vehicle_cmd.cpp

Go to the documentation of this file.
00001 /* $Id: vehicle_cmd.cpp 19665 2010-04-17 22:27:49Z rubidium $ */
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 "news_func.h"
00015 #include "airport.h"
00016 #include "cmd_helper.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 "engine_base.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 || !CheckOwnership(v->owner) || !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   VehicleType vehicle_type = Extract<VehicleType, 0, 3>(p2);
00135   bool start_stop = HasBit(p2, 5);
00136   bool vehicle_list_window = HasBit(p2, 6);
00137 
00138   if (!IsCompanyBuildableVehicleType(vehicle_type)) return CMD_ERROR;
00139 
00140   if (vehicle_list_window) {
00141     uint32 id = p1;
00142     uint16 window_type = p2 & VLW_MASK;
00143 
00144     if (!GenerateVehicleSortList(&list, vehicle_type, _current_company, id, window_type)) return CMD_ERROR;
00145   } else {
00146     /* Get the list of vehicles in the depot */
00147     BuildDepotVehicleList(vehicle_type, tile, &list, NULL);
00148   }
00149 
00150   for (uint i = 0; i < list.Length(); i++) {
00151     const Vehicle *v = list[i];
00152 
00153     if (!!(v->vehstatus & VS_STOPPED) != start_stop) continue;
00154 
00155     if (!vehicle_list_window) {
00156       if (vehicle_type == VEH_TRAIN) {
00157         if (!Train::From(v)->IsInDepot()) continue;
00158       } else {
00159         if (!(v->vehstatus & VS_HIDDEN)) continue;
00160       }
00161     }
00162 
00163     /* Just try and don't care if some vehicle's can't be stopped. */
00164     DoCommand(tile, v->index, 0, flags, CMD_START_STOP_VEHICLE);
00165   }
00166 
00167   return CommandCost();
00168 }
00169 
00178 CommandCost CmdDepotSellAllVehicles(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00179 {
00180   VehicleList list;
00181 
00182   CommandCost cost(EXPENSES_NEW_VEHICLES);
00183   VehicleType vehicle_type = Extract<VehicleType, 0, 3>(p1);
00184   uint sell_command = GetCmdSellVeh(vehicle_type);
00185 
00186   if (!IsCompanyBuildableVehicleType(vehicle_type)) return CMD_ERROR;
00187 
00188   /* Get the list of vehicles in the depot */
00189   BuildDepotVehicleList(vehicle_type, tile, &list, &list);
00190 
00191   for (uint i = 0; i < list.Length(); i++) {
00192     CommandCost ret = DoCommand(tile, list[i]->index, 1, flags, sell_command);
00193     if (ret.Succeeded()) cost.AddCost(ret);
00194   }
00195 
00196   if (cost.GetCost() == 0) return CMD_ERROR; // no vehicles to sell
00197   return cost;
00198 }
00199 
00209 CommandCost CmdDepotMassAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00210 {
00211   VehicleList list;
00212   CommandCost cost = CommandCost(EXPENSES_NEW_VEHICLES);
00213   VehicleType vehicle_type = Extract<VehicleType, 0, 3>(p1);
00214 
00215   if (!IsCompanyBuildableVehicleType(vehicle_type)) return CMD_ERROR;
00216   if (!IsDepotTile(tile) || !IsTileOwner(tile, _current_company)) return CMD_ERROR;
00217 
00218   /* Get the list of vehicles in the depot */
00219   BuildDepotVehicleList(vehicle_type, tile, &list, &list, true);
00220 
00221   for (uint i = 0; i < list.Length(); i++) {
00222     const Vehicle *v = list[i];
00223 
00224     /* Ensure that the vehicle completely in the depot */
00225     if (!v->IsInDepot()) continue;
00226 
00227     CommandCost ret = DoCommand(0, v->index, 0, flags, CMD_AUTOREPLACE_VEHICLE);
00228 
00229     if (ret.Succeeded()) cost.AddCost(ret);
00230   }
00231   return cost;
00232 }
00233 
00238 static CommandCost GetRefitCost(EngineID engine_type)
00239 {
00240   ExpensesType expense_type;
00241   const Engine *e = Engine::Get(engine_type);
00242   Price base_price;
00243   uint cost_factor = e->info.refit_cost;
00244   switch (e->type) {
00245     case VEH_SHIP:
00246       base_price = PR_BUILD_VEHICLE_SHIP;
00247       expense_type = EXPENSES_SHIP_RUN;
00248       break;
00249 
00250     case VEH_ROAD:
00251       base_price = PR_BUILD_VEHICLE_ROAD;
00252       expense_type = EXPENSES_ROADVEH_RUN;
00253       break;
00254 
00255     case VEH_AIRCRAFT:
00256       base_price = PR_BUILD_VEHICLE_AIRCRAFT;
00257       expense_type = EXPENSES_AIRCRAFT_RUN;
00258       break;
00259 
00260     case VEH_TRAIN:
00261       base_price = (e->u.rail.railveh_type == RAILVEH_WAGON) ? PR_BUILD_VEHICLE_WAGON : PR_BUILD_VEHICLE_TRAIN;
00262       cost_factor <<= 1;
00263       expense_type = EXPENSES_TRAIN_RUN;
00264       break;
00265 
00266     default: NOT_REACHED();
00267   }
00268   return CommandCost(expense_type, GetPrice(base_price, cost_factor, e->grffile, -10));
00269 }
00270 
00281 CommandCost RefitVehicle(Vehicle *v, bool only_this, CargoID new_cid, byte new_subtype, DoCommandFlag flags)
00282 {
00283   CommandCost cost(v->GetExpenseType(false));
00284   uint total_capacity = 0;
00285 
00286   v->InvalidateNewGRFCacheOfChain();
00287   for (; v != NULL; v = (only_this ? NULL : v->Next())) {
00288     const Engine *e = Engine::Get(v->engine_type);
00289     if (!e->CanCarryCargo() || !HasBit(e->info.refit_mask, new_cid)) continue;
00290 
00291     /* Back up the vehicle's cargo type */
00292     CargoID temp_cid = v->cargo_type;
00293     byte temp_subtype = v->cargo_subtype;
00294     v->cargo_type = new_cid;
00295     v->cargo_subtype = new_subtype;
00296 
00297     uint16 mail_capacity;
00298     uint amount = GetVehicleCapacity(v, &mail_capacity);
00299     total_capacity += amount;
00300 
00301     /* Restore the original cargo type */
00302     v->cargo_type = temp_cid;
00303     v->cargo_subtype = temp_subtype;
00304 
00305     if (new_cid != v->cargo_type) {
00306       cost.AddCost(GetRefitCost(v->engine_type));
00307     }
00308 
00309     if (flags & DC_EXEC) {
00310       v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
00311       v->cargo_type = new_cid;
00312       v->cargo_cap = amount;
00313       v->cargo_subtype = new_subtype;
00314       if (v->type == VEH_AIRCRAFT) {
00315         Vehicle *u = v->Next();
00316         u->cargo_cap = mail_capacity;
00317         u->cargo.Truncate(mail_capacity);
00318       }
00319     }
00320   }
00321 
00322   _returned_refit_capacity = total_capacity;
00323   return cost;
00324 }
00325 
00330 static bool IsUniqueVehicleName(const char *name)
00331 {
00332   const Vehicle *v;
00333 
00334   FOR_ALL_VEHICLES(v) {
00335     if (v->name != NULL && strcmp(v->name, name) == 0) return false;
00336   }
00337 
00338   return true;
00339 }
00340 
00345 static void CloneVehicleName(const Vehicle *src, Vehicle *dst)
00346 {
00347   char buf[256];
00348 
00349   /* Find the position of the first digit in the last group of digits. */
00350   size_t number_position;
00351   for (number_position = strlen(src->name); number_position > 0; number_position--) {
00352     /* The design of UTF-8 lets this work simply without having to check
00353      * for UTF-8 sequences. */
00354     if (src->name[number_position - 1] < '0' || src->name[number_position - 1] > '9') break;
00355   }
00356 
00357   /* Format buffer and determine starting number. */
00358   int num;
00359   byte padding = 0;
00360   if (number_position == strlen(src->name)) {
00361     /* No digit at the end, so start at number 2. */
00362     strecpy(buf, src->name, lastof(buf));
00363     strecat(buf, " ", lastof(buf));
00364     number_position = strlen(buf);
00365     num = 2;
00366   } else {
00367     /* Found digits, parse them and start at the next number. */
00368     strecpy(buf, src->name, lastof(buf));
00369     buf[number_position] = '\0';
00370     char *endptr;
00371     num = strtol(&src->name[number_position], &endptr, 10) + 1;
00372     padding = endptr - &src->name[number_position];
00373   }
00374 
00375   /* Check if this name is already taken. */
00376   for (int max_iterations = 1000; max_iterations > 0; max_iterations--, num++) {
00377     /* Attach the number to the temporary name. */
00378     seprintf(&buf[number_position], lastof(buf), "%0*d", padding, num);
00379 
00380     /* Check the name is unique. */
00381     if (IsUniqueVehicleName(buf)) {
00382       dst->name = strdup(buf);
00383       break;
00384     }
00385   }
00386 
00387   /* All done. If we didn't find a name, it'll just use its default. */
00388 }
00389 
00398 CommandCost CmdCloneVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00399 {
00400   CommandCost total_cost(EXPENSES_NEW_VEHICLES);
00401   uint32 build_argument = 2;
00402 
00403   Vehicle *v = Vehicle::GetIfValid(p1);
00404   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
00405   Vehicle *v_front = v;
00406   Vehicle *w = NULL;
00407   Vehicle *w_front = NULL;
00408   Vehicle *w_rear = NULL;
00409 
00410   /*
00411    * v_front is the front engine in the original vehicle
00412    * v is the car/vehicle of the original vehicle, that is currently being copied
00413    * w_front is the front engine of the cloned vehicle
00414    * w is the car/vehicle currently being cloned
00415    * w_rear is the rear end of the cloned train. It's used to add more cars and is only used by trains
00416    */
00417 
00418   if (!CheckOwnership(v->owner)) return CMD_ERROR;
00419 
00420   if (v->type == VEH_TRAIN && (!Train::From(v)->IsFrontEngine() || Train::From(v)->crash_anim_pos >= 4400)) return CMD_ERROR;
00421 
00422   /* check that we can allocate enough vehicles */
00423   if (!(flags & DC_EXEC)) {
00424     int veh_counter = 0;
00425     do {
00426       veh_counter++;
00427     } while ((v = v->Next()) != NULL);
00428 
00429     if (!Vehicle::CanAllocateItem(veh_counter)) {
00430       return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00431     }
00432   }
00433 
00434   v = v_front;
00435 
00436   do {
00437     if (v->type == VEH_TRAIN && Train::From(v)->IsRearDualheaded()) {
00438       /* we build the rear ends of multiheaded trains with the front ones */
00439       continue;
00440     }
00441 
00442     /* In case we're building a multi headed vehicle and the maximum number of
00443      * vehicles is almost reached (e.g. max trains - 1) not all vehicles would
00444      * be cloned. When the non-primary engines were build they were seen as
00445      * 'new' vehicles whereas they would immediately be joined with a primary
00446      * engine. This caused the vehicle to be not build as 'the limit' had been
00447      * reached, resulting in partially build vehicles and such. */
00448     DoCommandFlag build_flags = flags;
00449     if ((flags & DC_EXEC) && !v->IsPrimaryVehicle()) build_flags |= DC_AUTOREPLACE;
00450 
00451     CommandCost cost = DoCommand(tile, v->engine_type, build_argument, build_flags, GetCmdBuildVeh(v));
00452     build_argument = 3; // ensure that we only assign a number to the first engine
00453 
00454     if (cost.Failed()) {
00455       /* Can't build a part, then sell the stuff we already made; clear up the mess */
00456       if (w_front != NULL) DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
00457       return cost;
00458     }
00459 
00460     total_cost.AddCost(cost);
00461 
00462     if (flags & DC_EXEC) {
00463       w = Vehicle::Get(_new_vehicle_id);
00464 
00465       if (v->type == VEH_TRAIN && HasBit(Train::From(v)->flags, VRF_REVERSE_DIRECTION)) {
00466         SetBit(Train::From(w)->flags, VRF_REVERSE_DIRECTION);
00467       }
00468 
00469       if (v->type == VEH_TRAIN && !Train::From(v)->IsFrontEngine()) {
00470         /* this s a train car
00471          * add this unit to the end of the train */
00472         CommandCost result = DoCommand(0, (w_rear->index << 16) | w->index, 1, flags, CMD_MOVE_RAIL_VEHICLE);
00473         if (result.Failed()) {
00474           /* The train can't be joined to make the same consist as the original.
00475            * Sell what we already made (clean up) and return an error.           */
00476           DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
00477           DoCommand(w_front->tile, w->index,       1, flags, GetCmdSellVeh(w));
00478           return result; // return error and the message returned from CMD_MOVE_RAIL_VEHICLE
00479         }
00480       } else {
00481         /* this is a front engine or not a train. */
00482         w_front = w;
00483         w->service_interval = v->service_interval;
00484       }
00485       w_rear = w; // trains needs to know the last car in the train, so they can add more in next loop
00486     }
00487   } while (v->type == VEH_TRAIN && (v = Train::From(v)->GetNextVehicle()) != NULL);
00488 
00489   if ((flags & DC_EXEC) && v_front->type == VEH_TRAIN) {
00490     /* for trains this needs to be the front engine due to the callback function */
00491     _new_vehicle_id = w_front->index;
00492   }
00493 
00494   if (flags & DC_EXEC) {
00495     /* Cloned vehicles belong to the same group */
00496     DoCommand(0, v_front->group_id, w_front->index, flags, CMD_ADD_VEHICLE_GROUP);
00497   }
00498 
00499 
00500   /* Take care of refitting. */
00501   w = w_front;
00502   v = v_front;
00503 
00504   /* Both building and refitting are influenced by newgrf callbacks, which
00505    * makes it impossible to accurately estimate the cloning costs. In
00506    * particular, it is possible for engines of the same type to be built with
00507    * different numbers of articulated parts, so when refitting we have to
00508    * loop over real vehicles first, and then the articulated parts of those
00509    * vehicles in a different loop. */
00510   do {
00511     do {
00512       if (flags & DC_EXEC) {
00513         assert(w != NULL);
00514 
00515         /* Find out what's the best sub type */
00516         byte subtype = GetBestFittingSubType(v, w);
00517         if (w->cargo_type != v->cargo_type || w->cargo_subtype != subtype) {
00518           CommandCost cost = DoCommand(0, w->index, v->cargo_type | (subtype << 8) | 1U << 16, flags, GetCmdRefitVeh(v));
00519           if (cost.Succeeded()) total_cost.AddCost(cost);
00520         }
00521 
00522         if (w->type == VEH_TRAIN && Train::From(w)->HasArticulatedPart()) {
00523           w = Train::From(w)->GetNextArticPart();
00524         } else if (w->type == VEH_ROAD && RoadVehicle::From(w)->HasArticulatedPart()) {
00525           w = w->Next();
00526         } else {
00527           break;
00528         }
00529       } else {
00530         const Engine *e = Engine::Get(v->engine_type);
00531         CargoID initial_cargo = (e->CanCarryCargo() ? e->GetDefaultCargoType() : (CargoID)CT_INVALID);
00532 
00533         if (v->cargo_type != initial_cargo && initial_cargo != CT_INVALID) {
00534           total_cost.AddCost(GetRefitCost(v->engine_type));
00535         }
00536       }
00537 
00538       if (v->type == VEH_TRAIN && Train::From(v)->HasArticulatedPart()) {
00539         v = Train::From(v)->GetNextArticPart();
00540       } else if (v->type == VEH_ROAD && RoadVehicle::From(v)->HasArticulatedPart()) {
00541         v = v->Next();
00542       } else {
00543         break;
00544       }
00545     } while (v != NULL);
00546 
00547     if ((flags & DC_EXEC) && v->type == VEH_TRAIN) w = Train::From(w)->GetNextVehicle();
00548   } while (v->type == VEH_TRAIN && (v = Train::From(v)->GetNextVehicle()) != NULL);
00549 
00550   if (flags & DC_EXEC) {
00551     /*
00552      * Set the orders of the vehicle. Cannot do it earlier as we need
00553      * the vehicle refitted before doing this, otherwise the moved
00554      * cargo types might not match (passenger vs non-passenger)
00555      */
00556     DoCommand(0, (v_front->index << 16) | w_front->index, p2 & 1 ? CO_SHARE : CO_COPY, flags, CMD_CLONE_ORDER);
00557 
00558     /* Now clone the vehicle's name, if it has one. */
00559     if (v_front->name != NULL) CloneVehicleName(v_front, w_front);
00560   }
00561 
00562   /* Since we can't estimate the cost of cloning a vehicle accurately we must
00563    * check whether the company has enough money manually. */
00564   if (!CheckCompanyHasMoney(total_cost)) {
00565     if (flags & DC_EXEC) {
00566       /* The vehicle has already been bought, so now it must be sold again. */
00567       DoCommand(w_front->tile, w_front->index, 1, flags, GetCmdSellVeh(w_front));
00568     }
00569     return total_cost;
00570   }
00571 
00572   return total_cost;
00573 }
00574 
00585 CommandCost SendAllVehiclesToDepot(VehicleType type, DoCommandFlag flags, bool service, Owner owner, uint16 vlw_flag, uint32 id)
00586 {
00587   VehicleList list;
00588 
00589   if (!GenerateVehicleSortList(&list, type, owner, id, vlw_flag)) return CMD_ERROR;
00590 
00591   /* Send all the vehicles to a depot */
00592   for (uint i = 0; i < list.Length(); i++) {
00593     const Vehicle *v = list[i];
00594     CommandCost ret = DoCommand(v->tile, v->index, (service ? 1 : 0) | DEPOT_DONT_CANCEL, flags, GetCmdSendToDepot(type));
00595 
00596     /* Return 0 if DC_EXEC is not set this is a valid goto depot command)
00597      * In this case we know that at least one vehicle can be sent to a depot
00598      * and we will issue the command. We can now safely quit the loop, knowing
00599      * it will succeed at least once. With DC_EXEC we really need to send them to the depot */
00600     if (ret.Succeeded() && !(flags & DC_EXEC)) {
00601       return CommandCost();
00602     }
00603   }
00604 
00605   return (flags & DC_EXEC) ? CommandCost() : CMD_ERROR;
00606 }
00607 
00616 CommandCost CmdRenameVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00617 {
00618   Vehicle *v = Vehicle::GetIfValid(p1);
00619   if (v == NULL || !v->IsPrimaryVehicle() || !CheckOwnership(v->owner)) return CMD_ERROR;
00620 
00621   bool reset = StrEmpty(text);
00622 
00623   if (!reset) {
00624     if (strlen(text) >= MAX_LENGTH_VEHICLE_NAME_BYTES) return CMD_ERROR;
00625     if (!(flags & DC_AUTOREPLACE) && !IsUniqueVehicleName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
00626   }
00627 
00628   if (flags & DC_EXEC) {
00629     free(v->name);
00630     v->name = reset ? NULL : strdup(text);
00631     InvalidateWindowClassesData(WC_TRAINS_LIST, 1);
00632     MarkWholeScreenDirty();
00633   }
00634 
00635   return CommandCost();
00636 }
00637 
00638 
00647 CommandCost CmdChangeServiceInt(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00648 {
00649   Vehicle *v = Vehicle::GetIfValid(p1);
00650   if (v == NULL || !v->IsPrimaryVehicle() || !CheckOwnership(v->owner)) return CMD_ERROR;
00651 
00652   uint16 serv_int = GetServiceIntervalClamped(p2, v->owner); // Double check the service interval from the user-input
00653   if (serv_int != p2) return CMD_ERROR;
00654 
00655   if (flags & DC_EXEC) {
00656     v->service_interval = serv_int;
00657     SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
00658   }
00659 
00660   return CommandCost();
00661 }

Generated on Wed Apr 21 20:31:56 2010 for OpenTTD by  doxygen 1.6.1