public UserThread(Socket s, BufferedReader input, PrintWriter output, ChatResponder r) {
		responder = r;
		name = "guest_"+UserThread.nextUser;
		nextUser++;
		in = input;
		out = output;
		health = 100;
		def = 1;
		socket = s;
		kills = 0;
		level = 1;
		killsToNextLevel += nextLevelKills(level);
		attackPower = -5;
	}