Kingdom Hearts Birth By Sleep - OLO format (Object Spawner)

This file controls what objects and how they’re spawned in levels within Kingdom Hearts Birth by Sleep.

Header

Offset	Type	Description
0x0	char[4]	File identifier, always @OLO.
0x4	uint16	File version.
0x6	uint16	Flag from OLO Flags
0x8	uint32	Number of Objects to spawn.
0xC	uint32	Offset to the Object Name section.
0x10	uint32	Number of file path addresses.
0x14	uint32	Offset to a list of Path Name for files.
0x18	uint32	Number of Script name
0x1C	uint32	Offset to a list of Path Name for Scripts.32
0x20	uint32	Number of Mission labels.
0x24	uint32	Offset to the Mission Name definitions.
0x28	uint32	Number of Triggers.
0x2C	uint32	Offset to the Trigger Data definitions.
0x30	uint32	Number of Group data.
0x34	uint32	Offset to the Group Data definitions.
0x38	uint32[2]	Padding.

OLO Flags

Value	Name	Description
0	FLAG_NONE	Unused
1	FLAG_ENEMY	Used for regular enemies
2	FLAG_GIMMICK	Used for gimmick objects
4	FLAG_NPC	Used for Non Playable Characters
8	FLAG_PLAYER	Used for Player Characters
16	FLAG_EVENT_TRIGGER	Used for triggers

OLO Flags is a bitfield.

Object Name

Type	Description
char[16]	File to load.

Object Name just consists of a list of Objects where its count is decided by uiObjNameNum

Path Name Section

Type	Field Name
char[32]	szName

Mission Name

Type
string

Trigger Data

Offset	Type	Description
0x0	Vector3	Trigger location.
0xC	Vector3	Trigger scale.
0x18	uint32	Trigger ID. (uiID)
0x1C	uint32	Trigger Behavior
0x20	uint16	Parameter 1 (Room to Teleport to)
0x22	uint16	Parameter 2 (Room Entrance to use)
0x24	uint32	ID of CTD file to load
0x28	uint32	Possibly a reference to Trigger Type (Game Trigger)
0x2C	float	Yaw rotation.

Trigger Behavior

Bit	Count	Behavior
0	4	Type
4	4	Shape
8	1	Fire
9	1	Stop
10	22	Padding

Trigger Type

Value	Name	Description
0	Scene Jump
1	Appear Enemy
2	Begin Gimmick
3	Begin Event
4	Destination
5	Message
6	Mission

Trigger Shape

Value	Description
0	Box
1	Sphere
2	Cylinder

Group Data

Offset	Type	Description
0x0	Vector3	Object center location.
0xC	float	Radius of object.
0x10	uint32	ID of the Trigger associated
0x14	uint32	Group Flag
0x18	float	Appear Parameter
0x1C	uint32	Offset to Group Data (?)
0x20	float	Dead Rate
0x24	uint16	Game Trigger
0x26	uint8	Mission Parameter
0x27	uint8	Unknown Parameter
0x28	uint32	Number of Layout Object Data entities.
0x2C	uint32	Offset to the Layout Data.

Group Flag

Bit	Count	Behavior
0	4	Appear Type
4	1	Link
5	1	Appear OK
6	1	Link Invoke
7	4	Step
11	1	Fire
12	8	ID
20	1	Specified
21	1	Game Trigger Fire
22	1	Mission Fire
23	1	All Dead No Appear
24	5	Group ID
29	3	Padding

Appear Type

Value	Name	Description
0	APPEAR_TYPE_NONE
1	APPEAR_TYPE_PLAYER_DISTANCE
2	APPEAR_TYPE_SPECIFIED
3	APPEAR_TYPE_NPC_DISTANCE

Layout Data

Offset	Type	Description
0x0	uint32	Object Name
0x4	Vector3	Position
0x10	Vector3	Rotation
0x1C	float	Height
0x20	uint32	Layout Info
0x24	uint32	Unique ID
0x28	uint16	Parameter 1 (Reward ID for Sticker & Chest)
0x2A	uint16	Parameter 2 (Controls effect spawns)
0x2C	uint16	Parameter 3
0x2E	uint16	Trigger
0x30	float	Parameter 5
0x34	float	Parameter 6
0x38	float	Parameter 7
0x3C	float	Parameter 8
0x40	int32	Message ID
0x44	uint32	Path Name
0x48	uint32	Script Name
0x4C	uint32	Mission Label

### Layout Info

Bit	Count	Behavior
0	1	Appear
1	1	Load Only
2	1	Dead
3	8	ID
11	1	Model Display Off
12	8	Group ID
20	1	No Load
21	8	Network ID
29	3	Padding