OCDM stands for Online Course Database Manager​

Features*:

• import and export courses, both** 3DS and WiiU
• cryptofix saves (if the game marked your save as "corrupted")
  • Note: this will overwrite the LockoutID in your courses, not in the save file, so please be fair and don't reupload others' courses
• make/apply save snapshots (exports all files which are used in the save)
  • Note: please format your save data before restoring your save otherwise the game could mark your save as "corrupted", and this one is not cryptofixable
• browse SMMDB
  • download courses
  • discontinued

*: these features are in the latest build at the time of editing this post, so functionality in the public build could differ
**: due to differences in the 3DS and the WiiU version, importing a converted course file on a foreign platform could crash the game on loading the course

Spoiler: Video

Spoiler: Screenshots (development history)

Spoiler: Totally unrelated stuff

• Lua stuff (Pastebin)

[Download] (not supported anymore)​

 

[Zhongtiao1]

It was because I wanted to play and exchange course with friends. My friend does not handle the FBI very well.

What I mean is, we don't know yet how to add courses to other people's super mario maker.

 

[duffmmann]

So is this ever going to truly have the online course database manager? Now more than ever this should be continued in development. With the recent banwaves, the bulk of Super Mario Maker 3DS outside of the designing levels aspect, has become unplayable (100 Mario Challenge). That right there sucks, but at least with a working OCDM, we'd be able to download all the levels we want into Mario Maker 3DS and play them regardless if we've been banned.

 

[Sono]

So is this ever going to truly have the online course database manager? Now more than ever this should be continued in development. With the recent banwaves, the bulk of Super Mario Maker 3DS outside of the designing levels aspect, has become unplayable (100 Mario Challenge). That right there sucks, but at least with a working OCDM, we'd be able to download all the levels we want into Mario Maker 3DS and play them regardless if we've been banned.

there are 3 reasons I stopped development:

1) I can't find where and how the first 4 bytes in the files are calculated
2) I lost motivation because
3) there's an alternative

so ye... I might even ask for a thread lock soon

 

[Oschara]

there are 3 reasons I stopped development:

1) I can't find where and how the first 4 bytes in the files are calculated
2) I lost motivation because
3) there's an alternative

so ye... I might even ask for a thread lock soon

No worries Marcus! Keep up the good work with all the other things you have on your plate!

 

[Giodude]

Alternative?

 

[duffmmann]

there are 3 reasons I stopped development:

1) I can't find where and how the first 4 bytes in the files are calculated
2) I lost motivation because
3) there's an alternative

so ye... I might even ask for a thread lock soon

What's the alternative?

 

[Sono]

Alternative?

What's the alternative?

SMMOCM

 

[Giodude]

SMMOCM

"Latest commit by tesnos 5 months ago" i think it's more dead than this one.

 

[Alpuy]

there are 3 reasons I stopped development:

1) I can't find where and how the first 4 bytes in the files are calculated
2) I lost motivation because
3) there's an alternative

so ye... I might even ask for a thread lock soon

Can the check of those bytes be bypassed by modifying the game code?

 

[Sono]

Can the check of those bytes be bypassed by modifying the game code?

if you read back a bit I have mentioned how spagetti the game code is... it's just...

 

[Zhongtiao1]

SMMOCM

It seems to have the right idea, but it doesn't look like it does anything...

 

[Giodude]

It seems to have the right idea, but it doesn't look like it does anything...

"Latest commit by tesnos 5 months ago"

 

[Zhongtiao1]

Whenever you try and add a server, nothing happens

--------------------- MERGED ---------------------------

"Latest commit by tesnos 5 months ago"

Yeah, but sometimes code still functions even if it hasn't been touched in a while

 

[Pakhitew-Island]

I just hope someone figures it out one day, Eventually when the WiiU servers go down, any potential homebrew apps will be the only way to share levels online

 

[Zhongtiao1]

Just something interesting I've found: in all course220 files, offset 000 blocks 04 through 06 are always 04 1C 00. But in the course files, it is changed to 04 30 04. I think this is just an identifier saying that this file contains a level.

 

[Zhongtiao1]

in offset 010 block 09 through offset 020 block 00 in the course files (not course220) are always C0 10 00 00 00 00 00 0B.

Also, as long as the levels were created on your device, offset 020 blocks 0C through 0F are the same on your levels.

--------------------- MERGED ---------------------------

As long as it is not a Wii U course, offset 0D0 blocks 09 through 0B are always the same. 52 48 50 or RHP

 

[Tarnadas]

I created a GitHub repo with Protobuf files to import/export courses from/to WiiU/3DS: https://github.com/Tarnadas/smm-protobuf

If we follow the same serialization standard, we can easily convert from Wii U to 3DS and vice versa and Protobuf suits very well. I will soon update cemu-smm, so that it will be able to serialize Wii U SMM courses

 

[Sono]

@Zhongtiao1 thanks for bringing up the interest on course220! it seems like offset 0x2C in course220 is the mirriored copy of 0x2268 in Progress of which I know is the savefile -> slot# binding array. it's *really* weird why this is happening

I created a GitHub repo with Protobuf files to import/export courses from/to WiiU/3DS: https://github.com/Tarnadas/smm-protobuf

If we follow the same serialization standard, we can easily convert from Wii U to 3DS and vice versa and Protobuf suits very well. I will soon update cemu-smm, so that it will be able to serialize Wii U SMM courses

sadly I don't know of Google Protobufs, but once I find the file format descriptor file I'll post it so you can make it more accurate

 

[Zhongtiao1]

@Zhongtiao1 thanks for bringing up the interest on course220! it seems like offset 0x2C in course220 is the mirriored copy of 0x2268 in Progress of which I know is the savefile -> slot# binding array. it's *really* weird why this is happening

No problem It could be that it is there as a backup in case the game fails, or it reads for digital copies from course220 since there is no cartridge.

 

[Sono]

No problem It could be that it is there as a backup in case the game fails, or it reads for digital copies from course220 since there is no cartridge.

Now that you mention cartridges... I guess it's another leftover (*sigh*) code before they decided that you won't be able to use the cartridge on an other 3DS, because it's an exact mirror of a data block found in the Progress file

also, lol at placeholder text

Spoiler: lol