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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.
33 Zeilen
1.9 KiB
Diff
33 Zeilen
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Paul Sauve <paul@technove.co>
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Date: Thu, 18 Feb 2021 13:13:27 -0600
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Subject: [PATCH] Skip POI finding if stuck in vehicle
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Copyright (C) 2020 Technove LLC
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/AcquirePoi.java b/src/main/java/net/minecraft/world/entity/ai/behavior/AcquirePoi.java
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index 21e50342598f7cd9efa1a39e70bd72d152d98812..e8aa27547e3fa1a42720889c7038d4fb0273e7b5 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/behavior/AcquirePoi.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/AcquirePoi.java
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@@ -57,6 +57,7 @@ public class AcquirePoi {
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return false;
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} else {
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mutableLong.setValue(time + 20L + (long)world.getRandom().nextInt(20));
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+ if (entity.getNavigation().isStuck()) mutableLong.add(200); // Paper - Perf: Wait an additional 10s to check again if they're stuck
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PoiManager poiManager = world.getPoiManager();
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long2ObjectMap.long2ObjectEntrySet().removeIf(entry -> !entry.getValue().isStillValid(time));
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Predicate<BlockPos> predicate2 = pos -> {
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