diff --git a/src/rail.c b/src/rail.c deleted file mode 100644 --- a/src/rail.c +++ /dev/null @@ -1,132 +0,0 @@ -/* $Id$ */ - -#include "stdafx.h" -#include "openttd.h" -#include "bridge_map.h" -#include "rail.h" -#include "station_map.h" -#include "tunnel_map.h" - -/* XXX: Below 3 tables store duplicate data. Maybe remove some? */ -/* Maps a trackdir to the bit that stores its status in the map arrays, in the - * direction along with the trackdir */ -const byte _signal_along_trackdir[] = { - 0x80, 0x80, 0x80, 0x20, 0x40, 0x10, 0, 0, - 0x40, 0x40, 0x40, 0x10, 0x80, 0x20 -}; - -/* Maps a trackdir to the bit that stores its status in the map arrays, in the - * direction against the trackdir */ -const byte _signal_against_trackdir[] = { - 0x40, 0x40, 0x40, 0x10, 0x80, 0x20, 0, 0, - 0x80, 0x80, 0x80, 0x20, 0x40, 0x10 -}; - -/* Maps a Track to the bits that store the status of the two signals that can - * be present on the given track */ -const byte _signal_on_track[] = { - 0xC0, 0xC0, 0xC0, 0x30, 0xC0, 0x30 -}; - -/* Maps a diagonal direction to the all trackdirs that are connected to any - * track entering in this direction (including those making 90 degree turns) - */ -const TrackdirBits _exitdir_reaches_trackdirs[] = { - TRACKDIR_BIT_X_NE | TRACKDIR_BIT_LOWER_E | TRACKDIR_BIT_LEFT_N, /* DIAGDIR_NE */ - TRACKDIR_BIT_Y_SE | TRACKDIR_BIT_LEFT_S | TRACKDIR_BIT_UPPER_E, /* DIAGDIR_SE */ - TRACKDIR_BIT_X_SW | TRACKDIR_BIT_UPPER_W | TRACKDIR_BIT_RIGHT_S, /* DIAGDIR_SW */ - TRACKDIR_BIT_Y_NW | TRACKDIR_BIT_RIGHT_N | TRACKDIR_BIT_LOWER_W /* DIAGDIR_NW */ -}; - -const Trackdir _next_trackdir[] = { - TRACKDIR_X_NE, TRACKDIR_Y_SE, TRACKDIR_LOWER_E, TRACKDIR_UPPER_E, TRACKDIR_RIGHT_S, TRACKDIR_LEFT_S, INVALID_TRACKDIR, INVALID_TRACKDIR, - TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_LOWER_W, TRACKDIR_UPPER_W, TRACKDIR_RIGHT_N, TRACKDIR_LEFT_N -}; - -/* Maps a trackdir to all trackdirs that make 90 deg turns with it. */ -const TrackdirBits _track_crosses_trackdirs[] = { - TRACKDIR_BIT_Y_SE | TRACKDIR_BIT_Y_NW, /* TRACK_X */ - TRACKDIR_BIT_X_NE | TRACKDIR_BIT_X_SW, /* TRACK_Y */ - TRACKDIR_BIT_RIGHT_N | TRACKDIR_BIT_RIGHT_S | TRACKDIR_BIT_LEFT_N | TRACKDIR_BIT_LEFT_S, /* TRACK_UPPER */ - TRACKDIR_BIT_RIGHT_N | TRACKDIR_BIT_RIGHT_S | TRACKDIR_BIT_LEFT_N | TRACKDIR_BIT_LEFT_S, /* TRACK_LOWER */ - TRACKDIR_BIT_UPPER_W | TRACKDIR_BIT_UPPER_E | TRACKDIR_BIT_LOWER_W | TRACKDIR_BIT_LOWER_E, /* TRACK_LEFT */ - TRACKDIR_BIT_UPPER_W | TRACKDIR_BIT_UPPER_E | TRACKDIR_BIT_LOWER_W | TRACKDIR_BIT_LOWER_E /* TRACK_RIGHT */ -}; - -/* Maps a track to all tracks that make 90 deg turns with it. */ -const TrackBits _track_crosses_tracks[] = { - TRACK_BIT_Y, /* TRACK_X */ - TRACK_BIT_X, /* TRACK_Y */ - TRACK_BIT_VERT, /* TRACK_UPPER */ - TRACK_BIT_VERT, /* TRACK_LOWER */ - TRACK_BIT_HORZ, /* TRACK_LEFT */ - TRACK_BIT_HORZ /* TRACK_RIGHT */ -}; - -/* Maps a trackdir to the (4-way) direction the tile is exited when following - * that trackdir */ -const DiagDirection _trackdir_to_exitdir[] = { - DIAGDIR_NE,DIAGDIR_SE,DIAGDIR_NE,DIAGDIR_SE,DIAGDIR_SW,DIAGDIR_SE, DIAGDIR_NE,DIAGDIR_NE, - DIAGDIR_SW,DIAGDIR_NW,DIAGDIR_NW,DIAGDIR_SW,DIAGDIR_NW,DIAGDIR_NE, -}; - -const Trackdir _track_exitdir_to_trackdir[][DIAGDIR_END] = { - {TRACKDIR_X_NE, INVALID_TRACKDIR, TRACKDIR_X_SW, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, TRACKDIR_Y_SE, INVALID_TRACKDIR, TRACKDIR_Y_NW}, - {TRACKDIR_UPPER_E, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_UPPER_W}, - {INVALID_TRACKDIR, TRACKDIR_LOWER_E, TRACKDIR_LOWER_W, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_LEFT_S, TRACKDIR_LEFT_N}, - {TRACKDIR_RIGHT_N, TRACKDIR_RIGHT_S, INVALID_TRACKDIR, INVALID_TRACKDIR} -}; - -const Trackdir _track_enterdir_to_trackdir[][DIAGDIR_END] = { // TODO: replace magic with enums - {TRACKDIR_X_NE, INVALID_TRACKDIR, TRACKDIR_X_SW, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, TRACKDIR_Y_SE, INVALID_TRACKDIR, TRACKDIR_Y_NW}, - {INVALID_TRACKDIR, TRACKDIR_UPPER_E, TRACKDIR_UPPER_W, INVALID_TRACKDIR}, - {TRACKDIR_LOWER_E, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_LOWER_W}, - {TRACKDIR_LEFT_N, TRACKDIR_LEFT_S, INVALID_TRACKDIR, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_RIGHT_S, TRACKDIR_RIGHT_N} -}; - -const Trackdir _track_direction_to_trackdir[][DIR_END] = { - {INVALID_TRACKDIR, TRACKDIR_X_NE, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_X_SW, INVALID_TRACKDIR, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_Y_SE, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_Y_NW}, - {INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_UPPER_E, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_UPPER_W, INVALID_TRACKDIR}, - {INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_LOWER_E, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_LOWER_W, INVALID_TRACKDIR}, - {TRACKDIR_LEFT_N, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_LEFT_S, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR}, - {TRACKDIR_RIGHT_N, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR, TRACKDIR_RIGHT_S, INVALID_TRACKDIR, INVALID_TRACKDIR, INVALID_TRACKDIR} -}; - -const Trackdir _dir_to_diag_trackdir[] = { - TRACKDIR_X_NE, TRACKDIR_Y_SE, TRACKDIR_X_SW, TRACKDIR_Y_NW, -}; - - -RailType GetTileRailType(TileIndex tile, Trackdir trackdir) -{ - switch (GetTileType(tile)) { - case MP_RAILWAY: - return GetRailType(tile); - - case MP_STREET: - /* rail/road crossing */ - if (IsLevelCrossing(tile)) return GetRailTypeCrossing(tile); - break; - - case MP_STATION: - if (IsRailwayStationTile(tile)) return GetRailType(tile); - break; - - case MP_TUNNELBRIDGE: - if (IsTunnel(tile)) { - if (GetTunnelTransportType(tile) == TRANSPORT_RAIL) return GetRailType(tile); - } else { - if (GetBridgeTransportType(tile) == TRANSPORT_RAIL) return GetRailType(tile); - } - break; - - default: - break; - } - return INVALID_RAILTYPE; -}