Method updateWorkingCollisionSet

Engine/source/T3D/player.cpp:6117–6178

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

void Player::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 10 m/s for
   // jetting, and an equivalent 10 m/s for jumping.  We also assume that the
   // working list is updated on a Tick basis, which means we only expand our
   // box by the possible movement in that tick.
   Point3F scaledVelocity = mVelocity * TickSec;
   F32 len    = scaledVelocity.len();
   F32 newLen = len + (10.0f * TickSec);

   // 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;

   Box3F convexBox = mConvex.getBoundingBox(getTransform(), getScale());
   F32 l = (newLen * 1.1f) + 0.1f;  // from Convex::updateWorkingList
   const Point3F  lPoint( l, l, l );
   convexBox.minExtents -= lPoint;
   convexBox.maxExtents += lPoint;

   // Check containment
   if (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) {
      const Point3F  twolPoint( 2.0f * l, 2.0f * l, 2.0f * l );
      mWorkingQueryBox = convexBox;
      mWorkingQueryBox.minExtents -= twolPoint;
      mWorkingQueryBox.maxExtents += twolPoint;

      disableCollision();

      //We temporarily disable the collisions of anything mounted to us so we don't accidentally walk into things we've attached to us
      for (SceneObject *ptr = mMount.list; ptr; ptr = ptr->getMountLink())
      {
         ptr->disableCollision();
      }

      mConvex.updateWorkingList(mWorkingQueryBox,
         isGhost() ? sClientCollisionContactMask : sServerCollisionContactMask);

      //And now re-enable the collisions of the mounted things
      for (SceneObject *ptr = mMount.list; ptr; ptr = ptr->getMountLink())
      {
         ptr->enableCollision();
      }