1

/* $Id$ */

     2

     3

/** @file road_map.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "bridge_map.h"

     8

#include "tile_cmd.h"

     9

#include "road_map.h"

    10

#include "station.h"

    11

#include "tunnel_map.h"

    12

#include "station_map.h"

    13

#include "depot.h"

    14

#include "tunnelbridge_map.h"

    15

    16

    17

RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt)

    18

{

    19

	if (!HasTileRoadType(tile, rt)) return ROAD_NONE;

    20

    21

	switch (GetTileType(tile)) {

    22

		case MP_ROAD:

    23

			switch (GetRoadTileType(tile)) {

    24

				default:

    25

				case ROAD_TILE_NORMAL:   return GetRoadBits(tile, rt);

    26

				case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile);

    27

				case ROAD_TILE_DEPOT:    return DiagDirToRoadBits(GetRoadDepotDirection(tile));

    28

			}

    29

    30

		case MP_STATION:

    31

			if (!IsRoadStopTile(tile)) return ROAD_NONE;

    32

			if (IsDriveThroughStopTile(tile)) return (GetRoadStopDir(tile) == DIAGDIR_NE) ? ROAD_X : ROAD_Y;

    33

			return DiagDirToRoadBits(GetRoadStopDir(tile));

    34

    35

		case MP_TUNNELBRIDGE:

    36

			if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return ROAD_NONE;

    37

			return DiagDirToRoadBits(ReverseDiagDir(GetTunnelBridgeDirection(tile)));

    38

    39

		default: return ROAD_NONE;

    40

	}

    41

}

    42

    43

    44

TrackBits GetAnyRoadTrackBits(TileIndex tile, RoadType rt)

    45

{

    46

	/* Don't allow local authorities to build roads through road depots or road stops. */

    47

	if (IsRoadDepotTile(tile) || (IsTileType(tile, MP_STATION) && !IsDriveThroughStopTile(tile)) || !HasTileRoadType(tile, rt)) {

    48

		return TRACK_BIT_NONE;

    49

	}

    50

    51

	return TrackStatusToTrackBits(GetTileTrackStatus(tile, TRANSPORT_ROAD, RoadTypeToRoadTypes(rt)));

    52

}