Add support for nested class types

SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Extensions/GameObjectExtensions.cs

@@ -132,7 +132,15 @@ private static void ChangeLayersRecursively(this Transform trans, int layer)
         public static void BroadcastProperty(this GameObject go, CustomProperty property, Dictionary<int, GameObject> objectsById)
         {
             object objValue;
-
+			if (property.m_Type == "class")
+            {
+                var classProperty = (ClassCustomProperty)property;
+                foreach (var entry in classProperty.m_CustomProperties) 
+                {
+                    BroadcastProperty(go, entry.Value, objectsById);
+                }
+                return;
+            }
             if (property.m_Type == "bool")
             {
                 objValue = property.GetValueAsBool();

SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Editor/Loaders/CustomPropertyLoader.cs

@@ -31,7 +31,28 @@ public static CustomProperty LoadCustomProperty(XElement xProperty)
 
             property.m_Name = xProperty.GetAttributeAs("name", "");
             property.m_Type = xProperty.GetAttributeAs("type", "string");
-
+
+            if (property.m_Type == "class")
+            {
+                var classProperty = new ClassCustomProperty
+                {
+                    m_Name = property.m_Name,
+                    m_Type = property.m_Type
+                };
+                var elements = xProperty.Descendants();
+                if (elements != null)
+                {
+                    foreach (var element in elements)
+                    {
+                        var childProperty = LoadCustomProperty(element);
+                        if (!childProperty.IsEmpty)
+                        {
+                            classProperty.m_CustomProperties.Add(childProperty.m_Name, childProperty);
+                        }
+                    }
+                }
+                return classProperty;
+            }
             // In some cases, value may be in the default attribute
             property.m_Value = xProperty.GetAttributeAs("default", "");
 

SuperTiled2Unity/Packages/com.seanba.super-tiled2unity/Runtime/CustomProperty.cs

@@ -10,7 +10,26 @@ public class CustomProperty
         public string m_Type;
         public string m_Value;
 
-        public bool IsEmpty => string.IsNullOrEmpty(m_Name);
+        public virtual CustomProperty GetCustomProperty(string key) => this;
+
+        public bool IsEmpty
+        {
+            get { return string.IsNullOrEmpty(m_Name); }
+        }
+    }
+
+    [Serializable]
+    public class ClassCustomProperty : CustomProperty
+    {
+        public Dictionary<string, CustomProperty> m_CustomProperties = new Dictionary<string, CustomProperty>();
+
+        public override CustomProperty GetCustomProperty(string key)
+        {
+            if (m_CustomProperties.TryGetValue(key, out var customProperty))
+                return customProperty;
+            return null;
+        }
+
     }
 
     // Helper extension methods
@@ -20,12 +39,17 @@ public static bool TryGetProperty(this List<CustomProperty> list, string propert
         {
             if (list != null)
             {
-                property = list.Find(p => String.Equals(p.m_Name, propertyName, StringComparison.OrdinalIgnoreCase));
-                return property != null;
+                property = list.Find(p => String.Equals(p.GetCustomProperty(propertyName)?.m_Name, propertyName, StringComparison.OrdinalIgnoreCase));
+                if (property != null)
+                {
+                    property = property.GetCustomProperty(propertyName);
+                    return true;
+                }
+                return false;
             }
 
             property = null;
             return false;
         }
     }
-}
+}