From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com> Date: Tue, 27 Jun 2023 21:09:11 -0400 Subject: [PATCH] Dont resend blocks on interactions In general, the client now has an acknowledgment system which will prevent block changes made by the client to be reverted correctly. It should be noted that this system does not yet support block entities, so those still need to resynced when needed. diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java index cef3a64b5e6c4d34ed079078420078a7adfcd574..3dff328c5e4456aae291a8dec82766681f49af06 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java @@ -202,7 +202,7 @@ public class ServerPlayerGameMode { PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_BLOCK, pos, direction, this.player.getInventory().getSelected(), InteractionHand.MAIN_HAND); if (event.isCancelled()) { // Let the client know the block still exists - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync blocks // Update any tile entity data for this block capturedBlockEntity = true; // Paper - Send block entities after destroy prediction return; @@ -217,7 +217,7 @@ public class ServerPlayerGameMode { // Spigot start - handle debug stick left click for non-creative if (this.player.getMainHandItem().is(net.minecraft.world.item.Items.DEBUG_STICK) && ((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())) { - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync block return; } // Spigot end @@ -235,15 +235,17 @@ public class ServerPlayerGameMode { // CraftBukkit start - Swings at air do *NOT* exist. if (event.useInteractedBlock() == Event.Result.DENY) { // If we denied a door from opening, we need to send a correcting update to the client, as it already opened the door. - BlockState data = this.level.getBlockState(pos); - if (data.getBlock() instanceof DoorBlock) { - // For some reason *BOTH* the bottom/top part have to be marked updated. - boolean bottom = data.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER; - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, bottom ? pos.above() : pos.below())); - } else if (data.getBlock() instanceof TrapDoorBlock) { - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); - } + // Paper start - Don't resync blocks + //BlockState data = this.level.getBlockState(pos); + //if (data.getBlock() instanceof DoorBlock) { + // // For some reason *BOTH* the bottom/top part have to be marked updated. + // boolean bottom = data.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER; + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, bottom ? pos.above() : pos.below())); + //} else if (data.getBlock() instanceof TrapDoorBlock) { + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + //} + // Paper end - Don't resync blocks } else if (!iblockdata.isAir()) { iblockdata.attack(this.level, pos, this.player); f = iblockdata.getDestroyProgress(this.player, this.player.level(), pos); @@ -252,7 +254,7 @@ public class ServerPlayerGameMode { if (event.useItemInHand() == Event.Result.DENY) { // If we 'insta destroyed' then the client needs to be informed. if (f > 1.0f) { - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync blocks } return; } @@ -260,7 +262,7 @@ public class ServerPlayerGameMode { if (blockEvent.isCancelled()) { // Let the client know the block still exists - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Paper - Don't resync block return; } @@ -351,7 +353,7 @@ public class ServerPlayerGameMode { // Tell client the block is gone immediately then process events // Don't tell the client if its a creative sword break because its not broken! - if (this.level.getBlockEntity(pos) == null && !isSwordNoBreak) { + if (false && this.level.getBlockEntity(pos) == null && !isSwordNoBreak) { // Paper - Don't resync block ClientboundBlockUpdatePacket packet = new ClientboundBlockUpdatePacket(pos, Blocks.AIR.defaultBlockState()); this.player.connection.send(packet); } @@ -377,13 +379,15 @@ public class ServerPlayerGameMode { if (isSwordNoBreak) { return false; } + // Paper start - Don't resync blocks // Let the client know the block still exists - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); + //this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos)); // Brute force all possible updates - for (Direction dir : Direction.values()) { - this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos.relative(dir))); - } + //for (Direction dir : Direction.values()) { + // this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos.relative(dir))); + //} + // Paper end - Don't resync blocks // Update any tile entity data for this block if (!captureSentBlockEntities) { // Paper - Send block entities after destroy prediction @@ -532,16 +536,18 @@ public class ServerPlayerGameMode { if (event.useInteractedBlock() == Event.Result.DENY) { // If we denied a door from opening, we need to send a correcting update to the client, as it already opened the door. if (iblockdata.getBlock() instanceof DoorBlock) { - boolean bottom = iblockdata.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER; - player.connection.send(new ClientboundBlockUpdatePacket(world, bottom ? blockposition.above() : blockposition.below())); + // Paper start - Don't resync blocks + // boolean bottom = iblockdata.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER; + // player.connection.send(new ClientboundBlockUpdatePacket(world, bottom ? blockposition.above() : blockposition.below())); + // Paper end - Don't resync blocks } else if (iblockdata.getBlock() instanceof CakeBlock) { player.getBukkitEntity().sendHealthUpdate(); // SPIGOT-1341 - reset health for cake } else if (this.interactItemStack.getItem() instanceof DoubleHighBlockItem) { // send a correcting update to the client, as it already placed the upper half of the bisected item - player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.relative(hitResult.getDirection()).above())); + //player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.relative(hitResult.getDirection()).above())); // Paper - Don't resync blocks // send a correcting update to the client for the block above as well, this because of replaceable blocks (such as grass, sea grass etc) - player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.above())); + //player.connection.send(new ClientboundBlockUpdatePacket(world, blockposition.above())); // Paper - Don't resync blocks // Paper start - extend Player Interact cancellation // TODO: consider merging this into the extracted method } else if (iblockdata.is(Blocks.STRUCTURE_BLOCK) || iblockdata.getBlock() instanceof net.minecraft.world.level.block.CommandBlock) { player.connection.send(new net.minecraft.network.protocol.game.ClientboundContainerClosePacket(this.player.containerMenu.containerId)); diff --git a/src/main/java/net/minecraft/world/item/BucketItem.java b/src/main/java/net/minecraft/world/item/BucketItem.java index 6d494b80ae002aea00afa44adf83dad1ae5bbbc1..49557d6f22c5725c663a231deab019d4f6fe95fa 100644 --- a/src/main/java/net/minecraft/world/item/BucketItem.java +++ b/src/main/java/net/minecraft/world/item/BucketItem.java @@ -78,7 +78,7 @@ public class BucketItem extends Item implements DispensibleContainerItem { PlayerBucketFillEvent event = CraftEventFactory.callPlayerBucketFillEvent((ServerLevel) world, user, blockposition, blockposition, movingobjectpositionblock.getDirection(), itemstack, dummyFluid.getItem(), hand); if (event.isCancelled()) { - ((ServerPlayer) user).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-5163 (see PlayerInteractManager) + // ((ServerPlayer) user).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-5163 (see PlayerInteractManager) // Paper - Don't resend blocks ((ServerPlayer) user).getBukkitEntity().updateInventory(); // SPIGOT-4541 return InteractionResultHolder.fail(itemstack); } @@ -185,7 +185,7 @@ public class BucketItem extends Item implements DispensibleContainerItem { if (flag2 && entityhuman != null) { PlayerBucketEmptyEvent event = CraftEventFactory.callPlayerBucketEmptyEvent((ServerLevel) world, entityhuman, blockposition, clicked, enumdirection, itemstack, enumhand); if (event.isCancelled()) { - ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-4238: needed when looking through entity + // ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, blockposition)); // SPIGOT-4238: needed when looking through entity // Paper - Don't resend blocks ((ServerPlayer) entityhuman).getBukkitEntity().updateInventory(); // SPIGOT-4541 return false; } diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java index f309bd640dfac68b9a1cf59bb52d315285b91c2c..3e9caee7322d7ffdb93fd7d063675dddc4c71226 100644 --- a/src/main/java/net/minecraft/world/item/ItemStack.java +++ b/src/main/java/net/minecraft/world/item/ItemStack.java @@ -479,10 +479,12 @@ public final class ItemStack implements DataComponentHolder { world.preventPoiUpdated = false; // Brute force all possible updates - BlockPos placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition(); - for (Direction dir : Direction.values()) { - ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, placedPos.relative(dir))); - } + // Paper start - Don't resync blocks + // BlockPos placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition(); + // for (Direction dir : Direction.values()) { + // ((ServerPlayer) entityhuman).connection.send(new ClientboundBlockUpdatePacket(world, placedPos.relative(dir))); + // } + // Paper end - Don't resync blocks SignItem.openSign = null; // SPIGOT-6758 - Reset on early return } else { // Change the stack to its new contents if it hasn't been tampered with.