Working version!

edit.sh

 #!/bin/ksh
-nano src/com/miniontoby/MindustrIRC/MindustrIRC.java
+if [[ "x$1" == "x" ]]; then
+	FILE="MindustrIRC"
+else
+	FILE="$1"
+fi
+
+nano src/com/miniontoby/MindustrIRC/$FILE.java

src/com/miniontoby/MindustrIRC/IRCBot.java

+package com.miniontoby.MindustrIRC;
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+import arc.*;
+import arc.util.*;
+import arc.struct.*;
+import mindustry.*;
+import mindustry.content.*;
+import mindustry.game.EventType.*;
+import mindustry.gen.*;
+import mindustry.mod.*;
+
+public class IRCBot extends Thread {
+	private final String NETWORK;
+	private final int PORT;
+	private String nickname;
+	private String defaultChannel;
+	private Socket connection;
+	private BufferedReader input;
+	private BufferedWriter output;
+
+	public IRCBot(String NETWORK, int PORT, String nickname, String defaultChannel) {
+		this.NETWORK = NETWORK;
+		this.PORT = PORT;
+		this.nickname = nickname;
+		this.defaultChannel = defaultChannel;
+	}
+
+	private void connect() throws Exception {
+		connection = new Socket(NETWORK, PORT);
+		input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+		output = new BufferedWriter(new OutputStreamWriter(connection.getOutputStream()));
+	}
+
+	private void disconnect() throws Exception {
+		connection.close();
+	}
+
+	private void sendLoginData() throws Exception {
+		output.write("NICK " + nickname + "\n");
+		output.write("USER " + nickname + " * * : " + nickname + "\n");
+		output.flush();
+	}
+
+	private void pingPong(String[] data) throws Exception {
+		if (data[0].equals("PING")) {
+			output.write("PONG " + data[1] + "\n");
+			output.flush();
+		}
+	}
+
+	private void joinChannel(String channel) throws Exception {
+		output.write("JOIN " + channel + "\n");
+		output.flush();
+	}
+
+	public void sendMessage(String to, String message) throws Exception {
+		output.write("PRIVMSG " + to + " :" + message + "\n");
+		output.flush();
+	}
+
+	private void verifyMOTD(String[] data) throws Exception {
+		if (data.length >= 2) {
+			// 376 is the protocol number (end of MOTD)
+			if (data[1].equals("376")) {
+				joinChannel(defaultChannel);
+				sendMessage(defaultChannel, "[MindustrIRC] Server Started!");
+				MindustrIRC.ConsoleLog("Connected to IRC!");
+			}
+		}
+	}
+
+	private boolean isCommand(String[] data) {
+		if (data.length >= 4) {
+			if (data[1].equals("PRIVMSG")) {
+				if (data[3].substring(1, 2).equals("!")) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	private void verifyCommand(String[] data) throws Exception {
+		if (isCommand(data)) {
+			String from = data[2];
+			String command = data[3].substring(2);
+			switch (command) {
+				case "help":
+					sendMessage(from, "Available commands: help, players");
+					break;
+				case "players":
+					Seq<String> players = Seq.with(Vars.net.getConnections()).map(con -> con.player.name).removeAll(p -> p == null);
+					sendMessage(from, "Connected players: " + players.toString(", "));
+					break;
+				case "avapro":
+					sendMessage(from, String.valueOf(Runtime.getRuntime().availableProcessors()));
+					break;
+				case "freememory":
+					sendMessage(from, String.valueOf(Runtime.getRuntime().freeMemory()));
+					break;
+				case "totalmemory":
+					sendMessage(from, String.valueOf(Runtime.getRuntime().totalMemory()));
+					break;
+				default:
+					sendMessage(from, "exception -> unknown function: \"" + command + "\"");
+					break;
+			}
+		}
+	}
+
+	public void run() {
+		try {
+			connect();
+			sendLoginData();
+
+			while (true) {
+				String data = null;
+				while ((data = input.readLine()) != null) {
+					String[] dataSplitted = data.split(" ");
+					pingPong(dataSplitted);
+					verifyMOTD(dataSplitted);
+					sendToChat(dataSplitted);
+					try {
+						verifyCommand(dataSplitted);
+					} catch (Exception ex) {
+					}
+				}
+			}
+		} catch (Exception ex) {
+			System.out.println(ex.getMessage());
+		}
+	}
+
+	private void sendToChat(String[] data){
+		if (data.length >= 4) {
+			if (data[1].equals("PRIVMSG")) {
+				String[] split = data[0].split("!");
+				String user = split[0].substring(1);
+				String message = data[3].split(":")[1];
+				for (int i = 4; i < data.length; i++){
+					message = message + " " + data[i];
+				}
+				Call.sendMessage("[red][[[grey]" + user + "@IRC[red]][white] " + message);
+			} else if (data[1].equals("JOIN")) {
+				String[] split = data[0].split("!");
+				String user = split[0].substring(1);
+				String chn = data[1];
+				Call.sendMessage("[grey]-!- " + user + " joined " + chn);
+			} else if (data[1].equals("PART")) {
+				String[] split = data[0].split("!");
+				String user = split[0].substring(1);
+				String chn = data[2];
+				String reason = data[3];
+				Call.sendMessage("[grey]-!- " + user + " has left " + chn + " [" + reason + "]");
+			} else if (data[1].equals("QUIT")) {
+				String[] split = data[0].split("!");
+				String user = split[0].substring(1);
+				String reason = data[2];
+				Call.sendMessage("[grey]-!- " + user + " has quit [" + reason + "]");
+			} else if (data[1].equals("NICK")) {
+				String[] split = data[0].split("!");
+				String oldUser = split[0].substring(1);
+				String newUser = data[2];
+				Call.sendMessage("[grey]-!- " + oldUser + " is now known as " + newUser);
+			}
+		}
+	}
+}

src/com/miniontoby/MindustrIRC/MindustrIRC.java

 package com.miniontoby.MindustrIRC;
+import com.miniontoby.MindustrIRC.IRCBot;
 
+import java.net.*;
+import java.io.*;
+import java.util.*;
 import arc.*;
 import arc.util.*;
 import mindustry.*;
@@ -7,21 +11,76 @@ import mindustry.content.*;
 import mindustry.game.EventType.*;
 import mindustry.gen.*;
 import mindustry.mod.*;
+import mindustry.net.*;
 
 public class MindustrIRC extends Plugin {
-	public MindustrIRC(){
-//		Events.on(ServerLoadEvent.class, a -> {
-//			Log.info("Loaded MindustrIRC constructor.");
-//		});
-		Events.on(PlayerChatEvent.class, e -> {
-			Call.sendChatMessage("Hey");
-		});
+	static private IRCBot bot;
+	static public String server = Core.settings.getString("ircServer");
+	static public int port = Core.settings.getInt("ircPort");
+	static public String nickname = Core.settings.getString("ircNickname");
+	static public String channel = Core.settings.getString("ircChannel");
+
+	static public void ConsoleLog(String message){
+		Log.info("[MindustrIRC] " + message);
+	}
+
+	static public void IRCMessage(String message) {
+		try {
+			bot.sendMessage(channel, message);
+//			bot.sendMessage("#mindustry", "[MindustrIRC] " + message);
+		} catch (Exception ex){
+			ConsoleLog("Exception: " + ex);
+		}
 	}
 
 	@Override
 	public void init(){
 		if(Vars.headless){
-			Log.info("MindustrIRC Mod loaded!");
+			ConsoleLog("Loaded!");
+//			if (empty(server) || empty(port) || empty(nickname) || empty(channel)) {
+				Core.settings.put("ircServer", "irc.ircforever.org");
+				Core.settings.put("ircPort", 6667);
+				Core.settings.put("ircNickname", "MindustrIRC");
+				Core.settings.put("ircChannel", "#mindustry");
+
+				String server = Core.settings.getString("ircServer");
+				port = Core.settings.getInt("ircPort");
+				nickname = Core.settings.getString("ircNickname");
+				channel = Core.settings.getString("ircChannel");
+//			}
+			setupListeners();
+			connectToIRC();
 		}
 	}
+
+	static void connectToIRC() {
+		Core.app.post(() -> {
+			bot = new IRCBot(server, port, nickname, channel);
+			bot.start();
+		});
+	}
+	static private void setupListeners(){
+		Events.on(GameOverEvent.class, event -> {
+			IRCMessage("Game over!");
+		});
+		Events.on(WinEvent.class, event -> {
+			IRCMessage("Win Event!");
+		});
+		Events.on(LoseEvent.class, event -> {
+			IRCMessage("Lose Event!");
+		});
+		Events.on(PlayerChatEvent.class, event -> {
+			String playername = event.player.name;
+			String message = event.message;
+			IRCMessage("<" + playername + "> " + message);
+		});
+		Events.on(PlayerJoin.class, event -> {
+			String playername = event.player.name;
+			IRCMessage("*** " + playername + " joined the game");
+		});
+		Events.on(PlayerLeave.class, event -> {
+			String playername = event.player.name;
+			IRCMessage("*** " + playername + " left the game");
+		});
+	}
 }

update.sh

 #!/bin/ksh
-./gradlew jar
-cp ./build/libs/mindustrircDesktop.jar ~/mindustry/config/mods
+./gradlew jar || exit 1
+cp ./build/libs/mindustrircDesktop.jar ~/mindustry/config/mods || exit 1