Added DiscordRichPresenceClient

osu.Desktop/DiscordRichPresenceClient.cs

@@ -0,0 +1,106 @@
+// 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 DiscordRPC;
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Logging;
+using osu.Game.Online.API;
+using osu.Game.Rulesets;
+using osu.Game.Users;
+using User = osu.Game.Users.User;
+
+namespace osu.Desktop
+{
+    internal class DiscordRichPresenceClient : Component
+    {
+        private const string client_id = "559391129716391967";
+
+        private Bindable<User> user;
+
+        private readonly DiscordRpcClient client = new DiscordRpcClient(client_id);
+
+        [BackgroundDependencyLoader]
+        private void load(IAPIProvider provider)
+        {
+            user = provider.LocalUser.GetBoundCopy();
+
+            user.ValueChanged += usr =>
+            {
+                usr.OldValue.Status.ValueChanged -= updateStatus;
+                usr.NewValue.Status.ValueChanged += updateStatus;
+            };
+
+            user.Value.Status.ValueChanged += updateStatus;
+
+            client.OnReady += (_, __) => Logger.Log("Discord RPC Client ready.", LoggingTarget.Network, LogLevel.Debug);
+            client.OnError += (_, e) => Logger.Log($"An error occurred with Discord RPC Client : {e.Message}", LoggingTarget.Network, LogLevel.Debug);
+            client.OnConnectionFailed += (_, e) => Logger.Log("Discord RPC Client failed to initialize : is discord running ?", LoggingTarget.Network, LogLevel.Debug);
+            client.OnPresenceUpdate += (_, __) => Logger.Log("Updated Discord Rich Presence", LoggingTarget.Network, LogLevel.Debug);
+
+            client.Initialize();
+        }
+
+        private void updateStatus(ValueChangedEvent<UserStatus> e)
+        {
+            var presence = defaultPresence(e.NewValue.Message);
+
+            switch (e.NewValue)
+            {
+                case UserStatusSoloGame game:
+                    presence.State = $"{game.Beatmap.Metadata.Artist} - {game.Beatmap.Metadata.Title} [{game.Beatmap.Version}]";
+                    setPresenceGamemode(game.Beatmap.Ruleset, presence);
+                    break;
+
+                case UserStatusEditing editing:
+                    presence.State = $"{editing.Beatmap.Metadata.Artist} - {editing.Beatmap.Metadata.Title}" + (editing.Beatmap.Version != null ? $"[{editing.Beatmap.Version}]" : "");
+                    break;
+            }
+
+            client.SetPresence(presence);
+        }
+
+        private void setPresenceGamemode(RulesetInfo ruleset, RichPresence presence)
+        {
+            switch (ruleset.ID)
+            {
+                case 0:
+                    presence.Assets.SmallImageKey = "osu";
+                    break;
+
+                case 1:
+                    presence.Assets.SmallImageKey = "taiko";
+                    break;
+
+                case 2:
+                    presence.Assets.SmallImageKey = "fruits";
+                    break;
+
+                case 3:
+                    presence.Assets.SmallImageKey = "mania";
+                    break;
+            }
+
+            presence.Assets.SmallImageText = ruleset.ShortName;
+        }
+
+        private RichPresence defaultPresence(string status) => new RichPresence
+        {
+            Details = status,
+            Assets = new Assets
+            {
+                LargeImageKey = "lazer",
+                LargeImageText = "osu!lazer"
+            }
+        };
+
+        protected override void Update()
+        {
+            if (client.IsInitialized)
+                client?.Invoke();
+
+            base.Update();
+        }
+    }
+}

osu.Desktop/OsuGameDesktop.cs

@@ -64,6 +64,8 @@ namespace osu.Desktop
                 else
                     Add(new SimpleUpdateManager());
             }
+
+            Add(new DiscordRichPresenceClient());
         }
 
         protected override void ScreenChanged(IScreen lastScreen, IScreen newScreen)