75 lines
3.0 KiB
C#
75 lines
3.0 KiB
C#
using System;
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using System.Reflection;
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using Harmony;
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using HutongGames.PlayMaker;
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using MSCLoader;
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using UnityEngine;
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namespace MSCO
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{
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/// <summary>
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/// Schutz vor Abstürzen durch nachgespielte Aktionen: Wird beim Beitreten eine Montage-Aktion in einer
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/// etwas anderen Welt nachgespielt, kann die "SetParent"-Aktion eines Teils ein Objekt unter sein eigenes
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/// Kind hängen. Das ergibt einen Kreis in der Hierarchie und Unity stürzt nativ ab (Stack Overflow in
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/// Transform::GetClassIDStatic). Solche Aufrufe werden hier abgefangen und übersprungen.
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/// </summary>
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public static class SafetyPatches
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{
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static bool applied;
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static FieldInfo gameObjectField, parentField;
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static int blocked;
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public static void Apply()
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{
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if (applied) return;
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applied = true;
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try
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{
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Type action = null;
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foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
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{
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action = asm.GetType("HutongGames.PlayMaker.Actions.SetParent");
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if (action != null) break;
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}
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MethodInfo onEnter = action != null ? action.GetMethod("OnEnter", BindingFlags.Instance | BindingFlags.Public) : null;
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if (onEnter == null) { ModConsole.Warning("[MSCO] SetParent action not found - hierarchy guard disabled"); return; }
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gameObjectField = action.GetField("gameObject");
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parentField = action.GetField("parent");
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HarmonyInstance.Create("mbm.msco.safety").Patch(onEnter,
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new HarmonyMethod(typeof(SafetyPatches).GetMethod("SetParentPrefix", BindingFlags.Static | BindingFlags.NonPublic)), null);
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}
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catch (Exception e)
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{
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ModConsole.Warning("[MSCO] Could not install hierarchy guard: " + e.Message);
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}
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}
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static bool SetParentPrefix(FsmStateAction __instance)
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{
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try
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{
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var owner = gameObjectField != null ? gameObjectField.GetValue(__instance) as FsmOwnerDefault : null;
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var parent = parentField != null ? parentField.GetValue(__instance) as FsmGameObject : null;
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if (owner == null || parent == null || parent.Value == null) return true;
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GameObject go = __instance.Fsm.GetOwnerDefaultTarget(owner);
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if (go == null) return true;
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Transform child = go.transform, newParent = parent.Value.transform;
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if (newParent != child && !newParent.IsChildOf(child)) return true;
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blocked++;
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if (blocked <= 20)
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ModConsole.Warning("[MSCO] Blocked SetParent that would crash the game: " + go.name + " -> " + parent.Value.name +
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" (" + __instance.Fsm.Name + ")");
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__instance.Finish();
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return false;
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}
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catch
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{
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return true;
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}
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}
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}
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}
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