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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.
19 Zeilen
1.1 KiB
Diff
19 Zeilen
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: William Blake Galbreath <Blake.Galbreath@GMail.com>
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Date: Sun, 5 Jan 2020 17:24:34 -0600
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Subject: [PATCH] Prevent bees loading chunks checking hive position
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Bee.java b/src/main/java/net/minecraft/world/entity/animal/Bee.java
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index 048d03c8ef3ef865641b2276477cf84e8d4397a1..58536ee8707c5ad0625cae2f26a58cf03b3f85d7 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Bee.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Bee.java
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@@ -510,6 +510,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
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} else if (this.isTooFarAway(this.hivePos)) {
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return false;
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} else {
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+ if (this.level().getChunkIfLoadedImmediately(this.hivePos.getX() >> 4, this.hivePos.getZ() >> 4) == null) return true; // Paper - just assume the hive is still there, no need to load the chunk(s)
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BlockEntity tileentity = this.level().getBlockEntity(this.hivePos);
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return tileentity != null && tileentity.getType() == BlockEntityType.BEEHIVE;
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