Add support for multiple scheduled dispatch schedules per order list

src/command.cpp

@@ -269,10 +269,12 @@ CommandProc CmdScheduledDispatch;
 CommandProcEx CmdScheduledDispatchAdd;
 CommandProc CmdScheduledDispatchRemove;
 CommandProc CmdScheduledDispatchSetDuration;
-CommandProc CmdScheduledDispatchSetStartDate;
+CommandProcEx CmdScheduledDispatchSetStartDate;
 CommandProc CmdScheduledDispatchSetDelay;
 CommandProc CmdScheduledDispatchResetLastDispatch;
 CommandProc CmdScheduledDispatchClear;
+CommandProcEx CmdScheduledDispatchAddNewSchedule;
+CommandProc CmdScheduledDispatchRemoveSchedule;
 
 CommandProc CmdAddPlan;
 CommandProcEx CmdAddPlanLine;
@@ -509,6 +511,8 @@ static const Command _command_proc_table[] = {
 	DEF_CMD(CmdScheduledDispatchSetDelay,                      0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_SET_DELAY
 	DEF_CMD(CmdScheduledDispatchResetLastDispatch,             0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_RESET_LAST_DISPATCH
 	DEF_CMD(CmdScheduledDispatchClear,                         0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_CLEAR
+	DEF_CMD(CmdScheduledDispatchAddNewSchedule,                0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_ADD_NEW_SCHEDULE
+	DEF_CMD(CmdScheduledDispatchRemoveSchedule,                0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_REMOVE_SCHEDULE
 
 	DEF_CMD(CmdAddPlan,                              CMD_NO_TEST, CMDT_OTHER_MANAGEMENT      ), // CMD_ADD_PLAN
 	DEF_CMD(CmdAddPlanLine,                          CMD_NO_TEST, CMDT_OTHER_MANAGEMENT      ), // CMD_ADD_PLAN_LINE

src/command_func.h

@@ -154,4 +154,7 @@ CommandCallback CcDeleteVirtualTrain;
 CommandCallback CcAddVirtualEngine;
 CommandCallback CcMoveNewVirtualEngine;
 
+/* schdispatch_gui.cpp */
+CommandCallback CcAddNewSchDispatchSchedule;
+
 #endif /* COMMAND_FUNC_H */

src/command_type.h

@@ -450,6 +450,8 @@ enum Commands {
 	CMD_SCHEDULED_DISPATCH_SET_DELAY,           ///< scheduled dispatch set maximum allow delay
 	CMD_SCHEDULED_DISPATCH_RESET_LAST_DISPATCH, ///< scheduled dispatch reset last dispatch date
 	CMD_SCHEDULED_DISPATCH_CLEAR,               ///< scheduled dispatch clear schedule
+	CMD_SCHEDULED_DISPATCH_ADD_NEW_SCHEDULE,    ///< scheduled dispatch add new schedule
+	CMD_SCHEDULED_DISPATCH_REMOVE_SCHEDULE,     ///< scheduled dispatch remove schedule
 
 	CMD_ADD_PLAN,
 	CMD_ADD_PLAN_LINE,

src/departures.cpp

@@ -88,21 +88,23 @@ static uint8 GetDepartureConditionalOrderMode(const Order *order)
 static inline bool VehicleSetNextDepartureTime(DateTicks *previous_departure, uint *waiting_time, const DateTicksScaled date_only_scaled, const Vehicle *v, const Order *order, bool arrived_at_timing_point, schdispatch_cache_t &dept_schedule_last)
 {
 	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
-		/* Loop over all order to find the first waiting order */
+		auto is_current_implicit_order = [&v](const Order *o) -> bool {
-		for (int j = 0; j < v->orders.list->GetNumOrders(); ++j) {
+			if (v->cur_implicit_order_index >= v->orders.list->GetNumOrders()) return false;
-			Order* iterating_order = v->orders.list->GetOrderAt(j);
+			return v->orders.list->GetOrderAt(v->cur_implicit_order_index) == o;
+		};
+
+		/* This condition means that we want departure time for the dispatch order */
+		/* but not if the vehicle has arrived at the dispatch order because the timetable is already shifted */
+		if (order->IsScheduledDispatchOrder(true) && !(arrived_at_timing_point && is_current_implicit_order(order))) {
+			const DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(order->GetDispatchScheduleIndex());
 
-			if (iterating_order->IsWaitTimetabled() && !iterating_order->IsType(OT_IMPLICIT)) {
-				/* This condition means that we want departure time for the first order */
-				/* but not if the vehicle has arrived at the first order because the timetable is already shifted */
-				if (iterating_order == order && !(arrived_at_timing_point && v->cur_implicit_order_index == j)) {
 			DateTicksScaled actual_departure    = -1;
-					const DateTicksScaled begin_time    = v->orders.list->GetScheduledDispatchStartTick();
+			const DateTicksScaled begin_time    = ds.GetScheduledDispatchStartTick();
-					const uint32 dispatch_duration      = v->orders.list->GetScheduledDispatchDuration();
+			const uint32 dispatch_duration      = ds.GetScheduledDispatchDuration();
-					const int32 max_delay               = v->orders.list->GetScheduledDispatchDelay();
+			const int32 max_delay               = ds.GetScheduledDispatchDelay();
 
 			/* Earliest possible departure according to schedue */
-					DateTicksScaled earliest_departure = begin_time + v->orders.list->GetScheduledDispatchLastDispatch();
+			DateTicksScaled earliest_departure = begin_time + ds.GetScheduledDispatchLastDispatch();
 
 			/* Earliest possible departure according to vehicle current timetable */
 			if (earliest_departure + max_delay < date_only_scaled + *previous_departure + order->GetTravelTime()) {
@@ -111,7 +113,7 @@ static inline bool VehicleSetNextDepartureTime(DateTicks *previous_departure, ui
 			}
 
 			/* Find next available slots */
-					for (auto current_offset : v->orders.list->GetScheduledDispatch()) {
+			for (auto current_offset : ds.GetScheduledDispatch()) {
 				if (current_offset >= dispatch_duration) continue;
 				DateTicksScaled current_departure = begin_time + current_offset;
 				while (current_departure <= earliest_departure) {
@@ -137,14 +139,11 @@ static inline bool VehicleSetNextDepartureTime(DateTicks *previous_departure, ui
 		}
 
 		/* This is special case for proper calculation of arrival time. */
-				if (arrived_at_timing_point && v->cur_implicit_order_index == j) {
+		if (arrived_at_timing_point && v->cur_implicit_order_index < v->orders.list->GetNumOrders() && v->orders.list->GetOrderAt(v->cur_implicit_order_index)->IsScheduledDispatchOrder(true)) {
 			*previous_departure += order->GetTravelTime() + order->GetWaitTime();
 			*waiting_time = -v->lateness_counter + order->GetWaitTime();
 			return false;
 		}
-				break;
-			} /* if it is first waiting order */
-		} /* for in order list */
 	} /* if vehicle is on scheduled dispatch */
 
 	/* Not using schedule for this departure time */

src/lang/english.txt

@@ -5701,8 +5701,9 @@ STR_TIMETABLE_AUTO_SEPARATION_TOOLTIP                           :{BLACK}Automati
 
 STR_TIMETABLE_SCHEDULED_DISPATCH                                :{BLACK}Scheduled Dispatch
 STR_TIMETABLE_SCHEDULED_DISPATCH_TOOLTIP                        :{BLACK}Open scheduled dispatch windows for automatic setting of timetable start time
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[scheduled dispatch]
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[{STRING1}scheduled dispatch]
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[scheduled dispatch - no wait time timetabled]{POP_COLOUR}
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[{STRING1}scheduled dispatch - no wait time timetabled]{POP_COLOUR}
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_SCHEDULE_INDEX           :{NUM}{NBSP}-{NBSP}
 
 STR_TIMETABLE_EXPECTED                                          :{BLACK}Expected
 STR_TIMETABLE_SCHEDULED                                         :{BLACK}Scheduled
@@ -5721,6 +5722,11 @@ STR_TIMETABLE_LEAVE_EARLY_FULL_ALL                              :Leave early if
 STR_TIMETABLE_EXTRA_DROP_DOWN                                   :{BLACK}Extra
 STR_TIMETABLE_EXTRA_DROP_DOWN_TOOLTIP                           :{BLACK}Extra Options{}{}Leave as timetabled: Vehicles wait until their timetabled departure time before leaving (default).{}Leave Early: Vehicles leave as soon as loading/unloading is done, possibly before the timetabled departure time.{}Leave Early if Any Full: As above, if any cargo is fully loaded.{}Leave Early if All Full: As above, if all cargoes are fully loaded.
 
+STR_TIMETABLE_ASSIGN_SCHEDULE_DROP_DOWN                         :{BLACK}Assign Schedule
+STR_TIMETABLE_ASSIGN_SCHEDULE_DROP_DOWN_TOOLTIP                 :{BLACK}Assign or unassign a scheduled dispatch schedule to the selected order
+STR_TIMETABLE_ASSIGN_SCHEDULE_NONE                              :No Schedule
+STR_TIMETABLE_ASSIGN_SCHEDULE_ID                                :Schedule {NUM}
+
 STR_TIMETABLE_ARRIVAL_ABBREVIATION                              :A:
 STR_TIMETABLE_DEPARTURE_ABBREVIATION                            :D:
 
@@ -5730,10 +5736,11 @@ STR_TIMETABLE_AUTOSEP_SINGLE_VEH                                :{BLACK}This tim
 STR_TIMETABLE_WARNING_AUTOSEP_CONDITIONAL                       :{BLACK}Cannot auto separate timetable: conditional order(s) present
 STR_TIMETABLE_WARNING_AUTOSEP_MISSING_TIMINGS                   :{BLACK}Cannot auto separate timetable: wait or travel time(s) missing
 STR_TIMETABLE_WARNING_FULL_LOAD                                 :{BLACK}Timetabling full-load orders is not recommended
-STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL                      :{BLACK}Autofill will only update taken branch of conditional orders.
+STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL                      :{BLACK}Autofill will only update taken branch of conditional orders
-STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}Not all conditional order branch-taken travel times are timetabled.
+STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}Not all conditional order branch-taken travel times are timetabled
-STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER               :{BLACK}No order is suitable for use with scheduled dispatch.
+STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER_ASSIGNED      :{BLACK}The dispatch schedule is not assigned to an order
-STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}The scheduled dispatch order should have a timetabled wait time.
+STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}The scheduled dispatch order should have a timetabled wait time
+STR_TIMETABLE_WARNING_SCHEDULE_ID                               :{BLACK}Schedule {NUM}: {STRING}
 
 # Date window (for timetable)
 STR_DATE_CAPTION                                                :{WHITE}Set date
@@ -7115,7 +7122,17 @@ STR_SCHDISPATCH_RESET_LAST_DISPATCH_TOOLTIP                     :{BLACK}Reset wh
 STR_SCHDISPATCH_CLEAR                                           :{BLACK}Clear Departure Slots
 STR_SCHDISPATCH_CLEAR_TOOLTIP                                   :{BLACK}Clear all departure slots from the schedule.
 STR_SCHDISPATCH_MANAGE                                          :{BLACK}Manage Schedule
-STR_SCHDISPATCH_MANAGE_TOOLTIP                                  :{STRING}{}{}{STRING}
+STR_SCHDISPATCH_MANAGE_TOOLTIP                                  :{STRING}{}{}{STRING}{}{}{STRING}
+STR_SCHDISPATCH_PREV_SCHEDULE                                   :{BLACK}Previous
+STR_SCHDISPATCH_PREV_SCHEDULE_TOOLTIP                           :{BLACK}Go to previous dispatch schedule
+STR_SCHDISPATCH_NEXT_SCHEDULE                                   :{BLACK}Next
+STR_SCHDISPATCH_NEXT_SCHEDULE_TOOLTIP                           :{BLACK}Go to next dispatch schedule
+STR_SCHDISPATCH_ADD_SCHEDULE                                    :{BLACK}Add
+STR_SCHDISPATCH_ADD_SCHEDULE_TOOLTIP                            :{BLACK}Add a new dispatch schedule
+STR_SCHDISPATCH_REMOVE_SCHEDULE                                 :{BLACK}Remove Current Schedule
+STR_SCHDISPATCH_REMOVE_SCHEDULE_TOOLTIP                         :{BLACK}Remove this dispatch schedule entirely.
+STR_SCHDISPATCH_NO_SCHEDULES                                    :{BLACK}No Schedules
+STR_SCHDISPATCH_SCHEDULE_ID                                     :{BLACK}Schedule {NUM} of {NUM}
 
 STR_SCHDISPATCH_SUMMARY_LAST_DEPARTURE_PAST                     :{BLACK}Last departure at {DATE_WALLCLOCK_TINY}.
 STR_SCHDISPATCH_SUMMARY_LAST_DEPARTURE_FUTURE                   :{BLACK}Last departure has not left yet, it will depart at {DATE_WALLCLOCK_TINY}.

src/lang/galician.txt

@@ -6681,8 +6681,8 @@ STR_TIMETABLE_AUTO_SEPARATION                                   :{BLACK}Auto Sep
 STR_TIMETABLE_AUTO_SEPARATION_TOOLTIP                           :{BLACK}Automáticamente axusta a hora de comezo dos horarios para asegurar a separación dos vehículos
 STR_TIMETABLE_SCHEDULED_DISPATCH                                :{BLACK}Saída programada
 STR_TIMETABLE_SCHEDULED_DISPATCH_TOOLTIP                        :{BLACK}Abrir fiestras de saídas programadas para configurar automáticamente a hora de inicio dos horarios
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[saída programada]
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[{STRING}saída programada]
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[saída programadda - sen tempo de espera no horario]{POP_COLOUR}
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[{STRING}saída programadda - sen tempo de espera no horario]{POP_COLOUR}
 STR_TIMETABLE_LOCK_ORDER_TIME_TOOLTIP                           :{BLACK}Bloquear/desbloquear a cantidade de tempo para a orde resaltada (Ctrl+Click fixa o estado de bloqueo para todas as ordes).{}Cando estea bloqueado, a hora non se modificará mediante o autocompletado ou automatización do horario.
 STR_TIMETABLE_LEAVE_EARLY_ORDER                                 :[saír cedo]
 STR_TIMETABLE_LEAVE_EARLY_ORDER_FULL_ANY                        :[saír cedo se calquera cargamento está cheo]
@@ -6701,7 +6701,6 @@ STR_TIMETABLE_WARNING_AUTOSEP_MISSING_TIMINGS                   :{BLACK}Non se p
 STR_TIMETABLE_WARNING_FULL_LOAD                                 :{BLACK}Non se recomenda a programación de ordes a carga completa
 STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL                      :{BLACK}O enchemento automático só actualizará as ordes condicionais da rama escollida
 STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}Non todas as ordes da rama condicional escollida están programadas.
-STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER               :{BLACK}Non hai unha orde axeitada para usar coa saída programada.
 STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}A orde de saída programada debería ter un temepo de espera programado.
 
 STR_DATE_MINUTES_MINUTE_TOOLTIP                                 :{BLACK}Seleccionar minuto

src/lang/german.txt

@@ -5479,8 +5479,8 @@ STR_TIMETABLE_AUTO_SEPARATION_TOOLTIP                           :{BLACK}Passt au
 
 STR_TIMETABLE_SCHEDULED_DISPATCH                                :{BLACK}Geplante Beförderung
 STR_TIMETABLE_SCHEDULED_DISPATCH_TOOLTIP                        :{BLACK}Öffnet das Fenster für die geplante Beförderung, um den Beginn des Fahrplans automatisch zu setzen
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[Geplante Beförderung]
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[{STRING}Geplante Beförderung]
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[Geplante Beförderung - keine Wartezeit geplant]{POP_COLOUR}
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[{STRING}Geplante Beförderung - keine Wartezeit geplant]{POP_COLOUR}
 
 STR_TIMETABLE_EXPECTED                                          :{BLACK}Voraussichtlich
 STR_TIMETABLE_SCHEDULED                                         :{BLACK}Fahrplanmäßig
@@ -5510,7 +5510,6 @@ STR_TIMETABLE_WARNING_AUTOSEP_MISSING_TIMINGS                   :{BLACK}Kann Fah
 STR_TIMETABLE_WARNING_FULL_LOAD                                 :{BLACK}Volllade-Aufträge zu planen ist nicht empfohlen
 STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL                      :{BLACK}Es werden nur bedingte Sprünge erfasst, die genommen wurden
 STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}Nicht alle Reisezeiten der bedingten Sprünge sind geplant
-STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER               :{BLACK}Kein Auftrag ist geeignet für die Nutzung der geplanten Beförderung
 STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}Der geplant beförderte Auftrag sollte eine geplante Wartezeit haben
 
 # Date window (for timetable)

src/lang/korean.txt

@@ -5697,8 +5697,8 @@ STR_TIMETABLE_AUTO_SEPARATION_TOOLTIP                           :{BLACK}시간
 
 STR_TIMETABLE_SCHEDULED_DISPATCH                                :{BLACK}배차 일정
 STR_TIMETABLE_SCHEDULED_DISPATCH_TOOLTIP                        :{BLACK}시간표 시작 시간 자동 설정을 위한 '배차 일정' 창을 엽니다.
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[배차 기준]
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER                          :[배{STRING}차 기준]
-STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[배차 기준 - 대기 시간표가 작성되지 않음]{POP_COLOUR}
+STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME             :{PUSH_COLOUR}{RED}[{STRING}배차 기준 - 대기 시간표가 작성되지 않음]{POP_COLOUR}
 
 STR_TIMETABLE_EXPECTED                                          :{BLACK}예정일 기준
 STR_TIMETABLE_SCHEDULED                                         :{BLACK}예정 소요시간 기준
@@ -5728,7 +5728,6 @@ STR_TIMETABLE_WARNING_AUTOSEP_MISSING_TIMINGS                   :{BLACK}자동
 STR_TIMETABLE_WARNING_FULL_LOAD                                 :{BLACK}'가득 싣기'가 설정되어 있는 경로에 시간표를 지정하는 것은 권장하지 않습니다.
 STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL                      :{BLACK}자동 시간 설정은 조건부 경로 중 한 경로만 채울 것입니다.
 STR_TIMETABLE_NON_TIMETABLED_BRANCH                             :{BLACK}하나 이상의 조건부 경로 운행 시간이 채워지지 않았습니다.
-STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER               :{BLACK}배차 일정을 사용하기에 적합한 경로가 존재하지 않습니다.
 STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME     :{BLACK}배차 기준은 대기 시간이 작성되어 있어야 합니다.
 
 # Date window (for timetable)
@@ -7111,7 +7110,7 @@ STR_SCHDISPATCH_RESET_LAST_DISPATCH_TOOLTIP                     :{BLACK}최근
 STR_SCHDISPATCH_CLEAR                                           :{BLACK}출발 슬롯 초기화
 STR_SCHDISPATCH_CLEAR_TOOLTIP                                   :{BLACK}일정에서 모든 출발 슬롯을 제거합니다.
 STR_SCHDISPATCH_MANAGE                                          :{BLACK}일정 관리
-STR_SCHDISPATCH_MANAGE_TOOLTIP                                  :{STRING}{}{}{STRING}
+STR_SCHDISPATCH_MANAGE_TOOLTIP                                  :{STRING}{}{}{STRING}{}{}{STRING}
 
 STR_SCHDISPATCH_SUMMARY_LAST_DEPARTURE_PAST                     :{BLACK}최근 출발: {DATE_WALLCLOCK_TINY}
 STR_SCHDISPATCH_SUMMARY_LAST_DEPARTURE_FUTURE                   :{BLACK}최근 배차된 열차가 아직 출발하지 않았습니다. {DATE_WALLCLOCK_TINY}에 출발할 예정입니다.

src/order_backup.cpp

@@ -69,11 +69,7 @@ OrderBackup::OrderBackup(const Vehicle *v, uint32 user)
 
 		if (v->orders.list != nullptr && HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
 			SetBit(this->vehicle_flags, VF_SCHEDULED_DISPATCH);
-			this->scheduled_dispatch = v->orders.list->GetScheduledDispatch();
+			this->dispatch_schedules = v->orders.list->GetScheduledDispatchScheduleSet();
-			this->scheduled_dispatch_duration = v->orders.list->GetScheduledDispatchDuration();
-			this->scheduled_dispatch_start_date = v->orders.list->GetScheduledDispatchStartDatePart();
-			this->scheduled_dispatch_start_full_date_fract = v->orders.list->GetScheduledDispatchStartDateFractPart();
-			this->scheduled_dispatch_max_delay = v->orders.list->GetScheduledDispatchDelay();
 		}
 	}
 
@@ -95,12 +91,7 @@ void OrderBackup::DoRestore(Vehicle *v)
 
 		if (HasBit(this->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
 			SetBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH);
-			v->orders.list->SetScheduledDispatchDuration(this->scheduled_dispatch_duration);
+			v->orders.list->GetScheduledDispatchScheduleSet() = std::move(this->dispatch_schedules);
-			v->orders.list->SetScheduledDispatchDelay(this->scheduled_dispatch_max_delay);
-			v->orders.list->SetScheduledDispatchStartDate(this->scheduled_dispatch_start_date,
-					this->scheduled_dispatch_start_full_date_fract);
-			v->orders.list->SetScheduledDispatchLastDispatch(0);
-			v->orders.list->SetScheduledDispatch(std::move(this->scheduled_dispatch));
 		}
 
 		/* Make sure buoys/oil rigs are updated in the station list. */

src/order_backup.h

@@ -15,6 +15,7 @@
 #include "tile_type.h"
 #include "vehicle_type.h"
 #include "base_consist.h"
+#include "order_base.h"
 #include "saveload/saveload_common.h"
 
 /** Unique identifier for an order backup. */
@@ -43,6 +44,7 @@ private:
 	friend SaveLoadTable GetOrderBackupDescription(); ///< Saving and loading of order backups.
 	friend upstream_sl::SaveLoadTable upstream_sl::GetOrderBackupDescription(); ///< Saving and loading of order backups.
 	friend void Load_BKOR();   ///< Creating empty orders upon savegame loading.
+	friend void Save_BKOR();   ///< Saving orders upon savegame saving.
 	friend upstream_sl::BKORChunkHandler;
 	uint32 user;               ///< The user that requested the backup.
 	TileIndex tile;            ///< Tile of the depot where the order was changed.
@@ -51,12 +53,7 @@ private:
 	const Vehicle *clone;      ///< Vehicle this vehicle was a clone of.
 	Order *orders;             ///< The actual orders if the vehicle was not a clone.
 
-	std::vector<uint32> scheduled_dispatch;    ///< Scheduled dispatch time
+	std::vector<DispatchSchedule> dispatch_schedules; ///< Scheduled dispatch schedules
-	uint32 scheduled_dispatch_duration;        ///< Scheduled dispatch duration
-	Date scheduled_dispatch_start_date;        ///< Scheduled dispatch start date
-	uint16 scheduled_dispatch_start_full_date_fract;///< Scheduled dispatch start full date fraction;
-	                                           /// this count to (DAY_TICK * _settings_game.economy.day_length_factor)
-	int32 scheduled_dispatch_max_delay;        ///< Maximum allowed delay
 
 	static uint update_counter;
 

src/order_base.h

@@ -53,6 +53,7 @@ void ClearOrderDestinationRefcountMap();
 struct OrderExtraInfo {
 	uint8 cargo_type_flags[NUM_CARGO] = {}; ///< Load/unload types for each cargo type.
 	uint32 xdata = 0;                       ///< Extra arbitrary data
+	uint16 dispatch_index = 0;              ///< Scheduled dispatch index + 1
 	uint8 xflags = 0;                       ///< Extra flags
 };
 
@@ -526,6 +527,24 @@ public:
 		return true;
 	}
 
+	inline int GetDispatchScheduleIndex() const
+	{
+		return this->extra != nullptr ? (int)this->extra->dispatch_index - 1 : -1;
+	}
+
+	inline void SetDispatchScheduleIndex(int schedule_index)
+	{
+		if (schedule_index != this->GetDispatchScheduleIndex()) {
+			this->CheckExtraInfoAlloced();
+			this->extra->dispatch_index = (uint16)(schedule_index + 1);
+		}
+	}
+
+	inline bool IsScheduledDispatchOrder(bool require_wait_timetabled) const
+	{
+		return this->extra != nullptr && this->extra->dispatch_index > 0 && (!require_wait_timetabled || this->IsWaitTimetabled());
+	}
+
 	void AssignOrder(const Order &other);
 	bool Equals(const Order &other) const;
 
@@ -587,6 +606,103 @@ template <typename T, typename F> T CargoMaskValueFilter(CargoTypes &cargo_mask,
 	return value;
 }
 
+struct DispatchSchedule {
+private:
+	friend SaveLoadTable GetDispatchScheduleDescription();              ///< Saving and loading of dispatch schedules
+
+	std::vector<uint32> scheduled_dispatch;                             ///< Scheduled dispatch time
+	uint32 scheduled_dispatch_duration = 0;                             ///< Scheduled dispatch duration
+	Date scheduled_dispatch_start_date = -1;                            ///< Scheduled dispatch start date
+	uint16 scheduled_dispatch_start_full_date_fract = 0;                ///< Scheduled dispatch start full date fraction;
+	                                                                    ///  this counts to (DAY_TICK * _settings_game.economy.day_length_factor)
+	int32 scheduled_dispatch_last_dispatch = 0;                         ///< Last vehicle dispatched offset
+	int32 scheduled_dispatch_max_delay = 0;                             ///< Maximum allowed delay
+
+public:
+	/**
+	 * Get the vector of all scheduled dispatch slot
+	 * @return  first scheduled dispatch
+	 */
+	inline const std::vector<uint32> &GetScheduledDispatch() const { return this->scheduled_dispatch; }
+
+	void SetScheduledDispatch(std::vector<uint32> dispatch_list);
+	void AddScheduledDispatch(uint32 offset);
+	void RemoveScheduledDispatch(uint32 offset);
+	void ClearScheduledDispatch() { this->scheduled_dispatch.clear(); }
+	void UpdateScheduledDispatch();
+
+	/**
+	 * Set the scheduled dispatch duration, in scaled tick
+	 * @param  duration  New duration
+	 */
+	inline void SetScheduledDispatchDuration(uint32 duration) { this->scheduled_dispatch_duration = duration; }
+
+	/**
+	 * Get the scheduled dispatch duration, in scaled tick
+	 * @return  scheduled dispatch duration
+	 */
+	inline uint32 GetScheduledDispatchDuration() const { return this->scheduled_dispatch_duration; }
+
+	/**
+	 * Set the scheduled dispatch start
+	 * @param  start New start date
+	 * @param  fract New start full date fraction, see \c CmdScheduledDispatchSetStartDate
+	 */
+	inline void SetScheduledDispatchStartDate(Date start_date, uint16 start_full_date_fract)
+	{
+		this->scheduled_dispatch_start_date = start_date;
+		this->scheduled_dispatch_start_full_date_fract = start_full_date_fract;
+	}
+
+	/**
+	 * Get the scheduled dispatch start date part
+	 * @return  scheduled dispatch start date part
+	 */
+	inline Date GetScheduledDispatchStartDatePart() const { return this->scheduled_dispatch_start_date; }
+
+	/**
+	 * Get the scheduled dispatch start date fract part
+	 * @return  scheduled dispatch start date fract part
+	 */
+	inline uint16 GetScheduledDispatchStartDateFractPart() const { return this->scheduled_dispatch_start_full_date_fract; }
+
+	/**
+	 * Get the scheduled dispatch start date, in absolute scaled tick
+	 * @return  scheduled dispatch start date
+	 */
+	inline DateTicksScaled GetScheduledDispatchStartTick() const { return SchdispatchConvertToScaledTick(this->scheduled_dispatch_start_date, this->scheduled_dispatch_start_full_date_fract); }
+
+	/**
+	 * Whether the scheduled dispatch setting is valid
+	 * @return  scheduled dispatch start date fraction
+	 */
+	inline bool IsScheduledDispatchValid() const { return this->scheduled_dispatch_start_date >= 0 && this->scheduled_dispatch_duration > 0; }
+
+	/**
+	 * Set the scheduled dispatch last dispatch offset, in scaled tick
+	 * @param  duration  New last dispatch offset
+	 */
+	inline void SetScheduledDispatchLastDispatch(int32 offset) { this->scheduled_dispatch_last_dispatch = offset; }
+
+	/**
+	 * Get the scheduled dispatch last dispatch offset, in scaled tick
+	 * @return  scheduled dispatch last dispatch
+	 */
+	inline int32 GetScheduledDispatchLastDispatch() const { return this->scheduled_dispatch_last_dispatch; }
+
+	/**
+	 * Set the scheduled dispatch maximum allowed delay, in scaled tick
+	 * @param  delay  New maximum allow delay
+	 */
+	inline void SetScheduledDispatchDelay(int32 delay) { this->scheduled_dispatch_max_delay = delay; }
+
+	/**
+	 * Get the scheduled dispatch maximum alowed delay, in scaled tick
+	 * @return  scheduled dispatch last dispatch
+	 */
+	inline int32 GetScheduledDispatchDelay() const { return this->scheduled_dispatch_max_delay; }
+};
+
 /**
  * Shared order list linking together the linked list of orders and the list
  *  of vehicles sharing this order list.
@@ -611,21 +727,13 @@ private:
 	Ticks timetable_duration;         ///< NOSAVE: Total timetabled duration of the order list.
 	Ticks total_duration;             ///< NOSAVE: Total (timetabled or not) duration of the order list.
 
-	std::vector<uint32> scheduled_dispatch;    ///< Scheduled dispatch time
+	std::vector<DispatchSchedule> dispatch_schedules; ///< Scheduled dispatch schedules
-	uint32 scheduled_dispatch_duration;        ///< Scheduled dispatch duration
-	Date scheduled_dispatch_start_date;        ///< Scheduled dispatch start date
-	uint16 scheduled_dispatch_start_full_date_fract;///< Scheduled dispatch start full date fraction;
-	                                           /// this count to (DAY_TICK * _settings_game.economy.day_length_factor)
-	int32 scheduled_dispatch_last_dispatch;    ///< Last vehicle dispatched offset
-	int32 scheduled_dispatch_max_delay;        ///< Maximum allowed delay
 
 public:
 	/** Default constructor producing an invalid order list. */
 	OrderList(VehicleOrderID num_orders = INVALID_VEH_ORDER_ID)
 		: first(nullptr), num_manual_orders(0), num_vehicles(0), first_shared(nullptr),
-		  timetable_duration(0), total_duration(0), scheduled_dispatch_duration(0),
+		  timetable_duration(0), total_duration(0) { }
-		  scheduled_dispatch_start_date(-1), scheduled_dispatch_start_full_date_fract(0),
-		  scheduled_dispatch_last_dispatch(0), scheduled_dispatch_max_delay(0) { }
 
 	/**
 	 * Create an order list with the given order chain for the given vehicle.
@@ -752,90 +860,13 @@ public:
 	void DebugCheckSanity() const;
 	bool CheckOrderListIndexing() const;
 
-	/**
+	inline std::vector<DispatchSchedule> &GetScheduledDispatchScheduleSet() { return this->dispatch_schedules; }
-	 * Get the vector of all scheduled dispatch slot
+	inline const std::vector<DispatchSchedule> &GetScheduledDispatchScheduleSet() const { return this->dispatch_schedules; }
-	 * @return  first scheduled dispatch
-	 */
-	inline const std::vector<uint32> &GetScheduledDispatch() const { return this->scheduled_dispatch; }
 
-	void SetScheduledDispatch(std::vector<uint32> dispatch_list);
+	inline uint GetScheduledDispatchScheduleCount() const { return (uint)this->dispatch_schedules.size(); }
-	void AddScheduledDispatch(uint32 offset);
-	void RemoveScheduledDispatch(uint32 offset);
-	void ClearScheduledDispatch() { this->scheduled_dispatch.clear(); }
-	void UpdateScheduledDispatch();
-	void ResetScheduledDispatch();
-
-	/**
-	 * Set the scheduled dispatch duration, in scaled tick
-	 * @param  duration  New duration
-	 */
-	inline void SetScheduledDispatchDuration(uint32 duration) { this->scheduled_dispatch_duration = duration; }
-
-	/**
-	 * Get the scheduled dispatch duration, in scaled tick
-	 * @return  scheduled dispatch duration
-	 */
-	inline uint32 GetScheduledDispatchDuration() const { return this->scheduled_dispatch_duration; }
-
-	/**
-	 * Set the scheduled dispatch start
-	 * @param  start New start date
-	 * @param  fract New start full date fraction, see \c CmdScheduledDispatchSetStartDate
-	 */
-	inline void SetScheduledDispatchStartDate(Date start_date, uint16 start_full_date_fract)
-	{
-		this->scheduled_dispatch_start_date = start_date;
-		this->scheduled_dispatch_start_full_date_fract = start_full_date_fract;
-	}
-
-	/**
-	 * Get the scheduled dispatch start date part
-	 * @return  scheduled dispatch start date part
-	 */
-	inline Date GetScheduledDispatchStartDatePart() const { return this->scheduled_dispatch_start_date; }
-
-	/**
-	 * Get the scheduled dispatch start date fract part
-	 * @return  scheduled dispatch start date fract part
-	 */
-	inline uint16 GetScheduledDispatchStartDateFractPart() const { return this->scheduled_dispatch_start_full_date_fract; }
-
-	/**
-	 * Get the scheduled dispatch start date, in absolute scaled tick
-	 * @return  scheduled dispatch start date
-	 */
-	inline DateTicksScaled GetScheduledDispatchStartTick() const { return SchdispatchConvertToScaledTick(this->scheduled_dispatch_start_date, this->scheduled_dispatch_start_full_date_fract); }
-
-	/**
-	 * Whether the scheduled dispatch setting is valid
-	 * @return  scheduled dispatch start date fraction
-	 */
-	inline bool IsScheduledDispatchValid() const { return this->scheduled_dispatch_start_date >= 0 && this->scheduled_dispatch_duration > 0; }
-
-	/**
-	 * Set the scheduled dispatch last dispatch offset, in scaled tick
-	 * @param  duration  New last dispatch offset
-	 */
-	inline void SetScheduledDispatchLastDispatch(int32 offset) { this->scheduled_dispatch_last_dispatch = offset; }
-
-	/**
-	 * Get the scheduled dispatch last dispatch offset, in scaled tick
-	 * @return  scheduled dispatch last dispatch
-	 */
-	inline int32 GetScheduledDispatchLastDispatch() const { return this->scheduled_dispatch_last_dispatch; }
-
-	/**
-	 * Set the scheduled dispatch maximum allowed delay, in scaled tick
-	 * @param  delay  New maximum allow delay
-	 */
-	inline void SetScheduledDispatchDelay(int32 delay) { this->scheduled_dispatch_max_delay = delay; }
-
-	/**
-	 * Get the scheduled dispatch maximum alowed delay, in scaled tick
-	 * @return  scheduled dispatch last dispatch
-	 */
-	inline int32 GetScheduledDispatchDelay() const { return this->scheduled_dispatch_max_delay; }
 
+	inline DispatchSchedule &GetDispatchScheduleByIndex(uint index) { return this->dispatch_schedules[index]; }
+	inline const DispatchSchedule &GetDispatchScheduleByIndex(uint index) const { return this->dispatch_schedules[index]; }
 };
 
 void ShiftOrderDates(int interval);

src/order_cmd.cpp

@@ -370,7 +370,7 @@ void Order::AssignOrder(const Order &other)
 	this->travel_time = other.travel_time;
 	this->max_speed   = other.max_speed;
 
-	if (other.extra != nullptr && (this->GetUnloadType() == OUFB_CARGO_TYPE_UNLOAD || this->GetLoadType() == OLFB_CARGO_TYPE_LOAD || other.extra->xdata != 0 || other.extra->xflags != 0)) {
+	if (other.extra != nullptr && (this->GetUnloadType() == OUFB_CARGO_TYPE_UNLOAD || this->GetLoadType() == OLFB_CARGO_TYPE_LOAD || other.extra->xdata != 0 || other.extra->xflags != 0 || other.extra->dispatch_index != 0)) {
 		this->AllocExtraInfo();
 		*(this->extra) = *(other.extra);
 	} else {
@@ -1894,6 +1894,9 @@ CommandCost CmdModifyOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 					if (order->IsWaitTimetabled() || order->GetWaitTime() > 0) {
 						DoCommandEx(tile, v->index | (MTF_WAIT_TIME << 28) | (1 << 31), 0, p3, flags, CMD_CHANGE_TIMETABLE);
 					}
+					if (order->IsScheduledDispatchOrder(false)) {
+						DoCommandEx(tile, v->index | (MTF_ASSIGN_SCHEDULE << 28), -1, p3, flags, CMD_CHANGE_TIMETABLE);
+					}
 				}
 				break;
 
@@ -2390,12 +2393,7 @@ CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
 				/* Copy over scheduled dispatch data */
 				assert(dst->orders.list != nullptr);
 				if (src->orders.list != nullptr) {
-					dst->orders.list->SetScheduledDispatchDuration(src->orders.list->GetScheduledDispatchDuration());
+					dst->orders.list->GetScheduledDispatchScheduleSet() = src->orders.list->GetScheduledDispatchScheduleSet();
-					dst->orders.list->SetScheduledDispatchDelay(src->orders.list->GetScheduledDispatchDelay());
-					dst->orders.list->SetScheduledDispatchStartDate(src->orders.list->GetScheduledDispatchStartDatePart(),
-							src->orders.list->GetScheduledDispatchStartDateFractPart());
-					dst->orders.list->SetScheduledDispatchLastDispatch(0);
-					dst->orders.list->SetScheduledDispatch(src->orders.list->GetScheduledDispatch());
 				}
 
 				/* Set automation bit if target has it. */
@@ -3223,8 +3221,10 @@ CommandCost CmdMassChangeOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 void ShiftOrderDates(int interval)
 {
 	for (OrderList *orderlist : OrderList::Iterate()) {
-		if (orderlist->GetScheduledDispatchStartDatePart() >= 0) {
+		for (DispatchSchedule &ds : orderlist->GetScheduledDispatchScheduleSet()) {
-			orderlist->SetScheduledDispatchStartDate(orderlist->GetScheduledDispatchStartDatePart() + interval, orderlist->GetScheduledDispatchStartDateFractPart());
+			if (ds.GetScheduledDispatchStartDatePart() >= 0) {
+				ds.SetScheduledDispatchStartDate(ds.GetScheduledDispatchStartDatePart() + interval, ds.GetScheduledDispatchStartDateFractPart());
+			}
 		}
 	}
 

src/order_gui.cpp

@@ -1057,8 +1057,10 @@ void DrawOrderString(const Vehicle *v, const Order *order, int order_index, int
 	if (timetable && timetable_wait_time_valid && order->GetLeaveType() != OLT_NORMAL && edge != 0) {
 		edge = DrawString(rtl ? left : edge + 3, rtl ? edge - 3 : right, y, STR_TIMETABLE_LEAVE_EARLY_ORDER + order->GetLeaveType() - OLT_LEAVE_EARLY, colour);
 	}
-	if (timetable && HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && v->GetFirstWaitingLocation(false) == order_index && edge != 0) {
+	if (timetable && HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && order->IsScheduledDispatchOrder(false) && edge != 0) {
 		StringID str = order->IsWaitTimetabled() ? STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER : STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME;
+		SetDParam(0, v->orders.list->GetScheduledDispatchScheduleCount() > 1 ? STR_TIMETABLE_SCHEDULED_DISPATCH_ORDER_SCHEDULE_INDEX : STR_EMPTY);
+		SetDParam(1, order->GetDispatchScheduleIndex() + 1);
 		edge = DrawString(rtl ? left : edge + 3, rtl ? edge - 3 : right, y, str, colour);
 	}
 

src/order_type.h

@@ -238,6 +238,7 @@ enum ModifyTimetableFlags {
 	MTF_SET_WAIT_FIXED,///< Set wait time fixed flag state.
 	MTF_SET_TRAVEL_FIXED,///< Set travel time fixed flag state.
 	MTF_SET_LEAVE_TYPE,///< Passes an OrderLeaveType.
+	MTF_ASSIGN_SCHEDULE, ///< Assign a dispatch schedule.
 	MTF_END
 };
 template <> struct EnumPropsT<ModifyTimetableFlags> : MakeEnumPropsT<ModifyTimetableFlags, byte, MTF_WAIT_TIME, MTF_END, MTF_END, 3> {};

src/saveload/afterload.cpp

@@ -3999,6 +3999,22 @@ bool AfterLoadGame()
 		_settings_game.vehicle.through_load_speed_limit = 15;
 	}
 
+	if (SlXvIsFeaturePresent(XSLFI_SCHEDULED_DISPATCH, 1, 2)) {
+		for (OrderList *order_list : OrderList::Iterate()) {
+			if (order_list->GetScheduledDispatchScheduleCount() == 1) {
+				const DispatchSchedule &ds = order_list->GetDispatchScheduleByIndex(0);
+				if (!ds.IsScheduledDispatchValid() && ds.GetScheduledDispatch().empty()) {
+					order_list->GetScheduledDispatchScheduleSet().clear();
+				} else {
+					VehicleOrderID idx = order_list->GetFirstSharedVehicle()->GetFirstWaitingLocation(false);
+					if (idx != INVALID_VEH_ORDER_ID) {
+						order_list->GetOrderAt(idx)->SetDispatchScheduleIndex(0);
+					}
+				}
+			}
+		}
+	}
+
 	InitializeRoadGUI();
 
 	/* This needs to be done after conversion. */

src/saveload/extended_ver_sl.cpp

@@ -109,7 +109,7 @@ const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
 	{ XSLFI_STATION_CATCHMENT_INC,  XSCF_NULL,                1,   1, "station_catchment_inc",     nullptr, nullptr, nullptr        },
 	{ XSLFI_CUSTOM_BRIDGE_HEADS,    XSCF_NULL,                4,   4, "custom_bridge_heads",       nullptr, nullptr, nullptr        },
 	{ XSLFI_CHUNNEL,                XSCF_NULL,                2,   2, "chunnel",                   nullptr, nullptr, "TUNN"      },
-	{ XSLFI_SCHEDULED_DISPATCH,     XSCF_NULL,                2,   2, "scheduled_dispatch",        nullptr, nullptr, nullptr        },
+	{ XSLFI_SCHEDULED_DISPATCH,     XSCF_NULL,                3,   3, "scheduled_dispatch",        nullptr, nullptr, nullptr        },
 	{ XSLFI_MORE_TOWN_GROWTH_RATES, XSCF_NULL,                1,   1, "more_town_growth_rates",    nullptr, nullptr, nullptr        },
 	{ XSLFI_MULTIPLE_DOCKS,         XSCF_NULL,                2,   2, "multiple_docks",            nullptr, nullptr, nullptr        },
 	{ XSLFI_TIMETABLE_EXTRA,        XSCF_NULL,                7,   7, "timetable_extra",           nullptr, nullptr, "ORDX"      },

src/saveload/order_sl.cpp

@@ -217,6 +217,7 @@ const SaveLoadTable GetOrderExtraInfoDescription()
 		SLE_CONDARR_X(OrderExtraInfo, cargo_type_flags, SLE_UINT8, NUM_CARGO, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_CARGO_TYPE_ORDERS, 3)),
 		SLE_CONDVAR_X(OrderExtraInfo, xflags,           SLE_UINT8,            SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_TIMETABLE_EXTRA)),
 		SLE_CONDVAR_X(OrderExtraInfo, xdata,           SLE_UINT32,            SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_ORDER_EXTRA_DATA)),
+		SLE_CONDVAR_X(OrderExtraInfo, dispatch_index,  SLE_UINT16,            SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 3)),
 	};
 
 	return _order_extra_info_desc;
@@ -255,16 +256,24 @@ static void Ptrs_ORDR()
 	}
 }
 
+SaveLoadTable GetDispatchScheduleDescription()
+{
+	static const SaveLoad _order_extra_info_desc[] = {
+		SLE_VARVEC(DispatchSchedule, scheduled_dispatch,                    SLE_UINT32),
+		SLE_VAR(DispatchSchedule, scheduled_dispatch_duration,              SLE_UINT32),
+		SLE_VAR(DispatchSchedule, scheduled_dispatch_start_date,            SLE_INT32),
+		SLE_VAR(DispatchSchedule, scheduled_dispatch_start_full_date_fract, SLE_UINT16),
+		SLE_VAR(DispatchSchedule, scheduled_dispatch_last_dispatch,         SLE_INT32),
+		SLE_VAR(DispatchSchedule, scheduled_dispatch_max_delay,             SLE_INT32),
+	};
+
+	return _order_extra_info_desc;
+}
+
 SaveLoadTable GetOrderListDescription()
 {
 	static const SaveLoad _orderlist_desc[] = {
 		      SLE_REF(OrderList, first,                                    REF_ORDER),
-		SLE_CONDVARVEC_X(OrderList, scheduled_dispatch,                    SLE_UINT32, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
-		SLE_CONDVAR_X(OrderList, scheduled_dispatch_duration,              SLE_UINT32, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
-		SLE_CONDVAR_X(OrderList, scheduled_dispatch_start_date,            SLE_INT32,  SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
-		SLE_CONDVAR_X(OrderList, scheduled_dispatch_start_full_date_fract, SLE_UINT16, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
-		SLE_CONDVAR_X(OrderList, scheduled_dispatch_last_dispatch,         SLE_INT32,  SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
-		SLE_CONDVAR_X(OrderList, scheduled_dispatch_max_delay,             SLE_INT32,  SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH)),
 		SLEG_CONDVAR_X(_jokerpp_separation_mode,                           SLE_UINT32, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_JOKERPP)),
 		SLE_CONDNULL_X(21,                                                             SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_JOKERPP)),
 	};
@@ -276,7 +285,14 @@ static void Save_ORDL()
 {
 	for (OrderList *list : OrderList::Iterate()) {
 		SlSetArrayIndex(list->index);
+		SlAutolength([](void *data) {
+			OrderList *list = static_cast<OrderList *>(data);
 			SlObject(list, GetOrderListDescription());
+			SlWriteUint32(list->GetScheduledDispatchScheduleCount());
+			for (DispatchSchedule &ds : list->GetScheduledDispatchScheduleSet()) {
+				SlObject(&ds, GetDispatchScheduleDescription());
+			}
+		}, list);
 	}
 }
 
@@ -297,8 +313,14 @@ static void Load_ORDL()
 				_jokerpp_non_auto_separation.push_back(list);
 			}
 		}
+		if (SlXvIsFeaturePresent(XSLFI_SCHEDULED_DISPATCH)) {
+			uint count = SlXvIsFeaturePresent(XSLFI_SCHEDULED_DISPATCH, 3) ? SlReadUint32() : 1;
+			list->GetScheduledDispatchScheduleSet().resize(count);
+			for (DispatchSchedule &ds : list->GetScheduledDispatchScheduleSet()) {
+				SlObject(&ds, GetDispatchScheduleDescription());
+			}
+		}
 	}
-
 }
 
 void Ptrs_ORDL()
@@ -330,17 +352,13 @@ SaveLoadTable GetOrderBackupDescription()
 		 SLE_CONDVAR(OrderBackup, vehicle_flags,            SLE_FILE_U8 | SLE_VAR_U16, SLV_176, SLV_180),
 		 SLE_CONDVAR(OrderBackup, vehicle_flags,            SLE_UINT16,                SLV_180, SL_MAX_VERSION),
 		     SLE_REF(OrderBackup, orders,                   REF_ORDER),
-		SLE_CONDVARVEC_X(OrderBackup, scheduled_dispatch,                    SLE_UINT32, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2)),
+		SLE_CONDNULL_X(18,                                                      SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2, 2)),
-		SLE_CONDVAR_X(OrderBackup, scheduled_dispatch_duration,              SLE_UINT32, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2)),
-		SLE_CONDVAR_X(OrderBackup, scheduled_dispatch_start_date,            SLE_INT32,  SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2)),
-		SLE_CONDVAR_X(OrderBackup, scheduled_dispatch_start_full_date_fract, SLE_UINT16, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2)),
-		SLE_CONDVAR_X(OrderBackup, scheduled_dispatch_max_delay,             SLE_INT32,  SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SCHEDULED_DISPATCH, 2)),
 	};
 
 	return _order_backup_desc;
 }
 
-static void Save_BKOR()
+void Save_BKOR()
 {
 	/* We only save this when we're a network server
 	 * as we want this information on our clients. For
@@ -349,7 +367,14 @@ static void Save_BKOR()
 
 	for (OrderBackup *ob : OrderBackup::Iterate()) {
 		SlSetArrayIndex(ob->index);
+		SlAutolength([](void *data) {
+			OrderBackup *ob = static_cast<OrderBackup *>(data);
 			SlObject(ob, GetOrderBackupDescription());
+			SlWriteUint32((uint)ob->dispatch_schedules.size());
+			for (DispatchSchedule &ds : ob->dispatch_schedules) {
+				SlObject(&ds, GetDispatchScheduleDescription());
+			}
+		}, ob);
 	}
 }
 
@@ -361,6 +386,13 @@ void Load_BKOR()
 		/* set num_orders to 0 so it's a valid OrderList */
 		OrderBackup *ob = new (index) OrderBackup();
 		SlObject(ob, GetOrderBackupDescription());
+		if (SlXvIsFeaturePresent(XSLFI_SCHEDULED_DISPATCH, 3)) {
+			uint count = SlReadUint32();
+			ob->dispatch_schedules.resize(count);
+			for (DispatchSchedule &ds : ob->dispatch_schedules) {
+				SlObject(&ds, GetDispatchScheduleDescription());
+			}
+		}
 	}
 }
 

src/saveload/saveload.h

@@ -327,6 +327,14 @@ DECLARE_ENUM_AS_BIT_SET(SaveLoadChunkExtHeaderFlags)
  */
 #define SLE_VEC(base, variable, type) SLE_CONDVEC(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
 
+/**
+ * Storage of a variable vector in every savegame version.
+ * @param base     Name of the class or struct containing the list.
+ * @param variable Name of the variable in the class or struct referenced by \a base.
+ * @param type     Storage of the data in memory and in the savegame.
+ */
+#define SLE_VARVEC(base, variable, type) SLE_CONDVARVEC(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
+
 /**
  * Empty space in every savegame version.
  * @param length Length of the empty space.

src/schdispatch_cmd.cpp

@@ -82,6 +82,7 @@ CommandCost CmdScheduledDispatch(TileIndex tile, DoCommandFlag flags, uint32 p1,
 CommandCost CmdScheduledDispatchAdd(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, uint64 p3, const char *text, uint32 binary_length)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 	uint32 offset = GB(p3, 0, 32);
 	uint32 extra_slots = GB(p3, 32, 16);
 
@@ -93,14 +94,17 @@ CommandCost CmdScheduledDispatchAdd(TileIndex tile, DoCommandFlag flags, uint32
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (extra_slots > 512) return_cmd_error(STR_ERROR_SCHDISPATCH_TRIED_TO_ADD_TOO_MANY_SLOTS);
 	if (extra_slots > 0 && offset == 0) return CMD_ERROR;
 
 	if (flags & DC_EXEC) {
-		v->orders.list->AddScheduledDispatch(p2);
+		DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(schedule_index);
+		ds.AddScheduledDispatch(p2);
 		for (uint i = 0; i < extra_slots; i++) {
 			p2 += offset;
-			v->orders.list->AddScheduledDispatch(p2);
+			ds.AddScheduledDispatch(p2);
 		}
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
@@ -120,6 +124,7 @@ CommandCost CmdScheduledDispatchAdd(TileIndex tile, DoCommandFlag flags, uint32
 CommandCost CmdScheduledDispatchRemove(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -129,8 +134,10 @@ CommandCost CmdScheduledDispatchRemove(TileIndex tile, DoCommandFlag flags, uint
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (flags & DC_EXEC) {
-		v->orders.list->RemoveScheduledDispatch(p2);
+		v->orders.list->GetDispatchScheduleByIndex(schedule_index).RemoveScheduledDispatch(p2);
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
@@ -150,6 +157,7 @@ CommandCost CmdScheduledDispatchRemove(TileIndex tile, DoCommandFlag flags, uint
 CommandCost CmdScheduledDispatchSetDuration(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -159,9 +167,12 @@ CommandCost CmdScheduledDispatchSetDuration(TileIndex tile, DoCommandFlag flags,
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (flags & DC_EXEC) {
-		v->orders.list->SetScheduledDispatchDuration(p2);
+		DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(schedule_index);
-		v->orders.list->UpdateScheduledDispatch();
+		ds.SetScheduledDispatchDuration(p2);
+		ds.UpdateScheduledDispatch();
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
@@ -173,23 +184,22 @@ CommandCost CmdScheduledDispatchSetDuration(TileIndex tile, DoCommandFlag flags,
  *
  * The parameter is quite tricky. The default maximum of daylength factor is 125,
  * and with DAY_TICKS of 74 the result (maximum scaled tick per day) fits in 14 bit.
- * Vehicle index in p1 takes 20 bit, so we have 12 bit here. The MSB of the fraction is stored here.
- * The 2-bit LSB is stored in MSB of p2, which is start date. The default date is stored in int32,
- * which only have topmost bit available. However, if the date reached 31 bits, that means it is over 1,000,000 years,
- * so I think it is safe to steal another bit here.
  *
  * See also the static_assert at the top of the file.
  *
  * @param tile Not used.
  * @param flags Operation to perform.
- * @param p1 MSB of Start Full Date Fraction || Vehicle index
+ * @param p1 Vehicle index
- * @param p2 LSB of Start Full Date Fraction || Date to add.
+ * @param p2 Date to add.
+ * @param p3 various bitstuffed elements
+ *  - p3 = (bit 0 - 15)  - Full date fraction
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdScheduledDispatchSetStartDate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdScheduledDispatchSetStartDate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, uint64 p3, const char *text, uint32 binary_length)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -199,12 +209,15 @@ CommandCost CmdScheduledDispatchSetStartDate(TileIndex tile, DoCommandFlag flags
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
-	int32 date = (int32) GB(p2, 0, 30);
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
-	uint16 full_date_fract = (GB(p1, 20, 12) << 2) + GB(p2, 30, 2);
+
+	int32 date = (int32)p2;
+	uint16 full_date_fract = GB(p3, 0, 16);
 
 	if (flags & DC_EXEC) {
-		v->orders.list->SetScheduledDispatchStartDate(date, full_date_fract);
+		DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(schedule_index);
-		v->orders.list->UpdateScheduledDispatch();
+		ds.SetScheduledDispatchStartDate(date, full_date_fract);
+		ds.UpdateScheduledDispatch();
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
@@ -224,6 +237,7 @@ CommandCost CmdScheduledDispatchSetStartDate(TileIndex tile, DoCommandFlag flags
 CommandCost CmdScheduledDispatchSetDelay(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -233,8 +247,10 @@ CommandCost CmdScheduledDispatchSetDelay(TileIndex tile, DoCommandFlag flags, ui
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (flags & DC_EXEC) {
-		v->orders.list->SetScheduledDispatchDelay(p2);
+		v->orders.list->GetDispatchScheduleByIndex(schedule_index).SetScheduledDispatchDelay(p2);
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
@@ -259,6 +275,7 @@ CommandCost CmdScheduledDispatchSetDelay(TileIndex tile, DoCommandFlag flags, ui
 CommandCost CmdScheduledDispatchResetLastDispatch(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -268,8 +285,10 @@ CommandCost CmdScheduledDispatchResetLastDispatch(TileIndex tile, DoCommandFlag
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (flags & DC_EXEC) {
-		v->orders.list->SetScheduledDispatchLastDispatch(0);
+		v->orders.list->GetDispatchScheduleByIndex(schedule_index).SetScheduledDispatchLastDispatch(0);
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
@@ -289,6 +308,7 @@ CommandCost CmdScheduledDispatchResetLastDispatch(TileIndex tile, DoCommandFlag
 CommandCost CmdScheduledDispatchClear(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 
 	Vehicle *v = Vehicle::GetIfValid(veh);
 	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
@@ -298,19 +318,106 @@ CommandCost CmdScheduledDispatchClear(TileIndex tile, DoCommandFlag flags, uint3
 
 	if (v->orders.list == nullptr) return CMD_ERROR;
 
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
 	if (flags & DC_EXEC) {
-		v->orders.list->ClearScheduledDispatch();
+		v->orders.list->GetDispatchScheduleByIndex(schedule_index).ClearScheduledDispatch();
 		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
 	}
 
 	return CommandCost();
 }
 
+/**
+ * Add a new scheduled dispatch schedule
+ *
+ * @param tile Not used.
+ * @param flags Operation to perform.
+ * @param p1 Vehicle index
+ * @param p2 Duration, in scaled tick
+ * @param p3 various bitstuffed elements
+ *  - p3 = (bit 0 - 31)  - Start date
+ *  - p3 = (bit 32 - 47) - Full date fraction
+ * @param text unused
+ * @return the cost of this operation or an error
+ */
+CommandCost CmdScheduledDispatchAddNewSchedule(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, uint64 p3, const char *text, uint32 binary_length)
+{
+	VehicleID veh = GB(p1, 0, 20);
+
+	Vehicle *v = Vehicle::GetIfValid(veh);
+	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+	CommandCost ret = CheckOwnership(v->owner);
+	if (ret.Failed()) return ret;
+
+	if (v->orders.list == nullptr) return CMD_ERROR;
+	if (v->orders.list->GetScheduledDispatchScheduleCount() >= 4096) return CMD_ERROR;
+
+	int32 date = GB(p3, 0, 32);
+	uint16 full_date_fract = GB(p3, 32, 16);
+
+	if (flags & DC_EXEC) {
+		v->orders.list->GetScheduledDispatchScheduleSet().emplace_back();
+		DispatchSchedule &ds = v->orders.list->GetScheduledDispatchScheduleSet().back();
+		ds.SetScheduledDispatchDuration(p2);
+		ds.SetScheduledDispatchStartDate(date, full_date_fract);
+		ds.UpdateScheduledDispatch();
+		SetWindowClassesDirty(WC_VEHICLE_TIMETABLE);
+		SetWindowDirty(WC_SCHDISPATCH_SLOTS, v->index);
+	}
+
+	return CommandCost();
+}
+
+/**
+ * Remove scheduled dispatch schedule
+ *
+ * @param tile Not used.
+ * @param flags Operation to perform.
+ * @param p1 Vehicle index
+ * @param p2 Not used
+ * @param text unused
+ * @return the cost of this operation or an error
+ */
+CommandCost CmdScheduledDispatchRemoveSchedule(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+{
+	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
+
+	Vehicle *v = Vehicle::GetIfValid(veh);
+	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+	CommandCost ret = CheckOwnership(v->owner);
+	if (ret.Failed()) return ret;
+
+	if (v->orders.list == nullptr) return CMD_ERROR;
+
+	if (schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
+	if (flags & DC_EXEC) {
+		std::vector<DispatchSchedule> &scheds = v->orders.list->GetScheduledDispatchScheduleSet();
+		scheds.erase(scheds.begin() + schedule_index);
+		for (Order *o = v->GetFirstOrder(); o != nullptr; o = o->next) {
+			int idx = o->GetDispatchScheduleIndex();
+			if (idx == (int)schedule_index) {
+				o->SetDispatchScheduleIndex(-1);
+			} else if (idx > (int)schedule_index) {
+				o->SetDispatchScheduleIndex(idx - 1);
+			}
+		}
+		SetWindowClassesDirty(WC_VEHICLE_TIMETABLE);
+		InvalidateWindowClassesData(WC_SCHDISPATCH_SLOTS, VIWD_MODIFY_ORDERS);
+	}
+
+	return CommandCost();
+}
+
 /**
  * Set scheduled dispatch slot list.
  * @param dispatch_list The offset time list, must be correctly sorted.
  */
-void OrderList::SetScheduledDispatch(std::vector<uint32> dispatch_list)
+void DispatchSchedule::SetScheduledDispatch(std::vector<uint32> dispatch_list)
 {
 	this->scheduled_dispatch = std::move(dispatch_list);
 	assert(std::is_sorted(this->scheduled_dispatch.begin(), this->scheduled_dispatch.end()));
@@ -321,7 +428,7 @@ void OrderList::SetScheduledDispatch(std::vector<uint32> dispatch_list)
  * Add new scheduled dispatch slot at offsets time.
  * @param offset The offset time to add.
  */
-void OrderList::AddScheduledDispatch(uint32 offset)
+void DispatchSchedule::AddScheduledDispatch(uint32 offset)
 {
 	/* Maintain sorted list status */
 	auto insert_position = std::lower_bound(this->scheduled_dispatch.begin(), this->scheduled_dispatch.end(), offset);
@@ -336,7 +443,7 @@ void OrderList::AddScheduledDispatch(uint32 offset)
  * Remove scheduled dispatch slot at offsets time.
  * @param offset The offset time to remove.
  */
-void OrderList::RemoveScheduledDispatch(uint32 offset)
+void DispatchSchedule::RemoveScheduledDispatch(uint32 offset)
 {
 	/* Maintain sorted list status */
 	auto erase_position = std::lower_bound(this->scheduled_dispatch.begin(), this->scheduled_dispatch.end(), offset);
@@ -349,7 +456,7 @@ void OrderList::RemoveScheduledDispatch(uint32 offset)
 /**
  * Update the scheduled dispatch start time to be the most recent possible.
  */
-void OrderList::UpdateScheduledDispatch()
+void DispatchSchedule::UpdateScheduledDispatch()
 {
 	bool update_windows = false;
 	if (this->GetScheduledDispatchStartTick() == 0) {
@@ -388,45 +495,3 @@ void OrderList::UpdateScheduledDispatch()
 	}
 	if (update_windows) InvalidateWindowClassesData(WC_SCHDISPATCH_SLOTS, VIWD_MODIFY_ORDERS);
 }
-
-/**
- * Reset the scheduled dispatch schedule.
- *
- * This only occurs during initialization of the scheduled dispatch for each shared order. Basically we set
- * proper default value for start time and duration
- */
-void OrderList::ResetScheduledDispatch()
-{
-	uint32 windex = this->first_shared->index;
-
-	Date start_date;
-	uint16 start_full_date_fract;
-	uint32 duration;
-
-	if (_settings_time.time_in_minutes) {
-		/* Set to 00:00 of today, and 1 day */
-
-		DateTicksScaled val;
-		val = MINUTES_DATE(MINUTES_DAY(CURRENT_MINUTE), 0, 0);
-		val -= _settings_time.clock_offset;
-		val *= _settings_time.ticks_per_minute;
-		SchdispatchConvertToFullDateFract(val, &start_date, &start_full_date_fract);
-
-		duration = 24 * 60 * _settings_time.ticks_per_minute;
-	} else {
-		/* Set Jan 1st and 365 day */
-		start_date = DAYS_TILL(_cur_year);
-		start_full_date_fract = 0;
-		duration = 365*DAY_TICKS;
-	}
-
-	DoCommandP(0, windex, duration, CMD_SCHEDULED_DISPATCH_SET_DURATION | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
-
-	uint32 p1 = 0, p2 = 0;
-	SB(p1, 0, 20, windex);
-	SB(p1, 20, 12, GB(start_full_date_fract, 2, 12));
-	SB(p2, 0, 30, start_date);
-	SB(p2, 30, 2, GB(start_full_date_fract, 0, 2));
-
-	DoCommandP(0, p1, p2, CMD_SCHEDULED_DISPATCH_SET_START_DATE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
-}

src/schdispatch_gui.cpp

@@ -43,6 +43,11 @@ enum SchdispatchWidgets {
     WID_SCHDISPATCH_SUMMARY_PANEL,   ///< Summary panel
 
 	WID_SCHDISPATCH_ENABLED,         ///< Enable button.
+	WID_SCHDISPATCH_HEADER,          ///< Header text.
+	WID_SCHDISPATCH_PREV,            ///< Previous schedule.
+	WID_SCHDISPATCH_NEXT,            ///< Next schedule.
+	WID_SCHDISPATCH_ADD_SCHEDULE,    ///< Add schedule.
+
 	WID_SCHDISPATCH_ADD,             ///< Add Departure Time button
 	WID_SCHDISPATCH_SET_DURATION,    ///< Duration button
 	WID_SCHDISPATCH_SET_START_DATE,  ///< Start Date button
@@ -52,22 +57,16 @@ enum SchdispatchWidgets {
 
 /**
  * Callback for when a time has been chosen to start the schedule
- * @param windex The windows index
+ * @param p1 The p1 parameter to send to CmdScheduledDispatchSetStartDate
  * @param date the actually chosen date
  */
-static void SetScheduleStartDateIntl(uint32 windex, DateTicksScaled date)
+static void SetScheduleStartDateIntl(uint32 p1, DateTicksScaled date)
 {
 	Date start_date;
 	uint16 start_full_date_fract;
 	SchdispatchConvertToFullDateFract(date, &start_date, &start_full_date_fract);
 
-	uint32 p1 = 0, p2 = 0;
+	DoCommandPEx(0, p1, start_date, start_full_date_fract, CMD_SCHEDULED_DISPATCH_SET_START_DATE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE), nullptr, nullptr, 0);
-	SB(p1, 0, 20, windex);
-	SB(p1, 20, 12, GB(start_full_date_fract, 2, 12));
-	SB(p2, 0, 30, start_date);
-	SB(p2, 30, 2, GB(start_full_date_fract, 0, 2));
-
-	DoCommandP(0, p1, p2, CMD_SCHEDULED_DISPATCH_SET_START_DATE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 }
 
 /**
@@ -88,12 +87,15 @@ static void SetScheduleStartDateCallback(const Window *w, DateTicksScaled date)
 static void ScheduleAddIntl(uint32 p1, DateTicksScaled date, uint extra_slots, uint offset)
 {
 	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
 	Vehicle *v = Vehicle::GetIfValid(veh);
-	if (v == nullptr || !v->IsPrimaryVehicle()) return;
+	if (v == nullptr || !v->IsPrimaryVehicle() || schedule_index >= v->orders.list->GetScheduledDispatchScheduleCount()) return;
+
+	const DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(schedule_index);
 
 	/* Make sure the time is the closest future to the timetable start */
-	DateTicksScaled start_tick = v->orders.list->GetScheduledDispatchStartTick();
+	DateTicksScaled start_tick = ds.GetScheduledDispatchStartTick();
-	uint32 duration = v->orders.list->GetScheduledDispatchDuration();
+	uint32 duration = ds.GetScheduledDispatchDuration();
 	while (date > start_tick) date -= duration;
 	while (date < start_tick) date += duration;
 
@@ -104,7 +106,7 @@ static void ScheduleAddIntl(uint32 p1, DateTicksScaled date, uint extra_slots, u
 		extra_slots = std::min<uint>(extra_slots, UINT16_MAX);
 	}
 
-	DoCommandPEx(0, v->index, (uint32)(date - start_tick), (((uint64)extra_slots) << 32) | offset, CMD_SCHEDULED_DISPATCH_ADD | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE), nullptr, nullptr, 0);
+	DoCommandPEx(0, p1, (uint32)(date - start_tick), (((uint64)extra_slots) << 32) | offset, CMD_SCHEDULED_DISPATCH_ADD | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE), nullptr, nullptr, 0);
 }
 
 /**
@@ -152,8 +154,39 @@ static int CalculateMaxRequiredVehicle(Ticks timetable_duration, uint32 schedule
 	return vehicle_count;
 }
 
+static void AddNewScheduledDispatchSchedule(VehicleID vindex)
+{
+	Date start_date;
+	uint16 start_full_date_fract;
+	uint32 duration;
+
+	if (_settings_time.time_in_minutes) {
+		/* Set to 00:00 of today, and 1 day */
+
+		DateTicksScaled val;
+		val = MINUTES_DATE(MINUTES_DAY(CURRENT_MINUTE), 0, 0);
+		val -= _settings_time.clock_offset;
+		val *= _settings_time.ticks_per_minute;
+		SchdispatchConvertToFullDateFract(val, &start_date, &start_full_date_fract);
+
+		duration = 24 * 60 * _settings_time.ticks_per_minute;
+	} else {
+		/* Set Jan 1st and 365 day */
+		start_date = DAYS_TILL(_cur_year);
+		start_full_date_fract = 0;
+		duration = 365 * DAY_TICKS;
+	}
+
+	uint64 p3 = 0;
+	SB(p3, 0, 32, start_date);
+	SB(p3, 32, 16, start_full_date_fract);
+
+	DoCommandPEx(0, vindex, duration, p3, CMD_SCHEDULED_DISPATCH_ADD_NEW_SCHEDULE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE), CcAddNewSchDispatchSchedule, nullptr, 0);
+}
+
 struct SchdispatchWindow : Window {
 	const Vehicle *vehicle; ///< Vehicle monitored by the window.
+	int schedule_index;
 	int clicked_widget;     ///< The widget that was clicked (used to determine what to do in OnQueryTextFinished)
 	Scrollbar *vscroll;     ///< Verticle scrollbar
 	uint num_columns;       ///< Number of columns.
@@ -171,6 +204,8 @@ struct SchdispatchWindow : Window {
 		this->FinishInitNested(window_number);
 
 		this->owner = this->vehicle->owner;
+		this->schedule_index = -1;
+		this->AutoSelectSchedule();
 	}
 
 	~SchdispatchWindow()
@@ -188,8 +223,30 @@ struct SchdispatchWindow : Window {
 	enum ManagementDropdown {
 		SCH_MD_RESET_LAST_DISPATCHED,
 		SCH_MD_CLEAR_SCHEDULE,
+		SCH_MD_REMOVE_SCHEDULE,
 	};
 
+	bool IsScheduleSelected() const
+	{
+		return this->vehicle->orders.list != nullptr && this->schedule_index >= 0 && (uint)this->schedule_index < this->vehicle->orders.list->GetScheduledDispatchScheduleCount();
+	}
+
+	void AutoSelectSchedule()
+	{
+		if (!this->IsScheduleSelected()) {
+			if (this->vehicle->orders.list != nullptr && this->vehicle->orders.list->GetScheduledDispatchScheduleCount() > 0) {
+				this->schedule_index = Clamp<int>(this->schedule_index, 0, this->vehicle->orders.list->GetScheduledDispatchScheduleCount() - 1);
+			} else {
+				this->schedule_index = -1;
+			}
+		}
+	}
+
+	const DispatchSchedule &GetSelectedSchedule() const
+	{
+		return this->vehicle->orders.list->GetDispatchScheduleByIndex(this->schedule_index);
+	}
+
 	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
 	{
 		switch (widget) {
@@ -232,8 +289,8 @@ struct SchdispatchWindow : Window {
 	void CountItem()
 	{
 		this->item_count = 0;
-		if (this->vehicle->orders.list != nullptr) {
+		if (this->IsScheduleSelected()) {
-			this->item_count = (uint)this->vehicle->orders.list->GetScheduledDispatch().size();
+			this->item_count = (uint)this->GetSelectedSchedule().GetScheduledDispatch().size();
 		}
 	}
 
@@ -247,6 +304,7 @@ struct SchdispatchWindow : Window {
 		switch (data) {
 			case VIWD_MODIFY_ORDERS:
 				if (!gui_scope) break;
+				this->AutoSelectSchedule();
 				this->ReInit();
 				break;
 		}
@@ -257,9 +315,15 @@ struct SchdispatchWindow : Window {
 		const Vehicle *v = this->vehicle;
 		CountItem();
 
-		this->SetWidgetDisabledState(WID_SCHDISPATCH_ENABLED, (v->owner != _local_company) || HasBit(v->vehicle_flags, VF_TIMETABLE_SEPARATION));
+		bool unusable = (v->owner != _local_company) || (v->orders.list == nullptr);
 
-		bool disabled = (v->owner != _local_company) || !HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) || (v->orders.list == nullptr);
+		this->SetWidgetDisabledState(WID_SCHDISPATCH_ENABLED, unusable || HasBit(v->vehicle_flags, VF_TIMETABLE_SEPARATION));
+
+		this->SetWidgetDisabledState(WID_SCHDISPATCH_PREV, v->orders.list == nullptr || this->schedule_index <= 0);
+		this->SetWidgetDisabledState(WID_SCHDISPATCH_NEXT, v->orders.list == nullptr || this->schedule_index >= (int)(v->orders.list->GetScheduledDispatchScheduleCount() - 1));
+		this->SetWidgetDisabledState(WID_SCHDISPATCH_ADD_SCHEDULE, unusable || v->orders.list->GetScheduledDispatchScheduleCount() >= 4096);
+
+		bool disabled = unusable || !HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)  || !this->IsScheduleSelected();
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_ADD, disabled);
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_SET_DURATION, disabled);
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_SET_START_DATE, disabled);
@@ -275,7 +339,19 @@ struct SchdispatchWindow : Window {
 	virtual void SetStringParameters(int widget) const override
 	{
 		switch (widget) {
-			case WID_SCHDISPATCH_CAPTION: SetDParam(0, this->vehicle->index); break;
+			case WID_SCHDISPATCH_CAPTION:
+				SetDParam(0, this->vehicle->index);
+				break;
+
+			case WID_SCHDISPATCH_HEADER:
+				if (this->IsScheduleSelected()) {
+					SetDParam(0, STR_SCHDISPATCH_SCHEDULE_ID);
+					SetDParam(1, this->schedule_index + 1);
+					SetDParam(2, this->vehicle->orders.list->GetScheduledDispatchScheduleCount());
+				} else {
+					SetDParam(0, STR_SCHDISPATCH_NO_SCHEDULES);
+				}
+				break;
 		}
 	}
 
@@ -293,10 +369,11 @@ struct SchdispatchWindow : Window {
 			}
 
 			case WID_SCHDISPATCH_MANAGEMENT: {
-				uint64 params[2];
+				uint64 params[3];
 				params[0] = STR_SCHDISPATCH_RESET_LAST_DISPATCH_TOOLTIP;
 				params[1] = STR_SCHDISPATCH_CLEAR_TOOLTIP;
-				GuiShowTooltips(this, STR_SCHDISPATCH_MANAGE_TOOLTIP, 2, params, close_cond);
+				params[2] = STR_SCHDISPATCH_REMOVE_SCHEDULE_TOOLTIP;
+				GuiShowTooltips(this, STR_SCHDISPATCH_MANAGE_TOOLTIP, 3, params, close_cond);
 				return true;
 			}
 
@@ -332,9 +409,9 @@ struct SchdispatchWindow : Window {
 
 	virtual void OnGameTick() override
 	{
-		const Vehicle *v = this->vehicle;
+		if (HasBit(this->vehicle->vehicle_flags, VF_SCHEDULED_DISPATCH) && this->IsScheduleSelected()) {
-		if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && v->orders.list != nullptr) {
+			const DispatchSchedule &ds = this->GetSelectedSchedule();
-			if (((v->orders.list->GetScheduledDispatchStartTick() + v->orders.list->GetScheduledDispatchLastDispatch()) > _scaled_date_ticks) != this->last_departure_future) {
+			if (((ds.GetScheduledDispatchStartTick() + ds.GetScheduledDispatchLastDispatch()) > _scaled_date_ticks) != this->last_departure_future) {
 				SetWidgetDirty(WID_SCHDISPATCH_SUMMARY_PANEL);
 			}
 		}
@@ -347,7 +424,7 @@ struct SchdispatchWindow : Window {
 		switch (widget) {
 			case WID_SCHDISPATCH_MATRIX: {
 				/* If order is not initialized, don't draw */
-				if (v->orders.list == nullptr) break;
+				if (!this->IsScheduleSelected()) break;
 
 				bool rtl = _current_text_dir == TD_RTL;
 
@@ -355,19 +432,21 @@ struct SchdispatchWindow : Window {
 				const NWidgetCore *wid = this->GetWidget<NWidgetCore>(WID_SCHDISPATCH_MATRIX);
 				const uint16 rows_in_display = wid->current_y / wid->resize_y;
 
+				const DispatchSchedule &ds = this->GetSelectedSchedule();
+
 				uint num = this->vscroll->GetPosition() * this->num_columns;
-				if (num >= v->orders.list->GetScheduledDispatch().size()) break;
+				if (num >= ds.GetScheduledDispatch().size()) break;
 
 				const uint maxval = std::min<uint>(this->item_count, num + (rows_in_display * this->num_columns));
 
-				auto current_schedule = v->orders.list->GetScheduledDispatch().begin() + num;
+				auto current_schedule = ds.GetScheduledDispatch().begin() + num;
-				const DateTicksScaled start_tick = v->orders.list->GetScheduledDispatchStartTick();
+				const DateTicksScaled start_tick = ds.GetScheduledDispatchStartTick();
-				const DateTicksScaled end_tick = v->orders.list->GetScheduledDispatchStartTick() + v->orders.list->GetScheduledDispatchDuration();
+				const DateTicksScaled end_tick = ds.GetScheduledDispatchStartTick() + ds.GetScheduledDispatchDuration();
 
 				for (int y = r.top + 1; num < maxval; y += this->resize.step_height) { /* Draw the rows */
 					for (byte i = 0; i < this->num_columns && num < maxval; i++, num++) {
 						/* Draw all departure time in the current row */
-						if (current_schedule != v->orders.list->GetScheduledDispatch().end()) {
+						if (current_schedule != ds.GetScheduledDispatch().end()) {
 							int x = r.left + (rtl ? (this->num_columns - i - 1) : i) * this->resize.step_width;
 							DateTicksScaled draw_time = start_tick + *current_schedule;
 							this->DrawScheduledTime(draw_time, x, x + this->resize.step_width - 1, y, draw_time >= end_tick ? TC_RED : TC_BLACK);
@@ -381,15 +460,14 @@ struct SchdispatchWindow : Window {
 			}
 
 			case WID_SCHDISPATCH_SUMMARY_PANEL: {
-
 				int y = r.top + WD_FRAMERECT_TOP;
 
-				if (!HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) || v->orders.list == nullptr) {
+				if (!HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) || !this->IsScheduleSelected()) {
 					y += FONT_HEIGHT_NORMAL;
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_SCHDISPATCH_SUMMARY_NOT_ENABLED);
 				} else {
-
+					const DispatchSchedule &ds = this->GetSelectedSchedule();
-					const DateTicksScaled last_departure = v->orders.list->GetScheduledDispatchStartTick() + v->orders.list->GetScheduledDispatchLastDispatch();
+					const DateTicksScaled last_departure = ds.GetScheduledDispatchStartTick() + ds.GetScheduledDispatchLastDispatch();
 					SetDParam(0, last_departure);
 					const_cast<SchdispatchWindow*>(this)->last_departure_future = (last_departure > _scaled_date_ticks);
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y,
@@ -404,7 +482,7 @@ struct SchdispatchWindow : Window {
 						}
 					}
 					if (!have_conditional) {
-						const int required_vehicle = CalculateMaxRequiredVehicle(v->orders.list->GetTimetableTotalDuration(), v->orders.list->GetScheduledDispatchDuration(), v->orders.list->GetScheduledDispatch());
+						const int required_vehicle = CalculateMaxRequiredVehicle(v->orders.list->GetTimetableTotalDuration(), ds.GetScheduledDispatchDuration(), ds.GetScheduledDispatch());
 						if (required_vehicle > 0) {
 							SetDParam(0, required_vehicle);
 							DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_SCHDISPATCH_SUMMARY_L1);
@@ -412,16 +490,16 @@ struct SchdispatchWindow : Window {
 					}
 					y += FONT_HEIGHT_NORMAL;
 
-					SetTimetableParams(0, v->orders.list->GetScheduledDispatchDuration(), true);
+					SetTimetableParams(0, ds.GetScheduledDispatchDuration(), true);
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_SCHDISPATCH_SUMMARY_L2);
 					y += FONT_HEIGHT_NORMAL;
 
-					SetDParam(0, v->orders.list->GetScheduledDispatchStartTick());
+					SetDParam(0, ds.GetScheduledDispatchStartTick());
-					SetDParam(1, v->orders.list->GetScheduledDispatchStartTick() + v->orders.list->GetScheduledDispatchDuration());
+					SetDParam(1, ds.GetScheduledDispatchStartTick() + ds.GetScheduledDispatchDuration());
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_SCHDISPATCH_SUMMARY_L3);
 					y += FONT_HEIGHT_NORMAL;
 
-					SetTimetableParams(0, v->orders.list->GetScheduledDispatchDelay());
+					SetTimetableParams(0, ds.GetScheduledDispatchDelay());
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_SCHDISPATCH_SUMMARY_L4);
 					y += FONT_HEIGHT_NORMAL;
 
@@ -443,8 +521,8 @@ struct SchdispatchWindow : Window {
 						warnings++;
 					};
 
-					uint32 duration = v->orders.list->GetScheduledDispatchDuration();
+					uint32 duration = ds.GetScheduledDispatchDuration();
-					for (uint32 slot : v->orders.list->GetScheduledDispatch()) {
+					for (uint32 slot : ds.GetScheduledDispatch()) {
 						if (slot >= duration) {
 							draw_warning(STR_SCHDISPATCH_SLOT_OUTSIDE_SCHEDULE);
 							break;
@@ -470,6 +548,8 @@ struct SchdispatchWindow : Window {
 	 */
 	void TimeClick(int x, int y)
 	{
+		if (!this->IsScheduleSelected()) return;
+
 		const NWidgetCore *matrix_widget = this->GetWidget<NWidgetCore>(WID_SCHDISPATCH_MATRIX);
 		/* In case of RTL the widgets are swapped as a whole */
 		if (_current_text_dir == TD_RTL) x = matrix_widget->current_x - x;
@@ -484,10 +564,12 @@ struct SchdispatchWindow : Window {
 
 		uint pos = ((row + this->vscroll->GetPosition()) * this->num_columns) + xt;
 
-		if (pos >= this->item_count) return;
+		const DispatchSchedule &ds = this->GetSelectedSchedule();
+
+		if (pos >= this->item_count || pos >= ds.GetScheduledDispatch().size()) return;
 
 		if (xm <= this->header_width) {
-			DoCommandP(0, this->vehicle->index, this->vehicle->orders.list->GetScheduledDispatch()[pos], CMD_SCHEDULED_DISPATCH_REMOVE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+			DoCommandP(0, this->vehicle->index | (this->schedule_index << 20), ds.GetScheduledDispatch()[pos], CMD_SCHEDULED_DISPATCH_REMOVE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 		}
 	}
 
@@ -522,30 +604,35 @@ struct SchdispatchWindow : Window {
 				uint32 p2 = 0;
 				if (!HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) SetBit(p2, 0);
 
-				if (!v->orders.list->IsScheduledDispatchValid()) v->orders.list->ResetScheduledDispatch();
 				DoCommandP(0, v->index, p2, CMD_SCHEDULED_DISPATCH | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+				if (HasBit(p2, 0) && this->vehicle->orders.list != nullptr && this->vehicle->orders.list->GetScheduledDispatchScheduleCount() == 0) {
+					AddNewScheduledDispatchSchedule(v->index);
+				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_ADD: {
+				if (!this->IsScheduleSelected()) break;
 				if (_settings_time.time_in_minutes && _ctrl_pressed) {
 					void ShowScheduledDispatchAddSlotsWindow(SchdispatchWindow *parent, int window_number);
 					ShowScheduledDispatchAddSlotsWindow(this, v->index);
 				} else if (_settings_time.time_in_minutes && _settings_client.gui.timetable_start_text_entry) {
 					ShowQueryString(STR_EMPTY, STR_SCHDISPATCH_ADD_CAPTION, 31, this, CS_NUMERAL, QSF_NONE);
 				} else {
-					ShowSetDateWindow(this, v->index, _scaled_date_ticks, _cur_year, _cur_year + 15, ScheduleAddCallback, STR_SCHDISPATCH_ADD, STR_SCHDISPATCH_ADD_TOOLTIP);
+					ShowSetDateWindow(this, v->index | (this->schedule_index << 20), _scaled_date_ticks, _cur_year, _cur_year + 15, ScheduleAddCallback, STR_SCHDISPATCH_ADD, STR_SCHDISPATCH_ADD_TOOLTIP);
 				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_DURATION: {
-				SetDParam(0, ProcessDurationForQueryString(v->orders.list->GetScheduledDispatchDuration()));
+				if (!this->IsScheduleSelected()) break;
+				SetDParam(0, ProcessDurationForQueryString(this->GetSelectedSchedule().GetScheduledDispatchDuration()));
 				ShowQueryString(STR_JUST_INT, STR_SCHDISPATCH_DURATION_CAPTION_MINUTE + this->GetQueryStringCaptionOffset(), 31, this, CS_NUMERAL, QSF_NONE);
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_START_DATE: {
+				if (!this->IsScheduleSelected()) break;
 				if (_settings_time.time_in_minutes && _settings_client.gui.timetable_start_text_entry) {
 					uint64 time = _scaled_date_ticks;
 					time /= _settings_time.ticks_per_minute;
@@ -555,24 +642,43 @@ struct SchdispatchWindow : Window {
 					SetDParam(0, time);
 					ShowQueryString(STR_JUST_INT, STR_SCHDISPATCH_START_CAPTION_MINUTE, 31, this, CS_NUMERAL, QSF_ACCEPT_UNCHANGED);
 				} else {
-					ShowSetDateWindow(this, v->index, _scaled_date_ticks, _cur_year, _cur_year + 15, SetScheduleStartDateCallback, STR_SCHDISPATCH_SET_START, STR_SCHDISPATCH_START_TOOLTIP);
+					ShowSetDateWindow(this, v->index | (this->schedule_index << 20), _scaled_date_ticks, _cur_year, _cur_year + 15, SetScheduleStartDateCallback, STR_SCHDISPATCH_SET_START, STR_SCHDISPATCH_START_TOOLTIP);
 				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_DELAY: {
-				SetDParam(0, ProcessDurationForQueryString(v->orders.list->GetScheduledDispatchDelay()));
+				if (!this->IsScheduleSelected()) break;
+				SetDParam(0, ProcessDurationForQueryString(this->GetSelectedSchedule().GetScheduledDispatchDelay()));
 				ShowQueryString(STR_JUST_INT, STR_SCHDISPATCH_DELAY_CAPTION_MINUTE + this->GetQueryStringCaptionOffset(), 31, this, CS_NUMERAL, QSF_NONE);
 				break;
 			}
 
 			case WID_SCHDISPATCH_MANAGEMENT: {
+				if (!this->IsScheduleSelected()) break;
 				DropDownList list;
 				list.emplace_back(new DropDownListStringItem(STR_SCHDISPATCH_RESET_LAST_DISPATCH, SCH_MD_RESET_LAST_DISPATCHED, false));
 				list.emplace_back(new DropDownListStringItem(STR_SCHDISPATCH_CLEAR, SCH_MD_CLEAR_SCHEDULE, false));
+				list.emplace_back(new DropDownListStringItem(STR_SCHDISPATCH_REMOVE_SCHEDULE, SCH_MD_REMOVE_SCHEDULE, false));
 				ShowDropDownList(this, std::move(list), -1, WID_SCHDISPATCH_MANAGEMENT);
 				break;
 			}
+
+			case WID_SCHDISPATCH_PREV:
+				if (!this->IsScheduleSelected()) break;
+				if (this->schedule_index > 0) this->schedule_index--;
+				this->ReInit();
+				break;
+
+			case WID_SCHDISPATCH_NEXT:
+				if (!this->IsScheduleSelected()) break;
+				if (this->schedule_index < (int)(this->vehicle->orders.list->GetScheduledDispatchScheduleCount() - 1)) this->schedule_index++;
+				this->ReInit();
+				break;
+
+			case WID_SCHDISPATCH_ADD_SCHEDULE:
+				AddNewScheduledDispatchSchedule(this->vehicle->index);
+				break;
 		}
 
 		this->SetDirty();
@@ -582,13 +688,18 @@ struct SchdispatchWindow : Window {
 	{
 		switch (widget) {
 			case WID_SCHDISPATCH_MANAGEMENT: {
+				if (!this->IsScheduleSelected()) break;
 				switch((ManagementDropdown)index) {
 					case SCH_MD_RESET_LAST_DISPATCHED:
-						DoCommandP(0, this->vehicle->index, 0, CMD_SCHEDULED_DISPATCH_RESET_LAST_DISPATCH | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+						DoCommandP(0, this->vehicle->index | (this->schedule_index << 20), 0, CMD_SCHEDULED_DISPATCH_RESET_LAST_DISPATCH | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 						break;
 
 					case SCH_MD_CLEAR_SCHEDULE:
-						DoCommandP(0, this->vehicle->index, 0, CMD_SCHEDULED_DISPATCH_CLEAR | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+						DoCommandP(0, this->vehicle->index | (this->schedule_index << 20), 0, CMD_SCHEDULED_DISPATCH_CLEAR | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+						break;
+
+					case SCH_MD_REMOVE_SCHEDULE:
+						DoCommandP(0, this->vehicle->index | (this->schedule_index << 20), 0, CMD_SCHEDULED_DISPATCH_REMOVE_SCHEDULE | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 						break;
 				}
 			}
@@ -607,6 +718,7 @@ struct SchdispatchWindow : Window {
 			default: NOT_REACHED();
 
 			case WID_SCHDISPATCH_ADD: {
+				if (!this->IsScheduleSelected()) break;
 				char *end;
 				int32 val = StrEmpty(str) ? -1 : strtoul(str, &end, 10);
 
@@ -616,12 +728,13 @@ struct SchdispatchWindow : Window {
 					DateTicksScaled slot = MINUTES_DATE(MINUTES_DAY(CURRENT_MINUTE), hours, minutes);
 					slot -= _settings_time.clock_offset;
 					slot *= _settings_time.ticks_per_minute;
-					ScheduleAddIntl(v->index, slot, 0, 0);
+					ScheduleAddIntl(v->index | (this->schedule_index << 20), slot, 0, 0);
 				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_START_DATE: {
+				if (!this->IsScheduleSelected()) break;
 				char *end;
 				int32 val = StrEmpty(str) ? -1 : strtoul(str, &end, 10);
 
@@ -631,30 +744,32 @@ struct SchdispatchWindow : Window {
 					DateTicksScaled start = MINUTES_DATE(MINUTES_DAY(CURRENT_MINUTE), hours, minutes);
 					start -= _settings_time.clock_offset;
 					start *= _settings_time.ticks_per_minute;
-					SetScheduleStartDateIntl(v->index, start);
+					SetScheduleStartDateIntl(v->index | (this->schedule_index << 20), start);
 				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_DURATION: {
+				if (!this->IsScheduleSelected()) break;
 				int32 val = StrEmpty(str) ? 0 : strtoul(str, nullptr, 10);
 
 				if (val > 0) {
 					if (!_settings_client.gui.timetable_in_ticks) val *= DATE_UNIT_SIZE;
 
-					DoCommandP(0, v->index, val, CMD_SCHEDULED_DISPATCH_SET_DURATION | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+					DoCommandP(0, v->index | (this->schedule_index << 20), val, CMD_SCHEDULED_DISPATCH_SET_DURATION | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 				}
 				break;
 			}
 
 			case WID_SCHDISPATCH_SET_DELAY: {
+				if (!this->IsScheduleSelected()) break;
 				char *end;
 				int32 val = StrEmpty(str) ? -1 : strtoul(str, &end, 10);
 
 				if (val >= 0 && end && *end == 0) {
 					if (!_settings_client.gui.timetable_in_ticks) val *= DATE_UNIT_SIZE;
 
-					DoCommandP(0, v->index, val, CMD_SCHEDULED_DISPATCH_SET_DELAY | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+					DoCommandP(0, v->index | (this->schedule_index << 20), val, CMD_SCHEDULED_DISPATCH_SET_DELAY | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
 				}
 				break;
 			}
@@ -685,15 +800,25 @@ struct SchdispatchWindow : Window {
 
 	void AddMultipleDepartureSlots(uint start, uint step, uint end)
 	{
-		if (end < start || step == 0) return;
+		if (end < start || step == 0 || !this->IsScheduleSelected()) return;
 
 		DateTicksScaled slot = MINUTES_DATE(MINUTES_DAY(CURRENT_MINUTE), 0, start);
 		slot -= _settings_time.clock_offset;
 		slot *= _settings_time.ticks_per_minute;
-		ScheduleAddIntl(this->vehicle->index, slot, (end - start) / step, step * _settings_time.ticks_per_minute);
+		ScheduleAddIntl(this->vehicle->index | (this->schedule_index << 20), slot, (end - start) / step, step * _settings_time.ticks_per_minute);
 	}
 };
 
+void CcAddNewSchDispatchSchedule(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint64 p3, uint32 cmd)
+{
+	SchdispatchWindow *w = dynamic_cast<SchdispatchWindow*>(FindWindowById(WC_SCHDISPATCH_SLOTS, p1));
+	if (w != nullptr) {
+		w->schedule_index = INT_MAX;
+		w->AutoSelectSchedule();
+		w->ReInit();
+	}
+}
+
 static const NWidgetPart _nested_schdispatch_widgets[] = {
 	NWidget(NWID_HORIZONTAL),
 		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
@@ -702,6 +827,16 @@ static const NWidgetPart _nested_schdispatch_widgets[] = {
 		NWidget(WWT_DEFSIZEBOX, COLOUR_GREY),
 		NWidget(WWT_STICKYBOX, COLOUR_GREY),
 	EndContainer(),
+	NWidget(WWT_PANEL, COLOUR_GREY),
+		NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
+			NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_ENABLED), SetDataTip(STR_SCHDISPATCH_ENABLED, STR_SCHDISPATCH_ENABLED_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
+			NWidget(WWT_TEXT, COLOUR_GREY, WID_SCHDISPATCH_HEADER), SetAlignment(SA_CENTER), SetDataTip(STR_JUST_STRING2, STR_NULL), SetFill(1, 1), SetResize(1, 0),
+			NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_PREV), SetDataTip(STR_SCHDISPATCH_PREV_SCHEDULE, STR_SCHDISPATCH_PREV_SCHEDULE_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_NEXT), SetDataTip(STR_SCHDISPATCH_NEXT_SCHEDULE, STR_SCHDISPATCH_NEXT_SCHEDULE_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_ADD_SCHEDULE), SetDataTip(STR_SCHDISPATCH_ADD_SCHEDULE, STR_SCHDISPATCH_ADD_SCHEDULE_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
+			EndContainer(),
+		EndContainer(),
 		NWidget(NWID_HORIZONTAL),
 			NWidget(WWT_MATRIX, COLOUR_GREY, WID_SCHDISPATCH_MATRIX), SetResize(1, 1), SetScrollbar(WID_SCHDISPATCH_V_SCROLL),
 			NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_SCHDISPATCH_V_SCROLL),
@@ -709,8 +844,8 @@ static const NWidgetPart _nested_schdispatch_widgets[] = {
 		NWidget(WWT_PANEL, COLOUR_GREY, WID_SCHDISPATCH_SUMMARY_PANEL), SetMinimalSize(400, 22), SetResize(1, 0), EndContainer(),
 		NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),
-			NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_ENABLED), SetDataTip(STR_SCHDISPATCH_ENABLED, STR_SCHDISPATCH_ENABLED_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_ADD), SetDataTip(STR_SCHDISPATCH_ADD, STR_SCHDISPATCH_ADD_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
+				NWidget(NWID_SPACER), SetFill(1, 1),
 			EndContainer(),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),
 					NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_SET_DURATION), SetDataTip(STR_SCHDISPATCH_DURATION, STR_SCHDISPATCH_DURATION_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
@@ -722,6 +857,7 @@ static const NWidgetPart _nested_schdispatch_widgets[] = {
 			EndContainer(),
 			NWidget(WWT_RESIZEBOX, COLOUR_GREY),
 		EndContainer(),
+	EndContainer(),
 };
 
 static WindowDesc _schdispatch_desc(

src/timetable_cmd.cpp

@@ -48,7 +48,7 @@ static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint32 val,
 			}
 			order->SetWaitTime(val);
 			order->SetWaitTimetabled(timetabled);
-			if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && timetabled && order->IsWaitTimetabled() && v->GetFirstWaitingLocation(true) == order_number) {
+			if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && timetabled && order->IsScheduledDispatchOrder(true)) {
 				for (Vehicle *u = v->FirstShared(); u != nullptr; u = u->NextShared()) {
 					if (u->cur_implicit_order_index == order_number && (u->last_station_visited == order->GetDestination())) {
 						u->lateness_counter += timetable_delta;
@@ -84,6 +84,18 @@ static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint32 val,
 			order->SetLeaveType((OrderLeaveType)val);
 			break;
 
+		case MTF_ASSIGN_SCHEDULE:
+			if ((int)val >= 0) {
+				for (int n = 0; n < v->GetNumOrders(); n++) {
+					Order *o = v->GetOrder(n);
+					if (o->GetDispatchScheduleIndex() == (int)val) {
+						o->SetDispatchScheduleIndex(-1);
+					}
+				}
+			}
+			order->SetDispatchScheduleIndex((int)val);
+			break;
+
 		default:
 			NOT_REACHED();
 	}
@@ -119,6 +131,10 @@ static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint32 val,
 					v->current_order.SetLeaveType((OrderLeaveType)val);
 					break;
 
+				case MTF_ASSIGN_SCHEDULE:
+					v->current_order.SetDispatchScheduleIndex((int)val);
+					break;
+
 				default:
 					NOT_REACHED();
 			}
@@ -170,6 +186,7 @@ CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 	bool wait_fixed = order->IsWaitFixed();
 	bool travel_fixed = order->IsTravelFixed();
 	OrderLeaveType leave_type = order->GetLeaveType();
+	int dispatch_index = order->GetDispatchScheduleIndex();
 	switch (mtf) {
 		case MTF_WAIT_TIME:
 			wait_time = p2;
@@ -199,6 +216,11 @@ CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 			if (leave_type >= OLT_END) return CMD_ERROR;
 			break;
 
+		case MTF_ASSIGN_SCHEDULE:
+			dispatch_index = (int)p2;
+			if (dispatch_index < -1 || dispatch_index >= (int)v->orders.list->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+			break;
+
 		default:
 			NOT_REACHED();
 	}
@@ -223,6 +245,23 @@ CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 		}
 	}
 
+	if (dispatch_index != order->GetDispatchScheduleIndex()) {
+		switch (order->GetType()) {
+			case OT_GOTO_STATION:
+				if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) {
+					if (mtf == MTF_ASSIGN_SCHEDULE && dispatch_index == -1) break;
+					return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
+				}
+				break;
+
+			case OT_GOTO_DEPOT:
+			case OT_GOTO_WAYPOINT:
+				break;
+
+			default: return_cmd_error(STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS);
+		}
+	}
+
 	if (travel_time != order->GetTravelTime() && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
 	if (max_speed != order->GetMaxSpeed() && (order->IsType(OT_CONDITIONAL) || v->type == VEH_AIRCRAFT)) return CMD_ERROR;
 	if (wait_fixed != order->IsWaitFixed() && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
@@ -268,6 +307,12 @@ CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 				}
 				break;
 
+			case MTF_ASSIGN_SCHEDULE:
+				if (dispatch_index != order->GetDispatchScheduleIndex()) {
+					ChangeTimetable(v, order_number, dispatch_index, MTF_ASSIGN_SCHEDULE, true);
+				}
+				break;
+
 			default:
 				break;
 		}
@@ -733,21 +778,16 @@ void UpdateSeparationOrder(Vehicle *v_start)
 	}
 }
 
-static bool IsVehicleAtFirstWaitingLocation(const Vehicle *v)
+static DateTicksScaled GetScheduledDispatchTime(const DispatchSchedule &ds, int wait_offset)
-{
-	return (v->cur_implicit_order_index == v->GetFirstWaitingLocation(true));
-}
-
-static DateTicksScaled GetScheduledDispatchTime(Vehicle *v, int wait_offset)
 {
 	DateTicksScaled first_slot          = -1;
-	const DateTicksScaled begin_time    = v->orders.list->GetScheduledDispatchStartTick();
+	const DateTicksScaled begin_time    = ds.GetScheduledDispatchStartTick();
-	const int32 last_dispatched_offset  = v->orders.list->GetScheduledDispatchLastDispatch();
+	const int32 last_dispatched_offset  = ds.GetScheduledDispatchLastDispatch();
-	const uint32 dispatch_duration      = v->orders.list->GetScheduledDispatchDuration();
+	const uint32 dispatch_duration      = ds.GetScheduledDispatchDuration();
-	const int32 max_delay               = v->orders.list->GetScheduledDispatchDelay();
+	const int32 max_delay               = ds.GetScheduledDispatchDelay();
 
 	/* Find next available slots */
-	for (auto current_offset : v->orders.list->GetScheduledDispatch()) {
+	for (auto current_offset : ds.GetScheduledDispatch()) {
 		if (current_offset >= dispatch_duration) continue;
 		if (int32(current_offset) <= last_dispatched_offset) {
 			current_offset += dispatch_duration * ((last_dispatched_offset + dispatch_duration - current_offset) / dispatch_duration);
@@ -801,17 +841,20 @@ void UpdateVehicleTimetable(Vehicle *v, bool travelling)
 	bool set_scheduled_dispatch = false;
 
 	/* Start scheduled dispatch at first opportunity */
-	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
+	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && v->cur_implicit_order_index != INVALID_VEH_ORDER_ID) {
-		if (IsVehicleAtFirstWaitingLocation(v) && travelling) {
+		Order *real_implicit_order = v->GetOrder(v->cur_implicit_order_index);
+		if (real_implicit_order->IsScheduledDispatchOrder(true) && travelling) {
+			DispatchSchedule &ds = v->orders.list->GetDispatchScheduleByIndex(real_implicit_order->GetDispatchScheduleIndex());
+
 			/* Update scheduled information */
-			v->orders.list->UpdateScheduledDispatch();
+			ds.UpdateScheduledDispatch();
 
 			const int wait_offset = real_current_order->GetTimetabledWait();
-			DateTicksScaled slot = GetScheduledDispatchTime(v, wait_offset);
+			DateTicksScaled slot = GetScheduledDispatchTime(ds, wait_offset);
 			if (slot > -1) {
 				SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
 				v->lateness_counter = _scaled_date_ticks - slot + wait_offset;
-				v->orders.list->SetScheduledDispatchLastDispatch(slot - v->orders.list->GetScheduledDispatchStartTick());
+				ds.SetScheduledDispatchLastDispatch(slot - ds.GetScheduledDispatchStartTick());
 				set_scheduled_dispatch = true;
 			}
 		}

src/timetable_gui.cpp

@@ -123,9 +123,6 @@ static void FillTimetableArrivalDepartureTable(const Vehicle *v, VehicleOrderID
 		table[i].arrival = table[i].departure = INVALID_TICKS;
 	}
 
-	VehicleOrderID scheduled_dispatch_order = INVALID_VEH_ORDER_ID;
-	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) scheduled_dispatch_order = v->GetFirstWaitingLocation(true);
-
 	/* Cyclically loop over all orders until we reach the current one again.
 	 * As we may start at the current order, do a post-checking loop */
 	do {
@@ -139,7 +136,7 @@ static void FillTimetableArrivalDepartureTable(const Vehicle *v, VehicleOrderID
 				table[i].arrival = sum;
 			}
 
-			if (i == scheduled_dispatch_order && !(i == start && !travelling)) return;
+			if (order->IsScheduledDispatchOrder(true) && !(i == start && !travelling)) return;
 			if (!CanDetermineTimeTaken(order, false)) return;
 			sum += order->GetTimetabledWait();
 			table[i].departure = sum;
@@ -240,12 +237,30 @@ void ProcessTimetableWarnings(const Vehicle *v, std::function<void(StringID, boo
 	if (have_bad_full_load) handler(STR_TIMETABLE_WARNING_FULL_LOAD, true);
 	if (have_conditional && HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE)) handler(STR_TIMETABLE_WARNING_AUTOFILL_CONDITIONAL, true);
 	if (total_time && have_non_timetabled_conditional_branch) handler(STR_TIMETABLE_NON_TIMETABLED_BRANCH, false);
-	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
+	if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && v->orders.list != nullptr) {
-		VehicleOrderID n = v->GetFirstWaitingLocation(false);
+		auto sd_warning = [&](int schedule_index, StringID str) {
-		if (n == INVALID_VEH_ORDER_ID) {
+			if (v->orders.list->GetScheduledDispatchScheduleCount() > 1) {
-			handler(STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER, true);
+				SetDParam(0, schedule_index + 1);
-		} else if (!v->GetOrder(n)->IsWaitTimetabled()) {
+				SetDParam(1, str);
-			handler(STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME, true);
+				handler(STR_TIMETABLE_WARNING_SCHEDULE_ID, true);
+			} else {
+				handler(str, true);
+			}
+		};
+		std::vector<bool> seen_sched_dispatch_orders(v->orders.list->GetScheduledDispatchScheduleCount());
+
+		for (int n = 0; n < v->GetNumOrders(); n++) {
+			const Order *order = v->GetOrder(n);
+			int schedule_index = order->GetDispatchScheduleIndex();
+			if (schedule_index >= 0) {
+				seen_sched_dispatch_orders[schedule_index] = true;
+				if (!order->IsWaitTimetabled()) {
+					sd_warning(schedule_index, STR_TIMETABLE_WARNING_SCHEDULED_DISPATCH_ORDER_NO_WAIT_TIME);
+				}
+			}
+		}
+		for (uint i = 0; i < seen_sched_dispatch_orders.size(); i++) {
+			if (!seen_sched_dispatch_orders[i]) sd_warning(i, STR_TIMETABLE_WARNING_NO_SCHEDULED_DISPATCH_ORDER_ASSIGNED);
 		}
 	}
 }
@@ -483,6 +498,7 @@ struct TimetableWindow : Window {
 			this->SetWidgetDisabledState(WID_VT_LOCK_ORDER_TIME, !wait_lockable);
 			this->SetWidgetLoweredState(WID_VT_LOCK_ORDER_TIME, wait_locked);
 			this->SetWidgetDisabledState(WID_VT_EXTRA, disable || (selected % 2 != 0));
+			this->SetWidgetDisabledState(WID_VT_ASSIGN_SCHEDULE, disable || (selected % 2 != 0) || !HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH));
 		} else {
 			this->DisableWidget(WID_VT_START_DATE);
 			this->DisableWidget(WID_VT_CHANGE_TIME);
@@ -497,14 +513,17 @@ struct TimetableWindow : Window {
 			this->DisableWidget(WID_VT_ADD_VEH_GROUP);
 			this->DisableWidget(WID_VT_LOCK_ORDER_TIME);
 			this->DisableWidget(WID_VT_EXTRA);
+			this->DisableWidget(WID_VT_ASSIGN_SCHEDULE);
 		}
 
 		this->SetWidgetLoweredState(WID_VT_AUTOFILL, HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE));
 		this->SetWidgetLoweredState(WID_VT_AUTOMATE, HasBit(v->vehicle_flags, VF_AUTOMATE_TIMETABLE));
 		this->SetWidgetLoweredState(WID_VT_AUTO_SEPARATION, HasBit(v->vehicle_flags, VF_TIMETABLE_SEPARATION));
 		this->SetWidgetLoweredState(WID_VT_SCHEDULED_DISPATCH, HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH));
+		this->SetWidgetLoweredState(WID_VT_SCHEDULED_DISPATCH, HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH));
 
 		this->SetWidgetDisabledState(WID_VT_SCHEDULED_DISPATCH, v->orders.list == nullptr);
+		this->GetWidget<NWidgetStacked>(WID_VT_START_DATE_SELECTION)->SetDisplayedPlane(HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) ? 1 : 0);
 
 		this->DrawWidgets();
 	}
@@ -944,6 +963,22 @@ struct TimetableWindow : Window {
 				ShowDropDownList(this, std::move(list), order != nullptr ? order->GetLeaveType() : -1, WID_VT_EXTRA);
 				break;
 			}
+
+			case WID_VT_ASSIGN_SCHEDULE: {
+				VehicleOrderID real = (this->sel_index + 1) / 2;
+				if (real >= this->vehicle->GetNumOrders()) real = 0;
+				const Order *order = this->vehicle->GetOrder(real);
+				DropDownList list;
+				list.emplace_back(new DropDownListStringItem(STR_TIMETABLE_ASSIGN_SCHEDULE_NONE, -1, false));
+
+				for (uint i = 0; i < v->orders.list->GetScheduledDispatchScheduleCount(); i++) {
+					DropDownListParamStringItem *item = new DropDownListParamStringItem(STR_TIMETABLE_ASSIGN_SCHEDULE_ID, i, false);
+					item->SetParam(0, i + 1);
+					list.emplace_back(item);
+				}
+				ShowDropDownList(this, std::move(list), order->GetDispatchScheduleIndex(), WID_VT_ASSIGN_SCHEDULE);
+				break;
+			}
 		}
 
 		this->SetDirty();
@@ -952,9 +987,13 @@ struct TimetableWindow : Window {
 	void OnDropdownSelect(int widget, int index) override
 	{
 		switch (widget) {
-			case WID_VT_EXTRA: {
+			case WID_VT_EXTRA:
 				ExecuteTimetableCommand(this->vehicle, false, this->sel_index, MTF_SET_LEAVE_TYPE, index, false);
-			}
+				break;
+
+			case WID_VT_ASSIGN_SCHEDULE:
+				ExecuteTimetableCommand(this->vehicle, false, this->sel_index, MTF_ASSIGN_SCHEDULE, index, false);
+				break;
 
 			default:
 				break;
@@ -1068,7 +1107,10 @@ static const NWidgetPart _nested_timetable_widgets[] = {
 	NWidget(NWID_HORIZONTAL),
 		NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),
+				NWidget(NWID_SELECTION, INVALID_COLOUR, WID_VT_START_DATE_SELECTION),
 					NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_VT_START_DATE), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_STARTING_DATE, STR_TIMETABLE_STARTING_DATE_TOOLTIP),
+					NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_VT_ASSIGN_SCHEDULE), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_ASSIGN_SCHEDULE_DROP_DOWN, STR_TIMETABLE_ASSIGN_SCHEDULE_DROP_DOWN_TOOLTIP),
+				EndContainer(),
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_VT_CHANGE_TIME), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_CHANGE_TIME, STR_TIMETABLE_WAIT_TIME_TOOLTIP),
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_VT_CLEAR_TIME), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_CLEAR_TIME, STR_TIMETABLE_CLEAR_TIME_TOOLTIP),
 			EndContainer(),

src/widgets/timetable_widget.h

@@ -37,6 +37,8 @@ enum VehicleTimetableWidgets {
 	WID_VT_SCHEDULED_DISPATCH,          ///< Scheduled Dispatch button.
 	WID_VT_LOCK_ORDER_TIME,             ///< Lock order time button.
 	WID_VT_EXTRA,                       ///< Extra drop down menu.
+	WID_VT_ASSIGN_SCHEDULE,             ///< Assign scheduled dispatch schedule.
+	WID_VT_START_DATE_SELECTION,        ///< #NWID_SELECTION widget for WID_VT_START_DATE and WID_VT_ASSIGN_SCHEDULE.
 };
 
 #endif /* WIDGETS_TIMETABLE_WIDGET_H */