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'''ASB''' ('''A'''nimation '''S'''equence '''B'''inary) is a file format used to store animation sequences for actors in recent Nintendo EPD games such as ''The Legend of Zelda: Tears of the Kingdom'' and ''Nintendo Switch Sports''. This article is primarily aimed at the version that appears in ''Tears of the Kingdom'' and ''Mario vs Donkey Kong'' (v0x0417). Other ASB versions include 0x304 (''Ring Fit Adventure''), 0x3FB (''Labo Toy-Con 04'' and ''Game Builder Garage''), 0x407 (''Animal Crossing: New Horizons''), 0x40F (''Nintendo Switch Sports''), 0x410 (''Splatoon 3''), 0x418 (''Super Mario Bros. Wonder''), and 0x41A (''Nintendo Switch Online: Playtest Program''). ASB files can be found in the AS folder of the romfs as well as the AS folder of certain pack files.
'''ASB''' ('''A'''nimation '''S'''equence '''B'''inary) is a file format used to store "animation sequences" for populating "animation slots" of a model. This article is primarily aimed at version 0x41b. In ModuleSystem titles ASB files are typically found in under the "AS" folder, which can appear in the root of a title's romfs or the root of an archive file.
 
=== Version Table ===
{| class="wikitable"
|+
!Version
!Applications
!Differences From Previous
|-
|0x304  
|''Ring Fit Adventure''
|
|-
|0x3fb
|''Labo Toy-Con 04, Game Builder Garage''
|
|-
|0x407  
|''Animal Crossing: New Horizons''
|
|-
|0x40f
|''Nintendo Switch Sports''
|
|-
|0x410
|''Splatoon 3''
|
|-
|0x417
|''The Legend of Zelda: Tears of the Kingdom, Mario Vs Donkey Kong''
|
|-
|0x418
|''Super Mario Bros. Wonder''
|
|-
|0x41A
|''Nintendo Switch Online: Playtest Program''
|
|-
|0x41B
|''Nintendo Switch Online: Playtest Program''
|>Now uses exb version 3 (u32 support)
 
>Added u32 type to blackboard
|}


== File Structure ==
== File Structure ==
ASB is a little endian format which consists of node pathways triggered by AS commands. When an AS command is called, it runs the sequence of nodes connected to it which trigger and control animations and animation logic. Nodes are arranged in an array and referenced and accessed by their array index. Despite the presence of animation events in ASB files, these events do not appear to be used by the game.
ASB assumes little endian. Hashes can be assumed to be 32-bit Murmur3 unless otherwise specified.
 
All string offsets in the file are relative to the start of the string pool and name hashes are 32-bit murmur3 hashes. There are six possible parameter types: string, int (32-bit signed integer), float (32-bit floating point number), bool, vector3f, and pointer (object pointer, this is not actually possible in ASB, only usable in AINB).


Documentation is still sparse, refer to [https://github.com/dt-12345/asb this repository] for more details (names may not match exactly).
Documentation is still sparse, refer to [https://github.com/dt-12345/asb this repository] for more details (names may not match exactly).
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# Material Blend Settings
# Material Blend Settings
# Enum Resolve Table
# Enum Resolve Table
# String Pool
==== Version 0x41b ====
# File Header (0x80)
# Command Array
# Element Array
# Element Param Region
# Attachment Index Array
# Attachment Array
# State Array
# Transition Array
# Transition Data Region
# Blackboard
# Partial Skeleton Array
# Partial
# Bone Blend Array
# Transition Partial Skeleton Id Array
# Float Property Ex Array
# Tag Array
# Exb
# External Action Array
# Material Blend Array
# Enum Relocation Array
# String Pool
# String Pool


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|0x4
|0x4
|AsbString
|AsbString
|Name Offset
|Name
|-
|-
|0xc
|0xc
Line 262: Line 330:
|0x4
|0x4
|u32
|u32
|Parts Count
|Partial Count
|-
|-
|0x28
|0x28
|0x4
|0x4
|AsbPtr<Parts>
|AsbPtr<Partial[ParitalCount]>
|Parts Region - Pointer to start of parts region.
|Partial Array
|-
|-
|0x2c
|0x2c
|0x4
|0x4
|AsbPtr<u32[Parts Count]>
|u32
|Parts Index Array - Array of indices to parts
|Attachment Count
|-
|-
|0x30
|0x30
|0x4
|AsbPtr<Attachment>
|Attachment Array
|-
|0x34
|0x4
|AsbPtr<u32[Attachment Count]>
|Attachment Index Array - Array of indices to parts
|-
|0x38
|0x4
|0x4
|AsbPtr<Blackboard>
|AsbPtr<Blackboard>
|Blackboard
|Blackboard
|-
|-
|0x34
|0x3c
|0x4
|0x4
|AsbPtr<char>
|AsbPtr<char>
|String Pool
|String Pool
|-
|-
|0x38
|0x40
|0x4
|AsbPtr<AsbArray<Enum Relocation>>
|Enum Relocation Array
|-
|0x44
|0x4
|AsbPtr<AsbArray<State>>
|State Array
|-
|0x48
|0x4
|0x4
|u32
|u32
|Float Property Ex Count
|Float Property Ex Count
|-
|-
|0x3c
|0x4c
|0x4
|0x4
|AsbPtr<Float Property Ex[Float Property Ex Count]>
|AsbPtr<Float Property Ex[Float Property Ex Count]>
|Float Property Ex Array
|Float Property Ex Array
|-
|-
|0x40
|0x50
|0x4
|0x4
|u32
|u32
|Bone Blend Count
|Bone Blend Count
|-
|-
|0x44
|0x54
|0x4
|0x4
|AsbPtr<Bone Blend[Bone Blend Count]>
|AsbPtr<Bone Blend[Bone Blend Count]>
|Bone Blend Array
|Bone Blend Array
|-
|-
|0x48
|0x58
|0x4
|0x4
|u32
|u32
|Partial Skeleton Count
|Partial Skeleton Count
|-
|-
|0x4c
|0x5c
|0x4
|0x4
|AsbPtr<Partial Skeleton[Partial Skeleton Count]>
|AsbPtr<Partial Skeleton[Partial Skeleton Count]>
|Partial Skeleton Array
|Partial Skeleton Array
|-
|-
|0x50
|0x60
|0x4
|0x4
|u32
|u32
|String Pool Size
|String Pool Size
|-
|-
|0x54
|0x64
|0x4
|0x4
|AsbPtr<Transition Array>
|AsbPtr<Transition Array>
|Transition Array
|Transition Array
|-
|-
|0x58
|0x68
|0x4
|0x4
|AsbPtr<AsbArray<u32>>
|AsbPtr<AsbArray<u32>>
|Transition Partial Skeleton Array
|Transition Partial Skeleton Array
|-
|-
|0x5c
|0x6c
|0x4
|0x4
|AsbPtr<AsbArray<AsbString>>
|AsbPtr<AsbArray<AsbString>>
|Tag Array
|Tag Array
|-
|-
|0x60
|0x70
|0x4
|0x4
|AsbPtr<AsbArray<External Action>>
|AsbPtr<AsbArray<External Action>>
|External Action Array
|External Action Array
|-
|-
|0x64
|0x74
|0x4
|0x4
|AsbPtr<Exb>
|AsbPtr<Exb>
|Exb
|Exb
|-
|-
|0x68
|0x78
|0x4
|0x4
|u32
|u32
|Transition Group Array
|Transition Group Array
|-
|-
|0x6c
|0x7c
|0x4
|0x4
|AsbPtr<AsbArray<Material Blend>>
|AsbPtr<AsbArray<Material Blend>>
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=== Command ===
=== Command ===
Defines a command that can be played by an as::Controller. The command is composed of a behavior tree of elements.
Defines a command that can be evaluated by an as::Controller to set and play model animations. A command references the start of a behavior tree of elements to be evaluated at runtime. A simple update mode exists to continue playback of animation without always evaluating the command. A bypass mode also exists to play model animations directly from an as::Controller without a defined command.
{| class="wikitable"
{| class="wikitable"
|+Command (0x417)
|+Command (0x417)
Line 541: Line 629:
|0x04
|0x04
|u32
|u32
|Tag Entry Offset
|Tag Entry Offset (version 0x417+)
|-
|-
|0x08
|0x08
Line 596: Line 684:
|0x1
|0x1
|u8
|u8
|Parts Count
|Attachment Count
|-
|-
|0x3
|0x3
Line 626: Line 714:
|0x2
|0x2
|u16
|u16
|Base Parts Index Id
|Base Attachment Index Id
|-
|-
|0x12
|0x12
Line 1,695: Line 1,783:
|0x8
|0x8
|Property<float>
|Property<float>
|
|Selector Weight 0
|-
|-
|0x8
|0x8
|0x8
|0x8
|Property<float>
|Property<float>
|
|Selector Weight 1
|-
|-
|0x10
|0x10
Line 1,716: Line 1,804:
|ElementPlugs
|ElementPlugs
|Plugs
|Plugs
|}
=== Partial ===
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbString
|Name
|-
|0x4
|0x4
|u32
|Partial Skeleton Id
|-
|0x8
|0x4
|AsbString
|
|-
|0xc
|0x4
|u32
|
|}
=== Attachment ===
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x2
|u16
|Attachment Type
|-
|0x2
|0x2
|u16
|
|-
|0x4
|0x4
|AsbPtr<>
|Type specific data
|-
|0x8
|0x10
|Guid
|Guid
|}
=== Blackboard ===
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x8
|Blackboard Type Offset
|String
|-
|0x8
|0x8
|Blackboard Type Offset
|Int
|-
|0x10
|0x8
|Blackboard Type Offset
|UInt
|-
|0x18
|0x8
|Blackboard Type Offset
|Float
|-
|0x20
|0x8
|Blackboard Type Offset
|Bool
|-
|0x28
|0x8
|Blackboard Type Offset
|Vector3f
|-
|0x30
|0x8
|Blackboard Type Offset
|Pointer
|-
|0x38
|0x4 * N
|Blackboard Entry
|Entry Array
|-
|
|
|
|Default Value Region
|}
==== Blackboard Type Offset ====
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x2
|u16
|Count
|-
|0x2
|0x2
|u16
|Entry Base Index
|-
|0x4
|0x2
|u16
|Default Value Base Offset
|-
|0x6
|0x2
|u16
|
|}
==== Blackboard Entry ====
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbString : 24
|Name
|-
|
|
|u32 : 7
|Extra Info Index
|-
|
|
|u32 : 1
|Is Extra Info
|}
=== Enum Relocation ===
This feature appears to be for applications that want to be able to change enum class definitions without updating all the relevant asb files. Applications can choose to bake the enum values, in which this section is omitted, but the class name and enum value name will still be emitted to the string pool, unreferenced.
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbPtr<s32>
|Value to replace
|-
|0x4
|0x4
|AsbString
|Enum Class Name
|-
|0x8
|0x4
|AsbString
|Enum Value Name
|}
=== State ===
=== Float Property Ex ===
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x8
|Property<float>
|Value
|-
|0x8
|0x4
|u32
|Curve Type
|-
|0xc
|0xc
|float[3]
|Curve Data
|-
|0x18
|0x4
|float
|Min
|-
|0x1c
|0x4
|float
|Max
|}
=== Bone Blend ===
=== Partial Skeleton ===
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbPtr<Partial Bone[Partial Bone Count]>
|Partial Bone Array
|-
|0x4
|0x4
|AsbString
|Partial Skeleton Name
|-
|0x8
|0x4
|u32
|Partial Bone Count
|}
==== Partial Bone ====
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbString
|Bone Name
|-
|0x4
|0x2
|s16
|Bind Flags
|-
|0x6
|0x1
|u8
|Is Recursive (recursively adds all child bones)
|-
|0x7
|0x1
|u8
|
|}
=== Transition ===
=== External Action ===
Used to call "external actions". In ModuleSystem titles this appears to typically correspond to an xlink command.
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbString
|Type?
|-
|0x4
|0x4
|AsbString
|Slot?
|-
|0x8
|0x4
|AsbString
|Action
|}
=== Material Blend ===
Blend weight for material animations.
{| class="wikitable"
|+
!Offset
!Size
!Type
!Description
|-
|0x0
|0x4
|AsbString
|Name
|-
|0x4
|0x4
|float
|Weight
|}
|}
[[Category:File formats]]
[[Category:File formats]]
Retrieved from "https://epd.zeldamods.org/wiki/ASB"