expose demo instance externally

liabru · liabru · commit a9122ed48846 · 2016-01-14T23:42:26.000Z
diff --git a/demo/index.html b/demo/index.html
@@ -26,11 +26,11 @@
         <script type="text/javascript" src="./js/Examples.js"></script>
         <script type="text/javascript" src="./js/Demo.js"></script>
 
-        <title>Matter.js Demo (Edge Build)</title>
+        <title>Matter.js Demo</title>
     </head>
     <body>
         <div class="container">
-            <h1>Matter.js Demo (Edge Build)</h1>
+            <h1>Matter.js Demo</h1>
             <p class="nav nav-links"><a href="./mobile.html">Mobile Demo</a> <span class="nav-sep">&middot;</span> <a href="http://brm.io/matter-js/">Project page</a> <span class="nav-sep">&middot;</span> <a href="https://github.com/liabru/matter-js">GitHub</a> <span class="nav-sep">&middot;</span> <a href="http://twitter.com/liabru">@liabru</a></p>
             <div class="controls-container">
                 <select id="demo-select">
diff --git a/demo/js/Demo.js b/demo/js/Demo.js
@@ -53,6 +53,7 @@
 
     Demo.init = function() {
         var demo = Demo.create();
+        Matter.Demo._demo = demo;
 
         // get container element for the canvas
         demo.container = document.getElementById('canvas-container');
@@ -193,7 +194,10 @@
         demoSelect.addEventListener('change', function(e) {
             Demo.reset(demo);
             Demo.setScene(demo,demo.sceneName = e.target.value);
-            Gui.update(demo.gui);
+
+            if (demo.gui) {
+                Gui.update(demo.gui);
+            }
             
             var scrollY = window.scrollY;
             window.location.hash = demo.sceneName;
@@ -204,7 +208,11 @@
         demoReset.addEventListener('click', function(e) {
             Demo.reset(demo);
             Demo.setScene(demo, demo.sceneName);
-            Gui.update(demo.gui);
+
+            if (demo.gui) {
+                Gui.update(demo.gui);
+            }
+
             Demo.setUpdateSourceLink(demo.sceneName);
         });
     };
