Small inventory fixes (#1029)

* Increase minimum delay between closing and opening a new window

* Fix potential crash when opening player inventory

connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockInteractTranslator.java

@@ -135,12 +135,15 @@ public class BedrockInteractTranslator extends PacketTranslator<InteractPacket>
                 }
                 break;
             case OPEN_INVENTORY:
-                ContainerOpenPacket containerOpenPacket = new ContainerOpenPacket();
-                containerOpenPacket.setId((byte) 0);
-                containerOpenPacket.setType(ContainerType.INVENTORY);
-                containerOpenPacket.setUniqueEntityId(-1);
-                containerOpenPacket.setBlockPosition(entity.getPosition().toInt());
-                session.sendUpstreamPacket(containerOpenPacket);
+                if (!session.getInventory().isOpen()) {
+                    ContainerOpenPacket containerOpenPacket = new ContainerOpenPacket();
+                    containerOpenPacket.setId((byte) 0);
+                    containerOpenPacket.setType(ContainerType.INVENTORY);
+                    containerOpenPacket.setUniqueEntityId(-1);
+                    containerOpenPacket.setBlockPosition(entity.getPosition().toInt());
+                    session.sendUpstreamPacket(containerOpenPacket);
+                    session.getInventory().setOpen(true);
+                }
                 break;
         }
     }

connector/src/main/java/org/geysermc/connector/utils/InventoryUtils.java

@@ -56,7 +56,7 @@ public class InventoryUtils {
             translator.prepareInventory(session, inventory);
             //Ensure at least half a second passes between closing and opening a new window
             //The client will not open the new window if it is still closing the old one
-            long delay = 500 - (System.currentTimeMillis() - session.getLastWindowCloseTime());
+            long delay = 700 - (System.currentTimeMillis() - session.getLastWindowCloseTime());
             //TODO: find better way to handle double chest delay
             if (translator instanceof DoubleChestInventoryTranslator) {
                 delay = Math.max(delay, 200);
@@ -87,6 +87,7 @@ public class InventoryUtils {
             }
         } else {
             Inventory inventory = session.getInventory();
+            inventory.setOpen(false);
             InventoryTranslator translator = InventoryTranslator.INVENTORY_TRANSLATORS.get(inventory.getWindowType());
             translator.updateInventory(session, inventory);
         }