preserve the sprite's rotation point when taking a video-snap on it

HISTORY.md

@@ -6,10 +6,12 @@
 * **Notable Fixes:**
     * allowed reserved JS object property names as variable names in Snap (e.g. "constructor")
     * disabled direct editing of list watchers for non-literal typed lists (such as costumes) in speech bubbles and prompters
+    * now preserving the sprite's rotation point when taking a video-snap on it
 * **Translation Updates:**
 
 ### 2019-11-14
-* disabled direct editing of list watchers for non-literal typed lists (such as costumes) in speech bubbles and prompters
+* lists: disabled direct editing of list watchers for non-literal typed lists (such as costumes) in speech bubbles and prompters
+* objects: preserve the sprite's rotation point when taking a video-snap on it
 
 ### 2019-11-13
 * new dev version

snap.html

@@ -8,7 +8,7 @@
         <script type="text/javascript" src="src/widgets.js?version=2019-10-16"></script>
         <script type="text/javascript" src="src/blocks.js?version=2019-11-12"></script>
         <script type="text/javascript" src="src/threads.js?version=2019-11-13"></script>
-        <script type="text/javascript" src="src/objects.js?version=2019-11-12"></script>
+        <script type="text/javascript" src="src/objects.js?version=2019-11-14"></script>
         <script type="text/javascript" src="src/gui.js?version=2019-11-13"></script>
         <script type="text/javascript" src="src/paint.js?version=2019-06-27"></script>
         <script type="text/javascript" src="src/lists.js?version=2019-11-14"></script>

src/objects.js

@@ -84,7 +84,7 @@ BlockEditorMorph, BlockDialogMorph, PrototypeHatBlockMorph,  BooleanSlotMorph,
 localize, TableMorph, TableFrameMorph, normalizeCanvas, VectorPaintEditorMorph,
 HandleMorph, AlignmentMorph, Process, XML_Element, WorldMap, copyCanvas*/
 
-modules.objects = '2019-November-12';
+modules.objects = '2019-November-14';
 
 var SpriteMorph;
 var StageMorph;
@@ -2055,17 +2055,18 @@ SpriteMorph.prototype.getImageData = function () {
     return this.imageData.pixels;
 };
 
-SpriteMorph.prototype.projectionSnap = function() {
+SpriteMorph.prototype.projectionSnap = function() { // +++
     var stage = this.parentThatIsA(StageMorph),
         center = this.center().subtract(stage.position())
             .divideBy(stage.scale),
         cst = this.costume || this.image,
-        w, h,
+        w, h, rot,
         offset,
         snap,
         ctx;
 
     if (cst instanceof Costume) {
+        rot = cst.rotationCenter.copy();
         cst = cst.contents;
         w = cst.width;
         h = cst.height;
@@ -2082,7 +2083,7 @@ SpriteMorph.prototype.projectionSnap = function() {
     ctx.drawImage(cst, 0, 0);
     ctx.globalCompositeOperation = 'source-in';
     ctx.drawImage(stage.projectionLayer(), -offset.x, -offset.y);
-    return new Costume(snap, this.newCostumeName(localize('snap')));
+    return new Costume(snap, this.newCostumeName(localize('snap')), rot);
 };
 
 // SpriteMorph block instantiation