Reuben - DD's SMB3 Editor Released!

So it's been a while since we've heard from DD, but he popped in here some days ago and released what he had completed.

This is the official thread to talk about the editor, its bugs, further development, and workarounds regarding the special Reuben ROM needed to use this.

The Editor - This editor is open source! That means further development can continue, if someone is so inclined to do so. It's project based, which means everything is written to the ROM only when you're ready to test it out. Everything is saved into project files. Coded in C#.

Download (Source)

The ROM

<KP9000> I can't link the SMB3 ROM that DD uses for his Reuben editor
<Kawa> With the nature of that ROM, I don't think a patch would solve any problems.
<Kawa> I therefore move to invoke the Sonic Rule.
<Kawa> "IPS patch would contain too much of the original shifted
       around or something like that, so just post the goddamn ROM."
<Kawa> Sonic hacking is done on the ASM level, with a disassembly
       and split-out graphics and other such data, so you get shifting.

This is the special ROM needed for the editor to write to. It contains the new level loading code, as well as being expanded to use the MMC5 mapper. It uses 768kB of PRG and 512kB of CHR. There are some things that this ROM doesn't have because of the change of level format. The data may still be there, or it might need to be re-created. I'm leaning toward the latter.

N-card doesn't work. (Sprite makes you enter the pointer it's sitting on)
No pre-ship castle scene
No post-ship castle scene
No "Letter from Princess" scene
No "Anchor's Away" scene
Mushroom Houses need to be set up manually
Spade Bonus doesn't work
Hammer Bros, Special Mushroom House, Coin Ship untested
No lock support from editor. Manual only. Untested.
Level sprites (pihrana, W8 trap, etc) untested

There are some known bugs.

- Sometimes, when you enter doors, the level data on the screen will appear to split in half vertically and reverse its left and right positions. Sometimes it affects where you end up, but usually it's just a visual bug.
- When you press B on the map screen to bring up your items, and then press B again to return, the game uses the default blue/white/black palette rather than the one you specified in the editor.
- As you advance to the next world (which will be buggy because the lack of level data for the castle and princess letter screens, but still works) you will be placed on the spot you specified for that world. But if you don't complete the first level on that same try, the game will place you on a spot on the map that wasn't the same as the first spot you specified, unless you chose a spot on the map that is the same as the game's default start space.
- If you get a game over at any time, the game will place you on the original game's start space for the world you're on. This will likely cause you to not be able to move at all.

There are probably more bugs, but I can't remember them.

Download ROM

____________________