prototype auto-start tour

source/server/server.ts

@@ -111,20 +111,34 @@ export default async function createServer(config = defaultConfig) :Promise<expr
 
   app.get("/ui/scenes/:scene/view", (req, res)=>{
     let {scene} = req.params;
-    let {lang} = req.query;
+    let {lang, tour} = req.query;
     let host = getHost(req);
     let referrer = new URL(req.get("Referrer")||`/ui/scenes/`, host);
     let thumb = new URL(`/scenes/${encodeURIComponent(scene)}/scene-image-thumb.jpg`, host);
+
+    let script = undefined;
+    if(tour && !Number.isNaN(parseInt(tour as any))){
+      script = `
+        const v = document.querySelector("voyager-explorer");
+        v?.on("model-load",()=>{
+          v?.toggleTours();
+          v?.setTourStep(${parseInt(tour as any)}, 0, true);
+        })
+      `;
+    }
+
 
     res.render("explorer", {
       title: `${scene}: Explorer`,
       scene,
       thumb: thumb.toString(),
       referrer: referrer.toString(),
       lang: ((typeof lang === "string")?lang.toUpperCase():"FR"),
+      script
     });
   });
 
+
   app.get("/ui/scenes/:scene/edit", canWrite, (req, res)=>{
     let {scene} = req.params;
     let {lang} = req.query;

source/server/templates/explorer.hbs

@@ -1,3 +1,6 @@
 
 <voyager-explorer resourceroot="/dist/" dracoRoot="/dist/js/draco/" root="/scenes/{{scene}}/" referrer="{{referrer}}" lang="{{lang}}"></voyager-explorer>
 <script type="text/javascript" src="/dist/js/voyager-explorer.js"></script>
+{{#if script }}<script type="text/javascript">
+  {{{script}}}
+</script>{{/if}}