Added update sneak to actors

Intends to check the state of a players sneak by asking the question if
each npc can see the player.

apps/openmw/mwmechanics/actors.cpp

@@ -236,6 +236,7 @@ namespace MWMechanics
             updateDrowning(ptr, duration);
             calculateNpcStatModifiers(ptr);
             updateEquippedLight(ptr, duration);
+            updateSneak(ptr);
         }
     }
 
@@ -720,6 +721,28 @@ namespace MWMechanics
         }
     }
 
+    void Actors::updateSneak (const MWWorld::Ptr& ptr)
+    {  
+        const MWWorld::Ptr player = MWBase::Environment::get().getWorld()->getPlayerPtr();
+        if (player.getClass().getCreatureStats(player).getMovementFlag(MWMechanics::CreatureStats::Flag_Sneak)) 
+        {
+            const MWWorld::ESMStore& esmStore = MWBase::Environment::get().getWorld()->getStore();
+            int radius = esmStore.get<ESM::GameSetting>().find("fSneakUseDist")->getInt();
+            
+            // am I close enough to the player?
+            if (Ogre::Vector3(ptr.getRefData().getPosition().pos).squaredDistance(Ogre::Vector3(player.getRefData().getPosition().pos))
+                 <= radius * radius )
+            {
+                bool seen = false; // unseen
+                if (   !MWBase::Environment::get().getMechanicsManager()->awarenessCheck(player, ptr) 
+                    && !MWBase::Environment::get().getWorld()->getLOS(player, ptr) )
+                    seen = true; // seen
+
+                MWBase::Environment::get().getWindowManager()->setSneakVisibility(seen);
+            }
+        }
+    }
+
     void Actors::updateCrimePersuit(const MWWorld::Ptr& ptr, float duration)
     {
         MWWorld::Ptr player = MWBase::Environment::get().getWorld()->getPlayerPtr();

apps/openmw/mwmechanics/actors.hpp

@@ -44,6 +44,8 @@ namespace MWMechanics
 
             void updateCrimePersuit (const MWWorld::Ptr& ptr, float duration);
 
+            void updateSneak (const MWWorld::Ptr& ptr);
+
         public:
 
             Actors();

apps/openmw/mwworld/player.cpp

@@ -100,7 +100,6 @@ namespace MWWorld
     void Player::setLeftRight (int value)
     {
         MWWorld::Ptr ptr = getPlayer();
-
         MWWorld::Class::get (ptr).getMovementSettings (ptr).mPosition[0] = value;
     }
 
@@ -119,7 +118,6 @@ namespace MWWorld
     void Player::setUpDown(int value)
     {
         MWWorld::Ptr ptr = getPlayer();
-
         MWWorld::Class::get (ptr).getMovementSettings (ptr).mPosition[2] = value;
     }
 
@@ -132,7 +130,6 @@ namespace MWWorld
     void Player::setSneak(bool sneak)
     {
         MWWorld::Ptr ptr = getPlayer();
-
         ptr.getClass().getCreatureStats(ptr).setMovementFlag(MWMechanics::CreatureStats::Flag_Sneak, sneak);
 
         if (sneak)
@@ -157,8 +154,6 @@ namespace MWWorld
             if (neighbors.empty())
                 MWBase::Environment::get().getWindowManager()->setSneakVisibility(true);
         }
-        else
-            MWBase::Environment::get().getWindowManager()->setSneakVisibility(false);
     }
 
     void Player::yaw(float yaw)