示例#1
0
static void     WritePortalFile_r(const node_t* const node)
{
    int             i;
    portal_t*       p;
    Winding*        w;
    dplane_t        plane2;

    if (!node->contents)
    {
        WritePortalFile_r(node->children[0]);
        WritePortalFile_r(node->children[1]);
        return;
    }

    if (node->contents == CONTENTS_SOLID)
    {
        return;
    }

    for (p = node->portals; p;)
    {
        w = p->winding;
        if (w && p->nodes[0] == node)
        {
            if (p->nodes[0]->contents == p->nodes[1]->contents)
            {
                // write out to the file

                // sometimes planes get turned around when they are very near
                // the changeover point between different axis.  interpret the
                // plane the same way vis will, and flip the side orders if needed
                w->getPlane(plane2);
                if (DotProduct(p->plane.normal, plane2.normal) < 1.0 - ON_EPSILON)
                {                                          // backwards...
                    fprintf(pf, "%u %i %i ", w->m_NumPoints, p->nodes[1]->visleafnum, p->nodes[0]->visleafnum);
                }
                else
                {
                    fprintf(pf, "%u %i %i ", w->m_NumPoints, p->nodes[0]->visleafnum, p->nodes[1]->visleafnum);
                }

                for (i = 0; i < w->m_NumPoints; i++)
                {
                    fprintf(pf, "(%f %f %f) ", w->m_Points[i][0], w->m_Points[i][1], w->m_Points[i][2]);
                }
                fprintf(pf, "\n");
            }
        }

        if (p->nodes[0] == node)
        {
            p = p->next[0];
        }
        else
        {
            p = p->next[1];
        }
    }

}