Release v1337.420.9001

Send one request per file name. File names can be explicitly overridden.

CHANGELOG.md

@@ -1,10 +1,15 @@
 # Changelog
 
+## MuzikaGromche 1337.420.9001 - Multiverse Edition
+
+- Added support for tracks to rotate between multiple audio variants during a round.
+- Added a new track Beha with three different variants of intro.
+
 ## MuzikaGromche 1337.420.69 - It's All DiscoNnected Edition
 
-- Fix harmless but annoying errors in BepInEx console output.
+- Fixed harmless but annoying errors in BepInEx console output.
 - Improve smoothness of color animations.
-- Add a new track.
+- Added a new track BeefLiver.
 
 ## MuzikaGromche 1337.69.420 - It's All Connected Edition
 

MuzikaGromche/MuzikaGromche.csproj

@@ -8,7 +8,7 @@
         <AssemblyName>Ratijas.MuzikaGromche</AssemblyName>
         <Product>Muzika Gromche</Product>
         <Description>Add some content to your inverse teleporter experience on Titan!</Description>
-        <Version>1337.420.69</Version>
+        <Version>1337.420.9001</Version>
         <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
         <LangVersion>latest</LangVersion>
         <Nullable>enable</Nullable>
@@ -110,7 +110,7 @@
     -->
     <Target Name="wav2ogg">
         <ItemGroup>
-            <TrackNames Include="$(TrackName)Start" />
+            <TrackNames Include="$(TrackName)Intro" />
             <TrackNames Include="$(TrackName)Loop" />
         </ItemGroup>
         <Exec Command="ffmpeg -bitexact -y -i $(WavExportDir)%(TrackNames.Identity).wav $(SolutionDir)Assets\%(TrackNames.Identity).ogg" />

MuzikaGromche/Plugin.cs

@@ -48,8 +48,8 @@ namespace MuzikaGromche
                 .Select(a => $" Trying... {a}")
         ];
 
-        public static readonly Track[] Tracks = [
-            new Track
+        public static readonly ISelectableTrack[] Tracks = [
+            new SelectableAudioTrack
             {
                 Name = "MuzikaGromche",
                 AudioType = AudioType.OGGVORBIS,
@@ -89,7 +89,7 @@ namespace MuzikaGromche
                     (63, "Muzyka Gromche\nGlaza zakryty >_<"),
                 ],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "VseVZale",
                 AudioType = AudioType.OGGVORBIS,
@@ -124,7 +124,7 @@ namespace MuzikaGromche
                     (60, "Everybody shake your body"),
                 ],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "DeployDestroy",
                 AudioType = AudioType.OGGVORBIS,
@@ -167,7 +167,7 @@ namespace MuzikaGromche
                     (25, "Davaj-davaj!"),
                 ],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "MoyaZhittya",
                 AudioType = AudioType.OGGVORBIS,
@@ -214,7 +214,7 @@ namespace MuzikaGromche
                     ( 30, "IT'S MY"),
                 ],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Gorgorod",
                 AudioType = AudioType.OGGVORBIS,
@@ -232,7 +232,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [20],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Durochka",
                 AudioType = AudioType.OGGVORBIS,
@@ -250,7 +250,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-9],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "ZmeiGorynich",
                 AudioType = AudioType.OGGVORBIS,
@@ -268,7 +268,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-5, 31],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "GodMode",
                 AudioType = AudioType.OGGVORBIS,
@@ -286,7 +286,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-5],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "RiseAndShine",
                 AudioType = AudioType.OGGVORBIS,
@@ -304,7 +304,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-5.5f, 31, 63.9f],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Song2",
                 AudioType = AudioType.OGGVORBIS,
@@ -322,7 +322,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [2.5f],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Peretasovka",
                 AudioType = AudioType.OGGVORBIS,
@@ -340,7 +340,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-8, 31],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Yalgaar",
                 AudioType = AudioType.OGGVORBIS,
@@ -358,7 +358,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-5],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Chereshnya",
                 AudioType = AudioType.OGGVORBIS,
@@ -379,7 +379,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-5, 27, 29, 59, 61],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "PWNED",
                 AudioType = AudioType.OGGVORBIS,
@@ -451,7 +451,7 @@ namespace MuzikaGromche
                     (98, $"\t\t\tresolving ur private IP\nP_WNED"),
                 ],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "Kach",
                 AudioType = AudioType.OGGVORBIS,
@@ -475,7 +475,7 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-120.5f, -105, -89, -8, 44, 45],
                 Lyrics = [],
             },
-            new Track
+            new SelectableAudioTrack
             {
                 Name = "BeefLiver",
                 AudioType = AudioType.OGGVORBIS,
@@ -496,9 +496,78 @@ namespace MuzikaGromche
                 FlickerLightsTimeSeries = [-48, -40, -4.5f, 44],
                 Lyrics = [],
             },
+            new SelectableTracksGroup
+            {
+                Name = "Beha",
+                Language = Language.RUSSIAN,
+                IsExplicit = true,
+                Tracks =
+                [
+                    new CoreAudioTrack
+                    {
+                        Name = "Beha1",
+                        FileNameLoop = "BehaLoop.ogg",
+                        AudioType = AudioType.OGGVORBIS,
+                        WindUpTimer = 35.23f,
+                        Beats = 8 * 4 + 2,
+                        BeatsOffset = 0.0f,
+                        ColorTransitionIn = 0.1f,
+                        ColorTransitionOut = 0.6f,
+                        ColorTransitionEasing = Easing.OutExpo,
+                        Palette = Palette.Parse([
+                            "#9554F9", "#3769FD", "#E43B65", "#59CFEA", "#7F3FEE", "#C831FE",
+                        ]),
+                        LoopOffset = 0,
+                        FadeOutBeat = -4,
+                        FadeOutDuration = 3.9f,
+                        FlickerLightsTimeSeries = [-6, 16.5f],
+                        Lyrics = [],
+                    },
+                    new CoreAudioTrack
+                    {
+                        Name = "Beha2",
+                        FileNameLoop = "BehaLoop.ogg",
+                        AudioType = AudioType.OGGVORBIS,
+                        WindUpTimer = 38.16f,
+                        Beats = 8 * 4 + 2,
+                        BeatsOffset = 0.0f,
+                        ColorTransitionIn = 0.1f,
+                        ColorTransitionOut = 0.6f,
+                        ColorTransitionEasing = Easing.OutExpo,
+                        Palette = Palette.Parse([
+                            "#9554F9", "#3769FD", "#E43B65", "#59CFEA", "#7F3FEE", "#C831FE",
+                        ]),
+                        LoopOffset = 0,
+                        FadeOutBeat = -4,
+                        FadeOutDuration = 3.9f,
+                        FlickerLightsTimeSeries = [-6, 16.5f],
+                        Lyrics = [],
+                    },
+                    new CoreAudioTrack
+                    {
+                        Name = "Beha3",
+                        FileNameLoop = "BehaLoop.ogg",
+                        AudioType = AudioType.OGGVORBIS,
+                        WindUpTimer = 35.21f,
+                        Beats = 8 * 4 + 2,
+                        BeatsOffset = 0.0f,
+                        ColorTransitionIn = 0.1f,
+                        ColorTransitionOut = 0.6f,
+                        ColorTransitionEasing = Easing.OutExpo,
+                        Palette = Palette.Parse([
+                            "#9554F9", "#3769FD", "#E43B65", "#59CFEA", "#7F3FEE", "#C831FE",
+                        ]),
+                        LoopOffset = 0,
+                        FadeOutBeat = -4,
+                        FadeOutDuration = 3.9f,
+                        FlickerLightsTimeSeries = [-6, 16.5f],
+                        Lyrics = [],
+                    },
+                ],
+            },
         ];
 
-        public static Track ChooseTrack()
+        public static ISelectableTrack ChooseTrack()
         {
             var seed = RoundManager.Instance.dungeonGenerator.Generator.ChosenSeed;
             var tracks = Config.SkipExplicitTracks.Value ? [.. Tracks.Where(track => !track.IsExplicit)] : Tracks;
@@ -510,12 +579,12 @@ namespace MuzikaGromche
             return tracks[trackId];
         }
 
-        public static Track? FindTrackNamed(string name)
+        public static IAudioTrack? FindTrackNamed(string name)
         {
-            return Tracks.FirstOrDefault(track => track.Name == name);
+            return Tracks.SelectMany(track => track.GetTracks()).FirstOrDefault(track => track.Name == name);
         }
 
-        internal static Track? CurrentTrack;
+        internal static IAudioTrack? CurrentTrack;
         internal static BeatTimeState? BeatTimeState;
 
         public static void SetLightColor(Color color)
@@ -559,29 +628,49 @@ namespace MuzikaGromche
             Array.Sort(Tracks.Select(track => track.Name).ToArray(), Tracks);
 
             string dir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
-            UnityWebRequest[] requests = new UnityWebRequest[Tracks.Length * 2];
-            for (int i = 0; i < Tracks.Length; i++)
+            Dictionary<string, (UnityWebRequest Request, List<Action<AudioClip>> Setters)> requests = [];
+            requests.EnsureCapacity(Tracks.Length * 2);
+
+            foreach (var track in Tracks.SelectMany(track => track.GetTracks()))
             {
-                Track track = Tracks[i];
-                requests[i * 2] = UnityWebRequestMultimedia.GetAudioClip($"file://{dir}/{track.FileNameStart}", track.AudioType);
-                requests[i * 2 + 1] = UnityWebRequestMultimedia.GetAudioClip($"file://{dir}/{track.FileNameLoop}", track.AudioType);
-                requests[i * 2].SendWebRequest();
-                requests[i * 2 + 1].SendWebRequest();
+                foreach (var (fileName, setter) in new (string, Action<AudioClip>)[]
+                {
+                    (track.FileNameIntro, clip => track.LoadedIntro = clip),
+                    (track.FileNameLoop, clip => track.LoadedLoop = clip),
+                })
+                {
+                    if (requests.TryGetValue(fileName, out var tuple))
+                    {
+                        tuple.Setters.Add(setter);
+                    }
+                    else
+                    {
+                        var request = UnityWebRequestMultimedia.GetAudioClip($"file://{dir}/{fileName}", track.AudioType);
+                        request.SendWebRequest();
+                        requests[fileName] = (request, [setter]);
+                    }
+                }
             }
 
-            while (!requests.All(request => request.isDone)) { }
+            while (!requests.Values.All(tuple => tuple.Request.isDone)) { }
 
-            if (requests.All(request => request.result == UnityWebRequest.Result.Success))
+            if (requests.Values.All(tuple => tuple.Request.result == UnityWebRequest.Result.Success))
             {
-                for (int i = 0; i < Tracks.Length; i++)
+
+                foreach (var (fileName, tuple) in requests)
                 {
-                    Track track = Tracks[i];
-                    track.LoadedStart = DownloadHandlerAudioClip.GetContent(requests[i * 2]);
-                    track.LoadedLoop = DownloadHandlerAudioClip.GetContent(requests[i * 2 + 1]);
+                    var clip = DownloadHandlerAudioClip.GetContent(tuple.Request);
+                    foreach (var setter in tuple.Setters)
+                    {
+                        setter(clip);
+                    }
+                }
 #if DEBUG
-                    Debug.Log($"{nameof(MuzikaGromche)} Track {track.Name} {track.LoadedStart.length:N4} {track.LoadedLoop.length:N4}");
-#endif
+                foreach (var track in Tracks)
+                {
+                    track.Debug();
                 }
+#endif
                 Config = new Config(base.Config);
                 DiscoBallManager.Load();
                 PoweredLightsAnimators.Load();
@@ -598,7 +687,7 @@ namespace MuzikaGromche
             }
             else
             {
-                var failed = requests.Where(request => request.result != UnityWebRequest.Result.Success).Select(request => request.GetUrl());
+                var failed = requests.Values.Where(tuple => tuple.Request.result != UnityWebRequest.Result.Success).Select(tuple => tuple.Request.GetUrl());
                 Logger.LogError("Could not load audio file " + string.Join(", ", failed));
             }
         }
@@ -701,48 +790,80 @@ namespace MuzikaGromche
         }
     }
 
-    public class Track
+    public struct SelectableTrackData()
     {
-        public required string Name;
+        // Name of the track, as shown in config entry UI; also used for default file names.
+        public required string Name { get; init; }
+
         // Language of the track's lyrics.
-        public required Language Language;
+        public required Language Language { get; init; }
+
         // Whether this track has NSFW/explicit lyrics.
-        public bool IsExplicit = false;
-        // Wind-up time can and should be shorter than the Start audio track,
-        // so that the "pop" effect can be baked into the Start audio and kept away
+        public bool IsExplicit { get; init; } = false;
+
+        // How often this track should be chosen, relative to the sum of weights of all tracks.
+        public ConfigEntry<int> Weight { get; internal set; } = null!;
+    }
+
+    // An instance of a track which appears as a configuration entry and
+    // can be selected using weighted random from a list of selectable tracks.
+    public interface ISelectableTrack
+    {
+        // Name of the track, as shown in config entry UI; also used for default file names.
+        public string Name { get; init; }
+
+        // Language of the track's lyrics.
+        public Language Language { get; init; }
+
+        // Whether this track has NSFW/explicit lyrics.
+        public bool IsExplicit { get; init; }
+
+        // How often this track should be chosen, relative to the sum of weights of all tracks.
+        internal ConfigEntry<int> Weight { get; set; }
+
+        internal IAudioTrack[] GetTracks();
+
+        // Index is a non-negative monotonically increasing number of times
+        // this ISelectableTrack has been played for this Jester on this day.
+        // A group of tracks can use this index to rotate tracks sequentially.
+        internal IAudioTrack SelectTrack(int index);
+
+        internal void Debug();
+    }
+
+    // An instance of a track which has file names, timings data, palette; can be loaded and played.
+    public interface IAudioTrack
+    {
+        // Name of the track used for default file names.
+        public string Name { get; }
+
+        // Wind-up time can and should be shorter than the Intro audio track,
+        // so that the "pop" effect can be baked into the Intro audio and kept away
         // from the looped part. This also means that the light show starts before
         // the looped track does, so we need to sync them up as soon as we enter the Loop.
-        public required float WindUpTimer;
+        public float WindUpTimer { get; }
 
         // Estimated number of beats per minute. Not used for light show, but might come in handy.
         public float Bpm => 60f / (LoadedLoop.length / Beats);
 
         // How many beats the loop segment has. The default strategy is to switch color of lights on each beat.
-        public int Beats;
+        public int Beats { get; }
 
         // Number of beats between WindUpTimer and where looped segment starts (not the loop audio).
-        public int LoopOffset = 0;
+        public int LoopOffset { get; }
         public float LoopOffsetInSeconds => LoopOffset / Beats * LoadedLoop.length;
 
-        // Shorthand for four beats
-        public int Bars
-        {
-            set => Beats = value * 4;
-        }
-
         // MPEG is basically mp3, and it can produce gaps at the start.
         // WAV is OK, but takes a lot of space. Try OGGVORBIS instead.
-        public AudioType AudioType = AudioType.MPEG;
+        public AudioType AudioType { get; }
 
-        public AudioClip LoadedStart = null!;
-        public AudioClip LoadedLoop = null!;
+        public AudioClip LoadedIntro { get; internal set; }
+        public AudioClip LoadedLoop { get; internal set; }
 
-        // How often this track should be chosen, relative to the sum of weights of all tracks.
-        public ConfigEntry<int> Weight = null!;
+        public string FileNameIntro { get; }
+        public string FileNameLoop { get; }
 
-        public string FileNameStart => $"{Name}Start.{Ext}";
-        public string FileNameLoop => $"{Name}Loop.{Ext}";
-        private string Ext => AudioType switch
+        public string Ext => AudioType switch
         {
             AudioType.MPEG => "mp3",
             AudioType.WAV => "wav",
@@ -751,28 +872,86 @@ namespace MuzikaGromche
         };
 
         // Offset of beats. Bigger offset => colors will change later.
+        public float BeatsOffset { get; }
+
+        // Offset of beats, in seconds. Bigger offset => colors will change later.
+        public float BeatsOffsetInSeconds => BeatsOffset / Beats * LoadedLoop.length;
+
+        public float FadeOutBeat { get; }
+        public float FadeOutDuration { get; }
+
+        // Duration of color transition, measured in beats.
+        public float ColorTransitionIn { get; }
+        public float ColorTransitionOut { get; }
+
+        // Easing function for color transitions.
+        public Easing ColorTransitionEasing { get; }
+
+        public float[] FlickerLightsTimeSeries { get; }
+
+        public float[] LyricsTimeSeries { get; }
+
+        // Lyrics line may contain multiple tab-separated alternatives.
+        // In such case, a random number chosen and updated once per loop
+        // is used to select an alternative.
+        // If the chosen alternative is an empty string, lyrics event shall be skipped.
+        public string[] LyricsLines { get; }
+
+        public Palette Palette { get; }
+    }
+ 
+    // Core audio track implementation with some defaults and config overrides.
+    // Suitable to declare elemnents of SelectableTracksGroup and as a base for standalone selectable tracks.
+    public class CoreAudioTrack : IAudioTrack
+    {
+        public required string Name { get; init; }
+        public required float WindUpTimer { get; init; }
+        public int Beats { get; init; }
+
+        // Shorthand for four beats
+        public int Bars
+        {
+            init => Beats = value * 4;
+        }
+
+        public int LoopOffset { get; init; } = 0;
+        public AudioType AudioType { get; init; } = AudioType.MPEG;
+        public AudioClip LoadedIntro { get; set; } = null!;
+        public AudioClip LoadedLoop { get; set; } = null!;
+
+        private string? FileNameIntroOverride = null;
+        public string FileNameIntro
+        {
+            get => FileNameIntroOverride ?? $"{Name}Intro.{((IAudioTrack)this).Ext}";
+            init => FileNameIntroOverride = value;
+        }
+
+        private string? FileNameLoopOverride = null;
+        public string FileNameLoop
+        {
+            get => FileNameLoopOverride ?? $"{Name}Loop.{((IAudioTrack)this).Ext}";
+            init => FileNameLoopOverride = value;
+        }
+
         public float _BeatsOffset = 0f;
         public float BeatsOffset
         {
             get => Config.BeatsOffsetOverride ?? _BeatsOffset;
-            set => _BeatsOffset = value;
+            init => _BeatsOffset = value;
         }
 
-        // Offset of beats, in seconds. Bigger offset => colors will change later.
-        public float BeatsOffsetInSeconds => BeatsOffset / Beats * LoadedLoop.length;
-
         public float _FadeOutBeat = float.NaN;
         public float FadeOutBeat
         {
             get => Config.FadeOutBeatOverride ?? _FadeOutBeat;
-            set => _FadeOutBeat = value;
+            init => _FadeOutBeat = value;
         }
 
         public float _FadeOutDuration = 2f;
         public float FadeOutDuration
         {
             get => Config.FadeOutDurationOverride ?? _FadeOutDuration;
-            set => _FadeOutDuration = value;
+            init => _FadeOutDuration = value;
         }
 
         // Duration of color transition, measured in beats.
@@ -780,14 +959,14 @@ namespace MuzikaGromche
         public float ColorTransitionIn
         {
             get => Config.ColorTransitionInOverride ?? _ColorTransitionIn;
-            set => _ColorTransitionIn = value;
+            init => _ColorTransitionIn = value;
         }
 
         public float _ColorTransitionOut = 0.25f;
         public float ColorTransitionOut
         {
             get => Config.ColorTransitionOutOverride ?? _ColorTransitionOut;
-            set => _ColorTransitionOut = value;
+            init => _ColorTransitionOut = value;
         }
 
         // Easing function for color transitions.
@@ -797,14 +976,14 @@ namespace MuzikaGromche
             get => Config.ColorTransitionEasingOverride != null
                 ? Easing.FindByName(Config.ColorTransitionEasingOverride)
                 : _ColorTransitionEasing;
-            set => _ColorTransitionEasing = value;
+            init => _ColorTransitionEasing = value;
         }
 
         public float[] _FlickerLightsTimeSeries = [];
         public float[] FlickerLightsTimeSeries
         {
             get => Config.FlickerLightsTimeSeriesOverride ?? _FlickerLightsTimeSeries;
-            set
+            init
             {
                 Array.Sort(value);
                 _FlickerLightsTimeSeries = value;
@@ -845,6 +1024,53 @@ namespace MuzikaGromche
         }
     }
 
+    // Standalone, top-level, selectable audio track
+    public class SelectableAudioTrack : CoreAudioTrack, ISelectableTrack
+    {
+        public required Language Language { get; init; }
+        public bool IsExplicit { get; init; } = false;
+        ConfigEntry<int> ISelectableTrack.Weight { get; set; } = null!;
+
+        IAudioTrack[] ISelectableTrack.GetTracks() => [this];
+
+        IAudioTrack ISelectableTrack.SelectTrack(int index) => this;
+
+        void ISelectableTrack.Debug()
+        {
+            Debug.Log($"{nameof(MuzikaGromche)} Track \"{Name}\", Intro={LoadedIntro.length:N4}, Loop={LoadedLoop.length:N4}");
+        }
+    }
+
+    public class SelectableTracksGroup : ISelectableTrack
+    {
+        public required string Name { get; init; }
+        public required Language Language { get; init; }
+        public bool IsExplicit { get; init; } = false;
+        ConfigEntry<int> ISelectableTrack.Weight { get; set; } = null!;
+
+        public required IAudioTrack[] Tracks;
+
+        IAudioTrack[] ISelectableTrack.GetTracks() => Tracks;
+
+        IAudioTrack ISelectableTrack.SelectTrack(int index)
+        {
+            if (Tracks.Length == 0)
+            {
+                throw new IndexOutOfRangeException("Tracks list is empty");
+            }
+            return Mod.Index(Tracks, index);
+        }
+
+        void ISelectableTrack.Debug()
+        {
+            Debug.Log($"{nameof(MuzikaGromche)} Track Group \"{Name}\", Count={Tracks.Length}");
+            foreach (var (track, index) in Tracks.Select((x, i) => (x, i)))
+            {
+                Debug.Log($"{nameof(MuzikaGromche)}     Track {index} \"{track.Name}\", Intro={track.LoadedIntro.length:N4}, Loop={track.LoadedLoop.length:N4}");
+            }
+        }
+    }
+
     readonly record struct BeatTimestamp
     {
         // Number of beats in the loop audio segment.
@@ -1099,11 +1325,6 @@ namespace MuzikaGromche
             }
         }
 
-        public void Finish()
-        {
-            IsPlaying = false;
-        }
-
         public override string ToString()
         {
             return $"{nameof(ExtrapolatedAudioSourceState)}({(IsPlaying ? 'P' : '_')}{(HasStarted ? 'S' : '0')} "
@@ -1116,36 +1337,36 @@ namespace MuzikaGromche
 
     class JesterAudioSourcesState
     {
-        private readonly float StartClipLength;
+        private readonly float IntroClipLength;
 
-        // Neither start.isPlaying or loop.isPlaying are reliable indicators of which track is actually playing right now:
-        // start.isPlaying would be true during the loop when Jester chases a player,
+        // Neither intro.isPlaying or loop.isPlaying are reliable indicators of which track is actually playing right now:
+        // intro.isPlaying would be true during the loop when Jester chases a player,
         // loop.isPlaying would be true when it is played delyaed but hasn't actually started playing yet.
-        private readonly ExtrapolatedAudioSourceState Start = new();
+        private readonly ExtrapolatedAudioSourceState Intro = new();
 
         private readonly ExtrapolatedAudioSourceState Loop = new();
 
         // If true, use Start state as a reference, otherwise use Loop.
-        private bool ReferenceIsStart = true;
+        private bool ReferenceIsIntro = true;
 
-        public bool HasStarted => Start.HasStarted;
+        public bool HasStarted => Intro.HasStarted;
 
-        public bool IsExtrapolated => ReferenceIsStart ? Start.IsExtrapolated : Loop.IsExtrapolated;
+        public bool IsExtrapolated => ReferenceIsIntro ? Intro.IsExtrapolated : Loop.IsExtrapolated;
 
         // Time from the start of the start clip. It wraps when the loop AudioSource loops:
         // [...start...][...loop...]
         //              ^          |
         //              `----------'
-        public float Time => ReferenceIsStart
-            ? Start.Time
-            : StartClipLength + Loop.Time;
+        public float Time => ReferenceIsIntro
+            ? Intro.Time
+            : IntroClipLength + Loop.Time;
 
-        public JesterAudioSourcesState(float startClipLength)
+        public JesterAudioSourcesState(float introClipLength)
         {
-            StartClipLength = startClipLength;
+            IntroClipLength = introClipLength;
         }
 
-        public void Update(AudioSource start, AudioSource loop, float realtime)
+        public void Update(AudioSource intro, AudioSource loop, float realtime)
         {
             // It doesn't make sense to update start state after loop has started (because start.isPlaying occasionally becomes true).
             // But always makes sense to update loop, so we can check if it has actually started.
@@ -1154,13 +1375,13 @@ namespace MuzikaGromche
             if (!Loop.HasStarted)
             {
 #if DEBUG
-                Debug.Assert(ReferenceIsStart);
+                Debug.Assert(ReferenceIsIntro);
 #endif
-                Start.Update(start, realtime);
+                Intro.Update(intro, realtime);
             }
             else
             {
-                ReferenceIsStart = false;
+                ReferenceIsIntro = false;
             }
         }
     }
@@ -1196,7 +1417,7 @@ namespace MuzikaGromche
             //
             // NOTE 1: PlayDelayed also counts as isPlaying, so loop.isPlaying is always true and as such it's useful.
             // NOTE 2: There is a weird state when Jester has popped and chases a player:
-            //         Start/farAudio isPlaying is true but stays exactly at zero time, so we need to ignore that.
+            //         Intro/farAudio isPlaying is true but stays exactly at zero time, so we need to ignore that.
 
             var offset = StartOfLoop + additionalOffset;
 
@@ -1225,7 +1446,7 @@ namespace MuzikaGromche
 
     class BeatTimeState
     {
-        private readonly Track track;
+        private readonly IAudioTrack track;
 
         private readonly JesterAudioSourcesState AudioState;
 
@@ -1243,7 +1464,7 @@ namespace MuzikaGromche
 
         private bool WindUpZeroBeatEventTriggered = false;
 
-        public BeatTimeState(Track track)
+        public BeatTimeState(IAudioTrack track)
         {
             if (LyricsRandom == null)
             {
@@ -1251,15 +1472,15 @@ namespace MuzikaGromche
                 LyricsRandomPerLoop = LyricsRandom.Next();
             }
             this.track = track;
-            AudioState = new(track.LoadedStart.length);
+            AudioState = new(track.LoadedIntro.length);
             WindUpLoopingState = new(track.WindUpTimer, track.LoadedLoop.length, track.Beats);
             LoopLoopingState = new(track.WindUpTimer + track.LoopOffsetInSeconds, track.LoadedLoop.length, track.Beats);
         }
 
-        public List<BaseEvent> Update(AudioSource start, AudioSource loop)
+        public List<BaseEvent> Update(AudioSource intro, AudioSource loop)
         {
             var time = Time.realtimeSinceStartup;
-            AudioState.Update(start, loop, time);
+            AudioState.Update(intro, loop, time);
 
             if (AudioState.HasStarted)
             {
@@ -1777,7 +1998,7 @@ namespace MuzikaGromche
         private void SetupEntriesToSkipWinding(ConfigFile configFile)
         {
             var syncedEntry = configFile.BindSyncedEntry("General", "Skip Winding Phase", false,
-                new ConfigDescription("Skip most of the wind-up/intro/start music.\n\nUse this option to test your Loop audio segment."));
+                new ConfigDescription("Skip most of the wind-up/intro music.\n\nUse this option to test your Loop audio segment."));
             LethalConfigManager.AddConfigItem(new BoolCheckBoxConfigItem(syncedEntry.Entry, Default(new BoolCheckBoxOptions())));
             CSyncHackAddSyncedEntry(syncedEntry);
             syncedEntry.Changed += (sender, args) => apply();
@@ -1826,7 +2047,7 @@ namespace MuzikaGromche
 
             void load()
             {
-                var palette = Plugin.CurrentTrack?._Palette ?? Palette.DEFAULT;
+                var palette = (Plugin.CurrentTrack as CoreAudioTrack)?._Palette ?? Palette.DEFAULT;
                 var colors = palette.Colors;
                 var count = Math.Min(colors.Count(), maxCustomPaletteSize);
 
@@ -1859,7 +2080,7 @@ namespace MuzikaGromche
             const string section = "Timings";
             var colorTransitionRange = new AcceptableValueRange<float>(0f, 1f);
             // Declare and initialize early to avoid "Use of unassigned local variable"
-            List<(Action<Track?> Load, Action Apply)> entries = [];
+            List<(Action<CoreAudioTrack?> Load, Action Apply)> entries = [];
             SyncedEntry<bool> overrideTimingsSyncedEntry = null!;
             SyncedEntry<float> fadeOutBeatSyncedEntry = null!;
             SyncedEntry<float> fadeOutDurationSyncedEntry = null!;
@@ -1918,12 +2139,12 @@ namespace MuzikaGromche
             registerStruct(colorTransitionOutSyncedEntry, t => t._ColorTransitionOut, x => ColorTransitionOutOverride = x);
             registerClass(colorTransitionEasingSyncedEntry, t => t._ColorTransitionEasing.Name, x => ColorTransitionEasingOverride = x);
 
-            void register<T>(SyncedEntry<T> syncedEntry, Func<Track, T> getter, Action applier)
+            void register<T>(SyncedEntry<T> syncedEntry, Func<CoreAudioTrack, T> getter, Action applier)
             {
                 CSyncHackAddSyncedEntry(syncedEntry);
                 syncedEntry.SyncHostToLocal();
                 syncedEntry.Changed += (sender, args) => applier();
-                void loader(Track? track)
+                void loader(CoreAudioTrack? track)
                 {
                     // if track is null, set everything to defaults
                     syncedEntry.LocalValue = track == null ? (T)syncedEntry.Entry.DefaultValue : getter(track);
@@ -1931,11 +2152,11 @@ namespace MuzikaGromche
                 entries.Add((loader, applier));
             }
 
-            void registerStruct<T>(SyncedEntry<T> syncedEntry, Func<Track, T> getter, Action<T?> setter) where T : struct =>
+            void registerStruct<T>(SyncedEntry<T> syncedEntry, Func<CoreAudioTrack, T> getter, Action<T?> setter) where T : struct =>
                 register(syncedEntry, getter, () => setter.Invoke(overrideTimingsSyncedEntry.Value ? syncedEntry.Value : null));
-            void registerClass<T>(SyncedEntry<T> syncedEntry, Func<Track, T> getter, Action<T?> setter) where T : class =>
+            void registerClass<T>(SyncedEntry<T> syncedEntry, Func<CoreAudioTrack, T> getter, Action<T?> setter) where T : class =>
                 register(syncedEntry, getter, () => setter.Invoke(overrideTimingsSyncedEntry.Value ? syncedEntry.Value : null));
-            void registerArray<T>(SyncedEntry<string> syncedEntry, Func<Track, T[]> getter, Action<T[]?> setter, Func<string, T> parser, bool sort = false) where T : struct =>
+            void registerArray<T>(SyncedEntry<string> syncedEntry, Func<CoreAudioTrack, T[]> getter, Action<T[]?> setter, Func<string, T> parser, bool sort = false) where T : struct =>
                 register(syncedEntry,
                     (track) => string.Join(", ", getter(track)),
                     () =>
@@ -1969,7 +2190,7 @@ namespace MuzikaGromche
                 var track = Plugin.CurrentTrack;
                 foreach (var entry in entries)
                 {
-                    entry.Load(track);
+                    entry.Load(track as CoreAudioTrack);
                 }
             }
 
@@ -2016,6 +2237,11 @@ namespace MuzikaGromche
 
     class MuzikaGromcheJesterNetworkBehaviour : NetworkBehaviour
     {
+        // Number of times a selected track has been played.
+        // Increases by 1 with each ChooseTrackServerRpc call.
+        // Resets on SettingChanged.
+        private int SelectedTrackIndex = 0;
+
         public override void OnNetworkSpawn()
         {
             ChooseTrackDeferred();
@@ -2042,6 +2268,7 @@ namespace MuzikaGromche
 
         private void ChooseTrackDeferredDelegate(object sender, EventArgs e)
         {
+            SelectedTrackIndex = 0;
             ChooseTrackDeferred();
         }
 
@@ -2072,13 +2299,15 @@ namespace MuzikaGromche
         [ServerRpc]
         public void ChooseTrackServerRpc()
         {
-            var track = Plugin.ChooseTrack();
-            Debug.Log($"{nameof(MuzikaGromche)} ChooseTrackServerRpc {track.Name}");
-            SetTrackClientRpc(track.Name);
+            var selectableTrack = Plugin.ChooseTrack();
+            var audioTrack = selectableTrack.SelectTrack(SelectedTrackIndex);
+            Debug.Log($"{nameof(MuzikaGromche)} ChooseTrackServerRpc {selectableTrack.Name} #{SelectedTrackIndex} {audioTrack.Name}");
+            SetTrackClientRpc(audioTrack.Name);
+            SelectedTrackIndex += 1;
         }
     }
 
-    // farAudio is during windup, Start overrides popGoesTheWeaselTheme
+    // farAudio is during windup, Intro overrides popGoesTheWeaselTheme
     // creatureVoice is when popped, Loop overrides screamingSFX
     [HarmonyPatch(typeof(JesterAI))]
     static class JesterPatch
@@ -2109,7 +2338,7 @@ namespace MuzikaGromche
             };
             if (__instance.currentBehaviourStateIndex == 2 && __instance.previousState != 2)
             {
-                // If just popped out, then override farAudio so that vanilla logic does not stop the modded Start music.
+                // If just popped out, then override farAudio so that vanilla logic does not stop the modded Intro music.
                 // The game will stop farAudio it during its Update, so we temporarily set it to any other AudioSource
                 // which we don't care about stopping for now.
                 //
@@ -2146,7 +2375,7 @@ namespace MuzikaGromche
 
                 // Override popGoesTheWeaselTheme with Start audio
                 __instance.farAudio.maxDistance = Plugin.AudioMaxDistance;
-                __instance.farAudio.clip = Plugin.CurrentTrack.LoadedStart;
+                __instance.farAudio.clip = Plugin.CurrentTrack.LoadedIntro;
                 __instance.farAudio.loop = false;
                 if (Config.ShouldSkipWindingPhase)
                 {
@@ -2161,13 +2390,15 @@ namespace MuzikaGromche
                 }
                 __instance.farAudio.Play();
 
-                Debug.Log($"{nameof(MuzikaGromche)} Playing start music: maxDistance: {__instance.farAudio.maxDistance}, minDistance: {__instance.farAudio.minDistance}, volume: {__instance.farAudio.volume}, spread: {__instance.farAudio.spread}");
+                Debug.Log($"{nameof(MuzikaGromche)} Playing Intro music: maxDistance: {__instance.farAudio.maxDistance}, minDistance: {__instance.farAudio.minDistance}, volume: {__instance.farAudio.volume}, spread: {__instance.farAudio.spread}");
             }
 
             if (__instance.previousState != 2 && __state.previousState == 2)
             {
                 Plugin.ResetLightColor();
                 DiscoBallManager.Disable();
+                // Rotate track groups
+                __instance.GetComponent<MuzikaGromcheJesterNetworkBehaviour>()?.ChooseTrackServerRpc();
             }
 
             if (__instance.previousState == 2 && __state.previousState != 2)
@@ -2176,22 +2407,22 @@ namespace MuzikaGromche
                 __instance.farAudio = __state.farAudio;
 
                 var time = __instance.farAudio.time;
-                var delay = Plugin.CurrentTrack.LoadedStart.length - time;
+                var delay = Plugin.CurrentTrack.LoadedIntro.length - time;
 
-                // Override screamingSFX with Loop, delayed by the remaining time of the Start audio
+                // Override screamingSFX with Loop, delayed by the remaining time of the Intro audio
                 __instance.creatureVoice.Stop();
                 __instance.creatureVoice.maxDistance = Plugin.AudioMaxDistance;
                 __instance.creatureVoice.clip = Plugin.CurrentTrack.LoadedLoop;
                 __instance.creatureVoice.PlayDelayed(delay);
 
-                Debug.Log($"{nameof(MuzikaGromche)} Start length: {Plugin.CurrentTrack.LoadedStart.length}; played time: {time}");
+                Debug.Log($"{nameof(MuzikaGromche)} Intro length: {Plugin.CurrentTrack.LoadedIntro.length}; played time: {time}");
                 Debug.Log($"{nameof(MuzikaGromche)} Playing loop music: maxDistance: {__instance.creatureVoice.maxDistance}, minDistance: {__instance.creatureVoice.minDistance}, volume: {__instance.creatureVoice.volume}, spread: {__instance.creatureVoice.spread}, in seconds: {delay}");
             }
 
             // Manage the timeline: switch color of the lights according to the current playback/beat position.
             if ((__instance.previousState == 1 || __instance.previousState == 2) && Plugin.BeatTimeState is { } beatTimeState)
             {
-                var events = beatTimeState.Update(start: __instance.farAudio, loop: __instance.creatureVoice);
+                var events = beatTimeState.Update(intro: __instance.farAudio, loop: __instance.creatureVoice);
                 foreach (var ev in events)
                 {
                     switch (ev)

manifest.json

@@ -1,6 +1,6 @@
 {
     "name": "MuzikaGromche",
-    "version_number": "1337.420.69",
+    "version_number": "1337.420.9001",
     "author": "Ratijas",
     "description": "Add some content to your inverse teleporter experience on Titan!",
     "website_url": "https://git.vilunov.me/ratijas/muzika-gromche",