FIX: remove the ping and pong overrides server side in favor of and idleTimeout and added a manual ping client side

front/src/Connexion/RoomConnection.ts

@@ -26,6 +26,7 @@ import {
     QueryJitsiJwtMessage,
     SendJitsiJwtMessage,
     CharacterLayerMessage,
+    PingMessage,
     SendUserMessage
 } from "../Messages/generated/messages_pb"
 
@@ -42,6 +43,8 @@ import {
 } from "./ConnexionModels";
 import {BodyResourceDescriptionInterface} from "../Phaser/Entity/body_character";
 
+const manualPingDelay = 20000;
+
 export class RoomConnection implements RoomConnection {
     private readonly socket: WebSocket;
     private userId: number|null = null;
@@ -84,7 +87,9 @@ export class RoomConnection implements RoomConnection {
         this.socket.binaryType = 'arraybuffer';
 
         this.socket.onopen = (ev) => {
-            //console.log('WS connected');
+            //we manually ping every 20s to not be logged out by the server, even when the game is in background.
+            const pingMessage = new PingMessage();
+            setInterval(() => this.socket.send(pingMessage.serializeBinary().buffer), manualPingDelay);
         };
 
         this.socket.onmessage = (messageEvent) => {