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Src/Inventory/IPlayerEquipmentInventory.cs

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+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using BITKit;
+using UnityEngine;
+
+namespace Net.Project.B.Inventory
+{
+    public interface IPlayerEquipmentInventory
+    {
+        IReadOnlyDictionary<int, IRuntimeItem> Items { get; }
+        public event Action<int, IRuntimeItem> OnItemAdded;
+        public event Action<int, IRuntimeItem> OnItemUpdated;
+        public event Action<int, IRuntimeItem> OnItemConsumed;
+        public event Action<int, IRuntimeItem> OnItemRemoved;
+        bool AddOrUpdate(int slot, IRuntimeItem item);
+        bool Remove(int slot);
+        bool Consume(int slot);
+    }
+
+    public class PlayerEquipmentInventory : IPlayerEquipmentInventory
+    {
+        public IReadOnlyDictionary<int, IRuntimeItem> Items => _items;
+        private readonly ConcurrentDictionary<int, IRuntimeItem> _items = new();
+        public event Action<int, IRuntimeItem> OnItemAdded;
+        public event Action<int, IRuntimeItem> OnItemUpdated;
+        public event Action<int, IRuntimeItem> OnItemConsumed;
+        public event Action<int, IRuntimeItem> OnItemRemoved;
+
+        public virtual bool AddOrUpdate(int slot, IRuntimeItem item)
+        {
+            if (_items.TryGetValue(slot, out var current))
+            {
+                if (current.Id != item.Id) return false;
+
+                _items[slot] = item;
+                OnItemUpdated?.Invoke(slot, item);
+            }
+            else
+            {
+                _items.TryAdd(slot, item);
+                OnItemAdded?.Invoke(slot, item);
+            }
+
+            return true;
+        }
+
+        public virtual bool Remove(int slot)
+        {
+            if (!_items.TryRemove(slot, out var item)) return false;
+            OnItemRemoved?.Invoke(slot, item);
+            return true;
+
+        }
+
+        public virtual bool Consume(int slot)
+        {
+            if (_items.TryRemove(slot, out _) is false) return false;
+            OnItemConsumed?.Invoke(slot, null);
+            return true;
+        }
+    }
+}