SMB1 graphics editing

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Main - ROM Hacking - SMB1 graphics editing

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origamimaster7

Posted on 08-21-14 11:25 PM

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Hello I was working on a SMB1 rom hack and was editing palettes. And trying to make a star/space background like in VS. Yellow Devil, but I could not figure out how to make the stars change colors like the ? blocks in the game.

Any help getting the star to change from dark blue to blue to light blue would be very appreciated. Thanks.

ShaneM

Posted on 08-31-14 10:24 PM (rev. 5 of 08-31-14 11:17 PM)

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Posted by origamimaster7
Hello I was working on a SMB1 rom hack and was editing palettes. And trying to make a star/space background like in VS. Yellow Devil, but I could not figure out how to make the stars change colors like the ? blocks in the game.

Any help getting the star to change from dark blue to blue to light blue would be very appreciated. Thanks.

The first thing that I'd recommend doing is grab the SMB1 disassembly, by doppleganger, from RHDN. The next thing is, look at "Palette3_MTiles:" within the disassembly. All those tiles make use of the changing color palettes. You'd need to add sprite tiles to the game, as well as define it within that data spot. Then, look up "SolidMTileUpperExt:" and "ClimbMTileUpperExt:", these are what defines an object's attributes. Whether it is a solid (like a block) or climbing (like a vine). I would attribute the new star object after the "axe" or $C7. That way, it is defined without collision, if that's what you want.

My advice would be to convert this game to MMC3 since it is NROM. Use infidelity's work, since it is already done. Next, import the routine from his notes into the disassembly and create a routine and go from there. (Because assembling with a make.bat is twice as easy as using a hex editor.) Good luck!

EDIT: One last thing, the data at "ColorRotatePalette:" defines what colors will be rotating. So define your different shades of blue from there.

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Main - ROM Hacking - SMB1 graphics editing

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