Sonic the Hedgehog (16-bit)/Art Editing
From Sonic Retro
Revision as of 12:01, 26 July 2012 by MainMemory (talk | contribs)
SCHG: Sonic the Hedgehog |
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There are several different tools that can be used to edit art. SonED2 is probably the best tool to use for editing level art, and can also be used on palettes. HivePal is also a great tool for editing palettes. SonMapEd is useful for editing both art and mappings - it can extract data from either a ROM or use split binary files, and has internal compression/decompression support.
Uncompressed Art Locations
Most of this information was taken from Nemesis' guide. Please excuse any mistakes or misunderstandings, as that guide wasn't exactly well-written. A description is written in parentheses after the original name if I deem it necessary; if I don't know what it is, "Unknown" appears in that place. Please correct this if you know. It doesn't list the number of blocks taken up, so if you know, put it in. Otherwise, I'll find out eventually.
Offset | Description | # of blocks |
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Zone Independent | ||
$1CADA | Numbers used on counters in game | ? |
$21AFE | Sonic | ? |
$6A324 | Giant Ring | ? |
Green Hill Zone | ||
$66AD6 | Waterfall tiles | ? |
$66CD6 | Flower with pointy petals | ? |
$670D6 | Flower with curved petals | ? |
Marble Zone | ||
$6755A | Lava surface | ? |
$67836 | Lava | ? |
$67E56 | Flame torch against stone | ? |
Scrap Brain Zone | ||
$68156 | Steam in background | ? |
Compressed Art Locations - Nemesis
See SCHG:Sonic the Hedgehog/Art Editing/Nemesis Compressed Art.
Compressed Art Locations - Kosinski format
- $3DCF2 - GHZ main level patterns
- $414D4 - LZ main level patterns
- $46016 - MZ main level patterns
- $4A7FE - SLZ main level patterns
- $510F0 - SYZ main level patterns
- $57A66 - SBZ main level patterns
Palette Locations
Usually, it's not really necessary to edit a palette in hex. Palette editors give you instant feedback for each RGB value, and the palette can be easily saved as a separate binary and reimported into the ROM. However, it is sometimes desirable or necessary to do it in hex, and it can't hurt to know how it's done.
These are the ROM offsets of the palettes in Sonic 1, as listed by HivePal:
Name | Offset |
---|---|
Sega Logo (Background) | $2208 |
Sega Logo (SEGA) | $20C0 |
Title Screen | $2288 |
Title Screen - Water Cycle | $1B66 |
Level Select | $2308 |
Sonic | $2388 |
Green Hill | $23A8 |
Green Hill - Water Cycle | $1B86 |
Labyrinth | $2408 |
Labyrinth - Sonic Underwater | $2828 |
Labyrinth - Sonic Underwater (Alt) | $2468 |
Labyrinth - Underwater | $2488 |
Labyrinth - Water Cycle | $1BA6 |
Labyrinth - Conveyor Cycle | $1BC6 |
Labyrinth - Conveyor Cycle Underwater | $1BD8 |
Marble | $24E8 |
Star Light | $2548 |
Star Light lights | $1C52 |
Spring Yard | $25A8 |
Spring Yard - Cycle 1 | $1C76 |
Spring Yard - Cycle 2 | $1C96 |
Scrap Brain Act 1 | $2608 |
Scrap Brain Act 2/Final | $2668 |
Scrap Brain Act 3 | $2748 |
Scrap Brain Act 3 - Sonic Underwater | $2848 |
Scrap Brain Act 3 - Sonic Underwater (Alt) | $27A8 |
Scrap Brain Act 3 - Underwater | $27C8 |
Scrap Brain Act 1/Act 2 - Cycle 1 | $1D0A |
Scrap Brain Act 1/Act 2 - Cycle 2 | $1D1A |
Scrap Brain Act 1/Act 2 - Cycle 3 | $1D2A |
Scrap Brain Act 1/Act 2 - Cycle 4 | $1D3A |
Scrap Brain Act 1/Act 2 - Cycle 5 | $1D46 |
Scrap Brain Act 1/Act 2 - Cycle 6 | $1D56 |
Scrap Brain Act 1/Act 2 - Cycle 7 | $1D66 |
Scrap Brain Act 1/Act 2 - Cycle 8 | $1D86 |
Scrap Brain Act 2 - Cycle 1 | $1D90 |
Scrap Brain Act 2 - Cycle 2 | $1DA0 |
Scrap Brain Act 3 - Water Cycle | $1BEA |
Special Stage - Sonic | $26C8 |
Special Stage No. 1 | $26E8 |
Special Stage No. 2 | $2708 |
Special Stage No. 3 | $2728 |
Special Stage Title Card | $2868 |
Special Stage Cycle 1 | $4ACA |
Special Stage Cycle 2 | $4B12 |
Special Stage Cycle 3 | $4B92 |
Continue - Sonic | $28E8 |
Continue | $2908 |
Ending - Sonic | $2928 |
Ending | $2948 |