src/road_type.h

   1 /* $Id: road_type.h 23595 2011-12-19 17:48:04Z rubidium $ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file road_type.h Enums and other types related to roads. */
  11
  12 #ifndef ROAD_TYPE_H
  13 #define ROAD_TYPE_H
  14
  15 #include "core/enum_type.hpp"
  16
  17 /**
  18  * The different roadtypes we support
  19  *
  20  * @note currently only ROADTYPE_ROAD and ROADTYPE_TRAM are supported.
  21  */
  22 enum RoadType {
  23         ROADTYPE_BEGIN = 0,      ///< Used for iterations
  24         ROADTYPE_ROAD = 0,       ///< Basic road type
  25         ROADTYPE_TRAM = 1,       ///< Trams
  26         ROADTYPE_END,            ///< Used for iterations
  27         INVALID_ROADTYPE = 0xFF, ///< flag for invalid roadtype
  28 };
  29 DECLARE_POSTFIX_INCREMENT(RoadType)
  30 template <> struct EnumPropsT<RoadType> : MakeEnumPropsT<RoadType, byte, ROADTYPE_BEGIN, ROADTYPE_END, INVALID_ROADTYPE, 2> {};
  31
  32 /**
  33  * The different roadtypes we support, but then a bitmask of them
  34  * @note currently only roadtypes with ROADTYPE_ROAD and ROADTYPE_TRAM are supported.
  35  */
  36 enum RoadTypes {
  37         ROADTYPES_NONE     = 0,                                ///< No roadtypes
  38         ROADTYPES_ROAD     = 1 << ROADTYPE_ROAD,               ///< Road
  39         ROADTYPES_TRAM     = 1 << ROADTYPE_TRAM,               ///< Trams
  40         ROADTYPES_ALL      = ROADTYPES_ROAD | ROADTYPES_TRAM,  ///< Road + trams
  41         ROADTYPES_END,                                         ///< Used for iterations?
  42         INVALID_ROADTYPES  = 0xFF,                             ///< Invalid roadtypes
  43 };
  44 DECLARE_ENUM_AS_BIT_SET(RoadTypes)
  45 template <> struct EnumPropsT<RoadTypes> : MakeEnumPropsT<RoadTypes, byte, ROADTYPES_NONE, ROADTYPES_END, INVALID_ROADTYPES, 2> {};
  46 typedef SimpleTinyEnumT<RoadTypes, byte> RoadTypesByte;
  47
  48
  49 /**
  50  * Enumeration for the road parts on a tile.
  51  *
  52  * This enumeration defines the possible road parts which
  53  * can be build on a tile.
  54  */
  55 enum RoadBits {
  56         ROAD_NONE = 0U,                  ///< No road-part is build
  57         ROAD_NW   = 1U,                  ///< North-west part
  58         ROAD_SW   = 2U,                  ///< South-west part
  59         ROAD_SE   = 4U,                  ///< South-east part
  60         ROAD_NE   = 8U,                  ///< North-east part
  61         ROAD_X    = ROAD_SW | ROAD_NE,   ///< Full road along the x-axis (south-west + north-east)
  62         ROAD_Y    = ROAD_NW | ROAD_SE,   ///< Full road along the y-axis (north-west + south-east)
  63
  64         ROAD_N    = ROAD_NE | ROAD_NW,   ///< Road at the two northern edges
  65         ROAD_E    = ROAD_NE | ROAD_SE,   ///< Road at the two eastern edges
  66         ROAD_S    = ROAD_SE | ROAD_SW,   ///< Road at the two southern edges
  67         ROAD_W    = ROAD_NW | ROAD_SW,   ///< Road at the two western edges
  68
  69         ROAD_ALL  = ROAD_X  | ROAD_Y,    ///< Full 4-way crossing
  70
  71         ROAD_END  = ROAD_ALL + 1,        ///< Out-of-range roadbits, used for iterations
  72 };
  73 DECLARE_ENUM_AS_BIT_SET(RoadBits)
  74 template <> struct EnumPropsT<RoadBits> : MakeEnumPropsT<RoadBits, byte, ROAD_NONE, ROAD_END, ROAD_NONE, 4> {};
  75
  76 #endif /* ROAD_TYPE_H */