jaildoctors_dilemma/source/game/scenes/title.cpp

#include "game/scenes/title.hpp"

#include <SDL3/SDL.h>

#include <algorithm>  // Para clamp

#include "core/audio/audio.hpp"               // Para Audio
#include "core/input/global_inputs.hpp"       // Para check
#include "core/input/input.hpp"               // Para Input, InputAction, Input::DO_NOT_ALLOW_REPEAT, REP...
#include "core/rendering/screen.hpp"          // Para Screen
#include "core/rendering/surface.hpp"         // Para Surface
#include "core/rendering/surface_sprite.hpp"  // Para SSprite
#include "core/rendering/text.hpp"            // Para Text, TEXT_CENTER, TEXT_COLOR
#include "core/resources/resource.hpp"        // Para Resource
#include "core/system/global_events.hpp"      // Para check
#include "game/gameplay/cheevos.hpp"          // Para Cheevos, Achievement
#include "game/options.hpp"                   // Para Options, options, SectionState, Section
#include "game/scene_manager.hpp"             // Para SceneManager
#include "utils/defines.hpp"                  // Para PLAY_AREA_CENTER_X, GAMECANVAS_WIDTH
#include "utils/utils.hpp"                    // Para stringToColor, PaletteColor, playMusic

// Constructor
Title::Title()
    : game_logo_surface_(Resource::get()->getSurface("title_logo.gif")),
      game_logo_sprite_(std::make_unique<SurfaceSprite>(game_logo_surface_, 29, 9, game_logo_surface_->getWidth(), game_logo_surface_->getHeight())),
      loading_screen_surface_(Resource::get()->getSurface("loading_screen_color.gif")),
      loading_screen_sprite_(std::make_unique<SurfaceSprite>(loading_screen_surface_, 0, 0, loading_screen_surface_->getWidth(), loading_screen_surface_->getHeight())),
      title_surface_(std::make_shared<Surface>(Options::game.width, Options::game.height)),
      delta_timer_(std::make_unique<DeltaTimer>()),
      marquee_text_(Resource::get()->getText("gauntlet")),
      menu_text_(Resource::get()->getText("gauntlet")),
      first_active_letter_(0),
      last_active_letter_(0),
      state_time_(0.0F),
      fade_accumulator_(0.0F),
      exit_scene_(SceneManager::Scene::GAME) {
    // Inicializa variables
    state_ = SceneManager::options == SceneManager::Options::TITLE_WITH_LOADING_SCREEN ? State::SHOW_LOADING_SCREEN : State::MAIN_MENU;
    SceneManager::current = SceneManager::Scene::TITLE;
    SceneManager::options = SceneManager::Options::NONE;
    initMarquee();

    // Crea y rellena la textura para mostrar los logros
    createCheevosTexture();

    // Cambia el color del borde
    Screen::get()->setBorderColor(static_cast<Uint8>(PaletteColor::BLACK));

    // Inicia la musica
    playMusic("title.ogg");
}

// Inicializa la marquesina
void Title::initMarquee() {
    letters_.clear();
    long_text_ = "HEY JAILERS!! IT'S 2022 AND WE'RE STILL ROCKING LIKE IT'S 1998!!! HAVE YOU HEARD IT? JAILGAMES ARE BACK!! YEEESSS BACK!! MORE THAN 10 TITLES ON JAILDOC'S KITCHEN!! THATS A LOOOOOOT OF JAILGAMES, BUT WHICH ONE WILL STRIKE FIRST? THERE IS ALSO A NEW DEVICE TO COME THAT WILL BLOW YOUR MIND WITH JAILGAMES ON THE GO: P.A.C.O. BUT WAIT! WHAT'S THAT BEAUTY I'M SEEING RIGHT OVER THERE?? OOOH THAT TINY MINIASCII IS PURE LOVE!! I WANT TO LICK EVERY BYTE OF IT!! OH SHIT! AND DON'T FORGET TO BRING BACK THOSE OLD AND FAT MS-DOS JAILGAMES TO GITHUB TO KEEP THEM ALIVE!! WHAT WILL BE THE NEXT JAILDOC RELEASE? WHAT WILL BE THE NEXT PROJECT TO COME ALIVE?? OH BABY WE DON'T KNOW BUT HERE YOU CAN FIND THE ANSWER, YOU JUST HAVE TO COMPLETE JAILDOCTOR'S DILEMMA ... COULD YOU?";

    // Pre-calcular anchos de caracteres para eficiencia
    for (size_t i = 0; i < long_text_.length(); ++i) {
        Glyph l;
        l.letter = long_text_[i];                                        // char directo, no substring
        l.x = MARQUEE_START_X;                                           // Usar constante
        l.width = marquee_text_->lenght(std::string(1, long_text_[i]));  // Pre-calcular ancho
        l.enabled = false;
        letters_.push_back(l);
    }

    letters_[0].enabled = true;
    first_active_letter_ = 0;
    last_active_letter_ = 0;
}

// Comprueba el manejador de eventos
void Title::handleEvents() {
    SDL_Event event;
    while (SDL_PollEvent(&event)) {
        GlobalEvents::handle(event);

        if (event.type == SDL_EVENT_KEY_DOWN) {
            switch (state_) {
                case State::MAIN_MENU:
                    switch (event.key.key) {
                        case SDLK_1:
                            exit_scene_ = SceneManager::Scene::GAME;
                            transitionToState(State::FADE_MENU);
                            Audio::get()->fadeOutMusic(1000);
                            break;

                        case SDLK_2:
                            transitionToState(State::CONTROLS_MENU);
                            break;

                        case SDLK_3:
                            transitionToState(State::CHEEVOS_MENU);
                            break;

                        default:
                            break;
                    }
                    break;

                default:
                    break;
            }
        }
    }
}

// Comprueba las entradas
void Title::handleInput(float delta_time) {
    Input::get()->update();

    switch (state_) {
        case State::SHOW_LOADING_SCREEN:
            if (Input::get()->checkAction(InputAction::ACCEPT, Input::DO_NOT_ALLOW_REPEAT)) {
                transitionToState(State::FADE_LOADING_SCREEN);
            }
            break;

        case State::CHEEVOS_MENU:
            if (Input::get()->checkAction(InputAction::RIGHT, Input::ALLOW_REPEAT)) {
                moveCheevosList(1, delta_time);
            } else if (Input::get()->checkAction(InputAction::LEFT, Input::ALLOW_REPEAT)) {
                moveCheevosList(0, delta_time);
            }

            if (Input::get()->checkAction(InputAction::ACCEPT, Input::DO_NOT_ALLOW_REPEAT) ||
                Input::get()->checkAction(InputAction::CANCEL, Input::DO_NOT_ALLOW_REPEAT)) {
                resetCheevosScroll();
                transitionToState(State::MAIN_MENU);
            }
            break;

        case State::CONTROLS_MENU:
            if (Input::get()->checkAction(InputAction::ACCEPT, Input::DO_NOT_ALLOW_REPEAT) ||
                Input::get()->checkAction(InputAction::CANCEL, Input::DO_NOT_ALLOW_REPEAT)) {
                transitionToState(State::MAIN_MENU);
            }
            break;

        default:
            break;
    }

    GlobalInputs::handle();
}

// Actualiza la marquesina
void Title::updateMarquee(float delta_time) {
    const float DISPLACEMENT = MARQUEE_SPEED * delta_time;

    // Solo procesar letras en rango activo + 1 para poder activar la siguiente
    for (int i = first_active_letter_; i <= last_active_letter_ + 1 && i < (int)letters_.size(); ++i) {
        auto& letter = letters_[i];

        if (letter.enabled) {
            letter.x -= DISPLACEMENT;

            // Desactivar si sale de pantalla
            if (letter.x < MARQUEE_EXIT_X) {
                letter.enabled = false;
                if (i == first_active_letter_) {
                    first_active_letter_++;  // Avanzar inicio del rango
                }
            }
        } else if (i > 0 && letters_[i - 1].x < MARQUEE_START_X && letters_[i - 1].enabled) {
            // Activar siguiente letra usando ancho pre-calculado
            letter.enabled = true;
            letter.x = letters_[i - 1].x + letters_[i - 1].width + MARQUEE_LETTER_SPACING;
            last_active_letter_ = i;  // Expandir fin del rango
        }
    }

    // Comprueba si ha terminado la marquesina y la reinicia
    if (letters_[letters_.size() - 1].x < MARQUEE_EXIT_X) {
        initMarquee();
    }
}

// Dibuja la marquesina
void Title::renderMarquee() {
    // Solo renderizar letras activas (optimización: usa cache y rangos)
    for (int i = first_active_letter_; i <= last_active_letter_ + 1 && i < (int)letters_.size(); ++i) {
        const auto& letter = letters_[i];
        if (letter.enabled) {
            marquee_text_->writeColored(
                static_cast<int>(letter.x),     // Conversión explícita float→int
                static_cast<int>(MARQUEE_Y),    // Usar constante
                std::string(1, letter.letter),  // Convertir char a string
                static_cast<Uint8>(PaletteColor::MAGENTA));
        }
    }
}

// Actualiza las variables
void Title::update() {
    const float DELTA_TIME = delta_timer_->tick();

    handleEvents();           // Comprueba los eventos
    handleInput(DELTA_TIME);  // Comprueba las entradas

    updateState(DELTA_TIME);  // Actualiza el estado actual

    Audio::get()->update();             // Actualiza el objeto Audio
    Screen::get()->update(DELTA_TIME);  // Actualiza el objeto Screen
}

// Actualiza el estado actual
void Title::updateState(float delta_time) {
    switch (state_) {
        case State::SHOW_LOADING_SCREEN:
            updateShowLoadingScreen(delta_time);
            break;

        case State::FADE_LOADING_SCREEN:
            updateFadeLoadingScreen(delta_time);
            break;

        case State::MAIN_MENU:
            updateMainMenu(delta_time);
            break;

        case State::CHEEVOS_MENU:
            updateCheevosMenu(delta_time);
            break;

        case State::CONTROLS_MENU:
            updateControlsMenu(delta_time);
            break;

        case State::FADE_MENU:
            updateFadeMenu(delta_time);
            break;

        case State::POST_FADE_MENU:
            updatePostFadeMenu(delta_time);
            break;

        default:
            break;
    }
}

// Transiciona a un nuevo estado
void Title::transitionToState(State new_state) {
    state_ = new_state;
    state_time_ = 0.0F;
    fade_accumulator_ = 0.0F;
}

// Actualiza el estado SHOW_LOADING_SCREEN
void Title::updateShowLoadingScreen(float delta_time) {
    state_time_ += delta_time;
    if (state_time_ >= SHOW_LOADING_DURATION) {
        transitionToState(State::FADE_LOADING_SCREEN);
    }
}

// Actualiza el estado FADE_LOADING_SCREEN
void Title::updateFadeLoadingScreen(float delta_time) {
    fade_accumulator_ += delta_time;
    if (fade_accumulator_ >= FADE_STEP_INTERVAL) {
        fade_accumulator_ = 0.0F;
        if (loading_screen_surface_->fadeSubPalette()) {
            transitionToState(State::MAIN_MENU);
        }
    }
}

// Actualiza el estado MAIN_MENU
void Title::updateMainMenu(float delta_time) {
    // Actualiza la marquesina
    updateMarquee(delta_time);

    // Incrementa el temporizador solo en el menú principal
    state_time_ += delta_time;

    // Si el tiempo alcanza el timeout, va a créditos con fade
    if (state_time_ >= MAIN_MENU_IDLE_TIMEOUT) {
        exit_scene_ = SceneManager::Scene::CREDITS;
        transitionToState(State::FADE_MENU);
    }
}

// Actualiza el estado CHEEVOS_MENU
void Title::updateCheevosMenu(float delta_time) {
    // Actualiza la marquesina (sigue visible en fondo)
    updateMarquee(delta_time);
    // No incrementar state_time_ (no timeout en este estado)
}

// Actualiza el estado CONTROLS_MENU
void Title::updateControlsMenu(float delta_time) {
    // Actualiza la marquesina (sigue visible en fondo)
    updateMarquee(delta_time);
    // No incrementar state_time_ (no timeout en este estado)
}

// Actualiza el estado FADE_MENU
void Title::updateFadeMenu(float delta_time) {
    fade_accumulator_ += delta_time;
    if (fade_accumulator_ >= FADE_STEP_INTERVAL) {
        fade_accumulator_ = 0.0F;
        if (title_surface_->fadeSubPalette()) {
            transitionToState(State::POST_FADE_MENU);
        }
    }
    // Actualiza la marquesina (sigue visible en fondo)
    updateMarquee(delta_time);
}

// Actualiza el estado POST_FADE_MENU
void Title::updatePostFadeMenu(float delta_time) {
    state_time_ += delta_time;
    if (state_time_ >= POST_FADE_DELAY) {
        SceneManager::current = exit_scene_;
        SceneManager::options = SceneManager::Options::NONE;
    }
}

// Dibuja en pantalla
void Title::render() {
    // Rellena la surface
    fillTitleSurface();

    // Prepara para empezar a dibujar en la textura de juego
    Screen::get()->start();
    Screen::get()->clearSurface(static_cast<Uint8>(PaletteColor::BLACK));

    // Dibuja en pantalla la surface con la composicion
    title_surface_->render();

    // Vuelca el contenido del renderizador en pantalla
    Screen::get()->render();
}

// Bucle para el logo del juego
void Title::run() {
    while (SceneManager::current == SceneManager::Scene::TITLE) {
        update();
        render();
    }
}

// Desplaza la lista de logros
void Title::moveCheevosList(int direction, float delta_time) {
    // Calcula el desplazamiento basado en tiempo
    const float DISPLACEMENT = CHEEVOS_SCROLL_SPEED * delta_time;

    // Modifica la posición de la ventana de vista
    cheevos_surface_view_.y = direction == 0
        ? cheevos_surface_view_.y - DISPLACEMENT
        : cheevos_surface_view_.y + DISPLACEMENT;

    // Ajusta los limites
    const float BOTTOM = cheevos_surface_->getHeight() - cheevos_surface_view_.h;
    cheevos_surface_view_.y = std::clamp(cheevos_surface_view_.y, 0.0F, BOTTOM);

    cheevos_sprite_->setClip(cheevos_surface_view_);
}

// Crea y rellena la textura para mostrar los logros
void Title::createCheevosTexture() {
    // Crea la textura con el listado de logros
    const auto CHEEVOS_LIST = Cheevos::get()->list();
    const auto TEXT = Resource::get()->getText("subatomic");
    constexpr int CHEEVOS_TEXTURE_WIDTH = 200;
    constexpr int CHEEVOS_TEXTURE_VIEW_HEIGHT = 110 - 8;
    constexpr int CHEEVOS_TEXTURE_POS_Y = 73;
    constexpr int CHEEVOS_PADDING = 10;
    const int CHEEVO_HEIGHT = CHEEVOS_PADDING + (TEXT->getCharacterSize() * 2) + 1;
    const int CHEEVOS_TEXTURE_HEIGHT = (CHEEVO_HEIGHT * CHEEVOS_LIST.size()) + 2 + TEXT->getCharacterSize() + 8;
    cheevos_surface_ = std::make_shared<Surface>(CHEEVOS_TEXTURE_WIDTH, CHEEVOS_TEXTURE_HEIGHT);

    // Prepara para dibujar sobre la textura
    auto previuos_renderer = Screen::get()->getRendererSurface();
    Screen::get()->setRendererSurface(cheevos_surface_);

    // Rellena la textura con color sólido
    const auto CHEEVOS_BG_COLOR = static_cast<Uint8>(PaletteColor::BLACK);
    cheevos_surface_->clear(CHEEVOS_BG_COLOR);

    // Escribe la lista de logros en la textura
    const std::string CHEEVOS_OWNER = "ACHIEVEMENTS";
    const std::string CHEEVOS_LIST_CAPTION = CHEEVOS_OWNER + " (" + std::to_string(Cheevos::get()->getTotalUnlockedAchievements()) + " / " + std::to_string(Cheevos::get()->size()) + ")";
    int pos = 2;
    TEXT->writeDX(TEXT_CENTER | TEXT_COLOR, cheevos_surface_->getWidth() / 2, pos, CHEEVOS_LIST_CAPTION, 1, stringToColor("bright_green"));
    pos += TEXT->getCharacterSize();
    const Uint8 CHEEVO_LOCKED_COLOR = stringToColor("white");
    const Uint8 CHEEVO_UNLOCKED_COLOR = stringToColor("bright_green");
    constexpr int LINE_X1 = (CHEEVOS_TEXTURE_WIDTH / 7) * 3;
    constexpr int LINE_X2 = LINE_X1 + ((CHEEVOS_TEXTURE_WIDTH / 7) * 1);

    for (const auto& cheevo : CHEEVOS_LIST) {
        const Uint8 CHEEVO_COLOR = cheevo.completed ? CHEEVO_UNLOCKED_COLOR : CHEEVO_LOCKED_COLOR;
        pos += CHEEVOS_PADDING;
        constexpr int HALF = CHEEVOS_PADDING / 2;
        cheevos_surface_->drawLine(LINE_X1, pos - HALF - 1, LINE_X2, pos - HALF - 1, CHEEVO_COLOR);
        TEXT->writeDX(TEXT_CENTER | TEXT_COLOR, CHEEVOS_TEXTURE_WIDTH / 2, pos, cheevo.caption, 1, CHEEVO_COLOR);
        pos += TEXT->getCharacterSize() + 1;
        TEXT->writeDX(TEXT_CENTER | TEXT_COLOR, CHEEVOS_TEXTURE_WIDTH / 2, pos, cheevo.description, 1, CHEEVO_COLOR);
        pos += TEXT->getCharacterSize();
    }

    // Restablece el RenderSurface
    Screen::get()->setRendererSurface(previuos_renderer);

    // Crea el sprite para el listado de logros
    cheevos_sprite_ = std::make_unique<SurfaceSprite>(cheevos_surface_, (GAMECANVAS_WIDTH - cheevos_surface_->getWidth()) / 2, CHEEVOS_TEXTURE_POS_Y, cheevos_surface_->getWidth(), cheevos_surface_->getHeight());
    cheevos_surface_view_ = {.x = 0, .y = 0, .w = cheevos_surface_->getWidth(), .h = CHEEVOS_TEXTURE_VIEW_HEIGHT};
    cheevos_sprite_->setClip(cheevos_surface_view_);
}

// Resetea el scroll de la lista de logros
void Title::resetCheevosScroll() {
    cheevos_surface_view_.y = 0;
    cheevos_sprite_->setClip(cheevos_surface_view_);
}

// Dibuja el logo con el titulo del juego
void Title::renderGameLogo() {
    game_logo_sprite_->render();
}

// Dibuja el menu principal
void Title::renderMainMenu() {
    const Uint8 COLOR = stringToColor("green");
    const int TEXT_SIZE = menu_text_->getCharacterSize();
    menu_text_->writeDX(TEXT_CENTER | TEXT_COLOR, PLAY_AREA_CENTER_X, 11 * TEXT_SIZE, "1. PLAY", 1, COLOR);
    menu_text_->writeDX(TEXT_CENTER | TEXT_COLOR, PLAY_AREA_CENTER_X, 13 * TEXT_SIZE, "2. CONTROLS", 1, COLOR);
    menu_text_->writeDX(TEXT_CENTER | TEXT_COLOR, PLAY_AREA_CENTER_X, 15 * TEXT_SIZE, "3. ACHIEVEMENTS", 1, COLOR);
}

// Dibuja el menu de logros
void Title::renderCheevosMenu() {
    cheevos_sprite_->render();
}

// Dibuja el menu de controles
void Title::renderControlsMenu() {
    const Uint8 COLOR = stringToColor("green");
    const int TEXT_SIZE = menu_text_->getCharacterSize();
    menu_text_->writeDX(TEXT_CENTER | TEXT_COLOR, PLAY_AREA_CENTER_X, 11 * TEXT_SIZE, "1. REDEFINE KEYBOARD", 1, COLOR);
    menu_text_->writeDX(TEXT_CENTER | TEXT_COLOR, PLAY_AREA_CENTER_X, 13 * TEXT_SIZE, "2. REDEFINE JOYSTICK", 1, COLOR);
}

// Dibuja los elementos en la surface
void Title::fillTitleSurface() {
    // Renderiza sobre la textura
    auto previuos_renderer = Screen::get()->getRendererSurface();
    Screen::get()->setRendererSurface(title_surface_);

    // Rellena la textura de color
    title_surface_->clear(static_cast<Uint8>(PaletteColor::BLACK));

    switch (state_) {
        case State::MAIN_MENU:
        case State::FADE_MENU:
            renderGameLogo();
            renderMainMenu();
            renderMarquee();
            break;

        case State::CHEEVOS_MENU:
            renderGameLogo();
            renderCheevosMenu();
            renderMarquee();
            break;

        case State::CONTROLS_MENU:
            renderGameLogo();
            renderControlsMenu();
            renderMarquee();
            break;

        case State::SHOW_LOADING_SCREEN:
        case State::FADE_LOADING_SCREEN:
            loading_screen_sprite_->render();
            renderGameLogo();
            break;

        default:
            break;
    }

    // Deja el renderizador como estaba
    Screen::get()->setRendererSurface(previuos_renderer);
}