adecentat el codi. lo proxim fa falta mirar i pollar events

source/game/scenes/test.hpp

@@ -2,6 +2,8 @@
 
 #pragma once
 
+#include <SDL3/SDL.h>
+
 #include "scene.hpp"
 
 struct GameContext;
@@ -9,9 +11,11 @@ struct GameContext;
 class Test final : public Scene {
    public:
     explicit Test(GameContext& context);
-    auto update() -> Scenes override;
+    auto update(int delta_ms) -> Scenes override;
     void render() override;
 
    private:
     GameContext& context_;
+    int color_{0};
+    Uint64 time_elapsed_{0};
 };