src/waypoint_base.h

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file waypoint_base.h Base of waypoints. */
  11
  12 #ifndef WAYPOINT_BASE_H
  13 #define WAYPOINT_BASE_H
  14
  15 #include "base_station_base.h"
  16
  17 /** Representation of a waypoint. */
  18 struct Waypoint : SpecializedStation<Waypoint, true> {
  19         uint16 town_cn;    ///< The N-1th waypoint for this town (consecutive number)
  20
  21         /**
  22          * Create a waypoint at the given tile.
  23          * @param tile The location of the waypoint.
  24          */
  25         Waypoint(TileIndex tile = INVALID_TILE) : SpecializedStation<Waypoint, true>(tile) { }
  26         ~Waypoint();
  27
  28         void UpdateVirtCoord();
  29
  30         /* virtual */ FORCEINLINE bool TileBelongsToRailStation(TileIndex tile) const
  31         {
  32                 return IsRailWaypointTile(tile) && GetStationIndex(tile) == this->index;
  33         }
  34
  35         /* virtual */ uint32 GetNewGRFVariable(const struct ResolverObject *object, byte variable, byte parameter, bool *available) const;
  36
  37         /* virtual */ void GetTileArea(TileArea *ta, StationType type) const;
  38
  39         /* virtual */ uint GetPlatformLength(TileIndex tile, DiagDirection dir) const
  40         {
  41                 return 1;
  42         }
  43
  44         /* virtual */ uint GetPlatformLength(TileIndex tile) const
  45         {
  46                 return 1;
  47         }
  48
  49         /**
  50          * Is this a single tile waypoint?
  51          * @return true if it is.
  52          */
  53         FORCEINLINE bool IsSingleTile() const
  54         {
  55                 return (this->facilities & FACIL_TRAIN) != 0 && this->train_station.w == 1 && this->train_station.h == 1;
  56         }
  57
  58         /**
  59          * Is the "type" of waypoint the same as the given waypoint,
  60          * i.e. are both a rail waypoint or are both a buoy?
  61          * @param wp The waypoint to compare to.
  62          * @return true iff their types are equal.
  63          */
  64         FORCEINLINE bool IsOfType(const Waypoint *wp) const
  65         {
  66                 return this->string_id == wp->string_id;
  67         }
  68 };
  69
  70 /**
  71  * Iterate over all waypoints.
  72  * @param var The variable used for iteration.
  73  */
  74 #define FOR_ALL_WAYPOINTS(var) FOR_ALL_BASE_STATIONS_OF_TYPE(Waypoint, var)
  75
  76 #endif /* WAYPOINT_BASE_H */