SCHG:Sonic Adventure DX: PC/RAM Editing

This short article is in need of work. You can help Sonic Retro by adding to it.

Note: All values are signed.

Global Variables

Address (hex)	Type	Description
00912698	Byte	Currently playing music
03B0EF34	Byte	Lives
03B0EF35	Byte	Time in frames. Max 60.
03B0EF38	Byte	Voice Language 0 Japanese 1 English
03B0EF40	Byte	Setting this to -1 will hide the HUD. However, it is constantly being written to by code at 00413D9E. It will have no effect unless you disable that code.
03B0EF48	Byte	Time in minutes
03B0F0E4	2 Bytes	Rings. Allowing this to reach a negative value (over 32767) will crash the game.
03B0F0E8	Byte	Text Language 0 Japanese 1 English 2 French 3 Spanish 4 German
03B0F0EC	Byte	Debug. Setting this to a non-negative value displays collision spheres around both characters when on the ground and highlights bottomless pits in white.
03B0F0F8	Float	X Gravity
03B0F0FC	Float	Y Gravity
03B0F100	Float	Z Gravity
03B0F104	4 Bytes	Enemy Bonus
03B0F104	4 Bytes	Level Frame Counter
03B0F128	Byte	Time in seconds.
03B0F13C	4 Bytes	Frame Counter
03B18895	Byte	Light Speed Shoes obtained
03B18896	Byte	Crystal Ring obtained
03B188D5	Byte	Jet Anklet obtained
03B18DB5	Byte	Metal Sonic. Set this to 1 to replace Sonic with Metal Sonic. May crash if you set this during a level.
03B18DB8	Byte	Selection on Pause Menu 0 Conitinue 1 Restart 2 Set Up Pad 3 Quit 4 Map 5 Camera
03B22DC0	Byte	Current Character 0 Sonic 2 Tails 3 Knuckles 5 Amy 6 E-102 Gamma 7 Big
03B22DC4	Byte	Level Copy. Doesn't appear to do anything.
03B22DC8	Byte	Entrance Number. Only applies to Adventure Fields.
03B22DCC	Byte	Current Level
03B22DD0	4 Bytes	Set this to any non-zero value to speed up level transitions.
03B22DD4	Byte	Adventure Field Act
03B22DD8	Byte	Adventure Field Level
03B22DE4	Byte	Game Status. (Bad Textures) means that the level will load incorrect textures. This has no effect on the menu. 0 Reset Level (Bad Textures) 1 Clear Screen, disable movement 2 Crash if used directly (Used when dying/restarting) 3 Clear Screen, disable movement 4 Show Level, enable movement 5 Load Adventure Field 6 Die 7 Restart 8 Crash 9 Transition w/ fadeout 10 Clear Screen, disable movement 11 Restart Copy 12 Restart Copy 13 Crash 14 Credits 15 Normal 16 Paused 17 Load Level w/ Loading Screen 18 Crash 19 Return to Title Screen Copy 20 Return to Title Screen 21 Loading Screen (Bad Textures)/Menu 22 Restart Level (Bad Textures) 23 Return to Title Screen Copy 24 Load Level w/ Loading Screen
03B22DEC	Byte	Current Act
03B22DF0	Byte	Next Level. Change this while the screen is fading out.
03B22E18	Byte	Next Act. Change this while the screen is fading out.
03B29D08	Byte	Debug. Setting this to 1 displays collision spheres around objects and activates free movement mode. (Except for Tails.)
03B2A2F2	Byte	Menu voice 0 Default 1 Sonic 2 Tails 3 Knuckles 4 Amy 5 Gamma 6 Big 7 Eggman 8 Tikal
03B2A2FD	Byte	Selected character in character select 0 Sonic 1 Tails 2 Knuckles 3 Amy 4 Big 5 Gamma 6 Super/Metal Sonic
03C74880	4 Bytes	Rings in vault in Casinopolis

Character Object 1

A pointer to this data for player 1 is at 03B42E10. A pointer for player 2 is at 03B25980. Length: $180

Offset (hex)	Type	Description
0	Byte	Action. Varies by character.
4	Bitfield	Status 1 Bit Value Description 0 1 On Ground 2 4 Hurt
5	Bitfield	Status 2 Bit Value Description 0 1 Ball mode 1 2 Light Speed Dash charged (Sonic only) 2 4 Attacking 3 8 Holding object 4 16 Makes the character stop what they're doing.
6	2 Bytes	Invulnerable timer
8	Bitfield	Unknown Bit Value Description 0 1 CPU controlled
9	Byte	Set this to a character ID and you'll jump as high as that character.
18	2 Bytes	X Rotation
1C	2 Bytes	Y Rotation
20	Float	X Position
24	Float	Y Position
28	Float	Z Position
2C	Float	Shield magnification factor
38	4 Bytes	Pointer to more data. Possibly movement related?

Character Object 2

A pointer to this data for player 1 is at 03B3CDF0. A pointer for player 2 is at 3B3CDF4.

Offset (hex)	Type	Description
4	Bitfield	Upgrades 1 Bit Value Description 0 1 Crystal Ring 1 2 Light Shoes 2 4 Ancient Light 3 8 Jet Anklet 4 16 Rhythym Badge 5 32 Fighting Gloves 6 64 Shovel Claw 7 128 Long Hammer
5	Bitfield	Upgrades 2 Bit Value Description 0 1 Warrior Feather 1 2 Laser Blaster 2 4 Jet Booster 3 8 Power Rod 7 128 Super Sonic
6	Bitfield	Powerups 1 Bit Value Description 0 1 Shield 1 2 Magnetic Shield (also protects you)
7	Bitfield	Powerups 2 Bit Value Description 6 64 Rings don't add to total 7 128 Invincible
C	4 Bytes	Idle Timer. Max 120000000.
38	Float	Horizontal Speed
3C	Float	Vertical Speed
9C	4 Bytes	Hang Time
A4	Float	Horizontal Speed Cap
A8	Float	Vertical Speed Cap
C4	Float	Minimum Rolling Speed
D0	Float	Minimum Running Speed
D8	Float	Ground Acceleration
DC	Float	Air Acceleration
E0	Float	Ground Deceleration
E4	Float	Brake Speed
E8	Float	Air Brake Speed
EC	Float	Air Deceleration
110	Float	Collision Size
11C	Float	Y Offset
124	Byte	Animation
140	4 Bytes	Animation Address 0x03C49D90 Tails 0x03C532A0 Knuckles 0x03C53FA8 Gamma 0x03C54880 Amy 0x03C556A0 Big 0x03C56210 Sonic