Fix close request desyncs with inventories of the same type, and

- Small object optimization in DoubleChestInventoryTranslator
- Sending inventory ID of 0 for inventory translation is valid

connector/src/main/java/org/geysermc/connector/network/translators/inventory/translators/chest/DoubleChestInventoryTranslator.java

@@ -25,7 +25,6 @@
 
 package org.geysermc.connector.network.translators.inventory.translators.chest;
 
-import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position;
 import com.nukkitx.math.vector.Vector3i;
 import com.nukkitx.nbt.NbtMap;
 import com.nukkitx.nbt.NbtMapBuilder;
@@ -152,8 +151,7 @@ public class DoubleChestInventoryTranslator extends ChestInventoryTranslator {
         }
 
         Vector3i holderPos = inventory.getHolderPosition();
-        Position pos = new Position(holderPos.getX(), holderPos.getY(), holderPos.getZ());
-        int realBlock = session.getConnector().getWorldManager().getBlockAt(session, pos.getX(), pos.getY(), pos.getZ());
+        int realBlock = session.getConnector().getWorldManager().getBlockAt(session, holderPos);
         UpdateBlockPacket blockPacket = new UpdateBlockPacket();
         blockPacket.setDataLayer(0);
         blockPacket.setBlockPosition(holderPos);
@@ -161,8 +159,7 @@ public class DoubleChestInventoryTranslator extends ChestInventoryTranslator {
         session.sendUpstreamPacket(blockPacket);
 
         holderPos = holderPos.add(Vector3i.UNIT_X);
-        pos = new Position(holderPos.getX(), holderPos.getY(), holderPos.getZ());
-        realBlock = session.getConnector().getWorldManager().getBlockAt(session, pos.getX(), pos.getY(), pos.getZ());
+        realBlock = session.getConnector().getWorldManager().getBlockAt(session, holderPos);
         blockPacket = new UpdateBlockPacket();
         blockPacket.setDataLayer(0);
         blockPacket.setBlockPosition(holderPos);

connector/src/main/java/org/geysermc/connector/network/translators/java/window/JavaOpenWindowTranslator.java

@@ -63,9 +63,12 @@ public class JavaOpenWindowTranslator extends PacketTranslator<ServerOpenWindowP
 
             Inventory newInventory = newTranslator.createInventory(name, packet.getWindowId(), packet.getType(), session.getPlayerInventory());
             if (openInventory != null) {
-                // Sometimes the server can double-open an inventory with the same ID - don't confirm in that instance.
-                // If the window type is the same, don't confirm; in rare cases, inventories can do funny things where it keeps the same window type up but change the contents.
-                InventoryUtils.closeInventory(session, openInventory.getId(), (openInventory.getId() != packet.getWindowId() && openInventory.getWindowType() != packet.getType()));
+                // If the window type is the same, don't close.
+                // In rare cases, inventories can do funny things where it keeps the same window type up but change the contents.
+                if (openInventory.getWindowType() != packet.getType()) {
+                    // Sometimes the server can double-open an inventory with the same ID - don't confirm in that instance.
+                    InventoryUtils.closeInventory(session, openInventory.getId(), openInventory.getId() != packet.getWindowId());
+                }
             }
 
             session.setInventoryTranslator(newTranslator);

connector/src/main/java/org/geysermc/connector/network/translators/java/window/JavaSetSlotTranslator.java

@@ -80,8 +80,14 @@ public class JavaSetSlotTranslator extends PacketTranslator<ServerSetSlotPacket>
                 session.setCraftingGridFuture(session.getConnector().getGeneralThreadPool().schedule(() -> session.addInventoryTask(() -> updateCraftingGrid(session, packet, inventory, translator)), 150, TimeUnit.MILLISECONDS));
 
                 GeyserItemStack newItem = GeyserItemStack.from(packet.getItem());
-                inventory.setItem(packet.getSlot(), newItem, session);
-                translator.updateSlot(session, inventory, packet.getSlot());
+                if (packet.getWindowId() == 0 && !(translator instanceof PlayerInventoryTranslator)) {
+                    // In rare cases, the window ID can still be 0 but Java treats it as valid
+                    session.getPlayerInventory().setItem(packet.getSlot(), newItem, session);
+                    InventoryTranslator.PLAYER_INVENTORY_TRANSLATOR.updateSlot(session, session.getPlayerInventory(), packet.getSlot());
+                } else {
+                    inventory.setItem(packet.getSlot(), newItem, session);
+                    translator.updateSlot(session, inventory, packet.getSlot());
+                }
             }
         });
     }