[ebook]Programacion de videojuegos con SDL

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P R O G R A M A C I Ó N D E V I D E O J U E G O S C O N S D L/*****************************************Ejemplo3_3(C) 2003 by Alberto Garcia SerranoProgramación de videojuegos con SDL*****************************************/#include #include #include int main(int argc, char *argv[]) {SDL_Surface *image, *screen;SDL_Rect dest;SDL_Event event;Sint16 joyx,joyy;SDL_Joystick *joystick;int done = 0;int x,y,button;atexit(SDL_Quit);// Iniciar SDLif (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_JOYSTICK) < 0) {printf("No se pudo iniciar SDL: %s\n",SDL_GetError());exit(1);}// Activamos modo de videoscreen = SDL_SetVideoMode(640,480,24,SDL_HWSURFACE);if (screen == NULL) {printf("No se puede inicializar el modo gráfico: \n",SDL_GetError());exit(1);}// Activa el Joystickif (SDL_NumJoysticks() >= 1) {joystick = SDL_JoystickOpen(0);SDL_JoystickEventState(SDL_ENABLE);}// Cargamos gráficoimage = SDL_LoadBMP("nave.bmp");if ( image == NULL ) {printf("No pude cargar gráfico: %s\n", SDL_GetError());exit(1);}// Definimos color para la transparenciaSDL_SetColorKey(image,SDL_SRCCOLORKEY|SDL_RLEACCEL,SDL_MapRGB(image->format,255,0,0));x = y = 100;button = 0;while(done == 0) {// Borramos la pantalladest.x=0;dest.y=0;dest.w=640;dest.h=480;SDL_FillRect(screen,&dest,SDL_MapRGB(screen->format,0,0,0));// Definimos donde dibujaremos el gráfico// y lo copiamos a la pantalla.dest.x = x;dest.y = y;dest.w = image->w;dest.h = image->h;SDL_BlitSurface(image, NULL, screen, &dest);// Mostramos la pantallaSDL_Flip(screen);49
P R O G R A M A C I Ó N D E V I D E O J U E G O S C O N S D L// lectura directa del joystickjoyx = SDL_JoystickGetAxis(joystick, 0);joyy = SDL_JoystickGetAxis(joystick, 1);if (joyy < -10) {y-=5;}if (joyy > 10) {y+=5;}if (joyx < -10) {x-=5;}if (joyx > 10) {x+=5;}// Lectura de eventoswhile ( SDL_PollEvent(&event) ) {// salir del programa si se pulsa el boton del joystickif ( event.type == SDL_JOYBUTTONDOWN) {done = 1;}}}// salir del programa si se pulsa una tecla// o se cierra la ventanaif ( event.type == SDL_KEYDOWN || event.type == SDL_QUIT)done = 1;// liberar superficieSDL_FreeSurface(image);// cerramos el joystickif (SDL_JoystickOpened(0)) {SDL_JoystickClose(joystick);}}return 0;50
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ApéndiceAInstalación de SDLLa dir
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Ventana de configuración C/C++->re
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}}return 0;Una vez introducido el c
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ApéndiceBDe C a C++Que tengas este
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void Coche::acelerar(int velocidad)
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HerenciaNo sé de color tienes los
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liberar memoriadelete coche;Lo prim
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Mat Buckland.Ed. Learning ExpressIS
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Índice AlfabéticoAalgoritmos de b
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[ebook]Programacion de videojuegos con SDL

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