Method updateStateList

Engine/source/collision/convex.cpp:508–547

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

void Convex::updateStateList(const MatrixF& mat, const Point3F& scale, const Point3F* displacement)
{
   PROFILE_SCOPE( Convex_UpdateStateList );

   Box3F box1 = getBoundingBox(mat, scale);
   box1.minExtents -= Point3F(1, 1, 1);
   box1.maxExtents += Point3F(1, 1, 1);
   if (displacement) {
      Point3F oldMin = box1.minExtents;
      Point3F oldMax = box1.maxExtents;

      box1.minExtents.setMin(oldMin + *displacement);
      box1.minExtents.setMin(oldMax + *displacement);
      box1.maxExtents.setMax(oldMin + *displacement);
      box1.maxExtents.setMax(oldMax + *displacement);
   }
   sTag++;

   // Destroy states which are no longer intersecting
   for (CollisionStateList* itr = mList.mNext; itr != &mList; itr = itr->mNext) {
      Convex* cv = (itr->mState->mA == this)? itr->mState->mB: itr->mState->mA;
      cv->mTag = sTag;
      if (!box1.isOverlapped(cv->getBoundingBox())) {
         CollisionState* cs = itr->mState;
         itr = itr->mPrev;
         delete cs;
      }
   }

   // Add collision states for new overlapping objects
   for (CollisionWorkingList* itr0 = mWorking.wLink.mNext; itr0 != &mWorking; itr0 = itr0->wLink.mNext) {
      Convex* cv = itr0->mConvex;
      if (cv->mTag != sTag && box1.isOverlapped(cv->getBoundingBox())) {
         CollisionState* state = new GjkCollisionState;
         state->set(this,cv,mat,cv->getTransform());
         state->mLista->linkAfter(&mList);
         state->mListb->linkAfter(&cv->mList);
      }
   }
}


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