Allegro Draw Rectangle Lesson 3

// gcc -Wall 3.c -o 3 $(pkg-config --libs allegro-5.0 allegro_image-5.0 allegro_primitives-5.0)
#include <allegro5/allegro.h>
#include <allegro5/allegro_primitives.h>

int main(int argc, char **argv) {

    if(!al_init()) {
        return -1;
    }

    ALLEGRO_DISPLAY *display;
    display = al_create_display(400, 400);

    if(!display) {
        return -1;
    }

    al_init_primitives_addon();

    al_clear_to_color(al_map_rgb(0, 0, 0));
    al_draw_rectangle(10, 10, 200, 150, al_map_rgb(255, 0, 0), 0);

    al_flip_display();

    al_rest(60.0);
    al_destroy_display(display);

    return 0;
}