Open a menu with Yes and No buttons

Hello,
I have an important question. I want to create plugin, which will on first player join to my server open the menu with yes and no buttons. The window will look like the window which opens when the server wants you to download custom texture pack. But there will be text with rules and question "Do you agree with rules?" and the two buttons. If players klick yes, it will allow him to play, and if he clicks no, it will kick him from the server.
I mean this window:

I have already been searching on forums.bukkit.org, but I haven't found any solution yet. I also searched on jd.bukkit.org, but it was also unsuccessful.
Please help me.
Thank you very much for responses.

 

Can't be done because Bukkit only controls the server side.

 

Yes, but this window has been sent from the server side. The server tells client to open this window.

 

The server sends a packet to the client that the client handles as "Open the server texture pack dialogue"
Since the client has got that dialogue inbuilt, it works. It won't have your custom dialogues in its code, which is why it wouldn't work.
Take a look at Spout, it can do what you want.

 

So there isn't any way how to open that window with own text inside it?

EDIT: What about

Code:

new Packet100OpenWindow(int i, int j, String s, int k)

(Link: https://github.com/Bukkit/mc-dev/blob/master/net/minecraft/server/Packet100OpenWindow.java)
I don't know the numbers of windows which can be opened...

 

That's a good thought, I'll try to work around with it when I get home.

 

I think it could be somehow done, becouse I saw a server where they had something like this. But unfortunately I forgot the IP...

 

That opens an inventory window:

http://wiki.vg/Protocol#Open_Window_.280x64.29

What you want to do cannot be done with Bukkit.

 

So which packet opens the window for texture packs?

 

That would be packet 250:

http://wiki.vg/Protocol#Plugin_Message_.280xFA.29

The channel is "MC|TPack" and the content is the texture pack URL. Nothing else is sent.

 

Then I found this:

Code:

// This informs Bukkit that you will send messages through that channel
Bukkit.getMessenger().registerOutgoingPluginChannel(plugin, channel);
 
// This informs Bukkit that you want to receive messages through that channel, to myPluginMessageListener
Bukkit.getMessenger().registerIncomingPluginChannel(plugin, channel, myPluginMessageListener);
 
class MyPluginMessageListener implements PluginMessageListener {
    public void onPluginMessageReceived(String channel, Player player, byte[] message) {
        // Do something with this message from the player
    }
}
 
somePlayer.sendPluginMessage(plugin, channel, message);

on this link: http://dinnerbone.com/blog/2012/01/13/minecraft-plugin-channels-messaging/.
So it is possible to set the message, right?

 

No, it is not possible to change what you see on the screen.

 

That's to be used with client mods. It won't do anything on its own.

 

And what about sending some other text to MC|TPack channel than TP url?

 

The client is expecting a URL, it won't know what to do if it gets something else.

Look, I know you really want this to work, but just stop. You've been told multiple times already that it isn't possible.

 

Ok, than I have the last question. What about the window, which opens when I click on some URL in chat? What channel is it or what packet is using that? Is this usable for my intention?

 

There is no packet involved, that is purely client-side.

 

if it was something else it would throw a MalformedURLEception when they clicked yes :/.

 

You are not reading what people are telling you - this isn't possible with Bukkit.

The URL-link thing is all client-side. The client sees a string of text that looks like a url and makes it clickeable. There's no packets or server involvement.

 

If you really want to do this, take a look at Spout, but be aware it requires the client mod SpoutCraft for it to show up on your client.