diff --git a/apps/openmw/mwbase/world.hpp b/apps/openmw/mwbase/world.hpp
index 3b71d421c8..278c0d0a95 100644
--- a/apps/openmw/mwbase/world.hpp
+++ b/apps/openmw/mwbase/world.hpp
@@ -286,8 +286,9 @@ namespace MWBase
 
             virtual void processChangedSettings (const Settings::CategorySettingVector& settings) = 0;
 
-            virtual bool isSwimming(const MWWorld::Ptr &object) = 0;
-            virtual bool isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos) = 0;
+            virtual bool isSwimming(const MWWorld::Ptr &object) const = 0;
+            virtual bool isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos) const = 0;
+            virtual bool isOnGround(const MWWorld::Ptr &ptr) const = 0;
 
             virtual void togglePOV() = 0;
             virtual void togglePreviewMode(bool enable) = 0;
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index 77e29f9bef..f2d2e2c008 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -1379,7 +1379,7 @@ namespace MWWorld
     }
 
     bool
-    World::isSwimming(const MWWorld::Ptr &object)
+    World::isSwimming(const MWWorld::Ptr &object) const
     {
         /// \todo add check ifActor() - only actors can swim
         float *fpos = object.getRefData().getPosition().pos;
@@ -1393,7 +1393,7 @@ namespace MWWorld
     }
 
     bool
-    World::isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos)
+    World::isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos) const
     {
         if (!(cell.mData.mFlags & ESM::Cell::HasWater)) {
             return false;
@@ -1401,6 +1401,13 @@ namespace MWWorld
         return pos.z < cell.mWater;
     }
 
+    bool World::isOnGround(const MWWorld::Ptr &ptr) const
+    {
+        RefData &refdata = ptr.getRefData();
+        const OEngine::Physic::PhysicActor *physactor = mPhysEngine->getCharacter(refdata.getHandle());
+        return physactor && physactor->getOnGround();
+    }
+
     void World::renderPlayer()
     {
         mRendering->renderPlayer(mPlayer->getPlayer());
diff --git a/apps/openmw/mwworld/worldimp.hpp b/apps/openmw/mwworld/worldimp.hpp
index d7b20ba176..39c87fce75 100644
--- a/apps/openmw/mwworld/worldimp.hpp
+++ b/apps/openmw/mwworld/worldimp.hpp
@@ -314,8 +314,9 @@ namespace MWWorld
 
             virtual void processChangedSettings(const Settings::CategorySettingVector& settings);
 
-            virtual bool isSwimming(const MWWorld::Ptr &object);
-            virtual bool isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos);
+            virtual bool isSwimming(const MWWorld::Ptr &object) const;
+            virtual bool isUnderwater(const ESM::Cell &cell, const Ogre::Vector3 &pos) const;
+            virtual bool isOnGround(const MWWorld::Ptr &ptr) const;
 
             virtual void togglePOV() {
                 mRendering->togglePOV();