OpenTTD: src/timetable_cmd.cpp Source File

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timetable_cmd.cpp
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1 /* $Id: timetable_cmd.cpp 27302 2015-06-20 12:04:30Z frosch $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * 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.
6 * 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.
7 * 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/>.
8 */
9
12 #include "stdafx.h"
13 #include "command_func.h"
14 #include "company_func.h"
15 #include "date_func.h"
16 #include "window_func.h"
17 #include "vehicle_base.h"
18 #include "cmd_helper.h"
19 #include "core/sort_func.hpp"
20
21 #include "table/strings.h"
22
23 #include "safeguards.h"
24
33 static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint16 val, ModifyTimetableFlags mtf, bool timetabled)
34 {
35 Order *order = v->GetOrder(order_number);
36 int total_delta = 0;
37 int timetable_delta = 0;
38
39 switch (mtf) {
40 case MTF_WAIT_TIME:
41 total_delta = val - order->GetWaitTime();
42 timetable_delta = (timetabled ? val : 0) - order->GetTimetabledWait();
43 order->SetWaitTime(val);
44 order->SetWaitTimetabled(timetabled);
45 break;
46
47 case MTF_TRAVEL_TIME:
48 total_delta = val - order->GetTravelTime();
49 timetable_delta = (timetabled ? val : 0) - order->GetTimetabledTravel();
50 order->SetTravelTime(val);
51 order->SetTravelTimetabled(timetabled);
52 break;
53
54 case MTF_TRAVEL_SPEED:
55 order->SetMaxSpeed(val);
56 break;
57
58 default:
59 NOT_REACHED();
60 }
61 v->orders.list->UpdateTotalDuration(total_delta);
62 v->orders.list->UpdateTimetableDuration(timetable_delta);
63
64 for (v = v->FirstShared(); v != NULL; v = v->NextShared()) {
65 if (v->cur_real_order_index == order_number && v->current_order.Equals(*order)) {
66 switch (mtf) {
67 case MTF_WAIT_TIME:
68 v->current_order.SetWaitTime(val);
69 v->current_order.SetWaitTimetabled(timetabled);
70 break;
71
72 case MTF_TRAVEL_TIME:
73 v->current_order.SetTravelTime(val);
74 v->current_order.SetTravelTimetabled(timetabled);
75 break;
76
77 case MTF_TRAVEL_SPEED:
78 v->current_order.SetMaxSpeed(val);
79 break;
80
81 default:
82 NOT_REACHED();
83 }
84 }
85 SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
86 }
87 }
88
103 CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
104 {
105 VehicleID veh = GB(p1, 0, 20);
106
107 Vehicle *v = Vehicle::GetIfValid(veh);
108 if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
109
110 CommandCost ret = CheckOwnership(v->owner);
111 if (ret.Failed()) return ret;
112
113 VehicleOrderID order_number = GB(p1, 20, 8);
114 Order *order = v->GetOrder(order_number);
115 if (order == NULL || order->IsType(OT_IMPLICIT)) return CMD_ERROR;
116
117 ModifyTimetableFlags mtf = Extract<ModifyTimetableFlags, 28, 2>(p1);
118 if (mtf >= MTF_END) return CMD_ERROR;
119
120 int wait_time = order->GetWaitTime();
121 int travel_time = order->GetTravelTime();
122 int max_speed = order->GetMaxSpeed();
123 switch (mtf) {
124 case MTF_WAIT_TIME:
125 wait_time = GB(p2, 0, 16);
126 break;
127
128 case MTF_TRAVEL_TIME:
129 travel_time = GB(p2, 0, 16);
130 break;
131
132 case MTF_TRAVEL_SPEED:
133 max_speed = GB(p2, 0, 16);
134 if (max_speed == 0) max_speed = UINT16_MAX; // Disable speed limit.
135 break;
136
137 default:
138 NOT_REACHED();
139 }
140
141 if (wait_time != order->GetWaitTime()) {
142 switch (order->GetType()) {
143 case OT_GOTO_STATION:
144 if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
145 break;
146
147 case OT_CONDITIONAL:
148 break;
149
150 default: return_cmd_error(STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS);
151 }
152 }
153
154 if (travel_time != order->GetTravelTime() && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
155 if (max_speed != order->GetMaxSpeed() && (order->IsType(OT_CONDITIONAL) || v->type == VEH_AIRCRAFT)) return CMD_ERROR;
156
157 if (flags & DC_EXEC) {
158 switch (mtf) {
159 case MTF_WAIT_TIME:
160 /* Set time if changing the value or confirming an estimated time as timetabled. */
161 if (wait_time != order->GetWaitTime() || (wait_time > 0 && !order->IsWaitTimetabled())) {
162 ChangeTimetable(v, order_number, wait_time, MTF_WAIT_TIME, wait_time > 0);
163 }
164 break;
165
166 case MTF_TRAVEL_TIME:
167 /* Set time if changing the value or confirming an estimated time as timetabled. */
168 if (travel_time != order->GetTravelTime() || (travel_time > 0 && !order->IsTravelTimetabled())) {
169 ChangeTimetable(v, order_number, travel_time, MTF_TRAVEL_TIME, travel_time > 0);
170 }
171 break;
172
173 case MTF_TRAVEL_SPEED:
174 if (max_speed != order->GetMaxSpeed()) {
175 ChangeTimetable(v, order_number, max_speed, MTF_TRAVEL_SPEED, max_speed != UINT16_MAX);
176 }
177 break;
178
179 default:
180 break;
181 }
182 }
183
184 return CommandCost();
185 }
186
197 CommandCost CmdSetVehicleOnTime(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
198 {
199 VehicleID veh = GB(p1, 0, 20);
200
201 Vehicle *v = Vehicle::GetIfValid(veh);
202 if (v == NULL || !v->IsPrimaryVehicle() || v->orders.list == NULL) return CMD_ERROR;
203
204 CommandCost ret = CheckOwnership(v->owner);
205 if (ret.Failed()) return ret;
206
207 if (flags & DC_EXEC) {
208 v->lateness_counter = 0;
209 SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
210 }
211
212 return CommandCost();
213 }
214
223 static int CDECL VehicleTimetableSorter(Vehicle * const *ap, Vehicle * const *bp)
224 {
225 const Vehicle *a = *ap;
226 const Vehicle *b = *bp;
227
228 VehicleOrderID a_order = a->cur_real_order_index;
229 VehicleOrderID b_order = b->cur_real_order_index;
230 int j = (int)b_order - (int)a_order;
231
232 /* Are we currently at an ordered station (un)loading? */
233 bool a_load = a->current_order.IsType(OT_LOADING) && a->current_order.GetNonStopType() != ONSF_STOP_EVERYWHERE;
234 bool b_load = b->current_order.IsType(OT_LOADING) && b->current_order.GetNonStopType() != ONSF_STOP_EVERYWHERE;
235
236 /* If the current order is not loading at the ordered station, decrease the order index by one since we have
237 * not yet arrived at the station (and thus the timetable entry; still in the travelling of the previous one).
238 * Since the ?_order variables are unsigned the -1 will flow under and place the vehicles going to order #0 at
239 * the begin of the list with vehicles arriving at #0. */
240 if (!a_load) a_order--;
241 if (!b_load) b_order--;
242
243 /* First check the order index that accounted for loading, then just the raw one. */
244 int i = (int)b_order - (int)a_order;
245 if (i != 0) return i;
246 if (j != 0) return j;
247
248 /* Look at the time we spent in this order; the higher, the closer to its destination. */
249 i = b->current_order_time - a->current_order_time;
250 if (i != 0) return i;
251
252 /* If all else is equal, use some unique index to sort it the same way. */
253 return b->unitnumber - a->unitnumber;
254 }
255
267 CommandCost CmdSetTimetableStart(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
268 {
269 bool timetable_all = HasBit(p1, 20);
270 Vehicle *v = Vehicle::GetIfValid(GB(p1, 0, 20));
271 if (v == NULL || !v->IsPrimaryVehicle() || v->orders.list == NULL) return CMD_ERROR;
272
273 CommandCost ret = CheckOwnership(v->owner);
274 if (ret.Failed()) return ret;
275
276 /* Don't let a timetable start more than 15 years into the future or 1 year in the past. */
277 Date start_date = (Date)p2;
278 if (start_date < 0 || start_date > MAX_DAY) return CMD_ERROR;
279 if (start_date - _date > 15 * DAYS_IN_LEAP_YEAR) return CMD_ERROR;
280 if (_date - start_date > DAYS_IN_LEAP_YEAR) return CMD_ERROR;
281 if (timetable_all && !v->orders.list->IsCompleteTimetable()) return CMD_ERROR;
282
283 if (flags & DC_EXEC) {
284 SmallVector<Vehicle *, 8> vehs;
285
286 if (timetable_all) {
287 for (Vehicle *w = v->orders.list->GetFirstSharedVehicle(); w != NULL; w = w->NextShared()) {
288 *vehs.Append() = w;
289 }
290 } else {
291 *vehs.Append() = v;
292 }
293
294 int total_duration = v->orders.list->GetTimetableTotalDuration();
295 int num_vehs = vehs.Length();
296
297 if (num_vehs >= 2) {
298 QSortT(vehs.Begin(), vehs.Length(), &VehicleTimetableSorter);
299 }
300
301 int base = vehs.FindIndex(v);
302
303 for (Vehicle **viter = vehs.Begin(); viter != vehs.End(); viter++) {
304 int idx = (viter - vehs.Begin()) - base;
305 Vehicle *w = *viter;
306
307 w->lateness_counter = 0;
308 ClrBit(w->vehicle_flags, VF_TIMETABLE_STARTED);
309 /* Do multiplication, then division to reduce rounding errors. */
310 w->timetable_start = start_date + idx * total_duration / num_vehs / DAY_TICKS;
311 SetWindowDirty(WC_VEHICLE_TIMETABLE, w->index);
312 }
313
314 }
315
316 return CommandCost();
317 }
318
319
333 CommandCost CmdAutofillTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
334 {
335 VehicleID veh = GB(p1, 0, 20);
336
337 Vehicle *v = Vehicle::GetIfValid(veh);
338 if (v == NULL || !v->IsPrimaryVehicle() || v->orders.list == NULL) return CMD_ERROR;
339
340 CommandCost ret = CheckOwnership(v->owner);
341 if (ret.Failed()) return ret;
342
343 if (flags & DC_EXEC) {
344 if (HasBit(p2, 0)) {
345 /* Start autofilling the timetable, which clears the
346 * "timetable has started" bit. Times are not cleared anymore, but are
347 * overwritten when the order is reached now. */
348 SetBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
349 ClrBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
350
351 /* Overwrite waiting times only if they got longer */
352 if (HasBit(p2, 1)) SetBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
353
354 v->timetable_start = 0;
355 v->lateness_counter = 0;
356 } else {
357 ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
358 ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
359 }
360
361 for (Vehicle *v2 = v->FirstShared(); v2 != NULL; v2 = v2->NextShared()) {
362 if (v2 != v) {
363 /* Stop autofilling; only one vehicle at a time can perform autofill */
364 ClrBit(v2->vehicle_flags, VF_AUTOFILL_TIMETABLE);
365 ClrBit(v2->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
366 }
367 SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
368 }
369 }
370
371 return CommandCost();
372 }
373
379 void UpdateVehicleTimetable(Vehicle *v, bool travelling)
380 {
381 uint time_taken = v->current_order_time;
382
383 v->current_order_time = 0;
384
385 if (v->current_order.IsType(OT_IMPLICIT)) return; // no timetabling of auto orders
386
387 if (v->cur_real_order_index >= v->GetNumOrders()) return;
388 Order *real_current_order = v->GetOrder(v->cur_real_order_index);
389
390 VehicleOrderID first_manual_order = 0;
391 for (Order *o = v->GetFirstOrder(); o != NULL && o->IsType(OT_IMPLICIT); o = o->next) {
392 ++first_manual_order;
393 }
394
395 bool just_started = false;
396
397 /* This vehicle is arriving at the first destination in the timetable. */
398 if (v->cur_real_order_index == first_manual_order && travelling) {
399 /* If the start date hasn't been set, or it was set automatically when
400 * the vehicle last arrived at the first destination, update it to the
401 * current time. Otherwise set the late counter appropriately to when
402 * the vehicle should have arrived. */
403 just_started = !HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
404
405 if (v->timetable_start != 0) {
406 v->lateness_counter = (_date - v->timetable_start) * DAY_TICKS + _date_fract;
407 v->timetable_start = 0;
408 }
409
410 SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
411 SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
412 }
413
414 if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) return;
415
416 bool autofilling = HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
417 bool remeasure_wait_time = !real_current_order->IsWaitTimetabled() ||
418 (autofilling && !HasBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME));
419
420 if (travelling && remeasure_wait_time) {
421 /* We just finished travelling and want to remeasure the loading time,
422 * so do not apply any restrictions for the loading to finish. */
423 v->current_order.SetWaitTime(0);
424 }
425
426 if (just_started) return;
427
428 /* Before modifying waiting times, check whether we want to preserve bigger ones. */
429 if (!real_current_order->IsType(OT_CONDITIONAL) &&
430 (travelling || time_taken > real_current_order->GetWaitTime() || remeasure_wait_time)) {
431 /* Round the time taken up to the nearest day, as this will avoid
432 * confusion for people who are timetabling in days, and can be
433 * adjusted later by people who aren't.
434 * For trains/aircraft multiple movement cycles are done in one
435 * tick. This makes it possible to leave the station and process
436 * e.g. a depot order in the same tick, causing it to not fill
437 * the timetable entry like is done for road vehicles/ships.
438 * Thus always make sure at least one tick is used between the
439 * processing of different orders when filling the timetable. */
440 uint time_to_set = CeilDiv(max(time_taken, 1U), DAY_TICKS) * DAY_TICKS;
441
442 if (travelling && (autofilling || !real_current_order->IsTravelTimetabled())) {
443 ChangeTimetable(v, v->cur_real_order_index, time_to_set, MTF_TRAVEL_TIME, autofilling);
444 } else if (!travelling && (autofilling || !real_current_order->IsWaitTimetabled())) {
445 ChangeTimetable(v, v->cur_real_order_index, time_to_set, MTF_WAIT_TIME, autofilling);
446 }
447 }
448
449 if (v->cur_real_order_index == first_manual_order && travelling) {
450 /* If we just started we would have returned earlier and have not reached
451 * this code. So obviously, we have completed our round: So turn autofill
452 * off again. */
453 ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
454 ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
455 }
456
457 if (autofilling) return;
458
459 uint timetabled = travelling ? real_current_order->GetTimetabledTravel() :
460 real_current_order->GetTimetabledWait();
461
462 /* Vehicles will wait at stations if they arrive early even if they are not
463 * timetabled to wait there, so make sure the lateness counter is updated
464 * when this happens. */
465 if (timetabled == 0 && (travelling || v->lateness_counter >= 0)) return;
466
467 v->lateness_counter -= (timetabled - time_taken);
468
469 /* When we are more late than this timetabled bit takes we (somewhat expensively)
470 * check how many ticks the (fully filled) timetable has. If a timetable cycle is
471 * shorter than the amount of ticks we are late we reduce the lateness by the
472 * length of a full cycle till lateness is less than the length of a timetable
473 * cycle. When the timetable isn't fully filled the cycle will be INVALID_TICKS. */
474 if (v->lateness_counter > (int)timetabled) {
475 Ticks cycle = v->orders.list->GetTimetableTotalDuration();
476 if (cycle != INVALID_TICKS && v->lateness_counter > cycle) {
477 v->lateness_counter %= cycle;
478 }
479 }
480
481 for (v = v->FirstShared(); v != NULL; v = v->NextShared()) {
482 SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
483 }
484 }