# 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 "strings_func.h"
    00019 #include "timetable.h"
    00020 #include "vehicle_func.h"
    00021 #include "depot_base.h"
    00022 #include "core/pool_func.hpp"
    00023 #include "core/random_func.hpp"
    00024 #include "aircraft.h"
    00025 #include "roadveh.h"
    00026 #include "station_base.h"
    00027 #include "waypoint_base.h"
    00028 #include "company_base.h"
    00029 #include "order_backup.h"
    00030
    00031 #include "table/strings.h"
    00032
    00033 /* DestinationID must be at least as large as every these below, because it can
    00034  * be any of them
    00035  */
    00036 assert_compile(sizeof(DestinationID) >= sizeof(DepotID));
    00037 assert_compile(sizeof(DestinationID) >= sizeof(StationID));
    00038
    00039 OrderPool _order_pool("Order");
    00040 INSTANTIATE_POOL_METHODS(Order)
    00041 OrderListPool _orderlist_pool("OrderList");
    00042 INSTANTIATE_POOL_METHODS(OrderList)
    00043
    00045 Order::~Order()
    00046 {
    00047   if (CleaningPool()) return;
    00048
    00049   /* We can visit oil rigs and buoys that are not our own. They will be shown in
    00050    * the list of stations. So, we need to invalidate that window if needed. */
    00051   if (this->IsType(OT_GOTO_STATION) || this->IsType(OT_GOTO_WAYPOINT)) {
    00052     BaseStation *bs = BaseStation::GetIfValid(this->GetDestination());
    00053     if (bs != NULL && bs->owner == OWNER_NONE) InvalidateWindowClassesData(WC_STATION_LIST, 0);
    00054   }
    00055 }
    00056
    00061 void Order::Free()
    00062 {
    00063   this->type  = OT_NOTHING;
    00064   this->flags = 0;
    00065   this->dest  = 0;
    00066   this->next  = NULL;
    00067 }
    00068
    00073 void Order::MakeGoToStation(StationID destination)
    00074 {
    00075   this->type = OT_GOTO_STATION;
    00076   this->flags = 0;
    00077   this->dest = destination;
    00078 }
    00079
    00089 void Order::MakeGoToDepot(DepotID destination, OrderDepotTypeFlags order, OrderNonStopFlags non_stop_type, OrderDepotActionFlags action, CargoID cargo, byte subtype)
    00090 {
    00091   this->type = OT_GOTO_DEPOT;
    00092   this->SetDepotOrderType(order);
    00093   this->SetDepotActionType(action);
    00094   this->SetNonStopType(non_stop_type);
    00095   this->dest = destination;
    00096   this->SetRefit(cargo, subtype);
    00097 }
    00098
    00103 void Order::MakeGoToWaypoint(StationID destination)
    00104 {
    00105   this->type = OT_GOTO_WAYPOINT;
    00106   this->flags = 0;
    00107   this->dest = destination;
    00108 }
    00109
    00114 void Order::MakeLoading(bool ordered)
    00115 {
    00116   this->type = OT_LOADING;
    00117   if (!ordered) this->flags = 0;
    00118 }
    00119
    00123 void Order::MakeLeaveStation()
    00124 {
    00125   this->type = OT_LEAVESTATION;
    00126   this->flags = 0;
    00127 }
    00128
    00132 void Order::MakeDummy()
    00133 {
    00134   this->type = OT_DUMMY;
    00135   this->flags = 0;
    00136 }
    00137
    00142 void Order::MakeConditional(VehicleOrderID order)
    00143 {
    00144   this->type = OT_CONDITIONAL;
    00145   this->flags = order;
    00146   this->dest = 0;
    00147 }
    00148
    00153 void Order::MakeImplicit(StationID destination)
    00154 {
    00155   this->type = OT_IMPLICIT;
    00156   this->dest = destination;
    00157 }
    00158
    00165 void Order::SetRefit(CargoID cargo, byte subtype)
    00166 {
    00167   this->refit_cargo = cargo;
    00168   this->refit_subtype = subtype;
    00169 }
    00170
    00176 bool Order::Equals(const Order &other) const
    00177 {
    00178   /* In case of go to nearest depot orders we need "only" compare the flags
    00179    * with the other and not the nearest depot order bit or the actual
    00180    * destination because those get clear/filled in during the order
    00181    * evaluation. If we do not do this the order will continuously be seen as
    00182    * a different order and it will try to find a "nearest depot" every tick. */
    00183   if ((this->IsType(OT_GOTO_DEPOT) && this->type == other.type) &&
    00184       ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0 ||
    00185        (other.GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0)) {
    00186     return this->GetDepotOrderType() == other.GetDepotOrderType() &&
    00187         (this->GetDepotActionType() & ~ODATFB_NEAREST_DEPOT) == (other.GetDepotActionType() & ~ODATFB_NEAREST_DEPOT);
    00188   }
    00189
    00190   return this->type == other.type && this->flags == other.flags && this->dest == other.dest;
    00191 }
    00192
    00199 uint32 Order::Pack() const
    00200 {
    00201   return this->dest << 16 | this->flags << 8 | this->type;
    00202 }
    00203
    00209 uint16 Order::MapOldOrder() const
    00210 {
    00211   uint16 order = this->GetType();
    00212   switch (this->type) {
    00213     case OT_GOTO_STATION:
    00214       if (this->GetUnloadType() & OUFB_UNLOAD) SetBit(order, 5);
    00215       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
    00216       if (this->GetNonStopType() & ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS) SetBit(order, 7);
    00217       order |= GB(this->GetDestination(), 0, 8) << 8;
    00218       break;
    00219     case OT_GOTO_DEPOT:
    00220       if (!(this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) SetBit(order, 6);
    00221       SetBit(order, 7);
    00222       order |= GB(this->GetDestination(), 0, 8) << 8;
    00223       break;
    00224     case OT_LOADING:
    00225       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
    00226       break;
    00227   }
    00228   return order;
    00229 }
    00230
    00235 Order::Order(uint32 packed)
    00236 {
    00237   this->type    = (OrderType)GB(packed,  0,  8);
    00238   this->flags   = GB(packed,  8,  8);
    00239   this->dest    = GB(packed, 16, 16);
    00240   this->next    = NULL;
    00241   this->refit_cargo   = CT_NO_REFIT;
    00242   this->refit_subtype = 0;
    00243   this->wait_time     = 0;
    00244   this->travel_time   = 0;
    00245   this->max_speed     = UINT16_MAX;
    00246 }
    00247
    00253 void InvalidateVehicleOrder(const Vehicle *v, int data)
    00254 {
    00255   SetWindowDirty(WC_VEHICLE_VIEW, v->index);
    00256
    00257   if (data != 0) {
    00258     /* Calls SetDirty() too */
    00259     InvalidateWindowData(WC_VEHICLE_ORDERS,    v->index, data);
    00260     InvalidateWindowData(WC_VEHICLE_TIMETABLE, v->index, data);
    00261     return;
    00262   }
    00263
    00264   SetWindowDirty(WC_VEHICLE_ORDERS,    v->index);
    00265   SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00266 }
    00267
    00275 void Order::AssignOrder(const Order &other)
    00276 {
    00277   this->type  = other.type;
    00278   this->flags = other.flags;
    00279   this->dest  = other.dest;
    00280
    00281   this->refit_cargo   = other.refit_cargo;
    00282   this->refit_subtype = other.refit_subtype;
    00283
    00284   this->wait_time   = other.wait_time;
    00285   this->travel_time = other.travel_time;
    00286   this->max_speed   = other.max_speed;
    00287 }
    00288
    00294 void OrderList::Initialize(Order *chain, Vehicle *v)
    00295 {
    00296   this->first = chain;
    00297   this->first_shared = v;
    00298
    00299   this->num_orders = 0;
    00300   this->num_manual_orders = 0;
    00301   this->num_vehicles = 1;
    00302   this->timetable_duration = 0;
    00303
    00304   for (Order *o = this->first; o != NULL; o = o->next) {
    00305     ++this->num_orders;
    00306     if (!o->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
    00307     this->timetable_duration += o->wait_time + o->travel_time;
    00308   }
    00309
    00310   for (Vehicle *u = this->first_shared->PreviousShared(); u != NULL; u = u->PreviousShared()) {
    00311     ++this->num_vehicles;
    00312     this->first_shared = u;
    00313   }
    00314
    00315   for (const Vehicle *u = v->NextShared(); u != NULL; u = u->NextShared()) ++this->num_vehicles;
    00316 }
    00317
    00323 void OrderList::FreeChain(bool keep_orderlist)
    00324 {
    00325   Order *next;
    00326   for (Order *o = this->first; o != NULL; o = next) {
    00327     next = o->next;
    00328     delete o;
    00329   }
    00330
    00331   if (keep_orderlist) {
    00332     this->first = NULL;
    00333     this->num_orders = 0;
    00334     this->num_manual_orders = 0;
    00335     this->timetable_duration = 0;
    00336   } else {
    00337     delete this;
    00338   }
    00339 }
    00340
    00346 Order *OrderList::GetOrderAt(int index) const
    00347 {
    00348   if (index < 0) return NULL;
    00349
    00350   Order *order = this->first;
    00351
    00352   while (order != NULL && index-- > 0) {
    00353     order = order->next;
    00354   }
    00355   return order;
    00356 }
    00357
    00367 const Order *OrderList::GetBestLoadableNext(const Vehicle *v, const Order *o2, const Order *o1) const
    00368 {
    00369   SmallMap<CargoID, uint> capacities;
    00370   v->GetConsistFreeCapacities(capacities);
    00371   uint loadable1 = 0;
    00372   uint loadable2 = 0;
    00373   StationID st1 = o1->GetDestination();
    00374   StationID st2 = o2->GetDestination();
    00375   const Station *cur_station = Station::Get(v->last_station_visited);
    00376   for (SmallPair<CargoID, uint> *i = capacities.Begin(); i != capacities.End(); ++i) {
    00377     const StationCargoPacketMap *loadable_packets = cur_station->goods[i->first].cargo.Packets();
    00378     uint loadable_cargo = 0;
    00379     std::pair<StationCargoPacketMap::const_iterator, StationCargoPacketMap::const_iterator> p =
    00380       loadable_packets->equal_range(st1);
    00381     for (StationCargoPacketMap::const_iterator j = p.first; j != p.second; ++j) {
    00382       loadable_cargo = (*j)->Count();
    00383     }
    00384     loadable1 += min(i->second, loadable_cargo);
    00385
    00386     loadable_cargo = 0;
    00387     p = loadable_packets->equal_range(st2);
    00388     for (StationCargoPacketMap::const_iterator j = p.first; j != p.second; ++j) {
    00389       loadable_cargo = (*j)->Count();
    00390     }
    00391     loadable2 += min(i->second, loadable_cargo);
    00392   }
    00393   if (loadable1 == loadable2) return RandomRange(2) == 0 ? o1 : o2;
    00394   return loadable1 > loadable2 ? o1 : o2;
    00395 }
    00396
    00408 const Order *OrderList::GetNextStoppingOrder(const Vehicle *v, const Order *next, uint hops, bool is_loading) const
    00409 {
    00410   if (hops > this->GetNumOrders() || next == NULL) return NULL;
    00411
    00412   if (next->IsType(OT_CONDITIONAL)) {
    00413     if (is_loading && next->GetConditionVariable() == OCV_LOAD_PERCENTAGE) {
    00414       /* If the condition is based on load percentage we can't
    00415        * tell what it will do. So we choose randomly. */
    00416       const Order *skip_to = this->GetNextStoppingOrder(v,
    00417           this->GetOrderAt(next->GetConditionSkipToOrder()),
    00418           hops + 1);
    00419       const Order *advance = this->GetNextStoppingOrder(v,
    00420           this->GetNext(next), hops + 1);
    00421       if (advance == NULL) {
    00422         return skip_to;
    00423       } else if (skip_to == NULL) {
    00424         return advance;
    00425       } else {
    00426         return this->GetBestLoadableNext(v, skip_to, advance);
    00427       }
    00428     } else {
    00429       /* Otherwise we're optimistic and expect that the
    00430        * condition value won't change until it's evaluated. */
    00431       VehicleOrderID skip_to = ProcessConditionalOrder(next, v);
    00432       if (skip_to != INVALID_VEH_ORDER_ID) {
    00433         return this->GetNextStoppingOrder(v,
    00434             this->GetOrderAt(skip_to), hops + 1);
    00435       } else {
    00436         return this->GetNextStoppingOrder(v,
    00437             this->GetNext(next), hops + 1);
    00438       }
    00439     }
    00440   }
    00441
    00442   if (next->IsType(OT_GOTO_DEPOT)) {
    00443     if (next->GetDepotActionType() == ODATFB_HALT) return NULL;
    00444     if (next->IsRefit()) return next;
    00445   }
    00446
    00447   if (!next->CanLoadOrUnload()) {
    00448     return this->GetNextStoppingOrder(v, this->GetNext(next), hops + 1);
    00449   }
    00450
    00451   return next;
    00452 }
    00453
    00461 StationID OrderList::GetNextStoppingStation(const Vehicle *v) const
    00462 {
    00463
    00464   const Order *next = this->GetOrderAt(v->cur_implicit_order_index);
    00465   if (next == NULL) {
    00466     next = this->GetFirstOrder();
    00467     if (next == NULL) return INVALID_STATION;
    00468   } else {
    00469     next = this->GetNext(next);
    00470   }
    00471
    00472   uint hops = 0;
    00473   do {
    00474     next = this->GetNextStoppingOrder(v, next, ++hops, true);
    00475     /* Don't return a next stop if the vehicle has to unload everything. */
    00476     if (next == NULL || (next->GetDestination() == v->last_station_visited &&
    00477         (next->GetUnloadType() & (OUFB_TRANSFER | OUFB_UNLOAD)) == 0)) {
    00478       return INVALID_STATION;
    00479     }
    00480   } while (next->IsType(OT_GOTO_DEPOT) || next->GetDestination() == v->last_station_visited);
    00481
    00482   return next->GetDestination();
    00483 }
    00484
    00490 void OrderList::InsertOrderAt(Order *new_order, int index)
    00491 {
    00492   if (this->first == NULL) {
    00493     this->first = new_order;
    00494   } else {
    00495     if (index == 0) {
    00496       /* Insert as first or only order */
    00497       new_order->next = this->first;
    00498       this->first = new_order;
    00499     } else if (index >= this->num_orders) {
    00500       /* index is after the last order, add it to the end */
    00501       this->GetLastOrder()->next = new_order;
    00502     } else {
    00503       /* Put the new order in between */
    00504       Order *order = this->GetOrderAt(index - 1);
    00505       new_order->next = order->next;
    00506       order->next = new_order;
    00507     }
    00508   }
    00509   ++this->num_orders;
    00510   if (!new_order->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
    00511   this->timetable_duration += new_order->wait_time + new_order->travel_time;
    00512
    00513   /* We can visit oil rigs and buoys that are not our own. They will be shown in
    00514    * the list of stations. So, we need to invalidate that window if needed. */
    00515   if (new_order->IsType(OT_GOTO_STATION) || new_order->IsType(OT_GOTO_WAYPOINT)) {
    00516     BaseStation *bs = BaseStation::Get(new_order->GetDestination());
    00517     if (bs->owner == OWNER_NONE) InvalidateWindowClassesData(WC_STATION_LIST, 0);
    00518   }
    00519
    00520 }
    00521
    00522
    00527 void OrderList::DeleteOrderAt(int index)
    00528 {
    00529   if (index >= this->num_orders) return;
    00530
    00531   Order *to_remove;
    00532
    00533   if (index == 0) {
    00534     to_remove = this->first;
    00535     this->first = to_remove->next;
    00536   } else {
    00537     Order *prev = GetOrderAt(index - 1);
    00538     to_remove = prev->next;
    00539     prev->next = to_remove->next;
    00540   }
    00541   --this->num_orders;
    00542   if (!to_remove->IsType(OT_IMPLICIT)) --this->num_manual_orders;
    00543   this->timetable_duration -= (to_remove->wait_time + to_remove->travel_time);
    00544   delete to_remove;
    00545 }
    00546
    00552 void OrderList::MoveOrder(int from, int to)
    00553 {
    00554   if (from >= this->num_orders || to >= this->num_orders || from == to) return;
    00555
    00556   Order *moving_one;
    00557
    00558   /* Take the moving order out of the pointer-chain */
    00559   if (from == 0) {
    00560     moving_one = this->first;
    00561     this->first = moving_one->next;
    00562   } else {
    00563     Order *one_before = GetOrderAt(from - 1);
    00564     moving_one = one_before->next;
    00565     one_before->next = moving_one->next;
    00566   }
    00567
    00568   /* Insert the moving_order again in the pointer-chain */
    00569   if (to == 0) {
    00570     moving_one->next = this->first;
    00571     this->first = moving_one;
    00572   } else {
    00573     Order *one_before = GetOrderAt(to - 1);
    00574     moving_one->next = one_before->next;
    00575     one_before->next = moving_one;
    00576   }
    00577 }
    00578
    00584 void OrderList::RemoveVehicle(Vehicle *v)
    00585 {
    00586   --this->num_vehicles;
    00587   if (v == this->first_shared) this->first_shared = v->NextShared();
    00588 }
    00589
    00594 bool OrderList::IsVehicleInSharedOrdersList(const Vehicle *v) const
    00595 {
    00596   for (const Vehicle *v_shared = this->first_shared; v_shared != NULL; v_shared = v_shared->NextShared()) {
    00597     if (v_shared == v) return true;
    00598   }
    00599
    00600   return false;
    00601 }
    00602
    00608 int OrderList::GetPositionInSharedOrderList(const Vehicle *v) const
    00609 {
    00610   int count = 0;
    00611   for (const Vehicle *v_shared = v->PreviousShared(); v_shared != NULL; v_shared = v_shared->PreviousShared()) count++;
    00612   return count;
    00613 }
    00614
    00619 bool OrderList::IsCompleteTimetable() const
    00620 {
    00621   for (Order *o = this->first; o != NULL; o = o->next) {
    00622     /* Implicit orders are, by definition, not timetabled. */
    00623     if (o->IsType(OT_IMPLICIT)) continue;
    00624     if (!o->IsCompletelyTimetabled()) return false;
    00625   }
    00626   return true;
    00627 }
    00628
    00632 void OrderList::DebugCheckSanity() const
    00633 {
    00634   VehicleOrderID check_num_orders = 0;
    00635   VehicleOrderID check_num_manual_orders = 0;
    00636   uint check_num_vehicles = 0;
    00637   Ticks check_timetable_duration = 0;
    00638
    00639   DEBUG(misc, 6, "Checking OrderList %hu for sanity...", this->index);
    00640
    00641   for (const Order *o = this->first; o != NULL; o = o->next) {
    00642     ++check_num_orders;
    00643     if (!o->IsType(OT_IMPLICIT)) ++check_num_manual_orders;
    00644     check_timetable_duration += o->wait_time + o->travel_time;
    00645   }
    00646   assert(this->num_orders == check_num_orders);
    00647   assert(this->num_manual_orders == check_num_manual_orders);
    00648   assert(this->timetable_duration == check_timetable_duration);
    00649
    00650   for (const Vehicle *v = this->first_shared; v != NULL; v = v->NextShared()) {
    00651     ++check_num_vehicles;
    00652     assert(v->orders.list == this);
    00653   }
    00654   assert(this->num_vehicles == check_num_vehicles);
    00655   DEBUG(misc, 6, "... detected %u orders (%u manual), %u vehicles, %i ticks",
    00656       (uint)this->num_orders, (uint)this->num_manual_orders,
    00657       this->num_vehicles, this->timetable_duration);
    00658 }
    00659
    00667 static inline bool OrderGoesToStation(const Vehicle *v, const Order *o)
    00668 {
    00669   return o->IsType(OT_GOTO_STATION) ||
    00670       (v->type == VEH_AIRCRAFT && o->IsType(OT_GOTO_DEPOT) && !(o->GetDepotActionType() & ODATFB_NEAREST_DEPOT));
    00671 }
    00672
    00679 static void DeleteOrderWarnings(const Vehicle *v)
    00680 {
    00681   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS);
    00682   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_VOID_ORDER);
    00683   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_DUPLICATE_ENTRY);
    00684   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_INVALID_ENTRY);
    00685 }
    00686
    00693 TileIndex Order::GetLocation(const Vehicle *v, bool airport) const
    00694 {
    00695   switch (this->GetType()) {
    00696     case OT_GOTO_WAYPOINT:
    00697     case OT_GOTO_STATION:
    00698     case OT_IMPLICIT:
    00699       if (airport && v->type == VEH_AIRCRAFT) return Station::Get(this->GetDestination())->airport.tile;
    00700       return BaseStation::Get(this->GetDestination())->xy;
    00701
    00702     case OT_GOTO_DEPOT:
    00703       if ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) return INVALID_TILE;
    00704       return (v->type == VEH_AIRCRAFT) ? Station::Get(this->GetDestination())->xy : Depot::Get(this->GetDestination())->xy;
    00705
    00706     default:
    00707       return INVALID_TILE;
    00708   }
    00709 }
    00710
    00720 uint GetOrderDistance(const Order *prev, const Order *cur, const Vehicle *v, int conditional_depth)
    00721 {
    00722   if (cur->IsType(OT_CONDITIONAL)) {
    00723     if (conditional_depth > v->GetNumOrders()) return 0;
    00724
    00725     conditional_depth++;
    00726
    00727     int dist1 = GetOrderDistance(prev, v->GetOrder(cur->GetConditionSkipToOrder()), v, conditional_depth);
    00728     int dist2 = GetOrderDistance(prev, cur->next == NULL ? v->orders.list->GetFirstOrder() : cur->next, v, conditional_depth);
    00729     return max(dist1, dist2);
    00730   }
    00731
    00732   TileIndex prev_tile = prev->GetLocation(v, true);
    00733   TileIndex cur_tile = cur->GetLocation(v, true);
    00734   if (prev_tile == INVALID_TILE || cur_tile == INVALID_TILE) return 0;
    00735   return v->type == VEH_AIRCRAFT ? DistanceSquare(prev_tile, cur_tile) : DistanceManhattan(prev_tile, cur_tile);
    00736 }
    00737
    00751 CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00752 {
    00753   VehicleID veh          = GB(p1,  0, 20);
    00754   VehicleOrderID sel_ord = GB(p1, 20, 8);
    00755   Order new_order(p2);
    00756
    00757   Vehicle *v = Vehicle::GetIfValid(veh);
    00758   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00759
    00760   CommandCost ret = CheckOwnership(v->owner);
    00761   if (ret.Failed()) return ret;
    00762
    00763   /* Check if the inserted order is to the correct destination (owner, type),
    00764    * and has the correct flags if any */
    00765   switch (new_order.GetType()) {
    00766     case OT_GOTO_STATION: {
    00767       const Station *st = Station::GetIfValid(new_order.GetDestination());
    00768       if (st == NULL) return CMD_ERROR;
    00769
    00770       if (st->owner != OWNER_NONE) {
    00771         CommandCost ret = CheckOwnership(st->owner);
    00772         if (ret.Failed()) return ret;
    00773       }
    00774
    00775       if (!CanVehicleUseStation(v, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00776       for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
    00777         if (!CanVehicleUseStation(u, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER_SHARED);
    00778       }
    00779
    00780       /* Non stop only allowed for ground vehicles. */
    00781       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
    00782
    00783       /* Filter invalid load/unload types. */
    00784       switch (new_order.GetLoadType()) {
    00785         case OLF_LOAD_IF_POSSIBLE: case OLFB_FULL_LOAD: case OLF_FULL_LOAD_ANY: case OLFB_NO_LOAD: break;
    00786         default: return CMD_ERROR;
    00787       }
    00788       switch (new_order.GetUnloadType()) {
    00789         case OUF_UNLOAD_IF_POSSIBLE: case OUFB_UNLOAD: case OUFB_TRANSFER: case OUFB_NO_UNLOAD: break;
    00790         default: return CMD_ERROR;
    00791       }
    00792
    00793       /* Filter invalid stop locations */
    00794       switch (new_order.GetStopLocation()) {
    00795         case OSL_PLATFORM_NEAR_END:
    00796         case OSL_PLATFORM_MIDDLE:
    00797           if (v->type != VEH_TRAIN) return CMD_ERROR;
    00798           /* FALL THROUGH */
    00799         case OSL_PLATFORM_FAR_END:
    00800           break;
    00801
    00802         default:
    00803           return CMD_ERROR;
    00804       }
    00805
    00806       break;
    00807     }
    00808
    00809     case OT_GOTO_DEPOT: {
    00810       if ((new_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) == 0) {
    00811         if (v->type == VEH_AIRCRAFT) {
    00812           const Station *st = Station::GetIfValid(new_order.GetDestination());
    00813
    00814           if (st == NULL) return CMD_ERROR;
    00815
    00816           CommandCost ret = CheckOwnership(st->owner);
    00817           if (ret.Failed()) return ret;
    00818
    00819           if (!CanVehicleUseStation(v, st) || !st->airport.HasHangar()) {
    00820             return CMD_ERROR;
    00821           }
    00822         } else {
    00823           const Depot *dp = Depot::GetIfValid(new_order.GetDestination());
    00824
    00825           if (dp == NULL) return CMD_ERROR;
    00826
    00827           CommandCost ret = CheckOwnership(GetTileOwner(dp->xy));
    00828           if (ret.Failed()) return ret;
    00829
    00830           switch (v->type) {
    00831             case VEH_TRAIN:
    00832               if (!IsRailDepotTile(dp->xy)) return CMD_ERROR;
    00833               break;
    00834
    00835             case VEH_ROAD:
    00836               if (!IsRoadDepotTile(dp->xy)) return CMD_ERROR;
    00837               break;
    00838
    00839             case VEH_SHIP:
    00840               if (!IsShipDepotTile(dp->xy)) return CMD_ERROR;
    00841               break;
    00842
    00843             default: return CMD_ERROR;
    00844           }
    00845         }
    00846       }
    00847
    00848       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
    00849       if (new_order.GetDepotOrderType() & ~(ODTFB_PART_OF_ORDERS | ((new_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0 ? ODTFB_SERVICE : 0))) return CMD_ERROR;
    00850       if (new_order.GetDepotActionType() & ~(ODATFB_HALT | ODATFB_NEAREST_DEPOT)) return CMD_ERROR;
    00851       if ((new_order.GetDepotOrderType() & ODTFB_SERVICE) && (new_order.GetDepotActionType() & ODATFB_HALT)) return CMD_ERROR;
    00852       break;
    00853     }
    00854
    00855     case OT_GOTO_WAYPOINT: {
    00856       const Waypoint *wp = Waypoint::GetIfValid(new_order.GetDestination());
    00857       if (wp == NULL) return CMD_ERROR;
    00858
    00859       switch (v->type) {
    00860         default: return CMD_ERROR;
    00861
    00862         case VEH_TRAIN: {
    00863           if (!(wp->facilities & FACIL_TRAIN)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00864
    00865           CommandCost ret = CheckOwnership(wp->owner);
    00866           if (ret.Failed()) return ret;
    00867           break;
    00868         }
    00869
    00870         case VEH_SHIP:
    00871           if (!(wp->facilities & FACIL_DOCK)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00872           if (wp->owner != OWNER_NONE) {
    00873             CommandCost ret = CheckOwnership(wp->owner);
    00874             if (ret.Failed()) return ret;
    00875           }
    00876           break;
    00877       }
    00878
    00879       /* Order flags can be any of the following for waypoints:
    00880        * [non-stop]
    00881        * non-stop orders (if any) are only valid for trains */
    00882       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN) return CMD_ERROR;
    00883       break;
    00884     }
    00885
    00886     case OT_CONDITIONAL: {
    00887       VehicleOrderID skip_to = new_order.GetConditionSkipToOrder();
    00888       if (skip_to != 0 && skip_to >= v->GetNumOrders()) return CMD_ERROR; // Always allow jumping to the first (even when there is no order).
    00889       if (new_order.GetConditionVariable() >= OCV_END) return CMD_ERROR;
    00890
    00891       OrderConditionComparator occ = new_order.GetConditionComparator();
    00892       if (occ >= OCC_END) return CMD_ERROR;
    00893       switch (new_order.GetConditionVariable()) {
    00894         case OCV_REQUIRES_SERVICE:
    00895           if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) return CMD_ERROR;
    00896           break;
    00897
    00898         case OCV_UNCONDITIONALLY:
    00899           if (occ != OCC_EQUALS) return CMD_ERROR;
    00900           if (new_order.GetConditionValue() != 0) return CMD_ERROR;
    00901           break;
    00902
    00903         case OCV_LOAD_PERCENTAGE:
    00904         case OCV_RELIABILITY:
    00905           if (new_order.GetConditionValue() > 100) return CMD_ERROR;
    00906           /* FALL THROUGH */
    00907         default:
    00908           if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) return CMD_ERROR;
    00909           break;
    00910       }
    00911       break;
    00912     }
    00913
    00914     default: return CMD_ERROR;
    00915   }
    00916
    00917   if (sel_ord > v->GetNumOrders()) return CMD_ERROR;
    00918
    00919   if (v->GetNumOrders() >= MAX_VEH_ORDER_ID) return_cmd_error(STR_ERROR_TOO_MANY_ORDERS);
    00920   if (!Order::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    00921   if (v->orders.list == NULL && !OrderList::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    00922
    00923   if (v->type == VEH_SHIP && _settings_game.pf.pathfinder_for_ships != VPF_NPF) {
    00924     /* Make sure the new destination is not too far away from the previous */
    00925     const Order *prev = NULL;
    00926     uint n = 0;
    00927
    00928     /* Find the last goto station or depot order before the insert location.
    00929      * If the order is to be inserted at the beginning of the order list this
    00930      * finds the last order in the list. */
    00931     const Order *o;
    00932     FOR_VEHICLE_ORDERS(v, o) {
    00933       switch (o->GetType()) {
    00934         case OT_GOTO_STATION:
    00935         case OT_GOTO_DEPOT:
    00936         case OT_GOTO_WAYPOINT:
    00937           prev = o;
    00938           break;
    00939
    00940         default: break;
    00941       }
    00942       if (++n == sel_ord && prev != NULL) break;
    00943     }
    00944     if (prev != NULL) {
    00945       uint dist;
    00946       if (new_order.IsType(OT_CONDITIONAL)) {
    00947         /* The order is not yet inserted, so we have to do the first iteration here. */
    00948         dist = GetOrderDistance(prev, v->GetOrder(new_order.GetConditionSkipToOrder()), v);
    00949       } else {
    00950         dist = GetOrderDistance(prev, &new_order, v);
    00951       }
    00952
    00953       if (dist >= 130) {
    00954         return_cmd_error(STR_ERROR_TOO_FAR_FROM_PREVIOUS_DESTINATION);
    00955       }
    00956     }
    00957   }
    00958
    00959   if (flags & DC_EXEC) {
    00960     Order *new_o = new Order();
    00961     new_o->AssignOrder(new_order);
    00962     InsertOrder(v, new_o, sel_ord);
    00963   }
    00964
    00965   return CommandCost();
    00966 }
    00967
    00974 void InsertOrder(Vehicle *v, Order *new_o, VehicleOrderID sel_ord)
    00975 {
    00976   /* Create new order and link in list */
    00977   if (v->orders.list == NULL) {
    00978     v->orders.list = new OrderList(new_o, v);
    00979   } else {
    00980     v->orders.list->InsertOrderAt(new_o, sel_ord);
    00981   }
    00982
    00983   Vehicle *u = v->FirstShared();
    00984   DeleteOrderWarnings(u);
    00985   for (; u != NULL; u = u->NextShared()) {
    00986     assert(v->orders.list == u->orders.list);
    00987
    00988     /* If there is added an order before the current one, we need
    00989      * to update the selected order. We do not change implicit/real order indices though.
    00990      * If the new order is between the current implicit order and real order, the implicit order will
    00991      * later skip the inserted order. */
    00992     if (sel_ord <= u->cur_real_order_index) {
    00993       uint cur = u->cur_real_order_index + 1;
    00994       /* Check if we don't go out of bound */
    00995       if (cur < u->GetNumOrders()) {
    00996         u->cur_real_order_index = cur;
    00997       }
    00998     }
    00999     if (sel_ord == u->cur_implicit_order_index && u->IsGroundVehicle()) {
    01000       /* We are inserting an order just before the current implicit order.
    01001        * We do not know whether we will reach current implicit or the newly inserted order first.
    01002        * So, disable creation of implicit orders until we are on track again. */
    01003       uint16 &gv_flags = u->GetGroundVehicleFlags();
    01004       SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
    01005     }
    01006     if (sel_ord <= u->cur_implicit_order_index) {
    01007       uint cur = u->cur_implicit_order_index + 1;
    01008       /* Check if we don't go out of bound */
    01009       if (cur < u->GetNumOrders()) {
    01010         u->cur_implicit_order_index = cur;
    01011       }
    01012     }
    01013     /* Update any possible open window of the vehicle */
    01014     InvalidateVehicleOrder(u, INVALID_VEH_ORDER_ID | (sel_ord << 8));
    01015   }
    01016
    01017   /* As we insert an order, the order to skip to will be 'wrong'. */
    01018   VehicleOrderID cur_order_id = 0;
    01019   Order *order;
    01020   FOR_VEHICLE_ORDERS(v, order) {
    01021     if (order->IsType(OT_CONDITIONAL)) {
    01022       VehicleOrderID order_id = order->GetConditionSkipToOrder();
    01023       if (order_id >= sel_ord) {
    01024         order->SetConditionSkipToOrder(order_id + 1);
    01025       }
    01026       if (order_id == cur_order_id) {
    01027         order->SetConditionSkipToOrder((order_id + 1) % v->GetNumOrders());
    01028       }
    01029     }
    01030     cur_order_id++;
    01031   }
    01032
    01033   /* Make sure to rebuild the whole list */
    01034   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01035 }
    01036
    01042 static CommandCost DecloneOrder(Vehicle *dst, DoCommandFlag flags)
    01043 {
    01044   if (flags & DC_EXEC) {
    01045     DeleteVehicleOrders(dst);
    01046     InvalidateVehicleOrder(dst, -1);
    01047
    01048     InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01049   }
    01050   return CommandCost();
    01051 }
    01052
    01062 CommandCost CmdDeleteOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01063 {
    01064   VehicleID veh_id = GB(p1, 0, 20);
    01065   VehicleOrderID sel_ord = GB(p2, 0, 8);
    01066
    01067   Vehicle *v = Vehicle::GetIfValid(veh_id);
    01068
    01069   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01070
    01071   CommandCost ret = CheckOwnership(v->owner);
    01072   if (ret.Failed()) return ret;
    01073
    01074   /* If we did not select an order, we maybe want to de-clone the orders */
    01075   if (sel_ord >= v->GetNumOrders()) return DecloneOrder(v, flags);
    01076
    01077   if (v->GetOrder(sel_ord) == NULL) return CMD_ERROR;
    01078
    01079   if (flags & DC_EXEC) DeleteOrder(v, sel_ord);
    01080   return CommandCost();
    01081 }
    01082
    01087 static void CancelLoadingDueToDeletedOrder(Vehicle *v)
    01088 {
    01089   assert(v->current_order.IsType(OT_LOADING));
    01090   /* NON-stop flag is misused to see if a train is in a station that is
    01091    * on his order list or not */
    01092   v->current_order.SetNonStopType(ONSF_STOP_EVERYWHERE);
    01093   /* When full loading, "cancel" that order so the vehicle doesn't
    01094    * stay indefinitely at this station anymore. */
    01095   if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) v->current_order.SetLoadType(OLF_LOAD_IF_POSSIBLE);
    01096 }
    01097
    01103 void DeleteOrder(Vehicle *v, VehicleOrderID sel_ord)
    01104 {
    01105   v->orders.list->DeleteOrderAt(sel_ord);
    01106
    01107   Vehicle *u = v->FirstShared();
    01108   DeleteOrderWarnings(u);
    01109   for (; u != NULL; u = u->NextShared()) {
    01110     assert(v->orders.list == u->orders.list);
    01111
    01112     if (sel_ord == u->cur_real_order_index && u->current_order.IsType(OT_LOADING)) {
    01113       CancelLoadingDueToDeletedOrder(u);
    01114     }
    01115
    01116     if (sel_ord < u->cur_real_order_index) {
    01117       u->cur_real_order_index--;
    01118     } else if (sel_ord == u->cur_real_order_index) {
    01119       u->UpdateRealOrderIndex();
    01120     }
    01121
    01122     if (sel_ord < u->cur_implicit_order_index) {
    01123       u->cur_implicit_order_index--;
    01124     } else if (sel_ord == u->cur_implicit_order_index) {
    01125       /* Make sure the index is valid */
    01126       if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
    01127
    01128       /* Skip non-implicit orders for the implicit-order-index (e.g. if the current implicit order was deleted */
    01129       while (u->cur_implicit_order_index != u->cur_real_order_index && !u->GetOrder(u->cur_implicit_order_index)->IsType(OT_IMPLICIT)) {
    01130         u->cur_implicit_order_index++;
    01131         if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
    01132       }
    01133     }
    01134
    01135     /* Update any possible open window of the vehicle */
    01136     InvalidateVehicleOrder(u, sel_ord | (INVALID_VEH_ORDER_ID << 8));
    01137   }
    01138
    01139   /* As we delete an order, the order to skip to will be 'wrong'. */
    01140   VehicleOrderID cur_order_id = 0;
    01141   Order *order = NULL;
    01142   FOR_VEHICLE_ORDERS(v, order) {
    01143     if (order->IsType(OT_CONDITIONAL)) {
    01144       VehicleOrderID order_id = order->GetConditionSkipToOrder();
    01145       if (order_id >= sel_ord) {
    01146         order_id = max(order_id - 1, 0);
    01147       }
    01148       if (order_id == cur_order_id) {
    01149         order_id = (order_id + 1) % v->GetNumOrders();
    01150       }
    01151       order->SetConditionSkipToOrder(order_id);
    01152     }
    01153     cur_order_id++;
    01154   }
    01155
    01156   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01157 }
    01158
    01168 CommandCost CmdSkipToOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01169 {
    01170   VehicleID veh_id = GB(p1, 0, 20);
    01171   VehicleOrderID sel_ord = GB(p2, 0, 8);
    01172
    01173   Vehicle *v = Vehicle::GetIfValid(veh_id);
    01174
    01175   if (v == NULL || !v->IsPrimaryVehicle() || sel_ord == v->cur_implicit_order_index || sel_ord >= v->GetNumOrders() || v->GetNumOrders() < 2) return CMD_ERROR;
    01176
    01177   CommandCost ret = CheckOwnership(v->owner);
    01178   if (ret.Failed()) return ret;
    01179
    01180   if (flags & DC_EXEC) {
    01181     if (v->current_order.IsType(OT_LOADING)) v->LeaveStation();
    01182
    01183     v->cur_implicit_order_index = v->cur_real_order_index = sel_ord;
    01184     v->UpdateRealOrderIndex();
    01185
    01186     InvalidateVehicleOrder(v, -2);
    01187   }
    01188
    01189   /* We have an aircraft/ship, they have a mini-schedule, so update them all */
    01190   if (v->type == VEH_AIRCRAFT) SetWindowClassesDirty(WC_AIRCRAFT_LIST);
    01191   if (v->type == VEH_SHIP) SetWindowClassesDirty(WC_SHIPS_LIST);
    01192
    01193   return CommandCost();
    01194 }
    01195
    01209 CommandCost CmdMoveOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01210 {
    01211   VehicleID veh = GB(p1, 0, 20);
    01212   VehicleOrderID moving_order = GB(p2,  0, 16);
    01213   VehicleOrderID target_order = GB(p2, 16, 16);
    01214
    01215   Vehicle *v = Vehicle::GetIfValid(veh);
    01216   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01217
    01218   CommandCost ret = CheckOwnership(v->owner);
    01219   if (ret.Failed()) return ret;
    01220
    01221   /* Don't make senseless movements */
    01222   if (moving_order >= v->GetNumOrders() || target_order >= v->GetNumOrders() ||
    01223       moving_order == target_order || v->GetNumOrders() <= 1) return CMD_ERROR;
    01224
    01225   Order *moving_one = v->GetOrder(moving_order);
    01226   /* Don't move an empty order */
    01227   if (moving_one == NULL) return CMD_ERROR;
    01228
    01229   if (flags & DC_EXEC) {
    01230     v->orders.list->MoveOrder(moving_order, target_order);
    01231
    01232     /* Update shared list */
    01233     Vehicle *u = v->FirstShared();
    01234
    01235     DeleteOrderWarnings(u);
    01236
    01237     for (; u != NULL; u = u->NextShared()) {
    01238       /* Update the current order.
    01239        * There are multiple ways to move orders, which result in cur_implicit_order_index
    01240        * and cur_real_order_index to not longer make any sense. E.g. moving another
    01241        * real order between them.
    01242        *
    01243        * Basically one could choose to preserve either of them, but not both.
    01244        * While both ways are suitable in this or that case from a human point of view, neither
    01245        * of them makes really sense.
    01246        * However, from an AI point of view, preserving cur_real_order_index is the most
    01247        * predictable and transparent behaviour.
    01248        *
    01249        * With that decision it basically does not matter what we do to cur_implicit_order_index.
    01250        * If we change orders between the implict- and real-index, the implicit orders are mostly likely
    01251        * completely out-dated anyway. So, keep it simple and just keep cur_implicit_order_index as well.
    01252        * The worst which can happen is that a lot of implicit orders are removed when reaching current_order.
    01253        */
    01254       if (u->cur_real_order_index == moving_order) {
    01255         u->cur_real_order_index = target_order;
    01256       } else if (u->cur_real_order_index > moving_order && u->cur_real_order_index <= target_order) {
    01257         u->cur_real_order_index--;
    01258       } else if (u->cur_real_order_index < moving_order && u->cur_real_order_index >= target_order) {
    01259         u->cur_real_order_index++;
    01260       }
    01261
    01262       if (u->cur_implicit_order_index == moving_order) {
    01263         u->cur_implicit_order_index = target_order;
    01264       } else if (u->cur_implicit_order_index > moving_order && u->cur_implicit_order_index <= target_order) {
    01265         u->cur_implicit_order_index--;
    01266       } else if (u->cur_implicit_order_index < moving_order && u->cur_implicit_order_index >= target_order) {
    01267         u->cur_implicit_order_index++;
    01268       }
    01269
    01270       assert(v->orders.list == u->orders.list);
    01271       /* Update any possible open window of the vehicle */
    01272       InvalidateVehicleOrder(u, moving_order | (target_order << 8));
    01273     }
    01274
    01275     /* As we move an order, the order to skip to will be 'wrong'. */
    01276     Order *order;
    01277     FOR_VEHICLE_ORDERS(v, order) {
    01278       if (order->IsType(OT_CONDITIONAL)) {
    01279         VehicleOrderID order_id = order->GetConditionSkipToOrder();
    01280         if (order_id == moving_order) {
    01281           order_id = target_order;
    01282         } else if (order_id > moving_order && order_id <= target_order) {
    01283           order_id--;
    01284         } else if (order_id < moving_order && order_id >= target_order) {
    01285           order_id++;
    01286         }
    01287         order->SetConditionSkipToOrder(order_id);
    01288       }
    01289     }
    01290
    01291     /* Make sure to rebuild the whole list */
    01292     InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01293   }
    01294
    01295   return CommandCost();
    01296 }
    01297
    01313 CommandCost CmdModifyOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01314 {
    01315   VehicleOrderID sel_ord = GB(p1, 20,  8);
    01316   VehicleID veh          = GB(p1,  0, 20);
    01317   ModifyOrderFlags mof   = Extract<ModifyOrderFlags, 0, 4>(p2);
    01318   uint16 data            = GB(p2,  4, 11);
    01319
    01320   if (mof >= MOF_END) return CMD_ERROR;
    01321
    01322   Vehicle *v = Vehicle::GetIfValid(veh);
    01323   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01324
    01325   CommandCost ret = CheckOwnership(v->owner);
    01326   if (ret.Failed()) return ret;
    01327
    01328   /* Is it a valid order? */
    01329   if (sel_ord >= v->GetNumOrders()) return CMD_ERROR;
    01330
    01331   Order *order = v->GetOrder(sel_ord);
    01332   switch (order->GetType()) {
    01333     case OT_GOTO_STATION:
    01334       if (mof == MOF_COND_VARIABLE || mof == MOF_COND_COMPARATOR || mof == MOF_DEPOT_ACTION || mof == MOF_COND_VALUE) return CMD_ERROR;
    01335       break;
    01336
    01337     case OT_GOTO_DEPOT:
    01338       if (mof != MOF_NON_STOP && mof != MOF_DEPOT_ACTION) return CMD_ERROR;
    01339       break;
    01340
    01341     case OT_GOTO_WAYPOINT:
    01342       if (mof != MOF_NON_STOP) return CMD_ERROR;
    01343       break;
    01344
    01345     case OT_CONDITIONAL:
    01346       if (mof != MOF_COND_VARIABLE && mof != MOF_COND_COMPARATOR && mof != MOF_COND_VALUE && mof != MOF_COND_DESTINATION) return CMD_ERROR;
    01347       break;
    01348
    01349     default:
    01350       return CMD_ERROR;
    01351   }
    01352
    01353   switch (mof) {
    01354     default: NOT_REACHED();
    01355
    01356     case MOF_NON_STOP:
    01357       if (!v->IsGroundVehicle()) return CMD_ERROR;
    01358       if (data >= ONSF_END) return CMD_ERROR;
    01359       if (data == order->GetNonStopType()) return CMD_ERROR;
    01360       break;
    01361
    01362     case MOF_STOP_LOCATION:
    01363       if (v->type != VEH_TRAIN) return CMD_ERROR;
    01364       if (data >= OSL_END) return CMD_ERROR;
    01365       break;
    01366
    01367     case MOF_UNLOAD:
    01368       if ((data & ~(OUFB_UNLOAD | OUFB_TRANSFER | OUFB_NO_UNLOAD)) != 0) return CMD_ERROR;
    01369       /* Unload and no-unload are mutual exclusive and so are transfer and no unload. */
    01370       if (data != 0 && ((data & (OUFB_UNLOAD | OUFB_TRANSFER)) != 0) == ((data & OUFB_NO_UNLOAD) != 0)) return CMD_ERROR;
    01371       if (data == order->GetUnloadType()) return CMD_ERROR;
    01372       break;
    01373
    01374     case MOF_LOAD:
    01375       if (data > OLFB_NO_LOAD || data == 1) return CMD_ERROR;
    01376       if (data == order->GetLoadType()) return CMD_ERROR;
    01377       break;
    01378
    01379     case MOF_DEPOT_ACTION:
    01380       if (data >= DA_END) return CMD_ERROR;
    01381       break;
    01382
    01383     case MOF_COND_VARIABLE:
    01384       if (data >= OCV_END) return CMD_ERROR;
    01385       break;
    01386
    01387     case MOF_COND_COMPARATOR:
    01388       if (data >= OCC_END) return CMD_ERROR;
    01389       switch (order->GetConditionVariable()) {
    01390         case OCV_UNCONDITIONALLY: return CMD_ERROR;
    01391
    01392         case OCV_REQUIRES_SERVICE:
    01393           if (data != OCC_IS_TRUE && data != OCC_IS_FALSE) return CMD_ERROR;
    01394           break;
    01395
    01396         default:
    01397           if (data == OCC_IS_TRUE || data == OCC_IS_FALSE) return CMD_ERROR;
    01398           break;
    01399       }
    01400       break;
    01401
    01402     case MOF_COND_VALUE:
    01403       switch (order->GetConditionVariable()) {
    01404         case OCV_UNCONDITIONALLY: return CMD_ERROR;
    01405
    01406         case OCV_LOAD_PERCENTAGE:
    01407         case OCV_RELIABILITY:
    01408           if (data > 100) return CMD_ERROR;
    01409           break;
    01410
    01411         default:
    01412           if (data > 2047) return CMD_ERROR;
    01413           break;
    01414       }
    01415       break;
    01416
    01417     case MOF_COND_DESTINATION:
    01418       if (data >= v->GetNumOrders()) return CMD_ERROR;
    01419       break;
    01420   }
    01421
    01422   if (flags & DC_EXEC) {
    01423     switch (mof) {
    01424       case MOF_NON_STOP:
    01425         order->SetNonStopType((OrderNonStopFlags)data);
    01426         if (data & ONSF_NO_STOP_AT_DESTINATION_STATION) order->SetRefit(CT_NO_REFIT);
    01427         break;
    01428
    01429       case MOF_STOP_LOCATION:
    01430         order->SetStopLocation((OrderStopLocation)data);
    01431         break;
    01432
    01433       case MOF_UNLOAD:
    01434         order->SetUnloadType((OrderUnloadFlags)data);
    01435         break;
    01436
    01437       case MOF_LOAD:
    01438         order->SetLoadType((OrderLoadFlags)data);
    01439         if (data & OLFB_NO_LOAD) order->SetRefit(CT_NO_REFIT);
    01440         break;
    01441
    01442       case MOF_DEPOT_ACTION: {
    01443         switch (data) {
    01444           case DA_ALWAYS_GO:
    01445             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01446             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01447             break;
    01448
    01449           case DA_SERVICE:
    01450             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() | ODTFB_SERVICE));
    01451             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01452             order->SetRefit(CT_NO_REFIT);
    01453             break;
    01454
    01455           case DA_STOP:
    01456             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01457             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() | ODATFB_HALT));
    01458             order->SetRefit(CT_NO_REFIT);
    01459             break;
    01460
    01461           default:
    01462             NOT_REACHED();
    01463         }
    01464         break;
    01465       }
    01466
    01467       case MOF_COND_VARIABLE: {
    01468         order->SetConditionVariable((OrderConditionVariable)data);
    01469
    01470         OrderConditionComparator occ = order->GetConditionComparator();
    01471         switch (order->GetConditionVariable()) {
    01472           case OCV_UNCONDITIONALLY:
    01473             order->SetConditionComparator(OCC_EQUALS);
    01474             order->SetConditionValue(0);
    01475             break;
    01476
    01477           case OCV_REQUIRES_SERVICE:
    01478             if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) order->SetConditionComparator(OCC_IS_TRUE);
    01479             break;
    01480
    01481           case OCV_LOAD_PERCENTAGE:
    01482           case OCV_RELIABILITY:
    01483             if (order->GetConditionValue() > 100) order->SetConditionValue(100);
    01484             /* FALL THROUGH */
    01485           default:
    01486             if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) order->SetConditionComparator(OCC_EQUALS);
    01487             break;
    01488         }
    01489         break;
    01490       }
    01491
    01492       case MOF_COND_COMPARATOR:
    01493         order->SetConditionComparator((OrderConditionComparator)data);
    01494         break;
    01495
    01496       case MOF_COND_VALUE:
    01497         order->SetConditionValue(data);
    01498         break;
    01499
    01500       case MOF_COND_DESTINATION:
    01501         order->SetConditionSkipToOrder(data);
    01502         break;
    01503
    01504       default: NOT_REACHED();
    01505     }
    01506
    01507     /* Update the windows and full load flags, also for vehicles that share the same order list */
    01508     Vehicle *u = v->FirstShared();
    01509     DeleteOrderWarnings(u);
    01510     for (; u != NULL; u = u->NextShared()) {
    01511       /* Toggle u->current_order "Full load" flag if it changed.
    01512        * However, as the same flag is used for depot orders, check
    01513        * whether we are not going to a depot as there are three
    01514        * cases where the full load flag can be active and only
    01515        * one case where the flag is used for depot orders. In the
    01516        * other cases for the OrderTypeByte the flags are not used,
    01517        * so do not care and those orders should not be active
    01518        * when this function is called.
    01519        */
    01520       if (sel_ord == u->cur_real_order_index &&
    01521           (u->current_order.IsType(OT_GOTO_STATION) || u->current_order.IsType(OT_LOADING)) &&
    01522           u->current_order.GetLoadType() != order->GetLoadType()) {
    01523         u->current_order.SetLoadType(order->GetLoadType());
    01524       }
    01525       InvalidateVehicleOrder(u, -2);
    01526     }
    01527   }
    01528
    01529   return CommandCost();
    01530 }
    01531
    01539 static bool CheckAircraftOrderDistance(const Aircraft *v_new, const Vehicle *v_order, const Order *first)
    01540 {
    01541   if (first == NULL || v_new->acache.cached_max_range == 0) return true;
    01542
    01543   /* Iterate over all orders to check the distance between all
    01544    * 'goto' orders and their respective next order (of any type). */
    01545   for (const Order *o = first; o != NULL; o = o->next) {
    01546     switch (o->GetType()) {
    01547       case OT_GOTO_STATION:
    01548       case OT_GOTO_DEPOT:
    01549       case OT_GOTO_WAYPOINT:
    01550         /* If we don't have a next order, we've reached the end and must check the first order instead. */
    01551         if (GetOrderDistance(o, o->next != NULL ? o->next : first, v_order) > v_new->acache.cached_max_range_sqr) return false;
    01552         break;
    01553
    01554       default: break;
    01555     }
    01556   }
    01557
    01558   return true;
    01559 }
    01560
    01572 CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01573 {
    01574   VehicleID veh_src = GB(p2, 0, 20);
    01575   VehicleID veh_dst = GB(p1, 0, 20);
    01576
    01577   Vehicle *dst = Vehicle::GetIfValid(veh_dst);
    01578   if (dst == NULL || !dst->IsPrimaryVehicle()) return CMD_ERROR;
    01579
    01580   CommandCost ret = CheckOwnership(dst->owner);
    01581   if (ret.Failed()) return ret;
    01582
    01583   switch (GB(p1, 30, 2)) {
    01584     case CO_SHARE: {
    01585       Vehicle *src = Vehicle::GetIfValid(veh_src);
    01586
    01587       /* Sanity checks */
    01588       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
    01589
    01590       CommandCost ret = CheckOwnership(src->owner);
    01591       if (ret.Failed()) return ret;
    01592
    01593       /* Trucks can't share orders with busses (and visa versa) */
    01594       if (src->type == VEH_ROAD && RoadVehicle::From(src)->IsBus() != RoadVehicle::From(dst)->IsBus()) {
    01595         return CMD_ERROR;
    01596       }
    01597
    01598       /* Is the vehicle already in the shared list? */
    01599       if (src->FirstShared() == dst->FirstShared()) return CMD_ERROR;
    01600
    01601       const Order *order;
    01602
    01603       FOR_VEHICLE_ORDERS(src, order) {
    01604         if (!OrderGoesToStation(dst, order)) continue;
    01605
    01606         /* Allow copying unreachable destinations if they were already unreachable for the source.
    01607          * This is basically to allow cloning / autorenewing / autoreplacing vehicles, while the stations
    01608          * are temporarily invalid due to reconstruction. */
    01609         const Station *st = Station::Get(order->GetDestination());
    01610         if (CanVehicleUseStation(src, st) && !CanVehicleUseStation(dst, st)) {
    01611           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
    01612         }
    01613       }
    01614
    01615       /* Check for aircraft range limits. */
    01616       if (dst->type == VEH_AIRCRAFT && !CheckAircraftOrderDistance(Aircraft::From(dst), src, src->GetFirstOrder())) {
    01617         return_cmd_error(STR_ERROR_AIRCRAFT_NOT_ENOUGH_RANGE);
    01618       }
    01619
    01620       if (src->orders.list == NULL && !OrderList::CanAllocateItem()) {
    01621         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    01622       }
    01623
    01624       if (flags & DC_EXEC) {
    01625         /* If the destination vehicle had a OrderList, destroy it.
    01626          * We only reset the order indices, if the new orders are obviously different.
    01627          * (We mainly do this to keep the order indices valid and in range.) */
    01628         DeleteVehicleOrders(dst, false, dst->GetNumOrders() != src->GetNumOrders());
    01629
    01630         dst->orders.list = src->orders.list;
    01631
    01632         /* Link this vehicle in the shared-list */
    01633         dst->AddToShared(src);
    01634
    01635         InvalidateVehicleOrder(dst, -1);
    01636         InvalidateVehicleOrder(src, -2);
    01637
    01638         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01639       }
    01640       break;
    01641     }
    01642
    01643     case CO_COPY: {
    01644       Vehicle *src = Vehicle::GetIfValid(veh_src);
    01645
    01646       /* Sanity checks */
    01647       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
    01648
    01649       CommandCost ret = CheckOwnership(src->owner);
    01650       if (ret.Failed()) return ret;
    01651
    01652       /* Trucks can't copy all the orders from busses (and visa versa),
    01653        * and neither can helicopters and aircarft. */
    01654       const Order *order;
    01655       FOR_VEHICLE_ORDERS(src, order) {
    01656         if (OrderGoesToStation(dst, order) &&
    01657             !CanVehicleUseStation(dst, Station::Get(order->GetDestination()))) {
    01658           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
    01659         }
    01660       }
    01661
    01662       /* Check for aircraft range limits. */
    01663       if (dst->type == VEH_AIRCRAFT && !CheckAircraftOrderDistance(Aircraft::From(dst), src, src->GetFirstOrder())) {
    01664         return_cmd_error(STR_ERROR_AIRCRAFT_NOT_ENOUGH_RANGE);
    01665       }
    01666
    01667       /* make sure there are orders available */
    01668       if (!Order::CanAllocateItem(src->GetNumOrders()) || !OrderList::CanAllocateItem()) {
    01669         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    01670       }
    01671
    01672       if (flags & DC_EXEC) {
    01673         const Order *order;
    01674         Order *first = NULL;
    01675         Order **order_dst;
    01676
    01677         /* If the destination vehicle had an order list, destroy the chain but keep the OrderList.
    01678          * We only reset the order indices, if the new orders are obviously different.
    01679          * (We mainly do this to keep the order indices valid and in range.) */
    01680         DeleteVehicleOrders(dst, true, dst->GetNumOrders() != src->GetNumOrders());
    01681
    01682         order_dst = &first;
    01683         FOR_VEHICLE_ORDERS(src, order) {
    01684           *order_dst = new Order();
    01685           (*order_dst)->AssignOrder(*order);
    01686           order_dst = &(*order_dst)->next;
    01687         }
    01688         if (dst->orders.list == NULL) {
    01689           dst->orders.list = new OrderList(first, dst);
    01690         } else {
    01691           assert(dst->orders.list->GetFirstOrder() == NULL);
    01692           assert(!dst->orders.list->IsShared());
    01693           delete dst->orders.list;
    01694           assert(OrderList::CanAllocateItem());
    01695           dst->orders.list = new OrderList(first, dst);
    01696         }
    01697
    01698         InvalidateVehicleOrder(dst, -1);
    01699
    01700         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01701       }
    01702       break;
    01703     }
    01704
    01705     case CO_UNSHARE: return DecloneOrder(dst, flags);
    01706     default: return CMD_ERROR;
    01707   }
    01708
    01709   return CommandCost();
    01710 }
    01711
    01724 CommandCost CmdOrderRefit(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01725 {
    01726   VehicleID veh = GB(p1, 0, 20);
    01727   VehicleOrderID order_number  = GB(p2, 16, 8);
    01728   CargoID cargo = GB(p2, 0, 8);
    01729   byte subtype  = GB(p2, 8, 8);
    01730
    01731   if (cargo >= NUM_CARGO && cargo != CT_NO_REFIT && cargo != CT_AUTO_REFIT) return CMD_ERROR;
    01732
    01733   const Vehicle *v = Vehicle::GetIfValid(veh);
    01734   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01735
    01736   CommandCost ret = CheckOwnership(v->owner);
    01737   if (ret.Failed()) return ret;
    01738
    01739   Order *order = v->GetOrder(order_number);
    01740   if (order == NULL) return CMD_ERROR;
    01741
    01742   /* Automatic refit cargo is only supported for goto station orders. */
    01743   if (cargo == CT_AUTO_REFIT && !order->IsType(OT_GOTO_STATION)) return CMD_ERROR;
    01744
    01745   if (flags & DC_EXEC) {
    01746     order->SetRefit(cargo, subtype);
    01747
    01748     /* Make the depot order an 'always go' order. */
    01749     if (cargo != CT_NO_REFIT && order->IsType(OT_GOTO_DEPOT)) {
    01750       order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01751       order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01752     }
    01753
    01754     for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
    01755       /* Update any possible open window of the vehicle */
    01756       InvalidateVehicleOrder(u, -2);
    01757
    01758       /* If the vehicle already got the current depot set as current order, then update current order as well */
    01759       if (u->cur_real_order_index == order_number && (u->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) {
    01760         u->current_order.SetRefit(cargo, subtype);
    01761       }
    01762     }
    01763   }
    01764
    01765   return CommandCost();
    01766 }
    01767
    01768
    01774 void CheckOrders(const Vehicle *v)
    01775 {
    01776   /* Does the user wants us to check things? */
    01777   if (_settings_client.gui.order_review_system == 0) return;
    01778
    01779   /* Do nothing for crashed vehicles */
    01780   if (v->vehstatus & VS_CRASHED) return;
    01781
    01782   /* Do nothing for stopped vehicles if setting is '1' */
    01783   if (_settings_client.gui.order_review_system == 1 && (v->vehstatus & VS_STOPPED)) return;
    01784
    01785   /* do nothing we we're not the first vehicle in a share-chain */
    01786   if (v->FirstShared() != v) return;
    01787
    01788   /* Only check every 20 days, so that we don't flood the message log */
    01789   if (v->owner == _local_company && v->day_counter % 20 == 0) {
    01790     int n_st, problem_type = -1;
    01791     const Order *order;
    01792     int message = 0;
    01793
    01794     /* Check the order list */
    01795     n_st = 0;
    01796
    01797     FOR_VEHICLE_ORDERS(v, order) {
    01798       /* Dummy order? */
    01799       if (order->IsType(OT_DUMMY)) {
    01800         problem_type = 1;
    01801         break;
    01802       }
    01803       /* Does station have a load-bay for this vehicle? */
    01804       if (order->IsType(OT_GOTO_STATION)) {
    01805         const Station *st = Station::Get(order->GetDestination());
    01806
    01807         n_st++;
    01808         if (!CanVehicleUseStation(v, st)) problem_type = 3;
    01809       }
    01810     }
    01811
    01812     /* Check if the last and the first order are the same */
    01813     if (v->GetNumOrders() > 1) {
    01814       const Order *last = v->GetLastOrder();
    01815
    01816       if (v->orders.list->GetFirstOrder()->Equals(*last)) {
    01817         problem_type = 2;
    01818       }
    01819     }
    01820
    01821     /* Do we only have 1 station in our order list? */
    01822     if (n_st < 2 && problem_type == -1) problem_type = 0;
    01823
    01824 #ifndef NDEBUG
    01825     if (v->orders.list != NULL) v->orders.list->DebugCheckSanity();
    01826 #endif
    01827
    01828     /* We don't have a problem */
    01829     if (problem_type < 0) return;
    01830
    01831     message = STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS + problem_type;
    01832     //DEBUG(misc, 3, "Triggered News Item for vehicle %d", v->index);
    01833
    01834     SetDParam(0, v->index);
    01835     AddVehicleAdviceNewsItem(message, v->index);
    01836   }
    01837 }
    01838
    01844 void RemoveOrderFromAllVehicles(OrderType type, DestinationID destination)
    01845 {
    01846   Vehicle *v;
    01847
    01848   /* Aircraft have StationIDs for depot orders and never use DepotIDs
    01849    * This fact is handled specially below
    01850    */
    01851
    01852   /* Go through all vehicles */
    01853   FOR_ALL_VEHICLES(v) {
    01854     Order *order;
    01855
    01856     order = &v->current_order;
    01857     if ((v->type == VEH_AIRCRAFT && order->IsType(OT_GOTO_DEPOT) ? OT_GOTO_STATION : order->GetType()) == type &&
    01858         v->current_order.GetDestination() == destination) {
    01859       order->MakeDummy();
    01860       SetWindowDirty(WC_VEHICLE_VIEW, v->index);
    01861     }
    01862
    01863     /* Clear the order from the order-list */
    01864     int id = -1;
    01865     FOR_VEHICLE_ORDERS(v, order) {
    01866       id++;
    01867 restart:
    01868
    01869       OrderType ot = order->GetType();
    01870       if (ot == OT_GOTO_DEPOT && (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) continue;
    01871       if (ot == OT_IMPLICIT || (v->type == VEH_AIRCRAFT && ot == OT_GOTO_DEPOT)) ot = OT_GOTO_STATION;
    01872       if (ot == type && order->GetDestination() == destination) {
    01873         /* We want to clear implicit orders, but we don't want to make them
    01874          * dummy orders. They should just vanish. Also check the actual order
    01875          * type as ot is currently OT_GOTO_STATION. */
    01876         if (order->IsType(OT_IMPLICIT)) {
    01877           order = order->next; // DeleteOrder() invalidates current order
    01878           DeleteOrder(v, id);
    01879           if (order != NULL) goto restart;
    01880           break;
    01881         }
    01882
    01883         order->MakeDummy();
    01884         for (const Vehicle *w = v->FirstShared(); w != NULL; w = w->NextShared()) {
    01885           /* In GUI, simulate by removing the order and adding it back */
    01886           InvalidateVehicleOrder(w, id | (INVALID_VEH_ORDER_ID << 8));
    01887           InvalidateVehicleOrder(w, (INVALID_VEH_ORDER_ID << 8) | id);
    01888         }
    01889       }
    01890     }
    01891   }
    01892
    01893   OrderBackup::RemoveOrder(type, destination);
    01894 }
    01895
    01900 bool Vehicle::HasDepotOrder() const
    01901 {
    01902   const Order *order;
    01903
    01904   FOR_VEHICLE_ORDERS(this, order) {
    01905     if (order->IsType(OT_GOTO_DEPOT)) return true;
    01906   }
    01907
    01908   return false;
    01909 }
    01910
    01920 void DeleteVehicleOrders(Vehicle *v, bool keep_orderlist, bool reset_order_indices)
    01921 {
    01922   DeleteOrderWarnings(v);
    01923
    01924   if (v->IsOrderListShared()) {
    01925     /* Remove ourself from the shared order list. */
    01926     v->RemoveFromShared();
    01927     v->orders.list = NULL;
    01928   } else if (v->orders.list != NULL) {
    01929     /* Remove the orders */
    01930     v->orders.list->FreeChain(keep_orderlist);
    01931     if (!keep_orderlist) v->orders.list = NULL;
    01932   }
    01933
    01934   if (reset_order_indices) {
    01935     v->cur_implicit_order_index = v->cur_real_order_index = 0;
    01936     if (v->current_order.IsType(OT_LOADING)) {
    01937       CancelLoadingDueToDeletedOrder(v);
    01938     }
    01939   }
    01940 }
    01941
    01949 uint16 GetServiceIntervalClamped(uint interval, CompanyID company_id)
    01950 {
    01951   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);
    01952 }
    01953
    01962 static bool CheckForValidOrders(const Vehicle *v)
    01963 {
    01964   const Order *order;
    01965
    01966   FOR_VEHICLE_ORDERS(v, order) {
    01967     switch (order->GetType()) {
    01968       case OT_GOTO_STATION:
    01969       case OT_GOTO_DEPOT:
    01970       case OT_GOTO_WAYPOINT:
    01971         return true;
    01972
    01973       default:
    01974         break;
    01975     }
    01976   }
    01977
    01978   return false;
    01979 }
    01980
    01984 static bool OrderConditionCompare(OrderConditionComparator occ, int variable, int value)
    01985 {
    01986   switch (occ) {
    01987     case OCC_EQUALS:      return variable == value;
    01988     case OCC_NOT_EQUALS:  return variable != value;
    01989     case OCC_LESS_THAN:   return variable <  value;
    01990     case OCC_LESS_EQUALS: return variable <= value;
    01991     case OCC_MORE_THAN:   return variable >  value;
    01992     case OCC_MORE_EQUALS: return variable >= value;
    01993     case OCC_IS_TRUE:     return variable != 0;
    01994     case OCC_IS_FALSE:    return variable == 0;
    01995     default: NOT_REACHED();
    01996   }
    01997 }
    01998
    02005 VehicleOrderID ProcessConditionalOrder(const Order *order, const Vehicle *v)
    02006 {
    02007   if (order->GetType() != OT_CONDITIONAL) return INVALID_VEH_ORDER_ID;
    02008
    02009   bool skip_order = false;
    02010   OrderConditionComparator occ = order->GetConditionComparator();
    02011   uint16 value = order->GetConditionValue();
    02012
    02013   switch (order->GetConditionVariable()) {
    02014     case OCV_LOAD_PERCENTAGE:    skip_order = OrderConditionCompare(occ, CalcPercentVehicleFilled(v, NULL), value); break;
    02015     case OCV_RELIABILITY:        skip_order = OrderConditionCompare(occ, ToPercent16(v->reliability),       value); break;
    02016     case OCV_MAX_SPEED:          skip_order = OrderConditionCompare(occ, v->GetDisplayMaxSpeed() * 10 / 16, value); break;
    02017     case OCV_AGE:                skip_order = OrderConditionCompare(occ, v->age / DAYS_IN_LEAP_YEAR,        value); break;
    02018     case OCV_REQUIRES_SERVICE:   skip_order = OrderConditionCompare(occ, v->NeedsServicing(),               value); break;
    02019     case OCV_UNCONDITIONALLY:    skip_order = true; break;
    02020     case OCV_REMAINING_LIFETIME: skip_order = OrderConditionCompare(occ, max(v->max_age - v->age + DAYS_IN_LEAP_YEAR - 1, 0) / DAYS_IN_LEAP_YEAR, value); break;
    02021     default: NOT_REACHED();
    02022   }
    02023
    02024   return skip_order ? order->GetConditionSkipToOrder() : (VehicleOrderID)INVALID_VEH_ORDER_ID;
    02025 }
    02026
    02034 bool UpdateOrderDest(Vehicle *v, const Order *order, int conditional_depth, bool pbs_look_ahead)
    02035 {
    02036   if (conditional_depth > v->GetNumOrders()) return false;
    02037
    02038   switch (order->GetType()) {
    02039     case OT_GOTO_STATION:
    02040       v->dest_tile = v->GetOrderStationLocation(order->GetDestination());
    02041       return true;
    02042
    02043     case OT_GOTO_DEPOT:
    02044       if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !v->NeedsServicing()) {
    02045         assert(!pbs_look_ahead);
    02046         UpdateVehicleTimetable(v, true);
    02047         v->IncrementRealOrderIndex();
    02048         break;
    02049       }
    02050
    02051       if (v->current_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) {
    02052         /* We need to search for the nearest depot (hangar). */
    02053         TileIndex location;
    02054         DestinationID destination;
    02055         bool reverse;
    02056
    02057         if (v->FindClosestDepot(&location, &destination, &reverse)) {
    02058           /* PBS reservations cannot reverse */
    02059           if (pbs_look_ahead && reverse) return false;
    02060
    02061           v->dest_tile = location;
    02062           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());
    02063
    02064           /* If there is no depot in front, reverse automatically (trains only) */
    02065           if (v->type == VEH_TRAIN && reverse) DoCommand(v->tile, v->index, 0, DC_EXEC, CMD_REVERSE_TRAIN_DIRECTION);
    02066
    02067           if (v->type == VEH_AIRCRAFT) {
    02068             Aircraft *a = Aircraft::From(v);
    02069             if (a->state == FLYING && a->targetairport != destination) {
    02070               /* The aircraft is now heading for a different hangar than the next in the orders */
    02071               extern void AircraftNextAirportPos_and_Order(Aircraft *a);
    02072               AircraftNextAirportPos_and_Order(a);
    02073             }
    02074           }
    02075           return true;
    02076         }
    02077
    02078         /* If there is no depot, we cannot help PBS either. */
    02079         if (pbs_look_ahead) return false;
    02080
    02081         UpdateVehicleTimetable(v, true);
    02082         v->IncrementRealOrderIndex();
    02083       } else {
    02084         if (v->type != VEH_AIRCRAFT) {
    02085           v->dest_tile = Depot::Get(order->GetDestination())->xy;
    02086         }
    02087         return true;
    02088       }
    02089       break;
    02090
    02091     case OT_GOTO_WAYPOINT:
    02092       v->dest_tile = Waypoint::Get(order->GetDestination())->xy;
    02093       return true;
    02094
    02095     case OT_CONDITIONAL: {
    02096       assert(!pbs_look_ahead);
    02097       VehicleOrderID next_order = ProcessConditionalOrder(order, v);
    02098       if (next_order != INVALID_VEH_ORDER_ID) {
    02099         /* Jump to next_order. cur_implicit_order_index becomes exactly that order,
    02100          * cur_real_order_index might come after next_order. */
    02101         UpdateVehicleTimetable(v, false);
    02102         v->cur_implicit_order_index = v->cur_real_order_index = next_order;
    02103         v->UpdateRealOrderIndex();
    02104         v->current_order_time += v->GetOrder(v->cur_real_order_index)->travel_time;
    02105
    02106         /* Disable creation of implicit orders.
    02107          * When inserting them we do not know that we would have to make the conditional orders point to them. */
    02108         if (v->IsGroundVehicle()) {
    02109           uint16 &gv_flags = v->GetGroundVehicleFlags();
    02110           SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
    02111         }
    02112       } else {
    02113         UpdateVehicleTimetable(v, true);
    02114         v->IncrementRealOrderIndex();
    02115       }
    02116       break;
    02117     }
    02118
    02119     default:
    02120       v->dest_tile = 0;
    02121       return false;
    02122   }
    02123
    02124   assert(v->cur_implicit_order_index < v->GetNumOrders());
    02125   assert(v->cur_real_order_index < v->GetNumOrders());
    02126
    02127   /* Get the current order */
    02128   order = v->GetOrder(v->cur_real_order_index);
    02129   if (order != NULL && order->IsType(OT_IMPLICIT)) {
    02130     assert(v->GetNumManualOrders() == 0);
    02131     order = NULL;
    02132   }
    02133
    02134   if (order == NULL) {
    02135     v->current_order.Free();
    02136     v->dest_tile = 0;
    02137     return false;
    02138   }
    02139
    02140   v->current_order = *order;
    02141   return UpdateOrderDest(v, order, conditional_depth + 1, pbs_look_ahead);
    02142 }
    02143
    02151 bool ProcessOrders(Vehicle *v)
    02152 {
    02153   switch (v->current_order.GetType()) {
    02154     case OT_GOTO_DEPOT:
    02155       /* Let a depot order in the orderlist interrupt. */
    02156       if (!(v->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) return false;
    02157       break;
    02158
    02159     case OT_LOADING:
    02160       return false;
    02161
    02162     case OT_LEAVESTATION:
    02163       if (v->type != VEH_AIRCRAFT) return false;
    02164       break;
    02165
    02166     default: break;
    02167   }
    02168
    02176   bool may_reverse = v->current_order.IsType(OT_NOTHING);
    02177
    02178   /* Check if we've reached a 'via' destination. */
    02179   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)) &&
    02180       IsTileType(v->tile, MP_STATION) &&
    02181       v->current_order.GetDestination() == GetStationIndex(v->tile)) {
    02182     v->DeleteUnreachedImplicitOrders();
    02183     /* We set the last visited station here because we do not want
    02184      * the train to stop at this 'via' station if the next order
    02185      * is a no-non-stop order; in that case not setting the last
    02186      * visited station will cause the vehicle to still stop. */
    02187     v->last_station_visited = v->current_order.GetDestination();
    02188     UpdateVehicleTimetable(v, true);
    02189     v->IncrementImplicitOrderIndex();
    02190   }
    02191
    02192   /* Get the current order */
    02193   assert(v->cur_implicit_order_index == 0 || v->cur_implicit_order_index < v->GetNumOrders());
    02194   v->UpdateRealOrderIndex();
    02195
    02196   const Order *order = v->GetOrder(v->cur_real_order_index);
    02197   if (order != NULL && order->IsType(OT_IMPLICIT)) {
    02198     assert(v->GetNumManualOrders() == 0);
    02199     order = NULL;
    02200   }
    02201
    02202   /* If no order, do nothing. */
    02203   if (order == NULL || (v->type == VEH_AIRCRAFT && !CheckForValidOrders(v))) {
    02204     if (v->type == VEH_AIRCRAFT) {
    02205       /* Aircraft do something vastly different here, so handle separately */
    02206       extern void HandleMissingAircraftOrders(Aircraft *v);
    02207       HandleMissingAircraftOrders(Aircraft::From(v));
    02208       return false;
    02209     }
    02210
    02211     v->current_order.Free();
    02212     v->dest_tile = 0;
    02213     return false;
    02214   }
    02215
    02216   /* If it is unchanged, keep it. */
    02217   if (order->Equals(v->current_order) && (v->type == VEH_AIRCRAFT || v->dest_tile != 0) &&
    02218       (v->type != VEH_SHIP || !order->IsType(OT_GOTO_STATION) || Station::Get(order->GetDestination())->dock_tile != INVALID_TILE)) {
    02219     return false;
    02220   }
    02221
    02222   /* Otherwise set it, and determine the destination tile. */
    02223   v->current_order = *order;
    02224
    02225   InvalidateVehicleOrder(v, -2);
    02226   switch (v->type) {
    02227     default:
    02228       NOT_REACHED();
    02229
    02230     case VEH_ROAD:
    02231     case VEH_TRAIN:
    02232       break;
    02233
    02234     case VEH_AIRCRAFT:
    02235     case VEH_SHIP:
    02236       SetWindowClassesDirty(GetWindowClassForVehicleType(v->type));
    02237       break;
    02238   }
    02239
    02240   return UpdateOrderDest(v, order) && may_reverse;
    02241 }
    02242
    02250 bool Order::ShouldStopAtStation(const Vehicle *v, StationID station) const
    02251 {
    02252   bool is_dest_station = this->IsType(OT_GOTO_STATION) && this->dest == station;
    02253
    02254   return (!this->IsType(OT_GOTO_DEPOT) || (this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0) &&
    02255       v->last_station_visited != station && // Do stop only when we've not just been there
    02256       /* Finally do stop when there is no non-stop flag set for this type of station. */
    02257       !(this->GetNonStopType() & (is_dest_station ? ONSF_NO_STOP_AT_DESTINATION_STATION : ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS));
    02258 }
    02259
    02260 bool Order::CanLoadOrUnload() const
    02261 {
    02262   return (this->IsType(OT_GOTO_STATION) || this->IsType(OT_IMPLICIT)) &&
    02263       (this->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) == 0 &&
    02264       ((this->GetLoadType() & OLFB_NO_LOAD) == 0 ||
    02265       (this->GetUnloadType() & OUFB_NO_UNLOAD) == 0);
    02266 }
    02267
    02274 bool Order::CanLeaveWithCargo(bool has_cargo) const
    02275 {
    02276   return (this->GetLoadType() & OLFB_NO_LOAD) == 0 || (has_cargo &&
    02277       (this->GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) == 0);
    02278 }