vehicle_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 "../vehicle_func.h"
00014 #include "../train.h"
00015 #include "../roadveh.h"
00016 #include "../ship.h"
00017 #include "../aircraft.h"
00018 #include "../station_base.h"
00019 #include "../effectvehicle_base.h"
00020 
00021 #include "saveload.h"
00022 
00023 #include <map>
00024 
00029 void ConnectMultiheadedTrains()
00030 {
00031   Train *v;
00032 
00033   FOR_ALL_TRAINS(v) {
00034     v->other_multiheaded_part = NULL;
00035   }
00036 
00037   FOR_ALL_TRAINS(v) {
00038     if (v->IsFrontEngine() || v->IsFreeWagon()) {
00039       /* Two ways to associate multiheaded parts to each other:
00040        * sequential-matching: Trains shall be arranged to look like <..>..<..>..<..>..
00041        * bracket-matching:    Free vehicle chains shall be arranged to look like ..<..<..>..<..>..>..
00042        *
00043        * Note: Old savegames might contain chains which do not comply with these rules, e.g.
00044        *   - the front and read parts have invalid orders
00045        *   - different engine types might be combined
00046        *   - there might be different amounts of front and rear parts.
00047        *
00048        * Note: The multiheaded parts need to be matched exactly like they are matched on the server, else desyncs will occur.
00049        *   This is why two matching strategies are needed.
00050        */
00051 
00052       bool sequential_matching = v->IsFrontEngine();
00053 
00054       for (Train *u = v; u != NULL; u = u->GetNextVehicle()) {
00055         if (u->other_multiheaded_part != NULL) continue; // we already linked this one
00056 
00057         if (u->IsMultiheaded()) {
00058           if (!u->IsEngine()) {
00059             /* we got a rear car without a front car. We will convert it to a front one */
00060             u->SetEngine();
00061             u->spritenum--;
00062           }
00063 
00064           /* Find a matching back part */
00065           EngineID eid = u->engine_type;
00066           Train *w;
00067           if (sequential_matching) {
00068             for (w = u->GetNextVehicle(); w != NULL; w = w->GetNextVehicle()) {
00069               if (w->engine_type != eid || w->other_multiheaded_part != NULL || !w->IsMultiheaded()) continue;
00070 
00071               /* we found a car to partner with this engine. Now we will make sure it face the right way */
00072               if (w->IsEngine()) {
00073                 w->ClearEngine();
00074                 w->spritenum++;
00075               }
00076               break;
00077             }
00078           } else {
00079             uint stack_pos = 0;
00080             for (w = u->GetNextVehicle(); w != NULL; w = w->GetNextVehicle()) {
00081               if (w->engine_type != eid || w->other_multiheaded_part != NULL || !w->IsMultiheaded()) continue;
00082 
00083               if (w->IsEngine()) {
00084                 stack_pos++;
00085               } else {
00086                 if (stack_pos == 0) break;
00087                 stack_pos--;
00088               }
00089             }
00090           }
00091 
00092           if (w != NULL) {
00093             w->other_multiheaded_part = u;
00094             u->other_multiheaded_part = w;
00095           } else {
00096             /* we got a front car and no rear cars. We will fake this one for forget that it should have been multiheaded */
00097             u->ClearMultiheaded();
00098           }
00099         }
00100       }
00101     }
00102   }
00103 }
00104 
00109 void ConvertOldMultiheadToNew()
00110 {
00111   Train *t;
00112   FOR_ALL_TRAINS(t) SetBit(t->subtype, 7); // indicates that it's the old format and needs to be converted in the next loop
00113 
00114   FOR_ALL_TRAINS(t) {
00115     if (HasBit(t->subtype, 7) && ((t->subtype & ~0x80) == 0 || (t->subtype & ~0x80) == 4)) {
00116       for (Train *u = t; u != NULL; u = u->Next()) {
00117         const RailVehicleInfo *rvi = RailVehInfo(u->engine_type);
00118 
00119         ClrBit(u->subtype, 7);
00120         switch (u->subtype) {
00121           case 0: // TS_Front_Engine
00122             if (rvi->railveh_type == RAILVEH_MULTIHEAD) u->SetMultiheaded();
00123             u->SetFrontEngine();
00124             u->SetEngine();
00125             break;
00126 
00127           case 1: // TS_Artic_Part
00128             u->subtype = 0;
00129             u->SetArticulatedPart();
00130             break;
00131 
00132           case 2: // TS_Not_First
00133             u->subtype = 0;
00134             if (rvi->railveh_type == RAILVEH_WAGON) {
00135               /* normal wagon */
00136               u->SetWagon();
00137               break;
00138             }
00139             if (rvi->railveh_type == RAILVEH_MULTIHEAD && rvi->image_index == u->spritenum - 1) {
00140               /* rear end of a multiheaded engine */
00141               u->SetMultiheaded();
00142               break;
00143             }
00144             if (rvi->railveh_type == RAILVEH_MULTIHEAD) u->SetMultiheaded();
00145             u->SetEngine();
00146             break;
00147 
00148           case 4: // TS_Free_Car
00149             u->subtype = 0;
00150             u->SetWagon();
00151             u->SetFreeWagon();
00152             break;
00153           default: SlErrorCorrupt("Invalid train subtype");
00154         }
00155       }
00156     }
00157   }
00158 }
00159 
00160 
00162 void UpdateOldAircraft()
00163 {
00164   /* set airport_flags to 0 for all airports just to be sure */
00165   Station *st;
00166   FOR_ALL_STATIONS(st) {
00167     st->airport.flags = 0; // reset airport
00168   }
00169 
00170   Aircraft *a;
00171   FOR_ALL_AIRCRAFT(a) {
00172     /* airplane has another vehicle with subtype 4 (shadow), helicopter also has 3 (rotor)
00173      * skip those */
00174     if (a->IsNormalAircraft()) {
00175       /* airplane in terminal stopped doesn't hurt anyone, so goto next */
00176       if ((a->vehstatus & VS_STOPPED) && a->state == 0) {
00177         a->state = HANGAR;
00178         continue;
00179       }
00180 
00181       AircraftLeaveHangar(a, a->direction); // make airplane visible if it was in a depot for example
00182       a->vehstatus &= ~VS_STOPPED; // make airplane moving
00183       UpdateAircraftCache(a);
00184       a->cur_speed = a->vcache.cached_max_speed; // so aircraft don't have zero speed while in air
00185       if (!a->current_order.IsType(OT_GOTO_STATION) && !a->current_order.IsType(OT_GOTO_DEPOT)) {
00186         /* reset current order so aircraft doesn't have invalid "station-only" order */
00187         a->current_order.MakeDummy();
00188       }
00189       a->state = FLYING;
00190       AircraftNextAirportPos_and_Order(a); // move it to the entry point of the airport
00191       GetNewVehiclePosResult gp = GetNewVehiclePos(a);
00192       a->tile = 0; // aircraft in air is tile=0
00193 
00194       /* correct speed of helicopter-rotors */
00195       if (a->subtype == AIR_HELICOPTER) a->Next()->Next()->cur_speed = 32;
00196 
00197       /* set new position x,y,z */
00198       SetAircraftPosition(a, gp.x, gp.y, GetAircraftFlyingAltitude(a));
00199     }
00200   }
00201 }
00202 
00210 static void CheckValidVehicles()
00211 {
00212   size_t total_engines = Engine::GetPoolSize();
00213   EngineID first_engine[4] = { INVALID_ENGINE, INVALID_ENGINE, INVALID_ENGINE, INVALID_ENGINE };
00214 
00215   Engine *e;
00216   FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) { first_engine[VEH_TRAIN] = e->index; break; }
00217   FOR_ALL_ENGINES_OF_TYPE(e, VEH_ROAD) { first_engine[VEH_ROAD] = e->index; break; }
00218   FOR_ALL_ENGINES_OF_TYPE(e, VEH_SHIP) { first_engine[VEH_SHIP] = e->index; break; }
00219   FOR_ALL_ENGINES_OF_TYPE(e, VEH_AIRCRAFT) { first_engine[VEH_AIRCRAFT] = e->index; break; }
00220 
00221   Vehicle *v;
00222   FOR_ALL_VEHICLES(v) {
00223     /* Test if engine types match */
00224     switch (v->type) {
00225       case VEH_TRAIN:
00226       case VEH_ROAD:
00227       case VEH_SHIP:
00228       case VEH_AIRCRAFT:
00229         if (v->engine_type >= total_engines || v->type != v->GetEngine()->type) {
00230           v->engine_type = first_engine[v->type];
00231         }
00232         break;
00233 
00234       default:
00235         break;
00236     }
00237   }
00238 }
00239 
00240 extern byte _age_cargo_skip_counter; // From misc_sl.cpp
00241 
00243 void AfterLoadVehicles(bool part_of_load)
00244 {
00245   Vehicle *v;
00246 
00247   FOR_ALL_VEHICLES(v) {
00248     /* Reinstate the previous pointer */
00249     if (v->Next() != NULL) v->Next()->previous = v;
00250     if (v->NextShared() != NULL) v->NextShared()->previous_shared = v;
00251 
00252     if (part_of_load) v->fill_percent_te_id = INVALID_TE_ID;
00253     v->first = NULL;
00254     if (v->IsGroundVehicle()) v->GetGroundVehicleCache()->first_engine = INVALID_ENGINE;
00255   }
00256 
00257   /* AfterLoadVehicles may also be called in case of NewGRF reload, in this
00258    * case we may not convert orders again. */
00259   if (part_of_load) {
00260     /* Create shared vehicle chain for very old games (pre 5,2) and create
00261      * OrderList from shared vehicle chains. For this to work correctly, the
00262      * following conditions must be fulfilled:
00263      * a) both next_shared and previous_shared are not set for pre 5,2 games
00264      * b) both next_shared and previous_shared are set for later games
00265      */
00266     std::map<Order*, OrderList*> mapping;
00267 
00268     FOR_ALL_VEHICLES(v) {
00269       if (v->orders.old != NULL) {
00270         if (IsSavegameVersionBefore(105)) { // Pre-105 didn't save an OrderList
00271           if (mapping[v->orders.old] == NULL) {
00272             /* This adds the whole shared vehicle chain for case b */
00273 
00274             /* Creating an OrderList here is safe because the number of vehicles
00275              * allowed in these savegames matches the number of OrderLists. As
00276              * such each vehicle can get an OrderList and it will (still) fit. */
00277             assert(OrderList::CanAllocateItem());
00278             v->orders.list = mapping[v->orders.old] = new OrderList(v->orders.old, v);
00279           } else {
00280             v->orders.list = mapping[v->orders.old];
00281             /* For old games (case a) we must create the shared vehicle chain */
00282             if (IsSavegameVersionBefore(5, 2)) {
00283               v->AddToShared(v->orders.list->GetFirstSharedVehicle());
00284             }
00285           }
00286         } else { // OrderList was saved as such, only recalculate not saved values
00287           if (v->PreviousShared() == NULL) {
00288             v->orders.list->Initialize(v->orders.list->first, v);
00289           }
00290         }
00291       }
00292     }
00293   }
00294 
00295   FOR_ALL_VEHICLES(v) {
00296     /* Fill the first pointers */
00297     if (v->Previous() == NULL) {
00298       for (Vehicle *u = v; u != NULL; u = u->Next()) {
00299         u->first = v;
00300       }
00301     }
00302   }
00303 
00304   if (part_of_load) {
00305     if (IsSavegameVersionBefore(105)) {
00306       /* Before 105 there was no order for shared orders, thus it messed up horribly */
00307       FOR_ALL_VEHICLES(v) {
00308         if (v->First() != v || v->orders.list != NULL || v->previous_shared != NULL || v->next_shared == NULL) continue;
00309 
00310         /* As above, allocating OrderList here is safe. */
00311         assert(OrderList::CanAllocateItem());
00312         v->orders.list = new OrderList(NULL, v);
00313         for (Vehicle *u = v; u != NULL; u = u->next_shared) {
00314           u->orders.list = v->orders.list;
00315         }
00316       }
00317     }
00318 
00319     if (IsSavegameVersionBefore(157)) {
00320       /* The road vehicle subtype was converted to a flag. */
00321       RoadVehicle *rv;
00322       FOR_ALL_ROADVEHICLES(rv) {
00323         if (rv->subtype == 0) {
00324           /* The road vehicle is at the front. */
00325           rv->SetFrontEngine();
00326         } else if (rv->subtype == 1) {
00327           /* The road vehicle is an articulated part. */
00328           rv->subtype = 0;
00329           rv->SetArticulatedPart();
00330         } else {
00331           SlErrorCorrupt("Invalid road vehicle subtype");
00332         }
00333       }
00334     }
00335 
00336     if (IsSavegameVersionBefore(160)) {
00337       /* In some old savegames there might be some "crap" stored. */
00338       FOR_ALL_VEHICLES(v) {
00339         if (!v->IsPrimaryVehicle() && v->type != VEH_DISASTER) {
00340           v->current_order.Free();
00341           v->unitnumber = 0;
00342         }
00343       }
00344     }
00345 
00346     if (IsSavegameVersionBefore(162)) {
00347       /* Set the vehicle-local cargo age counter from the old global counter. */
00348       FOR_ALL_VEHICLES(v) {
00349         v->cargo_age_counter = _age_cargo_skip_counter;
00350       }
00351     }
00352   }
00353 
00354   CheckValidVehicles();
00355 
00356   FOR_ALL_VEHICLES(v) {
00357     assert(v->first != NULL);
00358 
00359     switch (v->type) {
00360       case VEH_TRAIN: {
00361         Train *t = Train::From(v);
00362         if (t->IsFrontEngine() || t->IsFreeWagon()) {
00363           t->gcache.last_speed = t->cur_speed; // update displayed train speed
00364           t->ConsistChanged(false);
00365         }
00366         break;
00367       }
00368 
00369       case VEH_ROAD: {
00370         RoadVehicle *rv = RoadVehicle::From(v);
00371         if (rv->IsFrontEngine()) {
00372           rv->gcache.last_speed = rv->cur_speed; // update displayed road vehicle speed
00373           RoadVehUpdateCache(rv);
00374           if (_settings_game.vehicle.roadveh_acceleration_model != AM_ORIGINAL) {
00375             rv->CargoChanged();
00376           }
00377         }
00378         break;
00379       }
00380 
00381       case VEH_SHIP:
00382         Ship::From(v)->UpdateCache();
00383         break;
00384 
00385       default: break;
00386     }
00387   }
00388 
00389   /* Stop non-front engines */
00390   if (part_of_load && IsSavegameVersionBefore(112)) {
00391     FOR_ALL_VEHICLES(v) {
00392       if (v->type == VEH_TRAIN) {
00393         Train *t = Train::From(v);
00394         if (!t->IsFrontEngine()) {
00395           if (t->IsEngine()) t->vehstatus |= VS_STOPPED;
00396           /* cur_speed is now relevant for non-front parts - nonzero breaks
00397            * moving-wagons-inside-depot- and autoreplace- code */
00398           t->cur_speed = 0;
00399         }
00400       }
00401       /* trains weren't stopping gradually in old OTTD versions (and TTO/TTD)
00402        * other vehicle types didn't have zero speed while stopped (even in 'recent' OTTD versions) */
00403       if ((v->vehstatus & VS_STOPPED) && (v->type != VEH_TRAIN || IsSavegameVersionBefore(2, 1))) {
00404         v->cur_speed = 0;
00405       }
00406     }
00407   }
00408 
00409   FOR_ALL_VEHICLES(v) {
00410     switch (v->type) {
00411       case VEH_ROAD: {
00412         RoadVehicle *rv = RoadVehicle::From(v);
00413         rv->roadtype = HasBit(EngInfo(v->First()->engine_type)->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD;
00414         rv->compatible_roadtypes = RoadTypeToRoadTypes(rv->roadtype);
00415         /* FALL THROUGH */
00416       }
00417 
00418       case VEH_TRAIN:
00419       case VEH_SHIP:
00420         v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
00421         break;
00422 
00423       case VEH_AIRCRAFT:
00424         if (Aircraft::From(v)->IsNormalAircraft()) {
00425           v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
00426 
00427           /* The plane's shadow will have the same image as the plane */
00428           Vehicle *shadow = v->Next();
00429           shadow->cur_image = v->cur_image;
00430 
00431           /* In the case of a helicopter we will update the rotor sprites */
00432           if (v->subtype == AIR_HELICOPTER) {
00433             Vehicle *rotor = shadow->Next();
00434             rotor->cur_image = GetRotorImage(Aircraft::From(v), EIT_ON_MAP);
00435           }
00436 
00437           UpdateAircraftCache(Aircraft::From(v), true);
00438         }
00439         break;
00440       default: break;
00441     }
00442 
00443     v->UpdateDeltaXY(v->direction);
00444     v->coord.left = INVALID_COORD;
00445     VehicleUpdatePosition(v);
00446     VehicleUpdateViewport(v, false);
00447   }
00448 }
00449 
00450 bool TrainController(Train *v, Vehicle *nomove, bool reverse = true); // From train_cmd.cpp
00451 void ReverseTrainDirection(Train *v);
00452 void ReverseTrainSwapVeh(Train *v, int l, int r);
00453 
00455 void FixupTrainLengths()
00456 {
00457   /* Vehicle center was moved from 4 units behind the front to half the length
00458    * behind the front. Move vehicles so they end up on the same spot. */
00459   Vehicle *v;
00460   FOR_ALL_VEHICLES(v) {
00461     if (v->type == VEH_TRAIN && v->IsPrimaryVehicle()) {
00462       /* The vehicle center is now more to the front depending on vehicle length,
00463        * so we need to move all vehicles forward to cover the difference to the
00464        * old center, otherwise wagon spacing in trains would be broken upon load. */
00465       for (Train *u = Train::From(v); u != NULL; u = u->Next()) {
00466         if (u->track == TRACK_BIT_DEPOT || (u->vehstatus & VS_CRASHED)) continue;
00467 
00468         Train *next = u->Next();
00469 
00470         /* Try to pull the vehicle half its length forward. */
00471         int diff = (VEHICLE_LENGTH - u->gcache.cached_veh_length) / 2;
00472         int done;
00473         for (done = 0; done < diff; done++) {
00474           if (!TrainController(u, next, false)) break;
00475         }
00476 
00477         if (next != NULL && done < diff && u->IsFrontEngine()) {
00478           /* Pulling the front vehicle forwards failed, we either encountered a dead-end
00479            * or a red signal. To fix this, we try to move the whole train the required
00480            * space backwards and re-do the fix up of the front vehicle. */
00481 
00482           /* Ignore any signals when backtracking. */
00483           TrainForceProceeding old_tfp = u->force_proceed;
00484           u->force_proceed = TFP_SIGNAL;
00485 
00486           /* Swap start<>end, start+1<>end-1, ... */
00487           int r = CountVehiclesInChain(u) - 1; // number of vehicles - 1
00488           int l = 0;
00489           do ReverseTrainSwapVeh(u, l++, r--); while (l <= r);
00490 
00491           /* We moved the first vehicle which is now the last. Move it back to the
00492            * original position as we will fix up the last vehicle later in the loop. */
00493           for (int i = 0; i < done; i++) TrainController(u->Last(), NULL);
00494 
00495           /* Move the train backwards to get space for the first vehicle. As the stopping
00496            * distance from a line end is rounded up, move the train one unit more to cater
00497            * for front vehicles with odd lengths. */
00498           int moved;
00499           for (moved = 0; moved < diff + 1; moved++) {
00500             if (!TrainController(u, NULL, false)) break;
00501           }
00502 
00503           /* Swap start<>end, start+1<>end-1, ... again. */
00504           r = CountVehiclesInChain(u) - 1; // number of vehicles - 1
00505           l = 0;
00506           do ReverseTrainSwapVeh(u, l++, r--); while (l <= r);
00507 
00508           u->force_proceed = old_tfp;
00509 
00510           /* Tracks are too short to fix the train length. The player has to fix the
00511            * train in a depot. Bail out so we don't damage the vehicle chain any more. */
00512           if (moved < diff + 1) break;
00513 
00514           /* Re-do the correction for the first vehicle. */
00515           for (done = 0; done < diff; done++) TrainController(u, next, false);
00516 
00517           /* We moved one unit more backwards than needed for even-length front vehicles,
00518            * try to move that unit forward again. We don't care if this step fails. */
00519           TrainController(u, NULL, false);
00520         }
00521 
00522         /* If the next wagon is still in a depot, check if it shouldn't be outside already. */
00523         if (next != NULL && next->track == TRACK_BIT_DEPOT) {
00524           int d = TicksToLeaveDepot(u);
00525           if (d <= 0) {
00526             /* Next vehicle should have left the depot already, show it and pull forward. */
00527             next->vehstatus &= ~VS_HIDDEN;
00528             next->track = TrackToTrackBits(GetRailDepotTrack(next->tile));
00529             for (int i = 0; i >= d; i--) TrainController(next, NULL);
00530           }
00531         }
00532       }
00533     }
00534   }
00535 }
00536 
00537 static uint8  _cargo_days;
00538 static uint16 _cargo_source;
00539 static uint32 _cargo_source_xy;
00540 static uint16 _cargo_count;
00541 static uint16 _cargo_paid_for;
00542 static Money  _cargo_feeder_share;
00543 static uint32 _cargo_loaded_at_xy;
00544 
00550 const SaveLoad *GetVehicleDescription(VehicleType vt)
00551 {
00553   static const SaveLoad _common_veh_desc[] = {
00554          SLE_VAR(Vehicle, subtype,               SLE_UINT8),
00555 
00556          SLE_REF(Vehicle, next,                  REF_VEHICLE_OLD),
00557      SLE_CONDVAR(Vehicle, name,                  SLE_NAME,                     0,  83),
00558      SLE_CONDSTR(Vehicle, name,                  SLE_STR | SLF_ALLOW_CONTROL, 0, 84, SL_MAX_VERSION),
00559      SLE_CONDVAR(Vehicle, unitnumber,            SLE_FILE_U8  | SLE_VAR_U16,   0,   7),
00560      SLE_CONDVAR(Vehicle, unitnumber,            SLE_UINT16,                   8, SL_MAX_VERSION),
00561          SLE_VAR(Vehicle, owner,                 SLE_UINT8),
00562      SLE_CONDVAR(Vehicle, tile,                  SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00563      SLE_CONDVAR(Vehicle, tile,                  SLE_UINT32,                   6, SL_MAX_VERSION),
00564      SLE_CONDVAR(Vehicle, dest_tile,             SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00565      SLE_CONDVAR(Vehicle, dest_tile,             SLE_UINT32,                   6, SL_MAX_VERSION),
00566 
00567      SLE_CONDVAR(Vehicle, x_pos,                 SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00568      SLE_CONDVAR(Vehicle, x_pos,                 SLE_UINT32,                   6, SL_MAX_VERSION),
00569      SLE_CONDVAR(Vehicle, y_pos,                 SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00570      SLE_CONDVAR(Vehicle, y_pos,                 SLE_UINT32,                   6, SL_MAX_VERSION),
00571      SLE_CONDVAR(Vehicle, z_pos,                 SLE_FILE_U8  | SLE_VAR_I32,   0, 163),
00572      SLE_CONDVAR(Vehicle, z_pos,                 SLE_INT32,                  164, SL_MAX_VERSION),
00573          SLE_VAR(Vehicle, direction,             SLE_UINT8),
00574 
00575     SLE_CONDNULL(2,                                                            0,  57),
00576          SLE_VAR(Vehicle, spritenum,             SLE_UINT8),
00577     SLE_CONDNULL(5,                                                            0,  57),
00578          SLE_VAR(Vehicle, engine_type,           SLE_UINT16),
00579 
00580     SLE_CONDNULL(2,                                                            0,  151),
00581          SLE_VAR(Vehicle, cur_speed,             SLE_UINT16),
00582          SLE_VAR(Vehicle, subspeed,              SLE_UINT8),
00583          SLE_VAR(Vehicle, acceleration,          SLE_UINT8),
00584          SLE_VAR(Vehicle, progress,              SLE_UINT8),
00585 
00586          SLE_VAR(Vehicle, vehstatus,             SLE_UINT8),
00587      SLE_CONDVAR(Vehicle, last_station_visited,  SLE_FILE_U8  | SLE_VAR_U16,   0,   4),
00588      SLE_CONDVAR(Vehicle, last_station_visited,  SLE_UINT16,                   5, SL_MAX_VERSION),
00589      SLE_CONDVAR(Vehicle, last_loading_station,  SLE_UINT16,       SL_CAPACITIES, SL_MAX_VERSION),
00590 
00591          SLE_VAR(Vehicle, cargo_type,            SLE_UINT8),
00592      SLE_CONDVAR(Vehicle, cargo_subtype,         SLE_UINT8,                   35, SL_MAX_VERSION),
00593     SLEG_CONDVAR(         _cargo_days,           SLE_UINT8,                    0,  67),
00594     SLEG_CONDVAR(         _cargo_source,         SLE_FILE_U8  | SLE_VAR_U16,   0,   6),
00595     SLEG_CONDVAR(         _cargo_source,         SLE_UINT16,                   7,  67),
00596     SLEG_CONDVAR(         _cargo_source_xy,      SLE_UINT32,                  44,  67),
00597          SLE_VAR(Vehicle, cargo_cap,             SLE_UINT16),
00598      SLE_CONDVAR(Vehicle, refit_cap,             SLE_UINT16,       SL_CAPACITIES, SL_MAX_VERSION),
00599     SLEG_CONDVAR(         _cargo_count,          SLE_UINT16,                   0,  67),
00600      SLE_CONDLST(Vehicle, cargo.packets,         REF_CARGO_PACKET,            68, SL_MAX_VERSION),
00601      SLE_CONDLST(Vehicle, cargo.reserved,        REF_CARGO_PACKET,SL_RESERVATION, SL_MAX_VERSION),
00602      SLE_CONDVAR(Vehicle, cargo_age_counter,     SLE_UINT16,                 162, SL_MAX_VERSION),
00603 
00604          SLE_VAR(Vehicle, day_counter,           SLE_UINT8),
00605          SLE_VAR(Vehicle, tick_counter,          SLE_UINT8),
00606      SLE_CONDVAR(Vehicle, running_ticks,         SLE_UINT8,                   88, SL_MAX_VERSION),
00607 
00608          SLE_VAR(Vehicle, cur_implicit_order_index,  SLE_UINT8),
00609      SLE_CONDVAR(Vehicle, cur_real_order_index,  SLE_UINT8,                  158, SL_MAX_VERSION),
00610     /* num_orders is now part of OrderList and is not saved but counted */
00611     SLE_CONDNULL(1,                                                            0, 104),
00612 
00613     /* This next line is for version 4 and prior compatibility.. it temporarily reads
00614      type and flags (which were both 4 bits) into type. Later on this is
00615      converted correctly */
00616      SLE_CONDVAR(Vehicle, current_order.type,    SLE_UINT8,                    0,   4),
00617      SLE_CONDVAR(Vehicle, current_order.dest,    SLE_FILE_U8  | SLE_VAR_U16,   0,   4),
00618 
00619     /* Orders for version 5 and on */
00620      SLE_CONDVAR(Vehicle, current_order.type,    SLE_UINT8,                    5, SL_MAX_VERSION),
00621      SLE_CONDVAR(Vehicle, current_order.flags,   SLE_UINT8,                    5, SL_MAX_VERSION),
00622      SLE_CONDVAR(Vehicle, current_order.dest,    SLE_UINT16,                   5, SL_MAX_VERSION),
00623 
00624     /* Refit in current order */
00625      SLE_CONDVAR(Vehicle, current_order.refit_cargo,   SLE_UINT8,             36, SL_MAX_VERSION),
00626      SLE_CONDVAR(Vehicle, current_order.refit_subtype, SLE_UINT8,             36, SL_MAX_VERSION),
00627 
00628     /* Timetable in current order */
00629      SLE_CONDVAR(Vehicle, current_order.wait_time,     SLE_UINT16,            67, SL_MAX_VERSION),
00630      SLE_CONDVAR(Vehicle, current_order.travel_time,   SLE_UINT16,            67, SL_MAX_VERSION),
00631      SLE_CONDVAR(Vehicle, timetable_start,       SLE_INT32,                  129, SL_MAX_VERSION),
00632 
00633      SLE_CONDREF(Vehicle, orders,                REF_ORDER,                    0, 104),
00634      SLE_CONDREF(Vehicle, orders,                REF_ORDERLIST,              105, SL_MAX_VERSION),
00635 
00636      SLE_CONDVAR(Vehicle, age,                   SLE_FILE_U16 | SLE_VAR_I32,   0,  30),
00637      SLE_CONDVAR(Vehicle, age,                   SLE_INT32,                   31, SL_MAX_VERSION),
00638      SLE_CONDVAR(Vehicle, max_age,               SLE_FILE_U16 | SLE_VAR_I32,   0,  30),
00639      SLE_CONDVAR(Vehicle, max_age,               SLE_INT32,                   31, SL_MAX_VERSION),
00640      SLE_CONDVAR(Vehicle, date_of_last_service,  SLE_FILE_U16 | SLE_VAR_I32,   0,  30),
00641      SLE_CONDVAR(Vehicle, date_of_last_service,  SLE_INT32,                   31, SL_MAX_VERSION),
00642      SLE_CONDVAR(Vehicle, service_interval,      SLE_FILE_U16 | SLE_VAR_I32,   0,  30),
00643      SLE_CONDVAR(Vehicle, service_interval,      SLE_INT32,                   31, SL_MAX_VERSION),
00644          SLE_VAR(Vehicle, reliability,           SLE_UINT16),
00645          SLE_VAR(Vehicle, reliability_spd_dec,   SLE_UINT16),
00646          SLE_VAR(Vehicle, breakdown_ctr,         SLE_UINT8),
00647          SLE_VAR(Vehicle, breakdown_delay,       SLE_UINT8),
00648          SLE_VAR(Vehicle, breakdowns_since_last_service, SLE_UINT8),
00649          SLE_VAR(Vehicle, breakdown_chance,      SLE_UINT8),
00650      SLE_CONDVAR(Vehicle, build_year,            SLE_FILE_U8 | SLE_VAR_I32,    0,  30),
00651      SLE_CONDVAR(Vehicle, build_year,            SLE_INT32,                   31, SL_MAX_VERSION),
00652 
00653          SLE_VAR(Vehicle, load_unload_ticks,     SLE_UINT16),
00654     SLEG_CONDVAR(         _cargo_paid_for,       SLE_UINT16,                  45, SL_MAX_VERSION),
00655      SLE_CONDVAR(Vehicle, vehicle_flags,         SLE_UINT8,                   40, SL_MAX_VERSION),
00656 
00657      SLE_CONDVAR(Vehicle, profit_this_year,      SLE_FILE_I32 | SLE_VAR_I64,   0,  64),
00658      SLE_CONDVAR(Vehicle, profit_this_year,      SLE_INT64,                   65, SL_MAX_VERSION),
00659      SLE_CONDVAR(Vehicle, profit_last_year,      SLE_FILE_I32 | SLE_VAR_I64,   0,  64),
00660      SLE_CONDVAR(Vehicle, profit_last_year,      SLE_INT64,                   65, SL_MAX_VERSION),
00661     SLEG_CONDVAR(         _cargo_feeder_share,   SLE_FILE_I32 | SLE_VAR_I64,  51,  64),
00662     SLEG_CONDVAR(         _cargo_feeder_share,   SLE_INT64,                   65,  67),
00663     SLEG_CONDVAR(         _cargo_loaded_at_xy,   SLE_UINT32,                  51,  67),
00664      SLE_CONDVAR(Vehicle, value,                 SLE_FILE_I32 | SLE_VAR_I64,   0,  64),
00665      SLE_CONDVAR(Vehicle, value,                 SLE_INT64,                   65, SL_MAX_VERSION),
00666 
00667      SLE_CONDVAR(Vehicle, random_bits,           SLE_UINT8,                    2, SL_MAX_VERSION),
00668      SLE_CONDVAR(Vehicle, waiting_triggers,      SLE_UINT8,                    2, SL_MAX_VERSION),
00669 
00670      SLE_CONDREF(Vehicle, next_shared,           REF_VEHICLE,                  2, SL_MAX_VERSION),
00671     SLE_CONDNULL(2,                                                            2,  68),
00672     SLE_CONDNULL(4,                                                           69, 100),
00673 
00674      SLE_CONDVAR(Vehicle, group_id,              SLE_UINT16,                  60, SL_MAX_VERSION),
00675 
00676      SLE_CONDVAR(Vehicle, current_order_time,    SLE_UINT32,                  67, SL_MAX_VERSION),
00677      SLE_CONDVAR(Vehicle, lateness_counter,      SLE_INT32,                   67, SL_MAX_VERSION),
00678 
00679     SLE_CONDNULL(10,                                                           2, 143), // old reserved space
00680 
00681          SLE_END()
00682   };
00683 
00684 
00685   static const SaveLoad _train_desc[] = {
00686     SLE_WRITEBYTE(Vehicle, type, VEH_TRAIN),
00687     SLE_VEH_INCLUDE(),
00688          SLE_VAR(Train, crash_anim_pos,      SLE_UINT16),
00689          SLE_VAR(Train, force_proceed,       SLE_UINT8),
00690          SLE_VAR(Train, railtype,            SLE_UINT8),
00691          SLE_VAR(Train, track,               SLE_UINT8),
00692 
00693      SLE_CONDVAR(Train, flags,               SLE_FILE_U8  | SLE_VAR_U16,   2,  99),
00694      SLE_CONDVAR(Train, flags,               SLE_UINT16,                 100, SL_MAX_VERSION),
00695     SLE_CONDNULL(2, 2, 59),
00696 
00697      SLE_CONDVAR(Train, wait_counter,        SLE_UINT16,                 136, SL_MAX_VERSION),
00698 
00699     SLE_CONDNULL(2, 2, 19),
00700      SLE_CONDVAR(Train, gv_flags,            SLE_UINT16,                 139, SL_MAX_VERSION),
00701     SLE_CONDNULL(11, 2, 143), // old reserved space
00702 
00703          SLE_END()
00704   };
00705 
00706   static const SaveLoad _roadveh_desc[] = {
00707     SLE_WRITEBYTE(Vehicle, type, VEH_ROAD),
00708     SLE_VEH_INCLUDE(),
00709          SLE_VAR(RoadVehicle, state,                SLE_UINT8),
00710          SLE_VAR(RoadVehicle, frame,                SLE_UINT8),
00711          SLE_VAR(RoadVehicle, blocked_ctr,          SLE_UINT16),
00712          SLE_VAR(RoadVehicle, overtaking,           SLE_UINT8),
00713          SLE_VAR(RoadVehicle, overtaking_ctr,       SLE_UINT8),
00714          SLE_VAR(RoadVehicle, crashed_ctr,          SLE_UINT16),
00715          SLE_VAR(RoadVehicle, reverse_ctr,          SLE_UINT8),
00716 
00717     SLE_CONDNULL(2,                                                               6,  68),
00718      SLE_CONDVAR(RoadVehicle, gv_flags,             SLE_UINT16,                 139, SL_MAX_VERSION),
00719     SLE_CONDNULL(4,                                                              69, 130),
00720     SLE_CONDNULL(2,                                                               6, 130),
00721     SLE_CONDNULL(16,                                                              2, 143), // old reserved space
00722 
00723          SLE_END()
00724   };
00725 
00726   static const SaveLoad _ship_desc[] = {
00727     SLE_WRITEBYTE(Vehicle, type, VEH_SHIP),
00728     SLE_VEH_INCLUDE(),
00729          SLE_VAR(Ship, state, SLE_UINT8),
00730 
00731     SLE_CONDNULL(16, 2, 143), // old reserved space
00732 
00733          SLE_END()
00734   };
00735 
00736   static const SaveLoad _aircraft_desc[] = {
00737     SLE_WRITEBYTE(Vehicle, type, VEH_AIRCRAFT),
00738     SLE_VEH_INCLUDE(),
00739          SLE_VAR(Aircraft, crashed_counter,       SLE_UINT16),
00740          SLE_VAR(Aircraft, pos,                   SLE_UINT8),
00741 
00742      SLE_CONDVAR(Aircraft, targetairport,         SLE_FILE_U8  | SLE_VAR_U16,   0, 4),
00743      SLE_CONDVAR(Aircraft, targetairport,         SLE_UINT16,                   5, SL_MAX_VERSION),
00744 
00745          SLE_VAR(Aircraft, state,                 SLE_UINT8),
00746 
00747      SLE_CONDVAR(Aircraft, previous_pos,          SLE_UINT8,                    2, SL_MAX_VERSION),
00748      SLE_CONDVAR(Aircraft, last_direction,        SLE_UINT8,                    2, SL_MAX_VERSION),
00749      SLE_CONDVAR(Aircraft, number_consecutive_turns, SLE_UINT8,                 2, SL_MAX_VERSION),
00750 
00751      SLE_CONDVAR(Aircraft, turn_counter,          SLE_UINT8,                  136, SL_MAX_VERSION),
00752      SLE_CONDVAR(Aircraft, flags,                 SLE_UINT8,                  167, SL_MAX_VERSION),
00753 
00754     SLE_CONDNULL(13,                                                           2, 143), // old reserved space
00755 
00756          SLE_END()
00757   };
00758 
00759   static const SaveLoad _special_desc[] = {
00760     SLE_WRITEBYTE(Vehicle, type, VEH_EFFECT),
00761 
00762          SLE_VAR(Vehicle, subtype,               SLE_UINT8),
00763 
00764      SLE_CONDVAR(Vehicle, tile,                  SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00765      SLE_CONDVAR(Vehicle, tile,                  SLE_UINT32,                   6, SL_MAX_VERSION),
00766 
00767      SLE_CONDVAR(Vehicle, x_pos,                 SLE_FILE_I16 | SLE_VAR_I32,   0,   5),
00768      SLE_CONDVAR(Vehicle, x_pos,                 SLE_INT32,                    6, SL_MAX_VERSION),
00769      SLE_CONDVAR(Vehicle, y_pos,                 SLE_FILE_I16 | SLE_VAR_I32,   0,   5),
00770      SLE_CONDVAR(Vehicle, y_pos,                 SLE_INT32,                    6, SL_MAX_VERSION),
00771      SLE_CONDVAR(Vehicle, z_pos,                 SLE_FILE_U8  | SLE_VAR_I32,   0, 163),
00772      SLE_CONDVAR(Vehicle, z_pos,                 SLE_INT32,                  164, SL_MAX_VERSION),
00773 
00774          SLE_VAR(Vehicle, cur_image,             SLE_FILE_U16 | SLE_VAR_U32),
00775     SLE_CONDNULL(5,                                                            0,  57),
00776          SLE_VAR(Vehicle, progress,              SLE_UINT8),
00777          SLE_VAR(Vehicle, vehstatus,             SLE_UINT8),
00778 
00779          SLE_VAR(EffectVehicle, animation_state,    SLE_UINT16),
00780          SLE_VAR(EffectVehicle, animation_substate, SLE_UINT8),
00781 
00782      SLE_CONDVAR(Vehicle, spritenum,             SLE_UINT8,                    2, SL_MAX_VERSION),
00783 
00784     SLE_CONDNULL(15,                                                           2, 143), // old reserved space
00785 
00786          SLE_END()
00787   };
00788 
00789   static const SaveLoad _disaster_desc[] = {
00790     SLE_WRITEBYTE(Vehicle, type, VEH_DISASTER),
00791 
00792          SLE_REF(Vehicle, next,                  REF_VEHICLE_OLD),
00793 
00794          SLE_VAR(Vehicle, subtype,               SLE_UINT8),
00795      SLE_CONDVAR(Vehicle, tile,                  SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00796      SLE_CONDVAR(Vehicle, tile,                  SLE_UINT32,                   6, SL_MAX_VERSION),
00797      SLE_CONDVAR(Vehicle, dest_tile,             SLE_FILE_U16 | SLE_VAR_U32,   0,   5),
00798      SLE_CONDVAR(Vehicle, dest_tile,             SLE_UINT32,                   6, SL_MAX_VERSION),
00799 
00800      SLE_CONDVAR(Vehicle, x_pos,                 SLE_FILE_I16 | SLE_VAR_I32,   0,   5),
00801      SLE_CONDVAR(Vehicle, x_pos,                 SLE_INT32,                    6, SL_MAX_VERSION),
00802      SLE_CONDVAR(Vehicle, y_pos,                 SLE_FILE_I16 | SLE_VAR_I32,   0,   5),
00803      SLE_CONDVAR(Vehicle, y_pos,                 SLE_INT32,                    6, SL_MAX_VERSION),
00804      SLE_CONDVAR(Vehicle, z_pos,                 SLE_FILE_U8  | SLE_VAR_I32,   0, 163),
00805      SLE_CONDVAR(Vehicle, z_pos,                 SLE_INT32,                  164, SL_MAX_VERSION),
00806          SLE_VAR(Vehicle, direction,             SLE_UINT8),
00807 
00808     SLE_CONDNULL(5,                                                            0,  57),
00809          SLE_VAR(Vehicle, owner,                 SLE_UINT8),
00810          SLE_VAR(Vehicle, vehstatus,             SLE_UINT8),
00811      SLE_CONDVAR(Vehicle, current_order.dest,    SLE_FILE_U8 | SLE_VAR_U16,    0,   4),
00812      SLE_CONDVAR(Vehicle, current_order.dest,    SLE_UINT16,                   5, SL_MAX_VERSION),
00813 
00814          SLE_VAR(Vehicle, cur_image,             SLE_FILE_U16 | SLE_VAR_U32),
00815      SLE_CONDVAR(Vehicle, age,                   SLE_FILE_U16 | SLE_VAR_I32,   0,  30),
00816      SLE_CONDVAR(Vehicle, age,                   SLE_INT32,                   31, SL_MAX_VERSION),
00817          SLE_VAR(Vehicle, tick_counter,          SLE_UINT8),
00818 
00819          SLE_VAR(DisasterVehicle, image_override,            SLE_UINT16),
00820          SLE_VAR(DisasterVehicle, big_ufo_destroyer_target,  SLE_UINT16),
00821 
00822     SLE_CONDNULL(16,                                                           2, 143), // old reserved space
00823 
00824          SLE_END()
00825   };
00826 
00827 
00828   static const SaveLoad * const _veh_descs[] = {
00829     _train_desc,
00830     _roadveh_desc,
00831     _ship_desc,
00832     _aircraft_desc,
00833     _special_desc,
00834     _disaster_desc,
00835     _common_veh_desc,
00836   };
00837 
00838   return _veh_descs[vt];
00839 }
00840 
00842 static void Save_VEHS()
00843 {
00844   Vehicle *v;
00845   /* Write the vehicles */
00846   FOR_ALL_VEHICLES(v) {
00847     SlSetArrayIndex(v->index);
00848     SlObject(v, GetVehicleDescription(v->type));
00849   }
00850 }
00851 
00853 void Load_VEHS()
00854 {
00855   int index;
00856 
00857   _cargo_count = 0;
00858 
00859   while ((index = SlIterateArray()) != -1) {
00860     Vehicle *v;
00861     VehicleType vtype = (VehicleType)SlReadByte();
00862 
00863     switch (vtype) {
00864       case VEH_TRAIN:    v = new (index) Train();           break;
00865       case VEH_ROAD:     v = new (index) RoadVehicle();     break;
00866       case VEH_SHIP:     v = new (index) Ship();            break;
00867       case VEH_AIRCRAFT: v = new (index) Aircraft();        break;
00868       case VEH_EFFECT:   v = new (index) EffectVehicle();   break;
00869       case VEH_DISASTER: v = new (index) DisasterVehicle(); break;
00870       case VEH_INVALID: // Savegame shouldn't contain invalid vehicles
00871       default: SlErrorCorrupt("Invalid vehicle type");
00872     }
00873 
00874     SlObject(v, GetVehicleDescription(vtype));
00875 
00876     if (_cargo_count != 0 && IsCompanyBuildableVehicleType(v) && CargoPacket::CanAllocateItem()) {
00877       /* Don't construct the packet with station here, because that'll fail with old savegames */
00878       CargoPacket *cp = new CargoPacket(_cargo_count, _cargo_days, _cargo_source, _cargo_source_xy, _cargo_loaded_at_xy, _cargo_feeder_share);
00879       v->cargo.Append(cp);
00880     }
00881 
00882     /* Old savegames used 'last_station_visited = 0xFF' */
00883     if (IsSavegameVersionBefore(5) && v->last_station_visited == 0xFF) {
00884       v->last_station_visited = INVALID_STATION;
00885     }
00886 
00887     if (IsSavegameVersionBefore(SL_CAPACITIES)) v->last_loading_station = INVALID_STATION;
00888 
00889     if (IsSavegameVersionBefore(5)) {
00890       /* Convert the current_order.type (which is a mix of type and flags, because
00891        *  in those versions, they both were 4 bits big) to type and flags */
00892       v->current_order.flags = GB(v->current_order.type, 4, 4);
00893       v->current_order.type &= 0x0F;
00894     }
00895 
00896     /* Advanced vehicle lists got added */
00897     if (IsSavegameVersionBefore(60)) v->group_id = DEFAULT_GROUP;
00898   }
00899 }
00900 
00901 static void Ptrs_VEHS()
00902 {
00903   Vehicle *v;
00904   FOR_ALL_VEHICLES(v) {
00905     SlObject(v, GetVehicleDescription(v->type));
00906   }
00907 }
00908 
00909 extern const ChunkHandler _veh_chunk_handlers[] = {
00910   { 'VEHS', Save_VEHS, Load_VEHS, Ptrs_VEHS, NULL, CH_SPARSE_ARRAY | CH_LAST},
00911 };