abstreet/docs/TODO_refactoring.md

TODO - Refactoring

• easier way to define magic tuneable constants
  • and maybe to recalculate fixedish things if they change?

Map layer

• fixed precision math

  • more careful geom types, with negative/positive cases
  • also bounds?
  • cant get rid of the ccw intersection check... different answer in some cases that looks bad

• maybe also the time to split into different lane types? what's similar/not between them?

  • graph querying?
  • rendering (and other UI/editor interactions)?
  • sim state?
  • Sidewalk, Parking, Street

Sim layer

• rename Car->Vehicle?
• spawning is convoluted
  • popdat trip -> Scenario SpawnTrip -> pick ped speed and make spawner's TripSpec -> create trip and schedule a Command -> last minute rewriting when executing the command
• more precise car FSM by putting scheduler pointer into carstate

ezgui layer

• probably use f32, not f64 everywhere... but after Pt2D becomes fixed size
• undo the y inversion hacks at last!
• ezgui passes EventCtx and DrawCtx with appropriate things exposed.
  • maybe move glyph ownership out of canvas entirely. dont need RefCell.
    • need to pass around a NonDrawCtx very uniformly first for this to work
  • canvas owning text-drawing is maybe a bit weird, at least API-wise
  • hide stuff inside the ctx's? canvas and prerender shouldnt even be known outside of crate
• generic World with quadtree should have actions on objects
• loading screen
  • FileWithProgress should go directly into Timer
    • need to understand lifetimes
  • cleanup abstutil Timer stuff generally