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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.
23 Zeilen
1.2 KiB
Diff
23 Zeilen
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, 9 Jan 2021 14:17:07 +0100
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Subject: [PATCH] Remove stale POIs
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index c60967b7833a23cff0305219b02b308d92448109..373560fc82e491e6c8b755fecfe78d49a2fc3e2f 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -1741,6 +1741,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
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});
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optional1.ifPresent((holder) -> {
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this.getServer().execute(() -> {
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+ // Paper start - Remove stale POIs
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+ if (optional.isEmpty() && this.getPoiManager().exists(blockposition1, poiType -> true)) {
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+ this.getPoiManager().remove(blockposition1);
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+ }
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+ // Paper end - Remove stale POIs
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this.getPoiManager().add(blockposition1, holder);
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DebugPackets.sendPoiAddedPacket(this, blockposition1);
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});
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