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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0947-Item-Mutation-Fixes.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

39 Zeilen
2.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Wed, 20 Mar 2024 20:41:35 -0400
Subject: [PATCH] Item Mutation Fixes
diff --git a/src/main/java/net/minecraft/world/inventory/EnchantmentMenu.java b/src/main/java/net/minecraft/world/inventory/EnchantmentMenu.java
index fff1c39920e7d7051dfe3dd39c77865d3bdf113e..1ef014b29645ed09ccffb898f1819428c3dc6259 100644
--- a/src/main/java/net/minecraft/world/inventory/EnchantmentMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/EnchantmentMenu.java
@@ -232,7 +232,7 @@ public class EnchantmentMenu extends AbstractContainerMenu {
return false;
} else if (this.costs[id] > 0 && !itemstack.isEmpty() && (player.experienceLevel >= j && player.experienceLevel >= this.costs[id] || player.getAbilities().instabuild)) {
this.access.execute((world, blockposition) -> {
- ItemStack itemstack2 = itemstack;
+ ItemStack itemstack2 = itemstack; // Paper - diff on change
List<EnchantmentInstance> list = this.getEnchantmentList(world.registryAccess(), itemstack, id, this.costs[id]);
// CraftBukkit start
@@ -255,10 +255,16 @@ public class EnchantmentMenu extends AbstractContainerMenu {
return;
}
// CraftBukkit end
- if (itemstack.is(Items.BOOK)) {
- itemstack2 = itemstack.transmuteCopy(Items.ENCHANTED_BOOK);
+ // Paper start
+ itemstack2 = org.bukkit.craftbukkit.inventory.CraftItemStack.getOrCloneOnMutation(item, event.getItem());
+ if (itemstack2 != itemstack) {
this.enchantSlots.setItem(0, itemstack2);
}
+ if (itemstack2.is(Items.BOOK)) {
+ itemstack2 = itemstack2.transmuteCopy(Items.ENCHANTED_BOOK);
+ this.enchantSlots.setItem(0, itemstack2);
+ }
+ // Paper end
// CraftBukkit start
for (Map.Entry<org.bukkit.enchantments.Enchantment, Integer> entry : event.getEnchantsToAdd().entrySet()) {