Accept heading angle in degree instead of radians, which is easier

(considering that the special start-tag is mostly used when manually debugging).


git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/physics@10247 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/tracks/track.cpp

@@ -1233,7 +1233,8 @@ void Track::loadTrackModel(World* parent, unsigned int mode_id)
 
             m_start_transforms[position].setOrigin(xyz);
             m_start_transforms[position].setRotation(
-                                           btQuaternion(btVector3(0,1,0),h ) );
+                                           btQuaternion(btVector3(0,1,0),
+                                                        h*DEGREE_TO_RAD ) );
         }
         else if(name=="camera")
         {