[Script] [Pokeruby/Pokeemerald] Script to let Pokémon use HM without knowing them

[McPaul]

I think you should focus your attention on src/pokemon_menu.c, more specifically this function:

Spoiler:

static void sub_8089A8C(void)
{
    sPokeMenuOptionsNo = 0;
    // if checking pokemon is an egg, we can't give it an item and it doesn't know any move
    if (GetMonData(&gPlayerParty[gLastFieldPokeMenuOpened], MON_DATA_IS_EGG))
    {
        AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_SUMMARY);
        AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_SWITCH);
        AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_CANCEL);
    }
    else
    {
        u16 moveID, tableID;
        for (moveID = 0; moveID < 4; moveID++) // 4, max number of possible field moves
        {
            for (tableID = 0; sPokeMenuFieldMoves[tableID] != sFieldMovesTerminator; tableID++)
            {
                if (GetMonData(&gPlayerParty[gLastFieldPokeMenuOpened], MON_DATA_MOVE1 + moveID) == sPokeMenuFieldMoves[tableID])
                {
                    u8 fieldID = tableID + POKEMENU_FIRST_FIELD_MOVE_ID;
                    AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, fieldID);
                    break;
                }
            }
        }
        AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_SUMMARY);

        // can't switch a pokemon if it's the only one in the party
        if (GetMonData(&gPlayerParty[1], MON_DATA_SPECIES) != 0)
            AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_SWITCH);

        if (ItemIsMail(GetMonData(&gPlayerParty[gLastFieldPokeMenuOpened], MON_DATA_HELD_ITEM)))
            AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_MAIL);
        else
            AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_ITEM);

        AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, POKEMENU_CANCEL);
    }
}

The code that seems to deal with adding "CUT" or "SURF" or whatever to that list seems to be this part:

u16 moveID, tableID;
        for (moveID = 0; moveID < 4; moveID++) // 4, max number of possible field moves
        {
            for (tableID = 0; sPokeMenuFieldMoves[tableID] != sFieldMovesTerminator; tableID++)
            {
                if (GetMonData(&gPlayerParty[gLastFieldPokeMenuOpened], MON_DATA_MOVE1 + moveID) == sPokeMenuFieldMoves[tableID])
                {
                    u8 fieldID = tableID + POKEMENU_FIRST_FIELD_MOVE_ID;
                    AppendToList(sPokeMenuOptionsOrder, &sPokeMenuOptionsNo, fieldID);
                    break;
                }
            }
        }

Ok thank you very much! I'll study that and see if I'm able to reach an outcome. I'm currently working on adding Egg Moves at the Move Relearner.

 

[Meister_anon~Master_o f_None]

Hello, thanks a lot! Exploring this might be a key to the solution!

I had just about solved this the other day too, then I messed up and lost my data.

just went back and reimplemented stuff, but the last thing to consider for trying get this working, (that I still haven't figured out yet)

is figuring out how to prevent adding the same move to the list more than once,
and also keep the list from growing beyond 4 moves.

 

[kassius_kan]

Ok thank you very much! I'll study that and see if I'm able to reach an outcome. I'm currently working on adding Egg Moves at the Move Relearner.

hello could you make the files you edited available?

I'm crazy after this function for my rom