Fix Unnatural Corpse desync

Source/Client/Patches/Anomaly.cs

@@ -0,0 +1,39 @@
+using System.Collections.Generic;
+using System.Reflection;
+using System.Reflection.Emit;
+using HarmonyLib;
+using RimWorld;
+using Verse;
+
+namespace Multiplayer.Client.Patches
+{
+    [HarmonyPatch(typeof(AnomalyUtility), nameof(AnomalyUtility.TryGetNearbyUnseenCell))]
+    static class AnomalyUtility_TryGetNearbyUnseenCell
+    {
+        // Discards the result from CurrentViewRect and calls EmptyCellRect
+        static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> insts)
+        {
+            var target = AccessTools.PropertyGetter(typeof(CameraDriver), nameof(CameraDriver.CurrentViewRect));
+            var replace = AccessTools.Method(typeof(AnomalyUtility_TryGetNearbyUnseenCell), nameof(EmptyCellRect));
+
+            foreach (var inst in insts)
+            {
+                yield return inst;
+
+                if (inst.operand as MethodInfo == target)
+                {
+                    yield return new CodeInstruction(OpCodes.Pop);
+                    yield return new CodeInstruction(OpCodes.Call, replace);
+                }
+            }
+        }
+
+        static CellRect EmptyCellRect()
+        {
+            return Multiplayer.Client != null ? CellRect.Empty : Find.CameraDriver.CurrentViewRect;
+        }
+
+        static void Prefix() => Rand.PushState(Find.TickManager.TicksAbs);
+        static void Postfix() => Rand.PopState();
+    }
+}