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Topic: Is this Road Rash hack possible? (Read 2 times)
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fshea31
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« on: October 25, 2008, 10:52:32 pm » |
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I would like to do two things to the Genesis version of Road Rash for use on the PS2.
First, I would like to swap the A and C buttons to make it easier to punch.
Second, I would like to change the color of the main road. Due to a glitch, it's white when used with the PGEN emulator when it should be dark gray, so maybe changing it to some other color will get it to be the correct color on screen.
I tried using a tile editor, but I can't for the life of me figure out how it works.
Any help would be greatly appreciated. Thanks.
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RedComet
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« Reply #1 on: October 25, 2008, 11:15:42 pm » |
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Yeah, it's possible. It'll require some ASM hacking though.
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sb iq
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« Reply #2 on: October 26, 2008, 04:41:22 am » |
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What tile editor are you using?
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fshea31
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« Reply #3 on: October 26, 2008, 05:07:31 am » |
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I tried Tile Molester and Tile Layer Pro.
But I had no idea what I was doing. It seemed like a giant impossible puzzle.
Then I took RedComet's advice and downloaded the Sega Assembler. I got the code to a text file so I can check it out. But again, I don't know what I'm looking at. I was hoping that I could figure out what code refers to the A and C buttons, and do Find/Replace to swap them. Obviously it's not that simple.
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InVerse
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« Reply #4 on: October 26, 2008, 02:01:40 pm » |
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If you're using an emulator, can't you just switch the controller mapping for the A & C buttons? Sure, you'd have to switch it back for other games, but that isn't particularly time consuming.
As for changing the color of the road, if the color is already used with the sprite, you can swap colors with a tile editor but otherwise you'd have to hack the palette using a hex editor.
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snesmaster40
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« Reply #5 on: October 26, 2008, 02:03:55 pm » |
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The road looks just fine in Fusion, must be PGen
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fshea31
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« Reply #6 on: October 26, 2008, 03:06:00 pm » |
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PGEN doesn't have any button configuration options, so I can't do that. To hex edit, do you just open the rom in a hex editor, or do I have to break it down to hack the palette? I didn't see any color values when I opened the whole rom. If changing the Genesis buttons is similar to this: http://www.romhacking.net/forum/index.php/topic,7196.0.htmlI might be able to eventually figure it out if I know the Genesis register. |
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fshea31
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« Reply #7 on: October 27, 2008, 12:38:47 am » |
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Right now I'm trying to fix the road color, and here's something that I found using the Gens emulator:
Under the Debug-->VDP - Registers, I see the BG Color (which is the road) is at register #07, with a value of 0x3F. Will this help me at all, such as by corresponding to anything in the ROM when opened with a hex editor?
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RedComet
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« Reply #8 on: October 27, 2008, 02:26:41 am » |
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Don't double post. Edit your previous post instead.
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