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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.
19 lines
1.2 KiB
Diff
19 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sat, 3 Jul 2021 21:18:28 +0100
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Subject: [PATCH] WorldCreator#keepSpawnLoaded
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 7cc0cd19996df0b37fa0b7c4dc34ee99ad9499cb..b09c1359e4bd5f287b9ce3682fd7d9defa8f7e61 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1324,7 +1324,7 @@ public final class CraftServer implements Server {
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}
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// If set to not keep spawn in memory (changed from default) then adjust rule accordingly
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- if (!creator.keepSpawnInMemory()) {
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+ if (creator.keepSpawnLoaded() == net.kyori.adventure.util.TriState.FALSE) { // Paper
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worlddata.getGameRules().getRule(GameRules.RULE_SPAWN_CHUNK_RADIUS).set(0, null);
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}
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ServerLevel internal = (ServerLevel) new ServerLevel(this.console, this.console.executor, worldSession, worlddata, worldKey, worlddimension, this.getServer().progressListenerFactory.create(worlddata.getGameRules().getInt(GameRules.RULE_SPAWN_CHUNK_RADIUS)),
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