zc6

Source/WulaFallenEmpire/HarmonyPatches/DialogEnterPortal_MapPatch.cs

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+using HarmonyLib;
+using RimWorld;
+using Verse;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Reflection.Emit;
+
+namespace WulaFallenEmpire
+{
+    [HarmonyPatch(typeof(Dialog_EnterPortal), "CalculateAndRecacheTransferables")]
+    public static class DialogEnterPortal_CalculateAndRecacheTransferables_Patch
+    {
+        // Transpiler 负责修改方法的 IL 代码
+        public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
+        {
+            var codes = new List<CodeInstruction>(instructions);
+            // 找到 MapPortal.Map 属性的 getter 方法
+            var mapPropertyGetter = AccessTools.PropertyGetter(typeof(MapPortal), "Map");
+            // 找到我们自定义的静态方法，它将返回正确的 Map
+            var getShuttleMapMethod = AccessTools.Method(typeof(DialogEnterPortal_CalculateAndRecacheTransferables_Patch), nameof(GetShuttleMap));
+
+            for (int i = 0; i < codes.Count; i++)
+            {
+                // 查找对 MapPortal.Map 的 get 访问
+                if (codes[i].opcode == OpCodes.Callvirt && codes[i].operand is MethodInfo method && method == mapPropertyGetter)
+                {
+                    // 替换为调用我们的静态方法
+                    yield return new CodeInstruction(OpCodes.Call, getShuttleMapMethod);
+                }
+                else
+                {
+                    yield return codes[i];
+                }
+            }
+        }
+
+        // 这个静态方法将由 Transpiler 注入，用于返回正确的 Map
+        // 参数 portalInstance 是原始方法中对 MapPortal 实例的引用
+        public static Map GetShuttleMap(MapPortal portalInstance)
+        {
+            if (portalInstance is ShuttlePortalAdapter adapter && adapter.shuttle != null)
+            {
+                return adapter.shuttle.Map;
+            }
+            // 如果不是我们的适配器或者 shuttle 为空，则返回原始 MapPortal 的 Map
+            // 我们需要直接访问 Thing 类的 Map 属性，这是 MapPortal 继承的
+            var originalMapGetter = AccessTools.PropertyGetter(typeof(Thing), "Map");
+            return (Map)originalMapGetter.Invoke(portalInstance, null);
+        }
+    }
+}