Function LinkToExternalRoom

editor/HRoom.cpp:2839–2889

Creates a an external room and links the specified faces to it Parameters: rp - the room to connect to the new room nfaces - how many faces connect to the new room (this becomes the number of portals) facenums - the list of faces to connect

//					nfaces - how many faces connect to the new room (this becomes the number of
//portals) 					facenums - the list of faces to connect
void LinkToExternalRoom(room *rp, int nfaces, int *facenums) {
  int vert_xlate[MAX_VERTS_PER_ROOM];
  int v, i, nverts = 0;

  for (i = 0; i < rp->num_verts; i++)
    vert_xlate[i] = -1;

  for (i = 0; i < nfaces; i++) {
    face *fp = &rp->faces[facenums[i]];

    for (v = 0; v < fp->num_verts; v++) {
      int vertnum = fp->face_verts[v];
      if (vert_xlate[vertnum] == -1)
        vert_xlate[vertnum] = nverts++;
    }
  }

  room *newrp = CreateNewRoom(nverts, nfaces);

  newrp->flags |= RF_EXTERNAL;

  for (i = 0; i < rp->num_verts; i++) {
    if (vert_xlate[i] != -1)
      newrp->verts[vert_xlate[i]] = rp->verts[i];
  }

  for (i = 0; i < nfaces; i++) {
    face *newfp = &newrp->faces[i], *fp = &rp->faces[facenums[i]];

    InitRoomFace(newfp, fp->num_verts);

    for (v = 0; v < fp->num_verts; v++)
      newfp->face_verts[v] = vert_xlate[fp->face_verts[fp->num_verts - v - 1]];

#ifndef NEWEDITOR
    newfp->tmap = fp->tmap;
#else
    // Apply texture
    HTextureApplyToRoomFace(newrp, i, newfp->tmap);
#endif

    if (!ComputeFaceNormal(newrp, i))
      Int3();

    LinkRooms(Rooms, ROOMNUM(rp), facenums[i], ROOMNUM(newrp), i);
  }

  AssignDefaultUVsToRoom(newrp);

  World_changed = 1;
}

extern bool Disable_editor_rendering;