runBot.js

const mineflayer = require('mineflayer')
const uuidv4 = require('uuid').v4

const read_vcap = require('./vcap.js')
const {host, port} = read_vcap('user-provided','MinecraftServer')
const TEAM_PREFIX= 'Go team: '
const TEAM_SUFFIX= '!'


let mcData = require('minecraft-data')("1.12")

/* Test harness for running a bot script locally without CAP requirements */
const Vec3 = require('vec3')
// var blockFinderPlugin = require('mineflayer-blockfinder')(mineflayer)
const navigatePlugin = require('mineflayer-navigate')(mineflayer)

const uuid = uuidv4().split('-')[0]
let interval = 5000
let loop = null

username = `bot_${uuid}`.substr(0, 16) // trim to 16 characters, minecraft limit

let bot = mineflayer.createBot({
    username,
    host,
    port,
    version: "1.12.2"
})
navigatePlugin(bot);

const Player = require('./bot.js')
const wrapper = require('./wrapper.js')(bot, mcData)

console.log("Bot.majorVersion ================= " + bot.majorVersion)

bot.on('error', err => console.error(err))

bot.on('spawn',()=>{
  console.log("Spawn")
})

bot.on('game',()=>{
  console.log("Game")
})

bot.on('connect',()=>{
  console.error("Connected")
})
bot.on('end',()=>{
  console.error("Disconnected")
  process.exit(0)
})

bot.on('respawn', () => {
    console.log(bot.username + ' was killed :(');
    wrapper.sendChat(`${TEAM_PREFIX}${playerBot.team}${TEAM_SUFFIX}`)
    restartLoop()
})

bot.on('blockUpdate', (oldBlock,newBlock) =>{
    // request an update to the current map tile if dirt, grass, 
    if(oldBlock && oldBlock.id == mcData.blocksByName.air){
        switch(newBlock.type){
            case mcData.blocksByName.dirt.id:
            case mcData.blocksByName.grass.id:
            case mcData.blocksByName.sappling.id:
                wrapper.sendChat("/dynmap render")
                break
            case mcData.blocksByName.log.id:
            case mcData.blocksByName.leaves.id:
              wrapper.sendChat(`/dynmap radiusrender world ${newBlock.position.x} ${newBlock.position.z} 10`)
                break
            default:
                // ignore other block changes
        }
    }
})
let playerBot = null
// Announce Team to Geeko Bot (Geeko sets teams and provides starting inventory.)
bot.once('login', function () {
    console.log(bot.username + "| Login")
    playerBot = new Player({bot, mcData, Vec3, ...wrapper})

    console.log(bot.username + `| ${TEAM_PREFIX}${playerBot.team}${TEAM_SUFFIX}`)
    wrapper.sendChat(`${TEAM_PREFIX}${playerBot.team}${TEAM_SUFFIX}`)
    
    restartLoop()
})


const restartLoop = ()=>{
  console.error('(Re)Starting Loop')
  if(loop) clearInterval(loop)
  
  loop = setInterval(() => {
    console.log("Loop Start")
    playerBot.loop({...wrapper})
    console.log("Loop End")
  }, interval)
}