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/* $Id$ */
/*
* 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/>.
*/
/** @file track_type.h All types related to tracks */
#ifndef TRACK_TYPE_H
#define TRACK_TYPE_H
#include "core/enum_type.hpp"
/**
* These are used to specify a single track.
* Can be translated to a trackbit with TrackToTrackbit
*/
enum Track {
TRACK_BEGIN = 0, ///< Used for iterations
TRACK_X = 0, ///< Track along the x-axis (north-east to south-west)
TRACK_Y = 1, ///< Track along the y-axis (north-west to south-east)
TRACK_UPPER = 2, ///< Track in the upper corner of the tile (north)
TRACK_LOWER = 3, ///< Track in the lower corner of the tile (south)
TRACK_LEFT = 4, ///< Track in the left corner of the tile (west)
TRACK_RIGHT = 5, ///< Track in the right corner of the tile (east)
TRACK_END, ///< Used for iterations
INVALID_TRACK = 0xFF ///< Flag for an invalid track
};
/** Allow incrementing of Track variables */
DECLARE_POSTFIX_INCREMENT(Track)
/** Define basic enum properties */
template <> struct EnumPropsT<Track> : MakeEnumPropsT<Track, byte, TRACK_BEGIN, TRACK_END, INVALID_TRACK, 3> {};
typedef TinyEnumT<Track> TrackByte;
/** Bitfield corresponding to Track */
enum TrackBits {
TRACK_BIT_NONE = 0U, ///< No track
TRACK_BIT_X = 1U << TRACK_X, ///< X-axis track
TRACK_BIT_Y = 1U << TRACK_Y, ///< Y-axis track
TRACK_BIT_UPPER = 1U << TRACK_UPPER, ///< Upper track
TRACK_BIT_LOWER = 1U << TRACK_LOWER, ///< Lower track
TRACK_BIT_LEFT = 1U << TRACK_LEFT, ///< Left track
TRACK_BIT_RIGHT = 1U << TRACK_RIGHT, ///< Right track
TRACK_BIT_CROSS = TRACK_BIT_X | TRACK_BIT_Y, ///< X-Y-axis cross
TRACK_BIT_HORZ = TRACK_BIT_UPPER | TRACK_BIT_LOWER, ///< Upper and lower track
TRACK_BIT_VERT = TRACK_BIT_LEFT | TRACK_BIT_RIGHT, ///< Left and right track
TRACK_BIT_3WAY_NE = TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_RIGHT,///< "Arrow" to the north-east
TRACK_BIT_3WAY_SE = TRACK_BIT_Y | TRACK_BIT_LOWER | TRACK_BIT_RIGHT,///< "Arrow" to the south-east
TRACK_BIT_3WAY_SW = TRACK_BIT_X | TRACK_BIT_LOWER | TRACK_BIT_LEFT, ///< "Arrow" to the south-west
TRACK_BIT_3WAY_NW = TRACK_BIT_Y | TRACK_BIT_UPPER | TRACK_BIT_LEFT, ///< "Arrow" to the north-west
TRACK_BIT_ALL = TRACK_BIT_CROSS | TRACK_BIT_HORZ | TRACK_BIT_VERT, ///< All possible tracks
TRACK_BIT_MASK = 0x3FU, ///< Bitmask for the first 6 bits
TRACK_BIT_WORMHOLE = 0x40U, ///< Bitflag for a wormhole (used for tunnels)
TRACK_BIT_DEPOT = 0x80U, ///< Bitflag for a depot
INVALID_TRACK_BIT = 0xFF ///< Flag for an invalid trackbits value
};
DECLARE_ENUM_AS_BIT_SET(TrackBits)
typedef SimpleTinyEnumT<TrackBits, byte> TrackBitsByte;
/**
* Enumeration for tracks and directions.
*
* These are a combination of tracks and directions. Values are 0-5 in one
* direction (corresponding to the Track enum) and 8-13 in the other direction.
* 6, 7, 14 and 15 are used to encode the reversing of road vehicles. Those
* reversing track dirs are not considered to be 'valid' except in a small
* corner in the road vehicle controller.
*/
enum Trackdir {
TRACKDIR_BEGIN = 0, ///< Used for iterations
TRACKDIR_X_NE = 0, ///< X-axis and direction to north-east
TRACKDIR_Y_SE = 1, ///< Y-axis and direction to south-east
TRACKDIR_UPPER_E = 2, ///< Upper track and direction to east
TRACKDIR_LOWER_E = 3, ///< Lower track and direction to east
TRACKDIR_LEFT_S = 4, ///< Left track and direction to south
TRACKDIR_RIGHT_S = 5, ///< Right track and direction to south
TRACKDIR_RVREV_NE = 6, ///< (Road vehicle) reverse direction north-east
TRACKDIR_RVREV_SE = 7, ///< (Road vehicle) reverse direction south-east
TRACKDIR_X_SW = 8, ///< X-axis and direction to south-west
TRACKDIR_Y_NW = 9, ///< Y-axis and direction to north-west
TRACKDIR_UPPER_W = 10, ///< Upper track and direction to west
TRACKDIR_LOWER_W = 11, ///< Lower track and direction to west
TRACKDIR_LEFT_N = 12, ///< Left track and direction to north
TRACKDIR_RIGHT_N = 13, ///< Right track and direction to north
TRACKDIR_RVREV_SW = 14, ///< (Road vehicle) reverse direction south-west
TRACKDIR_RVREV_NW = 15, ///< (Road vehicle) reverse direction north-west
TRACKDIR_END, ///< Used for iterations
INVALID_TRACKDIR = 0xFF, ///< Flag for an invalid trackdir
};
/** Define basic enum properties */
template <> struct EnumPropsT<Trackdir> : MakeEnumPropsT<Trackdir, byte, TRACKDIR_BEGIN, TRACKDIR_END, INVALID_TRACKDIR, 4> {};
typedef TinyEnumT<Trackdir> TrackdirByte;
/**
* Enumeration of bitmasks for the TrackDirs
*
* These are a combination of tracks and directions. Values are 0-5 in one
* direction (corresponding to the Track enum) and 8-13 in the other direction.
*/
enum TrackdirBits {
TRACKDIR_BIT_NONE = 0x0000, ///< No track build
TRACKDIR_BIT_X_NE = 0x0001, ///< Track x-axis, direction north-east
TRACKDIR_BIT_Y_SE = 0x0002, ///< Track y-axis, direction south-east
TRACKDIR_BIT_UPPER_E = 0x0004, ///< Track upper, direction east
TRACKDIR_BIT_LOWER_E = 0x0008, ///< Track lower, direction east
TRACKDIR_BIT_LEFT_S = 0x0010, ///< Track left, direction south
TRACKDIR_BIT_RIGHT_S = 0x0020, ///< Track right, direction south
/* Again, note the two missing values here. This enables trackdir -> track conversion by doing (trackdir & 0xFF) */
TRACKDIR_BIT_X_SW = 0x0100, ///< Track x-axis, direction south-west
TRACKDIR_BIT_Y_NW = 0x0200, ///< Track y-axis, direction north-west
TRACKDIR_BIT_UPPER_W = 0x0400, ///< Track upper, direction west
TRACKDIR_BIT_LOWER_W = 0x0800, ///< Track lower, direction west
TRACKDIR_BIT_LEFT_N = 0x1000, ///< Track left, direction north
TRACKDIR_BIT_RIGHT_N = 0x2000, ///< Track right, direction north
TRACKDIR_BIT_MASK = 0x3F3F, ///< Bitmask for bit-operations
INVALID_TRACKDIR_BIT = 0xFFFF, ///< Flag for an invalid trackdirbit value
};
DECLARE_ENUM_AS_BIT_SET(TrackdirBits)
typedef SimpleTinyEnumT<TrackdirBits, uint16> TrackdirBitsShort;
typedef uint32 TrackStatus;
#endif /* TRACK_TYPE_H */
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