refactor(scenes): flux centralitzat amb SceneId+ExitRequest; TitleScene attract → LOGO amb fade-to-black

source/game/scenes/intro_scene.cpp

@@ -17,6 +17,7 @@
 #include "core/ui/ui_config.hpp"
 #include "game/options.hpp"
 #include "game/scenes/placeholder_input.hpp"
+#include "game/scenes/scene_flow.hpp"
 #include "utils/defaults.hpp"
 #include "utils/defines.hpp"
 
@@ -30,10 +31,9 @@ namespace {
 
 }  // namespace
 
-IntroScene::IntroScene(std::shared_ptr<Text> font, DebugConfig::StartingPlayers starting_players, SceneFactory next_factory)
+IntroScene::IntroScene(std::shared_ptr<Text> font, DebugConfig::StartingPlayers starting_players)
     : font_(std::move(font)),
-      starting_players_(starting_players),
-      next_factory_(std::move(next_factory)) {
+      starting_players_(starting_players) {
     std::cout << "[scene] " << SCENE_NAME << " start (players=" << DebugConfig::toString(starting_players_) << ")\n";
 }
 
@@ -52,8 +52,11 @@ void IntroScene::update(int delta_ms) {
         return ev.type == SDL_EVENT_KEY_DOWN && !Placeholder::isReservedScancode(ev.key.scancode);
     });
 
-    if ((timer_ms_ <= 0 || SKIPPED) && next_factory_) {
-        next_scene_ = next_factory_(starting_players_);
+    if (timer_ms_ <= 0 || SKIPPED) {
+        exit_request_ = ExitRequest{
+            .next = SceneId::GAME,
+            .params = GameParams{.starting_players = starting_players_},
+        };
     }
 
     Notifier::get().update(delta_ms);