Simple Modifications Directory

[AlmightyK]

REMOVING LEVEL FROM COMBAT STATISTICS EMERALD

ALTERING DAMAGE
Open src/battle_util.c and find

dmg = ((gBattleMons[battlerAtk].level * 2) / 5) + 2;

Replace gBattleMons[battlerAtk].level with a number of your choice, all damage will use this number in place of the mons level.

ALTERING STATS
Open src/pokemon.c and find

s32 n = (((2 * baseStat + iv + ev / 4) * level) / 100) + 5;

You can then replace level with a static number as above, though mine was altered to

(((baseStat + iv + ev / 4))) + 5;

to keep it simpler to calculate.

To alter HP find

newMaxHP = (((n + hpEV / 4) * level) / 100) + level + 10;

and change level again. Or to allow some kind of growth change the formula to

newMaxHP = (((n + hpEV / 4))) + level + 10;

which will give exactly 1 HP per level (plus EVs).

(Apologies for the formatting, forum formatting is not my forte)

 

[bitter6290]

Just out of curiosity, why would you want to do this? Wouldn't this make battles at high levels last dozens of times longer than battles at low levels?

 

[AlmightyK]

Just out of curiosity, why would you want to do this? Wouldn't this make battles at high levels last dozens of times longer than battles at low levels?

Not really. Late game EVs still increase stats, as well as having access to better moves and evolutions from normal levels.

 

[Anon822]

Multichoice2 - Improved Multichoice Command (Emerald)

This modification adds the event script command "multichoice2", which combines the functionality of the three pre-existing multichoice commands(multichoice, multichoicegrid, multichoicedefault) into a single command and lets you define the multichoice options as strings within your scripts:

Multichoice2_Demo::
    messageinstant Text_Demo1
    multichoice2 1, 1, Text_DemoOptions
    closemessage
    end

Text_Demo1:
    .string "Select an option.$"

Text_DemoOptions:
    .string "Option 1$"
    .string "Option 2$"
    .string "Option 3$"
    .string "$"

Setup:

Spoiler:

1. Open src/script_menu.c and paste these functions at the end:

void DrawMultichoiceMenuCustom(u8 left, u8 top, u8 multichoiceId, u8 ignoreBPress, u8 cursorPos, const struct MenuAction *actions, int count){
    int i, windowId, width = 0;
    u8 newWidth;
    for (i = 0; i < count; i++){
        width = DisplayTextAndGetWidth(actions[i].text, width);
    }
    newWidth = ConvertPixelWidthToTileWidth(width);
    left = ScriptMenu_AdjustLeftCoordFromWidth(left, newWidth);
    windowId = CreateWindowFromRect(left, top, newWidth, count * 2);
    SetStandardWindowBorderStyle(windowId, 0);
    PrintMenuTable(windowId, count, actions);
    InitMenuInUpperLeftCornerNormal(windowId, count, cursorPos);
    ScheduleBgCopyTilemapToVram(0);
    InitMultichoiceCheckWrap(ignoreBPress, count, windowId, multichoiceId);
}

bool8 ScriptMenu_MultichoiceGridCustom(u8 left, u8 top, u8 cursorPos, bool8 ignoreBPress, u8 columnCount, const struct MenuAction *actions, int count){
    if (FuncIsActiveTask(Task_HandleMultichoiceGridInput) == TRUE){
        return FALSE;
    }
    else{
        u8 taskId;
        u8 rowCount, newWidth;
        int i, width;
        gSpecialVar_Result = 0xFF;
        width = 0;
        for (i = 0; i < count; i++){
            width = DisplayTextAndGetWidth(actions[i].text, width);
        }
        newWidth = ConvertPixelWidthToTileWidth(width);
        left = ScriptMenu_AdjustLeftCoordFromWidth(left, columnCount * newWidth);
        rowCount = count / columnCount;
        taskId = CreateTask(Task_HandleMultichoiceGridInput, 80);
        gTasks[taskId].data[4] = ignoreBPress;
        gTasks[taskId].data[6] = CreateWindowFromRect(left, top, columnCount * newWidth, rowCount * 2);
        SetStandardWindowBorderStyle(gTasks[taskId].data[6], 0);
        PrintMenuGridTable(gTasks[taskId].data[6], newWidth * 8, columnCount, rowCount, actions);
        InitMenuActionGrid(gTasks[taskId].data[6], newWidth * 8, columnCount, rowCount, cursorPos);
        CopyWindowToVram(gTasks[taskId].data[6], COPYWIN_FULL);
        return TRUE;
    }
}

Note that the DrawMultichoiceMenuCustom function is the same as in DizzyEgg's BW Repel modification. If you've applied that modification you should only copy ScriptMenu_MultichoiceGridCustom, and remove the static keyword from DrawMultichoiceMenuCustom.

2. Open include/script_menu.h and include menu.h and add declarations for the new functions:

#ifndef GUARD_SCRIPT_MENU_H
#define GUARD_SCRIPT_MENU_H
[span="background-color:green"]+ #include "menu.h"[/span]

extern const u8 *const gStdStrings[];

bool8 ScriptMenu_Multichoice(u8 left, u8 top, u8 multichoiceId, bool8 ignoreBPress);
bool8 ScriptMenu_MultichoiceWithDefault(u8 left, u8 top, u8 multichoiceId, bool8 ignoreBPress, u8 defaultChoice);
bool8 ScriptMenu_YesNo(u8 left, u8 top);
bool8 ScriptMenu_MultichoiceGrid(u8 left, u8 top, u8 multichoiceId, bool8 ignoreBPress, u8 columnCount);
bool8 ScriptMenu_ShowPokemonPic(u16 species, u8 x, u8 y);
bool8 (*ScriptMenu_HidePokemonPic(void))(void);
int ConvertPixelWidthToTileWidth(int width);
u8 CreateWindowFromRect(u8 x, u8 y, u8 width, u8 height);
void ClearToTransparentAndRemoveWindow(u8 windowId);
int DisplayTextAndGetWidth(const u8* str, int width);
int ScriptMenu_AdjustLeftCoordFromWidth(int left, int width);
bool16 ScriptMenu_CreatePCMultichoice(void);
void ScriptMenu_DisplayPCStartupPrompt(void);

[span="background-color:green"]+ bool8 ScriptMenu_MultichoiceGridCustom(u8 left, u8 top, u8 cursorPos, bool8 ignoreBPress, u8 columnCount, const struct MenuAction *actions, int count);
+ void DrawMultichoiceMenuCustom(u8 left, u8 top, u8 multichoiceId, u8 ignoreBPress, u8 cursorPos, const struct MenuAction *actions, int count);[/span]
#endif //GUARD_SCRIPT_MENU_H

3. Open src/scrcmd.c and paste this function at the end of the file:

bool8 ScrCmd_multichoice2(struct ScriptContext *ctx){
    u8 x = ScriptReadByte(ctx);
    u8 y = ScriptReadByte(ctx);
    char* choices = (char*)ScriptReadWord(ctx);
    bool8 ignoreBPress = ScriptReadByte(ctx);
    u8 columns = ScriptReadByte(ctx);
    u8 defaultChoice = ScriptReadByte(ctx);
    if((u32)choices < 0x1000000){ //choices is a multichoiceId
        if(columns > 1)
            ScriptMenu_MultichoiceGrid(x, y, (u32)choices, ignoreBPress, columns);
        else
            ScriptMenu_MultichoiceWithDefault(x, y, (u32)choices, ignoreBPress, defaultChoice);
        ScriptContext1_Stop();
        return TRUE;
    }else{ //choices is a string
        struct MenuAction menuItems[16] = {NULL};
        u8 count = 0;
        while(count < ARRAY_COUNT(menuItems)){
		    int len = StringLength(choices);
		    if(!len) break;
		    menuItems[count++].text = choices;
		    choices += len + 1;
        }
        if(defaultChoice >= count)
            defaultChoice = 0;
        if (count > 0){
		    if(columns > 1)
			    ScriptMenu_MultichoiceGridCustom(x, y, defaultChoice, ignoreBPress, columns, menuItems, count);
		    else
			    DrawMultichoiceMenuCustom(x, y, 0, ignoreBPress, defaultChoice, menuItems, count);
            ScriptContext1_Stop();
            return TRUE;
	    }
    }
    return FALSE;
}

4. Open data/script_cmd_table.inc and add the command to the list:

@@ -227,6 +227,7 @@ gScriptCmdTable::
 	.4byte ScrCmd_warpwhitefade             @ 0xe0
 	.4byte ScrCmd_buffercontestname         @ 0xe1
 	.4byte ScrCmd_bufferitemnameplural      @ 0xe2
[COLOR="Lime"]+	.4byte ScrCmd_multichoice2      @ 0xe3[/COLOR]
 
 gScriptCmdTableEnd::
 	.4byte ScrCmd_nop

5. Open asm/macros/event.inc and paste this script macro at the end:

        @ Multichoice2 (https://www.pokecommunity.com/showpost.php?p=10521985)
	@ Displays a multichoice box from which the user can choose a selection, and blocks script execution until a selection is made.
	@ Parameters:
	@ - x & y are tile coordinates for the top-left corner of the multichoice.
	@ - choices can either be the id of predefined options (sMultichoiceLists)
	@ OR a string pointer to the options (each option must end with $ and the option list ends with an empty option).
	@ - ignoreBPress prevents backing out of the menu with the B button if set to a non-zero value.
	@ - per_row is the number of options displayed on each horizontal row.
	@ - cursorPos is the cursor's starting position.
	.macro multichoice2 x:req, y:req, choices:req, ignoreBPress=0, per_row=1, cursorPos=0
	.byte 0xe3
	.byte \x
	.byte \y
	.4byte \choices
	.byte \ignoreBPress
	.byte \per_row
	.byte \cursorPos
	.endm

Obviously if you've previously added script commands or are replacing some other command, you should change the 0xe3 in the macro to match whatever index you inserted the command at in data/script_cmd_table.inc

6. (OPTIONAL) Since multichoice2 implements the features of the other multichoice commands, you can rewrite their macros as:

	.macro multichoice x:req, y:req, multichoiceId:req, ignoreBPress:req
	multichoice2 \x, \y, \multichoiceId, \ignoreBPress
	.endm

	.macro multichoicedefault x:req, y:req, multichoiceId:req, default:req, ignoreBPress:req
	multichoice2 \x, \y, \multichoiceId, \ignoreBPress, 1, \default
	.endm

	.macro multichoicegrid x:req, y:req, multichoiceId:req, per_row:req, ignoreBPress:req
	multichoice2 \x, \y, \multichoiceId, \ignoreBPress, \per_row
	.endm

This will allow you to later replace these commands in the script command table with other custom commands without breaking existing scripts.

 

[AlmightyK]

[Pokeemerald] Earn battle points from trainer battles (with a variable)

The following changes allow you to earn battle frontier points from trainer battles by setting a variable.
Variable 0x8003 is used to activate this routine and also overrides the current trainer battle transition (a random transition from the battle frontier table is used instead).
Variable 0x8004 controls the amount of points earned from the battle. By default, the string is limited to 3 digits (999 points).

Both variables need to be set before the trainerbattle command, and they are automatically reset upon the player winning (or upon whiteout).

All of the changes can be found in this commit:
https://github.com/Scyrous/pokeemerald/commit/f69452cb557bc2b06bf68fab67a6920621e28541

Demonstration:

After defeating Steven in battle, the player earns a whopping 15 battle points.

Usage:

Is there a way to make this the default for each trainer, or would I have to apply the variable to each individual trainer match?

 

[MapleFall]

Start menu Page turning

My English is not very good, so please forgive me if there are grammatical errors

When I added content to the start menu, I found that the menu could not accommodate the new content, so I did research

Firstly,open "src/strings.c"
Change the content of gText_MenuExit to "NextPage".

Then add these following contests:
//Other options you want to join.
const u8 Text_MenuPage[]=_("LasePage");

Secondly,open include/strings.h.Add these codes:
//Other options you want to join.
extern const u8 gText_MenuPage[];

Thirdly,open src/start_menu.c.Add "menu_action_page" and the content you want to add to enum.

Next,define something new.
EWRAM_DATA static u8 sStartMenuPage = 0;
//Other options you want to join.
static bool8 StartMenuChangePage(void);
static void BuildSecondStartMenu(void);

Then add these code to sStartMenuItems:
//Other options you want to join.
{gText_MenuPage, {.u8_void = StartMenuChangePage}}

Finally,Modify some function.

BuildStartMenuActions:
static void BuildStartMenuActions(void)
{
sNumStartMenuActions = 0;

if (sStartMenuPage==0) {
if (IsUpdateLinkStateCBActive() == TRUE)
{
BuildLinkModeStartMenu();
}
else if (InUnionRoom() == TRUE)
{
BuildUnionRoomStartMenu();
}
else if (GetSafariZoneFlag() == TRUE)
{
BuildSafariZoneStartMenu();
}
else if (InBattlePike())
{
BuildBattlePikeStartMenu();
}
else if (InBattlePyramid())
{
BuildBattlePyramidStartMenu();
}
else if (InMultiPartnerRoom())
{
BuildMultiPartnerRoomStartMenu();
}
else
{
BuildNormalStartMenu();
}
}
if (sStartMenuPage==1) {
BuildSecondStartMenu();
}
}

Search:
if (gMenuCallback != StartMenuSaveCallback
&& gMenuCallback != StartMenuExitCallback
&& gMenuCallback != StartMenuSafariZoneRetireCallback
&& gMenuCallback != StartMenuBattlePyramidRetireCallback)

Change it to:
if (gMenuCallback != StartMenuSaveCallback
&& gMenuCallback != StartMenuExitCallback
&& gMenuCallback != StartMenuSafariZoneRetireCallback
&& gMenuCallback != StartMenuBattlePyramidRetireCallback
&& gMenuCallback != StartMenuChangePage)

Add new function:
static void BuildSecondStartMenu(void) {
//Other options you want to join.
AddStartMenuAction(MENU_ACTION_EXIT);
}

//Other functions you want to join

static bool8 StartMenuChangePage(void) {
sStartMenuPage=0;
RemoveExtraStartMenuWindows();
HideStartMenu();
ShowStartMenu();
}

Lastly,change StartMenuExitCallBack to:
static bool8 StartMenuExitCallback(void)
{
sStartMenuPage=1;
RemoveExtraStartMenuWindows();
HideStartMenu();
ShowStartMenu();
return TRUE;
}

Now I know a bug:
When I finish turning the page, I must press B to close the menu and turn it on again to work normally, otherwise I will not be able to press the up/down key.

 

[MapleFall]

Increase bag item capacity(em)

When I increase TMHM capacity,I discover this code:
#define MAX_BAG_ITEM_CAPACITY 99
So I try to increase bag item capacity.

Firstly,open include/constants/items.h,and change MAX_BAG_ITEM_CAPACITY to 999,change BAG_ITEM_CAPACITY_DIGITS to 3.

Then,open src/item.c,search AddPyramidBagItem,Change "*newquantities" in this function to u16.

Finally,open include/shop.h,In the "shopdata",change maxquantity to u16.

I haven't found any bugs yet.

 

[Lunos]

[Pokeemerald] TM Case ported from FR and custom one!

There's a super small issue with the improved version of the TM case, TheXaman.
It seems the palette of the icon of the species in the party doesn't get properly loaded and tinted after you return from the party menu to the TM case.

 

[Anon822]

Physical Special Split Icons In Battle (Emerald)

This modification does exactly what the name says. It's for pokeemerald-expansion only.

Setup:

Spoiler:

1. Open src/battle_controller_player.c and paste this function at the end of the file:

static void MoveSelectionDisplaySplitIcon(void){
	static const u16 sSplitIcons_Pal[] = INCBIN_U16("graphics/interface/split_icons_battle.gbapal");
	static const u8 sSplitIcons_Gfx[] = INCBIN_U8("graphics/interface/split_icons_battle.4bpp");
	struct ChooseMoveStruct *moveInfo;
	int icon;

	moveInfo = (struct ChooseMoveStruct*)(&gBattleResources->bufferA[gActiveBattler][4]);
	icon = GetBattleMoveSplit(moveInfo->moves[gMoveSelectionCursor[gActiveBattler]]);
	LoadPalette(sSplitIcons_Pal, 10 * 0x10, 0x20);
	BlitBitmapToWindow(B_WIN_DUMMY, sSplitIcons_Gfx + 0x80 * icon, 0, 0, 16, 16);
	PutWindowTilemap(B_WIN_DUMMY);
	CopyWindowToVram(B_WIN_DUMMY, 3);
}

2. Add a declaration for it at the top of the file:

static void MoveSelectionDisplaySplitIcon(void);

3. Add a call to it at the end of MoveSelectionDisplayMoveType:

static void MoveSelectionDisplayMoveType(void)
{
    u8 *txtPtr;
    struct ChooseMoveStruct *moveInfo = (struct ChooseMoveStruct*)(&gBattleResources->bufferA[gActiveBattler][4]);

    txtPtr = StringCopy(gDisplayedStringBattle, gText_MoveInterfaceType);
    *(txtPtr)++ = EXT_CTRL_CODE_BEGIN;
    *(txtPtr)++ = EXT_CTRL_CODE_FONT;
    *(txtPtr)++ = 1;

    StringCopy(txtPtr, gTypeNames[gBattleMoves[moveInfo->moves[gMoveSelectionCursor[gActiveBattler]]].type]);
    BattlePutTextOnWindow(gDisplayedStringBattle, B_WIN_MOVE_TYPE);
	
[COLOR="Lime"]+	MoveSelectionDisplaySplitIcon();[/COLOR]
}

4. Open src/battle_bg.c and change the window templates of the PP and DUMMY windows to these:

    [B_WIN_PP] = {
        .bg = 0,
        .tilemapLeft = 23,
        .tilemapTop = 55,
        .width = 2,
        .height = 2,
        .paletteNum = 5,
        .baseBlock = 0x0290,
    },
    [B_WIN_DUMMY] = {
        .bg = 0,
        .tilemapLeft = 21,
        .tilemapTop = 55,
        .width = 2,
        .height = 2,
        .paletteNum = 10,
        .baseBlock = 0x0294,
    },

4.1. Make the same change in gBattleArenaWindowTemplates too.


5. Save the following image in your project as graphics/interface/split_icons_battle.png

(also available as the attachment to this post)

Feel free to rename the B_WIN_DUMMY constant to something more fitting like B_WIN_SPLIT_ICON.

DISCLAIMER: I have no idea if background palette 10 is actually free to use. Let me know if you run into palette issues or know of a better palette to use for the icon.

 

[セケツ]

[PokeEmerald] Add a New Wallpaper to the Pokemon Storage Box

For the Pokemon Storage System (Pokebox in PC), it is some hacks that have succeeded in making some brand new wallpapers inserted into their pokebox in PC. (or simply replaced the original). As far as I know, this small, hardly noticed but necessary (Personally thought) feature has been completed by an IPS patch developed for the binary rom hacking field several years ago. But it's a shame that that patch was only compatible for FireRed (BPRJ Only), there isn't any port of it for any version of Pokeemerald until now, and there is no doubt that it can not be used on any version of Pokeemerald at all.
Well, since I have stepped into the decomp-hacking field for some days, I had luckily found it PRETTY MUCH EASIER to recreate this feature just by editing the source files directly.
Till here, if someone still doesn't get what I said, please take a look at the picture below. Here is an original wallpaper of "the ID card of trainer", which was made & inserted into the ROM by myself.

And now, without any explanation more, I will tell how to do it through the text below. Moreover, there is no doubt that this my presenting solution below is CERTAINLY NOT the only, safe or completely & authortically correct way to solve this problem mentioned. If anyone read this post finds any error existing in it or has much better and simpler ways, please give a reply or point it out, or just forgive my ignorance at least. Very Appreciated.

Step 1. Some basic knowledge about the wallpapers of pokebox.

Spoiler:

Before we get started, I think it necessary to get to know some basic knowledge of the wallpapers & how they were stored & presented in the game files. Hence, let's take a thorough look.

As everyone can see, all the wallpapers of pokebox are constructed by three parts, the background of the small & upper box, the edge frame of the main box below, and the background of the main box itself.
By clicking the "wallpaper" button of the box menu, and then selecting any other choice freely except for the one being presented now to change the whole wallpaper itself, you will noticed that all those three things mentioned before: the upper box, the edge frame of main box, and the main box itself will be changed at the same time.

Open your decomp files of Pokeemerald, you can easily find a folder named "wallpapers" under the path "graphics/pokemon_stroage", which contains all the tiles (.png files) & tilemaps (.bin files) that were used & displayed in the game. What's more, for many wallpapers appeared in PokeEmerald, they are given two tiles files: one's named "frame.png", used not only for the upper box display above, but also for the edge frame of the main box. the other is named "bg.png", which contains the tiles used for the background of main box itself.
Let's turn to tilemap studio & take a look at the files of wallpaper named "city theme" to prove what I have said above.

Moreover, there is another affair of importance, these two tiles files: "bg.png" & "frame.png" are separated, but when it comes to tilemap editing, they must be combined closely WITHOUT ANY SPACE since both of them are used for a same tilemap. Although there are truly some spaces between them since they are two separate pictures.

Note: Some wallpapers share their upper box and frames' tiles with others, so they only have the "bg.png" for the tile of the main box. Moreover, for the "custom" daisuki wallpapers presented in RSE (Given by the father of an unhappy girl in Rustboro City by using some special passwords). the tile files of them only contains tiles of some elements which could be freely used & combined. Nevertheless, It is our goal here that is to just make a brand new wallpaper & insert it into our hacks, so there is no need to worry too much about it. (We needn't make a "daisuki wallpaper" here, right?)
And that's all for the basic knowledge of wallpapers of the pokebox.

Step 2. Preparing for the resources, tiles & tilemap.

(1) For the Resources:

Spoiler:

First of all, the initial thing you have to go for is to draw & make the resources of your wallpapers. Remember to put all of them into the proper sizes, And the size parameters are provided below.
The Upper box: 124x22.

The Main box (The edge frames are contained): 156x116.

And also, do not forget that all your works must be strictly limited to a 16-COLOR palette. Although the upper box / frames & the main box could use different palettes. Both of their palettes can only have 16 colors in total.
Moreover, please don't forget that the upper box & the main box's frames share the same one palette.

(2) For the Tiles:

Spoiler:

After completed your self-made wallpaper, you need to copy & paste all of these two your works to one canva that is a little bit bigger, in order to dividing it into tiles & fragments.
For this step, I sincerely recommend anyone making tiles to use some image editor that can freely define the grid (Aseprite is a very good tool I think), so that it can make you clearly see where to make the boundaries and extract the fragments.
Taking good use of the image editor, defining & making a perfect 8x8 grid net for tile dividing, and placing the resources of the wallpaper into the "PROPER POSITION". Just do it as the pictures that I showed you below.

Here please take a more careful look than ever to the edge, since all the wallpapers files in the game is put in the way just the same as the picture below did. And it's of great significance to the tile division.

Then, it's time for splitting this "giant picture" up, making plenty of 8x8 tiles and combining them into two separated tile pictures finally, just based on where they come from (The upper box & the frames; or the main box itself). And here, since it's a basic knowledge of binary rom hacking, there is no need for me to explain how to do it here.
Just show what I have done at last here instead...

(3) For the Tilemap:

Spoiler:

And finally, it comes to remake.
Open the tilemap studio (or NTME), create a new "GBA 4bpp palettes" tilemap file & save it in .bin format, and then load both the two tilemap files generated before to redraw & recreate the original wallpaper on this blank .bin file.
It's my suggestion that you could also turn on the grid. By the way, you can also keep the original image editor open, through which you could compare both two side by side.

After the recreation of your proud works, looking into the palette. Then filling the palette of this new tile map just as the picture I will show below. If you forget it, you will notice that it is your new wallpaper that will have dynamic & strange colors palette that differ from time & boxes since the palette of the poke_storage system itself is always changed.

Step 3. Hacking the source files.

(1) Define the New Wallpaper:

Spoiler:

Having completed the necessary hacking of graphics, now it's time for us to look into the source files.
Open the C header file named "wallpapers.h" under the path: "src/data", which contains & defines all the wallpapers used in the pokeemerald game.
At the beginning of this file, you will notice that all the wallpapers used in this game was given a brief name just as the select menu did. Look through here, and then think out a special ＆unused name for your new wallpaper, and then put it just BEFORE the strings "WALLPAPER_FRIENDS".
Well, I named the wallpaper created by myself "IDCARD" this time, so I just simply put in "WALLPAPER_IDCARD" as the picture showed below.

And then scrolling down, find the place to define the tiles, tilesmap & palettes of the new wallpaper. Just before the place where the "unused" tilemap was defined.
Here is a picture of what I am talking about.

After that, find the place where to define the color of dynamic text parameter, which is displayed in the upper box of the wallpaper. Same as the the former step, what you need to do is just copy & paste a new line and change the declaration to your new wallpaper that you want to add in.

Finally, scrolling down to find the place where to define the entry of the wallpaper, copy & paste a line of the same strings for your new wallpaper just below it.

That's all, saving the changes and closing this file.

(2) Add the graphic rules for the new wallpaper:

Spoiler:

Since the new wallpaper is also a graphic resource that contains two tiles files. And both of these two share the same 160x144 tilemap files. Therefore, it's necessary for us to define the rules of its displaying.
Open the "graphics_files_rules.mk" file lying in the root menu of your decomp files folder. Scrolling down to find the lines that give the definition & description about some rules of the wallpapers of pokebox.
And then add the new lines & strings of your new wallpaper. Remember what you need to change is not only the files name & the path, but also the number of your 8x8 tiles holding by the "frame.png" of your new wallpaper.
Just like the picture below. And remember the number you put in must +1, which I also marked in that picture.

After that, saving and closing it.

(3) Make the selection of new wallpaper appears in the select menu:

Spoiler:

After you have done all things above, the wallpaper created by yourself has been inserted into the ROM now, the left things is just how to make it displayed / can be chosen in the pokebox's menu like the original wallpapers in the game.
Open the C file "pokemon_storage_system.c", which lies in the "src" folder, in which you will find almost everything for the pokebox system.
First of all, jump to the strings where define the ID for the menu items, and add the new choice for your new wallpaper in "MENU_XXXX". For this time I add "MENU_IDCARD" instead, as the picture.

Next, jump to the place where define the menu of the selection of wallpaper. There lies a switch function for the display of different wallpaper. And it's time to set the text in the menu of your newly added wallpaper.

After you set all of them up, switch to the "strings.c" and its header file. Then do some necessary & important additions in these two files. It's the last thing that you need to do & confirm before you finally set your ROM up.

And that's all for this long & dreadful tutorial! (Sorry for my bad written English..). Saving all the files and making your ROM by using the compeller, then it's time to test & enjoy what you have done so far.

 

[セケツ]

[PokeEmerald] Remove the "Green Flash" screen of the opening's background when the pokemon logo appears

A very tiny discovery that I decided to post here for my bad memory's sake.
When it comes to the aspect of opening (not the entrie introduction, I mean, but only the opening itself from the appearance of the main "pokemon logo" title and later on), there is an unique feature that is only presented in that of Pokeemerald: at the moment the main "pokemon logo" title appearing, the background screen would turn to applegreen (or seems to be yellow for some specific emulators or hardwares) instead of the default black & white for some seconds as the shining slash moves forward, which seems like a "green flash" from my point of view.
For anyone could not understand or not know about what I am talking about, please look at these pictures below. What's more, I also post the same opening of Sapphire here for the comparison.

Spoiler:

Well, just by looking through the decomp files of Pokemon Ruby & Sapphire. I have figure out one way to remove it completely. Here is it.

1. Open the "title_screen.c" file under the src folder, which takes control of the whole introduction presented in the beginning of the game, and there lies some strings & texts related to the appearance of the pokemon logo & its background.

2. Find one function named "SpriteCB_PokemonLogoShine", then delete a second-grade "if & else" structure presented inside of this function, which you can clearly see in the picture below.

Spoiler:

3. Adjust the whole structure of this function itself based on the modification of last step in order to make it legal & executable, just like the picture below.

Spoiler:

Then save & test.

NOTES (Just Some personal opinion of this feature, whether reading it or not depends on you) :

Spoiler:

Personally speaking, this tiny difference itself is easily becoming neglected, since many of the players (even some of the GEN3 veterans or pokehackers doing rom-hacking) are used to pushing down the A button or the start button quickly & repeatedly at the moment they see the main title appears, just in order to jump to the main menu and start playing the game as soon as they could. What's more, since it is a dynamic palette that have no specific offests & only stored in the RAM. There is no ways but ASM to remove it in the field of binary hacking, which for some noob & rookie hackers like me only know little thing about.

All in all, if you find any bug or error of this discovery and this tutorial itself, please leave a comment or give a reply to me. For me, I would be very appreciated for everyone's reading & hope it will be helpful.

 

[Greenphx]

[Pokefirered] IV Rankings On the Summary Screen

This is a remake of the IV Rankings on the summary screen for binary. No code from there was used, only the images. This only modifies the PrintSkillsPage function, so it should be compatible with most branches / forks. You could probably modify the code to display EVs too, but it could get a bit cluttered.

How to modify:
The IV images can be found in graphics/interface/ivs. They use the type icons pal, so make sure to change them if you have modified the type icons. They are all 8x8, so make sure yours in 8x8 as well.

Here's some images:

Credits:
- DoesntKnowHowToPlay: Original Image, inspiration
- Lunos: Finding the original post

How to use:
- git remote add greenphx https://github.com/Greenphx9/pokefirered/
- git pull greenphx summary-screen-iv-rankings

 

[Greenphx]

[Pokefirered] Nature Coloured Stats

This is a remake of the nature coloured stats that Spherical Ice made for binary. I used some of DizzyEgg's code for the text colours.

How to modify:
To modify the colours of the text, open up pokemon_summary_screen.c and modify sNatureTextColors. I'm not sure how the colours work, so I'd recommend playing around with the numbers and seeing what happens. The first set is the grey numbers, second is red, and third is blue.

Here's some images:

Credits:
- Spherical Ice - Original binary version, inspiration
- DizzyEgg: Decomp Version

How to use:
- git remote add greenphx https://github.com/Greenphx9/pokefirered/
- git pull greenphx nature-colored-stats

If you've used my IV Rankings branch, you'll get a merge conflict. Just press "Accept Both Changes" On Visual Studio Code, and it should work (note this won't work for all merge conflicts)

 

[ghoulslash]

Useful Scripting Specials

[Pokeemerald] + [Pokefirered]

I've started this wiki page for sharing potentially useful scripting specials. I wanted to share here for reference as well

 

[Anon822]

Prevent Roamers From Fleeing (Emerald / Firered)

To prevent roamers from fleeing from battle, open data/battle_ai_scripts.s, locate AI_Roaming and change it to:

AI_Roaming:
	end

 

[kassius_kan]

Increase bag item capacity(em)

When I increase TMHM capacity,I discover this code:
#define MAX_BAG_ITEM_CAPACITY 99
So I try to increase bag item capacity.

Firstly,open include/constants/items.h,and change MAX_BAG_ITEM_CAPACITY to 999,change BAG_ITEM_CAPACITY_DIGITS to 3.

Then,open src/item.c,search AddPyramidBagItem,Change "*newquantities" in this function to u16.

Finally,open include/shop.h,In the "shopdata",change maxquantity to u16.

I haven't found any bugs yet.

in my rom there was this error according to the image because I'm using the expanded bag, I don't know if it would have a link or not, it's the only thing I think could cause a problem. Even when it disappears from this black screen, it goes straight to another screen and freezes the game, but if you register the item as in Key items, nothing happens.

 

[kassius_kan]

[Pokeemerald] Nature Mints

I've had this done for a while but wanted to share my custom implementation. The difference being that the summary screen will tell the player what the new and old natures are, instead of SWSH only showing the stat changes in the summary screen:

Notes:

• This repo includes dizzyegg's nature color code.
• It is also separate from RHH's item_expansion!

How To Get:

• git remote add ghoul https://github.com/ghoulslash/pokeemerald
• git pull ghoul mints

Sorry my dear, but the Git Pull of your nature_mints repository is giving error when using pokeemerald-expansion

 

[Lunos]

The item expansion already have that. This branch is only needed if you're using either expansion but not the item expansion/vanilla pokeemerald. Because you said that you are using those (all three?) expansions, you don't have to.
Heck, even ghoulslash confirmed this:

Unless you're not using item expansion for reasons, you don't have to do this since the item expansion already had those mints exist...

Hope you understand this!

That's partly wrong.
Allow me to clarify, the item data for the mints is definitely present in the item_expansion, but their effect is not. You still need Ghoul's branch for that, regardless of whether you use the IE.
The mints' effect, at least in the way Ghoul implemented them (though I can't think of a way around it myself) requires meddling with some of the structs that conform a savefile, and that's a bit of a landmine field.

 

[MariaJumpMan!]

That's partly wrong.
Allow me to clarify, the item data for the mints is definitely present in the item_expansion, but their effect is not. You still need Ghoul's branch for that, regardless of whether you use the IE.
The mints' effect, at least in the way Ghoul implemented them (though I can't think of a way around it myself) requires meddling with some of the structs that conform a savefile, and that's a bit of a landmine field.

Oh, I'm so sorry! I thought that its effects already been implemented since apparently it exist on the file list in item expansion... I will delete the post for avoid the confusions... Thank you for clarifying and clears it up to me, though! ^^

 

[MapleFall]

in my rom there was this error according to the image because I'm using the expanded bag, I don't know if it would have a link or not, it's the only thing I think could cause a problem. Even when it disappears from this black screen, it goes straight to another screen and freezes the game, but if you register the item as in Key items, nothing happens.

Ah? I don't know why, it doesn't appear on pret's pokeemerald