pbs.h

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#ifndef PBS_H
#define PBS_H
 
#include "tile_type.h"
#include "direction_type.h"
#include "track_type.h"
#include "vehicle_type.h"
 
TrackBits GetReservedTrackbits(TileIndex t);
 
void SetRailStationPlatformReservation(TileIndex start, DiagDirection dir, bool b);
 
bool TryReserveRailTrack(TileIndex tile, Track t, bool trigger_stations = true);
void UnreserveRailTrack(TileIndex tile, Track t);
 
struct PBSTileInfo {
  TileIndex tile;      
  Trackdir  trackdir;  
  bool      okay;      
 
  PBSTileInfo() : tile(INVALID_TILE), trackdir(INVALID_TRACKDIR), okay(false) {}
 
  PBSTileInfo(TileIndex _t, Trackdir _td, bool _okay) : tile(_t), trackdir(_td), okay(_okay) {}
};
 
PBSTileInfo FollowTrainReservation(const Train *v, Vehicle **train_on_res = nullptr);
bool IsSafeWaitingPosition(const Train *v, TileIndex tile, Trackdir trackdir, bool include_line_end, bool forbid_90deg = false);
bool IsWaitingPositionFree(const Train *v, TileIndex tile, Trackdir trackdir, bool forbid_90deg = false);
 
Train *GetTrainForReservation(TileIndex tile, Track track);
 
inline bool HasReservedTracks(TileIndex tile, TrackBits tracks)
{
  return (GetReservedTrackbits(tile) & tracks) != TRACK_BIT_NONE;
}
 
#endif /* PBS_H */