Function WireframeFindRoomFace

editor/drawworld.cpp:509–553

Finds the closest room:face to the viewer at a given x,y screen position in the wireframe view Parameters: vp - the viewport we're checking. Must be the same viewport as the last wireframe view rendered x,y - the screen coordinates clicked on roomnum,facenum - pointers to variables to be filled in find_mode - see values in header file Returns: true if found a room/face

//					find_mode - see values in header file
// Returns:		true if found a room/face
bool WireframeFindRoomFace(grViewport *vp, int x, int y, int *roomnum, int *facenum, int find_mode) {
  if (last_vp == NULL)
    return 0;

  if (vp != last_vp) {
    // Int3();
    return 0;
  }

  Draw_viewport = vp;

  vp->clear();

  StartEditorFrame(vp, &last_viewer_position, &last_view_orient, last_zoom);

  Search_mode = 1;
  Search_find_mode = find_mode;
  Search_x = x;
  Search_y = y;
  Search_viewer = last_viewer_position;
  Search_min_dist = (find_mode == FM_NEXT) ? Found_dist : 0.0;
  Search_roomnum = *roomnum;
  Search_facenum = *facenum;
  Found_roomnum = -1;
  Found_facenum = -1;

  if (Editor_view_mode == VM_ROOM) {
    ASSERT(D3EditState.current_room != -1);
    CheckRoom(&Rooms[D3EditState.current_room]);
  } else {
    DrawAllRooms(&last_viewer_target, last_rad);
    CheckRoom(Curroomp);
  }

  EndEditorFrame();

  Search_mode = 0;

  if (Found_roomnum != -1) {
    *roomnum = Found_roomnum;
    *facenum = Found_facenum;
    return 1;
  } else
    return 0;
}

// Adds all the rooms that have a vertex inside of a given screen box to the selected list
// Parameters:	vp - the viewport we're checking.  Must be the same viewport as the last wireframe view rendered