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NSMB Level Format Documentation
Written by Treeki. Copyright 2007

BGDAT files:
10 bytes for each object.
A map:
2 = Tile type
2 = X
2 = Y
2 = Width
2 = Height
Each of these are encoded in 2 bytes.

Formula to convert 2 byte format to an integer:
((second byte * 256) + first byte)

Formula to convert integer to 2 byte format:
first byte = number mod 256
second byte = (number - (number mod 256)) / 256

All positions are in tiles, not in pixels. Each tile is 16x16 pixels.
Collisions are determined by the tile; you do not have to set them yourself.

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Normal level files:
-- To be updated as more is discovered --
Enemies are encoded in 12 bytes. I do not know how the area they start is delimited, though.

These values are encoded using the same 2 byte format described above:
0x74 = Time Limit
0x76 = Background Graphics Set
0x7C = Level Tileset Graphics Set (also, collision data)
0x82 = Background (Near Layer) Graphics Set
0xAA = Background Tile Layout (seems to also change some tiles like question block and brick to their appropiate level's palette)
0xAC = Background Palette

These I haven't tested, but am fairly sure of:
0xC0 = Level Tileset Palette
0xD2 = Background (Near Layer) Tile Layout
0xD4 = Background (Near Layer) Palette

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Posted by Tanks

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Your object tutorial works fine. I don't see why you haven't implemented it yet though... I'm currently making an object list... it will take a while but I've found things like possible beta collision blocks, the flag, and even check points. I even found a collision block of doom that kills you if you run into it . (It will only kill ou once and then it disappears...) I have yet to go farther but for now all I can do is keeping moving at a very slow pace...

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Posted by Reini

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Posted by Treeki

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Nah, I've decided to change it back to NSMB Editor 2.0.

Editor is almost done! Everything works, just need to design, code and test the Level Header dialog.

Here's a full list of stuff that will be changeable in this version:
+ Time limit
+ Mario's start position
+ Level tileset (GFX set, palette)
+ Level background (GFX set, palette, tile layout)
+ Parallax background (GFX set, palette, tile layout)

I do want to add more when I find the data.

Also, I'll be making a new thread for the new editor (I think this one's run its course) so keep an eye out for that when it's released!

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Will this work on any version of NSMB?'Cause when I tried one of them with your
editor,an error has been occured.

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Posted by Tanks

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Well I know how much work is needed to make a thurough object list since I've been tediously working... but I'll give it a try if I could get sonic's help.

I've just found out how to change Koopa Troopa colors too. I'll toss that in along with my documentation. I'm a bit hesitant to try this on paratroopas or even goombas but for the sake of documentation it shall be done!

As for the editor a name... I was thinking NSLM (New Super Lunar Magic) but you'd probably get in a heap of trouble for that... so how about NSME ('Nother Super Mario Editor)

PS 'nother as in another

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Posted by GuyPerfect

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He'll settle on OldHack. Tonight, a vision will come to him in a dream as to why it is crucial to use that name.

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