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Location: cpp/openttd-patchpack/source/src/rail.cpp - annotation
r9791:31e4907f014d
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(svn r13933) -Codechange [YAPP]: Handle through and PBS signals correctly in the signal code. (michi_cc)
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r8236:a2ecfe92ab23 r8236:a2ecfe92ab23 r8236:a2ecfe92ab23 | /* $Id$ */
/** @file rail.cpp Implementation of rail specific functions. */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "rail.h"
#include "station_map.h"
#include "tunnel_map.h"
#include "tunnelbridge_map.h"
#include "settings_type.h"
#include "date_func.h"
#include "player_func.h"
#include "player_base.h"
#include "engine_func.h"
#include "engine_base.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 */
extern const byte _signal_along_trackdir[TRACKDIR_END] = {
0x8, 0x8, 0x8, 0x2, 0x4, 0x1, 0, 0,
0x4, 0x4, 0x4, 0x1, 0x8, 0x2
};
/* 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] = {
0x4, 0x4, 0x4, 0x1, 0x8, 0x2, 0, 0,
0x8, 0x8, 0x8, 0x2, 0x4, 0x1
};
/* 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[] = {
0xC, 0xC, 0xC, 0x3, 0xC, 0x3
};
/* Maps a diagonal direction to the all trackdirs that are connected to any
* track entering in this direction (including those making 90 degree turns)
*/
extern 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 */
};
extern const Trackdir _next_trackdir[TRACKDIR_END] = {
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. */
extern const TrackdirBits _track_crosses_trackdirs[TRACKDIR_END] = {
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. */
extern 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 */
extern const DiagDirection _trackdir_to_exitdir[TRACKDIR_END] = {
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,
};
extern 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}
};
extern const Trackdir _track_enterdir_to_trackdir[][DIAGDIR_END] = {
{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}
};
extern 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}
};
extern const Trackdir _dir_to_diag_trackdir[] = {
TRACKDIR_X_NE, TRACKDIR_Y_SE, TRACKDIR_X_SW, TRACKDIR_Y_NW,
};
extern const TrackBits _corner_to_trackbits[] = {
TRACK_BIT_LEFT, TRACK_BIT_LOWER, TRACK_BIT_RIGHT, TRACK_BIT_UPPER,
};
extern const TrackdirBits _uphill_trackdirs[] = {
TRACKDIR_BIT_NONE , ///< 0 SLOPE_FLAT
TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_NW, ///< 1 SLOPE_W -> inclined for diagonal track
TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_SE, ///< 2 SLOPE_S -> inclined for diagonal track
TRACKDIR_BIT_X_SW , ///< 3 SLOPE_SW
TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_SE, ///< 4 SLOPE_E -> inclined for diagonal track
TRACKDIR_BIT_NONE , ///< 5 SLOPE_EW
TRACKDIR_BIT_Y_SE , ///< 6 SLOPE_SE
TRACKDIR_BIT_NONE , ///< 7 SLOPE_WSE -> leveled
TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_NW, ///< 8 SLOPE_N -> inclined for diagonal track
TRACKDIR_BIT_Y_NW , ///< 9 SLOPE_NW
TRACKDIR_BIT_NONE , ///< 10 SLOPE_NS
TRACKDIR_BIT_NONE , ///< 11 SLOPE_NWS -> leveled
TRACKDIR_BIT_X_NE , ///< 12 SLOPE_NE
TRACKDIR_BIT_NONE , ///< 13 SLOPE_ENW -> leveled
TRACKDIR_BIT_NONE , ///< 14 SLOPE_SEN -> leveled
TRACKDIR_BIT_NONE , ///< 15 invalid
TRACKDIR_BIT_NONE , ///< 16 invalid
TRACKDIR_BIT_NONE , ///< 17 invalid
TRACKDIR_BIT_NONE , ///< 18 invalid
TRACKDIR_BIT_NONE , ///< 19 invalid
TRACKDIR_BIT_NONE , ///< 20 invalid
TRACKDIR_BIT_NONE , ///< 21 invalid
TRACKDIR_BIT_NONE , ///< 22 invalid
TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_SE, ///< 23 SLOPE_STEEP_S -> inclined for diagonal track
TRACKDIR_BIT_NONE , ///< 24 invalid
TRACKDIR_BIT_NONE , ///< 25 invalid
TRACKDIR_BIT_NONE , ///< 26 invalid
TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_NW, ///< 27 SLOPE_STEEP_W -> inclined for diagonal track
TRACKDIR_BIT_NONE , ///< 28 invalid
TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_NW, ///< 29 SLOPE_STEEP_N -> inclined for diagonal track
TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_SE, ///< 30 SLOPE_STEEP_E -> inclined for diagonal track
};
/* The default multiplier for the cost of building different types of railway
* track, which will be divided by 8. Can be changed by newgrf files. */
const int _default_railtype_cost_multiplier[RAILTYPE_END] = {
8, 12, 16, 24,
};
int _railtype_cost_multiplier[RAILTYPE_END];
RailType GetTileRailType(TileIndex tile)
{
switch (GetTileType(tile)) {
case MP_RAILWAY:
return GetRailType(tile);
case MP_ROAD:
/* rail/road crossing */
if (IsLevelCrossing(tile)) return GetRailType(tile);
break;
case MP_STATION:
if (IsRailwayStationTile(tile)) return GetRailType(tile);
break;
case MP_TUNNELBRIDGE:
if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) return GetRailType(tile);
break;
default:
break;
}
return INVALID_RAILTYPE;
}
bool HasRailtypeAvail(const PlayerID p, const RailType railtype)
{
return HasBit(GetPlayer(p)->avail_railtypes, railtype);
}
bool ValParamRailtype(const RailType rail)
{
return HasRailtypeAvail(_current_player, rail);
}
RailType GetBestRailtype(const PlayerID p)
{
if (HasRailtypeAvail(p, RAILTYPE_MAGLEV)) return RAILTYPE_MAGLEV;
if (HasRailtypeAvail(p, RAILTYPE_MONO)) return RAILTYPE_MONO;
if (HasRailtypeAvail(p, RAILTYPE_ELECTRIC)) return RAILTYPE_ELECTRIC;
return RAILTYPE_RAIL;
}
RailTypes GetPlayerRailtypes(PlayerID p)
{
RailTypes rt = RAILTYPES_NONE;
Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
const EngineInfo *ei = &e->info;
if (HasBit(ei->climates, _settings_game.game_creation.landscape) &&
(HasBit(e->player_avail, p) || _date >= e->intro_date + 365)) {
const RailVehicleInfo *rvi = &e->u.rail;
if (rvi->railveh_type != RAILVEH_WAGON) {
assert(rvi->railtype < RAILTYPE_END);
SetBit(rt, rvi->railtype);
}
}
}
return rt;
}
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