Merge pull request #198 from thecodingmachine/connectioninscene

Refactoring connection to be part of a GameScene

front/src/Connection.ts

@@ -1,4 +1,4 @@
-import {GameManager} from "./Phaser/Game/GameManager";
+import {gameManager, GameManager} from "./Phaser/Game/GameManager";
 import Axios from "axios";
 import {API_URL} from "./Enum/EnvironmentVariable";
 import {MessageUI} from "./Logger/MessageUI";
@@ -118,37 +118,13 @@ export interface WebRtcSignalMessageInterface {
     signal: SignalData
 }
 
-export interface ConnectionInterface {
-    socket: Socket|null;
-    token: string|null;
-    name: string|null;
-    userId: string|null;
-
-    createConnection(name: string, characterSelected: string): Promise<ConnectionInterface>;
-
-    loadStartMap(): Promise<StartMapInterface>;
-
-    joinARoom(roomId: string, startX: number, startY: number, direction: string, moving: boolean): void;
-
-    sharePosition(x: number, y: number, direction: string, moving: boolean): void;
-
-    /*webrtc*/
-    sendWebrtcSignal(signal: unknown, roomId: string, userId?: string|null, receiverId?: string): void;
-
-    receiveWebrtcSignal(callBack: Function): void;
-
-    receiveWebrtcStart(callBack: (message: WebRtcStartMessageInterface) => void): void;
-
-    disconnectMessage(callBack: (message: WebRtcDisconnectMessageInterface) => void): void;
-}
-
 export interface StartMapInterface {
     mapUrlStart: string,
     startInstance: string
 }
 
-export class Connection implements ConnectionInterface {
+export class Connection implements Connection {
-    socket: Socket|null = null;
+    socket: Socket;
     token: string|null = null;
     name: string|null = null; // TODO: drop "name" storage here
     character: string|null = null;
@@ -159,102 +135,78 @@ export class Connection implements ConnectionInterface {
     lastPositionShared: PointInterface|null = null;
     lastRoom: string|null = null;
 
-    constructor(GameManager: GameManager) {
+    private constructor(GameManager: GameManager, name: string, character: string, token: string) {
         this.GameManager = GameManager;
-    }
-
-    createConnection(name: string, characterSelected: string): Promise<ConnectionInterface> {
         this.name = name;
-        this.character = characterSelected;
+        this.character = character;
-        return Axios.post(`${API_URL}/login`, {name: name})
+        this.token = token;
-            .then((res) => {
+
-                this.token = res.data.token;
         this.socket = SocketIo(`${API_URL}`, {
             query: {
                 token: this.token
-                    }
+            },
+            reconnection: false // Reconnection is handled by the application itself
         });
 
-                //listen event
+        this.socket.on(EventMessage.MESSAGE_ERROR, (message: string) => {
-                this.disconnectServer();
+            console.error(EventMessage.MESSAGE_ERROR, message);
-                this.errorMessage();
+        })
-                this.groupUpdatedOrCreated();
+    }
-                this.groupDeleted();
-                this.onUserJoins();
-                this.onUserMoved();
-                this.onUserLeft();
 
-                return this.connectSocketServer();
+    public static createConnection(name: string, characterSelected: string): Promise<Connection> {
+        return Axios.post(`${API_URL}/login`, {name: name})
+            .then((res) => {
+
+                return new Promise<Connection>((resolve, reject) => {
+                    const connection = new Connection(gameManager, name, characterSelected, res.data.token);
+
+                    connection.onConnectError((error: object) => {
+                        console.log('An error occurred while connecting to socket server. Retrying');
+                        reject(error);
+                    });
+
+                    connection.socket.emit(EventMessage.SET_PLAYER_DETAILS, {
+                        name: connection.name,
+                        character: connection.character
+                    } as SetPlayerDetailsMessage, (id: string) => {
+                        connection.userId = id;
+                    });
+
+                    resolve(connection);
+                });
             })
             .catch((err) => {
-                console.error(err);
+                // Let's retry in 4-6 seconds
-                throw err;
+                return new Promise<Connection>((resolve, reject) => {
+                    setTimeout(() => {
+                        Connection.createConnection(name, characterSelected).then((connection) => resolve(connection))
+                            .catch((error) => reject(error));
+                    }, 4000 + Math.floor(Math.random() * 2000) );
+                });
+
+                //console.error(err);
+                //throw err;
             });
     }
 
-    private getSocket(): Socket {
+    public closeConnection(): void {
-        if (this.socket === null) {
+        this.socket?.close();
-            throw new Error('Socket not initialized while using Connection')
+        this.lastPositionShared = null;
-        }
+        this.lastRoom = null;
-        return this.socket;
     }
 
-    /**
-     *
-     * @param character
-     */
-    connectSocketServer(): Promise<ConnectionInterface>{
-        return new Promise<ConnectionInterface>((resolve, reject) => {
-            this.getSocket().emit(EventMessage.SET_PLAYER_DETAILS, {
-                name: this.name,
-                character: this.character
-            } as SetPlayerDetailsMessage, (id: string) => {
-                this.userId = id;
-            });
 
-            //if try to reconnect with last position
+    joinARoom(roomId: string, startX: number, startY: number, direction: string, moving: boolean): Promise<MessageUserPositionInterface[]> {
-            /*if(this.lastRoom) {
-                //join the room
-                this.joinARoom(this.lastRoom,
-                    this.lastPositionShared ? this.lastPositionShared.x : 0,
-                    this.lastPositionShared ? this.lastPositionShared.y : 0,
-                    this.lastPositionShared ? this.lastPositionShared.direction : PlayerAnimationNames.WalkDown,
-                    this.lastPositionShared ? this.lastPositionShared.moving : false);
-            }*/
-
-            /*if(this.lastPositionShared) {
-
-                //share your first position
-                this.sharePosition(
-                    this.lastPositionShared ? this.lastPositionShared.x : 0,
-                    this.lastPositionShared ? this.lastPositionShared.y : 0,
-                    this.lastPositionShared.direction,
-                    this.lastPositionShared.moving
-                );
-            }*/
-
-            resolve(this);
-        });
-    }
-
-    //TODO add middleware with access token to secure api
-    loadStartMap() : Promise<StartMapInterface> {
-        return Axios.get(`${API_URL}/start-map`)
-            .then((res) => {
-                return res.data;
-            }).catch((err) => {
-                console.error(err);
-                throw err;
-            });
-    }
-
-    joinARoom(roomId: string, startX: number, startY: number, direction: string, moving: boolean): void {
         const point = new Point(startX, startY, direction, moving);
         this.lastPositionShared = point;
-        this.getSocket().emit(EventMessage.JOIN_ROOM, { roomId, position: {x: startX, y: startY, direction, moving }}, (userPositions: MessageUserPositionInterface[]) => {
+        const promise = new Promise<MessageUserPositionInterface[]>((resolve, reject) => {
-            this.GameManager.initUsersPosition(userPositions);
+            this.socket.emit(EventMessage.JOIN_ROOM, { roomId, position: {x: startX, y: startY, direction, moving }}, (userPositions: MessageUserPositionInterface[]) => {
+                //this.GameManager.initUsersPosition(userPositions);
+                resolve(userPositions);
             });
+        })
         this.lastRoom = roomId;
+        return promise;
     }
 
     sharePosition(x : number, y : number, direction : string, moving: boolean) : void{
@@ -263,42 +215,35 @@ export class Connection implements ConnectionInterface {
         }
         const point = new Point(x, y, direction, moving);
         this.lastPositionShared = point;
-        this.getSocket().emit(EventMessage.USER_POSITION, point);
+        this.socket.emit(EventMessage.USER_POSITION, point);
     }
 
-    private onUserJoins(): void {
+    public onUserJoins(callback: (message: MessageUserJoined) => void): void {
-        this.getSocket().on(EventMessage.JOIN_ROOM, (message: MessageUserJoined) => {
+        this.socket.on(EventMessage.JOIN_ROOM, callback);
-            this.GameManager.onUserJoins(message);
-        });
     }
 
-    private onUserMoved(): void {
+    public onUserMoved(callback: (message: MessageUserMovedInterface) => void): void {
-        this.getSocket().on(EventMessage.USER_MOVED, (message: MessageUserMovedInterface) => {
+        this.socket.on(EventMessage.USER_MOVED, callback);
-            this.GameManager.onUserMoved(message);
-        });
     }
 
-    private onUserLeft(): void {
+    public onUserLeft(callback: (userId: string) => void): void {
-        this.getSocket().on(EventMessage.USER_LEFT, (userId: string) => {
+        this.socket.on(EventMessage.USER_LEFT, callback);
-            this.GameManager.onUserLeft(userId);
-        });
     }
 
-    private groupUpdatedOrCreated(): void {
+    public onGroupUpdatedOrCreated(callback: (groupCreateUpdateMessage: GroupCreatedUpdatedMessageInterface) => void): void {
-        this.getSocket().on(EventMessage.GROUP_CREATE_UPDATE, (groupCreateUpdateMessage: GroupCreatedUpdatedMessageInterface) => {
+        this.socket.on(EventMessage.GROUP_CREATE_UPDATE, callback);
-            //console.log('Group ', groupCreateUpdateMessage.groupId, " position :", groupCreateUpdateMessage.position.x, groupCreateUpdateMessage.position.y)
-            this.GameManager.shareGroupPosition(groupCreateUpdateMessage);
-        })
     }
 
-    private groupDeleted(): void {
+    public onGroupDeleted(callback: (groupId: string) => void): void {
-        this.getSocket().on(EventMessage.GROUP_DELETE, (groupId: string) => {
+        this.socket.on(EventMessage.GROUP_DELETE, callback)
-            this.GameManager.deleteGroup(groupId);
+    }
-        })
+
+    public onConnectError(callback: (error: object) => void): void {
+        this.socket.on(EventMessage.CONNECT_ERROR, callback)
     }
 
     sendWebrtcSignal(signal: unknown, roomId: string, userId? : string|null, receiverId? : string) {
-        return this.getSocket().emit(EventMessage.WEBRTC_SIGNAL, {
+        return this.socket.emit(EventMessage.WEBRTC_SIGNAL, {
             userId: userId ? userId : this.userId,
             receiverId: receiverId ? receiverId : this.userId,
             roomId: roomId,
@@ -307,47 +252,53 @@ export class Connection implements ConnectionInterface {
     }
 
     receiveWebrtcStart(callback: (message: WebRtcStartMessageInterface) => void) {
-        this.getSocket().on(EventMessage.WEBRTC_START, callback);
+        this.socket.on(EventMessage.WEBRTC_START, callback);
     }
 
     receiveWebrtcSignal(callback: (message: WebRtcSignalMessageInterface) => void) {
-        return this.getSocket().on(EventMessage.WEBRTC_SIGNAL, callback);
+        return this.socket.on(EventMessage.WEBRTC_SIGNAL, callback);
     }
 
-    private errorMessage(): void {
+    public onServerDisconnected(callback: (reason: string) => void): void {
-        this.getSocket().on(EventMessage.MESSAGE_ERROR, (message: string) => {
+        /*this.socket.on(EventMessage.CONNECT_ERROR, (error: object) => {
-            console.error(EventMessage.MESSAGE_ERROR, message);
+            callback(error);
-        })
+        });*/
-    }
 
-    private disconnectServer(): void {
+        this.socket.on('disconnect', (reason: string) => {
-        this.getSocket().on(EventMessage.CONNECT_ERROR, () => {
+            if (reason === 'io client disconnect') {
-            this.GameManager.switchToDisconnectedScene();
+                // The client asks for disconnect, let's not trigger any event.
+                return;
+            }
+            callback(reason);
         });
 
-        this.getSocket().on(EventMessage.RECONNECTING, () => {
+        /*this.socket.on(EventMessage.CONNECT_ERROR, (error: object) => {
+            this.GameManager.switchToDisconnectedScene();
+        });*/
+
+        /*this.socket.on(EventMessage.RECONNECTING, () => {
             console.log('Trying to reconnect');
         });
 
-        this.getSocket().on(EventMessage.RECONNECT_ERROR, () => {
+        this.socket.on(EventMessage.RECONNECT_ERROR, () => {
             console.log('Error while trying to reconnect.');
         });
 
-        this.getSocket().on(EventMessage.RECONNECT_FAILED, () => {
+        this.socket.on(EventMessage.RECONNECT_FAILED, () => {
             console.error('Reconnection failed. Giving up.');
         });
 
-        this.getSocket().on(EventMessage.RECONNECT, () => {
+        this.socket.on(EventMessage.RECONNECT, () => {
             console.log('Reconnect event triggered');
             this.connectSocketServer();
             if (this.lastPositionShared === null) {
                 throw new Error('No last position shared found while reconnecting');
             }
             this.GameManager.reconnectToGameScene(this.lastPositionShared);
-        });
+        });*/
     }
 
     disconnectMessage(callback: (message: WebRtcDisconnectMessageInterface) => void): void {
-        this.getSocket().on(EventMessage.WEBRTC_DISCONNECT, callback);
+        this.socket.on(EventMessage.WEBRTC_DISCONNECT, callback);
     }
 }

front/src/Phaser/Game/GameManager.ts

@@ -1,24 +1,21 @@
 import {GameScene} from "./GameScene";
 import {
-    Connection, ConnectionInterface,
+    Connection,
     GroupCreatedUpdatedMessageInterface,
     ListMessageUserPositionInterface,
     MessageUserJoined,
     MessageUserMovedInterface,
     MessageUserPositionInterface,
     Point,
-    PointInterface
+    PointInterface, StartMapInterface
 } from "../../Connection";
 import {SimplePeer} from "../../WebRtc/SimplePeer";
 import {AddPlayerInterface} from "./AddPlayerInterface";
 import {ReconnectingScene, ReconnectingSceneName} from "../Reconnecting/ReconnectingScene";
 import ScenePlugin = Phaser.Scenes.ScenePlugin;
 import {Scene} from "phaser";
-
+import Axios from "axios";
-/*export enum StatusGameManagerEnum {
+import {API_URL} from "../../Enum/EnvironmentVariable";
-    IN_PROGRESS = 1,
-    CURRENT_USER_CREATED = 2
-}*/
 
 export interface HasMovedEvent {
     direction: string;
@@ -33,126 +30,32 @@ export interface MapObject {
 }
 
 export class GameManager {
-    //status: number;
-    private ConnectionInstance: Connection;
-    private currentGameScene: GameScene|null = null;
     private playerName: string;
-    SimplePeer : SimplePeer;
     private characterUserSelected: string;
 
-    constructor() {
+    public storePlayerDetails(name: string, characterUserSelected : string): void {
-        //this.status = StatusGameManagerEnum.IN_PROGRESS;
-    }
-
-    public connect(name: string, characterUserSelected : string): Promise<ConnectionInterface> {
         this.playerName = name;
         this.characterUserSelected = characterUserSelected;
-        this.ConnectionInstance = new Connection(this);
+    }
-        return this.ConnectionInstance.createConnection(name, characterUserSelected).then((data : ConnectionInterface) => {
+
-            this.SimplePeer = new SimplePeer(this.ConnectionInstance);
+    loadStartMap() : Promise<StartMapInterface> {
-            return data;
+        return Axios.get(`${API_URL}/start-map`)
+            .then((res) => {
+                return res.data;
             }).catch((err) => {
+                console.error(err);
                 throw err;
             });
     }
 
-    loadStartMap(){
-        return this.ConnectionInstance.loadStartMap().then((data) => {
-            return data;
-        }).catch((err) => {
-            throw err;
-        });
-    }
-
-    setCurrentGameScene(gameScene: GameScene) {
-        this.currentGameScene = gameScene;
-    }
-
-
-    /**
-     * Permit to create player in started room
-     */
-    /*createCurrentPlayer(): void {
-        //Get started room send by the backend
-        this.currentGameScene.createCurrentPlayer();
-        //this.status = StatusGameManagerEnum.CURRENT_USER_CREATED;
-    }*/
-
-    joinRoom(sceneKey: string, startX: number, startY: number, direction: string, moving: boolean){
-        this.ConnectionInstance.joinARoom(sceneKey, startX, startY, direction, moving);
-    }
-
-    onUserJoins(message: MessageUserJoined): void {
-        const userMessage: AddPlayerInterface = {
-            userId: message.userId,
-            character: message.character,
-            name: message.name,
-            position: message.position
-        }
-        this.getCurrentGameScene().addPlayer(userMessage);
-    }
-
-    onUserMoved(message: MessageUserMovedInterface): void {
-        this.getCurrentGameScene().updatePlayerPosition(message);
-    }
-
-    onUserLeft(userId: string): void {
-        this.getCurrentGameScene().removePlayer(userId);
-    }
-
-    initUsersPosition(usersPosition: MessageUserPositionInterface[]): void {
-        // Shall we wait for room to be loaded?
-        /*if (this.status === StatusGameManagerEnum.IN_PROGRESS) {
-            return;
-        }*/
-        try {
-            this.getCurrentGameScene().initUsersPosition(usersPosition)
-        } catch (e) {
-            console.error(e);
-        }
-    }
-
-    /**
-     * Share group position in game
-     */
-    shareGroupPosition(groupPositionMessage: GroupCreatedUpdatedMessageInterface): void {
-        /*if (this.status === StatusGameManagerEnum.IN_PROGRESS) {
-            return;
-        }*/
-        try {
-            this.getCurrentGameScene().shareGroupPosition(groupPositionMessage)
-        } catch (e) {
-            console.error(e);
-        }
-    }
-
-    deleteGroup(groupId: string): void {
-        /*if (this.status === StatusGameManagerEnum.IN_PROGRESS) {
-            return;
-        }*/
-        try {
-            this.getCurrentGameScene().deleteGroup(groupId)
-        } catch (e) {
-            console.error(e);
-        }
-    }
-
     getPlayerName(): string {
         return this.playerName;
     }
 
-    getPlayerId(): string|null {
-        return this.ConnectionInstance.userId;
-    }
-
     getCharacterSelected(): string {
         return this.characterUserSelected;
     }
 
-    pushPlayerPosition(event: HasMovedEvent) {
-        this.ConnectionInstance.sharePosition(event.x, event.y, event.direction, event.moving);
-    }
-
     loadMap(mapUrl: string, scene: Phaser.Scenes.ScenePlugin, instance: string): string {
         const sceneKey = GameScene.getMapKeyByUrl(mapUrl);
 
@@ -163,64 +66,6 @@ export class GameManager {
         }
         return sceneKey;
     }
-
-    private oldSceneKey : string;
-    private oldMapUrlFile : string;
-    private oldInstance : string;
-    private scenePlugin: ScenePlugin;
-    private reconnectScene: Scene|null = null;
-    switchToDisconnectedScene(): void {
-        if (this.currentGameScene === null) {
-            return;
-        }
-        console.log('Switching to disconnected scene');
-        this.oldSceneKey = this.currentGameScene.scene.key;
-        this.oldMapUrlFile = this.currentGameScene.MapUrlFile;
-        this.oldInstance = this.currentGameScene.instance;
-        this.currentGameScene.scene.start(ReconnectingSceneName);
-        this.reconnectScene = this.currentGameScene.scene.get(ReconnectingSceneName);
-        // Let's completely delete an purge the disconnected scene. We will start again from 0.
-        this.currentGameScene.scene.remove(this.oldSceneKey);
-        this.scenePlugin = this.currentGameScene.scene;
-        this.currentGameScene = null;
-    }
-
-    private timeoutCallback: NodeJS.Timeout|null = null;
-    reconnectToGameScene(lastPositionShared: PointInterface): void {
-        if (this.timeoutCallback !== null) {
-            console.log('Reconnect called but setTimeout in progress for the reconnection');
-            return;
-        }
-        if (this.reconnectScene === null) {
-            console.log('Reconnect called without switchToDisconnectedScene called first');
-
-            if (!this.currentGameScene) {
-                console.error('Reconnect called but we are not on a GameScene');
-                return;
-            }
-
-            // In case we are asked to reconnect even if switchToDisconnectedScene was not triggered (can happen when a laptop goes to sleep)
-            this.switchToDisconnectedScene();
-            // Wait a bit for scene to load. Otherwise, starting ReconnectingSceneName and then starting GameScene one after the other fails for some reason.
-            this.timeoutCallback = setTimeout(() => {
-                console.log('Reconnecting to game scene from setTimeout');
-                this.timeoutCallback = null;
-                this.reconnectToGameScene(lastPositionShared);
-            }, 500);
-            return;
-        }
-        console.log('Reconnecting to game scene');
-        const game : Phaser.Scene = GameScene.createFromUrl(this.oldMapUrlFile, this.oldInstance);
-        this.reconnectScene.scene.add(this.oldSceneKey, game, true, { initPosition: lastPositionShared });
-        this.reconnectScene = null;
-    }
-
-    private getCurrentGameScene(): GameScene {
-        if (this.currentGameScene === null) {
-            throw new Error('No current game scene enabled');
-        }
-        return this.currentGameScene;
-    }
 }
 
 export const gameManager = new GameManager();

front/src/Phaser/Game/GameScene.ts

@@ -1,6 +1,7 @@
 import {GameManager, gameManager, HasMovedEvent} from "./GameManager";
 import {
-    GroupCreatedUpdatedMessageInterface,
+    Connection,
+    GroupCreatedUpdatedMessageInterface, MessageUserJoined,
     MessageUserMovedInterface,
     MessageUserPositionInterface, PointInterface, PositionInterface
 } from "../../Connection";
@@ -23,6 +24,8 @@ import {PlayersPositionInterpolator} from "./PlayersPositionInterpolator";
 import {RemotePlayer} from "../Entity/RemotePlayer";
 import GameObject = Phaser.GameObjects.GameObject;
 import { Queue } from 'queue-typescript';
+import {SimplePeer} from "../../WebRtc/SimplePeer";
+import {ReconnectingSceneName} from "../Reconnecting/ReconnectingScene";
 
 
 export enum Textures {
@@ -81,6 +84,9 @@ export class GameScene extends Phaser.Scene {
     pendingEvents: Queue<InitUserPositionEventInterface|AddPlayerEventInterface|RemovePlayerEventInterface|UserMovedEventInterface|GroupCreatedUpdatedEventInterface|DeleteGroupEventInterface> = new Queue<InitUserPositionEventInterface|AddPlayerEventInterface|RemovePlayerEventInterface|UserMovedEventInterface|GroupCreatedUpdatedEventInterface|DeleteGroupEventInterface>();
     private initPosition: PositionInterface|null = null;
     private playersPositionInterpolator = new PlayersPositionInterpolator();
+    private connection: Connection;
+    private simplePeer : SimplePeer;
+    private connectionPromise: Promise<Connection>
 
     MapKey: string;
     MapUrlFile: string;
@@ -99,14 +105,17 @@ export class GameScene extends Phaser.Scene {
     private PositionNextScene: Array<Array<{ key: string, hash: string }>> = new Array<Array<{ key: string, hash: string }>>();
     private startLayerName: string|undefined;
 
-    static createFromUrl(mapUrlFile: string, instance: string): GameScene {
+    static createFromUrl(mapUrlFile: string, instance: string, key: string|null = null): GameScene {
-        const key = GameScene.getMapKeyByUrl(mapUrlFile);
+        const mapKey = GameScene.getMapKeyByUrl(mapUrlFile);
-        return new GameScene(key, mapUrlFile, instance);
+        if (key === null) {
+            key = mapKey;
+        }
+        return new GameScene(mapKey, mapUrlFile, instance, key);
     }
 
-    constructor(MapKey : string, MapUrlFile: string, instance: string) {
+    constructor(MapKey : string, MapUrlFile: string, instance: string, key: string) {
         super({
-            key: MapKey
+            key: key
         });
 
         this.GameManager = gameManager;
@@ -116,12 +125,11 @@ export class GameScene extends Phaser.Scene {
 
         this.MapKey = MapKey;
         this.MapUrlFile = MapUrlFile;
-        this.RoomId = this.instance + '__' + this.MapKey;
+        this.RoomId = this.instance + '__' + MapKey;
     }
 
     //hook preload scene
     preload(): void {
-        this.GameManager.setCurrentGameScene(this);
         this.load.on('filecomplete-tilemapJSON-'+this.MapKey, (key: string, type: string, data: unknown) => {
             this.onMapLoad(data);
         });
@@ -144,6 +152,67 @@ export class GameScene extends Phaser.Scene {
         });
 
         this.load.bitmapFont('main_font', 'resources/fonts/arcade.png', 'resources/fonts/arcade.xml');
+
+        this.connectionPromise = Connection.createConnection(gameManager.getPlayerName(), gameManager.getCharacterSelected()).then((connection : Connection) => {
+            this.connection = connection;
+
+            connection.onUserJoins((message: MessageUserJoined) => {
+                const userMessage: AddPlayerInterface = {
+                    userId: message.userId,
+                    character: message.character,
+                    name: message.name,
+                    position: message.position
+                }
+                this.addPlayer(userMessage);
+            });
+
+            connection.onUserMoved((message: MessageUserMovedInterface) => {
+                this.updatePlayerPosition(message);
+            });
+
+            connection.onUserLeft((userId: string) => {
+                this.removePlayer(userId);
+            });
+
+            connection.onGroupUpdatedOrCreated((groupPositionMessage: GroupCreatedUpdatedMessageInterface) => {
+                this.shareGroupPosition(groupPositionMessage);
+            })
+
+            connection.onGroupDeleted((groupId: string) => {
+                try {
+                    this.deleteGroup(groupId);
+                } catch (e) {
+                    console.error(e);
+                }
+            })
+
+            connection.onServerDisconnected(() => {
+                console.log('Player disconnected from server. Reloading scene.');
+
+                this.simplePeer.closeAllConnections();
+
+                const key = 'somekey'+Math.round(Math.random()*10000);
+                const game : Phaser.Scene = GameScene.createFromUrl(this.MapUrlFile, this.instance, key);
+                this.scene.add(key, game, true,
+                    {
+                        initPosition: {
+                            x: this.CurrentPlayer.x,
+                            y: this.CurrentPlayer.y
+                        }
+                    });
+
+                this.scene.stop(this.scene.key);
+                this.scene.remove(this.scene.key);
+            })
+
+            // When connection is performed, let's connect SimplePeer
+            this.simplePeer = new SimplePeer(this.connection);
+
+            this.scene.wake();
+            this.scene.sleep(ReconnectingSceneName);
+
+            return connection;
+        });
     }
 
     // FIXME: we need to put a "unknown" instead of a "any" and validate the structure of the JSON we are receiving.
@@ -272,6 +341,17 @@ export class GameScene extends Phaser.Scene {
             path += '#'+this.startLayerName;
         }
         window.history.pushState({}, 'WorkAdventure', path);
+
+        // Let's pause the scene if the connection is not established yet
+        if (this.connection === undefined) {
+            // Let's wait 0.5 seconds before printing the "connecting" screen to avoid blinking
+            setTimeout(() => {
+                if (this.connection === undefined) {
+                    this.scene.sleep();
+                    this.scene.launch(ReconnectingSceneName);
+                }
+            }, 500);
+        }
     }
 
     private getExitSceneUrl(layer: ITiledMapLayer): string|undefined {
@@ -430,10 +510,14 @@ export class GameScene extends Phaser.Scene {
         this.createCollisionObject();
 
         //join room
-        this.GameManager.joinRoom(this.RoomId, this.startX, this.startY, PlayerAnimationNames.WalkDown, false);
+        this.connectionPromise.then((connection: Connection) => {
+            connection.joinARoom(this.RoomId, this.startX, this.startY, PlayerAnimationNames.WalkDown, false).then((userPositions: MessageUserPositionInterface[]) => {
+                this.initUsersPosition(userPositions);
+            });
 
             //listen event to share position of user
             this.CurrentPlayer.on(hasMovedEventName, this.pushPlayerPosition.bind(this))
+        });
     }
 
     pushPlayerPosition(event: HasMovedEvent) {
@@ -465,7 +549,7 @@ export class GameScene extends Phaser.Scene {
     private doPushPlayerPosition(event: HasMovedEvent): void {
         this.lastMoveEventSent = event;
         this.lastSentTick = this.currentTick;
-        this.GameManager.pushPlayerPosition(event);
+        this.connection.sharePosition(event.x, event.y, event.direction, event.moving);
     }
 
     EventToClickOnTile(){
@@ -525,6 +609,8 @@ export class GameScene extends Phaser.Scene {
         const nextSceneKey = this.checkToExit();
         if(nextSceneKey){
             // We are completely destroying the current scene to avoid using a half-backed instance when coming back to the same map.
+            this.connection.closeConnection();
+            this.scene.stop();
             this.scene.remove(this.scene.key);
             this.scene.start(nextSceneKey.key, {
                 startLayerName: nextSceneKey.hash
@@ -549,7 +635,7 @@ export class GameScene extends Phaser.Scene {
     /**
      * Called by the connexion when the full list of user position is received.
      */
-    public initUsersPosition(usersPosition: MessageUserPositionInterface[]): void {
+    private initUsersPosition(usersPosition: MessageUserPositionInterface[]): void {
         this.pendingEvents.enqueue({
             type: "InitUserPositionEvent",
             event: usersPosition
@@ -561,7 +647,7 @@ export class GameScene extends Phaser.Scene {
      * Put all the players on the map on map load.
      */
     private doInitUsersPosition(usersPosition: MessageUserPositionInterface[]): void {
-        const currentPlayerId = this.GameManager.getPlayerId();
+        const currentPlayerId = this.connection.userId;
 
         // clean map
         this.MapPlayersByKey.forEach((player: RemotePlayer) => {
@@ -633,7 +719,6 @@ export class GameScene extends Phaser.Scene {
     }
 
     private doRemovePlayer(userId: string) {
-        //console.log('Removing player ', userId)
         const player = this.MapPlayersByKey.get(userId);
         if (player === undefined) {
             console.error('Cannot find user with id ', userId);

front/src/Phaser/Login/SelectCharacterScene.ts

@@ -117,7 +117,8 @@ export class SelectCharacterScene extends Phaser.Scene {
     }
 
     private async login(name: string): Promise<StartMapInterface> {
-        return gameManager.connect(name, this.selectedPlayer.texture.key).then(() => {
+        gameManager.storePlayerDetails(name, this.selectedPlayer.texture.key);
+
         // 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) {
@@ -141,10 +142,6 @@ export class SelectCharacterScene extends Phaser.Scene {
                 throw err;
             });
         }
-        }).catch((err) => {
-            console.error(err);
-            throw err;
-        });
     }
 
     /**

front/src/WebRtc/SimplePeer.ts

@@ -1,5 +1,5 @@
 import {
-    ConnectionInterface,
+    Connection,
     WebRtcDisconnectMessageInterface,
     WebRtcSignalMessageInterface,
     WebRtcStartMessageInterface
@@ -18,7 +18,7 @@ export interface UserSimplePeer{
  * This class manages connections to all the peers in the same group as me.
  */
 export class SimplePeer {
-    private Connection: ConnectionInterface;
+    private Connection: Connection;
     private WebRtcRoomId: string;
     private Users: Array<UserSimplePeer> = new Array<UserSimplePeer>();
 
@@ -26,7 +26,7 @@ export class SimplePeer {
 
     private PeerConnectionArray: Map<string, SimplePeerNamespace.Instance> = new Map<string, SimplePeerNamespace.Instance>();
 
-    constructor(Connection: ConnectionInterface, WebRtcRoomId: string = "test-webrtc") {
+    constructor(Connection: Connection, WebRtcRoomId: string = "test-webrtc") {
         this.Connection = Connection;
         this.WebRtcRoomId = WebRtcRoomId;
         this.MediaManager = new MediaManager((stream : MediaStream) => {
@@ -209,6 +209,12 @@ export class SimplePeer {
         }
     }
 
+    public closeAllConnections() {
+        for (const userId of this.PeerConnectionArray.keys()) {
+            this.closeConnection(userId);
+        }
+    }
+
     /**
      *
      * @param userId

front/tsconfig.json

@@ -6,6 +6,7 @@
     "noImplicitAny": true,
     "module": "CommonJS",
     "target": "es5",
+    "downlevelIteration": true,
     "jsx": "react",
     "allowJs": true,