From 23bf6ed878fb7ce2b11e3023ddd9851a46728fce Mon Sep 17 00:00:00 2001
From: Evil Eye <malusluminis@hotmail.com>
Date: Mon, 16 Oct 2023 18:16:12 +0200
Subject: [PATCH] Remove missing scripts from actors much like is done for
 items

---
 CHANGELOG.md                     |  1 +
 apps/openmw/mwworld/esmstore.cpp | 26 +++++++++++++++++++-------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4ac1067da..9ea5c748e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -58,6 +58,7 @@
     Bug #7134: Saves with an invalid last generated RefNum can be loaded
     Bug #7163: Myar Aranath: Wheat breaks the GUI
     Bug #7172: Current music playlist continues playing indefinitely if next playlist is empty
+    Bug #7204: Missing actor scripts freeze the game
     Bug #7229: Error marker loading failure is not handled
     Bug #7243: Supporting loading external files from VFS from esm files
     Bug #7284: "Your weapon has no effect." message doesn't always show when the player character attempts to attack
diff --git a/apps/openmw/mwworld/esmstore.cpp b/apps/openmw/mwworld/esmstore.cpp
index f9b53cf21f..ad3d1f8d43 100644
--- a/apps/openmw/mwworld/esmstore.cpp
+++ b/apps/openmw/mwworld/esmstore.cpp
@@ -84,7 +84,8 @@ namespace
     }
 
     std::vector<ESM::NPC> getNPCsToReplace(const MWWorld::Store<ESM::Faction>& factions,
-        const MWWorld::Store<ESM::Class>& classes, const std::unordered_map<ESM::RefId, ESM::NPC>& npcs)
+        const MWWorld::Store<ESM::Class>& classes, const MWWorld::Store<ESM::Script>& scripts,
+        const std::unordered_map<ESM::RefId, ESM::NPC>& npcs)
     {
         // Cache first class from store - we will use it if current class is not found
         const ESM::RefId& defaultCls = getDefaultClass(classes);
@@ -122,6 +123,14 @@ namespace
                 changed = true;
             }
 
+            if (!npc.mScript.empty() && !scripts.search(npc.mScript))
+            {
+                Log(Debug::Verbose) << "NPC " << npc.mId << " (" << npc.mName << ") has nonexistent script "
+                                    << npc.mScript << ", ignoring it.";
+                npc.mScript = ESM::RefId();
+                changed = true;
+            }
+
             if (changed)
                 npcsToReplace.push_back(npc);
         }
@@ -138,9 +147,9 @@ namespace
         {
             if (!item.mScript.empty() && !scripts.search(item.mScript))
             {
+                Log(Debug::Verbose) << MapT::mapped_type::getRecordType() << ' ' << id << " (" << item.mName
+                                    << ") has nonexistent script " << item.mScript << ", ignoring it.";
                 item.mScript = ESM::RefId();
-                Log(Debug::Verbose) << "Item " << id << " (" << item.mName << ") has nonexistent script "
-                                    << item.mScript << ", ignoring it.";
             }
         }
     }
@@ -517,8 +526,8 @@ namespace MWWorld
     void ESMStore::validate()
     {
         auto& npcs = getWritable<ESM::NPC>();
-        std::vector<ESM::NPC> npcsToReplace
-            = getNPCsToReplace(getWritable<ESM::Faction>(), getWritable<ESM::Class>(), npcs.mStatic);
+        std::vector<ESM::NPC> npcsToReplace = getNPCsToReplace(
+            getWritable<ESM::Faction>(), getWritable<ESM::Class>(), getWritable<ESM::Script>(), npcs.mStatic);
 
         for (const ESM::NPC& npc : npcsToReplace)
         {
@@ -526,6 +535,8 @@ namespace MWWorld
             npcs.insertStatic(npc);
         }
 
+        removeMissingScripts(getWritable<ESM::Script>(), getWritable<ESM::Creature>().mStatic);
+
         // Validate spell effects for invalid arguments
         std::vector<ESM::Spell> spellsToReplace;
         auto& spells = getWritable<ESM::Spell>();
@@ -605,8 +616,8 @@ namespace MWWorld
         auto& npcs = getWritable<ESM::NPC>();
         auto& scripts = getWritable<ESM::Script>();
 
-        std::vector<ESM::NPC> npcsToReplace
-            = getNPCsToReplace(getWritable<ESM::Faction>(), getWritable<ESM::Class>(), npcs.mDynamic);
+        std::vector<ESM::NPC> npcsToReplace = getNPCsToReplace(
+            getWritable<ESM::Faction>(), getWritable<ESM::Class>(), getWritable<ESM::Script>(), npcs.mDynamic);
 
         for (const ESM::NPC& npc : npcsToReplace)
             npcs.insert(npc);
@@ -614,6 +625,7 @@ namespace MWWorld
         removeMissingScripts(scripts, getWritable<ESM::Armor>().mDynamic);
         removeMissingScripts(scripts, getWritable<ESM::Book>().mDynamic);
         removeMissingScripts(scripts, getWritable<ESM::Clothing>().mDynamic);
+        removeMissingScripts(scripts, getWritable<ESM::Creature>().mDynamic);
         removeMissingScripts(scripts, getWritable<ESM::Weapon>().mDynamic);
 
         removeMissingObjects(getWritable<ESM::CreatureLevList>());