From 41b4483fd17c775243c355e09656c1e2869b06c7 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grantsanderson7@gmail.com>
Date: Fri, 24 Mar 2017 17:27:09 -0700
Subject: [PATCH] Made Mobject.copy somewhat lighter-weight

---
 mobject/mobject.py            | 12 ++++++++++--
 mobject/vectorized_mobject.py |  4 +---
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/mobject/mobject.py b/mobject/mobject.py
index b8339659..6305d15d 100644
--- a/mobject/mobject.py
+++ b/mobject/mobject.py
@@ -1,8 +1,8 @@
 import numpy as np
 import operator as op
 import os
+import copy
 from PIL import Image
-from copy import deepcopy
 from colour import Color
 
 from helpers import *
@@ -97,7 +97,15 @@ class Mobject(object):
         )
 
     def copy(self):
-        return deepcopy(self)
+        copy_mobject = copy.copy(self)
+        copy_mobject.points = np.array(self.points)
+        copy_mobject.submobjects = [
+            submob.copy() for submob in self.submobjects
+        ]
+        return copy_mobject
+        
+    def deepcopy(self):
+        return copy.deepcopy(self)
 
     def generate_target(self):
         self.target = None #Prevent exponential explosion
diff --git a/mobject/vectorized_mobject.py b/mobject/vectorized_mobject.py
index 27a6452c..c6fb8be6 100644
--- a/mobject/vectorized_mobject.py
+++ b/mobject/vectorized_mobject.py
@@ -200,9 +200,7 @@ class VMobject(Mobject):
         but will be tracked in a separate special list for when
         it comes time to display.
         """
-        subpath_mobject = self.copy()#TODO, better way?
-        subpath_mobject.submobjects = []
-        # subpath_mobject = self.__class__()
+        subpath_mobject = VMobject()
         subpath_mobject.is_subpath = True
         subpath_mobject.set_points(points)
         self.add(subpath_mobject)