Difference between revisions of "Chaotix"
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|$11B088 | |$11B088 | ||
|Mighty ring and hand | |Mighty ring and hand | ||
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| + | |||
| + | ==Mapping Locations== | ||
| + | ===Planes, Enigma-compressed=== | ||
| + | {| border="1" class="prettytable" | ||
| + | !ROM Address||X Size||Description | ||
| + | |- | ||
| + | |$2C801A | ||
| + | |37 | ||
| + | |Sound Test layout | ||
|} | |} | ||
Revision as of 12:36, 22 January 2010
This is the Sonic Community Hacking Guide for Knuckles' Chaotix.
Contents
Pointer lists
Level data pointers
Knuckles' Chaotix uses lists of pointers to get level data. On the 68000 side, these lists come in two forms:
- Triple indirection - At the given address is a list of pointers corresponding to the current level. At each address in that list is a list of pointers corresponding to stage numbers. At each address in this new list is a list of addresses corresponding to the time of day, whose entries point to the actual data.
- Offset lists - The pointers are represented as jump tables are represented (a list of words describing offsets), except this time, the offsets are from the address of each word, and not from a master address. These lists take the form
zone 0 stage 0 morning zome 0 stage 0 day zone 0 stage 0 sunset zone 0 stage 0 night zone 0 stage 1 morning zone 0 stage 1 day ... zone 0 stage 6 sunset zone 0 stage 6 night zone 1 stage 0 morning ...
- Some assume the zone, and therefore take this format:
stage 0 morning stage 0 day stage 0 sunset stage 0 night stage 1 morning stage 1 day ... stage 6 sunset stage 6 night
| ROM Address | List Format | Description |
|---|---|---|
| $2B32B0 | Offset list | Genesis format level palettes. |
| $2B61FA | Offset list, zone assumed | Amazing Arena lit palettes. |
Palette Locations
Genesis Format
| Palette Offset | Description |
|---|---|
| $0066C8 | Credits - Flames |
| $006E18 | Sound Test - Foreground |
| $006E98 | Sound Test - Amy |
| $2B3470 | Botanic Base Stages 1-3 - Morning |
| $2B34F0 | Botanic Base Stages 1-3 - Day |
| $2B3570 | Botanic Base Stages 1-3 - Sunset |
| $2B35F0 | Botanic Base Stages 1-3 - Night |
| $2B3670 | Botanic Base Stage 4 - Morning |
| $2B36F0 | Botanic Base Stage 4 - Day |
| $2B3770 | Botanic Base Stage 4 - Sunset |
| $2B37F0 | Botanic Base Stage 4 - Night |
| $2B3870 | Botanic Base Stage 5 - Morning |
| $2B38F0 | Botanic Base Stage 5 - Day |
| $2B3970 | Botanic Base Stage 5 - Sunset |
| $2B39F0 | Botanic Base Stage 5 - Night |
| $2B3A70 | Speed Slider - Morning |
| $2B3AF0 | Speed Slider - Day |
| $2B3B70 | Speed Slider Stages 1 and 2 - Sunset |
| $2B3BF0 | Speed Slider Stages 3-5 - Sunset |
| $2B3C70 | Speed Slider - Night |
| $2B3CF0 | Amazing Arena Stages 1 and 2 - Morning/Day - Unlit |
| $2B3D70 | Amazing Arena Stages 1 and 2 - Sunset/Night - Unlit |
| $2B3DF0 | Amazing Arena Stages 3 and 4 - All - Unlit |
| $2B3E70 | Amazing Arena Stage 5 - All - Unlit |
| $2B3EF0 | Techno Tower Stages 1 and 2 - Morning |
| $2B3F70 | Techno Tower Stages 3 and 4 - Morning |
| $2B3FF0 | Techno Tower Stage 5 - Morning |
| $2B4070 | Techno Tower Stages 1 and 2 - Day |
| $2B40F0 | Techno Tower Stages 3 and 4 - Day |
| $2B4170 | Techno Tower Stage 5 - Day |
| $2B41F0 | Techno Tower Stages 1-4 - Sunset |
| $2B4270 | Techno Tower Stage 5 - Sunset |
| $2B42F0 | Techno Tower Stages 1 and 2 - Night |
| $2B4370 | Techno Tower Stages 3 and 4 - Night |
| $2B43F0 | Techno Tower Stage 5 - Night |
| $2B4470 | Marina Madness - Morning |
| $2B44F0 | Marina Madness - Day |
| $2B4570 | Marina Madness - Sunset |
| $2B45F0 | Marina Madness - Night |
| $2B4670 | Isolated Island - Morning |
| $2B46F0 | Isolated Island - Day |
| $2B4770 | Isolated Island - Sunset |
| $2B47F0 | Isolated Island - Night |
| $2B4870 | Practice Mode |
| $2B48F0 | World Entrance (First Screen) - Morning |
| $2B4970 | World Entrance (First Screen) - Day |
| $2B49F0 | World Entrance (First Screen) - Sunset |
| $2B4A70 | World Entrance (First Screen) - Night |
| $2B6232 | Amazing Arena Stages 1 and 2 - Morning - Lit |
| $2B62B2 | Amazing Arena Stages 3 and 4 - Morning - Lit |
| $2B6332 | Amazing Arena Stage 5 - Morning - Lit |
| $2B63B2 | Amazing Arena Stages 1 and 2 - Day - Lit |
| $2B6432 | Amazing Arena Stages 3 and 4 - Day - Lit |
| $2B64B2 | Amazing Arena Stage 5 - Day - Lit |
| $2B6532 | Amazing Arena Stages 1 and 2 - Sunset - Lit |
| $2B65B2 | Amazing Arena Stages 3 and 4 - Sunset - Lit |
| $2B6632 | Amazing Arena Stage 5 - Sunset - Lit |
| $2B66B2 | Amazing Arena Stages 1 and 2 - Night - Lit |
| $2B6732 | Amazing Arena Stages 3 and 4 - Night - Lit |
| $2B67B2 | Amazing Arena Stage 5 - Night - Lit |
MARS Format
| Palette Offset | Description |
|---|---|
| $00001924 | HUD (maybe Sonic, Tails) |
| $0000E7C4 | Espio's Rotating Palette |
| $0022921A | Mighty The Armadillo |
| $0022923E | Knuckles The Echidna |
| $0022925C | Charmy The Bee |
| $0022927E | Vector The Crocodile |
| $002292A0 | Heavy The Mechanic |
| $002292BE | Bomb The Mechanic |
| $002292DC | Espio The Chameleon |
| $002299D6 | Sega logo |
To convert from standard RGB colors to MARS colors, use HBGDRGB2GBA32XCC.
Art Locations
Genesis Format Art, Nemesis-compressed
| Art Offset | Description |
|---|---|
| $22E100 | 8x8 Menu Font (same as in Sonic Crackers) |
| $22E40E | Ring |
| $2C2DC8 | Sound Test Amy Rose |
| $2C4B20 | Sound Test letters/numbers |
| $2C7818 | Sound Test art |
| $2CE004 | Special Stage background spheres |
| $2CFA40 | Bonus Stage background |
MARS Format 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 |
Mapping Locations
Planes, Enigma-compressed
| ROM Address | X Size | Description |
|---|---|---|
| $2C801A | 37 | Sound Test layout |
RAM Locations
These locations are offset from the base of RAM ($FF0000, which is mirrored to $FFFF0000).
| RAM offset | Size | Description |
|---|---|---|
| $D460 | $40 words | Genesis palette cache. |
| $D560 | $40 words | Copy of the current level's Genesis palette. Used by the Bonus Stage to reload the level. |
| $DFDE | Word | Current game mode. Known values:
|
| $DFE0 | Word | Current game submode.
|
| $DFF2 | Word | Current level:
|
| $DFF4 | Word | Current stage number. For normal stages, this starts from 1; 0 == 1 and 6 == 5 (except 6 crashes the game). For the introduction mode of Isolated Island, 0 is the opening (before Knuckles meets Espio), 1-4 behave as expected, 5 is Practice Mode, and 6 == 5 (with crash). |
| $DFF6 | Word | Current time of day:
If bit 0 is set ($01, $03, $05, $07), then Amazing Arena is lit, otherwise it is unlit. |
| $E008 | Word | Number of rings. |
| $FCE6 | Byte | Current pan of the ring sound; positive is left, negative/zero is right. |
| $FCFC | Byte | Current song; only set by a certain function and only used by the Bonus Stage to replay the previous song when exiting. |
| $FFD0 | Byte | Current demo number (0-4). |
Other ROM Data
Genesis VDP Register List Locations
Knuckles' Chaotix reloads VDP registers with each game mode. At each address is a list of word corresponding to the register/value words sent to the VDP (unmodified). A word $0 ends the list.
| ROM offset | Description |
|---|---|
| $B34 | Sega screen |
| $3736 | Title screen |
| $4CE6 | Level |
| $5A8A | Special Stage |
Music Playlist
At address $76ED0, a null-terminated list of bytes corresponding to song numbers is given for the five normal levels and the two Isolated Island levels (see RAM address $DFF2). The World Entrance determines which song to play in code, so a code edit would be required. All other game modes play a song directly.
Contributors
- drx - Data offsets (art, palettes), character art format information.
- Heran Bago - Some Nemesis-compressed art locations
- andlabs - More stuff