PaperMC/patches/server/0476-Configurable-max-leash-distance.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
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.
2024-09-19 16:36:07 +02:00

32 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 3 Jan 2021 21:04:03 -0800
Subject: [PATCH] Configurable max leash distance
diff --git a/src/main/java/net/minecraft/world/entity/Leashable.java b/src/main/java/net/minecraft/world/entity/Leashable.java
index 1f2d04a456c383815b0c5ef331471593556fd128..5c51dd5229689cba459655d488aee59bd159a414 100644
--- a/src/main/java/net/minecraft/world/entity/Leashable.java
+++ b/src/main/java/net/minecraft/world/entity/Leashable.java
@@ -179,7 +179,7 @@ public interface Leashable {
return;
}
- if ((double) f > 10.0D) {
+ if ((double) f > entity.level().paperConfig().misc.maxLeashDistance.or(LEASH_TOO_FAR_DIST)) { // Paper - Configurable max leash distance
((Leashable) entity).leashTooFarBehaviour();
} else if ((double) f > 6.0D) {
((Leashable) entity).elasticRangeLeashBehaviour(entity1, f);
diff --git a/src/main/java/net/minecraft/world/entity/TamableAnimal.java b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
index f2d311a5450eb684603580bbf7e9e7fc73fc2f5c..bf2c9134c7d9d5926add36b55e3cfea79e8c8243 100644
--- a/src/main/java/net/minecraft/world/entity/TamableAnimal.java
+++ b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
@@ -97,7 +97,7 @@ public abstract class TamableAnimal extends Animal implements OwnableEntity {
@Override
public boolean handleLeashAtDistance(Entity leashHolder, float distance) {
if (this.isInSittingPose()) {
- if (distance > 10.0F) {
+ if (distance > (float) this.level().paperConfig().misc.maxLeashDistance.or(Leashable.LEASH_TOO_FAR_DIST)) { // Paper - Configurable max leash distance
this.dropLeash(true, true);
}