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YI Editor - Golden Egg beta v0.002

Hello, and welcome. I'm going to participate in C3, finally.

My stuff is for YI not SMW, however, this, making an editor for this game, has been my big project; it originally started a few years ago, and it went through 3 times remake in C++ seeking better user interface, and after one year break, and several months of coding C#, I present you, although probably only a few YI hackers out there are interested, this editor at last.

This still lacks some function the C++ version had, but this release is still a beta version. I'd would like to add features even little by little, hopefully. Although I said a "beta", this should have enough basic function to edit levels: editing objects and sprites, and screen exits, and the level header.

Being hurry so that I can release this in C3, I couldn't make a decent readme or a help file, but you could soon get how to use. If you have any questions or error report, please let me know.

Before people ask or suggest something, I'm going to list what I'd like to create:
- BG2/BG3 viewer
- custom palette editor, including custom animated palette and custom gradient.
- function to scan illegal item placement. In other words, this'll warn if you placed items in the same vertical line in the same screen.
- entrance editor
- midway entrance editor
(these were once made in the C++ version.)

and 'hopefully'
- sprites preview with in-game graphics
- message editor, once I disassembled the code
- better error-handling (sorry)
- maybe some others

If you're interested, here are a few screen shots.
screenshot1
screenshot2
screenshot3

and the link to the editor : download
This requires .NET Framework 4.0 to work
And Yoshi's Island (U) 1.0 is only supported.

I would like to thank Ersan for quick-debugging this editor because I've just finished this beta version, and he found some issues, which are now fixed.
Nice! One with graphical support too!!!
Cool! Finally I can hack Yoshi's Island! But now I have to dig around the internet for an American YI ROM in a .sfc format. #w{=|}
FINALLY!! I can begin YI hacking! Thanks a bunch Romi!

You made my day!
YouTube <-- Let's Plays and stuff.
^ Made by Tahixham
/me thinks he's dreaming
/me realises he's not actually dreaming at all

That's fantastic! I knew you were working on an editor, but I didn't expect you to release it! Seriously Romi, you are a God.Free counters!
Thank the heavens! I hated eggvine so much, once I can get a working smw2 rom I will be using this.
It's weird you have inclusive pronouns, but still only have the binary options for gender. Where is Non-Binary, Agender, etc? Not a gripe. Just curious lmao.
Hmmm, witht his editor I might start YI hacking.
Great work, I can definatly see an increase of YI hacking coming soon maybe....
I've been wanting to start hacking Yoshi's Island and this will make it much easier now.
Well done Romi!
Not work for me

He says that needs a .NET Framework named v4.0.30319

What should I do?
Romi, this is amazing. I'm sure many people will start hacking YI now. This is just so much better than eggvine. Major props to you.
Being able to actually see the graphics is awesome. <3
If I was a YI hacker, I'd be all over this. But yeah, awesome that this got released.
Good fucking bye.
Oh god, this is amazing! I'm going to go try it out right now!

Warning: Opinions expressed by Lexie or others in this post do not necessarily reflect the views, opinions, or position of Lexie himself on the matter(s) being discussed therein.


Yoshi's Island Disassembly C3 Thread
SPASM - LevelASM for Yoshi's Island!
Yoshi's Island Disassembly Data Dump Wiki
The tool requires .NET 4.0.

Like I told you on the IRC, I like the level editor a lot. I'm sure this editor will get various people into YI hacking.

Still, I wonder how you cracked that LC_LZ16 decompression code (seeing you can display gfx without errors). I tried to figure it out for days but I couldn't.

For people who think ExGFX would be cool: it'd require an insane level of compression, plus the 2 MB limit isn't a good thing either. Even if I don't know how YI works, I know how SNES (sort of) does {B)
My blog. I could post stuff now and then

My Assembly for the SNES tutorial (it's actually finished now!)
Thank you all for comments. :)

Now, I just realized that I forgot to write some important things...

You'll need .NET Framework 4.0 to run this program.
And the supported rom is only the U.S. version of Yoshi's Island, version 1.00.

Sorry..
Holy shit.
Originally posted by moltensnow
But now I have to dig around the internet for an American YI ROM in a .sfc format. #w{=|}


Just rename your old .smc to an .sfc file or in the ROM opening window select "all files". The result is the same (I guess).

Also, this is an awesome thing (and totally unexpected)! I got an urgent feeling to try out YI hacking right now, with this tool it looks super fun. Awesome job, Romi.
And (sort of) welcome back! :D
Oh wow. A Yoshi's Island editor where you can actually see what you are doing? I can definitely see this making SMW2 hacking quite a bit more popular; a big part of the reason why I never really got into it was because having to test your level after every other object placed got kind of tedious.
My YouTube channel
Get the official ASMT resource pack here!

I thought nearly everyone had .NET Framework 4.0.. =o
YouTube <-- Let's Plays and stuff.
^ Made by Tahixham
Originally posted by Romi
Thank you all for comments. :)

Now, I just realized that I forgot to write some important things...

You'll need .NET Framework 4.0 to run this program.
And the supported rom is only the U.S. version of Yoshi's Island, version 1.00.

Sorry..

Not everyone has it. Should I post a download link to the .NET Framework 4.0 for anyone who needs it?

I'm so excited that you finally released this!Free counters!