Esempio n. 1
0
    void buildSubspaceGeometries()
    {
        for(ConvexSubspaceProxy const &subspace : subspaces)
        {
            /// @todo Move BSP leaf construction here?
            BspLeaf &bspLeaf = *subspace.bspLeaf();

            subspace.buildGeometry(bspLeaf, *mesh);

            // Account the new segments.
            /// @todo Refactor away.
            for(OrderedSegment const &oseg : subspace.segments())
            {
                if(oseg.segment->hasHEdge())
                {
                    // There is now one more line segment.
                    segmentCount += 1;
                }
            }
        }

        /*
         * Finalize the built geometry by adding a twin half-edge for any
         * which don't yet have one.
         */
        for(ConvexSubspaceProxy const &convexSet : subspaces)
        for(OrderedSegment const &oseg : convexSet.segments())
        {
            LineSegmentSide *seg = oseg.segment;

            if(seg->hasHEdge() && !seg->back().hasHEdge())
            {
                HEdge *hedge = &seg->hedge();
                DENG2_ASSERT(!hedge->hasTwin());

                // Allocate the twin from the same mesh.
                hedge->setTwin(hedge->mesh().newHEdge(seg->back().from()));
                hedge->twin().setTwin(hedge);
            }
        }
    }