Method update

Engine/source/navigation/navPath.cpp:456–521

}

bool NavPath::update()
{
   PROFILE_SCOPE(NavPath_update);
   if(dtStatusInProgress(mStatus))
      mStatus = mQuery->updateSlicedFindPath(mMaxIterations, NULL);
   if(dtStatusSucceed(mStatus))
   {
      // Add points from this leg.
      dtPolyRef path[MaxPathLen];
      S32 pathLen;
      mStatus = mQuery->finalizeSlicedFindPath(path, &pathLen, MaxPathLen);
      if(dtStatusSucceed(mStatus) && pathLen)
      {
         F32 straightPath[MaxPathLen * 3];
         S32 straightPathLen;
         dtPolyRef straightPathPolys[MaxPathLen];
         U8 straightPathFlags[MaxPathLen];

         U32 s = mVisitPoints.size();
         Point3F start = mVisitPoints[s-1];
         Point3F end = mVisitPoints[s-2];
         F32 from[] = {start.x, start.z, -start.y};
         F32 to[] =   {end.x,   end.z,   -end.y};

         mQuery->findStraightPath(from, to, path, pathLen,
            straightPath, straightPathFlags,
            straightPathPolys, &straightPathLen, MaxPathLen);

         s = mPoints.size();
         mPoints.increment(straightPathLen);
         mFlags.increment(straightPathLen);
         for(U32 i = 0; i < straightPathLen; i++)
         {
            F32 *f = straightPath + i * 3;
            mPoints[s + i] = RCtoDTS(f);
            mMesh->getNavMesh()->getPolyFlags(straightPathPolys[i], &mFlags[s + i]);
            // Add to length
            if(s > 0 || i > 0)
               mLength += (mPoints[s+i] - mPoints[s+i-1]).len();
         }

         if(isServerObject())
            setMaskBits(PathMask);
      }
      else
         return false;
      // Check to see where we still need to visit.
      if(mVisitPoints.size() > 1)
      {
         //Next leg of the journey.
         mVisitPoints.pop_back();
         return visitNext();
      }
      else
      {
         // Finished!
         return false;
      }