diff --git a/apps/openmw/mwworld/physicssystem.cpp b/apps/openmw/mwworld/physicssystem.cpp index 993e1aa25..d17d5e089 100644 --- a/apps/openmw/mwworld/physicssystem.cpp +++ b/apps/openmw/mwworld/physicssystem.cpp @@ -350,6 +350,8 @@ namespace MWWorld velocity *= 1.f-(fStromWalkMult * (angle.valueDegrees()/180.f)); } + Ogre::Vector3 origVelocity = velocity; + Ogre::Vector3 newPosition = position; /* * A loop to find newPosition using tracer, if successful different from the starting position. @@ -427,10 +429,18 @@ namespace MWWorld else { // Can't move this way, try to find another spot along the plane - Ogre::Real movelen = velocity.normalise(); + Ogre::Vector3 direction = velocity; + Ogre::Real movelen = direction.normalise(); Ogre::Vector3 reflectdir = velocity.reflect(tracer.mPlaneNormal); reflectdir.normalise(); - velocity = slide(reflectdir, tracer.mPlaneNormal)*movelen; + + Ogre::Vector3 newVelocity = slide(reflectdir, tracer.mPlaneNormal)*movelen; + if ((newVelocity-velocity).squaredLength() < 0.01) + break; + if (velocity.dotProduct(origVelocity) <= 0.f) + break; + + velocity = newVelocity; // Do not allow sliding upward if there is gravity. Stepping will have taken // care of that.