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/* $Id$ */
/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file newgrf_station.h Header file for NewGRF stations */
#ifndef NEWGRF_STATION_H
#define NEWGRF_STATION_H
#include "newgrf_animation_type.h"
#include "newgrf_callbacks.h"
#include "newgrf_class.h"
#include "newgrf_commons.h"
#include "cargo_type.h"
#include "station_type.h"
#include "rail_type.h"
enum StationClassID {
STAT_CLASS_BEGIN = 0, ///< the lowest valid value
STAT_CLASS_DFLT = 0, ///< Default station class.
STAT_CLASS_WAYP, ///< Waypoint class.
STAT_CLASS_MAX = 256, ///< Maximum number of classes.
};
typedef SimpleTinyEnumT<StationClassID, byte> StationClassIDByte;
template <> struct EnumPropsT<StationClassID> : MakeEnumPropsT<StationClassID, byte, STAT_CLASS_BEGIN, STAT_CLASS_MAX, STAT_CLASS_MAX, 8> {};
/** Allow incrementing of StationClassID variables */
DECLARE_POSTFIX_INCREMENT(StationClassID)
enum StationSpecFlags {
SSF_SEPARATE_GROUND, ///< Use different sprite set for ground sprites.
SSF_DIV_BY_STATION_SIZE, ///< Divide cargo amount by station size.
SSF_CB141_RANDOM_BITS, ///< Callback 141 needs random bits.
SSF_CUSTOM_FOUNDATIONS, ///< Draw custom foundations.
SSF_EXTENDED_FOUNDATIONS, ///< Extended foundation block instead of simple.
};
/* Station layout for given dimensions - it is a two-dimensional array
* where index is computed as (x * platforms) + platform. */
typedef byte *StationLayout;
/** Station specification. */
struct StationSpec {
/**
* Properties related the the grf file.
* NUM_CARGO real cargo plus three pseudo cargo sprite groups.
* Used for obtaining the sprite offset of custom sprites, and for
* evaluating callbacks.
*/
GRFFilePropsBase<NUM_CARGO + 3> grf_prop;
StationClassID cls_id; ///< 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;
NewGRFSpriteLayout *renderdata; ///< Array of tile layouts.
/**
* 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 callback_mask; ///< Bitmask of station callbacks that have to be called
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
AnimationInfo animation;
byte lengths;
byte *platforms;
StationLayout **layouts;
bool copied_layouts;
};
/** Struct containing information relating to station classes. */
typedef NewGRFClass<StationSpec, StationClassID, STAT_CLASS_MAX> StationClass;
const StationSpec *GetStationSpec(TileIndex t);
/* 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);
SpriteID GetCustomStationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint32 var10 = 0);
SpriteID GetCustomStationFoundationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint layout, uint edge_info);
uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile);
CommandCost PerformStationTileSlopeCheck(TileIndex north_tile, TileIndex cur_tile, const StationSpec *statspec, Axis axis, byte plat_len, byte numtracks);
/* Allocate a StationSpec to a Station. This is called once per build operation. */
int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec);
/* Deallocate a StationSpec from a Station. Called when removing a single station tile. */
void DeallocateSpecFromStation(BaseStation *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);
void AnimateStationTile(TileIndex tile);
void TriggerStationAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type = CT_INVALID);
void StationUpdateAnimTriggers(BaseStation *st);
#endif /* NEWGRF_STATION_H */
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