Paper/patches/server/0599-Do-not-run-close-logic-for-inventories-on-chunk-unlo.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 11 Mar 2021 03:03:32 -0800
Subject: [PATCH] Do not run close logic for inventories on chunk unload

Still call the event and change the active container though. We
want to avoid close logic because it's possible to load the
chunk through it. This should also be OK from a leak prevention/
state desync POV because the TE is getting unloaded anyways.

diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 778d3f3ea2247be5bd6edd382b872f6de5bc359c..de154106419d57a6b6c410fedc29cec1dbe532de 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1274,9 +1274,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
         // Spigot Start
         for (net.minecraft.world.level.block.entity.BlockEntity tileentity : chunk.getBlockEntities().values()) {
             if (tileentity instanceof net.minecraft.world.Container) {
+                // Paper start - this area looks like it can load chunks, change the behavior
+                // chests for example can apply physics to the world
+                // so instead we just change the active container and call the event
                 for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((net.minecraft.world.Container) tileentity).getViewers())) {
-                    h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper - Inventory close reason
+                    ((org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper - Inventory close reason
                 }
+                // Paper end - this area looks like it can load chunks, change the behavior
             }
         }
         // Spigot End
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 882dae91f9db702edd233f7cab9f95e9874d1270..cf765213001c3c642477658b7aac0916e64ad5e4 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1715,6 +1715,18 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
         this.connection.send(new ClientboundContainerClosePacket(this.containerMenu.containerId));
         this.doCloseContainer();
     }
+    // Paper start - special close for unloaded inventory
+    @Override
+    public void closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        // copied from above
+        CraftEventFactory.handleInventoryCloseEvent(this, reason); // CraftBukkit
+        // Paper end
+        // copied from below
+        this.connection.send(new ClientboundContainerClosePacket(this.containerMenu.containerId));
+        this.containerMenu = this.inventoryMenu;
+        // do not run close logic
+    }
+    // Paper end - special close for unloaded inventory
 
     @Override
     public void doCloseContainer() {
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index e772b6a501b225f13399365ad743cabe5f6f792e..fab56040ecf496e74f583ec5d6c6c9861cfa4e13 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -510,6 +510,11 @@ public abstract class Player extends LivingEntity {
         this.containerMenu = this.inventoryMenu;
     }
     // Paper end - Inventory close reason
+    // Paper start - special close for unloaded inventory
+    public void closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        this.containerMenu = this.inventoryMenu;
+    }
+    // Paper end - special close for unloaded inventory
 
     public void closeContainer() {
         this.containerMenu = this.inventoryMenu;