sparkbot.rb

#!/usr/bin/env ruby
require "socket"
require "openssl"

# Variables
@help_msg     = ""
@server       = "irc.cat.pdx.edu"
@port         = "6697"
@nick         = "spark"
@channel      = "#robots"
@channelPass  = "password"

# Connect
@socket = TCPSocket.open(@server, @port)
@ssl_context = OpenSSL::SSL::SSLContext.new()
@irc_server = OpenSSL::SSL::SSLSocket.new(@socket, @ssl_context)
@irc_server.connect

@irc_server.puts "USER Spark 0 Spark :I iz a bot"
@irc_server.puts "NICK #{@nick}"
@irc_server.puts "JOIN #{@channel} #{@channelPass}"


def can_I_spark_this? (astring)
  if astring.class == String
    parts = astring.split("!spark")
  else
    return nil
  end
  if parts.empty? == false
    ((parts[0]).delete "1234567890").chomp.length == 0 and
    astring.include? "!spark"
  else
    nil
  end
end

def spark_it (nums)
  if nums
    @ticks = %w[▁ ▂ ▃ ▄ ▅ ▆ ▇]
    values = nums.delete(" ").split(//).map { |x| x.to_f }
    p values
    min, range, scale = values.min, values.max - values.min, @ticks.length - 1
    if !(range == 0)
      values.map { |x| @ticks[(((x - min) / range) * scale).round] }.join
    else
      values.map { |x| @ticks[1] }.join
    end
  end
end

until @irc_server.eof? do
  msg = @irc_server.gets
  calc = msg.split(":")[2]
  result = nil
  if can_I_spark_this? calc
    result = spark_it calc.delete("!spark").chomp
  end
  if result
    @irc_server.puts "PRIVMSG #{@channel} :" + result.to_s
  end
end