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Help with Pokémon Sprites

Peterluul

Peterluul

14
Posts
7
Years
  • Age 34
  • Seen Jul 23, 2018
Hello,

for the last days I have been struggling with a problem regarding the Sprites of the Pokémon.
I have been editing the normal Pokémon in Fire Red, changing their Stats, Attaks and Sprites.
I used the Gen 3 Hacking Suite for that.
It all worked for editing Bulbasaur to Squirtle. Then I editied Wartotle, I also changed its sprites like i did before with the other ones. And proceeded to do that to the next two ones.
But now when I go back to the edited Wartortle, Blastoise and Caterpie this error appears:

"Images failed to decompress. Aborting sprite load."

It all workes with the other ones, I also edited Metapod, that is after Caterpie and everything works there.
But I have no idea what is wrong with these three, everything else I edited on them is saved. But the sprites dont seem to work.
Does anyone know how I can fix this error?
 
DrFuji

DrFuji

[I]Heiki Hecchara‌‌[/I]
1,691
Posts
14
Years
Peterluul said:
In APSE, if you mean this programm, appears this error:

Data is not LZ77 compressed!

What does that mean?
Click to expand...

It means the new sprites that you inserted weren't properly compressed and are now unreadable by image editing programs. Whether it was because they were partially overwriten or the the tool screwed I have no idea. I would also recommend using Advanced Sprite Editor as I've never experienced problems when inserting new sprites with it.

As for how to fix your ROM so you can edit Wartortle to Caterpie again you have two choices. Either you can try it again with a back up ROM (You should be backing up frequently) or you can change the pointers to the corrupted images back to the original sprites and try inserting again. This will leave the corrupted sprites in the ROM, taking up potentially usable free space so I'd advise just starting over if you've got a back up from not too long ago. Nevertheless, if you want to continue using you corrupted ROM make these edits in a HEX editor to repoint back to the original sprites:

Code: 
0x2350EC: D4 4A D3 08 00 08 08 00 38 56 D3 08 00 08 09 00 C0 63 D3 08
0x23658C: A8 4E D3 08 00 08 08 00 64 5B D3 08 00 08 09 00 40 66 D3 08
0x23735C: 80 4E D3 08 08 00 00 00 3C 5B D3 08 09 00 00 00 18 66 D3 08
0x23810C: F0 51 D3 08 FC 01 00 00 78 5F D3 08 FD 01 00 00 C8 68 D3 08

The first two edits will restore the frontsprite and backsprite while the second two will give them their original regular and shiny colour palettes back.
 
Peterluul

Peterluul

14
Posts
7
Years
  • Age 34
  • Seen Jul 23, 2018
DrFuji said:
It means the new sprites that you inserted weren't properly compressed and are now unreadable by image editing programs. Whether it was because they were partially overwriten or the the tool screwed I have no idea. I would also recommend using Advanced Sprite Editor as I've never experienced problems when inserting new sprites with it.

As for how to fix your ROM so you can edit Wartortle to Caterpie again you have two choices. Either you can try it again with a back up ROM (You should be backing up frequently) or you can change the pointers to the corrupted images back to the original sprites and try inserting again. This will leave the corrupted sprites in the ROM, taking up potentially usable free space so I'd advise just starting over if you've got a back up from not too long ago. Nevertheless, if you want to continue using you corrupted ROM make these edits in a HEX editor to repoint back to the original sprites:

Code: 
0x2350EC: D4 4A D3 08 00 08 08 00 38 56 D3 08 00 08 09 00 C0 63 D3 08
0x23658C: A8 4E D3 08 00 08 08 00 64 5B D3 08 00 08 09 00 40 66 D3 08
0x23735C: 80 4E D3 08 08 00 00 00 3C 5B D3 08 09 00 00 00 18 66 D3 08
0x23810C: F0 51 D3 08 FC 01 00 00 78 5F D3 08 FD 01 00 00 C8 68 D3 08

The first two edits will restore the frontsprite and backsprite while the second two will give them their original regular and shiny colour palettes back.
Click to expand...

Thank you very much! Its working again!
 
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