Appunti di informatica

Esempio 1

Prima potrebbe essere necessario installare tutti i pacchetti elencati nella pagina sfml

Poi per compilare questo file si deve usare il comando

gcc main.c -lcsfml-graphics -lcsfml-system -lcsfml-window 

main.c

#include <stdlib.h>
#include <SFML/Audio.h>
#include <SFML/Graphics.h>
 
int main()
{
    sfVideoMode mode = {400, 200, 32};
    sfRenderWindow* window;
    sfTexture* texture;
    sfFont* font;
    sfText* text;
 
    sfEvent event;
    /* Create the main window */
    window = sfRenderWindow_create(mode, "SFML Titolone", sfResize | sfClose, NULL);
    if (!window)
        return EXIT_FAILURE;
 
    /* Create a graphical text to display */
    font = sfFont_createFromFile("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf"); /* modificato per ubuntu*/
    /* font = sfFont_createFromFile("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"); /* modificato per debian */
    text = sfText_create();
    sfText_setString(text, "ciao a qualcuno");
    sfText_setFont(text, font);
    sfText_setCharacterSize(text, 20);
 
    /* sfColor colore = sfColor_fromRGB(111,255,111); //aggiunto eventuale colore*/
    /* Start the game loop */
    while (sfRenderWindow_isOpen(window))
    {
        /* Process events */
        while (sfRenderWindow_pollEvent(window, &event))
        {
            /* Close window : exit */
            if (event.type == sfEvtClosed)
                sfRenderWindow_close(window);
        }
        /* Clear the screen */
        sfRenderWindow_clear(window, sfGreen);
        /* Draw the text */
       sfRenderWindow_drawText(window, text, NULL);
 
        /* Draw the text */
       sfRenderWindow_drawText(window, text, NULL);
        /* Update the window */
        sfRenderWindow_display(window);
    }
    /* Cleanup resources */
 
    sfText_destroy(text);
 
    sfRenderWindow_destroy(window);
    return EXIT_SUCCESS;
}