Basic Questions and Answers Thread

(I had a misconception that Sonic 1 was like S2, where the mappings for the title cards included the palette stuff)

one way you could do it is by making everything on Line 1 instead of Line 0

Code:

loc_C5CA:
        move.b    d0,obFrame(a1)
        move.l    #Map_Got,obMap(a1)
        move.w    #make_art_tile(ArtTile_Title_Card,1,1),obGfx(a1) ; changed from 0,1 to 1,1

However, that will mean that all of the art needs to work on Line 1, looking at what you have though, it may be fine, especially if you are clever about the art for the title cards and end of act results (Currently, I only see 2 things that need to really be on Line 0, but those could be made grey instead of blue)

(I hoped to find a way to just do the text bit, but I'm not sure how I would)

 

It worked! Thank You!

 

...yeah it does, though? It's the 2nd to last value in "spritePiece".

Code:

spritePiece macro xpos,ypos,width,height,tile,xflip,yflip,pal,pri

 

The mappings for those don't use spritePiece

 

Well, in that case, the palette line is in the tile ID, which is formatted as such in binary:

PCCV HTTT TTTT TTTT

• P = Priority flag
• C = Palette line
• V = Vertical flip
• H = Horizontal flip
• T = Tile ID

If you are using the 2022 Hivebrain disassembly, then you are meant to add "pal2", "pal3", or "pal4" to the end of the "piece" macro (you can see it in the HUD mappings, for instance).

 

(Side Note, I hack Sonic 2 so much more than Sonic 1)

Code:

; ---------------------------------------------------------------------------
; Sprite mappings - "SONIC HAS PASSED" title card
; ---------------------------------------------------------------------------
Map_Got:    dc.w M_Got_SonicHas-Map_Got
        dc.w M_Got_Passed-Map_Got
        dc.w M_Got_Score-Map_Got
        dc.w M_Got_TBonus-Map_Got
        dc.w M_Got_RBonus-Map_Got
        dc.w M_Card_Oval-Map_Got
        dc.w M_Card_Act1-Map_Got
        dc.w M_Card_Act2-Map_Got
        dc.w M_Card_Act3-Map_Got
M_Got_SonicHas:    dc.b 8            ; SONIC HAS
        dc.b $F8, 5, 0,    $3E, $B8
        dc.b $F8, 5, 0,    $32, $C8
        dc.b $F8, 5, 0,    $2E, $D8
        dc.b $F8, 1, 0,    $20, $E8
        dc.b $F8, 5, 0,    8, $F0
        dc.b $F8, 5, 0,    $1C, $10
        dc.b $F8, 5, 0,    0, $20
        dc.b $F8, 5, 0,    $3E, $30
M_Got_Passed:    dc.b 6            ; PASSED
        dc.b $F8, 5, 0,    $36, $D0
        dc.b $F8, 5, 0,    0, $E0
        dc.b $F8, 5, 0,    $3E, $F0
        dc.b $F8, 5, 0,    $3E, 0
        dc.b $F8, 5, 0,    $10, $10
        dc.b $F8, 5, 0,    $C, $20
M_Got_Score:    dc.b 6            ; SCORE
        dc.b $F8, $D, 1, $4A, $B0
        dc.b $F8, 1, 1,    $62, $D0
        dc.b $F8, 9, 1,    $64, $18
        dc.b $F8, $D, 1, $6A, $30
        dc.b $F7, 4, 0,    $6E, $CD
        dc.b $FF, 4, $18, $6E, $CD
M_Got_TBonus:    dc.b 7            ; TIME BONUS
        dc.b $F8, $D, 1, $5A, $B0
        dc.b $F8, $D, 0, $66, $D9
        dc.b $F8, 1, 1,    $4A, $F9
        dc.b $F7, 4, 0,    $6E, $F6
        dc.b $FF, 4, $18, $6E, $F6
        dc.b $F8, $D, $FF, $F0,    $28
        dc.b $F8, 1, 1,    $70, $48
M_Got_RBonus:    dc.b 7            ; RING BONUS
        dc.b $F8, $D, 1, $52, $B0
        dc.b $F8, $D, 0, $66, $D9
        dc.b $F8, 1, 1,    $4A, $F9
        dc.b $F7, 4, 0,    $6E, $F6
        dc.b $FF, 4, $18, $6E, $F6
        dc.b $F8, $D, $FF, $F8,    $28
        dc.b $F8, 1, 1,    $70, $48
        even

 

The third and fourth values for each sprite piece are the tile offset and flags split into separate bytes. If you want a piece to be offset by 1 palette line, add $20 to the third value.

For example, this line

Code:

        dc.b $F8, 5, 0, $3E, $B8

becomes

Code:

        dc.b $F8, 5, $20, $3E, $B8

And this line, whose tile offset is -8 (yes, this is intended, it goes back 8 tiles instead of forwards)

Code:

        dc.b $F8, $D, $FF, $F8, $28

becomes (overflows past 0)

Code:

        dc.b $F8, $D, $1F, $F8, $28

To offset by 2 palette lines, add $40, to offset by 3 palette lines, add $60.

 

Thanks for the clarification.

 

Thank you.

 

Change the Got_Map's palette to the second one. If you are using MapMacros it's as simple as setting the penultimate value in the entries related to the SCORE, RING BONUS and TIME BONUS to one
Eggman can't be saved so much. Grab the Sonic 2 or 3 sprite.

 

Quick question and I know this sounds dumb, but, how would you check to see if Sonic is colliding with another specific object? I'm assuming it would be to check for a specific touch response from the object and then have that branch to its own routine.

 

Hello, I am trying to port a few songs from S3K to Sonic 1, They all use UVB so i cant port them, Here is the list of songs i want to port:
Angel Island Act 1
Angel Island Act 2
Hydrocity Act 1
Hydrocity Act 2
Act Clear
Continue (maybe)
Menu
By the way, I am using SMPSConv

 

I have ported Angel Island Act 2, s3 Act clear, and the s3 continue theme to my romhack and I made a tutorial for it in the mini tutorial thread

 

Ok im going to try that

 

did it work?

 

it sound weird i used it in s1fixed with flamedriver, i am using angel island act 2

 

send me the editied disasm so i can see

 

I'm new to this, so this may be very simple, but I'm using SonED2 and whenever I assemble the ROM, only changes I make to the level layout are saved while any objects I remove or add are not. How can I fix this?

 

Are you using the currect revision files? When i first started romhacking I acidentlly kept clicking on the wrong revision file for soned2 all the time although now I use SonLVL.

 

I tried using a newer revision just now, and I could add objects but now everything except objects gets erased from the level after assembling