how to intercept and handle chat?

[Chronicide]

Hi everyone,

 

I've been reading through the javadocs, but I can't find any way to use forge to handle chat. Specifically, I want to detect when a player sends a general chat message, intercept the message and only deliver it to players within a certain radius of the sender. Most of that would be fairly straightforward, if only I could find where to initially intercept all chat (and how to detect which player sent the mesage_.

 

Does anyone know how to do this with the latest forge/minecraft.

 

Thanks!

 

- Chronicide

[ObsequiousNewt]

NetworkRegistry.instance().registerChatListener(your class extends IChatListener);

The method you define returns the chat that is sent.

[Chronicide]

Hello again, thanks for getting back to me so quickly! I was able to create a class that implements IChatListener, register it and modify chat programatically. My problem now is that I have no choice but to return a Packet3Chat object, which is then pushed to all players. I have no way to limit the chat to only certain players. Is there something that I'm missing?

[TheDragon]

Sorry if this response isnt helpful, as I am a total noob to modding.

However, just off the top of my head, could you not send an empty Packet3Chat to the players too far to hear, and send the 'actual' Packet3Chat to the ones within range?

 

[LexManos]

Well quick glance at it shows that the packet does not support canceling it.

You may want to write a PR for FML to add support for returning null from the handler.

Best bet for getting a new feature into FML is a pull request on github. {If you dont know how to do it, get someone who does, or learn}

[Chronicide]

Thanks TheDragon. No worries, I'm new to this too,and I appreciate any thoughts anyone can offer! =)

 

I had a similar idea, but there was a couple of issues with that. First, you cannot send an empty Packet3Chat. You can initialize it with an empty string, but it will still send the empty string, so everyone will receive a blank row in their chat.

 

The second and more troublesome issue is that there is still no way to selectively send the Packet3Chat to only certain players. It's an all or nothing sort of deal (at least, that's the case with adding a class that implements IChatListener... I'm hoping there is another method that will work). Even if I decided I could live with players receiving blank rows in their chat, I still have no way to limit it to those players within a given radius of the sender.

 

Again, I appreciate the idea. I'm thinking that I might have to subclass some other class, like NetHandler or something. I just need to find the class that is responsible for actually delivering the chat to everyone. if I can subclass it, I hope that I can override the default behaviour. Does anyone have a good grasp of the lifecycle of a chat message (as in, which classes/methods are involved)?

[Chronicide]

Hey LexManos, thanks for the reply. Is there some way that I can subclass the chat packet and handle it myself? I traced a chat message via debug, and it looks like it originates in the ChatGUI, is passed to the EntityClientPlayerMP, then wraps the message in a Packet3Chat object and adds it the the MemoryCollection cue. From there, the NetServerHandler handles the chat.

 

I'm new to minecraft modding... is there some way to jump in at any of the above stages to take control? I can extend any of the above methods that I want, but without some way to call the overridden method it won't do any good. I was thinking that I may be able to create my own chat gui/packet/network handler, but at that point I'm essentailly recreating forge.

 

I saw that there was a PR for a chat handler hook that was closed, so I'm not sure If I should make a new request.

 

Thanks again for your help!