Fix creatures not being able to move with 0/0 encumbrance

apps/openmw/mwclass/creature.cpp

@@ -537,15 +537,14 @@ namespace MWClass
         const MWBase::World *world = MWBase::Environment::get().getWorld();
         const MWMechanics::MagicEffects &mageffects = stats.getMagicEffects();
 
-        const float normalizedEncumbrance = getNormalizedEncumbrance(ptr);
-
         bool running = ptr.getClass().getCreatureStats(ptr).getStance(MWMechanics::CreatureStats::Stance_Run);
 
         // The Run speed difference for creatures comes from the animation speed difference (see runStateToWalkState in character.cpp)
         float runSpeed = walkSpeed;
 
         float moveSpeed;
-        if(normalizedEncumbrance >= 1.0f)
+
+        if(getEncumbrance(ptr) > getCapacity(ptr))
             moveSpeed = 0.0f;
         else if(canFly(ptr) || (mageffects.get(ESM::MagicEffect::Levitate).getMagnitude() > 0 &&
                 world->isLevitationEnabled()))
@@ -553,6 +552,7 @@ namespace MWClass
             float flySpeed = 0.01f*(stats.getAttribute(ESM::Attribute::Speed).getModified() +
                                     mageffects.get(ESM::MagicEffect::Levitate).getMagnitude());
             flySpeed = gmst.fMinFlySpeed->getFloat() + flySpeed*(gmst.fMaxFlySpeed->getFloat() - gmst.fMinFlySpeed->getFloat());
+            const float normalizedEncumbrance = getNormalizedEncumbrance(ptr);
             flySpeed *= 1.0f - gmst.fEncumberedMoveEffect->getFloat() * normalizedEncumbrance;
             flySpeed = std::max(0.0f, flySpeed);
             moveSpeed = flySpeed;