afegida logica de continues

fix: el text no centrava correctament en horitzontal

source/core/defaults.hpp

@@ -157,6 +157,27 @@ constexpr float INIT_HUD_SHIP_START_Y_RATIO = 0.75f;  // 75% desde el top de PLA
 constexpr float P1_SPAWN_X_RATIO = 0.33f;  // 33% desde izquierda
 constexpr float P2_SPAWN_X_RATIO = 0.67f;  // 67% desde izquierda
 constexpr float SPAWN_Y_RATIO = 0.75f;     // 75% desde arriba
+
+// Continue system behavior
+constexpr int CONTINUE_COUNT_START = 9;           // Countdown starts at 9
+constexpr float CONTINUE_TICK_DURATION = 1.0f;    // Seconds per countdown tick
+constexpr int MAX_CONTINUES = 3;                  // Maximum continues per game
+constexpr bool INFINITE_CONTINUES = false;        // If true, unlimited continues
+
+// Continue screen visual configuration
+namespace ContinueScreen {
+// "CONTINUE" text
+constexpr float CONTINUE_TEXT_SCALE = 2.0f;    // Text size
+constexpr float CONTINUE_TEXT_Y_RATIO = 0.35f;  // 35% from top of PLAYAREA
+
+// Countdown number (9, 8, 7...)
+constexpr float COUNTER_TEXT_SCALE = 4.0f;     // Text size (large)
+constexpr float COUNTER_TEXT_Y_RATIO = 0.50f;  // 50% from top of PLAYAREA
+
+// "CONTINUES LEFT: X" text
+constexpr float INFO_TEXT_SCALE = 1.0f;        // Text size (small)
+constexpr float INFO_TEXT_Y_RATIO = 0.65f;     // 65% from top of PLAYAREA
+}  // namespace ContinueScreen
 }  // namespace Game
 
 // Física (valores actuales del juego, sincronizados con joc_asteroides.cpp)

source/core/graphics/vector_text.cpp

@@ -195,8 +195,8 @@ void VectorText::render(const std::string& text, const Punt& posicio, float esca
     // Altura de un carácter escalado (necesario para ajustar Y)
     const float char_height_scaled = char_height * escala;
 
-    // Posición actual del centro del carácter (ajustada desde esquina superior
-    // izquierda)
+    // Posición X del borde izquierdo del carácter actual
+    // (se ajustará +char_width/2 para obtener el centro al renderizar)
     float current_x = posicio.x;
 
     // Iterar sobre cada byte del string (con detecció UTF-8)
@@ -220,9 +220,9 @@ void VectorText::render(const std::string& text, const Punt& posicio, float esca
         auto it = chars_.find(c);
         if (it != chars_.end()) {
             // Renderizar carácter
-            // Ajustar Y para que posicio represente esquina superior izquierda
-            // (render_shape espera el centro, así que sumamos la mitad de la altura)
-            Punt char_pos = {current_x, posicio.y + char_height_scaled / 2.0f};
+            // Ajustar X e Y para que posicio represente esquina superior izquierda
+            // (render_shape espera el centro, así que sumamos la mitad de ancho y altura)
+            Punt char_pos = {current_x + char_width_scaled / 2.0f, posicio.y + char_height_scaled / 2.0f};
             Rendering::render_shape(renderer_, it->second, char_pos, 0.0f, escala, true, 1.0f, brightness);
 
             // Avanzar posición
@@ -244,16 +244,23 @@ float VectorText::get_text_width(const std::string& text, float escala, float sp
     const float char_width_scaled = char_width * escala;
     const float spacing_scaled = spacing * escala;
 
-    // Ancho total = (número de caracteres × char_width) + (espacios entre
-    // caracteres)
-    float width = text.length() * char_width_scaled;
+    // Contar caracteres visuals (no bytes) - manejar UTF-8
+    size_t visual_chars = 0;
+    for (size_t i = 0; i < text.length(); i++) {
+        unsigned char c = static_cast<unsigned char>(text[i]);
 
-    // Añadir spacing entre caracteres (n-1 espacios para n caracteres)
-    if (text.length() > 1) {
-        width += (text.length() - 1) * spacing_scaled;
+        // Detectar copyright UTF-8 (0xC2 0xA9) - igual que render()
+        if (c == 0xC2 && i + 1 < text.length() &&
+            static_cast<unsigned char>(text[i + 1]) == 0xA9) {
+            visual_chars++;  // Un caràcter visual (©)
+            i++;             // Saltar el següent byte
+        } else {
+            visual_chars++;  // Caràcter normal
+        }
     }
 
-    return width;
+    // Ancho total = todos los caracteres VISUALES + spacing entre ellos
+    return visual_chars * char_width_scaled + (visual_chars - 1) * spacing_scaled;
 }
 
 float VectorText::get_text_height(float escala) const {

source/game/escenes/escena_joc.cpp

@@ -153,7 +153,10 @@ void EscenaJoc::inicialitzar() {
     // Initialize lives and game over state (independent lives per player)
     vides_per_jugador_[0] = Defaults::Game::STARTING_LIVES;
     vides_per_jugador_[1] = Defaults::Game::STARTING_LIVES;
-    game_over_ = false;
+    estat_game_over_ = EstatGameOver::NONE;
+    continue_counter_ = 0;
+    continue_tick_timer_ = 0.0f;
+    continues_usados_ = 0;
     game_over_timer_ = 0.0f;
 
     // Initialize scores (separate per player)
@@ -206,7 +209,7 @@ void EscenaJoc::inicialitzar() {
 
 void EscenaJoc::actualitzar(float delta_time) {
     // Processar disparos (state-based, no event-based)
-    if (!game_over_) {
+    if (estat_game_over_ == EstatGameOver::NONE) {
         auto* input = Input::get();
 
         // Jugador 1 dispara (només si està actiu)
@@ -222,10 +225,42 @@ void EscenaJoc::actualitzar(float delta_time) {
                 disparar_bala(1);
             }
         }
+
+        // [NEW] Allow mid-game join: inactive player presses START
+        // P2 can join if only P1 is active
+        if (config_partida_.jugador1_actiu && !config_partida_.jugador2_actiu) {
+            if (input->checkActionPlayer2(InputAction::START, Input::DO_NOT_ALLOW_REPEAT)) {
+                unir_jugador(1);
+            }
         }
 
-    // Check game over state first
-    if (game_over_) {
+        // P1 can join if only P2 is active
+        if (!config_partida_.jugador1_actiu && config_partida_.jugador2_actiu) {
+            if (input->checkActionPlayer1(InputAction::START, Input::DO_NOT_ALLOW_REPEAT)) {
+                unir_jugador(0);
+            }
+        }
+    }
+
+    // Handle CONTINUE screen
+    if (estat_game_over_ == EstatGameOver::CONTINUE) {
+        actualitzar_continue(delta_time);
+        processar_input_continue();
+
+        // Still update enemies, bullets, and effects during continue screen
+        for (auto& enemy : orni_) {
+            enemy.actualitzar(delta_time);
+        }
+        for (auto& bala : bales_) {
+            bala.actualitzar(delta_time);
+        }
+        debris_manager_.actualitzar(delta_time);
+        gestor_puntuacio_.actualitzar(delta_time);
+        return;
+    }
+
+    // Handle final GAME OVER state
+    if (estat_game_over_ == EstatGameOver::GAME_OVER) {
         // Game over: only update timer, enemies, bullets, and debris
         game_over_timer_ -= delta_time;
 
@@ -277,13 +312,14 @@ void EscenaJoc::actualitzar(float delta_time) {
                     // Set sentinel value to prevent re-entering this block
                     itocado_per_jugador_[i] = 999.0f;
 
-                    // Check if ALL ACTIVE players are dead (game over)
+                    // Check if ALL ACTIVE players are dead (trigger continue screen)
                     bool p1_dead = !config_partida_.jugador1_actiu || vides_per_jugador_[0] <= 0;
                     bool p2_dead = !config_partida_.jugador2_actiu || vides_per_jugador_[1] <= 0;
 
                     if (p1_dead && p2_dead) {
-                        game_over_ = true;
-                        game_over_timer_ = Defaults::Game::GAME_OVER_DURATION;
+                        estat_game_over_ = EstatGameOver::CONTINUE;
+                        continue_counter_ = Defaults::Game::CONTINUE_COUNT_START;
+                        continue_tick_timer_ = Defaults::Game::CONTINUE_TICK_DURATION;
                     }
                 }
             }
@@ -450,8 +486,30 @@ void EscenaJoc::actualitzar(float delta_time) {
 }
 
 void EscenaJoc::dibuixar() {
-    // Check game over state
-    if (game_over_) {
+    // Handle CONTINUE screen
+    if (estat_game_over_ == EstatGameOver::CONTINUE) {
+        // Draw game background elements first
+        dibuixar_marges();
+
+        for (const auto& enemy : orni_) {
+            enemy.dibuixar();
+        }
+
+        for (const auto& bala : bales_) {
+            bala.dibuixar();
+        }
+
+        debris_manager_.dibuixar();
+        gestor_puntuacio_.dibuixar();
+        dibuixar_marcador();
+
+        // Draw CONTINUE screen overlay
+        dibuixar_continue();
+        return;
+    }
+
+    // Handle final GAME OVER state
+    if (estat_game_over_ == EstatGameOver::GAME_OVER) {
         // Game over: draw enemies, bullets, debris, and "GAME OVER" text
         dibuixar_marges();
 
@@ -1121,3 +1179,169 @@ void EscenaJoc::disparar_bala(uint8_t player_id) {
         }
     }
 }
+
+// ==================== CONTINUE & JOIN SYSTEM ====================
+
+void EscenaJoc::actualitzar_continue(float delta_time) {
+    continue_tick_timer_ -= delta_time;
+
+    if (continue_tick_timer_ <= 0.0f) {
+        continue_counter_--;
+        continue_tick_timer_ = Defaults::Game::CONTINUE_TICK_DURATION;
+
+        // Play tick sound
+        Audio::get()->playSound("continue_tick");
+
+        if (continue_counter_ <= 0) {
+            // Timeout → final game over
+            estat_game_over_ = EstatGameOver::GAME_OVER;
+            game_over_timer_ = Defaults::Game::GAME_OVER_DURATION;
+        }
+    }
+}
+
+void EscenaJoc::processar_input_continue() {
+    auto* input = Input::get();
+
+    // Check START for both players
+    bool p1_start = input->checkActionPlayer1(InputAction::START, Input::DO_NOT_ALLOW_REPEAT);
+    bool p2_start = input->checkActionPlayer2(InputAction::START, Input::DO_NOT_ALLOW_REPEAT);
+
+    if (p1_start || p2_start) {
+        // Check continue limit (skip if infinite continues)
+        if (!Defaults::Game::INFINITE_CONTINUES && continues_usados_ >= Defaults::Game::MAX_CONTINUES) {
+            // Max continues reached → final game over
+            estat_game_over_ = EstatGameOver::GAME_OVER;
+            game_over_timer_ = Defaults::Game::GAME_OVER_DURATION;
+            return;
+        }
+
+        // Only increment if not infinite
+        if (!Defaults::Game::INFINITE_CONTINUES) {
+            continues_usados_++;
+        }
+
+        // Determine which player(s) to revive
+        uint8_t player_to_revive = p1_start ? 0 : 1;
+
+        // Reset score and lives (KEEP level and enemies!)
+        puntuacio_per_jugador_[player_to_revive] = 0;
+        vides_per_jugador_[player_to_revive] = Defaults::Game::STARTING_LIVES;
+        itocado_per_jugador_[player_to_revive] = 0.0f;
+
+        // Activate player if not already
+        if (player_to_revive == 0) {
+            config_partida_.jugador1_actiu = true;
+        } else {
+            config_partida_.jugador2_actiu = true;
+        }
+
+        // Spawn with invulnerability
+        Punt spawn_pos = obtenir_punt_spawn(player_to_revive);
+        naus_[player_to_revive].inicialitzar(&spawn_pos, true);
+
+        // Check if other player wants to continue too
+        if (p1_start && p2_start) {
+            uint8_t other_player = 1;
+            puntuacio_per_jugador_[other_player] = 0;
+            vides_per_jugador_[other_player] = Defaults::Game::STARTING_LIVES;
+            itocado_per_jugador_[other_player] = 0.0f;
+            config_partida_.jugador2_actiu = true;
+            Punt spawn_pos2 = obtenir_punt_spawn(other_player);
+            naus_[other_player].inicialitzar(&spawn_pos2, true);
+        }
+
+        // Resume game
+        estat_game_over_ = EstatGameOver::NONE;
+        continue_counter_ = 0;
+        continue_tick_timer_ = 0.0f;
+
+        // Play continue confirmation sound
+        Audio::get()->playSound("continue_confirm");
+
+        return;
+    }
+
+    // Check THRUST/FIRE to accelerate countdown (DO_NOT_ALLOW_REPEAT to avoid spam)
+    bool thrust_p1 = input->checkActionPlayer1(InputAction::THRUST, Input::DO_NOT_ALLOW_REPEAT);
+    bool thrust_p2 = input->checkActionPlayer2(InputAction::THRUST, Input::DO_NOT_ALLOW_REPEAT);
+    bool fire_p1 = input->checkActionPlayer1(InputAction::SHOOT, Input::DO_NOT_ALLOW_REPEAT);
+    bool fire_p2 = input->checkActionPlayer2(InputAction::SHOOT, Input::DO_NOT_ALLOW_REPEAT);
+
+    if (thrust_p1 || thrust_p2 || fire_p1 || fire_p2) {
+        continue_counter_--;
+
+        // Play tick sound on manual decrement
+        Audio::get()->playSound("continue_tick");
+
+        if (continue_counter_ <= 0) {
+            estat_game_over_ = EstatGameOver::GAME_OVER;
+            game_over_timer_ = Defaults::Game::GAME_OVER_DURATION;
+        }
+
+        // Reset timer to prevent double-decrement
+        continue_tick_timer_ = Defaults::Game::CONTINUE_TICK_DURATION;
+    }
+}
+
+void EscenaJoc::dibuixar_continue() {
+    const SDL_FRect& play_area = Defaults::Zones::PLAYAREA;
+    constexpr float spacing = 4.0f;
+
+    // "CONTINUE" text (using constants)
+    const std::string continue_text = "CONTINUE";
+    float escala_continue = Defaults::Game::ContinueScreen::CONTINUE_TEXT_SCALE;
+    float y_ratio_continue = Defaults::Game::ContinueScreen::CONTINUE_TEXT_Y_RATIO;
+
+    float text_width_continue = text_.get_text_width(continue_text, escala_continue, spacing);
+    float x_continue = play_area.x + (play_area.w - text_width_continue) / 2.0f;
+    float y_continue = play_area.y + play_area.h * y_ratio_continue;
+
+    text_.render(continue_text, {x_continue, y_continue}, escala_continue, spacing);
+
+    // Countdown number (using constants)
+    const std::string counter_str = std::to_string(continue_counter_);
+    float escala_counter = Defaults::Game::ContinueScreen::COUNTER_TEXT_SCALE;
+    float y_ratio_counter = Defaults::Game::ContinueScreen::COUNTER_TEXT_Y_RATIO;
+
+    float text_width_counter = text_.get_text_width(counter_str, escala_counter, spacing);
+    float x_counter = play_area.x + (play_area.w - text_width_counter) / 2.0f;
+    float y_counter = play_area.y + play_area.h * y_ratio_counter;
+
+    text_.render(counter_str, {x_counter, y_counter}, escala_counter, spacing);
+
+    // "CONTINUES LEFT" (conditional + using constants)
+    if (!Defaults::Game::INFINITE_CONTINUES) {
+        const std::string continues_text = "CONTINUES LEFT: " + std::to_string(Defaults::Game::MAX_CONTINUES - continues_usados_);
+        float escala_info = Defaults::Game::ContinueScreen::INFO_TEXT_SCALE;
+        float y_ratio_info = Defaults::Game::ContinueScreen::INFO_TEXT_Y_RATIO;
+
+        float text_width_info = text_.get_text_width(continues_text, escala_info, spacing);
+        float x_info = play_area.x + (play_area.w - text_width_info) / 2.0f;
+        float y_info = play_area.y + play_area.h * y_ratio_info;
+
+        text_.render(continues_text, {x_info, y_info}, escala_info, spacing);
+    }
+}
+
+void EscenaJoc::unir_jugador(uint8_t player_id) {
+    // Activate player
+    if (player_id == 0) {
+        config_partida_.jugador1_actiu = true;
+    } else {
+        config_partida_.jugador2_actiu = true;
+    }
+
+    // Reset stats
+    vides_per_jugador_[player_id] = Defaults::Game::STARTING_LIVES;
+    puntuacio_per_jugador_[player_id] = 0;
+    itocado_per_jugador_[player_id] = 0.0f;
+
+    // Spawn with invulnerability
+    Punt spawn_pos = obtenir_punt_spawn(player_id);
+    naus_[player_id].inicialitzar(&spawn_pos, true);
+
+    // No visual message, just spawn (per user requirement)
+
+    std::cout << "[EscenaJoc] Jugador " << (int)(player_id + 1) << " s'ha unit a la partida!" << std::endl;
+}

source/game/escenes/escena_joc.hpp

@@ -24,6 +24,13 @@
 #include "core/system/game_config.hpp"
 #include "core/types.hpp"
 
+// Game over state machine
+enum class EstatGameOver {
+    NONE,        // Normal gameplay
+    CONTINUE,    // Continue countdown screen (9→0)
+    GAME_OVER    // Final game over (returning to title)
+};
+
 // Classe principal del joc (escena)
 class EscenaJoc {
     public:
@@ -53,8 +60,11 @@ class EscenaJoc {
 
         // Lives and game over system
         std::array<int, 2> vides_per_jugador_;  // [0]=P1, [1]=P2
-        bool game_over_;                        // Game over state flag
-        float game_over_timer_;                 // Countdown timer for auto-return (seconds)
+        EstatGameOver estat_game_over_;         // Game over state machine (NONE, CONTINUE, GAME_OVER)
+        int continue_counter_;                  // Continue countdown (9→0)
+        float continue_tick_timer_;             // Timer for countdown tick (1.0s)
+        int continues_usados_;                  // Continues used this game (0-3 max)
+        float game_over_timer_;                 // Final GAME OVER timer before title screen
         // Punt punt_spawn_;                       // DEPRECATED: usar obtenir_punt_spawn(player_id)
         Punt punt_mort_;                            // Death position (for respawn, legacy)
         std::array<int, 2> puntuacio_per_jugador_;  // [0]=P1, [1]=P2
@@ -78,6 +88,12 @@ class EscenaJoc {
         void disparar_bala(uint8_t player_id);             // Shoot bullet from player
         Punt obtenir_punt_spawn(uint8_t player_id) const;  // Get spawn position for player
 
+        // [NEW] Continue & Join system
+        void unir_jugador(uint8_t player_id);              // Join inactive player mid-game
+        void processar_input_continue();                   // Handle input during continue screen
+        void actualitzar_continue(float delta_time);       // Update continue countdown
+        void dibuixar_continue();                          // Draw continue screen
+
         // [NEW] Stage system helpers
         void dibuixar_missatge_stage(const std::string& missatge);