feat(stats): Player com a font de veritat de vides/score/tresors i sarcs amb recompensa

source/game/scenes/game_scene.cpp

@@ -26,6 +26,7 @@
 #include "core/ui/ui_config.hpp"
 #include "external/fkyaml_node.hpp"
 #include "game/entities/concrete/dust.hpp"
+#include "game/entities/concrete/sarcophagus.hpp"
 #include "game/entities/concrete/whip_attack.hpp"
 #include "game/entities/entity.hpp"
 #include "game/entities/entity_factory.hpp"
@@ -321,6 +322,12 @@ GameScene::GameScene(Config config)
     entity_manager_.getBus().subscribe("player_disabled", [this](const Event& ev) {
         onPlayerDisabled(ev.player_id);
     });
+    // `sarcophagus_opened`: extret a `onSarcophagusOpened` per acotar
+    // la complexitat cognitiva del ctor (mateix patró que `player_killed`
+    // i `player_disabled`).
+    entity_manager_.getBus().subscribe("sarcophagus_opened", [this](const Event& ev) {
+        onSarcophagusOpened(ev);
+    });
 
     // Polvet: precarreguem el surface del Dust una sola vegada perquè
     // els spawns runtime de l'entitat no facin disc al primer salt.
@@ -732,6 +739,21 @@ void GameScene::onPlayerDisabled(int player_id) {
     players_active_[player_id] = false;
 }
 
+void GameScene::onSarcophagusOpened(const Event& ev) {
+    // `player_id < 0`: pintada sense atribució (broadcast inicial). No
+    // hauria de tancar mai un sarc, però per defensa ignorem.
+    if (ev.player_id < 0) { return; }
+    const auto IDX = static_cast<std::size_t>(ev.player_id);
+    if (IDX >= players_.size()) { return; }
+    const auto* ent = std::get_if<Entity*>(&ev.payload);
+    if (ent == nullptr || *ent == nullptr) { return; }
+    auto* sarc = dynamic_cast<Sarcophagus*>(*ent);
+    if (sarc == nullptr) { return; }
+    auto& p = *players_[IDX];
+    p.addScore(sarc->getPointsReward());
+    p.addTreasures(sarc->getTreasuresReward());
+}
+
 void GameScene::preloadGameOverAssets() const {
     // Pre-load del so del countdown: el dispara `updateGameOverFlow`
     // cada vegada que canvia el número visible de CONTINUE? (incloent