[Realm Relay] What do UPDATE packets contain?

**CrazyJani** · 02-22-2014

I know that UPDATE packets contain status effects of enemies somewhere but I can't think of anyway I can check where they are. Most likely they're included in ID_UPDATE.newObjs[i].status.data[j].obf0-2. I tried to do a Sprite World while using this script:

Code:

//debug.js

var ID_UPDATE = $.findPacketId("UPDATE");

function onServerPacket(event) {
	var packet = event.getPacket();
	switch (packet.id()) {
		case ID_UPDATE: {
			for (var i = 0; i < packet.newObjs.length; i++) {
				var objectData = packet.newObjs[i];
				if(objectData == null) {
					continue;
				}
				var type = objectData.objectType;
				if(type == 3334){ // Limon
					for (var j = 0; j < objectData.status.data.length; j++) {
						var statData = objectData.status.data[j];
						$.echo(statData.obf0 + ", " + statData.obf1 + ", " + statData.obf2);
					}
				}
			}
			break;
		}
	}
}
/*
UPDATE
	Tile[] tiles
	Entity[] newObjs
	int[] drops
	
Entity
	short objectType
	Status status
	
Status
	int objectId
	Location pos
	StatData[] data
	
StatData
	int obf0 what does these contain?
	int obf1
	string obf2
*/

And it outputted this:

Code:

1, 9000, null
2, 100, null
21, 16, null
29, 16777216, null

But I still have no idea what's going on @DeVoidCoder @NisuxenZ @JustAnoobROTMG

Edit: Also how is it possible that none of the packets contain ObjectData? (Edit2: I'm dumb, of course they don't have)

Code:

ObjectData
	string id
	int type
	int maxHitPoints
	int maxSize
	int minSize
	int size
	int sizeStep
	int shadowSize
	int color
	float xpMult
	float rotation
	boolean drawOnGround
	boolean enemy
	boolean fullOccupy
	boolean occupySquare
	boolean enemyOccupySquare
	boolean blocksSight
	boolean noMiniMap
	boolean stasisImmune
	boolean protectFromGroundDamage
	boolean protectFromSink
	boolean connects
	float z

How to modify ObjectData if none of the packets contain it?

Edit2: I've tried to use $.findObject(searchterm) to get ObjectData of Scorpion Queen but no matter how I use it, it always returns null. How it should be used to get something else than null?

Edit3: I found out that $.findObject(searchterm) can only be used to walls and some other objects, not for enemies

**059** · 02-22-2014

Objects (enemies and players and stuff), tiles, and drops

**CrazyJani** · 02-22-2014

Originally Posted by 059

Objects (enemies and players and stuff), tiles, and drops

Well that's what I already knew. I just didn't want to put overlengthed title.

**infern000** · 02-22-2014

Originally Posted by CrazyJani

I know that UPDATE packets contain status effects of enemies somewhere but I can't think of anyway I can check where they are.

Originally Posted by CrazyJani

29, 16777216, null

there they are: 16777216 = 2^24 = 1<<24 and means [s]Invincible[/s] Invulnerable (blue shield icon)

check here for the obf0 and condition reference

https://www.mpgh.net/forum/showthread...=1#post8101324

**CrazyJani** · 02-22-2014

Originally Posted by infern000

1<<24

What operation << is? That makes no sense for me. Would "PARALYZED = 1<<13" be 2^13=8192?

Originally Posted by infern000

obf0 and condition(obf1) reference

What's obf0 for?

**angelofsilence123** · 02-22-2014

Originally Posted by CrazyJani

What operation << is? That makes no sense for me. Would "PARALYZED = 1<<13" be 2^13=8192?

https://stackoverflow.com/questions/1...ryption-script
If that doesn't link, its a bitwise shift. Quoted from one of those answers:

| = bitwise or

Code:

1010
0100
----
1110

& = bitwise and

Code:

1011
0110
----
0010

so it's the same as && and || just with the single bits

<< is left shift, so

0110 << 2 shifts the numbers left by two positions, yielding 011000 another way to think of this is multiplication by two, so x<<1 == x*2, x<<2 == x*2*2 and so on, so it's x * Math.pow(2,n) for x<

>> is the opposite, so 0110 >> 2 ---> 0001 you can think of it as division by two, BUT with rounding down, so it equals Math.floor(x/Math.pow(2,n))

that should make sense

Originally Posted by CrazyJani

What's obf0 for?

obf0 contains statdata types I believe, as linked in the above post.

**JustAnoobROTMG** · 02-23-2014

How to modify ObjectData if none of the packets contain it?

Add it?

UPDATE create (or destroy) the object. All its statdatas are initialized at object (ObjectStatusdata) creation.
If you want to modify a particular statdata on a particular on object ONCE (in UPDATE) you have to catch the object creation then MODIFY the statdata.
All objects should have all their statsdata in UPDATE.

NEW_TICK on the contrary is the best place to MODIFY objects (ie statsdata) because ....its the packet purpose

If the ObjectstatusData doesnt exists in a particular NEW_TICK, Create it, and add the Statdata you want to modify

Code:

if (o.data.objectId == proxy.PlayerObjectid) 
                    {
                        proxy.player = new Player(o);
                        //System.out.println("PLAYER IS " + o.data.objectId);

                        //Add/update glowing on player   if requested
                        if (Configuration.Glowing)
                        {
                            StatData stg = new StatData();
                            stg.type =  StatData.GLOWING_EFFECT;
                            stg.value = 7;
                            o.data.updateStat(stg);
                            up.isModified = true;
                        }            
}

up is my UPDATE packet.
updateStat is a stub function . It test if the stat exists or not in o.data , and add it or update it otherwise so i can call the same function in NEW_TICK too.

DO NOT create false UPDATE packet because the client answer to all UPDATE with UPDATE_ACK .

**CrazyJani** · 02-24-2014

Originally Posted by JustAnoobROTMG

DO NOT create false UPDATE packet because the client answer to all UPDATE with UPDATE_ACK

Good to know. What other packets do the client answer to?

Originally Posted by JustAnoobROTMG

updateStat is a stub function . It test if the stat exists or not in o.data , and add it or update it otherwise so i can call the same

This is where I got stuck. I can't find out how to send ObjectData in NEW_TICK

**infern000** · 03-03-2014

what do you want to do on the object data anyway? u can get and set it all via editing the .xmls

**mSteaker** · 03-04-2014

I'm stuck in about the same place you are. I have been trying to update jOryx and I know that the hello packet is incorrect. I have tried capturing the packet but I have been unable to decrypt it. My plan is to look through the source of the other 2 outdated proxies I have and see what method they use to encrypt the packet.

**JustAnoobROTMG** · 03-04-2014

Originally Posted by CrazyJani

This is where I got stuck. I can't find out how to send ObjectData in NEW_TICK

What are you trying to do exactly? I mean, without talking about the code.

Code:

public class ObjectStatusData
    implements Parsable
{
    public int objectId;
    public Location pos;
    public List<StatData> stats;

For me, stats are just a List. So there is nothing easier than add or modify a Statdata.
RR probably use an array.

I'm stuck in about the same place you are. I have been trying to update jOryx and I know that the hello packet is incorrect. I have tried capturing the packet but I have been unable to decrypt it. My plan is to look through the source of the other 2 outdated proxies I have and see what method they use to encrypt the packet.

There are far more outdated packet in jOryx than Hello

You should browse the SWF Actionscript using a decompiler like Sothink, As3Sorcerer or FFDEC..

Packets definitions always have a very talkative toString()

**CrazyJani** · 03-04-2014

Originally Posted by JustAnoobROTMG

What are you trying to do exactly?

I am trying to change the ObjectData values and get the client to receive it.

I've tried changing the size of Scorpion Queen, it worked Realm Relay sidely; Realm Relay always returns the wanted value after changing it. The thing is that I can't find a way to send the change to client to see it in client.

Code:

function yellowAlert(event, text) {
	var textPacket = event.createPacket(ID_TEXT);
	textPacket.name = "";
	textPacket.objectId = -1;
	textPacket.numStars = -1;
	textPacket.bubbleTime = 0;
	textPacket.recipient = "";
	textPacket.text = text;
	textPacket.cleanText = "";
	event.sendToClient(textPacket);
}

The code up there is how to send a text packet showing the text in yellow font. It seems to only take the packet properties(?) and send them to client. NEW_TICK packet has the following properties[SIZE=1](?):

Code:

	
NEW_TICK
	int tickId
	int tickTime
	Status[] statuses
	
Status
	int objectId
	Location pos
	StatData[] data
	
StatData
	int obf0
	int obf1
	string obf2
	
Location
	float x
	float y
	float distanceSquaredTo(Location location)
	float distanceTo(Location location)

It doesn't contain a slot for ObjectData:

Code:

ObjectData
	string id
	int type
	int maxHitPoints
	int maxSize
	int minSize
	int size
	int sizeStep
	int shadowSize
	int color
	float xpMult
	float rotation
	boolean drawOnGround
	boolean enemy
	boolean fullOccupy
	boolean occupySquare
	boolean enemyOccupySquare
	boolean blocksSight
	boolean noMiniMap
	boolean stasisImmune
	boolean protectFromGroundDamage
	boolean protectFromSink
	boolean connects
	float z

The thing that I am trying to ask is how do I send to the client something that is not delivered by any packet by default, the things that client already know about. I mean the client knows that the size of Scorpion Queen is 150, but I want to change it via a command to 50. Something must deliver the information to client but I don't know who or what could it be? How can one include useless (something that doesn't belong in the specified packet) information in the specified packet?

**mSteaker** · 03-04-2014

Originally Posted by JustAnoobROTMG

There are far more outdated packet in jOryx than Hello

You should browse the SWF Actionscript using a decompiler like Sothink, As3Sorcerer or FFDEC..

Packets definitions always have a very talkative toString()

How do I know what to put into the packet? I have all of these variables but I when I send the packet I don't know what value to put in the gibberish ones.

Code:

	public String buildVersion;
	public int gameId;
	public String guid;
	public String password;
	public String secret;
	public int keyTime;
	public byte[] key = new byte[0];
	public byte[]  obf0 = new byte[0];
	public String obf1 = "";
	public String obf2 = "";
	public String obf3 = "";
	public String obf4 = "";
	public String obf5 = "";

**JustAnoobROTMG** · 03-05-2014

Originally Posted by CrazyJani

The thing that I am trying to ask is how do I send to the client something that is not delivered by any packet by default, the things that client already know about. I mean the client knows that the size of Scorpion Queen is 150, but I want to change it via a command to 50. Something must deliver the information to client but I don't know who or what could it be? How can one include useless (something that doesn't belong in the specified packet) information in the specified packet?

I dont think its possible without client modifications.
For an unknow reason, pets size can be changed on the fly, even if they do no change and are defined in XML.

I suppose the client do this :

if its a pet, apply packet "size"
else apply default size (XMl)

But you can always trying to modify "size" in UPDATE.
If the property is used at object creation only you 'll have to modify the UPDATE packet and not NEW_TICK

**JustAnoobROTMG** · 03-05-2014

Originally Posted by Wetish

How do I know what to put into the packet? I have all of these variables but I when I send the packet I don't know what value to put in the gibberish ones.

Code:

    public String buildVersion;
    public int gameId;
    public String guid;
    public String password;
    public String secret;
    public int keyTime;
    public byte[] key = new byte[0];
    public byte[]  obf0 = new byte[0];
    public String obf1 = "";
    public String obf2 = "";
    public String obf3 = "";
    public String obf4 = "";
    public String obf5 = "";

I dont know for "obfs". Maybe, make a Realm Relay addon which keep the unknow values and display them using a notification (using yellowAlert from Jani previous post?

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[Realm Relay] What do UPDATE packets contain?

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