papermc/patches/server/0931-Properly-cancel-usable-items.patch
2024-01-18 22:00:40 +01:00

63 lines
4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Tue, 23 May 2023 22:33:36 -0400
Subject: [PATCH] Properly cancel usable items
This fixes the bug causing cancelling PlayerInteractEvent to cause items to continue to be used despite being cancelled on the server.
For example, items being consumed but never finishing, shields being put up, etc.
The underlying issue of this is that the client modifies their synced data values, and so we have to (forcibly) resend
them in order for the client to reset their using item state.
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index a4058e8ce468ef515236813b034f1a08d5d9589f..0357e190f6cc0724223ed705b19651d865bf853b 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -557,6 +557,7 @@ public class ServerPlayerGameMode {
}
// Paper end - extend Player Interact cancellation
player.getBukkitEntity().updateInventory(); // SPIGOT-2867
+ this.player.resyncUsingItem(this.player); // Paper - Properly cancel usable items
enuminteractionresult = (event.useItemInHand() != Event.Result.ALLOW) ? InteractionResult.SUCCESS : InteractionResult.PASS;
} else if (this.gameModeForPlayer == GameType.SPECTATOR) {
MenuProvider itileinventory = iblockdata.getMenuProvider(world, blockposition);
@@ -600,6 +601,11 @@ public class ServerPlayerGameMode {
return enuminteractionresult1;
}
+ // Paper start - Properly cancel usable items; Cancel only if cancelled + if the interact result is different from default response
+ else if (this.interactResult && this.interactResult != cancelledItem) {
+ this.player.resyncUsingItem(this.player);
+ }
+ // Paper end - Properly cancel usable items
}
return enuminteractionresult;
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 294dd52de7b0b19b19bbef9bb6ec6b5b2845cdeb..ac41dc96a4aee7b0bb71cbf71d3109ff05a66eff 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1955,6 +1955,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
if (cancelled) {
+ this.player.resyncUsingItem(this.player); // Paper - Properly cancel usable items
this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524
return;
}
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index b99c7e77948f2a341dd924f65bf952f8695591b4..5f0d7448bca32a80d4488a4e9ad87918fedf356c 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3814,6 +3814,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
return ((Byte) this.entityData.get(LivingEntity.DATA_LIVING_ENTITY_FLAGS) & 2) > 0 ? InteractionHand.OFF_HAND : InteractionHand.MAIN_HAND;
}
+ // Paper start - Properly cancel usable items
+ public void resyncUsingItem(ServerPlayer serverPlayer) {
+ this.getEntityData().resendPossiblyDesyncedDataValues(java.util.List.of(DATA_LIVING_ENTITY_FLAGS), serverPlayer);
+ }
+ // Paper end - Properly cancel usable items
private void updatingUsingItem() {
if (this.isUsingItem()) {
if (ItemStack.isSameItem(this.getItemInHand(this.getUsedItemHand()), this.useItem)) {