Implement inventory system with item management and pickup functionality

GameCore/Inventory/InventoryComponent.cs

@@ -0,0 +1,46 @@
+using GameCore.ECS.Interfaces;
+
+namespace GameCore.Inventory;
+
+public class InventoryComponent : IComponent
+{
+    private readonly Dictionary<string, Item> _items = new();
+
+    public bool AddItem(Item itemToAdd)
+    {
+        if (_items.TryGetValue(itemToAdd.ItemId, out var exisitingItem))
+        {
+            exisitingItem.Quantity += itemToAdd.Quantity;
+            _items[itemToAdd.ItemId] = exisitingItem;
+        }
+        else
+        {
+            _items.Add(itemToAdd.ItemId, itemToAdd);
+        }
+
+        return true;
+    }
+
+    public bool RemoveItem(string itemId, int quantity)
+    {
+        if (!_items.TryGetValue(itemId, out var existingItem) || existingItem.Quantity < quantity) return false;
+
+        existingItem.Quantity -= quantity;
+        if (existingItem.Quantity <= 0)
+            _items.Remove(itemId);
+        else
+            _items[itemId] = existingItem;
+
+        return true;
+    }
+
+    public int GetItemCount(string itemId)
+    {
+        return _items.TryGetValue(itemId, out var existingItem) ? existingItem.Quantity : 0;
+    }
+
+    public bool HasItem(string itemId, int quantity = 1)
+    {
+        return GetItemCount(itemId) >= quantity;
+    }
+}