Merge pull request #160 from Strilanc/dev

Dev

package.json

@@ -3,7 +3,7 @@
   "title": "Quirk",
   "description": "An HTML5 toy for exploring and understanding small quantum circuits.",
   "license": "Apache-2.0",
-  "version": "1.2.0",
+  "version": "1.4.0",
   "homepage": "https://github.com/Strilanc/Quirk",
   "bugs": {
     "url": "https://github.com/Strilanc/Quirk/issues"

src/main.js

@@ -32,10 +32,13 @@ canvas.width = canvasDiv.clientWidth;
 canvas.height = window.innerHeight*0.9;
 let haveLoaded = false;
 let historyPusher = new HistoryPusher();
-let semiStableRng = new RestartableRng();
-setInterval(() => {
-    semiStableRng = new RestartableRng();
-}, Config.SEMI_STABLE_RANDOM_VALUE_LIFETIME_MILLIS*0.95);
+let semiStableRng = {cur: new RestartableRng()};
+let cycleRng;
+cycleRng = () => {
+    semiStableRng.cur = new RestartableRng();
+    setTimeout(cycleRng, Config.SEMI_STABLE_RANDOM_VALUE_LIFETIME_MILLIS*0.99);
+};
+cycleRng();
 
 //noinspection JSValidateTypes
 /** @type {!HTMLDivElement} */
@@ -143,7 +146,7 @@ const redrawNow = () => {
     let size = desiredCanvasSizeFor(shown);
     canvas.width = size.w;
     canvas.height = size.h;
-    let painter = new Painter(canvas, semiStableRng.restarted());
+    let painter = new Painter(canvas, semiStableRng.cur.restarted());
     shown.updateArea(painter.paintableArea());
     shown.paint(painter, stats, isShiftHeld);
     painter.paintDeferred();