Missing things?

Ingame/BodyParts/Arm.tscn

@@ -30,7 +30,7 @@ func push(body):
 [sub_resource type="SphereShape" id=4]
 
 [sub_resource type="SphereShape" id=3]
-radius = 0.803016
+radius = 0.591769
 
 [node name="Arm" instance=ExtResource( 1 )]
 script = SubResource( 1 )

Ingame/BodyParts/BodyPart.gd

@@ -9,13 +9,26 @@ onready var physics_shape = get_node("PartCollider")
 
 export(int) var key
 
+var setup_done = false
+
 
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
 	assert(base is BodyBase)
 	
+	
+
+
+func _process(delta: float) -> void:
+	if not setup_done:
+		var translation = physics_shape.to_global(physics_shape.translation)
+		physics_shape.translation = Vector3.ZERO
+		
 		remove_child(physics_shape)
-	base.call_deferred("add_child", physics_shape)
+		base.add_child(physics_shape)
+		
+		physics_shape.global_transform.origin = translation
+		setup_done = true
 
 
 func _unhandled_input(event):

project.godot

@@ -18,10 +18,16 @@ _global_script_classes=[ {
 "class": "BodyPart",
 "language": "GDScript",
 "path": "res://Ingame/BodyParts/BodyPart.gd"
+}, {
+"base": "BodyPart",
+"class": "PushingBodyPart",
+"language": "GDScript",
+"path": "res://Ingame/BodyParts/PushingBodyPart.gd"
 } ]
 _global_script_class_icons={
 "BodyBase": "",
-"BodyPart": ""
+"BodyPart": "",
+"PushingBodyPart": ""
 }
 
 [application]