.gitignore

@@ -481,3 +481,6 @@ $RECYCLE.BIN/
 
 # Vim temporary swap files
 *.swp
+
+# Cache folders used in disk caching
+Cache/*

Source/PerformanceFish/Defs/RecipeDefCaching.cs

@@ -56,8 +56,8 @@ public sealed class RecipeDefCaching : ClassWithFishPatches
 		{
 			private int _defDatabaseVersion = -2;
 			private int _defRecipeUsersVersion = -2;
-			private RecipeDef _def;
+			private RecipeDef? _def;
-			public List<ThingDef> RecipeUsers;
+			public List<ThingDef> RecipeUsers = [];
 
 			public void Update(RecipeDef instance, IEnumerable<ThingDef> result)
 			{
@@ -81,7 +81,7 @@ public sealed class RecipeDefCaching : ClassWithFishPatches
 				[MethodImpl(MethodImplOptions.AggressiveInlining)]
 				get
 					=> _defDatabaseVersion != DefDatabase<ThingDef>.defsList._version
-						|| _defRecipeUsersVersion != (_def.recipeUsers?._version ?? 0);
+						|| _defRecipeUsersVersion != (_def?.recipeUsers?._version ?? 0);
 			}
 		}
 	}

Source/PerformanceFish/GenLocalDateCaching.cs

@@ -19,45 +19,17 @@ public sealed class GenLocalDateCaching : ClassWithFishPatches
 			+ "optimization, but yields accurate results instead of a placeholder value to avoid issues";
 
 		public override Delegate TargetMethodGroup { get; } = (Func<Thing, int>)GenLocalDate.DayTick;
-		public override int TranspilerMethodPriority => Priority.First;
+		public override int PrefixMethodPriority => Priority.First;
 
-		public static CodeInstructions Transpiler(CodeInstructions codes, MethodBase method, ILGenerator generator)
+		[MethodImpl(MethodImplOptions.AggressiveInlining)]
-			//=> Reflection.GetCodeInstructions(Replacement);
+		public static bool Prefix(Thing thing, ref int __result)
 		{
-			var labelToStartOfMethod = generator.DefineLabel();
+			if (thing.TryGetMap() is not { } map)
-			codes.First().labels.Add(labelToStartOfMethod);
+				return true;
 
-			yield return FishTranspiler.Argument(method, "thing");
+			__result = GenLocalDate.DayTick(map);
-			yield return FishTranspiler.Field(typeof(Thing), nameof(Thing.mapIndexOrState));
+			return false;
-			yield return FishTranspiler.Constant(0);
-			yield return FishTranspiler.IfLessThan(labelToStartOfMethod);
-
-			yield return FishTranspiler.Field(typeof(Current), nameof(Current.gameInt));
-			yield return FishTranspiler.Field(typeof(Game), nameof(Game.maps));
-			yield return FishTranspiler.Argument(method, "thing");
-			yield return FishTranspiler.Field(typeof(Thing), nameof(Thing.mapIndexOrState));
-			yield return FishTranspiler.Call(typeof(List<Map>), "get_Item");
-			yield return FishTranspiler.Call<Func<Map, int>>(GenLocalDate.DayTick);
-			yield return FishTranspiler.Return;
-
-			foreach (var code in codes)
-				yield return code;
 		}
-
-		//[MethodImpl(MethodImplOptions.AggressiveInlining)]
-		//public static int Replacement(Thing thing)
-		//	=> thing.mapIndexOrState < 0 ? GenDate.DayTick(GenTicks.TicksAbs, GenLocalDate.LongitudeForDate(thing))
-		//	: GenLocalDate.DayTick(Current.gameInt.maps[thing.mapIndexOrState]);
-
-		//[MethodImpl(MethodImplOptions.AggressiveInlining)]
-		//public static bool Prefix(Thing thing, ref int __result)
-		//{
-		//	if (thing.mapIndexOrState < 0)
-		//		return true;
-
-		//	__result = GenLocalDate.DayTick(Current.gameInt.maps[thing.mapIndexOrState]);
-		//	return false;
-		//}
 	}
 
 	public sealed class DayTickByMap_Patch : FishPatch

Source/PerformanceFish/GeneTrackerOptimization.cs

@@ -98,10 +98,59 @@ public sealed class GeneTrackerOptimization : ClassWithFishPrepatches
 		private static bool IsSkippableType(Type type) => _skippableTypes.GetOrAdd(type);
 
 		private static bool ComputeIsSkippableType(Type type)
-			=> type == typeof(Gene)
+		{
-				|| type.GetMethod(nameof(Gene.Tick), global::System.Reflection.BindingFlags.Instance
+			if (type == typeof(Gene))
-					| global::System.Reflection.BindingFlags.Public
+				return true;
-					| global::System.Reflection.BindingFlags.NonPublic
+
-					| global::System.Reflection.BindingFlags.DeclaredOnly, null, Type.EmptyTypes, null) == null;
+			var tickMethod = type.GetMethod(nameof(Gene.Tick), global::System.Reflection.BindingFlags.Instance
+				| global::System.Reflection.BindingFlags.Public
+				| global::System.Reflection.BindingFlags.NonPublic, null, Type.EmptyTypes, null);
+			var tickIntervalMethod = type.GetMethod(nameof(Gene.TickInterval),
+				global::System.Reflection.BindingFlags.Instance
+				| global::System.Reflection.BindingFlags.Public
+				| global::System.Reflection.BindingFlags.NonPublic, null, [typeof(int)], null);
+
+			return tickMethod?.DeclaringType == typeof(Gene)
+				&& tickIntervalMethod?.DeclaringType == typeof(Gene);
+		}
+	}
+
+	public sealed class GeneTrackerTickIntervalPatch : FishPrepatch
+	{
+		// i am iffy about this
+		public override string? Description { get; }
+			= "Every pawn has a gene tracker, which is responsible for ticking each of their genes. Normally it ticks "
+			+ "all of them equally, including those don't change or affect anything through ticking, like skin colors "
+			+ "or basic stat modifiers. This patch improves the gene tracker to determine genes that need ticking in "
+			+ "advance, cache the list of them, and only tick those, skipping all the others.";
+
+		public override MethodBase TargetMethodBase { get; }
+			= AccessTools.Method(typeof(Pawn_GeneTracker), nameof(Pawn_GeneTracker.GeneTrackerTickInterval));
+
+		public override void Transpiler(ILProcessor ilProcessor, ModuleDefinition module)
+			=> ilProcessor.ReplaceBodyWith(GeneTrackerTickInterval);
+
+		public static void GeneTrackerTickInterval(Pawn_GeneTracker instance, int delta)
+		{
+			if (!ModLister.BiotechInstalled)
+				return;
+
+			var genesToTick = instance.GenesToTick();
+			if (GeneTrackerTickPatch.Dirty(instance, genesToTick))
+				GeneTrackerTickPatch.Update(instance, genesToTick);
+
+			for (var i = genesToTick.Count - 1; i >= 0; i--)
+			{
+				if (genesToTick[i].Active)
+					genesToTick[i].TickInterval(delta);
+			}
+
+			if (instance.pawn.IsSpawned()
+				&& instance.Xenotype != XenotypeDefOf.Baseliner
+				&& instance.pawn.IsHashIntervalTick(300, delta))
+			{
+				LessonAutoActivator.TeachOpportunity(ConceptDefOf.GenesAndXenotypes, OpportunityType.Important);
+			}
+		}
 	}
 }

Source/PerformanceFish/Hauling/LwmCompCacheValue.cs

@@ -3,7 +3,7 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
-global using LwmCompCache = PerformanceFish.Cache.ByReference<Verse.Thing, PerformanceFish.Hauling.LwmCompCacheValue>;
+global using LwmCompCache = PerformanceFish.Cache.ByReference<Verse.ThingDef, PerformanceFish.Hauling.LwmCompCacheValue>;
 
 namespace PerformanceFish.Hauling;
 
@@ -11,9 +11,9 @@ public record struct LwmCompCacheValue
 {
 	public CompProperties? CompProperties;
 
-	public static CompProperties? TryGetLwmProps(Thing slotGroupParent)
+	public static CompProperties? TryGetLwmProps(ThingDef thingDef)
 		=> ModCompatibility.Types.LWM.CompProperties != null
-			? slotGroupParent.def.comps?.Find(static props
+			? thingDef.comps?.Find(static props
 				=> props.GetType() == ModCompatibility.Types.LWM.CompProperties)
 			: null;
 

Source/PerformanceFish/Hauling/RimfactoryExtensionCacheValue.cs

@@ -4,7 +4,7 @@
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 global using RimfactoryExtensionCache
-	= PerformanceFish.Cache.ByReference<Verse.Thing, PerformanceFish.Hauling.RimfactoryExtensionCacheValue>;
+	= PerformanceFish.Cache.ByReference<Verse.ThingDef, PerformanceFish.Hauling.RimfactoryExtensionCacheValue>;
 using RimfactoryTypes = PerformanceFish.ModCompatibility.Types.Rimfactory;
 
 namespace PerformanceFish.Hauling;
@@ -13,17 +13,17 @@ public record struct RimfactoryExtensionCacheValue
 {
 	public DefModExtension? ModExtension;
 
-	public static DefModExtension? TryGetExtension(Thing slotGroupParent)
+	public static DefModExtension? TryGetExtension(ThingDef thingDef)
 		=> RimfactoryTypes.ModExtension != null
-			? slotGroupParent.def.modExtensions?.Find(_extensionPredicate)
+			? thingDef.modExtensions?.Find(_extensionPredicate)
 			: null;
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
-	public static bool HasExtension(Thing slotGroupParent)
+	public static bool HasExtension(Thing thing)
-		=> RimfactoryTypes.ModExtension != null && TestExtension(slotGroupParent);
+		=> RimfactoryTypes.ModExtension != null && TestExtension(thing.def);
 
 	[MethodImpl(MethodImplOptions.NoInlining)]
-	private static bool TestExtension(Thing slotGroupParent) => slotGroupParent.TryGetRimfactoryExtension() != null;
+	private static bool TestExtension(ThingDef thingDef) => TryGetExtension(thingDef) != null;
 
 	static RimfactoryExtensionCacheValue() => EnsureInitialized();
 

Source/PerformanceFish/Hauling/StorageExtensions.cs

@@ -24,11 +24,11 @@ public static class StorageExtensions
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
 	public static CompProperties? TryGetLwmCompProperties(this Thing thing)
-		=> LwmCompCache.GetOrAdd(thing).CompProperties;
+		=> LwmCompCache.GetOrAdd(thing.def).CompProperties;
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
 	public static DefModExtension? TryGetRimfactoryExtension(this Thing thing)
-		=> RimfactoryExtensionCache.GetOrAdd(thing).ModExtension;
+		=> RimfactoryExtensionCache.GetOrAdd(thing.def).ModExtension;
 
 	public static int GetTotalSlots(this SlotGroup slotGroup) => slotGroup.GetTotalSlots(slotGroup.CellsList.Count);
 	

Source/PerformanceFish/JobSystem/JobGiver_HaulOptimization.cs

@@ -3,6 +3,7 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
+using System.Linq;
 using PerformanceFish.ModCompatibility;
 
 namespace PerformanceFish.JobSystem;
@@ -41,11 +42,19 @@ public sealed class JobGiver_HaulOptimization : ClassWithFishPatches
 			}
 		}
 
-		public static List<Thing> SortedThingsPotentiallyNeedingHauling(List<Thing> things, Pawn pawn)
+		public static ICollection<Thing> SortedThingsPotentiallyNeedingHauling(ICollection<Thing> things, Pawn pawn)
 		{
 			((ThingPositionComparer)_comparer.Target).rootCell = pawn.Position;
-			things.Sort(_comparer);
+
-			return things;
+			if (things is List<Thing> list)
+			{
+				list.Sort(_comparer);
+				return list;
+			}
+
+			var sortedThings = things.ToList();
+			sortedThings.Sort(_comparer);
+			return sortedThings;
 		}
 
 		private static Comparison<Thing> _comparer = new ThingPositionComparer().Compare;

Source/PerformanceFish/Listers/Things.cs

@@ -12,6 +12,9 @@ namespace PerformanceFish.Listers;
 
 public sealed class ThingsPrepatches : ClassWithFishPrepatches
 {
+	private static readonly AccessTools.FieldRef<ListerThings, List<IHaulSource>> _haulSources
+		= AccessTools.FieldRefAccess<ListerThings, List<IHaulSource>>("haulSources");
+
 	public sealed class AddPatch : FishPrepatch
 	{
 		public override string? Description { get; }
@@ -31,6 +34,8 @@ public sealed class ThingsPrepatches : ClassWithFishPrepatches
 			lock (__instance.LockObject())
 			{
 				AddToDefList(__instance, t);
+				if (t is IHaulSource haulSource)
+					_haulSources(__instance).Add(haulSource);
 
 				var allGroups = ThingListGroupHelper.AllGroups;
 				foreach (var thingRequestGroup in allGroups)
@@ -74,6 +79,8 @@ public sealed class ThingsPrepatches : ClassWithFishPrepatches
 			lock (__instance.LockObject())
 			{
 				RemoveFromDefList(__instance, t);
+				if (t is IHaulSource haulSource)
+					_haulSources(__instance).Remove(haulSource);
 
 				var allGroups = ThingListGroupHelper.AllGroups;
 				for (var i = 0; i < allGroups.Length; i++)
@@ -268,6 +275,7 @@ public sealed class ThingsPrepatches : ClassWithFishPrepatches
 				
 				__instance.IndexMapByDef().Clear();
 				__instance.IndexMapByGroup().Clear();
+				_haulSources(__instance).Clear();
 				ClearTypeLists(__instance);
 			}
 			

Source/PerformanceFish/LogPatches.cs

@@ -59,15 +59,16 @@ public sealed class LogPatches : ClassWithFishPrepatches
 		public static void InsertEarlyMessages()
 		{
 			var unhandledMessages = Log.UnhandledMessages;
-			if (unhandledMessages is null)
-				Debug.LogError("Message queue is null");
 
 			Log.Ready = true;
 
 			Verse.Log.messageQueue.Enqueue(new(LogMessageType.Message, PERFORMANCE_FISH_WELCOME_MESSAGE,
 				PERFORMANCE_FISH_WELCOME_STACKTRACE));
 
-			while (unhandledMessages!.TryDequeue(out var message))
+			if (unhandledMessages is null)
+				return;
+
+			while (unhandledMessages.TryDequeue(out var message))
 			{
 				try
 				{

Source/PerformanceFish/Patching/FishPatch.cs

@@ -193,8 +193,6 @@ public abstract class FishPatch : SingletonFactory<FishPatch>, IExposable, IHasD
 		Patched = true;
 		foreach (var method in TargetMethodInfos)
 		{
-			DebugLog.Message($"Performance Fish is applying {GetType().Name} on {method.FullDescription()}");
-
 			try
 			{
 				if (IsBenchmarking)
@@ -232,6 +230,7 @@ public abstract class FishPatch : SingletonFactory<FishPatch>, IExposable, IHasD
 							finalizer: TryMakeHarmonyMethod(FinalizerMethodInfo, FinalizerMethodPriority)));
 					}
 				}
+
 			}
 			catch (Exception e)
 			{
@@ -291,6 +290,9 @@ public abstract class FishPatch : SingletonFactory<FishPatch>, IExposable, IHasD
 	private MethodInfo? TryGetMethod(string nameCaseInsensitive, Predicate<MethodInfo>? predicate = null)
 		=> GetType().TryGetMethod(nameCaseInsensitive, predicate);
 
+	private static string GetTargetMethodName(MethodBase method)
+		=> $"{method.DeclaringType?.FullName ?? "<no-type>"}.{method.Name}";
+
 	private static int TryGetPriority(MethodInfo? info)
 		=> info?.TryGetAttribute<HarmonyPriority>()?.info.priority ?? Priority.Normal;
 	

Source/PerformanceFish/Planet/WorldObjectsOptimization.cs

@@ -17,6 +17,7 @@ public sealed class WorldObjectsOptimization : ClassWithFishPrepatches
 	{
 		private static FishTable<Type, bool> _skippableCompTypes = null!;
 		private static FishTable<Type, bool> _skippableWorldObjectTypes = null!;
+		private static readonly List<IThingHolder> _tmpThingHolders = [];
 
 		public override string? Description { get; }
 			= "The world objects holder is responsible for ticking every world object. This includes settlements, "
@@ -73,16 +74,44 @@ public sealed class WorldObjectsOptimization : ClassWithFishPrepatches
 
 		private static bool CanSkipWorldObjectTick(WorldObject worldObject)
 		{
-#if V1_6
+			return IsSkippableWorldObjectType(worldObject.GetType()) && !HasTickableContents(worldObject);
-			if (worldObject is IThingHolder)
+		}
+
+		private static bool HasTickableContents(WorldObject worldObject)
+		{
+			if (worldObject is not IThingHolder holder)
 				return false;
-#endif
+
-			return IsSkippableWorldObjectType(worldObject.GetType());
+			lock (_tmpThingHolders)
+			{
+				_tmpThingHolders.Clear();
+				_tmpThingHolders.Add(holder);
+				holder.GetChildHolders(_tmpThingHolders);
+
+				for (var i = 0; i < _tmpThingHolders.Count; i++)
+				{
+					var thingHolder = _tmpThingHolders[i];
+					if (thingHolder is IThingHolderTickable tickable && !tickable.ShouldTickContents)
+						continue;
+
+					var directlyHeldThings = thingHolder.GetDirectlyHeldThings();
+					if (directlyHeldThings?.Owner is not null and not Map and not Caravan)
+					{
+						_tmpThingHolders.Clear();
+						return true;
+					}
+				}
+
+				_tmpThingHolders.Clear();
+				return false;
+			}
 		}
 
 		private static bool CanSkipCompTick(WorldObject worldObject)
 		{
 			var comps = worldObject.comps;
+			if (comps.Count == 0)
+				return true;
 
 			for (var i = comps.Count; i-- > 0;)
 			{
@@ -92,8 +121,6 @@ public sealed class WorldObjectsOptimization : ClassWithFishPrepatches
 
 				if (!IsSkippableCompType(comp.GetType()))
 					return false;
-				
-				comp.CompTick();
 			}
 
 			return true;
@@ -106,10 +133,7 @@ public sealed class WorldObjectsOptimization : ClassWithFishPrepatches
 		private static Type?[]
 			_whitelistedTickingCompTypes =
 			[
-				typeof(WorldObjectComp),
+				typeof(WorldObjectComp)
-				typeof(FormCaravanComp),
-				typeof(TimedDetectionRaids),
-				typeof(EnterCooldownComp)
 			],
 			_whitelistedWorldObjectTypes =
 			[

Source/PerformanceFish/Prepatching/FishPrepatchExtensions.cs

@@ -13,8 +13,9 @@ public static class FishPrepatchExtensions
 	{
 		var prepatches = ToSortedList(allPrepatchClasses, true);
 		
-		foreach (var prepatch in prepatches)
+		for (var i = 0; i < prepatches.Count; i++)
 		{
+			var prepatch = prepatches[i];
 			if (!prepatch.Enabled)
 				continue;
 			
@@ -40,8 +41,9 @@ public static class FishPrepatchExtensions
 	{
 		var prepatches = ToSortedList(allPrepatchClasses, false);
 
-		foreach (var prepatch in prepatches)
+		for (var i = 0; i < prepatches.Count; i++)
 		{
+			var prepatch = prepatches[i];
 			if (!prepatch.IsActive)
 				continue;
 			
@@ -70,4 +72,5 @@ public static class FishPrepatchExtensions
 		prepatches.Sort(FishPrepatchBase.PriorityComparer);
 		return prepatches;
 	}
+
 }

Source/PerformanceFish/Rendering/TextureAtlasPatches.cs

@@ -0,0 +1,50 @@
+// Copyright (c) 2023 bradson
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+namespace PerformanceFish.Rendering;
+
+public sealed class TextureAtlasPatches : ClassWithFishPatches
+{
+	public sealed class StaticTextureAtlas_ApplyTextureCompression : FishPatch
+	{
+		public override string? Description { get; }
+			= "Routes texture atlas compression through the GPU path when compute shaders are available, "
+			+ "regardless of the VRAM threshold check in UnityData.ComputeShadersSupported. Prevents native "
+			+ "crashes in debug Mono builds.";
+
+		public override MethodBase TargetMethodInfo
+			=> AccessTools.DeclaredMethod(typeof(StaticTextureAtlas), "ApplyTextureCompression");
+
+		public static bool Prefix(StaticTextureAtlas __instance, bool noGpuCompressionSupport)
+		{
+			if (!noGpuCompressionSupport || !SystemInfo.supportsComputeShaders)
+				return true;
+
+			if (__instance.ColorTexture != null)
+			{
+				var name = __instance.ColorTexture.name;
+				var compressed = StaticTextureAtlas.FastCompressDXT(__instance.ColorTexture, deleteOriginal: true);
+				compressed.name = name;
+				_colorTextureField.SetValue(__instance, compressed);
+			}
+
+			if (__instance.MaskTexture != null)
+			{
+				var name = __instance.MaskTexture.name;
+				var compressed = StaticTextureAtlas.FastCompressDXT(__instance.MaskTexture, deleteOriginal: true);
+				compressed.name = name;
+				_maskTextureField.SetValue(__instance, compressed);
+			}
+
+			return false;
+		}
+
+		private static readonly FieldInfo _colorTextureField
+			= AccessTools.DeclaredField(typeof(StaticTextureAtlas), "colorTexture");
+
+		private static readonly FieldInfo _maskTextureField
+			= AccessTools.DeclaredField(typeof(StaticTextureAtlas), "maskTexture");
+	}
+}

Source/PerformanceFish/Rendering/TextureLoadingPatches.cs

@@ -93,7 +93,7 @@ public sealed class TextureLoadingPatches : ClassWithFishPrepatches
 				var data = file.ReadAllBytes();
 				texture2D = new(2, 2, TextureFormat.Alpha8, true);
 				texture2D.LoadImage(data);
-				FixMipMapsIfNeeded(texture2D, data, file);
+				FixMipMapsIfNeeded(ref texture2D, data, file);
 			}
 
 			if (!isDds && Prefs.TextureCompression)
@@ -120,11 +120,11 @@ public sealed class TextureLoadingPatches : ClassWithFishPrepatches
 
 			var texture2D = new Texture2D(2, 2, TextureFormat.Alpha8, true);
 			texture2D.LoadImage(data);
-			FixMipMapsIfNeeded(texture2D, data, file);
+			FixMipMapsIfNeeded(ref texture2D, data, file);
 			return texture2D;
 		}
 
-		public static void FixMipMapsIfNeeded(Texture2D texture2D, byte[] data, VirtualFile file)
+		public static void FixMipMapsIfNeeded(ref Texture2D texture2D, byte[] data, VirtualFile file)
 		{
 			if (((texture2D.width & 3) == 0) & ((texture2D.height & 3) == 0))
 				return;

Source/PerformanceFish/System/ReflectionCaching.cs

@@ -10,6 +10,7 @@ using System.Security;
 using System.Threading.Tasks;
 using PerformanceFish.Cache;
 using PerformanceFish.ModCompatibility;
+#if false
 using ConstructorInfoCache
 	= PerformanceFish.Cache.ByReference<System.RuntimeTypeHandle, System.Reflection.BindingFlags,
 		PerformanceFish.System.ReflectionCaching.RecordArray<System.Type>,
@@ -56,11 +57,13 @@ using ActivatorCache
 using CustomAttributeCache
 	= PerformanceFish.Cache.ByReferenceClassic<System.Reflection.ICustomAttributeProvider, System.RuntimeTypeHandle, bool,
 		PerformanceFish.System.ReflectionCaching.MonoCustomAttrs.CustomAttributeCacheValue>;
+#endif
 
 namespace PerformanceFish.System;
 
 public sealed class ReflectionCaching : ClassWithFishPatches
 {
+#if false
 	static ReflectionCaching() // necessary to prevent recursion between patches and function pointer creation
 	{
 		try
@@ -86,6 +89,7 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 				ex}");
 		}
 	}
+#endif
 
 	public record struct StateAndFlags
 	{
@@ -93,6 +97,7 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 		public BindingFlags Flags;
 	}
 
+#if false
 	public sealed class TypePatches
 	{
 		public sealed class GetField_Patch : FishPatch
@@ -513,9 +518,17 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 				var key = new CustomAttributeCache(obj, attributeType.TypeHandle, inherit);
 				__state = new() { Key = key };
 
-				if (TryGetCachedAttributes(ref key, out __result))
+				var cacheLookup = TryGetCachedAttributes(ref key, out __result);
+
+				if (cacheLookup == CustomAttributeCacheLookup.Hit)
 					return false;
 
+				if (cacheLookup == CustomAttributeCacheLookup.InProgress)
+				{
+					__result = null;
+					return true;
+				}
+
 				MarkInProgress(ref key);
 				__state.ShouldStore = true;
 				__result = null;
@@ -523,14 +536,17 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 			}
 
 			[MethodImpl(MethodImplOptions.NoInlining)]
-			private static bool TryGetCachedAttributes(ref CustomAttributeCache key, out object[]? result)
+			private static CustomAttributeCacheLookup TryGetCachedAttributes(ref CustomAttributeCache key,
+				out object[]? result)
 			{
 				lock (_lock)
 				{
-					if (TryUseCache(CustomAttributeCache.Get, ref key, out result))
+					var localLookup = TryUseCache(CustomAttributeCache.Get, ref key, out result);
-						return true;
+					if (localLookup != CustomAttributeCacheLookup.Miss)
+						return localLookup;
 
-					if (TryUseCache(CustomAttributeCache.GetDirectly, ref key, out var centralResult))
+					var centralLookup = TryUseCache(CustomAttributeCache.GetDirectly, ref key, out var centralResult);
+					if (centralLookup == CustomAttributeCacheLookup.Hit)
 					{
 						result = centralResult;
 						CustomAttributeCache.Get[key] = new()
@@ -538,12 +554,15 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 							Attributes = centralResult,
 							Status = CustomAttributeCacheStatus.Completed
 						};
-						return true;
+						return CustomAttributeCacheLookup.Hit;
 					}
+
+					if (centralLookup == CustomAttributeCacheLookup.InProgress)
+						return CustomAttributeCacheLookup.InProgress;
 				}
 
 				result = null;
-				return false;
+				return CustomAttributeCacheLookup.Miss;
 			}
 
 			[MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -566,27 +585,28 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 			}
 
 			[MethodImpl(MethodImplOptions.NoInlining)]
-			private static bool TryUseCache(Dictionary<CustomAttributeCache, CustomAttributeCacheValue> cache,
+			private static CustomAttributeCacheLookup TryUseCache(
+				Dictionary<CustomAttributeCache, CustomAttributeCacheValue> cache,
 				ref CustomAttributeCache key, out object[]? result)
 			{
 				if (!cache.TryGetValue(key, out var value))
 				{
 					result = null;
-					return false;
+					return CustomAttributeCacheLookup.Miss;
 				}
 
 				switch (value.Status)
 				{
 				case CustomAttributeCacheStatus.Completed:
 					result = value.Attributes;
-					return true;
+					return CustomAttributeCacheLookup.Hit;
 				case CustomAttributeCacheStatus.InProgress:
 					LogInProgress(ref key);
 					result = null;
-					return false;
+					return CustomAttributeCacheLookup.InProgress;
 				default:
 					result = null;
-					return false;
+					return CustomAttributeCacheLookup.Miss;
 				}
 			}
 
@@ -666,6 +686,13 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 			InProgress,
 			Completed
 		}
+
+		private enum CustomAttributeCacheLookup : byte
+		{
+			Miss,
+			Hit,
+			InProgress
+		}
 	}
 
 	public record struct RecordArray<T>
@@ -854,9 +881,11 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 			//	Log.Message(types.ToStringSafeEnumerable());
 			//}
 
-			public override MethodBase TargetMethodInfo { get; }
+			public override MethodBase? TargetMethodInfo { get; }
-				= AccessTools.DeclaredMethod(AccessTools.TypeByName("System.Reflection.RuntimeFieldInfo"),
+				= AccessTools.DeclaredMethod(
-					nameof(FieldInfo.GetValue), [typeof(object)])!;
+					AccessTools.TypeByName("System.Reflection.RuntimeFieldInfo")
+					?? AccessTools.TypeByName("System.Reflection.MonoField"),
+					nameof(FieldInfo.GetValue), [typeof(object)]);
 
 			[MethodImpl(MethodImplOptions.AggressiveInlining)]
 			public static bool Prefix(FieldInfo __instance, object? obj, ref object? __result)
@@ -1285,4 +1314,5 @@ public sealed class ReflectionCaching : ClassWithFishPatches
 		// populated with dynamic methods by MethodBasePatches.MakeInvokeDelegate, MakeGetterDelegate and
 		// MakeSetterDelegate
 	}
+#endif
 }

Source/PerformanceFish/Utility/MiscExtensions.cs

@@ -101,7 +101,10 @@ public static class MiscExtensions
 
 	public static Map? TryGetMapHeld(this Thing thing)
 	{
-		var maps = Current.Game.Maps;
+		var maps = Find.Maps;
+		if (maps == null)
+			return thing.ParentHolder is { } rootHolder ? ThingOwnerUtility.GetRootMap(rootHolder) : null;
+
 		var mapIndex = (uint)thing.mapIndexOrState;
 
 		return mapIndex < (uint)maps.Count
@@ -114,7 +117,10 @@ public static class MiscExtensions
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
 	public static Map? TryGetMap(this Thing thing)
 	{
-		var maps = Current.Game.Maps;
+		var maps = Find.Maps;
+		if (maps == null)
+			return null;
+
 		var mapIndex = (uint)thing.mapIndexOrState;
 		
 		return mapIndex < (uint)maps.Count ? maps[(int)mapIndex] : null;
@@ -127,7 +133,18 @@ public static class MiscExtensions
 	public static Map GetMap(this Region region) => Current.Game.Maps[region.mapIndex];
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
-	public static bool IsSpawned(this Thing thing) => (uint)thing.mapIndexOrState < (uint)Current.Game.Maps.Count;
+	public static bool IsSpawned(this Thing thing)
+	{
+		var maps = Find.Maps;
+		if (thing.mapIndexOrState < 0 || maps == null)
+			return false;
+
+		if (thing.mapIndexOrState < maps.Count)
+			return true;
+
+		Verse.Log.ErrorOnce($"Thing {thing.ThingID} is associated with invalid map index {thing.mapIndexOrState}", 64664487);
+		return false;
+	}
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
 	public static int GetLoadID(this Bill bill) => bill.loadID;