# timetable_cmd.cpp

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    00001 /* $Id: timetable_cmd.cpp 19132 2010-02-14 16:31:35Z alberth $ */
    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 "command_func.h"
    00014 #include "functions.h"
    00015 #include "date_func.h"
    00016 #include "window_func.h"
    00017 #include "vehicle_base.h"
    00018
    00019 #include "table/strings.h"
    00020
    00021 static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint16 time, bool is_journey)
    00022 {
    00023   Order *order = v->GetOrder(order_number);
    00024   int delta;
    00025
    00026   if (is_journey) {
    00027     delta = time - order->travel_time;
    00028     order->travel_time = time;
    00029   } else {
    00030     delta = time - order->wait_time;
    00031     order->wait_time = time;
    00032   }
    00033   v->orders.list->UpdateOrderTimetable(delta);
    00034
    00035   for (v = v->FirstShared(); v != NULL; v = v->NextShared()) {
    00036     if (v->cur_order_index == order_number && v->current_order.Equals(*order)) {
    00037       if (is_journey) {
    00038         v->current_order.travel_time = time;
    00039       } else {
    00040         v->current_order.wait_time = time;
    00041       }
    00042     }
    00043     SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00044   }
    00045 }
    00046
    00064 CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00065 {
    00066   if (!_settings_game.order.timetabling) return CMD_ERROR;
    00067
    00068   VehicleID veh = GB(p1, 0, 16);
    00069
    00070   Vehicle *v = Vehicle::GetIfValid(veh);
    00071   if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00072
    00073   VehicleOrderID order_number = GB(p1, 16, 8);
    00074   Order *order = v->GetOrder(order_number);
    00075   if (order == NULL) return CMD_ERROR;
    00076
    00077   bool packed_time = HasBit(p1, 25);
    00078   bool is_journey = HasBit(p1, 24) || packed_time;
    00079
    00080   int wait_time   = order->wait_time;
    00081   int travel_time = order->travel_time;
    00082   if (packed_time) {
    00083     travel_time = GB(p2, 0, 16);
    00084     wait_time   = GB(p2, 16, 16);
    00085   } else if (is_journey) {
    00086     travel_time = GB(p2, 0, 16);
    00087   } else {
    00088     wait_time   = GB(p2, 0, 16);
    00089   }
    00090
    00091   if (wait_time != order->wait_time) {
    00092     switch (order->GetType()) {
    00093       case OT_GOTO_STATION:
    00094         if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
    00095         break;
    00096
    00097       case OT_CONDITIONAL:
    00098         break;
    00099
    00100       default: return_cmd_error(STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS);
    00101     }
    00102   }
    00103
    00104   if (travel_time != order->travel_time && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
    00105
    00106   if (flags & DC_EXEC) {
    00107     if (wait_time   != order->wait_time)   ChangeTimetable(v, order_number, wait_time,   false);
    00108     if (travel_time != order->travel_time) ChangeTimetable(v, order_number, travel_time, true);
    00109   }
    00110
    00111   return CommandCost();
    00112 }
    00113
    00124 CommandCost CmdSetVehicleOnTime(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00125 {
    00126   if (!_settings_game.order.timetabling) return CMD_ERROR;
    00127
    00128   VehicleID veh = GB(p1, 0, 16);
    00129
    00130   Vehicle *v = Vehicle::GetIfValid(veh);
    00131   if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00132
    00133   if (flags & DC_EXEC) {
    00134     v->lateness_counter = 0;
    00135     SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00136   }
    00137
    00138   return CommandCost();
    00139 }
    00140
    00148 CommandCost CmdSetTimetableStart(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00149 {
    00150   if (!_settings_game.order.timetabling) return CMD_ERROR;
    00151
    00152   Vehicle *v = Vehicle::GetIfValid(GB(p1, 0, 16));
    00153   if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00154
    00155   /* Don't let a timetable start more than 15 years into the future or 1 year in the past. */
    00156   Date start_date = (Date)p2;
    00157   if (start_date < 0 || start_date > MAX_DAY) return CMD_ERROR;
    00158   if (start_date - _date > 15 * DAYS_IN_LEAP_YEAR) return CMD_ERROR;
    00159   if (_date - start_date > DAYS_IN_LEAP_YEAR) return CMD_ERROR;
    00160
    00161   if (flags & DC_EXEC) {
    00162     v->lateness_counter = 0;
    00163     ClrBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
    00164     v->timetable_start = start_date;
    00165
    00166     SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00167   }
    00168
    00169   return CommandCost();
    00170 }
    00171
    00172
    00186 CommandCost CmdAutofillTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00187 {
    00188   if (!_settings_game.order.timetabling) return CMD_ERROR;
    00189
    00190   VehicleID veh = GB(p1, 0, 16);
    00191
    00192   Vehicle *v = Vehicle::GetIfValid(veh);
    00193   if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
    00194
    00195   if (flags & DC_EXEC) {
    00196     if (HasBit(p2, 0)) {
    00197       /* Start autofilling the timetable, which clears the
    00198        * "timetable has started" bit. Times are not cleared anymore, but are
    00199        * overwritten when the order is reached now. */
    00200       SetBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
    00201       ClrBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
    00202
    00203       /* Overwrite waiting times only if they got longer */
    00204       if (HasBit(p2, 1)) SetBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
    00205
    00206       v->timetable_start = 0;
    00207       v->lateness_counter = 0;
    00208     } else {
    00209       ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
    00210       ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
    00211     }
    00212   }
    00213
    00214   for (Vehicle *v2 = v->FirstShared(); v2 != NULL; v2 = v2->NextShared()) {
    00215     if (v2 != v) {
    00216       /* Stop autofilling; only one vehicle at a time can perform autofill */
    00217       ClrBit(v2->vehicle_flags, VF_AUTOFILL_TIMETABLE);
    00218       ClrBit(v2->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
    00219     }
    00220     SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
    00221   }
    00222
    00223   return CommandCost();
    00224 }
    00225
    00226 void UpdateVehicleTimetable(Vehicle *v, bool travelling)
    00227 {
    00228   uint timetabled = travelling ? v->current_order.travel_time : v->current_order.wait_time;
    00229   uint time_taken = v->current_order_time;
    00230
    00231   v->current_order_time = 0;
    00232
    00233   if (!_settings_game.order.timetabling) return;
    00234
    00235   bool just_started = false;
    00236
    00237   /* This vehicle is arriving at the first destination in the timetable. */
    00238   if (v->cur_order_index == 0 && travelling) {
    00239     /* If the start date hasn't been set, or it was set automatically when
    00240      * the vehicle last arrived at the first destination, update it to the
    00241      * current time. Otherwise set the late counter appropriately to when
    00242      * the vehicle should have arrived. */
    00243     just_started = !HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
    00244
    00245     if (v->timetable_start != 0) {
    00246       v->lateness_counter = (_date - v->timetable_start) * DAY_TICKS + _date_fract;
    00247       v->timetable_start = 0;
    00248     }
    00249
    00250     SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
    00251     SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00252   }
    00253
    00254   if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) return;
    00255
    00256   if (HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE)) {
    00257     if (travelling && !HasBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME)) {
    00258       /* Need to clear that now as otherwise we are not able to reduce the wait time */
    00259       v->current_order.wait_time = 0;
    00260     }
    00261
    00262     if (just_started) return;
    00263
    00264     /* Modify station waiting time only if our new value is larger (this is
    00265      * always the case when we cleared the timetable). */
    00266     if (!v->current_order.IsType(OT_CONDITIONAL) && (travelling || time_taken > v->current_order.wait_time)) {
    00267       /* Round the time taken up to the nearest day, as this will avoid
    00268        * confusion for people who are timetabling in days, and can be
    00269        * adjusted later by people who aren't. */
    00270       time_taken = (((time_taken - 1) / DAY_TICKS) + 1) * DAY_TICKS;
    00271
    00272       ChangeTimetable(v, v->cur_order_index, time_taken, travelling);
    00273     }
    00274
    00275     if (v->cur_order_index == 0 && travelling) {
    00276       /* If we just started we would have returned earlier and have not reached
    00277        * this code. So obviously, we have completed our round: So turn autofill
    00278        * off again. */
    00279       ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
    00280       ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
    00281     }
    00282     return;
    00283   }
    00284
    00285   if (just_started) return;
    00286
    00287   /* Vehicles will wait at stations if they arrive early even if they are not
    00288    * timetabled to wait there, so make sure the lateness counter is updated
    00289    * when this happens. */
    00290   if (timetabled == 0 && (travelling || v->lateness_counter >= 0)) return;
    00291
    00292   v->lateness_counter -= (timetabled - time_taken);
    00293
    00294   for (v = v->FirstShared(); v != NULL; v = v->NextShared()) {
    00295     SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
    00296   }
    00297 }