OBJC files are lists of objects. Objects are composed of a standard wrapper and then type-specific data which has its own tags. OBJC objects could be edited in-game by the developers using the GUI which was discovered by fans in the German Big Blue Box version of Oni. The editing interface is pictured on the pages of the types which the interface could edit.
- Example file
- CJBOPowerUp.BINA from level 3
- Offsets
- Offsets are given with respect to the start of the raw file's data part.
| Offset |
Type |
Raw Hex |
Value |
Description
|
| 0x00 |
4CC |
43 4A 42 4F |
OBJC |
objects
|
| 0x04 |
int32 |
18 02 00 00 |
536 |
size to end of OBJC from 0x08, in bytes
|
| 0x08 |
int32 |
27 00 00 00 |
39 |
object format version
|
| 0x0C |
int32 |
28 00 00 00 |
40 |
size of next object (black outline)
|
| 0x10 - 0x37 : first object (40 bytes)
|
| 0x38 |
int32 |
28 00 00 00 |
40 |
size of next object
|
| 0x3C - ... : second object (40 bytes), etc
|
- General layout
- The list's header (first 16 bytes) and layout is common to all 16 OBJC types (see below).
- The size of the whole list is announced at 0x04 (int32), followed by the list.
- Unlike ONIE and TMBD (which are arrays), OBJC announces the size of every object (int32).
- After the last object, the end of the list is signaled by a null next object size.
- Object header
- All objects start with the following header:
| Offset |
Type |
Raw Hex |
Value |
Description
|
| 0x00 |
char[4] |
52 52 57 50 |
PWRU |
object type
|
| 0x04 |
int32 |
AC 1C 00 00 |
7340 |
object ID
|
| 0x08 |
|
00 00 00 00 |
0x00 |
object flags; used values:
- 0x01 00 00 00 - unknown
- 0x08 00 00 00 - unknown
|
| 0x0C |
float |
E8 92 77 44 |
990.254 |
x-position
|
| 0x10 |
float |
00 00 D8 41 |
27.000000 |
y-position
|
| 0x14 |
float |
71 DD 98 43 |
305.73 |
z-position
|
| 0x18 |
float |
00 00 00 00 |
0.000000 |
rotation on the x-axis in degrees
|
| 0x1C |
float |
00 00 00 00 |
0.000000 |
rotation on the y-axis in degrees
|
| 0x20 |
float |
00 00 00 00 |
0.000000 |
rotation on the z-axis in degrees
|
OBJC types
A given list can only hold objects of a specific type, which can be:
| Type |
Long name |
File name
|
| CHAR |
Character |
CJBOCharacter.BINA
|
| CMBT |
Combat profile |
CJBOCombat.BINA
|
| CONS |
Console |
CJBOConsole.BINA
|
| DOOR |
Door |
CJBODoor.BINA
|
| FLAG |
Flag |
CJBOFlag.BINA
|
| FURN |
Furniture |
CJBOFurniture.BINA
|
| MELE |
Melee profile |
CJBOMelee Profile.BINA
|
| NEUT |
Neutral behaviour |
CJBONeutral.BINA
|
| PART |
Particle |
CJBOParticle.BINA
|
| PATR |
Patrol path |
CJBOPatrol_Path.BINA
|
| PWRU |
Powerup |
CJBOPowerUp.BINA
|
| SNDG |
Sound Group |
CJBOSound.BINA
|
| TRGV |
Trigger Volume |
CJBOTrigger_Volume.BINA
|
| TRIG |
Trigger |
CJBOTrigger.BINA
|
| TURR |
Turret |
CJBOTurret.BINA
|
| WEAP |
Weapon |
CJBOWeapon.BINA
|
|
