// Input: @items (array of items you want to choose from)
//        @item_names$ (names of the items in @items)
//        @default_choice$ (default option)
// Return:  @item (The selected item, or 0 if the default/something invalid was chosen)
//
// NOTE: DynamicItemMenu is ONLY used for scripts that need to do math with @item like tailor, dyer, bleacher
//       All other scripts should use DynamicItemMenu$

function|script|DynamicItemMenu
{
set @items_nr, getarraysize(@items);
if(@items_nr != getarraysize(@item_names$)) goto L_ArrayLengthMismatch;
if(@default_choice$ == "") set @default_choice$, "Never mind.";
goto L_pick_one_of_many_items;

L_pick_one_of_many_items:
    set @c, 0;
    set @i, 0;

    setarray @choice_n$, "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "";
    goto L_pick_choice_loop;

L_pick_choice_loop:
    if (@i >= @items_nr)
        goto L_choice_init_done;
    set @current, @items[@i];
    set @current_name$, @item_names$[@i];
    set @current_index, @i;
    set @i, @i + 1;

    if (countitem(@current) == 0)
        goto L_pick_choice_loop;
    set @choice_v[@c], @current;
    set @choice_n$[@c], @current_name$;
    set @choice_i[@c], @current_index;
    set @c, @c + 1;
    goto L_pick_choice_loop;

L_choice_init_done:
    set @choice_v[@c], 0;
    set @choice_n$[@c], @default_choice$;
    set @c, @c + 1;

    if (@c < 10)
        menu
            @choice_n$[0], L_MenuItems,
            @choice_n$[1], L_MenuItems,
            @choice_n$[2], L_MenuItems,
            @choice_n$[3], L_MenuItems,
            @choice_n$[4], L_MenuItems,
            @choice_n$[5], L_MenuItems,
            @choice_n$[6], L_MenuItems,
            @choice_n$[7], L_MenuItems,
            @choice_n$[8], L_MenuItems,
            @choice_n$[9], L_MenuItems;
    goto L_MenuItems;

L_MenuItems:
    if (@c < 10)
        goto L_choice_join;

    if (@c < 20)
        menu
            @choice_n$[0], L_MenuItems1,
            @choice_n$[1], L_MenuItems1,
            @choice_n$[2], L_MenuItems1,
            @choice_n$[3], L_MenuItems1,
            @choice_n$[4], L_MenuItems1,
            @choice_n$[5], L_MenuItems1,
            @choice_n$[6], L_MenuItems1,
            @choice_n$[7], L_MenuItems1,
            @choice_n$[8], L_MenuItems1,
            @choice_n$[9], L_MenuItems1,
            @choice_n$[10], L_MenuItems1,
            @choice_n$[11], L_MenuItems1,
            @choice_n$[12], L_MenuItems1,
            @choice_n$[13], L_MenuItems1,
            @choice_n$[14], L_MenuItems1,
            @choice_n$[15], L_MenuItems1,
            @choice_n$[16], L_MenuItems1,
            @choice_n$[17], L_MenuItems1,
            @choice_n$[18], L_MenuItems1,
            @choice_n$[19], L_MenuItems1;
    goto L_MenuItems1;

L_MenuItems1:
    if (@c < 20)
        goto L_choice_join;

    menu
        @choice_n$[0], L_choice_join,
        @choice_n$[1], L_choice_join,
        @choice_n$[2], L_choice_join,
        @choice_n$[3], L_choice_join,
        @choice_n$[4], L_choice_join,
        @choice_n$[5], L_choice_join,
        @choice_n$[6], L_choice_join,
        @choice_n$[7], L_choice_join,
        @choice_n$[8], L_choice_join,
        @choice_n$[9], L_choice_join,
        @choice_n$[10], L_choice_join,
        @choice_n$[11], L_choice_join,
        @choice_n$[12], L_choice_join,
        @choice_n$[13], L_choice_join,
        @choice_n$[14], L_choice_join,
        @choice_n$[15], L_choice_join,
        @choice_n$[16], L_choice_join,
        @choice_n$[17], L_choice_join,
        @choice_n$[18], L_choice_join,
        @choice_n$[19], L_choice_join,
        @choice_n$[20], L_choice_join,
        @choice_n$[21], L_choice_join,
        @choice_n$[22], L_choice_join,
        @choice_n$[23], L_choice_join,
        @choice_n$[24], L_choice_join,
        @choice_n$[25], L_choice_join,
        @choice_n$[26], L_choice_join,
        @choice_n$[27], L_choice_join,
        @choice_n$[28], L_choice_join,
        @choice_n$[29], L_choice_join,
        @choice_n$[30], L_choice_join,
        @choice_n$[31], L_choice_join;

L_choice_join:
    set @menu, @menu - 1;
    set @item, @choice_v[@menu];
    set @index, @choice_i[@menu];
    if (@menu >= @c)
        set @item, 0;
    goto L_Clean;

L_Clean:
    set @menu, 0;
    set @items_nr, 0;
    set @c, 0;
    set @i, 0;
    set @current, 0;
    set @current_name$, "";
    cleararray @choice_v, 0, getarraysize(@choice_v);
    cleararray @choice_n$, "", getarraysize(@choice_n$);
    cleararray @choice_i, 0, getarraysize(@choice_i);
    return;

L_ArrayLengthMismatch:
    debugmes "@items and @item_names$ array length mismatch";
    mapexit;
}




// Input: @items$ (array of items you want to choose from)
//        @item_names$ (names of the items in @items)
//        @default_choice$ (default option)
// Return:  @item$ (The selected item, or 0 if the default/something invalid was chosen)

function|script|DynamicItemMenu$
{
set @items_nr, getarraysize(@items$);
if(@items_nr != getarraysize(@item_names$)) goto L_ArrayLengthMismatch;
if(@default_choice$ == "") set @default_choice$, "Never mind.";
goto L_pick_one_of_many_items;

L_pick_one_of_many_items:
    set @c, 0;
    set @i, 0;

    setarray @choice_n$, "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "",
                             "", "", "", "", "", "", "", "";
    goto L_pick_choice_loop;

L_pick_choice_loop:
    if (@i >= @items_nr)
        goto L_choice_init_done;
    set @current$, @items$[@i];
    set @current_name$, @item_names$[@i];
    set @current_index, @i;
    set @i, @i + 1;

    if (countitem(@current$) == 0)
        goto L_pick_choice_loop;
    set @choice_v$[@c], @current$;
    set @choice_n$[@c], @current_name$;
    set @choice_i[@c], @current_index;
    set @c, @c + 1;
    goto L_pick_choice_loop;

L_choice_init_done:
    set @choice_v$[@c], "";
    set @choice_n$[@c], @default_choice$;
    set @c, @c + 1;

    if (@c < 10)
        menu
            @choice_n$[0], L_MenuItems,
            @choice_n$[1], L_MenuItems,
            @choice_n$[2], L_MenuItems,
            @choice_n$[3], L_MenuItems,
            @choice_n$[4], L_MenuItems,
            @choice_n$[5], L_MenuItems,
            @choice_n$[6], L_MenuItems,
            @choice_n$[7], L_MenuItems,
            @choice_n$[8], L_MenuItems,
            @choice_n$[9], L_MenuItems;
    goto L_MenuItems;

L_MenuItems:
    if (@c < 10)
        goto L_choice_join;

    if (@c < 20)
        menu
            @choice_n$[0], L_MenuItems1,
            @choice_n$[1], L_MenuItems1,
            @choice_n$[2], L_MenuItems1,
            @choice_n$[3], L_MenuItems1,
            @choice_n$[4], L_MenuItems1,
            @choice_n$[5], L_MenuItems1,
            @choice_n$[6], L_MenuItems1,
            @choice_n$[7], L_MenuItems1,
            @choice_n$[8], L_MenuItems1,
            @choice_n$[9], L_MenuItems1,
            @choice_n$[10], L_MenuItems1,
            @choice_n$[11], L_MenuItems1,
            @choice_n$[12], L_MenuItems1,
            @choice_n$[13], L_MenuItems1,
            @choice_n$[14], L_MenuItems1,
            @choice_n$[15], L_MenuItems1,
            @choice_n$[16], L_MenuItems1,
            @choice_n$[17], L_MenuItems1,
            @choice_n$[18], L_MenuItems1,
            @choice_n$[19], L_MenuItems1;
    goto L_MenuItems1;

L_MenuItems1:
    if (@c < 20)
        goto L_choice_join;

    menu
        @choice_n$[0], L_choice_join,
        @choice_n$[1], L_choice_join,
        @choice_n$[2], L_choice_join,
        @choice_n$[3], L_choice_join,
        @choice_n$[4], L_choice_join,
        @choice_n$[5], L_choice_join,
        @choice_n$[6], L_choice_join,
        @choice_n$[7], L_choice_join,
        @choice_n$[8], L_choice_join,
        @choice_n$[9], L_choice_join,
        @choice_n$[10], L_choice_join,
        @choice_n$[11], L_choice_join,
        @choice_n$[12], L_choice_join,
        @choice_n$[13], L_choice_join,
        @choice_n$[14], L_choice_join,
        @choice_n$[15], L_choice_join,
        @choice_n$[16], L_choice_join,
        @choice_n$[17], L_choice_join,
        @choice_n$[18], L_choice_join,
        @choice_n$[19], L_choice_join,
        @choice_n$[20], L_choice_join,
        @choice_n$[21], L_choice_join,
        @choice_n$[22], L_choice_join,
        @choice_n$[23], L_choice_join,
        @choice_n$[24], L_choice_join,
        @choice_n$[25], L_choice_join,
        @choice_n$[26], L_choice_join,
        @choice_n$[27], L_choice_join,
        @choice_n$[28], L_choice_join,
        @choice_n$[29], L_choice_join,
        @choice_n$[30], L_choice_join,
        @choice_n$[31], L_choice_join;

L_choice_join:
    set @menu, @menu - 1;
    set @item$, @choice_v$[@menu];
    set @index, @choice_i[@menu];
    if (@menu >= @c)
        set @item$, "";
    goto L_Clean;

L_Clean:
    set @menu, 0;
    set @items_nr, 0;
    set @c, 0;
    set @current_index, 0;
    set @i, 0;
    set @current$, 0;
    set @current_name$, "";
    cleararray @choice_v$, "", getarraysize(@choice_v$);
    cleararray @choice_n$, "", getarraysize(@choice_n$);
    cleararray @choice_i, 0, getarraysize(@choice_i);
    return;

L_ArrayLengthMismatch:
    debugmes "@items$ and @item_names$ array length mismatch";
    mapexit;
}