Paper/patches/server/0780-Use-single-player-info-update-packet-on-join.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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3.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 8 Jan 2023 17:38:28 -0800
Subject: [PATCH] Use single player info update packet on join
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 762382b45afbc18810787858539fba62afc3e84c..66655aecd83138760e5d7601d22b95bb1bf0ec98 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3487,7 +3487,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
this.signedMessageDecoder = session.createMessageDecoder(this.player.getUUID());
this.chatMessageChain.append(() -> {
this.player.setChatSession(session);
- this.server.getPlayerList().broadcastAll(new ClientboundPlayerInfoUpdatePacket(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT), List.of(this.player)));
+ this.server.getPlayerList().broadcastAll(new ClientboundPlayerInfoUpdatePacket(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT), List.of(this.player)), this.player); // Paper - Use single player info update packet on join
});
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 4b8636c2107e6a16c26f259e0dbdbc40a1268e06..7da3e315de67f3273997ce9160995183a3a1ce71 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -364,6 +364,7 @@ public abstract class PlayerList {
// CraftBukkit start - sendAll above replaced with this loop
ClientboundPlayerInfoUpdatePacket packet = ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(player));
+ final List<ServerPlayer> onlinePlayers = Lists.newArrayListWithExpectedSize(this.players.size() - 1); // Paper - Use single player info update packet on join
for (int i = 0; i < this.players.size(); ++i) {
ServerPlayer entityplayer1 = (ServerPlayer) this.players.get(i);
@@ -371,12 +372,17 @@ public abstract class PlayerList {
entityplayer1.connection.send(packet);
}
- if (!bukkitPlayer.canSee(entityplayer1.getBukkitEntity())) {
+ if (entityplayer1 == player || !bukkitPlayer.canSee(entityplayer1.getBukkitEntity())) { // Paper - Use single player info update packet on join; Don't include joining player
continue;
}
- player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityplayer1)));
+ onlinePlayers.add(entityplayer1); // Paper - Use single player info update packet on join
}
+ // Paper start - Use single player info update packet on join
+ if (!onlinePlayers.isEmpty()) {
+ player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(onlinePlayers));
+ }
+ // Paper end - Use single player info update packet on join
player.sentListPacket = true;
player.supressTrackerForLogin = false; // Paper - Fire PlayerJoinEvent when Player is actually ready
((ServerLevel)player.level()).getChunkSource().chunkMap.addEntity(player); // Paper - Fire PlayerJoinEvent when Player is actually ready; track entity now