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     StationUpdateAnimTriggers(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, 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 uint16 _num_links;
00228 static uint32 _num_flows;
00229 static uint16 _cargo_source;
00230 static uint32 _cargo_source_xy;
00231 static uint8  _cargo_days;
00232 static Money  _cargo_feeder_share;
00233 
00234 static const SaveLoad _station_speclist_desc[] = {
00235   SLE_CONDVAR(StationSpecList, grfid,    SLE_UINT32, 27, SL_MAX_VERSION),
00236   SLE_CONDVAR(StationSpecList, localidx, SLE_UINT8,  27, SL_MAX_VERSION),
00237 
00238   SLE_END()
00239 };
00240 
00241 static StationID _station_id;
00242 
00248 const SaveLoad *GetLinkStatDesc()
00249 {
00250   static const SaveLoad linkstat_desc[] = {
00251     SLEG_CONDVAR(             _station_id,         SLE_UINT16,      SL_CAPACITIES, SL_MAX_VERSION),
00252      SLE_CONDVAR(LinkStat,    length,              SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00253      SLE_CONDVAR(LinkStat,    capacity,            SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00254      SLE_CONDVAR(LinkStat,    frozen,              SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00255      SLE_CONDVAR(LinkStat,    usage,               SLE_UINT32,      SL_CAPACITIES, SL_MAX_VERSION),
00256      SLE_END()
00257   };
00258   
00259   return linkstat_desc;
00260 }
00261 
00267 const SaveLoad *GetFlowStatDesc()
00268 {
00269   static const SaveLoad _flowstat_desc[] = {
00270     SLEG_CONDVAR(             _station_id,         SLE_UINT16,         SL_FLOWMAP, SL_MAX_VERSION),
00271      SLE_CONDVAR(FlowStat,    via,                 SLE_UINT16,         SL_FLOWMAP, SL_MAX_VERSION),
00272      SLE_CONDVAR(FlowStat,    length,              SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00273      SLE_CONDVAR(FlowStat,    planned,             SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00274      SLE_CONDVAR(FlowStat,    sent,                SLE_UINT32,         SL_FLOWMAP, SL_MAX_VERSION),
00275      SLE_END()
00276   };
00277 
00278   return _flowstat_desc;
00279 }
00280 
00281 std::list<CargoPacket *> _packets;
00282 uint32 _num_dests;
00283 
00289 const SaveLoad *GetGoodsDesc()
00290 {
00291   static const SaveLoad goods_desc[] = {
00292     SLEG_CONDVAR(            _waiting_acceptance, SLE_UINT16,                  0, 67),
00293      SLE_CONDVAR(GoodsEntry, acceptance_pickup,   SLE_UINT8,                  68, SL_MAX_VERSION),
00294     SLE_CONDNULL(2,                                                           51, 67),
00295          SLE_VAR(GoodsEntry, days_since_pickup,   SLE_UINT8),
00296          SLE_VAR(GoodsEntry, rating,              SLE_UINT8),
00297     SLEG_CONDVAR(            _cargo_source,       SLE_FILE_U8 | SLE_VAR_U16,   0, 6),
00298     SLEG_CONDVAR(            _cargo_source,       SLE_UINT16,                  7, 67),
00299     SLEG_CONDVAR(            _cargo_source_xy,    SLE_UINT32,                 44, 67),
00300     SLEG_CONDVAR(            _cargo_days,         SLE_UINT8,                   0, 67),
00301          SLE_VAR(GoodsEntry, last_speed,          SLE_UINT8),
00302          SLE_VAR(GoodsEntry, last_age,            SLE_UINT8),
00303     SLEG_CONDVAR(            _cargo_feeder_share, SLE_FILE_U32 | SLE_VAR_I64, 14, 64),
00304     SLEG_CONDVAR(            _cargo_feeder_share, SLE_INT64,                  65, 67),
00305      SLE_CONDVAR(GoodsEntry, amount_fract,        SLE_UINT8,                 150, BEFORE_ADDING_PATCHES_SL),
00306      SLE_CONDVAR(GoodsEntry, amount_fract,        SLE_UINT8,                 KEEP_COMPATIBLE_5_SV, 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 const SaveLoad _station_desc[] = {
00435   SLE_WRITEBYTE(Station, facilities,                 FACIL_NONE),
00436   SLE_ST_INCLUDE(),
00437 
00438         SLE_VAR(Station, train_station.tile,         SLE_UINT32),
00439         SLE_VAR(Station, train_station.w,            SLE_FILE_U8 | SLE_VAR_U16),
00440         SLE_VAR(Station, train_station.h,            SLE_FILE_U8 | SLE_VAR_U16),
00441 
00442         SLE_REF(Station, bus_stops,                  REF_ROADSTOPS),
00443         SLE_REF(Station, truck_stops,                REF_ROADSTOPS),
00444         SLE_VAR(Station, dock_tile,                  SLE_UINT32),
00445         SLE_VAR(Station, airport.tile,               SLE_UINT32),
00446     SLE_CONDVAR(Station, airport.w,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00447     SLE_CONDVAR(Station, airport.h,                  SLE_FILE_U8 | SLE_VAR_U16, 140, SL_MAX_VERSION),
00448         SLE_VAR(Station, airport.type,               SLE_UINT8),
00449     SLE_CONDVAR(Station, airport.layout,             SLE_UINT8,                 145, SL_MAX_VERSION),
00450         SLE_VAR(Station, airport.flags,              SLE_UINT64),
00451     SLE_CONDVAR(Station, airport.rotation,           SLE_UINT8,                 145, SL_MAX_VERSION),
00452     SLE_CONDARR(Station, airport.psa.storage,        SLE_UINT32, 16,            145, SL_MAX_VERSION),
00453 
00454         SLE_VAR(Station, indtype,                    SLE_UINT8),
00455 
00456         SLE_VAR(Station, time_since_load,            SLE_UINT8),
00457         SLE_VAR(Station, time_since_unload,          SLE_UINT8),
00458         SLE_VAR(Station, last_vehicle_type,          SLE_UINT8),
00459         SLE_VAR(Station, had_vehicle_of_type,        SLE_UINT8),
00460         SLE_LST(Station, loading_vehicles,           REF_VEHICLE),
00461     SLE_CONDVAR(Station, always_accepted,            SLE_UINT32, 127, SL_MAX_VERSION),
00462 
00463         SLE_END()
00464 };
00465 
00466 static const SaveLoad _waypoint_desc[] = {
00467   SLE_WRITEBYTE(Waypoint, facilities,                FACIL_WAYPOINT),
00468   SLE_ST_INCLUDE(),
00469 
00470         SLE_VAR(Waypoint, town_cn,                   SLE_UINT16),
00471 
00472     SLE_CONDVAR(Waypoint, train_station.tile,        SLE_UINT32,                  124, SL_MAX_VERSION),
00473     SLE_CONDVAR(Waypoint, train_station.w,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00474     SLE_CONDVAR(Waypoint, train_station.h,           SLE_FILE_U8 | SLE_VAR_U16,   124, SL_MAX_VERSION),
00475 
00476         SLE_END()
00477 };
00478 
00483 const SaveLoad *GetBaseStationDescription()
00484 {
00485   return _base_station_desc;
00486 }
00487 
00488 static void RealSave_STNN(BaseStation *bst)
00489 {
00490   bool waypoint = (bst->facilities & FACIL_WAYPOINT) != 0;
00491   SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00492 
00493   if (!waypoint) {
00494     Station *st = Station::From(bst);
00495     for (CargoID c = 0; c < NUM_CARGO; c++) {
00496       _num_dests = (uint32)st->goods[c].cargo.Packets()->MapSize();
00497       _num_links = (uint16)st->goods[c].link_stats.size();
00498       _num_flows = 0;
00499       for (FlowStatMap::const_iterator it(st->goods[c].flows.begin()); it != st->goods[c].flows.end(); ++it) {
00500         _num_flows += (uint32)it->second.size();
00501       }
00502       SlObject(&st->goods[c], GetGoodsDesc());
00503       for (LinkStatMap::const_iterator it(st->goods[c].link_stats.begin()); it != st->goods[c].link_stats.end(); ++it) {
00504         _station_id = it->first;
00505         LinkStat ls(it->second); // make a copy to avoid constness problems
00506         SlObject(&ls, GetLinkStatDesc());
00507       }
00508       for (FlowStatMap::const_iterator outer_it(st->goods[c].flows.begin()); outer_it != st->goods[c].flows.end(); ++outer_it) {
00509         _station_id = outer_it->first;
00510         for (FlowStatSet::const_iterator inner_it(outer_it->second.begin()); inner_it != outer_it->second.end(); ++inner_it) {
00511           FlowStat fs(*inner_it); // make a copy to avoid constness problems
00512           SlObject(&fs, GetFlowStatDesc());
00513         }
00514       }
00515       for (StationCargoPacketMap::ConstMapIterator it(st->goods[c].cargo.Packets()->begin()); it != st->goods[c].cargo.Packets()->end(); ++it) {
00516         SlObject(const_cast<StationCargoPacketMap::value_type *>(&(*it)), _cargo_list_desc);
00517       }
00518     }
00519   }
00520 
00521   for (uint i = 0; i < bst->num_specs; i++) {
00522     SlObject(&bst->speclist[i], _station_speclist_desc);
00523   }
00524 }
00525 
00526 static void Save_STNN()
00527 {
00528   BaseStation *st;
00529   /* Write the stations */
00530   FOR_ALL_BASE_STATIONS(st) {
00531     SlSetArrayIndex(st->index);
00532     SlAutolength((AutolengthProc*)RealSave_STNN, st);
00533   }
00534 }
00535 
00536 static void Load_STNN()
00537 {
00538   int index;
00539 
00540   while ((index = SlIterateArray()) != -1) {
00541     bool waypoint = (SlReadByte() & FACIL_WAYPOINT) != 0;
00542 
00543     BaseStation *bst = waypoint ? (BaseStation *)new (index) Waypoint() : new (index) Station();
00544     SlObject(bst, waypoint ? _waypoint_desc : _station_desc);
00545 
00546     if (!waypoint) {
00547       Station *st = Station::From(bst);
00548       for (CargoID c = 0; c < NUM_CARGO; c++) {
00549         SlObject(&st->goods[c], GetGoodsDesc());
00550         LinkStat ls;
00551         for (uint16 i = 0; i < _num_links; ++i) {
00552           SlObject(&ls, GetLinkStatDesc());
00553           assert(!ls.IsNull());
00554           st->goods[c].link_stats[_station_id] = ls;
00555         }
00556         FlowStat fs;
00557         for (uint32 i = 0; i < _num_flows; ++i) {
00558           SlObject(&fs, GetFlowStatDesc());
00559           st->goods[c].flows[_station_id].insert(fs);
00560         }
00561         if (IsSavegameVersionBefore(SL_CARGOMAP -1)) {
00562           SwapPackets(&st->goods[c]);
00563         } else {
00564           StationCargoPair pair;
00565           for (uint i = 0; i < _num_dests; ++i) {
00566             SlObject(&pair, _cargo_list_desc);
00567             const_cast<StationCargoPacketMap &>(*(st->goods[c].cargo.Packets()))[pair.first].swap(pair.second);
00568             assert(pair.second.empty());
00569           }
00570         }
00571       }
00572     }
00573 
00574     if (bst->num_specs != 0) {
00575       /* Allocate speclist memory when loading a game */
00576       bst->speclist = CallocT<StationSpecList>(bst->num_specs);
00577       for (uint i = 0; i < bst->num_specs; i++) {
00578         SlObject(&bst->speclist[i], _station_speclist_desc);
00579       }
00580     }
00581   }
00582 }
00583 
00584 static void Ptrs_STNN()
00585 {
00586   /* Don't run when savegame version lower than 123. */
00587   if (IsSavegameVersionBefore(123)) return;
00588 
00589   Station *st;
00590   FOR_ALL_STATIONS(st) {
00591     for (CargoID i = 0; i < NUM_CARGO; i++) {
00592       GoodsEntry *ge = &st->goods[i];
00593       if (IsSavegameVersionBefore(SL_CARGOMAP)) {
00594         SwapPackets(ge);
00595         SlObject(ge, GetGoodsDesc());
00596         SwapPackets(ge);
00597       } else {
00598         SlObject(ge, GetGoodsDesc());
00599         for (StationCargoPacketMap::ConstMapIterator it = ge->cargo.Packets()->begin(); it != ge->cargo.Packets()->end(); ++it) {
00600           SlObject(const_cast<StationCargoPair *>(&(*it)), _cargo_list_desc);
00601         }
00602       }
00603     }
00604     SlObject(st, _station_desc);
00605   }
00606 
00607   Waypoint *wp;
00608   FOR_ALL_WAYPOINTS(wp) {
00609     SlObject(wp, _waypoint_desc);
00610   }
00611 }
00612 
00613 static void Save_ROADSTOP()
00614 {
00615   RoadStop *rs;
00616 
00617   FOR_ALL_ROADSTOPS(rs) {
00618     SlSetArrayIndex(rs->index);
00619     SlObject(rs, _roadstop_desc);
00620   }
00621 }
00622 
00623 static void Load_ROADSTOP()
00624 {
00625   int index;
00626 
00627   while ((index = SlIterateArray()) != -1) {
00628     RoadStop *rs = new (index) RoadStop(INVALID_TILE);
00629 
00630     SlObject(rs, _roadstop_desc);
00631   }
00632 }
00633 
00634 static void Ptrs_ROADSTOP()
00635 {
00636   RoadStop *rs;
00637   FOR_ALL_ROADSTOPS(rs) {
00638     SlObject(rs, _roadstop_desc);
00639   }
00640 }
00641 
00642 extern const ChunkHandler _station_chunk_handlers[] = {
00643   { 'STNS', NULL,          Load_STNS,     Ptrs_STNS,     NULL, CH_ARRAY },
00644   { 'STNN', Save_STNN,     Load_STNN,     Ptrs_STNN,     NULL, CH_ARRAY },
00645   { 'ROAD', Save_ROADSTOP, Load_ROADSTOP, Ptrs_ROADSTOP, NULL, CH_ARRAY | CH_LAST},
00646 };