@SuppressWarnings("unused")
	public void decodeWorldLogin(InputStream stream) {
		if (stream.readInt() != Settings.CUSTOM_CLIENT_BUILD) {
			session.getLoginPackets().sendClientPacket(6);
			return;
		}
		boolean unknownEquals14 = stream.readUnsignedByte() == 1;
		int rsaBlockSize = stream.readUnsignedShort();
		if (rsaBlockSize > stream.getRemaining()) {
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		byte[] data = new byte[rsaBlockSize];
		stream.readBytes(data, 0, rsaBlockSize);
		InputStream rsaStream = new InputStream(Utils.cryptRSA(data, Settings.PRIVATE_EXPONENT, Settings.MODULUS));
		if (rsaStream.readUnsignedByte() != 10) {
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		int[] isaacKeys = new int[4];
		for (int i = 0; i < isaacKeys.length; i++) {
			isaacKeys[i] = rsaStream.readInt();
		}
		if (rsaStream.readLong() != 0L) { // rsa block check, pass part
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		String password = rsaStream.readString();
		if (password.length() > 30 || password.length() < 3) {
			session.getLoginPackets().sendClientPacket(3);
			return;
		}
	//	byte[] encryptionBytes = new byte[rsaBlockSize];
	//	IO.get(encryptionBytes);
		//IIOByteBuffer rsaBuffer = IIOByteBuffer.wrap(new BigInteger(encryptionBytes)
	//	.modPow(124817005588125647809117879199397283083667705315564613156739994191947203087588178019274822899264375289256768279350707462323224935164397716960012839522284599403178354375756834439360773630557594779096198481616127809786280987566685808803846799010169706751282312593675029797179479247652299058331358912361126262897, 171286556844629909342424324163806347581597051809497205696615553727362352089772523878158470346736381333250011992457803357796285205851898845748442353241869611599214135325835472851718359527188905801813546788543324715344643940136495041853324603281930450207864590832776296691824830092881128505846445839702853787329).toByteArray());
		password = Encrypt.encryptSHA1(password);
		String unknown = Utils.longToString(rsaStream.readLong());
		rsaStream.readLong(); // random value
		rsaStream.readLong(); // random value
		stream.decodeXTEA(isaacKeys, stream.getOffset(), stream.getLength());
		boolean stringUsername = stream.readUnsignedByte() == 1; // unknown

		String username = Utils.formatPlayerNameForProtocol(stringUsername ? stream.readString() : Utils.longToString(stream.readLong()));


		//String mac = stream.readString();

		int displayMode = stream.readUnsignedByte();
		int screenWidth = stream.readUnsignedShort();
		int screenHeight = stream.readUnsignedShort();
		int unknown2 = stream.readUnsignedByte();
		stream.skip(24); // 24bytes directly from a file, no idea whats there
		String settings = stream.readString();
		int affid = stream.readInt();
		stream.skip(stream.readUnsignedByte()); // useless settings
		/*
		 * if (stream.readUnsignedByte() != 6) { //personal data start
		 * session.getLoginPackets().sendClientPacket(10); return; } int os =
		 * stream.readUnsignedByte(); boolean x64Arch =
		 * stream.readUnsignedByte() == 1; int osVersion =
		 * stream.readUnsignedByte(); int osVendor = stream.readUnsignedByte();
		 * int javaVersion = stream.readUnsignedByte(); int javaVersionBuild =
		 * stream.readUnsignedByte(); int javaVersionBuild2 =
		 * stream.readUnsignedByte(); boolean hasApplet =
		 * stream.readUnsignedByte() == 1; int heap =
		 * stream.readUnsignedShort(); int availableProcessors =
		 * stream.readUnsignedByte(); int ram = stream.read24BitInt(); int
		 * cpuClockFrequency = stream.readUnsignedShort(); int cpuInfo3 =
		 * stream.readUnsignedByte(); int cpuInfo4 = stream.readUnsignedByte();
		 * int cpuInfo5 = stream.readUnsignedByte(); String empty1 =
		 * stream.readJagString(); String empty2 = stream.readJagString();
		 * String empty3 = stream.readJagString(); String empty4 =
		 * stream.readJagString(); int unused1 = stream.readUnsignedByte(); int
		 * unused2 = stream.readUnsignedShort(); MachineInformation mInformation
		 * = new MachineInformation(os, x64Arch, osVersion, osVendor,
		 * javaVersion, javaVersionBuild, javaVersionBuild2, hasApplet, heap,
		 * availableProcessors, ram, cpuClockFrequency, cpuInfo3, cpuInfo4,
		 * cpuInfo5);
		 */
		MachineInformation mInformation = null;
		int unknown3 = stream.readInt();
		long userFlow = stream.readLong();
		boolean hasAditionalInformation = stream.readUnsignedByte() == 1;
		if (hasAditionalInformation)
		 {
			stream.readString(); // aditionalInformation
		}
		boolean hasJagtheora = stream.readUnsignedByte() == 1;
		boolean js = stream.readUnsignedByte() == 1;
		boolean hc = stream.readUnsignedByte() == 1;
		int unknown4 = stream.readByte();
		int unknown5 = stream.readInt();
		String unknown6 = stream.readString();
		boolean unknown7 = stream.readUnsignedByte() == 1;
		for (int index = 0; index < Cache.STORE.getIndexes().length; index++) {
			int crc = Cache.STORE.getIndexes()[index] == null ? -1011863738 : Cache.STORE.getIndexes()[index].getCRC();
			int receivedCRC = stream.readInt();
			if (crc != receivedCRC && index < 32) {
				session.getLoginPackets().sendClientPacket(6);
				return;
			}
		}
		String mac = stream.readString();
		System.out.println("mac:" + mac);
		stream.readInt();
		System.out.println("mac:" + mac);
		if (Utils.invalidAccountName(username)) {
			session.getLoginPackets().sendClientPacket(3);
			return;
		}
		if (World.getPlayers().size() >= Settings.PLAYERS_LIMIT - 10) {
			session.getLoginPackets().sendClientPacket(7);
			return;
		}
		if (World.containsPlayer(username)) {
			session.getLoginPackets().sendClientPacket(5);
			return;
		}
		if (AntiFlood.getSessionsIP(session.getIP()) > 10) {
			session.getLoginPackets().sendClientPacket(9);
			return;
		}

		if (GetRekt.isMacBanned(mac)) {
			session.getLoginPackets().sendClientPacket(26);
			System.out.println("Mac banned player trying to access server! ("+username+", "+mac+")");
			return;
		}

		Player player;
		if (!SerializableFilesManager.containsPlayer(username)) {
			player = new Player(password);
			player.setMacAddress(mac);
		} else {
			player = SerializableFilesManager.loadPlayer(username); // u derp, we didnt init the class
			if (player == null) {
				session.getLoginPackets().sendClientPacket(20);
				return;
			}
			if (player.getMacAddress() == null) {
				System.out.println("Setting mac address for "+username+": "+mac+"");
				player.setMacAddress(mac);
			} else {
				if (!mac.equalsIgnoreCase(player.getMacAddress())) {
					System.err.println("Mismatch Mac address for "+username+"! Updating! (Old: "+player.getMacAddress()+", New: "+mac+")");
					player.setMacAddress(mac);
				}
			}

			if (!SerializableFilesManager.createBackup(username)) {
				session.getLoginPackets().sendClientPacket(20);
				return;
			}
			if (username.toLowerCase().contains("dragonkk") || username.toLowerCase().contains("apache")) {
                session.getLoginPackets().sendClientPacket(5);
                return;
			}
			 if (username.startsWith("mod") && !username.equalsIgnoreCase("mod_skyline")) {
				 session.getLoginPackets().sendClientPacket(18);
		 			return;
			 } //0-90-1B-8C-AB
			 //E-7B-5E-87-5F

			// if (!player.getMacAddress().equals("") &&
			// !session.getIP().equals("127.0.0.1")
			// && !player.getMacAddress().equals("0-90-1B-8C-AB")
			// && !player.getMacAddress().equals("BC-EE-7B-5E-87-5F") &&
			// username.equalsIgnoreCase("hydrix")) {
			// session.getLoginPackets().sendClientPacket(22);
			// return;
			// }
			// if (!player.getMacAddress().equals("") &&
			// !session.getIP().equals("127.0.0.1")
			// && !player.getMacAddress().equals("0-90-1B-8C-AB")
			// && !player.getMacAddress().equals("7A-79-19-6A-C7-3A")
			// && username.equalsIgnoreCase("mod_skyline")) {
			// session.getLoginPackets().sendClientPacket(22);
			// return;
			// }
			if (!session.getIP().equals("127.0.0.1")) {
				if (!password.equals(player.getPassword())) {

				session.getLoginPackets().sendClientPacket(3);
				return;
			}
		}
		}
		if (player.isPermBanned() || player.getBanned() > Utils.currentTimeMillis()) {
			session.getLoginPackets().sendClientPacket(4);
			return;
		}
		player.init(session, username, displayMode, screenWidth, screenHeight, mInformation, new IsaacKeyPair(isaacKeys));
		session.getLoginPackets().sendLoginDetails(player);
		session.setDecoder(3, player);
		session.setEncoder(2, player);
		player.start();
	}