PaperMC/patches/server/0974-Deprecate-InvAction-HOTBAR_MOVE_AND_READD.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

26 lines
2.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 25 May 2024 09:51:13 -0700
Subject: [PATCH] Deprecate InvAction#HOTBAR_MOVE_AND_READD
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 0fe4c3ff5dd855aea58292c16ba9a2f5d23c00f5..0034483685ba626e5883b857de96ffd36e57e150 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2997,14 +2997,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
Slot clickedSlot = this.player.containerMenu.getSlot(packet.getSlotNum());
if (clickedSlot.mayPickup(this.player)) {
ItemStack hotbar = this.player.getInventory().getItem(packet.getButtonNum());
- boolean canCleanSwap = hotbar.isEmpty() || (clickedSlot.container == this.player.getInventory() && clickedSlot.mayPlace(hotbar)); // the slot will accept the hotbar item
- if (clickedSlot.hasItem()) {
- if (canCleanSwap) {
- action = InventoryAction.HOTBAR_SWAP;
- } else {
- action = InventoryAction.HOTBAR_MOVE_AND_READD;
- }
- } else if (!clickedSlot.hasItem() && !hotbar.isEmpty() && clickedSlot.mayPlace(hotbar)) {
+ if ((!hotbar.isEmpty() && clickedSlot.mayPlace(hotbar)) || (hotbar.isEmpty() && clickedSlot.hasItem())) { // Paper - modernify this logic (no such thing as a "hotbar move and readd"
action = InventoryAction.HOTBAR_SWAP;
} else {
action = InventoryAction.NOTHING;