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Fix extreme frame drop when running into certain corners (Fixes #2023)

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This commit is contained in:
scrawl 2015-01-15 00:58:12 +01:00
parent d387c207d1
commit cef72385d4
1 changed files with 12 additions and 2 deletions
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14
apps/openmw/mwworld/physicssystem.cpp
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@ -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.