[Polygon Jim]

Attempted to put the minecart stage back into the final Wii game, with weird results.


Very basic stuff done, I'll post updates as I learn more about the formats.



AMB

CODE

0x00 dword = #AMB

0x04 to 0x0F = unknown, seems to be part of the header.

0x10 dword = number of files

0x14 dword = unknown

0x1C dword = address to the filenames

0x20 dword = address to beginning of the first file

0x24 dword = size of file

Followed by FF FF FF FF 00 00 00 00, then new file start address, and file size, check the dword at 0x10 for amount of files.

There is some stuff I'm missing in my format spec, but it works to extract most files.



G_ZONE*/MAP/ZONE*_ATTR.AMB is the collision data, and G_ZONE*/MAP/ZONE**_MAP.AMB is the level layout. There's a decent bit of research into the layout files, but that's not my work so you'll have to wait until the person working on that posts the info.

[Sparks]

Sonic 4 Hacking already, awesome.

Seems you tried to put back the original level map too?

[Blue Blood]

That's pretty excellent. Now we just need to see the minecart in every other level.

[Slingerland]

I laughed the whole time while watching this video.

[Mr. Mash]

Wow, hacking already. Impressive. Though you know what's probably on the tip of everyone's tongue Classic physics hack/fix please
So does the minecart stage pretty much play itself then?

This post has been edited by Mr. Mash: 12 October 2010 - 06:28 PM

[Xkeeper]

Haha, what?

I think my head just exploded.


And hey, you know what you should do? Start putting this kind of crap on the wiki.

[Solaris Paradox]

Awesomesauce! I didn't know development on Atomic Sonic 2 was so far along!

[sonicblur]

There are some (useless, but important) omissions from your AMB spec. I use the 32-bit value at 0x04 to determine endian-ness.

But anyway...
0x14 - I believe this is the length of filenames in the filename table. Unconfirmed, because it's always 0x20.
0x18 - Size of header
0x1C - This can be 0 for files without a filename table. They do exist. Likewise, there can be files without names in the filename table.

In the file entries. 0x08 is not always FFFFF. I located a few files where it was 0B. I believe it to be an attribute related to the file.

[MarkoMan]

Polygon Jim, are you trying to phix the physics already? That would be one hell of a proof of concept.

[The Game Collector]

Check it out, the minecart parts are still in the PS3 version of the game.

[Azu]

This pretty awesome. However, I must ask, how did you unpack the WAD file?

[Rika Chou]

This pretty awesome. However, I must ask, how did you unpack the WAD file?

Google for "wad unpacker"?

[Trunks]

It's not that easy, Rika Chou. We're talking like six levels of compression and whatnot. I hope someone makes an automated exporter/importer.

[GHNeko]

Looking forward to Sonic 4.1 unofficial fan patch.

Or Super Sonic 4 Turbo.

Or Super Sonic 4 Champion Ship Turbo+.

[Cooljerk]

Lol this is simultaneously hilarious and impressive. I tip my hat, Jim.