/* $Id$ */ /** @file newgrf_station.h Header file for NewGRF stations */ #ifndef NEWGRF_STATION_H #define NEWGRF_STATION_H #include "engine.h" #include "newgrf_cargo.h" #include "helpers.hpp" typedef enum { STAT_CLASS_BEGIN = 0, ///< the lowest valid value STAT_CLASS_DFLT = 0, ///< Default station class. STAT_CLASS_WAYP, ///< Waypoint class. STAT_CLASS_MAX = 32, ///< Maximum number of classes. } StationClassID; /** Define basic enum properties */ template <> struct EnumPropsT<StationClassID> : MakeEnumPropsT<StationClassID, byte, STAT_CLASS_BEGIN, STAT_CLASS_MAX, STAT_CLASS_MAX> {}; typedef TinyEnumT<StationClassID> StationClassIDByte; /** Allow incrementing of StationClassID variables */ DECLARE_POSTFIX_INCREMENT(StationClassID); /* Station layout for given dimensions - it is a two-dimensional array * where index is computed as (x * platforms) + platform. */ typedef byte *StationLayout; typedef struct StationSpec { uint32 grfid; ///< ID of GRF file station belongs to. int localidx; ///< Index within GRF file of station. bool allocated; ///< Flag whether this station has been added to a station class list StationClassID sclass; ///< The class to which this spec belongs. StringID name; ///< Name of this station. /** * Bitmask of number of platforms available for the station. * 0..6 correpsond to 1..7, while bit 7 corresponds to >7 platforms. */ byte disallowed_platforms; /** * Bitmask of platform lengths available for the station. * 0..6 correpsond to 1..7, while bit 7 corresponds to >7 tiles long. */ byte disallowed_lengths; /** Number of tile layouts. * A minimum of 8 is required is required for stations. * 0-1 = plain platform * 2-3 = platform with building * 4-5 = platform with roof, left side * 6-7 = platform with roof, right side */ uint tiles; DrawTileSprites *renderdata; ///< Array of tile layouts. bool copied_renderdata; /** Cargo threshold for choosing between little and lots of cargo * @note little/lots are equivalent to the moving/loading states for vehicles */ uint16 cargo_threshold; uint32 cargo_triggers; ///< Bitmask of cargo types which cause trigger re-randomizing byte callbackmask; ///< Bitmask of callbacks to use, @see newgrf_callbacks.h byte flags; ///< Bitmask of flags, bit 0: use different sprite set; bit 1: divide cargo about by station size byte pylons; ///< Bitmask of base tiles (0 - 7) which should contain elrail pylons byte wires; ///< Bitmask of base tiles (0 - 7) which should contain elrail wires byte blocked; ///< Bitmask of base tiles (0 - 7) which are blocked to trains byte lengths; byte *platforms; StationLayout **layouts; bool copied_layouts; /** * NUM_GLOBAL_CID sprite groups. * Used for obtaining the sprite offset of custom sprites, and for * evaluating callbacks. */ const struct SpriteGroup *spritegroup[NUM_GLOBAL_CID]; } StationSpec; /** * Struct containing information relating to station classes. */ typedef struct StationClass { uint32 id; ///< ID of this class, e.g. 'DFLT', 'WAYP', etc. StringID name; ///< Name of this class. uint stations; ///< Number of stations in this class. StationSpec **spec; ///< Array of station specifications. } StationClass; void ResetStationClasses(void); StationClassID AllocateStationClass(uint32 cls); void SetStationClassName(StationClassID sclass, StringID name); StringID GetStationClassName(StationClassID sclass); StringID *BuildStationClassDropdown(void); uint GetNumStationClasses(void); uint GetNumCustomStations(StationClassID sclass); void SetCustomStationSpec(StationSpec *statspec); const StationSpec *GetCustomStationSpec(StationClassID sclass, uint station); const StationSpec *GetCustomStationSpecByGrf(uint32 grfid, byte localidx); /* Evaluate a tile's position within a station, and return the result a bitstuffed format. */ uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred); /* Get sprite offset for a given custom station and station structure (may be * NULL - that means we are in a build dialog). The station structure is used * for variational sprite groups. */ SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile); SpriteID GetCustomStationGroundRelocation(const StationSpec *statspec, const Station *st, TileIndex tile); uint16 GetStationCallback(uint16 callback, uint32 param1, uint32 param2, const StationSpec *statspec, const Station *st, TileIndex tile); /* Check if a rail station tile is traversable. */ bool IsStationTileBlocked(TileIndex tile); /* Check if a rail station tile is electrifiable. */ bool IsStationTileElectrifiable(TileIndex tile); /* Allocate a StationSpec to a Station. This is called once per build operation. */ int AllocateSpecToStation(const StationSpec *statspec, Station *st, bool exec); /* Deallocate a StationSpec from a Station. Called when removing a single station tile. */ void DeallocateSpecFromStation(Station* st, byte specindex); /* Draw representation of a station tile for GUI purposes. */ bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station); #endif /* NEWGRF_STATION_H */