/* $Id$ */ #include "stdafx.h" #include #include "openttd.h" #include "debug.h" #include "gfx.h" #include "fileio.h" #include "functions.h" #include "engine.h" #include "spritecache.h" #include "station.h" #include "sprite.h" #include "newgrf.h" #include "variables.h" #include "string.h" #include "table/strings.h" #include "bridge.h" #include "town.h" #include "economy.h" #include "newgrf_engine.h" #include "vehicle.h" #include "newgrf_text.h" #include "table/sprites.h" #include "fontcache.h" #include "date.h" #include "currency.h" #include "landscape.h" #include "sound.h" #include "newgrf_config.h" #include "newgrf_house.h" #include "newgrf_sound.h" #include "newgrf_spritegroup.h" #include "helpers.hpp" #include "table/town_land.h" #include "cargotype.h" /* TTDPatch extended GRF format codec * (c) Petr Baudis 2004 (GPL'd) * Changes by Florian octo Forster are (c) by the OpenTTD development team. * * Contains portions of documentation by TTDPatch team. * Thanks especially to Josef Drexler for the documentation as well as a lot * of help at #tycoon. Also thanks to Michael Blunck for is GRF files which * served as subject to the initial testing of this codec. */ static int _skip_sprites; // XXX static uint _file_index; // XXX SpriteID _signal_base; SpriteID _coast_base; static GRFFile *_cur_grffile; GRFFile *_first_grffile; static SpriteID _cur_spriteid; static GrfLoadingStage _cur_stage; static uint32 _nfo_line; static GRFConfig *_cur_grfconfig; /* Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */ static byte _misc_grf_features = 0; /* 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */ static uint32 _ttdpatch_flags[8]; /* Used by Action 0x06 to preload a pseudo sprite and modify its content */ static byte *_preload_sprite = NULL; /* Set if any vehicle is loaded which uses 2cc (two company colours) */ bool _have_2cc = false; /* Set if there are any newhouses loaded. */ bool _have_newhouses = false; /* Default cargo translation table. By default there are 27 possible cargo types */ static const uint _default_cargo_max = 27; static CargoLabel _default_cargo_list[_default_cargo_max]; enum GrfDataType { GDT_SOUND, }; static byte _grf_data_blocks; static GrfDataType _grf_data_type; enum grfspec_feature { GSF_TRAIN, GSF_ROAD, GSF_SHIP, GSF_AIRCRAFT, GSF_STATION, GSF_CANAL, GSF_BRIDGE, GSF_TOWNHOUSE, GSF_GLOBALVAR, GSF_INDUSTRYTILES, GSF_INDUSTRIES, GSF_CARGOS, GSF_SOUNDFX, }; typedef void (*SpecialSpriteHandler)(byte *buf, int len); static const uint _vehcounts[4] = { /* GSF_TRAIN */ NUM_TRAIN_ENGINES, /* GSF_ROAD */ NUM_ROAD_ENGINES, /* GSF_SHIP */ NUM_SHIP_ENGINES, /* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES }; static const uint _vehshifts[4] = { /* GSF_TRAIN */ 0, /* GSF_ROAD */ ROAD_ENGINES_INDEX, /* GSF_SHIP */ SHIP_ENGINES_INDEX, /* GSF_AIRCRAFT */ AIRCRAFT_ENGINES_INDEX, }; enum { MAX_STATIONS = 256, }; static uint16 cargo_allowed[TOTAL_NUM_ENGINES]; static uint16 cargo_disallowed[TOTAL_NUM_ENGINES]; /* Contains the GRF ID of the owner of a vehicle if it has been reserved */ static uint32 _grm_engines[TOTAL_NUM_ENGINES]; /** DEBUG() function dedicated to newGRF debugging messages * Function is essentialy the same as DEBUG(grf, severity, ...) with the * addition of file:line information when parsing grf files. * NOTE: for the above reason(s) grfmsg() should ONLY be used for * loading/parsing grf files, not for runtime debug messages as there * is no file information available during that time. * @param severity debugging severity level, see debug.h * @param debugging message in printf() format */ void CDECL grfmsg(int severity, const char *str, ...) { char buf[1024]; va_list va; va_start(va, str); vsnprintf(buf, sizeof(buf), str, va); va_end(va); DEBUG(grf, severity, "[%s:%d] %s", _cur_grfconfig->filename, _nfo_line, buf); } static inline bool check_length(int real, int wanted, const char *str) { if (real >= wanted) return true; grfmsg(0, "%s: Invalid pseudo sprite length %d (expected %d)!", str, real, wanted); return false; } static inline byte grf_load_byte(byte **buf) { return *(*buf)++; } static uint16 grf_load_word(byte **buf) { uint16 val = grf_load_byte(buf); return val | (grf_load_byte(buf) << 8); } static uint16 grf_load_extended(byte** buf) { uint16 val; val = grf_load_byte(buf); if (val == 0xFF) val = grf_load_word(buf); return val; } static uint32 grf_load_dword(byte **buf) { uint32 val = grf_load_word(buf); return val | (grf_load_word(buf) << 16); } static uint32 grf_load_var(byte size, byte **buf) { switch (size) { case 1: return grf_load_byte(buf); case 2: return grf_load_word(buf); case 4: return grf_load_dword(buf); default: NOT_REACHED(); return 0; } } static const char *grf_load_string(byte **buf, size_t max_len) { const char *string = *(const char **)buf; size_t string_length = ttd_strnlen(string, max_len); if (string_length == max_len) { /* String was not NUL terminated, so make sure it is now. */ (*buf)[string_length - 1] = '\0'; grfmsg(7, "String was not terminated with a zero byte."); } else { /* Increase the string length to include the NUL byte. */ string_length++; } *buf += string_length; return string; } static GRFFile *GetFileByGRFID(uint32 grfid) { GRFFile *file; for (file = _first_grffile; file != NULL; file = file->next) { if (file->grfid == grfid) break; } return file; } static GRFFile *GetFileByFilename(const char *filename) { GRFFile *file; for (file = _first_grffile; file != NULL; file = file->next) { if (strcmp(file->filename, filename) == 0) break; } return file; } /** Used when setting an object's property to map to the GRF's strings * while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one * @param str StringID that we want to have the equivalent in OoenTTD * @return the properly adjusted StringID */ static StringID MapGRFStringID(StringID str) { /* 0xD0 and 0xDC stand for all the TextIDs in the range * of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts). * These strings are unique to each grf file, and thus require to be used with the * grfid in which they are declared */ if (GB(str, 8, 8) == 0xD0 || GB(str, 8, 8) == 0xDC) { return GetGRFStringID(_cur_grffile->grfid, str); } /* Map building names according to our lang file changes * 0x200F = Tall Office Block, first house name in the original data, the one that TTDPatch stil uses * 0x201F = Old houses is the last house name. * OpenTTD does not have exactly the same order aymore, so, the code below allows * to compensate for the difference */ if (str >= 0x200F && str <= 0x201F) return str + (STR_200F_TALL_OFFICE_BLOCK - 0x200F); return str; } typedef bool (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len); #define FOR_EACH_OBJECT for (i = 0; i < numinfo; i++) static void dewagonize(int condition, int engine) { EngineInfo *ei = &_engine_info[engine]; RailVehicleInfo *rvi = &_rail_vehicle_info[engine]; if (condition != 0) { ei->unk2 &= ~0x80; if (rvi->railveh_type == RAILVEH_WAGON) rvi->railveh_type = RAILVEH_SINGLEHEAD; } else { ei->unk2 |= 0x80; rvi->railveh_type = RAILVEH_WAGON; } } static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { EngineInfo *ei = &_engine_info[engine]; RailVehicleInfo *rvi = &_rail_vehicle_info[engine]; byte *buf = *bufp; int i; bool ret = false; switch (prop) { case 0x05: /* Track type */ FOR_EACH_OBJECT { uint8 tracktype = grf_load_byte(&buf); switch (tracktype) { case 0: rvi[i].railtype = rvi[i].engclass == 2 ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL; break; case 1: rvi[i].railtype = RAILTYPE_MONO; break; case 2: rvi[i].railtype = RAILTYPE_MAGLEV; break; default: grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype); break; } } break; case 0x08: /* AI passenger service */ /* TODO */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; case 0x09: /* Speed (1 unit is 1 kmh) */ FOR_EACH_OBJECT { uint16 speed = grf_load_word(&buf); if (speed == 0xFFFF) speed = 0; rvi[i].max_speed = speed; } break; case 0x0B: /* Power */ FOR_EACH_OBJECT { uint16 power = grf_load_word(&buf); if (rvi[i].railveh_type == RAILVEH_MULTIHEAD) power /= 2; rvi[i].power = power; dewagonize(power, engine + i); } break; case 0x0D: /* Running cost factor */ FOR_EACH_OBJECT { uint8 runcostfact = grf_load_byte(&buf); if (rvi[i].railveh_type == RAILVEH_MULTIHEAD) runcostfact /= 2; rvi[i].running_cost_base = runcostfact; } break; case 0x0E: /* Running cost base */ FOR_EACH_OBJECT { uint32 base = grf_load_dword(&buf); switch (base) { case 0x4C30: rvi[i].running_cost_class = 0; break; case 0x4C36: rvi[i].running_cost_class = 1; break; case 0x4C3C: rvi[i].running_cost_class = 2; break; case 0: break; /* Used by wagons */ default: grfmsg(1, "RailVehicleChangeInfo: Unsupported running cost base 0x%04X, ignoring", base); break; } } break; case 0x12: /* Sprite ID */ FOR_EACH_OBJECT { uint8 spriteid = grf_load_byte(&buf); /* TTD sprite IDs point to a location in a 16bit array, but we use it * as an array index, so we need it to be half the original value. */ if (spriteid < 0xFD) spriteid >>= 1; rvi[i].image_index = spriteid; } break; case 0x13: /* Dual-headed */ FOR_EACH_OBJECT { uint8 dual = grf_load_byte(&buf); if (dual != 0) { if (rvi[i].railveh_type != RAILVEH_MULTIHEAD) { // adjust power and running cost if needed rvi[i].power /= 2; rvi[i].running_cost_base /= 2; } rvi[i].railveh_type = RAILVEH_MULTIHEAD; } else { if (rvi[i].railveh_type == RAILVEH_MULTIHEAD) { // adjust power and running cost if needed rvi[i].power *= 2; rvi[i].running_cost_base *= 2; } rvi[i].railveh_type = rvi[i].power == 0 ? RAILVEH_WAGON : RAILVEH_SINGLEHEAD; } } break; case 0x14: /* Cargo capacity */ FOR_EACH_OBJECT rvi[i].capacity = grf_load_byte(&buf); break; case 0x15: /* Cargo type */ FOR_EACH_OBJECT { uint8 ctype = grf_load_byte(&buf); if (ctype < NUM_CARGO && HASBIT(_cargo_mask, ctype)) { rvi[i].cargo_type = ctype; } else { rvi[i].cargo_type = CT_INVALID; grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype); } } break; case 0x16: /* Weight */ FOR_EACH_OBJECT SB(rvi[i].weight, 0, 8, grf_load_byte(&buf)); break; case 0x17: /* Cost factor */ FOR_EACH_OBJECT rvi[i].base_cost = grf_load_byte(&buf); break; case 0x18: /* AI rank */ FOR_EACH_OBJECT rvi[i].ai_rank = grf_load_byte(&buf); break; case 0x19: /* Engine traction type */ /* What do the individual numbers mean? * 0x00 .. 0x07: Steam * 0x08 .. 0x27: Diesel * 0x28 .. 0x31: Electric * 0x32 .. 0x37: Monorail * 0x38 .. 0x41: Maglev */ FOR_EACH_OBJECT { uint8 traction = grf_load_byte(&buf); int engclass; if (traction <= 0x07) { engclass = 0; } else if (traction <= 0x27) { engclass = 1; } else if (traction <= 0x31) { engclass = 2; } else if (traction <= 0x41) { engclass = 2; } else { break; } if (rvi[i].railtype == RAILTYPE_RAIL && engclass == 2) rvi[i].railtype = RAILTYPE_ELECTRIC; if (rvi[i].railtype == RAILTYPE_ELECTRIC && engclass != 2) rvi[i].railtype = RAILTYPE_RAIL; rvi[i].engclass = engclass; } break; case 0x1A: /* Alter purchase list sort order */ FOR_EACH_OBJECT { EngineID pos = grf_load_byte(&buf); if (pos < NUM_TRAIN_ENGINES) { AlterRailVehListOrder(engine + i, pos); } else { grfmsg(2, "RailVehicleChangeInfo: Invalid train engine ID %d, ignoring", pos); } } break; case 0x1B: /* Powered wagons power bonus */ FOR_EACH_OBJECT rvi[i].pow_wag_power = grf_load_word(&buf); break; case 0x1C: /* Refit cost */ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf); break; case 0x1D: /* Refit cargo */ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf); break; case 0x1E: /* Callback */ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf); break; case 0x1F: /* Tractive effort coefficient */ FOR_EACH_OBJECT rvi[i].tractive_effort = grf_load_byte(&buf); break; case 0x21: /* Shorter vehicle */ FOR_EACH_OBJECT rvi[i].shorten_factor = grf_load_byte(&buf); break; case 0x22: /* Visual effect */ // see note in engine.h about rvi->visual_effect FOR_EACH_OBJECT rvi[i].visual_effect = grf_load_byte(&buf); break; case 0x23: /* Powered wagons weight bonus */ FOR_EACH_OBJECT rvi[i].pow_wag_weight = grf_load_byte(&buf); break; case 0x24: /* High byte of vehicle weight */ FOR_EACH_OBJECT { byte weight = grf_load_byte(&buf); if (weight > 4) { grfmsg(2, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring", weight << 8); } else { SB(rvi[i].weight, 8, 8, weight); } } break; case 0x25: /* User-defined bit mask to set when checking veh. var. 42 */ FOR_EACH_OBJECT rvi[i].user_def_data = grf_load_byte(&buf); break; case 0x27: /* Miscellaneous flags */ FOR_EACH_OBJECT { ei[i].misc_flags = grf_load_byte(&buf); if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true; } break; case 0x28: /* Cargo classes allowed */ FOR_EACH_OBJECT cargo_allowed[engine + i] = grf_load_word(&buf); break; case 0x29: /* Cargo classes disallowed */ FOR_EACH_OBJECT cargo_disallowed[engine + i] = grf_load_word(&buf); break; case 0x2A: /* Long format introduction date (days since year 0) */ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf); break; /* TODO */ /* Fall-through for unimplemented one byte long properties. */ case 0x20: /* Air drag */ case 0x26: /* Retire vehicle early */ /* TODO */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { EngineInfo *ei = &_engine_info[ROAD_ENGINES_INDEX + engine]; RoadVehicleInfo *rvi = &_road_vehicle_info[engine]; byte *buf = *bufp; int i; bool ret = false; switch (prop) { case 0x08: /* Speed (1 unit is 0.5 kmh) */ FOR_EACH_OBJECT rvi[i].max_speed = grf_load_byte(&buf); break; case 0x09: /* Running cost factor */ FOR_EACH_OBJECT rvi[i].running_cost = grf_load_byte(&buf); break; case 0x0A: /* Running cost base */ /* TODO: I have no idea. --pasky */ FOR_EACH_OBJECT grf_load_dword(&buf); ret = true; break; case 0x0E: /* Sprite ID */ FOR_EACH_OBJECT { uint8 spriteid = grf_load_byte(&buf); // cars have different custom id in the GRF file if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; rvi[i].image_index = spriteid; } break; case 0x0F: /* Cargo capacity */ FOR_EACH_OBJECT rvi[i].capacity = grf_load_byte(&buf); break; case 0x10: /* Cargo type */ FOR_EACH_OBJECT { uint8 cargo = grf_load_byte(&buf); if (cargo < NUM_CARGO && HASBIT(_cargo_mask, cargo)) { rvi[i].cargo_type = cargo; } else { rvi[i].cargo_type = CT_INVALID; grfmsg(2, "RoadVehicleChangeInfo: Invalid cargo type %d, using first refittable", cargo); } } break; case 0x11: /* Cost factor */ FOR_EACH_OBJECT rvi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost? break; case 0x12: /* SFX */ FOR_EACH_OBJECT rvi[i].sfx = (SoundFx)grf_load_byte(&buf); break; case 0x13: /* Power in 10hp */ case 0x14: /* Weight in 1/4 tons */ case 0x15: /* Speed in mph*0.8 */ /* TODO: Support for road vehicles realistic power * computations (called rvpower in TTDPatch) is just * missing in OTTD yet. --pasky */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; case 0x16: /* Cargos available for refitting */ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf); break; case 0x17: /* Callback mask */ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf); break; case 0x1A: /* Refit cost */ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf); break; case 0x1C: /* Miscellaneous flags */ FOR_EACH_OBJECT { ei[i].misc_flags = grf_load_byte(&buf); if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true; } break; case 0x1D: /* Cargo classes allowed */ FOR_EACH_OBJECT cargo_allowed[ROAD_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x1E: /* Cargo classes disallowed */ FOR_EACH_OBJECT cargo_disallowed[ROAD_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x1F: /* Long format introduction date (days since year 0) */ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf); break; case 0x18: /* Tractive effort */ case 0x19: /* Air drag */ case 0x1B: /* Retire vehicle early */ /* TODO */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { EngineInfo *ei = &_engine_info[SHIP_ENGINES_INDEX + engine]; ShipVehicleInfo *svi = &_ship_vehicle_info[engine]; byte *buf = *bufp; int i; bool ret = false; //printf("e %x prop %x?\n", engine, prop); switch (prop) { case 0x08: /* Sprite ID */ FOR_EACH_OBJECT { uint8 spriteid = grf_load_byte(&buf); // ships have different custom id in the GRF file if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; svi[i].image_index = spriteid; } break; case 0x09: /* Refittable */ FOR_EACH_OBJECT svi[i].refittable = (grf_load_byte(&buf) != 0); break; case 0x0A: /* Cost factor */ FOR_EACH_OBJECT svi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost? break; case 0x0B: /* Speed (1 unit is 0.5 kmh) */ FOR_EACH_OBJECT svi[i].max_speed = grf_load_byte(&buf); break; case 0x0C: /* Cargo type */ FOR_EACH_OBJECT { uint8 cargo = grf_load_byte(&buf); if (cargo < NUM_CARGO && HASBIT(_cargo_mask, cargo)) { svi[i].cargo_type = cargo; } else { svi[i].cargo_type = CT_INVALID; grfmsg(2, "ShipVehicleChangeInfo: Invalid cargo type %d, using first refittable", cargo); } } break; case 0x0D: /* Cargo capacity */ FOR_EACH_OBJECT svi[i].capacity = grf_load_word(&buf); break; case 0x0F: /* Running cost factor */ FOR_EACH_OBJECT svi[i].running_cost = grf_load_byte(&buf); break; case 0x10: /* SFX */ FOR_EACH_OBJECT svi[i].sfx = (SoundFx)grf_load_byte(&buf); break; case 0x11: /* Cargos available for refitting */ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf); break; case 0x12: /* Callback mask */ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf); break; case 0x13: /* Refit cost */ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf); break; case 0x17: /* Miscellaneous flags */ FOR_EACH_OBJECT { ei[i].misc_flags = grf_load_byte(&buf); if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true; } break; case 0x18: /* Cargo classes allowed */ FOR_EACH_OBJECT cargo_allowed[SHIP_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x19: /* Cargo classes disallowed */ FOR_EACH_OBJECT cargo_disallowed[SHIP_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x1A: /* Long format introduction date (days since year 0) */ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf); break; case 0x14: /* Ocean speed fraction */ case 0x15: /* Canal speed fraction */ case 0x16: /* Retire vehicle early */ /* TODO */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { EngineInfo *ei = &_engine_info[AIRCRAFT_ENGINES_INDEX + engine]; AircraftVehicleInfo *avi = &_aircraft_vehicle_info[engine]; byte *buf = *bufp; int i; bool ret = false; //printf("e %x prop %x?\n", engine, prop); switch (prop) { case 0x08: /* Sprite ID */ FOR_EACH_OBJECT { uint8 spriteid = grf_load_byte(&buf); // aircraft have different custom id in the GRF file if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; avi[i].image_index = spriteid; } break; case 0x09: /* Helicopter */ FOR_EACH_OBJECT { if (grf_load_byte(&buf) == 0) { avi[i].subtype = AIR_HELI; } else { SB(avi[i].subtype, 0, 1, 1); // AIR_CTOL } } break; case 0x0A: /* Large */ FOR_EACH_OBJECT SB(avi[i].subtype, 1, 1, (grf_load_byte(&buf) != 0 ? 1 : 0)); // AIR_FAST break; case 0x0B: /* Cost factor */ FOR_EACH_OBJECT avi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost? break; case 0x0C: /* Speed (1 unit is 8 mph, we translate to 1 unit is 1 km/h) */ FOR_EACH_OBJECT avi[i].max_speed = (grf_load_byte(&buf) * 129) / 10; break; case 0x0D: /* Acceleration */ FOR_EACH_OBJECT avi[i].acceleration = (grf_load_byte(&buf) * 129) / 10; break; case 0x0E: /* Running cost factor */ FOR_EACH_OBJECT avi[i].running_cost = grf_load_byte(&buf); break; case 0x0F: /* Passenger capacity */ FOR_EACH_OBJECT avi[i].passenger_capacity = grf_load_word(&buf); break; case 0x11: /* Mail capacity */ FOR_EACH_OBJECT avi[i].mail_capacity = grf_load_byte(&buf); break; case 0x12: /* SFX */ FOR_EACH_OBJECT avi[i].sfx = (SoundFx)grf_load_byte(&buf); break; case 0x13: /* Cargos available for refitting */ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf); break; case 0x14: /* Callback mask */ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf); break; case 0x15: /* Refit cost */ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf); break; case 0x17: /* Miscellaneous flags */ FOR_EACH_OBJECT { ei[i].misc_flags = grf_load_byte(&buf); if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true; } break; case 0x18: /* Cargo classes allowed */ FOR_EACH_OBJECT cargo_allowed[AIRCRAFT_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x19: /* Cargo classes disallowed */ FOR_EACH_OBJECT cargo_disallowed[AIRCRAFT_ENGINES_INDEX + engine + i] = grf_load_word(&buf); break; case 0x1A: /* Long format introduction date (days since year 0) */ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf); break; case 0x16: /* Retire vehicle early */ /* TODO */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int len) { StationSpec **statspec; byte *buf = *bufp; int i; bool ret = false; if (stid + numinfo > MAX_STATIONS) { grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS); return false; } /* Allocate station specs if necessary */ if (_cur_grffile->stations == NULL) _cur_grffile->stations = CallocT(MAX_STATIONS); statspec = &_cur_grffile->stations[stid]; if (prop != 0x08) { /* Check that all stations we are modifying are defined. */ FOR_EACH_OBJECT { if (statspec[i] == NULL) { grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i); return false; } } } switch (prop) { case 0x08: /* Class ID */ FOR_EACH_OBJECT { /* Property 0x08 is special; it is where the station is allocated */ if (statspec[i] == NULL) statspec[i] = CallocT(1); /* Swap classid because we read it in BE meaning WAYP or DFLT */ uint32 classid = grf_load_dword(&buf); statspec[i]->sclass = AllocateStationClass(BSWAP32(classid)); } break; case 0x09: /* Define sprite layout */ FOR_EACH_OBJECT { StationSpec *statspec = _cur_grffile->stations[stid + i]; statspec->tiles = grf_load_extended(&buf); statspec->renderdata = CallocT(statspec->tiles); statspec->copied_renderdata = false; for (uint t = 0; t < statspec->tiles; t++) { DrawTileSprites *dts = &statspec->renderdata[t]; uint seq_count = 0; dts->seq = NULL; dts->ground_sprite = grf_load_word(&buf); dts->ground_pal = grf_load_word(&buf); if (dts->ground_sprite == 0) continue; if (HASBIT(dts->ground_pal, 15)) { CLRBIT(dts->ground_pal, 15); SETBIT(dts->ground_sprite, SPRITE_MODIFIER_USE_OFFSET); } while (buf < *bufp + len) { DrawTileSeqStruct *dtss; // no relative bounding box support dts->seq = ReallocT((DrawTileSeqStruct*)dts->seq, ++seq_count); dtss = (DrawTileSeqStruct*) &dts->seq[seq_count - 1]; dtss->delta_x = grf_load_byte(&buf); if ((byte) dtss->delta_x == 0x80) break; dtss->delta_y = grf_load_byte(&buf); dtss->delta_z = grf_load_byte(&buf); dtss->size_x = grf_load_byte(&buf); dtss->size_y = grf_load_byte(&buf); dtss->size_z = grf_load_byte(&buf); dtss->image = grf_load_word(&buf); dtss->pal = grf_load_word(&buf); /* Remap flags as ours collide */ if (HASBIT(dtss->pal, 15)) { CLRBIT(dtss->pal, 15); SETBIT(dtss->image, SPRITE_MODIFIER_USE_OFFSET); } if (HASBIT(dtss->image, 15)) { CLRBIT(dtss->image, 15); SETBIT(dtss->image, PALETTE_MODIFIER_COLOR); } if (HASBIT(dtss->image, 14)) { CLRBIT(dtss->image, 14); SETBIT(dtss->image, PALETTE_MODIFIER_TRANSPARENT); } } } } break; case 0x0A: /* Copy sprite layout */ FOR_EACH_OBJECT { StationSpec *statspec = _cur_grffile->stations[stid + i]; byte srcid = grf_load_byte(&buf); const StationSpec *srcstatspec = _cur_grffile->stations[srcid]; statspec->tiles = srcstatspec->tiles; statspec->renderdata = srcstatspec->renderdata; statspec->copied_renderdata = true; } break; case 0x0B: /* Callback mask */ FOR_EACH_OBJECT statspec[i]->callbackmask = grf_load_byte(&buf); break; case 0x0C: /* Disallowed number of platforms */ FOR_EACH_OBJECT statspec[i]->disallowed_platforms = grf_load_byte(&buf); break; case 0x0D: /* Disallowed platform lengths */ FOR_EACH_OBJECT statspec[i]->disallowed_lengths = grf_load_byte(&buf); break; case 0x0E: /* Define custom layout */ FOR_EACH_OBJECT { StationSpec *statspec = _cur_grffile->stations[stid + i]; statspec->copied_layouts = false; while (buf < *bufp + len) { byte length = grf_load_byte(&buf); byte number = grf_load_byte(&buf); StationLayout layout; uint l, p; if (length == 0 || number == 0) break; //debug("l %d > %d ?", length, stat->lengths); if (length > statspec->lengths) { statspec->platforms = ReallocT(statspec->platforms, length); memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths); statspec->layouts = ReallocT(statspec->layouts, length); memset(statspec->layouts + statspec->lengths, 0, (length - statspec->lengths) * sizeof(*statspec->layouts)); statspec->lengths = length; } l = length - 1; // index is zero-based //debug("p %d > %d ?", number, stat->platforms[l]); if (number > statspec->platforms[l]) { statspec->layouts[l] = ReallocT(statspec->layouts[l], number); // We expect NULL being 0 here, but C99 guarantees that. memset(statspec->layouts[l] + statspec->platforms[l], 0, (number - statspec->platforms[l]) * sizeof(**statspec->layouts)); statspec->platforms[l] = number; } p = 0; layout = MallocT(length * number); for (l = 0; l < length; l++) { for (p = 0; p < number; p++) { layout[l * number + p] = grf_load_byte(&buf); } } l--; p--; free(statspec->layouts[l][p]); statspec->layouts[l][p] = layout; } } break; case 0x0F: /* Copy custom layout */ FOR_EACH_OBJECT { StationSpec *statspec = _cur_grffile->stations[stid + i]; byte srcid = grf_load_byte(&buf); const StationSpec *srcstatspec = _cur_grffile->stations[srcid]; statspec->lengths = srcstatspec->lengths; statspec->platforms = srcstatspec->platforms; statspec->layouts = srcstatspec->layouts; statspec->copied_layouts = true; } break; case 0x10: /* Little/lots cargo threshold */ FOR_EACH_OBJECT statspec[i]->cargo_threshold = grf_load_word(&buf); break; case 0x11: /* Pylon placement */ FOR_EACH_OBJECT statspec[i]->pylons = grf_load_byte(&buf); break; case 0x12: /* Cargo types for random triggers */ FOR_EACH_OBJECT statspec[i]->cargo_triggers = grf_load_dword(&buf); break; case 0x13: /* General flags */ FOR_EACH_OBJECT statspec[i]->flags = grf_load_byte(&buf); break; case 0x14: /* Overhead wire placement */ FOR_EACH_OBJECT statspec[i]->wires = grf_load_byte(&buf); break; case 0x15: /* Blocked tiles */ FOR_EACH_OBJECT statspec[i]->blocked = grf_load_byte(&buf); break; case 0x16: /* TODO Animation info */ FOR_EACH_OBJECT grf_load_word(&buf); ret = true; break; case 0x17: /* TODO Animation speed */ FOR_EACH_OBJECT grf_load_byte(&buf); ret = true; break; case 0x18: /* TODO Animation triggers */ FOR_EACH_OBJECT grf_load_word(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; int i; bool ret = false; switch (prop) { case 0x08: /* Year of availability */ FOR_EACH_OBJECT _bridge[brid + i].avail_year = ORIGINAL_BASE_YEAR + grf_load_byte(&buf); break; case 0x09: /* Minimum length */ FOR_EACH_OBJECT _bridge[brid + i].min_length = grf_load_byte(&buf); break; case 0x0A: /* Maximum length */ FOR_EACH_OBJECT _bridge[brid + i].max_length = grf_load_byte(&buf); break; case 0x0B: /* Cost factor */ FOR_EACH_OBJECT _bridge[brid + i].price = grf_load_byte(&buf); break; case 0x0C: /* Maximum speed */ FOR_EACH_OBJECT _bridge[brid + i].speed = grf_load_word(&buf); break; case 0x0D: /* Bridge sprite tables */ FOR_EACH_OBJECT { Bridge *bridge = &_bridge[brid + i]; byte tableid = grf_load_byte(&buf); byte numtables = grf_load_byte(&buf); if (bridge->sprite_table == NULL) { /* Allocate memory for sprite table pointers and zero out */ bridge->sprite_table = CallocT(7); } for (; numtables-- != 0; tableid++) { if (tableid >= 7) { // skip invalid data grfmsg(1, "BridgeChangeInfo: Table %d >= 7, skipping", tableid); for (byte sprite = 0; sprite < 32; sprite++) grf_load_dword(&buf); continue; } if (bridge->sprite_table[tableid] == NULL) { bridge->sprite_table[tableid] = MallocT(32); } for (byte sprite = 0; sprite < 32; sprite++) { SpriteID image = grf_load_word(&buf); SpriteID pal = grf_load_word(&buf); if (HASBIT(pal, 15)) { SETBIT(image, PALETTE_MODIFIER_TRANSPARENT); } /* Clear old color modifer bit */ CLRBIT(image, 15); bridge->sprite_table[tableid][sprite].sprite = image; bridge->sprite_table[tableid][sprite].pal = pal; } } } break; case 0x0E: /* Flags; bit 0 - disable far pillars */ FOR_EACH_OBJECT _bridge[brid + i].flags = grf_load_byte(&buf); break; case 0x0F: /* Long format year of availability (year since year 0) */ FOR_EACH_OBJECT _bridge[brid + i].avail_year = clamp(grf_load_dword(&buf), MIN_YEAR, MAX_YEAR); break; default: ret = true; } *bufp = buf; return ret; } static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, int len) { HouseSpec **housespec; byte *buf = *bufp; int i; bool ret = false; if (hid + numinfo >= HOUSE_MAX) { grfmsg(1, "TownHouseChangeInfo: Too many houses loaded (%u), max (%u). Ignoring.", hid + numinfo, HOUSE_MAX-1); return false; } /* Allocate house specs if they haven't been allocated already. */ if (_cur_grffile->housespec == NULL) { _cur_grffile->housespec = CallocT(HOUSE_MAX); /* Reset any overrides that have been set. */ ResetHouseOverrides(); } housespec = &_cur_grffile->housespec[hid]; if (prop != 0x08) { /* Check that all the houses being modified have been defined. */ FOR_EACH_OBJECT { if (housespec[i] == NULL) { grfmsg(2, "TownHouseChangeInfo: Attempt to modify undefined house %u. Ignoring.", hid + i); return false; } } } switch (prop) { case 0x08: // Substitute building type, and definition of a new house FOR_EACH_OBJECT { byte subs_id = grf_load_byte(&buf); if (subs_id == 0xFF) { /* Instead of defining a new house, a substitute house id * of 0xFF disables the old house with the current id. */ _house_specs[hid + i].enabled = false; continue; } else if (subs_id >= NEW_HOUSE_OFFSET) { /* The substitute id must be one of the original houses. */ grfmsg(2, "TownHouseChangeInfo: Attempt to use new house %u as substitute house for %u. Ignoring.", subs_id, hid + i); return false; } /* Allocate space for this house. */ if (housespec[i] == NULL) housespec[i] = CallocT(1); memcpy(housespec[i], &_house_specs[subs_id], sizeof(_house_specs[subs_id])); housespec[i]->enabled = true; housespec[i]->local_id = hid + i; housespec[i]->substitute_id = subs_id; housespec[i]->grffile = _cur_grffile; housespec[i]->random_colour[0] = 0x04; // those 4 random colours are the base colour housespec[i]->random_colour[1] = 0x08; // for all new houses housespec[i]->random_colour[2] = 0x0C; // they stand for red, blue, orange and green housespec[i]->random_colour[3] = 0x06; /* New houses do not (currently) expect to have a default start * date before 1930, as this breaks the build date stuff. See * FinaliseHouseArray() for more details. */ if (housespec[i]->min_date < 1930) housespec[i]->min_date = 1930; } _have_newhouses = true; break; case 0x09: // Building flags FOR_EACH_OBJECT { byte state = grf_load_byte(&buf); housespec[i]->building_flags = (BuildingFlags)state; } break; case 0x0A: // Availability years FOR_EACH_OBJECT { uint16 years = grf_load_word(&buf); housespec[i]->min_date = GB(years, 0, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 0, 8); housespec[i]->max_date = GB(years, 8, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 8, 8); } break; case 0x0B: // Population FOR_EACH_OBJECT housespec[i]->population = grf_load_byte(&buf); break; case 0x0C: // Mail generation multiplier FOR_EACH_OBJECT housespec[i]->mail_generation = grf_load_byte(&buf); break; case 0x0D: // Passenger acceptance case 0x0E: // Mail acceptance FOR_EACH_OBJECT housespec[i]->cargo_acceptance[prop - 0x0D] = grf_load_byte(&buf); break; case 0x0F: // Goods/candy, food/fizzy drinks acceptance FOR_EACH_OBJECT { int8 goods = grf_load_byte(&buf); /* If value of goods is negative, it means in fact food or, if in toyland, fizzy_drink acceptance. * Else, we have "standard" 3rd cargo type, goods or candy, for toyland once more */ housespec[i]->accepts_cargo[2] = (goods >= 0) ? ((_opt.landscape == LT_CANDY) ? CT_CANDY : CT_GOODS) : ((_opt.landscape == LT_CANDY) ? CT_FIZZY_DRINKS : CT_FOOD); housespec[i]->cargo_acceptance[2] = abs(goods); // but we do need positive value here } break; case 0x10: // Local authority rating decrease on removal FOR_EACH_OBJECT housespec[i]->remove_rating_decrease = grf_load_word(&buf); break; case 0x11: // Removal cost multiplier FOR_EACH_OBJECT housespec[i]->removal_cost = grf_load_byte(&buf); break; case 0x12: // Building name ID FOR_EACH_OBJECT housespec[i]->building_name = MapGRFStringID(grf_load_word(&buf)); break; case 0x13: // Building availability mask FOR_EACH_OBJECT { uint16 avail = grf_load_word(&buf); housespec[i]->building_availability = (HouseZones)avail; } break; case 0x14: // House callback flags FOR_EACH_OBJECT housespec[i]->callback_mask = grf_load_byte(&buf); break; case 0x15: // House override byte FOR_EACH_OBJECT { byte override = grf_load_byte(&buf); /* The house being overridden must be an original house. */ if (override >= NEW_HOUSE_OFFSET) { grfmsg(2, "TownHouseChangeInfo: Attempt to override new house %u with house id %u. Ignoring.", override, hid); return false; } AddHouseOverride(hid, override); } break; case 0x16: // Periodic refresh multiplier FOR_EACH_OBJECT housespec[i]->processing_time = grf_load_byte(&buf); break; case 0x17: // Four random colours to use FOR_EACH_OBJECT { uint j; for (j = 0; j < 4; j++) housespec[i]->random_colour[j] = grf_load_byte(&buf); } break; case 0x18: // Relative probability of appearing FOR_EACH_OBJECT housespec[i]->probability = grf_load_byte(&buf); break; case 0x19: // Extra flags FOR_EACH_OBJECT { byte flags = grf_load_byte(&buf); housespec[i]->extra_flags = (HouseExtraFlags)flags; } break; case 0x1A: // Animation frames FOR_EACH_OBJECT housespec[i]->animation_frames = grf_load_byte(&buf); break; case 0x1B: // Animation speed FOR_EACH_OBJECT housespec[i]->animation_speed = clamp(grf_load_byte(&buf), 2, 16); break; case 0x1C: // Class of the building type FOR_EACH_OBJECT housespec[i]->class_id = AllocateHouseClassID(grf_load_byte(&buf), _cur_grffile->grfid); break; case 0x1D: // Callback flags 2 FOR_EACH_OBJECT housespec[i]->callback_mask |= (grf_load_byte(&buf) << 8); break; case 0x1E: // Accepted cargo types FOR_EACH_OBJECT grf_load_dword(&buf); ret = true; break; default: ret = true; break; } *bufp = buf; return ret; } static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; int i; bool ret = false; switch (prop) { case 0x08: /* Cost base factor */ FOR_EACH_OBJECT { byte factor = grf_load_byte(&buf); uint price = gvid + i; if (price < NUM_PRICES) { SetPriceBaseMultiplier(price, factor); } else { grfmsg(1, "GlobalVarChangeInfo: Price %d out of range, ignoring", price); } } break; case 0x09: /* Cargo translation table */ /* This is loaded during the initialisation stage, so just skip it here. */ /* Each entry is 4 bytes. */ buf += numinfo * 4; break; case 0x0A: // Currency display names FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); StringID newone = GetGRFStringID(_cur_grffile->grfid, grf_load_word(&buf)); if ((newone != STR_UNDEFINED) && (curidx < NUM_CURRENCY)) { _currency_specs[curidx].name = newone; } } break; case 0x0B: // Currency multipliers FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 rate = grf_load_dword(&buf); if (curidx < NUM_CURRENCY) { /* TTDPatch uses a multiple of 1000 for its conversion calculations, * which OTTD does not. For this reason, divide grf value by 1000, * to be compatible */ _currency_specs[curidx].rate = rate / 1000; } else { grfmsg(1, "GlobalVarChangeInfo: Currency multipliers %d out of range, ignoring", curidx); } } break; case 0x0C: // Currency options FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint16 options = grf_load_word(&buf); if (curidx < NUM_CURRENCY) { _currency_specs[curidx].separator = GB(options, 0, 8); /* By specifying only one bit, we prevent errors, * since newgrf specs said that only 0 and 1 can be set for symbol_pos */ _currency_specs[curidx].symbol_pos = GB(options, 8, 1); } else { grfmsg(1, "GlobalVarChangeInfo: Currency option %d out of range, ignoring", curidx); } } break; case 0x0D: // Currency prefix symbol FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 tempfix = grf_load_dword(&buf); if (curidx < NUM_CURRENCY) { memcpy(_currency_specs[curidx].prefix,&tempfix,4); _currency_specs[curidx].prefix[4] = 0; } else { grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx); } } break; case 0x0E: // Currency suffix symbol FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 tempfix = grf_load_dword(&buf); if (curidx < NUM_CURRENCY) { memcpy(&_currency_specs[curidx].suffix,&tempfix,4); _currency_specs[curidx].suffix[4] = 0; } else { grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx); } } break; case 0x0F: // Euro introduction dates FOR_EACH_OBJECT { uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); Year year_euro = grf_load_word(&buf); if (curidx < NUM_CURRENCY) { _currency_specs[curidx].to_euro = year_euro; } else { grfmsg(1, "GlobalVarChangeInfo: Euro intro date %d out of range, ignoring", curidx); } } break; case 0x10: // 12 * 32 * B Snow line height table if (numinfo > 1 || IsSnowLineSet()) { grfmsg(1, "GlobalVarChangeInfo: The snowline can only be set once (%d)", numinfo); } else if (len < SNOW_LINE_MONTHS * SNOW_LINE_DAYS) { grfmsg(1, "GlobalVarChangeInfo: Not enough entries set in the snowline table (%d)", len); } else { byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS]; for (uint i = 0; i < SNOW_LINE_MONTHS; i++) { for (uint j = 0; j < SNOW_LINE_DAYS; j++) { table[i][j] = grf_load_byte(&buf); } } SetSnowLine(table); } break; default: ret = true; } *bufp = buf; return ret; } static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; int i; bool ret = false; if (_cur_grffile->sound_offset == 0) { grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping"); return false; } switch (prop) { case 0x08: /* Relative volume */ FOR_EACH_OBJECT { uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds(); if (sound >= GetNumSounds()) { grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds()); } else { GetSound(sound)->volume = grf_load_byte(&buf); } } break; case 0x09: /* Priority */ FOR_EACH_OBJECT { uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds(); if (sound >= GetNumSounds()) { grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds()); } else { GetSound(sound)->priority = grf_load_byte(&buf); } } break; case 0x0A: /* Override old sound */ FOR_EACH_OBJECT { uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds(); uint orig_sound = grf_load_byte(&buf); if (sound >= GetNumSounds() || orig_sound >= GetNumSounds()) { grfmsg(1, "SoundEffectChangeInfo: Sound %d or %d not defined (max %d)", sound, orig_sound, GetNumSounds()); } else { FileEntry *newfe = GetSound(sound); FileEntry *oldfe = GetSound(orig_sound); /* Literally copy the data of the new sound over the original */ *oldfe = *newfe; } } break; default: ret = true; } *bufp = buf; return ret; } /* Action 0x00 */ static void FeatureChangeInfo(byte *buf, int len) { byte *bufend = buf + len; uint i; /* <00> ()... * * B feature 0, 1, 2 or 3 for trains, road vehicles, ships or planes * 4 for defining new train station sets * B num-props how many properties to change per vehicle/station * B num-info how many vehicles/stations to change * B id ID of first vehicle/station to change, if num-info is * greater than one, this one and the following * vehicles/stations will be changed * B property what property to change, depends on the feature * V new-info new bytes of info (variable size; depends on properties) */ /* TODO: Bridges, town houses. */ static const VCI_Handler handler[] = { /* GSF_TRAIN */ RailVehicleChangeInfo, /* GSF_ROAD */ RoadVehicleChangeInfo, /* GSF_SHIP */ ShipVehicleChangeInfo, /* GSF_AIRCRAFT */ AircraftVehicleChangeInfo, /* GSF_STATION */ StationChangeInfo, /* GSF_CANAL */ NULL, /* GSF_BRIDGE */ BridgeChangeInfo, /* GSF_TOWNHOUSE */ TownHouseChangeInfo, /* GSF_GLOBALVAR */ GlobalVarChangeInfo, /* GSF_INDUSTRYTILES */NULL, /* GSF_INDUSTRIES */ NULL, /* GSF_CARGOS */ NULL, /* GSF_SOUNDFX */ SoundEffectChangeInfo, }; EngineInfo *ei = NULL; if (len == 1) { grfmsg(8, "Silently ignoring one-byte special sprite 0x00"); return; } if (!check_length(len, 6, "FeatureChangeInfo")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 numprops = grf_load_byte(&buf); uint numinfo = grf_load_byte(&buf); uint engine = grf_load_byte(&buf); grfmsg(6, "FeatureChangeInfo: feature %d, %d properties, to apply to %d+%d", feature, numprops, engine, numinfo); if (feature >= lengthof(handler) || handler[feature] == NULL) { grfmsg(1, "FeatureChangeInfo: Unsupported feature %d, skipping", feature); return; } if (feature <= GSF_AIRCRAFT) { if (engine + numinfo > _vehcounts[feature]) { grfmsg(0, "FeatureChangeInfo: Last engine ID %d out of bounds (max %d), skipping", engine + numinfo, _vehcounts[feature]); return; } ei = &_engine_info[engine + _vehshifts[feature]]; } while (numprops-- && buf < bufend) { uint8 prop = grf_load_byte(&buf); bool ignoring = false; switch (feature) { case GSF_TRAIN: case GSF_ROAD: case GSF_SHIP: case GSF_AIRCRAFT: /* Common properties for vehicles */ switch (prop) { case 0x00: /* Introduction date */ FOR_EACH_OBJECT ei[i].base_intro = grf_load_word(&buf) + DAYS_TILL_ORIGINAL_BASE_YEAR; break; case 0x02: /* Decay speed */ FOR_EACH_OBJECT SB(ei[i].unk2, 0, 7, grf_load_byte(&buf) & 0x7F); break; case 0x03: /* Vehicle life */ FOR_EACH_OBJECT ei[i].lifelength = grf_load_byte(&buf); break; case 0x04: /* Model life */ FOR_EACH_OBJECT ei[i].base_life = grf_load_byte(&buf); break; case 0x06: /* Climates available */ FOR_EACH_OBJECT ei[i].climates = grf_load_byte(&buf); break; case 0x07: /* Loading speed */ /* Hyronymus explained me what does * this mean and insists on having a * credit ;-). --pasky */ FOR_EACH_OBJECT ei[i].load_amount = grf_load_byte(&buf); break; default: if (handler[feature](engine, numinfo, prop, &buf, bufend - buf)) { ignoring = true; } break; } break; default: if (handler[feature](engine, numinfo, prop, &buf, bufend - buf)) { ignoring = true; } break; } if (ignoring) grfmsg(2, "FeatureChangeInfo: Ignoring property 0x%02X (not implemented)", prop); } } /* Action 0x00 (GLS_SAFETYSCAN) */ static void SafeChangeInfo(byte *buf, int len) { if (len == 1) { grfmsg(8, "Silently ignoring one-byte special sprite 0x00"); return; } if (!check_length(len, 6, "SafeChangeInfo")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 numprops = grf_load_byte(&buf); grf_load_byte(&buf); grf_load_byte(&buf); if (feature == GSF_BRIDGE && numprops == 1) { uint8 prop = grf_load_byte(&buf); /* Bridge property 0x0D is redefinition of sprite layout tables, which * is considered safe. */ if (prop == 0x0D) return; } SETBIT(_cur_grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _skip_sprites = -1; } /* Action 0x00 (GLS_INIT) */ static void InitChangeInfo(byte *buf, int len) { byte *bufend = buf + len; if (len == 1) { grfmsg(8, "Silently ignoring one-byte special sprite 0x00"); return; } if (!check_length(len, 6, "InitChangeInfo")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 numprops = grf_load_byte(&buf); uint8 numinfo = grf_load_byte(&buf); uint8 index = grf_load_byte(&buf); while (numprops-- && buf < bufend) { uint8 prop = grf_load_byte(&buf); switch (feature) { case GSF_GLOBALVAR: switch (prop) { case 0x09: /* Cargo Translation Table */ if (index != 0) { grfmsg(1, "InitChangeInfo: Cargo translation table must start at zero"); return; } free(_cur_grffile->cargo_list); _cur_grffile->cargo_max = numinfo; _cur_grffile->cargo_list = MallocT(numinfo); int i; FOR_EACH_OBJECT { CargoLabel cl = grf_load_dword(&buf); _cur_grffile->cargo_list[i] = BSWAP32(cl); } break; } break; } } } #undef FOR_EACH_OBJECT /** * Creates a spritegroup representing a callback result * @param value The value that was used to represent this callback result * @return A spritegroup representing that callback result */ static const SpriteGroup* NewCallBackResultSpriteGroup(uint16 value) { SpriteGroup *group = AllocateSpriteGroup(); group->type = SGT_CALLBACK; // Old style callback results have the highest byte 0xFF so signify it is a callback result // New style ones only have the highest bit set (allows 15-bit results, instead of just 8) if ((value >> 8) == 0xFF) { value &= ~0xFF00; } else { value &= ~0x8000; } group->g.callback.result = value; return group; } /** * Creates a spritegroup representing a sprite number result. * @param value The sprite number. * @param sprites The number of sprites per set. * @return A spritegroup representing the sprite number result. */ static const SpriteGroup* NewResultSpriteGroup(SpriteID sprite, byte num_sprites) { SpriteGroup *group = AllocateSpriteGroup(); group->type = SGT_RESULT; group->g.result.sprite = sprite; group->g.result.num_sprites = num_sprites; return group; } /* Action 0x01 */ static void NewSpriteSet(byte *buf, int len) { /* <01> * * B feature feature to define sprites for * 0, 1, 2, 3: veh-type, 4: train stations * B num-sets number of sprite sets * E num-ent how many entries per sprite set * For vehicles, this is the number of different * vehicle directions in each sprite set * Set num-dirs=8, unless your sprites are symmetric. * In that case, use num-dirs=4. */ if (!check_length(len, 4, "NewSpriteSet")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 num_sets = grf_load_byte(&buf); uint16 num_ents = grf_load_extended(&buf); _cur_grffile->spriteset_start = _cur_spriteid; _cur_grffile->spriteset_feature = feature; _cur_grffile->spriteset_numsets = num_sets; _cur_grffile->spriteset_numents = num_ents; grfmsg(7, "New sprite set at %d of type %d, consisting of %d sets with %d views each (total %d)", _cur_spriteid, feature, num_sets, num_ents, num_sets * num_ents ); for (uint16 i = 0; i < num_sets * num_ents; i++) { LoadNextSprite(_cur_spriteid++, _file_index); _nfo_line++; } } /* Helper function to either create a callback or link to a previously * defined spritegroup. */ static const SpriteGroup* GetGroupFromGroupID(byte setid, byte type, uint16 groupid) { if (HASBIT(groupid, 15)) return NewCallBackResultSpriteGroup(groupid); if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Groupid 0x%04X does not exist, leaving empty", setid, type, groupid); return NULL; } return _cur_grffile->spritegroups[groupid]; } /* Helper function to either create a callback or a result sprite group. */ static const SpriteGroup* CreateGroupFromGroupID(byte feature, byte setid, byte type, uint16 spriteid, uint16 num_sprites) { if (HASBIT(spriteid, 15)) return NewCallBackResultSpriteGroup(spriteid); if (spriteid >= _cur_grffile->spriteset_numsets) { grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Sprite set %u invalid, max %u", setid, type, spriteid, _cur_grffile->spriteset_numsets); return NULL; } /* Check if the sprite is within range. This can fail if the Action 0x01 * is skipped, as TTDPatch mandates that Action 0x02s must be processed. * We don't have that rule, but must live by the Patch... */ if (_cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites > _cur_spriteid) { grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Real Sprite IDs 0x%04X - 0x%04X do not (all) exist (max 0x%04X), leaving empty", setid, type, _cur_grffile->spriteset_start + spriteid * num_sprites, _cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites - 1, _cur_spriteid - 1); return NULL; } if (feature != _cur_grffile->spriteset_feature) { grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Sprite set feature 0x%02X does not match action feature 0x%02X, skipping", _cur_grffile->spriteset_feature, feature); return NULL; } return NewResultSpriteGroup(_cur_grffile->spriteset_start + spriteid * num_sprites, num_sprites); } /* Action 0x02 */ static void NewSpriteGroup(byte *buf, int len) { /* <02> * * B feature see action 1 * B set-id ID of this particular definition * B type/num-entries * if 80 or greater, this is a randomized or variational * list definition, see below * otherwise it specifies a number of entries, the exact * meaning depends on the feature * V feature-specific-data (huge mess, don't even look it up --pasky) */ SpriteGroup *group = NULL; byte *bufend = buf + len; if (!check_length(len, 5, "NewSpriteGroup")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 setid = grf_load_byte(&buf); uint8 type = grf_load_byte(&buf); if (setid >= _cur_grffile->spritegroups_count) { // Allocate memory for new sprite group references. _cur_grffile->spritegroups = ReallocT(_cur_grffile->spritegroups, setid + 1); // Initialise new space to NULL for (; _cur_grffile->spritegroups_count < (setid + 1); _cur_grffile->spritegroups_count++) _cur_grffile->spritegroups[_cur_grffile->spritegroups_count] = NULL; } switch (type) { /* Deterministic Sprite Group */ case 0x81: // Self scope, byte case 0x82: // Parent scope, byte case 0x85: // Self scope, word case 0x86: // Parent scope, word case 0x89: // Self scope, dword case 0x8A: // Parent scope, dword { byte varadjust; byte varsize; /* Check we can load the var size parameter */ if (!check_length(bufend - buf, 1, "NewSpriteGroup (Deterministic) (1)")) return; group = AllocateSpriteGroup(); group->type = SGT_DETERMINISTIC; group->g.determ.var_scope = HASBIT(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF; switch (GB(type, 2, 2)) { default: NOT_REACHED(); case 0: group->g.determ.size = DSG_SIZE_BYTE; varsize = 1; break; case 1: group->g.determ.size = DSG_SIZE_WORD; varsize = 2; break; case 2: group->g.determ.size = DSG_SIZE_DWORD; varsize = 4; break; } if (!check_length(bufend - buf, 5 + varsize, "NewSpriteGroup (Deterministic) (2)")) return; /* Loop through the var adjusts. Unfortunately we don't know how many we have * from the outset, so we shall have to keep reallocing. */ do { DeterministicSpriteGroupAdjust *adjust; if (group->g.determ.num_adjusts > 0) { if (!check_length(bufend - buf, 2 + varsize + 3, "NewSpriteGroup (Deterministic) (3)")) return; } group->g.determ.num_adjusts++; group->g.determ.adjusts = ReallocT(group->g.determ.adjusts, group->g.determ.num_adjusts); adjust = &group->g.determ.adjusts[group->g.determ.num_adjusts - 1]; /* The first var adjust doesn't have an operation specified, so we set it to add. */ adjust->operation = group->g.determ.num_adjusts == 1 ? DSGA_OP_ADD : (DeterministicSpriteGroupAdjustOperation)grf_load_byte(&buf); adjust->variable = grf_load_byte(&buf); if (adjust->variable == 0x7E) { /* Link subroutine group */ adjust->subroutine = GetGroupFromGroupID(setid, type, grf_load_byte(&buf)); } else { adjust->parameter = IS_BYTE_INSIDE(adjust->variable, 0x60, 0x80) ? grf_load_byte(&buf) : 0; } varadjust = grf_load_byte(&buf); adjust->shift_num = GB(varadjust, 0, 5); adjust->type = (DeterministicSpriteGroupAdjustType)GB(varadjust, 6, 2); adjust->and_mask = grf_load_var(varsize, &buf); if (adjust->type != DSGA_TYPE_NONE) { adjust->add_val = grf_load_var(varsize, &buf); adjust->divmod_val = grf_load_var(varsize, &buf); } else { adjust->add_val = 0; adjust->divmod_val = 0; } /* Continue reading var adjusts while bit 5 is set. */ } while (HASBIT(varadjust, 5)); group->g.determ.num_ranges = grf_load_byte(&buf); group->g.determ.ranges = CallocT(group->g.determ.num_ranges); if (!check_length(bufend - buf, 2 + (2 + 2 * varsize) * group->g.determ.num_ranges, "NewSpriteGroup (Deterministic)")) return; for (uint i = 0; i < group->g.determ.num_ranges; i++) { group->g.determ.ranges[i].group = GetGroupFromGroupID(setid, type, grf_load_word(&buf)); group->g.determ.ranges[i].low = grf_load_var(varsize, &buf); group->g.determ.ranges[i].high = grf_load_var(varsize, &buf); } group->g.determ.default_group = GetGroupFromGroupID(setid, type, grf_load_word(&buf)); break; } /* Randomized Sprite Group */ case 0x80: // Self scope case 0x83: // Parent scope { if (!check_length(bufend - buf, 7, "NewSpriteGroup (Randomized) (1)")) return; group = AllocateSpriteGroup(); group->type = SGT_RANDOMIZED; group->g.random.var_scope = HASBIT(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF; uint8 triggers = grf_load_byte(&buf); group->g.random.triggers = GB(triggers, 0, 7); group->g.random.cmp_mode = HASBIT(triggers, 7) ? RSG_CMP_ALL : RSG_CMP_ANY; group->g.random.lowest_randbit = grf_load_byte(&buf); group->g.random.num_groups = grf_load_byte(&buf); group->g.random.groups = CallocT(group->g.random.num_groups); if (!check_length(bufend - buf, 2 * group->g.random.num_groups, "NewSpriteGroup (Randomized) (2)")) return; for (uint i = 0; i < group->g.random.num_groups; i++) { group->g.random.groups[i] = GetGroupFromGroupID(setid, type, grf_load_word(&buf)); } break; } /* Neither a variable or randomized sprite group... must be a real group */ default: { switch (feature) { case GSF_TRAIN: case GSF_ROAD: case GSF_SHIP: case GSF_AIRCRAFT: case GSF_STATION: { byte sprites = _cur_grffile->spriteset_numents; byte num_loaded = type; byte num_loading = grf_load_byte(&buf); if (_cur_grffile->spriteset_start == 0) { grfmsg(0, "NewSpriteGroup: No sprite set to work on! Skipping"); return; } if (!check_length(bufend - buf, 2 * num_loaded + 2 * num_loading, "NewSpriteGroup (Real) (1)")) return; group = AllocateSpriteGroup(); group->type = SGT_REAL; group->g.real.num_loaded = num_loaded; group->g.real.num_loading = num_loading; if (num_loaded > 0) group->g.real.loaded = CallocT(num_loaded); if (num_loading > 0) group->g.real.loading = CallocT(num_loading); grfmsg(6, "NewSpriteGroup: New SpriteGroup 0x%02X, %u views, %u loaded, %u loading", setid, sprites, num_loaded, num_loading); for (uint i = 0; i < num_loaded; i++) { uint16 spriteid = grf_load_word(&buf); group->g.real.loaded[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites); grfmsg(8, "NewSpriteGroup: + rg->loaded[%i] = subset %u", i, spriteid); } for (uint i = 0; i < num_loading; i++) { uint16 spriteid = grf_load_word(&buf); group->g.real.loading[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites); grfmsg(8, "NewSpriteGroup: + rg->loading[%i] = subset %u", i, spriteid); } break; } case GSF_TOWNHOUSE: { byte sprites = _cur_grffile->spriteset_numents; byte num_sprites = max((uint8)1, type); uint i; group = AllocateSpriteGroup(); group->type = SGT_TILELAYOUT; group->g.layout.num_sprites = sprites; group->g.layout.dts = CallocT(1); /* Groundsprite */ group->g.layout.dts->ground_sprite = grf_load_word(&buf); group->g.layout.dts->ground_pal = grf_load_word(&buf); /* Remap transparent/colour modifier bits */ if (HASBIT(group->g.layout.dts->ground_sprite, 14)) { CLRBIT(group->g.layout.dts->ground_sprite, 14); SETBIT(group->g.layout.dts->ground_sprite, PALETTE_MODIFIER_TRANSPARENT); } if (HASBIT(group->g.layout.dts->ground_sprite, 15)) { CLRBIT(group->g.layout.dts->ground_sprite, 15); SETBIT(group->g.layout.dts->ground_sprite, PALETTE_MODIFIER_COLOR); } if (HASBIT(group->g.layout.dts->ground_pal, 14)) { CLRBIT(group->g.layout.dts->ground_pal, 14); SETBIT(group->g.layout.dts->ground_sprite, SPRITE_MODIFIER_OPAQUE); } if (HASBIT(group->g.layout.dts->ground_pal, 15)) { /* Bit 31 set means this is a custom sprite, so rewrite it to the * last spriteset defined. */ SpriteID sprite = _cur_grffile->spriteset_start + GB(group->g.layout.dts->ground_sprite, 0, 14) * sprites; SB(group->g.layout.dts->ground_sprite, 0, SPRITE_WIDTH, sprite); CLRBIT(group->g.layout.dts->ground_pal, 15); } group->g.layout.dts->seq = CallocT(num_sprites + 1); for (i = 0; i < num_sprites; i++) { DrawTileSeqStruct *seq = (DrawTileSeqStruct*)&group->g.layout.dts->seq[i]; seq->image = grf_load_word(&buf); seq->pal = grf_load_word(&buf); seq->delta_x = grf_load_byte(&buf); seq->delta_y = grf_load_byte(&buf); if (HASBIT(seq->image, 14)) { CLRBIT(seq->image, 14); SETBIT(seq->image, PALETTE_MODIFIER_TRANSPARENT); } if (HASBIT(seq->image, 15)) { CLRBIT(seq->image, 15); SETBIT(seq->image, PALETTE_MODIFIER_COLOR); } if (HASBIT(seq->pal, 14)) { CLRBIT(seq->pal, 14); SETBIT(seq->image, SPRITE_MODIFIER_OPAQUE); } if (HASBIT(seq->pal, 15)) { /* Bit 31 set means this is a custom sprite, so rewrite it to the * last spriteset defined. */ SpriteID sprite = _cur_grffile->spriteset_start + GB(seq->image, 0, 14) * sprites; SB(seq->image, 0, SPRITE_WIDTH, sprite); CLRBIT(seq->pal, 15); } if (type > 0) { seq->delta_z = grf_load_byte(&buf); if ((byte)seq->delta_z == 0x80) continue; } seq->size_x = grf_load_byte(&buf); seq->size_y = grf_load_byte(&buf); seq->size_z = grf_load_byte(&buf); } /* Set the terminator value. */ ((DrawTileSeqStruct*)group->g.layout.dts->seq)[i].delta_x = (byte)0x80; break; } /* Loading of Tile Layout and Production Callback groups would happen here */ default: grfmsg(1, "NewSpriteGroup: Unsupported feature %d, skipping", feature); } } } _cur_grffile->spritegroups[setid] = group; } static CargoID TranslateCargo(uint8 feature, uint8 ctype) { /* Special cargo types for purchase list and stations */ if (feature == GSF_STATION && ctype == 0xFE) return CT_DEFAULT_NA; if (ctype == 0xFF) return CT_PURCHASE; /* Check if the cargo type is out of bounds of the cargo translation table */ if (ctype >= (_cur_grffile->cargo_max == 0 ? _default_cargo_max : _cur_grffile->cargo_max)) { grfmsg(1, "FeatureMapSpriteGroup: Cargo type %d out of range (max %d), skipping.", ctype, (_cur_grffile->cargo_max == 0 ? _default_cargo_max : _cur_grffile->cargo_max) - 1); return CT_INVALID; } /* Look up the cargo label from the translation table */ CargoLabel cl = _cur_grffile->cargo_max == 0 ? _default_cargo_list[ctype] : _cur_grffile->cargo_list[ctype]; if (cl == 0) { grfmsg(5, "FeatureMapSpriteGroup: Cargo type %d not available in this climate, skipping.", ctype); return CT_INVALID; } ctype = GetCargoIDByLabel(cl); if (ctype == CT_INVALID) { grfmsg(5, "FeatureMapSpriteGroup: Cargo '%c%c%c%c' unsupported, skipping.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8)); return CT_INVALID; } grfmsg(6, "FeatureMapSpriteGroup: Cargo '%c%c%c%c' mapped to cargo type %d.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8), ctype); return ctype; } /* Action 0x03 */ static void FeatureMapSpriteGroup(byte *buf, int len) { /* <03> ... [ ]... * id-list := [] [id-list] * cargo-list := [cargo-list] * * B feature see action 0 * B n-id bits 0-6: how many IDs this definition applies to * bit 7: if set, this is a wagon override definition (see below) * B ids the IDs for which this definition applies * B num-cid number of cargo IDs (sprite group IDs) in this definition * can be zero, in that case the def-cid is used always * B cargo-type type of this cargo type (e.g. mail=2, wood=7, see below) * W cid cargo ID (sprite group ID) for this type of cargo * W def-cid default cargo ID (sprite group ID) */ /* TODO: Bridges, town houses. */ /* TODO: Multiple cargo support could be useful even for trains/cars - * cargo id 0xff is used for showing images in the build train list. */ static byte *last_engines; static int last_engines_count; if (!check_length(len, 6, "FeatureMapSpriteGroup")) return; uint8 feature = buf[1]; uint8 idcount = buf[2] & 0x7F; bool wagover = (buf[2] & 0x80) == 0x80; if (!check_length(len, 3 + idcount, "FeatureMapSpriteGroup")) return; /* If idcount is zero, this is a feature callback */ if (idcount == 0) { grfmsg(2, "FeatureMapSpriteGroup: Feature callbacks not implemented yet"); return; } uint8 cidcount = buf[3 + idcount]; if (!check_length(len, 4 + idcount + cidcount * 3, "FeatureMapSpriteGroup")) return; grfmsg(6, "FeatureMapSpriteGroup: Feature %d, %d ids, %d cids, wagon override %d", feature, idcount, cidcount, wagover); if (feature > GSF_STATION && feature != GSF_TOWNHOUSE) { grfmsg(1, "FeatureMapSpriteGroup: Unsupported feature %d, skipping", feature); return; } if (feature == GSF_STATION) { // We do things differently for stations. for (uint i = 0; i < idcount; i++) { uint8 stid = buf[3 + i]; StationSpec *statspec = _cur_grffile->stations[stid]; byte *bp = &buf[4 + idcount]; for (uint c = 0; c < cidcount; c++) { uint8 ctype = grf_load_byte(&bp); uint16 groupid = grf_load_word(&bp); if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count); return; } ctype = TranslateCargo(feature, ctype); if (ctype == CT_INVALID) continue; statspec->spritegroup[ctype] = _cur_grffile->spritegroups[groupid]; } } { byte *bp = buf + 4 + idcount + cidcount * 3; uint16 groupid = grf_load_word(&bp); if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count); return; } for (uint i = 0; i < idcount; i++) { uint8 stid = buf[3 + i]; StationSpec *statspec = _cur_grffile->stations[stid]; statspec->spritegroup[CT_DEFAULT] = _cur_grffile->spritegroups[groupid]; statspec->grfid = _cur_grffile->grfid; statspec->localidx = stid; SetCustomStationSpec(statspec); } } return; } else if (feature == GSF_TOWNHOUSE) { byte *bp = &buf[4 + idcount + cidcount * 3]; uint16 groupid = grf_load_word(&bp); if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping.", groupid, _cur_grffile->spritegroups_count); return; } for (uint i = 0; i < idcount; i++) { uint8 hid = buf[3 + i]; HouseSpec *hs = _cur_grffile->housespec[hid]; if (hs == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Too many houses defined, skipping"); return; } hs->spritegroup = _cur_grffile->spritegroups[groupid]; } return; } // FIXME: Tropicset contains things like: // 03 00 01 19 01 00 00 00 00 - this is missing one 00 at the end, // what should we exactly do with that? --pasky if (_cur_grffile->spriteset_start == 0 || _cur_grffile->spritegroups == 0) { grfmsg(1, "FeatureMapSpriteGroup: No sprite set to work on! Skipping"); return; } if (!wagover && last_engines_count != idcount) { last_engines = ReallocT(last_engines, idcount); last_engines_count = idcount; } if (wagover) { if (last_engines_count == 0) { grfmsg(0, "FeatureMapSpriteGroup: WagonOverride: No engine to do override with"); return; } grfmsg(6, "FeatureMapSpriteGroup: WagonOverride: %u engines, %u wagons", last_engines_count, idcount); } for (uint i = 0; i < idcount; i++) { uint8 engine_id = buf[3 + i]; uint8 engine = engine_id + _vehshifts[feature]; byte *bp = &buf[4 + idcount]; if (engine_id > _vehcounts[feature]) { grfmsg(0, "Id %u for feature 0x%02X is out of bounds", engine_id, feature); return; } grfmsg(7, "FeatureMapSpriteGroup: [%d] Engine %d...", i, engine); for (uint c = 0; c < cidcount; c++) { uint8 ctype = grf_load_byte(&bp); uint16 groupid = grf_load_word(&bp); grfmsg(8, "FeatureMapSpriteGroup: * [%d] Cargo type 0x%X, group id 0x%02X", c, ctype, groupid); if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count); return; } ctype = TranslateCargo(feature, ctype); if (ctype == CT_INVALID) continue; if (wagover) { SetWagonOverrideSprites(engine, ctype, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count); } else { SetCustomEngineSprites(engine, ctype, _cur_grffile->spritegroups[groupid]); last_engines[i] = engine; } } } { byte *bp = buf + 4 + idcount + cidcount * 3; uint16 groupid = grf_load_word(&bp); grfmsg(8, "-- Default group id 0x%04X", groupid); for (uint i = 0; i < idcount; i++) { uint8 engine = buf[3 + i] + _vehshifts[feature]; // Don't tell me you don't love duplicated code! if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) { grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count); return; } if (wagover) { /* If the ID for this action 3 is the same as the vehicle ID, * this indicates we have a helicopter rotor override. */ if (feature == GSF_AIRCRAFT && engine == last_engines[i]) { SetRotorOverrideSprites(engine, _cur_grffile->spritegroups[groupid]); } else { // TODO: No multiple cargo types per vehicle yet. --pasky SetWagonOverrideSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count); } } else { SetCustomEngineSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid]); SetEngineGRF(engine, _cur_grffile); last_engines[i] = engine; } } } } /* Action 0x04 */ static void FeatureNewName(byte *buf, int len) { /* <04> * * B veh-type see action 0 (as 00..07, + 0A * But IF veh-type = 48, then generic text * B language-id If bit 6 is set, This is the extended language scheme, with up to 64 language. Otherwise, it is a mapping where set bits have meaning 0 = american, 1 = english, 2 = german, 3 = french, 4 = spanish Bit 7 set means this is a generic text, not a vehicle one (or else) * B num-veh number of vehicles which are getting a new name * B/W offset number of the first vehicle that gets a new name * Byte : ID of vehicle to change * Word : ID of string to change/add * S data new texts, each of them zero-terminated, after * which the next name begins. */ bool new_scheme = _cur_grffile->grf_version >= 7; if (!check_length(len, 6, "FeatureNewName")) return; buf++; uint8 feature = grf_load_byte(&buf); uint8 lang = grf_load_byte(&buf); uint8 num = grf_load_byte(&buf); bool generic = HASBIT(lang, 7); uint16 id = generic ? grf_load_word(&buf) : grf_load_byte(&buf); CLRBIT(lang, 7); if (feature <= GSF_AIRCRAFT && id < _vehcounts[feature]) { id += _vehshifts[feature]; } uint16 endid = id + num; grfmsg(6, "FeatureNewName: About to rename engines %d..%d (feature %d) in language 0x%02X", id, endid, feature, lang); len -= generic ? 6 : 5; for (; id < endid && len > 0; id++) { const char *name = grf_load_string(&buf, len); size_t name_length = strlen(name) + 1; len -= (int)name_length; if (name_length == 1) { grfmsg(7, "FeatureNewName: Can't add empty name"); } else if (name_length > 127) { grfmsg(7, "FeatureNewName: Too long a name (%d)", name_length); } else { grfmsg(8, "FeatureNewName: %d <- %s", id, name); switch (feature) { case GSF_TRAIN: case GSF_ROAD: case GSF_SHIP: case GSF_AIRCRAFT: { if (id < TOTAL_NUM_ENGINES) { StringID string = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_8000_KIRBY_PAUL_TANK_STEAM + id); SetCustomEngineName(id, string); } else { AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, id); } break; } case GSF_TOWNHOUSE: default: switch (GB(id, 8, 8)) { case 0xC4: /* Station class name */ if (_cur_grffile->stations == NULL || _cur_grffile->stations[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8)); } else { StationClassID sclass = _cur_grffile->stations[GB(id, 0, 8)]->sclass; SetStationClassName(sclass, AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED)); } break; case 0xC5: /* Station name */ if (_cur_grffile->stations == NULL || _cur_grffile->stations[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8)); } else { _cur_grffile->stations[GB(id, 0, 8)]->name = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED); } break; case 0xC9: { /* House name */ if (_cur_grffile->housespec == NULL || _cur_grffile->housespec[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined house 0x%X, ignoring.", GB(id, 0, 8)); } else { _cur_grffile->housespec[GB(id, 0, 8)]->building_name = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED); } break; } case 0xD0: case 0xDC: AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED); break; default: grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id); break; } break; #if 0 case GSF_CANAL : case GSF_BRIDGE : AddGRFString(_cur_spriteid, id, lang, name); switch (GB(id, 8,8)) { case 0xC9: /* House name */ default: grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id); } break; case GSF_INDUSTRIES : case 0x48 : /* for generic strings */ AddGRFString(_cur_spriteid, id, lang, name); break; default : grfmsg(7, "FeatureNewName: Unsupported feature (0x%02X)", feature); break; #endif } } } } /* Action 0x05 */ static void GraphicsNew(byte *buf, int len) { /* <05> * * B graphics-type What set of graphics the sprites define. * E num-sprites How many sprites are in this set? * V other data Graphics type specific data. Currently unused. */ /* TODO */ SpriteID replace = 0; if (!check_length(len, 2, "GraphicsNew")) return; buf++; uint8 type = grf_load_byte(&buf); uint16 num = grf_load_extended(&buf); switch (type) { case 0x04: /* Signal graphics */ if (num != 112 && num != 240) { grfmsg(1, "GraphicsNews: Signal graphics sprite count must be 112 or 240, skipping"); return; } _signal_base = _cur_spriteid; break; case 0x05: /* Catenary graphics */ if (num != 48) { grfmsg(1, "GraphicsNews: Catenary graphics sprite count must be 48, skipping"); return; } replace = SPR_ELRAIL_BASE + 3; break; case 0x06: /* Foundations */ if (num != 74) { grfmsg(1, "GraphicsNews: Foundation graphics sprite count must be 74, skipping"); return; } replace = SPR_SLOPES_BASE; break; case 0x08: /* Canal graphics */ if (num != 65) { grfmsg(1, "GraphicsNews: Canal graphics sprite count must be 65, skipping"); return; } replace = SPR_CANALS_BASE + 5; break; case 0x0D: /* Coast graphics */ if (num != 16) { grfmsg(1, "GraphicsNews: Coast graphics sprite count must be 16, skipping"); return; } _coast_base = _cur_spriteid; break; default: grfmsg(2, "GraphicsNew: Custom graphics (type 0x%02X) sprite block of length %u (unimplemented, ignoring)", type, num); return; } if (replace == 0) { grfmsg(2, "GraphicsNew: Loading %u sprites of type 0x%02X at SpriteID 0x%04X", num, type, _cur_spriteid); } else { grfmsg(2, "GraphicsNew: Replacing %u sprites of type 0x%02X at SpriteID 0x%04X", num, type, replace); } for (; num > 0; num--) { LoadNextSprite(replace == 0 ? _cur_spriteid++ : replace++, _file_index); _nfo_line++; } } static uint32 GetParamVal(byte param, uint32 *cond_val) { switch (param) { case 0x81: /* current year */ return clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR; case 0x83: /* current climate, 0=temp, 1=arctic, 2=trop, 3=toyland */ return _opt.landscape; case 0x84: /* GRF loading stage */ return (_cur_stage > GLS_INIT) | ((_cur_stage == GLS_ACTIVATION) << 9); case 0x85: /* TTDPatch flags, only for bit tests */ if (cond_val == NULL) { /* Supported in Action 0x07 and 0x09, not 0x0D */ return 0; } else { uint32 param_val = _ttdpatch_flags[*cond_val / 0x20]; *cond_val %= 0x20; return param_val; } case 0x86: /* road traffic side, bit 4 clear=left, set=right */ return _opt.road_side << 4; case 0x88: /* GRF ID check */ return 0; case 0x8B: { /* TTDPatch version */ uint major = 2; uint minor = 6; uint revision = 0; // special case: 2.0.1 is 2.0.10 uint build = 1168; return (major << 24) | (minor << 20) | (revision << 16) | build; } case 0x8D: /* TTD Version, 00=DOS, 01=Windows */ return !_use_dos_palette; case 0x8E: /* Y-offset for train sprites */ return _traininfo_vehicle_pitch; case 0x92: /* Game mode */ return _game_mode; case 0x9A: /* Always -1 */ return UINT_MAX; case 0x9D: /* TTD Platform, 00=TTDPatch, 01=OpenTTD */ return 1; case 0x9E: /* Miscellaneous GRF features */ return _misc_grf_features; default: /* GRF Parameter */ if (param < 0x80) return _cur_grffile->param[param]; /* In-game variable. */ grfmsg(1, "Unsupported in-game variable 0x%02X", param); return UINT_MAX; } } /* Action 0x06 */ static void CfgApply(byte *buf, int len) { /* <06> ... * * B param-num Number of parameter to substitute (First = "zero") * Ignored if that parameter was not specified in newgrf.cfg * B param-size How many bytes to replace. If larger than 4, the * bytes of the following parameter are used. In that * case, nothing is applied unless *all* parameters * were specified. * B offset Offset into data from beginning of next sprite * to place where parameter is to be stored. */ /* Preload the next sprite */ uint32 pos = FioGetPos(); uint16 num = FioReadWord(); uint8 type = FioReadByte(); /* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */ if (type == 0xFF) { _preload_sprite = MallocT(num); FioReadBlock(_preload_sprite, num); } /* Reset the file position to the start of the next sprite */ FioSeekTo(pos, SEEK_SET); if (type != 0xFF) { grfmsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)"); return; } /* Now perform the Action 0x06 on our data. */ buf++; for (;;) { uint i; uint param_num; uint param_size; uint offset; bool add_value; /* Read the parameter to apply. 0xFF indicates no more data to change. */ param_num = grf_load_byte(&buf); if (param_num == 0xFF) break; /* Get the size of the parameter to use. If the size covers multiple * double words, sequential parameter values are used. */ param_size = grf_load_byte(&buf); /* Bit 7 of param_size indicates we should add to the original value * instead of replacing it. */ add_value = HASBIT(param_size, 7); param_size = GB(param_size, 0, 7); /* Where to apply the data to within the pseudo sprite data. */ offset = grf_load_extended(&buf); /* If the parameter is a GRF parameter (not an internal variable) check * if it (and all further sequential parameters) has been defined. */ if (param_num < 0x80 && (param_num + (param_size - 1) / 4) >= _cur_grffile->param_end) { grfmsg(2, "CfgApply: Ignoring (param %d not set)", (param_num + (param_size - 1) / 4)); break; } grfmsg(8, "CfgApply: Applying %u bytes from parameter 0x%02X at offset 0x%04X", param_size, param_num, offset); for (i = 0; i < param_size; i++) { uint32 value = GetParamVal(param_num + i / 4, NULL); if (add_value) { _preload_sprite[offset + i] += GB(value, (i % 4) * 8, 8); } else { _preload_sprite[offset + i] = GB(value, (i % 4) * 8, 8); } } } } /* Action 0x07 */ /* Action 0x09 */ static void SkipIf(byte *buf, int len) { /* <07/09> * * B param-num * B param-size * B condition-type * V value * B num-sprites */ /* TODO: More params. More condition types. */ uint32 cond_val = 0; uint32 mask = 0; bool result; if (!check_length(len, 6, "SkipIf")) return; buf++; uint8 param = grf_load_byte(&buf); uint8 paramsize = grf_load_byte(&buf); uint8 condtype = grf_load_byte(&buf); if (condtype < 2) { /* Always 1 for bit tests, the given value should be ignored. */ paramsize = 1; } switch (paramsize) { case 4: cond_val = grf_load_dword(&buf); mask = 0xFFFFFFFF; break; case 2: cond_val = grf_load_word(&buf); mask = 0x0000FFFF; break; case 1: cond_val = grf_load_byte(&buf); mask = 0x000000FF; break; default: break; } if (param < 0x80 && _cur_grffile->param_end <= param) { grfmsg(7, "Param %d undefined, skipping test", param); return; } uint32 param_val = GetParamVal(param, &cond_val); grfmsg(7, "Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val); if (param == 0x88) { /* GRF ID checks */ const GRFConfig *c = GetGRFConfig(cond_val); if (condtype != 10 && c == NULL) { grfmsg(7, "GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val)); return; } switch (condtype) { /* Tests 6 to 10 are only for param 0x88, GRFID checks */ case 6: /* Is GRFID active? */ result = c->status == GCS_ACTIVATED; break; case 7: /* Is GRFID non-active? */ result = c->status != GCS_ACTIVATED; break; case 8: /* GRFID is not but will be active? */ result = c->status == GCS_INITIALISED; break; case 9: /* GRFID is or will be active? */ result = c->status == GCS_ACTIVATED || c->status == GCS_INITIALISED; break; case 10: /* GRFID is not nor will be active */ /* This is the only condtype that doesn't get ignored if the GRFID is not found */ result = c == NULL || c->flags == GCS_DISABLED || c->status == GCS_NOT_FOUND; break; default: grfmsg(1, "Unsupported GRF test %d. Ignoring", condtype); return; } } else { /* Parameter or variable tests */ switch (condtype) { case 0: result = !!(param_val & (1 << cond_val)); break; case 1: result = !(param_val & (1 << cond_val)); break; case 2: result = (param_val & mask) == cond_val; break; case 3: result = (param_val & mask) != cond_val; break; case 4: result = (param_val & mask) < cond_val; break; case 5: result = (param_val & mask) > cond_val; break; default: grfmsg(1, "Unsupported test %d. Ignoring", condtype); return; } } if (!result) { grfmsg(2, "Not skipping sprites, test was false"); return; } uint8 numsprites = grf_load_byte(&buf); /* numsprites can be a GOTO label if it has been defined in the GRF * file. The jump will always be the first matching label that follows * the current nfo_line. If no matching label is found, the first matching * label in the file is used. */ GRFLabel *choice = NULL; for (GRFLabel *label = _cur_grffile->label; label != NULL; label = label->next) { if (label->label != numsprites) continue; /* Remember a goto before the current line */ if (choice == NULL) choice = label; /* If we find a label here, this is definitely good */ if (label->nfo_line > _nfo_line) { choice = label; break; } } if (choice != NULL) { grfmsg(2, "Jumping to label 0x%0X at line %d, test was true", choice->label, choice->nfo_line); FioSeekTo(choice->pos, SEEK_SET); _nfo_line = choice->nfo_line; return; } grfmsg(2, "Skipping %d sprites, test was true", numsprites); _skip_sprites = numsprites; if (_skip_sprites == 0) { /* Zero means there are no sprites to skip, so * we use -1 to indicate that all further * sprites should be skipped. */ _skip_sprites = -1; /* If an action 8 hasn't been encountered yet, disable the grf. */ if (_cur_grfconfig->status != GCS_ACTIVATED) _cur_grfconfig->status = GCS_DISABLED; } } /* Action 0x08 (GLS_FILESCAN) */ static void ScanInfo(byte *buf, int len) { if (!check_length(len, 8, "Info")) return; buf++; grf_load_byte(&buf); uint32 grfid = grf_load_dword(&buf); _cur_grfconfig->grfid = grfid; /* GRF IDs starting with 0xFF are reserved for internal TTDPatch use */ if (GB(grfid, 24, 8) == 0xFF) SETBIT(_cur_grfconfig->flags, GCF_SYSTEM); len -= 6; const char *name = grf_load_string(&buf, len); _cur_grfconfig->name = TranslateTTDPatchCodes(name); len -= strlen(name) + 1; if (len > 0) { const char *info = grf_load_string(&buf, len); _cur_grfconfig->info = TranslateTTDPatchCodes(info); } /* GLS_INFOSCAN only looks for the action 8, so we can skip the rest of the file */ _skip_sprites = -1; } /* Action 0x08 */ static void GRFInfo(byte *buf, int len) { /* <08> * * B version newgrf version, currently 06 * 4*B grf-id globally unique ID of this .grf file * S name name of this .grf set * S info string describing the set, and e.g. author and copyright */ if (!check_length(len, 8, "GRFInfo")) return; buf++; uint8 version = grf_load_byte(&buf); uint32 grfid = grf_load_dword(&buf); const char *name = grf_load_string(&buf, len - 6); _cur_grffile->grfid = grfid; _cur_grffile->grf_version = version; _cur_grfconfig->status = _cur_stage < GLS_ACTIVATION ? GCS_INITIALISED : GCS_ACTIVATED; /* Do swap the GRFID for displaying purposes since people expect that */ DEBUG(grf, 1, "Loaded GRFv%d set %08lX - %s", version, BSWAP32(grfid), name); } /* Action 0x0A */ static void SpriteReplace(byte *buf, int len) { /* <0A> [ ...] * : * * B num-sets How many sets of sprites to replace. * Each set: * B num-sprites How many sprites are in this set * W first-sprite First sprite number to replace */ buf++; /* skip action byte */ uint8 num_sets = grf_load_byte(&buf); for (uint i = 0; i < num_sets; i++) { uint8 num_sprites = grf_load_byte(&buf); uint16 first_sprite = grf_load_word(&buf); grfmsg(2, "SpriteReplace: [Set %d] Changing %d sprites, beginning with %d", i, num_sprites, first_sprite ); for (uint j = 0; j < num_sprites; j++) { LoadNextSprite(first_sprite + j, _file_index); // XXX _nfo_line++; } } } /* Action 0x0B */ static void GRFLoadError(byte *buf, int len) { /* <0B> [ 00] [] 00 [] * * B severity 00: notice, contine loading grf file * 01: warning, continue loading grf file * 02: error, but continue loading grf file, and attempt * loading grf again when loading or starting next game * 03: error, abort loading and prevent loading again in * the future (only when restarting the patch) * B language-id see action 4, use 1F for built-in error messages * B message-id message to show, see below * S message for custom messages (message-id FF), text of the message * not present for built-in messages. * V data additional data for built-in (or custom) messages * B parnum parameter numbers to be shown in the message (maximum of 2) */ static const StringID msgstr[] = { STR_NEWGRF_ERROR_VERSION_NUMBER, STR_NEWGRF_ERROR_DOS_OR_WINDOWS, STR_NEWGRF_ERROR_UNSET_SWITCH, STR_NEWGRF_ERROR_INVALID_PARAMETER, STR_NEWGRF_ERROR_LOAD_BEFORE, STR_NEWGRF_ERROR_LOAD_AFTER }; static const StringID sevstr[] = { STR_NEWGRF_ERROR_MSG_INFO, STR_NEWGRF_ERROR_MSG_WARNING, STR_NEWGRF_ERROR_MSG_ERROR, STR_NEWGRF_ERROR_MSG_FATAL }; /* AddGRFString expects the string to be referred to by an id in the newgrf * file. Errors messages are never referred to however, so invent ids that * are unlikely to be reached in a newgrf file so they don't overwrite * anything else. */ enum { MESSAGE_STRING_ID = MAX_UVALUE(StringID) - 1, MESSAGE_DATA_ID = MAX_UVALUE(StringID) }; if (!check_length(len, 6, "GRFLoadError")) return; /* For now we can only show one message per newgrf file. */ if (_cur_grfconfig->error != NULL) return; buf++; /* Skip the action byte. */ byte severity = grf_load_byte(&buf); byte lang = grf_load_byte(&buf); byte message_id = grf_load_byte(&buf); len -= 4; /* Skip the error until the activation stage unless bit 7 of the severity * is set. */ if (!HASBIT(severity, 7) && _cur_stage < GLS_ACTIVATION) { grfmsg(7, "Skipping non-fatal GRFLoadError in stage 1"); return; } CLRBIT(severity, 7); if (severity >= lengthof(sevstr)) { grfmsg(7, "GRFLoadError: Invalid severity id %d. Setting to 2 (non-fatal error).", severity); severity = 2; } else if (severity == 3) { /* This is a fatal error, so make sure the GRF is deactivated and no * more of it gets loaded. */ _cur_grfconfig->status = GCS_DISABLED; _skip_sprites = -1; } if (message_id >= lengthof(msgstr) && message_id != 0xFF) { grfmsg(7, "GRFLoadError: Invalid message id."); return; } if (len <= 1) { grfmsg(7, "GRFLoadError: No message data supplied."); return; } bool new_scheme = _cur_grffile->grf_version >= 7; GRFError *error = CallocT(1); error->severity = sevstr[severity]; if (message_id == 0xFF) { /* This is a custom error message. */ const char *message = grf_load_string(&buf, len); len -= (strlen(message) + 1); error->message = AddGRFString(_cur_grffile->grfid, MESSAGE_STRING_ID, lang, new_scheme, message, STR_UNDEFINED); } else { error->message = msgstr[message_id]; } if (len > 0) { const char *data = grf_load_string(&buf, len); len -= (strlen(data) + 1); error->data = AddGRFString(_cur_grffile->grfid, MESSAGE_DATA_ID, lang, new_scheme, data, STR_UNDEFINED); } /* Only two parameter numbers can be used in the string. */ uint i = 0; for (; i < 2 && len > 0; i++) { error->param_number[i] = grf_load_byte(&buf); len--; } error->num_params = i; _cur_grfconfig->error = error; } /* Action 0x0C */ static void GRFComment(byte *buf, int len) { /* <0C> [] * * V ignored Anything following the 0C is ignored */ if (len == 1) return; int text_len = len - 1; const char *text = (const char*)(buf + 1); grfmsg(2, "GRFComment: %.*s", text_len, text); } /* Action 0x0D (GLS_SAFETYSCAN) */ static void SafeParamSet(byte *buf, int len) { if (!check_length(len, 5, "SafeParamSet")) return; buf++; uint8 target = grf_load_byte(&buf); /* Only writing GRF parameters is considered safe */ if (target < 0x80) return; /* GRM could be unsafe, but as here it can only happen after other GRFs * are loaded, it should be okay. If the GRF tried to use the slots it * reserved, it would be marked unsafe anyway. GRM for (e.g. bridge) * sprites is considered safe. */ SETBIT(_cur_grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _skip_sprites = -1; } /* Action 0x0D */ static void ParamSet(byte *buf, int len) { /* <0D> [] * * B target parameter number where result is stored * B operation operation to perform, see below * B source1 first source operand * B source2 second source operand * D data data to use in the calculation, not necessary * if both source1 and source2 refer to actual parameters * * Operations * 00 Set parameter equal to source1 * 01 Addition, source1 + source2 * 02 Subtraction, source1 - source2 * 03 Unsigned multiplication, source1 * source2 (both unsigned) * 04 Signed multiplication, source1 * source2 (both signed) * 05 Unsigned bit shift, source1 by source2 (source2 taken to be a * signed quantity; left shift if positive and right shift if * negative, source1 is unsigned) * 06 Signed bit shift, source1 by source2 * (source2 like in 05, and source1 as well) */ if (!check_length(len, 5, "ParamSet")) return; buf++; uint8 target = grf_load_byte(&buf); uint8 oper = grf_load_byte(&buf); uint32 src1 = grf_load_byte(&buf); uint32 src2 = grf_load_byte(&buf); uint32 data = 0; if (len >= 8) data = grf_load_dword(&buf); /* You can add 80 to the operation to make it apply only if the target * is not defined yet. In this respect, a parameter is taken to be * defined if any of the following applies: * - it has been set to any value in the newgrf(w).cfg parameter list * - it OR A PARAMETER WITH HIGHER NUMBER has been set to any value by * an earlier action D */ if (HASBIT(oper, 7)) { if (target < 0x80 && target < _cur_grffile->param_end) { grfmsg(7, "Param %u already defined, skipping", target); return; } oper = GB(oper, 0, 7); } if (src2 == 0xFE) { if (GB(data, 0, 8) == 0xFF) { if (data == 0x0000FFFF) { /* Patch variables */ grfmsg(2, "ParamSet: Reading Patch variables unsupported"); return; } else { /* GRF Resource Management */ if (_cur_stage != GLS_ACTIVATION) { /* Ignore GRM during initialization */ src1 = 0; } else { uint8 op = src1; uint8 feature = GB(data, 8, 8); uint16 count = GB(data, 16, 16); switch (feature) { case 0x00: /* Trains */ case 0x01: /* Road Vehicles */ case 0x02: /* Ships */ case 0x03: /* Aircraft */ { uint start = 0; uint size = 0; uint shift = _vehshifts[feature]; if (op == 6) { /* Return GRFID of set that reserved ID */ src1 = _grm_engines[shift + _cur_grffile->param[target]]; break; } /* With an operation of 2 or 3, we want to reserve a specific block of IDs */ if (op == 2 || op == 3) start = _cur_grffile->param[target]; for (uint i = start; i < _vehcounts[feature]; i++) { if (_grm_engines[shift + i] == 0) { size++; } else { if (op == 2 || op == 3) break; start = i + 1; size = 0; } if (size == count) break; } if (size == count) { /* Got the slot... */ if (op == 0 || op == 3) { grfmsg(2, "GRM: Reserving %d vehicles at %d", count, start); for (uint i = 0; i < count; i++) _grm_engines[shift + start + i] = _cur_grffile->grfid; } src1 = start; } else { /* Unable to allocate */ if (op != 4 && op != 5) { /* Deactivate GRF */ grfmsg(0, "GRM: Unable to allocate %d vehicles, deactivating", count); _cur_grfconfig->status = GCS_DISABLED; _skip_sprites = -1; return; } grfmsg(1, "GRM: Unable to allocate %d vehicles", count); src1 = UINT_MAX; } break; } case 0x08: /* General sprites */ switch (op) { case 0: /* Check if the allocated sprites will fit below the original sprite limit */ if (_cur_spriteid + count >= 16384) { grfmsg(0, "GRM: Unable to allocate %d sprites; try changing NewGRF order", count); _cur_grfconfig->status = GCS_DISABLED; _skip_sprites = -1; return; } /* 'Reserve' space at the current sprite ID */ src1 = _cur_spriteid; _cur_spriteid += count; break; case 1: src1 = _cur_spriteid; break; default: grfmsg(1, "GRM: Unsupported operation %d for general sprites", op); return; } break; default: grfmsg(1, "GRM: Unsupported feature 0x%X", feature); return; } } } } else { /* Read another GRF File's parameter */ const GRFFile *file = GetFileByGRFID(data); if (file == NULL || src1 >= file->param_end) { src1 = 0; } else { src1 = file->param[src1]; } } } else { /* The source1 and source2 operands refer to the grf parameter number * like in action 6 and 7. In addition, they can refer to the special * variables available in action 7, or they can be FF to use the value * of . If referring to parameters that are undefined, a value * of 0 is used instead. */ src1 = (src1 == 0xFF) ? data : GetParamVal(src1, NULL); src2 = (src2 == 0xFF) ? data : GetParamVal(src2, NULL); } /* TODO: You can access the parameters of another GRF file by using * source2=FE, source1=the other GRF's parameter number and data=GRF * ID. This is only valid with operation 00 (set). If the GRF ID * cannot be found, a value of 0 is used for the parameter value * instead. */ uint32 res; switch (oper) { case 0x00: res = src1; break; case 0x01: res = src1 + src2; break; case 0x02: res = src1 - src2; break; case 0x03: res = src1 * src2; break; case 0x04: res = (int32)src1 * (int32)src2; break; case 0x05: if ((int32)src2 < 0) { res = src1 >> -(int32)src2; } else { res = src1 << src2; } break; case 0x06: if ((int32)src2 < 0) { res = (int32)src1 >> -(int32)src2; } else { res = (int32)src1 << src2; } break; case 0x07: /* Bitwise AND */ res = src1 & src2; break; case 0x08: /* Bitwise OR */ res = src1 | src2; break; case 0x09: /* Unsigned division */ if (src2 == 0) { res = src1; } else { res = src1 / src2; } break; case 0x0A: /* Signed divison */ if (src2 == 0) { res = src1; } else { res = (int32)src1 / (int32)src2; } break; case 0x0B: /* Unsigned modulo */ if (src2 == 0) { res = src1; } else { res = src1 % src2; } break; case 0x0C: /* Signed modulo */ if (src2 == 0) { res = src1; } else { res = (int32)src1 % (int32)src2; } break; default: grfmsg(0, "ParamSet: Unknown operation %d, skipping", oper); return; } switch (target) { case 0x8E: // Y-Offset for train sprites _traininfo_vehicle_pitch = res; break; // TODO implement case 0x8F: // Rail track type cost factors case 0x93: // Tile refresh offset to left case 0x94: // Tile refresh offset to right case 0x95: // Tile refresh offset upwards case 0x96: // Tile refresh offset downwards case 0x97: // Snow line height case 0x99: // Global ID offset grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target); break; case 0x9E: /* Miscellaneous GRF features */ _misc_grf_features = res; /* Set train list engine width */ _traininfo_vehicle_width = HASBIT(res, 3) ? 32 : 29; break; default: if (target < 0x80) { _cur_grffile->param[target] = res; if (target + 1U > _cur_grffile->param_end) _cur_grffile->param_end = target + 1; } else { grfmsg(7, "ParamSet: Skipping unknown target 0x%02X", target); } break; } } /* Action 0x0E (GLS_SAFETYSCAN) */ static void SafeGRFInhibit(byte *buf, int len) { /* <0E> * * B num Number of GRFIDs that follow * D grfids GRFIDs of the files to deactivate */ if (!check_length(len, 2, "GRFInhibit")) return; buf++; uint8 num = grf_load_byte(&buf); if (!check_length(len, 2 + 4 * num, "GRFInhibit")) return; for (uint i = 0; i < num; i++) { uint32 grfid = grf_load_dword(&buf); /* GRF is unsafe it if tries to deactivate other GRFs */ if (grfid != _cur_grfconfig->grfid) { SETBIT(_cur_grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _skip_sprites = -1; return; } } } /* Action 0x0E */ static void GRFInhibit(byte *buf, int len) { /* <0E> * * B num Number of GRFIDs that follow * D grfids GRFIDs of the files to deactivate */ if (!check_length(len, 2, "GRFInhibit")) return; buf++; uint8 num = grf_load_byte(&buf); if (!check_length(len, 2 + 4 * num, "GRFInhibit")) return; for (uint i = 0; i < num; i++) { uint32 grfid = grf_load_dword(&buf); GRFConfig *file = GetGRFConfig(grfid); /* Unset activation flag */ if (file != NULL && file != _cur_grfconfig) { grfmsg(2, "GRFInhibit: Deactivating file '%s'", file->filename); file->status = GCS_DISABLED; } } } /* Action 0x10 */ static void DefineGotoLabel(byte *buf, int len) { /* <10>