node-haxball/examples/plugins/greetPeople.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

module.exports = function(API){
  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;

  Object.setPrototypeOf(this, Plugin.prototype);
  Plugin.call(this, "greetPeople", true, { // "greetPeople" is plugin's name, "true" means "activated just after initialization". Every plugin should have a unique name.
    version: "0.1",
    author: "abc",
    description: `This plugin greets the players and makes them admin as soon as they come to the room, and says goodbye to them when they leave.`,
    allowFlags: AllowFlags.CreateRoom | AllowFlags.JoinRoom // We allow this plugin to be activated on both CreateRoom and JoinRoom.
  });

  var that = this;

  this.onPlayerJoin = function(playerObj, customData){
    // get player's id and name
    var id = playerObj.id, name = playerObj.name;

    that.room.sendChat("Welcome, " + name); // greet everybody
    that.room.setPlayerAdmin(id, true); // make everybody admin
  };

  this.onPlayerLeave = function(playerObj, reason, isBanned, byId, customData){
    // get player's name
    var name = playerObj.name;

    that.room.sendChat("Goodbye, " + name); // say farewell to everybody
  };
};