Use sight center for fow reveal actions

server/CGameHandler.cpp

@@ -900,7 +900,7 @@ void CGameHandler::onNewTurn()
 			{
 				if (getPlayerStatus(player.first) == EPlayerStatus::INGAME &&
 					getPlayerRelations(player.first, t->tempOwner) == PlayerRelations::ENEMIES)
-					changeFogOfWar(t->visitablePos(), t->getFirstBonus(Selector::type()(BonusType::DARKNESS))->val, player.first, ETileVisibility::HIDDEN);
+					changeFogOfWar(t->getSightCenter(), t->getFirstBonus(Selector::type()(BonusType::DARKNESS))->val, player.first, ETileVisibility::HIDDEN);
 			}
 		}
 	}
@@ -1550,7 +1550,7 @@ void CGameHandler::giveHero(ObjectInstanceID id, PlayerColor player, ObjectInsta
 
 	//Reveal fow around new hero, especially released from Prison
 	auto h = getHero(id);
-	changeFogOfWar(h->pos, h->getSightRadius(), player, ETileVisibility::REVEALED);
+	changeFogOfWar(h->getSightCenter(), h->getSightRadius(), player, ETileVisibility::REVEALED);
 }
 
 void CGameHandler::changeObjPos(ObjectInstanceID objid, int3 newPos, const PlayerColor & initiator)