abstreet/editor/src/debug/mod.rs

mod chokepoints;

use crate::game::{GameState, Mode};
use crate::objects::ID;
use ezgui::{Color, EventCtx, EventLoopMode, GfxCtx, Key, Text, Wizard};
use map_model::RoadID;
use std::collections::{HashMap, HashSet};

pub struct DebugMode {
    state: State,
    chokepoints: Option<chokepoints::ChokepointsFinder>,
    show_original_roads: HashSet<RoadID>,
}

enum State {
    Exploring,
}

impl DebugMode {
    pub fn new() -> DebugMode {
        DebugMode {
            state: State::Exploring,
            chokepoints: None,
            show_original_roads: HashSet::new(),
        }
    }

    pub fn event(state: &mut GameState, ctx: &mut EventCtx) -> EventLoopMode {
        match state.mode {
            Mode::Debug(ref mut mode) => {
                ctx.canvas.handle_event(ctx.input);
                state.ui.state.primary.current_selection =
                    state
                        .ui
                        .handle_mouseover(ctx, None, &state.ui.state.primary.sim);

                let mut txt = Text::new();
                txt.add_styled_line("Debug Mode".to_string(), None, Some(Color::BLUE), None);
                if mode.chokepoints.is_some() {
                    txt.add_line("Showing chokepoints".to_string());
                }
                if !mode.show_original_roads.is_empty() {
                    txt.add_line(format!(
                        "Showing {} original roads",
                        mode.show_original_roads.len()
                    ));
                }
                ctx.input
                    .set_mode_with_new_prompt("Debug Mode", txt, ctx.canvas);
                if ctx.input.modal_action("quit") {
                    state.mode = Mode::SplashScreen(Wizard::new(), None);
                    return EventLoopMode::InputOnly;
                }

                if ctx.input.modal_action("show/hide chokepoints") {
                    if mode.chokepoints.is_some() {
                        mode.chokepoints = None;
                    } else {
                        // TODO Nothing will actually exist. ;)
                        mode.chokepoints = Some(chokepoints::ChokepointsFinder::new(
                            &state.ui.state.primary.sim,
                        ));
                    }
                }
                if !mode.show_original_roads.is_empty() {
                    if ctx.input.modal_action("clear original roads shown") {
                        mode.show_original_roads.clear();
                    }
                }

                if let Some(ID::Lane(l)) = state.ui.state.primary.current_selection {
                    let id = state.ui.state.primary.map.get_l(l).parent;
                    if ctx
                        .input
                        .contextual_action(Key::V, &format!("show original geometry of {:?}", id))
                    {
                        mode.show_original_roads.insert(id);
                    }
                }

                EventLoopMode::InputOnly
            }
            _ => unreachable!(),
        }
    }

    pub fn draw(state: &GameState, g: &mut GfxCtx) {
        match state.mode {
            Mode::Debug(ref mode) => match mode.state {
                State::Exploring => {
                    let mut color_overrides = HashMap::new();
                    if let Some(ref chokepoints) = mode.chokepoints {
                        let color = state.ui.state.cs.get_def("chokepoint", Color::RED);
                        for l in &chokepoints.lanes {
                            color_overrides.insert(ID::Lane(*l), color);
                        }
                        for i in &chokepoints.intersections {
                            color_overrides.insert(ID::Intersection(*i), color);
                        }
                    }
                    state
                        .ui
                        .new_draw(g, None, color_overrides, &state.ui.state.primary.sim);

                    for id in &mode.show_original_roads {
                        let r = state.ui.state.primary.map.get_r(*id);
                        if let Some(pair) = r.get_center_for_side(true) {
                            let (pl, width) = pair.unwrap();
                            g.draw_polygon(
                                state
                                    .ui
                                    .state
                                    .cs
                                    .get_def("original road forwards", Color::RED.alpha(0.5)),
                                &pl.make_polygons(width),
                            );
                        }
                        if let Some(pair) = r.get_center_for_side(false) {
                            let (pl, width) = pair.unwrap();
                            g.draw_polygon(
                                state
                                    .ui
                                    .state
                                    .cs
                                    .get_def("original road backwards", Color::BLUE.alpha(0.5)),
                                &pl.make_polygons(width),
                            );
                        }
                    }
                }
            },
            _ => unreachable!(),
        }
    }
}