Got a question or two for S2F and S3+K

1) In Sonic 2 Final: I would like to know on how to change the paths for the tube system for CPZ. I have already changed the tiles for my path but now I need to change the coding to suit. How do I do that?


2) In S3+K: I cannot remember where the offset is to change the underwater countdown timer. I would like to know where it is.


I did not catch any of the answers above on any of the hacking guides (especially on Sonic Retro's guides).


Your help will be greatly appreciated.

 

The paths can be done by ASM I guessing, otherwise I have no idea.


As for the water thing, does Nemesis's guide say anything about it?

 

I did not see anything in anything in the Nemesis guides about the underwater countdown timer, since Nemesis mostly deals with compressed graphics (unless I have missed something) .

 

Well, if you DO find the address for the underwater countdown timer, it's a simple byte to change. Did you try looking up the address for it used in S1/S2? It's more than likely going to be the same.

 

According to Stealth's Sonic 3k notes (the ones that came with his Sonic & Knuckles disassembly), it's byte 2C of the SST.


I managed to find the locations for the initial setting of this byte (10B98 for Sonic, 16548 for Knuckles and 1378A for Tails). However (and this is weird), I can't find the code which determines what this counter is set to when the character enters/exits the water, so without this, the above values are useless. I did a binary search for both

Code:

move.b	#$1E,$2C(a0)

which yielded 11 results (three of which were the initialization bytes for characters), and

Code:

move.b	#$1E,($FFFFB02C).w

which yielded 4 results, but none of these 15 seem to have any effect upon the resetting of the countdown when the character enters/exits water.


EDIT: I'm an idiot - I forgot to search for $2C(a1). The location for all characters is 186BE.