bas

bas files each represent an animation that can be called by an actor or cutscene. They contain a reference to an animation name, but not the animation file itself. They can be found at Actor/AS/{EventName}/{AnimationSequenceName}.bas in beventpacks and TitleBG.pack/Actor/AS, and Actor/AS/{AnimationSequenceName}.bas in bactorpacks.

Layout

Each bas file is made up of one list of elements, named Elements. Each element (Element0, Element1, etc) can be either a test to figure out what animation to play, or a call to play the animation.

Parameters

All nodes have Parameters, which determine what kind of node they are. They can be a control node, which helps decide which animation to play, or an animation node, which actually plays the animation.

Key	Key Type	Description	Node Type	Default value
TypeIndex	int	Type of node the Element is. Known types are listed below the table.	-	-
NoSync	bool	-	Control	-
JudgeOnce	bool	Tells the game to skip evaluating this node (and use the previous result) if the input value has not changed since the last time the node was run.	Control	False
InputLimit	float	-	Control	-
FileName	str64	Name of the animation to play	Animation	-
Morph	int	Time to blend the previous animation into this one. Appears to be measured in frames.	Animation	-

Parameter TypeIndex

Nodes with Blender are generally used to perform the same checks as those with Selector in the name, with a key difference: Blender nodes may evaluate multiple cases as true, and will blend the resulting animations together. Selector nodes will choose only the first case that evaluates to true.^[check]

Index	Name	Description	Type
0	AbsTemperatureBlender	Current world temperature. Evaluated by float range.	Control
1	AbsTemperatureSelector	Current world temperature. Evaluated by float range.	Control
2	ArmorSelector	What armor is currently equipped. Used only in Player_Wait.bas. Only observed working values are NoUpper, NoLower, NoAll. Does not appear to accept armor actor names.	Control
3	ArrowSelector	Seems to check what arrow Link has equipped. However, the game only ever uses a StringArray of Empty and a default case. This is used to check whether Link has arrows in his bow, to determine how to blend his animations or to play different ones.	Control
4	AttentionSelector	-	-
5	BoneBlender	-	-
6	BoneVisibilityAsset	-	-
7	BoolSelector	Boolean evaluator - See #BitIndex	Control
8	ButtonSelector	-	-
9	ChargeSelector	-	-
10	ClearMatAnmAsset	-	-
11	ComboSelector	-	-
12	DiffAngleYBlender	-	-
13	DiffAngleYSelector	-	-
14	DirectionAngleBlender	Compares to the movement analog stick's current orientation, in degrees, in counter-clockwise fashion. Accepts -359 to 360. (e.g. 270 and -90 both point directly to the right). Evaluated by float range.	Control
15	DirectionAngleSelector	Compares to the movement analog stick's current orientation, in degrees, in counter-clockwise fashion. Accepts -359 to 360. (e.g. 270 and -90 both point directly to the right). Evaluated by float range.	Control
16	DistanceBlender	Compares distance between Link and his current locked target. Evaluated by float range.	Control
17	DistanceSelector	Compares distance between Link and his current locked target. Evaluated by float range.	Control
18	DungeonClearSelector	-	-
19	DungeonNumberSelector	-	-
20	EmotionSelector	-	-
21	EventFlagSelector	Checks whether a GameData flag is true. The StringArray defines the flags to be checked. Known to accept 1 child plus a default case, but in a single instance there's no default case. In another instance, both strings are flags. If both are true, the first case evaluated as true will be run.	Control
22	EyeSelector	-	-
23	EyebrowSelector	-	-
24	FaceEmotionSelector	-	-
25	FootBLLifeSelector	-	-
26	FootBRLifeSelector	-	-
27	FootFLLifeSelector	-	-
28	FootFRLifeSelector	-	-
29	ForwardBentBlender	-	-
30	ForwardBentSelector	-	-
31	GearSelector	-	-
32	GenerationSelector	-	-
33	GrabTypeSelector	Compares the LiftType of the actor that is being grabbed/lifted (from its bgparamlist). Known to accept as many as 24 children and a default case.	Control
34	GroundNormalBlender	-	-
35	GroundNormalSelector	-	-
36	GroundNormalSideBlender	-	-
37	GroundNormalSideSelector	-	-
38	MaskSelector	Checks the MaskType parameter of the currently equipped Head armor. Its children reference other elements to jump to if a matching MaskType is found, and a StringArray in its Extend determine the MaskType(s) to check for.	Control
39	MatVisibilityAsset	-	-
40	MouthSelector	-	-
41	NoAnmAsset	Play no animation. Used to cancel evaluation.	Animation
42	NoLoopStickAngleBlender	-	-
43	NoLoopStickAngleSelector	-	-
44	NodePosSelector	Compares name of a bone, takes StrRef of the bone name. Unknown how it decides which bone name to compare the StrRef to. Can be paired with an axis name (e.g. Toe_L,Z) to measure value on that axis. When used in this way, the node chooses the child corresponding to the highest value among those measured. When no axis name is given, the vector to the origin is measured. [check]	Control
45	PersonalitySelector	-	-
46	PostureSelector	-	-
47	PreASSelector	Compares last played animation name, takes StrRef of animation name. Known to accept two Children to test against, plus a default case, but might accept more or less.	Control
48	PreExclusionRandomSelector	-	-
49	RandomSelector	Picks a random node from the given nodes.[check]	Control
50	RideSelector	Compares the profile of the mount the actor is currently riding. Known to accept one Child, plus a default case, but might accept more or less.[check]	Control
51	RightStickAngleBlender	-	-
52	RightStickAngleSelector	-	-
53	RightStickValueBlender	-	-
54	RightStickValueSelector	-	-
55	RightStickXBlender	-	-
56	RightStickXSelector	-	-
57	RightStickYBlender	-	-
58	RightStickYSelector	-	-
59	SelfHeightSelector	-	-
60	SelfWeightSelector	-	-
61	SequencePlayContainer	Float comparison - Unknown	Control
62	ShaderParamAsset	Plays material animation, takes StrRef of the animation name. Its Extend uses a secondary animation name for unknown purpose.	Animation
63	ShaderParamColorAsset	-	-
64	ShaderParamTexSRTAsset	Plays texture transform animation, takes StrRef of the animation name.	Animation
65	SizeBlender	-	-
66	SizeSelector	-	-
67	SkeltalAsset	Plays model animation, takes StrRef of the animation name.	Animation
68	SpeedBlender	Compares actor's current movement speed. Evaluated by float range.	Control
69	SpeedSelector	Compares actor's current movement speed. Evaluated by float range.	Control
70	StickAngleBlender	Compares the movement analog stick's current orientation, in degrees, in counter-clockwise fashion. Accepts -359 to 360. (e.g. 270 and -90 both point directly to the right). Evaluated by float range.	Control
71	StickAngleSelector	Compares the movement analog stick's current orientation, in degrees, in counter-clockwise fashion. Accepts -359 to 360. (e.g. 270 and -90 both point directly to the right). Evaluated by float range.	Control
72	StickValueBlender	Range evaluation - Unknown	Control
73	StickValueSelector	-	-
74	StickXBlender	Compares the movement analog stick's current horizontal position, as a float value. Fully left is -1.0, fully right is 1.0.	Control
75	StickXSelector	Compares the movement analog stick's current horizontal position, as a float value. Fully left is -1.0, fully right is 1.0.	Control
76	StickYBlender	Compares the movement analog stick's current vertical position, as a float value. Fully down is -1.0, fully up is 1.0.	Control
77	StickYSelector	Compares the movement analog stick's current vertical position, as a float value. Fully down is -1.0, fully up is 1.0.	Control
78	StressBlender	-	-
79	StressSelector	-	-
80	SyncPlayContainer	Synchronously plays multiple child elements	Animation
81	TemperatureBlender	-	-
82	TemperatureSelector	Range evaluation - Unknown	Control
83	TexturePatternAsset	-	-
84	TimeSelector	-	-
85	TiredBlender	-	-
86	TiredSelector	-	-
87	UseItemSelector	-	-
88	UserAngle2Blender	-	-
89	UserAngle2Selector	-	-
90	UserAngleBlender	-	-
91	UserAngleSelector	-	-
92	UserSpeedBlender	-	-
93	UserSpeedSelector	-	-
94	VariationSelector	-	-
95	WallAngleBlender	-	-
96	WallAngleSelector	-	-
97	WeaponDetailSelector	Compares actor's equipped weapon subtype (from its bgparamlist [ProfileUser] WeaponSubtype value), takes StrRef of weapon subtype name	Control
98	WeaponSelector	Compares actor's equipped weapon profile (from its bxml ProfileUser value), takes StrRef of weapon profile name	Control
99	WeatherSelector	-	-
100	WeightBlender	-	-
101	WeightSelector	-	-
102	WindVelocityBlender	-	-
103	YSpeedBlender	-	-
104	YSpeedSelector	-	-
105	ZEx00ExposureBlender	-	-
106	ZEx00ExposureSelector	-	-

Children

Control nodes will have Children, in addition to Parameters, which determine which Element to go to after the control node is evaluated. The properties of Children will be named Child0, Child1, etc, and each will have a single integer value, which will correspond to the Element number. e.g. Child0: 7 points to Element7.

Extend

All nodes have an Extend, which contains specific details about the node. Control node Extends will contain details about the comparison being performed, while animation nodes will contain information about the animation being played, such as: during which frames of the animation a weapon will deal damage if it hits something, when user input is ignored, when to draw weapon trails through the air for attack animations, etc.

Typed Array

A list of variables of a given type to use for various control comparisons. Corresponds directly to the Children of the node. i.e. if Value0 matches the value being compared against, the code will jump to the Element listed under Child0. If no comparison of a lower Child number has evaluated as true, automatically evaluates a Child whose value is "default" as true.

BitIndex

Used with BoolSelector Parameters. Also has TypeIndex, which are used to perform the check.

• 2 - Unknown (believed to check if Link has any armor equipped)
• 30 - Whether or not Link has a shield equipped.
• 33 - Unknown (believed to check if Link is tired)
• 37 - Whether IsBlunt is set to true in the equipped weapon’s bgparamlist
• 38 - Unknown (believed to check if the current weapon is on fire)
• 46 - Unknown (believed to check if Link is crouched)

Ranges

Used with control nodes that perform a Range evaluation. If the value being compared is above the Start value and below the End value, evaluates as true. Otherwise, moves on to the next value. (Unknown what happens if none of the Ranges evaluate to true, presumably game crash)

FrameCtrl

Used with animation nodes. The node itself is required, even if it is empty (i.e. none of the keys are specified)

Key	Type	Description	Default value
Rate	float	Speed at which to play the animation. Higher numbers are faster.	1.0
StartFrame	int	-	-
EndFrame	int	-	-
LoopStopCount	int	-	-
LoopStopCountRandom	int	-	-
UseGlobalFrame	bool	-	false
ReversePlay	bool	-	false
Connect	int	The only observed values are 1, 2, and 3.	-
AnmLoop	int	The only observed values are 1 and 2.	-

TriggerEvents

Used with Parameter TypeIndex 67. Possibly used with other animation node TypeIndexes, but none have so far been observed. Events which are triggered during this animation.

Key	Type	Description	Default value
TypeIndex	int	Which type of event to fire. Known events are detailed below	-
Frame	int	Which frame to fire the event on, relative to the frame numbers of the animation. Can be negative.	-
Value	strRef	-	-

Known TypeIndex values:

• 0 - Defines the impact of attack animations. Known values are AttackSmall, AttackMiddle, and AttackLarge.
• 4 - Triggers the animation controller to transition back into the idle stance. The Frame value should be a few before the end of the actual animation, so that the controller can make the blending look natural.
• 7 - Call AS. Passes the strRef to the ASList to retrieve an AS file and starts evaluating it from Element0.
• 14 - Seems to indicate an enemy has entered a state of being airborne.
• 28 - Play audio. Only observed with PV%03d as the value, which corresponds to bfwav files in PlayerVoice.bars, but is believed to be able to play other audio files as well.

HoldEvents

Used with Parameter TypeIndex 67. Possibly used with other animation node TypeIndexes, but none have so far been observed. States that are entered into while the animation is playing.

Key	Type	Description	Default value
TypeIndex	int	Which type of event to fire. Known events are detailed below	-
StartFrame	int	Which frame to start the event on, relative to the frame numbers of the animation. Unknown if it can be negative.	-
EndFrame	int	Which frame to end the event on, relative to the frame numbers of the animation. A value of -1 is treated as the ending frame of the animation.	-
Value	strRef	-	-

Known TypeIndex values:

• 0 - Unknown
• 2 - Seems to determine when some attacks (entries in Player_CutJumpSt and others) will connect with targets. Removing TypeIndex 2 causes animations to play halfway through. TypeIndex 2 also tends to have a StartFrame somewhere near the middle of the animation, and an end frame of -1.0, indicating that it may be responsible for blending certain attack animations into one another, particularly those that loop or combine.
• 3 - Defines when an attack will deal damage. Value is the damage type. Left: slashing. Stab: piercing. Lower: blunt. ^[check]
• 17 - Unknown
• 25 - Unknown
• 45 - Defines when to accept input to start the next attack.
• 48 - Defines when to display the trails in the air during an attack.