Question about "custom" packet events

[Reflxction]

Hello, in my mod I have come to the need of using packet events. The only events I found were the CustomPacketEvent and its subclasses. I don't get the meaning of "custom" packet, does it mean that the packet was made by an external mod and not Forge, or made by Forge and not from Minecraft itself, or does it involve ANY packet? If not, are there any handy ways to modify a packet or cancel it? Thanks in advance.

Edited July 11, 2018 by Reflxction

[DaemonUmbra]

If you need to use a packet system SimpleImpl is rather easy to use.

For raw packets I believe you will want to look at the NetworkRegistry

Edited July 11, 2018 by DaemonUmbra

[Reflxction]

  On 7/11/2018 at 1:18 AM, DaemonUmbra said:

If you need to use a packet system SimpleImpl is rather easy to use.

For raw packets I believe you will want to look at the NetworkRegistry

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That sounds rather useful, but my question was about events not packets themselves 

Edited July 11, 2018 by Reflxction

[Reflxction]

  On 7/11/2018 at 11:29 AM, diesieben07 said:

There are no events for vanilla packets. Modifying/Changing vanilla packets is not supported, as it would break vanilla clients connecting to a server.

Custom here means "added by a mod". Mods can send data over the network through the use of Plugin channels. FML exposes this functionality either through the use of the above-linked SimplImpl or by using an event-based system (events fire when packets are received on your channel).

What are you trying to achieve?

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Hm I see. Mainly trying to modify the client chat packet that is being sent when sending a chat message. I'm aware that this was added in future versions (I became after making the thread), the thing is I'm using 1.8.9 for my current mod (I know I should be on latest, but currently it's the most commonly used in pvp servers and such). I'll just stick with what I currently have, thanks 

Edited July 12, 2018 by Reflxction