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 
00019 #include "saveload.h"
00020 #include "table/strings.h"
00021 
00026 static void UpdateWaypointOrder(Order *o)
00027 {
00028   if (!o->IsType(OT_GOTO_STATION)) return;
00029 
00030   const Station *st = Station::Get(o->GetDestination());
00031   if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) return;
00032 
00033   o->MakeGoToWaypoint(o->GetDestination());
00034 }
00035 
00040 void MoveBuoysToWaypoints()
00041 {
00042   /* Buoy orders become waypoint orders */
00043   OrderList *ol;
00044   FOR_ALL_ORDER_LISTS(ol) {
00045     VehicleType vt = ol->GetFirstSharedVehicle()->type;
00046     if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
00047 
00048     for (Order *o = ol->GetFirstOrder(); o != NULL; o = o->next) UpdateWaypointOrder(o);
00049   }
00050 
00051   Vehicle *v;
00052   FOR_ALL_VEHICLES(v) {
00053     VehicleType vt = v->type;
00054     if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
00055 
00056     UpdateWaypointOrder(&v->current_order);
00057   }
00058 
00059   /* Now make the stations waypoints */
00060   Station *st;
00061   FOR_ALL_STATIONS(st) {
00062     if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) continue;
00063 
00064     StationID index    = st->index;
00065     TileIndex xy       = st->xy;
00066     Town *town         = st->town;
00067     StringID string_id = st->string_id;
00068     char *name         = st->name;
00069     st->name           = NULL;
00070     Date build_date    = st->build_date;
00071     /* TTDPatch could use "buoys with rail station" for rail waypoints */
00072     bool train         = st->train_station.tile != INVALID_TILE;
00073     TileArea train_st  = st->train_station;
00074 
00075     /* Delete the station, so we can make it a real waypoint. */
00076     delete st;
00077 
00078     /* Stations and waypoints are in the same pool, so if a station
00079      * is deleted there must be place for a Waypoint. */
00080     assert(Waypoint::CanAllocateItem());
00081     Waypoint *wp   = new (index) Waypoint(xy);
00082     wp->town       = town;
00083     wp->string_id  = train ? STR_SV_STNAME_WAYPOINT : STR_SV_STNAME_BUOY;
00084     wp->name       = name;
00085     wp->delete_ctr = 0; // Just reset delete counter for once.
00086     wp->build_date = build_date;
00087     wp->owner      = train ? GetTileOwner(xy) : OWNER_NONE;
00088 
00089     if (IsInsideBS(string_id, STR_SV_STNAME_BUOY, 9)) wp->town_cn = string_id - STR_SV_STNAME_BUOY;
00090 
00091     if (train) {
00092       /* When we make a rail waypoint of the station, convert the map as well. */
00093       TILE_AREA_LOOP(t, train_st) {
00094         if (!IsTileType(t, MP_STATION) || GetStationIndex(t) != index) continue;
00095 
00096         SB(_m[t].m6, 3, 3, STATION_WAYPOINT);
00097         wp->rect.BeforeAddTile(t, StationRect::ADD_FORCE);
00098       }
00099 
00100       wp->train_station = train_st;
00101       wp->facilities |= FACIL_TRAIN;
00102     } else if (IsBuoyTile(xy) && GetStationIndex(xy) == index) {
00103       wp->rect.BeforeAddTile(xy, StationRect::ADD_FORCE);
00104       wp->facilities |= FACIL_DOCK;
00105     }
00106   }
00107 }
00108 
00109 void AfterLoadStations()
00110 {
00111   /* Update the speclists of all stations to point to the currently loaded custom stations. */
00112   BaseStation *st;
00113   FOR_ALL_BASE_STATIONS(st) {
00114     for (uint i = 0; i < st->num_specs; i++) {
00115       if (st->speclist[i].grfid == 0) continue;
00116 
00117       st->speclist[i].spec = StationClass::GetByGrf(st->speclist[i].grfid, st->speclist[i].localidx, NULL);
00118     }
00119 
00120     if (Station::IsExpected(st)) {
00121       Station *sta = Station::From(st);
00122       for (const RoadStop *rs = sta->bus_stops; rs != NULL; rs = rs->next) sta->bus_station.Add(rs->xy);
00123       for (const RoadStop *rs = sta->truck_stops; rs != NULL; rs = rs->next) sta->truck_station.Add(rs->xy);
00124     }
00125 
00126     StationUpdateCachedTriggers(st);
00127   }
00128 }
00129 
00133 void AfterLoadRoadStops()
00134 {
00135   /* First construct the drive through entries */
00136   RoadStop *rs;
00137   FOR_ALL_ROADSTOPS(rs) {
00138     if (IsDriveThroughStopTile(rs->xy)) rs->MakeDriveThrough();
00139   }
00140   /* And then rebuild the data in those entries */
00141   FOR_ALL_ROADSTOPS(rs) {
00142     if (!HasBit(rs->status, RoadStop::RSSFB_BASE_ENTRY)) continue;
00143 
00144     rs->GetEntry(DIAGDIR_NE)->Rebuild(rs);
00145     rs->GetEntry(DIAGDIR_NW)->Rebuild(rs);
00146   }
00147 }
00148 
00149 static const SaveLoad _roadstop_desc[] = {
00150   SLE_VAR(RoadStop, xy,           SLE_UINT32),
00151   SLE_CONDNULL(1, 0, 44),
00152   SLE_VAR(RoadStop, status,       SLE_UINT8),
00153   /* Index was saved in some versions, but this is not needed */
00154   SLE_CONDNULL(4, 0, 8),
00155   SLE_CONDNULL(2, 0, 44),
00156   SLE_CONDNULL(1, 0, 25),
00157 
00158   SLE_REF(RoadStop, next,         REF_ROADSTOPS),
00159   SLE_CONDNULL(2, 0, 44),
00160 
00161   SLE_CONDNULL(4, 0, 24),
00162   SLE_CONDNULL(1, 25, 25),
00163 
00164   SLE_END()
00165 };
00166 
00167 static const SaveLoad _old_station_desc[] = {
00168   SLE_CONDVAR(Station, xy,                         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00169   SLE_CONDVAR(Station, xy,                         SLE_UINT32,                  6, SL_MAX_VERSION),
00170   SLE_CONDNULL(4, 0, 5),  
00171   SLE_CONDVAR(Station, train_station.tile,         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00172   SLE_CONDVAR(Station, train_station.tile,         SLE_UINT32,                  6, SL_MAX_VERSION),
00173   SLE_CONDVAR(Station, airport.tile,               SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00174   SLE_CONDVAR(Station, airport.tile,               SLE_UINT32,                  6, SL_MAX_VERSION),
00175   SLE_CONDVAR(Station, dock_tile,                  SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00176   SLE_CONDVAR(Station, dock_tile,                  SLE_UINT32,                  6, SL_MAX_VERSION),
00177       SLE_REF(Station, town,                       REF_TOWN),
00178       SLE_VAR(Station, train_station.w,            SLE_FILE_U8 | SLE_VAR_U16),
00179   SLE_CONDVAR(Station, train_station.h,            SLE_FILE_U8 | SLE_VAR_U16,   2, SL_MAX_VERSION),
00180 
00181   SLE_CONDNULL(1, 0, 3),  
00182 
00183       SLE_VAR(Station, string_id,                  SLE_STRINGID),
00184   SLE_CONDSTR(Station, name,                       SLE_STR | SLF_ALLOW_CONTROL, 0, 84, SL_MAX_VERSION),
00185   SLE_CONDVAR(Station, indtype,                    SLE_UINT8,                 103, SL_MAX_VERSION),
00186   SLE_CONDVAR(Station, had_vehicle_of_type,        SLE_FILE_U16 | SLE_VAR_U8,   0, 121),
00187   SLE_CONDVAR(Station, had_vehicle_of_type,        SLE_UINT8,                 122, SL_MAX_VERSION),
00188 
00189       SLE_VAR(Station, time_since_load,            SLE_UINT8),
00190       SLE_VAR(Station, time_since_unload,          SLE_UINT8),
00191       SLE_VAR(Station, delete_ctr,                 SLE_UINT8),
00192       SLE_VAR(Station, owner,                      SLE_UINT8),
00193       SLE_VAR(Station, facilities,                 SLE_UINT8),
00194       SLE_VAR(Station, airport.type,               SLE_UINT8),
00195 
00196   SLE_CONDNULL(2, 0, 5),  
00197   SLE_CONDNULL(1, 0, 4),  
00198 
00199   SLE_CONDVAR(Station, airport.flags,              SLE_VAR_U64 | SLE_FILE_U16,  0,  2),
00200   SLE_CONDVAR(Station, airport.flags,              SLE_VAR_U64 | SLE_FILE_U32,  3, 45),
00201   SLE_CONDVAR(Station, airport.flags,              SLE_UINT64,                 46, SL_MAX_VERSION),
00202 
00203   SLE_CONDNULL(2, 0, 25), 
00204   SLE_CONDVAR(Station, last_vehicle_type,          SLE_UINT8,                  26, SL_MAX_VERSION),
00205 
00206   SLE_CONDNULL(2, 3, 25), 
00207   SLE_CONDVAR(Station, build_date,                 SLE_FILE_U16 | SLE_VAR_I32,  3, 30),
00208   SLE_CONDVAR(Station, build_date,                 SLE_INT32,                  31, SL_MAX_VERSION),
00209 
00210   SLE_CONDREF(Station, bus_stops,                  REF_ROADSTOPS,               6, SL_MAX_VERSION),
00211   SLE_CONDREF(Station, truck_stops,                REF_ROADSTOPS,               6, SL_MAX_VERSION),
00212 
00213   /* Used by newstations for graphic variations */
00214   SLE_CONDVAR(Station, random_bits,                SLE_UINT16,                 27, SL_MAX_VERSION),
00215   SLE_CONDVAR(Station, waiting_triggers,           SLE_UINT8,                  27, SL_MAX_VERSION),
00216   SLE_CONDVAR(Station, num_specs,                  SLE_UINT8,                  27, SL_MAX_VERSION),
00217 
00218   SLE_CONDLST(Station, loading_vehicles,           REF_VEHICLE,                57, SL_MAX_VERSION),
00219 
00220   /* reserve extra space in savegame here. (currently 32 bytes) */
00221   SLE_CONDNULL(32, 2, SL_MAX_VERSION),
00222 
00223   SLE_END()
00224 };
00225 
00226 static uint16 _waiting_acceptance;
00227 static uint32 _num_flows;
00228 static uint16 _cargo_source;
00229 static uint32 _cargo_source_xy;
00230 static uint8  _cargo_days;
00231 static Money  _cargo_feeder_share;
00232 
00233 static const SaveLoad _station_speclist_desc[] = {
00234   SLE_CONDVAR(StationSpecList, grfid,    SLE_UINT32, 27, SL_MAX_VERSION),
00235   SLE_CONDVAR(StationSpecList, localidx, SLE_UINT8,  27, SL_MAX_VERSION),
00236 
00237   SLE_END()
00238 };
00239 
00240 std::list<CargoPacket *> _packets;
00241 uint32 _num_dests;
00242 
00243 struct FlowSaveLoad {
00244   FlowSaveLoad() : via(0), share(0) {}
00245   StationID source;
00246   StationID via;
00247   uint32 share;
00248 };
00249 
00250 static const SaveLoad _flow_desc[] = {
00251   SLE_CONDVAR(FlowSaveLoad, source, SLE_UINT16, SL_FLOWS, SL_MAX_VERSION),
00252   SLE_CONDVAR(FlowSaveLoad, via,    SLE_UINT16, SL_FLOWS, SL_MAX_VERSION),
00253   SLE_CONDVAR(FlowSaveLoad, share,  SLE_UINT32, SL_FLOWS, SL_MAX_VERSION),
00254   SLE_END()
00255 };
00256 
00262 const SaveLoad *GetGoodsDesc()
00263 {
00264   static const SaveLoad goods_desc[] = {
00265     SLEG_CONDVAR(            _waiting_acceptance,  SLE_UINT16,                  0, 67),
00266      SLE_CONDVAR(GoodsEntry, acceptance_pickup,    SLE_UINT8,                  68, SL_MAX_VERSION),
00267     SLE_CONDNULL(2,                                                            51, 67),
00268          SLE_VAR(GoodsEntry, time_since_pickup,    SLE_UINT8),
00269          SLE_VAR(GoodsEntry, rating,               SLE_UINT8),
00270     SLEG_CONDVAR(            _cargo_source,        SLE_FILE_U8 | SLE_VAR_U16,   0, 6),
00271     SLEG_CONDVAR(            _cargo_source,        SLE_UINT16,                  7, 67),
00272     SLEG_CONDVAR(            _cargo_source_xy,     SLE_UINT32,                 44, 67),
00273     SLEG_CONDVAR(            _cargo_days,          SLE_UINT8,                   0, 67),
00274          SLE_VAR(GoodsEntry, last_speed,           SLE_UINT8),
00275          SLE_VAR(GoodsEntry, last_age,             SLE_UINT8),
00276     SLEG_CONDVAR(            _cargo_feeder_share,  SLE_FILE_U32 | SLE_VAR_I64, 14, 64),
00277     SLEG_CONDVAR(            _cargo_feeder_share,  SLE_INT64,                  65, 67),
00278      SLE_CONDVAR(GoodsEntry, amount_fract,         SLE_UINT8,                 150, SL_MAX_VERSION),
00279     SLEG_CONDLST(            _packets,             REF_CARGO_PACKET,           68, SL_CARGOMAP - 1),
00280     SLEG_CONDVAR(            _num_dests,           SLE_UINT32,        SL_CARGOMAP, SL_MAX_VERSION),
00281      SLE_CONDVAR(GoodsEntry, cargo.reserved_count, SLE_UINT,                  181, SL_MAX_VERSION),
00282      SLE_CONDVAR(GoodsEntry, link_graph,           SLE_UINT16,           SL_FLOWS, SL_MAX_VERSION),
00283      SLE_CONDVAR(GoodsEntry, node,                 SLE_UINT16,           SL_FLOWS, SL_MAX_VERSION),
00284     SLEG_CONDVAR(            _num_flows,           SLE_UINT32,           SL_FLOWS, SL_MAX_VERSION),
00285      SLE_CONDVAR(GoodsEntry, max_waiting_cargo,    SLE_UINT32,      SL_EXT_RATING, SL_MAX_VERSION),
00286     SLE_END()
00287   };
00288 
00289   return goods_desc;
00290 }
00291 
00292 typedef std::pair<const StationID, std::list<CargoPacket *> > StationCargoPair;
00293 
00294 static const SaveLoad _cargo_list_desc[] = {
00295   SLE_VAR(StationCargoPair, first,  SLE_UINT16),
00296   SLE_LST(StationCargoPair, second, REF_CARGO_PACKET),
00297   SLE_END()
00298 };
00299 
00305 static void SwapPackets(GoodsEntry *ge)
00306 {
00307   StationCargoPacketMap &ge_packets = const_cast<StationCargoPacketMap &>(*ge->cargo.Packets());
00308 
00309   if (_packets.empty()) {
00310     std::map<StationID, std::list<CargoPacket *> >::iterator it(ge_packets.find(INVALID_STATION));
00311     if (it == ge_packets.end()) {
00312       return;
00313     } else {
00314       it->second.swap(_packets);
00315     }
00316   } else {
00317     assert(ge_packets[INVALID_STATION].empty());
00318     ge_packets[INVALID_STATION].swap(_packets);
00319   }
00320 }
00321 
00322 static void Load_STNS()
00323 {
00324   int index;
00325   while ((index = SlIterateArray()) != -1) {
00326     Station *st = new (index) Station();
00327 
00328     SlObject(st, _old_station_desc);
00329 
00330     _waiting_acceptance = 0;
00331 
00332     uint num_cargo = IsSavegameVersionBefore(55) ? 12 : NUM_CARGO;
00333     for (CargoID i = 0; i < num_cargo; i++) {
00334       GoodsEntry *ge = &st->goods[i];
00335       SlObject(ge, GetGoodsDesc());
00336       SwapPackets(ge);
00337       if (IsSavegameVersionBefore(68)) {
00338         SB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1, HasBit(_waiting_acceptance, 15));
00339         if (GB(_waiting_acceptance, 0, 12) != 0) {
00340           /* In old versions, enroute_from used 0xFF as INVALID_STATION */
00341           StationID source = (IsSavegameVersionBefore(7) && _cargo_source == 0xFF) ? INVALID_STATION : _cargo_source;
00342 
00343           /* Make sure we can allocate the CargoPacket. This is safe
00344            * as there can only be ~64k stations and 32 cargoes in these
00345            * savegame versions. As the CargoPacketPool has more than
00346            * 16 million entries; it fits by an order of magnitude. */
00347           assert(CargoPacket::CanAllocateItem());
00348 
00349           /* Don't construct the packet with station here, because that'll fail with old savegames */
00350           CargoPacket *cp = new CargoPacket(GB(_waiting_acceptance, 0, 12), _cargo_days, source, _cargo_source_xy, _cargo_source_xy, _cargo_feeder_share);
00351           ge->cargo.Append(cp, INVALID_STATION);
00352           SB(ge->acceptance_pickup, GoodsEntry::GES_PICKUP, 1, 1);
00353         }
00354       }
00355     }
00356 
00357     if (st->num_specs != 0) {
00358       /* Allocate speclist memory when loading a game */
00359       st->speclist = CallocT<StationSpecList>(st->num_specs);
00360       for (uint i = 0; i < st->num_specs; i++) {
00361         SlObject(&st->speclist[i], _station_speclist_desc);
00362       }
00363     }
00364   }
00365 }
00366 
00367 static void Ptrs_STNS()
00368 {
00369   /* Don't run when savegame version is higher than or equal to 123. */
00370   if (!IsSavegameVersionBefore(123)) return;
00371 
00372   Station *st;
00373   FOR_ALL_STATIONS(st) {
00374     if (!IsSavegameVersionBefore(68)) {
00375       for (CargoID i = 0; i < NUM_CARGO; i++) {
00376         GoodsEntry *ge = &st->goods[i];
00377         SwapPackets(ge);
00378         SlObject(ge, GetGoodsDesc());
00379         SwapPackets(ge);
00380       }
00381     }
00382     SlObject(st, _old_station_desc);
00383   }
00384 }
00385 
00386 
00387 static const SaveLoad _base_station_desc[] = {
00388         SLE_VAR(BaseStation, xy,                     SLE_UINT32),
00389         SLE_REF(BaseStation, town,                   REF_TOWN),
00390         SLE_VAR(BaseStation, string_id,              SLE_STRINGID),
00391         SLE_STR(BaseStation, name,                   SLE_STR | SLF_ALLOW_CONTROL, 0),
00392         SLE_VAR(BaseStation, delete_ctr,             SLE_UINT8),
00393         SLE_VAR(BaseStation, owner,                  SLE_UINT8),
00394         SLE_VAR(BaseStation, facilities,             SLE_UINT8),
00395         SLE_VAR(BaseStation, build_date,             SLE_INT32),
00396 
00397   /* Used by newstations for graphic variations */
00398         SLE_VAR(BaseStation, random_bits,            SLE_UINT16),
00399         SLE_VAR(BaseStation, waiting_triggers,       SLE_UINT8),
00400         SLE_VAR(BaseStation, num_specs,              SLE_UINT8),
00401 
00402         SLE_END()
00403 };
00404 
00405 static OldPersistentStorage _old_st_persistent_storage;
00406 
00407 static const SaveLoad _station_desc[] = {
00408   SLE_WRITEBYTE(Station, facilities,                 FACIL_NONE),
00409   SLE_ST_INCLUDE(),
00410 
00411         SLE_VAR(Station, train_station.tile,         SLE_UINT32),
00412         SLE_VAR(Station, train_station.w,            SLE_FILE_U8 | SLE_VAR_U16),
00413         SLE_VAR(Station, train_station.h,            SLE_FILE_U8 | SLE_VAR_U16),
00414 
00415         SLE_REF(Station, bus_stops,                  REF_ROADSTOPS),
00416         SLE_REF(Station, truck_stops,                REF_ROADSTOPS),
00417         SLE_VAR(Station, dock_tile,                  SLE_UINT32),
00418         SLE_VAR(Station, airport.tile,               SLE_UINT32),
00419     SLE_CONDVAR(Station, airport.w,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00420     SLE_CONDVAR(Station, airport.h,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00421         SLE_VAR(Station, airport.type,               SLE_UINT8),
00422     SLE_CONDVAR(Station, airport.layout,             SLE_UINT8,                 145, SL_MAX_VERSION),
00423         SLE_VAR(Station, airport.flags,              SLE_UINT64),
00424     SLE_CONDVAR(Station, airport.rotation,           SLE_UINT8,                 145, SL_MAX_VERSION),
00425    SLEG_CONDARR(_old_st_persistent_storage.storage,  SLE_UINT32, 16,            145, 160),
00426     SLE_CONDREF(Station, airport.psa,                REF_STORAGE,               161, SL_MAX_VERSION),
00427 
00428         SLE_VAR(Station, indtype,                    SLE_UINT8),
00429 
00430         SLE_VAR(Station, time_since_load,            SLE_UINT8),
00431         SLE_VAR(Station, time_since_unload,          SLE_UINT8),
00432         SLE_VAR(Station, last_vehicle_type,          SLE_UINT8),
00433         SLE_VAR(Station, had_vehicle_of_type,        SLE_UINT8),
00434         SLE_LST(Station, loading_vehicles,           REF_VEHICLE),
00435     SLE_CONDVAR(Station, always_accepted,            SLE_UINT32, 127, SL_MAX_VERSION),
00436 
00437         SLE_END()
00438 };
00439 
00440 static const SaveLoad _waypoint_desc[] = {
00441   SLE_WRITEBYTE(Waypoint, facilities,                FACIL_WAYPOINT),
00442   SLE_ST_INCLUDE(),
00443 
00444         SLE_VAR(Waypoint, town_cn,                   SLE_UINT16),
00445 
00446     SLE_CONDVAR(Waypoint, train_station.tile,        SLE_UINT32,                  124, SL_MAX_VERSION),
00447     SLE_CONDVAR(Waypoint, train_station.w,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00448     SLE_CONDVAR(Waypoint, train_station.h,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00449 
00450         SLE_END()
00451 };
00452 
00457 const SaveLoad *GetBaseStationDescription()
00458 {
00459   return _base_station_desc;
00460 }
00461 
00462 static void RealSave_STNN(BaseStation *bst)
00463 {
00464   bool waypoint = (bst->facilities & FACIL_WAYPOINT) != 0;
00465   SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00466 
00467   if (!waypoint) {
00468     Station *st = Station::From(bst);
00469     for (CargoID i = 0; i < NUM_CARGO; i++) {
00470       _num_dests = (uint32)st->goods[i].cargo.Packets()->MapSize();
00471       _num_flows = 0;
00472       for (FlowStatMap::const_iterator it(st->goods[i].flows.begin()); it != st->goods[i].flows.end(); ++it) {
00473         _num_flows += (uint32)it->second.GetShares()->size();
00474       }
00475       SlObject(&st->goods[i], GetGoodsDesc());
00476       for (FlowStatMap::const_iterator outer_it(st->goods[i].flows.begin()); outer_it != st->goods[i].flows.end(); ++outer_it) {
00477         const FlowStat::SharesMap *shares = outer_it->second.GetShares();
00478         uint32 sum_shares = 0;
00479         FlowSaveLoad flow;
00480         flow.source = outer_it->first;
00481         for (FlowStat::SharesMap::const_iterator inner_it(shares->begin()); inner_it != shares->end(); ++inner_it) {
00482           flow.via = inner_it->second;
00483           flow.share = inner_it->first - sum_shares;
00484           sum_shares = inner_it->first;
00485           assert(flow.share > 0);
00486           SlObject(&flow, _flow_desc);
00487         }
00488       }
00489       for (StationCargoPacketMap::ConstMapIterator it(st->goods[i].cargo.Packets()->begin()); it != st->goods[i].cargo.Packets()->end(); ++it) {
00490         SlObject(const_cast<StationCargoPacketMap::value_type *>(&(*it)), _cargo_list_desc);
00491       }
00492     }
00493   }
00494 
00495   for (uint i = 0; i < bst->num_specs; i++) {
00496     SlObject(&bst->speclist[i], _station_speclist_desc);
00497   }
00498 }
00499 
00500 static void Save_STNN()
00501 {
00502   BaseStation *st;
00503   /* Write the stations */
00504   FOR_ALL_BASE_STATIONS(st) {
00505     SlSetArrayIndex(st->index);
00506     SlAutolength((AutolengthProc*)RealSave_STNN, st);
00507   }
00508 }
00509 
00510 static void Load_STNN()
00511 {
00512   int index;
00513 
00514   while ((index = SlIterateArray()) != -1) {
00515     bool waypoint = (SlReadByte() & FACIL_WAYPOINT) != 0;
00516 
00517     BaseStation *bst = waypoint ? (BaseStation *)new (index) Waypoint() : new (index) Station();
00518     SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00519 
00520     if (!waypoint) {
00521       Station *st = Station::From(bst);
00522 
00523       /* Before savegame version 161, persistent storages were not stored in a pool. */
00524       if (IsSavegameVersionBefore(161) && !IsSavegameVersionBefore(145) && st->facilities & FACIL_AIRPORT) {
00525         /* Store the old persistent storage. The GRFID will be added later. */
00526         assert(PersistentStorage::CanAllocateItem());
00527         st->airport.psa = new PersistentStorage(0);
00528         memcpy(st->airport.psa->storage, _old_st_persistent_storage.storage, sizeof(st->airport.psa->storage));
00529       }
00530 
00531       for (CargoID i = 0; i < NUM_CARGO; i++) {
00532         SlObject(&st->goods[i], GetGoodsDesc());
00533         FlowSaveLoad flow;
00534         FlowStat *fs = NULL;
00535         StationID prev_source = INVALID_STATION;
00536         for (uint32 j = 0; j < _num_flows; ++j) {
00537           SlObject(&flow, _flow_desc);
00538           if (fs == NULL || prev_source != flow.source) {
00539             fs = &(st->goods[i].flows.insert(std::make_pair(flow.source, FlowStat(flow.via, flow.share))).first->second);
00540           } else {
00541             fs->AppendShare(flow.via, flow.share);
00542           }
00543           prev_source = flow.source;
00544         }
00545         if (IsSavegameVersionBefore(SL_CARGOMAP)) {
00546           SwapPackets(&st->goods[i]);
00547         } else {
00548           StationCargoPair pair;
00549           for (uint j = 0; j < _num_dests; ++j) {
00550             SlObject(&pair, _cargo_list_desc);
00551             const_cast<StationCargoPacketMap &>(*(st->goods[i].cargo.Packets()))[pair.first].swap(pair.second);
00552             assert(pair.second.empty());
00553           }
00554         }
00555       }
00556     }
00557 
00558     if (bst->num_specs != 0) {
00559       /* Allocate speclist memory when loading a game */
00560       bst->speclist = CallocT<StationSpecList>(bst->num_specs);
00561       for (uint i = 0; i < bst->num_specs; i++) {
00562         SlObject(&bst->speclist[i], _station_speclist_desc);
00563       }
00564     }
00565   }
00566 }
00567 
00568 static void Ptrs_STNN()
00569 {
00570   /* Don't run when savegame version lower than 123. */
00571   if (IsSavegameVersionBefore(123)) return;
00572 
00573   Station *st;
00574   FOR_ALL_STATIONS(st) {
00575     for (CargoID i = 0; i < NUM_CARGO; i++) {
00576       GoodsEntry *ge = &st->goods[i];
00577       if (IsSavegameVersionBefore(SL_CARGOMAP)) {
00578         SwapPackets(ge);
00579         SlObject(ge, GetGoodsDesc());
00580         SwapPackets(ge);
00581       } else {
00582         SlObject(ge, GetGoodsDesc());
00583         for (StationCargoPacketMap::ConstMapIterator it = ge->cargo.Packets()->begin(); it != ge->cargo.Packets()->end(); ++it) {
00584           SlObject(const_cast<StationCargoPair *>(&(*it)), _cargo_list_desc);
00585         }
00586       }
00587     }
00588     SlObject(st, _station_desc);
00589   }
00590 
00591   Waypoint *wp;
00592   FOR_ALL_WAYPOINTS(wp) {
00593     SlObject(wp, _waypoint_desc);
00594   }
00595 }
00596 
00597 static void Save_ROADSTOP()
00598 {
00599   RoadStop *rs;
00600 
00601   FOR_ALL_ROADSTOPS(rs) {
00602     SlSetArrayIndex(rs->index);
00603     SlObject(rs, _roadstop_desc);
00604   }
00605 }
00606 
00607 static void Load_ROADSTOP()
00608 {
00609   int index;
00610 
00611   while ((index = SlIterateArray()) != -1) {
00612     RoadStop *rs = new (index) RoadStop(INVALID_TILE);
00613 
00614     SlObject(rs, _roadstop_desc);
00615   }
00616 }
00617 
00618 static void Ptrs_ROADSTOP()
00619 {
00620   RoadStop *rs;
00621   FOR_ALL_ROADSTOPS(rs) {
00622     SlObject(rs, _roadstop_desc);
00623   }
00624 }
00625 
00626 extern const ChunkHandler _station_chunk_handlers[] = {
00627   { 'STNS', NULL,          Load_STNS,     Ptrs_STNS,     NULL, CH_ARRAY },
00628   { 'STNN', Save_STNN,     Load_STNN,     Ptrs_STNN,     NULL, CH_ARRAY },
00629   { 'ROAD', Save_ROADSTOP, Load_ROADSTOP, Ptrs_ROADSTOP, NULL, CH_ARRAY | CH_LAST},
00630 };