abstreet/docs/TODO_ux.md
2019-04-20 21:59:17 -07:00

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# TODO - GUI and UX
## 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"
- color roads as solid black when zoomed out, and make intersections similar (except for stop sign / signal)
- audit all panics
- tune text color, size, padding
- sort the top menus
- click cycle diagram to edit duration
- revamp stop sign editor
- toggle rewind mode
- sim stuff feels like a modal menu that's kinda omniprescent, but gets hidden sometimes
- 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!
- mouseover shouldnt even be possible in lot of modes, like when a menu is active
## General ezgui stuff
- optionally limit canvas scrolling/zooming to some map bounds
- top menu doesnt know when we have a more urgent input thing going!
- cant use G for geom debug mode and contextual polygon debug
- X on all menus
- when dragging, dont give mouse movement to UI elements
- start context menu when left click releases and we're not dragging
- dont draw context menu off-screen
- can we change labels in modal or top menu? show/hide
- stacked modal menus
- should quit key for modal menus match key that started it?
- launch floodfill from context menu while following an agent... shouldnt be allowed
- can coexist: show score, search, hide
- some abstraction to just declare set_mode, give the extra width and height besides the menu, and get back a screenpt to start drawing at
- bold hotkey letters
## New features
- swap direction of one-way
- convert between one- and two-way if there's enough space
- collapse smaller roads/neighborhoods and just show aggregate stats about them (in/out flow, moving/blocked within)
- undo support for edits
## 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
- https://thumbs.dreamstime.com/z/top-view-city-seamless-pattern-streets-roads-houses-cars-68652655.jpg
- general inspiration
- https://gifer.com/en/2svr
- https://www.fhwa.dot.gov/publications/research/safety/05078/images/fig6.gif
- color tuning
- neutral (white or offwhite) color and make noncritical info close to
that. http://davidjohnstone.net/pages/lch-lab-colour-gradient-picker,
chroma < 50
## Switch to OpenGL (for speed)
- speed
- show FPS or some kind of measure of lag
- sleep better in the event loop
- first make UserInput borrow state and not need to consume
- quality
- need padding around text
- text entry needs to draw the cursor differently
- more speculative performance ideas
- experiment with batching and not passing colors
- specialized shaders for common shapes like circles?
- try https://docs.rs/dymod/0.1.0/dymod/ to link in a release-mode ezgui crate?
## Performance
- it's a pity we have to redo DrawCar work for all those parked cars every tick
- areas like lakes are incredibly detailed