Paper/patches/server/0880-Properly-resend-entities.patch
Nassim Jahnke e035fd7034
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
cc9aa21a SPIGOT-6399, SPIGOT-7344: Clarify collidable behavior for player entities
f23325b6 Add API for per-world simulation distances
26e1774e Add API for per-world view distances
0b541e60 Add PlayerLoginEvent#getRealAddress
5f027d2d PR-949: Add Vector#fromJOML() overloads for read-only vector types

CraftBukkit Changes:
bcf56171a PR-1321: Clean up some stuff which got missed during previous PRs
7f833a2d1 SPIGOT-7462: Players no longer drop XP after dying near a Sculk Catalyst
752aac669 Implement APIs for per world view and simulation distances
57d7ef433 Preserve empty enchantment tags for glow effect
465ec3fb4 Remove connected check on setScoreboard
f90ce621e Use one PermissibleBase for all command blocks
5876cca44 SPIGOT-7550: Fix creation of Arrow instances
f03fc3aa3 SPIGOT-7549: ServerTickManager#setTickRate incorrect Precondition
9d7f49b01 SPIGOT-7548: Fix wrong spawn location for experience orb and dropped item

Spigot Changes:
ed9ba9a4 Drop no longer required patch ignoring -o option
86b5dd6a SPIGOT-7546: Fix hardcoded check for outdated client message
aa7cde7a Remove obsolete APIs for per world view and simulation distances
6dff577e Remove obsolete patch preserving empty `ench` tags
a3bf95b8 Remove obsolete PlayerLoginEvent#getRealAddress
1b02f5d6 Remove obsolete connected check on setScoreboard patch
acf717eb Remove obsolete command block PermissibleBase patch
053fa2a9 Remove redundant patch dealing with null tile entities
2023-12-26 00:18:13 +01:00

162 lines
9.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Wed, 7 Dec 2022 17:25:19 -0500
Subject: [PATCH] Properly resend entities
This resolves some issues which caused entities to not be resent correctly.
Entities that are interacted with need to be resent to the client, so we resend all the entity
data to the player whilst making sure not to clear dirty entries from the tracker. This makes
sure that values will be correctly updated to other players.
This also adds utilities to aid in further preventing entity desyncs.
See: https://github.com/PaperMC/Paper/pull/1896
== AT ==
public net.minecraft.server.level.ChunkMap$TrackedEntity serverEntity
diff --git a/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java b/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java
index d088479d160dbd2fc90b48a30553be141db8eef2..ccb7d92b6c36b6225a2e640f8cea6c0da37464c8 100644
--- a/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java
+++ b/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java
@@ -253,14 +253,63 @@ public class SynchedEntityData {
// CraftBukkit start
public void refresh(ServerPlayer to) {
if (!this.isEmpty()) {
- List<SynchedEntityData.DataValue<?>> list = this.getNonDefaultValues();
+ List<SynchedEntityData.DataValue<?>> list = this.packAll(); // Paper - Update EVERYTHING not just not default
if (list != null) {
+ if (to.getBukkitEntity().canSee(this.entity.getBukkitEntity())) { // Paper
to.connection.send(new ClientboundSetEntityDataPacket(this.entity.getId(), list));
+ } // Paper
}
}
}
// CraftBukkit end
+ // Paper start
+ // We need to pack all as we cannot rely on "non default values" or "dirty" ones.
+ // Because these values can possibly be desynced on the client.
+ @Nullable
+ private List<SynchedEntityData.DataValue<?>> packAll() {
+ if (this.isEmpty()) {
+ return null;
+ }
+
+ List<SynchedEntityData.DataValue<?>> list = new ArrayList<>();
+ for (DataItem<?> dataItem : this.itemsById.values()) {
+ list.add(dataItem.value());
+ }
+
+ return list;
+ }
+
+ // This method should only be used if the data of an entity could have became desynced
+ // due to interactions on the client.
+ public void resendPossiblyDesyncedEntity(ServerPlayer player) {
+ if (this.entity.tracker == null) {
+ return;
+ }
+
+ if (player.getBukkitEntity().canSee(entity.getBukkitEntity())) {
+ net.minecraft.server.level.ServerEntity serverEntity = this.entity.tracker.serverEntity;
+
+ List<net.minecraft.network.protocol.Packet<net.minecraft.network.protocol.game.ClientGamePacketListener>> list = new ArrayList<>();
+ serverEntity.sendPairingData(player, list::add);
+ player.connection.send(new net.minecraft.network.protocol.game.ClientboundBundlePacket(list));
+ }
+ }
+
+ // This method allows you to specifically resend certain data accessor keys to the client
+ public void resendPossiblyDesyncedDataValues(List<EntityDataAccessor<?>> keys, ServerPlayer to) {
+ if (!to.getBukkitEntity().canSee(this.entity.getBukkitEntity())) {
+ return;
+ }
+ List<SynchedEntityData.DataValue<?>> values = new ArrayList<>(keys.size());
+ for (EntityDataAccessor<?> key : keys) {
+ SynchedEntityData.DataItem<?> synchedValue = this.getItem(key);
+ values.add(synchedValue.value());
+ }
+
+ to.connection.send(new ClientboundSetEntityDataPacket(this.entity.getId(), values));
+ }
+ // Paper end
public static class DataItem<T> {
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index a30523973711210e8c4b74d2f6cbce4314709338..d4187f23bdebbab0cbee72009e0257de3e1c876c 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2651,7 +2651,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
// Entity in bucket - SPIGOT-4048 and SPIGOT-6859a
if ((entity instanceof Bucketable && entity instanceof LivingEntity && origItem != null && origItem.asItem() == Items.WATER_BUCKET) && (event.isCancelled() || ServerGamePacketListenerImpl.this.player.getInventory().getSelected() == null || ServerGamePacketListenerImpl.this.player.getInventory().getSelected().getItem() != origItem)) {
- ServerGamePacketListenerImpl.this.send(new ClientboundAddEntityPacket(entity));
+ entity.getEntityData().resendPossiblyDesyncedEntity(player); // Paper - The entire mob gets deleted, so resend it.
ServerGamePacketListenerImpl.this.player.containerMenu.sendAllDataToRemote();
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 4bf3598f8d6f6f469a5a17e8067fd5035732da19..e1c0811c6dc8f3e268c60d23a25942a2c6d22475 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -376,7 +376,7 @@ public abstract class PlayerList {
((ServerLevel)player.level()).getChunkSource().chunkMap.addEntity(player); // Paper - track entity now
// CraftBukkit end
- player.getEntityData().refresh(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn
+ //player.getEntityData().refresh(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn Paper - THIS IS NOT NEEDED ANYMORE
this.sendLevelInfo(player, worldserver1);
diff --git a/src/main/java/net/minecraft/world/entity/animal/Bucketable.java b/src/main/java/net/minecraft/world/entity/animal/Bucketable.java
index 37596c7b65f280be00e8e59ae18bd1aceae21080..eca18540aeb0b0d4098477d73b14c78a7bf9f455 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Bucketable.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Bucketable.java
@@ -109,8 +109,7 @@ public interface Bucketable {
itemstack1 = CraftItemStack.asNMSCopy(playerBucketFishEvent.getEntityBucket());
if (playerBucketFishEvent.isCancelled()) {
((ServerPlayer) player).containerMenu.sendAllDataToRemote(); // We need to update inventory to resync client's bucket
- ((ServerPlayer) player).connection.send(new ClientboundAddEntityPacket(entity)); // We need to play out these packets as the client assumes the fish is gone
- entity.getEntityData().refresh((ServerPlayer) player); // Need to send data such as the display name to client
+ entity.getEntityData().resendPossiblyDesyncedEntity((ServerPlayer) player); // Paper
return Optional.of(InteractionResult.FAIL);
}
entity.playSound(((Bucketable) entity).getPickupSound(), 1.0F, 1.0F);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 763462e4cf8abdd654b582150fab09f05e64f990..7cda23cf7400edcfa1436f6457edd7566cd42323 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -947,7 +947,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
return;
}
- entityTracker.broadcast(this.getHandle().getAddEntityPacket());
+ // Paper start, resend possibly desynced entity instead of add entity packet
+ for (ServerPlayerConnection playerConnection : entityTracker.seenBy) {
+ this.getHandle().getEntityData().resendPossiblyDesyncedEntity(playerConnection.getPlayer());
+ }
+ // Paper end
}
private static PermissibleBase getPermissibleBase() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
index 0801bcdee8fcff0d388d302387e4f1d587e0a283..2fcd9b836d42e3549a3b6b921c57a4c103146dff 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
@@ -39,9 +39,11 @@ public class CraftItemFrame extends CraftHanging implements ItemFrame {
protected void update() {
super.update();
+ // Paper start, don't mark as dirty as this is handled in super.update()
// mark dirty, so that the client gets updated with item and rotation
- this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ITEM);
- this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ROTATION);
+ //this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ITEM);
+ //this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ROTATION);
+ // Paper end
// update redstone
if (!this.getHandle().generation) {