Quick & Easy IRC Bots with Java

February 18, 2008 · by Eric Sorenson

Every day at around 11:30 the developers in my area are faced with the most difficult question of the morning: where to go to lunch? To help move things along, I decided to create an IRC Bot for our developer channel. There’s no point in reinventing the wheel. After 30 seconds of Googling, I found a very capable framework: http://www.jibble.org/pircbot.php. Just extend the PircBot class, and in minutes you’ll have a functional IRC Bot!

import org.jibble.pircbot.PircBot;

public class LunchBot extends PircBot {

public static String[] lunchSpots = {
  "Copp's",
  "Chipotle",
  "Chin's",
  "Quizno's",
  "Casa Bianca",
  "Panera",
  "Cousin's",
  "Milio's",
  "Subway",
  "Boston's",
  "JT Whitney's",
  "Takara",
  "Laredo's",
  "Quaker Steak & Lube",
  "TGI Fridays",
  "PF Chang's",
  "the Hubbard Ave Diner",
  "McDonald's",
  "the West Towne Mall Food Court",
  "the first floor",
  "the fridge in the break room and steal a brownbag"
};

public LunchBot() {
  super();
  setName("LunchBot");
}

public void onMessage(String channel, String sender, String login, String hostname, String message) {
  if (message.equalsIgnoreCase("lunch")) {
   sendMessage(channel, sender + ": you should go to " + lunchSpots[(int) (Math.random()*lunchSpots.length)] );
  }
}
}
If anyone types “lunch” in our channel, they’ll get a random item from the list. It took more time to think of the lunch options than it did to do the research and coding!

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