Outlaw vampires and werewolves (bugs #7723, #7724)

CHANGELOG.md

@@ -105,6 +105,8 @@
     Bug #7679: Scene luminance value flashes when toggling shaders
     Bug #7685: Corky sometimes doesn't follow Llovyn Andus
     Bug #7712: Casting doesn't support spells and enchantments with no effects
+    Bug #7723: Assaulting vampires and werewolves shouldn't be a crime
+    Bug #7724: Guards don't help vs werewolves
     Feature #3537: Shader-based water ripples
     Feature #5173: Support for NiFogProperty
     Feature #5492: Let rain and snow collide with statics

apps/openmw/mwmechanics/actors.cpp

@@ -707,10 +707,9 @@ namespace MWMechanics
             }
         }
 
-        // Make guards go aggressive with creatures that are in combat, unless the creature is a follower or escorter
+        // Make guards go aggressive with creatures and werewolves that are in combat
         const auto world = MWBase::Environment::get().getWorld();
-        if (!aggressive && actor1.getClass().isClass(actor1, "Guard") && !actor2.getClass().isNpc()
-            && creatureStats2.getAiSequence().isInCombat())
+        if (!aggressive && actor1.getClass().isClass(actor1, "Guard") && creatureStats2.getAiSequence().isInCombat())
         {
             // Check if the creature is too far
             static const float fAlarmRadius
@@ -718,20 +717,30 @@ namespace MWMechanics
             if (sqrDist > fAlarmRadius * fAlarmRadius)
                 return;
 
-            bool followerOrEscorter = false;
-            for (const auto& package : creatureStats2.getAiSequence())
+            bool targetIsCreature = !actor2.getClass().isNpc();
+            if (targetIsCreature || actor2.getClass().getNpcStats(actor2).isWerewolf())
             {
-                // The follow package must be first or have nothing but combat before it
-                if (package->sideWithTarget())
+                bool followerOrEscorter = false;
+                // ...unless the creature has allies
+                if (targetIsCreature)
                 {
-                    followerOrEscorter = true;
-                    break;
+                    for (const auto& package : creatureStats2.getAiSequence())
+                    {
+                        // The follow package must be first or have nothing but combat before it
+                        if (package->sideWithTarget())
+                        {
+                            followerOrEscorter = true;
+                            break;
+                        }
+                        else if (package->getTypeId() != MWMechanics::AiPackageTypeId::Combat)
+                            break;
+                    }
                 }
-                else if (package->getTypeId() != MWMechanics::AiPackageTypeId::Combat)
-                    break;
+                // Morrowind also checks "known werewolf" flag, but the player is never in combat
+                // so this code is unreachable for the player
+                if (!followerOrEscorter)
+                    aggressive = true;
             }
-            if (!followerOrEscorter)
-                aggressive = true;
         }
 
         // If any of the above conditions turned actor1 aggressive towards actor2, do an awareness check. If it passes,

apps/openmw/mwmechanics/mechanicsmanagerimp.cpp

@@ -1466,10 +1466,13 @@ namespace MWMechanics
 
     bool MechanicsManager::canCommitCrimeAgainst(const MWWorld::Ptr& target, const MWWorld::Ptr& attacker)
     {
-        const MWMechanics::AiSequence& seq = target.getClass().getCreatureStats(target).getAiSequence();
-        return target.getClass().isNpc() && !attacker.isEmpty() && !seq.isInCombat(attacker)
-            && !isAggressive(target, attacker) && !seq.isEngagedWithActor()
-            && !target.getClass().getCreatureStats(target).getAiSequence().isInPursuit();
+        const MWWorld::Class& cls = target.getClass();
+        const MWMechanics::CreatureStats& stats = cls.getCreatureStats(target);
+        const MWMechanics::AiSequence& seq = stats.getAiSequence();
+        return cls.isNpc() && !attacker.isEmpty() && !seq.isInCombat(attacker) && !isAggressive(target, attacker)
+            && !seq.isEngagedWithActor() && !stats.getAiSequence().isInPursuit()
+            && !cls.getNpcStats(target).isWerewolf()
+            && stats.getMagicEffects().getOrDefault(ESM::MagicEffect::Vampirism).getMagnitude() <= 0;
     }
 
     void MechanicsManager::actorKilled(const MWWorld::Ptr& victim, const MWWorld::Ptr& attacker)