Method updateWorkingCollisionSet

Engine/source/T3D/rigidShape.cpp:1426–1474

//----------------------------------------------------------------------------

void RigidShape::updateWorkingCollisionSet(const U32 mask)
{
   PROFILE_SCOPE( Vehicle_UpdateWorkingCollisionSet );

   // First, we need to adjust our velocity for possible acceleration.  It is assumed
   // that we will never accelerate more than 20 m/s for gravity, plus 30 m/s for
   // jetting, and an equivalent 10 m/s for vehicle accel.  We also assume that our
   // working list is updated on a Tick basis, which means we only expand our box by
   // the possible movement in that tick, plus some extra for caching purposes
   Box3F convexBox = mConvex.getBoundingBox(getTransform(), getScale());
   F32 len = (mRigid.linVelocity.len() + 50) * TickSec;
   F32 l = (len * 1.1) + 0.1;  // fudge factor
   convexBox.minExtents -= Point3F(l, l, l);
   convexBox.maxExtents += Point3F(l, l, l);

   // Check to see if it is actually necessary to construct the new working list,
   // or if we can use the cached version from the last query.  We use the x
   // component of the min member of the mWorkingQueryBox, which is lame, but
   // it works ok.
   bool updateSet = false;

   // Check containment
   if ((sWorkingQueryBoxStaleThreshold == -1 || mWorkingQueryBoxCountDown > 0) && mWorkingQueryBox.minExtents.x != -1e9f)
   {
      if (mWorkingQueryBox.isContained(convexBox) == false)
         // Needed region is outside the cached region.  Update it.
         updateSet = true;
   }
   else
   {
      // Must update
      updateSet = true;
   }

   // Actually perform the query, if necessary
   if (updateSet == true)
   {
      mWorkingQueryBoxCountDown = sWorkingQueryBoxStaleThreshold;

      const Point3F  lPoint( sWorkingQueryBoxSizeMultiplier * l );
      mWorkingQueryBox = convexBox;
      mWorkingQueryBox.minExtents -= lPoint;
      mWorkingQueryBox.maxExtents += lPoint;

      disableCollision();
      mConvex.updateWorkingList(mWorkingQueryBox, mask);
      enableCollision();
   }
}

//----------------------------------------------------------------------------
/** Check collisions with trigger and items