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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0556-Fix-PlayerDropItemEvent-using-wrong-item.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

62 Zeilen
3.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sun, 20 Jun 2021 21:55:59 -0700
Subject: [PATCH] Fix PlayerDropItemEvent using wrong item
diff --git a/src/main/java/net/minecraft/server/commands/GiveCommand.java b/src/main/java/net/minecraft/server/commands/GiveCommand.java
index c81fd3e1108fb0a02f9240263404af2b968c8494..0d9de4c61c7b26a6ff37c12fde629161fd0c3d5a 100644
--- a/src/main/java/net/minecraft/server/commands/GiveCommand.java
+++ b/src/main/java/net/minecraft/server/commands/GiveCommand.java
@@ -38,6 +38,7 @@ public class GiveCommand {
private static int giveItem(CommandSourceStack source, ItemInput item, Collection<ServerPlayer> targets, int count) throws CommandSyntaxException {
ItemStack itemstack = item.createItemStack(1, false);
+ final Component displayName = itemstack.getDisplayName(); // Paper - get display name early
int j = itemstack.getMaxStackSize();
int k = j * 100;
@@ -79,11 +80,11 @@ public class GiveCommand {
if (targets.size() == 1) {
source.sendSuccess(() -> {
- return Component.translatable("commands.give.success.single", count, itemstack.getDisplayName(), ((ServerPlayer) targets.iterator().next()).getDisplayName());
+ return Component.translatable("commands.give.success.single", count, displayName, ((ServerPlayer) targets.iterator().next()).getDisplayName()); // Paper - use cached display name
}, true);
} else {
source.sendSuccess(() -> {
- return Component.translatable("commands.give.success.single", count, itemstack.getDisplayName(), targets.size());
+ return Component.translatable("commands.give.success.single", count, displayName, targets.size()); // Paper - use cached display name
}, true);
}
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 42df8d45ceb963043cf6467b8fc47272ce0873da..f20019261a09f425137731f7a4b92e889b617334 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -2486,7 +2486,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
if (flag1) {
if (!itemstack1.isEmpty()) {
- this.awardStat(Stats.ITEM_DROPPED.get(itemstack1.getItem()), itemstack.getCount());
+ this.awardStat(Stats.ITEM_DROPPED.get(itemstack1.getItem()), itemstack1.getCount()); // Paper - Fix PlayerDropItemEvent using wrong item
}
this.awardStat(Stats.DROP);
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index b444b24a92bd2209ee4104ae82c7cfa9c876c910..7fee6ffeb8ccde965fcc1454eb0d8c6b3637da41 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -745,6 +745,11 @@ public abstract class Player extends LivingEntity {
}
double d0 = this.getEyeY() - 0.30000001192092896D;
+ // Paper start
+ ItemStack tmp = itemstack.copy();
+ itemstack.setCount(0);
+ itemstack = tmp;
+ // Paper end
ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), d0, this.getZ(), itemstack);
entityitem.setPickUpDelay(40);