geforkt von Mirrors/Paper
c5a10665b8
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.
31 Zeilen
1.4 KiB
Diff
31 Zeilen
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Josh Roy <joshroy126@gmail.com>
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Date: Mon, 23 Jan 2023 19:19:01 -0500
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Subject: [PATCH] Remove CraftItemStack#setAmount null assignment
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This creates a problem with Paper's item serialization
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api where deserialized items, which are internally
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created as a CraftItemStack, will be completely lost if
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#setAmount(0) is invoked (since the underlying handle
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is set to null), while a regular Bukkit ItemStack
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simply sets the amount field to zero, retaining the
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item's data.
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Vanilla treats items with zero amounts the same as items
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with less than zero amounts, so this code doesn't create
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a problem with operations on the vanilla ItemStack.
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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index 08178a88ba7d0881a6c2843eef24a846cf07adb4..4d29c34e221b749b6972c7ed79ac1f86da999ed7 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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@@ -186,7 +186,7 @@ public final class CraftItemStack extends ItemStack {
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}
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this.handle.setCount(amount);
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- if (amount == 0) {
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+ if (false && amount == 0) { // Paper - remove CraftItemStack#setAmount null assignment
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this.handle = null;
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}
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}
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