import java.awt.*;
import java.net.*;

public class Net extends Thread {
  private Paper paper;
  private String host;
  private int myPort;
  private int toPort;

  public Net(Paper paper, String[] args) {
    this.paper = paper;
    this.myPort = Integer.parseInt(args[0]);
    this.host = args[1];
    this.toPort = Integer.parseInt(args[2]);
    start();
  }

  public void send(String message) {
    try {
      byte[] data = message.getBytes();
      InetAddress toAddress = InetAddress.getByName(host);
      DatagramPacket p = new DatagramPacket(data, data.length, toAddress, toPort);
      DatagramSocket s = new DatagramSocket();
      s.send(p);
    } catch(Exception e) {
      System.out.println(e);
    }
  }

  public void run() {
    try {
      DatagramSocket s = new DatagramSocket(myPort);
      while(true) {
        byte[] data = new byte[8192];
        DatagramPacket p = new DatagramPacket(data, data.length);
        s.receive(p);
        String message = new String(p.getData(), 0, p.getLength());
        paper.addPoint(message);
      }
    } catch(Exception e) {
      System.out.println(e);
    }
  }
}