Example #1
0
void CopyPastePlaceRailWaypoint(GenericTileIndex tile, StationID sid, Axis axis, RailType rt, StationGfx gfx, StationClassID stat_class, byte stat_type, int specindex, bool adjacent)
{
	if (IsMainMapTile(tile)) {
		TileIndex t = AsMainMapTile(tile);
		/* check if required track is already there, try to build one if not */
		if (!IsTileOwner(t, _current_company) ||
				(!IsRailWaypointTile(tile) && !IsPlainRailTile(tile)) ||
				GetRailType(t) != rt ||
				(IsTileType(t, MP_STATION) ? GetRailStationAxis(tile) != axis : !HasBit(GetTrackBits(t), AxisToTrack(axis)))) {
			CopyPastePlaceTracks(tile, rt, AxisToTrackBits(axis));
			if (_current_pasting->last_result.Failed()) return;
		}
		/* build the waypoint */
		_station_cmd_specindex_to_paste = specindex;
		uint32 p1 = 0;
		SB(p1, 0, 4, rt);
		SB(p1, 4, 1, axis);
		SB(p1, 8, 8, 1);  // width
		SB(p1, 16, 8, 1); // height
		SB(p1, 24, 1, adjacent);
		uint32 p2 = 0;
		SB(p2, 0, 8, stat_class);
		SB(p2, 8, 8, stat_type);
		SB(p2, 16, 16, sid);
		_current_pasting->DoCommand(t, p1, p2, CMD_BUILD_RAIL_WAYPOINT | CMD_MSG(STR_ERROR_CAN_T_BUILD_TRAIN_WAYPOINT));
	} else {
		MakeRailWaypoint(tile, OWNER_NONE, sid, axis, gfx & ~1, rt);
		assert(IsInsideMM(specindex, 0, MAX_UVALUE(byte) + 1));
		SetCustomStationSpecIndex(tile, (byte)specindex);
		_clipboard_stations_builder.AddRailPart(sid, stat_class, stat_type, (byte)specindex);
	}
}
Example #2
0
	ETileArea(const BaseStation *st, TileIndex tile, TriggerArea ta)
	{
		switch (ta) {
			default: NOT_REACHED();

			case TA_TILE:
				this->tile = tile;
				this->w    = 1;
				this->h    = 1;
				break;

			case TA_PLATFORM: {
				TileIndex start, end;
				Axis axis = GetRailStationAxis(tile);
				TileIndexDiff delta = TileOffsByDiagDir(AxisToDiagDir(axis));

				for (end = tile; IsRailStationTile(end + delta) && IsCompatibleTrainStationTile(end + delta, tile); end += delta) { /* Nothing */ }
				for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(start - delta, tile); start -= delta) { /* Nothing */ }

				this->tile = start;
				this->w = TileX(end) - TileX(start) + 1;
				this->h = TileY(end) - TileY(start) + 1;
				break;
			}

			case TA_WHOLE:
				st->GetTileArea(this, Station::IsExpected(st) ? STATION_RAIL : STATION_WAYPOINT);
				break;
		}
	}
Example #3
0
/**
 * Find the end of a railway station, from the \a tile, in the direction of \a delta.
 * @param tile Start tile.
 * @param delta Movement direction.
 * @param check_type Stop when the custom station type changes.
 * @param check_axis Stop when the station direction changes.
 * @return Found end of the railway station.
 */
static TileIndex FindRailStationEnd(TileIndex tile, TileIndexDiff delta, bool check_type, bool check_axis)
{
	byte orig_type = 0;
	Axis orig_axis = AXIS_X;
	StationID sid = GetStationIndex(tile);

	if (check_type) orig_type = GetCustomStationSpecIndex(tile);
	if (check_axis) orig_axis = GetRailStationAxis(tile);

	for (;;) {
		TileIndex new_tile = TILE_ADD(tile, delta);

		if (!IsTileType(new_tile, MP_STATION) || GetStationIndex(new_tile) != sid) break;
		if (!HasStationRail(new_tile)) break;
		if (check_type && GetCustomStationSpecIndex(new_tile) != orig_type) break;
		if (check_axis && GetRailStationAxis(new_tile) != orig_axis) break;

		tile = new_tile;
	}
	return tile;
}
Example #4
0
/**
 * Get the axis for a new waypoint. This means that if it is a valid
 * tile to build a waypoint on it returns a valid Axis, otherwise an
 * invalid one.
 * @param tile the tile to look at.
 * @return the axis for the to-be-build waypoint.
 */
Axis GetAxisForNewWaypoint(TileIndex tile)
{
	/* The axis for rail waypoints is easy. */
	if (IsRailWaypointTile(tile)) return GetRailStationAxis(tile);

	/* Non-plain rail type, no valid axis for waypoints. */
	if (!IsTileType(tile, MP_RAILWAY) || GetRailTileType(tile) != RAIL_TILE_NORMAL) return INVALID_AXIS;

	switch (GetTrackBits(tile)) {
		case TRACK_BIT_X: return AXIS_X;
		case TRACK_BIT_Y: return AXIS_Y;
		default:          return INVALID_AXIS;
	}
}
Example #5
0
static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
{
	int tx = TileX(tile);
	int ty = TileY(tile);
	int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1,  0), check_type, check_axis));
	int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
	int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1,  0), check_type, check_axis)) + 1;
	int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0,  1), check_type, check_axis)) + 1;

	tx -= sx; ex -= sx;
	ty -= sy; ey -= sy;

	return GetPlatformInfo(GetRailStationAxis(tile), GetStationGfx(tile), ex, ey, tx, ty, centred);
}
Example #6
0
/* virtual */ uint Station::GetPlatformLength(TileIndex tile) const
{
	assert(this->TileBelongsToRailStation(tile));

	TileIndexDiff delta = (GetRailStationAxis(tile) == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));

	TileIndex t = tile;
	uint len = 0;
	do {
		t -= delta;
		len++;
	} while (IsCompatibleTrainStationTile(t, tile));

	t = tile;
	do {
		t += delta;
		len++;
	} while (IsCompatibleTrainStationTile(t, tile));

	return len - 1;
}
Example #7
0
static uint32 GetRailContinuationInfo(TileIndex tile)
{
	/* Tile offsets and exit dirs for X axis */
	static const Direction x_dir[8] = { DIR_SW, DIR_NE, DIR_SE, DIR_NW, DIR_S, DIR_E, DIR_W, DIR_N };
	static const DiagDirection x_exits[8] = { DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SW, DIAGDIR_NE };

	/* Tile offsets and exit dirs for Y axis */
	static const Direction y_dir[8] = { DIR_SE, DIR_NW, DIR_SW, DIR_NE, DIR_S, DIR_W, DIR_E, DIR_N };
	static const DiagDirection y_exits[8] = { DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_NW };

	Axis axis = GetRailStationAxis(tile);

	/* Choose appropriate lookup table to use */
	const Direction *dir = axis == AXIS_X ? x_dir : y_dir;
	const DiagDirection *diagdir = axis == AXIS_X ? x_exits : y_exits;

	uint32 res = 0;
	uint i;

	for (i = 0; i < lengthof(x_dir); i++, dir++, diagdir++) {
		TileIndex neighbour_tile = tile + TileOffsByDir(*dir);
		TrackBits trackbits = TrackStatusToTrackBits(GetTileTrackStatus(neighbour_tile, TRANSPORT_RAIL, 0));
		if (trackbits != TRACK_BIT_NONE) {
			/* If there is any track on the tile, set the bit in the second byte */
			SetBit(res, i + 8);

			/* With tunnels and bridges the tile has tracks, but they are not necessarily connected
			 * with the next tile because the ramp is not going in the right direction. */
			if (IsTileType(neighbour_tile, MP_TUNNELBRIDGE) && GetTunnelBridgeDirection(neighbour_tile) != *diagdir) {
				continue;
			}

			/* If any track reaches our exit direction, set the bit in the lower byte */
			if (trackbits & DiagdirReachesTracks(*diagdir)) SetBit(res, i);
		}
	}

	return res;
}
/**
 * Search signal block
 *
 * @param owner owner whose signals we are updating
 * @return SigFlags
 */
static SigFlags ExploreSegment(Owner owner)
{
	SigFlags flags = SF_NONE;

	TileIndex tile;
	DiagDirection enterdir;

	while (_tbdset.Get(&tile, &enterdir)) {
		TileIndex oldtile = tile; // tile we are leaving
		DiagDirection exitdir = enterdir == INVALID_DIAGDIR ? INVALID_DIAGDIR : ReverseDiagDir(enterdir); // expected new exit direction (for straight line)

		switch (GetTileType(tile)) {
			case MP_RAILWAY: {
				if (GetTileOwner(tile) != owner) continue; // do not propagate signals on others' tiles (remove for tracksharing)

				if (IsRailDepot(tile)) {
					if (enterdir == INVALID_DIAGDIR) { // from 'inside' - train just entered or left the depot
						if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
						exitdir = GetRailDepotDirection(tile);
						tile += TileOffsByDiagDir(exitdir);
						enterdir = ReverseDiagDir(exitdir);
						break;
					} else if (enterdir == GetRailDepotDirection(tile)) { // entered a depot
						if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
						continue;
					} else {
						continue;
					}
				}

				TrackBits tracks = GetTrackBits(tile); // trackbits of tile
				TrackBits tracks_masked = (TrackBits)(tracks & _enterdir_to_trackbits[enterdir]); // only incidating trackbits

				if (tracks == TRACK_BIT_HORZ || tracks == TRACK_BIT_VERT) { // there is exactly one incidating track, no need to check
					tracks = tracks_masked;
					/* If no train detected yet, and there is not no train -> there is a train -> set the flag */
					if (!(flags & SF_TRAIN) && EnsureNoTrainOnTrackBits(tile, tracks).Failed()) flags |= SF_TRAIN;
				} else {
					if (tracks_masked == TRACK_BIT_NONE) continue; // no incidating track
					if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
				}

				if (HasSignals(tile)) { // there is exactly one track - not zero, because there is exit from this tile
					Track track = TrackBitsToTrack(tracks_masked); // mask TRACK_BIT_X and Y too
					if (HasSignalOnTrack(tile, track)) { // now check whole track, not trackdir
						SignalType sig = GetSignalType(tile, track);
						Trackdir trackdir = (Trackdir)FindFirstBit((tracks * 0x101) & _enterdir_to_trackdirbits[enterdir]);
						Trackdir reversedir = ReverseTrackdir(trackdir);
						/* add (tile, reversetrackdir) to 'to-be-updated' set when there is
						 * ANY conventional signal in REVERSE direction
						 * (if it is a presignal EXIT and it changes, it will be added to 'to-be-done' set later) */
						if (HasSignalOnTrackdir(tile, reversedir)) {
							if (IsPbsSignal(sig)) {
								flags |= SF_PBS;
							} else if (!_tbuset.Add(tile, reversedir)) {
								return flags | SF_FULL;
							}
						}
						if (HasSignalOnTrackdir(tile, trackdir) && !IsOnewaySignal(tile, track)) flags |= SF_PBS;

						/* if it is a presignal EXIT in OUR direction and we haven't found 2 green exits yes, do special check */
						if (!(flags & SF_GREEN2) && IsPresignalExit(tile, track) && HasSignalOnTrackdir(tile, trackdir)) { // found presignal exit
							if (flags & SF_EXIT) flags |= SF_EXIT2; // found two (or more) exits
							flags |= SF_EXIT; // found at least one exit - allow for compiler optimizations
							if (GetSignalStateByTrackdir(tile, trackdir) == SIGNAL_STATE_GREEN) { // found green presignal exit
								if (flags & SF_GREEN) flags |= SF_GREEN2;
								flags |= SF_GREEN;
							}
						}

						continue;
					}
				}

				for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) { // test all possible exit directions
					if (dir != enterdir && (tracks & _enterdir_to_trackbits[dir])) { // any track incidating?
						TileIndex newtile = tile + TileOffsByDiagDir(dir);  // new tile to check
						DiagDirection newdir = ReverseDiagDir(dir); // direction we are entering from
						if (!MaybeAddToTodoSet(newtile, newdir, tile, dir)) return flags | SF_FULL;
					}
				}

				continue; // continue the while() loop
				}

			case MP_STATION:
				if (!HasStationRail(tile)) continue;
				if (GetTileOwner(tile) != owner) continue;
				if (DiagDirToAxis(enterdir) != GetRailStationAxis(tile)) continue; // different axis
				if (IsStationTileBlocked(tile)) continue; // 'eye-candy' station tile

				if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
				tile += TileOffsByDiagDir(exitdir);
				break;

			case MP_ROAD:
				if (!IsLevelCrossing(tile)) continue;
				if (GetTileOwner(tile) != owner) continue;
				if (DiagDirToAxis(enterdir) == GetCrossingRoadAxis(tile)) continue; // different axis

				if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
				tile += TileOffsByDiagDir(exitdir);
				break;

			case MP_TUNNELBRIDGE: {
				if (GetTileOwner(tile) != owner) continue;
				if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) continue;
				DiagDirection dir = GetTunnelBridgeDirection(tile);

				if (enterdir == INVALID_DIAGDIR) { // incoming from the wormhole
					if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
					enterdir = dir;
					exitdir = ReverseDiagDir(dir);
					tile += TileOffsByDiagDir(exitdir); // just skip to next tile
				} else { // NOT incoming from the wormhole!
					if (ReverseDiagDir(enterdir) != dir) continue;
					if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
					tile = GetOtherTunnelBridgeEnd(tile); // just skip to exit tile
					enterdir = INVALID_DIAGDIR;
					exitdir = INVALID_DIAGDIR;
				}
				}
				break;

			default:
				continue; // continue the while() loop
		}

		if (!MaybeAddToTodoSet(tile, enterdir, oldtile, exitdir)) return flags | SF_FULL;
	}

	return flags;
}
Example #9
0
/* virtual */ uint32 StationScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
{
	if (this->st == NULL) {
		/* Station does not exist, so we're in a purchase list or the land slope check callback. */
		switch (variable) {
			case 0x40:
			case 0x41:
			case 0x46:
			case 0x47:
			case 0x49: return 0x2110000;        // Platforms, tracks & position
			case 0x42: return 0;                // Rail type (XXX Get current type from GUI?)
			case 0x43: return GetCompanyInfo(_current_company); // Station owner
			case 0x44: return 2;                // PBS status
			case 0x67: // Land info of nearby tile
				if (this->axis != INVALID_AXIS && this->tile != INVALID_TILE) {
					TileIndex tile = this->tile;
					if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, this->axis); // only perform if it is required

					Slope tileh = GetTileSlope(tile);
					bool swap = (this->axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));

					return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
				}
				break;

			case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Build date, clamped to a 16 bit value
		}

		*available = false;
		return UINT_MAX;
	}

	switch (variable) {
		/* Calculated station variables */
		case 0x40:
			if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(this->tile, false, false, false); SetBit(_svc.valid, 0); }
			return _svc.v40;

		case 0x41:
			if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(this->tile, true,  false, false); SetBit(_svc.valid, 1); }
			return _svc.v41;

		case 0x42: return GetTerrainType(this->tile) | (GetReverseRailTypeTranslation(GetRailType(this->tile), this->statspec->grf_prop.grffile) << 8);
		case 0x43: return GetCompanyInfo(this->st->owner); // Station owner
		case 0x44: return HasStationReservation(this->tile) ? 7 : 4; // PBS status
		case 0x45:
			if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(this->tile); SetBit(_svc.valid, 2); }
			return _svc.v45;

		case 0x46:
			if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(this->tile, false, false, true); SetBit(_svc.valid, 3); }
			return _svc.v46;

		case 0x47:
			if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(this->tile, true,  false, true); SetBit(_svc.valid, 4); }
			return _svc.v47;

		case 0x49:
			if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(this->tile, false, true, false); SetBit(_svc.valid, 5); }
			return _svc.v49;

		case 0x4A: // Animation frame of tile
			return GetAnimationFrame(this->tile);

		/* Variables which use the parameter */
		/* Variables 0x60 to 0x65 and 0x69 are handled separately below */
		case 0x66: { // Animation frame of nearby tile
			TileIndex tile = this->tile;
			if (parameter != 0) tile = GetNearbyTile(parameter, tile);
			return this->st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
		}

		case 0x67: { // Land info of nearby tile
			Axis axis = GetRailStationAxis(this->tile);
			TileIndex tile = this->tile;
			if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required

			Slope tileh = GetTileSlope(tile);
			bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));

			return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
		}

		case 0x68: { // Station info of nearby tiles
			TileIndex nearby_tile = GetNearbyTile(parameter, this->tile);

			if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;

			uint32 grfid = this->st->speclist[GetCustomStationSpecIndex(this->tile)].grfid;
			bool perpendicular = GetRailStationAxis(this->tile) != GetRailStationAxis(nearby_tile);
			bool same_station = this->st->TileBelongsToRailStation(nearby_tile);
			uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;

			if (IsCustomStationSpecIndex(nearby_tile)) {
				const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
				res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
			}
			return res;
		}

		/* General station variables */
		case 0x82: return 50;
		case 0x84: return this->st->string_id;
		case 0x86: return 0;
		case 0xF0: return this->st->facilities;
		case 0xFA: return Clamp(this->st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
	}

	return this->st->GetNewGRFVariable(this->ro, variable, parameter, available);
}
Example #10
0
static uint32 StationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
{
	const BaseStation *st = object->u.station.st;
	TileIndex tile = object->u.station.tile;

	if (object->scope == VSG_SCOPE_PARENT) {
		/* Pass the request on to the town of the station */
		const Town *t;

		if (st != NULL) {
			t = st->town;
		} else if (tile != INVALID_TILE) {
			t = ClosestTownFromTile(tile, UINT_MAX);
		} else {
			*available = false;
			return UINT_MAX;
		}

		return TownGetVariable(variable, parameter, available, t);
	}

	if (st == NULL) {
		/* Station does not exist, so we're in a purchase list */
		switch (variable) {
			case 0x40:
			case 0x41:
			case 0x46:
			case 0x47:
			case 0x49: return 0x2110000;        // Platforms, tracks & position
			case 0x42: return 0;                // Rail type (XXX Get current type from GUI?)
			case 0x43: return _current_company; // Station owner
			case 0x44: return 2;                // PBS status
			case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Build date, clamped to a 16 bit value
		}

		*available = false;
		return UINT_MAX;
	}

	switch (variable) {
		/* Calculated station variables */
		case 0x40:
			if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(tile, false, false, false); SetBit(_svc.valid, 0); }
			return _svc.v40;

		case 0x41:
			if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(tile, true,  false, false); SetBit(_svc.valid, 1); }
			return _svc.v41;

		case 0x42: return GetTerrainType(tile) | (GetReverseRailTypeTranslation(GetRailType(tile), object->u.station.statspec->grf_prop.grffile) << 8);
		case 0x43: return st->owner; // Station owner
		case 0x44: return HasStationReservation(tile) ? 7 : 4; // PBS status
		case 0x45:
			if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(tile); SetBit(_svc.valid, 2); }
			return _svc.v45;

		case 0x46:
			if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(tile, false, false, true); SetBit(_svc.valid, 3); }
			return _svc.v46;

		case 0x47:
			if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(tile, true,  false, true); SetBit(_svc.valid, 4); }
			return _svc.v47;

		case 0x49:
			if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(tile, false, true, false); SetBit(_svc.valid, 5); }
			return _svc.v49;

		case 0x4A: // Animation frame of tile
			return GetAnimationFrame(tile);

		/* Variables which use the parameter */
		/* Variables 0x60 to 0x65 are handled separately below */
		case 0x66: // Animation frame of nearby tile
			if (parameter != 0) tile = GetNearbyTile(parameter, tile);
			return st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;

		case 0x67: { // Land info of nearby tile
			Axis axis = GetRailStationAxis(tile);

			if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required

			Slope tileh = GetTileSlope(tile, NULL);
			bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));

			return GetNearbyTileInformation(tile) ^ (swap ? SLOPE_EW : 0);
		}

		case 0x68: { // Station info of nearby tiles
			TileIndex nearby_tile = GetNearbyTile(parameter, tile);

			if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;

			uint32 grfid = st->speclist[GetCustomStationSpecIndex(tile)].grfid;
			bool perpendicular = GetRailStationAxis(tile) != GetRailStationAxis(nearby_tile);
			bool same_station = st->TileBelongsToRailStation(nearby_tile);
			uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;

			if (IsCustomStationSpecIndex(nearby_tile)) {
				const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
				res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
			}
			return res;
		}

		/* General station variables */
		case 0x82: return 50;
		case 0x84: return st->string_id;
		case 0x86: return 0;
		case 0xF0: return st->facilities;
		case 0xFA: return Clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
	}

	return st->GetNewGRFVariable(object, variable, parameter, available);
}