671 lines
19 KiB
C
671 lines
19 KiB
C
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file station_map.h Maps accessors for stations. */
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#ifndef STATION_MAP_H
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#define STATION_MAP_H
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#include "rail_map.h"
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#include "road_map.h"
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#include "water_map.h"
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#include "station_func.h"
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#include "rail.h"
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#include "road.h"
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typedef byte StationGfx; ///< Index of station graphics. @see _station_display_datas
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/**
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* Get StationID from a tile
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* @param t Tile to query station ID from
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* @pre IsTileType(t, MP_STATION)
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* @return Station ID of the station at \a t
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*/
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static inline StationID GetStationIndex(TileIndex t)
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{
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assert(IsTileType(t, MP_STATION));
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return (StationID)_m[t].m2;
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}
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static const int GFX_DOCK_BASE_WATER_PART = 4; ///< The offset for the water parts.
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static const int GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET = 4; ///< The offset for the drive through parts.
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/**
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* Get the station type of this tile
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* @param t the tile to query
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* @pre IsTileType(t, MP_STATION)
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* @return the station type
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*/
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static inline StationType GetStationType(TileIndex t)
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{
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assert(IsTileType(t, MP_STATION));
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return (StationType)GB(_me[t].m6, 3, 3);
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}
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/**
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* Get the road stop type of this tile
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* @param t the tile to query
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* @pre GetStationType(t) == STATION_TRUCK || GetStationType(t) == STATION_BUS
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* @return the road stop type
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*/
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static inline RoadStopType GetRoadStopType(TileIndex t)
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{
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assert(GetStationType(t) == STATION_TRUCK || GetStationType(t) == STATION_BUS);
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return GetStationType(t) == STATION_TRUCK ? ROADSTOP_TRUCK : ROADSTOP_BUS;
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}
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/**
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* Get the station graphics of this tile
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* @param t the tile to query
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* @pre IsTileType(t, MP_STATION)
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* @return the station graphics
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*/
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static inline StationGfx GetStationGfx(TileIndex t)
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{
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assert(IsTileType(t, MP_STATION));
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return _m[t].m5;
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}
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/**
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* Set the station graphics of this tile
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* @param t the tile to update
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* @param gfx the new graphics
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* @pre IsTileType(t, MP_STATION)
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*/
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static inline void SetStationGfx(TileIndex t, StationGfx gfx)
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{
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assert(IsTileType(t, MP_STATION));
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_m[t].m5 = gfx;
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}
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/**
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* Is this station tile a rail station?
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* @param t the tile to get the information from
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* @pre IsTileType(t, MP_STATION)
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* @return true if and only if the tile is a rail station
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*/
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static inline bool IsRailStation(TileIndex t)
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{
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return GetStationType(t) == STATION_RAIL;
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}
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/**
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* Is this tile a station tile and a rail station?
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* @param t the tile to get the information from
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* @return true if and only if the tile is a rail station
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*/
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static inline bool IsRailStationTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsRailStation(t);
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}
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/**
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* Is this station tile a rail waypoint?
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* @param t the tile to get the information from
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* @pre IsTileType(t, MP_STATION)
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* @return true if and only if the tile is a rail waypoint
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*/
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static inline bool IsRailWaypoint(TileIndex t)
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{
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return GetStationType(t) == STATION_WAYPOINT;
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}
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/**
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* Is this tile a station tile and a rail waypoint?
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* @param t the tile to get the information from
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* @return true if and only if the tile is a rail waypoint
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*/
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static inline bool IsRailWaypointTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsRailWaypoint(t);
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}
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/**
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* Has this station tile a rail? In other words, is this station
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* tile a rail station or rail waypoint?
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* @param t the tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return true if and only if the tile has rail
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*/
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static inline bool HasStationRail(TileIndex t)
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{
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return IsRailStation(t) || IsRailWaypoint(t);
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}
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/**
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* Has this station tile a rail? In other words, is this station
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* tile a rail station or rail waypoint?
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* @param t the tile to check
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* @return true if and only if the tile is a station tile and has rail
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*/
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static inline bool HasStationTileRail(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && HasStationRail(t);
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}
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/**
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* Is this station tile an airport?
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* @param t the tile to get the information from
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* @pre IsTileType(t, MP_STATION)
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* @return true if and only if the tile is an airport
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*/
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static inline bool IsAirport(TileIndex t)
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{
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return GetStationType(t) == STATION_AIRPORT;
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}
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/**
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* Is this tile a station tile and an airport tile?
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* @param t the tile to get the information from
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* @return true if and only if the tile is an airport
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*/
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static inline bool IsAirportTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsAirport(t);
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}
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bool IsHangar(TileIndex t);
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/**
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* Is the station at \a t a truck stop?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if station is a truck stop, \c false otherwise
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*/
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static inline bool IsTruckStop(TileIndex t)
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{
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return GetStationType(t) == STATION_TRUCK;
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}
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/**
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* Is the station at \a t a bus stop?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if station is a bus stop, \c false otherwise
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*/
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static inline bool IsBusStop(TileIndex t)
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{
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return GetStationType(t) == STATION_BUS;
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}
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/**
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* Is the station at \a t a road station?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if station at the tile is a bus top or a truck stop, \c false otherwise
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*/
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static inline bool IsRoadStop(TileIndex t)
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{
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assert(IsTileType(t, MP_STATION));
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return IsTruckStop(t) || IsBusStop(t);
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}
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/**
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* Is tile \a t a road stop station?
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* @param t Tile to check
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* @return \c true if the tile is a station tile and a road stop
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*/
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static inline bool IsRoadStopTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsRoadStop(t);
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}
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/**
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* Is tile \a t a standard (non-drive through) road stop station?
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* @param t Tile to check
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* @return \c true if the tile is a station tile and a standard road stop
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*/
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static inline bool IsStandardRoadStopTile(TileIndex t)
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{
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return IsRoadStopTile(t) && GetStationGfx(t) < GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET;
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}
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/**
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* Is tile \a t a drive through road stop station?
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* @param t Tile to check
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* @return \c true if the tile is a station tile and a drive through road stop
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*/
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static inline bool IsDriveThroughStopTile(TileIndex t)
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{
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return IsRoadStopTile(t) && GetStationGfx(t) >= GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET;
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}
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/**
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* Get the station graphics of this airport tile
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* @param t the tile to query
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* @pre IsAirport(t)
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* @return the station graphics
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*/
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static inline StationGfx GetAirportGfx(TileIndex t)
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{
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assert(IsAirport(t));
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extern StationGfx GetTranslatedAirportTileID(StationGfx gfx);
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return GetTranslatedAirportTileID(GetStationGfx(t));
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}
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/**
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* Gets the direction the road stop entrance points towards.
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* @param t the tile of the road stop
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* @pre IsRoadStopTile(t)
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* @return the direction of the entrance
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*/
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static inline DiagDirection GetRoadStopDir(TileIndex t)
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{
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StationGfx gfx = GetStationGfx(t);
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assert(IsRoadStopTile(t));
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if (gfx < GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET) {
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return (DiagDirection)(gfx);
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} else {
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return (DiagDirection)(gfx - GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET);
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}
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}
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/**
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* Is tile \a t part of an oilrig?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if the tile is an oilrig tile
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*/
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static inline bool IsOilRig(TileIndex t)
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{
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return GetStationType(t) == STATION_OILRIG;
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}
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/**
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* Is tile \a t a dock tile?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if the tile is a dock
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*/
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static inline bool IsDock(TileIndex t)
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{
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return GetStationType(t) == STATION_DOCK;
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}
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/**
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* Is tile \a t a dock tile?
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* @param t Tile to check
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* @return \c true if the tile is a dock
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*/
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static inline bool IsDockTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && GetStationType(t) == STATION_DOCK;
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}
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/**
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* Is tile \a t a buoy tile?
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* @param t Tile to check
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* @pre IsTileType(t, MP_STATION)
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* @return \c true if the tile is a buoy
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*/
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static inline bool IsBuoy(TileIndex t)
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{
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return GetStationType(t) == STATION_BUOY;
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}
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/**
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* Is tile \a t a buoy tile?
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* @param t Tile to check
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* @return \c true if the tile is a buoy
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*/
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static inline bool IsBuoyTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsBuoy(t);
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}
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/**
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* Is tile \a t an hangar tile?
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* @param t Tile to check
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* @return \c true if the tile is an hangar
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*/
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static inline bool IsHangarTile(TileIndex t)
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{
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return IsTileType(t, MP_STATION) && IsHangar(t);
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}
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/**
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* Get the rail direction of a rail station.
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* @param t Tile to query
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* @pre HasStationRail(t)
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* @return The direction of the rails on tile \a t.
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*/
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static inline Axis GetRailStationAxis(TileIndex t)
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{
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assert(HasStationRail(t));
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return HasBit(GetStationGfx(t), 0) ? AXIS_Y : AXIS_X;
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}
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/**
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* Get the rail track of a rail station tile.
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* @param t Tile to query
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* @pre HasStationRail(t)
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* @return The rail track of the rails on tile \a t.
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*/
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static inline Track GetRailStationTrack(TileIndex t)
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{
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return AxisToTrack(GetRailStationAxis(t));
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}
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/**
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* Get the trackbits of a rail station tile.
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* @param t Tile to query
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* @pre HasStationRail(t)
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* @return The trackbits of the rails on tile \a t.
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*/
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static inline TrackBits GetRailStationTrackBits(TileIndex t)
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{
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return AxisToTrackBits(GetRailStationAxis(t));
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}
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/**
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* Check if a tile is a valid continuation to a railstation tile.
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* The tile \a test_tile is a valid continuation to \a station_tile, if all of the following are true:
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* \li \a test_tile is a rail station tile
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* \li the railtype of \a test_tile is compatible with the railtype of \a station_tile
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* \li the tracks on \a test_tile and \a station_tile are in the same direction
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* \li both tiles belong to the same station
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* \li \a test_tile is not blocked (@see IsStationTileBlocked)
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* @param test_tile Tile to test
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* @param station_tile Station tile to compare with
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* @pre IsRailStationTile(station_tile)
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* @return true if the two tiles are compatible
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*/
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static inline bool IsCompatibleTrainStationTile(TileIndex test_tile, TileIndex station_tile)
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{
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assert(IsRailStationTile(station_tile));
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return IsRailStationTile(test_tile) && IsCompatibleRail(GetRailType(test_tile), GetRailType(station_tile)) &&
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GetRailStationAxis(test_tile) == GetRailStationAxis(station_tile) &&
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GetStationIndex(test_tile) == GetStationIndex(station_tile) &&
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!IsStationTileBlocked(test_tile);
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}
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/**
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* Get the reservation state of the rail station
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* @pre HasStationRail(t)
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* @param t the station tile
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* @return reservation state
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*/
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static inline bool HasStationReservation(TileIndex t)
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{
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assert(HasStationRail(t));
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return HasBit(_me[t].m6, 2);
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}
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/**
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* Set the reservation state of the rail station
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* @pre HasStationRail(t)
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* @param t the station tile
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* @param b the reservation state
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*/
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static inline void SetRailStationReservation(TileIndex t, bool b)
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{
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assert(HasStationRail(t));
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SB(_me[t].m6, 2, 1, b ? 1 : 0);
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}
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/**
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* Get the reserved track bits for a waypoint
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* @pre HasStationRail(t)
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* @param t the tile
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* @return reserved track bits
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*/
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static inline TrackBits GetStationReservationTrackBits(TileIndex t)
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{
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return HasStationReservation(t) ? GetRailStationTrackBits(t) : TRACK_BIT_NONE;
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}
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/**
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* Get the direction of a dock.
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* @param t Tile to query
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* @pre IsDock(t)
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* @pre \a t is the land part of the dock
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* @return The direction of the dock on tile \a t.
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*/
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static inline DiagDirection GetDockDirection(TileIndex t)
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{
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StationGfx gfx = GetStationGfx(t);
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assert(IsDock(t) && gfx < GFX_DOCK_BASE_WATER_PART);
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return (DiagDirection)(gfx);
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}
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/**
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* Get the tileoffset from this tile a ship should target to get to this dock.
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* @param t Tile to query
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* @pre IsTileType(t, MP_STATION)
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* @pre IsBuoy(t) || IsOilRig(t) || IsDock(t)
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* @return The offset from this tile that should be used as destination for ships.
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*/
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static inline TileIndexDiffC GetDockOffset(TileIndex t)
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{
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static const TileIndexDiffC buoy_offset = {0, 0};
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static const TileIndexDiffC oilrig_offset = {2, 0};
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static const TileIndexDiffC dock_offset[DIAGDIR_END] = {
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{-2, 0},
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{ 0, 2},
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{ 2, 0},
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{ 0, -2},
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};
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assert(IsTileType(t, MP_STATION));
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if (IsBuoy(t)) return buoy_offset;
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if (IsOilRig(t)) return oilrig_offset;
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assert(IsDock(t));
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return dock_offset[GetDockDirection(t)];
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}
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/**
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* Is there a custom rail station spec on this tile?
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* @param t Tile to query
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* @pre HasStationTileRail(t)
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* @return True if this station is part of a newgrf station.
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*/
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static inline bool IsCustomStationSpecIndex(TileIndex t)
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{
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assert(HasStationTileRail(t));
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return _m[t].m4 != 0;
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}
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/**
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* Set the custom station spec for this tile.
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* @param t Tile to set the stationspec of.
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* @param specindex The new spec.
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* @pre HasStationTileRail(t)
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*/
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static inline void SetCustomStationSpecIndex(TileIndex t, byte specindex)
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{
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assert(HasStationTileRail(t));
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_m[t].m4 = specindex;
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}
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/**
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* Get the custom station spec for this tile.
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* @param t Tile to query
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* @pre HasStationTileRail(t)
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* @return The custom station spec of this tile.
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*/
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static inline uint GetCustomStationSpecIndex(TileIndex t)
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{
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assert(HasStationTileRail(t));
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return _m[t].m4;
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}
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/**
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* Set the random bits for a station tile.
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* @param t Tile to set random bits for.
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* @param random_bits The random bits.
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* @pre IsTileType(t, MP_STATION)
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*/
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static inline void SetStationTileRandomBits(TileIndex t, byte random_bits)
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{
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assert(IsTileType(t, MP_STATION));
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SB(_m[t].m3, 4, 4, random_bits);
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}
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/**
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* Get the random bits of a station tile.
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* @param t Tile to query
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* @pre IsTileType(t, MP_STATION)
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* @return The random bits for this station tile.
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*/
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static inline byte GetStationTileRandomBits(TileIndex t)
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{
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assert(IsTileType(t, MP_STATION));
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return GB(_m[t].m3, 4, 4);
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}
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/**
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* Make the given tile a station tile.
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* @param t the tile to make a station tile
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* @param o the owner of the station
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* @param sid the station to which this tile belongs
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* @param st the type this station tile
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* @param section the StationGfx to be used for this tile
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* @param wc The water class of the station
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*/
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static inline void MakeStation(TileIndex t, Owner o, StationID sid, StationType st, byte section, WaterClass wc = WATER_CLASS_INVALID)
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{
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SetTileType(t, MP_STATION);
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SetTileOwner(t, o);
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SetWaterClass(t, wc);
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SetDockingTile(t, false);
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_m[t].m2 = sid;
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_m[t].m3 = 0;
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_m[t].m4 = 0;
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_m[t].m5 = section;
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SB(_me[t].m6, 2, 1, 0);
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SB(_me[t].m6, 3, 3, st);
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_me[t].m7 = 0;
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_me[t].m8 = 0;
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}
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/**
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* Make the given tile a rail station tile.
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* @param t the tile to make a rail station tile
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* @param o the owner of the station
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* @param sid the station to which this tile belongs
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* @param a the axis of this tile
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* @param section the StationGfx to be used for this tile
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* @param rt the railtype of this tile
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*/
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static inline void MakeRailStation(TileIndex t, Owner o, StationID sid, Axis a, byte section, RailType rt)
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{
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MakeStation(t, o, sid, STATION_RAIL, section + a);
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SetRailType(t, rt);
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SetRailStationReservation(t, false);
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}
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|
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/**
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* Make the given tile a rail waypoint tile.
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* @param t the tile to make a rail waypoint
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* @param o the owner of the waypoint
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* @param sid the waypoint to which this tile belongs
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* @param a the axis of this tile
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* @param section the StationGfx to be used for this tile
|
|
* @param rt the railtype of this tile
|
|
*/
|
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static inline void MakeRailWaypoint(TileIndex t, Owner o, StationID sid, Axis a, byte section, RailType rt)
|
|
{
|
|
MakeStation(t, o, sid, STATION_WAYPOINT, section + a);
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SetRailType(t, rt);
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|
SetRailStationReservation(t, false);
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|
}
|
|
|
|
/**
|
|
* Make the given tile a roadstop tile.
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|
* @param t the tile to make a roadstop
|
|
* @param o the owner of the roadstop
|
|
* @param sid the station to which this tile belongs
|
|
* @param rst the type of roadstop to make this tile
|
|
* @param road_rt the road roadtype on this tile
|
|
* @param tram_rt the tram roadtype on this tile
|
|
* @param d the direction of the roadstop
|
|
*/
|
|
static inline void MakeRoadStop(TileIndex t, Owner o, StationID sid, RoadStopType rst, RoadType road_rt, RoadType tram_rt, DiagDirection d)
|
|
{
|
|
MakeStation(t, o, sid, (rst == ROADSTOP_BUS ? STATION_BUS : STATION_TRUCK), d);
|
|
SetRoadTypes(t, road_rt, tram_rt);
|
|
SetRoadOwner(t, RTT_ROAD, o);
|
|
SetRoadOwner(t, RTT_TRAM, o);
|
|
}
|
|
|
|
/**
|
|
* Make the given tile a drivethrough roadstop tile.
|
|
* @param t the tile to make a roadstop
|
|
* @param station the owner of the roadstop
|
|
* @param road the owner of the road
|
|
* @param tram the owner of the tram
|
|
* @param sid the station to which this tile belongs
|
|
* @param rst the type of roadstop to make this tile
|
|
* @param road_rt the road roadtype on this tile
|
|
* @param tram_rt the tram roadtype on this tile
|
|
* @param a the direction of the roadstop
|
|
*/
|
|
static inline void MakeDriveThroughRoadStop(TileIndex t, Owner station, Owner road, Owner tram, StationID sid, RoadStopType rst, RoadType road_rt, RoadType tram_rt, Axis a)
|
|
{
|
|
MakeStation(t, station, sid, (rst == ROADSTOP_BUS ? STATION_BUS : STATION_TRUCK), GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET + a);
|
|
SetRoadTypes(t, road_rt, tram_rt);
|
|
SetRoadOwner(t, RTT_ROAD, road);
|
|
SetRoadOwner(t, RTT_TRAM, tram);
|
|
}
|
|
|
|
/**
|
|
* Make the given tile an airport tile.
|
|
* @param t the tile to make a airport
|
|
* @param o the owner of the airport
|
|
* @param sid the station to which this tile belongs
|
|
* @param section the StationGfx to be used for this tile
|
|
* @param wc the type of water on this tile
|
|
*/
|
|
static inline void MakeAirport(TileIndex t, Owner o, StationID sid, byte section, WaterClass wc)
|
|
{
|
|
MakeStation(t, o, sid, STATION_AIRPORT, section, wc);
|
|
}
|
|
|
|
/**
|
|
* Make the given tile a buoy tile.
|
|
* @param t the tile to make a buoy
|
|
* @param sid the station to which this tile belongs
|
|
* @param wc the type of water on this tile
|
|
*/
|
|
static inline void MakeBuoy(TileIndex t, StationID sid, WaterClass wc)
|
|
{
|
|
/* Make the owner of the buoy tile the same as the current owner of the
|
|
* water tile. In this way, we can reset the owner of the water to its
|
|
* original state when the buoy gets removed. */
|
|
MakeStation(t, GetTileOwner(t), sid, STATION_BUOY, 0, wc);
|
|
}
|
|
|
|
/**
|
|
* Make the given tile a dock tile.
|
|
* @param t the tile to make a dock
|
|
* @param o the owner of the dock
|
|
* @param sid the station to which this tile belongs
|
|
* @param d the direction of the dock
|
|
* @param wc the type of water on this tile
|
|
*/
|
|
static inline void MakeDock(TileIndex t, Owner o, StationID sid, DiagDirection d, WaterClass wc)
|
|
{
|
|
MakeStation(t, o, sid, STATION_DOCK, d);
|
|
MakeStation(t + TileOffsByDiagDir(d), o, sid, STATION_DOCK, GFX_DOCK_BASE_WATER_PART + DiagDirToAxis(d), wc);
|
|
}
|
|
|
|
/**
|
|
* Make the given tile an oilrig tile.
|
|
* @param t the tile to make an oilrig
|
|
* @param sid the station to which this tile belongs
|
|
* @param wc the type of water on this tile
|
|
*/
|
|
static inline void MakeOilrig(TileIndex t, StationID sid, WaterClass wc)
|
|
{
|
|
MakeStation(t, OWNER_NONE, sid, STATION_OILRIG, 0, wc);
|
|
}
|
|
|
|
#endif /* STATION_MAP_H */
|