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/* $Id$ */
/** @file tile_cmd.h Generic 'commands' that can be performed on all tiles. */
#ifndef TILE_CMD_H
#define TILE_CMD_H
#include "slope_type.h"
#include "tile_type.h"
#include "command_type.h"
#include "vehicle_type.h"
#include "cargo_type.h"
#include "strings_type.h"
#include "date_type.h"
#include "company_type.h"
#include "direction_type.h"
#include "track_type.h"
#include "transport_type.h"
/** The returned bits of VehicleEnterTile. */
enum VehicleEnterTileStatus {
VETS_ENTERED_STATION = 1, ///< The vehicle entered a station
VETS_ENTERED_WORMHOLE = 2, ///< The vehicle either entered a bridge, tunnel or depot tile (this includes the last tile of the bridge/tunnel)
VETS_CANNOT_ENTER = 3, ///< The vehicle cannot enter the tile
/**
* Shift the VehicleEnterTileStatus this many bits
* to the right to get the station ID when
* VETS_ENTERED_STATION is set
*/
VETS_STATION_ID_OFFSET = 8,
VETS_STATION_MASK = 0xFFFF << VETS_STATION_ID_OFFSET,
/** Bit sets of the above specified bits */
VETSB_CONTINUE = 0, ///< The vehicle can continue normally
VETSB_ENTERED_STATION = 1 << VETS_ENTERED_STATION, ///< The vehicle entered a station
VETSB_ENTERED_WORMHOLE = 1 << VETS_ENTERED_WORMHOLE, ///< The vehicle either entered a bridge, tunnel or depot tile (this includes the last tile of the bridge/tunnel)
VETSB_CANNOT_ENTER = 1 << VETS_CANNOT_ENTER, ///< The vehicle cannot enter the tile
};
DECLARE_ENUM_AS_BIT_SET(VehicleEnterTileStatus);
struct TileInfo {
uint x;
uint y;
Slope tileh;
TileIndex tile;
uint z;
};
struct TileDesc {
StringID str;
Owner owner[4];
StringID owner_type[4];
Date build_date;
StringID station_class;
StringID station_name;
const char *grf;
uint64 dparam[2];
};
typedef void DrawTileProc(TileInfo *ti);
typedef uint GetSlopeZProc(TileIndex tile, uint x, uint y);
typedef CommandCost ClearTileProc(TileIndex tile, byte flags);
typedef void GetAcceptedCargoProc(TileIndex tile, AcceptedCargo res);
typedef void GetTileDescProc(TileIndex tile, TileDesc *td);
/**
* GetTileTrackStatusProcs return a value that contains the possible tracks
* that can be taken on a given tile by a given transport.
* The return value contains the existing trackdirs and signal states.
*
* see track_func.h for usage of TrackStatus.
*
* @param tile the tile to get the track status from
* @param mode the mode of transportation
* @param sub_mode used to differentiate between different kinds within the mode
* @return the track status information
*/
typedef TrackStatus GetTileTrackStatusProc(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side);
typedef void GetProducedCargoProc(TileIndex tile, CargoID *b);
typedef void ClickTileProc(TileIndex tile);
typedef void AnimateTileProc(TileIndex tile);
typedef void TileLoopProc(TileIndex tile);
typedef void ChangeTileOwnerProc(TileIndex tile, Owner old_owner, Owner new_owner);
/** @see VehicleEnterTileStatus to see what the return values mean */
typedef VehicleEnterTileStatus VehicleEnterTileProc(Vehicle *v, TileIndex tile, int x, int y);
typedef Foundation GetFoundationProc(TileIndex tile, Slope tileh);
/**
* Called when a tile is affected by a terraforming operation.
* The function has to check if terraforming of the tile is allowed and return extra terraform-cost that depend on the tiletype.
* With DC_EXEC in flags it has to perform tiletype-specific actions (like clearing land etc., but not the terraforming itself).
*
* @note The terraforming has not yet taken place. So GetTileZ() and GetTileSlope() refer to the landscape before the terraforming operation.
*
* @param tile The involved tile.
* @param flags Command flags passed to the terraform command (DC_EXEC, DC_QUERY_COST, etc.).
* @param z_new TileZ after terraforming.
* @param tileh_new Slope after terraforming.
* @return Error code or extra cost for terraforming (like clearing land, building foundations, etc., but not the terraforming itself.)
*/
typedef CommandCost TerraformTileProc(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new);
/**
* Set of callback functions for performing tile operations of a given tile type.
* @see TileType */
struct TileTypeProcs {
DrawTileProc *draw_tile_proc;
GetSlopeZProc *get_slope_z_proc;
ClearTileProc *clear_tile_proc;
GetAcceptedCargoProc *get_accepted_cargo_proc;
GetTileDescProc *get_tile_desc_proc;
GetTileTrackStatusProc *get_tile_track_status_proc;
ClickTileProc *click_tile_proc;
AnimateTileProc *animate_tile_proc;
TileLoopProc *tile_loop_proc;
ChangeTileOwnerProc *change_tile_owner_proc;
GetProducedCargoProc *get_produced_cargo_proc;
VehicleEnterTileProc *vehicle_enter_tile_proc;
GetFoundationProc *get_foundation_proc;
TerraformTileProc *terraform_tile_proc;
};
extern const TileTypeProcs * const _tile_type_procs[16];
TrackStatus GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side = INVALID_DIAGDIR);
void GetAcceptedCargo(TileIndex tile, AcceptedCargo ac);
void ChangeTileOwner(TileIndex tile, Owner old_owner, Owner new_owner);
void AnimateTile(TileIndex tile);
void ClickTile(TileIndex tile);
void GetTileDesc(TileIndex tile, TileDesc *td);
#endif /* TILE_CMD_H */
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