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geforkt von Mirrors/Paper
Paper/patches/server/1022-Fix-NPE-for-Jukebox-setRecord.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

21 Zeilen
1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Mon, 17 Jun 2024 17:41:09 -0700
Subject: [PATCH] Fix NPE for Jukebox#setRecord
Fallback to the global registry if no level exists
diff --git a/src/main/java/net/minecraft/world/level/block/entity/JukeboxBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/JukeboxBlockEntity.java
index 1497e76b548ad76b5aaa297bdd35723e6a8f1f8d..c5069730b25e6f0dfb4e5db3271c91116b485f58 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/JukeboxBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/JukeboxBlockEntity.java
@@ -200,7 +200,7 @@ public class JukeboxBlockEntity extends BlockEntity implements Clearable, Contai
public void setSongItemWithoutPlaying(ItemStack itemstack, long ticksSinceSongStarted) { // CraftBukkit - add argument
this.item = itemstack;
this.jukeboxSongPlayer.song = null; // CraftBukkit - reset
- JukeboxSong.fromStack(this.level.registryAccess(), itemstack).ifPresent((holder) -> {
+ JukeboxSong.fromStack(this.level != null ? this.level.registryAccess() : org.bukkit.craftbukkit.CraftRegistry.getMinecraftRegistry(), itemstack).ifPresent((holder) -> { // Paper - fallback to other RegistyrAccess if no level
this.jukeboxSongPlayer.setSongWithoutPlaying(holder, ticksSinceSongStarted); // CraftBukkit - add argument
});
// CraftBukkit start - add null check for level