vehiclelist.cpp

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00001 /* $Id: vehiclelist.cpp 24419 2012-07-20 19:28:51Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "train.h"
00014 #include "vehiclelist.h"
00015 
00020 uint32 VehicleListIdentifier::Pack()
00021 {
00022   byte c = this->company == OWNER_NONE ? 0xF : (byte)this->company;
00023   assert(c             < (1 <<  4));
00024   assert(this->type    < (1 <<  3));
00025   assert(this->vtype   < (1 <<  2));
00026   assert(this->index   < (1 << 20));
00027 
00028   return c << 28 | this->type << 23 | this->vtype << 26 | this->index;
00029 }
00030 
00036 bool VehicleListIdentifier::Unpack(uint32 data)
00037 {
00038   byte c        = GB(data, 28, 4);
00039   this->company = c == 0xF ? OWNER_NONE : (CompanyID)c;
00040   this->type    = (VehicleListType)GB(data, 23, 3);
00041   this->vtype   = (VehicleType)GB(data, 26, 2);
00042   this->index   = GB(data, 0, 20);
00043 
00044   return this->type < VLT_END;
00045 }
00046 
00051 VehicleListIdentifier::VehicleListIdentifier(uint32 data)
00052 {
00053   bool ret = this->Unpack(data);
00054   assert(ret);
00055 }
00056 
00065 void BuildDepotVehicleList(VehicleType type, TileIndex tile, VehicleList *engines, VehicleList *wagons, bool individual_wagons)
00066 {
00067   engines->Clear();
00068   if (wagons != NULL && wagons != engines) wagons->Clear();
00069 
00070   const Vehicle *v;
00071   FOR_ALL_VEHICLES(v) {
00072     /* General tests for all vehicle types */
00073     if (v->type != type) continue;
00074     if (v->tile != tile) continue;
00075 
00076     switch (type) {
00077       case VEH_TRAIN: {
00078         const Train *t = Train::From(v);
00079         if (t->IsArticulatedPart() || t->IsRearDualheaded()) continue;
00080         if (t->track != TRACK_BIT_DEPOT) continue;
00081         if (wagons != NULL && t->First()->IsFreeWagon()) {
00082           if (individual_wagons || t->IsFreeWagon()) *wagons->Append() = t;
00083           continue;
00084         }
00085         break;
00086       }
00087 
00088       default:
00089         if (!v->IsInDepot()) continue;
00090         break;
00091     }
00092 
00093     if (!v->IsPrimaryVehicle()) continue;
00094 
00095     *engines->Append() = v;
00096   }
00097 
00098   /* Ensure the lists are not wasting too much space. If the lists are fresh
00099    * (i.e. built within a command) then this will actually do nothing. */
00100   engines->Compact();
00101   if (wagons != NULL && wagons != engines) wagons->Compact();
00102 }
00103 
00110 bool GenerateVehicleSortList(VehicleList *list, const VehicleListIdentifier &vli)
00111 {
00112   list->Clear();
00113 
00114   const Vehicle *v;
00115 
00116   switch (vli.type) {
00117     case VL_STATION_LIST:
00118       FOR_ALL_VEHICLES(v) {
00119         if (v->type == vli.vtype && v->IsPrimaryVehicle()) {
00120           const Order *order;
00121 
00122           FOR_VEHICLE_ORDERS(v, order) {
00123             if ((order->IsType(OT_GOTO_STATION) || order->IsType(OT_GOTO_WAYPOINT) || order->IsType(OT_IMPLICIT))
00124                 && order->GetDestination() == vli.index) {
00125               *list->Append() = v;
00126               break;
00127             }
00128           }
00129         }
00130       }
00131       break;
00132 
00133     case VL_SHARED_ORDERS:
00134       /* Add all vehicles from this vehicle's shared order list */
00135       v = Vehicle::GetIfValid(vli.index);
00136       if (v == NULL || v->type != vli.vtype || !v->IsPrimaryVehicle()) return false;
00137 
00138       for (; v != NULL; v = v->NextShared()) {
00139         *list->Append() = v;
00140       }
00141       break;
00142 
00143     case VL_GROUP_LIST:
00144       if (vli.index != ALL_GROUP) {
00145         FOR_ALL_VEHICLES(v) {
00146           if (v->type == vli.vtype && v->IsPrimaryVehicle() &&
00147               v->owner == vli.company && v->group_id == vli.index) {
00148             *list->Append() = v;
00149           }
00150         }
00151         break;
00152       }
00153       /* FALL THROUGH */
00154 
00155     case VL_STANDARD:
00156       FOR_ALL_VEHICLES(v) {
00157         if (v->type == vli.vtype && v->owner == vli.company && v->IsPrimaryVehicle()) {
00158           *list->Append() = v;
00159         }
00160       }
00161       break;
00162 
00163     case VL_DEPOT_LIST:
00164       FOR_ALL_VEHICLES(v) {
00165         if (v->type == vli.vtype && v->IsPrimaryVehicle()) {
00166           const Order *order;
00167 
00168           FOR_VEHICLE_ORDERS(v, order) {
00169             if (order->IsType(OT_GOTO_DEPOT) && !(order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) && order->GetDestination() == vli.index) {
00170               *list->Append() = v;
00171               break;
00172             }
00173           }
00174         }
00175       }
00176       break;
00177 
00178     default: return false;
00179   }
00180 
00181   list->Compact();
00182   return true;
00183 }