Fix e2425b7: Sprites no longer refreshed if max zoom level changed.

Handle this via AdjustGUIZoom() instead.

src/base_consist.h

@@ -18,8 +18,8 @@ struct BaseConsist {
 	std::string name;                   ///< Name of vehicle
 
 	/* Used for timetabling. */
-	uint32_t current_order_time;               ///< How many ticks have passed since this order started.
+	TimerGameTick::Ticks current_order_time;    ///< How many ticks have passed since this order started.
-	int32_t lateness_counter;                  ///< How many ticks late (or early if negative) this vehicle is.
+	TimerGameTick::Ticks lateness_counter;      ///< How many ticks late (or early if negative) this vehicle is.
 	TimerGameTick::TickCounter timetable_start; ///< At what tick of TimerGameTick::counter the vehicle should start its timetable.
 
 	uint16_t service_interval;            ///< The interval for (automatic) servicing; either in days or %.

src/economy.cpp

@@ -1872,7 +1872,7 @@ static void LoadUnloadVehicle(Vehicle *front)
 		/* We loaded less cargo than possible for all cargo types and it's not full
 		 * load and we're not supposed to wait any longer: stop loading. */
 		if (!anything_unloaded && full_load_amount == 0 && reservation_left == 0 && !(front->current_order.GetLoadType() & OLFB_FULL_LOAD) &&
-				front->current_order_time >= (uint)std::max(front->current_order.GetTimetabledWait() - front->lateness_counter, 0)) {
+				front->current_order_time >= std::max(front->current_order.GetTimetabledWait() - front->lateness_counter, 0)) {
 			SetBit(front->vehicle_flags, VF_STOP_LOADING);
 		}
 

src/gfx.cpp

@@ -1980,7 +1980,7 @@ bool AdjustGUIZoom(bool automatic)
 	ZoomLevel old_font_zoom = _font_zoom;
 	int old_scale = _gui_scale;
 	UpdateGUIZoom();
-	if (old_scale == _gui_scale) return false;
+	if (old_scale == _gui_scale && old_gui_zoom == _gui_zoom) return false;
 
 	/* Reload sprites if sprite zoom level has changed. */
 	if (old_gui_zoom != _gui_zoom) {

src/lang/english.txt

@@ -255,6 +255,10 @@ STR_UNITS_HEIGHT_IMPERIAL                                       :{DECIMAL}{NBSP}
 STR_UNITS_HEIGHT_METRIC                                         :{DECIMAL}{NBSP}m
 STR_UNITS_HEIGHT_SI                                             :{DECIMAL}{NBSP}m
 
+STR_UNITS_DAYS                                                  :{COMMA}{NBSP}day{P "" s}
+STR_UNITS_SECONDS                                               :{COMMA}{NBSP}second{P "" s}
+STR_UNITS_TICKS                                                 :{COMMA}{NBSP}tick{P "" s}
+
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Filter:
 STR_LIST_FILTER_OSKTITLE                                        :{BLACK}Enter one or more keywords to filter the list for
@@ -1655,8 +1659,12 @@ STR_CONFIG_SETTING_ADVANCED_VEHICLE_LISTS_HELPTEXT              :Enable usage of
 STR_CONFIG_SETTING_LOADING_INDICATORS                           :Use loading indicators: {STRING2}
 STR_CONFIG_SETTING_LOADING_INDICATORS_HELPTEXT                  :Select whether loading indicators are displayed above loading or unloading vehicles
 
-STR_CONFIG_SETTING_TIMETABLE_IN_TICKS                           :Show timetable in ticks rather than days: {STRING2}
+STR_CONFIG_SETTING_TIMETABLE_MODE                               :Time units for timetables: {STRING2}
-STR_CONFIG_SETTING_TIMETABLE_IN_TICKS_HELPTEXT                  :Show travel times in time tables in game ticks instead of days
+STR_CONFIG_SETTING_TIMETABLE_MODE_HELPTEXT                      :Select the time units used for vehicle timetables
+###length 3
+STR_CONFIG_SETTING_TIMETABLE_MODE_DAYS                          :Days
+STR_CONFIG_SETTING_TIMETABLE_MODE_SECONDS                       :Seconds
+STR_CONFIG_SETTING_TIMETABLE_MODE_TICKS                         :Ticks
 
 STR_CONFIG_SETTING_TIMETABLE_SHOW_ARRIVAL_DEPARTURE             :Show arrival and departure in timetables: {STRING2}
 STR_CONFIG_SETTING_TIMETABLE_SHOW_ARRIVAL_DEPARTURE_HELPTEXT    :Display anticipated arrival and departure times in timetables
@@ -4565,8 +4573,6 @@ STR_TIMETABLE_STAY_FOR_ESTIMATED                                :(stay for {STRI
 STR_TIMETABLE_AND_TRAVEL_FOR_ESTIMATED                          :(travel for {STRING1}, not timetabled)
 STR_TIMETABLE_STAY_FOR                                          :and stay for {STRING1}
 STR_TIMETABLE_AND_TRAVEL_FOR                                    :and travel for {STRING1}
-STR_TIMETABLE_DAYS                                              :{COMMA}{NBSP}day{P "" s}
-STR_TIMETABLE_TICKS                                             :{COMMA}{NBSP}tick{P "" s}
 
 STR_TIMETABLE_TOTAL_TIME                                        :{BLACK}This timetable will take {STRING1} to complete
 STR_TIMETABLE_TOTAL_TIME_INCOMPLETE                             :{BLACK}This timetable will take at least {STRING1} to complete (not all timetabled)
@@ -4575,10 +4581,13 @@ STR_TIMETABLE_STATUS_ON_TIME                                    :{BLACK}This veh
 STR_TIMETABLE_STATUS_LATE                                       :{BLACK}This vehicle is currently running {STRING1} late
 STR_TIMETABLE_STATUS_EARLY                                      :{BLACK}This vehicle is currently running {STRING1} early
 STR_TIMETABLE_STATUS_NOT_STARTED                                :{BLACK}This timetable has not yet started
-STR_TIMETABLE_STATUS_START_AT                                   :{BLACK}This timetable will start at {STRING1}
+STR_TIMETABLE_STATUS_START_AT_DATE                              :{BLACK}This timetable will start at {STRING1}
+STR_TIMETABLE_STATUS_START_IN_SECONDS                           :{BLACK}This timetable will start in {COMMA} seconds
 
-STR_TIMETABLE_STARTING_DATE                                     :{BLACK}Start date
+STR_TIMETABLE_START                                             :{BLACK}Start Timetable
-STR_TIMETABLE_STARTING_DATE_TOOLTIP                             :{BLACK}Select a date as starting point of this timetable. Ctrl+Click distributes all vehicles sharing this order evenly from the given date based on their relative order, if the order is completely timetabled
+STR_TIMETABLE_START_TOOLTIP                                     :{BLACK}Select when this timetable starts. Ctrl+Click evenly distributes the start of all vehicles sharing this order based on their relative order, if the order is completely timetabled
+
+STR_TIMETABLE_START_SECONDS_QUERY                               :Seconds until timetable starts
 
 STR_TIMETABLE_CHANGE_TIME                                       :{BLACK}Change Time
 STR_TIMETABLE_WAIT_TIME_TOOLTIP                                 :{BLACK}Change the amount of time that the highlighted order should take. Ctrl+Click sets the time for all orders
@@ -4602,8 +4611,10 @@ STR_TIMETABLE_EXPECTED                                          :{BLACK}Expected
 STR_TIMETABLE_SCHEDULED                                         :{BLACK}Scheduled
 STR_TIMETABLE_EXPECTED_TOOLTIP                                  :{BLACK}Switch between expected and scheduled
 
-STR_TIMETABLE_ARRIVAL                                           :A: {COLOUR}{DATE_TINY}
+STR_TIMETABLE_ARRIVAL_DATE                                      :A: {COLOUR}{DATE_TINY}
-STR_TIMETABLE_DEPARTURE                                         :D: {COLOUR}{DATE_TINY}
+STR_TIMETABLE_DEPARTURE_DATE                                    :D: {COLOUR}{DATE_TINY}
+STR_TIMETABLE_ARRIVAL_SECONDS_IN_FUTURE                         :A: {COLOUR}{COMMA} sec
+STR_TIMETABLE_DEPARTURE_SECONDS_IN_FUTURE                       :D: {COLOUR}{COMMA} sec
 
 
 # Date window (for timetable)

src/linkgraph/refresh.cpp

@@ -233,8 +233,7 @@ void LinkRefresher::RefreshStats(const Order *cur, const Order *next)
 			 * probably far off and we'd greatly overestimate the capacity by increasing.*/
 			if (this->is_full_loading && this->vehicle->orders != nullptr &&
 					st->index == vehicle->last_station_visited &&
-					this->vehicle->orders->GetTotalDuration() >
+					this->vehicle->orders->GetTotalDuration() > this->vehicle->current_order_time) {
-					(TimerGameTick::Ticks)this->vehicle->current_order_time) {
 				uint effective_capacity = cargo_quantity * this->vehicle->load_unload_ticks;
 				if (effective_capacity > (uint)this->vehicle->orders->GetTotalDuration()) {
 					IncreaseStats(st, c, next_station, effective_capacity /

src/saveload/saveload.h

@@ -365,6 +365,7 @@ enum SaveLoadVersion : uint16_t {
 	SLV_STATION_RATING_CHEAT,               ///< 320  PR#11346 Add cheat to fix station ratings at 100%.
 	SLV_TIMETABLE_START_TICKS,              ///< 321  PR#11468 Convert timetable start from a date to ticks.
 	SLV_TIMETABLE_START_TICKS_FIX,          ///< 322  PR#11557 Fix for missing convert timetable start from a date to ticks.
+	SLV_TIMETABLE_TICKS_TYPE,               ///< 323  PR#11435 Convert timetable current order time to ticks.
 
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };

src/saveload/vehicle_sl.cpp

@@ -720,7 +720,8 @@ public:
 		SLE_CONDREF(Vehicle, next_shared,           REF_VEHICLE,                  SLV_2, SL_MAX_VERSION),
 		SLE_CONDVAR(Vehicle, group_id,              SLE_UINT16,                  SLV_60, SL_MAX_VERSION),
 
-		SLE_CONDVAR(Vehicle, current_order_time,    SLE_UINT32,                  SLV_67, SL_MAX_VERSION),
+		SLE_CONDVAR(Vehicle, current_order_time,    SLE_FILE_U32 | SLE_VAR_I32,  SLV_67, SLV_TIMETABLE_TICKS_TYPE),
+		SLE_CONDVAR(Vehicle, current_order_time,    SLE_INT32,                   SLV_TIMETABLE_TICKS_TYPE, SL_MAX_VERSION),
 		SLE_CONDVAR(Vehicle, last_loading_tick,     SLE_UINT64,                   SLV_LAST_LOADING_TICK, SL_MAX_VERSION),
 		SLE_CONDVAR(Vehicle, lateness_counter,      SLE_INT32,                   SLV_67, SL_MAX_VERSION),
 	};

src/settings_gui.cpp

@@ -1803,7 +1803,7 @@ static SettingsContainer &GetSettingsTree()
 			interface->Add(new SettingEntry("gui.statusbar_pos"));
 			interface->Add(new SettingEntry("gui.prefer_teamchat"));
 			interface->Add(new SettingEntry("gui.advanced_vehicle_list"));
-			interface->Add(new SettingEntry("gui.timetable_in_ticks"));
+			interface->Add(new SettingEntry("gui.timetable_mode"));
 			interface->Add(new SettingEntry("gui.timetable_arrival_departure"));
 			interface->Add(new SettingEntry("gui.show_newgrf_name"));
 			interface->Add(new SettingEntry("gui.show_cargo_in_vehicle_lists"));

src/settings_table.cpp

@@ -265,11 +265,7 @@ static void ZoomMinMaxChanged(int32_t)
 {
 	ConstrainAllViewportsZoom();
 	GfxClearSpriteCache();
-	if (_settings_client.gui.zoom_min > _gui_zoom) {
+	if (AdjustGUIZoom(false)) {
-		/* Restrict GUI zoom if it is no longer available. */
-		_gui_zoom = _settings_client.gui.zoom_min;
-		UpdateCursorSize();
-		LoadStringWidthTable();
 		ReInitAllWindows(true);
 	}
 }

src/settings_type.h

@@ -22,6 +22,7 @@
 #include "openttd.h"
 #include "rail_gui.h"
 #include "signal_type.h"
+#include "timetable.h"
 
 /* Used to validate sizes of "max" value in settings. */
 const size_t MAX_SLE_UINT8 = UINT8_MAX;
@@ -167,7 +168,7 @@ struct GUISettings {
 	SignalCycleSettings cycle_signal_types;  ///< Which signal types to cycle with the build signal tool.
 	SignalType default_signal_type;          ///< The default signal type, which is set automatically by the last signal used. Not available in Settings.
 	TimerGameCalendar::Year coloured_news_year; ///< when does newspaper become coloured?
-	bool   timetable_in_ticks;               ///< whether to show the timetable in ticks rather than days
+	TimetableMode timetable_mode;            ///< Time units for timetables: days, seconds, or ticks
 	bool   quick_goto;                       ///< Allow quick access to 'goto button' in vehicle orders window
 	bool   auto_euro;                        ///< automatically switch to euro in 2002
 	byte   drag_signals_density;             ///< many signals density

src/table/settings/gui_settings.ini

@@ -420,14 +420,18 @@ str      = STR_CONFIG_SETTING_ADVANCED_VEHICLE_LISTS
 strhelp  = STR_CONFIG_SETTING_ADVANCED_VEHICLE_LISTS_HELPTEXT
 strval   = STR_CONFIG_SETTING_COMPANIES_OFF
 
-[SDTC_BOOL]
+[SDTC_VAR]
-var      = gui.timetable_in_ticks
+var      = gui.timetable_mode
-flags    = SF_NOT_IN_SAVE | SF_NO_NETWORK_SYNC
+type     = SLE_UINT8
-def      = false
+flags    = SF_NOT_IN_SAVE | SF_NO_NETWORK_SYNC | SF_GUI_DROPDOWN
-str      = STR_CONFIG_SETTING_TIMETABLE_IN_TICKS
+def      = 0
-strhelp  = STR_CONFIG_SETTING_TIMETABLE_IN_TICKS_HELPTEXT
+min      = 0
+max      = 2
+str      = STR_CONFIG_SETTING_TIMETABLE_MODE
+strhelp  = STR_CONFIG_SETTING_TIMETABLE_MODE_HELPTEXT
+strval   = STR_CONFIG_SETTING_TIMETABLE_MODE_DAYS
 post_cb  = [](auto) { InvalidateWindowClassesData(WC_VEHICLE_TIMETABLE, VIWD_MODIFY_ORDERS); }
-cat      = SC_EXPERT
+cat      = SC_ADVANCED
 
 [SDTC_BOOL]
 var      = gui.timetable_arrival_departure

src/timetable.h

@@ -16,6 +16,12 @@
 
 static const TimerGameCalendar::Year MAX_TIMETABLE_START_YEARS = 15; ///< The maximum start date offset, in years.
 
+enum class TimetableMode : uint8_t {
+	Days,
+	Seconds,
+	Ticks,
+};
+
 TimerGameTick::TickCounter GetStartTickFromDate(TimerGameCalendar::Date start_date);
 TimerGameCalendar::Date GetDateFromStartTick(TimerGameTick::TickCounter start_tick);
 

src/timetable_cmd.cpp

@@ -264,7 +264,7 @@ CommandCost CmdSetVehicleOnTime(DoCommandFlag flags, VehicleID veh, bool apply_t
 
 	if (flags & DC_EXEC) {
 		if (apply_to_group) {
-			int32_t most_late = 0;
+			TimerGameTick::Ticks most_late = 0;
 			for (Vehicle *u = v->FirstShared(); u != nullptr; u = u->NextShared()) {
 				/* A vehicle can't be late if its timetable hasn't started. */
 				if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) continue;
@@ -454,7 +454,7 @@ CommandCost CmdAutofillTimetable(DoCommandFlag flags, VehicleID veh, bool autofi
  */
 void UpdateVehicleTimetable(Vehicle *v, bool travelling)
 {
-	uint time_taken = v->current_order_time;
+	TimerGameTick::Ticks time_taken = v->current_order_time;
 
 	v->current_order_time = 0;
 
@@ -505,16 +505,15 @@ void UpdateVehicleTimetable(Vehicle *v, bool travelling)
 	/* Before modifying waiting times, check whether we want to preserve bigger ones. */
 	if (!real_current_order->IsType(OT_CONDITIONAL) &&
 			(travelling || time_taken > real_current_order->GetWaitTime() || remeasure_wait_time)) {
-		/* Round the time taken up to the nearest day, as this will avoid
+		/* Round up to the smallest unit of time commonly shown in the GUI (seconds) to avoid confusion.
-		 * confusion for people who are timetabling in days, and can be
+		 * Players timetabling in Ticks can adjust later.
-		 * adjusted later by people who aren't.
 		 * For trains/aircraft multiple movement cycles are done in one
 		 * tick. This makes it possible to leave the station and process
 		 * e.g. a depot order in the same tick, causing it to not fill
 		 * the timetable entry like is done for road vehicles/ships.
 		 * Thus always make sure at least one tick is used between the
 		 * processing of different orders when filling the timetable. */
-		uint time_to_set = CeilDiv(std::max(time_taken, 1U), Ticks::DAY_TICKS) * Ticks::DAY_TICKS;
+		uint time_to_set = CeilDiv(std::max(time_taken, 1), Ticks::TICKS_PER_SECOND) * Ticks::TICKS_PER_SECOND;
 
 		if (travelling && (autofilling || !real_current_order->IsTravelTimetabled())) {
 			ChangeTimetable(v, v->cur_real_order_index, time_to_set, MTF_TRAVEL_TIME, autofilling);
@@ -533,7 +532,7 @@ void UpdateVehicleTimetable(Vehicle *v, bool travelling)
 
 	if (autofilling) return;
 
-	uint timetabled = travelling ? real_current_order->GetTimetabledTravel() :
+	TimerGameTick::Ticks timetabled = travelling ? real_current_order->GetTimetabledTravel() :
 			real_current_order->GetTimetabledWait();
 
 	/* Vehicles will wait at stations if they arrive early even if they are not
@@ -548,7 +547,7 @@ void UpdateVehicleTimetable(Vehicle *v, bool travelling)
 	 * shorter than the amount of ticks we are late we reduce the lateness by the
 	 * length of a full cycle till lateness is less than the length of a timetable
 	 * cycle. When the timetable isn't fully filled the cycle will be Ticks::INVALID_TICKS. */
-	if (v->lateness_counter > (int)timetabled) {
+	if (v->lateness_counter > timetabled) {
 		TimerGameTick::Ticks cycle = v->orders->GetTimetableTotalDuration();
 		if (cycle != Ticks::INVALID_TICKS && v->lateness_counter > cycle) {
 			v->lateness_counter %= cycle;

src/timetable_gui.cpp

@@ -18,8 +18,10 @@
 #include "string_func.h"
 #include "gfx_func.h"
 #include "company_func.h"
+#include "timer/timer.h"
 #include "timer/timer_game_tick.h"
 #include "timer/timer_game_calendar.h"
+#include "timer/timer_window.h"
 #include "date_gui.h"
 #include "vehicle_gui.h"
 #include "settings_type.h"
@@ -47,12 +49,59 @@ struct TimetableArrivalDeparture {
  */
 void SetTimetableParams(int param1, int param2, TimerGameTick::Ticks ticks)
 {
-	if (_settings_client.gui.timetable_in_ticks) {
+	switch (_settings_client.gui.timetable_mode) {
-		SetDParam(param1, STR_TIMETABLE_TICKS);
+		case TimetableMode::Days:
-		SetDParam(param2, ticks);
+			SetDParam(param1, STR_UNITS_DAYS);
-	} else {
-		SetDParam(param1, STR_TIMETABLE_DAYS);
 			SetDParam(param2, ticks / Ticks::DAY_TICKS);
+			break;
+		case TimetableMode::Seconds:
+			SetDParam(param1, STR_UNITS_SECONDS);
+			SetDParam(param2, ticks / Ticks::TICKS_PER_SECOND);
+			break;
+		case TimetableMode::Ticks:
+			SetDParam(param1, STR_UNITS_TICKS);
+			SetDParam(param2, ticks);
+			break;
+		default:
+			NOT_REACHED();
+	}
+}
+
+/**
+ * Get the number of ticks in the current timetable display unit.
+ * @return The number of ticks per day, second, or tick, to match the timetable display.
+ */
+static inline TimerGameTick::Ticks TicksPerTimetableUnit()
+{
+	switch (_settings_client.gui.timetable_mode) {
+		case TimetableMode::Days:
+			return Ticks::DAY_TICKS;
+		case TimetableMode::Seconds:
+			return Ticks::TICKS_PER_SECOND;
+		case TimetableMode::Ticks:
+			return 1;
+		default:
+			NOT_REACHED();
+	}
+}
+
+/**
+ * Determine if a vehicle should be shown as late, depending on the timetable display setting.
+ * @param v The vehicle in question.
+ * @param round_to_day When using ticks, if we should round up to the nearest day.
+ * @return True if the vehicle is later than the threshold.
+ */
+bool VehicleIsAboveLatenessThreshold(const Vehicle *v, bool round_to_day)
+{
+	switch (_settings_client.gui.timetable_mode) {
+		case TimetableMode::Days:
+			return v->lateness_counter > Ticks::DAY_TICKS;
+		case TimetableMode::Seconds:
+			return v->lateness_counter > Ticks::TICKS_PER_SECOND;
+		case TimetableMode::Ticks:
+			return v->lateness_counter > (round_to_day ? Ticks::DAY_TICKS : 0);
+		default:
+			NOT_REACHED();
 	}
 }
 
@@ -183,7 +232,10 @@ struct TimetableWindow : Window {
 		assert(HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED));
 
 		bool travelling = (!v->current_order.IsType(OT_LOADING) || v->current_order.GetNonStopType() == ONSF_STOP_EVERYWHERE);
-		TimerGameTick::Ticks start_time = TimerGameCalendar::date_fract - v->current_order_time;
+		TimerGameTick::Ticks start_time = -v->current_order_time;
+
+		/* If arrival and departure times are in days, compensate for the current date_fract. */
+		if (_settings_client.gui.timetable_mode != TimetableMode::Seconds) start_time += TimerGameCalendar::date_fract;
 
 		FillTimetableArrivalDepartureTable(v, v->cur_real_order_index % v->GetNumOrders(), travelling, table, start_time);
 
@@ -194,8 +246,15 @@ struct TimetableWindow : Window {
 	{
 		switch (widget) {
 			case WID_VT_ARRIVAL_DEPARTURE_PANEL:
+				/* We handle this differently depending on the timetable mode. */
+				if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+					/* A five-digit number would fit a timetable lasting 2.7 real-world hours, which should be plenty. */
+					SetDParamMaxDigits(1, 4, FS_SMALL);
+					size->width = std::max(GetStringBoundingBox(STR_TIMETABLE_ARRIVAL_SECONDS_IN_FUTURE).width, GetStringBoundingBox(STR_TIMETABLE_DEPARTURE_SECONDS_IN_FUTURE).width) + WidgetDimensions::scaled.hsep_wide + padding.width;
+				} else {
 					SetDParamMaxValue(1, TimerGameCalendar::DateAtStartOfYear(CalendarTime::MAX_YEAR), 0, FS_SMALL);
-				size->width = std::max(GetStringBoundingBox(STR_TIMETABLE_ARRIVAL).width, GetStringBoundingBox(STR_TIMETABLE_DEPARTURE).width) + WidgetDimensions::scaled.hsep_wide + padding.width;
+					size->width = std::max(GetStringBoundingBox(STR_TIMETABLE_ARRIVAL_DATE).width, GetStringBoundingBox(STR_TIMETABLE_DEPARTURE_DATE).width) + WidgetDimensions::scaled.hsep_wide + padding.width;
+				}
 				FALLTHROUGH;
 
 			case WID_VT_ARRIVAL_DEPARTURE_SELECTION:
@@ -436,7 +495,7 @@ struct TimetableWindow : Window {
 		int selected = this->sel_index;
 
 		Rect tr = r.Shrink(WidgetDimensions::scaled.framerect);
-		bool show_late = this->show_expected && v->lateness_counter > Ticks::DAY_TICKS;
+		bool show_late = this->show_expected && VehicleIsAboveLatenessThreshold(v, true);
 		TimerGameTick::Ticks offset = show_late ? 0 : -v->lateness_counter;
 
 		for (int i = this->vscroll->GetPosition(); i / 2 < v->GetNumOrders(); ++i) { // note: i is also incremented in the loop
@@ -460,14 +519,28 @@ struct TimetableWindow : Window {
 					}
 
 					/* Now actually draw the arrival time. */
+					if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+						/* Display seconds from now. */
+						SetDParam(1, ((arr_dep[i / 2].arrival + offset) / Ticks::TICKS_PER_SECOND));
+						DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_ARRIVAL_SECONDS_IN_FUTURE, i == selected ? TC_WHITE : TC_BLACK);
+					} else {
+						/* Show a date. */
 						SetDParam(1, TimerGameCalendar::date + (arr_dep[i / 2].arrival + this_offset) / Ticks::DAY_TICKS);
-					DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_ARRIVAL, i == selected ? TC_WHITE : TC_BLACK);
+						DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_ARRIVAL_DATE, i == selected ? TC_WHITE : TC_BLACK);
+					}
 				}
 			} else {
 				/* Draw a departure time. */
 				if (arr_dep[i / 2].departure != Ticks::INVALID_TICKS) {
+					if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+						/* Display seconds from now. */
+						SetDParam(1, ((arr_dep[i / 2].departure + offset) / Ticks::TICKS_PER_SECOND));
+						DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_DEPARTURE_SECONDS_IN_FUTURE, i == selected ? TC_WHITE : TC_BLACK);
+					} else {
+						/* Show a date. */
 						SetDParam(1, TimerGameCalendar::date + (arr_dep[i / 2].departure + offset) / Ticks::DAY_TICKS);
-					DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_DEPARTURE, i == selected ? TC_WHITE : TC_BLACK);
+						DrawString(tr.left, tr.right, tr.top, STR_TIMETABLE_DEPARTURE_DATE, i == selected ? TC_WHITE : TC_BLACK);
+					}
 				}
 			}
 			tr.top += GetCharacterHeight(FS_NORMAL);
@@ -490,19 +563,28 @@ struct TimetableWindow : Window {
 		}
 		tr.top += GetCharacterHeight(FS_NORMAL);
 
+		/* Draw the lateness display, or indicate that the timetable has not started yet. */
 		if (v->timetable_start != 0) {
 			/* We are running towards the first station so we can start the
 			 * timetable at the given time. */
+			if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+				/* Real time units use seconds relative to now. */
+				SetDParam(0, (static_cast<TimerGameTick::Ticks>(v->timetable_start - TimerGameTick::counter) / Ticks::TICKS_PER_SECOND));
+				DrawString(tr, STR_TIMETABLE_STATUS_START_IN_SECONDS);
+			} else {
+				/* Calendar units use dates. */
 				SetDParam(0, STR_JUST_DATE_TINY);
 				SetDParam(1, GetDateFromStartTick(v->timetable_start));
-			DrawString(tr, STR_TIMETABLE_STATUS_START_AT);
+				DrawString(tr, STR_TIMETABLE_STATUS_START_AT_DATE);
+			}
 		} else if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) {
-			/* We aren't running on a timetable yet, so how can we be "on time"
+			/* We aren't running on a timetable yet. */
-			 * when we aren't even "on service"/"on duty"? */
 			DrawString(tr, STR_TIMETABLE_STATUS_NOT_STARTED);
-		} else if (v->lateness_counter == 0 || (!_settings_client.gui.timetable_in_ticks && v->lateness_counter / Ticks::DAY_TICKS == 0)) {
+		} else if (!VehicleIsAboveLatenessThreshold(v, false)) {
+			/* We are on time. */
 			DrawString(tr, STR_TIMETABLE_STATUS_ON_TIME);
 		} else {
+			/* We are late. */
 			SetTimetableParams(0, 1, abs(v->lateness_counter));
 			DrawString(tr, v->lateness_counter < 0 ? STR_TIMETABLE_STATUS_EARLY : STR_TIMETABLE_STATUS_LATE);
 		}
@@ -556,7 +638,13 @@ struct TimetableWindow : Window {
 			}
 
 			case WID_VT_START_DATE: // Change the date that the timetable starts.
-				ShowSetDateWindow(this, v->index, TimerGameCalendar::date, TimerGameCalendar::year, TimerGameCalendar::year + MAX_TIMETABLE_START_YEARS, ChangeTimetableStartCallback, reinterpret_cast<void *>(static_cast<uintptr_t>(_ctrl_pressed)));
+				if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+					this->query_widget = WID_VT_START_DATE;
+					this->change_timetable_all = _ctrl_pressed;
+					ShowQueryString(STR_EMPTY, STR_TIMETABLE_START_SECONDS_QUERY, 6, this, CS_NUMERAL, QSF_ACCEPT_UNCHANGED);
+				} else {
+					ShowSetDateWindow(this, v->index, TimerGameCalendar::date, TimerGameCalendar::year, TimerGameCalendar::year + MAX_TIMETABLE_START_YEARS, ChangeTimetableStartCallback, reinterpret_cast<void*>(static_cast<uintptr_t>(_ctrl_pressed)));
+				}
 				break;
 
 			case WID_VT_CHANGE_TIME: { // "Wait For" button.
@@ -571,7 +659,7 @@ struct TimetableWindow : Window {
 
 				if (order != nullptr) {
 					uint time = (selected % 2 != 0) ? order->GetTravelTime() : order->GetWaitTime();
-					if (!_settings_client.gui.timetable_in_ticks) time /= Ticks::DAY_TICKS;
+					time /= TicksPerTimetableUnit();
 
 					if (time != 0) {
 						SetDParam(0, time);
@@ -667,7 +755,7 @@ struct TimetableWindow : Window {
 			}
 
 			case WID_VT_CHANGE_TIME:
-				if (!_settings_client.gui.timetable_in_ticks) val *= Ticks::DAY_TICKS;
+				val *= TicksPerTimetableUnit();
 
 				if (this->change_timetable_all) {
 					Command<CMD_BULK_CHANGE_TIMETABLE>::Post(STR_ERROR_CAN_T_TIMETABLE_VEHICLE, v->index, mtf, ClampTo<uint16_t>(val));
@@ -676,6 +764,12 @@ struct TimetableWindow : Window {
 				}
 				break;
 
+			case WID_VT_START_DATE: {
+				TimerGameTick::TickCounter start_tick = TimerGameTick::counter + (val * Ticks::TICKS_PER_SECOND);
+				Command<CMD_SET_TIMETABLE_START>::Post(STR_ERROR_CAN_T_TIMETABLE_VEHICLE, v->index, this->change_timetable_all, start_tick);
+				break;
+			}
+
 			default:
 				NOT_REACHED();
 		}
@@ -695,6 +789,15 @@ struct TimetableWindow : Window {
 		this->GetWidget<NWidgetStacked>(WID_VT_ARRIVAL_DEPARTURE_SELECTION)->SetDisplayedPlane(_settings_client.gui.timetable_arrival_departure ? 0 : SZSP_NONE);
 		this->GetWidget<NWidgetStacked>(WID_VT_EXPECTED_SELECTION)->SetDisplayedPlane(_settings_client.gui.timetable_arrival_departure ? 0 : 1);
 	}
+
+	/**
+	 * In real-time mode, the timetable GUI shows relative times and needs to be redrawn every second.
+	 */
+	IntervalTimer<TimerGameTick> redraw_interval = {Ticks::TICKS_PER_SECOND, [this](auto) {
+		if (_settings_client.gui.timetable_mode == TimetableMode::Seconds) {
+			this->SetDirty();
+		}
+	}};
 };
 
 static const NWidgetPart _nested_timetable_widgets[] = {
@@ -725,7 +828,7 @@ static const NWidgetPart _nested_timetable_widgets[] = {
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_VT_CLEAR_SPEED), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_CLEAR_SPEED, STR_TIMETABLE_CLEAR_SPEED_TOOLTIP),
 			EndContainer(),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),
-				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_PUSHTXTBTN, COLOUR_GREY, WID_VT_START_DATE), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_START, STR_TIMETABLE_START_TOOLTIP),
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_VT_RESET_LATENESS), SetResize(1, 0), SetFill(1, 1), SetDataTip(STR_TIMETABLE_RESET_LATENESS, STR_TIMETABLE_RESET_LATENESS_TOOLTIP),
 			EndContainer(),
 			NWidget(NWID_VERTICAL, NC_EQUALSIZE),

src/vehicle.cpp

@@ -2333,7 +2333,7 @@ void Vehicle::HandleLoading(bool mode)
 {
 	switch (this->current_order.GetType()) {
 		case OT_LOADING: {
-			uint wait_time = std::max(this->current_order.GetTimetabledWait() - this->lateness_counter, 0);
+			TimerGameTick::Ticks wait_time = std::max(this->current_order.GetTimetabledWait() - this->lateness_counter, 0);
 
 			/* Not the first call for this tick, or still loading */
 			if (mode || !HasBit(this->vehicle_flags, VF_LOADING_FINISHED) || this->current_order_time < wait_time) return;

src/window.cpp

@@ -1807,9 +1807,12 @@ void InitWindowSystem()
 	_scrolling_viewport = false;
 	_mouse_hovering = false;
 
+	SetupWidgetDimensions();
 	NWidgetLeaf::InvalidateDimensionCache(); // Reset cached sizes of several widgets.
 	NWidgetScrollbar::InvalidateDimensionCache();
 
+	InitDepotWindowBlockSizes();
+
 	ShowFirstError();
 }