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openttd/src/timetable_cmd.cpp

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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file timetable_cmd.cpp Commands related to time tabling. */
#include "stdafx.h"
#include "command_func.h"
#include "company_func.h"
#include "date_func.h"
#include "date_type.h"
#include "window_func.h"
#include "vehicle_base.h"
#include "settings_type.h"
#include "cmd_helper.h"
#include "company_base.h"
#include "settings_type.h"
#include "scope.h"
#include "table/strings.h"
#include "safeguards.h"
/**
* Change/update a particular timetable entry.
* @param v The vehicle to change the timetable of.
* @param order_number The index of the timetable in the order list.
* @param val The new data of the timetable entry.
* @param mtf Which part of the timetable entry to change.
* @param timetabled If the new value is explicitly timetabled.
* @param ignore_lock If the change should be applied even if the value is locked.
*/
static void ChangeTimetable(Vehicle *v, VehicleOrderID order_number, uint32 val, ModifyTimetableFlags mtf, bool timetabled, bool ignore_lock = false)
{
Order *order = v->GetOrder(order_number);
int total_delta = 0;
int timetable_delta = 0;
switch (mtf) {
case MTF_WAIT_TIME:
if (!ignore_lock && order->IsWaitFixed()) return;
if (!order->IsType(OT_CONDITIONAL)) {
total_delta = val - order->GetWaitTime();
timetable_delta = (timetabled ? val : 0) - order->GetTimetabledWait();
}
order->SetWaitTime(val);
order->SetWaitTimetabled(timetabled);
break;
case MTF_TRAVEL_TIME:
if (!ignore_lock && order->IsTravelFixed()) return;
if (!order->IsType(OT_CONDITIONAL)) {
total_delta = val - order->GetTravelTime();
timetable_delta = (timetabled ? val : 0) - order->GetTimetabledTravel();
}
if (order->IsType(OT_CONDITIONAL)) assert_msg(val == order->GetTravelTime(), "%u == %u", val, order->GetTravelTime());
order->SetTravelTime(val);
order->SetTravelTimetabled(timetabled);
break;
case MTF_TRAVEL_SPEED:
order->SetMaxSpeed(val);
break;
case MTF_SET_WAIT_FIXED:
order->SetWaitFixed(val != 0);
break;
case MTF_SET_TRAVEL_FIXED:
order->SetTravelFixed(val != 0);
break;
case MTF_SET_LEAVE_TYPE:
order->SetLeaveType((OrderLeaveType)val);
break;
default:
NOT_REACHED();
}
v->orders.list->UpdateTotalDuration(total_delta);
v->orders.list->UpdateTimetableDuration(timetable_delta);
for (v = v->FirstShared(); v != nullptr; v = v->NextShared()) {
if (v->cur_real_order_index == order_number && v->current_order.Equals(*order)) {
switch (mtf) {
case MTF_WAIT_TIME:
v->current_order.SetWaitTime(val);
v->current_order.SetWaitTimetabled(timetabled);
break;
case MTF_TRAVEL_TIME:
v->current_order.SetTravelTime(val);
v->current_order.SetTravelTimetabled(timetabled);
break;
case MTF_TRAVEL_SPEED:
v->current_order.SetMaxSpeed(val);
break;
case MTF_SET_WAIT_FIXED:
v->current_order.SetWaitFixed(val != 0);
break;
case MTF_SET_TRAVEL_FIXED:
v->current_order.SetTravelFixed(val != 0);
break;
case MTF_SET_LEAVE_TYPE:
v->current_order.SetLeaveType((OrderLeaveType)val);
break;
default:
NOT_REACHED();
}
}
SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
}
}
/**
* Change timetable data of an order.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Various bitstuffed elements
* - p1 = (bit 0-19) - Vehicle with the orders to change.
* - p1 = (bit 20-27) - Order index to modify.
* - p1 = (bit 28-30) - Timetable data to change (@see ModifyTimetableFlags)
* - p1 = (bit 31) - 0 to set timetable wait/travel time, 1 to clear it
* @param p2 The amount of time to wait.
* - p2 = - The data to modify as specified by p1 bits 28-30.
* 0 to clear times, UINT16_MAX to clear speed limit.
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
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;
VehicleOrderID order_number = GB(p1, 20, 8);
Order *order = v->GetOrder(order_number);
if (order == nullptr || order->IsType(OT_IMPLICIT)) return CMD_ERROR;
ModifyTimetableFlags mtf = Extract<ModifyTimetableFlags, 28, 3>(p1);
if (mtf >= MTF_END) return CMD_ERROR;
bool clear_field = GB(p1, 31, 1) == 1;
TimetableTicks wait_time = order->GetWaitTime();
TimetableTicks travel_time = order->GetTravelTime();
int max_speed = order->GetMaxSpeed();
bool wait_fixed = order->IsWaitFixed();
bool travel_fixed = order->IsTravelFixed();
OrderLeaveType leave_type = order->GetLeaveType();
switch (mtf) {
case MTF_WAIT_TIME:
wait_time = p2;
if (clear_field) assert(wait_time == 0);
break;
case MTF_TRAVEL_TIME:
travel_time = p2;
if (clear_field) assert(travel_time == 0);
break;
case MTF_TRAVEL_SPEED:
max_speed = GB(p2, 0, 16);
if (max_speed == 0) max_speed = UINT16_MAX; // Disable speed limit.
break;
case MTF_SET_WAIT_FIXED:
wait_fixed = p2 != 0;
break;
case MTF_SET_TRAVEL_FIXED:
travel_fixed = p2 != 0;
break;
case MTF_SET_LEAVE_TYPE:
leave_type = (OrderLeaveType)p2;
if (leave_type >= OLT_END) return CMD_ERROR;
break;
default:
NOT_REACHED();
}
if (wait_time != order->GetWaitTime() || leave_type != order->GetLeaveType()) {
switch (order->GetType()) {
case OT_GOTO_STATION:
if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
break;
case OT_GOTO_DEPOT:
case OT_GOTO_WAYPOINT:
break;
case OT_CONDITIONAL:
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;
if (leave_type != order->GetLeaveType() && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
if (flags & DC_EXEC) {
switch (mtf) {
case MTF_WAIT_TIME:
/* Set time if changing the value or confirming an estimated time as timetabled. */
if (wait_time != order->GetWaitTime() || (clear_field == order->IsWaitTimetabled())) {
ChangeTimetable(v, order_number, wait_time, MTF_WAIT_TIME, !clear_field, true);
}
break;
case MTF_TRAVEL_TIME:
/* Set time if changing the value or confirming an estimated time as timetabled. */
if (travel_time != order->GetTravelTime() || (clear_field == order->IsTravelTimetabled())) {
ChangeTimetable(v, order_number, travel_time, MTF_TRAVEL_TIME, !clear_field, true);
}
break;
case MTF_TRAVEL_SPEED:
if (max_speed != order->GetMaxSpeed()) {
ChangeTimetable(v, order_number, max_speed, MTF_TRAVEL_SPEED, max_speed != UINT16_MAX, true);
}
break;
case MTF_SET_WAIT_FIXED:
if (wait_fixed != order->IsWaitFixed()) {
ChangeTimetable(v, order_number, wait_fixed ? 1 : 0, MTF_SET_WAIT_FIXED, false, true);
}
break;
case MTF_SET_TRAVEL_FIXED:
if (travel_fixed != order->IsTravelFixed()) {
ChangeTimetable(v, order_number, travel_fixed ? 1 : 0, MTF_SET_TRAVEL_FIXED, false, true);
}
break;
case MTF_SET_LEAVE_TYPE:
if (leave_type != order->GetLeaveType()) {
ChangeTimetable(v, order_number, leave_type, MTF_SET_LEAVE_TYPE, true);
}
break;
default:
break;
}
}
return CommandCost();
}
/**
* Change timetable data of all orders of a vehicle.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Various bitstuffed elements
* - p1 = (bit 0-19) - Vehicle with the orders to change.
* - p1 = (bit 20-27) - unused
* - p1 = (bit 28-30) - Timetable data to change (@see ModifyTimetableFlags)
* - p1 = (bit 31) - 0 to set timetable wait/travel time, 1 to clear it
* @param p2 The amount of time to wait.
* - p2 = (bit 0-15) - The data to modify as specified by p1 bits 28-29.
* 0 to clear times, UINT16_MAX to clear speed limit.
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdBulkChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
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;
ModifyTimetableFlags mtf = Extract<ModifyTimetableFlags, 28, 3>(p1);
if (mtf >= MTF_END) return CMD_ERROR;
if (v->GetNumOrders() == 0) return CMD_ERROR;
if (flags & DC_EXEC) {
for (VehicleOrderID order_number = 0; order_number < v->GetNumOrders(); order_number++) {
Order *order = v->GetOrder(order_number);
if (order == nullptr || order->IsType(OT_IMPLICIT)) continue;
// Exclude waypoints from set all wait times command
if (Extract<ModifyTimetableFlags, 28, 3>(p1) == MTF_WAIT_TIME && GB(p1, 31, 1) == 0 && order->IsType(OT_GOTO_WAYPOINT)) continue;
uint32 new_p1 = p1;
SB(new_p1, 20, 8, order_number);
DoCommand(tile, new_p1, p2, flags, CMD_CHANGE_TIMETABLE);
}
}
return CommandCost();
}
/**
* Clear the lateness counter to make the vehicle on time.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Various bitstuffed elements
* - p1 = (bit 0-19) - Vehicle with the orders to change.
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdSetVehicleOnTime(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
VehicleID veh = GB(p1, 0, 20);
Vehicle *v = Vehicle::GetIfValid(veh);
if (v == nullptr || !v->IsPrimaryVehicle() || v->orders.list == nullptr) return CMD_ERROR;
CommandCost ret = CheckOwnership(v->owner);
if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
v->lateness_counter = 0;
SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
}
return CommandCost();
}
/**
* Order vehicles based on their timetable. The vehicles will be sorted in order
* they would reach the first station.
*
* @param a First Vehicle pointer.
* @param b Second Vehicle pointer.
* @return Comparison value.
*/
static bool VehicleTimetableSorter(Vehicle * const &a, Vehicle * const &b)
{
VehicleOrderID a_order = a->cur_real_order_index;
VehicleOrderID b_order = b->cur_real_order_index;
int j = (int)b_order - (int)a_order;
/* Are we currently at an ordered station (un)loading? */
bool a_load = (a->current_order.IsType(OT_LOADING) && a->current_order.GetNonStopType() != ONSF_STOP_EVERYWHERE) || a->current_order.IsType(OT_LOADING_ADVANCE);
bool b_load = (b->current_order.IsType(OT_LOADING) && b->current_order.GetNonStopType() != ONSF_STOP_EVERYWHERE) || b->current_order.IsType(OT_LOADING_ADVANCE);
/* If the current order is not loading at the ordered station, decrease the order index by one since we have
* not yet arrived at the station (and thus the timetable entry; still in the travelling of the previous one).
* Since the ?_order variables are unsigned the -1 will flow under and place the vehicles going to order #0 at
* the begin of the list with vehicles arriving at #0. */
if (!a_load) a_order--;
if (!b_load) b_order--;
/* First check the order index that accounted for loading, then just the raw one. */
int i = (int)b_order - (int)a_order;
if (i != 0) return i < 0;
if (j != 0) return j < 0;
/* Look at the time we spent in this order; the higher, the closer to its destination. */
i = b->current_order_time - a->current_order_time;
if (i != 0) return i < 0;
/* If all else is equal, use some unique index to sort it the same way. */
int k = b->unitnumber - a->unitnumber;
if (k != 0) return k < 0;
return b->index < a->index;
}
/**
* Set the start date of the timetable.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Various bitstuffed elements
* - p1 = (bit 0-19) - Vehicle ID.
* - p1 = (bit 20) - Set to 1 to set timetable start for all vehicles sharing this order
* - p1 = (bit 21-31)- Timetable start date: sub-ticks
* @param p2 The timetable start date.
* @param text Not used.
* @return The error or cost of the operation.
*/
CommandCost CmdSetTimetableStart(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
bool timetable_all = HasBit(p1, 20);
Vehicle *v = Vehicle::GetIfValid(GB(p1, 0, 20));
uint16 sub_ticks = GB(p1, 21, 11);
if (v == nullptr || !v->IsPrimaryVehicle() || v->orders.list == nullptr) return CMD_ERROR;
CommandCost ret = CheckOwnership(v->owner);
if (ret.Failed()) return ret;
if (timetable_all && !v->orders.list->IsCompleteTimetable()) return CMD_ERROR;
const DateTicksScaled now = _scaled_date_ticks;
DateTicksScaled start_date_scaled = (_settings_game.economy.day_length_factor * (((DateTicksScaled)_date * DAY_TICKS) + _date_fract + (DateTicksScaled)(int32)p2)) + sub_ticks;
if (flags & DC_EXEC) {
std::vector<Vehicle *> vehs;
if (timetable_all) {
for (Vehicle *w = v->orders.list->GetFirstSharedVehicle(); w != nullptr; w = w->NextShared()) {
vehs.push_back(w);
}
} else {
vehs.push_back(v);
}
int total_duration = v->orders.list->GetTimetableTotalDuration();
int num_vehs = (uint)vehs.size();
if (num_vehs >= 2) {
std::sort(vehs.begin(), vehs.end(), &VehicleTimetableSorter);
}
int idx = vehs.begin() - std::find(vehs.begin(), vehs.end(), v);
for (Vehicle *w : vehs) {
w->lateness_counter = 0;
ClrBit(w->vehicle_flags, VF_TIMETABLE_STARTED);
/* Do multiplication, then division to reduce rounding errors. */
DateTicksScaled tt_start = start_date_scaled + ((idx * total_duration) / num_vehs);
if (tt_start < now && idx < 0) {
tt_start += total_duration;
}
w->timetable_start = tt_start / _settings_game.economy.day_length_factor;
w->timetable_start_subticks = tt_start % _settings_game.economy.day_length_factor;
SetWindowDirty(WC_VEHICLE_TIMETABLE, w->index);
++idx;
}
}
return CommandCost();
}
/**
* Start or stop filling the timetable automatically from the time the vehicle
* actually takes to complete it. When starting to autofill the current times
* are cleared and the timetable will start again from scratch.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Vehicle index.
* @param p2 Various bitstuffed elements
* - p2 = (bit 0) - Set to 1 to enable, 0 to disable autofill.
* - p2 = (bit 1) - Set to 1 to preserve waiting times in non-destructive mode
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdAutofillTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
VehicleID veh = GB(p1, 0, 20);
Vehicle *v = Vehicle::GetIfValid(veh);
if (v == nullptr || !v->IsPrimaryVehicle() || v->orders.list == nullptr) return CMD_ERROR;
CommandCost ret = CheckOwnership(v->owner);
if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
if (HasBit(p2, 0)) {
/* Start autofilling the timetable, which clears the
* "timetable has started" bit. Times are not cleared anymore, but are
* overwritten when the order is reached now. */
SetBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
/* Overwrite waiting times only if they got longer */
if (HasBit(p2, 1)) SetBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
v->timetable_start = 0;
v->timetable_start_subticks = 0;
v->lateness_counter = 0;
} else {
ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
}
for (Vehicle *v2 = v->FirstShared(); v2 != nullptr; v2 = v2->NextShared()) {
if (v2 != v) {
/* Stop autofilling; only one vehicle at a time can perform autofill */
ClrBit(v2->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v2->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
}
SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
}
}
return CommandCost();
}
/**
* Start or stop automatic management of timetables.
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Vehicle index.
* @param p2 Various bitstuffed elements
* - p2 = (bit 0) - Set to 1 to enable, 0 to disable automation.
* - p2 = (bit 1) - Ctrl was pressed. Used when disabling to keep times.
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdAutomateTimetable(TileIndex index, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
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 (flags & DC_EXEC) {
for (Vehicle *v2 = v->FirstShared(); v2 != nullptr; v2 = v2->NextShared()) {
if (HasBit(p2, 0)) {
/* Automated timetable. Set flags and clear current times. */
SetBit(v2->vehicle_flags, VF_AUTOMATE_TIMETABLE);
ClrBit(v2->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v2->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
ClrBit(v2->vehicle_flags, VF_TIMETABLE_STARTED);
v2->timetable_start = 0;
v2->timetable_start_subticks = 0;
v2->lateness_counter = 0;
v2->current_loading_time = 0;
v2->ClearSeparation();
} else {
/* De-automate timetable. Clear flags. */
ClrBit(v2->vehicle_flags, VF_AUTOMATE_TIMETABLE);
ClrBit(v2->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v2->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
v2->ClearSeparation();
if (!HasBit(p2, 1)) {
/* Ctrl wasn't pressed, so clear all timetabled times. */
ClrBit(v2->vehicle_flags, VF_TIMETABLE_STARTED);
v2->timetable_start = 0;
v2->timetable_start_subticks = 0;
v2->lateness_counter = 0;
v2->current_loading_time = 0;
}
}
SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
}
if (!HasBit(p2, 0) && !HasBit(p2, 1)) {
OrderList *orders = v->orders.list;
if (orders != nullptr) {
for (int i = 0; i < orders->GetNumOrders(); i++) {
ChangeTimetable(v, i, 0, MTF_WAIT_TIME, false);
ChangeTimetable(v, i, 0, MTF_TRAVEL_TIME, false);
}
}
}
}
return CommandCost();
}
/**
* Enable or disable auto timetable separation
* @param tile Not used.
* @param flags Operation to perform.
* @param p1 Vehicle index.
* @param p2 Various bitstuffed elements
* - p2 = (bit 0) - Set to 1 to enable, 0 to disable auto separatiom.
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdTimetableSeparation(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
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 (flags & DC_EXEC) {
for (Vehicle *v2 = v->FirstShared(); v2 != nullptr; v2 = v2->NextShared()) {
if (HasBit(p2, 0)) {
SetBit(v2->vehicle_flags, VF_TIMETABLE_SEPARATION);
} else {
ClrBit(v2->vehicle_flags, VF_TIMETABLE_SEPARATION);
}
v2->ClearSeparation();
SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
}
}
return CommandCost();
}
static inline bool IsOrderUsableForSeparation(const Order *order)
{
if (order->IsType(OT_CONDITIONAL)) {
// Auto separation is unlikely to useful work at all if one of these is present, so give up
return false;
}
if (order->GetWaitTime() == 0 && order->IsType(OT_GOTO_STATION) && !(order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION)) {
// non-station orders are permitted to have 0 wait times
return false;
}
if (order->GetTravelTime() == 0 && !order->IsTravelTimetabled()) {
// 0 travel times are permitted, if explicitly timetabled
// this is useful for depot service orders
return false;
}
return true;
}
int TimeToFinishOrder(Vehicle *v, int n)
{
int left;
Order *order = v->GetOrder(n);
int wait_time = order->GetWaitTime();
int travel_time = order->GetTravelTime();
assert(order != nullptr);
if (!IsOrderUsableForSeparation(order)) return -1;
if ((v->cur_real_order_index == n) && (v->last_station_visited == order->GetDestination())) {
if (v->current_loading_time > 0) {
left = wait_time - v->current_order_time;
} else {
left = wait_time;
}
if (left < 0) left = 0;
} else {
left = travel_time;
if (v->cur_real_order_index == n) left -= v->current_order_time;
if (left < 0) left = 0;
left +=wait_time;
}
return left;
}
int SeparationBetween(Vehicle *v1, Vehicle *v2)
{
if (v1 == v2) return -1;
int separation = 0;
int time;
int n = v1->cur_real_order_index;
while (n != v2->cur_real_order_index) {
time = TimeToFinishOrder(v1, n);
if (time == -1) return -1;
separation += time;
n++;
if (n >= v1->GetNumOrders()) n = 0;
}
int time1 = TimeToFinishOrder(v1, n);
int time2 = TimeToFinishOrder(v2, n);
if (time1 == -1 || time2 == -1) return -1;
time = time1 - time2;
if (time < 0) {
for (n = 0; n < v1->GetNumOrders(); n++) {
Order *order = v1->GetOrder(n);
if (!IsOrderUsableForSeparation(order)) return -1;
time += order->GetTravelTime() + order->GetWaitTime();
}
}
separation += time;
assert(separation >= 0);
if (separation == 0) return -1;
return separation;
}
void UpdateSeparationOrder(Vehicle *v_start)
{
/* First check if we have a vehicle ahead, and if not search for one. */
if (v_start->AheadSeparation() == nullptr) {
v_start->InitSeparation();
}
if (v_start->AheadSeparation() == nullptr) {
return;
}
/* Switch positions if necessary. */
int swaps = 0;
bool done = false;
while (!done) {
done = true;
int min_sep = SeparationBetween(v_start, v_start->AheadSeparation());
Vehicle *v = v_start;
do {
if (v != v_start) {
int tmp_sep = SeparationBetween(v_start, v);
if (tmp_sep < min_sep && tmp_sep != -1) {
swaps++;
if (swaps >= 50) {
return;
}
done = false;
v_start->ClearSeparation();
v_start->AddToSeparationBehind(v);
break;
}
}
int separation_ahead = SeparationBetween(v, v->AheadSeparation());
int separation_behind = SeparationBetween(v->BehindSeparation(), v);
if (separation_ahead != -1 && separation_behind != -1) {
Company *owner = Company::GetIfValid(v->owner);
uint8 timetable_separation_rate = owner ? owner->settings.auto_timetable_separation_rate : 100;
int new_lateness = (separation_ahead - separation_behind) / 2;
v->lateness_counter = (new_lateness * timetable_separation_rate +
v->lateness_counter * (100 - timetable_separation_rate)) / 100;
}
v = v->AheadSeparation();
} while (v != v_start);
}
}
static bool IsVehicleAtFirstWaitingLocation(const Vehicle *v)
{
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 int32 last_dispatched_offset = v->orders.list->GetScheduledDispatchLastDispatch();
const uint32 dispatch_duration = v->orders.list->GetScheduledDispatchDuration();
const int32 max_delay = v->orders.list->GetScheduledDispatchDelay();
/* Find next available slots */
for (auto current_offset : v->orders.list->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);
}
DateTicksScaled current_departure = begin_time + current_offset;
int32 minimum = _scaled_date_ticks + wait_offset - max_delay;
if (current_departure < minimum) {
current_departure += dispatch_duration * ((minimum + dispatch_duration - current_departure - 1) / dispatch_duration);
}
if (first_slot == -1 || first_slot > current_departure) {
first_slot = current_departure;
}
}
return first_slot;
}
/**
* Update the timetable for the vehicle.
* @param v The vehicle to update the timetable for.
* @param travelling Whether we just travelled or waited at a station.
*/
void UpdateVehicleTimetable(Vehicle *v, bool travelling)
{
if (!travelling) v->current_loading_time++; // +1 because this time is one tick behind
uint time_taken = v->current_order_time;
uint time_loading = v->current_loading_time;
v->current_order_time = 0;
v->current_loading_time = 0;
if (v->current_order.IsType(OT_IMPLICIT)) return; // no timetabling of auto orders
if (v->cur_real_order_index >= v->GetNumOrders()) return;
Order *real_current_order = v->GetOrder(v->cur_real_order_index);
Order *real_timetable_order = v->cur_timetable_order_index != INVALID_VEH_ORDER_ID ? v->GetOrder(v->cur_timetable_order_index) : nullptr;
auto guard = scope_guard([v, travelling]() {
/* On next call, when updating waiting time, use current order even if travel field of current order isn't being updated */
if (travelling) v->cur_timetable_order_index = v->cur_real_order_index;
});
VehicleOrderID first_manual_order = 0;
for (Order *o = v->GetFirstOrder(); o != nullptr && o->IsType(OT_IMPLICIT); o = o->next) {
++first_manual_order;
}
bool just_started = false;
/* Start scheduled dispatch at first opportunity */
if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED) && HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) {
if (IsVehicleAtFirstWaitingLocation(v) && travelling) {
/* Update scheduled information */
v->orders.list->UpdateScheduledDispatch();
const int wait_offset = (real_timetable_order == nullptr) ? 0 : real_timetable_order->GetTimetabledWait();
DateTicksScaled slot = GetScheduledDispatchTime(v, 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());
}
}
}
/* Start automated timetables at first opportunity */
if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED) && HasBit(v->vehicle_flags, VF_AUTOMATE_TIMETABLE)) {
v->ClearSeparation();
SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
/* If the lateness is set by scheduled dispatch above, do not reset */
if(!HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH)) v->lateness_counter = 0;
if (HasBit(v->vehicle_flags, VF_TIMETABLE_SEPARATION)) UpdateSeparationOrder(v);
for (v = v->FirstShared(); v != nullptr; v = v->NextShared()) {
SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
}
return;
}
/* This vehicle is arriving at the first destination in the timetable. */
if (v->cur_real_order_index == first_manual_order && travelling) {
/* If the start date hasn't been set, or it was set automatically when
* the vehicle last arrived at the first destination, update it to the
* current time. Otherwise set the late counter appropriately to when
* the vehicle should have arrived. */
just_started = !HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
if (v->timetable_start != 0) {
v->lateness_counter = _scaled_date_ticks - ((_settings_game.economy.day_length_factor * ((DateTicksScaled) v->timetable_start)) + v->timetable_start_subticks);
v->timetable_start = 0;
v->timetable_start_subticks = 0;
}
SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
}
if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) return;
if (real_timetable_order == nullptr) return;
bool autofilling = HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
bool is_conditional = real_timetable_order->IsType(OT_CONDITIONAL);
bool remeasure_wait_time = !is_conditional && (!real_timetable_order->IsWaitTimetabled() ||
(autofilling && !HasBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME)));
if (travelling && remeasure_wait_time) {
/* We just finished travelling and want to remeasure the loading time,
* so do not apply any restrictions for the loading to finish. */
v->current_order.SetWaitTime(0);
}
bool travel_field = travelling;
if (is_conditional) {
if (travelling) {
/* conditional orders use the wait field for the jump-taken travel time */
travel_field = false;
} else {
/* doesn't make sense to update wait time for conditional orders */
return;
}
} else {
assert_msg(real_timetable_order == real_current_order, "%u, %u", v->cur_real_order_index, v->cur_timetable_order_index);
}
if (just_started) return;
/* Before modifying waiting times, check whether we want to preserve bigger ones. */
if ((travelling || time_taken > real_timetable_order->GetWaitTime() || remeasure_wait_time)) {
/* Round the time taken up to the nearest timetable rounding factor
* (default: day), as this will avoid confusion for people who are
* timetabling in days, and can be 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. */
Company *owner = Company::GetIfValid(v->owner);
uint rounding_factor = owner ? owner->settings.timetable_autofill_rounding : DAY_TICKS;
uint time_to_set = CeilDiv(max(time_taken, 1U), rounding_factor) * rounding_factor;
if (travel_field && (autofilling || !real_timetable_order->IsTravelTimetabled())) {
ChangeTimetable(v, v->cur_timetable_order_index, time_to_set, MTF_TRAVEL_TIME, autofilling);
} else if (!travel_field && (autofilling || !real_timetable_order->IsWaitTimetabled())) {
ChangeTimetable(v, v->cur_timetable_order_index, time_to_set, MTF_WAIT_TIME, autofilling);
}
}
if (v->cur_real_order_index == first_manual_order && travelling) {
/* If we just started we would have returned earlier and have not reached
* this code. So obviously, we have completed our round: So turn autofill
* off again. */
ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
}
if (autofilling) return;
uint timetabled = travel_field ? real_timetable_order->GetTimetabledTravel() :
real_timetable_order->GetTimetabledWait();
/* Update the timetable to gradually shift order times towards the actual travel times. */
if (timetabled != 0 && HasBit(v->vehicle_flags, VF_AUTOMATE_TIMETABLE)) {
int32 new_time;
if (travelling) {
new_time = time_taken;
if (new_time > (int32)timetabled * 4) {
/* Possible jam, clear time and restart timetable for all vehicles.
* Otherwise we risk trains blocking 1-lane stations for long times. */
ChangeTimetable(v, v->cur_timetable_order_index, 0, travel_field ? MTF_TRAVEL_TIME : MTF_WAIT_TIME, true);
for (Vehicle *v2 = v->FirstShared(); v2 != nullptr; v2 = v2->NextShared()) {
v2->ClearSeparation();
ClrBit(v2->vehicle_flags, VF_TIMETABLE_STARTED);
SetWindowDirty(WC_VEHICLE_TIMETABLE, v2->index);
}
return;
} else if (new_time >= (int32)timetabled / 2) {
/* Compute running average, with sign conversion to avoid negative overflow.
* This is biased to favour negative adjustments */
if (new_time < (int32)timetabled) {
new_time = ((int32)timetabled * 3 + new_time * 2 + 2) / 5;
} else {
new_time = ((int32)timetabled * 9 + new_time + 5) / 10;
}
} else {
/* new time is less than half the old time, set value directly */
}
} else {
new_time = time_loading;
/* Compute running average, with sign conversion to avoid negative overflow.
* This is biased to favour positive adjustments */
if (new_time > (int32)timetabled) {
new_time = ((int32)timetabled * 3 + new_time * 2 + 2) / 5;
} else {
new_time = ((int32)timetabled * 9 + new_time + 5) / 10;
}
}
if (new_time < 1) new_time = 1;
if (new_time != (int32)timetabled) {
ChangeTimetable(v, v->cur_timetable_order_index, new_time, travel_field ? MTF_TRAVEL_TIME : MTF_WAIT_TIME, true);
}
} else if (timetabled == 0 && HasBit(v->vehicle_flags, VF_AUTOMATE_TIMETABLE)) {
/* Add times for orders that are not yet timetabled, even while not autofilling */
const int32 new_time = travelling ? time_taken : time_loading;
if (travel_field) {
ChangeTimetable(v, v->cur_timetable_order_index, new_time, MTF_TRAVEL_TIME, true);
} else {
ChangeTimetable(v, v->cur_timetable_order_index, new_time, MTF_WAIT_TIME, true);
}
}
/* Vehicles will wait at stations if they arrive early even if they are not
* timetabled to wait there, so make sure the lateness counter is updated
* when this happens. */
if (timetabled == 0 && (travelling || v->lateness_counter >= 0)) return;
if (HasBit(v->vehicle_flags, VF_TIMETABLE_SEPARATION) && HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) {
v->current_order_time = time_taken;
v->current_loading_time = time_loading;
UpdateSeparationOrder(v);
v->current_order_time = 0;
v->current_loading_time = 0;
} else if (HasBit(v->vehicle_flags, VF_SCHEDULED_DISPATCH) && HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) {
const bool is_first_waiting = IsVehicleAtFirstWaitingLocation(v);
if (is_first_waiting && travelling) {
/* Update scheduled information */
v->orders.list->UpdateScheduledDispatch();
const int wait_offset = real_timetable_order->GetTimetabledWait();
DateTicksScaled slot = GetScheduledDispatchTime(v, wait_offset);
if (slot > -1) {
v->lateness_counter = _scaled_date_ticks - slot + wait_offset;
v->orders.list->SetScheduledDispatchLastDispatch(slot - v->orders.list->GetScheduledDispatchStartTick());
} else {
v->lateness_counter -= (timetabled - time_taken);
}
} else {
v->lateness_counter -= (timetabled - time_taken);
}
} else {
v->lateness_counter -= (timetabled - time_taken);
}
/* When we are more late than this timetabled bit takes we (somewhat expensively)
* check how many ticks the (fully filled) timetable has. If a timetable cycle is
* 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 INVALID_TICKS. */
if (v->lateness_counter > (int)timetabled) {
Ticks cycle = v->orders.list->GetTimetableTotalDuration();
if (cycle != INVALID_TICKS && v->lateness_counter > cycle) {
v->lateness_counter %= cycle;
}
}
for (v = v->FirstShared(); v != nullptr; v = v->NextShared()) {
SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
}
}
void SetOrderFixedWaitTime(Vehicle *v, VehicleOrderID order_number, uint32 wait_time, bool wait_timetabled) {
ChangeTimetable(v, order_number, wait_time, MTF_WAIT_TIME, wait_timetabled, true);
ChangeTimetable(v, order_number, 1, MTF_SET_WAIT_FIXED, false, true);
}
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