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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 lines
1.1 KiB
Diff
23 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Sun, 11 Jul 2021 12:52:56 -0700
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Subject: [PATCH] fix various menus with empty level accesses
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diff --git a/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java b/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
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index c96b04f045dda384cdee9254a1765ef97e5f7f03..85e336637db8643fc5aca1dba724c9b341cbf46f 100644
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--- a/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
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+++ b/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
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@@ -27,6 +27,12 @@ public interface ContainerLevelAccess {
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public <T> Optional<T> evaluate(BiFunction<Level, BlockPos, T> getter) {
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return Optional.empty();
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}
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+ // Paper start - fix menus with empty level accesses
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+ @Override
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+ public org.bukkit.Location getLocation() {
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+ return null;
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+ }
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+ // Paper end - fix menus with empty level accesses
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};
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static ContainerLevelAccess create(final Level world, final BlockPos pos) {
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