bool shown[ENDOFPACK];
    memset(shown, 0, sizeof(shown));

    bool inv_shown[ENDOFPACK];
    memset(inv_shown, 0, sizeof(inv_shown));

            if (shown[i]

            if (inv_shown[i]

            shown[i] = true;

            inv_shown[i] = true;

    bool ground_shown[MAX_ITEMS];
    memset(ground_shown, 0, sizeof(ground_shown));

            if (!show_any && mitm[i].base_type != type)

            if (ground_shown[i] || !show_any && mitm[i].base_type != type)

            ground_shown[i] = true;