Add Shop spawn station

UI/shop_station_button.gd

@@ -19,6 +19,16 @@ func _ready() -> void:
 
 func _on_button_pressed() -> void:
 	print("ShopStationButton buy ", station_name)
+	_buy_station()
+	
+func _buy_station() -> void:
+	GameManager.money -= cost
+	var transform = Helper.get_snapped_transform(XRHelpers.get_xr_origin(self).get_node_or_null("PlayerBody"))
+	var forward: Vector3 = -transform.basis.z.normalized()
+	# TODO: Don't move up. Fix scenes.
+	transform.origin += (forward * 0.6) + Vector3(0, 0.5, 0)
+	var instance = NetworkManager.spawn_item(station_scene.resource_path, transform)
+	Signals.station_bought.emit(instance)
 	
 func _process(_delta: float) -> void:
 	button.disabled = GameManager.money < cost