Merge

back/src/Controller/IoSocketController.ts

@@ -4,10 +4,10 @@ import * as http from "http";
 import {MessageUserPosition, Point} from "../Model/Websocket/MessageUserPosition"; //TODO fix import by "_Model/.."
 import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface"; //TODO fix import by "_Model/.."
 import Jwt, {JsonWebTokenError} from "jsonwebtoken";
-import {SECRET_KEY, MINIMUM_DISTANCE, GROUP_RADIUS} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
+import {SECRET_KEY, MINIMUM_DISTANCE, GROUP_RADIUS, ALLOW_ARTILLERY} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
 import {World} from "../Model/World";
-import {Group} from "_Model/Group";
-import {UserInterface} from "_Model/UserInterface";
+import {Group} from "../Model/Group";
+import {UserInterface} from "../Model/UserInterface";
 import {isSetPlayerDetailsMessage,} from "../Model/Websocket/SetPlayerDetailsMessage";
 import {MessageUserJoined} from "../Model/Websocket/MessageUserJoined";
 import {MessageUserMoved} from "../Model/Websocket/MessageUserMoved";
@@ -19,12 +19,15 @@ import {isPointInterface, PointInterface} from "../Model/Websocket/PointInterfac
 import {isWebRtcSignalMessageInterface} from "../Model/Websocket/WebRtcSignalMessage";
 import {UserInGroupInterface} from "../Model/Websocket/UserInGroupInterface";
 import {isItemEventMessageInterface} from "../Model/Websocket/ItemEventMessage";
+import {uuid} from 'uuidv4';
+import {isUserMovesInterface} from "../Model/Websocket/UserMovesMessage";
+import {isViewport} from "../Model/Websocket/ViewportMessage";
 
 enum SockerIoEvent {
     CONNECTION = "connection",
     DISCONNECT = "disconnect",
     JOIN_ROOM = "join-room", // bi-directional
-    USER_POSITION = "user-position", // bi-directional
+    USER_POSITION = "user-position", // From client to server
     USER_MOVED = "user-moved", // From server to client
     USER_LEFT = "user-left", // From server to client
     WEBRTC_SIGNAL = "webrtc-signal",
@@ -36,6 +39,21 @@ enum SockerIoEvent {
     GROUP_DELETE = "group-delete",
     SET_PLAYER_DETAILS = "set-player-details",
     ITEM_EVENT = 'item-event',
+    SET_SILENT = "set_silent", // Set or unset the silent mode for this user.
+    SET_VIEWPORT = "set-viewport",
+    BATCH = "batch",
+}
+
+function emitInBatch(socket: ExSocketInterface, event: string | symbol, payload: unknown): void {
+    socket.batchedMessages.push({ event, payload});
+
+    if (socket.batchTimeout === null) {
+        socket.batchTimeout = setTimeout(() => {
+            socket.emit(SockerIoEvent.BATCH, socket.batchedMessages);
+            socket.batchedMessages = [];
+            socket.batchTimeout = null;
+        }, 100);
+    }
 }
 
 export class IoSocketController {
@@ -61,10 +79,25 @@ export class IoSocketController {
         // Authentication with token. it will be decoded and stored in the socket.
         // Completely commented for now, as we do not use the "/login" route at all.
         this.Io.use((socket: Socket, next) => {
+            console.log(socket.handshake.query.token);
             if (!socket.handshake.query || !socket.handshake.query.token) {
                 console.error('An authentication error happened, a user tried to connect without a token.');
                 return next(new Error('Authentication error'));
             }
+            if(socket.handshake.query.token === 'test'){
+                if (ALLOW_ARTILLERY) {
+                    (socket as ExSocketInterface).token = socket.handshake.query.token;
+                    (socket as ExSocketInterface).userId = uuid();
+                    (socket as ExSocketInterface).isArtillery = true;
+                    console.log((socket as ExSocketInterface).userId);
+                    next();
+                    return;
+                } else {
+                    console.warn("In order to perform a load-testing test on this environment, you must set the ALLOW_ARTILLERY environment variable to 'true'");
+                    next();
+                }
+            }
+            (socket as ExSocketInterface).isArtillery = false;
             if(this.searchClientByToken(socket.handshake.query.token)){
                 console.error('An authentication error happened, a user tried to connect while its token is already connected.');
                 return next(new Error('Authentication error'));
@@ -137,6 +170,11 @@ export class IoSocketController {
     ioConnection() {
         this.Io.on(SockerIoEvent.CONNECTION, (socket: Socket) => {
             const client : ExSocketInterface = socket as ExSocketInterface;
+            client.batchedMessages = [];
+            client.batchTimeout = null;
+            client.emitInBatch = (event: string | symbol, payload: unknown): void => {
+                emitInBatch(client, event, payload);
+            }
             this.sockets.set(client.userId, client);
 
             // Let's log server load when a user joins
@@ -156,6 +194,7 @@ export class IoSocketController {
                         y: user y position on map
             */
             socket.on(SockerIoEvent.JOIN_ROOM, (message: unknown, answerFn): void => {
+                console.log(SockerIoEvent.JOIN_ROOM, message);
                 try {
                     if (!isJoinRoomMessageInterface(message)) {
                         socket.emit(SockerIoEvent.MESSAGE_ERROR, {message: 'Invalid JOIN_ROOM message.'});
@@ -176,28 +215,30 @@ export class IoSocketController {
                     //join new previous room
                     const world = this.joinRoom(Client, roomId, message.position);
 
-                    //add function to refresh position user in real time.
-                    //this.refreshUserPosition(Client);
-
-                    const messageUserJoined = new MessageUserJoined(Client.userId, Client.name, Client.characterLayers, Client.position);
-
-                    socket.to(roomId).emit(SockerIoEvent.JOIN_ROOM, messageUserJoined);
-
-                    // The answer shall contain the list of all users of the room with their positions:
-                    const listOfUsers = Array.from(world.getUsers(), ([key, user]) => {
+                    const users = world.setViewport(Client, message.viewport);
+                    const listOfUsers = users.map((user: UserInterface) => {
                         const player: ExSocketInterface|undefined = this.sockets.get(user.id);
                         if (player === undefined) {
                             console.warn('Something went wrong. The World contains a user "'+user.id+"' but this user does not exist in the sockets list!");
                             return null;
                         }
                         return new MessageUserPosition(user.id, player.name, player.characterLayers, player.position);
-                    }).filter((item: MessageUserPosition|null) => item !== null);
+                    }, users);
 
                     const listOfItems: {[itemId: string]: unknown} = {};
                     for (const [itemId, item] of world.getItemsState().entries()) {
                         listOfItems[itemId] = item;
                     }
 
+                    //console.warn('ANSWER PLAYER POSITIONS', listOfUsers);
+                    if (answerFn === undefined && ALLOW_ARTILLERY === true) {
+                        /*console.error("TYPEOF answerFn", typeof(answerFn));
+                        console.error("answerFn", answerFn);
+                        process.exit(1)*/
+                        // For some reason, answerFn can be undefined if we use Artillery (?)
+                        return;
+                    }
+
                     answerFn({
                         users: listOfUsers,
                         items: listOfItems
@@ -208,28 +249,53 @@ export class IoSocketController {
                 }
             });
 
-            socket.on(SockerIoEvent.USER_POSITION, (position: unknown): void => {
+            socket.on(SockerIoEvent.SET_VIEWPORT, (message: unknown): void => {
                 try {
-                    if (!isPointInterface(position)) {
+                    //console.log('SET_VIEWPORT')
+                    if (!isViewport(message)) {
+                        socket.emit(SockerIoEvent.MESSAGE_ERROR, {message: 'Invalid SET_VIEWPORT message.'});
+                        console.warn('Invalid SET_VIEWPORT message received: ', message);
+                        return;
+                    }
+
+                    const Client = (socket as ExSocketInterface);
+                    Client.viewport = message;
+
+                    const world = this.Worlds.get(Client.roomId);
+                    if (!world) {
+                        console.error("In SET_VIEWPORT, could not find world with id '", Client.roomId, "'");
+                        return;
+                    }
+                    world.setViewport(Client, Client.viewport);
+                } catch (e) {
+                    console.error('An error occurred on "SET_VIEWPORT" event');
+                    console.error(e);
+                }
+            });
+
+            socket.on(SockerIoEvent.USER_POSITION, (userMovesMessage: unknown): void => {
+                //console.log(SockerIoEvent.USER_POSITION, userMovesMessage);
+                try {
+                    if (!isUserMovesInterface(userMovesMessage)) {
                         socket.emit(SockerIoEvent.MESSAGE_ERROR, {message: 'Invalid USER_POSITION message.'});
-                        console.warn('Invalid USER_POSITION message received: ', position);
+                        console.warn('Invalid USER_POSITION message received: ', userMovesMessage);
                         return;
                     }
 
                     const Client = (socket as ExSocketInterface);
 
                     // sending to all clients in room except sender
-                    Client.position = position;
+                    Client.position = userMovesMessage.position;
+                    Client.viewport = userMovesMessage.viewport;
 
                     // update position in the world
                     const world = this.Worlds.get(Client.roomId);
                     if (!world) {
-                        console.error("Could not find world with id '", Client.roomId, "'");
+                        console.error("In USER_POSITION, could not find world with id '", Client.roomId, "'");
                         return;
                     }
-                    world.updatePosition(Client, position);
-
-                    socket.to(Client.roomId).emit(SockerIoEvent.USER_MOVED, new MessageUserMoved(Client.userId, Client.position));
+                    world.updatePosition(Client, Client.position);
+                    world.setViewport(Client, Client.viewport);
                 } catch (e) {
                     console.error('An error occurred on "user_position" event');
                     console.error(e);
@@ -275,6 +341,7 @@ export class IoSocketController {
 
             // Let's send the user id to the user
             socket.on(SockerIoEvent.SET_PLAYER_DETAILS, (playerDetails: unknown, answerFn) => {
+                console.log(SockerIoEvent.SET_PLAYER_DETAILS, playerDetails);
                 if (!isSetPlayerDetailsMessage(playerDetails)) {
                     socket.emit(SockerIoEvent.MESSAGE_ERROR, {message: 'Invalid SET_PLAYER_DETAILS message.'});
                     console.warn('Invalid SET_PLAYER_DETAILS message received: ', playerDetails);
@@ -283,7 +350,34 @@ export class IoSocketController {
                 const Client = (socket as ExSocketInterface);
                 Client.name = playerDetails.name;
                 Client.characterLayers = playerDetails.characterLayers;
-                answerFn(Client.userId);
+                // Artillery fails when receiving an acknowledgement that is not a JSON object
+                if (!Client.isArtillery) {
+                    answerFn(Client.userId);
+                }
+            });
+
+            socket.on(SockerIoEvent.SET_SILENT, (silent: unknown) => {
+                console.log(SockerIoEvent.SET_SILENT, silent);
+                if (typeof silent !== "boolean") {
+                    socket.emit(SockerIoEvent.MESSAGE_ERROR, {message: 'Invalid SET_SILENT message.'});
+                    console.warn('Invalid SET_SILENT message received: ', silent);
+                    return;
+                }
+
+                try {
+                    const Client = (socket as ExSocketInterface);
+
+                    // update position in the world
+                    const world = this.Worlds.get(Client.roomId);
+                    if (!world) {
+                        console.error("In SET_SILENT, could not find world with id '", Client.roomId, "'");
+                        return;
+                    }
+                    world.setSilent(Client, silent);
+                } catch (e) {
+                    console.error('An error occurred on "SET_SILENT"');
+                    console.error(e);
+                }
             });
 
             socket.on(SockerIoEvent.ITEM_EVENT, (itemEvent: unknown) => {
@@ -359,8 +453,6 @@ export class IoSocketController {
         // leave previous room and world
         if(Client.roomId){
             try {
-                Client.to(Client.roomId).emit(SockerIoEvent.USER_LEFT, Client.userId);
-
                 //user leave previous world
                 const world: World | undefined = this.Worlds.get(Client.roomId);
                 if (world) {
@@ -396,6 +488,25 @@ export class IoSocketController {
                 this.sendUpdateGroupEvent(group);
             }, (groupUuid: string, lastUser: UserInterface) => {
                 this.sendDeleteGroupEvent(groupUuid, lastUser);
+            }, (user, listener) => {
+                const clientUser = this.searchClientByIdOrFail(user.id);
+                const clientListener = this.searchClientByIdOrFail(listener.id);
+                const messageUserJoined = new MessageUserJoined(clientUser.userId, clientUser.name, clientUser.characterLayers, clientUser.position);
+
+                clientListener.emit(SockerIoEvent.JOIN_ROOM, messageUserJoined);
+                //console.log("Sending JOIN_ROOM event");
+            }, (user, position, listener) => {
+                const clientUser = this.searchClientByIdOrFail(user.id);
+                const clientListener = this.searchClientByIdOrFail(listener.id);
+
+                clientListener.emitInBatch(SockerIoEvent.USER_MOVED, new MessageUserMoved(clientUser.userId, clientUser.position));
+                //console.log("Sending USER_MOVED event");
+            }, (user, listener) => {
+                const clientUser = this.searchClientByIdOrFail(user.id);
+                const clientListener = this.searchClientByIdOrFail(listener.id);
+
+                clientListener.emit(SockerIoEvent.USER_LEFT, clientUser.userId);
+                //console.log("Sending USER_LEFT event");
             });
             this.Worlds.set(roomId, world);
         }

back/src/Enum/EnvironmentVariable.ts

@@ -2,10 +2,12 @@ const SECRET_KEY = process.env.SECRET_KEY || "THECODINGMACHINE_SECRET_KEY";
 const URL_ROOM_STARTED = "/Floor0/floor0.json";
 const MINIMUM_DISTANCE = process.env.MINIMUM_DISTANCE ? Number(process.env.MINIMUM_DISTANCE) : 64;
 const GROUP_RADIUS = process.env.GROUP_RADIUS ? Number(process.env.GROUP_RADIUS) : 48;
+const ALLOW_ARTILLERY = process.env.ALLOW_ARTILLERY ? process.env.ALLOW_ARTILLERY == 'true' : false;
 
 export {
     SECRET_KEY,
     URL_ROOM_STARTED,
     MINIMUM_DISTANCE,
-    GROUP_RADIUS
+    GROUP_RADIUS,
+    ALLOW_ARTILLERY
 }

back/src/Model/PositionNotifier.ts

@@ -0,0 +1,120 @@
+/**
+ * Tracks the position of every player on the map, and sends notifications to the players interested in knowing about the move
+ * (i.e. players that are looking at the zone the player is currently in)
+ *
+ * Internally, the PositionNotifier works with Zones. A zone is a square area of a map.
+ * Each player is in a given zone, and each player tracks one or many zones (depending on the player viewport)
+ *
+ * The PositionNotifier is important for performance. It allows us to send the position of players only to a restricted
+ * number of players around the current player.
+ */
+import {UserEntersCallback, UserLeavesCallback, UserMovesCallback, Zone} from "./Zone";
+import {PointInterface} from "_Model/Websocket/PointInterface";
+import {UserInterface} from "_Model/UserInterface";
+import {ViewportInterface} from "_Model/Websocket/ViewportMessage";
+
+interface ZoneDescriptor {
+    i: number;
+    j: number;
+}
+
+export class PositionNotifier {
+
+    // TODO: we need a way to clean the zones if noone is in the zone and noone listening (to free memory!)
+
+    private zones: Zone[][] = [];
+
+    constructor(private zoneWidth: number, private zoneHeight: number, private onUserEnters: UserEntersCallback, private onUserMoves: UserMovesCallback, private onUserLeaves: UserLeavesCallback) {
+    }
+
+    private getZoneDescriptorFromCoordinates(x: number, y: number): ZoneDescriptor {
+        return {
+            i: Math.floor(x / this.zoneWidth),
+            j: Math.floor(y / this.zoneHeight),
+        }
+    }
+
+    /**
+     * Sets the viewport coordinates.
+     * Returns the list of new users to add
+     */
+    public setViewport(user: UserInterface, viewport: ViewportInterface): UserInterface[] {
+        if (viewport.left > viewport.right || viewport.top > viewport.bottom) {
+            console.warn('Invalid viewport received: ', viewport);
+            return [];
+        }
+
+        const oldZones = user.listenedZones;
+        const newZones = new Set<Zone>();
+
+        const topLeftDesc = this.getZoneDescriptorFromCoordinates(viewport.left, viewport.top);
+        const bottomRightDesc = this.getZoneDescriptorFromCoordinates(viewport.right, viewport.bottom);
+
+        for (let j = topLeftDesc.j; j <= bottomRightDesc.j; j++) {
+            for (let i = topLeftDesc.i; i <= bottomRightDesc.i; i++) {
+                newZones.add(this.getZone(i, j));
+            }
+        }
+
+        const addedZones = [...newZones].filter(x => !oldZones.has(x));
+        const removedZones = [...oldZones].filter(x => !newZones.has(x));
+
+
+        let users: UserInterface[] = [];
+        for (const zone of addedZones) {
+            zone.startListening(user);
+            users = users.concat(Array.from(zone.getPlayers()))
+        }
+        for (const zone of removedZones) {
+            zone.stopListening(user);
+        }
+
+        return users;
+    }
+
+    public updatePosition(user: UserInterface, userPosition: PointInterface): void {
+        // Did we change zone?
+        const oldZoneDesc = this.getZoneDescriptorFromCoordinates(user.position.x, user.position.y);
+        const newZoneDesc = this.getZoneDescriptorFromCoordinates(userPosition.x, userPosition.y);
+
+        if (oldZoneDesc.i != newZoneDesc.i || oldZoneDesc.j != newZoneDesc.j) {
+            const oldZone = this.getZone(oldZoneDesc.i, oldZoneDesc.j);
+            const newZone = this.getZone(newZoneDesc.i, newZoneDesc.j);
+
+            // Leave old zone
+            oldZone.leave(user, newZone);
+
+            // Enter new zone
+            newZone.enter(user, oldZone, userPosition);
+        } else {
+            const zone = this.getZone(oldZoneDesc.i, oldZoneDesc.j);
+            zone.move(user, userPosition);
+        }
+    }
+
+    public leave(user: UserInterface): void {
+        const oldZoneDesc = this.getZoneDescriptorFromCoordinates(user.position.x, user.position.y);
+        const oldZone = this.getZone(oldZoneDesc.i, oldZoneDesc.j);
+        oldZone.leave(user, null);
+
+        // Also, let's stop listening on viewports
+        for (const zone of user.listenedZones) {
+            zone.stopListening(user);
+        }
+    }
+
+    private getZone(i: number, j: number): Zone {
+        let zoneRow = this.zones[j];
+        if (zoneRow === undefined) {
+            zoneRow = new Array<Zone>();
+            this.zones[j] = zoneRow;
+        }
+
+        let zone = this.zones[j][i];
+        if (zone === undefined) {
+            zone = new Zone(this.onUserEnters, this.onUserMoves, this.onUserLeaves);
+            this.zones[j][i] = zone;
+        }
+        return zone;
+    }
+}

back/src/Model/UserInterface.ts

@@ -1,8 +1,11 @@
 import { Group } from "./Group";
 import { PointInterface } from "./Websocket/PointInterface";
+import {Zone} from "_Model/Zone";
 
 export interface UserInterface {
     id: string,
     group?: Group,
-    position: PointInterface
+    position: PointInterface,
+    silent: boolean,
+    listenedZones: Set<Zone>
 }

back/src/Model/Websocket/ExSocketInterface.ts

@@ -2,6 +2,7 @@ import {Socket} from "socket.io";
 import {PointInterface} from "./PointInterface";
 import {Identificable} from "./Identificable";
 import {TokenInterface} from "../../Controller/AuthenticateController";
+import {ViewportInterface} from "_Model/Websocket/ViewportMessage";
 
 export interface ExSocketInterface extends Socket, Identificable {
     token: string;
@@ -11,4 +12,12 @@ export interface ExSocketInterface extends Socket, Identificable {
     name: string;
     characterLayers: string[];
     position: PointInterface;
+    viewport: ViewportInterface;
+    isArtillery: boolean; // Whether this socket is opened by Artillery for load testing (hack)
+    /**
+     * Pushes an event that will be sent in the next batch of events
+     */
+    emitInBatch: (event: string | symbol, payload: unknown) => void;
+    batchedMessages: Array<{ event: string | symbol, payload: unknown }>;
+    batchTimeout: NodeJS.Timeout|null;
 }

back/src/Model/Websocket/JoinRoomMessage.ts

@@ -1,9 +1,11 @@
 import * as tg from "generic-type-guard";
 import {isPointInterface} from "./PointInterface";
+import {isViewport} from "./ViewportMessage";
 
 export const isJoinRoomMessageInterface =
     new tg.IsInterface().withProperties({
         roomId: tg.isString,
         position: isPointInterface,
+        viewport: isViewport
     }).get();
 export type JoinRoomMessageInterface = tg.GuardedType<typeof isJoinRoomMessageInterface>;

back/src/Model/Websocket/UserMovesMessage.ts

@@ -0,0 +1,11 @@
+import * as tg from "generic-type-guard";
+import {isPointInterface} from "./PointInterface";
+import {isViewport} from "./ViewportMessage";
+
+
+export const isUserMovesInterface =
+    new tg.IsInterface().withProperties({
+        position: isPointInterface,
+        viewport: isViewport,
+    }).get();
+export type UserMovesInterface = tg.GuardedType<typeof isUserMovesInterface>;

back/src/Model/Websocket/ViewportMessage.ts

@@ -0,0 +1,10 @@
+import * as tg from "generic-type-guard";
+
+export const isViewport =
+    new tg.IsInterface().withProperties({
+        left: tg.isNumber,
+        top: tg.isNumber,
+        right: tg.isNumber,
+        bottom: tg.isNumber,
+    }).get();
+export type ViewportInterface = tg.GuardedType<typeof isViewport>;

back/src/Model/World.ts

@@ -6,6 +6,9 @@ import {UserInterface} from "./UserInterface";
 import {ExSocketInterface} from "_Model/Websocket/ExSocketInterface";
 import {PositionInterface} from "_Model/PositionInterface";
 import {Identificable} from "_Model/Websocket/Identificable";
+import {UserEntersCallback, UserLeavesCallback, UserMovesCallback, Zone} from "_Model/Zone";
+import {PositionNotifier} from "./PositionNotifier";
+import {ViewportInterface} from "_Model/Websocket/ViewportMessage";
 
 export type ConnectCallback = (user: string, group: Group) => void;
 export type DisconnectCallback = (user: string, group: Group) => void;
@@ -29,12 +32,17 @@ export class World {
 
     private itemsState: Map<number, unknown> = new Map<number, unknown>();
 
+    private readonly positionNotifier: PositionNotifier;
+
     constructor(connectCallback: ConnectCallback,
                 disconnectCallback: DisconnectCallback,
                 minDistance: number,
                 groupRadius: number,
                 groupUpdatedCallback: GroupUpdatedCallback,
-                groupDeletedCallback: GroupDeletedCallback)
+                groupDeletedCallback: GroupDeletedCallback,
+                onUserEnters: UserEntersCallback,
+                onUserMoves: UserMovesCallback,
+                onUserLeaves: UserLeavesCallback)
     {
         this.users = new Map<string, UserInterface>();
         this.groups = new Set<Group>();
@@ -44,6 +52,8 @@ export class World {
         this.groupRadius = groupRadius;
         this.groupUpdatedCallback = groupUpdatedCallback;
         this.groupDeletedCallback = groupDeletedCallback;
+        // A zone is 10 sprites wide.
+        this.positionNotifier = new PositionNotifier(320, 320, onUserEnters, onUserMoves, onUserLeaves);
     }
 
     public getGroups(): Group[] {
@@ -57,7 +67,9 @@ export class World {
     public join(socket : Identificable, userPosition: PointInterface): void {
         this.users.set(socket.userId, {
             id: socket.userId,
-            position: userPosition
+            position: userPosition,
+            silent: false, // FIXME: silent should be set at the correct value when joining a room.
+            listenedZones: new Set<Zone>()
         });
         // Let's call update position to trigger the join / leave room
         this.updatePosition(socket, userPosition);
@@ -72,6 +84,10 @@ export class World {
             this.leaveGroup(userObj);
         }
         this.users.delete(user.userId);
+
+        if (userObj !== undefined) {
+            this.positionNotifier.leave(userObj);
+        }
     }
 
     public isEmpty(): boolean {
@@ -84,8 +100,14 @@ export class World {
             return;
         }
 
+        this.positionNotifier.updatePosition(user, userPosition);
+
         user.position = userPosition;
 
+        if (user.silent) {
+            return;
+        }
+
         if (typeof user.group === 'undefined') {
             // If the user is not part of a group:
             //  should he join a group?
@@ -120,6 +142,26 @@ export class World {
         }
     }
 
+    setSilent(socket: Identificable, silent: boolean) {
+        const user = this.users.get(socket.userId);
+        if(typeof user === 'undefined') {
+            console.warn('In setSilent, could not find user with ID "'+socket.userId+'" in world.');
+            return;
+        }
+        if (user.silent === silent) {
+            return;
+        }
+
+        user.silent = silent;
+        if (silent && user.group !== undefined) {
+            this.leaveGroup(user);
+        }
+        if (!silent) {
+            // If we are back to life, let's trigger a position update to see if we can join some group.
+            this.updatePosition(socket, user.position);
+        }
+    }
+
     /**
      * Makes a user leave a group and closes and destroy the group if the group contains only one remaining person.
      *
@@ -147,6 +189,7 @@ export class World {
      * Looks for the closest user that is:
      * - close enough (distance <= minDistance)
      * - not in a group
+     * - not silent
      * OR
      * - close enough to a group (distance <= groupRadius)
      */
@@ -162,6 +205,9 @@ export class World {
             if(currentUser === user) {
                 return;
             }
+            if (currentUser.silent) {
+                return;
+            }
 
             const distance = World.computeDistance(user, currentUser); // compute distance between peers.
 
@@ -297,4 +343,12 @@ export class World {
         }
         return 0;
     }*/
+    setViewport(socket : Identificable, viewport: ViewportInterface): UserInterface[] {
+        const user = this.users.get(socket.userId);
+        if(typeof user === 'undefined') {
+            console.warn('In setViewport, could not find user with ID "'+socket.userId+'" in world.');
+            return [];
+        }
+        return this.positionNotifier.setViewport(user, viewport);
+    }
 }

back/src/Model/Zone.ts

@@ -0,0 +1,96 @@
+import {UserInterface} from "./UserInterface";
+import {PointInterface} from "_Model/Websocket/PointInterface";
+import {PositionInterface} from "_Model/PositionInterface";
+
+export type UserEntersCallback = (user: UserInterface, listener: UserInterface) => void;
+export type UserMovesCallback = (user: UserInterface, position: PointInterface, listener: UserInterface) => void;
+export type UserLeavesCallback = (user: UserInterface, listener: UserInterface) => void;
+
+export class Zone {
+    private players: Set<UserInterface> = new Set<UserInterface>();
+    private listeners: Set<UserInterface> = new Set<UserInterface>();
+
+    constructor(private onUserEnters: UserEntersCallback, private onUserMoves: UserMovesCallback, private onUserLeaves: UserLeavesCallback) {
+    }
+
+    /**
+     * A user leaves the zone
+     */
+    public leave(user: UserInterface, newZone: Zone|null) {
+        this.players.delete(user);
+        this.notifyUserLeft(user, newZone);
+    }
+
+    /**
+     * Notify listeners of this zone that this user left
+     */
+    private notifyUserLeft(user: UserInterface, newZone: Zone|null) {
+        for (const listener of this.listeners) {
+            if (listener !== user && (newZone === null || !listener.listenedZones.has(newZone))) {
+                this.onUserLeaves(user, listener);
+            }
+        }
+    }
+
+    public enter(user: UserInterface, oldZone: Zone|null, position: PointInterface) {
+        this.players.add(user);
+        this.notifyUserEnter(user, oldZone, position);
+    }
+
+    /**
+     * Notify listeners of this zone that this user entered
+     */
+    private notifyUserEnter(user: UserInterface, oldZone: Zone|null, position: PointInterface) {
+        for (const listener of this.listeners) {
+            if (listener === user) {
+                continue;
+            }
+            if (oldZone === null || !listener.listenedZones.has(oldZone)) {
+                this.onUserEnters(user, listener);
+            } else {
+                this.onUserMoves(user, position, listener);
+            }
+        }
+    }
+
+    public move(user: UserInterface, position: PointInterface) {
+        if (!this.players.has(user)) {
+            this.players.add(user);
+            const foo = this.players;
+            this.notifyUserEnter(user, null, position);
+            return;
+        }
+
+        for (const listener of this.listeners) {
+            if (listener !== user) {
+                this.onUserMoves(user,position, listener);
+            }
+        }
+    }
+
+    public startListening(listener: UserInterface): void {
+        for (const player of this.players) {
+            if (player !== listener) {
+                this.onUserEnters(player, listener);
+            }
+        }
+
+        this.listeners.add(listener);
+        listener.listenedZones.add(this);
+    }
+
+    public stopListening(listener: UserInterface): void {
+        for (const player of this.players) {
+            if (player !== listener) {
+                this.onUserLeaves(player, listener);
+            }
+        }
+
+        this.listeners.delete(listener);
+        listener.listenedZones.delete(this);
+    }
+
+    public getPlayers(): Set<UserInterface> {
+        return this.players;
+    }
+}

back/tests/PositionNotifierTest.ts

@@ -0,0 +1,196 @@
+import "jasmine";
+import {World, ConnectCallback, DisconnectCallback } from "../src/Model/World";
+import {Point} from "../src/Model/Websocket/MessageUserPosition";
+import { Group } from "../src/Model/Group";
+import {PositionNotifier} from "../src/Model/PositionNotifier";
+import {UserInterface} from "../src/Model/UserInterface";
+import {PointInterface} from "../src/Model/Websocket/PointInterface";
+import {Zone} from "_Model/Zone";
+
+function move(user: UserInterface, x: number, y: number, positionNotifier: PositionNotifier): void {
+    positionNotifier.updatePosition(user, {
+        x,
+        y,
+        moving: false,
+        direction: 'down'
+    });
+    user.position.x = x;
+    user.position.y = y;
+}
+
+describe("PositionNotifier", () => {
+    it("should receive notifications when player moves", () => {
+        let enterTriggered = false;
+        let moveTriggered = false;
+        let leaveTriggered = false;
+
+        const positionNotifier = new PositionNotifier(300, 300, (user: UserInterface) => {
+            enterTriggered = true;
+        }, (user: UserInterface, position: PointInterface) => {
+            moveTriggered = true;
+        }, (user: UserInterface) => {
+            leaveTriggered = true;
+        });
+
+        const user1 = {
+            id: "1",
+            position: {
+                x: 500,
+                y: 500,
+                moving: false,
+                direction: 'down'
+            },
+            listenedZones: new Set<Zone>(),
+        } as UserInterface;
+
+        const user2 = {
+            id: "2",
+            position: {
+                x: -9999,
+                y: -9999,
+                moving: false,
+                direction: 'down'
+            },
+            listenedZones: new Set<Zone>(),
+        } as UserInterface;
+
+        positionNotifier.setViewport(user1, {
+            left: 200,
+            right: 600,
+            top: 100,
+            bottom: 500
+        });
+
+        move(user2, 500, 500, positionNotifier);
+
+        expect(enterTriggered).toBe(true);
+        expect(moveTriggered).toBe(false);
+        enterTriggered = false;
+
+        // Move inside the zone
+        move(user2, 501, 500, positionNotifier);
+
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(true);
+        moveTriggered = false;
+
+        // Move out of the zone in a zone that we don't track
+        move(user2, 901, 500, positionNotifier);
+
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(true);
+        leaveTriggered = false;
+
+        // Move back in
+        move(user2, 500, 500, positionNotifier);
+        expect(enterTriggered).toBe(true);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(false);
+        enterTriggered = false;
+
+        // Move out of the zone in a zone that we do track
+        move(user2, 200, 500, positionNotifier);
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(true);
+        expect(leaveTriggered).toBe(false);
+        moveTriggered = false;
+
+        // Leave the room
+        positionNotifier.leave(user2);
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(true);
+        leaveTriggered = false;
+    });
+
+    it("should receive notifications when camera moves", () => {
+        let enterTriggered = false;
+        let moveTriggered = false;
+        let leaveTriggered = false;
+
+        const positionNotifier = new PositionNotifier(300, 300, (user: UserInterface) => {
+            enterTriggered = true;
+        }, (user: UserInterface, position: PointInterface) => {
+            moveTriggered = true;
+        }, (user: UserInterface) => {
+            leaveTriggered = true;
+        });
+
+        const user1 = {
+            id: "1",
+            position: {
+                x: 500,
+                y: 500,
+                moving: false,
+                direction: 'down'
+            },
+            listenedZones: new Set<Zone>(),
+        } as UserInterface;
+
+        const user2 = {
+            id: "2",
+            position: {
+                x: -9999,
+                y: -9999,
+                moving: false,
+                direction: 'down'
+            },
+            listenedZones: new Set<Zone>(),
+        } as UserInterface;
+
+        let newUsers = positionNotifier.setViewport(user1, {
+            left: 200,
+            right: 600,
+            top: 100,
+            bottom: 500
+        });
+
+        expect(newUsers.length).toBe(0);
+
+        move(user2, 500, 500, positionNotifier);
+
+        expect(enterTriggered).toBe(true);
+        expect(moveTriggered).toBe(false);
+        enterTriggered = false;
+
+        // Move the viewport but the user stays inside.
+        positionNotifier.setViewport(user1, {
+            left: 201,
+            right: 601,
+            top: 100,
+            bottom: 500
+        });
+
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(false);
+
+        // Move the viewport out of the user.
+        positionNotifier.setViewport(user1, {
+            left: 901,
+            right: 1001,
+            top: 100,
+            bottom: 500
+        });
+
+        expect(enterTriggered).toBe(false);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(true);
+        leaveTriggered = false;
+
+        // Move the viewport back on the user.
+        newUsers = positionNotifier.setViewport(user1, {
+            left: 200,
+            right: 600,
+            top: 100,
+            bottom: 500
+        });
+
+        expect(enterTriggered).toBe(true);
+        expect(moveTriggered).toBe(false);
+        expect(leaveTriggered).toBe(false);
+        enterTriggered = false;
+        expect(newUsers.length).toBe(1);
+    });
+})

back/tests/WorldTest.ts

@@ -13,7 +13,7 @@ describe("World", () => {
 
         }
 
-        const world = new World(connect, disconnect, 160, 160, () => {}, () => {});
+        const world = new World(connect, disconnect, 160, 160, () => {}, () => {}, () => {}, () => {}, () => {});
 
         world.join({ userId: "foo" }, new Point(100, 100));
 
@@ -40,7 +40,7 @@ describe("World", () => {
 
         }
 
-        const world = new World(connect, disconnect, 160, 160, () => {}, () => {});
+        const world = new World(connect, disconnect, 160, 160, () => {}, () => {}, () => {}, () => {}, () => {});
 
         world.join({ userId: "foo" }, new Point(100, 100));
 
@@ -69,7 +69,7 @@ describe("World", () => {
             disconnectCallNumber++;
         }
 
-        const world = new World(connect, disconnect, 160, 160, () => {}, () => {});
+        const world = new World(connect, disconnect, 160, 160, () => {}, () => {}, () => {}, () => {}, () => {});
 
         world.join({ userId: "foo" }, new Point(100, 100));
 

back/tsconfig.json

@@ -12,7 +12,7 @@
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
     // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
     // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
-    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    "sourceMap": true,                     /* Generates corresponding '.map' file. */
     // "outFile": "./",                       /* Concatenate and emit output to single file. */
     "outDir": "./dist",                        /* Redirect output structure to the directory. */
     // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */

benchmark/README.md

@@ -0,0 +1,69 @@
+# Load testing
+
+Load testing is performed with Artillery.
+
+Install:
+
+```bash
+cd benchmark
+npm install
+```
+
+Running the tests (on one core):
+
+```bash
+cd benchmark
+npm run start
+```
+
+You can adapt the `socketio-load-test.yaml` file to increase/decrease load.
+
+Default settings are:
+
+```yaml
+  phases:
+    - duration: 20
+      arrivalRate: 2
+```
+
+which means: during 20 seconds, 2 users will be added every second (peaking at 40 simultaneous users).
+
+Important: don't go above 40 simultaneous users for Artillery, otherwise, it is Artillery that will fail to run the tests properly.
+To know, simply run "top". The "node" process for Artillery should never reach 100%.
+
+Reports are generated in `artillery_output.html`.
+
+# Multicore tests
+
+You will want to test with Artillery running on multiple cores.
+
+You can use
+
+```bash
+./artillery_multi_core.sh
+```
+
+This will trigger 4 Artillery instances in parallel.
+
+Beware, the report generated is generated for only one instance.
+
+# How to test, what to track?
+
+While testing, you can check:
+
+- CPU load of WorkAdventure API node process (it should not reach 100%)
+- Get metrics at the end of the run: `http://api.workadventure.localhost/metrics`  
+  In particular, look for:
+  ```
+  # HELP nodejs_eventloop_lag_max_seconds The maximum recorded event loop delay.
+  # TYPE nodejs_eventloop_lag_max_seconds gauge
+  nodejs_eventloop_lag_max_seconds 23.991418879
+  ```
+  This is the maximum time it took Node to process an event (you need to restart node after each test to reset this counter)
+- Generate a profiling using "node --prof" by switching the command in docker-compose.yaml:
+  ```
+      #command: yarn dev
+      command: yarn run profile
+  ```
+  Read https://nodejs.org/en/docs/guides/simple-profiling/ on how to generate a profile.
+

benchmark/artillery_multi_core.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+npm run start &
+pid1=$!
+npm run start:nooutput &
+pid2=$!
+npm run start:nooutput &
+pid3=$!
+npm run start:nooutput &
+pid4=$!
+
+wait $pid1
+wait $pid2
+wait $pid3
+wait $pid4
+
+

benchmark/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "workadventure-artillery",
+  "version": "1.0.0",
+  "description": "Load testing for WorkAdventure",
+  "scripts": {
+    "start": "artillery run socketio-load-test.yaml -o artillery_output.json && artillery report --output artillery_output.html artillery_output.json",
+    "start:nooutput": "artillery run socketio-load-test.yaml"
+  },
+  "contributors": [
+    {
+      "name": "Grégoire Parant",
+      "email": "g.parant@thecodingmachine.com"
+    },
+    {
+      "name": "David Négrier",
+      "email": "d.negrier@thecodingmachine.com"
+    },
+    {
+      "name": "Arthmaël Poly",
+      "email": "a.poly@thecodingmachine.com"
+    }
+  ],
+  "license": "SEE LICENSE IN LICENSE.txt",
+  "dependencies": {
+    "artillery": "^1.6.1"
+  }
+}

benchmark/socketio-load-test.yaml

@@ -0,0 +1,54 @@
+config:
+  target: "http://api.workadventure.localhost/"
+  socketio:
+    transports: ["websocket"]
+    query:
+      token: "test"
+  phases:
+    - duration: 20
+      arrivalRate: 2
+  processor: "./socketioLoadTest.js"
+scenarios:
+  - name: "Connects and moves player for 20 seconds"
+    weight: 90
+    engine: "socketio"
+    flow:
+      - emit:
+          channel: "set-player-details"
+          data:
+            name: 'TEST'
+            characterLayers: ['male3']
+      - think: 1
+      - emit:
+          channel: "join-room"
+          data:
+            roomId: 'global__api.workadventure.localhost/map/files/Floor0/floor0'
+            position:
+              x: 783
+              y: 170
+              direction: 'down'
+              moving: false
+            viewport:
+              left: 500
+              top: 0
+              right: 800
+              bottom: 200
+      - think: 1
+      - loop:
+        - function: "setYRandom"
+        - emit:
+            channel: "user-position"
+            data:
+              position:
+                x: "{{ x }}"
+                y: "{{ y }}"
+                direction: 'down'
+                moving: false
+              viewport:
+                left: "{{ left }}"
+                top: "{{ top }}"
+                right: "{{ right }}"
+                bottom: "{{ bottom }}"
+        - think: 0.2
+        count: 100
+      - think: 10

benchmark/socketioLoadTest.js

@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = {
+    setYRandom
+};
+
+function setYRandom(context, events, done) {
+    if (context.angle === undefined) {
+        context.angle = Math.random() * Math.PI * 2;
+    }
+    context.angle += 0.05;
+
+    context.vars.x = 320 + 1472/2 * (1 + Math.sin(context.angle));
+    context.vars.y = 200 + 1090/2 * (1 + Math.cos(context.angle));
+    context.vars.left = context.vars.x - 320;
+    context.vars.top = context.vars.y - 200;
+    context.vars.right = context.vars.x + 320;
+    context.vars.bottom = context.vars.y + 200;
+    return done();
+}

deeployer.libsonnet

@@ -25,7 +25,11 @@
       },
       "ports": [80],
       "env": {
-        "API_URL": "api."+url
+        "API_URL": "api."+url,
+        "JITSI_URL": "meet.jit.si",
+        "TURN_SERVER": "turn:coturn.workadventu.re:443,turns:coturn.workadventu.re:443",
+        "TURN_USER": "workadventure",
+        "TURN_PASSWORD": "WorkAdventure123"
       }
     },
     "maps": {

docker-compose.yaml

@@ -22,10 +22,14 @@ services:
     image: thecodingmachine/nodejs:14
     environment:
       DEBUG_MODE: "$DEBUG_MODE"
+      JITSI_URL: $JITSI_URL
       HOST: "0.0.0.0"
       NODE_ENV: development
       API_URL: api.workadventure.localhost
       STARTUP_COMMAND_1: yarn install
+      TURN_SERVER: "turn:coturn.workadventu.re:443,turns:coturn.workadventu.re:443"
+      TURN_USER: workadventure
+      TURN_PASSWORD: WorkAdventure123
     command: yarn run start
     volumes:
       - ./front:/usr/src/app
@@ -68,6 +72,7 @@ services:
     environment:
       STARTUP_COMMAND_1: yarn install
       SECRET_KEY: yourSecretKey
+      ALLOW_ARTILLERY: "true"
     volumes:
       - ./back:/usr/src/app
     labels:

front/dist/resources/style/style.css

@@ -256,6 +256,10 @@ body {
     .sidebar > div {
         max-height: 21%;
     }
+
+    .sidebar > div:hover {
+        max-height: 25%;
+    }
 }
 @media (max-aspect-ratio: 1/1) {
     .main-container {
@@ -274,6 +278,10 @@ body {
     .sidebar > div {
         max-width: 21%;
     }
+
+    .sidebar > div:hover {
+        max-width: 25%;
+    }
 }
 
 .game {
@@ -291,12 +299,11 @@ body {
     flex-basis: 100%;
 }*/
 
-.cowebsite iframe {
+.cowebsite > iframe {
     width: 100%;
     height: 100%;
 }
 
-
 .game-overlay {
     display: none;
     position: absolute;
@@ -324,9 +331,16 @@ body {
 .main-section > div {
     margin: 2%;
     flex-basis: 96%;
+    transition: margin-left 0.2s, margin-right 0.2s, margin-bottom 0.2s, margin-top 0.2s, flex-basis 0.2s;
+    cursor: pointer;
     /*flex-shrink: 2;*/
 }
 
+.main-section > div:hover {
+    margin: 0%;
+    flex-basis: 100%;
+}
+
 .sidebar {
     flex: 0 0 25%;
     display: flex;
@@ -334,6 +348,12 @@ body {
 
 .sidebar > div {
     margin: 2%;
+    transition: margin-left 0.2s, margin-right 0.2s, margin-bottom 0.2s, margin-top 0.2s, max-height 0.2s, max-width 0.2s;
+    cursor: pointer;
+}
+
+.sidebar > div:hover {
+    margin: 0%;
 }
 
 /* Let's make sure videos are vertically centered if they need to be cropped */
@@ -354,11 +374,16 @@ body {
     padding: 1%;
 }
 
-.chat-mode div {
+.chat-mode > div {
     margin: 1%;
     max-height: 96%;
+    transition: margin-left 0.2s, margin-right 0.2s, margin-bottom 0.2s, margin-top 0.2s;
+    cursor: pointer;
 }
 
+.chat-mode > div:hover {
+    margin: 0%;
+}
 .chat-mode.one-col > div {
     flex-basis: 98%;
 }

front/src/Connection.ts

@@ -14,7 +14,7 @@ enum EventMessage{
     WEBRTC_SCREEN_SHARING_SIGNAL = "webrtc-screen-sharing-signal",
     WEBRTC_START = "webrtc-start",
     JOIN_ROOM = "join-room", // bi-directional
-    USER_POSITION = "user-position", // bi-directional
+    USER_POSITION = "user-position", // From client to server
     USER_MOVED = "user-moved", // From server to client
     USER_LEFT = "user-left", // From server to client
     MESSAGE_ERROR = "message-error",
@@ -25,6 +25,9 @@ enum EventMessage{
     ITEM_EVENT = 'item-event',
 
     CONNECT_ERROR = "connect_error",
+    SET_SILENT = "set_silent", // Set or unset the silent mode for this user.
+    SET_VIEWPORT = "set-viewport",
+    BATCH = "batch",
 }
 
 export interface PointInterface {
@@ -95,6 +98,23 @@ export interface StartMapInterface {
     startInstance: string
 }
 
+export interface ViewportInterface {
+    left: number,
+    top: number,
+    right: number,
+    bottom: number,
+}
+
+export interface UserMovesInterface {
+    position: PositionInterface,
+    viewport: ViewportInterface,
+}
+
+export interface BatchedMessageInterface {
+    event: string,
+    payload: unknown
+}
+
 export interface ItemEventMessageInterface {
     itemId: number,
     event: string,
@@ -123,6 +143,18 @@ export class Connection implements Connection {
         this.socket.on(EventMessage.MESSAGE_ERROR, (message: string) => {
             console.error(EventMessage.MESSAGE_ERROR, message);
         })
+
+        /**
+         * Messages inside batched messages are extracted and sent to listeners directly.
+         */
+        this.socket.on(EventMessage.BATCH, (batchedMessages: BatchedMessageInterface[]) => {
+            for (const message of batchedMessages) {
+                const listeners = this.socket.listeners(message.event);
+                for (const listener of listeners) {
+                    listener(message.payload);
+                }
+            }
+        })
     }
 
     public static createConnection(name: string, characterLayersSelected: string[]): Promise<Connection> {
@@ -163,21 +195,33 @@ export class Connection implements Connection {
     }
 
 
-    public joinARoom(roomId: string, startX: number, startY: number, direction: string, moving: boolean): Promise<RoomJoinedMessageInterface> {
+    public joinARoom(roomId: string, startX: number, startY: number, direction: string, moving: boolean, viewport: ViewportInterface): Promise<RoomJoinedMessageInterface> {
         const promise = new Promise<RoomJoinedMessageInterface>((resolve, reject) => {
-            this.socket.emit(EventMessage.JOIN_ROOM, { roomId, position: {x: startX, y: startY, direction, moving }}, (roomJoinedMessage: RoomJoinedMessageInterface) => {
-                resolve(roomJoinedMessage);
-            });
+            this.socket.emit(EventMessage.JOIN_ROOM, {
+                    roomId,
+                    position: {x: startX, y: startY, direction, moving },
+                    viewport,
+                }, (roomJoinedMessage: RoomJoinedMessageInterface) => {
+                    resolve(roomJoinedMessage);
+                });
         })
         return promise;
     }
 
-    public sharePosition(x : number, y : number, direction : string, moving: boolean) : void{
+    public sharePosition(x : number, y : number, direction : string, moving: boolean, viewport: ViewportInterface) : void{
         if(!this.socket){
             return;
         }
         const point = new Point(x, y, direction, moving);
-        this.socket.emit(EventMessage.USER_POSITION, point);
+        this.socket.emit(EventMessage.USER_POSITION, { position: point, viewport } as UserMovesInterface);
+    }
+
+    public setSilent(silent: boolean): void {
+        this.socket.emit(EventMessage.SET_SILENT, silent);
+    }
+
+    public setViewport(viewport: ViewportInterface): void {
+        this.socket.emit(EventMessage.SET_VIEWPORT, viewport);
     }
 
     public onUserJoins(callback: (message: MessageUserJoined) => void): void {

front/src/Enum/EnvironmentVariable.ts

@@ -1,5 +1,9 @@
 const DEBUG_MODE: boolean = process.env.DEBUG_MODE == "true";
 const API_URL = (typeof(window) !== 'undefined' ? window.location.protocol : 'http:') + '//' + (process.env.API_URL || "api.workadventure.localhost");
+const TURN_SERVER: string = process.env.TURN_SERVER || "turn:numb.viagenie.ca";
+const TURN_USER: string = process.env.TURN_USER || 'g.parant@thecodingmachine.com';
+const TURN_PASSWORD: string = process.env.TURN_PASSWORD || 'itcugcOHxle9Acqi$';
+const JITSI_URL : string|undefined = (process.env.JITSI_URL === '') ? undefined : process.env.JITSI_URL;
 const RESOLUTION = 3;
 const ZOOM_LEVEL = 1/*3/4*/;
 const POSITION_DELAY = 200; // Wait 200ms between sending position events
@@ -11,5 +15,9 @@ export {
     RESOLUTION,
     ZOOM_LEVEL,
     POSITION_DELAY,
-    MAX_EXTRAPOLATION_TIME
+    MAX_EXTRAPOLATION_TIME,
+    TURN_SERVER,
+    TURN_USER,
+    TURN_PASSWORD,
+    JITSI_URL
 }

front/src/Phaser/Game/GameMap.ts

@@ -0,0 +1,97 @@
+import {ITiledMap} from "../Map/ITiledMap";
+
+export type PropertyChangeCallback = (newValue: string | number | boolean | undefined, oldValue: string | number | boolean | undefined) => void;
+
+/**
+ * A wrapper around a ITiledMap interface to provide additional capabilities.
+ * It is used to handle layer properties.
+ */
+export class GameMap {
+    private key: number|undefined;
+    private lastProperties = new Map<string, string|boolean|number>();
+    private callbacks = new Map<string, Array<PropertyChangeCallback>>();
+
+    public constructor(private map: ITiledMap) {
+    }
+
+    /**
+     * Sets the position of the current player (in pixels)
+     * This will trigger events if properties are changing.
+     */
+    public setPosition(x: number, y: number) {
+        const xMap = Math.floor(x / this.map.tilewidth);
+        const yMap = Math.floor(y / this.map.tileheight);
+        const key = xMap + yMap * this.map.width;
+        if (key === this.key) {
+            return;
+        }
+        this.key = key;
+
+        const newProps = this.getProperties(key);
+        const oldProps = this.lastProperties;
+
+        // Let's compare the 2 maps:
+        // First new properties vs oldProperties
+        for (const [newPropName, newPropValue] of newProps.entries()) {
+            const oldPropValue = oldProps.get(newPropName);
+            if (oldPropValue !== newPropValue) {
+                this.trigger(newPropName, oldPropValue, newPropValue);
+            }
+        }
+
+        for (const [oldPropName, oldPropValue] of oldProps.entries()) {
+            if (!newProps.has(oldPropName)) {
+                // We found a property that disappeared
+                this.trigger(oldPropName, oldPropValue, undefined);
+            }
+        }
+
+        this.lastProperties = newProps;
+    }
+
+    private getProperties(key: number): Map<string, string|boolean|number> {
+        const properties = new Map<string, string|boolean|number>();
+
+        for (const layer of this.map.layers) {
+            if (layer.type !== 'tilelayer') {
+                continue;
+            }
+            const tiles = layer.data as number[];
+            if (tiles[key] == 0) {
+                continue;
+            }
+            // There is a tile in this layer, let's embed the properties
+            if (layer.properties !== undefined) {
+                for (const layerProperty of layer.properties) {
+                    if (layerProperty.value === undefined) {
+                        continue;
+                    }
+                    properties.set(layerProperty.name, layerProperty.value);
+                }
+            }
+        }
+
+        return properties;
+    }
+
+    private trigger(propName: string, oldValue: string | number | boolean | undefined, newValue: string | number | boolean | undefined) {
+        const callbacksArray = this.callbacks.get(propName);
+        if (callbacksArray !== undefined) {
+            for (const callback of callbacksArray) {
+                callback(newValue, oldValue);
+            }
+        }
+    }
+
+    /**
+     * Registers a callback called when the user moves to a tile where the property propName is different from the last tile the user was on.
+     */
+    public onPropertyChange(propName: string, callback: PropertyChangeCallback) {
+        let callbacksArray = this.callbacks.get(propName);
+        if (callbacksArray === undefined) {
+            callbacksArray = new Array<PropertyChangeCallback>();
+            this.callbacks.set(propName, callbacksArray);
+        }
+        callbacksArray.push(callback);
+    }
+}

front/src/Phaser/Game/GameScene.ts

@@ -10,7 +10,7 @@ import {
     RoomJoinedMessageInterface
 } from "../../Connection";
 import {CurrentGamerInterface, hasMovedEventName, Player} from "../Player/Player";
-import {DEBUG_MODE, POSITION_DELAY, RESOLUTION, ZOOM_LEVEL} from "../../Enum/EnvironmentVariable";
+import {DEBUG_MODE, JITSI_URL, POSITION_DELAY, RESOLUTION, ZOOM_LEVEL} from "../../Enum/EnvironmentVariable";
 import {
     ITiledMap,
     ITiledMapLayer,
@@ -33,6 +33,9 @@ import Sprite = Phaser.GameObjects.Sprite;
 import CanvasTexture = Phaser.Textures.CanvasTexture;
 import GameObject = Phaser.GameObjects.GameObject;
 import FILE_LOAD_ERROR = Phaser.Loader.Events.FILE_LOAD_ERROR;
+import {GameMap} from "./GameMap";
+import {CoWebsiteManager} from "../../WebRtc/CoWebsiteManager";
+import {mediaManager} from "../../WebRtc/MediaManager";
 import {FourOFourSceneName} from "../Reconnecting/FourOFourScene";
 import {ItemFactoryInterface} from "../Items/ItemFactoryInterface";
 import {ActionableItem} from "../Items/ActionableItem";
@@ -122,7 +125,8 @@ export class GameScene extends Phaser.Scene implements CenterListener {
     private startLayerName: string|undefined;
     private presentationModeSprite!: Sprite;
     private chatModeSprite!: Sprite;
-    private repositionCallback!: (this: Window, ev: UIEvent) => void;
+    private onResizeCallback!: (this: Window, ev: UIEvent) => void;
+    private gameMap!: GameMap;
     private actionableItems: Map<number, ActionableItem> = new Map<number, ActionableItem>();
     // The item that can be selected by pressing the space key.
     private outlinedItem: ActionableItem|null = null;
@@ -247,7 +251,7 @@ export class GameScene extends Phaser.Scene implements CenterListener {
 
                 this.scene.stop(this.scene.key);
                 this.scene.remove(this.scene.key);
-                window.removeEventListener('resize', this.repositionCallback);
+                window.removeEventListener('resize', this.onResizeCallback);
             })
 
             connection.onActionableEvent((message => {
@@ -398,6 +402,7 @@ export class GameScene extends Phaser.Scene implements CenterListener {
     create(): void {
         //initalise map
         this.Map = this.add.tilemap(this.MapKey);
+        this.gameMap = new GameMap(this.mapFile);
         const mapDirUrl = this.MapUrlFile.substr(0, this.MapUrlFile.lastIndexOf('/'));
         this.mapFile.tilesets.forEach((tileset: ITiledTileSet) => {
             this.Terrains.push(this.Map.addTilesetImage(tileset.name, `${mapDirUrl}/${tileset.image}`, tileset.tilewidth, tileset.tileheight, tileset.margin, tileset.spacing/*, tileset.firstgid*/));
@@ -521,12 +526,14 @@ export class GameScene extends Phaser.Scene implements CenterListener {
         this.presentationModeSprite.setOrigin(0, 1);
         this.presentationModeSprite.setInteractive();
         this.presentationModeSprite.setVisible(false);
+        this.presentationModeSprite.setDepth(99999);
         this.presentationModeSprite.on('pointerup', this.switchLayoutMode.bind(this));
         this.chatModeSprite = this.add.sprite(36, this.game.renderer.height - 2, 'layout_modes', 3);
         this.chatModeSprite.setScrollFactor(0, 0);
         this.chatModeSprite.setOrigin(0, 1);
         this.chatModeSprite.setInteractive();
         this.chatModeSprite.setVisible(false);
+        this.chatModeSprite.setDepth(99999);
         this.chatModeSprite.on('pointerup', this.switchLayoutMode.bind(this));
 
         // FIXME: change this to use the UserInputManager class for input
@@ -534,12 +541,58 @@ export class GameScene extends Phaser.Scene implements CenterListener {
             this.switchLayoutMode();
         });
 
-        this.repositionCallback = this.reposition.bind(this);
-        window.addEventListener('resize', this.repositionCallback);
+        this.onResizeCallback = this.onResize.bind(this);
+        window.addEventListener('resize', this.onResizeCallback);
         this.reposition();
 
         // From now, this game scene will be notified of reposition events
         layoutManager.setListener(this);
+
+        this.gameMap.onPropertyChange('openWebsite', (newValue, oldValue) => {
+            if (newValue === undefined) {
+                CoWebsiteManager.closeCoWebsite();
+            } else {
+                CoWebsiteManager.loadCoWebsite(newValue as string);
+            }
+        });
+        let jitsiApi: any; // eslint-disable-line @typescript-eslint/no-explicit-any
+        this.gameMap.onPropertyChange('jitsiRoom', (newValue, oldValue) => {
+            if (newValue === undefined) {
+                this.connection.setSilent(false);
+                jitsiApi?.dispose();
+                CoWebsiteManager.closeCoWebsite();
+                mediaManager.showGameOverlay();
+            } else {
+                CoWebsiteManager.insertCoWebsite((cowebsiteDiv => {
+                    const domain = JITSI_URL;
+                    const options = {
+                        roomName: this.instance + "-" + newValue,
+                        width: "100%",
+                        height: "100%",
+                        parentNode: cowebsiteDiv,
+                        configOverwrite: {
+                            prejoinPageEnabled: false
+                        },
+                        interfaceConfigOverwrite: {
+                            SHOW_CHROME_EXTENSION_BANNER: false,
+                            MOBILE_APP_PROMO: false
+                        }
+                    };
+                    jitsiApi = new (window as any).JitsiMeetExternalAPI(domain, options); // eslint-disable-line @typescript-eslint/no-explicit-any
+                    jitsiApi.executeCommand('displayName', gameManager.getPlayerName());
+                }));
+                this.connection.setSilent(true);
+                mediaManager.hideGameOverlay();
+            }
+        })
+
+        this.gameMap.onPropertyChange('silent', (newValue, oldValue) => {
+            if (newValue === undefined || newValue === false || newValue === '') {
+                this.connection.setSilent(false);
+            } else {
+                this.connection.setSilent(true);
+            }
+        });
     }
 
     private switchLayoutMode(): void {
@@ -713,7 +766,17 @@ export class GameScene extends Phaser.Scene implements CenterListener {
 
         //join room
         this.connectionPromise.then((connection: Connection) => {
-            connection.joinARoom(this.RoomId, this.startX, this.startY, PlayerAnimationNames.WalkDown, false).then((roomJoinedMessage: RoomJoinedMessageInterface) => {
+            const camera = this.cameras.main;
+            connection.joinARoom(this.RoomId,
+                this.startX,
+                this.startY,
+                PlayerAnimationNames.WalkDown,
+                false, {
+                    left: camera.scrollX,
+                    top: camera.scrollY,
+                    right: camera.scrollX + camera.width,
+                    bottom: camera.scrollY + camera.height,
+                }).then((roomJoinedMessage: RoomJoinedMessageInterface) => {
                 this.initUsersPosition(roomJoinedMessage.users);
                 this.connectionAnswerPromiseResolve(roomJoinedMessage);
             });
@@ -721,6 +784,9 @@ export class GameScene extends Phaser.Scene implements CenterListener {
             //listen event to share position of user
             this.CurrentPlayer.on(hasMovedEventName, this.pushPlayerPosition.bind(this))
             this.CurrentPlayer.on(hasMovedEventName, this.outlineItem.bind(this))
+            this.CurrentPlayer.on(hasMovedEventName, (event: HasMovedEvent) => {
+                this.gameMap.setPosition(event.x, event.y);
+            })
         });
     }
 
@@ -796,7 +862,13 @@ export class GameScene extends Phaser.Scene implements CenterListener {
     private doPushPlayerPosition(event: HasMovedEvent): void {
         this.lastMoveEventSent = event;
         this.lastSentTick = this.currentTick;
-        this.connection.sharePosition(event.x, event.y, event.direction, event.moving);
+        const camera = this.cameras.main;
+        this.connection.sharePosition(event.x, event.y, event.direction, event.moving, {
+            left: camera.scrollX,
+            top: camera.scrollY,
+            right: camera.scrollX + camera.width,
+            bottom: camera.scrollY + camera.height,
+        });
     }
 
     EventToClickOnTile(){
@@ -860,7 +932,7 @@ export class GameScene extends Phaser.Scene implements CenterListener {
             this.simplePeer.unregister();
             this.scene.stop();
             this.scene.remove(this.scene.key);
-            window.removeEventListener('resize', this.repositionCallback);
+            window.removeEventListener('resize', this.onResizeCallback);
             this.scene.start(nextSceneKey.key, {
                 startLayerName: nextSceneKey.hash
             });
@@ -1058,6 +1130,19 @@ export class GameScene extends Phaser.Scene implements CenterListener {
         this.connection.emitActionableEvent(itemId, eventName, state, parameters);
     }
 
+    private onResize(): void {
+        this.reposition();
+
+        // Send new viewport to server
+        const camera = this.cameras.main;
+        this.connection.setViewport({
+            left: camera.scrollX,
+            top: camera.scrollY,
+            right: camera.scrollX + camera.width,
+            bottom: camera.scrollY + camera.height,
+        });
+    }
+
     private reposition(): void {
         this.presentationModeSprite.setY(this.game.renderer.height - 2);
         this.chatModeSprite.setY(this.game.renderer.height - 2);

front/src/Phaser/Login/EnableCameraScene.ts

@@ -266,6 +266,9 @@ export class EnableCameraScene extends Phaser.Scene {
         this.soundMeter.stop();
         window.removeEventListener('resize', this.repositionCallback);
 
+        mediaManager.stopCamera();
+        mediaManager.stopMicrophone();
+
         // Do we have a start URL in the address bar? If so, let's redirect to this address
         const instanceAndMapUrl = this.findMapUrl();
         if (instanceAndMapUrl !== null) {

front/src/WebRtc/CoWebsiteManager.ts

@@ -14,7 +14,24 @@ export class CoWebsiteManager {
         iframe.id = 'cowebsite-iframe';
         iframe.src = url;
         cowebsiteDiv.appendChild(iframe);
+        //iframe.onload = () => {
+            // onload can be long to trigger. Maybe we should display the website, whatever happens, after 1 second?
+            CoWebsiteManager.fire();
+        //}
+    }
+
+    /**
+     * Just like loadCoWebsite but the div can be filled by the user.
+     */
+    public static insertCoWebsite(callback: (cowebsite: HTMLDivElement) => void): void {
+        const cowebsiteDiv = HtmlUtils.getElementByIdOrFail<HTMLDivElement>("cowebsite");
+        cowebsiteDiv.innerHTML = '';
+
+        callback(cowebsiteDiv);
+        //iframe.onload = () => {
+        // onload can be long to trigger. Maybe we should display the website, whatever happens, after 1 second?
         CoWebsiteManager.fire();
+        //}
     }
 
     public static closeCoWebsite(): void {
@@ -24,8 +41,8 @@ export class CoWebsiteManager {
     }
 
     public static getGameSize(): {width: number, height: number} {
-        const iframe = document.getElementById('cowebsite-iframe');
-        if (iframe === null) {
+        const hasChildren = HtmlUtils.getElementByIdOrFail<HTMLDivElement>("cowebsite").children.length > 0;
+        if (hasChildren === false) {
             return {
                 width: window.innerWidth,
                 height: window.innerHeight

front/src/WebRtc/LayoutManager.ts

@@ -42,6 +42,14 @@ class LayoutManager {
         div.innerHTML = html;
         div.id = "user-"+userId;
         div.className = "media-container"
+        div.onclick = () => {
+            const parentId = div.parentElement?.id;
+            if (parentId === 'sidebar' || parentId === 'chat-mode') {
+                this.focusOn(userId);
+            } else {
+                this.removeFocusOn(userId);
+            }
+        }
 
         if (importance === DivImportance.Important) {
             this.importantDivs.set(userId, div);
@@ -76,6 +84,48 @@ class LayoutManager {
         }
     }
 
+    /**
+     * Put the screen in presentation mode and move elem in presentation mode (and all other videos in normal mode)
+     */
+    private focusOn(userId: string): void {
+        const focusedDiv = this.getDivByUserId(userId);
+        for (const [importantUserId, importantDiv] of this.importantDivs.entries()) {
+            //this.positionDiv(importantDiv, DivImportance.Normal);
+            this.importantDivs.delete(importantUserId);
+            this.normalDivs.set(importantUserId, importantDiv);
+        }
+        this.normalDivs.delete(userId);
+        this.importantDivs.set(userId, focusedDiv);
+        //this.positionDiv(focusedDiv, DivImportance.Important);
+        this.switchLayoutMode(LayoutMode.Presentation);
+    }
+
+    /**
+     * Removes userId from presentation mode
+     */
+    private removeFocusOn(userId: string): void {
+        const importantDiv = this.importantDivs.get(userId);
+        if (importantDiv === undefined) {
+            throw new Error('Div with user id "'+userId+'" is not in important mode');
+        }
+        this.normalDivs.set(userId, importantDiv);
+        this.importantDivs.delete(userId);
+
+        this.positionDiv(importantDiv, DivImportance.Normal);
+    }
+
+    private getDivByUserId(userId: string): HTMLDivElement {
+        let div = this.importantDivs.get(userId);
+        if (div !== undefined) {
+            return div;
+        }
+        div = this.normalDivs.get(userId);
+        if (div !== undefined) {
+            return div;
+        }
+        throw new Error('Could not find media with user id '+userId);
+    }
+
     /**
      * Removes the DIV matching userId.
      */
@@ -154,6 +204,7 @@ class LayoutManager {
      * Tries to find the biggest available box of remaining space (this is a space where we can center the character)
      */
     public findBiggestAvailableArray(): {xStart: number, yStart: number, xEnd: number, yEnd: number} {
+        const game = HtmlUtils.getElementByIdOrFail<HTMLDivElement>('game');
         if (this.mode === LayoutMode.VideoChat) {
             const children = document.querySelectorAll<HTMLDivElement>('div.chat-mode > div');
             const htmlChildren = Array.from(children.values());
@@ -163,27 +214,27 @@ class LayoutManager {
                 return {
                     xStart: 0,
                     yStart: 0,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             }
 
             const lastDiv = htmlChildren[htmlChildren.length - 1];
             // Compute area between top right of the last div and bottom right of window
-            const area1 = (window.innerWidth - (lastDiv.offsetLeft + lastDiv.offsetWidth))
-                          * (window.innerHeight - lastDiv.offsetTop);
+            const area1 = (game.offsetWidth - (lastDiv.offsetLeft + lastDiv.offsetWidth))
+                          * (game.offsetHeight - lastDiv.offsetTop);
 
             // Compute area between bottom of last div and bottom of the screen on whole width
-            const area2 = window.innerWidth
-                * (window.innerHeight - (lastDiv.offsetTop + lastDiv.offsetHeight));
+            const area2 = game.offsetWidth
+                * (game.offsetHeight - (lastDiv.offsetTop + lastDiv.offsetHeight));
 
             if (area1 < 0 && area2 < 0) {
                 // If screen is full, let's not attempt something foolish and simply center character in the middle.
                 return {
                     xStart: 0,
                     yStart: 0,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             }
             if (area1 <= area2) {
@@ -191,16 +242,16 @@ class LayoutManager {
                 return {
                     xStart: 0,
                     yStart: lastDiv.offsetTop + lastDiv.offsetHeight,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             } else {
                 console.log('lastDiv', lastDiv.offsetTop);
                 return {
                     xStart: lastDiv.offsetLeft + lastDiv.offsetWidth,
                     yStart: lastDiv.offsetTop,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             }
         } else {
@@ -213,15 +264,15 @@ class LayoutManager {
                 return {
                     xStart: 0,
                     yStart: 0,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             }
 
             // At this point, we know we have at least one element in the main section.
             const lastPresentationDiv = mainSectionChildren[mainSectionChildren.length-1];
 
-            const presentationArea = (window.innerHeight - (lastPresentationDiv.offsetTop + lastPresentationDiv.offsetHeight))
+            const presentationArea = (game.offsetHeight - (lastPresentationDiv.offsetTop + lastPresentationDiv.offsetHeight))
                                      * (lastPresentationDiv.offsetLeft + lastPresentationDiv.offsetWidth);
 
             let leftSideBar: number;
@@ -234,22 +285,22 @@ class LayoutManager {
                 leftSideBar = lastSideBarChildren.offsetLeft;
                 bottomSideBar = lastSideBarChildren.offsetTop + lastSideBarChildren.offsetHeight;
             }
-            const sideBarArea = (window.innerWidth - leftSideBar)
-                * (window.innerHeight - bottomSideBar);
+            const sideBarArea = (game.offsetWidth - leftSideBar)
+                * (game.offsetHeight - bottomSideBar);
 
             if (presentationArea <= sideBarArea) {
                 return {
                     xStart: leftSideBar,
                     yStart: bottomSideBar,
-                    xEnd: window.innerWidth,
-                    yEnd: window.innerHeight
+                    xEnd: game.offsetWidth,
+                    yEnd: game.offsetHeight
                 }
             } else {
                 return {
                     xStart: 0,
                     yStart: lastPresentationDiv.offsetTop + lastPresentationDiv.offsetHeight,
-                    xEnd: /*lastPresentationDiv.offsetLeft + lastPresentationDiv.offsetWidth*/ window.innerWidth , // To avoid flickering when a chat start, we center on the center of the screen, not the center of the main content area
-                    yEnd: window.innerHeight
+                    xEnd: /*lastPresentationDiv.offsetLeft + lastPresentationDiv.offsetWidth*/ game.offsetWidth , // To avoid flickering when a chat start, we center on the center of the screen, not the center of the main content area
+                    yEnd: game.offsetHeight
                 }
             }
         }

front/src/WebRtc/MediaManager.ts

@@ -7,9 +7,9 @@ const videoConstraint: boolean|MediaTrackConstraints = {
     facingMode: "user"
 };
 
-type UpdatedLocalStreamCallback = (media: MediaStream) => void;
-type StartScreenSharingCallback = (media: MediaStream) => void;
-type StopScreenSharingCallback = (media: MediaStream) => void;
+export type UpdatedLocalStreamCallback = (media: MediaStream|null) => void;
+export type StartScreenSharingCallback = (media: MediaStream) => void;
+export type StopScreenSharingCallback = (media: MediaStream) => void;
 
 // TODO: Split MediaManager in 2 classes: MediaManagerUI (in charge of HTML) and MediaManager (singleton in charge of the camera only)
 // TODO: verify that microphone event listeners are not triggered plenty of time NOW (since MediaManager is created many times!!!!)
@@ -109,7 +109,7 @@ export class MediaManager {
         this.updatedLocalStreamCallBacks.delete(callback);
     }
 
-    private triggerUpdatedLocalStreamCallbacks(stream: MediaStream): void {
+    private triggerUpdatedLocalStreamCallbacks(stream: MediaStream|null): void {
         for (const callback of this.updatedLocalStreamCallBacks) {
             callback(stream);
         }
@@ -127,11 +127,16 @@ export class MediaManager {
         }
     }
 
-    showGameOverlay(){
+    public showGameOverlay(){
         const gameOverlay = this.getElementByIdOrFail('game-overlay');
         gameOverlay.classList.add('active');
     }
 
+    public hideGameOverlay(){
+        const gameOverlay = this.getElementByIdOrFail('game-overlay');
+        gameOverlay.classList.remove('active');
+    }
+
     private enableCamera() {
         this.cinemaClose.style.display = "none";
         this.cinemaBtn.classList.remove("disabled");
@@ -142,20 +147,20 @@ export class MediaManager {
         });
     }
 
-    private disableCamera() {
+    private async disableCamera() {
         this.cinemaClose.style.display = "block";
         this.cinema.style.display = "none";
         this.cinemaBtn.classList.add("disabled");
         this.constraintsMedia.video = false;
         this.myCamVideo.srcObject = null;
-        if (this.localStream) {
-            this.localStream.getVideoTracks().forEach((MediaStreamTrack: MediaStreamTrack) => {
-                MediaStreamTrack.stop();
-            });
-        }
-        this.getCamera().then((stream) => {
+        this.stopCamera();
+
+        if (this.constraintsMedia.audio !== false) {
+            const stream = await this.getCamera();
             this.triggerUpdatedLocalStreamCallbacks(stream);
-        });
+        } else {
+            this.triggerUpdatedLocalStreamCallbacks(null);
+        }
     }
 
     private enableMicrophone() {
@@ -163,24 +168,25 @@ export class MediaManager {
         this.microphone.style.display = "block";
         this.microphoneBtn.classList.remove("disabled");
         this.constraintsMedia.audio = true;
+
         this.getCamera().then((stream) => {
             this.triggerUpdatedLocalStreamCallbacks(stream);
         });
     }
 
-    private disableMicrophone() {
+    private async disableMicrophone() {
         this.microphoneClose.style.display = "block";
         this.microphone.style.display = "none";
         this.microphoneBtn.classList.add("disabled");
         this.constraintsMedia.audio = false;
-        if(this.localStream) {
-            this.localStream.getAudioTracks().forEach((MediaStreamTrack: MediaStreamTrack) => {
-                MediaStreamTrack.stop();
-            });
-        }
-        this.getCamera().then((stream) => {
+        this.stopMicrophone();
+
+        if (this.constraintsMedia.video !== false) {
+            const stream = await this.getCamera();
             this.triggerUpdatedLocalStreamCallbacks(stream);
-        });
+        } else {
+            this.triggerUpdatedLocalStreamCallbacks(null);
+        }
     }
 
     private enableScreenSharing() {
@@ -287,6 +293,28 @@ export class MediaManager {
         }
     }
 
+    /**
+     * Stops the camera from filming
+     */
+    public stopCamera(): void {
+        if (this.localStream) {
+            for (const track of this.localStream.getVideoTracks()) {
+                track.stop();
+            }
+        }
+    }
+
+    /**
+     * Stops the microphone from listening
+     */
+    public stopMicrophone(): void {
+        if (this.localStream) {
+            for (const track of this.localStream.getAudioTracks()) {
+                track.stop();
+            }
+        }
+    }
+
     setCamera(id: string): Promise<MediaStream> {
         let video = this.constraintsMedia.video;
         if (typeof(video) === 'boolean' || video === undefined) {

front/src/WebRtc/ScreenSharingPeer.ts

@@ -1,6 +1,7 @@
 import * as SimplePeerNamespace from "simple-peer";
 import {mediaManager} from "./MediaManager";
 import {Connection} from "../Connection";
+import {TURN_SERVER, TURN_USER, TURN_PASSWORD} from "../Enum/EnvironmentVariable";
 
 const Peer: SimplePeerNamespace.SimplePeer = require('simple-peer');
 
@@ -23,9 +24,9 @@ export class ScreenSharingPeer extends Peer {
                         urls: 'stun:stun.l.google.com:19302'
                     },
                     {
-                        urls: 'turn:numb.viagenie.ca',
-                        username: 'g.parant@thecodingmachine.com',
-                        credential: 'itcugcOHxle9Acqi$'
+                        urls: TURN_SERVER.split(','),
+                        username: TURN_USER,
+                        credential: TURN_PASSWORD
                     },
                 ]
             }
@@ -70,7 +71,7 @@ export class ScreenSharingPeer extends Peer {
     }
 
     private sendWebrtcScreenSharingSignal(data: unknown) {
-        console.log("sendWebrtcScreenSharingSignal", data);
+        //console.log("sendWebrtcScreenSharingSignal", data);
         try {
             this.connection.sendWebrtcScreenSharingSignal(data, this.userId);
         }catch (e) {
@@ -82,8 +83,8 @@ export class ScreenSharingPeer extends Peer {
      * Sends received stream to screen.
      */
     private stream(stream?: MediaStream) {
-        console.log(`ScreenSharingPeer::stream => ${this.userId}`, stream);
-        console.log(`stream => ${this.userId} => `, stream);
+        //console.log(`ScreenSharingPeer::stream => ${this.userId}`, stream);
+        //console.log(`stream => ${this.userId} => `, stream);
         if(!stream){
             mediaManager.removeActiveScreenSharingVideo(this.userId);
             this.isReceivingStream = false;

front/src/WebRtc/SimplePeer.ts

@@ -4,7 +4,12 @@ import {
     WebRtcSignalReceivedMessageInterface,
     WebRtcStartMessageInterface
 } from "../Connection";
-import { mediaManager } from "./MediaManager";
+import {
+    mediaManager,
+    StartScreenSharingCallback,
+    StopScreenSharingCallback,
+    UpdatedLocalStreamCallback
+} from "./MediaManager";
 import * as SimplePeerNamespace from "simple-peer";
 import {ScreenSharingPeer} from "./ScreenSharingPeer";
 import {VideoPeer} from "./VideoPeer";
@@ -32,9 +37,9 @@ export class SimplePeer {
 
     private PeerScreenSharingConnectionArray: Map<string, ScreenSharingPeer> = new Map<string, ScreenSharingPeer>();
     private PeerConnectionArray: Map<string, VideoPeer> = new Map<string, VideoPeer>();
-    private readonly sendLocalVideoStreamCallback: (media: MediaStream) => void;
-    private readonly sendLocalScreenSharingStreamCallback: (media: MediaStream) => void;
-    private readonly stopLocalScreenSharingStreamCallback: (media: MediaStream) => void;
+    private readonly sendLocalVideoStreamCallback: UpdatedLocalStreamCallback;
+    private readonly sendLocalScreenSharingStreamCallback: StartScreenSharingCallback;
+    private readonly stopLocalScreenSharingStreamCallback: StopScreenSharingCallback;
     private readonly peerConnectionListeners: Array<PeerConnectionListener> = new Array<PeerConnectionListener>();
 
     constructor(Connection: Connection, WebRtcRoomId: string = "test-webrtc") {
@@ -326,9 +331,9 @@ export class SimplePeer {
     }
 
     public sendLocalVideoStream(){
-        this.Users.forEach((user: UserSimplePeerInterface) => {
+        for (const user of this.Users) {
             this.pushVideoToRemoteUser(user.userId);
-        })
+        }
     }
 
     /**

front/src/WebRtc/VideoPeer.ts

@@ -1,6 +1,7 @@
 import * as SimplePeerNamespace from "simple-peer";
 import {mediaManager} from "./MediaManager";
 import {Connection} from "../Connection";
+import {TURN_PASSWORD, TURN_SERVER, TURN_USER} from "../Enum/EnvironmentVariable";
 
 const Peer: SimplePeerNamespace.SimplePeer = require('simple-peer');
 
@@ -18,14 +19,31 @@ export class VideoPeer extends Peer {
                         urls: 'stun:stun.l.google.com:19302'
                     },
                     {
-                        urls: 'turn:numb.viagenie.ca',
-                        username: 'g.parant@thecodingmachine.com',
-                        credential: 'itcugcOHxle9Acqi$'
+                        urls: TURN_SERVER.split(','),
+                        username: TURN_USER,
+                        credential: TURN_PASSWORD
                     },
                 ]
             }
         });
 
+        console.log('PEER SETUP ', {
+            initiator: initiator ? initiator : false,
+            reconnectTimer: 10000,
+            config: {
+                iceServers: [
+                    {
+                        urls: 'stun:stun.l.google.com:19302'
+                    },
+                    {
+                        urls: TURN_SERVER,
+                        username: TURN_USER,
+                        credential: TURN_PASSWORD
+                    },
+                ]
+            }
+        })
+
         //start listen signal for the peer connection
         this.on('signal', (data: unknown) => {
             this.sendWebrtcSignal(data);
@@ -85,7 +103,7 @@ export class VideoPeer extends Peer {
      * Sends received stream to screen.
      */
     private stream(stream?: MediaStream) {
-        console.log(`VideoPeer::stream => ${this.userId}`, stream);
+        //console.log(`VideoPeer::stream => ${this.userId}`, stream);
         if(!stream){
             mediaManager.disabledVideoByUserId(this.userId);
             mediaManager.disabledMicrophoneByUserId(this.userId);

front/src/index.ts

@@ -1,6 +1,6 @@
 import 'phaser';
 import GameConfig = Phaser.Types.Core.GameConfig;
-import {DEBUG_MODE, RESOLUTION} from "./Enum/EnvironmentVariable";
+import {DEBUG_MODE, JITSI_URL, RESOLUTION} from "./Enum/EnvironmentVariable";
 import {cypressAsserter} from "./Cypress/CypressAsserter";
 import {LoginScene} from "./Phaser/Login/LoginScene";
 import {ReconnectingScene} from "./Phaser/Reconnecting/ReconnectingScene";
@@ -15,6 +15,13 @@ import {CoWebsiteManager} from "./WebRtc/CoWebsiteManager";
 
 //CoWebsiteManager.loadCoWebsite('https://thecodingmachine.com');
 
+// Load Jitsi if the environment variable is set.
+if (JITSI_URL) {
+    const jitsiScript = document.createElement('script');
+    jitsiScript.src = 'https://' + JITSI_URL + '/external_api.js';
+    document.head.appendChild(jitsiScript);
+}
+
 const {width, height} = CoWebsiteManager.getGameSize();
 
 const config: GameConfig = {

front/webpack.config.js

@@ -45,7 +45,7 @@ module.exports = {
         new webpack.ProvidePlugin({
             Phaser: 'phaser'
         }),
-        new webpack.EnvironmentPlugin(['API_URL', 'DEBUG_MODE'])
+        new webpack.EnvironmentPlugin(['API_URL', 'DEBUG_MODE', 'TURN_SERVER', 'TURN_USER', 'TURN_PASSWORD', 'JITSI_URL'])
     ],
 
 };

maps/Floor0/floor0.json

@@ -15,6 +15,60 @@
  "height":34,
  "infinite":false,
  "layers":[
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 309, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":34,
+         "id":23,
+         "name":"patio",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"jitsiRoom",
+                 "type":"string",
+                 "value":"tcm-patio"
+                }],
+         "type":"tilelayer",
+         "visible":true,
+         "width":46,
+         "x":0,
+         "y":0
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maps/Floor1/floor1.json

@@ -21,6 +21,60 @@
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+         "id":14,
+         "name":"radiant_meeting_room",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"jitsiRoom",
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+         "height":18,
+         "id":16,
+         "name":"white-meeting-room",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"jitsiRoom",
+                 "type":"string",
+                 "value":"tcm-white-room"
+                }],
+         "type":"tilelayer",
+         "visible":true,
+         "width":46,
+         "x":0,
+         "y":0
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+         "height":18,
+         "id":15,
+         "name":"dire-meeting-room",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"jitsiRoom",
+                 "type":"string",
+                 "value":"tcm-dire"
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@@ -134,7 +188,7 @@
          "x":0,
          "y":0
         }],
- "nextlayerid":14,
+ "nextlayerid":17,
  "nextobjectid":1,
  "orientation":"orthogonal",
  "renderorder":"right-down",
@@ -505,6 +559,29 @@
                         }]
                 }],
          "tilewidth":32
+        }, 
+        {
+         "columns":8,
+         "firstgid":4809,
+         "image":"..\/Floor0\/floortileset.png",
+         "imageheight":256,
+         "imagewidth":256,
+         "margin":0,
+         "name":"floortileset",
+         "spacing":0,
+         "tilecount":64,
+         "tileheight":32,
+         "tiles":[
+                {
+                 "id":37,
+                 "properties":[
+                        {
+                         "name":"collides",
+                         "type":"bool",
+                         "value":true
+                        }]
+                }],
+         "tilewidth":32
         }],
  "tilewidth":32,
  "type":"map",

website/dist/create-map.html

@@ -150,10 +150,32 @@
                     <li>You can of course use the &quot;#&quot; notation in an exit scene URL (so an exit scene URL will point to a given entry scene URL)</li>
                 </ul>
 
+                <h3 id="opening-a-website-when-walking-on-the-map" class="pixel-title">Opening a website when walking on the map</h3>
+                <p>On your map, you can define special zones. When a player will pass over these zones, a website will open
+                (as an iframe on the right side of the screen)</p>
+                <p>In order to create a zone that opens websites:</p>
+                <ul>
+                    <li>You must create a specific layer.</li>
+                    <li>In layer properties, you MUST add a &quot;openWebsite&quot; property (of type "string"). The value of the property is the URL of the website to open (the URL must start with "https://")</li>
+                </ul>
 
+                <h3 id="opening-a-jitsi-meet-when-walking-on-the-map" class="pixel-title">Opening a Jitsi meet when walking on the map</h3>
+                <p>On your map, you can define special zones (meeting rooms) that will trigger the opening of a Jitsi meet. When a player will pass over these zones, a Jitsi meet will open
+                    (as an iframe on the right side of the screen)</p>
+                <p>In order to create Jitsi meet zones:</p>
+                <ul>
+                    <li>You must create a specific layer.</li>
+                    <li>In layer properties, you MUST add a boolean &quot;jitsiRoom&quot; property (of type "string"). The value of the property is the name of the room in Jitsi. Note: the name of the room will be prepended with the name of the instance of the map (so that different instances of the map have different rooms)</li>
+                </ul>
 
-
-
+                <h3 id="making-a-silent-zone" class="pixel-title">Making a "silent" zone</h3>
+                <p>On your map, you can define special silent zones where nobody is allowed to talk.
+                In these zones, users will not speak to each others, even if they are next to each others.</p>
+                <p>In order to create a silent zone:</p>
+                <ul>
+                    <li>You must create a specific layer.</li>
+                    <li>In layer properties, you MUST add a boolean &quot;silent&quot; property. If the silent property is checked, the users are entering the silent zone when they walk on any tile of the layer.</li>
+                </ul>
 
                 <h3 id="pushing-the-map" class="pixel-title">Pushing the map</h3>
                 <p>When your changes are ready, you need to &quot;commit&quot; and &quot;push&quot; (i.e. "upload") the changes back to GitHub.