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Quick Research & Development Thread

operator

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First of all, thanks to everyone has already posted info in this thread. I'm all the way back to page 5 at the moment and have found so much useful information. Very appreciate of all the hard work.

I'm here to ask a couple of questions too though, and they are:

can tile movement permissions be changed in game? on the fly? and can the properties of person event be changed in game too? (specifically the unknown byte seen in AM when looking at such an event, which has been documented to control it's altitude)

Neither of these things are essential in getting the stuff I want to do working as I already know of some workarounds I can use, but It's still some information I'd like to have available if it is possible.

thanks.


Edit: and woah, well done Sperical Ice. I've been doing the same thing in my usercp notepad but with descriptions that'd be very unhelpful to anyone else but me. (or even me, at times. ahaha)

Edit 2: As well, in the hopes of giving something back (but also at the risk of seeming naive) here's a small amount of VBA cheats for EM that I made all the way back in 07 that manipulate some stuff that I still haven't seen done anywhere else.

I don't know whether you can derive anything useful from these but I'd very much like to be able to give back to this thread if at all possible, and so with that said, they are under the cut:

Spoiler:
 
Last edited:

TheRabbit

Banned
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Say I want to change which events cause your trainer card to change colors, what do I need to do? Is this controlled by simple flags or something more complicated?
 
Wobbu

Wobbu

bunger bunger bunger bunger
2,794
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After looking at Spherical Ice's Directory, I saw a link to a post about FireRed's Low HP track number in Sappy. For those who are curious about Emerald's Low HP track, it's number 90 in Sappy (for reference, the Littleroot test song is number 350).

For those who want XY's low HP theme, here is a midi that can be assembled right over Emerald's low HP theme with a quick free space repoint.

View attachment 73180
 
daniilS

daniilS

busy trying to do stuff not done yet
409
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Spherical Ice said:
Spoiler:

For some reason that post of mine completely disappeared without a trace, so I'm reposting it. http://pastebin.com/mfNSeBhL
Click to expand...

What on earth happened there!?
 
Le pug

Le pug

Creator of Pokémon: Discovery / Fat Kid
870
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Spherical Ice said:
Nevermind, the post has now been merged with the first post of the thread.
Click to expand...

IMO you should also add the threads to this list. Things like my threads "how to remove clouds from emerald titlescreen" are a popular question I've been asked so I made it it's own thread. Since it's easy to do, no one will comment and it'll get lost on page 2 and beyond. That's why I think threads should also be added to this list. : ]
 
Spherical Ice

Spherical Ice

5,256
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Le pug said:
IMO you should also add the threads to this list. Things like my threads "how to remove clouds from emerald titlescreen" are a popular question I've been asked so I made it it's own thread. Since it's easy to do, no one will comment and it'll get lost on page 2 and beyond. That's why I think threads should also be added to this list. : ]
Click to expand...

Doesn't that sort of defeat the purpose of this thread? This thread is for that kind of minor change, so you should probably just post here instead of making an entire thread, and if not, it doesn't belong here anyway, y'know? Feel free to repost that kinda stuff here too if you want, but I think having both a thread (which are already kind of indexed in the same way through the forum itself) and a link to it here is a tad redundant.
 

kearnseyboy6

Aussie's Toughest Mudder
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Alright, 0x020245B4 contains the playable time (hours 2 bytes, minutes 1 byte, millisecs 1 byte (sorta)) which is seen when you save the game.

Does Firered have a function which can start like a stopwatch (like emeralds cycle road area) or will I have to manipulate the data given above?
 
GoGoJJTech

GoGoJJTech

(☞ﾟヮﾟ)☞ http://GoGoJJTech.com ☜(ﾟヮﾟ☜)
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kearnseyboy6 said:
Alright, 0x020245B4 contains the playable time (hours 2 bytes, minutes 1 byte, millisecs 1 byte (sorta)) which is seen when you save the game.

Does Firered have a function which can start like a stopwatch (like emeralds cycle road area) or will I have to manipulate the data given above?
Click to expand...

Instead of manipulating the whole game engine just for that, copy the time from when you start the event, then get the current time and subtract, then you have the total time between the start and end of the event.
 

kearnseyboy6

Aussie's Toughest Mudder
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GoGoJJTech said:
Instead of manipulating the whole game engine just for that, copy the time from when you start the event, then get the current time and subtract, then you have the total time between the start and end of the event.
Click to expand...

That's what I plan to do, but Emerald already has a function that does that, wondering if FR has one
 
GoGoJJTech

GoGoJJTech

(☞ﾟヮﾟ)☞ http://GoGoJJTech.com ☜(ﾟヮﾟ☜)
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kearnseyboy6 said:
That's what I plan to do, but Emerald already has a function that does that, wondering if FR has one
Click to expand...

FR doesn't have an instance of this sort of timer, and there are no specials on it, so chances are, there is no function currently available that does 100% of what you want.
 

kearnseyboy6

Aussie's Toughest Mudder
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Hmm, well you probably want '[buffer1] fainted' which I found at 1a5476. The pointer to this is at 0xA05E4. That's all I know as of now
 
Touched

Touched

Resident ASMAGICIAN
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The routine you want is here 080A0618 (FireRed). Specifically, the code at 080A0648 is concerned with subtracting HP from the poisoned Pokemon. Check knizz's IDA Pro database for more info.
 
Danny0317

Danny0317

Fluorite's back, brah
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For emerald, to disable the need to have the first gym flag to use cut from the menu, it's at 0x1B5514. I'm trying to find surf, but I'm having some trouble. If anyone wants to help, the badge message, it's at 0x5E97FC.
Out of all the HMs that can be found from the menu, I find the most useless one... lol

Edit: Huh, this is pretty weird... For strength and rock smash it says something about not being able to use it there (omw to a rock smash rock, but for surf it says the badge stuff...)
Edit2: I CAN use rock smash from the menu... idk why though, I disabled the cut flag need..
 
Last edited:
Danny0317

Danny0317

Fluorite's back, brah
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Sorry for double post, but I made a doanimation list for emerald. Here it is:

emerald doanimations (I did this w/o audio, sorry)
0 - freeze
1 - cut
2 - cut tree
3 - freeze
4 - animation in grass
6 - shows weedle or butterfree
8 - Surf Wailmer appears under the player
9 - player GETS on the Wailmer
a - "poof" under the player
b - "poof" the NPC you call it from
c - grass animation below player
d - biggest WTF ever
e - water drop?
10- Small animation
12- grass animation
13- grass starts shaking
14- ^same but more intense
15- does a weird animation
16- blue animation
17- stars below the player
18- weird ugly things appear on the player
19- nurse joy, shows your pokemon and and the machine healing
1b- kinda looks like cut
1e- fly animation
1f- actually takes you flying
20- get off the bird and land
23- WTF
26- dig animation
2b- player raises pokeball, moves forward
2d- weird, glitchy thing appears in top left corner
31- sand (?) appears below the player
32- water (?) appears below the player
33- sweet scent (I think)
34- weird tiles animate
35- bubbles appear on the player
37- dust (?) falls from the sky
38- animating vines
39- weird animation
3a- also cut
3c- weird animation
3d- different weird animation
3e- weird version of healing pokemon
3f- teleport
 
daniilS

daniilS

busy trying to do stuff not done yet
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Alright, it's done!

Code: 
Type 01 at 080A0524, 080A064E and 080A0656 for the new HP check.
Type 02 E0 at 080A04CE to prevent friendship reducing.
Type 6B 02 at 081A8E04 to terminate the whiteout script.
Finally, insert FD0200E7E9E6EADDEAD9D800E8DCD900E4E3DDE7E3E2DDE2DBADFECEDCD900E4E3DDE7E3E200DAD5D8D9D800D5EBD5EDABFB somewhere in your ROM (or any other custom message using [buffer1]) and place a pointer to where you inserted it at 080A05E4.

That's it!
 
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Touched

Touched

Resident ASMAGICIAN
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So, I looked into adding more field moves. Turns out there are four (three in Emerald) tables that need to be expanded and repointed.

Code: 
BPEE

08615D7E: Moves that can be field moves, terminated by 0xE
08615D9C: Field moves routine list. Pointer, then a word value. Set to D for a normal field move
08615C08: Pointer pairs. First pointer is text, second is routine. Always 081B5471 for field moves
081B344E: Sentinel value for 08615D7E (currently 0xC Guillotine)

Same structure in FireRed
BPRE

0845A76E: Moves that can be field moves, terminated by 0xC
0845A788: Routine list for field moves
0845A618: Menu List. (Pointer pairs). Second is always 081245A5 for field moves.
0845A37C: Descriptions for field moves
08122A3C: Sentinel value for the table at 0845A76E (currently 0xE - Swords Dance)

You can't use Guillotine as a field move in FireRed (move ID 0xC) and Swords Dance in Emerald (0xE), unless you change the sentinel. I don't know why its not zero, but I posted the offset of the compare to this value (sentinel value). If you want to use those moves you can just change that to something else.

Make sure you repoint ALL references to those.
 
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