Add inventory controls and enhance dashboard

mosfet/protocol/managers.py

@@ -471,6 +471,7 @@ class InventoryManager:
             self.g.inv = slots
             self.g.inventory_partial = packet.partial
             self.g.cursor = self.to_slot(packet.carried_item)
+            self._sync_held_item()
         elif (self.g.get('window') and
               packet.container_id == self.g.window.window_id):
             self.g.window.contents = slots
@@ -488,6 +489,9 @@ class InventoryManager:
         if packet.container_id == 0:
             self.g.inv[packet.slot] = item
             self.g.item_lock = False
+            if (self.g.get('holding_hand', 0) == 0 and
+                    packet.slot == 36 + self.g.get('holding_slot', 0)):
+                self.g.holding = item.item_id if item.present else 0
         elif packet.container_id == -1 and packet.slot == -1:
             self.g.cursor = item
         elif (self.g.get('window') and
@@ -501,6 +505,14 @@ class InventoryManager:
                 self.g.inv[36 + offset - 27] = item
             self.g.item_lock = False
 
+    def _sync_held_item(self):
+        if self.g.get('holding_hand', 0) != 0:
+            return
+        hotbar_slot = int(self.g.get('holding_slot', 0) or 0)
+        item = self.g.inv.get(36 + hotbar_slot)
+        self.g.holding = (item.item_id if item and
+                          getattr(item, 'present', False) else 0)
+
     def handle_cursor(self, packet):
         if packet.item.components_unknown:
             self.g.inventory_partial = True