Some changes and fixes for Sonic 2

E-122-Psi · Dec 1, 2024

nineko said:

E-122-Psi said:

All three activation checks are separate and can be given different timer settings ($3C3C represents the frames and seconds, 60). You could even add a handicap for one player, giving Sonic, say $1E1E (30 seconds) and Tails $5A5A (90 seconds). It's quite flexible, but remember it can only go up to double digits, so the timer won't display correctly past 99 seconds ($6363).
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Premise: I never hacked Sonic 2, and I wouldn't even know where to start to check this, but, if what you're saying is true, and that value holds both the seconds and the frames, you shouldn't change both of its bytes, otherwise you'd get things such as 30 seconds and 30 frames, or 90 seconds and 90 frames. Again, this is only a guess which might be entirely wrong (in which case I'll gladly blank out my post later), but I think you should only alter the first byte, while keeping the second byte as 3C.
I like how this is made even more confusing by the fact that the "second" byte isn't the byte which represents the seconds.
Coincidentally, giving 60 seconds and 60 frames would effectively give you 61 seconds, this is probably done as a placebo effect to make the countdown feel less confusing, many people freak out when they think that a countdown robbed them of a second, without realising that that second actually takes place during 00:whatever.
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Yeah admitedly this is the catch I see if it is representing seconds. The reason I edited both is because the second byte didn't seem to remotely affect the length of time for each number. If anyone is able to truly pinpoint check this theory and debunk this however, I'll revise the tutorial.

EDIT: As it turns out, the seconds byte IS being affected, but only for the first frame. Then coding within the HUD routine resets it to its default. (Makes sense for the NTSC settings at least).

In that case, for accuracy for that ONE frame at least, it should be set consistently to $3C.

Once again, thanx to MoDule for clarifying and nineko for pointing this out. I'll edit the guide accordingly.

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Some changes and fixes for Sonic 2

E-122-Psi

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