ROM Hack [Release] Gen 1 Pokemon VC wild encounter DV NTR Overlay

[shadowofdarkness]

Pokemon Generations 1 & 2 DV NTR overlay

Features include
DVs of wild and Party Pokemon including seeing if something is shiny or not, in both generations 1 and 2.

Plus some gen 2 exclusive features include
If a wild Pokemon is holding a item the overlay has a blue (!) marking at bottom right
Seeing a egg as it's generated (as second parent is put in daycare) and a "(!)" notification if you can pickup a egg.
Seeing the roaming legends as soon as they're released (so you can soft reset if you want something different).
A colored (!) matching the roaming legendary will appear if you are on the same route as it

For seeing party Pokemon DVs
In gen 1 look at the stats of the Pokemon and the overlay will be forced open to that specific one

For gen 2 your just highlight whatever one you want to see in the Pokemon list which auto opens and closes when in that list.
If you have a full team selecting cancel also shows the first Pokemon. If you don't have a full team it will show ghost data from whatever was last in that spot.
Having the Party view forced open and scrolling through other menus will also cycle through your Pokemon based on the index count from the top of the list.

Controls for gen 1 and 2
Wild Pokemon - This auto opens in a battle or can be toggled with the L trigger
Party Pokemon - Force toggle with the R trigger

The rest are gen 2 only
To toggle the unclaimed egg view use Y and see the next egg even before it's ready to pickup (as soon as parents are both in the daycare)

For the roaming legends in gen 2 the buttons are not toggles but you use one just to close.
I recommend starting with the direction then adding in the trigger to not open the party by accident.
Raikou is R + Left
Entei is R + Down
Suicune is R + Right (Gold and Silver only as he is not a roamer in Crystal) ***closes the overlay on Crystal***
To close the overlay use R + Up

Note about shiny Pokemon
Due to Bank using a different algorithm than gen 2 you can see multiple types of shinies and they are listed accordingly
Universal Shiny is the one and only DV combination that is shiny both in gen 2 and gen 7
Gen 2 Shiny means DO NOT put it into Pokemon Bank since it is only shiny in gen 2 games so far. (may be fixed to be shiny in gen 7 when official gen 2 VC is released)
Gen 7 Shiny means put it in Bank and transfer to Sun and Moon. It will be shiny (it's not shiny in gen 2 though)

The release in this post is for official VC releases of gen 1
For gen 2 use Traivers wireless trading patched versions.
Supports all languages with auto detection for gen 1 only
gen 2 is English only for now for Gold and Silver but Crystal is English and Spanish
The compiled plg file is in the zip with the source. You don't have to compile.

Screenshot
Please note having multiple views at once can lag the game. (Fun note pertaining to the Unclaimed Egg in the screenshot, breeding with a shiny Ditto gives a 1/64 chance of a shiny!)

Video

Spoiler: Videos

Video By Veund

UPDATES
October 9
Beta 3
Added toggling on and off for the automatic opening in wild battles (Dpad UP+Left Trigger)
Fixed bug causing the plugin to not work in Yellow version again

September 24
Beta support for official gen 2 VC games added in Attached section

July 17
Fixed bug causing the plugin to not work in Yellow version

Mar 9
A few things

Feb 27
All languages for gen 1
Fixed gen 2 party view
Added held item notification in gen 2

 

[Veund]

i tested this with Pokemon red and it didn't work i got some odd numbers like 00ff when picking my starter and 2000 when looking at my pokemon

 

[shadowofdarkness]

i tested this with Pokemon red and it didn't work i got some odd numbers like 00ff when picking my starter and 2000 when looking at my pokemon

This plugin is only for enemy Pokemon you are fighting, but that output is what it's supposed to look like, if for some reason it does the starter which I never tested or thought of 00ff would be 15 in both attack and defense and 0 in speed and special

 

[Veund]

no it is always 00ff (i reset to double check), in Pokemon blue the 2000 doesn't happen when checking your Pokemon just in red and nothing happens when you battle wild Pokemon it just stays as 0000

 

[shadowofdarkness]

I hoped the offsets would be the same because those roms are so similar but I guess this only works for Blue. I will start saves for Red and Yellow to find the correct offsets and make more versions of the plugin.

You are using the official VC releases right not any old injects since it may be possible using a different emulator Save state version may affect offsets.

 

[Veund]

nope I'm using legit vc releases of the games, I haven't tested yellow but I first tried red and it didn't work then tried blue and it worked, I can record it and show you if you like?

 

[RustInPeace]

I hoped the offsets would be the same because those roms are so similar but I guess this only works for Blue. I will start saves for Red and Yellow to find the correct offsets and make more versions of the plugin.

You are using the official VC releases right not any old injects since it may be possible using a different emulator Save state version may affect offsets.

Good luck on that, this is very promising.

 

[shadowofdarkness]

I have added a version that works in Red to the first post. I will get a version for Yellow tomorrow.

 

[shadowofdarkness]

I have added Yellow to the first post.

 

[Alex4U]

Cool! This works for JP and USA legit vc?

 

[shadowofdarkness]

They work with the USA for sure but I'm not sure and sort of doubt they would work for the JP versions. I'll write up a quick tutorial on how to find the offset so anyone can find it easy it only takes a few minutes.

 

[Zidapi]

They work with the USA for sure but I'm not sure and sort of doubt they would work for the JP versions. I'll write up a quick tutorial on how to find the offset so anyone can find it easy it only takes a few minutes.

Hello, you should update your plugin to be based off of the new fps overlay example, so no more battery

Great job on this btw, can't wait to see what else comes from the new overlay feature.

 

[shadowofdarkness]

For anyone that would like to add support for other region games.

How to find the wild encounters DVs in RAM

1: Start NTR debugger
2: Get into a wild encounter
3: Dump the RAM of the VC game
4: Catch the Pokemon
5: Repeat 2-4
6: Save
7: Open your save in any save editor to view the caught Pokemon's DVs
8: Open the first RAM dump in any hex editor
9: Search for the Pokemon's DVs in hex and list off all matches
10: Repeat 7-9 using the second RAM dump and Pokemon
11: Compare lists to find the common match which will be the correct offset
12: Add 0x8000000 to it since you found the offset from the start of your file not the full 3DS RAM

Note remember byte order in RAM is reverse but some editors list it in the other order so search for the right order (In RAM which I show it is Speed Spec Atk Def but you may have to search for Atk Def Speed Spec)


I also have no problem with people using this info to make better more complete plugins if they have more knowledge than me. So here are the USA offsets to help anyone along.

Red 0x89300a9 / Blue 0x892fd19 / Yellow 0x8930578

Other fun things that could be done but are to much for me would be to calculate the HP DV and show it. For it basically take the DVs in proper byte order atk and def first then think of it as a binary number where odds are 1 and evens are 0
Have some knowledge embedded that compares the DVs to the list of 15 and actually warn you with text if you have a shiny match.

 

[Veund]

so i have been looking at my ram dumps of the 3 Pokemon VC games I have and found that on dump_pid29_1.dmp of all 3 games on line 00800140 it states the Pokemon game

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 42 4C 55 45 »¹3>POKEMON BLUE

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 52 45 44 00 »¹3>POKEMON RED

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 59 45 4C 4C »¹3>POKEMON YELL
4F 57 00 80 30 31 03 1B 05 03 01 33 00 97 04 7C OW.€01.....3.—.|

couldn't you have a variable that checks that information then use a call statement to then call the offset for each game and make a universal file that would then work on all 3 games?

Something like

$Game_var = Hexthing

call $Game_var

POKEMON RED
offset = 0x89300a9
*OTHER CODE

POKEMON BLUE
offset = 0x892fd19
*OTHER CODE

POKEMON YELLOW
offset = 0x8930578
*OTHER CODE

END

 

[Alex4U]

For anyone that would like to add support for other region games.

How to find the wild encounters DVs in RAM

1: Start NTR debugger
2: Get into a wild encounter
3: Dump the RAM of the VC game
4: Catch the Pokemon
5: Repeat 2-4
6: Save
7: Open your save in any save editor to view the caught Pokemon's DVs
8: Open the first RAM dump in any hex editor
9: Search for the Pokemon's DVs in hex and list off all matches
10: Repeat 7-9 using the second RAM dump and Pokemon
11: Compare lists to find the common match which will be the correct offset
12: Add 0x8000000 to it since you found the offset from the start of your file not the full 3DS RAM

Note remember byte order in RAM is reverse but some editors list it in the other order so search for the right order (In RAM which I show it is Speed Spec Atk Def but you may have to search for Atk Def Speed Spec)


I also have no problem with people using this info to make better more complete plugins if they have more knowledge than me. So here are the USA offsets to help anyone along.

Red 0x89300a9 / Blue 0x892fd19 / Yellow 0x8930578

Other fun things that could be done but are to much for me would be to calculate the HP DV and show it. For it basically take the DVs in proper byte order atk and def first then think of it as a binary number where odds are 1 and evens are 0
Have some knowledge embedded that compares the DVs to the list of 15 and actually warn you with text if you have a shiny match.

I'll help you with JP version later.

 

[shadowofdarkness]

so i have been looking at my ram dumps of the 3 Pokemon VC games I have and found that on dump_pid29_1.dmp of all 3 games on line 00800140 it states the Pokemon game

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 42 4C 55 45 »¹3>POKEMON BLUE

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 52 45 44 00 »¹3>POKEMON RED

BB B9 33 3E 50 4F 4B 45 4D 4F 4E 20 59 45 4C 4C »¹3>POKEMON YELL
4F 57 00 80 30 31 03 1B 05 03 01 33 00 97 04 7C OW.€01.....3.—.|

couldn't you have a variable that checks that information then use a call statement to then call the offset for each game and make a universal file that would then work on all 3 games?

Something like

$Game_var = Hexthing

call $Game_var

POKEMON RED
offset = 0x89300a9
*OTHER CODE

POKEMON BLUE
offset = 0x892fd19
*OTHER CODE

POKEMON YELLOW
offset = 0x8930578
*OTHER CODE

END

That sounds promising but I don't know how to do it. I really don't know much about coding and stumbled through what I was able to do with help from Google. Im not stopping anyone from making a better version and releasing it.

 

[Veund]

I can program but i have no idea where to start with this, are you able to upload your sorce code so that i can learn from that? I have been looking at the code for the example plugins

 

[shadowofdarkness]

I can program but i have no idea where to start with this, are you able to upload your sorce code so that i can learn from that? I have been looking at the code for the example plugins

This is a diff of the clock examples main.c it is the only file I changed with 1 addition and 1 change. It technically still calculates the time just never displays it since I didn't know enough to strip it down.

12a13
> #define __dv (*(vu16*)0x0892fd19)
113c114
< xsprintf(buf, "%02d:%02d", hour, min);
---
> xsprintf(buf, "%04X", __dv);

 

[Veund]

Alright ill see if i can get it working over the weekend, i might inject the information into the fps plugin as it uses the lower screen and with the VC its not used for much givving far more room

 

[Veund]

OK!!!! it has taken me a while as I'm literally learning c as I go with this, but I finally have a universal plugin for the 3 Us versions of the games attached bellow

although unlike shadowofdarkness's it's based off the fps plugin not the clock plugin (its a tad easier to cut back, kinda) although it still renders on both screens for some reason