How to send and receive packets between spigot and forge

[SunnyLo]

1. I want to send a packet in forge client when a player joins the server

2. I want spigot to send a packet when issue a spigot command. Then the forge mod reacts back with another packet.

 

Spigot link with same things: https://www.spigotmc.org/threads/how-to-send-and-receive-packets-between-spigot-and-forge.321331/

Edited May 29, 2018 by SunnyLo
Added spigot link

[SunnyLo]

Thanks for the respond. But can you tell me more detail about it?

[SunnyLo]

First,
I'm using this class to receive packets. https://hastebin.com/amijotirif.java

How do I check if the "EntityPlayerMP" to the player that is playing?

 

Second,

What should I do to receive packets in spigot?

Third,
What should I do to send packets in spigot?

[Draco18s]

31 minutes ago, SunnyLo said:

How do I check if the "EntityPlayerMP" to the player that is playing?

On the server:

The player in the message context IS the player that sent the packet

 

On the client:

The player that received the message IS the player that is playing...

 

What more do you need?

[SunnyLo]

Forget to quote, deleted msg

Edited May 31, 2018 by SunnyLo

[SunnyLo]

11 hours ago, Draco18s said:

On the server:

The player in the message context IS the player that sent the packet

 

On the client:

The player that received the message IS the player that is playing...

 

What more do you need?

EntityPlayer entityPlayer = Minecraft.getMinecraft().thePlayer;
if (entityPlayer == serverPlayer) {
    System.out.println(msg);
}

 

Like this?

[SunnyLo]

47 minutes ago, diesieben07 said:

This is not a spigot forum. The real answer is: Switch to Sponge, Bukkit is dead.

But if I use sponge, every player MUST install this mod, I just want this mod to be extra. Such as betterpvp mod or 5zig.

 

Please correct me if I'm wrong

Edited May 31, 2018 by SunnyLo

[Draco18s]

7 hours ago, SunnyLo said:

EntityPlayer entityPlayer = Minecraft.getMinecraft().thePlayer;
if (entityPlayer == serverPlayer) {
    System.out.println(msg);
}

 

Like this?

 

This check makes no fucking sense.

On the server, the player that sent the packet is the only player that matters.

On the client, when the client receives the packet, that player is the only player that matters.

Do not perform this check. You do not need it. Just act on the context's player.

[SunnyLo]

Okay, so sponge is actually a bukkit replacement. So can spigot plugins work on sponge server?

And what should I do to perform the check?

[SunnyLo]

The check that you say makes zero sense.

[SunnyLo]

Oh yeah, I'm dump. Why I need this check. I'm new to forge, please forgive me.

[SunnyLo]

It seems to be not working. know why?

 

Code for the plugin: https://hastebin.com/avijezutus.java

Code for the mod: https://hastebin.com/pajegewofi.java

Edited June 1, 2018 by SunnyLo
Updated link

[SunnyLo]

13 hours ago, diesieben07 said:

You are sending the packet to the client, why are you registering it for both directions in Forge?

Because I want to send packets both from spigot to forge and forge to spigot.

 

13 hours ago, diesieben07 said:

No. No no no. Read and understand: https://mcforge.readthedocs.io/en/latest/concepts/sides/

I'll remove the thing.

 

13 hours ago, diesieben07 said:

On the Forge side you are using readUTF8String, which expects the text to be prefixed with it's byte-length as a VarInt (look at the code if you are unsure). The format for your message must match between sending and receiving end.

I've found this thread which someone ask the same thing as me. But he/you didn't show the code. Can you post an example code of using ByteArrayDataOutput?

http://www.minecraftforge.net/forum/topic/59154-communication-between-forge-mod-and-bukkit-plugin/

[SunnyLo]

I'll see what I can do