use std::collections::HashSet;
use abstutil::prettyprint_usize;
use geom::{Circle, Distance, Pt2D, Time};
use map_gui::tools::{make_heatmap, HeatmapOptions};
use sim::PersonState;
use widgetry::{
Choice, Color, Drawable, EventCtx, GeomBatch, GfxCtx, HorizontalAlignment, Line, Outcome,
Panel, Text, TextExt, Toggle, VerticalAlignment, Widget,
};
use crate::app::App;
use crate::layer::{header, Layer, LayerOutcome};
pub struct Pandemic {
time: Time,
opts: Options,
draw: Drawable,
panel: Panel,
}
impl Layer for Pandemic {
fn name(&self) -> Option<&'static str> {
Some("pandemic model")
}
fn event(
&mut self,
ctx: &mut EventCtx,
app: &mut App,
minimap: &Panel,
) -> Option<LayerOutcome> {
if app.primary.sim.time() != self.time {
let mut new = Pandemic::new(ctx, app, self.opts.clone());
new.panel.restore(ctx, &self.panel);
*self = new;
}
self.panel.align_above(ctx, minimap);
match self.panel.event(ctx) {
Outcome::Clicked(x) => match x.as_ref() {
"close" => {
return Some(LayerOutcome::Close);
}
_ => unreachable!(),
},
_ => {
let new_opts = self.options();
if self.opts != new_opts {
*self = Pandemic::new(ctx, app, new_opts);
self.panel.align_above(ctx, minimap);
}
}
}
None
}
fn draw(&self, g: &mut GfxCtx, app: &App) {
self.panel.draw(g);
if g.canvas.cam_zoom < app.opts.min_zoom_for_detail {
g.redraw(&self.draw);
}
}
fn draw_minimap(&self, g: &mut GfxCtx) {
g.redraw(&self.draw);
}
}
impl Pandemic {
pub fn new(ctx: &mut EventCtx, app: &App, opts: Options) -> Pandemic {
let model = app.primary.sim.get_pandemic_model().unwrap();
let filter = |p| match opts.state {
SEIR::Sane => model.is_sane(p),
SEIR::Exposed => model.is_exposed(p),
SEIR::Infected => model.is_exposed(p),
SEIR::Recovered => model.is_recovered(p),
SEIR::Dead => model.is_dead(p),
};
let mut pts = Vec::new();
for a in app.primary.sim.get_unzoomed_agents(&app.primary.map) {
if let Some(p) = a.person {
if filter(p) {
pts.push(a.pos);
}
}
}
let mut seen_bldgs = HashSet::new();
let mut repeat_pts = Vec::new();
for person in app.primary.sim.get_all_people() {
match person.state {
PersonState::Trip(_) => {}
PersonState::Inside(b) => {
if !filter(person.id) {
continue;
}
let pt = app.primary.map.get_b(b).polygon.center();
if seen_bldgs.contains(&b) {
repeat_pts.push(pt);
} else {
seen_bldgs.insert(b);
pts.push(pt);
}
}
PersonState::OffMap => {}
}
}
let mut batch = GeomBatch::new();
let legend = if let Some(ref o) = opts.heatmap {
pts.extend(repeat_pts);
Some(make_heatmap(
ctx,
&mut batch,
app.primary.map.get_bounds(),
pts,
o,
))
} else {
let circle = Circle::new(Pt2D::new(0.0, 0.0), Distance::meters(10.0)).to_polygon();
for pt in pts {
batch.push(Color::RED.alpha(0.8), circle.translate(pt.x(), pt.y()));
}
None
};
let controls = make_controls(ctx, app, &opts, legend);
Pandemic {
time: app.primary.sim.time(),
opts,
draw: ctx.upload(batch),
panel: controls,
}
}
fn options(&self) -> Options {
let heatmap = if self.panel.is_checked("Show heatmap") {
Some(HeatmapOptions::from_controls(&self.panel))
} else {
None
};
Options {
heatmap,
state: self.panel.dropdown_value("seir"),
}
}
}
#[derive(Clone, Copy, PartialEq, Debug)]
pub enum SEIR {
Sane,
Exposed,
Infected,
Recovered,
Dead,
}
#[derive(Clone, PartialEq)]
pub struct Options {
pub heatmap: Option<HeatmapOptions>,
pub state: SEIR,
}
fn make_controls(ctx: &mut EventCtx, app: &App, opts: &Options, legend: Option<Widget>) -> Panel {
let model = app.primary.sim.get_pandemic_model().unwrap();
let pct = 100.0 / (model.count_total() as f64);
let mut col = vec![
header(ctx, "Pandemic model"),
Text::from_multiline(vec![
Line(format!(
"{} Sane ({:.1}%)",
prettyprint_usize(model.count_sane()),
(model.count_sane() as f64) * pct
)),
Line(format!(
"{} Exposed ({:.1}%)",
prettyprint_usize(model.count_exposed()),
(model.count_exposed() as f64) * pct
)),
Line(format!(
"{} Infected ({:.1}%)",
prettyprint_usize(model.count_infected()),
(model.count_infected() as f64) * pct
)),
Line(format!(
"{} Recovered ({:.1}%)",
prettyprint_usize(model.count_recovered()),
(model.count_recovered() as f64) * pct
)),
Line(format!(
"{} Dead ({:.1}%)",
prettyprint_usize(model.count_dead()),
(model.count_dead() as f64) * pct
)),
])
.draw(ctx),
Widget::row(vec![
"Filter:".draw_text(ctx),
Widget::dropdown(
ctx,
"seir",
opts.state,
vec![
Choice::new("sane", SEIR::Sane),
Choice::new("exposed", SEIR::Exposed),
Choice::new("infected", SEIR::Infected),
Choice::new("recovered", SEIR::Recovered),
Choice::new("dead", SEIR::Dead),
],
),
]),
];
col.push(Toggle::switch(
ctx,
"Show heatmap",
None,
opts.heatmap.is_some(),
));
if let Some(ref o) = opts.heatmap {
col.extend(o.to_controls(ctx, legend.unwrap()));
}
Panel::new(Widget::col(col))
.aligned(HorizontalAlignment::Right, VerticalAlignment::Center)
.build(ctx)
}