feat(players): suport del segon jugador amb events amb player_id

source/game/entities/concrete/door.cpp

@@ -5,6 +5,7 @@
 
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/event_bus.hpp"
+#include "game/entities/player.hpp"
 
 namespace {
 
@@ -63,9 +64,15 @@ void Door::update(float delta_time) {
     }
 }
 
-void Door::onPlayerContact(Player* /*player*/) {
+void Door::onPlayerContact(Player* player) {
     if (state_ != State::OPEN || level_complete_emitted_) { return; }
-    if (bus_ != nullptr) { bus_->publish("level_complete"); }
+    if (bus_ != nullptr) {
+        bus_->publish(Event{
+            .name = "level_complete",
+            .payload = std::monostate{},
+            .player_id = (player != nullptr) ? player->getId() : -1,
+        });
+    }
     level_complete_emitted_ = true;
 }
 

source/game/entities/concrete/floor_trap.cpp

@@ -4,6 +4,7 @@
 
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/event_bus.hpp"
+#include "game/entities/player.hpp"
 
 FloorTrap::FloorTrap(const fkyaml::node& yaml) {
     name_ = yaml.contains("name") ? yaml["name"].get_value<std::string>() : std::string("floor_trap");
@@ -21,9 +22,15 @@ FloorTrap::FloorTrap(const fkyaml::node& yaml) {
     }
 }
 
-void FloorTrap::onPlayerContact(Player* /*player*/) {
+void FloorTrap::onPlayerContact(Player* player) {
     if (!isActive()) { return; }
-    if (bus_ != nullptr) { bus_->publish("player_hit", getDamage()); }
+    if (bus_ != nullptr) {
+        bus_->publish(Event{
+            .name = "player_hit",
+            .payload = getDamage(),
+            .player_id = (player != nullptr) ? player->getId() : -1,
+        });
+    }
 }
 
 REGISTER_ENTITY("floor_trap", FloorTrap)

source/game/entities/concrete/mummy.cpp

@@ -9,6 +9,7 @@
 
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/event_bus.hpp"
+#include "game/entities/player.hpp"
 #include "game/map/map.hpp"
 
 namespace {
@@ -294,8 +295,14 @@ void Mummy::applyChoice(Direction dir) {
     }
 }
 
-void Mummy::onPlayerContact(Player* /*player*/) {
-    if (bus_ != nullptr) { bus_->publish("player_hit", getDamage()); }
+void Mummy::onPlayerContact(Player* player) {
+    if (bus_ != nullptr) {
+        bus_->publish(Event{
+            .name = "player_hit",
+            .payload = getDamage(),
+            .player_id = (player != nullptr) ? player->getId() : -1,
+        });
+    }
 }
 
 REGISTER_ENTITY("mummy", Mummy)

source/game/entities/concrete/rolling_rock.cpp

@@ -4,6 +4,7 @@
 
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/event_bus.hpp"
+#include "game/entities/player.hpp"
 #include "game/map/map.hpp"
 
 namespace {
@@ -60,8 +61,14 @@ void RollingRock::step(float delta_time) {
     setDirection(0.0F, 0.0F);
 }
 
-void RollingRock::onPlayerContact(Player* /*player*/) {
-    if (bus_ != nullptr) { bus_->publish("player_hit", getDamage()); }
+void RollingRock::onPlayerContact(Player* player) {
+    if (bus_ != nullptr) {
+        bus_->publish(Event{
+            .name = "player_hit",
+            .payload = getDamage(),
+            .player_id = (player != nullptr) ? player->getId() : -1,
+        });
+    }
 }
 
 REGISTER_ENTITY("rolling_rock", RollingRock)

source/game/entities/concrete/wall_trap.cpp

@@ -4,6 +4,7 @@
 
 #include "game/entities/entity_factory.hpp"
 #include "game/entities/event_bus.hpp"
+#include "game/entities/player.hpp"
 
 WallTrap::WallTrap(const fkyaml::node& yaml) {
     name_ = yaml.contains("name") ? yaml["name"].get_value<std::string>() : std::string("wall_trap");
@@ -21,9 +22,15 @@ WallTrap::WallTrap(const fkyaml::node& yaml) {
     }
 }
 
-void WallTrap::onPlayerContact(Player* /*player*/) {
+void WallTrap::onPlayerContact(Player* player) {
     if (!isActive()) { return; }
-    if (bus_ != nullptr) { bus_->publish("player_hit", getDamage()); }
+    if (bus_ != nullptr) {
+        bus_->publish(Event{
+            .name = "player_hit",
+            .payload = getDamage(),
+            .player_id = (player != nullptr) ? player->getId() : -1,
+        });
+    }
 }
 
 REGISTER_ENTITY("wall_trap", WallTrap)

source/game/entities/event_bus.hpp

@@ -45,6 +45,11 @@ struct Event {
     std::string name;
     using Payload = std::variant<std::monostate, int, std::string, Entity*, TilePos, PaintedTile>;
     Payload payload;
+    // Jugador que ha originat (o provocat) l'event. -1 = sense jugador
+    // associat (events del món, com `sarcophagus_opened` des de la pròpia
+    // entitat). Usat per al HUD (dispatch a P1/P2) i per a regles futures
+    // de puntuació que atribueixin accions al jugador concret.
+    int player_id{-1};
 };
 
 class EventBus {

source/game/entities/player.cpp

@@ -222,13 +222,19 @@ void Player::updateFacingAndTurn(float delta_time, float vx, float vy) {
     }
 }
 
-Player::Player(const std::string& anim_key, float x, float y, const Controls& controls, const Map::Info& map_info, int paint_tile_index)
+Player::Player(const std::string& anim_key, int id, float x, float y, const Controls& controls, const Map::Info& map_info, int paint_tile_index)
     : AnimatedSprite(Resource::Cache::get().getAnimationData(anim_key)),
+      id_(id),
       controls_(controls),
       map_(map_info),
       paint_tile_index_(paint_tile_index) {
     setPos(x, y);
-    setCurrentAnimation("stand");
+    // Postura inicial mirant cap al jugador (cara avall), no de costat:
+    // forcem facing_ a DOWN i l'animació `stand_down` abans del primer
+    // frame d'input — el primer `update` la preservarà si l'usuari no
+    // prem cap tecla.
+    facing_ = Facing::DOWN;
+    setCurrentAnimation("stand_down");
 }
 
 void Player::update(float delta_time) {
@@ -308,7 +314,11 @@ void Player::update(float delta_time) {
         if (COL != last_tile_col_ || ROW != last_tile_row_) {
             last_tile_col_ = COL;
             last_tile_row_ = ROW;
-            bus_->publish("on_tile_entered", PaintedTile{.col = COL, .row = ROW, .tile_index = paint_tile_index_});
+            bus_->publish(Event{
+                .name = "on_tile_entered",
+                .payload = PaintedTile{.col = COL, .row = ROW, .tile_index = paint_tile_index_},
+                .player_id = id_,
+            });
         }
     }
 }

source/game/entities/player.hpp

@@ -42,10 +42,16 @@ class Player : public AnimatedSprite {
     // Ha de cridar-se abans d'instanciar Player; GameScene ho fa al ctor.
     static void loadFrom(const std::string& yaml_path);
 
-    Player(const std::string& anim_key, float x, float y, const Controls& controls, const Map::Info& map_info, int paint_tile_index = -1);
+    Player(const std::string& anim_key, int id, float x, float y, const Controls& controls, const Map::Info& map_info, int paint_tile_index = -1);
 
     void update(float delta_time) override;
 
+    // Identificador local (0 = P1, 1 = P2…). S'usa als events del bus
+    // perquè els consumidors (HUD, futures regles de puntuació) sàpiguen
+    // quin jugador ha originat l'event. No té cap vinculació amb la
+    // xarxa — és únic per dins del procés.
+    [[nodiscard]] auto getId() const -> int { return id_; }
+
     // Y de la base del jugador (cara inferior de la caixa de colisió). Usada
     // per al Z-order contra els sarcs: peus per sobre d'un sarc → darrere;
     // per sota → davant.
@@ -104,6 +110,7 @@ class Player : public AnimatedSprite {
         float (Player::*get_pos)() const,
         void (Player::*set_pos)(float));
 
+    int id_{-1};
     Controls controls_;
     // Còpia plana de la geometria del mapa + punters a `collides`/
     // `inside_playfield`. POD trivial; copiada al ctor i no muta durant