Vehicle Animation

The vehicle animation resource type stores per-vehicle user-triggered animations, working in conjunction with a Body Part Remap Data resource.

Structures

Note: This type has no available debugging symbols. All structures are based on user research and are unconfirmed.

Vehicle animation resource

32-bit

Offset	Length	Type	Name	Description	Comments
0x0	0x4	uint32_t	?	Resource size
0x4	0x4	uint32_t	?	Version number	1
0x8	0x4	uint32_t	?	Number of parts
0xC	0x4	BrnAnimationPart*	?	Parts
0x10	0x4	uint32_t	?	Number of animation data entries
0x14	0x4	BrnVehicleAnimation*	?	Animation data
0x18	0x4	uint32_t	?	Number of state entries
0x1C	0x4	BrnVehicleStateAnimation*	?	State data
0x20	0x4	int8_t[4]	?	Wheel part model indices	Order: Front left, front right, rear left, rear right -1 if unused; no animation displays
0x24	0xC			padding
0x30	0x100	Matrix44Affine[4]	?	Wheel positions	Order: Front left, front right, rear left, rear right Animation only; real positions in deformation resource

64-bit

Offset	Length	Type	Name	Description	Comments
0x0	0x4	uint32_t	?	Resource size
0x4	0x4	uint32_t	?	Version number	1
0x8	0x4	uint32_t	?	Number of parts
0xC	0x4			padding
0x10	0x8	BrnAnimationPart*	?	Parts
0x18	0x4	uint32_t	?	Number of animation data entries
0x1C	0x4			padding
0x20	0x8	BrnVehicleAnimation*	?	Animation data
0x28	0x4	uint32_t	?	Number of state entries
0x2C	0x4			padding
0x30	0x8	BrnVehicleStateAnimation*	?	State data
0x38	0x4	int8_t[4]	?	Wheel part model indices	Order: Front left, front right, rear left, rear right -1 if unused; no animation displays
0x3C	0x4			padding
0x40	0x100	Matrix44Affine[4]	?	Wheel positions	Order: Front left, front right, rear left, rear right Animation only; real positions in deformation resource

BrnWorld::BrnAnimationPart

To do: Research the non-primary indices.

Offset	Length	Type	Name	Description	Comments
0x0	0x1	int8_t	?	Part model index	Primary index from the graphics resource
0x1	0x1	int8_t	?	Second part model index?	From the graphics resource. -1 if unused
0x2	0x1	int8_t	?	Third part model index?	From the graphics resource. -1 if unused

BrnWorld::BrnVehicleAnimation

To do: Research types/flags, understand connection between byte at 0x2 and secondary data.

Offset	Length	Type	Name	Description	Comments
0x0	0x1	int8_t	?	Part model index	From the graphics resource
0x1	0x1	int8_t	?	Animation type	See animation type
0x2	0x1	int8_t	?	State part model index?	Refers to state part model on cops but not others. See state
0x3	0xD			padding
0x10	0x30	Matrix33	?

BrnWorld::BrnVehicleStateAnimation

To do: Understand the animation type/action field.

Offset	Length	Type	Name	Description	Comments
0x0	0x1	int8_t	?	Part model index	From the graphics resource
0x1	0x1	int8_t	?	Animation trigger	See animation trigger
0x2	0x1	bool	?	Loop animation
0x3	0xD			padding
0x10	0x20	Vector4[2]	?

Enumerations

Animation type

To do: Values such as 3 are used; explore what they do and determine if these are flags or not.

Name	Value	Comments
?	0	None
?	1	Rotate
?	2	Transform
?	3
?	4	Rotate (reversed)?
?	5	Rotate once and return to origin

Animation trigger

Name	Value	Comments
?	0
?	1	Turning
?	2
?	3
?	4
?	5
?	6	Front right wheel rotation
?	7	Front left wheel rotation
?	8	Rear right wheel rotation
?	9	Rear left wheel rotation
?	10	Brake
?	11	Throttle
?	12
?	13	Speed
?	14	RPM
?	15
?	16
?	17
?	18
?	19
?	20	Hover
?	21	Boost