Files
@ r7883:349f8eeb6fdf
Branch filter:
Location: cpp/openttd-patchpack/source/src/road.h
r7883:349f8eeb6fdf
6.4 KiB
text/x-c
(svn r11434) -Fix: fixed a string in finnish (suggested by ln-)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | /* $Id$ */
/** @file road.h */
#ifndef ROAD_H
#define ROAD_H
#include "helpers.hpp"
/**
* The different roadtypes we support
*
* @note currently only ROADTYPE_ROAD and ROADTYPE_TRAM are supported.
*/
enum RoadType {
ROADTYPE_ROAD = 0, ///< Basic road type
ROADTYPE_TRAM = 1, ///< Trams
ROADTYPE_HWAY = 2, ///< Only a placeholder. Not sure what we are going to do with this road type.
ROADTYPE_END, ///< Used for iterations
INVALID_ROADTYPE = 0xFF ///< flag for invalid roadtype
};
DECLARE_POSTFIX_INCREMENT(RoadType);
/**
* The different roadtypes we support, but then a bitmask of them
* @note currently only roadtypes with ROADTYPE_ROAD and ROADTYPE_TRAM are supported.
*/
enum RoadTypes {
ROADTYPES_NONE = 0, ///< No roadtypes
ROADTYPES_ROAD = 1 << ROADTYPE_ROAD, ///< Road
ROADTYPES_TRAM = 1 << ROADTYPE_TRAM, ///< Trams
ROADTYPES_HWAY = 1 << ROADTYPE_HWAY, ///< Highway (or whatever substitute)
ROADTYPES_ROADTRAM = ROADTYPES_ROAD | ROADTYPES_TRAM, ///< Road + trams
ROADTYPES_ROADHWAY = ROADTYPES_ROAD | ROADTYPES_HWAY, ///< Road + highway (or whatever substitute)
ROADTYPES_TRAMHWAY = ROADTYPES_TRAM | ROADTYPES_HWAY, ///< Trams + highway (or whatever substitute)
ROADTYPES_ALL = ROADTYPES_ROAD | ROADTYPES_TRAM | ROADTYPES_HWAY, ///< Road + trams + highway (or whatever substitute)
};
DECLARE_ENUM_AS_BIT_SET(RoadTypes);
/**
* Whether the given roadtype is valid.
* @param rt the roadtype to check for validness
* @return true if and only if valid
*/
static inline bool IsValidRoadType(RoadType rt)
{
return rt == ROADTYPE_ROAD || rt == ROADTYPE_TRAM;
}
/**
* Are the given bits pointing to valid roadtypes?
* @param rts the roadtypes to check for validness
* @return true if and only if valid
*/
static inline bool AreValidRoadTypes(RoadTypes rts)
{
return HASBIT(rts, ROADTYPE_ROAD) || HASBIT(rts, ROADTYPE_TRAM);
}
/**
* Maps a RoadType to the corresponding RoadTypes value
*
* @param rt the roadtype to get the roadtypes from
* @return the roadtypes with the given roadtype
*/
static inline RoadTypes RoadTypeToRoadTypes(RoadType rt)
{
return (RoadTypes)(1 << rt);
}
/**
* Returns the RoadTypes which are not present in the given RoadTypes
*
* This function returns the complement of a given RoadTypes.
*
* @param r The given RoadTypes
* @return The complement of the given RoadTypes
* @note The unused value ROADTYPES_HWAY will be used, too.
*/
static inline RoadTypes ComplementRoadTypes(RoadTypes r)
{
return (RoadTypes)(ROADTYPES_ALL ^ r);
}
/**
* Enumeration for the road parts on a tile.
*
* This enumeration defines the possible road parts which
* can be build on a tile.
*/
enum RoadBits {
ROAD_NONE = 0U, ///< No road-part is build
ROAD_NW = 1U, ///< North-west part
ROAD_SW = 2U, ///< South-west part
ROAD_SE = 4U, ///< South-east part
ROAD_NE = 8U, ///< North-east part
ROAD_X = ROAD_SW | ROAD_NE, ///< Full road along the x-axis (south-west + north-east)
ROAD_Y = ROAD_NW | ROAD_SE, ///< Full road along the y-axis (north-west + south-east)
ROAD_ALL = ROAD_X | ROAD_Y ///< Full 4-way crossing
};
DECLARE_ENUM_AS_BIT_SET(RoadBits);
/**
* Calculate the complement of a RoadBits value
*
* Simply flips all bits in the RoadBits value to get the complement
* of the RoadBits.
*
* @param r The given RoadBits value
* @return the complement
*/
static inline RoadBits ComplementRoadBits(RoadBits r)
{
return (RoadBits)(ROAD_ALL ^ r);
}
/**
* Calculate the mirrored RoadBits
*
* Simply move the bits to their new position.
*
* @param r The given RoadBits value
* @return the mirrored
*/
static inline RoadBits MirrorRoadBits(RoadBits r)
{
return (RoadBits)(GB(r, 0, 2) << 2 | GB(r, 2, 2));
}
/**
* Calculate rotated RoadBits
*
* Move the Roadbits clockwise til they are in their final position.
*
* @param r The given RoadBits value
* @param rot The given Rotation angle
* @return the rotated
*/
static inline RoadBits RotateRoadBits(RoadBits r, DiagDirDiff rot)
{
for (; rot > (DiagDirDiff)0; rot--){
r = (RoadBits)(GB(r, 0, 1) << 3 | GB(r, 1, 3));
}
return r;
}
/**
* Create the road-part which belongs to the given DiagDirection
*
* This function returns a RoadBits value which belongs to
* the given DiagDirection.
*
* @param d The DiagDirection
* @return The result RoadBits which the selected road-part set
*/
static inline RoadBits DiagDirToRoadBits(DiagDirection d)
{
return (RoadBits)(ROAD_NW << (3 ^ d));
}
/**
* Return if the tile is a valid tile for a crossing.
*
* @note function is overloaded
* @param tile the curent tile
* @param ax the axis of the road over the rail
* @return true if it is a valid tile
*/
bool IsPossibleCrossing(const TileIndex tile, Axis ax);
/**
* Checks whether the trackdir means that we are reversing.
* @param dir the trackdir to check
* @return true if it is a reversing road trackdir
*/
static inline bool IsReversingRoadTrackdir(Trackdir dir)
{
return (dir & 0x07) >= 6;
}
/**
* Checks whether the given trackdir is a straight road
* @param dir the trackdir to check
* @return true if it is a straight road trackdir
*/
static inline bool IsStraightRoadTrackdir(Trackdir dir)
{
return (dir & 0x06) == 0;
}
/**
* Clean up unneccesary RoadBits of a planed tile.
* @param tile current tile
* @param org_rb planed RoadBits
* @return optimised RoadBits
*/
RoadBits CleanUpRoadBits(const TileIndex tile, RoadBits org_rb);
/**
* Is it allowed to remove the given road bits from the given tile?
* @param tile the tile to remove the road from
* @param remove the roadbits that are going to be removed
* @param owner the actual owner of the roadbits of the tile
* @param edge_road are the removed bits from a town?
* @param rt the road type to remove the bits from
* @return true when it is allowed to remove the road bits
*/
bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, bool *edge_road, RoadType rt);
/**
* Draw the catenary for tram road bits
* @param ti information about the tile (position, slope)
* @param tram the roadbits to draw the catenary for
*/
void DrawTramCatenary(TileInfo *ti, RoadBits tram);
#endif /* ROAD_H */
|