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use std::collections::{BTreeSet, HashSet};
use std::panic;
use anyhow::Result;
use instant::Instant;
use rand::SeedableRng;
use rand_xorshift::XorShiftRng;
use serde::{Deserialize, Serialize};
use abstio::MapName;
use abstutil::{prettyprint_usize, serialized_size_bytes, CmdArgs, Timer};
use geom::{Distance, Duration, Speed, Time};
use map_model::{
BuildingID, BusRoute, IntersectionID, LaneID, Map, ParkingLotID, Path, PathConstraints,
PathRequest, Position, Traversable,
};
pub use self::queries::{AgentProperties, DelayCause};
use crate::{
AgentID, AlertLocation, Analytics, CarID, Command, CreateCar, DrivingSimState, Event,
IntersectionSimState, OrigPersonID, PandemicModel, ParkedCar, ParkingSim, ParkingSimState,
ParkingSpot, Person, PersonID, Router, Scheduler, SidewalkPOI, SidewalkSpot, StartTripArgs,
TrafficRecorder, TransitSimState, TripID, TripInfo, TripManager, TripPhaseType, Vehicle,
VehicleSpec, VehicleType, WalkingSimState, BUS_LENGTH, LIGHT_RAIL_LENGTH, MIN_CAR_LENGTH,
};
mod queries;
const BLIND_RETRY_TO_SPAWN: Duration = Duration::const_seconds(5.0);
#[derive(Serialize, Deserialize, Clone)]
pub struct Sim {
driving: DrivingSimState,
parking: ParkingSimState,
walking: WalkingSimState,
intersections: IntersectionSimState,
transit: TransitSimState,
trips: TripManager,
#[serde(skip_serializing, skip_deserializing)]
pandemic: Option<PandemicModel>,
scheduler: Scheduler,
time: Time,
pub(crate) map_name: MapName,
pub(crate) edits_name: String,
run_name: String,
step_count: usize,
highlighted_people: Option<BTreeSet<PersonID>>,
analytics: Analytics,
#[serde(skip_serializing, skip_deserializing)]
recorder: Option<TrafficRecorder>,
#[serde(skip_serializing, skip_deserializing)]
alerts: AlertHandler,
}
pub(crate) struct Ctx<'a> {
pub parking: &'a mut ParkingSimState,
pub intersections: &'a mut IntersectionSimState,
pub scheduler: &'a mut Scheduler,
pub map: &'a Map,
pub handling_live_edits: Option<BTreeSet<AgentID>>,
}
#[derive(Clone)]
pub struct SimOptions {
pub run_name: String,
pub use_freeform_policy_everywhere: bool,
pub dont_block_the_box: bool,
pub recalc_lanechanging: bool,
pub break_turn_conflict_cycles: bool,
pub handle_uber_turns: bool,
pub enable_pandemic_model: Option<XorShiftRng>,
pub alerts: AlertHandler,
pub infinite_parking: bool,
pub disable_turn_conflicts: bool,
pub skip_analytics: bool,
}
impl std::default::Default for SimOptions {
fn default() -> SimOptions {
SimOptions::new("tmp")
}
}
impl SimOptions {
pub fn from_args(args: &mut CmdArgs, rng_seed: u64) -> SimOptions {
SimOptions {
run_name: args
.optional("--run_name")
.unwrap_or_else(|| "unnamed".to_string()),
use_freeform_policy_everywhere: args.enabled("--freeform_policy"),
dont_block_the_box: !args.enabled("--disable_block_the_box"),
recalc_lanechanging: !args.enabled("--disable_recalc_lc"),
break_turn_conflict_cycles: !args.enabled("--disable_break_turn_conflict_cycles"),
handle_uber_turns: !args.enabled("--disable_handle_uber_turns"),
enable_pandemic_model: if args.enabled("--pandemic") {
Some(XorShiftRng::seed_from_u64(rng_seed))
} else {
None
},
alerts: args
.optional("--alerts")
.map(|x| match x.as_ref() {
"print" => AlertHandler::Print,
"block" => AlertHandler::Block,
"silence" => AlertHandler::Silence,
_ => panic!("Bad --alerts={}. Must be print|block|silence", x),
})
.unwrap_or(AlertHandler::Print),
infinite_parking: args.enabled("--infinite_parking"),
disable_turn_conflicts: args.enabled("--disable_turn_conflicts"),
skip_analytics: args.enabled("--skip_analytics"),
}
}
}
#[derive(Clone)]
pub enum AlertHandler {
Print,
Block,
Silence,
}
impl std::default::Default for AlertHandler {
fn default() -> AlertHandler {
AlertHandler::Print
}
}
impl SimOptions {
pub fn new(run_name: &str) -> SimOptions {
SimOptions {
run_name: run_name.to_string(),
use_freeform_policy_everywhere: false,
dont_block_the_box: true,
recalc_lanechanging: true,
break_turn_conflict_cycles: true,
handle_uber_turns: true,
enable_pandemic_model: None,
alerts: AlertHandler::Print,
infinite_parking: false,
disable_turn_conflicts: false,
skip_analytics: false,
}
}
}
impl Sim {
pub fn new(map: &Map, mut opts: SimOptions) -> Sim {
let mut timer = Timer::new("create blank sim");
let mut scheduler = Scheduler::new();
if map.get_name() == &MapName::seattle("arboretum")
|| map.get_name() == &MapName::seattle("aurora_central")
|| map.get_name() == &MapName::seattle("aurora_north")
|| map.get_name() == &MapName::seattle("aurora_south")
|| map.get_name() == &MapName::new("gb", "poundbury", "center")
|| map.get_name() == &MapName::new("us", "phoenix", "tempe")
{
opts.infinite_parking = true;
}
Sim {
driving: DrivingSimState::new(map, &opts),
parking: ParkingSimState::new(map, opts.infinite_parking, &mut timer),
walking: WalkingSimState::new(),
intersections: IntersectionSimState::new(map, &mut scheduler, &opts),
transit: TransitSimState::new(map),
trips: TripManager::new(),
pandemic: opts.enable_pandemic_model.map(PandemicModel::new),
scheduler,
time: Time::START_OF_DAY,
map_name: map.get_name().clone(),
edits_name: map.get_edits().edits_name.clone(),
run_name: opts.run_name,
step_count: 0,
highlighted_people: None,
alerts: opts.alerts,
analytics: Analytics::new(!opts.skip_analytics),
recorder: None,
}
}
pub(crate) fn spawn_trips(
&mut self,
input: Vec<(PersonID, TripInfo, StartTripArgs)>,
map: &Map,
timer: &mut Timer,
) {
timer.start_iter("spawn trips", input.len());
for (p, info, args) in input {
timer.next();
let trip = self.trips.new_trip(p, info.clone());
if let Some(msg) = info.cancellation_reason {
self.trips.cancel_unstarted_trip(trip, msg);
} else {
self.scheduler
.push(info.departure, Command::StartTrip(trip, args));
}
}
if let Some(ref mut m) = self.pandemic {
m.initialize(self.trips.get_all_people(), &mut self.scheduler);
}
self.dispatch_events(Vec::new(), map);
}
pub fn get_free_onstreet_spots(&self, l: LaneID) -> Vec<ParkingSpot> {
self.parking.get_free_onstreet_spots(l)
}
pub fn get_free_offstreet_spots(&self, b: BuildingID) -> Vec<ParkingSpot> {
self.parking.get_free_offstreet_spots(b)
}
pub fn get_free_lot_spots(&self, pl: ParkingLotID) -> Vec<ParkingSpot> {
self.parking.get_free_lot_spots(pl)
}
pub fn get_all_parking_spots(&self) -> (Vec<ParkingSpot>, Vec<ParkingSpot>) {
self.parking.get_all_parking_spots()
}
pub fn bldg_to_parked_cars(&self, b: BuildingID) -> Vec<CarID> {
self.parking.bldg_to_parked_cars(b)
}
pub fn walking_path_to_nearest_parking_spot(&self, map: &Map, b: BuildingID) -> Option<Path> {
let vehicle = Vehicle {
id: CarID {
id: 0,
vehicle_type: VehicleType::Car,
},
owner: None,
vehicle_type: VehicleType::Car,
length: MIN_CAR_LENGTH,
max_speed: None,
};
let driving_lane = map.find_driving_lane_near_building(b);
let spot = if let Some((spot, _)) = self
.parking
.get_all_free_spots(Position::start(driving_lane), &vehicle, b, map)
.get(0)
{
*spot
} else {
let (_, spot, _) =
self.parking
.path_to_free_parking_spot(driving_lane, &vehicle, b, map)?;
spot
};
let start = SidewalkSpot::building(b, map).sidewalk_pos;
let end = SidewalkSpot::parking_spot(spot, map, &self.parking).sidewalk_pos;
map.pathfind(PathRequest::walking(start, end)).ok()
}
pub(crate) fn new_person(
&mut self,
orig_id: Option<OrigPersonID>,
ped_speed: Speed,
vehicle_specs: Vec<VehicleSpec>,
) -> &Person {
self.trips.new_person(orig_id, ped_speed, vehicle_specs)
}
pub(crate) fn seed_parked_car(&mut self, vehicle: Vehicle, spot: ParkingSpot) {
self.parking.reserve_spot(spot, vehicle.id);
self.parking.add_parked_car(ParkedCar {
vehicle,
spot,
parked_since: self.time,
});
}
pub(crate) fn seed_bus_route(&mut self, route: &BusRoute) {
for t in &route.spawn_times {
self.scheduler.push(*t, Command::StartBus(route.id, *t));
}
}
fn start_bus(&mut self, route: &BusRoute, map: &Map) {
let path = self.transit.create_empty_route(route, map);
let (vehicle_type, length) = match route.route_type {
PathConstraints::Bus => (VehicleType::Bus, BUS_LENGTH),
PathConstraints::Train => (VehicleType::Train, LIGHT_RAIL_LENGTH),
_ => unreachable!(),
};
let vehicle = VehicleSpec {
vehicle_type,
length,
max_speed: None,
}
.make(
CarID {
id: self.trips.new_car_id(),
vehicle_type,
},
None,
);
self.scheduler.push(
self.time,
Command::SpawnCar(
CreateCar {
router: Router::follow_bus_route(vehicle.id, path),
vehicle,
maybe_parked_car: None,
trip_and_person: None,
maybe_route: Some(route.id),
},
true,
),
);
}
pub fn set_run_name(&mut self, name: String) {
self.run_name = name;
}
pub fn get_run_name(&self) -> &String {
&self.run_name
}
}
impl Sim {
fn minimal_step(
&mut self,
map: &Map,
max_dt: Duration,
maybe_cb: &mut Option<Box<dyn SimCallback>>,
) -> bool {
self.step_count += 1;
let max_time = if let Some(t) = self.scheduler.peek_next_time() {
if t > self.time + max_dt {
self.time += max_dt;
return false;
}
t
} else {
self.time += max_dt;
return false;
};
let mut halt = false;
while let Some(time) = self.scheduler.peek_next_time() {
if time > max_time {
return false;
}
if let Some(cmd) = self.scheduler.get_next() {
if self.do_step(map, time, cmd, maybe_cb) {
halt = true;
break;
}
}
}
halt
}
fn do_step(
&mut self,
map: &Map,
time: Time,
cmd: Command,
maybe_cb: &mut Option<Box<dyn SimCallback>>,
) -> bool {
self.time = time;
let mut events = Vec::new();
let mut halt = false;
let mut ctx = Ctx {
parking: &mut self.parking,
intersections: &mut self.intersections,
scheduler: &mut self.scheduler,
map,
handling_live_edits: None,
};
match cmd {
Command::StartTrip(id, args) => {
self.trips.start_trip(self.time, id, args, &mut ctx);
}
Command::SpawnCar(create_car, retry_if_no_room) => {
let constraints = create_car.vehicle.vehicle_type.to_constraints();
let mut ok = true;
for step in create_car.router.get_path().get_steps() {
match step.as_traversable() {
Traversable::Lane(l) => {
if !constraints.can_use(ctx.map.get_l(l), ctx.map) {
ok = false;
break;
}
}
Traversable::Turn(t) => {
if ctx.map.maybe_get_t(t).is_none() {
ok = false;
break;
}
}
}
}
if !ok {
self.trips.cancel_trip(
self.time,
create_car.trip_and_person.unwrap().0,
"path is no longer valid after map edits".to_string(),
Some(create_car.vehicle),
&mut ctx,
);
} else {
let id = create_car.vehicle.id;
let maybe_route = create_car.maybe_route;
let trip_and_person = create_car.trip_and_person;
let maybe_parked_car = create_car.maybe_parked_car.clone();
let req = create_car.router.get_path().get_req().clone();
if let Some(create_car) = self
.driving
.start_car_on_lane(self.time, create_car, &mut ctx)
{
if retry_if_no_room {
if let Some((trip, _)) = trip_and_person {
self.trips.agent_starting_trip_leg(AgentID::Car(id), trip);
}
self.driving.vehicle_waiting_to_spawn(
id,
req.start,
trip_and_person.map(|(_, p)| p),
);
self.scheduler.push(
self.time + BLIND_RETRY_TO_SPAWN,
Command::SpawnCar(create_car, retry_if_no_room),
);
} else if let Some((trip, person)) = create_car.trip_and_person {
self.trips.cancel_trip(
self.time,
trip,
format!(
"no room to spawn car for {} by {}, not retrying",
trip, person
),
Some(create_car.vehicle),
&mut ctx,
);
}
} else {
if let Some((trip, person)) = trip_and_person {
self.trips.agent_starting_trip_leg(AgentID::Car(id), trip);
events.push(Event::TripPhaseStarting(
trip,
person,
Some(req),
if id.vehicle_type == VehicleType::Car {
TripPhaseType::Driving
} else {
TripPhaseType::Biking
},
));
}
if let Some(parked_car) = maybe_parked_car {
if let ParkingSpot::Offstreet(b, _) = parked_car.spot {
events.push(Event::PersonLeavesBuilding(
trip_and_person.unwrap().1,
b,
));
}
self.parking.remove_parked_car(parked_car);
}
if let Some(route) = maybe_route {
self.transit.bus_created(id, route);
}
self.analytics
.record_demand(self.driving.get_path(id).unwrap(), map);
}
}
}
Command::SpawnPed(create_ped) => {
self.trips
.agent_starting_trip_leg(AgentID::Pedestrian(create_ped.id), create_ped.trip);
events.push(Event::TripPhaseStarting(
create_ped.trip,
create_ped.person,
Some(create_ped.path.get_req().clone()),
TripPhaseType::Walking,
));
self.analytics.record_demand(&create_ped.path, map);
match (&create_ped.start.connection, &create_ped.goal.connection) {
(
SidewalkPOI::Building(b1),
SidewalkPOI::ParkingSpot(ParkingSpot::Offstreet(b2, idx)),
) if b1 == b2 => {
self.trips.ped_reached_parking_spot(
self.time,
create_ped.id,
ParkingSpot::Offstreet(*b2, *idx),
Duration::ZERO,
Distance::ZERO,
&mut ctx,
);
}
_ => {
if let SidewalkPOI::Building(b) = &create_ped.start.connection {
events.push(Event::PersonLeavesBuilding(create_ped.person, *b));
}
self.walking
.spawn_ped(self.time, create_ped, map, &mut self.scheduler);
}
}
}
Command::UpdateCar(car) => {
self.driving.update_car(
car,
self.time,
&mut ctx,
&mut self.trips,
&mut self.transit,
&mut self.walking,
);
}
Command::UpdateLaggyHead(car) => {
self.driving.update_laggy_head(car, self.time, &mut ctx);
}
Command::UpdatePed(ped) => {
self.walking.update_ped(
ped,
self.time,
&mut ctx,
&mut self.trips,
&mut self.transit,
);
}
Command::UpdateIntersection(i) => {
self.intersections
.update_intersection(self.time, i, map, &mut self.scheduler);
}
Command::Callback(frequency) => {
self.scheduler
.push(self.time + frequency, Command::Callback(frequency));
if maybe_cb.as_mut().unwrap().run(self, map) {
halt = true;
}
}
Command::Pandemic(cmd) => {
self.pandemic
.as_mut()
.unwrap()
.handle_cmd(self.time, cmd, &mut self.scheduler);
}
Command::StartBus(r, _) => {
self.start_bus(map.get_br(r), map);
}
}
self.dispatch_events(events, map);
halt
}
fn dispatch_events(&mut self, mut events: Vec<Event>, map: &Map) {
events.extend(self.trips.collect_events());
events.extend(self.transit.collect_events());
events.extend(self.driving.collect_events());
events.extend(self.walking.collect_events());
events.extend(self.intersections.collect_events());
events.extend(self.parking.collect_events());
for ev in events {
if let Some(ref mut m) = self.pandemic {
m.handle_event(self.time, &ev, &mut self.scheduler);
}
if let Some(ref mut r) = self.recorder {
r.handle_event(self.time, &ev, map, &self.driving);
}
self.analytics.event(ev, self.time, map);
}
}
pub fn timed_step(
&mut self,
map: &Map,
dt: Duration,
maybe_cb: &mut Option<Box<dyn SimCallback>>,
timer: &mut Timer,
) {
let end_time = self.time + dt;
let start = Instant::now();
let mut last_update = Instant::now();
timer.start(format!("Advance sim to {}", end_time));
while self.time < end_time {
if self.minimal_step(map, end_time - self.time, maybe_cb) {
break;
}
if !self.analytics.alerts.is_empty() {
match self.alerts {
AlertHandler::Print => {
for (t, loc, msg) in self.analytics.alerts.drain(..) {
println!("Alert at {} ({:?}): {}", t, loc, msg);
}
}
AlertHandler::Block => {
for (t, loc, msg) in &self.analytics.alerts {
println!("Alert at {} ({:?}): {}", t, loc, msg);
}
break;
}
AlertHandler::Silence => {
self.analytics.alerts.clear();
}
}
}
if Duration::realtime_elapsed(last_update) >= Duration::seconds(1.0) {
println!(
"- After {}, the sim is at {}. {} live agents",
Duration::realtime_elapsed(start),
self.time,
prettyprint_usize(self.num_active_agents()),
);
last_update = Instant::now();
}
}
timer.stop(format!("Advance sim to {}", end_time));
}
pub fn tiny_step(&mut self, map: &Map, maybe_cb: &mut Option<Box<dyn SimCallback>>) {
self.timed_step(
map,
Duration::seconds(0.1),
maybe_cb,
&mut Timer::throwaway(),
);
}
pub fn time_limited_step(
&mut self,
map: &Map,
dt: Duration,
real_time_limit: Duration,
maybe_cb: &mut Option<Box<dyn SimCallback>>,
) {
let started_at = Instant::now();
let end_time = self.time + dt;
while self.time < end_time && Duration::realtime_elapsed(started_at) < real_time_limit {
if self.minimal_step(map, end_time - self.time, maybe_cb) {
break;
}
if !self.analytics.alerts.is_empty() {
match self.alerts {
AlertHandler::Print => {
for (t, loc, msg) in self.analytics.alerts.drain(..) {
println!("Alert at {} ({:?}): {}", t, loc, msg);
}
}
AlertHandler::Block => {
for (t, loc, msg) in &self.analytics.alerts {
println!("Alert at {} ({:?}): {}", t, loc, msg);
}
break;
}
AlertHandler::Silence => {
self.analytics.alerts.clear();
}
}
}
}
}
pub fn dump_before_abort(&self) {
println!("At {}", self.time);
if let Some(path) = self.find_previous_savestate(self.time) {
println!("Debug from {}", path);
}
}
}
impl Sim {
pub fn save_dir(&self) -> String {
abstio::path_all_saves(&self.map_name, &self.edits_name, &self.run_name)
}
fn save_path(&self, base_time: Time) -> String {
abstio::path_save(
&self.map_name,
&self.edits_name,
&self.run_name,
base_time.as_filename(),
)
}
pub fn save(&mut self) -> String {
if false {
println!("sim savestate breakdown:");
println!(
"- driving: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.driving))
);
println!(
"- parking: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.parking))
);
println!(
"- walking: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.walking))
);
println!(
"- intersections: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.intersections))
);
println!(
"- transit: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.transit))
);
println!(
"- trips: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.trips))
);
println!(
"- scheduler: {} bytes",
prettyprint_usize(serialized_size_bytes(&self.scheduler))
);
}
let path = self.save_path(self.time);
abstio::write_binary(path.clone(), self);
path
}
pub fn find_previous_savestate(&self, base_time: Time) -> Option<String> {
abstio::find_prev_file(self.save_path(base_time))
}
pub fn find_next_savestate(&self, base_time: Time) -> Option<String> {
abstio::find_next_file(self.save_path(base_time))
}
pub fn load_savestate(path: String, timer: &mut Timer) -> Result<Sim> {
abstio::maybe_read_binary(path, timer)
}
}
impl Sim {
pub fn handle_live_edited_traffic_signals(&mut self, map: &Map) {
self.intersections
.handle_live_edited_traffic_signals(self.time, map, &mut self.scheduler)
}
pub fn handle_live_edits(&mut self, map: &Map, timer: &mut Timer) -> (usize, usize) {
self.edits_name = map.get_edits().edits_name.clone();
let (affected, num_parked_cars) = self.find_trips_affected_by_live_edits(map, timer);
let num_trips_cancelled = affected.len();
let affected_agents: BTreeSet<AgentID> = affected.iter().map(|(a, _)| *a).collect();
let mut ctx = Ctx {
parking: &mut self.parking,
intersections: &mut self.intersections,
scheduler: &mut self.scheduler,
map,
handling_live_edits: Some(affected_agents),
};
for (agent, trip) in affected {
match agent {
AgentID::Car(car) => {
let vehicle = self.driving.delete_car(car, self.time, &mut ctx);
self.trips.cancel_trip(
self.time,
trip,
"map edited without reset".to_string(),
Some(vehicle),
&mut ctx,
);
self.trips.trip_abruptly_cancelled(trip, AgentID::Car(car));
}
AgentID::Pedestrian(ped) => {
self.walking.delete_ped(ped, &mut ctx);
self.trips.cancel_trip(
self.time,
trip,
"map edited without reset".to_string(),
None,
&mut ctx,
);
self.trips
.trip_abruptly_cancelled(trip, AgentID::Pedestrian(ped));
}
AgentID::BusPassenger(_, _) => unreachable!(),
}
}
self.driving.handle_live_edits(map);
self.intersections.handle_live_edits(map);
(num_trips_cancelled, num_parked_cars)
}
fn find_trips_affected_by_live_edits(
&mut self,
map: &Map,
timer: &mut Timer,
) -> (BTreeSet<(AgentID, TripID)>, usize) {
let mut affected: BTreeSet<(AgentID, TripID)> = BTreeSet::new();
{
let (edited_lanes, _) = map.get_edits().changed_lanes(map);
let mut closed_intersections = HashSet::new();
for i in map.get_edits().original_intersections.keys() {
if map.get_i(*i).is_closed() {
closed_intersections.insert(*i);
}
}
for (a, trip) in self.trips.active_agents_and_trips() {
if let Some(path) = self.get_path(*a) {
if path
.get_steps()
.iter()
.any(|step| match step.as_traversable() {
Traversable::Lane(l) => edited_lanes.contains(&l),
Traversable::Turn(t) => {
closed_intersections.contains(&t.parent)
|| edited_lanes.contains(&t.src)
|| edited_lanes.contains(&t.dst)
}
})
{
affected.insert((*a, *trip));
}
}
}
affected.extend(
self.driving
.find_vehicles_affected_by_live_edits(&closed_intersections, &edited_lanes),
);
}
let num_evicted = {
let (evicted_cars, cars_parking_in_the_void) =
self.parking.handle_live_edits(map, timer);
let num_evicted = evicted_cars.len();
affected.extend(self.walking.find_trips_to_parking(evicted_cars));
for car in cars_parking_in_the_void {
let a = AgentID::Car(car);
affected.insert((a, self.agent_to_trip(a).unwrap()));
}
if !self.parking.is_infinite() {
let (filled, avail) = self.parking.get_all_parking_spots();
let mut all_spots: BTreeSet<ParkingSpot> = BTreeSet::new();
all_spots.extend(filled);
all_spots.extend(avail);
affected.extend(self.driving.find_trips_to_edited_parking(all_spots));
}
num_evicted
};
(affected, num_evicted)
}
}
impl Sim {
pub fn delete_car(&mut self, id: CarID, map: &Map) {
if let Some(trip) = self.agent_to_trip(AgentID::Car(id)) {
let mut ctx = Ctx {
parking: &mut self.parking,
intersections: &mut self.intersections,
scheduler: &mut self.scheduler,
map,
handling_live_edits: None,
};
let vehicle = self.driving.delete_car(id, self.time, &mut ctx);
self.trips.cancel_trip(
self.time,
trip,
format!("{} deleted manually through the UI", id),
Some(vehicle),
&mut ctx,
);
} else {
println!("{} has no trip?!", id);
}
}
pub fn clear_alerts(&mut self) -> Vec<(Time, AlertLocation, String)> {
std::mem::take(&mut self.analytics.alerts)
}
}
pub trait SimCallback: downcast_rs::Downcast {
fn run(&mut self, sim: &Sim, map: &Map) -> bool;
}
downcast_rs::impl_downcast!(SimCallback);
impl Sim {
pub fn set_periodic_callback(&mut self, frequency: Duration) {
self.scheduler
.push(self.time + frequency, Command::Callback(frequency));
}
pub fn unset_periodic_callback(&mut self) {
self.scheduler
.cancel(Command::Callback(Duration::seconds(1.0)));
}
}
impl Sim {
pub fn record_traffic_for(&mut self, intersections: BTreeSet<IntersectionID>) {
assert!(self.recorder.is_none());
self.recorder = Some(TrafficRecorder::new(intersections));
}
pub fn num_recorded_trips(&self) -> Option<usize> {
Some(self.recorder.as_ref()?.num_recorded_trips())
}
pub fn save_recorded_traffic(&mut self, map: &Map) {
self.recorder.take().unwrap().save(map);
}
}
impl Sim {
pub fn set_highlighted_people(&mut self, people: BTreeSet<PersonID>) {
self.highlighted_people = Some(people);
}
}