src/main/resources/META-INF/resources/app.js

@@ -14,17 +14,6 @@ function url() {
     return window.location.protocol + '//' + window.location.hostname + (window.location.port?.length > 0 ? ':' + window.location.port : '');
 }
 
-function register() {
-    let httpRequest = new XMLHttpRequest();
-    httpRequest.open('POST', url() + '/dice/' + document.getElementById('room').value + '/register')
-    httpRequest.setRequestHeader('Content-Type', 'application/json')
-    httpRequest.send(JSON.stringify({
-        name: document.getElementById('name').value,
-        overlay: document.getElementById('overlayId').value,
-        id: document.getElementById('room').value + ':' + localStorage.getItem('userId')
-    }))
-}
-
 function start(event = undefined) {
     if ((!event || event.keyCode === 13) && document.getElementById('name').value.length > 0 && document.getElementById('room').value.length > 0) {
         document.getElementById('overlayId').value = url() + '/overlay/' + document.getElementById('room').value + ':' + localStorage.getItem('userId') + '?scale=10&clearAfter=30';
@@ -72,7 +61,14 @@ function start(event = undefined) {
 
         localStorage.setItem(document.getElementById('name').value + '-started', "true")
 
-        register();
+        let httpRequest = new XMLHttpRequest();
+        httpRequest.open('POST', url() + '/dice/' + document.getElementById('room').value + '/register')
+        httpRequest.setRequestHeader('Content-Type', 'application/json')
+        httpRequest.send(JSON.stringify({
+            name: document.getElementById('name').value,
+            overlay: document.getElementById('overlayId').value,
+            id: document.getElementById('room').value + ':' + localStorage.getItem('userId')
+        }))
         if (document.getElementById('gm').checked) {
             document.getElementById('resultSwitch').checked = true;
             document.getElementById('resultFrame').src = document.getElementById('resultsId').value;
@@ -102,21 +98,18 @@ function start(event = undefined) {
                     newOverlay.appendChild(newInput);
                     overlays.appendChild(newOverlay);
 
-                    if (!document.getElementById(data.id + '-diceFrame')) {
-                        let dice = document.createElement('iframe');
-                        dice.id = data.id + '-diceFrame'
-                        dice.style.width = "50%";
-                        dice.style.height = "100%";
-                        dice.style.overflow = "hidden";
-                        dice.style.border = "0";
-                        dice.style.zIndex = "4";
-                        dice.style.position = "absolute";
-                        dice.style.top = "0";
-                        dice.style.left = "50%";
-                        dice.src = data.overlay;
-                        document.getElementById('results-dice').appendChild(dice)
-
-                    }
+                    let dice = document.createElement('iframe');
+                    dice.id = data.id + '-diceFrame'
+                    dice.style.width = "50%";
+                    dice.style.height = "100%";
+                    dice.style.overflow = "hidden";
+                    dice.style.border = "0";
+                    dice.style.zIndex = "4";
+                    dice.style.position = "absolute";
+                    dice.style.top = "0";
+                    dice.style.left = "50%";
+                    dice.src = data.overlay;
+                    document.getElementById('results-dice').appendChild(dice)
                 }
 
                 configurePopover();
@@ -132,7 +125,6 @@ function rollEasy(dice) {
 
 function roll(event) {
     if ((!event || event.keyCode === 13) && document.getElementById('command').value?.length > 0) {
-        register()
         let httpRequest = new XMLHttpRequest();
         httpRequest.open('POST', url() + '/dice/' + document.getElementById('room').value + ':' + localStorage.getItem(`userId`))
         httpRequest.setRequestHeader('Content-Type', 'application/json')
@@ -215,7 +207,11 @@ document.addEventListener("DOMContentLoaded", async () => {
     })
 
     document.getElementById('resultDiceSwitch').addEventListener('change', function () {
-        document.getElementById('results-dice').hidden = !this.checked;
+        if (!this.checked) {
+            document.getElementById('results-dice').hidden = true
+        } else {
+            document.getElementById('results-dice').hidden = false
+        }
     })
 
     document.getElementById('chatOverlayLink').href = url() + '/chatoverlay'

src/main/resources/templates/index.html

@@ -202,8 +202,11 @@
             <h2 style="text-align: center">How-To</h2>
             <ul>
                 <li>
-                    Join a room by entering your character name and the name of the room
+                    Join a room by entering your character name and the name of the room.<br/>
+                    <strong>If you are a GM, make sure to join the room first or let all other players rejoin to get all
+                        Overlay-URLs.</strong>
                 </li>
+
                 <li>Open your Dice-Overlay either in a new Tab or as a browser source in OBS</li>
                 <ul>
                     <li>You can configure your Overlay with query parameters (for more information hover over the link)