From 0ee117135ce3fcac1b5cd93400f5822c0735d665 Mon Sep 17 00:00:00 2001
From: Sergio Valor <jaildesigner@gmail.com>
Date: Thu, 14 May 2026 21:02:43 +0200
Subject: [PATCH] neteja tidy a source/core/system i audio amb fixes d'arrel

---
 source/core/audio/audio.cpp                   |   2 +-
 source/core/audio/audio.hpp                   |   5 +-
 source/core/audio/jail_audio.hpp              | 147 ++++++++++--------
 source/core/system/director.cpp               |  41 ++---
 source/core/system/director.h                 |  19 +--
 .../external/{stb_vorbis.c => stb_vorbis.h}   |   0
 source/game/game.h                            |  32 ++--
 source/game/scenes/instructions.h             |   6 +-
 source/game/scenes/intro.h                    |   2 +-
 source/game/scenes/logo.h                     |   2 +-
 source/game/scenes/title.h                    |   4 +-
 11 files changed, 145 insertions(+), 115 deletions(-)
 rename source/external/{stb_vorbis.c => stb_vorbis.h} (100%)

diff --git a/source/core/audio/audio.cpp b/source/core/audio/audio.cpp
index 0384824..aebaaa5 100644
--- a/source/core/audio/audio.cpp
+++ b/source/core/audio/audio.cpp
@@ -8,7 +8,7 @@
 // Implementación de stb_vorbis (debe estar ANTES de incluir jail_audio.hpp).
 // clang-format off
 #undef STB_VORBIS_HEADER_ONLY
-#include "external/stb_vorbis.c"
+#include "external/stb_vorbis.h"
 // stb_vorbis.c filtra les macros L, C i R (i PLAYBACK_*) al TU. Les netegem
 // perquè xocarien amb noms de paràmetres de plantilla en altres headers.
 #undef L
diff --git a/source/core/audio/audio.hpp b/source/core/audio/audio.hpp
index 260b406..dc02f50 100644
--- a/source/core/audio/audio.hpp
+++ b/source/core/audio/audio.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cmath>    // Para lround
 #include <cstdint>  // Para int8_t, uint8_t
 #include <string>   // Para string
 #include <utility>  // Para move
@@ -59,8 +60,8 @@ class Audio {
 
     // --- Helpers de conversió per a la capa de presentació ---
     // UI (menús, notificacions) manega enters 0..100; internament viu float 0..1.
-    static constexpr auto toPercent(float volume) -> int {
-        return static_cast<int>((volume * 100.0F) + 0.5F);
+    static auto toPercent(float volume) -> int {
+        return static_cast<int>(std::lround(volume * 100.0F));
     }
     static constexpr auto fromPercent(int percent) -> float {
         return static_cast<float>(percent) / 100.0F;
diff --git a/source/core/audio/jail_audio.hpp b/source/core/audio/jail_audio.hpp
index bafdf05..fd2ebf2 100644
--- a/source/core/audio/jail_audio.hpp
+++ b/source/core/audio/jail_audio.hpp
@@ -12,7 +12,7 @@
 #include <vector>    // Para std::vector
 
 #define STB_VORBIS_HEADER_ONLY
-#include "external/stb_vorbis.c"  // Para stb_vorbis_open_memory i streaming
+#include "external/stb_vorbis.h"  // Para stb_vorbis_open_memory i streaming
 
 // Deleter stateless per a buffers reservats amb `SDL_malloc` / `SDL_LoadWAV*`.
 // Compatible amb `std::unique_ptr<Uint8[], SDLFreeDeleter>` — zero size
@@ -26,14 +26,14 @@ struct SDLFreeDeleter {
 };
 
 // --- Public Enums ---
-enum JA_Channel_state {
+enum JA_Channel_state : std::uint8_t {
     JA_CHANNEL_INVALID,
     JA_CHANNEL_FREE,
     JA_CHANNEL_PLAYING,
     JA_CHANNEL_PAUSED,
     JA_SOUND_DISABLED,
 };
-enum JA_Music_state {
+enum JA_Music_state : std::uint8_t {
     JA_MUSIC_INVALID,
     JA_MUSIC_PLAYING,
     JA_MUSIC_PAUSED,
@@ -42,7 +42,7 @@ enum JA_Music_state {
 };
 
 // --- Struct Definitions ---
-enum {
+enum : std::uint8_t {
     JA_MAX_SIMULTANEOUS_CHANNELS = 20,
     JA_MAX_GROUPS = 2
 };
@@ -57,10 +57,10 @@ struct JA_Sound_t {
 
 struct JA_Channel_t {
     JA_Sound_t* sound{nullptr};
+    SDL_AudioStream* stream{nullptr};
     int pos{0};
     int times{0};
     int group{0};
-    SDL_AudioStream* stream{nullptr};
     JA_Channel_state state{JA_CHANNEL_FREE};
 };
 
@@ -199,63 +199,86 @@ inline void JA_PreFillOutgoing(JA_Music_t* music, int duration_ms) {
 
 // --- Core Functions ---
 
+// Fade-out de la música sortint (crossfade o fade-out a silenci). En acabar
+// destrueix l'AudioStream sortint.
+inline void JA_UpdateOutgoingFade() {
+    if ((outgoing_music.stream == nullptr) || !outgoing_music.fade.active) {
+        return;
+    }
+    const Uint64 elapsed = SDL_GetTicks() - outgoing_music.fade.start_time;
+    if (elapsed >= static_cast<Uint64>(outgoing_music.fade.duration_ms)) {
+        SDL_DestroyAudioStream(outgoing_music.stream);
+        outgoing_music.stream = nullptr;
+        outgoing_music.fade.active = false;
+        return;
+    }
+    const float percent = static_cast<float>(elapsed) / static_cast<float>(outgoing_music.fade.duration_ms);
+    SDL_SetAudioStreamGain(outgoing_music.stream, outgoing_music.fade.initial_volume * (1.0F - percent));
+}
+
+// Fade-in de la música entrant (segona meitat d'un crossfade).
+inline void JA_UpdateIncomingFade() {
+    if (!incoming_fade.active) {
+        return;
+    }
+    const Uint64 elapsed = SDL_GetTicks() - incoming_fade.start_time;
+    if (elapsed >= static_cast<Uint64>(incoming_fade.duration_ms)) {
+        incoming_fade.active = false;
+        SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
+        return;
+    }
+    const float percent = static_cast<float>(elapsed) / static_cast<float>(incoming_fade.duration_ms);
+    SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume * percent);
+}
+
+// Manté l'stream de la música activa alimentat i para la reproducció si
+// el vorbis s'ha esgotat i no queden loops.
+inline void JA_UpdateCurrentMusic() {
+    if (!JA_musicEnabled || current_music == nullptr || current_music->state != JA_MUSIC_PLAYING) {
+        return;
+    }
+    JA_UpdateIncomingFade();
+    JA_PumpMusic(current_music);
+    if (current_music->times == 0 && SDL_GetAudioStreamAvailable(current_music->stream) == 0) {
+        JA_StopMusic();
+    }
+}
+
+// Avança l'estat d'un sol canal de so: alimenta més samples mentre quedin
+// loops; si ja no queden i l'stream s'ha buidat, atura el canal.
+inline void JA_UpdateSoundChannel(int channel_index) {
+    JA_Channel_t& ch = channels[channel_index];
+    if (ch.state != JA_CHANNEL_PLAYING) {
+        return;
+    }
+    if (ch.times == 0) {
+        if (SDL_GetAudioStreamAvailable(ch.stream) == 0) {
+            JA_StopChannel(channel_index);
+        }
+        return;
+    }
+    if (static_cast<Uint32>(SDL_GetAudioStreamAvailable(ch.stream)) < (ch.sound->length / 2)) {
+        SDL_PutAudioStreamData(ch.stream, ch.sound->buffer.get(), ch.sound->length);
+        if (ch.times > 0) {
+            ch.times--;
+        }
+    }
+}
+
+// Avança tots els canals de so actius.
+inline void JA_UpdateSoundChannels() {
+    if (!JA_soundEnabled) {
+        return;
+    }
+    for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; ++i) {
+        JA_UpdateSoundChannel(i);
+    }
+}
+
 inline void JA_Update() {
-    // --- Outgoing music fade-out (crossfade o fade-out a silencio) ---
-    if ((outgoing_music.stream != nullptr) && outgoing_music.fade.active) {
-        Uint64 now = SDL_GetTicks();
-        Uint64 elapsed = now - outgoing_music.fade.start_time;
-        if (elapsed >= (Uint64)outgoing_music.fade.duration_ms) {
-            SDL_DestroyAudioStream(outgoing_music.stream);
-            outgoing_music.stream = nullptr;
-            outgoing_music.fade.active = false;
-        } else {
-            float percent = (float)elapsed / (float)outgoing_music.fade.duration_ms;
-            SDL_SetAudioStreamGain(outgoing_music.stream, outgoing_music.fade.initial_volume * (1.0F - percent));
-        }
-    }
-
-    // --- Current music ---
-    if (JA_musicEnabled && (current_music != nullptr) && current_music->state == JA_MUSIC_PLAYING) {
-        // Fade-in (parte de un crossfade)
-        if (incoming_fade.active) {
-            Uint64 now = SDL_GetTicks();
-            Uint64 elapsed = now - incoming_fade.start_time;
-            if (elapsed >= (Uint64)incoming_fade.duration_ms) {
-                incoming_fade.active = false;
-                SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
-            } else {
-                float percent = (float)elapsed / (float)incoming_fade.duration_ms;
-                SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume * percent);
-            }
-        }
-
-        // Streaming: rellenem l'stream fins al low-water-mark i parem si el
-        // vorbis s'ha esgotat i no queden loops.
-        JA_PumpMusic(current_music);
-        if (current_music->times == 0 && SDL_GetAudioStreamAvailable(current_music->stream) == 0) {
-            JA_StopMusic();
-        }
-    }
-
-    // --- Sound channels ---
-    if (JA_soundEnabled) {
-        for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; ++i) {
-            if (channels[i].state == JA_CHANNEL_PLAYING) {
-                if (channels[i].times != 0) {
-                    if ((Uint32)SDL_GetAudioStreamAvailable(channels[i].stream) < (channels[i].sound->length / 2)) {
-                        SDL_PutAudioStreamData(channels[i].stream, channels[i].sound->buffer.get(), channels[i].sound->length);
-                        if (channels[i].times > 0) {
-                            channels[i].times--;
-                        }
-                    }
-                } else {
-                    if (SDL_GetAudioStreamAvailable(channels[i].stream) == 0) {
-                        JA_StopChannel(i);
-                    }
-                }
-            }
-        }
-    }
+    JA_UpdateOutgoingFade();
+    JA_UpdateCurrentMusic();
+    JA_UpdateSoundChannels();
 }
 
 inline void JA_Init(const int freq, const SDL_AudioFormat format, const int num_channels) {
@@ -586,7 +609,7 @@ inline void JA_EnableMusic(const bool value) {
 inline auto JA_LoadSound(uint8_t* buffer, uint32_t size) -> JA_Sound_t* {
     auto sound = std::make_unique<JA_Sound_t>();
     Uint8* raw = nullptr;
-    if (!SDL_LoadWAV_IO(SDL_IOFromMem(buffer, size), 1, &sound->spec, &raw, &sound->length)) {
+    if (!SDL_LoadWAV_IO(SDL_IOFromMem(buffer, size), true, &sound->spec, &raw, &sound->length)) {
         std::cout << "Failed to load WAV from memory: " << SDL_GetError() << '\n';
         return nullptr;
     }
diff --git a/source/core/system/director.cpp b/source/core/system/director.cpp
index b34488a..73d394a 100644
--- a/source/core/system/director.cpp
+++ b/source/core/system/director.cpp
@@ -1,9 +1,10 @@
 #include "core/system/director.h"
 
 #include <SDL3/SDL.h>
-#include <errno.h>   // for errno, EEXIST, EACCES, ENAMETOO...
-#include <stdio.h>   // for printf, perror
-#include <string.h>  // for strcmp
+
+#include <cerrno>   // for errno, EEXIST, EACCES, ENAMETOO...
+#include <cstdio>   // for printf, perror
+#include <cstring>  // for strcmp
 #ifndef __EMSCRIPTEN__
 #include <sys/stat.h>  // for mkdir, stat, S_IRWXU
 #include <unistd.h>    // for getuid
@@ -40,7 +41,7 @@
 
 // Constructor
 Director::Director(int argc, const char *argv[]) {
-    std::cout << "Game start" << std::endl;
+    std::cout << "Game start" << '\n';
     // Inicializa variables
     section = new section_t();
     section->name = SECTION_PROG_LOGO;
@@ -97,7 +98,7 @@ Director::Director(int argc, const char *argv[]) {
         const std::string pack_path = executablePath + "resources.pack";
 #endif
         if (!ResourceHelper::initializeResourceSystem(pack_path, enable_fallback)) {
-            std::cerr << "Fatal: resource system init failed (missing resources.pack?)" << std::endl;
+            std::cerr << "Fatal: resource system init failed (missing resources.pack?)" << '\n';
             exit(EXIT_FAILURE);
         }
     }
@@ -197,7 +198,7 @@ Director::~Director() {
 
     ResourceHelper::shutdownResourceSystem();
 
-    std::cout << "\nBye!" << std::endl;
+    std::cout << "\nBye!" << '\n';
 }
 
 // Inicializa el objeto input
@@ -256,14 +257,14 @@ void Director::initJailAudio() {
 }
 
 // Arranca SDL y crea la ventana
-bool Director::initSDL() {
+auto Director::initSDL() -> bool {
     // Indicador de éxito
     bool success = true;
 
     // Inicializa SDL
     if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_GAMEPAD)) {
         if (Options::settings.console) {
-            std::cout << "SDL could not initialize!\nSDL Error: " << SDL_GetError() << std::endl;
+            std::cout << "SDL could not initialize!\nSDL Error: " << SDL_GetError() << '\n';
         }
         success = false;
     } else {
@@ -278,18 +279,18 @@ bool Director::initSDL() {
             0);
         if (window == nullptr) {
             if (Options::settings.console) {
-                std::cout << "Window could not be created!\nSDL Error: " << SDL_GetError() << std::endl;
+                std::cout << "Window could not be created!\nSDL Error: " << SDL_GetError() << '\n';
             }
             success = false;
         } else {
             SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
 
             // Crea un renderizador para la ventana
-            renderer = SDL_CreateRenderer(window, NULL);
+            renderer = SDL_CreateRenderer(window, nullptr);
 
             if (renderer == nullptr) {
                 if (Options::settings.console) {
-                    std::cout << "Renderer could not be created!\nSDL Error: " << SDL_GetError() << std::endl;
+                    std::cout << "Renderer could not be created!\nSDL Error: " << SDL_GetError() << '\n';
                 }
                 success = false;
             } else {
@@ -315,17 +316,17 @@ bool Director::initSDL() {
     }
 
     if (Options::settings.console) {
-        std::cout << std::endl;
+        std::cout << '\n';
     }
     return success;
 }
 
 // Crea el indice de ficheros
-bool Director::setFileList() {
+auto Director::setFileList() -> bool {
 #ifdef MACOS_BUNDLE
     const std::string prefix = "/../Resources";
 #else
-    const std::string prefix = "";
+    const std::string prefix;
 #endif
 
     // Ficheros de configuración
@@ -488,7 +489,7 @@ void Director::createSystemFolder(const std::string &folder) {
     // En Emscripten no necesitamos crear carpetas (MEMFS las crea automáticamente)
     (void)folder;
 #else
-    struct stat st = {0};
+    struct stat st = {.st_dev = 0};
     if (stat(systemFolder.c_str(), &st) == -1) {
         errno = 0;
 #ifdef _WIN32
@@ -537,10 +538,14 @@ void Director::handleSectionTransition() {
         case SECTION_PROG_GAME:
             targetSection = ActiveSection::Game;
             break;
+        default:
+            break;
     }
 
     // Si no ha cambiado, no hay nada que hacer
-    if (targetSection == activeSection) return;
+    if (targetSection == activeSection) {
+        return;
+    }
 
     // Destruye la sección anterior
     logo.reset();
@@ -571,7 +576,7 @@ void Director::handleSectionTransition() {
 }
 
 // Ejecuta un frame del juego
-SDL_AppResult Director::iterate() {
+auto Director::iterate() -> SDL_AppResult {
 #ifdef __EMSCRIPTEN__
     // En WASM no se puede salir: reinicia al logo
     if (section->name == SECTION_PROG_QUIT) {
@@ -611,7 +616,7 @@ SDL_AppResult Director::iterate() {
 }
 
 // Procesa un evento
-SDL_AppResult Director::handleEvent(SDL_Event *event) {
+auto Director::handleEvent(SDL_Event *event) -> SDL_AppResult {
 #ifndef __EMSCRIPTEN__
     // Evento de salida de la aplicación
     if (event->type == SDL_EVENT_QUIT) {
diff --git a/source/core/system/director.h b/source/core/system/director.h
index 1984d14..bc3f5f3 100644
--- a/source/core/system/director.h
+++ b/source/core/system/director.h
@@ -2,6 +2,7 @@
 
 #include <SDL3/SDL.h>
 
+#include <cstdint>  // for uint8_t
 #include <memory>
 #include <string>  // for string, basic_string
 class Game;
@@ -11,7 +12,7 @@ class Title;
 struct section_t;
 
 // Secciones activas del Director
-enum class ActiveSection { None,
+enum class ActiveSection : std::uint8_t { None,
     Logo,
     Intro,
     Title,
@@ -36,19 +37,19 @@ class Director {
     std::string systemFolder;    // Carpeta del sistema donde guardar datos
 
     // Inicializa jail_audio
-    void initJailAudio();
+    static void initJailAudio();
 
     // Arranca SDL y crea la ventana
-    bool initSDL();
+    auto initSDL() -> bool;
 
     // Inicializa el objeto input
-    void initInput();
+    static void initInput();
 
     // Crea el indice de ficheros
-    bool setFileList();
+    auto setFileList() -> bool;
 
     // Comprueba los parametros del programa
-    void checkProgramArguments(int argc, const char *argv[]);
+    static void checkProgramArguments(int argc, const char *argv[]);
 
     // Crea la carpeta del sistema donde guardar datos
     void createSystemFolder(const std::string &folder);
@@ -64,11 +65,11 @@ class Director {
     ~Director();
 
     Director(const Director &) = delete;
-    Director &operator=(const Director &) = delete;
+    auto operator=(const Director &) -> Director & = delete;
 
     // Ejecuta un frame del juego
-    SDL_AppResult iterate();
+    auto iterate() -> SDL_AppResult;
 
     // Procesa un evento
-    SDL_AppResult handleEvent(SDL_Event *event);
+    auto handleEvent(SDL_Event *event) -> SDL_AppResult;
 };
diff --git a/source/external/stb_vorbis.c b/source/external/stb_vorbis.h
similarity index 100%
rename from source/external/stb_vorbis.c
rename to source/external/stb_vorbis.h
diff --git a/source/game/game.h b/source/game/game.h
index 160ce94..2a101ee 100644
--- a/source/game/game.h
+++ b/source/game/game.h
@@ -266,16 +266,16 @@ class Game {
     void loadMedia();
 
     // Carga el fichero de puntos
-    bool loadScoreFile();
+    auto loadScoreFile() -> bool;
 
     // Carga el fichero de datos para la demo
-    bool loadDemoFile();
+    auto loadDemoFile() -> bool;
 
     // Guarda el fichero de puntos
-    bool saveScoreFile();
+    auto saveScoreFile() -> bool;
 
     // Guarda el fichero de datos para la demo
-    bool saveDemoFile();
+    auto saveDemoFile() -> bool;
 
     // Inicializa las formaciones enemigas
     void initEnemyFormations();
@@ -299,7 +299,7 @@ class Game {
     void updateHiScore();
 
     // Transforma un valor numérico en una cadena de 6 cifras
-    std::string updateScoreText(Uint32 num);
+    auto updateScoreText(Uint32 num) -> std::string;
 
     // Pinta el marcador en pantalla usando un objeto texto
     void renderScoreBoard();
@@ -326,7 +326,7 @@ class Game {
     void renderBalloons();
 
     // Crea un globo nuevo en el vector de globos
-    Uint8 createBalloon(float x, int y, Uint8 kind, float velx, float speed, Uint16 stoppedcounter);
+    auto createBalloon(float x, int y, Uint8 kind, float velx, float speed, Uint16 stoppedcounter) -> Uint8;
 
     // Crea una PowerBall
     void createPowerBall();
@@ -359,7 +359,7 @@ class Game {
     void freeBalloons();
 
     // Comprueba la colisión entre el jugador y los globos activos
-    bool checkPlayerBalloonCollision(Player *player);
+    auto checkPlayerBalloonCollision(Player *player) -> bool;
 
     // Comprueba la colisión entre el jugador y los items
     void checkPlayerItemCollision(Player *player);
@@ -386,7 +386,7 @@ class Game {
     void renderItems();
 
     // Devuelve un item en función del azar
-    Uint8 dropItem();
+    auto dropItem() -> Uint8;
 
     // Crea un objeto item
     void createItem(Uint8 kind, float x, float y);
@@ -422,13 +422,13 @@ class Game {
     void evaluateAndSetMenace();
 
     // Obtiene el valor de la variable
-    Uint8 getMenace();
+    auto getMenace() -> Uint8;
 
     // Establece el valor de la variable
     void setTimeStopped(bool value);
 
     // Obtiene el valor de la variable
-    bool isTimeStopped();
+    auto isTimeStopped() -> bool;
 
     // Establece el valor de la variable
     void setTimeStoppedCounter(Uint16 value);
@@ -470,7 +470,7 @@ class Game {
     void updateDeathShake();
 
     // Indica si el efecto de agitación intensa está activo
-    bool isDeathShaking();
+    auto isDeathShaking() -> bool;
 
     // Actualiza la secuencia de muerte del jugador
     void updateDeathSequence();
@@ -494,10 +494,10 @@ class Game {
     void enterGameOverScreen();
 
     // Indica si se puede crear una powerball
-    bool canPowerBallBeCreated();
+    auto canPowerBallBeCreated() -> bool;
 
     // Calcula el poder actual de los globos en pantalla
-    int calculateScreenPower();
+    auto calculateScreenPower() -> int;
 
     // Inicializa las variables que contienen puntos de ruta para mover objetos
     void initPaths();
@@ -509,7 +509,7 @@ class Game {
     void updateHelper();
 
     // Comprueba si todos los jugadores han muerto
-    bool allPlayersAreDead();
+    auto allPlayersAreDead() -> bool;
 
     // Elimina todos los objetos contenidos en vectores
     void deleteAllVectorObjects();
@@ -525,7 +525,7 @@ class Game {
     ~Game();
 
     Game(const Game &) = delete;
-    Game &operator=(const Game &) = delete;
+    auto operator=(const Game &) -> Game & = delete;
 
     // Bucle para el juego
     void run();
@@ -534,7 +534,7 @@ class Game {
     void iterate();
 
     // Indica si el juego ha terminado
-    bool hasFinished() const;
+    [[nodiscard]] auto hasFinished() const -> bool;
 
     // Procesa un evento
     void handleEvent(const SDL_Event *event);
diff --git a/source/game/scenes/instructions.h b/source/game/scenes/instructions.h
index 3aa7a37..32f6cde 100644
--- a/source/game/scenes/instructions.h
+++ b/source/game/scenes/instructions.h
@@ -46,7 +46,7 @@ class Instructions {
     ~Instructions();
 
     Instructions(const Instructions &) = delete;
-    Instructions &operator=(const Instructions &) = delete;
+    auto operator=(const Instructions &) -> Instructions & = delete;
 
     // Bucle principal
     void run(mode_e mode);
@@ -64,8 +64,8 @@ class Instructions {
     void checkEvents();
 
     // Indica si las instrucciones han terminado
-    bool hasFinished() const;
+    [[nodiscard]] auto hasFinished() const -> bool;
 
     // Indica si se ha solicitado salir de la aplicación
-    bool isQuitRequested() const;
+    [[nodiscard]] auto isQuitRequested() const -> bool;
 };
\ No newline at end of file
diff --git a/source/game/scenes/intro.h b/source/game/scenes/intro.h
index 6b9489f..f56aa02 100644
--- a/source/game/scenes/intro.h
+++ b/source/game/scenes/intro.h
@@ -48,7 +48,7 @@ class Intro {
     ~Intro();
 
     Intro(const Intro &) = delete;
-    Intro &operator=(const Intro &) = delete;
+    auto operator=(const Intro &) -> Intro & = delete;
 
     // Bucle principal
     void run();
diff --git a/source/game/scenes/logo.h b/source/game/scenes/logo.h
index 97be058..c4149aa 100644
--- a/source/game/scenes/logo.h
+++ b/source/game/scenes/logo.h
@@ -43,7 +43,7 @@ class Logo {
     ~Logo();
 
     Logo(const Logo &) = delete;
-    Logo &operator=(const Logo &) = delete;
+    auto operator=(const Logo &) -> Logo & = delete;
 
     // Bucle principal
     void run();
diff --git a/source/game/scenes/title.h b/source/game/scenes/title.h
index 6a695ac..a9dc38a 100644
--- a/source/game/scenes/title.h
+++ b/source/game/scenes/title.h
@@ -129,7 +129,7 @@ class Title {
     void runDemoGame();
 
     // Modifica las opciones para los controles de los jugadores
-    bool updatePlayerInputs(int numPlayer);
+    auto updatePlayerInputs(int numPlayer) -> bool;
 
     // Crea el mosaico de fondo del titulo
     void createTiledBackground();
@@ -148,7 +148,7 @@ class Title {
     ~Title();
 
     Title(const Title &) = delete;
-    Title &operator=(const Title &) = delete;
+    auto operator=(const Title &) -> Title & = delete;
 
     // Bucle para el titulo del juego
     void run();