# vehicle_cmd.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 "roadveh.h"
    00014 #include "gfx_func.h"
    00015 #include "news_func.h"
    00016 #include "airport.h"
    00017 #include "command_func.h"
    00018 #include "company_func.h"
    00019 #include "vehicle_gui.h"
    00020 #include "train.h"
    00021 #include "aircraft.h"
    00022 #include "newgrf_engine.h"
    00023 #include "newgrf_text.h"
    00024 #include "functions.h"
    00025 #include "window_func.h"
    00026 #include "vehicle_func.h"
    00027 #include "string_func.h"
    00028 #include "depot_map.h"
    00029 #include "vehiclelist.h"
    00030 #include "infrastructure_func.h"
    00031
    00032 #include "table/strings.h"
    00033
    00034 /* Tables used in vehicle.h to find the right command for a certain vehicle type */
    00035 const uint32 _veh_build_proc_table[] = {
    00036   CMD_BUILD_RAIL_VEHICLE | CMD_MSG(STR_ERROR_CAN_T_BUY_TRAIN),
    00037   CMD_BUILD_ROAD_VEH     | CMD_MSG(STR_ERROR_CAN_T_BUY_ROAD_VEHICLE),
    00038   CMD_BUILD_SHIP         | CMD_MSG(STR_ERROR_CAN_T_BUY_SHIP),
    00039   CMD_BUILD_AIRCRAFT     | CMD_MSG(STR_ERROR_CAN_T_BUY_AIRCRAFT),
    00040 };
    00041
    00042 const uint32 _veh_sell_proc_table[] = {
    00043   CMD_SELL_RAIL_WAGON | CMD_MSG(STR_ERROR_CAN_T_SELL_TRAIN),
    00044   CMD_SELL_ROAD_VEH   | CMD_MSG(STR_ERROR_CAN_T_SELL_ROAD_VEHICLE),
    00045   CMD_SELL_SHIP       | CMD_MSG(STR_ERROR_CAN_T_SELL_SHIP),
    00046   CMD_SELL_AIRCRAFT   | CMD_MSG(STR_ERROR_CAN_T_SELL_AIRCRAFT),
    00047 };
    00048
    00049 const uint32 _veh_refit_proc_table[] = {
    00050   CMD_REFIT_RAIL_VEHICLE | CMD_MSG(STR_ERROR_CAN_T_REFIT_TRAIN),
    00051   CMD_REFIT_ROAD_VEH     | CMD_MSG(STR_ERROR_CAN_T_REFIT_ROAD_VEHICLE),
    00052   CMD_REFIT_SHIP         | CMD_MSG(STR_ERROR_CAN_T_REFIT_SHIP),
    00053   CMD_REFIT_AIRCRAFT     | CMD_MSG(STR_ERROR_CAN_T_REFIT_AIRCRAFT),
    00054 };
    00055
    00056 const uint32 _send_to_depot_proc_table[] = {
    00057   /* TrainGotoDepot has a nice randomizer in the pathfinder, which causes desyncs... */
    00058   CMD_SEND_TRAIN_TO_DEPOT     | CMD_MSG(STR_ERROR_CAN_T_SEND_TRAIN_TO_DEPOT) | CMD_NO_TEST_IF_IN_NETWORK,
    00059   CMD_SEND_ROADVEH_TO_DEPOT   | CMD_MSG(STR_ERROR_CAN_T_SEND_ROAD_VEHICLE_TO_DEPOT),
    00060   CMD_SEND_SHIP_TO_DEPOT      | CMD_MSG(STR_ERROR_CAN_T_SEND_SHIP_TO_DEPOT),
    00061   CMD_SEND_AIRCRAFT_TO_HANGAR | CMD_MSG(STR_ERROR_CAN_T_SEND_AIRCRAFT_TO_HANGAR),
    00062 };
    00063
    00072 CommandCost CmdStartStopVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00073 {
    00074   /* Disable the effect of p2 bit 0, when DC_AUTOREPLACE is not set */
    00075   if ((flags & DC_AUTOREPLACE) == 0) SetBit(p2, 0);
    00076
    00077   Vehicle *v = Vehicle::GetIfValid(p1);
    00078   if (v == NULL || !CheckVehicleControlAllowed(v) || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00079
    00080   switch (v->type) {
    00081     case VEH_TRAIN:
    00082       if ((v->vehstatus & VS_STOPPED) && Train::From(v)->tcache.cached_power == 0) return_cmd_error(STR_ERROR_TRAIN_START_NO_CATENARY);
    00083       break;
    00084
    00085     case VEH_SHIP:
    00086     case VEH_ROAD:
    00087       break;
    00088
    00089     case VEH_AIRCRAFT: {
    00090       Aircraft *a = Aircraft::From(v);
    00091       /* cannot stop airplane when in flight, or when taking off / landing */
    00092       if (a->state >= STARTTAKEOFF && a->state < TERM7) return_cmd_error(STR_ERROR_AIRCRAFT_IS_IN_FLIGHT);
    00093     } break;
    00094
    00095     default: return CMD_ERROR;
    00096   }
    00097
    00098   /* Check if this vehicle can be started/stopped. The callback will fail or
    00099    * return 0xFF if it can. */
    00100   uint16 callback = GetVehicleCallback(CBID_VEHICLE_START_STOP_CHECK, 0, 0, v->engine_type, v);
    00101   if (callback != CALLBACK_FAILED && GB(callback, 0, 8) != 0xFF && HasBit(p2, 0)) {
    00102     StringID error = GetGRFStringID(GetEngineGRFID(v->engine_type), 0xD000 + callback);
    00103     return_cmd_error(error);
    00104   }
    00105
    00106   if (flags & DC_EXEC) {
    00107     if (v->IsStoppedInDepot() && (flags & DC_AUTOREPLACE) == 0) DeleteVehicleNews(p1, STR_NEWS_TRAIN_IS_WAITING + v->type);
    00108
    00109     v->vehstatus ^= VS_STOPPED;
    00110     if (v->type != VEH_TRAIN) v->cur_speed = 0; // trains can stop 'slowly'
    00111     v->MarkDirty();
    00112     SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
    00113     SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
    00114     SetWindowClassesDirty(GetWindowClassForVehicleType(v->type));
    00115   }
    00116   return CommandCost();
    00117 }
    00118
    00131 CommandCost CmdMassStartStopVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00132 {
    00133   VehicleList list;
    00134   CommandCost return_value = CMD_ERROR;
    00135   VehicleType vehicle_type = (VehicleType)GB(p2, 0, 5);
    00136   bool start_stop = HasBit(p2, 5);
    00137   bool vehicle_list_window = HasBit(p2, 6);
    00138
    00139   if (vehicle_list_window) {
    00140     uint32 id = p1;
    00141     uint16 window_type = p2 & VLW_MASK;
    00142
    00143     GenerateVehicleSortList(&list, vehicle_type, _current_company, id, window_type);
    00144   } else {
    00145     /* Get the list of vehicles in the depot */
    00146     BuildDepotVehicleList(vehicle_type, tile, &list, NULL);
    00147   }
    00148
    00149   for (uint i = 0; i < list.Length(); i++) {
    00150     const Vehicle *v = list[i];
    00151
    00152     if (!!(v->vehstatus & VS_STOPPED) != start_stop) continue;
    00153
    00154     if (!vehicle_list_window) {
    00155       if (vehicle_type == VEH_TRAIN) {
    00156         if (!Train::From(v)->IsInDepot()) continue;
    00157       } else {
    00158         if (!(v->vehstatus & VS_HIDDEN)) continue;
    00159       }
    00160     }
    00161
    00162     CommandCost ret = DoCommand(tile, v->index, 0, flags, CMD_START_STOP_VEHICLE);
    00163
    00164     if (CmdSucceeded(ret)) {
    00165       return_value = CommandCost();
    00166       /* We know that the command is valid for at least one vehicle.
    00167        * If we haven't set DC_EXEC, then there is no point in continueing because it will be valid */
    00168       if (!(flags & DC_EXEC)) break;
    00169     }
    00170   }
    00171
    00172   return return_value;
    00173 }
    00174
    00183 CommandCost CmdDepotSellAllVehicles(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00184 {
    00185   VehicleList list;
    00186
    00187   CommandCost cost(EXPENSES_NEW_VEHICLES);
    00188   VehicleType vehicle_type = (VehicleType)GB(p1, 0, 8);
    00189   uint sell_command = GetCmdSellVeh(vehicle_type);
    00190
    00191   /* Get the list of vehicles in the depot */
    00192   BuildDepotVehicleList(vehicle_type, tile, &list, &list);
    00193
    00194   for (uint i = 0; i < list.Length(); i++) {
    00195     CommandCost ret = DoCommand(tile, list[i]->index, 1, flags, sell_command);
    00196     if (CmdSucceeded(ret)) cost.AddCost(ret);
    00197   }
    00198
    00199   if (cost.GetCost() == 0) return CMD_ERROR; // no vehicles to sell
    00200   return cost;
    00201 }
    00202
    00214 CommandCost CmdDepotMassAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00215 {
    00216   VehicleList list;
    00217   CommandCost cost = CommandCost(EXPENSES_NEW_VEHICLES);
    00218   VehicleType vehicle_type = (VehicleType)GB(p1, 0, 8);
    00219   bool all_or_nothing = HasBit(p2, 0);
    00220
    00221   if (!IsDepotTile(tile) || !CheckInfraUsageAllowed(GetTileOwner(tile), vehicle_type)) return CMD_ERROR;
    00222
    00223   /* Get the list of vehicles in the depot */
    00224   BuildDepotVehicleList(vehicle_type, tile, &list, &list, true);
    00225
    00226   bool did_something = false;
    00227
    00228   for (uint i = 0; i < list.Length(); i++) {
    00229     const Vehicle *v = list[i];
    00230
    00231     /* Ensure that the vehicle completely in the depot */
    00232     if (!v->IsInDepot()) continue;
    00233
    00234     CommandCost ret = DoCommand(0, v->index, 0, flags, CMD_AUTOREPLACE_VEHICLE);
    00235
    00236     if (CmdSucceeded(ret)) {
    00237       did_something = true;
    00238       cost.AddCost(ret);
    00239     } else {
    00240       if (ret.GetErrorMessage() != STR_ERROR_AUTOREPLACE_NOTHING_TO_DO && all_or_nothing) {
    00241         /* We failed to replace a vehicle even though we set all or nothing.
    00242          * We should never reach this if DC_EXEC is set since then it should
    00243          * have failed the estimation guess. */
    00244         assert(!(flags & DC_EXEC));
    00245         /* Now we will have to return an error. */
    00246         return CMD_ERROR;
    00247       }
    00248     }
    00249   }
    00250
    00251   if (!did_something) {
    00252     /* Either we didn't replace anything or something went wrong.
    00253      * Either way we want to return an error and not execute this command. */
    00254     cost = CMD_ERROR;
    00255   }
    00256
    00257   return cost;
    00258 }
    00259
    00264 static CommandCost GetRefitCost(EngineID engine_type)
    00265 {
    00266   ExpensesType expense_type;
    00267   const Engine *e = Engine::Get(engine_type);
    00268   Price base_price;
    00269   uint cost_factor = e->info.refit_cost;
    00270   switch (e->type) {
    00271     case VEH_SHIP:
    00272       base_price = PR_BUILD_VEHICLE_SHIP;
    00273       expense_type = EXPENSES_SHIP_RUN;
    00274       break;
    00275
    00276     case VEH_ROAD:
    00277       base_price = PR_BUILD_VEHICLE_ROAD;
    00278       expense_type = EXPENSES_ROADVEH_RUN;
    00279       break;
    00280
    00281     case VEH_AIRCRAFT:
    00282       base_price = PR_BUILD_VEHICLE_AIRCRAFT;
    00283       expense_type = EXPENSES_AIRCRAFT_RUN;
    00284       break;
    00285
    00286     case VEH_TRAIN:
    00287       base_price = (e->u.rail.railveh_type == RAILVEH_WAGON) ? PR_BUILD_VEHICLE_WAGON : PR_BUILD_VEHICLE_TRAIN;
    00288       cost_factor <<= 1;
    00289       expense_type = EXPENSES_TRAIN_RUN;
    00290       break;
    00291
    00292     default: NOT_REACHED();
    00293   }
    00294   return CommandCost(expense_type, GetPrice(base_price, cost_factor, e->grffile, -10));
    00295 }
    00296
    00307 CommandCost RefitVehicle(Vehicle *v, bool only_this, CargoID new_cid, byte new_subtype, DoCommandFlag flags)
    00308 {
    00309   CommandCost cost(v->GetExpenseType(false));
    00310   uint total_capacity = 0;
    00311   bool success = false;
    00312
    00313   v->InvalidateNewGRFCacheOfChain();
    00314   for (; v != NULL; v = (only_this ? NULL : v->Next())) {
    00315     const Engine *e = Engine::Get(v->engine_type);
    00316     if (!e->CanCarryCargo() || !HasBit(e->info.refit_mask, new_cid)) continue;
    00317     success = true;
    00318
    00319     /* Back up the vehicle's cargo type */
    00320     CargoID temp_cid = v->cargo_type;
    00321     byte temp_subtype = v->cargo_subtype;
    00322     v->cargo_type = new_cid;
    00323     v->cargo_subtype = new_subtype;
    00324
    00325     uint16 mail_capacity;
    00326     uint amount = GetVehicleCapacity(v, &mail_capacity);
    00327     total_capacity += amount;
    00328
    00329     /* Restore the original cargo type */
    00330     v->cargo_type = temp_cid;
    00331     v->cargo_subtype = temp_subtype;
    00332
    00333     if (new_cid != v->cargo_type) {
    00334       cost.AddCost(GetRefitCost(v->engine_type));
    00335     }
    00336
    00337     if (flags & DC_EXEC) {
    00338       v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
    00339       v->cargo_type = new_cid;
    00340       v->cargo_cap = amount;
    00341       v->cargo_subtype = new_subtype;
    00342       if (v->type == VEH_AIRCRAFT) {
    00343         Vehicle *u = v->Next();
    00344         u->cargo_cap = mail_capacity;
    00345         u->cargo.Truncate(mail_capacity);
    00346       }
    00347     }
    00348   }
    00349
    00350   _returned_refit_capacity = total_capacity;
    00351   return success ? cost : CMD_ERROR;
    00352 }
    00353
    00358 static bool IsUniqueVehicleName(const char *name)
    00359 {
    00360   const Vehicle *v;
    00361
    00362   FOR_ALL_VEHICLES(v) {
    00363     if (v->name != NULL && strcmp(v->name, name) == 0) return false;
    00364   }
    00365
    00366   return true;
    00367 }
    00368
    00373 static void CloneVehicleName(const Vehicle *src, Vehicle *dst)
    00374 {
    00375   char buf[256];
    00376
    00377   /* Find the position of the first digit in the last group of digits. */
    00378   size_t number_position;
    00379   for (number_position = strlen(src->name); number_position > 0; number_position--) {
    00380     /* The design of UTF-8 lets this work simply without having to check
    00381      * for UTF-8 sequences. */
    00382     if (src->name[number_position - 1] < '0' || src->name[number_position - 1] > '9') break;
    00383   }
    00384
    00385   /* Format buffer and determine starting number. */
    00386   int num;
    00387   if (number_position == strlen(src->name)) {
    00388     /* No digit at the end, so start at number 2. */
    00389     strecpy(buf, src->name, lastof(buf));
    00390     strecat(buf, " ", lastof(buf));
    00391     number_position = strlen(buf);
    00392     num = 2;
    00393   } else {
    00394     /* Found digits, parse them and start at the next number. */
    00395     strecpy(buf, src->name, lastof(buf));
    00396     buf[number_position] = '\0';
    00397     num = strtol(&src->name[number_position], NULL, 10) + 1;
    00398   }
    00399
    00400   /* Check if this name is already taken. */
    00401   for (int max_iterations = 1000; max_iterations > 0; max_iterations--, num++) {
    00402     /* Attach the number to the temporary name. */
    00403     seprintf(&buf[number_position], lastof(buf), "%d", num);
    00404
    00405     /* Check the name is unique. */
    00406     if (IsUniqueVehicleName(buf)) {
    00407       dst->name = strdup(buf);
    00408       break;
    00409     }
    00410   }
    00411
    00412   /* All done. If we didn't find a name, it'll just use its default. */
    00413 }
    00414
    00423 CommandCost CmdCloneVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00424 {
    00425   CommandCost total_cost(EXPENSES_NEW_VEHICLES);
    00426   uint32 build_argument = 2;
    00427
    00428   Vehicle *v = Vehicle::GetIfValid(p1);
    00429   if (v == NULL) return CMD_ERROR;
    00430   Vehicle *v_front = v;
    00431   Vehicle *w = NULL;
    00432   Vehicle *w_front = NULL;
    00433   Vehicle *w_rear = NULL;
    00434
    00435   /*
    00436    * v_front is the front engine in the original vehicle
    00437    * v is the car/vehicle of the original vehicle, that is currently being copied
    00438    * w_front is the front engine of the cloned vehicle
    00439    * w is the car/vehicle currently being cloned
    00440    * w_rear is the rear end of the cloned train. It's used to add more cars and is only used by trains
    00441    */
    00442
    00443   if (!CheckOwnership(v->owner)) return CMD_ERROR;
    00444
    00445   if (v->type == VEH_TRAIN && (!Train::From(v)->IsFrontEngine() || Train::From(v)->crash_anim_pos >= 4400)) return CMD_ERROR;
    00446
    00447   /* check that we can allocate enough vehicles */
    00448   if (!(flags & DC_EXEC)) {
    00449     int veh_counter = 0;
    00450     do {
    00451       veh_counter++;
    00452     } while ((v = v->Next()) != NULL);
    00453
    00454     if (!Vehicle::CanAllocateItem(veh_counter)) {
    00455       return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
    00456     }
    00457   }
    00458
    00459   v = v_front;
    00460
    00461   do {
    00462     if (v->type == VEH_TRAIN && Train::From(v)->IsRearDualheaded()) {
    00463       /* we build the rear ends of multiheaded trains with the front ones */
    00464       continue;
    00465     }
    00466
    00467     /* In case we're building a multi headed vehicle and the maximum number of
    00468      * vehicles is almost reached (e.g. max trains - 1) not all vehicles would
    00469      * be cloned. When the non-primary engines were build they were seen as
    00470      * 'new' vehicles whereas they would immediately be joined with a primary
    00471      * engine. This caused the vehicle to be not build as 'the limit' had been
    00472      * reached, resulting in partially build vehicles and such. */
    00473     DoCommandFlag build_flags = flags;
    00474     if ((flags & DC_EXEC) && !v->IsPrimaryVehicle()) build_flags |= DC_AUTOREPLACE;
    00475
    00476     CommandCost cost = DoCommand(tile, v->engine_type, build_argument, build_flags, GetCmdBuildVeh(v));
    00477     build_argument = 3; // ensure that we only assign a number to the first engine
    00478
    00479     if (CmdFailed(cost)) {
    00480       /* Can't build a part, then sell the stuff we already made; clear up the mess */
    00481       if (w_front != NULL) DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
    00482       return cost;
    00483     }
    00484
    00485     total_cost.AddCost(cost);
    00486
    00487     if (flags & DC_EXEC) {
    00488       w = Vehicle::Get(_new_vehicle_id);
    00489
    00490       if (v->type == VEH_TRAIN && HasBit(Train::From(v)->flags, VRF_REVERSE_DIRECTION)) {
    00491         SetBit(Train::From(w)->flags, VRF_REVERSE_DIRECTION);
    00492       }
    00493
    00494       if (v->type == VEH_TRAIN && !Train::From(v)->IsFrontEngine()) {
    00495         /* this s a train car
    00496          * add this unit to the end of the train */
    00497         CommandCost result = DoCommand(0, (w_rear->index << 16) | w->index, 1, flags, CMD_MOVE_RAIL_VEHICLE);
    00498         if (CmdFailed(result)) {
    00499           /* The train can't be joined to make the same consist as the original.
    00500            * Sell what we already made (clean up) and return an error.           */
    00501           DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
    00502           DoCommand(w_front->tile, w->index,       1, flags, GetCmdSellVeh(w));
    00503           return result; // return error and the message returned from CMD_MOVE_RAIL_VEHICLE
    00504         }
    00505       } else {
    00506         /* this is a front engine or not a train. */
    00507         w_front = w;
    00508         w->service_interval = v->service_interval;
    00509       }
    00510       w_rear = w; // trains needs to know the last car in the train, so they can add more in next loop
    00511     }
    00512   } while (v->type == VEH_TRAIN && (v = Train::From(v)->GetNextVehicle()) != NULL);
    00513
    00514   if ((flags & DC_EXEC) && v_front->type == VEH_TRAIN) {
    00515     /* for trains this needs to be the front engine due to the callback function */
    00516     _new_vehicle_id = w_front->index;
    00517   }
    00518
    00519   if (flags & DC_EXEC) {
    00520     /* Cloned vehicles belong to the same group */
    00521     DoCommand(0, v_front->group_id, w_front->index, flags, CMD_ADD_VEHICLE_GROUP);
    00522   }
    00523
    00524
    00525   /* Take care of refitting. */
    00526   w = w_front;
    00527   v = v_front;
    00528
    00529   /* Both building and refitting are influenced by newgrf callbacks, which
    00530    * makes it impossible to accurately estimate the cloning costs. In
    00531    * particular, it is possible for engines of the same type to be built with
    00532    * different numbers of articulated parts, so when refitting we have to
    00533    * loop over real vehicles first, and then the articulated parts of those
    00534    * vehicles in a different loop. */
    00535   do {
    00536     do {
    00537       if (flags & DC_EXEC) {
    00538         assert(w != NULL);
    00539
    00540         /* Find out what's the best sub type */
    00541         byte subtype = GetBestFittingSubType(v, w);
    00542         if (w->cargo_type != v->cargo_type || w->cargo_subtype != subtype) {
    00543           CommandCost cost = DoCommand(0, w->index, v->cargo_type | (subtype << 8) | 1U << 16, flags, GetCmdRefitVeh(v));
    00544           if (CmdSucceeded(cost)) total_cost.AddCost(cost);
    00545         }
    00546
    00547         if (w->type == VEH_TRAIN && Train::From(w)->HasArticulatedPart()) {
    00548           w = Train::From(w)->GetNextArticPart();
    00549         } else if (w->type == VEH_ROAD && RoadVehicle::From(w)->HasArticulatedPart()) {
    00550           w = w->Next();
    00551         } else {
    00552           break;
    00553         }
    00554       } else {
    00555         const Engine *e = Engine::Get(v->engine_type);
    00556         CargoID initial_cargo = (e->CanCarryCargo() ? e->GetDefaultCargoType() : (CargoID)CT_INVALID);
    00557
    00558         if (v->cargo_type != initial_cargo && initial_cargo != CT_INVALID) {
    00559           total_cost.AddCost(GetRefitCost(v->engine_type));
    00560         }
    00561       }
    00562
    00563       if (v->type == VEH_TRAIN && Train::From(v)->HasArticulatedPart()) {
    00564         v = Train::From(v)->GetNextArticPart();
    00565       } else if (v->type == VEH_ROAD && RoadVehicle::From(v)->HasArticulatedPart()) {
    00566         v = v->Next();
    00567       } else {
    00568         break;
    00569       }
    00570     } while (v != NULL);
    00571
    00572     if ((flags & DC_EXEC) && v->type == VEH_TRAIN) w = Train::From(w)->GetNextVehicle();
    00573   } while (v->type == VEH_TRAIN && (v = Train::From(v)->GetNextVehicle()) != NULL);
    00574
    00575   if (flags & DC_EXEC) {
    00576     /*
    00577      * Set the orders of the vehicle. Cannot do it earlier as we need
    00578      * the vehicle refitted before doing this, otherwise the moved
    00579      * cargo types might not match (passenger vs non-passenger)
    00580      */
    00581     DoCommand(0, (v_front->index << 16) | w_front->index, p2 & 1 ? CO_SHARE : CO_COPY, flags, CMD_CLONE_ORDER);
    00582
    00583     /* Now clone the vehicle's name, if it has one. */
    00584     if (v_front->name != NULL) CloneVehicleName(v_front, w_front);
    00585   }
    00586
    00587   /* Since we can't estimate the cost of cloning a vehicle accurately we must
    00588    * check whether the company has enough money manually. */
    00589   if (!CheckCompanyHasMoney(total_cost)) {
    00590     if (flags & DC_EXEC) {
    00591       /* The vehicle has already been bought, so now it must be sold again. */
    00592       DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
    00593     }
    00594     return CMD_ERROR;
    00595   }
    00596
    00597   return total_cost;
    00598 }
    00599
    00610 CommandCost SendAllVehiclesToDepot(VehicleType type, DoCommandFlag flags, bool service, Owner owner, uint16 vlw_flag, uint32 id)
    00611 {
    00612   VehicleList list;
    00613
    00614   GenerateVehicleSortList(&list, type, owner, id, vlw_flag);
    00615
    00616   /* Send all the vehicles to a depot */
    00617   for (uint i = 0; i < list.Length(); i++) {
    00618     const Vehicle *v = list[i];
    00619     CommandCost ret = DoCommand(v->tile, v->index, (service ? 1 : 0) | DEPOT_DONT_CANCEL, flags, GetCmdSendToDepot(type));
    00620
    00621     /* Return 0 if DC_EXEC is not set this is a valid goto depot command)
    00622      * In this case we know that at least one vehicle can be sent to a depot
    00623      * and we will issue the command. We can now safely quit the loop, knowing
    00624      * it will succeed at least once. With DC_EXEC we really need to send them to the depot */
    00625     if (CmdSucceeded(ret) && !(flags & DC_EXEC)) {
    00626       return CommandCost();
    00627     }
    00628   }
    00629
    00630   return (flags & DC_EXEC) ? CommandCost() : CMD_ERROR;
    00631 }
    00632
    00641 CommandCost CmdRenameVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00642 {
    00643   Vehicle *v = Vehicle::GetIfValid(p1);
    00644   if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
    00645
    00646   bool reset = StrEmpty(text);
    00647
    00648   if (!reset) {
    00649     if (strlen(text) >= MAX_LENGTH_VEHICLE_NAME_BYTES) return CMD_ERROR;
    00650     if (!(flags & DC_AUTOREPLACE) && !IsUniqueVehicleName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
    00651   }
    00652
    00653   if (flags & DC_EXEC) {
    00654     free(v->name);
    00655     v->name = reset ? NULL : strdup(text);
    00656     InvalidateWindowClassesData(WC_TRAINS_LIST, 1);
    00657     MarkWholeScreenDirty();
    00658   }
    00659
    00660   return CommandCost();
    00661 }
    00662
    00663
    00672 CommandCost CmdChangeServiceInt(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00673 {
    00674   Vehicle *v = Vehicle::GetIfValid(p1);
    00675   if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
    00676
    00677   uint16 serv_int = GetServiceIntervalClamped(p2, v->owner); // Double check the service interval from the user-input
    00678   if (serv_int != p2) return CMD_ERROR;
    00679
    00680   if (flags & DC_EXEC) {
    00681     v->service_interval = serv_int;
    00682     SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
    00683   }
    00684
    00685   return CommandCost();
    00686 }