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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.
22 Zeilen
1.1 KiB
Diff
22 Zeilen
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: ossi <oser0002@gmail.com>
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Date: Fri, 12 Jun 2020 01:38:06 +0300
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Subject: [PATCH] Fix CraftScheduler#runTaskTimerAsynchronously(Plugin,
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Consumer<BukkitTask>, long, long) scheduling a non-repeating task instead of
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a repeating one.
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diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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index 02835e4f0a0b262af27acff0939c981cae728db4..d7c2d8993a172e343669228cf24a58d8992a1c10 100644
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--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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@@ -197,7 +197,7 @@ public class CraftScheduler implements BukkitScheduler {
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@Override
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public void runTaskTimerAsynchronously(Plugin plugin, Consumer<? super BukkitTask> task, long delay, long period) throws IllegalArgumentException {
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- this.runTaskTimerAsynchronously(plugin, (Object) task, delay, CraftTask.NO_REPEATING);
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+ this.runTaskTimerAsynchronously(plugin, (Object) task, delay, period); // Paper
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}
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@Override
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