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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.
26 lines
1.8 KiB
Diff
26 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Newwind <support@newwindserver.com>
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Date: Thu, 25 Jul 2024 13:00:37 +0200
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Subject: [PATCH] Make interaction leniency distance configurable
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The server validates incoming interaction packets by ensuring the player
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sending them is inside their interaction range. For this, the server adds
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a magic value, by default 1.0, to the original interaction range to
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account for latency issues.
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This value however may be too low in high latency environments.
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The patch exposes a new configuration option to configure said value.
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index 4c04eb531b6989f7e618d201ecaa84298eab52c4..62d5ca25104e10ca16c2005ef9272bf8329ce145 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -2702,7 +2702,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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AABB axisalignedbb = entity.getBoundingBox();
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- if (this.player.canInteractWithEntity(axisalignedbb, 1.0D)) {
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+ if (this.player.canInteractWithEntity(axisalignedbb, io.papermc.paper.configuration.GlobalConfiguration.get().misc.clientInteractionLeniencyDistance.or(1.0D))) { // Paper - configurable lenience value for interact range
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packet.dispatch(new ServerboundInteractPacket.Handler() {
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private void performInteraction(InteractionHand enumhand, ServerGamePacketListenerImpl.EntityInteraction playerconnection_a, PlayerInteractEntityEvent event) { // CraftBukkit
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ItemStack itemstack = ServerGamePacketListenerImpl.this.player.getItemInHand(enumhand);
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