Make Multiplayer extension independent from p2p extension + add message compression

Extensions/Multiplayer/JsExtension.js

@@ -46,8 +46,8 @@ module.exports = {
       .addCodeOnlyParameter('currentScene', '')
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -74,8 +74,8 @@ module.exports = {
       .addParameter('yesorno', _('Show close button'), '', false)
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -102,8 +102,8 @@ module.exports = {
       )
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -132,8 +132,8 @@ module.exports = {
       .addParameter('string', _('Message name'), '', false)
       .addParameter('string', _('Message content'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -162,8 +162,8 @@ module.exports = {
       .addParameter('string', _('Message name'), '', false)
       .addParameter('variable', _('Variable'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -194,8 +194,8 @@ module.exports = {
       .addParameter('string', _('Message name'), '', false)
       .addParameter('variable', _('Variable'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -222,8 +222,8 @@ module.exports = {
       )
       .addCodeOnlyParameter('currentScene', '')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -247,8 +247,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -272,8 +272,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -297,8 +297,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -325,8 +325,8 @@ module.exports = {
       )
       .addParameter('string', _('Message name'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -352,8 +352,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -377,8 +377,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -403,8 +403,8 @@ module.exports = {
       )
       .getCodeExtraInformation()
       .addParameter('number', _('Player number'), '', false)
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -429,8 +429,8 @@ module.exports = {
       )
       .addParameter('string', _('Message name'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -453,8 +453,8 @@ module.exports = {
       )
       .addParameter('string', _('Message name'), '', false)
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -477,8 +477,8 @@ module.exports = {
         _('Lobbies'),
         'JsPlatform/Extensions/multiplayer.svg'
       )
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -502,8 +502,8 @@ module.exports = {
         _('Lobbies'),
         'JsPlatform/Extensions/multiplayer.svg'
       )
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -532,8 +532,8 @@ module.exports = {
         false
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -555,8 +555,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -584,8 +584,8 @@ module.exports = {
         false
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -607,8 +607,8 @@ module.exports = {
         'JsPlatform/Extensions/multiplayer.svg'
       )
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -637,8 +637,8 @@ module.exports = {
         'number',
         gd.ParameterOptions.makeNewOptions().setDescription(_('Player number'))
       )
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -669,8 +669,8 @@ module.exports = {
       .addParameter('variable', _('Variable'), '', false)
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -700,8 +700,8 @@ module.exports = {
       .addParameter('variable', _('Variable'), '', false)
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -731,8 +731,8 @@ module.exports = {
       .addParameter('variable', _('Variable'), '', false)
       .setHelpPath('/all-features/multiplayer')
       .getCodeExtraInformation()
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )
@@ -837,8 +837,8 @@ module.exports = {
         multiplayerObjectBehavior,
         sharedData
       )
-      .setIncludeFile('Extensions/P2P/A_peer.js')
+      .setIncludeFile('Extensions/Multiplayer/peer.js')
-      .addIncludeFile('Extensions/P2P/B_p2ptools.js')
+      .addIncludeFile('Extensions/Multiplayer/peerJsHelper.js')
       .addIncludeFile(
         'Extensions/PlayerAuthentication/playerauthenticationcomponents.js'
       )

Extensions/Multiplayer/multiplayerVariablesManager.ts

@@ -228,7 +228,7 @@ namespace gdjs {
         // Before sending the change owner message, if we are becoming the new owner,
         // we want to ensure this message is acknowledged, by everyone we're connected to.
         if (variableData.newVariableOwner === currentPlayerNumber) {
-          const otherPeerIds = gdjs.evtTools.p2p.getAllPeers();
+          const otherPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
           const variableOwnerChangedMessageName = gdjs.multiplayerMessageManager.createVariableOwnerChangedMessageNameFromChangeVariableOwnerMessage(
             messageName
           );
@@ -243,14 +243,12 @@ namespace gdjs {
         }
 
         debugLogger.info('Sending change owner message', messageName);
-        const connectedPeerIds = gdjs.evtTools.p2p.getAllPeers();
+        const connectedPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
-        for (const peerId of connectedPeerIds) {
+        gdjs.multiplayerMessageManager.sendDataTo(
-          gdjs.multiplayerMessageManager.sendDataTo(
+          connectedPeerIds,
-            peerId,
+          messageName,
-            messageName,
+          messageData
-            messageData
+        );
-          );
-        }
 
         // Remove the variable from the list of variables ownership changes to sync.
         delete variableOwnershipChangesToSyncAtEndOfFrame[variableNetworkId];

Extensions/Multiplayer/multiplayerobjectruntimebehavior.ts

@@ -101,17 +101,19 @@ namespace gdjs {
       }, this._timeBeforeDestroyingObjectWithoutNetworkIdInMs);
     }
 
-    private _sendDataToPeersWithIncreasedClock(
+    private _sendDataToPeersWithIncreasedClock = async (
       messageName: string,
       data: Object
-    ) {
+    ) => {
       this._clock++;
       data['_clock'] = this._clock;
-      const connectedPeerIds = gdjs.evtTools.p2p.getAllPeers();
+      const connectedPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
-      for (const peerId of connectedPeerIds) {
+      await gdjs.multiplayerMessageManager.sendDataTo(
-        gdjs.multiplayerMessageManager.sendDataTo(peerId, messageName, data);
+        connectedPeerIds,
-      }
+        messageName,
-    }
+        data
+      );
+    };
 
     private _isOwnerAsPlayerOrHost() {
       const currentPlayerNumber = gdjs.multiplayer.getCurrentPlayerNumber();
@@ -453,7 +455,7 @@ namespace gdjs {
       // If we are player 1, we are connected to everyone, so we expect an acknowledgment from everyone.
       // If we are another player, we are only connected to player 1, so we expect an acknowledgment from player 1.
       // In both cases, this represents the list of peers the current user is connected to.
-      const otherPeerIds = gdjs.evtTools.p2p.getAllPeers();
+      const otherPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
       const {
         messageName: destroyMessageName,
         messageData: destroyMessageData,
@@ -563,7 +565,7 @@ namespace gdjs {
       // If we are another player, we are only connected to player 1, so we expect an acknowledgment from player 1.
       // In both cases, this represents the list of peers the current user is connected to.
       if (newObjectPlayerNumber === currentPlayerNumber) {
-        const otherPeerIds = gdjs.evtTools.p2p.getAllPeers();
+        const otherPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
         const changeOwnerAcknowledgedMessageName = gdjs.multiplayerMessageManager.createInstanceOwnerChangedMessageNameFromChangeInstanceOwnerMessage(
           messageName
         );
@@ -586,6 +588,9 @@ namespace gdjs {
       // If we are the new owner, also send directly an update of the position,
       // so that the object is immediately moved on the screen and we don't wait for the next tick.
       if (newObjectPlayerNumber === currentPlayerNumber) {
+        debugLogger.info(
+          'Sending update message to move the object immediately.'
+        );
         const objectNetworkSyncData = this.owner.getNetworkSyncData();
         const {
           messageName: updateMessageName,

Extensions/Multiplayer/multiplayertools.ts

@@ -562,7 +562,7 @@ namespace gdjs {
       // When the connectionId is received, initialise PeerJS so players can connect to each others afterwards.
       if (validIceServers.length) {
         for (const server of validIceServers) {
-          gdjs.evtTools.p2p.useCustomICECandidate(
+          gdjs.multiplayerPeerJsHelper.useCustomICECandidate(
             server.urls,
             server.username,
             server.credential
@@ -570,7 +570,7 @@ namespace gdjs {
         }
       }
       if (brokerServerConfig) {
-        gdjs.evtTools.p2p.useCustomBrokerServer(
+        gdjs.multiplayerPeerJsHelper.useCustomBrokerServer(
           brokerServerConfig.hostname,
           brokerServerConfig.port,
           brokerServerConfig.path,
@@ -578,7 +578,7 @@ namespace gdjs {
           brokerServerConfig.secure
         );
       } else {
-        gdjs.evtTools.p2p.useDefaultBrokerServer();
+        gdjs.multiplayerPeerJsHelper.useDefaultBrokerServer();
       }
 
       _connectionId = connectionId;
@@ -705,7 +705,7 @@ namespace gdjs {
       // It is possible the connection to other players didn't work.
       // If that's the case, show an error message and leave the lobby.
       // If we are the host, still start the game, as this allows a player to test the game alone.
-      const allConnectedPeers = gdjs.evtTools.p2p.getAllPeers();
+      const allConnectedPeers = gdjs.multiplayerPeerJsHelper.getAllPeers();
       if (!isPlayerHost() && allConnectedPeers.length === 0) {
         gdjs.multiplayerComponents.displayConnectionErrorNotification(
           runtimeScene
@@ -775,7 +775,7 @@ namespace gdjs {
       }
 
       // Disconnect from any P2P connections.
-      gdjs.evtTools.p2p.disconnectFromAllPeers();
+      gdjs.multiplayerPeerJsHelper.disconnectFromAllPeers();
 
       // Clear the expected acknowledgments, as the game is ending.
       gdjs.multiplayerMessageManager.clearExpectedMessageAcknowledgements();
@@ -787,7 +787,7 @@ namespace gdjs {
      */
     const handlePeerIdEvent = function (peerId: string) {
       // When a peerId is received, trigger a P2P connection with the peer.
-      const currentPeerId = gdjs.evtTools.p2p.getCurrentId();
+      const currentPeerId = gdjs.multiplayerPeerJsHelper.getCurrentId();
       if (!currentPeerId) {
         logger.error(
           'No peerId found, the player does not seem connected to the broker server.'
@@ -800,7 +800,7 @@ namespace gdjs {
         return;
       }
 
-      gdjs.evtTools.p2p.connect(peerId);
+      gdjs.multiplayerPeerJsHelper.connect(peerId);
     };
 
     /**
@@ -862,6 +862,8 @@ namespace gdjs {
       // Consider the game is ended, so that we don't listen to other players disconnecting.
       _isLobbyGameRunning = false;
 
+      logger.info('Ending the lobby game.');
+
       // Inform the players that the game has ended.
       gdjs.multiplayerMessageManager.sendEndGameMessage();
 
@@ -912,7 +914,7 @@ namespace gdjs {
         return;
       }
 
-      const peerId = gdjs.evtTools.p2p.getCurrentId();
+      const peerId = gdjs.multiplayerPeerJsHelper.getCurrentId();
       if (!peerId) {
         logger.error(
           "No peerId found, the player doesn't seem connected to the broker server."

Extensions/Multiplayer/peerJsHelper.ts

@@ -0,0 +1,414 @@
+/// <reference path="peerjs.d.ts" />
+namespace gdjs {
+  const logger = new gdjs.Logger('Multiplayer');
+  export namespace multiplayerPeerJsHelper {
+    /**
+     * The type of the data that is sent across peerjs.
+     * We use UInt8Array to send compressed data, but we only manipulate objects once received.
+     */
+    type NetworkMessage = {
+      messageName: string;
+      data: Uint8Array;
+    };
+
+    /**
+     * Helper to discard invalid messages when received.
+     */
+    const isValidNetworkMessage = (
+      message: unknown
+    ): message is NetworkMessage =>
+      typeof message === 'object' &&
+      message !== null &&
+      typeof message['messageName'] === 'string' &&
+      typeof message['data'] === 'object';
+
+    export interface IMessageData {
+      readonly data: any; // The data sent with the message, an object with unknown content.
+      readonly sender: String;
+      getData(): any;
+      getSender(): string;
+    }
+    /**
+     * The data bound to a message name.
+     */
+    export class MessageData implements IMessageData {
+      public readonly data: any;
+      public readonly sender: string;
+      constructor(data: object, sender: string) {
+        this.data = data;
+        this.sender = sender;
+      }
+      public getData(): any {
+        return this.data;
+      }
+      public getSender(): string {
+        return this.sender;
+      }
+    }
+
+    export interface IMessagesList {
+      getName(): string;
+      getMessages(): IMessageData[];
+      pushMessage(data: object, sender: string): void;
+    }
+    export class MessagesList implements IMessagesList {
+      private readonly data: IMessageData[] = [];
+      private readonly messageName: string;
+
+      constructor(messageName: string) {
+        this.messageName = messageName;
+      }
+
+      public getName(): string {
+        return this.messageName;
+      }
+
+      public getMessages(): IMessageData[] {
+        return this.data;
+      }
+
+      public pushMessage(data: object, sender: string): void {
+        this.data.push(new MessageData(data, sender));
+      }
+    }
+
+    /**
+     * The peer to peer configuration.
+     */
+    let peerConfig: Peer.PeerJSOption = { debug: 1 };
+
+    /**
+     * The p2p client.
+     */
+    let peer: Peer<NetworkMessage> | null = null;
+
+    /**
+     * All connected p2p clients, keyed by their ID.
+     */
+    const connections = new Map<string, Peer.DataConnection<NetworkMessage>>();
+
+    /**
+     * Contains a map of message triggered by other p2p clients.
+     * It is keyed by the event name.
+     */
+    const allMessages = new Map<string, IMessagesList>();
+
+    /**
+     * True if PeerJS is initialized and ready.
+     */
+    let ready = false;
+
+    /**
+     * List of IDs of peers that just disconnected.
+     */
+    const justDisconnectedPeers: string[] = [];
+
+    /**
+     * List of IDs of peers that just remotely initiated a connection.
+     */
+    const justConnectedPeers: string[] = [];
+
+    /**
+     * Helper function to compress data sent over the network.
+     */
+    async function compressData(data: object): Promise<Uint8Array> {
+      const jsonString = JSON.stringify(data); // Convert object to JSON string
+      const encoder = new TextEncoder();
+      const array = encoder.encode(jsonString); // Convert string to Uint8Array
+
+      // @ts-ignore - As of 09/2023 the CompressionStream is now available in all browsers.
+      const cs = new CompressionStream('gzip'); // Create a CompressionStream with gzip
+      const writer = cs.writable.getWriter();
+      writer.write(array);
+      writer.close();
+
+      const compressedStream = cs.readable;
+      const reader = compressedStream.getReader();
+      const chunks: any[] = [];
+
+      while (true) {
+        const { done, value } = await reader.read();
+        if (done) break;
+        chunks.push(value);
+      }
+
+      const compressedData = new Uint8Array(
+        chunks.reduce((acc, chunk) => acc.concat(Array.from(chunk)), [])
+      );
+      return compressedData;
+    }
+
+    /**
+     * Helper function to decompress data received over the network.
+     * It returns the parsed JSON object, if valid, or undefined.
+     */
+    async function decompressData(
+      compressedData: Uint8Array
+    ): Promise<object | undefined> {
+      // @ts-ignore - As of 09/2023 the DecompressionStream is now available in all browsers.
+      const ds = new DecompressionStream('gzip'); // Create a DecompressionStream with gzip
+      const writer = ds.writable.getWriter();
+      writer.write(compressedData);
+      writer.close();
+
+      const decompressedStream = ds.readable;
+      const reader = decompressedStream.getReader();
+      const chunks: any[] = [];
+
+      while (true) {
+        const { done, value } = await reader.read();
+        if (done) break;
+        chunks.push(value);
+      }
+
+      const decompressedData = new Uint8Array(
+        chunks.reduce((acc, chunk) => acc.concat(Array.from(chunk)), [])
+      );
+      const decoder = new TextDecoder();
+      const jsonStringData = decoder.decode(decompressedData); // Convert Uint8Array back to string
+      try {
+        const parsedData = JSON.parse(jsonStringData);
+        return parsedData;
+      } catch (e) {
+        logger.error(`Error while parsing message: ${e.toString()}`);
+        return;
+      }
+    }
+
+    /**
+     * Helper function to get the messages list for a given message name.
+     */
+    export const getOrCreateMessagesList = (
+      messageName: string
+    ): IMessagesList => {
+      const messagesList = allMessages.get(messageName);
+      if (messagesList) return messagesList;
+      const newMessagesList = new MessagesList(messageName);
+      allMessages.set(messageName, newMessagesList);
+      return newMessagesList;
+    };
+
+    /**
+     * Internal function called when a connection with a remote peer is initiated.
+     * @param connection The DataConnection of the peer
+     */
+    const _onConnect = (connection: Peer.DataConnection<NetworkMessage>) => {
+      connections.set(connection.peer, connection);
+      connection.on('data', async (data) => {
+        if (isValidNetworkMessage(data)) {
+          const messagesList = getOrCreateMessagesList(data.messageName);
+          const messageSender = connection.peer;
+          const decompressedData = await decompressData(data.data);
+          if (!decompressedData) return;
+
+          messagesList.pushMessage(decompressedData, messageSender);
+        }
+      });
+
+      // Close event is only for graceful disconnection,
+      // but we want onDisconnect to trigger for any type of disconnection,
+      // so we register a listener for both event types.
+      connection.on('error', () => {
+        _onDisconnect(connection.peer);
+      });
+      connection.on('close', () => {
+        _onDisconnect(connection.peer);
+      });
+
+      // Regularly check for disconnection as the built in way is not reliable.
+      (function disconnectChecker() {
+        if (
+          connection.peerConnection &&
+          (connection.peerConnection.connectionState === 'failed' ||
+            connection.peerConnection.connectionState === 'disconnected' ||
+            connection.peerConnection.connectionState === 'closed')
+        ) {
+          _onDisconnect(connection.peer);
+        } else {
+          setTimeout(disconnectChecker, 1000);
+        }
+      })();
+    };
+
+    /**
+     * Internal function called when a remote client disconnects.
+     * @param connectionID The ID of the peer that disconnected.
+     */
+    const _onDisconnect = (connectionID: string) => {
+      if (!connections.has(connectionID)) return;
+      justDisconnectedPeers.push(connectionID);
+      connections.delete(connectionID);
+    };
+
+    /**
+     * Internal function called to initialize PeerJS after it
+     * has been configured.
+     */
+    const loadPeerJS = () => {
+      if (peer !== null) return;
+      peer = new Peer(peerConfig);
+      peer.on('open', () => {
+        ready = true;
+      });
+      peer.on('error', (errorMessage) => {
+        logger.error('PeerJS error:', errorMessage);
+      });
+      peer.on('connection', (connection) => {
+        connection.on('open', () => {
+          _onConnect(connection);
+          justConnectedPeers.push(connection.peer);
+        });
+      });
+      peer.on('close', () => {
+        peer = null;
+        loadPeerJS();
+      });
+      peer.on('disconnected', peer.reconnect);
+    };
+
+    /**
+     * Connects to another p2p client.
+     * @param id - The other client's ID.
+     */
+    export const connect = (id: string) => {
+      if (peer === null) return;
+      const connection = peer.connect(id);
+      connection.on('open', () => {
+        _onConnect(connection);
+      });
+    };
+
+    /**
+     * Disconnects from all other p2p clients.
+     */
+    export const disconnectFromAllPeers = () => {
+      for (const connection of connections.values()) connection.close();
+    };
+
+    /**
+     * Send a message to a specific peer.
+     * @param ids - The IDs of the clients to send the event to.
+     * @param messageName - The event to trigger.
+     * @param eventData - Additional data to send with the event.
+     */
+    export const sendDataTo = async (
+      ids: string[],
+      messageName: string,
+      messageData: object
+    ) => {
+      if (!ids.length) return;
+
+      const compressedData = await compressData(messageData);
+
+      for (const id of ids) {
+        const connection = connections.get(id);
+        if (connection) {
+          connection.send({
+            messageName,
+            data: compressedData,
+          });
+        }
+      }
+    };
+
+    export const getAllMessagesMap = () => allMessages;
+
+    /**
+     * Connects to a custom broker server.
+     * @param host The host of the broker server.
+     * @param port The port of the broker server.
+     * @param path The path (part of the url after the host) to the broker server.
+     * @param key Optional password to connect to the broker server.
+     * @param ssl Use ssl?
+     */
+    export const useCustomBrokerServer = (
+      host: string,
+      port: number,
+      path: string,
+      key: string,
+      ssl: boolean
+    ) => {
+      Object.assign(peerConfig, {
+        host,
+        port,
+        path,
+        secure: ssl,
+        // All servers have "peerjs" as default key
+        key: key.length === 0 ? 'peerjs' : key,
+      });
+      loadPeerJS();
+    };
+
+    export const useDefaultBrokerServer = loadPeerJS;
+
+    /**
+     * Adds an ICE server candidate, and removes the default ones provided by PeerJs. Must be called before connecting to a broker.
+     * @param urls The URL of the STUN/TURN server.
+     * @param username An optional username to send to the server.
+     * @param credential An optional password to send to the server.
+     */
+    export const useCustomICECandidate = (
+      urls: string,
+      username?: string,
+      credential?: string
+    ) => {
+      peerConfig.config = peerConfig.config || {};
+      peerConfig.config.iceServers = peerConfig.config.iceServers || [];
+      peerConfig.config.iceServers.push({
+        urls,
+        username,
+        credential,
+      });
+    };
+
+    /**
+     * Forces the usage of a relay (TURN) server, to avoid sharing IP addresses with the other peers.
+     * @param shouldUseRelayServer Whether relay-only should be enabled or disabled.
+     */
+    export const forceUseRelayServer = (shouldUseRelayServer: boolean) => {
+      peerConfig.config = peerConfig.config || {};
+      peerConfig.config.iceTransportPolicy = shouldUseRelayServer
+        ? 'relay'
+        : 'all';
+    };
+
+    /**
+     * Returns the own current peer ID.
+     * @see Peer.id
+     */
+    export const getCurrentId = (): string => {
+      if (peer == undefined) return '';
+      return peer.id || '';
+    };
+
+    /**
+     * Returns true once PeerJS finished initialization.
+     * @see ready
+     */
+    export const isReady = () => ready;
+
+    /**
+     * Return any disconnected peers.
+     */
+    export const getJustDisconnectedPeers = () => justDisconnectedPeers;
+
+    /**
+     * Returns the list of all currently connected peers.
+     */
+    export const getAllPeers = () => Array.from(connections.keys());
+
+    gdjs.callbacksRuntimeScenePostEvents.push(() => {
+      // Clear the list of messages at the end of the frame, assuming they've been all processed.
+      for (const messagesList of allMessages.values()) {
+        messagesList.getMessages().length = 0;
+      }
+      // Clear the list of just connected and disconnected peers.
+      if (justDisconnectedPeers.length > 0) {
+        justDisconnectedPeers.length = 0;
+      }
+      if (justConnectedPeers.length > 0) {
+        justConnectedPeers.length = 0;
+      }
+    });
+  }
+}

Extensions/Multiplayer/peerjs.d.ts

@@ -0,0 +1,509 @@
+/**
+ * Minimal `EventEmitter` interface that is molded against the Node.js
+ * `EventEmitter` interface.
+ */
+declare class EventEmitter<
+  EventTypes extends EventEmitter.ValidEventTypes = string | symbol,
+  Context extends any = any
+> {
+  static prefixed: string | boolean;
+
+  /**
+   * Return an array listing the events for which the emitter has registered
+   * listeners.
+   */
+  eventNames(): Array<EventEmitter.EventNames<EventTypes>>;
+
+  /**
+   * Return the listeners registered for a given event.
+   */
+  listeners<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T
+  ): Array<EventEmitter.EventListener<EventTypes, T>>;
+
+  /**
+   * Return the number of listeners listening to a given event.
+   */
+  listenerCount(event: EventEmitter.EventNames<EventTypes>): number;
+
+  /**
+   * Calls each of the listeners registered for a given event.
+   */
+  emit<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    ...args: EventEmitter.EventArgs<EventTypes, T>
+  ): boolean;
+
+  /**
+   * Add a listener for a given event.
+   */
+  on<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    fn: EventEmitter.EventListener<EventTypes, T>,
+    context?: Context
+  ): this;
+  addListener<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    fn: EventEmitter.EventListener<EventTypes, T>,
+    context?: Context
+  ): this;
+
+  /**
+   * Add a one-time listener for a given event.
+   */
+  once<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    fn: EventEmitter.EventListener<EventTypes, T>,
+    context?: Context
+  ): this;
+
+  /**
+   * Remove the listeners of a given event.
+   */
+  removeListener<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    fn?: EventEmitter.EventListener<EventTypes, T>,
+    context?: Context,
+    once?: boolean
+  ): this;
+  off<T extends EventEmitter.EventNames<EventTypes>>(
+    event: T,
+    fn?: EventEmitter.EventListener<EventTypes, T>,
+    context?: Context,
+    once?: boolean
+  ): this;
+
+  /**
+   * Remove all listeners, or those of the specified event.
+   */
+  removeAllListeners(event?: EventEmitter.EventNames<EventTypes>): this;
+}
+
+declare namespace EventEmitter {
+  export interface ListenerFn<Args extends any[] = any[]> {
+    (...args: Args): void;
+  }
+
+  export interface EventEmitterStatic {
+    new <
+      EventTypes extends ValidEventTypes = string | symbol,
+      Context = any
+    >(): EventEmitter<EventTypes, Context>;
+  }
+
+  /**
+   * `object` should be in either of the following forms:
+   * ```
+   * interface EventTypes {
+   *   'event-with-parameters': any[]
+   *   'event-with-example-handler': (...args: any[]) => void
+   * }
+   * ```
+   */
+  export type ValidEventTypes = string | symbol | object;
+
+  export type EventNames<T extends ValidEventTypes> = T extends string | symbol
+    ? T
+    : keyof T;
+
+  export type ArgumentMap<T extends object> = {
+    [K in keyof T]: T[K] extends (...args: any[]) => void
+      ? Parameters<T[K]>
+      : T[K] extends any[]
+      ? T[K]
+      : any[];
+  };
+
+  export type EventListener<
+    T extends ValidEventTypes,
+    K extends EventNames<T>
+  > = T extends string | symbol
+    ? (...args: any[]) => void
+    : (
+        ...args: ArgumentMap<Exclude<T, string | symbol>>[Extract<K, keyof T>]
+      ) => void;
+
+  export type EventArgs<
+    T extends ValidEventTypes,
+    K extends EventNames<T>
+  > = Parameters<EventListener<T, K>>;
+
+  export const EventEmitter: EventEmitterStatic;
+}
+
+declare namespace Peer {
+  export interface UtilSupportsObj {
+    browser: boolean;
+    webRTC: boolean;
+    audioVideo: boolean;
+    data: boolean;
+    binaryBlob: boolean;
+    reliable: boolean;
+  }
+  class Util {
+    noop(): void;
+    readonly CLOUD_HOST = '0.peerjs.com';
+    readonly CLOUD_PORT = 443;
+    readonly chunkedBrowsers: {
+      Chrome: number;
+      chrome: number;
+    };
+    readonly chunkedMTU = 16300;
+    readonly defaultConfig: {
+      iceServers: (
+        | {
+            urls: string;
+            username?: undefined;
+            credential?: undefined;
+          }
+        | {
+            urls: string[];
+            username: string;
+            credential: string;
+          }
+      )[];
+      sdpSemantics: string;
+    };
+    readonly browser: string;
+    readonly browserVersion: number;
+    readonly supports: UtilSupportsObj;
+    validateId(id: string): boolean;
+    pack: any;
+    unpack: any;
+    chunk(
+      blob: Blob
+    ): {
+      __peerData: number;
+      n: number;
+      total: number;
+      data: Blob;
+    }[];
+    blobToArrayBuffer(
+      blob: Blob,
+      cb: (arg: ArrayBuffer | null) => void
+    ): FileReader;
+    binaryStringToArrayBuffer(binary: string): ArrayBuffer | SharedArrayBuffer;
+    randomToken(): string;
+    isSecure(): boolean;
+  }
+  export const util: Util;
+  export enum LogLevel {
+    Disabled = 0,
+    Errors = 1,
+    Warnings = 2,
+    All = 3,
+  }
+  export enum ConnectionType {
+    Data = 'data',
+    Media = 'media',
+  }
+  export enum PeerErrorType {
+    BrowserIncompatible = 'browser-incompatible',
+    Disconnected = 'disconnected',
+    InvalidID = 'invalid-id',
+    InvalidKey = 'invalid-key',
+    Network = 'network',
+    PeerUnavailable = 'peer-unavailable',
+    SslUnavailable = 'ssl-unavailable',
+    ServerError = 'server-error',
+    SocketError = 'socket-error',
+    SocketClosed = 'socket-closed',
+    UnavailableID = 'unavailable-id',
+    WebRTC = 'webrtc',
+  }
+  export enum SerializationType {
+    Binary = 'binary',
+    BinaryUTF8 = 'binary-utf8',
+    JSON = 'json',
+  }
+  export enum SocketEventType {
+    Message = 'message',
+    Disconnected = 'disconnected',
+    Error = 'error',
+    Close = 'close',
+  }
+  export enum ServerMessageType {
+    Heartbeat = 'HEARTBEAT',
+    Candidate = 'CANDIDATE',
+    Offer = 'OFFER',
+    Answer = 'ANSWER',
+    Open = 'OPEN',
+    Error = 'ERROR',
+    IdTaken = 'ID-TAKEN',
+    InvalidKey = 'INVALID-KEY',
+    Leave = 'LEAVE',
+    Expire = 'EXPIRE',
+  }
+  /**
+   * An abstraction on top of WebSockets to provide fastest
+   * possible connection for peers.
+   */
+  class Socket extends EventEmitter {
+    constructor(
+      secure: any,
+      host: string,
+      port: number,
+      path: string,
+      key: string,
+      pingInterval?: number
+    );
+    start(id: string, token: string): void;
+    /** Exposed send for DC & Peer. */
+    send(data: any): void;
+    close(): void;
+  }
+  class ServerMessage {
+    type: ServerMessageType;
+    payload: any;
+    src: string;
+  }
+  type BaseConnectionEvents = {
+    /**
+     * Emitted when either you or the remote peer closes the connection.
+     */
+    close: () => void;
+    error: (error: Error) => void;
+    iceStateChanged: (state: RTCIceConnectionState) => void;
+  };
+  abstract class BaseConnection<
+    T extends EventEmitter.ValidEventTypes,
+    TT
+  > extends EventEmitter<T & BaseConnectionEvents> {
+    readonly peer: string;
+    provider: Peer<TT>;
+    readonly options: any;
+    protected _open: boolean;
+    readonly metadata: any;
+    connectionId: string;
+    peerConnection: RTCPeerConnection;
+    abstract get type(): ConnectionType;
+    get open(): boolean;
+    constructor(peer: string, provider: Peer<TT>, options: any);
+    abstract close(): void;
+    abstract handleMessage(message: ServerMessage): void;
+  }
+  type DataConnectionEvents<T> = {
+    /**
+     * Emitted when data is received from the remote peer.
+     */
+    data: (data: T) => void;
+    /**
+     * Emitted when the connection is established and ready-to-use.
+     */
+    open: () => void;
+  };
+  /**
+   * Wraps a DataChannel between two Peers.
+   */
+  export class DataConnection<T> extends BaseConnection<
+    DataConnectionEvents<T>,
+    T
+  > {
+    readonly label: string;
+    readonly serialization: SerializationType;
+    readonly reliable: boolean;
+    stringify: (data: any) => string;
+    parse: (data: string) => any;
+    get type(): ConnectionType;
+    get dataChannel(): RTCDataChannel;
+    get bufferSize(): number;
+    constructor(peerId: string, provider: Peer<T>, options: any);
+    /** Called by the Negotiator when the DataChannel is ready. */
+    initialize(dc: RTCDataChannel): void;
+    /**
+     * Exposed functionality for users.
+     */
+    /** Allows user to close connection. */
+    close(): void;
+    /** Allows user to send data. */
+    send(data: T, chunked?: boolean): void;
+    handleMessage(message: ServerMessage): void;
+  }
+  export interface AnswerOption {
+    sdpTransform?: Function;
+  }
+  export interface PeerJSOption {
+    key?: string;
+    host?: string;
+    port?: number;
+    path?: string;
+    secure?: boolean;
+    token?: string;
+    config?: RTCConfiguration;
+    debug?: number;
+    referrerPolicy?: ReferrerPolicy;
+  }
+  export interface PeerConnectOption {
+    label?: string;
+    metadata?: any;
+    serialization?: string;
+    reliable?: boolean;
+  }
+  export interface CallOption {
+    metadata?: any;
+    sdpTransform?: Function;
+  }
+  type MediaConnectionEvents = {
+    /**
+     * Emitted when a connection to the PeerServer is established.
+     */
+    stream: (stream: MediaStream) => void;
+  };
+  /**
+   * Wraps the streaming interface between two Peers.
+   */
+  export class MediaConnection<T> extends BaseConnection<
+    MediaConnectionEvents,
+    T
+  > {
+    get type(): ConnectionType;
+    get localStream(): MediaStream;
+    get remoteStream(): MediaStream;
+    constructor(peerId: string, provider: Peer<T>, options: any);
+    addStream(remoteStream: any): void;
+    handleMessage(message: ServerMessage): void;
+    answer(stream?: MediaStream, options?: AnswerOption): void;
+    /**
+     * Exposed functionality for users.
+     */
+    /** Allows user to close connection. */
+    close(): void;
+  }
+  class PeerOptions implements PeerJSOption {
+    debug?: LogLevel;
+    host?: string;
+    port?: number;
+    path?: string;
+    key?: string;
+    token?: string;
+    config?: any;
+    secure?: boolean;
+    pingInterval?: number;
+    referrerPolicy?: ReferrerPolicy;
+    logFunction?: (logLevel: LogLevel, ...rest: any[]) => void;
+  }
+  type PeerEvents<T> = {
+    /**
+     * Emitted when a connection to the PeerServer is established.
+     */
+    open: (id: string) => void;
+    /**
+     * Emitted when a new data connection is established from a remote peer.
+     */
+    connection: (dataConnection: DataConnection<T>) => void;
+    /**
+     * Emitted when a remote peer attempts to call you.
+     */
+    call: (mediaConnection: MediaConnection<T>) => void;
+    /**
+     * Emitted when the peer is destroyed and can no longer accept or create any new connections.
+     */
+    close: () => void;
+    /**
+     * Emitted when the peer is disconnected from the signalling server
+     */
+    disconnected: (currentId: string) => void;
+    /**
+     * Errors on the peer are almost always fatal and will destroy the peer.
+     */
+    error: (error: Error) => void;
+  };
+}
+
+/**
+ * A peer who can initiate connections with other peers.
+ */
+declare class Peer<T> extends EventEmitter<Peer.PeerEvents<T>> {
+  /**
+   * The brokering ID of this peer
+   */
+  get id(): string;
+  get options(): Peer.PeerOptions;
+  get open(): boolean;
+  get socket(): Peer.Socket;
+  /**
+   * A hash of all connections associated with this peer, keyed by the remote peer's ID.
+   * @deprecated
+   * Return type will change from Object to Map<string,[]>
+   */
+  get connections(): Object;
+  /**
+   * true if this peer and all of its connections can no longer be used.
+   */
+  get destroyed(): boolean;
+  /**
+   * false if there is an active connection to the PeerServer.
+   */
+  get disconnected(): boolean;
+  /**
+   * A peer can connect to other peers and listen for connections.
+   */
+  constructor();
+  /**
+   * A peer can connect to other peers and listen for connections.
+   * @param options for specifying details about PeerServer
+   */
+  constructor(options: Peer.PeerOptions);
+  /**
+   * A peer can connect to other peers and listen for connections.
+   * @param id Other peers can connect to this peer using the provided ID.
+   *     If no ID is given, one will be generated by the brokering server.
+   * @param options for specifying details about PeerServer
+   */
+  constructor(id: string, options?: Peer.PeerOptions);
+  /** Retrieve messages from lost message store */
+  _getMessages(connectionId: string): Peer.ServerMessage[];
+  /**
+   * Connects to the remote peer specified by id and returns a data connection.
+   * @param peer The brokering ID of the remote peer (their peer.id).
+   * @param options for specifying details about Peer Connection
+   */
+  connect(
+    peer: string,
+    options?: Peer.PeerConnectOption
+  ): Peer.DataConnection<T>;
+  /**
+   * Calls the remote peer specified by id and returns a media connection.
+   * @param peer The brokering ID of the remote peer (their peer.id).
+   * @param stream The caller's media stream
+   * @param options Metadata associated with the connection, passed in by whoever initiated the connection.
+   */
+  call(
+    peer: string,
+    stream: MediaStream,
+    options?: Peer.CallOption
+  ): Peer.MediaConnection<T>;
+  _removeConnection(
+    connection: Peer.DataConnection<T> | Peer.MediaConnection<T>
+  ): void;
+  /** Retrieve a data/media connection for this peer. */
+  getConnection(
+    peerId: string,
+    connectionId: string
+  ): null | Peer.DataConnection<T> | Peer.MediaConnection<T>;
+  /** Emits a typed error message. */
+  emitError(type: Peer.PeerErrorType, err: string | Error): void;
+  /**
+   * Destroys the Peer: closes all active connections as well as the connection
+   *  to the server.
+   * Warning: The peer can no longer create or accept connections after being
+   *  destroyed.
+   */
+  destroy(): void;
+  /**
+   * Disconnects the Peer's connection to the PeerServer. Does not close any
+   *  active connections.
+   * Warning: The peer can no longer create or accept connections after being
+   *  disconnected. It also cannot reconnect to the server.
+   */
+  disconnect(): void;
+  /** Attempts to reconnect with the same ID. */
+  reconnect(): void;
+  /**
+   * Get a list of available peer IDs. If you're running your own server, you'll
+   * want to set allow_discovery: true in the PeerServer options. If you're using
+   * the cloud server, email team@peerjs.com to get the functionality enabled for
+   * your key.
+   */
+  listAllPeers(cb?: (_: any[]) => void): void;
+}

Extensions/Multiplayer/tests/multiplayer.spec.js

@@ -91,12 +91,12 @@ describe('Multiplayer', () => {
   };
 
   /**
-   * A mocked P2P event data.
+   * A mocked P2P message data.
-   * @implements {gdjs.evtTools.p2p.IEventData}
+   * @implements {gdjs.multiplayerPeerJsHelper.IMessageData}
    */
-  class MockedEventData {
+  class MockedMessageData {
     /**
-     * @param {string} data
+     * @param {object} data
      * @param {string} sender
      **/
     constructor(data, sender) {
@@ -107,59 +107,63 @@ describe('Multiplayer', () => {
     /**
      * The data sent alongside the event.
      */
-    data = '';
+    data = {};
 
     /**
      * The ID of the sender of the event.
      */
     sender = '';
-  }
-
-  /**
-   * A mocked P2P event.
-   * @implements {gdjs.evtTools.p2p.IEvent}
-   */
-  class MockedEvent {
-    data = [];
-    dataloss = false;
-
-    isTriggered() {
-      return this.data.length > 0;
-    }
-
-    /**
-     * @param {gdjs.evtTools.p2p.IEventData} newData
-     */
-    pushData(newData) {
-      if (this.dataloss && this.data.length > 0) this.data[0] = newData;
-      else this.data.push(newData);
-    }
-
-    popData() {
-      this.data.shift();
-    }
 
     getData() {
-      return this.data.length === 0 ? '' : this.data[0].data;
+      return this.data;
     }
 
     getSender() {
-      return this.data.length === 0 ? '' : this.data[0].sender;
+      return this.sender;
+    }
+  }
+
+  /**
+   * A mocked P2P messages list.
+   * @implements {gdjs.multiplayerPeerJsHelper.IMessagesList}
+   */
+  class MockedMessagesList {
+    data = [];
+    messageName = 'some-message-name';
+
+    constructor(messageName) {
+      this.messageName = messageName;
+    }
+
+    getName() {
+      return this.messageName;
+    }
+
+    /**
+     * @param {object} newData
+     * @param {string} sender
+     */
+    pushMessage(newData, sender) {
+      this.data.push(new MockedMessageData(newData, sender));
+    }
+
+    getMessages() {
+      return this.data;
     }
   }
 
   /**
    * Create a mocked P2P handler.
-   * It stores the events sent to/from peers.
+   * It stores the messages sent to/from peers.
    */
-  const createP2PAndMultiplayerManagersMock = () => {
+  const createMultiplayerManagersMock = () => {
     const p2pState = {
       currentPeerId: '',
       otherPeerIds: [],
     };
 
-    /** @type {Record<string, Map<string, MockedEvent>>} */
+    /** @type {Record<string, Map<string, MockedMessagesList>>} */
-    const peerEvents = {};
+    const peerAllMessagesMap = {};
 
     /** @type {Record<string, gdjs.MultiplayerMessageManager>} */
     const peerMultiplayerMessageManager = {};
@@ -167,88 +171,68 @@ describe('Multiplayer', () => {
     /** @type {Record<string, gdjs.MultiplayerVariablesManager>} */
     const peerMultiplayerVariablesManager = {};
 
-    const getPeerEvents = (peerId) =>
+    const getPeerMessages = (peerId) =>
-      (peerEvents[peerId] = peerEvents[peerId] || new Map());
+      (peerAllMessagesMap[peerId] = peerAllMessagesMap[peerId] || new Map());
 
     /**
-     * @param {string} eventName
+     * @param {string} messageName
-     * @returns {gdjs.evtTools.p2p.IEvent}
+     * @returns {gdjs.multiplayerPeerJsHelper.IMessagesList}
      */
-    const getEvent = (eventName) => {
+    const getOrCreateMessagesList = (messageName) => {
-      const events = getPeerEvents(p2pState.currentPeerId);
+      const allMessagesMap = getPeerMessages(p2pState.currentPeerId);
-      let event = events.get(eventName);
+      const messagesList = allMessagesMap.get(messageName);
-      if (!event) events.set(eventName, (event = new MockedEvent()));
+      if (messagesList) return messagesList;
-      return event;
+      const newMessagesList = new MockedMessagesList(messageName);
+      allMessagesMap.set(messageName, newMessagesList);
+      return newMessagesList;
     };
 
     /**
-     * @param {string} peerId
+     * @param {string[]} peerIds
-     * @param {string} eventName
+     * @param {string} messageName
-     * @param {string} eventData
+     * @param {object} messageData
      */
-    const sendDataTo = (peerId, eventName, eventData) => {
+    const sendDataTo = async (peerIds, messageName, messageData) => {
-      // console.log(`## SENDING DATA TO ${peerId}:`, eventName, eventData);
+      for (const peerId of peerIds) {
-      const events = getPeerEvents(peerId);
+        // console.log(`## SENDING DATA TO ${peerId}:`, messageName, messageData);
-      let event = events.get(eventName);
+        const peerAllMessagesMap = getPeerMessages(peerId);
-      if (!event) events.set(eventName, (event = new MockedEvent()));
+        let peerMessagesList = peerAllMessagesMap.get(messageName);
-      event.pushData(new MockedEventData(eventData, peerId));
+        if (!peerMessagesList) {
+          peerMessagesList = new MockedMessagesList(messageName);
+          peerAllMessagesMap.set(messageName, peerMessagesList);
+        }
+
+        peerMessagesList.pushMessage(messageData, p2pState.currentPeerId);
+      }
     };
 
-    /** @type {typeof gdjs.evtTools.p2p} */
+    /** @type {typeof gdjs.multiplayerPeerJsHelper} */
-    const p2pMock = {
+    const peerJsHelperMock = {
       // @ts-ignore - this is a mock so private properties can't be the same.
-      Event: MockedEvent,
+      MessagesList: MockedMessagesList,
-      EventData: MockedEventData,
+      MessageData: MockedMessageData,
-      sendVariableTo: () => {},
+      getOrCreateMessagesList,
-      sendVariableToAll: () => {},
-      getEventVariable: (eventName, variable) => {
-        variable.fromJSON(getEvent(eventName).getData());
-      },
-      onEvent: (eventName, dataloss) => {
-        const event = getEvent(eventName);
-        event.dataloss = dataloss;
-        const isTriggered = event.isTriggered();
-        return isTriggered;
-      },
-      getEvent,
       connect: (id) => {},
-      disconnectFromPeer: (id) => {},
       disconnectFromAllPeers: () => {},
-      disconnectFromAll: () => {},
-      disconnectFromBroker: () => {},
       sendDataTo,
-      sendDataToAll: (eventName, eventData) => {
+      getAllMessagesMap: () => getPeerMessages(p2pState.currentPeerId),
-        p2pState.otherPeerIds.forEach((peerId) => {
-          sendDataTo(peerId, eventName, eventData);
-        });
-      },
-      getEventData: (eventName) => getEvent(eventName).getData(),
-      getEventSender: (eventName) => getEvent(eventName).getSender(),
-      getEvents: () => getPeerEvents(p2pState.currentPeerId),
       useCustomBrokerServer: () => {},
       useDefaultBrokerServer: () => {},
       useCustomICECandidate: () => {},
       forceUseRelayServer: (shouldUseRelayServer) => {},
-      overrideId: (id) => {},
       getCurrentId: () => 'fake-current-id',
       isReady: () => true,
-      onError: () => false,
+      getJustDisconnectedPeers: () => [],
-      getLastError: () => '',
-      onDisconnect: () => false,
-      getDisconnectedPeer: () => '',
-      onConnection: () => false,
-      getConnectedPeer: () => '',
       getAllPeers: () => p2pState.otherPeerIds,
-      getConnectionInstance: () => undefined,
     };
 
-    gdjs.evtTools.p2p = p2pMock;
+    gdjs.multiplayerPeerJsHelper = peerJsHelperMock;
 
     return {
       switchToPeer: ({ peerId, otherPeerIds, playerNumber }) => {
         // console.log('## SWITCHING TO PEER', peerId);
 
-        // Switch the state of the P2P mock.
+        // Switch the state of the peerJs mock.
         p2pState.currentPeerId = peerId;
         p2pState.otherPeerIds = otherPeerIds;
 
@@ -273,25 +257,29 @@ describe('Multiplayer', () => {
         // Switch the state of the game.
         gdjs.multiplayer.playerNumber = playerNumber;
       },
-      logEvents: () => {
+      logMessages: () => {
-        Object.keys(peerEvents).forEach((peerId) => {
+        Object.keys(peerAllMessagesMap).forEach((peerId) => {
-          console.log(`## PEER ${peerId} events:`);
+          console.log(`## PEER ${peerId} messages:`);
-          for (const [eventName, event] of peerEvents[peerId]) {
+          for (const [messageName, messagesList] of peerAllMessagesMap[
-            console.log(`${eventName}: ${JSON.stringify(event.data)}`);
+            peerId
+          ]) {
+            console.log(
+              `${messageName}: ${JSON.stringify(messagesList.getMessages())}`
+            );
           }
         });
       },
-      markAllPeerEventsAsProcessed: () => {
+      markAllPeerMessagesAsProcessed: () => {
-        for (const events of Object.values(peerEvents)) {
+        for (const allMessagesList of Object.values(peerAllMessagesMap)) {
-          for (const event of events.values()) {
+          for (const messagesList of allMessagesList.values()) {
-            event.popData();
+            messagesList.data = [];
           }
         }
       },
-      expectNoEventsToBeProcessed: () => {
+      expectNoMessagesToBeProcessed: () => {
-        for (const events of Object.values(peerEvents)) {
+        for (const allMessagesList of Object.values(peerAllMessagesMap)) {
-          for (const event of events.values()) {
+          for (const messagesList of allMessagesList.values()) {
-            expect(event.isTriggered()).to.be(false);
+            expect(messagesList.getMessages().length).to.be(0);
           }
         }
       },
@@ -337,8 +325,8 @@ describe('Multiplayer', () => {
     it('synchronizes scene/global variables from the host to other players', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       switchToPeer({
         peerId: 'player-1',
@@ -370,7 +358,7 @@ describe('Multiplayer', () => {
 
       const p2RuntimeScene = makeTestRuntimeSceneWithNetworkId();
       p2RuntimeScene.renderAndStep(1000 / 60);
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
       expect(p2RuntimeScene.getVariables().has('MyString_Variable')).to.be(
         true
       );
@@ -459,7 +447,7 @@ describe('Multiplayer', () => {
       });
 
       p2RuntimeScene.renderAndStep(1000 / 60);
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
       expect(
         p2RuntimeScene.getGame().getVariables().has('MyGlobalStringVariable')
       ).to.be(true);
@@ -529,9 +517,9 @@ describe('Multiplayer', () => {
     it('overrides a scene/global variable, modified by a player, when synchronized by the host', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-        expectNoEventsToBeProcessed,
+        expectNoMessagesToBeProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       switchToPeer({
         peerId: 'player-1',
@@ -566,7 +554,7 @@ describe('Multiplayer', () => {
         p2RuntimeScene.getVariables().add('MyOtherVariable', variable);
       }
       p2RuntimeScene.renderAndStep(1000 / 60);
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
       expect(
         p2RuntimeScene.getVariables().get('MyVariable').getAsString()
       ).to.be('Hello from remote world');
@@ -574,7 +562,7 @@ describe('Multiplayer', () => {
         p2RuntimeScene.getVariables().get('MyOtherVariable').getAsString()
       ).to.be('Something else');
 
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
 
       // Check the host sends again the variable, even if not changed, for reliability
       // (allows to work around a dropped message, without using a real acknowledgement).
@@ -605,16 +593,16 @@ describe('Multiplayer', () => {
         p2RuntimeScene.getVariables().get('MyOtherVariable').getAsString()
       ).to.be('Something else');
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
     });
 
     it('synchronizes a scene/global variable from a player to the host to other players', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-        expectNoEventsToBeProcessed,
+        expectNoMessagesToBeProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       switchToPeer({
         peerId: 'player-1',
@@ -678,8 +666,8 @@ describe('Multiplayer', () => {
       p3GlobalVariable.setPlayerOwnership(3); // Ownership is given to player 3.
       p3RuntimeScene.renderAndStep(1000 / 60);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
 
       // Change the variables on player 3.
       {
@@ -747,9 +735,9 @@ describe('Multiplayer', () => {
     it('does not synchronize a scene/global variable from players if defined as not synchronized', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-        expectNoEventsToBeProcessed,
+        expectNoMessagesToBeProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       switchToPeer({
         peerId: 'player-1',
@@ -813,8 +801,8 @@ describe('Multiplayer', () => {
       p3GlobalVariable.disableSynchronization(); // Disable synchronization.
       p3RuntimeScene.renderAndStep(1000 / 60);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
 
       // Change the variables on player 3.
       {
@@ -945,8 +933,8 @@ describe('Multiplayer', () => {
     it('synchronizes objects from the host to other players', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       // Create an instance on the host's game:
       switchToPeer({
@@ -980,7 +968,7 @@ describe('Multiplayer', () => {
       if (!p2Objects) throw new Error('No objects found');
       expect(p2Objects.length).to.be(0);
       p2RuntimeScene.renderAndStep(1000 / 60);
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       const {
         object: p2SpriteObject,
@@ -1021,7 +1009,7 @@ describe('Multiplayer', () => {
           playerNumber: 2,
         });
         p2RuntimeScene.renderAndStep(1000 / 60);
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
 
         const {
           object: p2SpriteObject,
@@ -1061,7 +1049,7 @@ describe('Multiplayer', () => {
           playerNumber: 2,
         });
         p2RuntimeScene.renderAndStep(1000 / 60);
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
 
         const p2Objects = p2RuntimeScene.getObjects('MySpriteObject');
         if (!p2Objects) throw new Error('No objects found');
@@ -1073,8 +1061,8 @@ describe('Multiplayer', () => {
     it('synchronizes objects from a player to the host to other players', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       // Create an instance on a player:
       switchToPeer({
@@ -1144,7 +1132,7 @@ describe('Multiplayer', () => {
       expect(p3SpriteObject.getX()).to.be(142);
       expect(p3SpriteObject.getY()).to.be(143);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       // Move the object on the player:
       {
@@ -1196,7 +1184,7 @@ describe('Multiplayer', () => {
           playerNumber: 3,
         });
         p3RuntimeScene.renderAndStep(1000 / 60);
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
 
         const {
           object: p3SpriteObject,
@@ -1270,15 +1258,15 @@ describe('Multiplayer', () => {
         expect(p3ObjectsAndBehaviorsUpdated.length).to.be(0);
       }
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
     });
 
     it('allows ownership to change from host to a player to another player', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-        expectNoEventsToBeProcessed,
+        expectNoMessagesToBeProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       // Create an instance on the host's game:
       switchToPeer({
@@ -1335,8 +1323,8 @@ describe('Multiplayer', () => {
       expect(p3SpriteObjectOriginal.getX()).to.be(142);
       expect(p3SpriteObjectOriginal.getY()).to.be(143);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
 
       // Check player 3 can get ownership (and can directly move the instance, without waiting for the
       // host to acknowledge the change).
@@ -1406,9 +1394,9 @@ describe('Multiplayer', () => {
         expect(p2SpriteObject.getX()).to.be(342);
         expect(p2SpriteObject.getY()).to.be(343);
 
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
-        expectNoEventsToBeProcessed();
+        expectNoMessagesToBeProcessed();
       }
 
       // Check player 2 can get ownership.
@@ -1492,7 +1480,7 @@ describe('Multiplayer', () => {
         ).to.be(2);
       }
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       // Check that the position given by player 2 is updated on the host and player 3.
       {
@@ -1545,15 +1533,15 @@ describe('Multiplayer', () => {
         expect(p3SpriteObject.getY()).to.be(243);
       }
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
-      expectNoEventsToBeProcessed();
+      expectNoMessagesToBeProcessed();
     });
 
     it('reconciles an instance owned by a player with a "ghost" instance created on other peers without a network ID (as not owned by them)', () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       // Create an instance on a player:
       switchToPeer({
@@ -1625,7 +1613,7 @@ describe('Multiplayer', () => {
       expect(p3SpriteObject.getX()).to.be(142);
       expect(p3SpriteObject.getY()).to.be(143);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       // Now, create a new instance on the host and player 3, but owned by player 2.
       // We call this in this test a "ghost" instance as it would be deleted if not "reconcilied".
@@ -1756,12 +1744,12 @@ describe('Multiplayer', () => {
         expect(p3Object2.getX()).to.be(42);
         expect(p3Object2.getY()).to.be(43);
 
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
       }
     });
 
     it('deletes an instance owned by another player after a bit (if not "reconciled" in the meantime)', async () => {
-      const { switchToPeer } = createP2PAndMultiplayerManagersMock();
+      const { switchToPeer } = createMultiplayerManagersMock();
 
       // Create an instance on a player (2), owned by another player (3).
       // We can assume it's because there is some common logic running for all players
@@ -1813,8 +1801,8 @@ describe('Multiplayer', () => {
     it('gives priority to the first ownership change and revert the wrong one', async () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       // Create an instance on the host's game:
       switchToPeer({
@@ -1887,7 +1875,7 @@ describe('Multiplayer', () => {
       expect(p3SpriteObject.getX()).to.be(142);
       expect(p3SpriteObject.getY()).to.be(143);
 
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       // Now, try to change ownership to player 2 and 3 at the "same time".
       {
@@ -1953,7 +1941,7 @@ describe('Multiplayer', () => {
           p1SpriteMultiplayerObjectBehaviorUpdated.getPlayerObjectOwnership()
         ).to.be(2);
 
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
       }
 
       // Wait so that player 3 retries.
@@ -1980,7 +1968,7 @@ describe('Multiplayer', () => {
             p3SpriteMultiplayerObjectBehavior.getPlayerObjectOwnership()
           ).to.be(3);
 
-          markAllPeerEventsAsProcessed();
+          markAllPeerMessagesAsProcessed();
 
           await delay(210);
         }
@@ -2005,7 +1993,7 @@ describe('Multiplayer', () => {
         expect(
           p3SpriteMultiplayerObjectBehavior.getPlayerObjectOwnership()
         ).to.be(0);
-        markAllPeerEventsAsProcessed();
+        markAllPeerMessagesAsProcessed();
       }
 
       // Move the object on the player 2:
@@ -2072,7 +2060,7 @@ describe('Multiplayer', () => {
           p3SpriteMultiplayerObjectBehavior.getPlayerObjectOwnership()
         ).to.be(2);
       }
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
     });
   });
 
@@ -2091,7 +2079,7 @@ describe('Multiplayer', () => {
     };
 
     it('synchronizes scenes from the host to other players', async () => {
-      const { switchToPeer } = createP2PAndMultiplayerManagersMock();
+      const { switchToPeer } = createMultiplayerManagersMock();
 
       const gameLayoutData = [
         getFakeSceneAndExtensionData({ name: 'Scene1' }).sceneData,
@@ -2218,8 +2206,8 @@ describe('Multiplayer', () => {
     it('reconciles a scene launched both by the host and by a player', async () => {
       const {
         switchToPeer,
-        markAllPeerEventsAsProcessed,
+        markAllPeerMessagesAsProcessed,
-      } = createP2PAndMultiplayerManagersMock();
+      } = createMultiplayerManagersMock();
 
       const gameLayoutData = [
         getFakeSceneAndExtensionData({ name: 'Scene1' }).sceneData,
@@ -2263,7 +2251,7 @@ describe('Multiplayer', () => {
       p2RuntimeGame.getSceneStack().step(1000 / 60);
 
       checkCurrentSceneIs(p2RuntimeGame, 'Scene1');
-      markAllPeerEventsAsProcessed();
+      markAllPeerMessagesAsProcessed();
 
       // Launch a second scene, first on the player:
       p2RuntimeGame.getSceneStack().push('Scene2');