Trying something that will probably never happen

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

bak/body_follows_head_modifier.gd

@@ -0,0 +1,45 @@
+@tool
+
+class_name BodyFollowsHead
+extends SkeletonModifier3D
+
+@export_enum(" ") var head: String
+@export_enum(" ") var hips: String
+
+func _validate_property(property: Dictionary) -> void:
+	if property.name == "head":
+		var skeleton: Skeleton3D = get_skeleton()
+		if skeleton:
+			property.hint = PROPERTY_HINT_ENUM
+			property.hint_string = skeleton.get_concatenated_bone_names()
+	if property.name == "hips":
+		var skeleton: Skeleton3D = get_skeleton()
+		if skeleton:
+			property.hint = PROPERTY_HINT_ENUM
+			property.hint_string = skeleton.get_concatenated_bone_names()
+
+func _process_modification() -> void:
+	var skeleton: Skeleton3D = get_skeleton()
+	if !skeleton:
+		return
+	var head_idx: int = skeleton.find_bone(head)
+	var head_pose: Transform3D = skeleton.get_bone_global_pose(head_idx)
+	var hips_idx: int = skeleton.find_bone(hips)
+	var hips_pose: Transform3D = skeleton.get_bone_global_pose(hips_idx)
+
+	var new_basis: Basis
+	new_basis.y = Vector3.UP
+
+#
+	#var hips_basis: Basis = hips_pose.basis
+	#var head_basis: Basis = head_pose.basis
+	#var head_yaw = head_basis.get_euler().y  # Y-axis rotation in radians
+	#var hips_euler = hips_basis.get_euler()
+	#var hips_yaw = hips_euler.x
+	#var new_yaw = lerp_angle(hips_yaw, head_yaw, 100)
+	#hips_euler.x = new_yaw
+	#hips_basis = Basis.from_euler(hips_euler)
+
+	# Apply the new transform back to the skeleton
+	hips_pose.basis = hips_basis
+	skeleton.set_bone_global_pose(hips_idx, hips_pose)