Scheduled dispatch: Add button to adjust departure slots

src/command.cpp

@@ -298,6 +298,7 @@ CommandProc CmdScheduledDispatchRemoveSchedule;
 CommandProc CmdScheduledDispatchRenameSchedule;
 CommandProc CmdScheduledDispatchDuplicateSchedule;
 CommandProc CmdScheduledDispatchAppendVehicleSchedules;
+CommandProc CmdScheduledDispatchAdjust;
 
 CommandProc CmdAddPlan;
 CommandProcEx CmdAddPlanLine;
@@ -557,6 +558,7 @@ static const Command _command_proc_table[] = {
 	DEF_CMD(CmdScheduledDispatchRenameSchedule,                0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_RENAME_SCHEDULE
 	DEF_CMD(CmdScheduledDispatchDuplicateSchedule,             0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_DUPLICATE_SCHEDULE
 	DEF_CMD(CmdScheduledDispatchAppendVehicleSchedules,        0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_APPEND_VEHICLE_SCHEDULE
+	DEF_CMD(CmdScheduledDispatchAdjust,                        0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SCHEDULED_DISPATCH_ADJUST
 
 	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_type.h

@@ -520,6 +520,7 @@ enum Commands {
 	CMD_SCHEDULED_DISPATCH_RENAME_SCHEDULE,     ///< scheduled dispatch rename schedule
 	CMD_SCHEDULED_DISPATCH_DUPLICATE_SCHEDULE,  ///< scheduled dispatch duplicate schedule
 	CMD_SCHEDULED_DISPATCH_APPEND_VEHICLE_SCHEDULE, ///< scheduled dispatch append schedules from another vehicle
+	CMD_SCHEDULED_DISPATCH_ADJUST,              ///< scheduled dispatch adjust time offsets in schedule
 
 	CMD_ADD_PLAN,
 	CMD_ADD_PLAN_LINE,

src/lang/extra/english.txt

@@ -2005,6 +2005,11 @@ STR_SCHDISPATCH_DELAY_TOOLTIP                                   :{BLACK}Set maxi
 STR_SCHDISPATCH_DELAY_CAPTION_MINUTE                            :{BLACK}Delay (minutes)
 STR_SCHDISPATCH_DELAY_CAPTION_DAY                               :{BLACK}Delay (days)
 STR_SCHDISPATCH_DELAY_CAPTION_TICKS                             :{BLACK}Delay (ticks)
+STR_SCHDISPATCH_ADJUST                                          :{BLACK}Adjust Departure Slots
+STR_SCHDISPATCH_ADJUST_TOOLTIP                                  :{BLACK}Adjust all departure slots in this schedule.
+STR_SCHDISPATCH_ADJUST_CAPTION_MINUTE                           :{BLACK}Adjustment to add (minutes)
+STR_SCHDISPATCH_ADJUST_CAPTION_DAY                              :{BLACK}Adjustment to add (days)
+STR_SCHDISPATCH_ADJUST_CAPTION_TICKS                            :{BLACK}Adjustment to add (ticks)
 STR_SCHDISPATCH_RESET_LAST_DISPATCH                             :{BLACK}Reset Last Dispatched
 STR_SCHDISPATCH_RESET_LAST_DISPATCH_TOOLTIP                     :{BLACK}Reset when a vehicle was last dispatched from the schedule.
 STR_SCHDISPATCH_CLEAR                                           :{BLACK}Clear Departure Slots
@@ -2054,6 +2059,7 @@ STR_SCHDISPATCH_QUERY_REMOVE_SCHEDULE_CAPTION                   :{WHITE}Delete S
 STR_SCHDISPATCH_QUERY_REMOVE_SCHEDULE_TEXT                      :{WHITE}Are you sure you want to delete this schedule (containing  {NUM} departure slot{P "" s})?
 
 STR_ERROR_SCHDISPATCH_TRIED_TO_ADD_TOO_MANY_SLOTS               :{WHITE}Tried to add too many departure slots at once
+STR_ERROR_SCHDISPATCH_ADJUSTMENT_TOO_LARGE                      :{WHITE}Departure slot adjustment is too large
 
 # Modifier key toggle window
 STR_MODIFIER_KEY_TOGGLE_CAPTION                                 :{WHITE}Modifier keys

src/order_base.h

@@ -723,6 +723,7 @@ public:
 	void SetScheduledDispatch(std::vector<uint32> dispatch_list);
 	void AddScheduledDispatch(uint32 offset);
 	void RemoveScheduledDispatch(uint32 offset);
+	void AdjustScheduledDispatch(int32 adjust);
 	void ClearScheduledDispatch() { this->scheduled_dispatch.clear(); }
 	bool UpdateScheduledDispatchToDate(DateTicksScaled now);
 	void UpdateScheduledDispatch(const Vehicle *v);

src/schdispatch_cmd.cpp

@@ -530,6 +530,45 @@ CommandCost CmdScheduledDispatchAppendVehicleSchedules(TileIndex tile, DoCommand
 	return CommandCost();
 }
 
+/**
+ * Adjust scheduled dispatch time offsets
+ *
+ * @param tile Not used.
+ * @param flags Operation to perform.
+ * @param p1 Vehicle index
+ * @param p2 Signed adjustment
+ * @param text name
+ * @return the cost of this operation or an error
+ */
+CommandCost CmdScheduledDispatchAdjust(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+{
+	VehicleID veh = GB(p1, 0, 20);
+	uint schedule_index = GB(p1, 20, 12);
+	int32 adjustment = p2;
+
+	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 == nullptr) return CMD_ERROR;
+	if (v->orders->GetScheduledDispatchScheduleCount() >= 4096) return CMD_ERROR;
+
+	if (schedule_index >= v->orders->GetScheduledDispatchScheduleCount()) return CMD_ERROR;
+
+	DispatchSchedule &ds = v->orders->GetDispatchScheduleByIndex(schedule_index);
+	if (abs(adjustment) >= (int)ds.GetScheduledDispatchDuration()) return CommandCost(STR_ERROR_SCHDISPATCH_ADJUSTMENT_TOO_LARGE);
+
+	if (flags & DC_EXEC) {
+		ds.AdjustScheduledDispatch(adjustment);
+		ds.UpdateScheduledDispatch(nullptr);
+		SetTimetableWindowsDirty(v, true);
+	}
+
+	return CommandCost();
+}
+
 /**
  * Set scheduled dispatch slot list.
  * @param dispatch_list The offset time list, must be correctly sorted.
@@ -570,6 +609,21 @@ void DispatchSchedule::RemoveScheduledDispatch(uint32 offset)
 	this->scheduled_dispatch.erase(erase_position);
 }
 
+/**
+ * Adjust all scheduled dispatch slots by time adjustment.
+ * @param adjust The time adjustment to add to each time slot.
+ */
+void DispatchSchedule::AdjustScheduledDispatch(int32 adjust)
+{
+	for (uint32 &time : this->scheduled_dispatch) {
+		int32 t = (int32)time + adjust;
+		if (t < 0) t += GetScheduledDispatchDuration();
+		if (t >= (int32)GetScheduledDispatchDuration()) t -= (int32)GetScheduledDispatchDuration();
+		time = (uint32)t;
+	}
+	std::sort(this->scheduled_dispatch.begin(), this->scheduled_dispatch.end());
+}
+
 bool DispatchSchedule::UpdateScheduledDispatchToDate(DateTicksScaled now)
 {
 	bool update_windows = false;

src/schdispatch_gui.cpp

@@ -53,8 +53,9 @@ enum SchdispatchWidgets {
 	WID_SCHDISPATCH_ADD,             ///< Add Departure Time button
 	WID_SCHDISPATCH_SET_DURATION,    ///< Duration button
 	WID_SCHDISPATCH_SET_START_DATE,  ///< Start Date button
-	WID_SCHDISPATCH_SET_DELAY,       ///< Delat button
+	WID_SCHDISPATCH_SET_DELAY,       ///< Delay button
 	WID_SCHDISPATCH_MANAGEMENT,      ///< Management button
+	WID_SCHDISPATCH_ADJUST,          ///< Adjust departure times
 };
 
 /**
@@ -338,6 +339,7 @@ struct SchdispatchWindow : GeneralVehicleWindow {
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_SET_START_DATE, disabled);
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_SET_DELAY, disabled);
 		this->SetWidgetDisabledState(WID_SCHDISPATCH_MANAGEMENT, disabled);
+		this->SetWidgetDisabledState(WID_SCHDISPATCH_ADJUST, disabled || this->GetSelectedSchedule().GetScheduledDispatch().empty());
 
 		this->vscroll->SetCount(CeilDiv(this->item_count, this->num_columns));
 
@@ -764,6 +766,12 @@ struct SchdispatchWindow : GeneralVehicleWindow {
 				ShowQueryString(STR_JUST_RAW_STRING, STR_SCHDISPATCH_RENAME_SCHEDULE_CAPTION,
 						MAX_LENGTH_VEHICLE_NAME_CHARS, this, CS_ALPHANUMERAL, QSF_ENABLE_DEFAULT | QSF_LEN_IN_CHARS);
 				break;
+
+			case WID_SCHDISPATCH_ADJUST:
+				if (!this->IsScheduleSelected()) break;
+				SetDParam(0, 0);
+				ShowQueryString(STR_JUST_INT, STR_SCHDISPATCH_ADJUST_CAPTION_MINUTE + this->GetQueryStringCaptionOffset(), 31, this, CS_NUMERAL_SIGNED, QSF_NONE);
+				break;
 		}
 
 		this->SetDirty();
@@ -908,6 +916,18 @@ struct SchdispatchWindow : GeneralVehicleWindow {
 				DoCommandP(0, v->index | (this->schedule_index << 20), 0, CMD_SCHEDULED_DISPATCH_RENAME_SCHEDULE | CMD_MSG(STR_ERROR_CAN_T_RENAME_SCHEDULE), nullptr, str);
 				break;
 			}
+
+			case WID_SCHDISPATCH_ADJUST: {
+				if (!this->IsScheduleSelected()) break;
+				int32 val = StrEmpty(str) ? 0 : strtol(str, nullptr, 10);
+
+				if (val != 0) {
+					if (!_settings_client.gui.timetable_in_ticks) val *= DATE_UNIT_SIZE;
+
+					DoCommandP(0, v->index | (this->schedule_index << 20), val, CMD_SCHEDULED_DISPATCH_ADJUST | CMD_MSG(STR_ERROR_CAN_T_TIMETABLE_VEHICLE));
+				}
+				break;
+			}
 		}
 
 		this->SetDirty();
@@ -998,7 +1018,7 @@ static const NWidgetPart _nested_schdispatch_widgets[] = {
 		NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),
 				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),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SCHDISPATCH_ADJUST), SetDataTip(STR_SCHDISPATCH_ADJUST, STR_SCHDISPATCH_ADJUST_TOOLTIP), SetFill(1, 1), SetResize(1, 0),
 			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),