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(svn r2454) * Codechange: Move #include "stdafx.h" and "openttd.h" from rail.h to rail.c

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* Codechange: Move declaration of lookup arrays into the functions that need them. This doesn't pollute the global namespace with the array names.
* Add: rail.h to the openttd.vcproj and openttd.dsp for MSVC.
This commit is contained in:
matthijs
2005-06-17 11:30:50 +00:00
parent 3c133f1f53
commit 958df2b229
4 changed files with 81 additions and 44 deletions
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83
rail.h
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@@ -1,8 +1,6 @@
#ifndef RAIL_H
#define RAIL_H
#include "stdafx.h"
#include "openttd.h"
#include "tile.h"
/*
@@ -95,7 +93,8 @@ typedef enum Trackdirs {
TRACKDIR_LOWER_E = 3,
TRACKDIR_LEFT_S = 4,
TRACKDIR_RIGHT_S = 5,
/* Note the two missing values here. This enables trackdir -> track conversion by doing (trackdir & 7) */
/* Note the two missing values here. This enables trackdir -> track
* conversion by doing (trackdir & 7) */
TRACKDIR_DIAG1_SW = 8,
TRACKDIR_DIAG2_NW = 9,
TRACKDIR_UPPER_W = 10,
@@ -136,12 +135,17 @@ typedef enum SignalStates {
} SignalState;
/**
* Maps a Trackdir to the corresponding TrackdirBits value
*/
static inline TrackdirBits TrackdirToTrackdirBits(Trackdir trackdir) { return (TrackdirBits)(1 << trackdir); }
/*
* These functions check the validity of Tracks and Trackdirs. assert against
* them when convenient.
*/
static inline bool IsValidTrack(Track track) { return track < TRACK_END; }
static inline bool IsValidTrackdir(Trackdir trackdir) { return trackdir < TRACKDIR_END; }
static inline bool IsValidTrackdir(Trackdir trackdir) { return (TrackdirToTrackdirBits(trackdir) & TRACKDIR_BIT_MASK) != 0; }
/*
* Functions to map tracks to the corresponding bits in the signal
@@ -160,15 +164,19 @@ static inline byte SignalAlongTrackdir(Trackdir trackdir) {return _signal_along_
* Maps a trackdir to the bit that stores its status in the map arrays, in the
* direction against the trackdir.
*/
extern const byte _signal_against_trackdir[TRACKDIR_END];
static inline byte SignalAgainstTrackdir(Trackdir trackdir) { return _signal_against_trackdir[trackdir]; }
static inline byte SignalAgainstTrackdir(Trackdir trackdir) {
extern const byte _signal_against_trackdir[TRACKDIR_END];
return _signal_against_trackdir[trackdir];
}
/**
* Maps a Track to the bits that store the status of the two signals that can
* be present on the given track.
*/
extern const byte _signal_on_track[TRACK_END];
static inline byte SignalOnTrack(Track track) { return _signal_on_track[track]; }
static inline byte SignalOnTrack(Track track) {
extern const byte _signal_on_track[TRACK_END];
return _signal_on_track[track];
}
/*
* Some functions to query rail tiles
@@ -247,13 +255,10 @@ static inline bool HasTrack(TileIndex tile, Track track)
/**
* Maps a trackdir to the reverse trackdir.
*/
extern const Trackdir _reverse_trackdir[TRACKDIR_END];
static inline Trackdir ReverseTrackdir(Trackdir trackdir) { return _reverse_trackdir[trackdir]; }
/**
* Maps a Trackdir to the corresponding TrackdirBits value
*/
static inline TrackdirBits TrackdirToTrackdirBits(Trackdir trackdir) { return (TrackdirBits)(1 << trackdir); }
static inline Trackdir ReverseTrackdir(Trackdir trackdir) {
extern const Trackdir _reverse_trackdir[TRACKDIR_END];
return _reverse_trackdir[trackdir];
}
/*
* Maps a Track to the corresponding TrackBits value
@@ -280,42 +285,54 @@ static inline TrackdirBits TrackToTrackdirBits(Track track) { Trackdir td = Trac
* ahead. This will be the same trackdir for diagonal trackdirs, but a
* different (alternating) one for straight trackdirs
*/
extern const Trackdir _next_trackdir[TRACKDIR_END];
static inline Trackdir NextTrackdir(Trackdir trackdir) { return _next_trackdir[trackdir]; }
static inline Trackdir NextTrackdir(Trackdir trackdir) {
extern const Trackdir _next_trackdir[TRACKDIR_END];
return _next_trackdir[trackdir];
}
/**
* Maps a track to all tracks that make 90 deg turns with it.
*/
extern const TrackBits _track_crosses_tracks[TRACK_END];
static inline TrackBits TrackCrossesTracks(Track track) { return _track_crosses_tracks[track]; }
static inline TrackBits TrackCrossesTracks(Track track) {
extern const TrackBits _track_crosses_tracks[TRACK_END];
return _track_crosses_tracks[track];
}
/**
* Maps a trackdir to the (4-way) direction the tile is exited when following
* that trackdir.
*/
extern const DiagDirection _trackdir_to_exitdir[TRACKDIR_END];
static inline DiagDirection TrackdirToExitdir(Trackdir trackdir) { return _trackdir_to_exitdir[trackdir]; }
static inline DiagDirection TrackdirToExitdir(Trackdir trackdir) {
extern const DiagDirection _trackdir_to_exitdir[TRACKDIR_END];
return _trackdir_to_exitdir[trackdir];
}
/**
* Maps a track and an (4-way) dir to the trackdir that represents the track
* with the exit in the given direction.
*/
extern const Trackdir _track_exitdir_to_trackdir[TRACK_END][DIAGDIR_END];
static inline Trackdir TrackExitdirToTrackdir(Track track, DiagDirection diagdir) { return _track_exitdir_to_trackdir[track][diagdir]; }
static inline Trackdir TrackExitdirToTrackdir(Track track, DiagDirection diagdir) {
extern const Trackdir _track_exitdir_to_trackdir[TRACK_END][DIAGDIR_END];
return _track_exitdir_to_trackdir[track][diagdir];
}
/**
* Maps a track and a full (8-way) direction to the trackdir that represents
* the track running in the given direction.
*/
extern const Trackdir _track_direction_to_trackdir[TRACK_END][DIR_END];
static inline Trackdir TrackDirectionToTrackdir(Track track, Direction dir) { return _track_direction_to_trackdir[track][dir]; }
static inline Trackdir TrackDirectionToTrackdir(Track track, Direction dir) {
extern const Trackdir _track_direction_to_trackdir[TRACK_END][DIR_END];
return _track_direction_to_trackdir[track][dir];
}
/**
* Maps a (4-way) direction to the diagonal trackdir that runs in that
* direction.
*/
extern const Trackdir _dir_to_diag_trackdir[DIAGDIR_END];
static inline Trackdir DiagdirToDiagTrackdir(DiagDirection diagdir) { return _dir_to_diag_trackdir[diagdir]; }
static inline Trackdir DiagdirToDiagTrackdir(DiagDirection diagdir) {
extern const Trackdir _dir_to_diag_trackdir[DIAGDIR_END];
return _dir_to_diag_trackdir[diagdir];
}
/**
* Maps a trackdir to the trackdirs that can be reached from it (ie, when
@@ -329,14 +346,18 @@ static inline TrackdirBits TrackdirReachesTrackdirs(Trackdir trackdir) { return
/**
* Maps a trackdir to all trackdirs that make 90 deg turns with it.
*/
extern const TrackdirBits _track_crosses_trackdirs[TRACKDIR_END];
static inline TrackdirBits TrackdirCrossesTrackdirs(Trackdir trackdir) { return _track_crosses_trackdirs[TrackdirToTrack(trackdir)]; }
static inline TrackdirBits TrackdirCrossesTrackdirs(Trackdir trackdir) {
extern const TrackdirBits _track_crosses_trackdirs[TRACKDIR_END];
return _track_crosses_trackdirs[TrackdirToTrack(trackdir)];
}
/**
* Maps a (4-way) direction to the reverse.
*/
extern const DiagDirection _reverse_diagdir[DIAGDIR_END];
static inline DiagDirection ReverseDiagdir(DiagDirection diagdir) { return _reverse_diagdir[diagdir]; }
static inline DiagDirection ReverseDiagdir(DiagDirection diagdir) {
extern const DiagDirection _reverse_diagdir[DIAGDIR_END];
return _reverse_diagdir[diagdir];
}
/* Checks if a given Track is diagonal */
static inline bool IsDiagonalTrack(Track track) { return (track == TRACK_DIAG1) || (track == TRACK_DIAG2); }