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https://github.com/JGRennison/OpenTTD-patches.git
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9474db5cb6
-Fix: desync in PBS reservation following, vehicle flooding and road vehicle overtake/follow code.
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* $Id$ */
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/** @file pbs.h PBS support routines */
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#ifndef PBS_H
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#define PBS_H
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#include "tile_type.h"
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#include "direction_type.h"
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#include "track_type.h"
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#include "vehicle_type.h"
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TrackBits GetReservedTrackbits(TileIndex t);
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void SetRailwayStationPlatformReservation(TileIndex start, DiagDirection dir, bool b);
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bool TryReserveRailTrack(TileIndex tile, Track t);
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void UnreserveRailTrack(TileIndex tile, Track t);
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/** This struct contains information about the end of a reserved path. */
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struct PBSTileInfo {
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TileIndex tile; ///< Tile the path ends, INVALID_TILE if no valid path was found.
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Trackdir trackdir; ///< The reserved trackdir on the tile.
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bool okay; ///< True if tile is a safe waiting position, false otherwise.
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PBSTileInfo() : tile(INVALID_TILE), trackdir(INVALID_TRACKDIR), okay(false) {}
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PBSTileInfo(TileIndex _t, Trackdir _td, bool _okay) : tile(_t), trackdir(_td), okay(_okay) {}
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};
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PBSTileInfo FollowTrainReservation(const Vehicle *v, bool *train_on_res = NULL);
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bool IsSafeWaitingPosition(const Vehicle *v, TileIndex tile, Trackdir trackdir, bool include_line_end, bool forbid_90deg = false);
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bool IsWaitingPositionFree(const Vehicle *v, TileIndex tile, Trackdir trackdir, bool forbid_90deg = false);
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Vehicle *GetTrainForReservation(TileIndex tile, Track track);
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/**
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* Check whether some of tracks is reserved on a tile.
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*
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* @param tile the tile
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* @param tracks the tracks to test
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* @return true if at least on of tracks is reserved
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*/
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static inline bool HasReservedTracks(TileIndex tile, TrackBits tracks)
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{
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return (GetReservedTrackbits(tile) & tracks) != TRACK_BIT_NONE;
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}
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#endif /* PBS_H */
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