mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-11 13:10:45 +00:00
216 lines
9.2 KiB
C++
216 lines
9.2 KiB
C++
/* $Id$ */
|
|
|
|
/** @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
|
|
};
|
|
|
|
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;
|
|
}
|