Add const version of World::getAnimation

apps/openmw/mwbase/world.hpp

@@ -430,6 +430,7 @@ namespace MWBase
 
             /// \todo Probably shouldn't be here
             virtual MWRender::Animation* getAnimation(const MWWorld::Ptr &ptr) = 0;
+            virtual const MWRender::Animation* getAnimation(const MWWorld::ConstPtr &ptr) const = 0;
             virtual void reattachPlayerCamera() = 0;
 
             /// \todo this does not belong here

apps/openmw/mwmechanics/character.cpp

@@ -2114,7 +2114,7 @@ void CharacterController::setActive(bool active)
     mAnimation->setActive(active);
 }
 
-void CharacterController::setHeadTrackTarget(const MWWorld::Ptr &target)
+void CharacterController::setHeadTrackTarget(const MWWorld::ConstPtr &target)
 {
     mHeadTrackTarget = target;
 }
@@ -2137,7 +2137,7 @@ void CharacterController::updateHeadTracking(float duration)
         osg::Vec3f headPos = mat.getTrans();
 
         osg::Vec3f direction;
-        if (MWRender::Animation* anim = MWBase::Environment::get().getWorld()->getAnimation(mHeadTrackTarget))
+        if (const MWRender::Animation* anim = MWBase::Environment::get().getWorld()->getAnimation(mHeadTrackTarget))
         {
             const osg::Node* node = anim->getNode("Head");
             if (node == NULL)

apps/openmw/mwmechanics/character.hpp

@@ -180,7 +180,7 @@ class CharacterController : public MWRender::Animation::TextKeyListener
     float mSecondsOfSwimming;
     float mSecondsOfRunning;
 
-    MWWorld::Ptr mHeadTrackTarget;
+    MWWorld::ConstPtr mHeadTrackTarget;
 
     float mTurnAnimationThreshold; // how long to continue playing turning animation after actor stopped turning
 
@@ -255,7 +255,7 @@ public:
     void setActive(bool active);
 
     /// Make this character turn its head towards \a target. To turn off head tracking, pass an empty Ptr.
-    void setHeadTrackTarget(const MWWorld::Ptr& target);
+    void setHeadTrackTarget(const MWWorld::ConstPtr& target);
 };
 
     MWWorld::ContainerStoreIterator getActiveWeapon(CreatureStats &stats, MWWorld::InventoryStore &inv, WeaponType *weaptype);

apps/openmw/mwworld/worldimp.cpp

@@ -2112,6 +2112,11 @@ namespace MWWorld
         return mRendering->getAnimation(ptr);
     }
 
+    const MWRender::Animation* World::getAnimation(const MWWorld::ConstPtr &ptr) const
+    {
+        return mRendering->getAnimation(ptr);
+    }
+
     void World::screenshot(osg::Image* image, int w, int h)
     {
         mRendering->screenshot(image, w, h);

apps/openmw/mwworld/worldimp.hpp

@@ -534,6 +534,7 @@ namespace MWWorld
 
             /// \todo Probably shouldn't be here
             virtual MWRender::Animation* getAnimation(const MWWorld::Ptr &ptr);
+            virtual const MWRender::Animation* getAnimation(const MWWorld::ConstPtr &ptr) const;
             virtual void reattachPlayerCamera();
 
             /// \todo this does not belong here