node-haxball/examples/api_structure/joinNRandomRooms.js

The most powerful and lightweight API that allows you to develop your original Haxball(www.haxball.com) host, client, and standalone applications both on node.js and browser environments and also includes every possible hack and functionality that you can

// node.js / CommonJS initialization:
const { OperationType, VariableType, ConnectionState, AllowFlags, Direction, CollisionFlags, CameraFollow, BackgroundType, GamePlayState, BanEntryType, Callback, Utils, Room, Replay, Query, Library, RoomConfig, Plugin, Renderer, Errors, Language, EventFactory, Impl } = API = require("../../src/index")();
const EnglishLanguage = require("../languages/englishLanguage");
API.Language.current = new EnglishLanguage(API); // if you want to use error.toString()

// For initialization on browsers, read the documentation here: https://github.com/wxyz-abcd/node-haxball#-usage-on-browser

const N = 10;

Utils.generateAuth().then(([authKey, authObj])=>{
  function joinRoom(roomId, roomName){
    Room.join({
      id: roomId,
      authObj: authObj
    }, {
      storage: {
        player_name: roomName, // set our name the same as the room that we want to join. :)
        avatar: "👽",
        player_auth_key: authKey
      }, 
      config: null, // example roomConfig usage: new autoPlay_followBall(API) // look at examples/roomConfigs/method2 folder for related examples.
      renderer: null, // example renderer usage: new defaultRenderer(API, {canvas: ..., images: {grass: ..., concrete: ..., concrete2: ..., typing: ...}, paintGame: true}) // look at examples_web folder for usage with room.setRenderer instead.
      plugins: [], // example plugin usage: [new autoPlay_followBall(API)] // look at examples/plugins folder for related examples.
      onOpen: roomCallbacks, // look at examples/roomConfigs/method1 folder for related examples.
      onClose: (msg)=>{
        console.log("Bot has left the room:", msg.toString());
        joinRoom(roomId, roomName); // try to rejoin as soon as you left the room.
      }
    });
  }
  Utils.getRoomList().then((list)=>{
    var idx = [];
    for (var i=0;i<N;){
      var n = Math.floor(Math.random()*list.length);
      if (!list[n].data.password && !idx.includes(n)){ // data.password is room password (true/false), we want to join N different random rooms without passwords.
        idx.push(n);
        i++;
      }
    }
    idx.forEach((x)=>{
      joinRoom(list[x].id, list[x].data.name); // id is room id, data.name is room name
    })
  });
});

function roomCallbacks(room){ // "roomCallbacks" examples start from here. // look at examples/roomConfigs/method1 folder for related examples.
  console.log("joined room " + room.name);
}