Working on improving the serialization system and ObjectProperty/IPropertyObject (TODO: come up with better names). The plan is to:

- Add support for some of the most common types (vectors, colors, rects) so there's no need to parse the values in the setters of the serializable properties (see Holdable.HoldPos for example).
- Make a generic version of the item editing HUD that can be used on any IPropertyObject. Should make it easier to implement things like the character editor, editing structure properties, particle editor, etc.
- Improve the interface of the editing HUD. Instead of having to type in a string value into a textbox, there should be number input fields for numeric properties, sliders for properties that only accept a range of values, a color picker, etc. And tooltips.

Barotrauma/BarotraumaShared/Source/Items/Components/ItemContainer.cs

@@ -18,7 +18,7 @@ namespace Barotrauma.Items.Components
         private ushort[] itemIds;
 
         //how many items can be contained
-        [HasDefaultValue(5, false)]
+        [SerializableProperty(5, false)]
         public int Capacity
         {
             get { return capacity; }
@@ -26,7 +26,7 @@ namespace Barotrauma.Items.Components
         }
         private int capacity;
 
-        [HasDefaultValue(true, false)]
+        [SerializableProperty(true, false)]
         public bool HideItems
         {
             get { return hideItems; }
@@ -38,7 +38,7 @@ namespace Barotrauma.Items.Components
         }
         private bool hideItems;
 
-        [HasDefaultValue(false, false)]
+        [SerializableProperty(false, false)]
         public bool DrawInventory
         {
             get { return drawInventory; }
@@ -47,24 +47,24 @@ namespace Barotrauma.Items.Components
         private bool drawInventory;
 
         //the position of the first item in the container
-        [HasDefaultValue("0.0,0.0", false)]
-        public string ItemPos
+        [SerializableProperty("0.0,0.0", false)]
+        public Vector2 ItemPos
         {
-            get { return XMLExtensions.Vector2ToString(itemPos); }
-            set { itemPos = XMLExtensions.ParseToVector2(value); }
+            get { return itemPos; }
+            set { itemPos = value; }
         }
         private Vector2 itemPos;
 
         //item[i].Pos = itemPos + itemInterval*i 
-        [HasDefaultValue("0.0,0.0", false)]
-        public string ItemInterval
+        [SerializableProperty("0.0,0.0", false)]
+        public Vector2 ItemInterval
         {
-            get { return XMLExtensions.Vector2ToString(itemInterval); }
-            set { itemInterval = XMLExtensions.ParseToVector2(value); }
+            get { return itemInterval; }
+            set { itemInterval = value; }
         }
         private Vector2 itemInterval;
 
-        [HasDefaultValue(0.0f, false)]
+        [SerializableProperty(0.0f, false)]
         public float ItemRotation
         {
             get { return MathHelper.ToDegrees(itemRotation); }
@@ -73,19 +73,18 @@ namespace Barotrauma.Items.Components
         private float itemRotation;
 
 
-        [HasDefaultValue("0.5,0.9", false)]
-        public string HudPos
+        [SerializableProperty("0.5,0.9", false)]
+        public Vector2 HudPos
         {
-            get { return XMLExtensions.Vector2ToString(hudPos); }
+            get { return hudPos; }
             set 
             { 
-                hudPos = XMLExtensions.ParseToVector2(value);
-                //inventory.CenterPos = hudPos;
+                hudPos = value;
             }
         }
         private Vector2 hudPos;
 
-        [HasDefaultValue(5, false)]
+        [SerializableProperty(5, false)]
         public int SlotsPerRow
         {
             get { return slotsPerRow; }