feat(lighting): flicker proporcional al radi amb overrides per emissor

source/game/scenes/game_scene.cpp

@@ -259,6 +259,10 @@ namespace {
             Player::light_offset_x = (*room->offset)[0];
             Player::light_offset_y = (*room->offset)[1];
         }
+        if (room->flicker_wave_amplitude_ratio.has_value()) { Player::flicker_params.wave_amplitude_ratio = *room->flicker_wave_amplitude_ratio; }
+        if (room->flicker_wave_frequency_hz.has_value()) { Player::flicker_params.wave_frequency_hz = *room->flicker_wave_frequency_hz; }
+        if (room->flicker_noise_amplitude_ratio.has_value()) { Player::flicker_params.noise_amplitude_ratio = *room->flicker_noise_amplitude_ratio; }
+        if (room->flicker_noise_frequency_hz.has_value()) { Player::flicker_params.noise_frequency_hz = *room->flicker_noise_frequency_hz; }
     }
 
 }  // namespace
@@ -590,6 +594,14 @@ void GameScene::loadRoom(const std::string& yaml_path) {
     // CLOSED amb visited buit, momies i altres actors a la posició inicial.
     config_.map_yaml = yaml_path;
     Map::loadFrom(yaml_path);
+    // Refresquem els statics del Player a partir del YAML i tornem a
+    // aplicar l'override d'aquesta sala. Sense això, una sala amb
+    // `players: false` deixa `light_radius=0` i, en transicionar a una
+    // altra sala que no toqui el camp (o digui `players: true`), els
+    // jugadors no tornen a emetre — l'override actual és "additiu"
+    // sobre els statics existents, no un reset.
+    Player::loadFrom(config_.player_yaml);
+    applyRoomLightOverrideToPlayer();
     // Tilemap pre-blita els tiles a un buffer ARGB intern al ctor — sense
     // reconstruir-lo, la imatge de la sala anterior es queda fixada per a
     // sempre. PaintLayer captura `tileset_path_`/`tileset_cols_` per valor
@@ -1054,17 +1066,18 @@ void GameScene::applyLightingPass() {
         .g = Player::getLightColorG(),
         .b = Player::getLightColorB(),
     };
+    const Lighting::FlickerConfig PLAYER_FP = Player::getFlickerParams();
     for (const auto& p : players_) {
         if (p->isOutOfPlay()) { continue; }
         const auto C = p->getLightCenter();
-        emitters.push_back({.cx = C.x, .cy = C.y, .radius = PLAYER_R, .seed = p->getLightSeed(), .flicker = PLAYER_FLICKER, .color = PLAYER_COLOR});
+        emitters.push_back({.cx = C.x, .cy = C.y, .radius = PLAYER_R, .seed = p->getLightSeed(), .flicker = PLAYER_FLICKER, .color = PLAYER_COLOR, .flicker_params = PLAYER_FP});
     }
     for (const auto* e : entity_manager_.getEntities()) {
         const int R = e->getLightRadius();
         if (R <= 0) { continue; }
         const auto C = e->getLightCenter();
         const Lighting::Color COL{.r = e->getLightColorR(), .g = e->getLightColorG(), .b = e->getLightColorB()};
-        emitters.push_back({.cx = C.x, .cy = C.y, .radius = R, .seed = e->getLightSeed(), .flicker = e->getLightFlicker(), .color = COL});
+        emitters.push_back({.cx = C.x, .cy = C.y, .radius = R, .seed = e->getLightSeed(), .flicker = e->getLightFlicker(), .color = COL, .flicker_params = e->getFlickerParams()});
     }
     Lighting::apply(Screen::get().getCanvasArgb(),
         Screen::get().getCanvasWidth(),