stop navmesh updates when ai off

Signed-off-by: Bret Curtis <psi29a@gmail.com>

apps/openmw/mwmechanics/mechanicsmanagerimp.cpp

@@ -7,6 +7,8 @@
 #include <components/esm/esmwriter.hpp>
 #include <components/esm/stolenitems.hpp>
 
+#include <components/detournavigator/navigator.hpp>
+
 #include <components/sceneutil/positionattitudetransform.hpp>
 
 #include "../mwworld/esmstore.hpp"
@@ -900,6 +902,12 @@ namespace MWMechanics
     bool MechanicsManager::toggleAI()
     {
         mAI = !mAI;
+
+        MWBase::World* world = MWBase::Environment::get().getWorld();
+        world->getNavigator()->setUpdatesEnabled(mAI);
+        if (mAI)
+           world->getNavigator()->update(world->getPlayerPtr().getRefData().getPosition().asVec3());
+
         return mAI;
     }
 

components/detournavigator/navigator.hpp

@@ -155,6 +155,11 @@ namespace DetourNavigator
          */
         virtual void update(const osg::Vec3f& playerPosition) = 0;
 
+        /**
+         * @brief disable navigator updates
+         */
+        virtual void setUpdatesEnabled(bool enabled) = 0;
+
         /**
          * @brief wait locks thread until all tiles are updated from last update call.
          */

components/detournavigator/navigatorimpl.cpp

@@ -12,6 +12,7 @@ namespace DetourNavigator
     NavigatorImpl::NavigatorImpl(const Settings& settings)
         : mSettings(settings)
         , mNavMeshManager(mSettings)
+        , mUpdatesEnabled(true)
     {
     }
 
@@ -138,11 +139,18 @@ namespace DetourNavigator
 
     void NavigatorImpl::update(const osg::Vec3f& playerPosition)
     {
+        if (!mUpdatesEnabled)
+            return;
         removeUnusedNavMeshes();
         for (const auto& v : mAgents)
             mNavMeshManager.update(playerPosition, v.first);
     }
 
+    void NavigatorImpl::setUpdatesEnabled(bool enabled)
+    {
+        mUpdatesEnabled = enabled;
+    }
+
     void NavigatorImpl::wait()
     {
         mNavMeshManager.wait();

components/detournavigator/navigatorimpl.hpp

@@ -46,6 +46,8 @@ namespace DetourNavigator
 
         void update(const osg::Vec3f& playerPosition) override;
 
+        void setUpdatesEnabled(bool enabled) override;
+
         void wait() override;
 
         SharedNavMeshCacheItem getNavMesh(const osg::Vec3f& agentHalfExtents) const override;
@@ -61,6 +63,7 @@ namespace DetourNavigator
     private:
         Settings mSettings;
         NavMeshManager mNavMeshManager;
+        bool mUpdatesEnabled;
         std::map<osg::Vec3f, std::size_t> mAgents;
         std::unordered_map<ObjectId, ObjectId> mAvoidIds;
         std::unordered_map<ObjectId, ObjectId> mWaterIds;

components/detournavigator/navigatorstub.hpp

@@ -66,6 +66,8 @@ namespace DetourNavigator
 
         void update(const osg::Vec3f& /*playerPosition*/) override {}
 
+        void setUpdatesEnabled(bool enabled) override {}
+
         void wait() override {}
 
         SharedNavMeshCacheItem getNavMesh(const osg::Vec3f& /*agentHalfExtents*/) const override