src/town_kdtree.h

   1 /*
   2  * This file is part of OpenTTD.
   3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   4  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   6  */
   7
   8 /** @file town_kdtree.h Declarations for accessing the k-d tree of towns */
   9
  10 #ifndef TOWN_KDTREE_H
  11 #define TOWN_KDTREE_H
  12
  13 #include "core/kdtree.hpp"
  14 #include "town.h"
  15
  16 struct Kdtree_TownXYFunc {
  17         inline uint16_t operator()(TownID tid, int dim)
  18         {
  19                 return (dim == 0) ? TileX(Town::Get(tid)->xy) : TileY(Town::Get(tid)->xy);
  20         }
  21 };
  22
  23 using TownKdtree = Kdtree<TownID, Kdtree_TownXYFunc, uint16_t, int>;
  24 extern TownKdtree _town_kdtree;
  25 extern TownKdtree _town_local_authority_kdtree;
  26
  27 #endif