Added Acquired and Origin properties to InventoryItem

Facepunch.Steamworks.Test/InventoryTest.cs

@@ -74,6 +74,32 @@ public async Task GetAllItems()
 			}
 		}
 
+		[TestMethod]
+		public async Task GetItemSpecialProperties()
+		{
+			await SteamInventory.WaitForDefinitions();
+
+			var result = await SteamInventory.GetAllItemsAsync();
+
+			Assert.IsTrue( result.HasValue );
+			Assert.IsTrue( result.Value.ItemCount > 0 );
+
+			using ( result )
+			{
+				var items = result.Value.GetItems( true );
+
+				Assert.IsNotNull( items );
+
+				foreach ( var item in items )
+				{
+					Console.WriteLine( $"{item.Id} / {item.DefId} / {item.Quantity} / {item.Def?.Name} " );
+
+					Console.WriteLine( $"	Acquired: {item.Acquired}" );
+					Console.WriteLine( $"	Origin: {item.Origin}" );
+				}
+			}
+		}
+
 		[TestMethod]
 		public async Task GetAllItemsMultipleTimes()
 		{

Facepunch.Steamworks/Structs/InventoryItem.cs

@@ -123,6 +123,43 @@ internal static Dictionary<string, string> GetProperties( SteamInventoryResult_t
 			return props;
 		}
 
+		/// <summary>
+		/// Will try to return the date that this item was aquired. You need to have for the items
+		/// with their properties for this to work.
+		/// </summary>
+		public DateTime Acquired
+		{
+			get
+			{
+				if ( Properties == null ) return DateTime.UtcNow;
+
+				var str = Properties["acquired"];
+
+				var y = int.Parse( str.Substring( 0, 4 ) );
+				var m = int.Parse( str.Substring( 4, 2 ) );
+				var d = int.Parse( str.Substring( 6, 2 ) );
+
+				var h = int.Parse( str.Substring( 9, 2 ) );
+				var mn = int.Parse( str.Substring( 11, 2 ) );
+				var s = int.Parse( str.Substring( 13, 2 ) );
+
+				return new DateTime( y, m, d, h, mn, s, DateTimeKind.Utc );
+			}
+		}
+
+		/// <summary>
+		/// Tries to get the origin property. Need properties for this to work.
+		/// Will return a string like "market"
+		/// </summary>
+		public string Origin
+		{
+			get
+			{
+				if ( Properties == null ) return null;
+				return Properties["origin"];
+			}
+		}
+
 		/// <summary>
 		/// Small utility class to describe an item with a quantity
 		/// </summary>