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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.h Base for the NewGRF implementation. */
#ifndef NEWGRF_H
#define NEWGRF_H
#include "cargotype.h"
#include "rail_type.h"
#include "fileio_type.h"
#include "core/bitmath_func.hpp"
#include "core/alloc_type.hpp"
#include "core/smallvec_type.hpp"
/**
* List of different canal 'features'.
* Each feature gets an entry in the canal spritegroup table
*/
enum CanalFeature {
CF_WATERSLOPE,
CF_LOCKS,
CF_DIKES,
CF_ICON,
CF_DOCKS,
CF_RIVER_SLOPE,
CF_RIVER_EDGE,
CF_RIVER_GUI,
CF_BUOY,
CF_END,
};
/** Canal properties local to the NewGRF */
struct CanalProperties {
uint8 callback_mask; ///< Bitmask of canal callbacks that have to be called.
uint8 flags; ///< Flags controlling display.
};
enum GrfLoadingStage {
GLS_FILESCAN,
GLS_SAFETYSCAN,
GLS_LABELSCAN,
GLS_INIT,
GLS_RESERVE,
GLS_ACTIVATION,
GLS_END,
};
DECLARE_POSTFIX_INCREMENT(GrfLoadingStage)
enum GrfMiscBit {
GMB_DESERT_TREES_FIELDS = 0, // Unsupported.
GMB_DESERT_PAVED_ROADS = 1,
GMB_FIELD_BOUNDING_BOX = 2, // Unsupported.
GMB_TRAIN_WIDTH_32_PIXELS = 3, ///< Use 32 pixels per train vehicle in depot gui and vehicle details. Never set in the global variable; @see GRFFile::traininfo_vehicle_width
GMB_AMBIENT_SOUND_CALLBACK = 4,
GMB_CATENARY_ON_3RD_TRACK = 5, // Unsupported.
GMB_SECOND_ROCKY_TILE_SET = 6,
};
enum GrfSpecFeature {
GSF_TRAINS,
GSF_ROADVEHICLES,
GSF_SHIPS,
GSF_AIRCRAFT,
GSF_STATIONS,
GSF_CANALS,
GSF_BRIDGES,
GSF_HOUSES,
GSF_GLOBALVAR,
GSF_INDUSTRYTILES,
GSF_INDUSTRIES,
GSF_CARGOES,
GSF_SOUNDFX,
GSF_AIRPORTS,
GSF_SIGNALS,
GSF_OBJECTS,
GSF_RAILTYPES,
GSF_AIRPORTTILES,
GSF_END,
GSF_FAKE_TOWNS = GSF_END, ///< Fake town GrfSpecFeature for NewGRF debugging (parent scope)
GSF_FAKE_END, ///< End of the fake features
GSF_INVALID = 0xFF, ///< An invalid spec feature
};
static const uint32 INVALID_GRFID = 0xFFFFFFFF;
struct GRFLabel {
byte label;
uint32 nfo_line;
size_t pos;
struct GRFLabel *next;
};
/** Dynamic data of a loaded NewGRF */
struct GRFFile : ZeroedMemoryAllocator {
char *filename;
uint32 grfid;
byte grf_version;
uint sound_offset;
uint16 num_sounds;
struct StationSpec **stations;
struct HouseSpec **housespec;
struct IndustrySpec **industryspec;
struct IndustryTileSpec **indtspec;
struct ObjectSpec **objectspec;
struct AirportSpec **airportspec;
struct AirportTileSpec **airtspec;
uint32 param[0x80];
uint param_end; ///< one more than the highest set parameter
GRFLabel *label; ///< Pointer to the first label. This is a linked list, not an array.
SmallVector<CargoLabel, 4> cargo_list; ///< Cargo translation table (local ID -> label)
uint8 cargo_map[NUM_CARGO]; ///< Inverse cargo translation table (CargoID -> local ID)
SmallVector<RailTypeLabel, 4> railtype_list; ///< Railtype translation table
RailTypeByte railtype_map[RAILTYPE_END];
CanalProperties canal_local_properties[CF_END]; ///< Canal properties as set by this NewGRF
struct LanguageMap *language_map; ///< Mappings related to the languages.
int traininfo_vehicle_pitch; ///< Vertical offset for draing train images in depot GUI and vehicle details
uint traininfo_vehicle_width; ///< Width (in pixels) of a 8/8 train vehicle in depot GUI and vehicle details
uint32 grf_features; ///< Bitset of GrfSpecFeature the grf uses
PriceMultipliers price_base_multipliers; ///< Price base multipliers as set by the grf.
GRFFile(const struct GRFConfig *config);
~GRFFile();
/** Get GRF Parameter with range checking */
uint32 GetParam(uint number) const
{
/* Note: We implicitly test for number < lengthof(this->param) and return 0 for invalid parameters.
* In fact this is the more important test, as param is zeroed anyway. */
assert(this->param_end <= lengthof(this->param));
return (number < this->param_end) ? this->param[number] : 0;
}
};
enum ShoreReplacement {
SHORE_REPLACE_NONE, ///< No shore sprites were replaced.
SHORE_REPLACE_ACTION_5, ///< Shore sprites were replaced by Action5.
SHORE_REPLACE_ACTION_A, ///< Shore sprites were replaced by ActionA (using grass tiles for the corner-shores).
SHORE_REPLACE_ONLY_NEW, ///< Only corner-shores were loaded by Action5 (openttd(w/d).grf only).
};
struct GRFLoadedFeatures {
bool has_2CC; ///< Set if any vehicle is loaded which uses 2cc (two company colours).
uint64 used_liveries; ///< Bitmask of #LiveryScheme used by the defined engines.
bool has_newhouses; ///< Set if there are any newhouses loaded.
bool has_newindustries; ///< Set if there are any newindustries loaded.
ShoreReplacement shore; ///< It which way shore sprites were replaced.
};
/**
* Check for grf miscellaneous bits
* @param bit The bit to check.
* @return Whether the bit is set.
*/
static inline bool HasGrfMiscBit(GrfMiscBit bit)
{
extern byte _misc_grf_features;
return HasBit(_misc_grf_features, bit);
}
/* Indicates which are the newgrf features currently loaded ingame */
extern GRFLoadedFeatures _loaded_newgrf_features;
byte GetGRFContainerVersion();
void LoadNewGRFFile(struct GRFConfig *config, uint file_index, GrfLoadingStage stage, Subdirectory subdir);
void LoadNewGRF(uint load_index, uint file_index);
void ReloadNewGRFData(); // in saveload/afterload.cpp
void ResetNewGRFData();
void ResetPersistentNewGRFData();
void CDECL grfmsg(int severity, const char *str, ...) WARN_FORMAT(2, 3);
bool GetGlobalVariable(byte param, uint32 *value, const GRFFile *grffile);
StringID MapGRFStringID(uint32 grfid, StringID str);
void ShowNewGRFError();
#endif /* NEWGRF_H */
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