node-haxball/examples/plugins/syncSpammer.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, "syncSpammer", true, {
    version: "0.1",
    author: "abc",
    description: `This plugin changes your sync value on a regular basis.`,
    allowFlags: AllowFlags.CreateRoom | AllowFlags.JoinRoom
  });
  
  this.defineVariable({
    name: "spam",
    description: "Activates/deactivates spamming.", 
    type: VariableType.Boolean,
    value: false
  });

  this.defineVariable({
    name: "intervalMsec",
    description: "Waiting time between each sync spam.", 
    type: VariableType.Integer,
    value: 1000,
    range: {
      min: 15,
      max: Infinity,
      step: 1
    }
  });

  var that = this, sync = true, timeout;
  
  function swapSync(){
    sync = !sync;
    that.room?.setSync?.(sync);
    timeout = setTimeout(swapSync, that.intervalMsec);
  }
  
  this.onVariableValueChange = function(addonObject, variableName, oldValue, newValue){
    if (addonObject == that && variableName=="spam"){
      if (timeout!=null)
        clearTimeout(timeout);
      if (newValue)
        timeout = setTimeout(swapSync, newValue);
    }
  };

  this.finalize = function(){
    if (timeout!=null)
      clearTimeout(timeout);
  };

  // snapshot support

  this.takeSnapshot = function(){
    var { spam, intervalMsec } = that;
    return {
      spam,
      intervalMsec,
      sync
    };
  };

  this.useSnapshot = function(snapshot){
    var {
      spam,
      intervalMsec
    } = snapshot;
    Object.assign(that, {
      spam,
      intervalMsec
    });
    sync = snapshot.sync;
  };
}