Paper/patches/server/1011-Fix-CraftBukkit-drag-system.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tamion <70228790+notTamion@users.noreply.github.com>
Date: Sun, 26 May 2024 22:20:21 +0200
Subject: [PATCH] Fix CraftBukkit drag system
== AT ==
public net.minecraft.world.inventory.AbstractContainerMenu quickcraftSlots
public net.minecraft.world.inventory.AbstractContainerMenu quickcraftStatus
public net.minecraft.world.inventory.AbstractContainerMenu quickcraftType
public net.minecraft.world.inventory.AbstractContainerMenu resetQuickCraft()V
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index bb3d444f7bf2b20a557cd39997f9943c90763432..65ee382684fe2d8dec621ca709880f7349208eae 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3081,6 +3081,25 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
break;
case QUICK_CRAFT:
+ // Paper start - Fix CraftBukkit drag system
+ AbstractContainerMenu containerMenu = this.player.containerMenu;
+ int currentStatus = this.player.containerMenu.quickcraftStatus;
+ int newStatus = AbstractContainerMenu.getQuickcraftHeader(packet.getButtonNum());
+ if ((currentStatus != 1 || newStatus != 2 && currentStatus != newStatus)) {
+ } else if (containerMenu.getCarried().isEmpty()) {
+ } else if (newStatus == 0) {
+ } else if (newStatus == 1) {
+ } else if (newStatus == 2) {
+ if (!this.player.containerMenu.quickcraftSlots.isEmpty()) {
+ if (this.player.containerMenu.quickcraftSlots.size() == 1) {
+ int index = containerMenu.quickcraftSlots.iterator().next().index;
+ containerMenu.resetQuickCraft();
+ this.handleContainerClick(new ServerboundContainerClickPacket(packet.getContainerId(), packet.getStateId(), index, containerMenu.quickcraftType, net.minecraft.world.inventory.ClickType.PICKUP, packet.getCarriedItem(), packet.getChangedSlots()));
+ return;
+ }
+ }
+ }
+ // Paper end - Fix CraftBukkit drag system
this.player.containerMenu.clicked(packet.getSlotNum(), packet.getButtonNum(), packet.getClickType(), this.player);
break;
case PICKUP_ALL:
diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
index 78d0ff45c016e900d87010e8b26b0bb10e63f445..4680f77a275d8d2b226018db89a571ac25998dd8 100644
--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
@@ -468,7 +468,7 @@ public abstract class AbstractContainerMenu {
}
} else if (this.quickcraftStatus == 2) {
if (!this.quickcraftSlots.isEmpty()) {
- if (false && this.quickcraftSlots.size() == 1) { // CraftBukkit - treat everything as a drag since we are unable to easily call InventoryClickEvent instead
+ if (this.quickcraftSlots.size() == 1) { // Paper - Fix CraftBukkit drag system
k = ((Slot) this.quickcraftSlots.iterator().next()).index;
this.resetQuickCraft();
this.doClick(k, this.quickcraftType, ClickType.PICKUP, player);