PaperMC/patches/server/0571-Make-hoppers-respect-inventory-max-stack-size.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

30 lines
1.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 7 Jul 2021 16:30:17 -0700
Subject: [PATCH] Make hoppers respect inventory max stack size
diff --git a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
index 1c8a08e317591413426285874de74f4de54efa07..542a5501ac94f57810d34e0f769a9a7855604f91 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
@@ -495,15 +495,17 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
if (itemstack1.isEmpty()) {
// Spigot start - SPIGOT-6693, InventorySubcontainer#setItem
+ ItemStack leftover = ItemStack.EMPTY; // Paper - Make hoppers respect inventory max stack size
if (!stack.isEmpty() && stack.getCount() > to.getMaxStackSize()) {
+ leftover = stack; // Paper - Make hoppers respect inventory max stack size
stack = stack.split(to.getMaxStackSize());
}
// Spigot end
to.setItem(slot, stack);
- stack = ItemStack.EMPTY;
+ stack = leftover; // Paper - Make hoppers respect inventory max stack size
flag = true;
} else if (HopperBlockEntity.canMergeItems(itemstack1, stack)) {
- int j = stack.getMaxStackSize() - itemstack1.getCount();
+ int j = Math.min(stack.getMaxStackSize(), to.getMaxStackSize()) - itemstack1.getCount(); // Paper - Make hoppers respect inventory max stack size
int k = Math.min(stack.getCount(), j);
stack.shrink(k);