PaperMC/patches/server/0842-Add-whitelist-events.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

34 lines
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: SageSphinx63920 <sage@sagesphinx63920.dev>
Date: Sun, 14 May 2023 12:57:15 +0200
Subject: [PATCH] Add whitelist events
diff --git a/src/main/java/net/minecraft/server/players/UserWhiteList.java b/src/main/java/net/minecraft/server/players/UserWhiteList.java
index 3226a3b69453fb5e13003e941ccbc2d941e047b0..aaa3d5769e0e184e19d01109a76a65be634f830d 100644
--- a/src/main/java/net/minecraft/server/players/UserWhiteList.java
+++ b/src/main/java/net/minecraft/server/players/UserWhiteList.java
@@ -28,4 +28,23 @@ public class UserWhiteList extends StoredUserList<GameProfile, UserWhiteListEntr
protected String getKeyForUser(GameProfile gameProfile) {
return gameProfile.getId().toString();
}
+ // Paper start - Add whitelist events
+ @Override
+ public void add(UserWhiteListEntry entry) {
+ if (!new io.papermc.paper.event.server.WhitelistStateUpdateEvent(com.destroystokyo.paper.profile.CraftPlayerProfile.asBukkitCopy(entry.getUser()), io.papermc.paper.event.server.WhitelistStateUpdateEvent.WhitelistStatus.ADDED).callEvent()) {
+ return;
+ }
+
+ super.add(entry);
+ }
+
+ @Override
+ public void remove(GameProfile profile) {
+ if (!new io.papermc.paper.event.server.WhitelistStateUpdateEvent(com.destroystokyo.paper.profile.CraftPlayerProfile.asBukkitCopy(profile), io.papermc.paper.event.server.WhitelistStateUpdateEvent.WhitelistStatus.REMOVED).callEvent()) {
+ return;
+ }
+
+ super.remove(profile);
+ }
+ // Paper end - Add whitelist events
}