Actions

SCHG

Difference between revisions of "Chaotix"

From Sonic Retro

m (Reverted edits by Moosegeek (Talk); changed back to last version by 69.219.34.99)
(Severe cleanup + experimental "contributors" headline - pls don't remove)
Line 1: Line 1:
 
This is the [[Knuckles' Chaotix]] portion of the [[Sonic Community Hacking Guide]].
 
This is the [[Knuckles' Chaotix]] portion of the [[Sonic Community Hacking Guide]].
  
−
==About this Guide==
+
==Palette Locations==
−
 
+
===Genesis Format===
−
I'm Lostgame, and I'm obsessed with Chaotix. It simply has to be the greatest Sonic-related game I've ever played. And it's not just the amazing 32-bit graphics, with  real rotation and scaling, it's the original gameplay, the amazing music, and the general fun involved. So strap yourself in, and get ready for the most fun you've ever had hacking a Sonic game.
+
{| border="1" class="prettytable"
−
 
 
−
==MD Palettes==
 
−
 
 
−
One thing that shocked me, when I was looking through the ROM for palettes was that the standard levels actually only use the Genesis colors, as beautiful as they are! Well, so, as you most likely already know, if you're here, the format for most Genesis palettes is:
 
−
 
 
−
0B-GR
 
−
 
 
−
The first character, I dunno what it's for. If you put something there it's either ignored, or causes an error, depends on the game, and the level, whatever.
 
−
The second, third and fourth characters are the Blue, Green and Red values, accordingly.
 
−
 
 
−
Here is a list of the palettes that I know of in Chaotix
 
−
that use the Genesis palette format:
 
−
{| border="1"
 
 
! Palette Offset||Description
 
! Palette Offset||Description
 
|-
 
|-
−
|2b3CF0,40
+
|$0066C8
 +
|Credits - Flames
 +
|-
 +
|$006E18
 +
|Sound Test - Foreground
 +
|-
 +
|$006E98
 +
|Sound Test - Amy
 +
|-
 +
|$2B3CF0
 
|Amazing Arena - Morning / Day
 
|Amazing Arena - Morning / Day
 
|-
 
|-
−
|2b3D70,40
+
|$2B3D70
 
|Amazing Arena - Sunset / Night
 
|Amazing Arena - Sunset / Night
 
|-
 
|-
−
|2b3EF0,40
+
|$2B3EF0
 
|Techno Tower - Morning
 
|Techno Tower - Morning
 
|-
 
|-
−
|2b4070,40
+
|$2B4070
 
|Techno Tower - Day
 
|Techno Tower - Day
 
|-
 
|-
−
|2b41F0,40
+
|$2B41F0
 
|Techno Tower - Sunset
 
|Techno Tower - Sunset
 
|-
 
|-
−
|2b42F0,40
+
|$2B42F0
 
|Techno Tower - Night
 
|Techno Tower - Night
 
|-
 
|-
−
|2b4470,40
+
|$2B4470
 
|Marina Madness - Morning
 
|Marina Madness - Morning
 
|-
 
|-
−
|2b44F0,40
+
|$2B44F0
 
|Marina Madness - Day
 
|Marina Madness - Day
 
|-
 
|-
−
|2b4570,40
+
|$2B4570
 
|Marina Madness - Sunset
 
|Marina Madness - Sunset
 
|-
 
|-
−
|2b45F0,40
+
|$2B45F0
 
|Marina Madness - Night
 
|Marina Madness - Night
 
|-
 
|-
−
|2b4670,40
+
|$2B4670
 
|Introduction - Morning
 
|Introduction - Morning
 
|-
 
|-
−
|2b46F0,40
+
|$2B46F0
 
|Introduction - Day
 
|Introduction - Day
 
|-
 
|-
−
|2b4770,40
+
|$2B4770
 
|Introduction - Sunset
 
|Introduction - Sunset
 
|-
 
|-
−
|2b47F0,40
+
|$2B47F0
 
|Introduction - Night
 
|Introduction - Night
−
|-
 
−
|0066c8,24
 
−
|Credits - Flames
 
−
|-
 
−
|006e18,40
 
−
|Sound Test - Foreground
 
−
|-
 
−
|006E98,10
 
−
|Sound Test - Amy
 
 
|}
 
|}
  
−
==MARS Palettes==
+
===MARS Format===
−
 
+
{| border="1" class="prettytable"
−
Now, you may say "Oh, great! Now I can change the palettes in the levels, but what I really wanted to do was change Mighty's palette to look like Sonic!
 
−
 
 
−
Alright. You can do that, but this is the tricky part. As you can imagine, the 32x uses it's own palette format that has been dubbed/officially called(?) the MARS format. Why?
 
−
Simply because MARS was a prototype name for the 32x. Or the Super 32x in Japan. Anywho, this format is different and very confusing. Let's take a look.
 
−
 
 
−
XB+(brightness G, max blue value is C)GR<br/>
 
−
//I only made that mark on the first line to help you <br/>
 
−
//understand it better. It still applies to the other<br/>
 
−
//two characters.<br/>
 
−
 
 
−
 
 
−
Wow. Another 2-byte format. Well, what do the characters represent? Let's see. For the Blue value, the character to edit is the second one, but the first character controls the
 
−
brightness, for a nicer effect. The brightness of the blue can be a max of 7, and, of course, a min of 0. But if it's 0, you get no blue. The maximum blue value is C, or it starts affecting the green. The green is the same, but instead of the first character affecting the brightness, the second one does. So, a value from C-F refers to the brightness of the green. The limit of the green value is E. Leaving Red as our last color, with a max value of F, and you can change the green to F if you like.
 
−
 
 
−
Voila. Now for the offsets.
 
−
 
 
−
{| border="1"
 
 
! Palette Offset||Description
 
! Palette Offset||Description
 
|-
 
|-
−
|0022921A
+
|$0022921A
 
|Mighty The Armadillo
 
|Mighty The Armadillo
 
|-
 
|-
−
|0022923E
+
|$0022923E
 
|Knuckles The Echidna
 
|Knuckles The Echidna
 
|-
 
|-
−
|0022927E
+
|$0022927E
 
|Vector The Crocodile
 
|Vector The Crocodile
 
|-
 
|-
−
|0022925C
+
|$0022925C
 
|Charmy The Bee
 
|Charmy The Bee
 
|-
 
|-
−
|002292A0
+
|$002292A0
−
|Heavy The Robot
+
|Heavy The Mechanic
 
|-
 
|-
−
|002292BE
+
|$002292BE
−
|Bomb The Robot
+
|Bomb The Mechanic
 
|-
 
|-
−
|002292DC
+
|$002292DC
 
|Espio The Chameleon
 
|Espio The Chameleon
 
|-
 
|-
−
|0000E7C4
+
|$0000E7C4
 
|Espio's Rotating Pallete
 
|Espio's Rotating Pallete
 
|}
 
|}
  
−
Say you want to conver your favorite colors from photoshop to MARS to make Mighty juuuuust the right shade of blue.
+
To convert between Genesis/MARS colors, use [[RGB2GBA32XCC]].
−
Take a RGB color.
 
−
Now you need to find the red(r) green(g) and blue(b) values for this color. In paint you can select the color and chose Colors>Edit Colors>>Define Custom Colors. In Photoshop, you can double-click the color chosen on the bottom of the tool bar. In any case, find the specifics of your choice color.
 
−
It's got three values, r, g, and b.
 
−
 
 
−
(note: all math is in decimal. =/)
 
−
 
 
−
[(r + 1) / 8.25] rounded to the nearest integer = R.
 
−
[(g + 1) / 8.25] rounded to the nearest integer = G.
 
−
[(b + 1) / 8.25] rounded to the nearest integer = B.
 
−
 
 
−
R    = x
 
−
G * 2 = y
 
−
B * 4 = z
 
−
 
 
−
x      = X
 
−
y * 16 = Y
 
−
z * 256= Z
 
−
 
 
−
Z + Y + Z = N
 
−
 
 
−
convert N to HEX.
 
−
 
 
−
If your result does not have four digits (ex. 1F, 893, A, 0), tack 0s on to the beggining. (ex. 001F, 0893, 000A, 0000).
 
−
 
 
−
There you have your 32-bit (MARS) color. (Thanks Kojichao and EricJS. Big helps.)
 
−
 
 
−
But what if you want to edit, say, an enemies pallete? That's MARS but not documented (yet, hopefully).
 
−
Well, now you can convert their colors (bebug>32X VDP) and find them in the ROM. once you know where it is, you can change it.
 
−
 
 
−
Great tools for aiding in this are Icy Guy's GBA color picker (assure byteswap is disabled) which can be obtained from Zophar's Domain, and Heran Bago's RGB2GBA32XCC (shameless plug).
 
−
 
 
−
==Crackers Palettes==
 
  
−
Well, thanks to ICEknight, we now know that there are Sonic Crackers palettes in Chaotix.
+
==Character Art Format==
 +
The specifications on the character art format, originally cracked and documented by [[drx]], consist as follows:
  
−
$005750 in Chaotix ROM == $008D08 in Crackers ROM
+
''This section is pending a complete rewrite. Coming soon...''
  
−
==Character Art Compression Format==
+
Art stored in this format can be edited using the [[Chaoxed]] utility.
  
−
'''Intro'''<br>
+
===Art Pointers===
−
The way this art works is that the coordinates are just like a coordinate plane
+
'''Note:''' All pointers for these locations add $2000000 to the listed offset.
−
positive and negative values. So if the x pos = -4, and y pos = 5, its just like saying on a regular plane that
+
{| border="1" class="prettytable"
−
the x pos = 0, and the y pos = 9. There is a big list of pointers that point to another list of pointers which point to art datas in chaotix. Each art data is one frame. For example, mighty's starting
 
−
frame is at 0x0a0674. Look at the datas there, and you'll notice it follows this
 
−
format:<br><br>
 
−
 
 
−
'''Header'''<br>
 
−
The header tells you how big the piece of art is, and the origin is always 0,0.<br>
 
−
    x1 = 0x00 (word)
 
−
    x2 = 0x02 (word)
 
−
    y1 = 0x04 (byte) (Followed by it is 00, don't ask me why they did this =P)
 
−
    y2 = 0x06 (byte) (Again, it is followed by another 00)
 
−
<br>
 
−
'''Art Data'''<br>
 
−
After the header, there is a header for a line of pixels. After this header there
 
−
is bytes of pixels. I will explain that in a second.
 
−
    x1 = 0x00 (byte)
 
−
    x2 = 0x01 (byte)
 
−
    y = 0x02 (byte) (Also followed by 00)
 
−
For however long that line is, pixel data will follow it. To find out how many
 
−
pixels will follow, just use x2 - x1 (distance formula). Each pixel following it
 
−
correspond to a color in the palette. Followed are More line headers followed by
 
−
more Pixels, for each line (y2 - y1). You know it is finished when you see straight
 
−
word of 0x000.<br><br>
 
−
 
 
−
==Art Pointers==
 
−
Here is a list of pointers that point to more pointers that point to each frame of
 
−
art per character. <br>'''Note:''' Each pointer is added 0x2000000 to it:
 
−
<br>
 
−
{| border="1"
 
 
! Art Offset||Description
 
! Art Offset||Description
 
|-
 
|-
−
|0a0504
+
|$0A0504
 
|Mighty
 
|Mighty
 
|-
 
|-
−
|0b18bc
+
|$0B18BC
 
|Knuckles
 
|Knuckles
 
|-
 
|-
−
|0cb3b4
+
|$0CB3B4
 
|Charmy
 
|Charmy
 
|-
 
|-
−
|0d4e44
+
|$0D4E44
 
|Vector
 
|Vector
 
|-
 
|-
−
|0f1130
+
|$0F1130
 
|Bomb
 
|Bomb
 
|-
 
|-
−
|0f6a18
+
|$0F6A18
 
|Heavy
 
|Heavy
 
|-
 
|-
−
|101304
+
|$101304
 
|Espio
 
|Espio
 
|-
 
|-
−
|11b088
+
|$11B088
 
|Mighty ring and hand
 
|Mighty ring and hand
 
|}
 
|}
−
<br>
+
 
 +
==Contributors==
 +
* [[drx]] - Data offsets (art, palettes), character art format information.
 +
 
 
{{SCHGuides}}
 
{{SCHGuides}}
 
[[Category:Sonic Community Hacking Guide]]
 
[[Category:Sonic Community Hacking Guide]]

Revision as of 20:42, 2 April 2008

This is the Knuckles' Chaotix portion of the Sonic Community Hacking Guide.

Palette Locations

Genesis Format

Palette Offset Description
$0066C8 Credits - Flames
$006E18 Sound Test - Foreground
$006E98 Sound Test - Amy
$2B3CF0 Amazing Arena - Morning / Day
$2B3D70 Amazing Arena - Sunset / Night
$2B3EF0 Techno Tower - Morning
$2B4070 Techno Tower - Day
$2B41F0 Techno Tower - Sunset
$2B42F0 Techno Tower - Night
$2B4470 Marina Madness - Morning
$2B44F0 Marina Madness - Day
$2B4570 Marina Madness - Sunset
$2B45F0 Marina Madness - Night
$2B4670 Introduction - Morning
$2B46F0 Introduction - Day
$2B4770 Introduction - Sunset
$2B47F0 Introduction - Night

MARS Format

Palette Offset Description
$0022921A Mighty The Armadillo
$0022923E Knuckles The Echidna
$0022927E Vector The Crocodile
$0022925C Charmy The Bee
$002292A0 Heavy The Mechanic
$002292BE Bomb The Mechanic
$002292DC Espio The Chameleon
$0000E7C4 Espio's Rotating Pallete

To convert between Genesis/MARS colors, use RGB2GBA32XCC.

Character Art Format

The specifications on the character art format, originally cracked and documented by drx, consist as follows:

This section is pending a complete rewrite. Coming soon...

Art stored in this format can be edited using the Chaoxed utility.

Art Pointers

Note: All pointers for these locations add $2000000 to the listed offset.

Art Offset Description
$0A0504 Mighty
$0B18BC Knuckles
$0CB3B4 Charmy
$0D4E44 Vector
$0F1130 Bomb
$0F6A18 Heavy
$101304 Espio
$11B088 Mighty ring and hand

Contributors

  • drx - Data offsets (art, palettes), character art format information.
Sonic Community Hacking Guide
General
SonED2 Manual | Subroutine Equivalency List
Game-Specific
Sonic the Hedgehog (16-bit) | Sonic the Hedgehog (8-bit) | Sonic CD (prototype 510) | Sonic CD | Sonic CD (PC) | Sonic CD (2011) | Sonic 2 (Simon Wai prototype) | Sonic 2 (16-bit) | Sonic 2 (Master System) | Sonic 3 | Sonic 3 & Knuckles | Chaotix | Sonic Jam | Sonic Jam 6 | Sonic Adventure | Sonic Adventure DX: Director's Cut | Sonic Adventure DX: PC | Sonic Adventure (2010) | Sonic Adventure 2 | Sonic Adventure 2: Battle | Sonic Adventure 2 (PC) | Sonic Heroes | Sonic Riders | Sonic the Hedgehog (2006) | Sonic & Sega All-Stars Racing | Sonic Unleashed (Xbox 360/PS3) | Sonic Colours | Sonic Generations | Sonic Forces
Technical information
Sonic Eraser | Sonic 2 (Nick Arcade prototype) | Sonic CD (prototype; 1992-12-04) | Dr. Robotnik's Mean Bean Machine | Sonic Triple Trouble | Tails Adventures | Sonic Crackers | Sonic 3D: Flickies' Island | Sonic & Knuckles Collection | Sonic R | Sonic Shuffle | Sonic Advance | Sonic Advance 3 | Sonic Battle | Shadow the Hedgehog | Sonic Rush | Sonic Classic Collection | Sonic Free Riders | Sonic Lost World
Legacy Guides
The Nemesis Hacking Guides The Esrael Hacking Guides
ROM: Sonic 1 | Sonic 2 | Sonic 2 Beta | Sonic 3

Savestate: Sonic 1 | Sonic 2 Beta/Final | Sonic 3

Sonic 1 (English / Portuguese) | Sonic 2 Beta (English / Portuguese) | Sonic 2 and Knuckles (English / Portuguese)
Move to Sega Retro
Number Systems (or scrap) | Assembly Hacking Guide | 68000 Instruction Set | 68000 ASM-to-Hex Code Reference | SMPS Music Hacking Guide | Mega Drive technical information
Retrieved from "https://info.sonicretro.org/index.php?title=SCHG:Chaotix&oldid=56583"