From de29bffe159d40ead33a42e00a9544d17a187554 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jens=20M=C3=B6nig?= <jens@moenig.org>
Date: Fri, 7 Jul 2017 16:06:46 +0200
Subject: [PATCH] confine turtle direction readout to 0-360 degrees

addresses a bug report from Cynthia Solomon
---
 history.txt | 1 +
 morphic.js  | 4 ++--
 objects.js  | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/history.txt b/history.txt
index db068f33..7ea8a40b 100755
--- a/history.txt
+++ b/history.txt
@@ -3509,6 +3509,7 @@ Fixes:
 ------
 * Objects, GUI, Store: tweak naming of instantiating to “clone”, enable inheritance by default
 * Objects, GUI: run “When I start as clone” scripts when manually cloning a sprite, only position at hand pointer if no such scripts exist 
+* Morphic, Objects: confine turtle direction readout to 0-360 degrees, thanks, Cynthia for the bug report!!
 
 
 Features:
diff --git a/morphic.js b/morphic.js
index b6259eff..36807ec5 100644
--- a/morphic.js
+++ b/morphic.js
@@ -1161,7 +1161,7 @@
 
 /*global window, HTMLCanvasElement, FileReader, Audio, FileList*/
 
-var morphicVersion = '2017-July-04';
+var morphicVersion = '2017-July-07';
 var modules = {}; // keep track of additional loaded modules
 var useBlurredShadows = getBlurredShadowSupport(); // check for Chrome-bug
 
@@ -4838,7 +4838,7 @@ PenMorph.prototype.drawNew = function (facing) {
 // PenMorph access:
 
 PenMorph.prototype.setHeading = function (degrees) {
-    this.heading = parseFloat(degrees) % 360;
+    this.heading = ((+degrees % 360) + 360) % 360;
     this.drawNew();
     this.changed();
 };
diff --git a/objects.js b/objects.js
index b79fcec0..e5c62bdd 100644
--- a/objects.js
+++ b/objects.js
@@ -4262,7 +4262,7 @@ SpriteMorph.prototype.setHeading = function (degrees, noShadow) {
         this.silentGotoXY(x, y, true); // just me
         this.positionTalkBubble();
     } else {
-        this.heading = parseFloat(degrees) % 360;
+        this.heading = ((+degrees % 360) + 360) % 360;
     }
 
     // propagate to my parts