mc-beta-server/server/packets/Handshake.ts

import { createWriter, IReader, Endian } from "bufferstuff";
import IPacket from "./IPacket";
import Packet from "../enums/Packet";

export default class PacketHandshake implements IPacket {
	public packetId:Packet = Packet.Handshake;
	private username:string;

	public constructor(username?:string) {
		if (typeof(username) === "string") {
			this.username = username;
		} else {
			this.username = "";
		}
	}

	public readData(reader:IReader) {
		this.username = reader.readString16();

		return this;
	}

	public writeData() {
		return createWriter(Endian.BE, 5).writeUByte(this.packetId).writeString16("-").toBuffer();
	}
}