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. This also also fixes the bug causing cancelling PlayerInteractEvent to cause items to continue to be used despite being cancelled on the server. For example, items being consumed but never finishing, shields being put up, etc. The underlying issue of this is that the client modifies their synced data values, and so we have to (forcibly) resend them in order for the client to reset their using item state. See: https://github.com/PaperMC/Paper/pull/1896 Feature patch == 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 02bf2705ca1c99023a83a22d92e1962181102297..0f99733660f91280e4c6262cf75b3c9cae86f65a 100644 --- a/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java +++ b/src/main/java/net/minecraft/network/syncher/SynchedEntityData.java @@ -50,7 +50,7 @@ public class SynchedEntityData { } } - private SynchedEntityData.DataItem getItem(EntityDataAccessor key) { + public SynchedEntityData.DataItem getItem(EntityDataAccessor key) { // Paper - public return (SynchedEntityData.DataItem) this.itemsById[key.id()]; // CraftBukkit - decompile error } @@ -151,6 +151,20 @@ public class SynchedEntityData { } } + // 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 + public List> packAll() { + final List> list = new ArrayList<>(); + for (final DataItem dataItem : this.itemsById) { + list.add(dataItem.value()); + } + + return list; + } + // Paper end + public static class DataItem { final EntityDataAccessor accessor; diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java index f2dd272a01b4e946a6746865d55ebc9861f8361b..5d189ba60d40f5c42b2dacc339594ed067418e95 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java @@ -567,6 +567,7 @@ public class ServerPlayerGameMode { } // Paper end - extend Player Interact cancellation player.getBukkitEntity().updateInventory(); // SPIGOT-2867 + this.player.resyncUsingItem(this.player); // Paper - Properly cancel usable items return (event.useItemInHand() != Event.Result.ALLOW) ? InteractionResult.SUCCESS : InteractionResult.PASS; } else if (this.gameModeForPlayer == GameType.SPECTATOR) { MenuProvider itileinventory = iblockdata.getMenuProvider(world, blockposition); @@ -618,6 +619,11 @@ public class ServerPlayerGameMode { return enuminteractionresult; } else { + // Paper start - Properly cancel usable items; Cancel only if cancelled + if the interact result is different from default response + if (this.interactResult && this.interactResult != cancelledItem) { + this.player.resyncUsingItem(this.player); + } + // Paper end - Properly cancel usable items return InteractionResult.PASS; } } diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java index da719576b2c7e992b74266c7fbe5c9728d238dcf..c93aa97abd46b3ad87e284feac51487ed50b9f5a 100644 --- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java +++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java @@ -1967,6 +1967,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl } if (cancelled) { + this.player.resyncUsingItem(this.player); // Paper - Properly cancel usable items this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524 return; } @@ -2738,7 +2739,7 @@ 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)) { - entity.getBukkitEntity().update(ServerGamePacketListenerImpl.this.player); + entity.resendPossiblyDesyncedEntityData(ServerGamePacketListenerImpl.this.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 b451842d6848af883cc3abf200f03c9a4680106c..88299abf563a041ade1683b66b43103b0eeeea0d 100644 --- a/src/main/java/net/minecraft/server/players/PlayerList.java +++ b/src/main/java/net/minecraft/server/players/PlayerList.java @@ -396,7 +396,7 @@ public abstract class PlayerList { ((ServerLevel)player.level()).getChunkSource().chunkMap.addEntity(player); // Paper - Fire PlayerJoinEvent when Player is actually ready; track entity now // CraftBukkit end - player.refreshEntityData(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn + //player.refreshEntityData(player); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn // Paper - THIS IS NOT NEEDED ANYMORE this.sendLevelInfo(player, worldserver1); @@ -907,12 +907,17 @@ public abstract class PlayerList { } public void sendActiveEffects(LivingEntity entity, ServerGamePacketListenerImpl networkHandler) { + // Paper start - collect packets + this.sendActiveEffects(entity, networkHandler::send); + } + public void sendActiveEffects(LivingEntity entity, java.util.function.Consumer> packetConsumer) { + // Paper end - collect packets Iterator iterator = entity.getActiveEffects().iterator(); while (iterator.hasNext()) { MobEffectInstance mobeffect = (MobEffectInstance) iterator.next(); - networkHandler.send(new ClientboundUpdateMobEffectPacket(entity.getId(), mobeffect, false)); + packetConsumer.accept(new ClientboundUpdateMobEffectPacket(entity.getId(), mobeffect, false)); // Paper - collect packets } } diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index 6a4f52342c5a195206ecf3ac118e8a4df4d2f3d2..20fcfb7d7d2541731452454d78f6967215c4fcd7 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -599,13 +599,45 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess // CraftBukkit start public void refreshEntityData(ServerPlayer to) { - List> list = this.getEntityData().getNonDefaultValues(); + List> list = this.entityData.packAll(); // Paper - Update EVERYTHING not just not default - if (list != null) { + if (list != null && to.getBukkitEntity().canSee(this.getBukkitEntity())) { // Paper to.connection.send(new ClientboundSetEntityDataPacket(this.getId(), list)); } } // CraftBukkit end + // Paper start + // This method should only be used if the data of an entity could have become desynced + // due to interactions on the client. + public void resendPossiblyDesyncedEntityData(net.minecraft.server.level.ServerPlayer player) { + if (player.getBukkitEntity().canSee(this.getBukkitEntity())) { + ServerLevel world = (net.minecraft.server.level.ServerLevel)this.level(); + net.minecraft.server.level.ChunkMap.TrackedEntity tracker = world == null ? null : world.getChunkSource().chunkMap.entityMap.get(this.getId()); + if (tracker == null) { + return; + } + final net.minecraft.server.level.ServerEntity serverEntity = tracker.serverEntity; + final List> list = new java.util.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> keys, ServerPlayer to) { + if (!to.getBukkitEntity().canSee(this.getBukkitEntity())) { + return; + } + + final List> values = new java.util.ArrayList<>(keys.size()); + for (final EntityDataAccessor key : keys) { + final SynchedEntityData.DataItem synchedValue = this.entityData.getItem(key); + values.add(synchedValue.value()); + } + + to.connection.send(new ClientboundSetEntityDataPacket(this.id, values)); + } + // Paper end public boolean equals(Object object) { return object instanceof Entity ? ((Entity) object).id == this.id : false; diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java index ed26eb5e8cc9a46e4a4d2c58d587463d5571a8e0..5616391f02f8599f5786a6d8e740a0ed9290627f 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -4030,6 +4030,11 @@ public abstract class LivingEntity extends Entity implements Attackable { return ((Byte) this.entityData.get(LivingEntity.DATA_LIVING_ENTITY_FLAGS) & 2) > 0 ? InteractionHand.OFF_HAND : InteractionHand.MAIN_HAND; } + // Paper start - Properly cancel usable items + public void resyncUsingItem(ServerPlayer serverPlayer) { + this.resendPossiblyDesyncedDataValues(java.util.List.of(DATA_LIVING_ENTITY_FLAGS), serverPlayer); + } + // Paper end - Properly cancel usable items private void updatingUsingItem() { if (this.isUsingItem()) { if (ItemStack.isSameItem(this.getItemInHand(this.getUsedItemHand()), this.useItem)) { 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 5a12f4c1de2d020e84af933d491397b38d227824..4eca5996a867086be22d22d99db81ab001467516 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Bucketable.java +++ b/src/main/java/net/minecraft/world/entity/animal/Bucketable.java @@ -108,8 +108,7 @@ 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 - entity.getBukkitEntity().update((ServerPlayer) player); // We need to play out these packets as the client assumes the fish is gone - entity.refreshEntityData((ServerPlayer) player); // Need to send data such as the display name to client + entity.resendPossiblyDesyncedEntityData((ServerPlayer) player); // Paper return Optional.of(InteractionResult.FAIL); } entity.playSound(((Bucketable) entity).getPickupSound(), 1.0F, 1.0F); diff --git a/src/main/java/net/minecraft/world/item/component/Consumable.java b/src/main/java/net/minecraft/world/item/component/Consumable.java index fe8618451e3a3f5185704f791723f7897870b6f2..6be5e7b0ce975702ae7c337a06faa59ff3414d64 100644 --- a/src/main/java/net/minecraft/world/item/component/Consumable.java +++ b/src/main/java/net/minecraft/world/item/component/Consumable.java @@ -97,10 +97,12 @@ public record Consumable(float consumeSeconds, ItemUseAnimation animation, Holde // CraftBukkit start public void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack) { + final java.util.List> packets = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>(); // Paper - properly resend entities - collect packets for bundle itemstack.getAllOfType(ConsumableListener.class).forEach((consumablelistener) -> { - consumablelistener.cancelUsingItem(entityplayer, itemstack); + consumablelistener.cancelUsingItem(entityplayer, itemstack, packets); // Paper - properly resend entities - collect packets for bundle }); - entityplayer.server.getPlayerList().sendActivePlayerEffects(entityplayer); + entityplayer.server.getPlayerList().sendActiveEffects(entityplayer, packets::add); // Paper - properly resend entities - collect packets for bundle + entityplayer.connection.send(new net.minecraft.network.protocol.game.ClientboundBundlePacket(packets)); } // CraftBukkit end diff --git a/src/main/java/net/minecraft/world/item/component/ConsumableListener.java b/src/main/java/net/minecraft/world/item/component/ConsumableListener.java index 03ff8a5aa5083d87d77b68371557cf4e97003114..c66475c7e20b5752dcc9263e44f541f9f2b8e6de 100644 --- a/src/main/java/net/minecraft/world/item/component/ConsumableListener.java +++ b/src/main/java/net/minecraft/world/item/component/ConsumableListener.java @@ -8,5 +8,5 @@ public interface ConsumableListener { void onConsume(Level world, LivingEntity user, ItemStack stack, Consumable consumable); - default void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack) {} // CraftBukkit + default void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack, java.util.List> collectedPackets) {} // CraftBukkit // Paper - properly resend entities - collect packets for bundle } diff --git a/src/main/java/net/minecraft/world/item/component/OminousBottleAmplifier.java b/src/main/java/net/minecraft/world/item/component/OminousBottleAmplifier.java index 202d3c4741f3f6468a09bfd8e661b9823a332ea7..6b5723b817e48a4c231014f28e45b20754c2c090 100644 --- a/src/main/java/net/minecraft/world/item/component/OminousBottleAmplifier.java +++ b/src/main/java/net/minecraft/world/item/component/OminousBottleAmplifier.java @@ -28,8 +28,14 @@ public record OminousBottleAmplifier(int value) implements ConsumableListener, T @Override public void onConsume(Level world, LivingEntity user, ItemStack stack, Consumable consumable) { - user.addEffect(new MobEffectInstance(MobEffects.BAD_OMEN, 120000, this.value, false, false, true)); + user.addEffect(new MobEffectInstance(MobEffects.BAD_OMEN, 120000, this.value, false, false, true)); // Paper - properly resend entities - diff on change for below } + // Paper start - properly resend entities - collect packets for bundle + @Override + public void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack, java.util.List> collectedPackets) { + collectedPackets.add(new net.minecraft.network.protocol.game.ClientboundRemoveMobEffectPacket(entityplayer.getId(), MobEffects.BAD_OMEN)); + } + // Paper end - properly resend entities - collect packets for bundle @Override public void addToTooltip(Item.TooltipContext context, Consumer tooltip, TooltipFlag type) { diff --git a/src/main/java/net/minecraft/world/item/component/SuspiciousStewEffects.java b/src/main/java/net/minecraft/world/item/component/SuspiciousStewEffects.java index 04760d8ba7c560bd9d11191c666715ae8c3e4bff..021169d709964b1bb65e49bf3fcf3119f0749448 100644 --- a/src/main/java/net/minecraft/world/item/component/SuspiciousStewEffects.java +++ b/src/main/java/net/minecraft/world/item/component/SuspiciousStewEffects.java @@ -46,9 +46,9 @@ public record SuspiciousStewEffects(List effects) i // CraftBukkit start @Override - public void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack) { + public void cancelUsingItem(net.minecraft.server.level.ServerPlayer entityplayer, ItemStack itemstack, java.util.List> collectedPackets) { // Paper - properly resend entities - collect packets for bundle for (SuspiciousStewEffects.Entry suspicioussteweffects_a : this.effects) { - entityplayer.connection.send(new net.minecraft.network.protocol.game.ClientboundRemoveMobEffectPacket(entityplayer.getId(), suspicioussteweffects_a.effect())); + collectedPackets.add(new net.minecraft.network.protocol.game.ClientboundRemoveMobEffectPacket(entityplayer.getId(), suspicioussteweffects_a.effect())); // Paper - bundlize packets } } // CraftBukkit end diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java index 2b1f3e27ce5cecc94297c27debe5e3bd64c08967..d1d9916db7bd4886d30355e6a0ecb69cd21c2364 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java @@ -1008,7 +1008,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity { return; } - entityTracker.broadcast(this.getHandle().getAddEntityPacket(entityTracker.serverEntity)); + // Paper start - resend possibly desynced entity instead of add entity packet + for (final ServerPlayerConnection connection : entityTracker.seenBy) { + this.getHandle().resendPossiblyDesyncedEntityData(connection.getPlayer()); + } + // Paper end - resend possibly desynced entity instead of add entity packet } public void update(ServerPlayer player) { diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java index f3a9b3380246fb2dd4b60a8d1a94c5dfed98d316..350ad61ab3fe66abd528e353b431a4a6dac17506 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) {