* Stop rendering if not in simulator tab and python not running

public/arena.html

@@ -114,7 +114,7 @@
       }
     }
   </script>
-  <script src="js/babylon.js?v=cfeb42f1"></script>
+  <script src="js/babylon.js?v=35120996"></script>
   <script src="js/botsPanel.js?v=dedf08f0"></script>
   <script src="js/arenaPanel.js?v=0cf8c5d9"></script>
   <script src="js/arena.js?v=156022dd"></script>

public/builder.html

@@ -99,8 +99,8 @@
     robot.player = 'single';
     robots.push(robot);
   </script>
-  <script src="js/babylon.js?v=cfeb42f1"></script>
-  <script src="js/simPanel.js?v=2a4d903c"></script>
+  <script src="js/babylon.js?v=35120996"></script>
+  <script src="js/simPanel.js?v=4675cb7c"></script>
   <script src="js/builtInImages.js?v=e9621db6"></script>
   <script src="js/builder.js?v=2646c124"></script>
 

public/configurator.html

@@ -97,8 +97,8 @@
     robot.player = 'single';
     robots.push(robot);
   </script>
-  <script src="js/babylon.js?v=cfeb42f1"></script>
-  <script src="js/simPanel.js?v=2a4d903c"></script>
+  <script src="js/babylon.js?v=35120996"></script>
+  <script src="js/simPanel.js?v=4675cb7c"></script>
   <script src="js/builtInImages.js?v=e9621db6"></script>
   <script src="js/configurator.js?v=ecca0287"></script>
 

public/index.html

@@ -184,11 +184,11 @@
     robot.player = 'single';
     robots.push(robot);
   </script>
-  <script src="js/babylon.js?v=cfeb42f1"></script>
+  <script src="js/babylon.js?v=35120996"></script>
   <script src="js/blocklyPanel.js?v=d21cc31d"></script>
   <script src="js/pythonPanel.js?v=ae836351"></script>
   <script src="js/pythonLibPanel.js?v=01359988"></script>
-  <script src="js/simPanel.js?v=2a4d903c"></script>
+  <script src="js/simPanel.js?v=4675cb7c"></script>
   <script src="js/main.js?v=6017d223"></script>
 
   <script>

public/js/babylon.js

@@ -18,9 +18,9 @@ var babylon = new function() {
     });
 
     // Register a render loop to repeatedly render the scene
-    self.engine.runRenderLoop(function () {
-      self.scene.render();
-    });
+    // self.engine.runRenderLoop(function () {
+    //   self.scene.render();
+    // });
 
     // Watch for browser/canvas resize events
     window.addEventListener('resize', function () {
@@ -113,7 +113,7 @@ var babylon = new function() {
     let up = self.cameraArc.upVector;
     let mode = self.cameraMode;
 
-    self.engine.stopRenderLoop(self.engine._activeRenderLoops[0]);
+    self.engine.stopRenderLoop();
     self.scene.dispose();
 
     self.scene = self.createScene();
@@ -127,9 +127,11 @@ var babylon = new function() {
     self.cameraArc.target = target;
 
     self.loadMeshes(self.scene);
-    self.engine.runRenderLoop(function () {
-      self.scene.render();
-    });
+    if (main.$navs.siblings('.active').attr('id') == 'navSim') {
+      self.engine.runRenderLoop(function () {
+        self.scene.render();
+      });
+    }
   };
 
   // Remove all RTT cameras

public/js/simPanel.js

@@ -75,6 +75,21 @@ var simPanel = new function() {
     self.updateSensorsPanelTimer = setInterval(self.updateSensorsPanel, 250);
   };
 
+  // Run when the simPanel in inactive
+  this.onInActive = function() {
+    if (! skulpt.running) {
+      babylon.engine.stopRenderLoop();
+    }
+  };
+
+  // Run when the simPanel in active
+  this.onActive = function() {
+    if (babylon.engine._activeRenderLoops.length == 0)
+    babylon.engine.runRenderLoop(function(){
+      babylon.scene.render();
+    });
+  };
+
   // Setup virtual joystick
   this.setupJoystick = function() {
     function moveSteering(steering, speed) {