basic heatmap showing busiest roads and intersections. have to revive

Sim Events kind of.

abstutil/src/collections.rs

@@ -75,6 +75,12 @@ impl<T: Ord + PartialEq> Counter<T> {
     pub fn get(&self, val: T) -> usize {
         self.map.get(&val).cloned().unwrap_or(0)
     }
+
+    pub fn sorted_asc(&self) -> Vec<&T> {
+        let mut list = self.map.iter().collect::<Vec<_>>();
+        list.sort_by_key(|(_, cnt)| *cnt);
+        list.into_iter().map(|(t, _)| t).collect()
+    }
 }
 
 pub fn wraparound_get<T>(vec: &Vec<T>, idx: isize) -> &T {

docs/TODO_logistic.md

@@ -3,7 +3,6 @@
 - enable more clippy lints
 - enforce consistent style (derive order, struct initialization order)
 
-- update with mission statement (democratized urb p, that quote, refashion existing space cheaply)
 - trailer
 	- show common parts of routes in A/B, point of divergence
 	- "Two parallel universes sit at your fingertips, and with the flick of a key, you can glide between the two. Buses jumping past traffic in one world, snarly traffic jam in the other. An A/B test revealing what currently is, and what could be, compared meticulously and deterministically. A/B Street -- which world do you prefer?"

docs/TODO_quality.md

@@ -22,9 +22,6 @@
 	- deal with loop roads?
 	- model U-turns
 
-- degenerate-2's should only have one crosswalk
-	- then make them thinner
-
 - car turns often clip sidewalk corners now
 - draw SharedSidewalkCorners just around the ped path, not arbitrarily thick
 	- dont forget to draw the notches
@@ -84,10 +81,6 @@
 		- just revert intersection and warn
 		- or store overrides more granularly and warn or do something reasonable
 
-## Release
-
-- publish the map data
-
 ## Sim bugs/tests needed
 
 - do bikes use bike lanes?
@@ -95,11 +88,11 @@
 	- make sure that we can jump to a ped on a bus and see the bus
 - park/unpark needs to jump two lanes in the case of crossing a bike lane or something
 	- should only be able to park from the closest lane, though!
+- explicit tests making cars park at 0 and max_dist, peds walk to 0 and max_dist
 
 ## Discrete-event sim model
 
 - cleanup after the cutover
-	- explicit tests making cars park at 0 and max_dist, peds walk to 0 and max_dist
 	- proper intersection policies, by seeing full view
 	- time travel mode can be very smart
 	- dupe code for initially spawning vs spawning when a trip leg starts.

docs/TODO_ux.md

@@ -2,9 +2,6 @@
 
 ## Fix existing stuff
 
-- try showing traffic signals by little boxes at the end of lanes
-	- red circle means right turn on red OK, red right arrow means nope, green means normal turns ok, green arrow means protected left, crosswalk hand or stick figure
-
 - if a lane could feasibly have multiple turn options but doesnt, print "ONLY"
 - audit all panics
 - tune text color, size, padding
@@ -15,8 +12,6 @@
 - yellow or flashing red/yellow for yields
 - text box entry: highlight char looks like replace mode; draw it btwn chars
 
-- traffic signal cycles go offscreen sometimes!
-
 - navigator
 	- show options on map
 	- stop jumping text size
@@ -27,7 +22,6 @@
 - when dragging, dont give mouse movement to UI elements
 - start context menu when left click releases and we're not dragging
 - can we change labels in modal or top menu? show/hide
-- label sections of modal menus
 - distinguish hints from status of modal menus, for hiding purposes
 - move context menus out of ezgui
 	- simplify/remove UserInput.
@@ -43,8 +37,6 @@
 ## Better rendering
 
 - depict residential bldg occupany size somehow
-- render overlapping peds reasonably
-- draw moving / blocked colors (gradually more red as they wait longer)
 - render cars with textures?
 - rooftops
 	- https://thumbs.dreamstime.com/b/top-view-city-street-asphalt-transport-people-walking-down-sidewalk-intersecting-road-pedestrian-81034411.jpg

game/src/common/colors.rs

@@ -76,6 +76,7 @@ impl RoadColorerBuilder {
 pub struct ObjectColorerBuilder {
     zoomed_override_colors: HashMap<ID, Color>,
     legend: ColorLegend,
+    roads: Vec<(RoadID, Color)>,
 }
 
 pub struct ObjectColorer {
@@ -104,14 +105,19 @@ impl ObjectColorerBuilder {
         ObjectColorerBuilder {
             zoomed_override_colors: HashMap::new(),
             legend: ColorLegend::new(title, rows),
+            roads: Vec::new(),
         }
     }
 
     pub fn add(&mut self, id: ID, color: Color) {
-        self.zoomed_override_colors.insert(id, color);
+        if let ID::Road(r) = id {
+            self.roads.push((r, color));
+        } else {
+            self.zoomed_override_colors.insert(id, color);
+        }
     }
 
-    pub fn build(self, ctx: &mut EventCtx, map: &Map) -> ObjectColorer {
+    pub fn build(mut self, ctx: &mut EventCtx, map: &Map) -> ObjectColorer {
         let mut batch = GeomBatch::new();
         for (id, color) in &self.zoomed_override_colors {
             let poly = match id {
@@ -121,6 +127,12 @@ impl ObjectColorerBuilder {
             };
             batch.push(*color, poly);
         }
+        for (r, color) in self.roads {
+            batch.push(color, map.get_r(r).get_thick_polygon().unwrap());
+            for l in map.get_r(r).all_lanes() {
+                self.zoomed_override_colors.insert(ID::Lane(l), color);
+            }
+        }
         ObjectColorer {
             zoomed_override_colors: self.zoomed_override_colors,
             unzoomed: ctx.prerender.upload(batch),

game/src/sandbox/mod.rs

@@ -1,7 +1,8 @@
 mod score;
 mod spawner;
-mod stats;
+mod thruput_stats;
 mod time_travel;
+mod trip_stats;
 
 use crate::common::{
     time_controls, AgentTools, CommonState, ObjectColorer, ObjectColorerBuilder, RoadColorer,
@@ -25,7 +26,8 @@ pub struct SandboxMode {
     speed: SpeedControls,
     agent_tools: AgentTools,
     pub time_travel: time_travel::InactiveTimeTravel,
-    stats: stats::TripStats,
+    trip_stats: trip_stats::TripStats,
+    thruput_stats: thruput_stats::ThruputStats,
     common: CommonState,
     parking_heatmap: Option<(Duration, RoadColorer)>,
     intersection_delay_heatmap: Option<(Duration, ObjectColorer)>,
@@ -38,7 +40,10 @@ impl SandboxMode {
             speed: SpeedControls::new(ctx, None),
             agent_tools: AgentTools::new(ctx),
             time_travel: time_travel::InactiveTimeTravel::new(),
-            stats: stats::TripStats::new(ui.primary.current_flags.sim_flags.opts.record_stats),
+            trip_stats: trip_stats::TripStats::new(
+                ui.primary.current_flags.sim_flags.opts.record_stats,
+            ),
+            thruput_stats: thruput_stats::ThruputStats::new(),
             common: CommonState::new(),
             parking_heatmap: None,
             intersection_delay_heatmap: None,
@@ -68,6 +73,7 @@ impl SandboxMode {
                         (hotkey(Key::T), "start time traveling"),
                         (hotkey(Key::Q), "scoreboard"),
                         (None, "trip stats"),
+                        (None, "throughput stats"),
                     ],
                     vec![
                         (hotkey(Key::Escape), "quit"),
@@ -88,7 +94,8 @@ impl SandboxMode {
 impl State for SandboxMode {
     fn event(&mut self, ctx: &mut EventCtx, ui: &mut UI) -> Transition {
         self.time_travel.record(ui);
-        self.stats.record(ui);
+        self.trip_stats.record(ui);
+        self.thruput_stats.record(ui);
 
         {
             let mut txt = Text::prompt("Sandbox Mode");
@@ -124,7 +131,18 @@ impl State for SandboxMode {
             return Transition::Push(Box::new(score::Scoreboard::new(ctx, ui)));
         }
         if self.menu.action("trip stats") {
-            return Transition::Push(Box::new(stats::ShowStats::new(&self.stats, ui, ctx)));
+            if let Some(s) = trip_stats::ShowStats::new(&self.trip_stats, ui, ctx) {
+                return Transition::Push(Box::new(s));
+            } else {
+                println!("No trip stats available");
+            }
+        }
+        if self.menu.action("throughput stats") {
+            return Transition::Push(Box::new(thruput_stats::ShowStats::new(
+                &self.thruput_stats,
+                ui,
+                ctx,
+            )));
         }
         if self.menu.action("show/hide parking availability") {
             if self.parking_heatmap.is_some() {

game/src/sandbox/thruput_stats.rs

@@ -0,0 +1,123 @@
+use crate::common::{ObjectColorer, ObjectColorerBuilder};
+use crate::game::{State, Transition};
+use crate::helpers::ID;
+use crate::ui::UI;
+use abstutil::Counter;
+use ezgui::{hotkey, Color, EventCtx, GfxCtx, Key, ModalMenu};
+use map_model::{IntersectionID, RoadID, Traversable};
+use sim::Event;
+
+pub struct ThruputStats {
+    count_per_road: Counter<RoadID>,
+    count_per_intersection: Counter<IntersectionID>,
+}
+
+impl ThruputStats {
+    pub fn new() -> ThruputStats {
+        ThruputStats {
+            count_per_road: Counter::new(),
+            count_per_intersection: Counter::new(),
+        }
+    }
+
+    pub fn record(&mut self, ui: &mut UI) {
+        for ev in ui.primary.sim.collect_events() {
+            if let Event::AgentEntersTraversable(_, to) = ev {
+                match to {
+                    Traversable::Lane(l) => self.count_per_road.inc(ui.primary.map.get_l(l).parent),
+                    Traversable::Turn(t) => self.count_per_intersection.inc(t.parent),
+                };
+            }
+        }
+    }
+}
+
+pub struct ShowStats {
+    menu: ModalMenu,
+    heatmap: ObjectColorer,
+}
+
+impl State for ShowStats {
+    fn event(&mut self, ctx: &mut EventCtx, ui: &mut UI) -> Transition {
+        ctx.canvas.handle_event(ctx.input);
+        if ctx.redo_mouseover() {
+            ui.recalculate_current_selection(ctx);
+        }
+
+        self.menu.handle_event(ctx, None);
+        if self.menu.action("quit") {
+            return Transition::Pop;
+        }
+        Transition::Keep
+    }
+
+    fn draw_default_ui(&self) -> bool {
+        false
+    }
+
+    fn draw(&self, g: &mut GfxCtx, ui: &UI) {
+        self.heatmap.draw(g, ui);
+        self.menu.draw(g);
+    }
+}
+
+impl ShowStats {
+    pub fn new(stats: &ThruputStats, ui: &UI, ctx: &mut EventCtx) -> ShowStats {
+        let light = Color::GREEN;
+        let medium = Color::YELLOW;
+        let heavy = Color::RED;
+        let mut colorer = ObjectColorerBuilder::new(
+            "Throughput",
+            vec![
+                ("< 50%ile", light),
+                ("< 90%ile", medium),
+                (">= 90%ile", heavy),
+            ],
+        );
+
+        // TODO If there are many duplicate counts, arbitrarily some will look heavier! Find the
+        // disribution of counts instead.
+        // TODO Actually display the counts at these percentiles
+        // TODO Dump the data in debug mode
+        {
+            let roads = stats.count_per_road.sorted_asc();
+            let p50_idx = ((roads.len() as f64) * 0.5) as usize;
+            let p90_idx = ((roads.len() as f64) * 0.9) as usize;
+            for (idx, r) in roads.into_iter().enumerate() {
+                let color = if idx < p50_idx {
+                    light
+                } else if idx < p90_idx {
+                    medium
+                } else {
+                    heavy
+                };
+                colorer.add(ID::Road(*r), color);
+            }
+        }
+        // TODO dedupe
+        {
+            let intersections = stats.count_per_intersection.sorted_asc();
+            let p50_idx = ((intersections.len() as f64) * 0.5) as usize;
+            let p90_idx = ((intersections.len() as f64) * 0.9) as usize;
+            for (idx, i) in intersections.into_iter().enumerate() {
+                let color = if idx < p50_idx {
+                    light
+                } else if idx < p90_idx {
+                    medium
+                } else {
+                    heavy
+                };
+                colorer.add(ID::Intersection(*i), color);
+            }
+        }
+
+        ShowStats {
+            menu: ModalMenu::new(
+                "Thruput Stats",
+                vec![vec![(hotkey(Key::Escape), "quit")]],
+                ctx,
+            ),
+            heatmap: colorer.build(ctx, &ui.primary.map),
+        }
+    }
+}

game/src/sandbox/trip_stats.rs

@@ -104,7 +104,11 @@ impl State for ShowStats {
 }
 
 impl ShowStats {
-    pub fn new(stats: &TripStats, ui: &UI, ctx: &mut EventCtx) -> ShowStats {
+    pub fn new(stats: &TripStats, ui: &UI, ctx: &mut EventCtx) -> Option<ShowStats> {
+        if stats.samples.is_empty() {
+            return None;
+        }
+
         let mut batch = GeomBatch::new();
         let mut labels = MultiText::new();
 
@@ -184,9 +188,6 @@ impl ShowStats {
         }
 
         for (_, color, getter) in lines {
-            if stats.samples.is_empty() {
-                continue;
-            }
             let mut pts = Vec::new();
             if max_y == 0 {
                 pts.push(Pt2D::new(x1, y2));
@@ -217,12 +218,12 @@ impl ShowStats {
             "{} samples",
             abstutil::prettyprint_usize(stats.samples.len())
         )));
-        ShowStats {
+        Some(ShowStats {
             menu: ModalMenu::new("Trip Stats", vec![vec![(hotkey(Key::Escape), "quit")]], ctx)
                 .set_prompt(ctx, txt),
             draw: ctx.prerender.upload(batch),
             labels,
             legend,
-        }
+        })
     }
 }

sim/src/events.rs

@@ -19,6 +19,5 @@ pub enum Event {
 
     BikeStoppedAtSidewalk(CarID, LaneID),
 
-    // TODO Remove this one
     AgentEntersTraversable(AgentID, Traversable),
 }

sim/src/mechanics/driving.rs

@@ -1,7 +1,7 @@
 use crate::mechanics::car::{Car, CarState};
 use crate::mechanics::queue::Queue;
 use crate::{
-    ActionAtEnd, AgentID, CarID, Command, CreateCar, DistanceInterval, DrawCarInput,
+    ActionAtEnd, AgentID, CarID, Command, CreateCar, DistanceInterval, DrawCarInput, Event,
     IntersectionSimState, ParkedCar, ParkingSimState, Scheduler, TimeInterval, TransitSimState,
     TripManager, TripPositions, UnzoomedAgent, WalkingSimState, FOLLOWING_DISTANCE,
 };
@@ -32,6 +32,7 @@ pub struct DrivingSimState {
         deserialize_with = "deserialize_btreemap"
     )]
     queues: BTreeMap<Traversable, Queue>,
+    events: Vec<Event>,
 }
 
 impl DrivingSimState {
@@ -39,6 +40,7 @@ impl DrivingSimState {
         let mut sim = DrivingSimState {
             cars: BTreeMap::new(),
             queues: BTreeMap::new(),
+            events: Vec::new(),
         };
 
         for l in map.all_lanes() {
@@ -342,6 +344,10 @@ impl DrivingSimState {
                 car.state = car.crossing_state(Distance::ZERO, now, map);
                 car.blocked_since = None;
                 scheduler.push(car.state.get_end_time(), Command::UpdateCar(car.vehicle.id));
+                self.events.push(Event::AgentEntersTraversable(
+                    AgentID::Car(car.vehicle.id),
+                    goto,
+                ));
 
                 car.last_steps.push_front(last_step);
                 if goto.length(map) >= car.vehicle.length + FOLLOWING_DISTANCE {
@@ -899,4 +905,8 @@ impl DrivingSimState {
         }
         false
     }
+
+    pub fn collect_events(&mut self) -> Vec<Event> {
+        std::mem::replace(&mut self.events, Vec::new())
+    }
 }

sim/src/mechanics/walking.rs

@@ -1,6 +1,6 @@
 use crate::{
     AgentID, AgentMetadata, Command, CreatePedestrian, DistanceInterval, DrawPedCrowdInput,
-    DrawPedestrianInput, IntersectionSimState, ParkingSimState, ParkingSpot, PedestrianID,
+    DrawPedestrianInput, Event, IntersectionSimState, ParkingSimState, ParkingSpot, PedestrianID,
     Scheduler, SidewalkPOI, SidewalkSpot, TimeInterval, TransitSimState, TripID, TripManager,
     TripPositions, UnzoomedAgent,
 };
@@ -22,6 +22,7 @@ pub struct WalkingSimState {
         deserialize_with = "deserialize_multimap"
     )]
     peds_per_traversable: MultiMap<Traversable, PedestrianID>,
+    events: Vec<Event>,
 }
 
 impl WalkingSimState {
@@ -29,6 +30,7 @@ impl WalkingSimState {
         WalkingSimState {
             peds: BTreeMap::new(),
             peds_per_traversable: MultiMap::new(),
+            events: Vec::new(),
         }
     }
 
@@ -164,6 +166,7 @@ impl WalkingSimState {
                         map,
                         intersections,
                         &mut self.peds_per_traversable,
+                        &mut self.events,
                         scheduler,
                     ) {
                         scheduler.push(ped.state.get_end_time(), Command::UpdatePed(ped.id));
@@ -180,6 +183,7 @@ impl WalkingSimState {
                     map,
                     intersections,
                     &mut self.peds_per_traversable,
+                    &mut self.events,
                     scheduler,
                 ) {
                     scheduler.push(ped.state.get_end_time(), Command::UpdatePed(ped.id));
@@ -377,6 +381,10 @@ impl WalkingSimState {
 
         (loners, crowds)
     }
+
+    pub fn collect_events(&mut self) -> Vec<Event> {
+        std::mem::replace(&mut self.events, Vec::new())
+    }
 }
 
 #[derive(Serialize, Deserialize, PartialEq)]
@@ -529,6 +537,7 @@ impl Pedestrian {
         map: &Map,
         intersections: &mut IntersectionSimState,
         peds_per_traversable: &mut MultiMap<Traversable, PedestrianID>,
+        events: &mut Vec<Event>,
         scheduler: &mut Scheduler,
     ) -> bool {
         if let PathStep::Turn(t) = self.path.next_step() {
@@ -554,6 +563,10 @@ impl Pedestrian {
         };
         self.state = self.crossing_state(start_dist, now, map);
         peds_per_traversable.insert(self.path.current_step().as_traversable(), self.id);
+        events.push(Event::AgentEntersTraversable(
+            AgentID::Pedestrian(self.id),
+            self.path.current_step().as_traversable(),
+        ));
         true
     }
 }

sim/src/sim.rs

@@ -50,10 +50,7 @@ pub struct Sim {
     #[derivative(PartialEq = "ignore")]
     #[serde(skip_serializing, skip_deserializing)]
     trip_positions: Option<TripPositions>,
-
-    #[derivative(PartialEq = "ignore")]
-    #[serde(skip_serializing, skip_deserializing)]
-    events_since_last_step: Vec<Event>,
+    // TODO Maybe the buffered events in child objects should also have this.
 }
 
 #[derive(Clone)]
@@ -112,7 +109,6 @@ impl Sim {
             run_name: opts.run_name,
             step_count: 0,
             trip_positions: None,
-            events_since_last_step: Vec::new(),
         }
     }
 
@@ -518,12 +514,6 @@ impl Sim {
         self.time = target_time;
 
         self.trip_positions = None;
-
-        self.events_since_last_step.clear();
-        self.events_since_last_step
-            .extend(self.trips.collect_events());
-        self.events_since_last_step
-            .extend(self.transit.collect_events());
     }
 
     pub fn timed_step(&mut self, map: &Map, dt: Duration, timer: &mut Timer) {
@@ -646,8 +636,8 @@ impl Sim {
 
         let mut expectations = VecDeque::from(all_expectations);
         self.step(&map, self.time() + time_limit);
-        for ev in self.get_events_since_last_step() {
-            if ev == expectations.front().unwrap() {
+        for ev in self.collect_events() {
+            if &ev == expectations.front().unwrap() {
                 println!("At {}, met expectation {:?}", self.time, ev);
                 expectations.pop_front();
                 if expectations.is_empty() {
@@ -864,8 +854,15 @@ impl Sim {
         self.trip_positions.as_ref().unwrap()
     }
 
-    pub fn get_events_since_last_step(&self) -> &Vec<Event> {
-        &self.events_since_last_step
+    // This only supports one caller! And the result isn't time-sorted.
+    // TODO If nobody calls this, slow sad memory leak. Push style would probably be much nicer.
+    pub fn collect_events(&mut self) -> Vec<Event> {
+        let mut events = Vec::new();
+        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
     }
 
     pub fn get_canonical_pt_per_trip(&self, trip: TripID, map: &Map) -> TripResult<Pt2D> {

sim/src/trips.rs

@@ -483,7 +483,7 @@ impl TripManager {
     }
 
     pub fn collect_events(&mut self) -> Vec<Event> {
-        self.events.drain(..).collect()
+        std::mem::replace(&mut self.events, Vec::new())
     }
 
     pub fn trip_status(&self, id: TripID) -> TripStatus {