Make flying creatures fall when paralyzed (Fixes #1494)

apps/openmw/mwmechanics/character.cpp

@@ -1395,6 +1395,9 @@ void CharacterController::update(float duration)
             if (mMovementAnimVelocity == 0)
                 world->queueMovement(mPtr, vec);
         }
+        else
+            // We must always queue movement, even if there is none, to apply gravity.
+            world->queueMovement(mPtr, Ogre::Vector3(0.0f));
 
         movement = vec;
         cls.getMovementSettings(mPtr).mPosition[0] = cls.getMovementSettings(mPtr).mPosition[1] = cls.getMovementSettings(mPtr).mPosition[2] = 0;

apps/openmw/mwworld/worldimp.cpp

@@ -1764,6 +1764,9 @@ namespace MWWorld
     bool
     World::isFlying(const MWWorld::Ptr &ptr) const
     {
+        const MWMechanics::CreatureStats &stats = ptr.getClass().getCreatureStats(ptr);
+        bool isParalyzed = (stats.getMagicEffects().get(ESM::MagicEffect::Paralyze).mMagnitude > 0);
+
         if(!ptr.getClass().isActor())
             return false;
 
@@ -1771,9 +1774,8 @@ namespace MWWorld
             return false;
 
         if (ptr.getClass().canFly(ptr))
-            return true;
+            return !isParalyzed;
 
-        const MWMechanics::CreatureStats &stats = ptr.getClass().getCreatureStats(ptr);
         if(stats.getMagicEffects().get(ESM::MagicEffect::Levitate).mMagnitude > 0
                 && isLevitationEnabled())
             return true;