDL_Renderer, SDLRendererDeleter> m_renderer;
        int m_logicalWidth = 1280;
        int m_logicalHeight = 720;
    };
}