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c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
51 lines
3.5 KiB
Diff
51 lines
3.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Sun, 8 Jan 2023 17:38:28 -0800
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Subject: [PATCH] Use single player info update packet on join
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index a2a7d499a68841ecd76ba029298094993a82bf39..a6f58438badb0bdeab67706f4a8e519b202623fe 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -3436,7 +3436,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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this.signedMessageDecoder = session.createMessageDecoder(this.player.getUUID());
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this.chatMessageChain.append(() -> {
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this.player.setChatSession(session);
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- this.server.getPlayerList().broadcastAll(new ClientboundPlayerInfoUpdatePacket(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.INITIALIZE_CHAT), List.of(this.player)));
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+ 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
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});
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}
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diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
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index 38b9ab369e25e4b718418375f76e782283b48411..bd67245393f512264db774e0b855db0ce925a3f4 100644
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--- a/src/main/java/net/minecraft/server/players/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
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@@ -361,6 +361,7 @@ public abstract class PlayerList {
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// CraftBukkit start - sendAll above replaced with this loop
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ClientboundPlayerInfoUpdatePacket packet = ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(player));
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+ final List<ServerPlayer> onlinePlayers = Lists.newArrayListWithExpectedSize(this.players.size() - 1); // Paper - Use single player info update packet on join
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for (int i = 0; i < this.players.size(); ++i) {
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ServerPlayer entityplayer1 = (ServerPlayer) this.players.get(i);
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@@ -368,12 +369,17 @@ public abstract class PlayerList {
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entityplayer1.connection.send(packet);
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}
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- if (!bukkitPlayer.canSee(entityplayer1.getBukkitEntity())) {
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+ if (entityplayer1 == player || !bukkitPlayer.canSee(entityplayer1.getBukkitEntity())) { // Paper - Use single player info update packet on join; Don't include joining player
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continue;
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}
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- player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityplayer1)));
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+ onlinePlayers.add(entityplayer1); // Paper - Use single player info update packet on join
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}
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+ // Paper start - Use single player info update packet on join
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+ if (!onlinePlayers.isEmpty()) {
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+ player.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(onlinePlayers));
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+ }
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+ // Paper end - Use single player info update packet on join
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player.sentListPacket = true;
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player.supressTrackerForLogin = false; // Paper - Fire PlayerJoinEvent when Player is actually ready
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((ServerLevel)player.level()).getChunkSource().chunkMap.addEntity(player); // Paper - Fire PlayerJoinEvent when Player is actually ready; track entity now
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