Client-side event when player joins a singleplayer/multiplayer server

[Arkyo]

Hi, is there an event for client-side when a player joins an integrated or dedicated server for 1.17+?

[Arkyo]

  On 2/22/2022 at 8:05 AM, diesieben07 said:

ClientPlayerNetworkEvent.LoggedInEvent

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Thanks, I'm trying to use the event to determine whether a player has joined an integrated/dedicated server, but it seems that `LocalPlayer` has no `getServer()` and thus I can't use `MinecraftServer#isDedicatedServer`

 

It crashes with `NoSuchMethodError` when i join an inte/dedi server

 

@SubscribeEvent
public static void onJoin(ClientPlayerNetworkEvent.LoggedInEvent event) {
	String serverType = event.getPlayer().getServer().isDedicatedServer() ? "Multiplayer" : "Singleplayer";
}

 

Edited February 22, 2022 by Arkyo

[Luis_ST]

your are on client so there is no Server

[Arkyo]

  On 2/22/2022 at 6:13 PM, Luis_ST said:

your are on client so there is no Server

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If so, is there an client-side event for this? I just want to determine on the client-side whether a player has joined an integrated/dedicated server

[Arkyo]

  On 2/22/2022 at 6:35 PM, diesieben07 said:

The event has getConnection. Connection#isMemoryConnection will tell you if this is a single player connection. Note that when "open the LAN" is selected, other players joining will see it as a normal server, not "single player".

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I don't think it has `getConnection()` ... Both IntelliJ and javadoc didn't show a `getConnection()` for LoggedInEvent

 

EDIT: there is a getNetworkManager() for this event which returns a Connection. However event.getNetworkManager().isMemoryConnection() still throws NoSuchMethodError

Edited February 22, 2022 by Arkyo

[Arkyo]

  On 2/22/2022 at 9:38 PM, diesieben07 said:

getConnection definitely exists. Show your code and the error.

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Imgur

 

And this is the error line in crash report when I used event.getNetworkManager().isMemoryConnection():

java.lang.NoSuchMethodError: 'boolean net.minecraft.network.Connection.isMemoryConnection()'

 

[Arkyo]

  On 2/22/2022 at 10:06 PM, diesieben07 said:

What version of Minecraft are you using?

Show the full stacktrace.

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1.17.1, Forge 37.1.1

https://pastebin.com/a0MzG42J

 

Should I try it on Forge 1.16.5 / 1.18.1?

Edited February 22, 2022 by Arkyo

[Arkyo]

  On 2/22/2022 at 10:27 PM, diesieben07 said:

1.17.1 is no longer a supported versions. Currently supported versions are 1.18.1 (Latest) and 1.16.5 (LTS).

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yeah, but even if I backport it to 1.16.5, updated the build.gradle and reloaded the project, there is still no event.getConnection().

[loordgek]

https://github.com/MinecraftForge/MinecraftForge/blob/1.16.x/src/main/java/net/minecraftforge/client/event/ClientPlayerNetworkEvent.java#L57

[Arkyo]

  On 2/22/2022 at 11:51 PM, loordgek said:

https://github.com/MinecraftForge/MinecraftForge/blob/1.16.x/src/main/java/net/minecraftforge/client/event/ClientPlayerNetworkEvent.java#L57

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Ok, but how can I use NetworkManager to achieve my goal? There is no isMemoryConnection() for 1.16.5

[Arkyo]

Ok I've found a hacky way for 1.16.5:

EDIT: Also works for 1.17.1

event.getNetworkManager().channel().remoteAddress().toString().startsWith("local:E") ? "Singleplayer" : "Multiplayer"

 

Edited February 23, 2022 by Arkyo