Paper/patches/server/0419-Villager-resetOffers.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

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1.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Mon, 7 Oct 2019 00:15:37 -0500
Subject: [PATCH] Villager#resetOffers
diff --git a/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java b/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
index 89e14bb2662fe03b4661aaa54fd65af41b1d438b..fcb3b66617150ad503bffe65de4900b1e3af8764 100644
--- a/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/AbstractVillager.java
@@ -114,6 +114,13 @@ public abstract class AbstractVillager extends AgeableMob implements InventoryCa
return this.tradingPlayer != null;
}
+ // Paper start - Villager#resetOffers
+ public void resetOffers() {
+ this.offers = new MerchantOffers();
+ this.updateTrades();
+ }
+ // Paper end - Villager#resetOffers
+
@Override
public MerchantOffers getOffers() {
if (this.level().isClientSide) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractVillager.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractVillager.java
index e5f733a765068b5640e811abf9fda945a9e91c7c..3199f04d00836a0a51547c679f3f3c80d00da502 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractVillager.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractVillager.java
@@ -34,4 +34,11 @@ public class CraftAbstractVillager extends CraftAgeable implements CraftMerchant
public Inventory getInventory() {
return new CraftInventory(this.getHandle().getInventory());
}
+
+ // Paper start - Villager#resetOffers
+ @Override
+ public void resetOffers() {
+ getHandle().resetOffers();
+ }
+ // Paper end - Villager#resetOffers
}