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