From b42e7725632912780b50445c4aff2b2ffe41d9ac Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Mon, 27 Aug 2018 16:32:12 -0700
Subject: [PATCH] Mobject should update when an updater is added (by default at
 least)

---
 mobject/mobject.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mobject/mobject.py b/mobject/mobject.py
index 4e45009a..6b0c3f03 100644
--- a/mobject/mobject.py
+++ b/mobject/mobject.py
@@ -170,8 +170,11 @@ class Mobject(Container):
     def get_updaters(self):
         return self.updaters
 
-    def add_updater(self, update_function):
+    def add_updater(self, update_function, call_updater=True):
         self.updaters.append(update_function)
+        if call_updater:
+            self.update(0)
+        return self
 
     def remove_updater(self, update_function):
         while update_function in self.updaters: