Merge branch 'fix-category-serialisation' into realtime-multiplayer-2

osu.Game/IO/Serialization/Converters/SnakeCaseStringEnumConverter.cs

@@ -0,0 +1,16 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Serialization;
+
+namespace osu.Game.IO.Serialization.Converters
+{
+    public class SnakeCaseStringEnumConverter : StringEnumConverter
+    {
+        public SnakeCaseStringEnumConverter()
+        {
+            NamingStrategy = new SnakeCaseNamingStrategy();
+        }
+    }
+}

osu.Game/Online/Multiplayer/Room.cs

@@ -6,6 +6,7 @@ using System.Linq;
 using Newtonsoft.Json;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
+using osu.Game.IO.Serialization.Converters;
 using osu.Game.Online.Multiplayer.GameTypes;
 using osu.Game.Online.Multiplayer.RoomStatuses;
 using osu.Game.Users;
@@ -35,9 +36,18 @@ namespace osu.Game.Online.Multiplayer
         public readonly Bindable<int> ChannelId = new Bindable<int>();
 
         [Cached]
-        [JsonProperty("category")]
+        [JsonIgnore]
         public readonly Bindable<RoomCategory> Category = new Bindable<RoomCategory>();
 
+        // Todo: osu-framework bug (https://github.com/ppy/osu-framework/issues/4106)
+        [JsonProperty("category")]
+        [JsonConverter(typeof(SnakeCaseStringEnumConverter))]
+        private RoomCategory category
+        {
+            get => Category.Value;
+            set => Category.Value = value;
+        }
+
         [Cached]
         [JsonIgnore]
         public readonly Bindable<TimeSpan?> Duration = new Bindable<TimeSpan?>();