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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.
20 Zeilen
1.1 KiB
Diff
20 Zeilen
1.1 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: Tue, 7 Sep 2021 21:29:38 +0100
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Subject: [PATCH] Fix CocaoDecorator causing a crash when trying to generate
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without logs
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diff --git a/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java b/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
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index 1b59f530840a2a490e295f73db90ab266b27712f..f924f09aaf5d8fd643f86d826ab053dbe861369e 100644
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--- a/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
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+++ b/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
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@@ -26,6 +26,7 @@ public class CocoaDecorator extends TreeDecorator {
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@Override
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public void place(TreeDecorator.Context generator) {
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+ if (generator.logs().isEmpty()) return; // Paper - Fix crash when trying to generate without logs
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RandomSource randomSource = generator.random();
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if (!(randomSource.nextFloat() >= this.probability)) {
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List<BlockPos> list = generator.logs();
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