HamBot for Discord

README.md

Run using nodejs

setup your BOT_TOKEN environment variable, and you're good to go!

Example CW Game session

https://gfycat.com/CheapSleepyKakarikis

hambot.js

const _ = require('lodash')
const discord = require('discord.js')
const express = require('express')
const morsify = require('morsify')
const client = new discord.Client()

const ALPHABET = 'abcdefghijklmnopqrstuvwxyz'.split('')
const GAME_ROOM = "cw-practice"
const OPTIONS = { dash: '-', dot: '.', space: ' '}
const HELP = `
\`\`\`
Commands:
 Any Channel:
  \`!help\`
    Show this message
  \`!me [message]\`
    Encode a message into Morse
    You: \`!me K3TAS\`
    Bot: \`Encoded: -.- ...-- - .- ...\`
  \`!md [morse]\`
    Decode dashes and dots, letter space separated, into letters.
    You: \`!md -.-. .-- .. ... -.-. --- --- .-..\`
    Bot: \`Decoded : C W I S C O O L\`
 #cw-practice
   \`!new\`
     Start a new guessing game. Generates a new random letter and allows 5 wrong guesses.
     Guesses will be considered any single character message.
     If a game is in session, please no extra talking in the game room.
\`\`\`
`

let game = { 
  running: false,
  channel: undefined
}

function clearGameChannel () {
  game.channel.fetchMessages().then(
    oldMsgs => oldMsgs.deleteAll()
  )
  game.channel.send('Get a new letter with `!new`')
}

function win (msg) {
  clearGameChannel()
  msg.reply(`Correct \`${game.code}\` is \`${game.letter}\`!`)
  resetGame()
}

function lose (msg, why){
  let channel = msg.channel

  clearGameChannel()
  if (why === 'cheating') {
	channel.send(`${msg.author} is cheating, letter was \`${game.letter}\`. Game Ended`)
  } else if (why === 'toomany') {
    channel.send(`Game over! Too many wrong guesses. \`${game.code}\` is \`${game.letter}\``)
  } else {
    channel.send(`Game over! \`${game.code}\` is \`${game.letter}\``)
  }
  if (channel.name === GAME_ROOM) channel.send("`!new` for new game")
  resetGame()
}

function resetGame () {
  game.running = false
  game.code = undefined
  game.letter = undefined
  game.guesses = 0
}

function newGame (msg) {
  clearGameChannel()
  game.running = true
  game.letter = _.sample(ALPHABET)
  game.code = morsify.encode(game.letter)
  game.guesses = 0
}

function cheating (channel, message) {
	return game.running && channel.name === GAME_ROOM && message.includes(game.letter)
}

client.on('message', msg => {
  if(msg.author.username === 'HamBot') return // Don't process on self messages, prevent loops for unguarded messages

  // Show the help message
  if (msg.content === "!help"){
    msg.reply(HELP)
    return
  }

  // Encode any letters into morse code
  if (msg.content.startsWith("!me ")){
    let message = msg.content.slice(4).toLowerCase()
    if (cheating(msg.channel, message)) {
      	lose(msg, 'cheating')
    } else {
      let words = []
      message.split(" ").forEach((word) => { // Todo change to map
        words.push(morsify.encode(word, OPTIONS))
      })
      let encoded = words.join(' / ')
      msg.reply(`Encoded: \`${encoded}\``)
    }
    
  	return
  }

  if (msg.content.startsWith("!md ")){
    let message = msg.content.slice(4).toLowerCase()
    let words = []
    message.split("/").forEach((word) => { // Todo change to map
      let decoded = morsify.decode(word.trim(), OPTIONS).toLowerCase().replace(/ /g, '')
      words.push(decoded)
    })
    let decoded = words.join(' ')
    if (cheating(msg.channel, decoded)) {
      lose(msg, 'cheating')
    } else {
      msg.reply(`Decoded: \`${decoded}\``)
    }
  	return
  }
  
  if (msg.channel.name === GAME_ROOM) {
    if (!game.channel) game.channel = msg.channel // set game channel if not set
    if (msg.content === '!new'){
      newGame(msg)
      game.channel.send('One letter responses are considered a guess.')
      game.channel.send(`New letter, you have 60 seconds: \`${game.code}\``).then(
        (sent) => sent.delete(60*1000).then(() => clearGameChannel(msg.channel))
      )
    } else if(game.running && msg.content.length === 1 ){
      let guess = msg.content
      if (guess.toLowerCase() === game.letter) {
        win(msg)
      } else {
        msg.reply(`Sorry, not \`${guess}\``)
        game.guesses += 1
        if (game.guesses > 5){
          lose(msg, 'toomany')
        }
      }
    } else if(game.running) {
      game.channel.send('Game is running, please do send messages of more than one letter.')
      game.channel.send('One letter responses are considered a guess.')
    }
    return
  }
})
client.login(process.env.BOT_TOKEN)

package.json

{
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "express": "4.16.3",
    "discord.js": "^11.4.2",
    "morsify": "^1.0.0",
    "lodash": "^4.17.11"
  }
}