Esquelet inicial: finestra negra i primera escena

source/core/rendering/screen.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <SDL3/SDL.h>
+
+#include <cstdint>
+
+class Screen {
+   public:
+    static void init();
+    static void destroy();
+    static auto get() -> Screen*;
+
+    void clear(std::uint8_t r = 0, std::uint8_t g = 0, std::uint8_t b = 0);
+    void present();
+
+    [[nodiscard]] auto getRenderer() const -> SDL_Renderer* { return renderer_; }
+    [[nodiscard]] auto getTarget() const -> SDL_Texture* { return game_texture_; }
+
+   private:
+    Screen();
+    ~Screen();
+
+    static Screen* instance;
+
+    SDL_Window* window_{nullptr};
+    SDL_Renderer* renderer_{nullptr};
+    SDL_Texture* game_texture_{nullptr};
+};