My Super Sonic porting help topic

Hello, I have ported super sonic as well as i can.But I've got some bugs.The main bug is when Super sonic is stopped the music keeps going.I have tried to fix this with no luck.I hope someone can help.


Cookie

 

Look at Sonic 2's coding.


Alternatively, perhaps some code from the invincibility routines might help with storing music and replaying it after Super Sonic reverts back to normal.

 

I have looked at the invincibility coding and tried a few things but didn't succeed.

 

You might wanna tell us what you tried to fix it.

 

Well I found this piece of coding (I think its from the "play songs on different acts" guide)




cmpi.b #$0,($FFFFFE11).w ; is this act 1?


bne.s Obj01_GetBgm2 ; if not, branch


lea (MusicList1).l,a1 ; load Music Playlist for Acts 1


bra.s Obj01_PlayMusic ; go to PlayMusic


Obj01_GetBgm2:


cmpi.b #$1,($FFFFFE11).w ; is this act 2?


bne.s Obj01_GetBgm3 ; if not, branch


lea (MusicList2).l,a1 ; load Music Playlist for Acts 2


bra.s Obj01_PlayMusic ; go to PlayMusic


Obj01_GetBgm3:


cmpi.b #$2,($FFFFFE11).w ; is this act 3?


bne.s Obj01_GetBgm4 ; if not, branch


lea (MusicList3).l,a1 ; load Music Playlist for Acts 3


bra.s Obj01_PlayMusic ; go to PlayMusic


Obj01_GetBgm4:


cmpi.b #$3,($FFFFFE11).w ; is this act 4?


bne.s Obj01_PlayMusic ; if not, branch


lea (MusicList4).l,a1 ; load Music Playlist for Acts 4


Obj01_PlayMusic:


move.b (a1,d0.w),d0


jsr (PlaySound).l ; play normal music



I Changed the labels (to avoid erorrs)added it to my revert to normal code but nothing changed.

 

what's in d0 before passing "move.b (a1,d0.w),d0"?

 

Well I have used sound e4. If that's not what you mean than I don't know

 

Sorry for the double post I have a new problem:


I Tried to make it so that when sonic is super it changes to super animations by doing this:



Sonic_Animate: ; XREF: Obj01_Control; et al
tst.b ($FFFFFE19).w ; is Sonic Super?


bne.s SAnim_Super ; if yes, branch


lea (SonicAniData).l,a1


SAnim_Super:


lea (SuperAniData).l,a1


SAnim_Cont:


moveq #0,d0


move.b $1C(a0),d0


cmp.b $1D(a0),d0 ; is animation set to restart?


beq.s SAnim_Do ; if not, branch


move.b d0,$1D(a0) ; set to "no restart"


move.b #0,$1B(a0) ; reset animation


move.b #0,$1E(a0) ; reset frame duration



It built fine, but in game...


Sonic goes through all his animations really fast. Does anyone know what the problem is??

 

You did a mistake in your code... If Sonic isn't super, SuperAniData will be loaded anyway, because command to load it follows command to load normal animation.


To fix it, you might add a branch to SAnim_Cont after "lea (SonicAniData).l,a1".


But it's better to do it a bit different:



Sonic_Animate: ; XREF: Obj01_Control; et al
lea (SonicAniData).l,a1


tst.b ($FFFFFE19).w ; is sonic super?


beq.s Sonic_AnimRestart ; if no, branch


lea (SuperSonicAniData).l,a1


Sonic_AnimRestart:


moveq #0,d0


move.b $1C(a0),d0


cmp.b $1D(a0),d0 ; is animation set to restart?


beq.s SAnim_Do ; if not, branch


move.b d0,$1D(a0) ; set to "no restart"


move.b #0,$1B(a0) ; reset animation


move.b #0,$1E(a0) ; reset frame duration



This code loads normal animation first, but if Sonic is super, super animation will be loaded.


As for the bug you have in game, it happens when LoadSonicDynPLC tries to load PLC for a mapping frame which doesn't exist. This may be problem with animations, to fix it, replace SAnim_Do2 with:



SAnim_Do2:
moveq #0,d1


move.b $1B(a0),d1 ; load current frame number


move.b 1(a1,d1.w),d0 ; read sprite number from script


;bmi.s SAnim_End_FF ; if animation is complete, branch


cmpi.b #$F0,d0 ;++


bcc.s SAnim_End_FF ;++if animation is complete, branch



Also, check out if you have all sprites for Super Sonic and animation scripts are correct.


And the last thing, if you want to have all Super Sonic animations, you'll have to port Super Sonic animation subroutines from Sonic 2.

You know, compiler can't check if code works correctly.

 

I found a code of the "music to normal" from when the invincibility time has spend and sonic becomes vulnerable again.

Code:

Obj01_PlayMusic:

		lea	(MusicList2).l,a1

		move.b	(a1,d0.w),d0

		jsr	(PlaySound).l; play normal music

Add those lines to the reverting back to normal code and i think it should work. Hope it helps =)