131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
#include "game/scenes/logo.h"
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#include <SDL3/SDL.h>
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#include <algorithm> // for min
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#include <string> // for basic_string
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#include "core/audio/audio.hpp" // for Audio::get, Audio::update
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#include "core/input/global_inputs.hpp" // for GlobalInputs::handle
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#include "core/input/input.h" // for Input, Input::Repeat::OFF, InputAction
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#include "core/rendering/screen.h" // for Screen
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#include "core/rendering/sprite.h" // for Sprite
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#include "core/resources/resource.h"
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#include "core/system/delta_time.hpp" // for DeltaTime::reset / tick
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#include "game/defaults.hpp" // for bgColor, SECTION_PROG_LOGO, SECTION_PROG...
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#include "utils/utils.h" // for Section, Color
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// Durades de l'escena (segons). Time-based: ja no comptem frames. Valors
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// equivalents al comportament anterior (frame counter a 15ms): 100 i 200
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// frames ⇒ 1.5s i 3.0s; fi a 220 frames ⇒ 3.3s.
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constexpr float FADE_START_S = 1.5F;
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constexpr float FADE_END_S = 3.0F;
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constexpr float SCENE_END_S = 3.3F;
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// Constructor
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Logo::Logo(SDL_Renderer *renderer, Section *section) {
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// Copia la dirección de los objetos
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this->renderer_ = renderer;
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this->section_ = section;
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// Reserva memoria para los punteros
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event_handler_ = new SDL_Event();
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texture_ = Resource::get()->getTexture("logo.png");
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sprite_ = new Sprite(14, 75, 226, 44, texture_, renderer);
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// Inicializa variables
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section->name = SECTION_PROG_LOGO;
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section->subsection = 0;
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Audio::get()->stopMusic();
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// Reset del rellotge: la primera crida a tick() retornarà ~0 i no un
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// delta gegant arrossegat des del boot o l'escena anterior.
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DeltaTime::reset();
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}
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// Destructor
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Logo::~Logo() {
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// texture es propiedad de Resource — no liberar aquí.
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delete sprite_;
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delete event_handler_;
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}
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// Comprueba si ha terminado el logo
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void Logo::checkLogoEnd() {
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if (elapsed_time_s_ >= SCENE_END_S) {
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section_->name = SECTION_PROG_INTRO;
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section_->subsection = 0;
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}
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}
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// Comprueba las entradas
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void Logo::checkInput() {
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// ESC (Action::EXIT) ja el gestiona GlobalInputs::handle() amb doble
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// pulsació; el quit es propaga via Director::iterate.
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if (GlobalInputs::handle()) { return; }
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if (Input::get()->checkInput(Input::Action::ACCEPT, Input::Repeat::OFF) || Input::get()->checkInput(Input::Action::FIRE_LEFT, Input::Repeat::OFF) || Input::get()->checkInput(Input::Action::FIRE_CENTER, Input::Repeat::OFF) || Input::get()->checkInput(Input::Action::FIRE_RIGHT, Input::Repeat::OFF)) {
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section_->name = SECTION_PROG_TITLE;
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section_->subsection = SUBSECTION_TITLE_1;
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}
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}
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// Dibuja el fade
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void Logo::renderFade() {
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if (elapsed_time_s_ >= FADE_START_S) {
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const float STEP = (elapsed_time_s_ - FADE_START_S) / (FADE_END_S - FADE_START_S);
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const int ALPHA = std::min((int)(255 * STEP), 255);
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SDL_SetRenderDrawColor(renderer_, BG_COLOR.r, BG_COLOR.g, BG_COLOR.b, ALPHA);
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SDL_RenderFillRect(renderer_, nullptr);
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}
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}
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// Actualiza las variables del objeto
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void Logo::update(float delta_time_s) {
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Audio::update();
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checkInput();
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elapsed_time_s_ += delta_time_s;
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checkLogoEnd();
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}
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// Dibuja el objeto en pantalla
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void Logo::render() {
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// Prepara para empezar a dibujar en la textura de juego
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Screen::get()->start();
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// Limpia la pantalla
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Screen::get()->clean({238, 238, 238});
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// Dibuja los objetos
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sprite_->render();
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// Dibuja el fade
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renderFade();
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// Vuelca el contenido del renderizador en pantalla
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Screen::get()->blit();
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}
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// Bucle para el logo del juego
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void Logo::run() {
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Audio::get()->stopMusic();
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while (section_->name == SECTION_PROG_LOGO) {
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iterate();
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}
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}
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// Ejecuta un frame
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void Logo::iterate() {
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const float DELTA_TIME_S = DeltaTime::tick();
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update(DELTA_TIME_S);
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render();
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}
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// Procesa un evento individual
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void Logo::handleEvent(const SDL_Event * /*event*/) {
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// SDL_EVENT_QUIT ya lo maneja Director
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}
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