jRUDP

A Reliable Java UDP Library for multiplayer games and more

Specials thanks

Special Thanks to iGoodie for the work he had done and the help he gave me on this project

Compile and run

Requirements

To use this library, you only need to have java 8 or newer. No additional libraries required !

Examples:

public class Server
{
	public static RUDPServer serverInstance;
	public static final int SERVER_PORT = 56448;
	public static void main(String[] args)
	{
		try {
			serverInstance = new RUDPServer(SERVER_PORT);
			serverInstance.setPacketHandler(OrderedPacketHandler.class);
			serverInstance.start();
		}
		catch(SocketException e) {
			System.out.println("Port " + SERVER_PORT + " is occupied. Server couldn't be initialized.");
			System.exit(-1);
		}

		//send data to every client
		for(RUDPClient c : serverInstance.getConnectedClients()) {
			c.sendPacket(new byte[]{0x00});
			c.sendReliablePacket(new byte[]{0x00});
		}

		serverInstance.kick("localhost", 1234); //kick localhost:1234
		serverInstance.stop();
	}
}

public class Client
{
	public static final InetAddress SERVER_HOST = NetUtils.getInternetAdress("localhost");
	public static final int SERVER_PORT = 56448;

	public static RUDPClient client;

	public static void main(String[] args)
	{
		try {
			client = new RUDPClient(SERVER_HOST, SERVER_PORT);
			client.setPacketHandler(OrderedPacketHandler.class);
			client.connect();
		}
		catch(SocketException e) {
			System.out.println("Cannot allow port for the client. Client can't be launched.");
			System.exit(-1);
		}
		catch(UnknownHostException e) {
			System.out.println("Unknown host: " + SERVER_HOST);
			System.exit(-1);
		}
		catch(SocketTimeoutException e) {
			System.out.println("Connection to " + SERVER_HOST + ":" + SERVER_PORT + " timed out.");
		}
		catch (InstantiationException e) {} //Given handler class can't be instantiated.
		catch (IllegalAccessException e) {} //Given handler class can't be accessed.
		catch(IOException e) {}

		client.sendPacket(new byte[]{0x00}); //Send packet to the server
		client.sendReliablePacket(new byte[]{0x00}); //Send packet to the server

		client.disconnect(); //Disconnect from server
	}
}

Getting support

If you have any question or you found a problem, you can open an issue on the Github repository, send me an email at slaynash@survival-machines.fr, or contact me on Discord (Slaynash#2879).