feat(mummy): so mummy_hurt en colpejada de fuet

source/game/entities/concrete/mummy.cpp

@@ -8,11 +8,14 @@
 #include <string>
 #include <utility>
 
+#include "core/audio/audio.hpp"
+#include "core/resources/resource_cache.hpp"
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/entity_manager.hpp"
 #include "game/entities/event_bus.hpp"
 #include "game/entities/player.hpp"
 #include "game/map/map.hpp"
+#include "utils/defaults.hpp"
 
 namespace {
 
@@ -133,6 +136,14 @@ Mummy::Mummy(const fkyaml::node& yaml)
         if (h.contains("whippable")) {
             whippable_ = h["whippable"].get_value<bool>();
         }
+        // So opcional: el basename val tant de clau al Resource::Cache com de
+        // path (`Defaults::Paths::AUDIO_SOUNDS_DIR + key`). Mateix patró que
+        // els sons del Player. Si el camp manca, la clau queda buida i
+        // `enterHurt` no dispara playSound.
+        if (h.contains("sound")) {
+            hurt_config_.sound_key = h["sound"].get_value<std::string>();
+            Resource::Cache::get().loadSound(hurt_config_.sound_key, std::string{Defaults::Paths::AUDIO_SOUNDS_DIR} + hurt_config_.sound_key);
+        }
     }
 }
 
@@ -511,6 +522,9 @@ void Mummy::enterHurt(Direction flee_dir) {
     state_ = State::HURT;
     hurt_remaining_s_ = hurt_config_.duration_s;
     hurt_speed_ = (hurt_config_.speed_px_per_s > 0.0F) ? hurt_config_.speed_px_per_s : speed_;
+    if (!hurt_config_.sound_key.empty() && Audio::get() != nullptr) {
+        Audio::get()->playSound(hurt_config_.sound_key, Audio::Group::GAME);
+    }
 
     const Direction CHOSEN = chooseHurtDirection(flee_dir);
     if (CHOSEN == Direction::NONE) {