From b4db57dc94c5e59d0134ccfa8557cbd3dbdf912a Mon Sep 17 00:00:00 2001
From: jmoenig <jens@moenig.org>
Date: Wed, 7 Aug 2013 18:00:23 +0200
Subject: Nested Sprite Motion

---
 history.txt | 1 +
 objects.js  | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/history.txt b/history.txt
index 88ace3c..f76d5b7 100755
--- a/history.txt
+++ b/history.txt
@@ -1857,3 +1857,4 @@ ______
 * Objects, GUI: Sprite Nesting preliminaries
 * Objects: Fixed stage costume scaling & misplacing bug. Thanks, Josh, for the report!
 * Objects, GUI: Sprite Nesting GUI
+* Objects: Nested Sprite Motion
diff --git a/objects.js b/objects.js
index 095f644..e1f054d 100644
--- a/objects.js
+++ b/objects.js
@@ -2624,6 +2624,14 @@ SpriteMorph.prototype.drawLine = function (start, dest) {
 
 // SpriteMorph motion
 
+SpriteMorph.prototype.moveBy = function (delta) {
+    // override the inherited default to make sure my parts follow
+    SpriteMorph.uber.moveBy.call(this, delta);
+    this.parts.forEach(function (part) {
+        part.moveBy(delta);
+    });
+};
+
 SpriteMorph.prototype.forward = function (steps) {
     var start = this.rotationCenter(),
         dest,
-- 
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