geforkt von Mirrors/Paper
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.
172 Zeilen
13 KiB
Diff
172 Zeilen
13 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
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Date: Tue, 27 Jun 2023 21:09:11 -0400
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Subject: [PATCH] Dont resend blocks on interactions
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In general, the client now has an acknowledgment system which will prevent block changes made by the client to be reverted correctly.
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It should be noted that this system does not yet support block entities, so those still need to resynced when needed.
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
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index d839f8df658c894f144ba4637d290ffbed77e132..415d9802ae4dd75b44055b8faf19672fa50c585f 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
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@@ -204,7 +204,7 @@ public class ServerPlayerGameMode {
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PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_BLOCK, pos, direction, this.player.getInventory().getSelected(), InteractionHand.MAIN_HAND);
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if (event.isCancelled()) {
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// Let the client know the block still exists
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync blocks
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// Update any tile entity data for this block
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capturedBlockEntity = true; // Paper - Send block entities after destroy prediction
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return;
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@@ -219,7 +219,7 @@ public class ServerPlayerGameMode {
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// Spigot start - handle debug stick left click for non-creative
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if (this.player.getMainHandItem().is(net.minecraft.world.item.Items.DEBUG_STICK)
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&& ((net.minecraft.world.item.DebugStickItem) net.minecraft.world.item.Items.DEBUG_STICK).handleInteraction(this.player, this.level.getBlockState(pos), this.level, pos, false, this.player.getMainHandItem())) {
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync block
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return;
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}
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// Spigot end
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@@ -237,15 +237,17 @@ public class ServerPlayerGameMode {
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// CraftBukkit start - Swings at air do *NOT* exist.
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if (event.useInteractedBlock() == Event.Result.DENY) {
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// If we denied a door from opening, we need to send a correcting update to the client, as it already opened the door.
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- BlockState data = this.level.getBlockState(pos);
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- if (data.getBlock() instanceof DoorBlock) {
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- // For some reason *BOTH* the bottom/top part have to be marked updated.
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- boolean bottom = data.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER;
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, bottom ? pos.above() : pos.below()));
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- } else if (data.getBlock() instanceof TrapDoorBlock) {
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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- }
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+ // Paper start - Don't resync blocks
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+ //BlockState data = this.level.getBlockState(pos);
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+ //if (data.getBlock() instanceof DoorBlock) {
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+ // // For some reason *BOTH* the bottom/top part have to be marked updated.
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+ // boolean bottom = data.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER;
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, bottom ? pos.above() : pos.below()));
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+ //} else if (data.getBlock() instanceof TrapDoorBlock) {
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ //}
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+ // Paper end - Don't resync blocks
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} else if (!iblockdata.isAir()) {
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EnchantmentHelper.onHitBlock(this.level, this.player.getMainHandItem(), this.player, this.player, EquipmentSlot.MAINHAND, Vec3.atCenterOf(pos), iblockdata, (item) -> {
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this.player.onEquippedItemBroken(item, EquipmentSlot.MAINHAND);
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@@ -257,7 +259,7 @@ public class ServerPlayerGameMode {
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if (event.useItemInHand() == Event.Result.DENY) {
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// If we 'insta destroyed' then the client needs to be informed.
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if (f > 1.0f) {
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync blocks
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}
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return;
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}
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@@ -265,7 +267,7 @@ public class ServerPlayerGameMode {
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if (blockEvent.isCancelled()) {
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// Let the client know the block still exists
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync block
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return;
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}
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@@ -356,7 +358,7 @@ public class ServerPlayerGameMode {
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// Tell client the block is gone immediately then process events
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// Don't tell the client if its a creative sword break because its not broken!
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- if (this.level.getBlockEntity(pos) == null && !isSwordNoBreak) {
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+ if (false && this.level.getBlockEntity(pos) == null && !isSwordNoBreak) { // Paper - Don't resync block
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ClientboundBlockUpdatePacket packet = new ClientboundBlockUpdatePacket(pos, Blocks.AIR.defaultBlockState());
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this.player.connection.send(packet);
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}
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@@ -382,13 +384,15 @@ public class ServerPlayerGameMode {
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if (isSwordNoBreak) {
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return false;
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}
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+ // Paper start - Don't resync blocks
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// Let the client know the block still exists
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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+ //this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
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// Brute force all possible updates
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- for (Direction dir : Direction.values()) {
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- this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos.relative(dir)));
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- }
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+ //for (Direction dir : Direction.values()) {
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+ // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos.relative(dir)));
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+ //}
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+ // Paper end - Don't resync blocks
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// Update any tile entity data for this block
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if (!captureSentBlockEntities) { // Paper - Send block entities after destroy prediction
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@@ -537,16 +541,18 @@ public class ServerPlayerGameMode {
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if (event.useInteractedBlock() == Event.Result.DENY) {
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// If we denied a door from opening, we need to send a correcting update to the client, as it already opened the door.
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if (iblockdata.getBlock() instanceof DoorBlock) {
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- boolean bottom = iblockdata.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER;
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- player.connection.send(new ClientboundBlockUpdatePacket(world, bottom ? blockposition.above() : blockposition.below()));
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+ // Paper start - Don't resync blocks
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+ // boolean bottom = iblockdata.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER;
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+ // player.connection.send(new ClientboundBlockUpdatePacket(world, bottom ? blockposition.above() : blockposition.below()));
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+ // Paper end - Don't resync blocks
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} else if (iblockdata.getBlock() instanceof CakeBlock) {
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player.getBukkitEntity().sendHealthUpdate(); // SPIGOT-1341 - reset health for cake
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} else if (this.interactItemStack.getItem() instanceof DoubleHighBlockItem) {
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// send a correcting update to the client, as it already placed the upper half of the bisected item
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- player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.relative(hitResult.getDirection()).above()));
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+ //player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.relative(hitResult.getDirection()).above())); // Paper - Don't resync blocks
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// send a correcting update to the client for the block above as well, this because of replaceable blocks (such as grass, sea grass etc)
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- player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.above()));
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+ //player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.above())); // Paper - Don't resync blocks
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// Paper start - extend Player Interact cancellation // TODO: consider merging this into the extracted method
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} else if (iblockdata.is(Blocks.JIGSAW) || iblockdata.is(Blocks.STRUCTURE_BLOCK) || iblockdata.getBlock() instanceof net.minecraft.world.level.block.CommandBlock) {
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player.connection.send(new net.minecraft.network.protocol.game.ClientboundContainerClosePacket(this.player.containerMenu.containerId));
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diff --git a/src/main/java/net/minecraft/world/item/BucketItem.java b/src/main/java/net/minecraft/world/item/BucketItem.java
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index 6caed156ed0cfe0017d578f58cb963ee68272d78..321188173918d0d60858a258400dfd682ccdb21c 100644
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--- a/src/main/java/net/minecraft/world/item/BucketItem.java
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+++ b/src/main/java/net/minecraft/world/item/BucketItem.java
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@@ -79,7 +79,7 @@ public class BucketItem extends Item implements DispensibleContainerItem {
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PlayerBucketFillEvent event = CraftEventFactory.callPlayerBucketFillEvent((ServerLevel) world, user, blockposition, blockposition, movingobjectpositionblock.getDirection(), itemstack, dummyFluid.getItem(), hand);
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if (event.isCancelled()) {
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- ((ServerPlayer) user).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-5163 (see PlayerInteractManager)
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+ // ((ServerPlayer) user).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-5163 (see PlayerInteractManager) // Paper - Don't resend blocks
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((ServerPlayer) user).getBukkitEntity().updateInventory(); // SPIGOT-4541
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return InteractionResultHolder.fail(itemstack);
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}
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@@ -187,7 +187,7 @@ public class BucketItem extends Item implements DispensibleContainerItem {
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if (flag2 && entityhuman != null) {
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PlayerBucketEmptyEvent event = CraftEventFactory.callPlayerBucketEmptyEvent((ServerLevel) world, entityhuman, blockposition, clicked, enumdirection, itemstack, enumhand);
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if (event.isCancelled()) {
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- ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-4238: needed when looking through entity
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+ // ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-4238: needed when looking through entity // Paper - Don't resend blocks
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((ServerPlayer) entityhuman).getBukkitEntity().updateInventory(); // SPIGOT-4541
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return false;
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}
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diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
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index 87cae96faf33fa0491b13add79e02fc225bd2f70..e9a9c89bd6a4ce7cb30c2fcf79a537fc18204aeb 100644
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--- a/src/main/java/net/minecraft/world/item/ItemStack.java
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+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
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@@ -500,10 +500,12 @@ public final class ItemStack implements DataComponentHolder {
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world.preventPoiUpdated = false;
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// Brute force all possible updates
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- BlockPos placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition();
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- for (Direction dir : Direction.values()) {
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- ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, placedPos.relative(dir)));
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- }
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+ // Paper start - Don't resync blocks
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+ // BlockPos placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition();
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+ // for (Direction dir : Direction.values()) {
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+ // ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, placedPos.relative(dir)));
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+ // }
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+ // Paper end - Don't resync blocks
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SignItem.openSign = null; // SPIGOT-6758 - Reset on early return
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} else {
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// Change the stack to its new contents if it hasn't been tampered with.
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