int destroy_obstacle(WINDOW * win_game, struct obstaclelist * olist, struct obstacle * target_ob)
{
    mvwaddch(win_game, ob->y_pos, ob->x_pos, ' ');
    wrefresh(win_game);

    struct obstacle * prev;
    struct obstacle * cur;
    int state = EXIT_FAILURE;

    if (target_ob == olist->head)
    {
        olist->head = target_ob->next;
        free(target_ob);
        state = EXIT_SUCCESS;
        olist->count--;
    }
    else
    {
        /* Go through the list */
        for (cur = olist->head; cur != NULL; prev = cur, cur = cur->next)
        {
            if (cur == target_ob)
            {
                prev->next = cur->next;
                free(cur);
                state = EXIT_SUCCESS;
                olist->count--;
                break;
            }
        }
    }

    return state;
}