william.gd

   1 class_name WilliamSkin
   2 extends Node3D
   3
   4
   5 @onready var animation_tree: AnimationTree = $AnimationTree
   6 @onready var skeleton: Skeleton3D = $base/rig/Skeleton3D
   7
   8
   9 # get tracking bones from skeleton
  10 var _eye_left_index  := -1
  11 var _eye_right_index := -1
  12 var _eye_track_target: Vector3 = Vector3.ZERO
  13
  14 var _head_index := -1
  15 var _head_track_target: Vector3 = Vector3.ZERO
  16
  17
  18 func _ready() -> void:
  19         _eye_left_index = skeleton.find_bone("DEF-eye.L")
  20         _eye_right_index = skeleton.find_bone("DEF-eye.R")
  21         _head_index = skeleton.find_bone("DEF-spine.006")
  22
  23
  24 func _process(_delta: float) -> void:
  25         if _eye_track_target != Vector3.ZERO:
  26                 _process_eyes_tracking()
  27         if _head_track_target != Vector3.ZERO:
  28                 _process_head_tracking()
  29
  30
  31 # manage eye tracking
  32 func set_eyes_target(target: Vector3) -> void:
  33         _eye_track_target = target
  34
  35
  36 func _process_eyes_tracking() -> void:
  37         # TODO: this is broken!
  38         for i in [_eye_left_index, _eye_right_index]:
  39                 var bone_pose: Transform3D = skeleton.global_transform * skeleton.get_bone_global_pose(i)
  40                 bone_pose = bone_pose.looking_at(_eye_track_target)
  41                 var axis: Vector3 = bone_pose.basis.x
  42                 bone_pose = bone_pose.rotated_local(axis, -PI/2)
  43                 #skeleton.set_bone_global_pose_override(i, skeleton.global_transform.affine_inverse() * bone_pose, 1, true)
  44                 # ^^^ this sets the bone position relative to its rest position, not after animation!
  45
  46
  47 # TODO: manage head tracking
  48 func set_head_target(target: Vector3) -> void:
  49         _head_track_target = target
  50
  51
  52 func _process_head_tracking() -> void:
  53         pass
  54
  55
  56 # manage talking and expressions
  57 func talk() -> void:
  58         animation_tree.set("parameters/motion/transition_request", "talk")
  59
  60
  61 # manage vectored movement
  62 func current_state() -> String:
  63         return animation_tree.get("parameters/motion/current_state")
  64
  65
  66 func set_hips_direction(direction: float) -> void:
  67         animation_tree.set("parameters/hips_direction/blend_position", clamp(direction, -PI / 2, PI / 2))
  68
  69
  70 func get_hips_direction() -> float:
  71         return animation_tree.get("parameters/hips_direction/blend_position")
  72
  73
  74 func pose() -> void:
  75         animation_tree.set("parameters/motion/transition_request", "pose")
  76
  77
  78 func idle() -> void:
  79         animation_tree.set("parameters/motion/transition_request", "idle")
  80
  81
  82 func move_forward() -> void:
  83         animation_tree.set("parameters/motion/transition_request", "forward")
  84
  85
  86 func move_backward() -> void:
  87         animation_tree.set("parameters/motion/transition_request", "backward")
  88
  89
  90 func movement_speed(speed: float) -> void:
  91         animation_tree.set("parameters/forward/blend_position", speed)
  92         animation_tree.set("parameters/backward/blend_position", speed)
  93
  94
  95 func jump() -> void:
  96         animation_tree.set("parameters/motion/transition_request", "fall")
  97
  98
  99 func fall() -> void:
 100         animation_tree.set("parameters/motion/transition_request", "fall")
 101
 102
 103 func landing() -> void:
 104         animation_tree.set("parameters/motion/transition_request", "landing")