station_sl.cpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "../stdafx.h"
00013 #include "../station_base.h"
00014 #include "../waypoint_base.h"
00015 #include "../roadstop_base.h"
00016 #include "../vehicle_base.h"
00017 #include "../newgrf_station.h"
00018 #include "../newgrf.h"
00019 
00020 #include "saveload.h"
00021 #include "table/strings.h"
00022 
00027 static void UpdateWaypointOrder(Order *o)
00028 {
00029   if (!o->IsType(OT_GOTO_STATION)) return;
00030 
00031   const Station *st = Station::Get(o->GetDestination());
00032   if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) return;
00033 
00034   o->MakeGoToWaypoint(o->GetDestination());
00035 }
00036 
00041 void MoveBuoysToWaypoints()
00042 {
00043   /* Buoy orders become waypoint orders */
00044   OrderList *ol;
00045   FOR_ALL_ORDER_LISTS(ol) {
00046     VehicleType vt = ol->GetFirstSharedVehicle()->type;
00047     if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
00048 
00049     for (Order *o = ol->GetFirstOrder(); o != NULL; o = o->next) UpdateWaypointOrder(o);
00050   }
00051 
00052   Vehicle *v;
00053   FOR_ALL_VEHICLES(v) {
00054     VehicleType vt = v->type;
00055     if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
00056 
00057     UpdateWaypointOrder(&v->current_order);
00058   }
00059 
00060   /* Now make the stations waypoints */
00061   Station *st;
00062   FOR_ALL_STATIONS(st) {
00063     if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) continue;
00064 
00065     StationID index    = st->index;
00066     TileIndex xy       = st->xy;
00067     Town *town         = st->town;
00068     StringID string_id = st->string_id;
00069     char *name         = st->name;
00070     st->name           = NULL;
00071     Date build_date    = st->build_date;
00072     /* TTDPatch could use "buoys with rail station" for rail waypoints */
00073     bool train         = st->train_station.tile != INVALID_TILE;
00074     TileArea train_st  = st->train_station;
00075 
00076     /* Delete the station, so we can make it a real waypoint. */
00077     delete st;
00078 
00079     /* Stations and waypoints are in the same pool, so if a station
00080      * is deleted there must be place for a Waypoint. */
00081     assert(Waypoint::CanAllocateItem());
00082     Waypoint *wp   = new (index) Waypoint(xy);
00083     wp->town       = town;
00084     wp->string_id  = train ? STR_SV_STNAME_WAYPOINT : STR_SV_STNAME_BUOY;
00085     wp->name       = name;
00086     wp->delete_ctr = 0; // Just reset delete counter for once.
00087     wp->build_date = build_date;
00088     wp->owner      = train ? GetTileOwner(xy) : OWNER_NONE;
00089 
00090     if (IsInsideBS(string_id, STR_SV_STNAME_BUOY, 9)) wp->town_cn = string_id - STR_SV_STNAME_BUOY;
00091 
00092     if (train) {
00093       /* When we make a rail waypoint of the station, convert the map as well. */
00094       TILE_AREA_LOOP(t, train_st) {
00095         if (!IsTileType(t, MP_STATION) || GetStationIndex(t) != index) continue;
00096 
00097         SB(_m[t].m6, 3, 3, STATION_WAYPOINT);
00098         wp->rect.BeforeAddTile(t, StationRect::ADD_FORCE);
00099       }
00100 
00101       wp->train_station = train_st;
00102       wp->facilities |= FACIL_TRAIN;
00103     } else if (IsBuoyTile(xy) && GetStationIndex(xy) == index) {
00104       wp->rect.BeforeAddTile(xy, StationRect::ADD_FORCE);
00105       wp->facilities |= FACIL_DOCK;
00106     }
00107   }
00108 }
00109 
00110 void AfterLoadStations()
00111 {
00112   /* Update the speclists of all stations to point to the currently loaded custom stations. */
00113   BaseStation *st;
00114   FOR_ALL_BASE_STATIONS(st) {
00115     for (uint i = 0; i < st->num_specs; i++) {
00116       if (st->speclist[i].grfid == 0) continue;
00117 
00118       st->speclist[i].spec = StationClass::GetByGrf(st->speclist[i].grfid, st->speclist[i].localidx, NULL);
00119     }
00120 
00121     if (Station::IsExpected(st)) {
00122       Station *sta = Station::From(st);
00123       for (const RoadStop *rs = sta->bus_stops; rs != NULL; rs = rs->next) sta->bus_station.Add(rs->xy);
00124       for (const RoadStop *rs = sta->truck_stops; rs != NULL; rs = rs->next) sta->truck_station.Add(rs->xy);
00125     }
00126 
00127     StationUpdateAnimTriggers(st);
00128   }
00129 }
00130 
00134 void AfterLoadRoadStops()
00135 {
00136   /* First construct the drive through entries */
00137   RoadStop *rs;
00138   FOR_ALL_ROADSTOPS(rs) {
00139     if (IsDriveThroughStopTile(rs->xy)) rs->MakeDriveThrough();
00140   }
00141   /* And then rebuild the data in those entries */
00142   FOR_ALL_ROADSTOPS(rs) {
00143     if (!HasBit(rs->status, RoadStop::RSSFB_BASE_ENTRY)) continue;
00144 
00145     rs->GetEntry(DIAGDIR_NE)->Rebuild(rs);
00146     rs->GetEntry(DIAGDIR_NW)->Rebuild(rs);
00147   }
00148 }
00149 
00150 static const SaveLoad _roadstop_desc[] = {
00151   SLE_VAR(RoadStop, xy,           SLE_UINT32),
00152   SLE_CONDNULL(1, 0, 44),
00153   SLE_VAR(RoadStop, status,       SLE_UINT8),
00154   /* Index was saved in some versions, but this is not needed */
00155   SLE_CONDNULL(4, 0, 8),
00156   SLE_CONDNULL(2, 0, 44),
00157   SLE_CONDNULL(1, 0, 25),
00158 
00159   SLE_REF(RoadStop, next,         REF_ROADSTOPS),
00160   SLE_CONDNULL(2, 0, 44),
00161 
00162   SLE_CONDNULL(4, 0, 24),
00163   SLE_CONDNULL(1, 25, 25),
00164 
00165   SLE_END()
00166 };
00167 
00168 static const SaveLoad _old_station_desc[] = {
00169   SLE_CONDVAR(Station, xy,                         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00170   SLE_CONDVAR(Station, xy,                         SLE_UINT32,                  6, SL_MAX_VERSION),
00171   SLE_CONDNULL(4, 0, 5),  
00172   SLE_CONDVAR(Station, train_station.tile,         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00173   SLE_CONDVAR(Station, train_station.tile,         SLE_UINT32,                  6, SL_MAX_VERSION),
00174   SLE_CONDVAR(Station, airport.tile,               SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00175   SLE_CONDVAR(Station, airport.tile,               SLE_UINT32,                  6, SL_MAX_VERSION),
00176   SLE_CONDVAR(Station, dock_tile,                  SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00177   SLE_CONDVAR(Station, dock_tile,                  SLE_UINT32,                  6, SL_MAX_VERSION),
00178       SLE_REF(Station, town,                       REF_TOWN),
00179       SLE_VAR(Station, train_station.w,            SLE_FILE_U8 | SLE_VAR_U16),
00180   SLE_CONDVAR(Station, train_station.h,            SLE_FILE_U8 | SLE_VAR_U16,   2, SL_MAX_VERSION),
00181 
00182   SLE_CONDNULL(1, 0, 3),  
00183 
00184       SLE_VAR(Station, string_id,                  SLE_STRINGID),
00185   SLE_CONDSTR(Station, name,                       SLE_STR, 0,                 84, SL_MAX_VERSION),
00186   SLE_CONDVAR(Station, indtype,                    SLE_UINT8,                 103, SL_MAX_VERSION),
00187   SLE_CONDVAR(Station, had_vehicle_of_type,        SLE_FILE_U16 | SLE_VAR_U8,   0, 121),
00188   SLE_CONDVAR(Station, had_vehicle_of_type,        SLE_UINT8,                 122, SL_MAX_VERSION),
00189 
00190       SLE_VAR(Station, time_since_load,            SLE_UINT8),
00191       SLE_VAR(Station, time_since_unload,          SLE_UINT8),
00192       SLE_VAR(Station, delete_ctr,                 SLE_UINT8),
00193       SLE_VAR(Station, owner,                      SLE_UINT8),
00194       SLE_VAR(Station, facilities,                 SLE_UINT8),
00195       SLE_VAR(Station, airport.type,               SLE_UINT8),
00196 
00197   SLE_CONDNULL(2, 0, 5),  
00198   SLE_CONDNULL(1, 0, 4),  
00199 
00200   SLE_CONDVAR(Station, airport.flags,              SLE_VAR_U64 | SLE_FILE_U16,  0,  2),
00201   SLE_CONDVAR(Station, airport.flags,              SLE_VAR_U64 | SLE_FILE_U32,  3, 45),
00202   SLE_CONDVAR(Station, airport.flags,              SLE_UINT64,                 46, SL_MAX_VERSION),
00203 
00204   SLE_CONDNULL(2, 0, 25), 
00205   SLE_CONDVAR(Station, last_vehicle_type,          SLE_UINT8,                  26, SL_MAX_VERSION),
00206 
00207   SLE_CONDNULL(2, 3, 25), 
00208   SLE_CONDVAR(Station, build_date,                 SLE_FILE_U16 | SLE_VAR_I32,  3, 30),
00209   SLE_CONDVAR(Station, build_date,                 SLE_INT32,                  31, SL_MAX_VERSION),
00210 
00211   SLE_CONDREF(Station, bus_stops,                  REF_ROADSTOPS,               6, SL_MAX_VERSION),
00212   SLE_CONDREF(Station, truck_stops,                REF_ROADSTOPS,               6, SL_MAX_VERSION),
00213 
00214   /* Used by newstations for graphic variations */
00215   SLE_CONDVAR(Station, random_bits,                SLE_UINT16,                 27, SL_MAX_VERSION),
00216   SLE_CONDVAR(Station, waiting_triggers,           SLE_UINT8,                  27, SL_MAX_VERSION),
00217   SLE_CONDVAR(Station, num_specs,                  SLE_UINT8,                  27, SL_MAX_VERSION),
00218 
00219   SLE_CONDLST(Station, loading_vehicles,           REF_VEHICLE,                57, SL_MAX_VERSION),
00220 
00221   /* reserve extra space in savegame here. (currently 32 bytes) */
00222   SLE_CONDNULL(32, 2, SL_MAX_VERSION),
00223 
00224   SLE_END()
00225 };
00226 
00227 static uint16 _waiting_acceptance;
00228 static uint16 _num_links;
00229 static uint32 _num_flows;
00230 static uint16 _cargo_source;
00231 static uint32 _cargo_source_xy;
00232 static uint8  _cargo_days;
00233 static Money  _cargo_feeder_share;
00234 
00235 static const SaveLoad _station_speclist_desc[] = {
00236   SLE_CONDVAR(StationSpecList, grfid,    SLE_UINT32, 27, SL_MAX_VERSION),
00237   SLE_CONDVAR(StationSpecList, localidx, SLE_UINT8,  27, SL_MAX_VERSION),
00238 
00239   SLE_END()
00240 };
00241 
00242 static StationID _station_id;
00243 
00249 const SaveLoad *GetLinkStatDesc()
00250 {
00251   static const SaveLoad linkstat_desc[] = {
00252     SLEG_VAR(             _station_id,         SLE_UINT16),
00253      SLE_VAR(LinkStat,    length,              SLE_UINT32),
00254      SLE_VAR(LinkStat,    capacity,            SLE_UINT32),
00255      SLE_VAR(LinkStat,    timeout,             SLE_UINT32),
00256      SLE_VAR(LinkStat,    usage,               SLE_UINT32),
00257      SLE_END()
00258   };
00259 
00260   return linkstat_desc;
00261 }
00262 
00268 const SaveLoad *GetFlowStatDesc()
00269 {
00270   static const SaveLoad _flowstat_desc[] = {
00271     SLEG_CONDVAR(             _station_id,         SLE_UINT16,         SL_FLOWMAP, SL_MAX_VERSION),
00272      SLE_CONDVAR(FlowStat,    via,                 SLE_UINT16,         SL_FLOWMAP, SL_MAX_VERSION),
00273      SLE_CONDVAR(FlowStat,    length,              SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00274      SLE_CONDVAR(FlowStat,    planned,             SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00275      SLE_CONDVAR(FlowStat,    sent,                SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00276      SLE_END()
00277   };
00278 
00279   return _flowstat_desc;
00280 }
00281 
00282 std::list<CargoPacket *> _packets;
00283 uint32 _num_dests;
00284 
00290 const SaveLoad *GetGoodsDesc()
00291 {
00292   static const SaveLoad goods_desc[] = {
00293     SLEG_CONDVAR(            _waiting_acceptance, SLE_UINT16,                  0, 67),
00294      SLE_CONDVAR(GoodsEntry, acceptance_pickup,   SLE_UINT8,                  68, SL_MAX_VERSION),
00295     SLE_CONDNULL(2,                                                           51, 67),
00296          SLE_VAR(GoodsEntry, days_since_pickup,   SLE_UINT8),
00297          SLE_VAR(GoodsEntry, rating,              SLE_UINT8),
00298     SLEG_CONDVAR(            _cargo_source,       SLE_FILE_U8 | SLE_VAR_U16,   0, 6),
00299     SLEG_CONDVAR(            _cargo_source,       SLE_UINT16,                  7, 67),
00300     SLEG_CONDVAR(            _cargo_source_xy,    SLE_UINT32,                 44, 67),
00301     SLEG_CONDVAR(            _cargo_days,         SLE_UINT8,                   0, 67),
00302          SLE_VAR(GoodsEntry, last_speed,          SLE_UINT8),
00303          SLE_VAR(GoodsEntry, last_age,            SLE_UINT8),
00304     SLEG_CONDVAR(            _cargo_feeder_share, SLE_FILE_U32 | SLE_VAR_I64, 14, 64),
00305     SLEG_CONDVAR(            _cargo_feeder_share, SLE_INT64,                  65, 67),
00306      SLE_CONDVAR(GoodsEntry, amount_fract,        SLE_UINT8,                 150, SL_MAX_VERSION),
00307     SLEG_CONDLST(            _packets,            REF_CARGO_PACKET,           68, SL_CARGOMAP - 1),
00308     SLEG_CONDVAR(            _num_dests,          SLE_UINT32,        SL_CARGOMAP, SL_MAX_VERSION),
00309      SLE_CONDVAR(GoodsEntry, supply,              SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00310      SLE_CONDVAR(GoodsEntry, supply_new,          SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00311     SLEG_CONDVAR(            _num_links,          SLE_UINT16,      SL_CAPACITIES, SL_MAX_VERSION),
00312     SLEG_CONDVAR(            _num_flows,          SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00313      SLE_CONDVAR(GoodsEntry, last_component,      SLE_UINT16,      SL_COMPONENTS, SL_MAX_VERSION),
00314      SLE_CONDVAR(GoodsEntry, max_waiting_cargo,   SLE_UINT32,      SL_EXT_RATING, SL_MAX_VERSION),
00315     SLE_END()
00316   };
00317 
00318   return goods_desc;
00319 }
00320 
00321 typedef std::pair<const StationID, std::list<CargoPacket *> > StationCargoPair;
00322 
00323 static const SaveLoad _cargo_list_desc[] = {
00324   SLE_VAR(StationCargoPair, first,  SLE_UINT16),
00325   SLE_LST(StationCargoPair, second, REF_CARGO_PACKET),
00326   SLE_END()
00327 };
00328 
00334 static void SwapPackets(GoodsEntry *ge)
00335 {
00336   StationCargoPacketMap &ge_packets = const_cast<StationCargoPacketMap &>(*ge->cargo.Packets());
00337 
00338   if (_packets.empty()) {
00339     std::map<StationID, std::list<CargoPacket *> >::iterator it(ge_packets.find(INVALID_STATION));
00340     if (it == ge_packets.end()) {
00341       return;
00342     } else {
00343       it->second.swap(_packets);
00344     }
00345   } else {
00346     assert(ge_packets[INVALID_STATION].empty());
00347     ge_packets[INVALID_STATION].swap(_packets);
00348   }
00349 }
00350 
00351 static void Load_STNS()
00352 {
00353   int index;
00354   while ((index = SlIterateArray()) != -1) {
00355     Station *st = new (index) Station();
00356 
00357     SlObject(st, _old_station_desc);
00358 
00359     _waiting_acceptance = 0;
00360 
00361     uint num_cargo = IsSavegameVersionBefore(55) ? 12 : NUM_CARGO;
00362     for (CargoID i = 0; i < num_cargo; i++) {
00363       GoodsEntry *ge = &st->goods[i];
00364       SlObject(ge, GetGoodsDesc());
00365       SwapPackets(ge);
00366       if (IsSavegameVersionBefore(68)) {
00367         SB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1, HasBit(_waiting_acceptance, 15));
00368         if (GB(_waiting_acceptance, 0, 12) != 0) {
00369           /* In old versions, enroute_from used 0xFF as INVALID_STATION */
00370           StationID source = (IsSavegameVersionBefore(7) && _cargo_source == 0xFF) ? INVALID_STATION : _cargo_source;
00371 
00372           /* Make sure we can allocate the CargoPacket. This is safe
00373            * as there can only be ~64k stations and 32 cargos in these
00374            * savegame versions. As the CargoPacketPool has more than
00375            * 16 million entries; it fits by an order of magnitude. */
00376           assert(CargoPacket::CanAllocateItem());
00377 
00378           /* Don't construct the packet with station here, because that'll fail with old savegames */
00379           CargoPacket *cp = new CargoPacket(GB(_waiting_acceptance, 0, 12), _cargo_days, source, _cargo_source_xy, _cargo_source_xy, _cargo_feeder_share);
00380           ge->cargo.Append(INVALID_STATION, cp);
00381           SB(ge->acceptance_pickup, GoodsEntry::GES_PICKUP, 1, 1);
00382         }
00383       }
00384     }
00385 
00386     if (st->num_specs != 0) {
00387       /* Allocate speclist memory when loading a game */
00388       st->speclist = CallocT<StationSpecList>(st->num_specs);
00389       for (uint i = 0; i < st->num_specs; i++) {
00390         SlObject(&st->speclist[i], _station_speclist_desc);
00391       }
00392     }
00393   }
00394 }
00395 
00396 static void Ptrs_STNS()
00397 {
00398   /* Don't run when savegame version is higher than or equal to 123. */
00399   if (!IsSavegameVersionBefore(123)) return;
00400 
00401   Station *st;
00402   FOR_ALL_STATIONS(st) {
00403     if (!IsSavegameVersionBefore(68)) {
00404       for (CargoID i = 0; i < NUM_CARGO; i++) {
00405         GoodsEntry *ge = &st->goods[i];
00406         SwapPackets(ge);
00407         SlObject(ge, GetGoodsDesc());
00408         SwapPackets(ge);
00409       }
00410     }
00411     SlObject(st, _old_station_desc);
00412   }
00413 }
00414 
00415 
00416 static const SaveLoad _base_station_desc[] = {
00417         SLE_VAR(BaseStation, xy,                     SLE_UINT32),
00418         SLE_REF(BaseStation, town,                   REF_TOWN),
00419         SLE_VAR(BaseStation, string_id,              SLE_STRINGID),
00420         SLE_STR(BaseStation, name,                   SLE_STR, 0),
00421         SLE_VAR(BaseStation, delete_ctr,             SLE_UINT8),
00422         SLE_VAR(BaseStation, owner,                  SLE_UINT8),
00423         SLE_VAR(BaseStation, facilities,             SLE_UINT8),
00424         SLE_VAR(BaseStation, build_date,             SLE_INT32),
00425 
00426   /* Used by newstations for graphic variations */
00427         SLE_VAR(BaseStation, random_bits,            SLE_UINT16),
00428         SLE_VAR(BaseStation, waiting_triggers,       SLE_UINT8),
00429         SLE_VAR(BaseStation, num_specs,              SLE_UINT8),
00430 
00431         SLE_END()
00432 };
00433 
00434 static OldPersistentStorage _old_st_persistent_storage;
00435 
00436 static const SaveLoad _station_desc[] = {
00437   SLE_WRITEBYTE(Station, facilities,                 FACIL_NONE),
00438   SLE_ST_INCLUDE(),
00439 
00440         SLE_VAR(Station, train_station.tile,         SLE_UINT32),
00441         SLE_VAR(Station, train_station.w,            SLE_FILE_U8 | SLE_VAR_U16),
00442         SLE_VAR(Station, train_station.h,            SLE_FILE_U8 | SLE_VAR_U16),
00443 
00444         SLE_REF(Station, bus_stops,                  REF_ROADSTOPS),
00445         SLE_REF(Station, truck_stops,                REF_ROADSTOPS),
00446         SLE_VAR(Station, dock_tile,                  SLE_UINT32),
00447         SLE_VAR(Station, airport.tile,               SLE_UINT32),
00448     SLE_CONDVAR(Station, airport.w,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00449     SLE_CONDVAR(Station, airport.h,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00450         SLE_VAR(Station, airport.type,               SLE_UINT8),
00451     SLE_CONDVAR(Station, airport.layout,             SLE_UINT8,                 145, SL_MAX_VERSION),
00452         SLE_VAR(Station, airport.flags,              SLE_UINT64),
00453     SLE_CONDVAR(Station, airport.rotation,           SLE_UINT8,                 145, SL_MAX_VERSION),
00454    SLEG_CONDARR(_old_st_persistent_storage.storage,  SLE_UINT32, 16,            145, 160),
00455     SLE_CONDREF(Station, airport.psa,                REF_STORAGE,               161, SL_MAX_VERSION),
00456 
00457         SLE_VAR(Station, indtype,                    SLE_UINT8),
00458 
00459         SLE_VAR(Station, time_since_load,            SLE_UINT8),
00460         SLE_VAR(Station, time_since_unload,          SLE_UINT8),
00461         SLE_VAR(Station, last_vehicle_type,          SLE_UINT8),
00462         SLE_VAR(Station, had_vehicle_of_type,        SLE_UINT8),
00463         SLE_LST(Station, loading_vehicles,           REF_VEHICLE),
00464     SLE_CONDVAR(Station, always_accepted,            SLE_UINT32, 127, SL_MAX_VERSION),
00465 
00466         SLE_END()
00467 };
00468 
00469 static const SaveLoad _waypoint_desc[] = {
00470   SLE_WRITEBYTE(Waypoint, facilities,                FACIL_WAYPOINT),
00471   SLE_ST_INCLUDE(),
00472 
00473         SLE_VAR(Waypoint, town_cn,                   SLE_UINT16),
00474 
00475     SLE_CONDVAR(Waypoint, train_station.tile,        SLE_UINT32,                  124, SL_MAX_VERSION),
00476     SLE_CONDVAR(Waypoint, train_station.w,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00477     SLE_CONDVAR(Waypoint, train_station.h,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00478 
00479         SLE_END()
00480 };
00481 
00486 const SaveLoad *GetBaseStationDescription()
00487 {
00488   return _base_station_desc;
00489 }
00490 
00491 static void RealSave_STNN(BaseStation *bst)
00492 {
00493   bool waypoint = (bst->facilities & FACIL_WAYPOINT) != 0;
00494   SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00495 
00496   if (!waypoint) {
00497     Station *st = Station::From(bst);
00498     for (CargoID i = 0; i < NUM_CARGO; i++) {
00499       _num_dests = (uint32)st->goods[i].cargo.Packets()->MapSize();
00500       _num_links = (uint16)st->goods[i].link_stats.size();
00501       _num_flows = 0;
00502       for (FlowStatMap::const_iterator it(st->goods[i].flows.begin()); it != st->goods[i].flows.end(); ++it) {
00503         _num_flows += (uint32)it->second.size();
00504       }
00505       SlObject(&st->goods[i], GetGoodsDesc());
00506       for (LinkStatMap::const_iterator it(st->goods[i].link_stats.begin()); it != st->goods[i].link_stats.end(); ++it) {
00507         _station_id = it->first;
00508         LinkStat ls(it->second); // make a copy to avoid constness problems
00509         SlObject(&ls, GetLinkStatDesc());
00510       }
00511       for (FlowStatMap::const_iterator outer_it(st->goods[i].flows.begin()); outer_it != st->goods[i].flows.end(); ++outer_it) {
00512         _station_id = outer_it->first;
00513         for (FlowStatSet::const_iterator inner_it(outer_it->second.begin()); inner_it != outer_it->second.end(); ++inner_it) {
00514           FlowStat fs(*inner_it); // make a copy to avoid constness problems
00515           SlObject(&fs, GetFlowStatDesc());
00516         }
00517       }
00518       for (StationCargoPacketMap::ConstMapIterator it(st->goods[i].cargo.Packets()->begin()); it != st->goods[i].cargo.Packets()->end(); ++it) {
00519         SlObject(const_cast<StationCargoPacketMap::value_type *>(&(*it)), _cargo_list_desc);
00520       }
00521     }
00522   }
00523 
00524   for (uint i = 0; i < bst->num_specs; i++) {
00525     SlObject(&bst->speclist[i], _station_speclist_desc);
00526   }
00527 }
00528 
00529 static void Save_STNN()
00530 {
00531   BaseStation *st;
00532   /* Write the stations */
00533   FOR_ALL_BASE_STATIONS(st) {
00534     SlSetArrayIndex(st->index);
00535     SlAutolength((AutolengthProc*)RealSave_STNN, st);
00536   }
00537 }
00538 
00539 static void Load_STNN()
00540 {
00541   int index;
00542 
00543   while ((index = SlIterateArray()) != -1) {
00544     bool waypoint = (SlReadByte() & FACIL_WAYPOINT) != 0;
00545 
00546     BaseStation *bst = waypoint ? (BaseStation *)new (index) Waypoint() : new (index) Station();
00547     SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00548 
00549     if (!waypoint) {
00550       Station *st = Station::From(bst);
00551 
00552       /* Before savegame version 161, persistent storages were not stored in a pool. */
00553       if (IsSavegameVersionBefore(161) && !IsSavegameVersionBefore(145) && st->facilities & FACIL_AIRPORT) {
00554         /* Store the old persistent storage. The GRFID will be added later. */
00555         assert(PersistentStorage::CanAllocateItem());
00556         st->airport.psa = new PersistentStorage(0);
00557         memcpy(st->airport.psa->storage, _old_st_persistent_storage.storage, sizeof(st->airport.psa->storage));
00558       }
00559 
00560       for (CargoID i = 0; i < NUM_CARGO; i++) {
00561         SlObject(&st->goods[i], GetGoodsDesc());
00562         LinkStat ls(1);
00563         for (uint16 j = 0; j < _num_links; ++j) {
00564           SlObject(&ls, GetLinkStatDesc());
00565           assert(ls.IsValid());
00566           st->goods[i].link_stats.insert(std::make_pair(_station_id, ls));
00567         }
00568         FlowStat fs;
00569         for (uint32 j = 0; j < _num_flows; ++j) {
00570           SlObject(&fs, GetFlowStatDesc());
00571           st->goods[i].flows[_station_id].insert(fs);
00572         }
00573         if (IsSavegameVersionBefore(SL_CARGOMAP -1)) {
00574           SwapPackets(&st->goods[i]);
00575         } else {
00576           StationCargoPair pair;
00577           for (uint j = 0; j < _num_dests; ++j) {
00578             SlObject(&pair, _cargo_list_desc);
00579             const_cast<StationCargoPacketMap &>(*(st->goods[i].cargo.Packets()))[pair.first].swap(pair.second);
00580             assert(pair.second.empty());
00581           }
00582         }
00583       }
00584     }
00585 
00586     if (bst->num_specs != 0) {
00587       /* Allocate speclist memory when loading a game */
00588       bst->speclist = CallocT<StationSpecList>(bst->num_specs);
00589       for (uint i = 0; i < bst->num_specs; i++) {
00590         SlObject(&bst->speclist[i], _station_speclist_desc);
00591       }
00592     }
00593   }
00594 }
00595 
00596 static void Ptrs_STNN()
00597 {
00598   /* Don't run when savegame version lower than 123. */
00599   if (IsSavegameVersionBefore(123)) return;
00600 
00601   Station *st;
00602   FOR_ALL_STATIONS(st) {
00603     for (CargoID i = 0; i < NUM_CARGO; i++) {
00604       GoodsEntry *ge = &st->goods[i];
00605       if (IsSavegameVersionBefore(SL_CARGOMAP)) {
00606         SwapPackets(ge);
00607         SlObject(ge, GetGoodsDesc());
00608         SwapPackets(ge);
00609       } else {
00610         SlObject(ge, GetGoodsDesc());
00611         for (StationCargoPacketMap::ConstMapIterator it = ge->cargo.Packets()->begin(); it != ge->cargo.Packets()->end(); ++it) {
00612           SlObject(const_cast<StationCargoPair *>(&(*it)), _cargo_list_desc);
00613         }
00614       }
00615     }
00616     SlObject(st, _station_desc);
00617   }
00618 
00619   Waypoint *wp;
00620   FOR_ALL_WAYPOINTS(wp) {
00621     SlObject(wp, _waypoint_desc);
00622   }
00623 }
00624 
00625 static void Save_ROADSTOP()
00626 {
00627   RoadStop *rs;
00628 
00629   FOR_ALL_ROADSTOPS(rs) {
00630     SlSetArrayIndex(rs->index);
00631     SlObject(rs, _roadstop_desc);
00632   }
00633 }
00634 
00635 static void Load_ROADSTOP()
00636 {
00637   int index;
00638 
00639   while ((index = SlIterateArray()) != -1) {
00640     RoadStop *rs = new (index) RoadStop(INVALID_TILE);
00641 
00642     SlObject(rs, _roadstop_desc);
00643   }
00644 }
00645 
00646 static void Ptrs_ROADSTOP()
00647 {
00648   RoadStop *rs;
00649   FOR_ALL_ROADSTOPS(rs) {
00650     SlObject(rs, _roadstop_desc);
00651   }
00652 }
00653 
00654 extern const ChunkHandler _station_chunk_handlers[] = {
00655   { 'STNS', NULL,          Load_STNS,     Ptrs_STNS,     NULL, CH_ARRAY },
00656   { 'STNN', Save_STNN,     Load_STNN,     Ptrs_STNN,     NULL, CH_ARRAY },
00657   { 'ROAD', Save_ROADSTOP, Load_ROADSTOP, Ptrs_ROADSTOP, NULL, CH_ARRAY | CH_LAST},
00658 };