PaperMC/patches/server/0449-Fix-client-lag-on-advancement-loading.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sat, 31 Oct 2020 11:49:01 -0700
Subject: [PATCH] Fix client lag on advancement loading
When new advancements are added via the UnsafeValues#loadAdvancement
API, it triggers a full datapack reload when this is not necessary. The
advancement is already loaded directly into the advancement registry,
and the point of saving the advancement to the Bukkit datapack seems to
be for persistence. By removing the call to reload datapacks when an
advancement is loaded, the client no longer completely freezes up when
adding a new advancement.
To ensure the client still receives the updated advancement data, we
manually reload the advancement data for all players, which
normally takes place as a part of the datapack reloading.
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 2bc3d9c02256269845d140764b7b1b201e38b569..14d094d9af9b76277859901db908b8a36b24986b 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -334,7 +334,13 @@ public final class CraftMagicNumbers implements UnsafeValues {
Bukkit.getLogger().log(Level.SEVERE, "Error saving advancement " + key, ex);
}
- MinecraftServer.getServer().getPlayerList().reloadResources();
+ // Paper start - Fix client lag on advancement loading
+ //MinecraftServer.getServer().getPlayerList().reload();
+ MinecraftServer.getServer().getPlayerList().getPlayers().forEach(player -> {
+ player.getAdvancements().reload(MinecraftServer.getServer().getAdvancements());
+ player.getAdvancements().flushDirty(player);
+ });
+ // Paper end - Fix client lag on advancement loading
return bukkit;
}