# order_cmd.cpp

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    00001 /* $Id: order_cmd.cpp 26357 2014-02-19 20:56:44Z frosch $ */
    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
    00088 void Order::MakeGoToDepot(DepotID destination, OrderDepotTypeFlags order, OrderNonStopFlags non_stop_type, OrderDepotActionFlags action, CargoID cargo)
    00089 {
    00090   this->type = OT_GOTO_DEPOT;
    00091   this->SetDepotOrderType(order);
    00092   this->SetDepotActionType(action);
    00093   this->SetNonStopType(non_stop_type);
    00094   this->dest = destination;
    00095   this->SetRefit(cargo);
    00096 }
    00097
    00102 void Order::MakeGoToWaypoint(StationID destination)
    00103 {
    00104   this->type = OT_GOTO_WAYPOINT;
    00105   this->flags = 0;
    00106   this->dest = destination;
    00107 }
    00108
    00113 void Order::MakeLoading(bool ordered)
    00114 {
    00115   this->type = OT_LOADING;
    00116   if (!ordered) this->flags = 0;
    00117 }
    00118
    00122 void Order::MakeLeaveStation()
    00123 {
    00124   this->type = OT_LEAVESTATION;
    00125   this->flags = 0;
    00126 }
    00127
    00131 void Order::MakeDummy()
    00132 {
    00133   this->type = OT_DUMMY;
    00134   this->flags = 0;
    00135 }
    00136
    00141 void Order::MakeConditional(VehicleOrderID order)
    00142 {
    00143   this->type = OT_CONDITIONAL;
    00144   this->flags = order;
    00145   this->dest = 0;
    00146 }
    00147
    00152 void Order::MakeImplicit(StationID destination)
    00153 {
    00154   this->type = OT_IMPLICIT;
    00155   this->dest = destination;
    00156 }
    00157
    00163 void Order::SetRefit(CargoID cargo)
    00164 {
    00165   this->refit_cargo = cargo;
    00166 }
    00167
    00173 bool Order::Equals(const Order &other) const
    00174 {
    00175   /* In case of go to nearest depot orders we need "only" compare the flags
    00176    * with the other and not the nearest depot order bit or the actual
    00177    * destination because those get clear/filled in during the order
    00178    * evaluation. If we do not do this the order will continuously be seen as
    00179    * a different order and it will try to find a "nearest depot" every tick. */
    00180   if ((this->IsType(OT_GOTO_DEPOT) && this->type == other.type) &&
    00181       ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0 ||
    00182        (other.GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0)) {
    00183     return this->GetDepotOrderType() == other.GetDepotOrderType() &&
    00184         (this->GetDepotActionType() & ~ODATFB_NEAREST_DEPOT) == (other.GetDepotActionType() & ~ODATFB_NEAREST_DEPOT);
    00185   }
    00186
    00187   return this->type == other.type && this->flags == other.flags && this->dest == other.dest;
    00188 }
    00189
    00196 uint32 Order::Pack() const
    00197 {
    00198   return this->dest << 16 | this->flags << 8 | this->type;
    00199 }
    00200
    00206 uint16 Order::MapOldOrder() const
    00207 {
    00208   uint16 order = this->GetType();
    00209   switch (this->type) {
    00210     case OT_GOTO_STATION:
    00211       if (this->GetUnloadType() & OUFB_UNLOAD) SetBit(order, 5);
    00212       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
    00213       if (this->GetNonStopType() & ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS) SetBit(order, 7);
    00214       order |= GB(this->GetDestination(), 0, 8) << 8;
    00215       break;
    00216     case OT_GOTO_DEPOT:
    00217       if (!(this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) SetBit(order, 6);
    00218       SetBit(order, 7);
    00219       order |= GB(this->GetDestination(), 0, 8) << 8;
    00220       break;
    00221     case OT_LOADING:
    00222       if (this->GetLoadType() & OLFB_FULL_LOAD) SetBit(order, 6);
    00223       break;
    00224   }
    00225   return order;
    00226 }
    00227
    00232 Order::Order(uint32 packed)
    00233 {
    00234   this->type    = (OrderType)GB(packed,  0,  8);
    00235   this->flags   = GB(packed,  8,  8);
    00236   this->dest    = GB(packed, 16, 16);
    00237   this->next    = NULL;
    00238   this->refit_cargo   = CT_NO_REFIT;
    00239   this->wait_time     = 0;
    00240   this->travel_time   = 0;
    00241   this->max_speed     = UINT16_MAX;
    00242 }
    00243
    00249 void InvalidateVehicleOrder(const Vehicle *v, int data)
    00250 {
    00251   SetWindowDirty(WC_VEHICLE_VIEW, v->index);
    00252
    00253   if (data != 0) {
    00254     /* Calls SetDirty() too */
    00255     InvalidateWindowData(WC_VEHICLE_ORDERS,    v->index, data);
    00256     InvalidateWindowData(WC_VEHICLE_TIMETABLE, v->index, data);
    00257     return;
    00258   }
    00259
    00260   SetWindowDirty(WC_VEHICLE_ORDERS,    v->index);
    00261   SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00262 }
    00263
    00271 void Order::AssignOrder(const Order &other)
    00272 {
    00273   this->type  = other.type;
    00274   this->flags = other.flags;
    00275   this->dest  = other.dest;
    00276
    00277   this->refit_cargo   = other.refit_cargo;
    00278
    00279   this->wait_time   = other.wait_time;
    00280   this->travel_time = other.travel_time;
    00281   this->max_speed   = other.max_speed;
    00282 }
    00283
    00289 void OrderList::Initialize(Order *chain, Vehicle *v)
    00290 {
    00291   this->first = chain;
    00292   this->first_shared = v;
    00293
    00294   this->num_orders = 0;
    00295   this->num_manual_orders = 0;
    00296   this->num_vehicles = 1;
    00297   this->timetable_duration = 0;
    00298
    00299   for (Order *o = this->first; o != NULL; o = o->next) {
    00300     ++this->num_orders;
    00301     if (!o->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
    00302     this->timetable_duration += o->wait_time + o->travel_time;
    00303   }
    00304
    00305   for (Vehicle *u = this->first_shared->PreviousShared(); u != NULL; u = u->PreviousShared()) {
    00306     ++this->num_vehicles;
    00307     this->first_shared = u;
    00308   }
    00309
    00310   for (const Vehicle *u = v->NextShared(); u != NULL; u = u->NextShared()) ++this->num_vehicles;
    00311 }
    00312
    00318 void OrderList::FreeChain(bool keep_orderlist)
    00319 {
    00320   Order *next;
    00321   for (Order *o = this->first; o != NULL; o = next) {
    00322     next = o->next;
    00323     delete o;
    00324   }
    00325
    00326   if (keep_orderlist) {
    00327     this->first = NULL;
    00328     this->num_orders = 0;
    00329     this->num_manual_orders = 0;
    00330     this->timetable_duration = 0;
    00331   } else {
    00332     delete this;
    00333   }
    00334 }
    00335
    00341 Order *OrderList::GetOrderAt(int index) const
    00342 {
    00343   if (index < 0) return NULL;
    00344
    00345   Order *order = this->first;
    00346
    00347   while (order != NULL && index-- > 0) {
    00348     order = order->next;
    00349   }
    00350   return order;
    00351 }
    00352
    00364 const Order *OrderList::GetNextDecisionNode(const Order *next, uint hops) const
    00365 {
    00366   if (hops > this->GetNumOrders() || next == NULL) return NULL;
    00367
    00368   if (next->IsType(OT_CONDITIONAL)) {
    00369     if (next->GetConditionVariable() != OCV_UNCONDITIONALLY) return next;
    00370
    00371     /* We can evaluate trivial conditions right away. They're conceptually
    00372      * the same as regular order progression. */
    00373     return this->GetNextDecisionNode(
    00374         this->GetOrderAt(next->GetConditionSkipToOrder()),
    00375         hops + 1);
    00376   }
    00377
    00378   if (next->IsType(OT_GOTO_DEPOT)) {
    00379     if (next->GetDepotActionType() == ODATFB_HALT) return NULL;
    00380     if (next->IsRefit()) return next;
    00381   }
    00382
    00383   if (!next->CanLoadOrUnload()) {
    00384     return this->GetNextDecisionNode(this->GetNext(next), hops + 1);
    00385   }
    00386
    00387   return next;
    00388 }
    00389
    00399 StationIDStack OrderList::GetNextStoppingStation(const Vehicle *v, const Order *first, uint hops) const
    00400 {
    00401
    00402   const Order *next = first;
    00403   if (first == NULL) {
    00404     next = this->GetOrderAt(v->cur_implicit_order_index);
    00405     if (next == NULL) {
    00406       next = this->GetFirstOrder();
    00407       if (next == NULL) return INVALID_STATION;
    00408     } else {
    00409       /* GetNext never returns NULL if there is a valid station in the list.
    00410        * As the given "next" is already valid and a station in the list, we
    00411        * don't have to check for NULL here. */
    00412       next = this->GetNext(next);
    00413       assert(next != NULL);
    00414     }
    00415   }
    00416
    00417   do {
    00418     next = this->GetNextDecisionNode(next, ++hops);
    00419
    00420     /* Resolve possibly nested conditionals by estimation. */
    00421     while (next != NULL && next->IsType(OT_CONDITIONAL)) {
    00422       /* We return both options of conditional orders. */
    00423       const Order *skip_to = this->GetNextDecisionNode(
    00424           this->GetOrderAt(next->GetConditionSkipToOrder()), hops);
    00425       const Order *advance = this->GetNextDecisionNode(
    00426           this->GetNext(next), hops);
    00427       if (advance == NULL || advance == first || skip_to == advance) {
    00428         next = (skip_to == first) ? NULL : skip_to;
    00429       } else if (skip_to == NULL || skip_to == first) {
    00430         next = (advance == first) ? NULL : advance;
    00431       } else {
    00432         StationIDStack st1 = this->GetNextStoppingStation(v, skip_to, hops);
    00433         StationIDStack st2 = this->GetNextStoppingStation(v, advance, hops);
    00434         while (!st2.IsEmpty()) st1.Push(st2.Pop());
    00435         return st1;
    00436       }
    00437       ++hops;
    00438     }
    00439
    00440     /* Don't return a next stop if the vehicle has to unload everything. */
    00441     if (next == NULL || ((next->IsType(OT_GOTO_STATION) || next->IsType(OT_IMPLICIT)) &&
    00442         next->GetDestination() == v->last_station_visited &&
    00443         (next->GetUnloadType() & (OUFB_TRANSFER | OUFB_UNLOAD)) != 0)) {
    00444       return INVALID_STATION;
    00445     }
    00446   } while (next->IsType(OT_GOTO_DEPOT) || next->GetDestination() == v->last_station_visited);
    00447
    00448   return next->GetDestination();
    00449 }
    00450
    00456 void OrderList::InsertOrderAt(Order *new_order, int index)
    00457 {
    00458   if (this->first == NULL) {
    00459     this->first = new_order;
    00460   } else {
    00461     if (index == 0) {
    00462       /* Insert as first or only order */
    00463       new_order->next = this->first;
    00464       this->first = new_order;
    00465     } else if (index >= this->num_orders) {
    00466       /* index is after the last order, add it to the end */
    00467       this->GetLastOrder()->next = new_order;
    00468     } else {
    00469       /* Put the new order in between */
    00470       Order *order = this->GetOrderAt(index - 1);
    00471       new_order->next = order->next;
    00472       order->next = new_order;
    00473     }
    00474   }
    00475   ++this->num_orders;
    00476   if (!new_order->IsType(OT_IMPLICIT)) ++this->num_manual_orders;
    00477   this->timetable_duration += new_order->wait_time + new_order->travel_time;
    00478
    00479   /* We can visit oil rigs and buoys that are not our own. They will be shown in
    00480    * the list of stations. So, we need to invalidate that window if needed. */
    00481   if (new_order->IsType(OT_GOTO_STATION) || new_order->IsType(OT_GOTO_WAYPOINT)) {
    00482     BaseStation *bs = BaseStation::Get(new_order->GetDestination());
    00483     if (bs->owner == OWNER_NONE) InvalidateWindowClassesData(WC_STATION_LIST, 0);
    00484   }
    00485
    00486 }
    00487
    00488
    00493 void OrderList::DeleteOrderAt(int index)
    00494 {
    00495   if (index >= this->num_orders) return;
    00496
    00497   Order *to_remove;
    00498
    00499   if (index == 0) {
    00500     to_remove = this->first;
    00501     this->first = to_remove->next;
    00502   } else {
    00503     Order *prev = GetOrderAt(index - 1);
    00504     to_remove = prev->next;
    00505     prev->next = to_remove->next;
    00506   }
    00507   --this->num_orders;
    00508   if (!to_remove->IsType(OT_IMPLICIT)) --this->num_manual_orders;
    00509   this->timetable_duration -= (to_remove->wait_time + to_remove->travel_time);
    00510   delete to_remove;
    00511 }
    00512
    00518 void OrderList::MoveOrder(int from, int to)
    00519 {
    00520   if (from >= this->num_orders || to >= this->num_orders || from == to) return;
    00521
    00522   Order *moving_one;
    00523
    00524   /* Take the moving order out of the pointer-chain */
    00525   if (from == 0) {
    00526     moving_one = this->first;
    00527     this->first = moving_one->next;
    00528   } else {
    00529     Order *one_before = GetOrderAt(from - 1);
    00530     moving_one = one_before->next;
    00531     one_before->next = moving_one->next;
    00532   }
    00533
    00534   /* Insert the moving_order again in the pointer-chain */
    00535   if (to == 0) {
    00536     moving_one->next = this->first;
    00537     this->first = moving_one;
    00538   } else {
    00539     Order *one_before = GetOrderAt(to - 1);
    00540     moving_one->next = one_before->next;
    00541     one_before->next = moving_one;
    00542   }
    00543 }
    00544
    00550 void OrderList::RemoveVehicle(Vehicle *v)
    00551 {
    00552   --this->num_vehicles;
    00553   if (v == this->first_shared) this->first_shared = v->NextShared();
    00554 }
    00555
    00560 bool OrderList::IsVehicleInSharedOrdersList(const Vehicle *v) const
    00561 {
    00562   for (const Vehicle *v_shared = this->first_shared; v_shared != NULL; v_shared = v_shared->NextShared()) {
    00563     if (v_shared == v) return true;
    00564   }
    00565
    00566   return false;
    00567 }
    00568
    00574 int OrderList::GetPositionInSharedOrderList(const Vehicle *v) const
    00575 {
    00576   int count = 0;
    00577   for (const Vehicle *v_shared = v->PreviousShared(); v_shared != NULL; v_shared = v_shared->PreviousShared()) count++;
    00578   return count;
    00579 }
    00580
    00585 bool OrderList::IsCompleteTimetable() const
    00586 {
    00587   for (Order *o = this->first; o != NULL; o = o->next) {
    00588     /* Implicit orders are, by definition, not timetabled. */
    00589     if (o->IsType(OT_IMPLICIT)) continue;
    00590     if (!o->IsCompletelyTimetabled()) return false;
    00591   }
    00592   return true;
    00593 }
    00594
    00598 void OrderList::DebugCheckSanity() const
    00599 {
    00600   VehicleOrderID check_num_orders = 0;
    00601   VehicleOrderID check_num_manual_orders = 0;
    00602   uint check_num_vehicles = 0;
    00603   Ticks check_timetable_duration = 0;
    00604
    00605   DEBUG(misc, 6, "Checking OrderList %hu for sanity...", this->index);
    00606
    00607   for (const Order *o = this->first; o != NULL; o = o->next) {
    00608     ++check_num_orders;
    00609     if (!o->IsType(OT_IMPLICIT)) ++check_num_manual_orders;
    00610     check_timetable_duration += o->wait_time + o->travel_time;
    00611   }
    00612   assert(this->num_orders == check_num_orders);
    00613   assert(this->num_manual_orders == check_num_manual_orders);
    00614   assert(this->timetable_duration == check_timetable_duration);
    00615
    00616   for (const Vehicle *v = this->first_shared; v != NULL; v = v->NextShared()) {
    00617     ++check_num_vehicles;
    00618     assert(v->orders.list == this);
    00619   }
    00620   assert(this->num_vehicles == check_num_vehicles);
    00621   DEBUG(misc, 6, "... detected %u orders (%u manual), %u vehicles, %i ticks",
    00622       (uint)this->num_orders, (uint)this->num_manual_orders,
    00623       this->num_vehicles, this->timetable_duration);
    00624 }
    00625
    00633 static inline bool OrderGoesToStation(const Vehicle *v, const Order *o)
    00634 {
    00635   return o->IsType(OT_GOTO_STATION) ||
    00636       (v->type == VEH_AIRCRAFT && o->IsType(OT_GOTO_DEPOT) && !(o->GetDepotActionType() & ODATFB_NEAREST_DEPOT));
    00637 }
    00638
    00645 static void DeleteOrderWarnings(const Vehicle *v)
    00646 {
    00647   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS);
    00648   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_VOID_ORDER);
    00649   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_DUPLICATE_ENTRY);
    00650   DeleteVehicleNews(v->index, STR_NEWS_VEHICLE_HAS_INVALID_ENTRY);
    00651 }
    00652
    00659 TileIndex Order::GetLocation(const Vehicle *v, bool airport) const
    00660 {
    00661   switch (this->GetType()) {
    00662     case OT_GOTO_WAYPOINT:
    00663     case OT_GOTO_STATION:
    00664     case OT_IMPLICIT:
    00665       if (airport && v->type == VEH_AIRCRAFT) return Station::Get(this->GetDestination())->airport.tile;
    00666       return BaseStation::Get(this->GetDestination())->xy;
    00667
    00668     case OT_GOTO_DEPOT:
    00669       if ((this->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) return INVALID_TILE;
    00670       return (v->type == VEH_AIRCRAFT) ? Station::Get(this->GetDestination())->xy : Depot::Get(this->GetDestination())->xy;
    00671
    00672     default:
    00673       return INVALID_TILE;
    00674   }
    00675 }
    00676
    00686 uint GetOrderDistance(const Order *prev, const Order *cur, const Vehicle *v, int conditional_depth)
    00687 {
    00688   if (cur->IsType(OT_CONDITIONAL)) {
    00689     if (conditional_depth > v->GetNumOrders()) return 0;
    00690
    00691     conditional_depth++;
    00692
    00693     int dist1 = GetOrderDistance(prev, v->GetOrder(cur->GetConditionSkipToOrder()), v, conditional_depth);
    00694     int dist2 = GetOrderDistance(prev, cur->next == NULL ? v->orders.list->GetFirstOrder() : cur->next, v, conditional_depth);
    00695     return max(dist1, dist2);
    00696   }
    00697
    00698   TileIndex prev_tile = prev->GetLocation(v, true);
    00699   TileIndex cur_tile = cur->GetLocation(v, true);
    00700   if (prev_tile == INVALID_TILE || cur_tile == INVALID_TILE) return 0;
    00701   return v->type == VEH_AIRCRAFT ? DistanceSquare(prev_tile, cur_tile) : DistanceManhattan(prev_tile, cur_tile);
    00702 }
    00703
    00717 CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00718 {
    00719   VehicleID veh          = GB(p1,  0, 20);
    00720   VehicleOrderID sel_ord = GB(p1, 20, 8);
    00721   Order new_order(p2);
    00722
    00723   Vehicle *v = Vehicle::GetIfValid(veh);
    00724   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00725
    00726   CommandCost ret = CheckOwnership(v->owner);
    00727   if (ret.Failed()) return ret;
    00728
    00729   /* Check if the inserted order is to the correct destination (owner, type),
    00730    * and has the correct flags if any */
    00731   switch (new_order.GetType()) {
    00732     case OT_GOTO_STATION: {
    00733       const Station *st = Station::GetIfValid(new_order.GetDestination());
    00734       if (st == NULL) return CMD_ERROR;
    00735
    00736       if (st->owner != OWNER_NONE) {
    00737         CommandCost ret = CheckOwnership(st->owner);
    00738         if (ret.Failed()) return ret;
    00739       }
    00740
    00741       if (!CanVehicleUseStation(v, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00742       for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
    00743         if (!CanVehicleUseStation(u, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER_SHARED);
    00744       }
    00745
    00746       /* Non stop only allowed for ground vehicles. */
    00747       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
    00748
    00749       /* Filter invalid load/unload types. */
    00750       switch (new_order.GetLoadType()) {
    00751         case OLF_LOAD_IF_POSSIBLE: case OLFB_FULL_LOAD: case OLF_FULL_LOAD_ANY: case OLFB_NO_LOAD: break;
    00752         default: return CMD_ERROR;
    00753       }
    00754       switch (new_order.GetUnloadType()) {
    00755         case OUF_UNLOAD_IF_POSSIBLE: case OUFB_UNLOAD: case OUFB_TRANSFER: case OUFB_NO_UNLOAD: break;
    00756         default: return CMD_ERROR;
    00757       }
    00758
    00759       /* Filter invalid stop locations */
    00760       switch (new_order.GetStopLocation()) {
    00761         case OSL_PLATFORM_NEAR_END:
    00762         case OSL_PLATFORM_MIDDLE:
    00763           if (v->type != VEH_TRAIN) return CMD_ERROR;
    00764           /* FALL THROUGH */
    00765         case OSL_PLATFORM_FAR_END:
    00766           break;
    00767
    00768         default:
    00769           return CMD_ERROR;
    00770       }
    00771
    00772       break;
    00773     }
    00774
    00775     case OT_GOTO_DEPOT: {
    00776       if ((new_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) == 0) {
    00777         if (v->type == VEH_AIRCRAFT) {
    00778           const Station *st = Station::GetIfValid(new_order.GetDestination());
    00779
    00780           if (st == NULL) return CMD_ERROR;
    00781
    00782           CommandCost ret = CheckOwnership(st->owner);
    00783           if (ret.Failed()) return ret;
    00784
    00785           if (!CanVehicleUseStation(v, st) || !st->airport.HasHangar()) {
    00786             return CMD_ERROR;
    00787           }
    00788         } else {
    00789           const Depot *dp = Depot::GetIfValid(new_order.GetDestination());
    00790
    00791           if (dp == NULL) return CMD_ERROR;
    00792
    00793           CommandCost ret = CheckOwnership(GetTileOwner(dp->xy));
    00794           if (ret.Failed()) return ret;
    00795
    00796           switch (v->type) {
    00797             case VEH_TRAIN:
    00798               if (!IsRailDepotTile(dp->xy)) return CMD_ERROR;
    00799               break;
    00800
    00801             case VEH_ROAD:
    00802               if (!IsRoadDepotTile(dp->xy)) return CMD_ERROR;
    00803               break;
    00804
    00805             case VEH_SHIP:
    00806               if (!IsShipDepotTile(dp->xy)) return CMD_ERROR;
    00807               break;
    00808
    00809             default: return CMD_ERROR;
    00810           }
    00811         }
    00812       }
    00813
    00814       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && !v->IsGroundVehicle()) return CMD_ERROR;
    00815       if (new_order.GetDepotOrderType() & ~(ODTFB_PART_OF_ORDERS | ((new_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0 ? ODTFB_SERVICE : 0))) return CMD_ERROR;
    00816       if (new_order.GetDepotActionType() & ~(ODATFB_HALT | ODATFB_NEAREST_DEPOT)) return CMD_ERROR;
    00817       if ((new_order.GetDepotOrderType() & ODTFB_SERVICE) && (new_order.GetDepotActionType() & ODATFB_HALT)) return CMD_ERROR;
    00818       break;
    00819     }
    00820
    00821     case OT_GOTO_WAYPOINT: {
    00822       const Waypoint *wp = Waypoint::GetIfValid(new_order.GetDestination());
    00823       if (wp == NULL) return CMD_ERROR;
    00824
    00825       switch (v->type) {
    00826         default: return CMD_ERROR;
    00827
    00828         case VEH_TRAIN: {
    00829           if (!(wp->facilities & FACIL_TRAIN)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00830
    00831           CommandCost ret = CheckOwnership(wp->owner);
    00832           if (ret.Failed()) return ret;
    00833           break;
    00834         }
    00835
    00836         case VEH_SHIP:
    00837           if (!(wp->facilities & FACIL_DOCK)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
    00838           if (wp->owner != OWNER_NONE) {
    00839             CommandCost ret = CheckOwnership(wp->owner);
    00840             if (ret.Failed()) return ret;
    00841           }
    00842           break;
    00843       }
    00844
    00845       /* Order flags can be any of the following for waypoints:
    00846        * [non-stop]
    00847        * non-stop orders (if any) are only valid for trains */
    00848       if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN) return CMD_ERROR;
    00849       break;
    00850     }
    00851
    00852     case OT_CONDITIONAL: {
    00853       VehicleOrderID skip_to = new_order.GetConditionSkipToOrder();
    00854       if (skip_to != 0 && skip_to >= v->GetNumOrders()) return CMD_ERROR; // Always allow jumping to the first (even when there is no order).
    00855       if (new_order.GetConditionVariable() >= OCV_END) return CMD_ERROR;
    00856
    00857       OrderConditionComparator occ = new_order.GetConditionComparator();
    00858       if (occ >= OCC_END) return CMD_ERROR;
    00859       switch (new_order.GetConditionVariable()) {
    00860         case OCV_REQUIRES_SERVICE:
    00861           if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) return CMD_ERROR;
    00862           break;
    00863
    00864         case OCV_UNCONDITIONALLY:
    00865           if (occ != OCC_EQUALS) return CMD_ERROR;
    00866           if (new_order.GetConditionValue() != 0) return CMD_ERROR;
    00867           break;
    00868
    00869         case OCV_LOAD_PERCENTAGE:
    00870         case OCV_RELIABILITY:
    00871           if (new_order.GetConditionValue() > 100) return CMD_ERROR;
    00872           /* FALL THROUGH */
    00873         default:
    00874           if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) return CMD_ERROR;
    00875           break;
    00876       }
    00877       break;
    00878     }
    00879
    00880     default: return CMD_ERROR;
    00881   }
    00882
    00883   if (sel_ord > v->GetNumOrders()) return CMD_ERROR;
    00884
    00885   if (v->GetNumOrders() >= MAX_VEH_ORDER_ID) return_cmd_error(STR_ERROR_TOO_MANY_ORDERS);
    00886   if (!Order::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    00887   if (v->orders.list == NULL && !OrderList::CanAllocateItem()) return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    00888
    00889   if (v->type == VEH_SHIP && _settings_game.pf.pathfinder_for_ships != VPF_NPF) {
    00890     /* Make sure the new destination is not too far away from the previous */
    00891     const Order *prev = NULL;
    00892     uint n = 0;
    00893
    00894     /* Find the last goto station or depot order before the insert location.
    00895      * If the order is to be inserted at the beginning of the order list this
    00896      * finds the last order in the list. */
    00897     const Order *o;
    00898     FOR_VEHICLE_ORDERS(v, o) {
    00899       switch (o->GetType()) {
    00900         case OT_GOTO_STATION:
    00901         case OT_GOTO_DEPOT:
    00902         case OT_GOTO_WAYPOINT:
    00903           prev = o;
    00904           break;
    00905
    00906         default: break;
    00907       }
    00908       if (++n == sel_ord && prev != NULL) break;
    00909     }
    00910     if (prev != NULL) {
    00911       uint dist;
    00912       if (new_order.IsType(OT_CONDITIONAL)) {
    00913         /* The order is not yet inserted, so we have to do the first iteration here. */
    00914         dist = GetOrderDistance(prev, v->GetOrder(new_order.GetConditionSkipToOrder()), v);
    00915       } else {
    00916         dist = GetOrderDistance(prev, &new_order, v);
    00917       }
    00918
    00919       if (dist >= 130) {
    00920         return_cmd_error(STR_ERROR_TOO_FAR_FROM_PREVIOUS_DESTINATION);
    00921       }
    00922     }
    00923   }
    00924
    00925   if (flags & DC_EXEC) {
    00926     Order *new_o = new Order();
    00927     new_o->AssignOrder(new_order);
    00928     InsertOrder(v, new_o, sel_ord);
    00929   }
    00930
    00931   return CommandCost();
    00932 }
    00933
    00940 void InsertOrder(Vehicle *v, Order *new_o, VehicleOrderID sel_ord)
    00941 {
    00942   /* Create new order and link in list */
    00943   if (v->orders.list == NULL) {
    00944     v->orders.list = new OrderList(new_o, v);
    00945   } else {
    00946     v->orders.list->InsertOrderAt(new_o, sel_ord);
    00947   }
    00948
    00949   Vehicle *u = v->FirstShared();
    00950   DeleteOrderWarnings(u);
    00951   for (; u != NULL; u = u->NextShared()) {
    00952     assert(v->orders.list == u->orders.list);
    00953
    00954     /* If there is added an order before the current one, we need
    00955      * to update the selected order. We do not change implicit/real order indices though.
    00956      * If the new order is between the current implicit order and real order, the implicit order will
    00957      * later skip the inserted order. */
    00958     if (sel_ord <= u->cur_real_order_index) {
    00959       uint cur = u->cur_real_order_index + 1;
    00960       /* Check if we don't go out of bound */
    00961       if (cur < u->GetNumOrders()) {
    00962         u->cur_real_order_index = cur;
    00963       }
    00964     }
    00965     if (sel_ord == u->cur_implicit_order_index && u->IsGroundVehicle()) {
    00966       /* We are inserting an order just before the current implicit order.
    00967        * We do not know whether we will reach current implicit or the newly inserted order first.
    00968        * So, disable creation of implicit orders until we are on track again. */
    00969       uint16 &gv_flags = u->GetGroundVehicleFlags();
    00970       SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
    00971     }
    00972     if (sel_ord <= u->cur_implicit_order_index) {
    00973       uint cur = u->cur_implicit_order_index + 1;
    00974       /* Check if we don't go out of bound */
    00975       if (cur < u->GetNumOrders()) {
    00976         u->cur_implicit_order_index = cur;
    00977       }
    00978     }
    00979     /* Update any possible open window of the vehicle */
    00980     InvalidateVehicleOrder(u, INVALID_VEH_ORDER_ID | (sel_ord << 8));
    00981   }
    00982
    00983   /* As we insert an order, the order to skip to will be 'wrong'. */
    00984   VehicleOrderID cur_order_id = 0;
    00985   Order *order;
    00986   FOR_VEHICLE_ORDERS(v, order) {
    00987     if (order->IsType(OT_CONDITIONAL)) {
    00988       VehicleOrderID order_id = order->GetConditionSkipToOrder();
    00989       if (order_id >= sel_ord) {
    00990         order->SetConditionSkipToOrder(order_id + 1);
    00991       }
    00992       if (order_id == cur_order_id) {
    00993         order->SetConditionSkipToOrder((order_id + 1) % v->GetNumOrders());
    00994       }
    00995     }
    00996     cur_order_id++;
    00997   }
    00998
    00999   /* Make sure to rebuild the whole list */
    01000   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01001 }
    01002
    01008 static CommandCost DecloneOrder(Vehicle *dst, DoCommandFlag flags)
    01009 {
    01010   if (flags & DC_EXEC) {
    01011     DeleteVehicleOrders(dst);
    01012     InvalidateVehicleOrder(dst, VIWD_REMOVE_ALL_ORDERS);
    01013     InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01014   }
    01015   return CommandCost();
    01016 }
    01017
    01027 CommandCost CmdDeleteOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01028 {
    01029   VehicleID veh_id = GB(p1, 0, 20);
    01030   VehicleOrderID sel_ord = GB(p2, 0, 8);
    01031
    01032   Vehicle *v = Vehicle::GetIfValid(veh_id);
    01033
    01034   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01035
    01036   CommandCost ret = CheckOwnership(v->owner);
    01037   if (ret.Failed()) return ret;
    01038
    01039   /* If we did not select an order, we maybe want to de-clone the orders */
    01040   if (sel_ord >= v->GetNumOrders()) return DecloneOrder(v, flags);
    01041
    01042   if (v->GetOrder(sel_ord) == NULL) return CMD_ERROR;
    01043
    01044   if (flags & DC_EXEC) DeleteOrder(v, sel_ord);
    01045   return CommandCost();
    01046 }
    01047
    01052 static void CancelLoadingDueToDeletedOrder(Vehicle *v)
    01053 {
    01054   assert(v->current_order.IsType(OT_LOADING));
    01055   /* NON-stop flag is misused to see if a train is in a station that is
    01056    * on his order list or not */
    01057   v->current_order.SetNonStopType(ONSF_STOP_EVERYWHERE);
    01058   /* When full loading, "cancel" that order so the vehicle doesn't
    01059    * stay indefinitely at this station anymore. */
    01060   if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) v->current_order.SetLoadType(OLF_LOAD_IF_POSSIBLE);
    01061 }
    01062
    01068 void DeleteOrder(Vehicle *v, VehicleOrderID sel_ord)
    01069 {
    01070   v->orders.list->DeleteOrderAt(sel_ord);
    01071
    01072   Vehicle *u = v->FirstShared();
    01073   DeleteOrderWarnings(u);
    01074   for (; u != NULL; u = u->NextShared()) {
    01075     assert(v->orders.list == u->orders.list);
    01076
    01077     if (sel_ord == u->cur_real_order_index && u->current_order.IsType(OT_LOADING)) {
    01078       CancelLoadingDueToDeletedOrder(u);
    01079     }
    01080
    01081     if (sel_ord < u->cur_real_order_index) {
    01082       u->cur_real_order_index--;
    01083     } else if (sel_ord == u->cur_real_order_index) {
    01084       u->UpdateRealOrderIndex();
    01085     }
    01086
    01087     if (sel_ord < u->cur_implicit_order_index) {
    01088       u->cur_implicit_order_index--;
    01089     } else if (sel_ord == u->cur_implicit_order_index) {
    01090       /* Make sure the index is valid */
    01091       if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
    01092
    01093       /* Skip non-implicit orders for the implicit-order-index (e.g. if the current implicit order was deleted */
    01094       while (u->cur_implicit_order_index != u->cur_real_order_index && !u->GetOrder(u->cur_implicit_order_index)->IsType(OT_IMPLICIT)) {
    01095         u->cur_implicit_order_index++;
    01096         if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
    01097       }
    01098     }
    01099
    01100     /* Update any possible open window of the vehicle */
    01101     InvalidateVehicleOrder(u, sel_ord | (INVALID_VEH_ORDER_ID << 8));
    01102   }
    01103
    01104   /* As we delete an order, the order to skip to will be 'wrong'. */
    01105   VehicleOrderID cur_order_id = 0;
    01106   Order *order = NULL;
    01107   FOR_VEHICLE_ORDERS(v, order) {
    01108     if (order->IsType(OT_CONDITIONAL)) {
    01109       VehicleOrderID order_id = order->GetConditionSkipToOrder();
    01110       if (order_id >= sel_ord) {
    01111         order_id = max(order_id - 1, 0);
    01112       }
    01113       if (order_id == cur_order_id) {
    01114         order_id = (order_id + 1) % v->GetNumOrders();
    01115       }
    01116       order->SetConditionSkipToOrder(order_id);
    01117     }
    01118     cur_order_id++;
    01119   }
    01120
    01121   InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01122 }
    01123
    01133 CommandCost CmdSkipToOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01134 {
    01135   VehicleID veh_id = GB(p1, 0, 20);
    01136   VehicleOrderID sel_ord = GB(p2, 0, 8);
    01137
    01138   Vehicle *v = Vehicle::GetIfValid(veh_id);
    01139
    01140   if (v == NULL || !v->IsPrimaryVehicle() || sel_ord == v->cur_implicit_order_index || sel_ord >= v->GetNumOrders() || v->GetNumOrders() < 2) return CMD_ERROR;
    01141
    01142   CommandCost ret = CheckOwnership(v->owner);
    01143   if (ret.Failed()) return ret;
    01144
    01145   if (flags & DC_EXEC) {
    01146     if (v->current_order.IsType(OT_LOADING)) v->LeaveStation();
    01147
    01148     v->cur_implicit_order_index = v->cur_real_order_index = sel_ord;
    01149     v->UpdateRealOrderIndex();
    01150
    01151     InvalidateVehicleOrder(v, VIWD_MODIFY_ORDERS);
    01152   }
    01153
    01154   /* We have an aircraft/ship, they have a mini-schedule, so update them all */
    01155   if (v->type == VEH_AIRCRAFT) SetWindowClassesDirty(WC_AIRCRAFT_LIST);
    01156   if (v->type == VEH_SHIP) SetWindowClassesDirty(WC_SHIPS_LIST);
    01157
    01158   return CommandCost();
    01159 }
    01160
    01174 CommandCost CmdMoveOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01175 {
    01176   VehicleID veh = GB(p1, 0, 20);
    01177   VehicleOrderID moving_order = GB(p2,  0, 16);
    01178   VehicleOrderID target_order = GB(p2, 16, 16);
    01179
    01180   Vehicle *v = Vehicle::GetIfValid(veh);
    01181   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01182
    01183   CommandCost ret = CheckOwnership(v->owner);
    01184   if (ret.Failed()) return ret;
    01185
    01186   /* Don't make senseless movements */
    01187   if (moving_order >= v->GetNumOrders() || target_order >= v->GetNumOrders() ||
    01188       moving_order == target_order || v->GetNumOrders() <= 1) return CMD_ERROR;
    01189
    01190   Order *moving_one = v->GetOrder(moving_order);
    01191   /* Don't move an empty order */
    01192   if (moving_one == NULL) return CMD_ERROR;
    01193
    01194   if (flags & DC_EXEC) {
    01195     v->orders.list->MoveOrder(moving_order, target_order);
    01196
    01197     /* Update shared list */
    01198     Vehicle *u = v->FirstShared();
    01199
    01200     DeleteOrderWarnings(u);
    01201
    01202     for (; u != NULL; u = u->NextShared()) {
    01203       /* Update the current order.
    01204        * There are multiple ways to move orders, which result in cur_implicit_order_index
    01205        * and cur_real_order_index to not longer make any sense. E.g. moving another
    01206        * real order between them.
    01207        *
    01208        * Basically one could choose to preserve either of them, but not both.
    01209        * While both ways are suitable in this or that case from a human point of view, neither
    01210        * of them makes really sense.
    01211        * However, from an AI point of view, preserving cur_real_order_index is the most
    01212        * predictable and transparent behaviour.
    01213        *
    01214        * With that decision it basically does not matter what we do to cur_implicit_order_index.
    01215        * If we change orders between the implicit- and real-index, the implicit orders are mostly likely
    01216        * completely out-dated anyway. So, keep it simple and just keep cur_implicit_order_index as well.
    01217        * The worst which can happen is that a lot of implicit orders are removed when reaching current_order.
    01218        */
    01219       if (u->cur_real_order_index == moving_order) {
    01220         u->cur_real_order_index = target_order;
    01221       } else if (u->cur_real_order_index > moving_order && u->cur_real_order_index <= target_order) {
    01222         u->cur_real_order_index--;
    01223       } else if (u->cur_real_order_index < moving_order && u->cur_real_order_index >= target_order) {
    01224         u->cur_real_order_index++;
    01225       }
    01226
    01227       if (u->cur_implicit_order_index == moving_order) {
    01228         u->cur_implicit_order_index = target_order;
    01229       } else if (u->cur_implicit_order_index > moving_order && u->cur_implicit_order_index <= target_order) {
    01230         u->cur_implicit_order_index--;
    01231       } else if (u->cur_implicit_order_index < moving_order && u->cur_implicit_order_index >= target_order) {
    01232         u->cur_implicit_order_index++;
    01233       }
    01234
    01235       assert(v->orders.list == u->orders.list);
    01236       /* Update any possible open window of the vehicle */
    01237       InvalidateVehicleOrder(u, moving_order | (target_order << 8));
    01238     }
    01239
    01240     /* As we move an order, the order to skip to will be 'wrong'. */
    01241     Order *order;
    01242     FOR_VEHICLE_ORDERS(v, order) {
    01243       if (order->IsType(OT_CONDITIONAL)) {
    01244         VehicleOrderID order_id = order->GetConditionSkipToOrder();
    01245         if (order_id == moving_order) {
    01246           order_id = target_order;
    01247         } else if (order_id > moving_order && order_id <= target_order) {
    01248           order_id--;
    01249         } else if (order_id < moving_order && order_id >= target_order) {
    01250           order_id++;
    01251         }
    01252         order->SetConditionSkipToOrder(order_id);
    01253       }
    01254     }
    01255
    01256     /* Make sure to rebuild the whole list */
    01257     InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
    01258   }
    01259
    01260   return CommandCost();
    01261 }
    01262
    01278 CommandCost CmdModifyOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01279 {
    01280   VehicleOrderID sel_ord = GB(p1, 20,  8);
    01281   VehicleID veh          = GB(p1,  0, 20);
    01282   ModifyOrderFlags mof   = Extract<ModifyOrderFlags, 0, 4>(p2);
    01283   uint16 data            = GB(p2,  4, 11);
    01284
    01285   if (mof >= MOF_END) return CMD_ERROR;
    01286
    01287   Vehicle *v = Vehicle::GetIfValid(veh);
    01288   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01289
    01290   CommandCost ret = CheckOwnership(v->owner);
    01291   if (ret.Failed()) return ret;
    01292
    01293   /* Is it a valid order? */
    01294   if (sel_ord >= v->GetNumOrders()) return CMD_ERROR;
    01295
    01296   Order *order = v->GetOrder(sel_ord);
    01297   switch (order->GetType()) {
    01298     case OT_GOTO_STATION:
    01299       if (mof != MOF_NON_STOP && mof != MOF_STOP_LOCATION && mof != MOF_UNLOAD && mof != MOF_LOAD) return CMD_ERROR;
    01300       break;
    01301
    01302     case OT_GOTO_DEPOT:
    01303       if (mof != MOF_NON_STOP && mof != MOF_DEPOT_ACTION) return CMD_ERROR;
    01304       break;
    01305
    01306     case OT_GOTO_WAYPOINT:
    01307       if (mof != MOF_NON_STOP) return CMD_ERROR;
    01308       break;
    01309
    01310     case OT_CONDITIONAL:
    01311       if (mof != MOF_COND_VARIABLE && mof != MOF_COND_COMPARATOR && mof != MOF_COND_VALUE && mof != MOF_COND_DESTINATION) return CMD_ERROR;
    01312       break;
    01313
    01314     default:
    01315       return CMD_ERROR;
    01316   }
    01317
    01318   switch (mof) {
    01319     default: NOT_REACHED();
    01320
    01321     case MOF_NON_STOP:
    01322       if (!v->IsGroundVehicle()) return CMD_ERROR;
    01323       if (data >= ONSF_END) return CMD_ERROR;
    01324       if (data == order->GetNonStopType()) return CMD_ERROR;
    01325       break;
    01326
    01327     case MOF_STOP_LOCATION:
    01328       if (v->type != VEH_TRAIN) return CMD_ERROR;
    01329       if (data >= OSL_END) return CMD_ERROR;
    01330       break;
    01331
    01332     case MOF_UNLOAD:
    01333       if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return CMD_ERROR;
    01334       if ((data & ~(OUFB_UNLOAD | OUFB_TRANSFER | OUFB_NO_UNLOAD)) != 0) return CMD_ERROR;
    01335       /* Unload and no-unload are mutual exclusive and so are transfer and no unload. */
    01336       if (data != 0 && ((data & (OUFB_UNLOAD | OUFB_TRANSFER)) != 0) == ((data & OUFB_NO_UNLOAD) != 0)) return CMD_ERROR;
    01337       if (data == order->GetUnloadType()) return CMD_ERROR;
    01338       break;
    01339
    01340     case MOF_LOAD:
    01341       if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return CMD_ERROR;
    01342       if (data > OLFB_NO_LOAD || data == 1) return CMD_ERROR;
    01343       if (data == order->GetLoadType()) return CMD_ERROR;
    01344       break;
    01345
    01346     case MOF_DEPOT_ACTION:
    01347       if (data >= DA_END) return CMD_ERROR;
    01348       break;
    01349
    01350     case MOF_COND_VARIABLE:
    01351       if (data >= OCV_END) return CMD_ERROR;
    01352       break;
    01353
    01354     case MOF_COND_COMPARATOR:
    01355       if (data >= OCC_END) return CMD_ERROR;
    01356       switch (order->GetConditionVariable()) {
    01357         case OCV_UNCONDITIONALLY: return CMD_ERROR;
    01358
    01359         case OCV_REQUIRES_SERVICE:
    01360           if (data != OCC_IS_TRUE && data != OCC_IS_FALSE) return CMD_ERROR;
    01361           break;
    01362
    01363         default:
    01364           if (data == OCC_IS_TRUE || data == OCC_IS_FALSE) return CMD_ERROR;
    01365           break;
    01366       }
    01367       break;
    01368
    01369     case MOF_COND_VALUE:
    01370       switch (order->GetConditionVariable()) {
    01371         case OCV_UNCONDITIONALLY:
    01372         case OCV_REQUIRES_SERVICE:
    01373           return CMD_ERROR;
    01374
    01375         case OCV_LOAD_PERCENTAGE:
    01376         case OCV_RELIABILITY:
    01377           if (data > 100) return CMD_ERROR;
    01378           break;
    01379
    01380         default:
    01381           if (data > 2047) return CMD_ERROR;
    01382           break;
    01383       }
    01384       break;
    01385
    01386     case MOF_COND_DESTINATION:
    01387       if (data >= v->GetNumOrders()) return CMD_ERROR;
    01388       break;
    01389   }
    01390
    01391   if (flags & DC_EXEC) {
    01392     switch (mof) {
    01393       case MOF_NON_STOP:
    01394         order->SetNonStopType((OrderNonStopFlags)data);
    01395         if (data & ONSF_NO_STOP_AT_DESTINATION_STATION) {
    01396           order->SetRefit(CT_NO_REFIT);
    01397           order->SetLoadType(OLF_LOAD_IF_POSSIBLE);
    01398           order->SetUnloadType(OUF_UNLOAD_IF_POSSIBLE);
    01399         }
    01400         break;
    01401
    01402       case MOF_STOP_LOCATION:
    01403         order->SetStopLocation((OrderStopLocation)data);
    01404         break;
    01405
    01406       case MOF_UNLOAD:
    01407         order->SetUnloadType((OrderUnloadFlags)data);
    01408         break;
    01409
    01410       case MOF_LOAD:
    01411         order->SetLoadType((OrderLoadFlags)data);
    01412         if (data & OLFB_NO_LOAD) order->SetRefit(CT_NO_REFIT);
    01413         break;
    01414
    01415       case MOF_DEPOT_ACTION: {
    01416         switch (data) {
    01417           case DA_ALWAYS_GO:
    01418             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01419             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01420             break;
    01421
    01422           case DA_SERVICE:
    01423             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() | ODTFB_SERVICE));
    01424             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01425             order->SetRefit(CT_NO_REFIT);
    01426             break;
    01427
    01428           case DA_STOP:
    01429             order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01430             order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() | ODATFB_HALT));
    01431             order->SetRefit(CT_NO_REFIT);
    01432             break;
    01433
    01434           default:
    01435             NOT_REACHED();
    01436         }
    01437         break;
    01438       }
    01439
    01440       case MOF_COND_VARIABLE: {
    01441         order->SetConditionVariable((OrderConditionVariable)data);
    01442
    01443         OrderConditionComparator occ = order->GetConditionComparator();
    01444         switch (order->GetConditionVariable()) {
    01445           case OCV_UNCONDITIONALLY:
    01446             order->SetConditionComparator(OCC_EQUALS);
    01447             order->SetConditionValue(0);
    01448             break;
    01449
    01450           case OCV_REQUIRES_SERVICE:
    01451             if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) order->SetConditionComparator(OCC_IS_TRUE);
    01452             order->SetConditionValue(0);
    01453             break;
    01454
    01455           case OCV_LOAD_PERCENTAGE:
    01456           case OCV_RELIABILITY:
    01457             if (order->GetConditionValue() > 100) order->SetConditionValue(100);
    01458             /* FALL THROUGH */
    01459           default:
    01460             if (occ == OCC_IS_TRUE || occ == OCC_IS_FALSE) order->SetConditionComparator(OCC_EQUALS);
    01461             break;
    01462         }
    01463         break;
    01464       }
    01465
    01466       case MOF_COND_COMPARATOR:
    01467         order->SetConditionComparator((OrderConditionComparator)data);
    01468         break;
    01469
    01470       case MOF_COND_VALUE:
    01471         order->SetConditionValue(data);
    01472         break;
    01473
    01474       case MOF_COND_DESTINATION:
    01475         order->SetConditionSkipToOrder(data);
    01476         break;
    01477
    01478       default: NOT_REACHED();
    01479     }
    01480
    01481     /* Update the windows and full load flags, also for vehicles that share the same order list */
    01482     Vehicle *u = v->FirstShared();
    01483     DeleteOrderWarnings(u);
    01484     for (; u != NULL; u = u->NextShared()) {
    01485       /* Toggle u->current_order "Full load" flag if it changed.
    01486        * However, as the same flag is used for depot orders, check
    01487        * whether we are not going to a depot as there are three
    01488        * cases where the full load flag can be active and only
    01489        * one case where the flag is used for depot orders. In the
    01490        * other cases for the OrderTypeByte the flags are not used,
    01491        * so do not care and those orders should not be active
    01492        * when this function is called.
    01493        */
    01494       if (sel_ord == u->cur_real_order_index &&
    01495           (u->current_order.IsType(OT_GOTO_STATION) || u->current_order.IsType(OT_LOADING)) &&
    01496           u->current_order.GetLoadType() != order->GetLoadType()) {
    01497         u->current_order.SetLoadType(order->GetLoadType());
    01498       }
    01499       InvalidateVehicleOrder(u, VIWD_MODIFY_ORDERS);
    01500     }
    01501   }
    01502
    01503   return CommandCost();
    01504 }
    01505
    01513 static bool CheckAircraftOrderDistance(const Aircraft *v_new, const Vehicle *v_order, const Order *first)
    01514 {
    01515   if (first == NULL || v_new->acache.cached_max_range == 0) return true;
    01516
    01517   /* Iterate over all orders to check the distance between all
    01518    * 'goto' orders and their respective next order (of any type). */
    01519   for (const Order *o = first; o != NULL; o = o->next) {
    01520     switch (o->GetType()) {
    01521       case OT_GOTO_STATION:
    01522       case OT_GOTO_DEPOT:
    01523       case OT_GOTO_WAYPOINT:
    01524         /* If we don't have a next order, we've reached the end and must check the first order instead. */
    01525         if (GetOrderDistance(o, o->next != NULL ? o->next : first, v_order) > v_new->acache.cached_max_range_sqr) return false;
    01526         break;
    01527
    01528       default: break;
    01529     }
    01530   }
    01531
    01532   return true;
    01533 }
    01534
    01546 CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01547 {
    01548   VehicleID veh_src = GB(p2, 0, 20);
    01549   VehicleID veh_dst = GB(p1, 0, 20);
    01550
    01551   Vehicle *dst = Vehicle::GetIfValid(veh_dst);
    01552   if (dst == NULL || !dst->IsPrimaryVehicle()) return CMD_ERROR;
    01553
    01554   CommandCost ret = CheckOwnership(dst->owner);
    01555   if (ret.Failed()) return ret;
    01556
    01557   switch (GB(p1, 30, 2)) {
    01558     case CO_SHARE: {
    01559       Vehicle *src = Vehicle::GetIfValid(veh_src);
    01560
    01561       /* Sanity checks */
    01562       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
    01563
    01564       CommandCost ret = CheckOwnership(src->owner);
    01565       if (ret.Failed()) return ret;
    01566
    01567       /* Trucks can't share orders with busses (and visa versa) */
    01568       if (src->type == VEH_ROAD && RoadVehicle::From(src)->IsBus() != RoadVehicle::From(dst)->IsBus()) {
    01569         return CMD_ERROR;
    01570       }
    01571
    01572       /* Is the vehicle already in the shared list? */
    01573       if (src->FirstShared() == dst->FirstShared()) return CMD_ERROR;
    01574
    01575       const Order *order;
    01576
    01577       FOR_VEHICLE_ORDERS(src, order) {
    01578         if (!OrderGoesToStation(dst, order)) continue;
    01579
    01580         /* Allow copying unreachable destinations if they were already unreachable for the source.
    01581          * This is basically to allow cloning / autorenewing / autoreplacing vehicles, while the stations
    01582          * are temporarily invalid due to reconstruction. */
    01583         const Station *st = Station::Get(order->GetDestination());
    01584         if (CanVehicleUseStation(src, st) && !CanVehicleUseStation(dst, st)) {
    01585           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
    01586         }
    01587       }
    01588
    01589       /* Check for aircraft range limits. */
    01590       if (dst->type == VEH_AIRCRAFT && !CheckAircraftOrderDistance(Aircraft::From(dst), src, src->GetFirstOrder())) {
    01591         return_cmd_error(STR_ERROR_AIRCRAFT_NOT_ENOUGH_RANGE);
    01592       }
    01593
    01594       if (src->orders.list == NULL && !OrderList::CanAllocateItem()) {
    01595         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    01596       }
    01597
    01598       if (flags & DC_EXEC) {
    01599         /* If the destination vehicle had a OrderList, destroy it.
    01600          * We only reset the order indices, if the new orders are obviously different.
    01601          * (We mainly do this to keep the order indices valid and in range.) */
    01602         DeleteVehicleOrders(dst, false, dst->GetNumOrders() != src->GetNumOrders());
    01603
    01604         dst->orders.list = src->orders.list;
    01605
    01606         /* Link this vehicle in the shared-list */
    01607         dst->AddToShared(src);
    01608
    01609         InvalidateVehicleOrder(dst, VIWD_REMOVE_ALL_ORDERS);
    01610         InvalidateVehicleOrder(src, VIWD_MODIFY_ORDERS);
    01611
    01612         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01613       }
    01614       break;
    01615     }
    01616
    01617     case CO_COPY: {
    01618       Vehicle *src = Vehicle::GetIfValid(veh_src);
    01619
    01620       /* Sanity checks */
    01621       if (src == NULL || !src->IsPrimaryVehicle() || dst->type != src->type || dst == src) return CMD_ERROR;
    01622
    01623       CommandCost ret = CheckOwnership(src->owner);
    01624       if (ret.Failed()) return ret;
    01625
    01626       /* Trucks can't copy all the orders from busses (and visa versa),
    01627        * and neither can helicopters and aircraft. */
    01628       const Order *order;
    01629       FOR_VEHICLE_ORDERS(src, order) {
    01630         if (OrderGoesToStation(dst, order) &&
    01631             !CanVehicleUseStation(dst, Station::Get(order->GetDestination()))) {
    01632           return_cmd_error(STR_ERROR_CAN_T_COPY_SHARE_ORDER);
    01633         }
    01634       }
    01635
    01636       /* Check for aircraft range limits. */
    01637       if (dst->type == VEH_AIRCRAFT && !CheckAircraftOrderDistance(Aircraft::From(dst), src, src->GetFirstOrder())) {
    01638         return_cmd_error(STR_ERROR_AIRCRAFT_NOT_ENOUGH_RANGE);
    01639       }
    01640
    01641       /* make sure there are orders available */
    01642       if (!Order::CanAllocateItem(src->GetNumOrders()) || !OrderList::CanAllocateItem()) {
    01643         return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
    01644       }
    01645
    01646       if (flags & DC_EXEC) {
    01647         const Order *order;
    01648         Order *first = NULL;
    01649         Order **order_dst;
    01650
    01651         /* If the destination vehicle had an order list, destroy the chain but keep the OrderList.
    01652          * We only reset the order indices, if the new orders are obviously different.
    01653          * (We mainly do this to keep the order indices valid and in range.) */
    01654         DeleteVehicleOrders(dst, true, dst->GetNumOrders() != src->GetNumOrders());
    01655
    01656         order_dst = &first;
    01657         FOR_VEHICLE_ORDERS(src, order) {
    01658           *order_dst = new Order();
    01659           (*order_dst)->AssignOrder(*order);
    01660           order_dst = &(*order_dst)->next;
    01661         }
    01662         if (dst->orders.list == NULL) {
    01663           dst->orders.list = new OrderList(first, dst);
    01664         } else {
    01665           assert(dst->orders.list->GetFirstOrder() == NULL);
    01666           assert(!dst->orders.list->IsShared());
    01667           delete dst->orders.list;
    01668           assert(OrderList::CanAllocateItem());
    01669           dst->orders.list = new OrderList(first, dst);
    01670         }
    01671
    01672         InvalidateVehicleOrder(dst, VIWD_REMOVE_ALL_ORDERS);
    01673
    01674         InvalidateWindowClassesData(GetWindowClassForVehicleType(dst->type), 0);
    01675       }
    01676       break;
    01677     }
    01678
    01679     case CO_UNSHARE: return DecloneOrder(dst, flags);
    01680     default: return CMD_ERROR;
    01681   }
    01682
    01683   return CommandCost();
    01684 }
    01685
    01697 CommandCost CmdOrderRefit(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    01698 {
    01699   VehicleID veh = GB(p1, 0, 20);
    01700   VehicleOrderID order_number  = GB(p2, 16, 8);
    01701   CargoID cargo = GB(p2, 0, 8);
    01702
    01703   if (cargo >= NUM_CARGO && cargo != CT_NO_REFIT && cargo != CT_AUTO_REFIT) return CMD_ERROR;
    01704
    01705   const Vehicle *v = Vehicle::GetIfValid(veh);
    01706   if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
    01707
    01708   CommandCost ret = CheckOwnership(v->owner);
    01709   if (ret.Failed()) return ret;
    01710
    01711   Order *order = v->GetOrder(order_number);
    01712   if (order == NULL) return CMD_ERROR;
    01713
    01714   /* Automatic refit cargo is only supported for goto station orders. */
    01715   if (cargo == CT_AUTO_REFIT && !order->IsType(OT_GOTO_STATION)) return CMD_ERROR;
    01716
    01717   if (order->GetLoadType() & OLFB_NO_LOAD) return CMD_ERROR;
    01718
    01719   if (flags & DC_EXEC) {
    01720     order->SetRefit(cargo);
    01721
    01722     /* Make the depot order an 'always go' order. */
    01723     if (cargo != CT_NO_REFIT && order->IsType(OT_GOTO_DEPOT)) {
    01724       order->SetDepotOrderType((OrderDepotTypeFlags)(order->GetDepotOrderType() & ~ODTFB_SERVICE));
    01725       order->SetDepotActionType((OrderDepotActionFlags)(order->GetDepotActionType() & ~ODATFB_HALT));
    01726     }
    01727
    01728     for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
    01729       /* Update any possible open window of the vehicle */
    01730       InvalidateVehicleOrder(u, VIWD_MODIFY_ORDERS);
    01731
    01732       /* If the vehicle already got the current depot set as current order, then update current order as well */
    01733       if (u->cur_real_order_index == order_number && (u->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) {
    01734         u->current_order.SetRefit(cargo);
    01735       }
    01736     }
    01737   }
    01738
    01739   return CommandCost();
    01740 }
    01741
    01742
    01748 void CheckOrders(const Vehicle *v)
    01749 {
    01750   /* Does the user wants us to check things? */
    01751   if (_settings_client.gui.order_review_system == 0) return;
    01752
    01753   /* Do nothing for crashed vehicles */
    01754   if (v->vehstatus & VS_CRASHED) return;
    01755
    01756   /* Do nothing for stopped vehicles if setting is '1' */
    01757   if (_settings_client.gui.order_review_system == 1 && (v->vehstatus & VS_STOPPED)) return;
    01758
    01759   /* do nothing we we're not the first vehicle in a share-chain */
    01760   if (v->FirstShared() != v) return;
    01761
    01762   /* Only check every 20 days, so that we don't flood the message log */
    01763   if (v->owner == _local_company && v->day_counter % 20 == 0) {
    01764     int n_st, problem_type = -1;
    01765     const Order *order;
    01766     int message = 0;
    01767
    01768     /* Check the order list */
    01769     n_st = 0;
    01770
    01771     FOR_VEHICLE_ORDERS(v, order) {
    01772       /* Dummy order? */
    01773       if (order->IsType(OT_DUMMY)) {
    01774         problem_type = 1;
    01775         break;
    01776       }
    01777       /* Does station have a load-bay for this vehicle? */
    01778       if (order->IsType(OT_GOTO_STATION)) {
    01779         const Station *st = Station::Get(order->GetDestination());
    01780
    01781         n_st++;
    01782         if (!CanVehicleUseStation(v, st)) problem_type = 3;
    01783       }
    01784     }
    01785
    01786     /* Check if the last and the first order are the same */
    01787     if (v->GetNumOrders() > 1) {
    01788       const Order *last = v->GetLastOrder();
    01789
    01790       if (v->orders.list->GetFirstOrder()->Equals(*last)) {
    01791         problem_type = 2;
    01792       }
    01793     }
    01794
    01795     /* Do we only have 1 station in our order list? */
    01796     if (n_st < 2 && problem_type == -1) problem_type = 0;
    01797
    01798 #ifndef NDEBUG
    01799     if (v->orders.list != NULL) v->orders.list->DebugCheckSanity();
    01800 #endif
    01801
    01802     /* We don't have a problem */
    01803     if (problem_type < 0) return;
    01804
    01805     message = STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS + problem_type;
    01806     //DEBUG(misc, 3, "Triggered News Item for vehicle %d", v->index);
    01807
    01808     SetDParam(0, v->index);
    01809     AddVehicleAdviceNewsItem(message, v->index);
    01810   }
    01811 }
    01812
    01818 void RemoveOrderFromAllVehicles(OrderType type, DestinationID destination)
    01819 {
    01820   Vehicle *v;
    01821
    01822   /* Aircraft have StationIDs for depot orders and never use DepotIDs
    01823    * This fact is handled specially below
    01824    */
    01825
    01826   /* Go through all vehicles */
    01827   FOR_ALL_VEHICLES(v) {
    01828     Order *order;
    01829
    01830     order = &v->current_order;
    01831     if ((v->type == VEH_AIRCRAFT && order->IsType(OT_GOTO_DEPOT) ? OT_GOTO_STATION : order->GetType()) == type &&
    01832         v->current_order.GetDestination() == destination) {
    01833       order->MakeDummy();
    01834       SetWindowDirty(WC_VEHICLE_VIEW, v->index);
    01835     }
    01836
    01837     /* Clear the order from the order-list */
    01838     int id = -1;
    01839     FOR_VEHICLE_ORDERS(v, order) {
    01840       id++;
    01841 restart:
    01842
    01843       OrderType ot = order->GetType();
    01844       if (ot == OT_GOTO_DEPOT && (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) continue;
    01845       if (ot == OT_IMPLICIT || (v->type == VEH_AIRCRAFT && ot == OT_GOTO_DEPOT)) ot = OT_GOTO_STATION;
    01846       if (ot == type && order->GetDestination() == destination) {
    01847         /* We want to clear implicit orders, but we don't want to make them
    01848          * dummy orders. They should just vanish. Also check the actual order
    01849          * type as ot is currently OT_GOTO_STATION. */
    01850         if (order->IsType(OT_IMPLICIT)) {
    01851           order = order->next; // DeleteOrder() invalidates current order
    01852           DeleteOrder(v, id);
    01853           if (order != NULL) goto restart;
    01854           break;
    01855         }
    01856
    01857         order->MakeDummy();
    01858         for (const Vehicle *w = v->FirstShared(); w != NULL; w = w->NextShared()) {
    01859           /* In GUI, simulate by removing the order and adding it back */
    01860           InvalidateVehicleOrder(w, id | (INVALID_VEH_ORDER_ID << 8));
    01861           InvalidateVehicleOrder(w, (INVALID_VEH_ORDER_ID << 8) | id);
    01862         }
    01863       }
    01864     }
    01865   }
    01866
    01867   OrderBackup::RemoveOrder(type, destination);
    01868 }
    01869
    01874 bool Vehicle::HasDepotOrder() const
    01875 {
    01876   const Order *order;
    01877
    01878   FOR_VEHICLE_ORDERS(this, order) {
    01879     if (order->IsType(OT_GOTO_DEPOT)) return true;
    01880   }
    01881
    01882   return false;
    01883 }
    01884
    01894 void DeleteVehicleOrders(Vehicle *v, bool keep_orderlist, bool reset_order_indices)
    01895 {
    01896   DeleteOrderWarnings(v);
    01897
    01898   if (v->IsOrderListShared()) {
    01899     /* Remove ourself from the shared order list. */
    01900     v->RemoveFromShared();
    01901     v->orders.list = NULL;
    01902   } else if (v->orders.list != NULL) {
    01903     /* Remove the orders */
    01904     v->orders.list->FreeChain(keep_orderlist);
    01905     if (!keep_orderlist) v->orders.list = NULL;
    01906   }
    01907
    01908   if (reset_order_indices) {
    01909     v->cur_implicit_order_index = v->cur_real_order_index = 0;
    01910     if (v->current_order.IsType(OT_LOADING)) {
    01911       CancelLoadingDueToDeletedOrder(v);
    01912     }
    01913   }
    01914 }
    01915
    01923 uint16 GetServiceIntervalClamped(uint interval, bool ispercent)
    01924 {
    01925   return ispercent ? Clamp(interval, MIN_SERVINT_PERCENT, MAX_SERVINT_PERCENT) : Clamp(interval, MIN_SERVINT_DAYS, MAX_SERVINT_DAYS);
    01926 }
    01927
    01936 static bool CheckForValidOrders(const Vehicle *v)
    01937 {
    01938   const Order *order;
    01939
    01940   FOR_VEHICLE_ORDERS(v, order) {
    01941     switch (order->GetType()) {
    01942       case OT_GOTO_STATION:
    01943       case OT_GOTO_DEPOT:
    01944       case OT_GOTO_WAYPOINT:
    01945         return true;
    01946
    01947       default:
    01948         break;
    01949     }
    01950   }
    01951
    01952   return false;
    01953 }
    01954
    01958 static bool OrderConditionCompare(OrderConditionComparator occ, int variable, int value)
    01959 {
    01960   switch (occ) {
    01961     case OCC_EQUALS:      return variable == value;
    01962     case OCC_NOT_EQUALS:  return variable != value;
    01963     case OCC_LESS_THAN:   return variable <  value;
    01964     case OCC_LESS_EQUALS: return variable <= value;
    01965     case OCC_MORE_THAN:   return variable >  value;
    01966     case OCC_MORE_EQUALS: return variable >= value;
    01967     case OCC_IS_TRUE:     return variable != 0;
    01968     case OCC_IS_FALSE:    return variable == 0;
    01969     default: NOT_REACHED();
    01970   }
    01971 }
    01972
    01979 VehicleOrderID ProcessConditionalOrder(const Order *order, const Vehicle *v)
    01980 {
    01981   if (order->GetType() != OT_CONDITIONAL) return INVALID_VEH_ORDER_ID;
    01982
    01983   bool skip_order = false;
    01984   OrderConditionComparator occ = order->GetConditionComparator();
    01985   uint16 value = order->GetConditionValue();
    01986
    01987   switch (order->GetConditionVariable()) {
    01988     case OCV_LOAD_PERCENTAGE:    skip_order = OrderConditionCompare(occ, CalcPercentVehicleFilled(v, NULL), value); break;
    01989     case OCV_RELIABILITY:        skip_order = OrderConditionCompare(occ, ToPercent16(v->reliability),       value); break;
    01990     case OCV_MAX_SPEED:          skip_order = OrderConditionCompare(occ, v->GetDisplayMaxSpeed() * 10 / 16, value); break;
    01991     case OCV_AGE:                skip_order = OrderConditionCompare(occ, v->age / DAYS_IN_LEAP_YEAR,        value); break;
    01992     case OCV_REQUIRES_SERVICE:   skip_order = OrderConditionCompare(occ, v->NeedsServicing(),               value); break;
    01993     case OCV_UNCONDITIONALLY:    skip_order = true; break;
    01994     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;
    01995     default: NOT_REACHED();
    01996   }
    01997
    01998   return skip_order ? order->GetConditionSkipToOrder() : (VehicleOrderID)INVALID_VEH_ORDER_ID;
    01999 }
    02000
    02008 bool UpdateOrderDest(Vehicle *v, const Order *order, int conditional_depth, bool pbs_look_ahead)
    02009 {
    02010   if (conditional_depth > v->GetNumOrders()) {
    02011     v->current_order.Free();
    02012     v->dest_tile = 0;
    02013     return false;
    02014   }
    02015
    02016   switch (order->GetType()) {
    02017     case OT_GOTO_STATION:
    02018       v->dest_tile = v->GetOrderStationLocation(order->GetDestination());
    02019       return true;
    02020
    02021     case OT_GOTO_DEPOT:
    02022       if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !v->NeedsServicing()) {
    02023         assert(!pbs_look_ahead);
    02024         UpdateVehicleTimetable(v, true);
    02025         v->IncrementRealOrderIndex();
    02026         break;
    02027       }
    02028
    02029       if (v->current_order.GetDepotActionType() & ODATFB_NEAREST_DEPOT) {
    02030         /* We need to search for the nearest depot (hangar). */
    02031         TileIndex location;
    02032         DestinationID destination;
    02033         bool reverse;
    02034
    02035         if (v->FindClosestDepot(&location, &destination, &reverse)) {
    02036           /* PBS reservations cannot reverse */
    02037           if (pbs_look_ahead && reverse) return false;
    02038
    02039           v->dest_tile = location;
    02040           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());
    02041
    02042           /* If there is no depot in front, reverse automatically (trains only) */
    02043           if (v->type == VEH_TRAIN && reverse) DoCommand(v->tile, v->index, 0, DC_EXEC, CMD_REVERSE_TRAIN_DIRECTION);
    02044
    02045           if (v->type == VEH_AIRCRAFT) {
    02046             Aircraft *a = Aircraft::From(v);
    02047             if (a->state == FLYING && a->targetairport != destination) {
    02048               /* The aircraft is now heading for a different hangar than the next in the orders */
    02049               extern void AircraftNextAirportPos_and_Order(Aircraft *a);
    02050               AircraftNextAirportPos_and_Order(a);
    02051             }
    02052           }
    02053           return true;
    02054         }
    02055
    02056         /* If there is no depot, we cannot help PBS either. */
    02057         if (pbs_look_ahead) return false;
    02058
    02059         UpdateVehicleTimetable(v, true);
    02060         v->IncrementRealOrderIndex();
    02061       } else {
    02062         if (v->type != VEH_AIRCRAFT) {
    02063           v->dest_tile = Depot::Get(order->GetDestination())->xy;
    02064         }
    02065         return true;
    02066       }
    02067       break;
    02068
    02069     case OT_GOTO_WAYPOINT:
    02070       v->dest_tile = Waypoint::Get(order->GetDestination())->xy;
    02071       return true;
    02072
    02073     case OT_CONDITIONAL: {
    02074       assert(!pbs_look_ahead);
    02075       VehicleOrderID next_order = ProcessConditionalOrder(order, v);
    02076       if (next_order != INVALID_VEH_ORDER_ID) {
    02077         /* Jump to next_order. cur_implicit_order_index becomes exactly that order,
    02078          * cur_real_order_index might come after next_order. */
    02079         UpdateVehicleTimetable(v, false);
    02080         v->cur_implicit_order_index = v->cur_real_order_index = next_order;
    02081         v->UpdateRealOrderIndex();
    02082         v->current_order_time += v->GetOrder(v->cur_real_order_index)->travel_time;
    02083
    02084         /* Disable creation of implicit orders.
    02085          * When inserting them we do not know that we would have to make the conditional orders point to them. */
    02086         if (v->IsGroundVehicle()) {
    02087           uint16 &gv_flags = v->GetGroundVehicleFlags();
    02088           SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
    02089         }
    02090       } else {
    02091         UpdateVehicleTimetable(v, true);
    02092         v->IncrementRealOrderIndex();
    02093       }
    02094       break;
    02095     }
    02096
    02097     default:
    02098       v->dest_tile = 0;
    02099       return false;
    02100   }
    02101
    02102   assert(v->cur_implicit_order_index < v->GetNumOrders());
    02103   assert(v->cur_real_order_index < v->GetNumOrders());
    02104
    02105   /* Get the current order */
    02106   order = v->GetOrder(v->cur_real_order_index);
    02107   if (order != NULL && order->IsType(OT_IMPLICIT)) {
    02108     assert(v->GetNumManualOrders() == 0);
    02109     order = NULL;
    02110   }
    02111
    02112   if (order == NULL) {
    02113     v->current_order.Free();
    02114     v->dest_tile = 0;
    02115     return false;
    02116   }
    02117
    02118   v->current_order = *order;
    02119   return UpdateOrderDest(v, order, conditional_depth + 1, pbs_look_ahead);
    02120 }
    02121
    02129 bool ProcessOrders(Vehicle *v)
    02130 {
    02131   switch (v->current_order.GetType()) {
    02132     case OT_GOTO_DEPOT:
    02133       /* Let a depot order in the orderlist interrupt. */
    02134       if (!(v->current_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS)) return false;
    02135       break;
    02136
    02137     case OT_LOADING:
    02138       return false;
    02139
    02140     case OT_LEAVESTATION:
    02141       if (v->type != VEH_AIRCRAFT) return false;
    02142       break;
    02143
    02144     default: break;
    02145   }
    02146
    02154   bool may_reverse = v->current_order.IsType(OT_NOTHING);
    02155
    02156   /* Check if we've reached a 'via' destination. */
    02157   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)) &&
    02158       IsTileType(v->tile, MP_STATION) &&
    02159       v->current_order.GetDestination() == GetStationIndex(v->tile)) {
    02160     v->DeleteUnreachedImplicitOrders();
    02161     /* We set the last visited station here because we do not want
    02162      * the train to stop at this 'via' station if the next order
    02163      * is a no-non-stop order; in that case not setting the last
    02164      * visited station will cause the vehicle to still stop. */
    02165     v->last_station_visited = v->current_order.GetDestination();
    02166     UpdateVehicleTimetable(v, true);
    02167     v->IncrementImplicitOrderIndex();
    02168   }
    02169
    02170   /* Get the current order */
    02171   assert(v->cur_implicit_order_index == 0 || v->cur_implicit_order_index < v->GetNumOrders());
    02172   v->UpdateRealOrderIndex();
    02173
    02174   const Order *order = v->GetOrder(v->cur_real_order_index);
    02175   if (order != NULL && order->IsType(OT_IMPLICIT)) {
    02176     assert(v->GetNumManualOrders() == 0);
    02177     order = NULL;
    02178   }
    02179
    02180   /* If no order, do nothing. */
    02181   if (order == NULL || (v->type == VEH_AIRCRAFT && !CheckForValidOrders(v))) {
    02182     if (v->type == VEH_AIRCRAFT) {
    02183       /* Aircraft do something vastly different here, so handle separately */
    02184       extern void HandleMissingAircraftOrders(Aircraft *v);
    02185       HandleMissingAircraftOrders(Aircraft::From(v));
    02186       return false;
    02187     }
    02188
    02189     v->current_order.Free();
    02190     v->dest_tile = 0;
    02191     return false;
    02192   }
    02193
    02194   /* If it is unchanged, keep it. */
    02195   if (order->Equals(v->current_order) && (v->type == VEH_AIRCRAFT || v->dest_tile != 0) &&
    02196       (v->type != VEH_SHIP || !order->IsType(OT_GOTO_STATION) || Station::Get(order->GetDestination())->dock_tile != INVALID_TILE)) {
    02197     return false;
    02198   }
    02199
    02200   /* Otherwise set it, and determine the destination tile. */
    02201   v->current_order = *order;
    02202
    02203   InvalidateVehicleOrder(v, VIWD_MODIFY_ORDERS);
    02204   switch (v->type) {
    02205     default:
    02206       NOT_REACHED();
    02207
    02208     case VEH_ROAD:
    02209     case VEH_TRAIN:
    02210       break;
    02211
    02212     case VEH_AIRCRAFT:
    02213     case VEH_SHIP:
    02214       SetWindowClassesDirty(GetWindowClassForVehicleType(v->type));
    02215       break;
    02216   }
    02217
    02218   return UpdateOrderDest(v, order) && may_reverse;
    02219 }
    02220
    02228 bool Order::ShouldStopAtStation(const Vehicle *v, StationID station) const
    02229 {
    02230   bool is_dest_station = this->IsType(OT_GOTO_STATION) && this->dest == station;
    02231
    02232   return (!this->IsType(OT_GOTO_DEPOT) || (this->GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0) &&
    02233       v->last_station_visited != station && // Do stop only when we've not just been there
    02234       /* Finally do stop when there is no non-stop flag set for this type of station. */
    02235       !(this->GetNonStopType() & (is_dest_station ? ONSF_NO_STOP_AT_DESTINATION_STATION : ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS));
    02236 }
    02237
    02238 bool Order::CanLoadOrUnload() const
    02239 {
    02240   return (this->IsType(OT_GOTO_STATION) || this->IsType(OT_IMPLICIT)) &&
    02241       (this->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) == 0 &&
    02242       ((this->GetLoadType() & OLFB_NO_LOAD) == 0 ||
    02243       (this->GetUnloadType() & OUFB_NO_UNLOAD) == 0);
    02244 }
    02245
    02252 bool Order::CanLeaveWithCargo(bool has_cargo) const
    02253 {
    02254   return (this->GetLoadType() & OLFB_NO_LOAD) == 0 || (has_cargo &&
    02255       (this->GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) == 0);
    02256 }