order_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 "debug.h"
00014 #include "cmd_helper.h"
00015 #include "command_func.h"
00016 #include "company_func.h"
00017 #include "news_func.h"
00018 #include "vehicle_gui.h"
00019 #include "strings_func.h"
00020 #include "window_func.h"
00021 #include "timetable.h"
00022 #include "vehicle_func.h"
00023 #include "depot_base.h"
00024 #include "core/pool_func.hpp"
00025 #include "aircraft.h"
00026 #include "roadveh.h"
00027 #include "station_base.h"
00028 #include "waypoint_base.h"
00029 #include "company_base.h"
00030 #include "infrastructure_func.h"
00031 
00032 #include "table/strings.h"
00033 
00034 /* DestinationID must be at least as large as every these below, because it can
00035  * be any of them
00036  */
00037 assert_compile(sizeof(DestinationID) >= sizeof(DepotID));
00038 assert_compile(sizeof(DestinationID) >= sizeof(StationID));
00039 
00040 OrderPool _order_pool("Order");
00041 INSTANTIATE_POOL_METHODS(Order)
00042 OrderListPool _orderlist_pool("OrderList");
00043 INSTANTIATE_POOL_METHODS(OrderList)
00044 
00049 void Order::Free()
00050 {
00051   this->type  = OT_NOTHING;
00052   this->flags = 0;
00053   this->dest  = 0;
00054   this->next  = NULL;
00055 }
00056 
00061 void Order::MakeGoToStation(StationID destination)
00062 {
00063   this->type = OT_GOTO_STATION;
00064   this->flags = 0;
00065   this->dest = destination;
00066 }
00067 
00077 void Order::MakeGoToDepot(DepotID destination, OrderDepotTypeFlags order, OrderNonStopFlags non_stop_type, OrderDepotActionFlags action, CargoID cargo, byte subtype)
00078 {
00079   this->type = OT_GOTO_DEPOT;
00080   this->SetDepotOrderType(order);
00081   this->SetDepotActionType(action);
00082   this->SetNonStopType(non_stop_type);
00083   this->dest = destination;
00084   this->SetRefit(cargo, subtype);
00085 }
00086 
00091 void Order::MakeGoToWaypoint(StationID destination)
00092 {
00093   this->type = OT_GOTO_WAYPOINT;
00094   this->flags = 0;
00095   this->dest = destination;
00096 }
00097 
00102 void Order::MakeLoading(bool ordered)
00103 {
00104   this->type = OT_LOADING;
00105   if (!ordered) this->flags = 0;
00106 }
00107 
00111 void Order::MakeLeaveStation()
00112 {
00113   this->type = OT_LEAVESTATION;
00114   this->flags = 0;
00115 }
00116 
00120 void Order::MakeDummy()
00121 {
00122   this->type = OT_DUMMY;
00123   this->flags = 0;
00124 }
00125 
00130 void Order::MakeConditional(VehicleOrderID order)
00131 {
00132   this->type = OT_CONDITIONAL;
00133   this->flags = order;
00134   this->dest = 0;
00135 }
00136 
00141 void Order::MakeImplicit(StationID destination)
00142 {
00143   this->type = OT_IMPLICIT;
00144   this->dest = destination;
00145 }
00146 
00153 void Order::SetRefit(CargoID cargo, byte subtype)
00154 {
00155   this->refit_cargo = cargo;
00156   this->refit_subtype = subtype;
00157 }
00158 
00164 bool Order::Equals(const Order &other) const
00165 {
00166   /* In case of go to nearest depot orders we need "only" compare the flags
00167    * with the other and not the nearest depot order bit or the actual
00168    * destination because those get clear/filled in during the order
00169    * evaluation. If we do not do this the order will continuously be seen as
00170    * a different order and it will try to find a "nearest depot" every tick. */
00171   if ((this->IsType(OT_GOTO_DEPOT) && this->type == other.type) &&
00172       ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0 ||
00173        (other.GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0)) {
00174     return this->GetDepotOrderType() == other.GetDepotOrderType() &&
00175         (this->GetDepotActionType() & ~ODATFB_NEAREST_DEPOT) == (other.GetDepotActionType() & ~ODATFB_NEAREST_DEPOT);
00176   }
00177 
00178   return this->type == other.type && this->flags == other.flags && this->dest == other.dest;
00179 }
00180 
00187 uint32 Order::Pack() const
00188 {
00189   return this->dest << 16 | this->flags << 8 | this->type;
00190 }
00191 
00197 uint16 Order::MapOldOrder() const
00198 {
00199   uint16 order = this->GetType();
00200   switch (this->type) {
00201     case OT_GOTO_STATION:
00202       if (this->GetUnloadType() & OUFB_UNLOAD) SetBit(order, 5);
00203       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
00204       if (this->GetNonStopType() & ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS) SetBit(order, 7);
00205       order |= GB(this->GetDestination(), 0, 8) << 8;
00206       break;
00207     case OT_GOTO_DEPOT:
00208       if (!(this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) SetBit(order, 6);
00209       SetBit(order, 7);
00210       order |= GB(this->GetDestination(), 0, 8) << 8;
00211       break;
00212     case OT_LOADING:
00213       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
00214       break;
00215   }
00216   return order;
00217 }
00218 
00223 Order::Order(uint32 packed)
00224 {
00225   this->type    = (OrderType)GB(packed,  0,  8);
00226   this->flags   = GB(packed,  8,  8);
00227   this->dest    = GB(packed, 16, 16);
00228   this->next    = NULL;
00229   this->refit_cargo   = CT_NO_REFIT;
00230   this->refit_subtype = 0;
00231   this->wait_time     = 0;
00232   this->travel_time   = 0;
00233 }
00234 
00240 void InvalidateVehicleOrder(const Vehicle *v, int data)
00241 {
00242   SetWindowDirty(WC_VEHICLE_VIEW, v->index);
00243 
00244   if (data != 0) {
00245     /* Calls SetDirty() too */
00246     InvalidateWindowData(WC_VEHICLE_ORDERS,    v->index, data);
00247     InvalidateWindowData(WC_VEHICLE_TIMETABLE, v->index, data);
00248     return;
00249   }
00250 
00251   SetWindowDirty(WC_VEHICLE_ORDERS,    v->index);
00252   SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
00253 }
00254 
00262 void Order::AssignOrder(const Order &other)
00263 {
00264   this->type  = other.type;
00265   this->flags = other.flags;
00266   this->dest  = other.dest;
00267 
00268   this->refit_cargo   = other.refit_cargo;
00269   this->refit_subtype = other.refit_subtype;
00270 
00271   this->wait_time   = other.wait_time;
00272   this->travel_time = other.travel_time;
00273 }
00274 
00280 void OrderList::Initialize(Order *chain, Vehicle *v)
00281 {
00282   this->first = chain;
00283   this->first_shared = v;
00284 
00285   this->num_orders = 0;
00286   this->num_manual_orders = 0;
00287   this->num_vehicles = 1;
00288   this->timetable_duration = 0;
00289 
00290   for (Order *o = this->first; o != NULL; o = o->next) {
00291     ++this->num_orders;
00292     if (!o->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
00293     this->timetable_duration += o->wait_time + o->travel_time;
00294   }
00295 
00296   for (Vehicle *u = this->first_shared->PreviousShared(); u != NULL; u = u->PreviousShared()) {
00297     ++this->num_vehicles;
00298     this->first_shared = u;
00299   }
00300 
00301   for (const Vehicle *u = v->NextShared(); u != NULL; u = u->NextShared()) ++this->num_vehicles;
00302 }
00303 
00309 void OrderList::FreeChain(bool keep_orderlist)
00310 {
00311   Order *next;
00312   for (Order *o = this->first; o != NULL; o = next) {
00313     next = o->next;
00314     delete o;
00315   }
00316 
00317   if (keep_orderlist) {
00318     this->first = NULL;
00319     this->num_orders = 0;
00320     this->num_manual_orders = 0;
00321     this->timetable_duration = 0;
00322   } else {
00323     delete this;
00324   }
00325 }
00326 
00332 Order *OrderList::GetOrderAt(int index) const
00333 {
00334   if (index < 0) return NULL;
00335 
00336   Order *order = this->first;
00337 
00338   while (order != NULL && index-- > 0) {
00339     order = order->next;
00340   }
00341   return order;
00342 }
00343 
00351 StationID OrderList::GetNextStoppingStation(const Order *next, StationID curr_station, uint hops) const
00352 {
00353   if (next == NULL || hops > this->GetNumOrders()) {
00354     return INVALID_STATION;
00355   }
00356 
00357   if (next->IsType(OT_CONDITIONAL)) {
00358     StationID skip_to = this->GetNextStoppingStation(this->GetOrderAt(next->GetConditionSkipToOrder()), curr_station, hops + 1);
00359     StationID advance = this->GetNextStoppingStation(this->GetNext(next), curr_station, hops + 1);
00360     return (skip_to == advance) ? skip_to : INVALID_STATION;
00361   }
00362 
00363   if (!(next->IsType(OT_GOTO_STATION) || next->IsType(OT_IMPLICIT)) ||
00364       (next->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) != 0 ||
00365       next->GetDestination() == curr_station) {
00366     return GetNextStoppingStation(this->GetNext(next), curr_station, hops + 1);
00367   }
00368 
00369   return next->GetDestination();
00370 }
00371 
00378 StationID OrderList::GetNextStoppingStation(VehicleOrderID curr_order, StationID curr_station) const
00379 {
00380   const Order *curr = this->GetOrderAt(curr_order);
00381   if (curr == NULL) {
00382     curr = this->GetFirstOrder();
00383     if (curr == NULL) {
00384       return INVALID_STATION;
00385     }
00386   }
00387 
00388   /* If we're not at a station or the current order doesn't yield the station
00389    * we're at, we have to check the current order; otherwise we have to check
00390    * the next one.
00391    */
00392   if (curr_station == INVALID_STATION || 
00393       !(curr->IsType(OT_GOTO_STATION) || curr->IsType(OT_IMPLICIT)) ||
00394       curr_station != curr->GetDestination()) {
00395     return this->GetNextStoppingStation(curr, curr_station, 0);
00396   } else {
00397     return this->GetNextStoppingStation(this->GetNext(curr), curr_station, 1);
00398   }
00399 }
00400 
00406 void OrderList::InsertOrderAt(Order *new_order, int index)
00407 {
00408   if (this->first == NULL) {
00409     this->first = new_order;
00410   } else {
00411     if (index == 0) {
00412       /* Insert as first or only order */
00413       new_order->next = this->first;
00414       this->first = new_order;
00415     } else if (index >= this->num_orders) {
00416       /* index is after the last order, add it to the end */
00417       this->GetLastOrder()->next = new_order;
00418     } else {
00419       /* Put the new order in between */
00420       Order *order = this->GetOrderAt(index - 1);
00421       new_order->next = order->next;
00422       order->next = new_order;
00423     }
00424   }
00425   ++this->num_orders;
00426   if (!new_order->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
00427   this->timetable_duration += new_order->wait_time + new_order->travel_time;
00428 }
00429 
00430 
00435 void OrderList::DeleteOrderAt(int index)
00436 {
00437   if (index >= this->num_orders) return;
00438 
00439   Order *to_remove;
00440 
00441   if (index == 0) {
00442     to_remove = this->first;
00443     this->first = to_remove->next;
00444   } else {
00445     Order *prev = GetOrderAt(index - 1);
00446     to_remove = prev->next;
00447     prev->next = to_remove->next;
00448   }
00449   --this->num_orders;
00450   if (!to_remove->IsType(OT_IMPLICIT)) --this->num_manual_orders;
00451   this->timetable_duration -= (to_remove->wait_time + to_remove->travel_time);
00452   delete to_remove;
00453 }
00454 
00460 void OrderList::MoveOrder(int from, int to)
00461 {
00462   if (from >= this->num_orders || to >= this->num_orders || from == to) return;
00463 
00464   Order *moving_one;
00465 
00466   /* Take the moving order out of the pointer-chain */
00467   if (from == 0) {
00468     moving_one = this->first;
00469     this->first = moving_one->next;
00470   } else {
00471     Order *one_before = GetOrderAt(from - 1);
00472     moving_one = one_before->next;
00473     one_before->next = moving_one->next;
00474   }
00475 
00476   /* Insert the moving_order again in the pointer-chain */
00477   if (to == 0) {
00478     moving_one->next = this->first;
00479     this->first = moving_one;
00480   } else {
00481     Order *one_before = GetOrderAt(to - 1);
00482     moving_one->next = one_before->next;
00483     one_before->next = moving_one;
00484   }
00485 }
00486 
00492 void OrderList::RemoveVehicle(Vehicle *v)
00493 {
00494   --this->num_vehicles;
00495   if (v == this->first_shared) this->first_shared = v->NextShared();
00496 }
00497 
00502 bool OrderList::IsVehicleInSharedOrdersList(const Vehicle *v) const
00503 {
00504   for (const Vehicle *v_shared = this->first_shared; v_shared != NULL; v_shared = v_shared->NextShared()) {
00505     if (v_shared == v) return true;
00506   }
00507 
00508   return false;
00509 }
00510 
00516 int OrderList::GetPositionInSharedOrderList(const Vehicle *v) const
00517 {
00518   int count = 0;
00519   for (const Vehicle *v_shared = v->PreviousShared(); v_shared != NULL; v_shared = v_shared->PreviousShared()) count++;
00520   return count;
00521 }
00522 
00527 bool OrderList::IsCompleteTimetable() const
00528 {
00529   for (Order *o = this->first; o != NULL; o = o->next) {
00530     /* Implicit orders are, by definition, not timetabled. */
00531     if (o->IsType(OT_IMPLICIT)) continue;
00532     if (!o->IsCompletelyTimetabled()) return false;
00533   }
00534   return true;
00535 }
00536 
00540 void OrderList::DebugCheckSanity() const
00541 {
00542   VehicleOrderID check_num_orders = 0;
00543   VehicleOrderID check_num_manual_orders = 0;
00544   uint check_num_vehicles = 0;
00545   Ticks check_timetable_duration = 0;
00546 
00547   DEBUG(misc, 6, "Checking OrderList %hu for sanity...", this->index);
00548 
00549   for (const Order *o = this->first; o != NULL; o = o->next) {
00550     ++check_num_orders;
00551     if (!o->IsType(OT_IMPLICIT)) ++check_num_manual_orders;
00552     check_timetable_duration += o->wait_time + o->travel_time;
00553   }
00554   assert(this->num_orders == check_num_orders);
00555   assert(this->num_manual_orders == check_num_manual_orders);
00556   assert(this->timetable_duration == check_timetable_duration);
00557 
00558   for (const Vehicle *v = this->first_shared; v != NULL; v = v->NextShared()) {
00559     ++check_num_vehicles;
00560     assert(v->orders.list == this);
00561   }
00562   assert(this->num_vehicles == check_num_vehicles);
00563   DEBUG(misc, 6, "... detected %u orders (%u manual), %u vehicles, %i ticks",
00564       (uint)this->num_orders, (uint)this->num_manual_orders,
00565       this->num_vehicles, this->timetable_duration);
00566 }
00567 
00575 static inline bool OrderGoesToStation(const Vehicle *v, const Order *o)
00576 {
00577   return o->IsType(OT_GOTO_STATION) ||
00578       (v->type == VEH_AIRCRAFT && o->IsType(OT_GOTO_DEPOT) && !(o->GetDepotActionType() & ODATFB_NEAREST_DEPOT));
00579 }
00580 
00587 static void DeleteOrderWarnings(const Vehicle *v)
00588 {
00589   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS);
00590   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_VOID_ORDER);
00591   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_DUPLICATE_ENTRY);
00592   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_INVALID_ENTRY);
00593 }
00594 
00600 TileIndex Order::GetLocation(const Vehicle *v) const
00601 {
00602   switch (this->GetType()) {
00603     case OT_GOTO_WAYPOINT:
00604     case OT_GOTO_STATION:
00605     case OT_IMPLICIT:
00606       return BaseStation::Get(this->GetDestination())->xy;
00607 
00608     case OT_GOTO_DEPOT:
00609       if ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) return INVALID_TILE;
00610       return (v->type == VEH_AIRCRAFT) ? Station::Get(this->GetDestination())->xy : Depot::Get(this->GetDestination())->xy;
00611 
00612     default:
00613       return INVALID_TILE;
00614   }
00615 }
00616 
00617 static uint GetOrderDistance(const Order *prev, const Order *cur, const Vehicle *v, int conditional_depth = 0)
00618 {
00619   assert(v->type == VEH_SHIP);
00620 
00621   if (cur->IsType(OT_CONDITIONAL)) {
00622     if (conditional_depth > v->GetNumOrders()) return 0;
00623 
00624     conditional_depth++;
00625 
00626     int dist1 = GetOrderDistance(prev, v->GetOrder(cur->GetConditionSkipToOrder()), v, conditional_depth);
00627     int dist2 = GetOrderDistance(prev, cur->next == NULL ? v->orders.list->GetFirstOrder() : cur->next, v, conditional_depth);
00628     return max(dist1, dist2);
00629   }
00630 
00631   TileIndex prev_tile = prev->GetLocation(v);
00632   TileIndex cur_tile = cur->GetLocation(v);
00633   if (prev_tile == INVALID_TILE || cur_tile == INVALID_TILE) return 0;
00634   return DistanceManhattan(prev_tile, cur_tile);
00635 }
00636 
00650 CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00651 {
00652   VehicleID veh          = GB(p1,  0, 20);
00653   VehicleOrderID sel_ord = GB(p1, 20, 8);
00654   Order new_order(p2);
00655 
00656   Vehicle *v = Vehicle::GetIfValid(veh);
00657   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
00658 
00659   CommandCost ret = CheckOwnership(v->owner);
00660   if (ret.Failed()) return ret;
00661 
00662   /* Check if the inserted order is to the correct destination (owner, type),
00663    * and has the correct flags if any */
00664   switch (new_order.GetType()) {
00665     case OT_GOTO_STATION: {
00666       const Station *st = Station::GetIfValid(new_order.GetDestination());
00667       if (st == NULL) return CMD_ERROR;
00668 
00669       if (st->owner != OWNER_NONE) {
00670         CommandCost ret = CheckInfraUsageAllowed(v->type, st->owner);
00671         if (ret.Failed()) return ret;
00672       }
00673 
00674       if (!CanVehicleUseStation(v, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
00675       for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
00676         if (!CanVehicleUseStation(u, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER_SHARED);
00677       }
00678 
00679       /* Non stop only allowed for ground vehicles. */
00680       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
00681 
00682       /* Filter invalid load/unload types. */
00683       switch (new_order.GetLoadType()) {
00684         case OLF_LOAD_IF_POSSIBLE: case OLFB_FULL_LOAD: case OLF_FULL_LOAD_ANY: case OLFB_NO_LOAD: break;
00685         default: return CMD_ERROR;
00686       }
00687       switch (new_order.GetUnloadType()) {
00688         case OUF_UNLOAD_IF_POSSIBLE: case OUFB_UNLOAD: case OUFB_TRANSFER: case OUFB_NO_UNLOAD: break;
00689         default: return CMD_ERROR;
00690       }
00691 
00692       /* Filter invalid stop locations */
00693       switch (new_order.GetStopLocation()) {
00694         case OSL_PLATFORM_NEAR_END:
00695         case OSL_PLATFORM_MIDDLE:
00696           if (v->type != VEH_TRAIN) return CMD_ERROR;
00697           /* FALL THROUGH */
00698         case OSL_PLATFORM_FAR_END:
00699           break;
00700 
00701         default:
00702           return CMD_ERROR;
00703       }
00704 
00705       break;
00706     }
00707 
00708     case OT_GOTO_DEPOT: {
00709       if ((new_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) == 0) {
00710         if (v->type == VEH_AIRCRAFT) {
00711           const Station *st = Station::GetIfValid(new_order.GetDestination());
00712 
00713           if (st == NULL) return CMD_ERROR;
00714 
00715           CommandCost ret = CheckInfraUsageAllowed(v->type, st->owner);
00716           if (ret.Failed()) return ret;
00717 
00718           if (!CanVehicleUseStation(v, st) || !st->airport.HasHangar()) {
00719             return CMD_ERROR;
00720           }
00721         } else {
00722           const Depot *dp = Depot::GetIfValid(new_order.GetDestination());
00723 
00724           if (dp == NULL) return CMD_ERROR;
00725 
00726           CommandCost ret = CheckInfraUsageAllowed(v->type, GetTileOwner(dp->xy), dp->xy);
00727           if (ret.Failed()) return ret;
00728 
00729           switch (v->type) {
00730             case VEH_TRAIN:
00731               if (!IsRailDepotTile(dp->xy)) return CMD_ERROR;
00732               break;
00733 
00734             case VEH_ROAD:
00735               if (!IsRoadDepotTile(dp->xy)) return CMD_ERROR;
00736               break;
00737 
00738             case VEH_SHIP:
00739               if (!IsShipDepotTile(dp->xy)) return CMD_ERROR;
00740               break;
00741 
00742             default: return CMD_ERROR;
00743           }
00744         }
00745       }
00746 
00747       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
00748       if (new_order.GetDepotOrderType() & ~(ODTFB_PART_OF_ORDERS | ((new_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0 ? ODTFB_SERVICE : 0))) return CMD_ERROR;
00749       if (new_order.GetDepotActionType() & ~(ODATFB_HALT | ODATFB_NEAREST_DEPOT)) return CMD_ERROR;
00750       if ((new_order.GetDepotOrderType() & ODTFB_SERVICE) && (new_order.GetDepotActionType() & ODATFB_HALT)) return CMD_ERROR;
00751       break;
00752     }
00753 
00754     case OT_GOTO_WAYPOINT: {
00755       const Waypoint *wp = Waypoint::GetIfValid(new_order.GetDestination());
00756       if (wp == NULL) return CMD_ERROR;
00757 
00758       switch (v->type) {
00759         default: return CMD_ERROR;
00760 
00761         case VEH_TRAIN: {
00762           if (!(wp->facilities & FACIL_TRAIN)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
00763 
00764           CommandCost ret = CheckInfraUsageAllowed(v->type, wp->owner);
00765           if (ret.Failed()) return ret;
00766           break;
00767         }
00768 
00769         case VEH_SHIP:
00770           if (!(wp->facilities & FACIL_DOCK)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
00771           if (wp->owner != OWNER_NONE) {
00772             CommandCost ret = CheckInfraUsageAllowed(v->type, wp->owner);
00773             if (ret.Failed()) return ret;
00774           }
00775           break;
00776       }
00777 
00778       /* Order flags can be any of the following for waypoints:
00779        * [non-stop]
00780        * non-stop orders (if any) are only valid for trains */
00781       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN) return CMD_ERROR;
00782       break;
00783     }
00784 
00785     case OT_CONDITIONAL: {
00786       VehicleOrderID skip_to = new_order.GetConditionSkipToOrder();
00787       if (skip_to != 0 && skip_to >= v->GetNumOrders()) return CMD_ERROR; // Always allow jumping to the first (even when there is no order).
00788       if (new_order.GetConditionVariable() > OCV_END) return CMD_ERROR;
00789 
00790       OrderConditionComparator occ = new_order.GetConditionComparator();
00791       if (occ > OCC_END) return CMD_ERROR;
00792       switch (new_order.GetConditionVariable()) {
00793         case OCV_REQUIRES_SERVICE:
00794           if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) return CMD_ERROR;
00795           break;
00796 
00797         case OCV_UNCONDITIONALLY:
00798           if (occ != OCC_EQUALS) return CMD_ERROR;
00799           if (new_order.GetConditionValue() != 0) return CMD_ERROR;
00800           break;
00801 
00802         case OCV_LOAD_PERCENTAGE:
00803         case OCV_RELIABILITY:
00804           if (new_order.GetConditionValue() > 100) return CMD_ERROR;
00805           /* FALL THROUGH */
00806         default:
00807           if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) return CMD_ERROR;
00808           break;
00809       }
00810       break;
00811     }
00812 
00813     default: return CMD_ERROR;
00814   }
00815 
00816   if (sel_ord > v->GetNumOrders()) return CMD_ERROR;
00817 
00818   if (v->GetNumOrders() >= MAX_VEH_ORDER_ID) return_cmd_error(STR_ERROR_TOO_MANY_ORDERS);
00819   if (!Order::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
00820   if (v->orders.list == NULL && !OrderList::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
00821 
00822   if (v->type == VEH_SHIP && _settings_game.pf.pathfinder_for_ships != VPF_NPF) {
00823     /* Make sure the new destination is not too far away from the previous */
00824     const Order *prev = NULL;
00825     uint n = 0;
00826 
00827     /* Find the last goto station or depot order before the insert location.
00828      * If the order is to be inserted at the beginning of the order list this
00829      * finds the last order in the list. */
00830     const Order *o;
00831     FOR_VEHICLE_ORDERS(v, o) {
00832       switch (o->GetType()) {
00833         case OT_GOTO_STATION:
00834         case OT_GOTO_DEPOT:
00835         case OT_GOTO_WAYPOINT:
00836           prev = o;
00837           break;
00838 
00839         default: break;
00840       }
00841       if (++n == sel_ord && prev != NULL) break;
00842     }
00843     if (prev != NULL) {
00844       uint dist = GetOrderDistance(prev, &new_order, v);
00845       if (dist >= 130) {
00846         return_cmd_error(STR_ERROR_TOO_FAR_FROM_PREVIOUS_DESTINATION);
00847       }
00848     }
00849   }
00850 
00851   if (flags & DC_EXEC) {
00852     Order *new_o = new Order();
00853     new_o->AssignOrder(new_order);
00854     InsertOrder(v, new_o, sel_ord);
00855   }
00856 
00857   return CommandCost();
00858 }
00859 
00866 void InsertOrder(Vehicle *v, Order *new_o, VehicleOrderID sel_ord)
00867 {
00868   /* Create new order and link in list */
00869   if (v->orders.list == NULL) {
00870     v->orders.list = new OrderList(new_o, v);
00871   } else {
00872     v->orders.list->InsertOrderAt(new_o, sel_ord);
00873   }
00874 
00875   Vehicle *u = v->FirstShared();
00876   DeleteOrderWarnings(u);
00877   for (; u != NULL; u = u->NextShared()) {
00878     assert(v->orders.list == u->orders.list);
00879 
00880     /* If there is added an order before the current one, we need
00881      * to update the selected order. We do not change implicit/real order indices though.
00882      * If the new order is between the current implicit order and real order, the implicit order will
00883      * later skip the inserted order. */
00884     if (sel_ord <= u->cur_real_order_index) {
00885       uint cur = u->cur_real_order_index + 1;
00886       /* Check if we don't go out of bound */
00887       if (cur < u->GetNumOrders()) {
00888         u->cur_real_order_index = cur;
00889       }
00890     }
00891     if (sel_ord == u->cur_implicit_order_index && u->IsGroundVehicle()) {
00892       /* We are inserting an order just before the current implicit order.
00893        * We do not know whether we will reach current implicit or the newly inserted order first.
00894        * So, disable creation of implicit orders until we are on track again. */
00895       uint16 &gv_flags = u->GetGroundVehicleFlags();
00896       SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
00897     }
00898     if (sel_ord <= u->cur_implicit_order_index) {
00899       uint cur = u->cur_implicit_order_index + 1;
00900       /* Check if we don't go out of bound */
00901       if (cur < u->GetNumOrders()) {
00902         u->cur_implicit_order_index = cur;
00903       }
00904     }
00905     /* Update any possible open window of the vehicle */
00906     InvalidateVehicleOrder(u, INVALID_VEH_ORDER_ID | (sel_ord << 8));
00907 
00908     RecalcFrozenIfLoading(u);
00909   }
00910 
00911   /* As we insert an order, the order to skip to will be 'wrong'. */
00912   VehicleOrderID cur_order_id = 0;
00913   Order *order;
00914   FOR_VEHICLE_ORDERS(v, order) {
00915     if (order->IsType(OT_CONDITIONAL)) {
00916       VehicleOrderID order_id = order->GetConditionSkipToOrder();
00917       if (order_id >= sel_ord) {
00918         order->SetConditionSkipToOrder(order_id + 1);
00919       }
00920       if (order_id == cur_order_id) {
00921         order->SetConditionSkipToOrder((order_id + 1) % v->GetNumOrders());
00922       }
00923     }
00924     cur_order_id++;
00925   }
00926 
00927   /* Make sure to rebuild the whole list */
00928   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
00929 }
00930 
00936 static CommandCost DecloneOrder(Vehicle *dst, DoCommandFlag flags)
00937 {
00938   if (flags & DC_EXEC) {
00939     DeleteVehicleOrders(dst);
00940     InvalidateVehicleOrder(dst, -1);
00941 
00942     RecalcFrozenIfLoading(dst);
00943 
00944     InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
00945   }
00946   return CommandCost();
00947 }
00948 
00958 CommandCost CmdDeleteOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00959 {
00960   VehicleID veh_id = GB(p1, 0, 20);
00961   VehicleOrderID sel_ord = GB(p2, 0, 8);
00962 
00963   Vehicle *v = Vehicle::GetIfValid(veh_id);
00964 
00965   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
00966 
00967   CommandCost ret = CheckOwnership(v->owner);
00968   if (ret.Failed()) return ret;
00969 
00970   /* If we did not select an order, we maybe want to de-clone the orders */
00971   if (sel_ord >= v->GetNumOrders()) return DecloneOrder(v, flags);
00972 
00973   if (v->GetOrder(sel_ord) == NULL) return CMD_ERROR;
00974 
00975   if (flags & DC_EXEC) DeleteOrder(v, sel_ord);
00976   return CommandCost();
00977 }
00978 
00983 static void CancelLoadingDueToDeletedOrder(Vehicle *v)
00984 {
00985   assert(v->current_order.IsType(OT_LOADING));
00986   /* NON-stop flag is misused to see if a train is in a station that is
00987    * on his order list or not */
00988   v->current_order.SetNonStopType(ONSF_STOP_EVERYWHERE);
00989   /* When full loading, "cancel" that order so the vehicle doesn't
00990    * stay indefinitely at this station anymore. */
00991   if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) v->current_order.SetLoadType(OLF_LOAD_IF_POSSIBLE);
00992 }
00993 
00999 void DeleteOrder(Vehicle *v, VehicleOrderID sel_ord)
01000 {
01001   v->orders.list->DeleteOrderAt(sel_ord);
01002 
01003   Vehicle *u = v->FirstShared();
01004   DeleteOrderWarnings(u);
01005   for (; u != NULL; u = u->NextShared()) {
01006     assert(v->orders.list == u->orders.list);
01007 
01008     if (sel_ord == u->cur_real_order_index && u->current_order.IsType(OT_LOADING)) {
01009       CancelLoadingDueToDeletedOrder(u);
01010     }
01011 
01012     if (sel_ord < u->cur_real_order_index) {
01013       u->cur_real_order_index--;
01014     } else if (sel_ord == u->cur_real_order_index) {
01015       u->UpdateRealOrderIndex();
01016     }
01017 
01018     if (sel_ord < u->cur_implicit_order_index) {
01019       u->cur_implicit_order_index--;
01020     } else if (sel_ord == u->cur_implicit_order_index) {
01021       /* Make sure the index is valid */
01022       if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
01023 
01024       /* Skip non-implicit orders for the implicit-order-index (e.g. if the current implicit order was deleted */
01025       while (u->cur_implicit_order_index != u->cur_real_order_index && !u->GetOrder(u->cur_implicit_order_index)->IsType(OT_IMPLICIT)) {
01026         u->cur_implicit_order_index++;
01027         if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
01028       }
01029     }
01030 
01031     /* Update any possible open window of the vehicle */
01032     InvalidateVehicleOrder(u, sel_ord | (INVALID_VEH_ORDER_ID << 8));
01033 
01034     RecalcFrozenIfLoading(u);
01035   }
01036 
01037   /* As we delete an order, the order to skip to will be 'wrong'. */
01038   VehicleOrderID cur_order_id = 0;
01039   Order *order = NULL;
01040   FOR_VEHICLE_ORDERS(v, order) {
01041     if (order->IsType(OT_CONDITIONAL)) {
01042       VehicleOrderID order_id = order->GetConditionSkipToOrder();
01043       if (order_id >= sel_ord) {
01044         order_id = max(order_id - 1, 0);
01045       }
01046       if (order_id == cur_order_id) {
01047         order_id = (order_id + 1) % v->GetNumOrders();
01048       }
01049       order->SetConditionSkipToOrder(order_id);
01050     }
01051     cur_order_id++;
01052   }
01053 
01054   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
01055 }
01056 
01066 CommandCost CmdSkipToOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01067 {
01068   VehicleID veh_id = GB(p1, 0, 20);
01069   VehicleOrderID sel_ord = GB(p2, 0, 8);
01070 
01071   Vehicle *v = Vehicle::GetIfValid(veh_id);
01072 
01073   if (v == NULL || !v->IsPrimaryVehicle() || sel_ord == v->cur_implicit_order_index || sel_ord >= v->GetNumOrders() || v->GetNumOrders() < 2) return CMD_ERROR;
01074 
01075   CommandCost ret = CheckOwnership(v->owner);
01076   if (ret.Failed()) return ret;
01077 
01078   if (flags & DC_EXEC) {
01079     if (v->current_order.IsType(OT_LOADING)) v->LeaveStation();
01080 
01081     v->cur_implicit_order_index = v->cur_real_order_index = sel_ord;
01082     v->UpdateRealOrderIndex();
01083 
01084     InvalidateVehicleOrder(v, -2);
01085 
01086     if (_settings_game.order.timetable_separation) v->ClearSeparation();
01087     if (_settings_game.order.timetable_separation) ClrBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
01088   }
01089 
01090   /* We have an aircraft/ship, they have a mini-schedule, so update them all */
01091   if (v->type == VEH_AIRCRAFT) SetWindowClassesDirty(WC_AIRCRAFT_LIST);
01092   if (v->type == VEH_SHIP) SetWindowClassesDirty(WC_SHIPS_LIST);
01093 
01094   return CommandCost();
01095 }
01096 
01110 CommandCost CmdMoveOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01111 {
01112   VehicleID veh = GB(p1, 0, 20);
01113   VehicleOrderID moving_order = GB(p2,  0, 16);
01114   VehicleOrderID target_order = GB(p2, 16, 16);
01115 
01116   Vehicle *v = Vehicle::GetIfValid(veh);
01117   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
01118 
01119   CommandCost ret = CheckOwnership(v->owner);
01120   if (ret.Failed()) return ret;
01121 
01122   /* Don't make senseless movements */
01123   if (moving_order >= v->GetNumOrders() || target_order >= v->GetNumOrders() ||
01124       moving_order == target_order || v->GetNumOrders() <= 1) return CMD_ERROR;
01125 
01126   Order *moving_one = v->GetOrder(moving_order);
01127   /* Don't move an empty order */
01128   if (moving_one == NULL) return CMD_ERROR;
01129 
01130   if (flags & DC_EXEC) {
01131     v->orders.list->MoveOrder(moving_order, target_order);
01132 
01133     /* Update shared list */
01134     Vehicle *u = v->FirstShared();
01135 
01136     DeleteOrderWarnings(u);
01137 
01138     for (; u != NULL; u = u->NextShared()) {
01139       /* Update the current order.
01140        * There are multiple ways to move orders, which result in cur_implicit_order_index
01141        * and cur_real_order_index to not longer make any sense. E.g. moving another
01142        * real order between them.
01143        *
01144        * Basically one could choose to preserve either of them, but not both.
01145        * While both ways are suitable in this or that case from a human point of view, neither
01146        * of them makes really sense.
01147        * However, from an AI point of view, preserving cur_real_order_index is the most
01148        * predictable and transparent behaviour.
01149        *
01150        * With that decision it basically does not matter what we do to cur_implicit_order_index.
01151        * If we change orders between the implict- and real-index, the implicit orders are mostly likely
01152        * completely out-dated anyway. So, keep it simple and just keep cur_implicit_order_index as well.
01153        * The worst which can happen is that a lot of implicit orders are removed when reaching current_order.
01154        */
01155       if (u->cur_real_order_index == moving_order) {
01156         u->cur_real_order_index = target_order;
01157       } else if (u->cur_real_order_index > moving_order && u->cur_real_order_index <= target_order) {
01158         u->cur_real_order_index--;
01159       } else if (u->cur_real_order_index < moving_order && u->cur_real_order_index >= target_order) {
01160         u->cur_real_order_index++;
01161       }
01162 
01163       if (u->cur_implicit_order_index == moving_order) {
01164         u->cur_implicit_order_index = target_order;
01165       } else if (u->cur_implicit_order_index > moving_order && u->cur_implicit_order_index <= target_order) {
01166         u->cur_implicit_order_index--;
01167       } else if (u->cur_implicit_order_index < moving_order && u->cur_implicit_order_index >= target_order) {
01168         u->cur_implicit_order_index++;
01169       }
01170 
01171       assert(v->orders.list == u->orders.list);
01172       /* Update any possible open window of the vehicle */
01173       InvalidateVehicleOrder(u, moving_order | (target_order << 8));
01174 
01175       RecalcFrozenIfLoading(u);
01176     }
01177 
01178     /* As we move an order, the order to skip to will be 'wrong'. */
01179     Order *order;
01180     FOR_VEHICLE_ORDERS(v, order) {
01181       if (order->IsType(OT_CONDITIONAL)) {
01182         VehicleOrderID order_id = order->GetConditionSkipToOrder();
01183         if (order_id == moving_order) {
01184           order_id = target_order;
01185         } else if (order_id > moving_order && order_id <= target_order) {
01186           order_id--;
01187         } else if (order_id < moving_order && order_id >= target_order) {
01188           order_id++;
01189         }
01190         order->SetConditionSkipToOrder(order_id);
01191       }
01192     }
01193 
01194     /* Make sure to rebuild the whole list */
01195     InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
01196   }
01197 
01198   return CommandCost();
01199 }
01200 
01216 CommandCost CmdModifyOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01217 {
01218   VehicleOrderID sel_ord = GB(p1, 20,  8);
01219   VehicleID veh          = GB(p1,  0, 20);
01220   ModifyOrderFlags mof   = Extract<ModifyOrderFlags, 0, 4>(p2);
01221   uint16 data            = GB(p2,  4, 11);
01222 
01223   if (mof >= MOF_END) return CMD_ERROR;
01224 
01225   Vehicle *v = Vehicle::GetIfValid(veh);
01226   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
01227 
01228   CommandCost ret = CheckOwnership(v->owner);
01229   if (ret.Failed()) return ret;
01230 
01231   /* Is it a valid order? */
01232   if (sel_ord >= v->GetNumOrders()) return CMD_ERROR;
01233 
01234   Order *order = v->GetOrder(sel_ord);
01235   switch (order->GetType()) {
01236     case OT_GOTO_STATION:
01237       if (mof == MOF_COND_VARIABLE || mof == MOF_COND_COMPARATOR || mof == MOF_DEPOT_ACTION || mof == MOF_COND_VALUE) return CMD_ERROR;
01238       break;
01239 
01240     case OT_GOTO_DEPOT:
01241       if (mof != MOF_NON_STOP && mof != MOF_DEPOT_ACTION) return CMD_ERROR;
01242       break;
01243 
01244     case OT_GOTO_WAYPOINT:
01245       if (mof != MOF_NON_STOP) return CMD_ERROR;
01246       break;
01247 
01248     case OT_CONDITIONAL:
01249       if (mof != MOF_COND_VARIABLE && mof != MOF_COND_COMPARATOR && mof != MOF_COND_VALUE && mof != MOF_COND_DESTINATION) return CMD_ERROR;
01250       break;
01251 
01252     default:
01253       return CMD_ERROR;
01254   }
01255 
01256   switch (mof) {
01257     default: NOT_REACHED();
01258 
01259     case MOF_NON_STOP:
01260       if (!v->IsGroundVehicle()) return CMD_ERROR;
01261       if (data >= ONSF_END) return CMD_ERROR;
01262       if (data == order->GetNonStopType()) return CMD_ERROR;
01263       break;
01264 
01265     case MOF_STOP_LOCATION:
01266       if (v->type != VEH_TRAIN) return CMD_ERROR;
01267       if (data >= OSL_END) return CMD_ERROR;
01268       break;
01269 
01270     case MOF_UNLOAD:
01271       if ((data & ~(OUFB_UNLOAD | OUFB_TRANSFER | OUFB_NO_UNLOAD)) != 0) return CMD_ERROR;
01272       /* Unload and no-unload are mutual exclusive and so are transfer and no unload. */
01273       if (data != 0 && ((data & (OUFB_UNLOAD | OUFB_TRANSFER)) != 0) == ((data & OUFB_NO_UNLOAD) != 0)) return CMD_ERROR;
01274       if (data == order->GetUnloadType()) return CMD_ERROR;
01275       break;
01276 
01277     case MOF_LOAD:
01278       if (data > OLFB_NO_LOAD || data == 1) return CMD_ERROR;
01279       if (data == order->GetLoadType()) return CMD_ERROR;
01280       break;
01281 
01282     case MOF_DEPOT_ACTION:
01283       if (data >= DA_END) return CMD_ERROR;
01284       break;
01285 
01286     case MOF_COND_VARIABLE:
01287       if (data >= OCV_END) return CMD_ERROR;
01288       break;
01289 
01290     case MOF_COND_COMPARATOR:
01291       if (data >= OCC_END) return CMD_ERROR;
01292       switch (order->GetConditionVariable()) {
01293         case OCV_UNCONDITIONALLY: return CMD_ERROR;
01294 
01295         case OCV_REQUIRES_SERVICE:
01296           if (data != OCC_IS_TRUE && data != OCC_IS_FALSE) return CMD_ERROR;
01297           break;
01298 
01299         default:
01300           if (data == OCC_IS_TRUE || data == OCC_IS_FALSE) return CMD_ERROR;
01301           break;
01302       }
01303       break;
01304 
01305     case MOF_COND_VALUE:
01306       switch (order->GetConditionVariable()) {
01307         case OCV_UNCONDITIONALLY: return CMD_ERROR;
01308 
01309         case OCV_LOAD_PERCENTAGE:
01310         case OCV_RELIABILITY:
01311           if (data > 100) return CMD_ERROR;
01312           break;
01313 
01314         default:
01315           if (data > 2047) return CMD_ERROR;
01316           break;
01317       }
01318       break;
01319 
01320     case MOF_COND_DESTINATION:
01321       if (data >= v->GetNumOrders()) return CMD_ERROR;
01322       break;
01323   }
01324 
01325   if (flags & DC_EXEC) {
01326     switch (mof) {
01327       case MOF_NON_STOP:
01328         order->SetNonStopType((OrderNonStopFlags)data);
01329         break;
01330 
01331       case MOF_STOP_LOCATION:
01332         order->SetStopLocation((OrderStopLocation)data);
01333         break;
01334 
01335       case MOF_UNLOAD:
01336         order->SetUnloadType((OrderUnloadFlags)data);
01337         break;
01338 
01339       case MOF_LOAD:
01340         order->SetLoadType((OrderLoadFlags)data);
01341         break;
01342 
01343       case MOF_DEPOT_ACTION: {
01344         switch (data) {
01345           case DA_ALWAYS_GO:
01346             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
01347             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
01348             break;
01349 
01350           case DA_SERVICE:
01351             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() | ODTFB_SERVICE));
01352             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
01353             break;
01354 
01355           case DA_STOP:
01356             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
01357             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() | ODATFB_HALT));
01358             break;
01359 
01360           default:
01361             NOT_REACHED();
01362         }
01363         break;
01364       }
01365 
01366       case MOF_COND_VARIABLE: {
01367         order->SetConditionVariable((OrderConditionVariable)data);
01368 
01369         OrderConditionComparator occ = order->GetConditionComparator();
01370         switch (order->GetConditionVariable()) {
01371           case OCV_UNCONDITIONALLY:
01372             order->SetConditionComparator(OCC_EQUALS);
01373             order->SetConditionValue(0);
01374             break;
01375 
01376           case OCV_REQUIRES_SERVICE:
01377             if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) order->SetConditionComparator(OCC_IS_TRUE);
01378             break;
01379 
01380           case OCV_LOAD_PERCENTAGE:
01381           case OCV_RELIABILITY:
01382             if (order->GetConditionValue() > 100) order->SetConditionValue(100);
01383             /* FALL THROUGH */
01384           default:
01385             if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) order->SetConditionComparator(OCC_EQUALS);
01386             break;
01387         }
01388         break;
01389       }
01390 
01391       case MOF_COND_COMPARATOR:
01392         order->SetConditionComparator((OrderConditionComparator)data);
01393         break;
01394 
01395       case MOF_COND_VALUE:
01396         order->SetConditionValue(data);
01397         break;
01398 
01399       case MOF_COND_DESTINATION:
01400         order->SetConditionSkipToOrder(data);
01401         break;
01402 
01403       default: NOT_REACHED();
01404     }
01405 
01406     /* Update the windows and full load flags, also for vehicles that share the same order list */
01407     Vehicle *u = v->FirstShared();
01408     DeleteOrderWarnings(u);
01409     for (; u != NULL; u = u->NextShared()) {
01410       /* Toggle u->current_order "Full load" flag if it changed.
01411        * However, as the same flag is used for depot orders, check
01412        * whether we are not going to a depot as there are three
01413        * cases where the full load flag can be active and only
01414        * one case where the flag is used for depot orders. In the
01415        * other cases for the OrderTypeByte the flags are not used,
01416        * so do not care and those orders should not be active
01417        * when this function is called.
01418        */
01419       if (sel_ord == u->cur_real_order_index &&
01420           (u->current_order.IsType(OT_GOTO_STATION) || u->current_order.IsType(OT_LOADING)) &&
01421           u->current_order.GetLoadType() != order->GetLoadType()) {
01422         u->current_order.SetLoadType(order->GetLoadType());
01423       }
01424       InvalidateVehicleOrder(u, -2);
01425 
01426       RecalcFrozenIfLoading(u);
01427     }
01428   }
01429 
01430   return CommandCost();
01431 }
01432 
01444 CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01445 {
01446   VehicleID veh_src = GB(p2, 0, 20);
01447   VehicleID veh_dst = GB(p1, 0, 20);
01448 
01449   Vehicle *dst = Vehicle::GetIfValid(veh_dst);
01450   if (dst == NULL || !dst->IsPrimaryVehicle()) return CMD_ERROR;
01451 
01452   CommandCost ret = CheckOwnership(dst->owner);
01453   if (ret.Failed()) return ret;
01454 
01455   switch (GB(p1, 30, 2)) {
01456     case CO_SHARE: {
01457       Vehicle *src = Vehicle::GetIfValid(veh_src);
01458 
01459       /* Sanity checks */
01460       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
01461 
01462       CommandCost ret = CheckOwnership(src->owner);
01463       if (ret.Failed()) return ret;
01464 
01465       /* Trucks can't share orders with busses (and visa versa) */
01466       if (src->type == VEH_ROAD && RoadVehicle::From(src)->IsBus() != RoadVehicle::From(dst)->IsBus()) {
01467         return CMD_ERROR;
01468       }
01469 
01470       /* Is the vehicle already in the shared list? */
01471       if (src->FirstShared() == dst->FirstShared()) return CMD_ERROR;
01472 
01473       const Order *order;
01474 
01475       FOR_VEHICLE_ORDERS(src, order) {
01476         if (OrderGoesToStation(dst, order) &&
01477             !CanVehicleUseStation(dst, Station::Get(order->GetDestination()))) {
01478           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
01479         }
01480       }
01481 
01482       if (src->orders.list == NULL && !OrderList::CanAllocateItem()) {
01483         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01484       }
01485 
01486       if (flags & DC_EXEC) {
01487         /* If the destination vehicle had a OrderList, destroy it.
01488          * We only reset the order indices, if the new orders are obviously different.
01489          * (We mainly do this to keep the order indices valid and in range.) */
01490         DeleteVehicleOrders(dst, false, dst->GetNumOrders() != src->GetNumOrders());
01491 
01492         dst->orders.list = src->orders.list;
01493 
01494         /* Link this vehicle in the shared-list */
01495         dst->AddToShared(src);
01496 
01497         /* Set automation bit if target has it */
01498         if (HasBit(src->vehicle_flags, VF_AUTOMATE_TIMETABLE))
01499           SetBit(dst->vehicle_flags, VF_AUTOMATE_TIMETABLE);
01500 
01501         if (_settings_game.order.timetable_separation) dst->ClearSeparation();
01502         if (_settings_game.order.timetable_separation) ClrBit(dst->vehicle_flags, VF_TIMETABLE_STARTED);
01503 
01504         InvalidateVehicleOrder(dst, -1);
01505         InvalidateVehicleOrder(src, -2);
01506 
01507         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
01508       }
01509       break;
01510     }
01511 
01512     case CO_COPY: {
01513       Vehicle *src = Vehicle::GetIfValid(veh_src);
01514 
01515       /* Sanity checks */
01516       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
01517 
01518       CommandCost ret = CheckOwnership(src->owner);
01519       if (ret.Failed()) return ret;
01520 
01521       /* Trucks can't copy all the orders from busses (and visa versa),
01522        * and neither can helicopters and aircarft. */
01523       const Order *order;
01524       FOR_VEHICLE_ORDERS(src, order) {
01525         if (OrderGoesToStation(dst, order) &&
01526             !CanVehicleUseStation(dst, Station::Get(order->GetDestination()))) {
01527           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
01528         }
01529       }
01530 
01531       /* make sure there are orders available */
01532       int delta = dst->IsOrderListShared() ? src->GetNumOrders() + 1 : src->GetNumOrders() - dst->GetNumOrders();
01533       if (!Order::CanAllocateItem(delta) ||
01534           ((dst->orders.list == NULL || dst->IsOrderListShared()) && !OrderList::CanAllocateItem())) {
01535         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01536       }
01537 
01538       if (flags & DC_EXEC) {
01539         const Order *order;
01540         Order *first = NULL;
01541         Order **order_dst;
01542 
01543         /* If the destination vehicle had an order list, destroy the chain but keep the OrderList.
01544          * We only reset the order indices, if the new orders are obviously different.
01545          * (We mainly do this to keep the order indices valid and in range.) */
01546         DeleteVehicleOrders(dst, true, dst->GetNumOrders() != src->GetNumOrders());
01547 
01548         order_dst = &first;
01549         FOR_VEHICLE_ORDERS(src, order) {
01550           *order_dst = new Order();
01551           (*order_dst)->AssignOrder(*order);
01552           order_dst = &(*order_dst)->next;
01553         }
01554         if (dst->orders.list == NULL) {
01555           dst->orders.list = new OrderList(first, dst);
01556         } else {
01557           assert(dst->orders.list->GetFirstOrder() == NULL);
01558           assert(!dst->orders.list->IsShared());
01559           delete dst->orders.list;
01560           assert(OrderList::CanAllocateItem());
01561           dst->orders.list = new OrderList(first, dst);
01562         }
01563 
01564         InvalidateVehicleOrder(dst, -1);
01565 
01566         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
01567       }
01568       break;
01569     }
01570 
01571     case CO_UNSHARE: return DecloneOrder(dst, flags);
01572     default: return CMD_ERROR;
01573   }
01574 
01575   RecalcFrozenIfLoading(dst);
01576 
01577   return CommandCost();
01578 }
01579 
01592 CommandCost CmdOrderRefit(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01593 {
01594   VehicleID veh = GB(p1, 0, 20);
01595   VehicleOrderID order_number  = GB(p2, 16, 8);
01596   CargoID cargo = GB(p2, 0, 8);
01597   byte subtype  = GB(p2, 8, 8);
01598 
01599   if (cargo >= NUM_CARGO && cargo != CT_NO_REFIT) return CMD_ERROR;
01600 
01601   const Vehicle *v = Vehicle::GetIfValid(veh);
01602   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
01603 
01604   CommandCost ret = CheckOwnership(v->owner);
01605   if (ret.Failed()) return ret;
01606 
01607   Order *order = v->GetOrder(order_number);
01608   if (order == NULL) return CMD_ERROR;
01609 
01610   if (flags & DC_EXEC) {
01611     order->SetRefit(cargo, subtype);
01612 
01613     for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
01614       /* Update any possible open window of the vehicle */
01615       InvalidateVehicleOrder(u, -2);
01616 
01617       /* If the vehicle already got the current depot set as current order, then update current order as well */
01618       if (u->cur_real_order_index == order_number && (u->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) {
01619         u->current_order.SetRefit(cargo, subtype);
01620       }
01621     }
01622   }
01623 
01624   return CommandCost();
01625 }
01626 
01627 
01633 void CheckOrders(const Vehicle *v)
01634 {
01635   /* Does the user wants us to check things? */
01636   if (_settings_client.gui.order_review_system == 0) return;
01637 
01638   /* Do nothing for crashed vehicles */
01639   if (v->vehstatus & VS_CRASHED) return;
01640 
01641   /* Do nothing for stopped vehicles if setting is '1' */
01642   if (_settings_client.gui.order_review_system == 1 && (v->vehstatus & VS_STOPPED)) return;
01643 
01644   /* do nothing we we're not the first vehicle in a share-chain */
01645   if (v->FirstShared() != v) return;
01646 
01647   /* Only check every 20 days, so that we don't flood the message log */
01648   if (v->owner == _local_company && v->day_counter % 20 == 0) {
01649     int n_st, problem_type = -1;
01650     const Order *order;
01651     int message = 0;
01652 
01653     /* Check the order list */
01654     n_st = 0;
01655 
01656     FOR_VEHICLE_ORDERS(v, order) {
01657       /* Dummy order? */
01658       if (order->IsType(OT_DUMMY)) {
01659         problem_type = 1;
01660         break;
01661       }
01662       /* Does station have a load-bay for this vehicle? */
01663       if (order->IsType(OT_GOTO_STATION)) {
01664         const Station *st = Station::Get(order->GetDestination());
01665 
01666         n_st++;
01667         if (!CanVehicleUseStation(v, st)) problem_type = 3;
01668       }
01669     }
01670 
01671     /* Check if the last and the first order are the same */
01672     if (v->GetNumOrders() > 1) {
01673       const Order *last = v->GetLastOrder();
01674 
01675       if (v->orders.list->GetFirstOrder()->Equals(*last)) {
01676         problem_type = 2;
01677       }
01678     }
01679 
01680     /* Do we only have 1 station in our order list? */
01681     if (n_st < 2 && problem_type == -1) problem_type = 0;
01682 
01683 #ifndef NDEBUG
01684     if (v->orders.list != NULL) v->orders.list->DebugCheckSanity();
01685 #endif
01686 
01687     /* We don't have a problem */
01688     if (problem_type < 0) return;
01689 
01690     message = STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS + problem_type;
01691     //DEBUG(misc, 3, "Triggered News Item for vehicle %d", v->index);
01692 
01693     SetDParam(0, v->index);
01694     AddVehicleNewsItem(
01695       message,
01696       NS_ADVICE,
01697       v->index
01698     );
01699   }
01700 }
01701 
01707 void RemoveOrderFromAllVehicles(OrderType type, DestinationID destination)
01708 {
01709   Vehicle *v;
01710 
01711   /* Aircraft have StationIDs for depot orders and never use DepotIDs
01712    * This fact is handled specially below
01713    */
01714 
01715   /* Go through all vehicles */
01716   FOR_ALL_VEHICLES(v) {
01717     Order *order;
01718 
01719     order = &v->current_order;
01720     if ((v->type == VEH_AIRCRAFT && order->IsType(OT_GOTO_DEPOT) ? OT_GOTO_STATION : order->GetType()) == type &&
01721         v->current_order.GetDestination() == destination) {
01722       order->MakeDummy();
01723       SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01724     }
01725 
01726     /* Clear the order from the order-list */
01727     int id = -1;
01728     FOR_VEHICLE_ORDERS(v, order) {
01729       id++;
01730 restart:
01731 
01732       OrderType ot = order->GetType();
01733       if (ot == OT_GOTO_DEPOT && (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) continue;
01734       if (ot == OT_IMPLICIT || (v->type == VEH_AIRCRAFT && ot == OT_GOTO_DEPOT)) ot = OT_GOTO_STATION;
01735       if (ot == type && order->GetDestination() == destination) {
01736         /* We want to clear implicit orders, but we don't want to make them
01737          * dummy orders. They should just vanish. Also check the actual order
01738          * type as ot is currently OT_GOTO_STATION. */
01739         if (order->IsType(OT_IMPLICIT)) {
01740           order = order->next; // DeleteOrder() invalidates current order
01741           DeleteOrder(v, id);
01742           if (order != NULL) goto restart;
01743           break;
01744         }
01745 
01746         order->MakeDummy();
01747         for (const Vehicle *w = v->FirstShared(); w != NULL; w = w->NextShared()) {
01748           /* In GUI, simulate by removing the order and adding it back */
01749           InvalidateVehicleOrder(w, id | (INVALID_VEH_ORDER_ID << 8));
01750           InvalidateVehicleOrder(w, (INVALID_VEH_ORDER_ID << 8) | id);
01751 
01752           RecalcFrozenIfLoading(w);
01753         }
01754       }
01755     }
01756   }
01757 }
01758 
01763 bool Vehicle::HasDepotOrder() const
01764 {
01765   const Order *order;
01766 
01767   FOR_VEHICLE_ORDERS(this, order) {
01768     if (order->IsType(OT_GOTO_DEPOT)) return true;
01769   }
01770 
01771   return false;
01772 }
01773 
01783 void DeleteVehicleOrders(Vehicle *v, bool keep_orderlist, bool reset_order_indices)
01784 {
01785   DeleteOrderWarnings(v);
01786 
01787   if (v->IsOrderListShared()) {
01788     /* Remove ourself from the shared order list. */
01789     v->RemoveFromShared();
01790     v->orders.list = NULL;
01791   } else if (v->orders.list != NULL) {
01792     /* Remove the orders */
01793     v->orders.list->FreeChain(keep_orderlist);
01794     if (!keep_orderlist) v->orders.list = NULL;
01795   }
01796 
01797   if (reset_order_indices) {
01798     v->cur_implicit_order_index = v->cur_real_order_index = 0;
01799     if (v->current_order.IsType(OT_LOADING)) {
01800       CancelLoadingDueToDeletedOrder(v);
01801     }
01802   }
01803 
01804   RecalcFrozenIfLoading(v);
01805 }
01806 
01814 uint16 GetServiceIntervalClamped(uint interval, CompanyID company_id)
01815 {
01816   return (Company::Get(company_id)->settings.vehicle.servint_ispercent) ? Clamp(interval, MIN_SERVINT_PERCENT, MAX_SERVINT_PERCENT) : Clamp(interval, MIN_SERVINT_DAYS, MAX_SERVINT_DAYS);
01817 }
01818 
01827 static bool CheckForValidOrders(const Vehicle *v)
01828 {
01829   const Order *order;
01830 
01831   FOR_VEHICLE_ORDERS(v, order) {
01832     switch (order->GetType()) {
01833       case OT_GOTO_STATION:
01834       case OT_GOTO_DEPOT:
01835       case OT_GOTO_WAYPOINT:
01836         return true;
01837 
01838       default:
01839         break;
01840     }
01841   }
01842 
01843   return false;
01844 }
01845 
01849 static bool OrderConditionCompare(OrderConditionComparator occ, int variable, int value)
01850 {
01851   switch (occ) {
01852     case OCC_EQUALS:      return variable == value;
01853     case OCC_NOT_EQUALS:  return variable != value;
01854     case OCC_LESS_THAN:   return variable <  value;
01855     case OCC_LESS_EQUALS: return variable <= value;
01856     case OCC_MORE_THAN:   return variable >  value;
01857     case OCC_MORE_EQUALS: return variable >= value;
01858     case OCC_IS_TRUE:     return variable != 0;
01859     case OCC_IS_FALSE:    return variable == 0;
01860     default: NOT_REACHED();
01861   }
01862 }
01863 
01870 VehicleOrderID ProcessConditionalOrder(const Order *order, const Vehicle *v)
01871 {
01872   if (order->GetType() != OT_CONDITIONAL) return INVALID_VEH_ORDER_ID;
01873 
01874   bool skip_order = false;
01875   OrderConditionComparator occ = order->GetConditionComparator();
01876   uint16 value = order->GetConditionValue();
01877 
01878   switch (order->GetConditionVariable()) {
01879     case OCV_LOAD_PERCENTAGE:  skip_order = OrderConditionCompare(occ, CalcPercentVehicleFilled(v, NULL), value); break;
01880     case OCV_RELIABILITY:      skip_order = OrderConditionCompare(occ, ToPercent16(v->reliability),       value); break;
01881     case OCV_MAX_SPEED:        skip_order = OrderConditionCompare(occ, v->GetDisplayMaxSpeed() * 10 / 16, value); break;
01882     case OCV_AGE:              skip_order = OrderConditionCompare(occ, v->age / DAYS_IN_LEAP_YEAR,        value); break;
01883     case OCV_REQUIRES_SERVICE: skip_order = OrderConditionCompare(occ, v->NeedsServicing(),               value); break;
01884     case OCV_UNCONDITIONALLY:  skip_order = true; break;
01885     default: NOT_REACHED();
01886   }
01887 
01888   return skip_order ? order->GetConditionSkipToOrder() : (VehicleOrderID)INVALID_VEH_ORDER_ID;
01889 }
01890 
01897 bool UpdateOrderDest(Vehicle *v, const Order *order, int conditional_depth)
01898 {
01899   if (conditional_depth > v->GetNumOrders()) return false;
01900 
01901   switch (order->GetType()) {
01902     case OT_GOTO_STATION:
01903       v->dest_tile = v->GetOrderStationLocation(order->GetDestination());
01904       return true;
01905 
01906     case OT_GOTO_DEPOT:
01907       if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !v->NeedsServicing()) {
01908         UpdateVehicleTimetable(v, true);
01909         v->IncrementRealOrderIndex();
01910         break;
01911       }
01912 
01913       if (v->current_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) {
01914         /* We need to search for the nearest depot (hangar). */
01915         TileIndex location;
01916         DestinationID destination;
01917         bool reverse;
01918 
01919         if (v->FindClosestDepot(&location, &destination, &reverse)) {
01920           v->dest_tile = location;
01921           v->current_order.MakeGoToDepot(destination, v->current_order.GetDepotOrderType(), v->current_order.GetNonStopType(), (OrderDepotActionFlags)(v->current_order.GetDepotActionType() & ~ODATFB_NEAREST_DEPOT), v->current_order.GetRefitCargo(), v->current_order.GetRefitSubtype());
01922 
01923           /* If there is no depot in front, reverse automatically (trains only) */
01924           if (v->type == VEH_TRAIN && reverse) DoCommand(v->tile, v->index, 0, DC_EXEC, CMD_REVERSE_TRAIN_DIRECTION);
01925 
01926           if (v->type == VEH_AIRCRAFT) {
01927             Aircraft *a = Aircraft::From(v);
01928             if (a->state == FLYING && a->targetairport != destination) {
01929               /* The aircraft is now heading for a different hangar than the next in the orders */
01930               extern void AircraftNextAirportPos_and_Order(Aircraft *a);
01931               AircraftNextAirportPos_and_Order(a);
01932             }
01933           }
01934           return true;
01935         }
01936 
01937         UpdateVehicleTimetable(v, true);
01938         v->IncrementRealOrderIndex();
01939       } else {
01940         if (v->type != VEH_AIRCRAFT) {
01941           v->dest_tile = Depot::Get(order->GetDestination())->xy;
01942         }
01943         return true;
01944       }
01945       break;
01946 
01947     case OT_GOTO_WAYPOINT:
01948       v->dest_tile = Waypoint::Get(order->GetDestination())->xy;
01949       return true;
01950 
01951     case OT_CONDITIONAL: {
01952       VehicleOrderID next_order = ProcessConditionalOrder(order, v);
01953       if (next_order != INVALID_VEH_ORDER_ID) {
01954         /* Jump to next_order. cur_implicit_order_index becomes exactly that order,
01955          * cur_real_order_index might come after next_order. */
01956         UpdateVehicleTimetable(v, false);
01957         v->cur_implicit_order_index = v->cur_real_order_index = next_order;
01958         v->UpdateRealOrderIndex();
01959         v->current_order_time += v->GetOrder(v->cur_real_order_index)->travel_time;
01960 
01961         /* Disable creation of implicit orders.
01962          * When inserting them we do not know that we would have to make the conditional orders point to them. */
01963         if (v->IsGroundVehicle()) {
01964           uint16 &gv_flags = v->GetGroundVehicleFlags();
01965           SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
01966         }
01967       } else {
01968         UpdateVehicleTimetable(v, true);
01969         v->IncrementRealOrderIndex();
01970       }
01971       break;
01972     }
01973 
01974     default:
01975       v->dest_tile = 0;
01976       return false;
01977   }
01978 
01979   assert(v->cur_implicit_order_index < v->GetNumOrders());
01980   assert(v->cur_real_order_index < v->GetNumOrders());
01981 
01982   /* Get the current order */
01983   order = v->GetOrder(v->cur_real_order_index);
01984   if (order != NULL && order->IsType(OT_IMPLICIT)) {
01985     assert(v->GetNumManualOrders() == 0);
01986     order = NULL;
01987   }
01988 
01989   if (order == NULL) {
01990     v->current_order.Free();
01991     v->dest_tile = 0;
01992     return false;
01993   }
01994 
01995   v->current_order = *order;
01996   return UpdateOrderDest(v, order, conditional_depth + 1);
01997 }
01998 
02006 bool ProcessOrders(Vehicle *v)
02007 {
02008   switch (v->current_order.GetType()) {
02009     case OT_GOTO_DEPOT:
02010       /* Let a depot order in the orderlist interrupt. */
02011       if (!(v->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) return false;
02012       break;
02013 
02014     case OT_LOADING:
02015       return false;
02016 
02017     case OT_LEAVESTATION:
02018       if (v->type != VEH_AIRCRAFT) return false;
02019       break;
02020 
02021     default: break;
02022   }
02023 
02031   bool may_reverse = v->current_order.IsType(OT_NOTHING);
02032 
02033   /* Check if we've reached a 'via' destination. */
02034   if (((v->current_order.IsType(OT_GOTO_STATION) && (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION)) || v->current_order.IsType(OT_GOTO_WAYPOINT)) &&
02035       IsTileType(v->tile, MP_STATION) &&
02036       v->current_order.GetDestination() == GetStationIndex(v->tile)) {
02037     v->DeleteUnreachedImplicitOrders();
02038     /* We set the last visited station here because we do not want
02039      * the train to stop at this 'via' station if the next order
02040      * is a no-non-stop order; in that case not setting the last
02041      * visited station will cause the vehicle to still stop. */
02042     v->last_station_visited = v->current_order.GetDestination();
02043     UpdateVehicleTimetable(v, true);
02044     v->IncrementImplicitOrderIndex();
02045   }
02046 
02047   /* Get the current order */
02048   assert(v->cur_implicit_order_index == 0 || v->cur_implicit_order_index < v->GetNumOrders());
02049   v->UpdateRealOrderIndex();
02050 
02051   const Order *order = v->GetOrder(v->cur_real_order_index);
02052   if (order != NULL && order->IsType(OT_IMPLICIT)) {
02053     assert(v->GetNumManualOrders() == 0);
02054     order = NULL;
02055   }
02056 
02057   /* If no order, do nothing. */
02058   if (order == NULL || (v->type == VEH_AIRCRAFT && !CheckForValidOrders(v))) {
02059     if (v->type == VEH_AIRCRAFT) {
02060       /* Aircraft do something vastly different here, so handle separately */
02061       extern void HandleMissingAircraftOrders(Aircraft *v);
02062       HandleMissingAircraftOrders(Aircraft::From(v));
02063       return false;
02064     }
02065 
02066     v->current_order.Free();
02067     v->dest_tile = 0;
02068     return false;
02069   }
02070 
02071   /* If it is unchanged, keep it. */
02072   if (order->Equals(v->current_order) && (v->type == VEH_AIRCRAFT || v->dest_tile != 0) &&
02073       (v->type != VEH_SHIP || !order->IsType(OT_GOTO_STATION) || Station::Get(order->GetDestination())->dock_tile != INVALID_TILE)) {
02074     return false;
02075   }
02076 
02077   /* Otherwise set it, and determine the destination tile. */
02078   v->current_order = *order;
02079 
02080   InvalidateVehicleOrder(v, -2);
02081   switch (v->type) {
02082     default:
02083       NOT_REACHED();
02084 
02085     case VEH_ROAD:
02086     case VEH_TRAIN:
02087       break;
02088 
02089     case VEH_AIRCRAFT:
02090     case VEH_SHIP:
02091       SetWindowClassesDirty(GetWindowClassForVehicleType(v->type));
02092       break;
02093   }
02094 
02095   return UpdateOrderDest(v, order) && may_reverse;
02096 }
02097 
02105 bool Order::ShouldStopAtStation(const Vehicle *v, StationID station) const
02106 {
02107   bool is_dest_station = this->IsType(OT_GOTO_STATION) && this->dest == station;
02108 
02109   return (!this->IsType(OT_GOTO_DEPOT) || (this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0) &&
02110       v->last_station_visited != station && // Do stop only when we've not just been there
02111       /* Finally do stop when there is no non-stop flag set for this type of station. */
02112       !(this->GetNonStopType() & (is_dest_station ? ONSF_NO_STOP_AT_DESTINATION_STATION : ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS));
02113 }