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Ask anything about SMW Hacking - 2019 Edition

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Nice to know! I thought maybe you can change it per default. Ill will save that for later. Thanks a lot
How can I slow down sprites falling down? If I use Water, where Mario can swim through, they just fall through it. I also tried lava or change the behavior to interact with sprites, but nothing happens.

Thanks in advance!


Make sure you have one of the sprite buoyancy settings checked under #lm{owspr}.

Professional frame-by-frame time wizard. YouTube - Twitter - SMW Glitch List - SMW Randomizer
Originally posted by Thomas
Make sure you have one of the sprite buoyancy settings checked under #lm{owspr}.


Weird solution but it works :D Nice! What exactly is changed? Because why does it change the way the Sprites interact with the water?
Because having sprites check for water interaction is costly (i.e. can cause slowdown), so SMW made it toggleable and only enabled it in levels where it's necessary (that is, if there's any water or [castle] lava).
Hello im new to LM and SMW hacking seems something fun and something to do in my freetime but i cant load anything up. When i try to it says The ROM either has the wrong game title, or is in the wrong format. Im not very smart when it comes to computers or stuff like this so i was wondering if anyone could help.
Are you just trying to play the hacks from the hack section after downloading? If you are they are bps patches and much be patched to a SMW rom. This tutorial explains them
im trying to make a hack but when i try to load a level it dosent allow me to
Lunar Magic only accepts a clean, US, headered, v1.0 SMW ROM. Try running it through this.
i tried but it still says i cant... idk why tho
A clean ROM is usually (U) [!] and about 512KB in size - is that the case for you?
mine is (U) [!] but only 340KB is size
Yeah, you have no choice but to Google for a 512KB ROM then. ROMclean was supposed to clean it, anyway.
ight thanks tho
I want to turn a Sprite into a Tile because of how it looks.
How do I manage to do so?
For example I want to turn the Floating Skulls into 16x16 Tiles.
My idea is to copy that into the 8x8 tile editor and add a new tiles in the 16x16 editor.


You have the right idea, although the recommendation is to use YY-CHR to edit the 8x8 graphics rather than Lunar Magic's built-in 8x8 editor. Additionally, you'll want to apply the change as ExGFX; see here for additional details on how to use ExGFX as well.

Professional frame-by-frame time wizard. YouTube - Twitter - SMW Glitch List - SMW Randomizer
Just to be sure:

I figured out the Skullraft was in GFX04.
I deleted all of the graphics I havent needed and added it
as ExGFX81 ( Not inserted at the moment ).

Pressed the Yellow Mush with the Arrow and bypass with the Red Mush.
I chose BG2 to set the 81 ( Before it was 7F Skip file, which does not contain anything, right? )

Now I could drag it from the 8x8 Editor to the 16x16 and set a palette and such.

So far so good!
If I want to add another one, can I simply edit my ExGFX81 again, since their is still a lot of space left, or will that mess up things?
Originally posted by ChrillePan
If I want to add another one, can I simply edit my ExGFX81 again, since their is still a lot of space left, or will that mess up things?

If that space isn't used, you can freely use it.
One more problem... The ExGFX file always turned in to a 8kb file and cause trouble but I cant sense how to not do it? I just delete all the 8x8 tiles Id not need and save but now I have a 8kb file.

EDIT: I just used a "fresh" GFX file and copy/paste it and it work but still im curious why the file size changed to 8kb? I deletet everything I havent needed and moved the skullraft to the topleft
You're using yy-chr it seems and did not read the messages close enough. When saving you get one asking if you want to expand the size you want to say no to this popup.
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