class_name WilliamSkin 
extends Node3D


@export_category("Tracking")
@export var head_influence: float = 0.5
@export var eye_influence: float = 1.0


@onready var _animation_tree: AnimationTree = $AnimationTree
@onready var _head: TrackingBone3D_head = $base/rig/Skeleton3D/head
@onready var _eye_L: TrackingBone3D = $base/rig/Skeleton3D/eye_L
@onready var _eye_R: TrackingBone3D = $base/rig/Skeleton3D/eye_R


# TODO: eye tracking
func set_eyes_target(target: Vector3) -> void:
	for eye in [ _eye_L, _eye_R ]:
		eye.target = target
		eye.active = target != Vector3.ZERO
		eye.influence = eye_influence


# TODO: head tracking
func set_head_target(target: Vector3) -> void:
	_head.target = target
	_head.active = target != Vector3.ZERO
	_head.influence = head_influence


# manage talking and expressions
func talk() -> void:
	_animation_tree.set("parameters/motion/transition_request", "talk")


# manage vectored movement
func current_state() -> String:
	return _animation_tree.get("parameters/motion/current_state")


func set_hips_direction(direction: float) -> void:
	_animation_tree.set("parameters/hips_direction/blend_position", clamp(direction, -PI / 2, PI / 2))


func get_hips_direction() -> float:
	return _animation_tree.get("parameters/hips_direction/blend_position")


func pose() -> void:
	_animation_tree.set("parameters/motion/transition_request", "pose")


func idle() -> void:
	_animation_tree.set("parameters/motion/transition_request", "idle")


func move_forward() -> void:
	_animation_tree.set("parameters/motion/transition_request", "forward")


func move_backward() -> void:
	_animation_tree.set("parameters/motion/transition_request", "backward")


func movement_speed(speed: float) -> void:
	_animation_tree.set("parameters/forward/blend_position", speed)
	_animation_tree.set("parameters/backward/blend_position", speed)


func jump() -> void:
	_animation_tree.set("parameters/motion/transition_request", "fall")


func fall() -> void:
	_animation_tree.set("parameters/motion/transition_request", "fall")


func landing() -> void:
	_animation_tree.set("parameters/motion/transition_request", "landing")