Paper/patches/server/0738-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 2b3c54737a203401c6f03bba9c9d969e95102298..3748dae9bbb80e70bb9a0547868e02d91d9c85c6 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1303,9 +1303,13 @@ 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
+                    ((org.bukkit.craftbukkit.entity.CraftHumanEntity)h).getHandle().closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
                 }
+                // Paper end
             }
         }
         // 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 ea724b1781ea256c991fe47aa044183e20ae4d82..5270a8b1ee2cc426b8e0b5d34db4d81843fb4230 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1577,6 +1577,18 @@ public class ServerPlayer extends 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
 
     public void doCloseContainer() {
         this.containerMenu.removed(this);
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 b6f8e94df86c174569ccbc69cfd031cc08271dd3..4e6364bea8f464bef690b8cc8f25a80ee699ed5a 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -496,6 +496,11 @@ public abstract class Player extends LivingEntity {
         this.containerMenu = this.inventoryMenu;
     }
     // Paper end
+    // 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;