From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com> Date: Fri, 22 Mar 2019 22:24:03 -0700 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. See: https://github.com/PaperMC/Paper/pull/1896 Co-authored-by: AgentTroll m diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEntityDataPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEntityDataPacket.java index 3e17f6131bf590d7c4a16b79c1c145cb4f565bc9..bf838c097aeb79fbe82c0b6cdf3315acf03474cd 100644 --- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEntityDataPacket.java +++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEntityDataPacket.java @@ -12,10 +12,15 @@ public class ClientboundSetEntityDataPacket implements Packet> packedItems; public ClientboundSetEntityDataPacket(int id, SynchedEntityData tracker, boolean forceUpdateAll) { + // Paper start + this(id, tracker, forceUpdateAll, true); + } + public ClientboundSetEntityDataPacket(int id, SynchedEntityData tracker, boolean forceUpdateAll, boolean clearDirty) { + // Paper end this.id = id; if (forceUpdateAll) { this.packedItems = tracker.getAll(); - tracker.clearDirty(); + if (clearDirty) tracker.clearDirty(); // Paper } else { this.packedItems = tracker.packDirty(); } diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index b6034a7f6748a87669326e1bcfde351757e88234..2077f0cea1735e33243f0d63156cb4b0a8bacc22 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -1194,5 +1194,24 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } } + // Paper start + // 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 (player.getBukkitEntity().canSee(entity.getBukkitEntity())) { + // This will prevent the entity data from being cleared, so that ONLY this player + // will have its entity data updated and it won't dirty the datatracker for other players. + this.serverEntity.clearDirtyEntityData = false; + this.serverEntity.sendPairingData(player.connection::send, player); + this.serverEntity.clearDirtyEntityData = true; + } + } + + public void resendPossiblyDesyncedEntityData(ServerPlayer player) { + if (player.getBukkitEntity().canSee(entity.getBukkitEntity())) { + player.connection.send(new net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true, false)); + } + } + // Paper end } } diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java index d6f34adbdf45bbef4a39e629dd7cb6d7fcb5db0f..286a14aafe2e8b4662515165ede8a74833897f33 100644 --- a/src/main/java/net/minecraft/server/level/ServerEntity.java +++ b/src/main/java/net/minecraft/server/level/ServerEntity.java @@ -66,6 +66,7 @@ public class ServerEntity { private boolean wasOnGround; // CraftBukkit start final Set trackedPlayers; // Paper - private -> package + public boolean clearDirtyEntityData = true; // Paper public ServerEntity(ServerLevel worldserver, Entity entity, int i, boolean flag, Consumer> consumer, Set trackedPlayers) { this.trackedPlayers = trackedPlayers; @@ -265,7 +266,7 @@ public class ServerEntity { this.yHeadRotp = Mth.floor(this.entity.getYHeadRot() * 256.0F / 360.0F); consumer.accept(packet); if (!this.entity.getEntityData().isEmpty()) { - consumer.accept(new ClientboundSetEntityDataPacket(this.entity.getId(), this.entity.getEntityData(), true)); + consumer.accept(new ClientboundSetEntityDataPacket(this.entity.getId(), this.entity.getEntityData(), true, this.clearDirtyEntityData)); // Paper } boolean flag = this.trackDelta; @@ -371,6 +372,13 @@ public class ServerEntity { } + // Paper start - Add broadcast method + @Deprecated(forRemoval = true) + void broadcast(Packet packet) { + this.broadcast.accept(packet); + } + // Paper end + private void broadcastAndSend(Packet packet) { this.broadcast.accept(packet); if (this.entity instanceof ServerPlayer) { diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java index 1c1ba459535296e029a8d39a5f78d60eb29cdb71..838b867c5e7e8730a200a53687e7470087df9fce 100644 --- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java +++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java @@ -2721,7 +2721,11 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic // Entity in bucket - SPIGOT-4048 and SPIGOT-6859 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)); + // Paper start + if (entity.tracker != null) { + entity.tracker.resendPossiblyDesyncedEntity(((ServerPlayer) player)); // The entire mob gets deleted, so resend it. + } + // Paper end player.containerMenu.sendAllDataToRemote(); } @@ -2732,7 +2736,11 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic if (event.isCancelled() || ServerGamePacketListenerImpl.this.player.getInventory().getSelected() == null || ServerGamePacketListenerImpl.this.player.getInventory().getSelected().getItem() != origItem) { // Refresh the current entity metadata - ServerGamePacketListenerImpl.this.send(new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true)); + // Paper start + if (entity.tracker != null) { + entity.tracker.resendPossiblyDesyncedEntityData(((ServerPlayer) player)); + } + // Paper end // SPIGOT-7136 - Allays if (entity instanceof Allay) { ServerGamePacketListenerImpl.this.send(new ClientboundSetEquipmentPacket(entity.getId(), Arrays.stream(net.minecraft.world.entity.EquipmentSlot.values()).map((slot) -> Pair.of(slot, ((LivingEntity) entity).getItemBySlot(slot).copy())).collect(Collectors.toList()))); 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 87b9c3cd91f91df58e5175aaf3e8d32914b062d4..974ced175bf2bcd1b4529e6d14f0931df5cbde26 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Bucketable.java +++ b/src/main/java/net/minecraft/world/entity/animal/Bucketable.java @@ -110,8 +110,11 @@ 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 - ((ServerPlayer) player).connection.send(new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true)); // Need to send data such as the display name to client + // Paper start + if (entity.tracker != null) { + entity.tracker.resendPossiblyDesyncedEntity(((ServerPlayer) player)); + } + // Paper end return Optional.of(InteractionResult.FAIL); } entity.playSound(((Bucketable) entity).getPickupSound(), 1.0F, 1.0F);