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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.
21 lines
1.2 KiB
Diff
21 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Brokkonaut <hannos17@gmx.de>
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Date: Sat, 18 Dec 2021 08:26:55 +0100
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Subject: [PATCH] Make water animal spawn height configurable
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diff --git a/src/main/java/net/minecraft/world/entity/animal/WaterAnimal.java b/src/main/java/net/minecraft/world/entity/animal/WaterAnimal.java
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index ad86b129ffdb9c6358f451fbcc0ae000eb81141d..c9cabb061ebc9172647304431cc3fb2593dd47ba 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/WaterAnimal.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/WaterAnimal.java
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@@ -67,6 +67,10 @@ public abstract class WaterAnimal extends PathfinderMob {
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) {
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int i = world.getSeaLevel();
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int j = i - 13;
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+ // Paper start - Make water animal spawn height configurable
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+ i = world.getMinecraftWorld().paperConfig().entities.spawning.wateranimalSpawnHeight.maximum.or(i);
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+ j = world.getMinecraftWorld().paperConfig().entities.spawning.wateranimalSpawnHeight.minimum.or(j);
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+ // Paper end - Make water animal spawn height configurable
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return pos.getY() >= j && pos.getY() <= i && world.getFluidState(pos.below()).is(FluidTags.WATER) && world.getBlockState(pos.above()).is(Blocks.WATER);
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}
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}
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