158 lines
3.0 KiB
C++
158 lines
3.0 KiB
C++
#include "logo.h"
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#define INIT_FADE 100
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#define END_LOGO 200
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// Constructor
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Logo::Logo(SDL_Renderer *renderer, Screen *screen, Asset *asset)
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{
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// Copia la dirección de los objetos
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this->renderer = renderer;
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this->screen = screen;
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this->asset = asset;
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// Reserva memoria para los punteros
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eventHandler = new SDL_Event();
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texture = new LTexture(renderer, asset->get("logo.png"));
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sprite = new Sprite(0, 0, GAME_WIDTH, GAME_HEIGHT, texture, renderer);
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// Crea un backbuffer para el renderizador
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backbuffer = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, GAME_WIDTH, GAME_HEIGHT);
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if (backbuffer == nullptr)
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{
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printf("Backbuffer could not be created!\nSDL Error: %s\n", SDL_GetError());
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}
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// Inicializa variables
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counter = 0;
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section.name = PROG_SECTION_LOGO;
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section.subsection = 0;
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ticks = 0;
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ticksSpeed = 15;
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}
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// Destructor
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Logo::~Logo()
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{
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SDL_DestroyTexture(backbuffer);
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texture->unload();
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delete texture;
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delete sprite;
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delete eventHandler;
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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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{
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if (counter == 0)
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{
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if (JA_GetMusicState() == JA_MUSIC_PLAYING)
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{
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JA_StopMusic();
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}
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}
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if (counter == END_LOGO + 20)
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{
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counter = 0;
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section.name = PROG_SECTION_INTRO;
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section.subsection = 0;
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}
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else
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{
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counter++;
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}
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}
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// Comprueba los eventos
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void Logo::checkEventHandler()
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{
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// Comprueba los eventos que hay en la cola
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while (SDL_PollEvent(eventHandler) != 0)
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{
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// Evento de salida de la aplicación
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if (eventHandler->type == SDL_QUIT)
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{
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section.name = PROG_SECTION_QUIT;
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break;
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}
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// Cualquier tecla pulsada
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if ((eventHandler->type == SDL_KEYDOWN) || (eventHandler->type == SDL_JOYBUTTONDOWN))
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{
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section.name = PROG_SECTION_TITLE;
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section.subsection = TITLE_SECTION_1;
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}
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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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{
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const SDL_Rect rect = {0, 0, GAME_WIDTH, GAME_HEIGHT};
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const int fadeLenght = END_LOGO - INIT_FADE;
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// Dibuja el fade
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if (counter >= INIT_FADE)
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{
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const Uint16 alpha = (255 * (counter - INIT_FADE)) / fadeLenght;
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if (alpha < 256)
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{
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SDL_SetRenderDrawColor(renderer, bgColor.r, bgColor.g, bgColor.b, alpha);
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}
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else
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{
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SDL_SetRenderDrawColor(renderer, bgColor.r, bgColor.g, bgColor.b, 255);
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}
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SDL_RenderFillRect(renderer, &rect);
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}
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}
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// Actualiza las variables del objeto
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void Logo::update()
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{
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checkEventHandler();
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if (SDL_GetTicks() - ticks > ticksSpeed)
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{
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// Actualiza el contador de ticks
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ticks = SDL_GetTicks();
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// Comprueba si ha terminado el logo
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checkLogoEnd();
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}
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}
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// Dibuja el objeto en pantalla
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void Logo::render()
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{
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// Prepara para empezar a dibujar en la textura de juego
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screen->start();
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// Limpia la pantalla
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screen->clean(bgColor);
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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->blit();
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}
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// Bucle para el logo del juego
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section_t Logo::run()
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{
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while (section.name == PROG_SECTION_LOGO)
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{
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update();
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render();
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}
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return section;
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}
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