sadgod/source/parseData/getPacketIDs.js

SadGod helps you extract data from ROTMG's internal SWF files. Currently it allows you to read the names and values of all binary packet ids used in the network communication. This is helpful because the game often changes the packet ids.

const renameProperties = require('../renameProperties')
const gameServerConnectionPacketSectionRegex = /(?<=public class GameServerConnection)[\S\s]+(?=public static var instance\:GameServerConnection)/i
const packetIDRegex = /(?<=public static const\s)[^:]+\:int\s\=\s[0-9]+/gi
const packetIDRenames = require('./packetIDRenames')
const fixPropertyCasing = require('./fixPropertyCasing')

function getPacketIDs(gameServerConnection) {
  let packetIDSection = gameServerConnection.match(gameServerConnectionPacketSectionRegex)[0]
  const packetIDs = {}
  packetIDSection.match(packetIDRegex).map(packetIDString => {
    return [fixPropertyCasing(packetIDString.substring(0, packetIDString.indexOf(':')).trim()), parseInt(packetIDString.substring(packetIDString.lastIndexOf('=') + 1).trim())]
  }).sort(([packetName1, packetID1], [packetName2, packetID2]) => packetID1 - packetID2).forEach(([packetName, packetID]) => {
    packetIDs[packetName] = packetID
  })
  return renameProperties(packetIDs, packetIDRenames)
}

module.exports = getPacketIDs