41 lines
996 B
C
41 lines
996 B
C
/* $Id$ */
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/** @file signal_func.h Functions related to signals. */
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#ifndef SIGNAL_FUNC_H
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#define SIGNAL_FUNC_H
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#include "track_type.h"
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/**
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* Maps a trackdir to the bit that stores its status in the map arrays, in the
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* direction along with the trackdir.
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*/
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static inline byte SignalAlongTrackdir(Trackdir trackdir)
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{
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extern const byte _signal_along_trackdir[TRACKDIR_END];
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return _signal_along_trackdir[trackdir];
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}
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/**
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* Maps a trackdir to the bit that stores its status in the map arrays, in the
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* direction against the trackdir.
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*/
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static inline byte SignalAgainstTrackdir(Trackdir trackdir)
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{
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extern const byte _signal_against_trackdir[TRACKDIR_END];
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return _signal_against_trackdir[trackdir];
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}
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/**
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* Maps a Track to the bits that store the status of the two signals that can
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* be present on the given track.
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*/
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static inline byte SignalOnTrack(Track track)
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{
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extern const byte _signal_on_track[TRACK_END];
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return _signal_on_track[track];
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}
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#endif /* SIGNAL_FUNC_H */
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