managed to actually inject something woooo

MetalButtplug.csproj

@@ -12,6 +12,7 @@
       https://nuget.bepinex.dev/v3/index.json
     </RestoreAdditionalProjectSources>
     <RootNamespace>MetalButtplug</RootNamespace>
+    <NoWarn>$(NoWarn);NU1603</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>

Patches/TestPatch.cs

@@ -0,0 +1,13 @@
+using HarmonyLib;
+
+namespace MetalButtplug.Patches;
+
+[HarmonyPatch(typeof(BeatSequencer))]
+[HarmonyPatch("UpdateBeat")]
+class TestPatch {
+    static void Prefix(BeatStatusProvider beatStatus) {
+        if (beatStatus.BeatFlags.HasFlag(BeatFlags.Quarter)) {
+            Plugin.Log.LogInfo("Quarter beat: " + beatStatus.GetBeatProgress(BeatType.Quarter));
+        }
+    }
+}

Plugin.cs

@@ -1,4 +1,5 @@
 using BepInEx;
+using BepInEx.Logging;
 using BepInEx.Unity.IL2CPP;
 using HarmonyLib;
 
@@ -6,9 +7,13 @@ namespace MetalButtplug;
 
 [BepInPlugin(MyPluginInfo.PLUGIN_GUID, MyPluginInfo.PLUGIN_NAME, MyPluginInfo.PLUGIN_VERSION)]
 public class Plugin : BasePlugin {
+    Harmony harmony = new Harmony(MyPluginInfo.PLUGIN_GUID);
+    internal static new ManualLogSource Log;
     public override void Load() {
-        // Plugin startup logic
+        Plugin.Log = base.Log;
+
         Log.LogInfo($"Plugin {MyPluginInfo.PLUGIN_GUID} is loaded!");
         Log.LogInfo("GAY SEX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+        harmony.PatchAll(typeof(Patches.TestPatch));
     }
 }