Add pause/resume API

BaboonAPI/BaboonAPI.fsproj

@@ -69,7 +69,7 @@
     <ItemGroup>
         <PackageReference Include="BepInEx.Core" Version="5.*" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-        <PackageReference Include="TromboneChamp.GameLibs" Version="1.9.3" />
+        <PackageReference Include="TromboneChamp.GameLibs" Version="1.11.0-beta.1" />
     </ItemGroup>
 
     <ItemGroup>

BaboonAPI/Library.fs

@@ -46,6 +46,7 @@ type BaboonPlugin() =
                     typeof<TrackTitlePatches>
                     typeof<LoaderPatch>
                     typeof<GameControllerPatch>
+                    typeof<PausePatches>
                     typeof<SaverLoaderPatch>
                     typeof<TrackScorePatches>
                 ] |> List.iter harmony.PatchAll

BaboonAPI/api/TrackRegistry.fs

@@ -60,6 +60,23 @@ type public TromboneTrack =
     /// Whether this track is visible in the track selector
     abstract IsVisible: unit -> bool
 
+/// <summary>
+/// LoadedTromboneTrack extension for pause/resume functionality
+/// </summary>
+/// <remarks>
+/// Implementing this class allows you to react to the pause and resume 
+/// </remarks>
+type public PauseAware =
+    /// <summary>Can this track be resumed after a pause?</summary>
+    /// <remarks>If false, the curtains will close on pause.</remarks>
+    abstract CanResume: bool
+
+    /// Called when this track is paused. Use this to pause backgrounds or other features.
+    abstract OnPause: unit -> unit
+
+    /// Called when this track is resumed (after the countdown).
+    abstract OnResume: unit -> unit
+
 /// <summary>
 /// Event-based API for registering new tracks.
 /// </summary>

BaboonAPI/patch/BaseTracksLoaderPatch.fs

@@ -25,6 +25,13 @@ type internal BaseGameLoadedTrack(trackref: string, bundle: AssetBundle) =
             ()
 
         member this.trackref = trackref
+
+    interface PauseAware with
+        member this.CanResume = true
+
+        member this.OnPause() = ()
+
+        member this.OnResume() = ()
 
 type internal BaseGameTrack(data: string[]) =
     interface TromboneTrack with

BaboonAPI/patch/GameControllerPatch.fs

@@ -57,6 +57,12 @@ type private GameControllerExtension() =
         // Start background task next frame
         instance.StartCoroutine("loadAssetBundleResources") |> ignore
 
+        // Set up pause/resume functionality
+        instance.track_is_pausable <-
+            match l with
+            | :? PauseAware as pauseable -> pauseable.CanResume // `track_is_pausable` actually controls resuming
+            | _ -> false
+
         // Usually this should be cleaned up by Unload, but let's just make sure...
         match loadedTrack with
         | Some prev ->
@@ -70,6 +76,18 @@ type private GameControllerExtension() =
 
     static member LoadChart(trackref: string): SavedLevel =
         (TrackAccessor.fetchTrack trackref).LoadChart()
+
+    static member PauseTrack() =
+        match loadedTrack with
+        | Some (:? PauseAware as pa) ->
+            pa.OnPause()
+        | _ -> ()
+
+    static member ResumeTrack() =
+        match loadedTrack with
+        | Some (:? PauseAware as pa) ->
+            pa.OnResume()
+        | _ -> ()
 
     static member Unload() =
         match loadedTrack with
@@ -150,3 +168,17 @@ type GameControllerPatch() =
         ___mySoundAssetBundle <- null
 
         false
+
+[<HarmonyPatch>]
+type PausePatches() =
+    [<HarmonyPostfix>]
+    [<HarmonyPatch(typeof<PauseCanvasController>, "showPausePanel")>]
+    static member PausePostfix(__instance: PauseCanvasController) =
+        GameControllerExtension.PauseTrack()
+        ()
+
+    [<HarmonyPostfix>]
+    [<HarmonyPatch(typeof<PauseCanvasController>, "resumeFromPause")>]
+    static member ResumePostfix(__instance: PauseCanvasController) =
+        GameControllerExtension.ResumeTrack()
+        ()