# CHANGELOG Every time I upload a new [binary release](https://github.com/dabreegster/abstreet/releases), I'll list major changes here. 0.1.0 - First binary release 0.1.1 - drawing arrows better - start with a splash screen, make it easy to change maps in-game 0.1.2 - totally revamp GUI by organizing everything into distinct gameplay modes 0.1.3 - new warp tool that autocompletes street names - hideable menus, place context menus better, remove top menu bar, add a simple OSD - loading screens reflect what's printed to the terminal - depict pedestrians and bikes with more detail - tool to scroll through an agent's route - make simulation speed controls actually work 0.1.4 - improve stop sign editor UI (toggle entire roads) - better mouseover / selection rendering - better traffic signal rendering (show time left, use outlines for yields) - make cars actually stop and briefly wait at stop signs - improve edit mode diff visualization (cross-hatching) - render actual stop signs, not just red lines - fix intersection policies confused by conflicting straight turns with lane-changing - fix mac scrolling - better turn indicators - nicer unzoomed view of roads, with different colors for big/small roads 0.1.5 (release file size jumped from ~15MB to ~70MB because of new PSRC trips) - improve UX of intersection editors - define a better set of maps included by default - improve drawing speed by batching more stuff - better default traffic signal policies for many cases - import and visualize census data - fix missing sidewalks on downtown one-ways - import and visualize PSRC trip data 0.1.6 - slider widget for controlling time and speed - fixing bad polyline geometry in most cases; visualizing routes should no longer be buggy - handle PSRC trips that begin or end out-of-bounds - draw agents in unzoomed mode in a way simpler way - improve edit mode: detect reverts to original, easier lane type switching - lots of fixes for buses: handle edits better, read sequence of stops correctly from GTFS - set up A/B tests faster 0.1.7 - bulk and revert tools in edit mode - improve turns and default intersection policies when bike/bus lanes involved - new tool to manually hint for short roads and weird intersections. some problems have now been manually fixed - scoreboard of trip results for sandbox and A/B test mode - reduce lag when sim is running at full speeds, but system is too slow - switch to easbar's contraction hierarchy crate, making all pathfinding INSANELY fast - remove weird rules about the world freezing when traffic signals are in "overtime" 0.1.8 - edit mode: convert to a ped scramble cycle, simplify stop sign editor by removing individual turns - ui: put labels next to sliders, organize modal menus into sections, add a minimize/maximize icon - A/B test mode: savestate, include time controls and agent following/route tools here - use more OSM data for turn lanes, turn restrictions from lanes, turn restrictions between entire roads - dont attempt to cross a traffic signal if there's absolutely no hope - improve bus route UI tools and make routes using transit more sane - user-defined shortcuts for jumping between views of a map 0.1.9 - sliders to pick times in wizards - fix hidpi scaling - traffic signal diagram scrolls properly - easier to instantiate a scenario, show all trips involving a building for a scenario - colorschemes to show trip duration or time blocked - label buses with route number - represent overlapping pedestrians as a labeled crowd - massive performance boost via real priority queue - prevent cars from "blocking the box" - prevent all? aborted trips (due to parking blackholes mostly) - smarter roam-around-for-parking router 0.1.10 - sim - parking in off-street garages and on-street lanes on the off-side of oneways now mostly works - detect and handle parking blackholes; cars should never get stuck looking for parking now - let lower-priority turns happen at traffic signals when higher-priority ones blocked - get closer to FCFS ordering at stop signs - basic opportunistic lane-changing - a bus should be seeded for every route now - demand data - show trips to/from buildings and borders - make PSRC trips seed and attempt to use parked cars - UI - different heatmap overlays, like parking availability and busiest areas - show colorscheme legends when relevant - interactively seed parked cars, spawn more types of trips - fix major A/B test mode bug (mismatched scenarios and map edits) - adjusting sliders, menu placement, dynamic items - consolidating different tools into a single info panel for objects - bus route explorer shows entire route, current bus location - map quality - degenerate intersections only have one crosswalk now - revamped the map editor for fixing geometry problems, used it in many places - nicer yellow center lines (dashed when appropriate) - handling OSM turn restriction relations properly - fix empty traffic signal phases - handling bike lanes on certain sides of the road - starting to upstream manually-verified parking lanes into OSM - new gameplay: reverse direction of lanes 0.1.11 - small UI fixes: fixed width traffic signal diagram, skip info phase of menus when empty - start drawing (but not using) shared left-turn lanes from OSM - fix OSM polylines with redundant points (fixing an issue in ballard) - improved traffic signal policies in some cases - started upstreaming some sidewalk tags in OSM to fix inference issues - fixed misclassified right turns - adjusting map colors - handling lakes/ocean polygons from OSM way better - reorganized sim analytics, added stuff for bus arrivals - adding new internal road points to map editor. almost ready to really aggressively use it - skipping parking lanes with no nearby sidewalks, since they're unusable - fix z-order of bridges/tunnels in unzoomed view - allow unzooming indefinitely - move lots of sandbox mode controls (and other modes) to menus under buttons and dedicated buttons - basic support for marking a lane closed for construction - improved geometry of sidewalks at dead-ends 0.1.12 - reorganize everything as different challenge modes. start implementing 3: optimizing a bus route, speeding up all trips, or causing as much gridlock as possible - improved bus route explorer - some UI fixes (popup messages in a few places, moving mouse tooltips to the OSD) - lots of analytics and time-series plots 0.1.13 - analytics: prebake baseline results properly. hover over plot series. some new modes to see bus network, throughput of a road/intersection over time - log scale for the speed slider - add a bulk spawner in freeform mode (F2 on a lane) - rendering: nicer routes, crosswalks, zoomed car colors - map data: better stop sign and sidewalk heuristics - fixed the mac hidpi text rendering issue once and for all?! 0.1.14 - better crosswalk generation when there's only a sidewalk on one side of a road - edit mode UI revamp: paintbrush-style buttons to apply changes to lanes - show error messages and prevent edits, like disconnecting sidewalks - properly ban bikes from highways (revamped rules for vehicles using a lane) - new freeform mode tool to spawn bikes - WIP (not working yet): make bikes prefer bike lanes. some debug heatmaps for path cost - edit mode has proper undo support 0.1.15 - minor bugfixes with reverting lane types, preserving stop signs - incorporate edits into the challenge splash screen, make sure edits are reset when appropriate - starting a new challenge mode, just focused on traffic signals - can't leave traffic signal editor with missing turns - render pedestrian crowds on building front paths - traffic signals support an offset parameter - traffic signal visualization and editing revamped to group related turns together - can preview traffic using a signal from the editor - actually apply priority at intersections, so protected turns get first dibs over yield turns 0.1.16 - fix Mac crashing with texture limit bug by switching to texture arrays - fix crashing simulation when a border intersection was used - started to implement a new UI design for starting the game 0.1.17 - more work on the pre-game UI, with some flexbox layouting - prototype a minimap in sandbox mode. doesn't pan or scroll yet. - prototype a new speed/time control panel from the mockup - nicer time warp loading screen - record and show detailed trip timeline, including time to park 0.1.18 - map data: infer more building addresses - some analytics on how long people spend parking and intersection delay over time - create an options panel, allowing runtime customization of color scheme, traffic signal rendering, etc - internal changes to map building pipeline to make it much easier for new devs to onboard - organizing challenges into sub-stages, starting to flesh out specifics for the fix traffic signal track - much more realistic pedestrian pathfinding - fix minimap on mac (dpi issues) - visual tweaks to cars to make front/back easier to distinguish - internal change to switch most assets from PNG to SVG 0.1.19 - some challenge modes show a histogram for counting faster/slower trips - new visualization of current demand per direction at a traffic signal - implementing some of Yuwen's UI changes: agent counter, split time/speed panel, moved functionality out of the old drop-down menus into a bottom-left tool panel, hiding debug functionality - replaced right-click context menus with left click to open info panels - fixed random issues reported by people from HN 0.1.20 - moved some UI functionality around, pulling graphs into info panel - interactive legend for the minimap, toggle visibility of different agents - nicer colors and shapes for cars - misc simulation bugfixes that might help huge_seattle - pedestrians choose to use transit more realistically, factoring in time for the bus to drive 0.1.21 - switch some analytics dashboards to use buttons, not old non-scrolling menus - scrollbars... at least a start - preview traffic signal changes from live sim as the base - traffic signal preview has normal time/speed controls - traffic signal editor has undo support - minimap has buttons to pan 0.1.22 - minimap zoom controls - traffic signal rendering overhaul - heatmap colors improved, heatmap appears on minimap - bus info panel, a start to live delay analytics 0.1.23 - UI revamps: speed panel, minimap controls, heatmap chooser - bus timeline - hide internal IDs normally - limit map zoom - fix bugs with crosswalks conflicting with vehicle turns 0.1.24 - overhaul traffic signal editor UI, and add redo support - update main edit mode UI, and add redo support - limit max unzoom - fix the infamous HiDPI bug once and for all; minimaps should work everywhere - almost bug-free support for floating, horizontally and vertically scrolling panels - overhaul top-center panel, rename scenarios to be less confusing - expose bus analytics outside of challenge mode - live info panel can exist during a running simulation - consolidated agent route/trip information into info panel 0.1.25 - overhauled the tutorial - tuned top-center panel for sandbox and challenge modes - make bike and bus lanes more obvious - show map edits as an overlay anywhere - tune info panel contents, and show relationships between parked cars and buildings - fixes to traffic signal editor, like making all-walk conversion idempotent - nicer throughput and delay plots (sliding windows, grid lines) 0.1.26 - tutorial improved in a few places - map data: thinner sidewalks, associate buildings with named amenities - traffic model: vehicles can spawn on all lanes from a border - much better gameplay speed (previously was too fast) - UI tuning: lane editor, minimap, signal editor, heatmap legends don't overwrite minimap - traffic signal challenge communicates score more clearly 0.1.27 - edit mode revamped: click to edit stuff. no more lane paintbrushes. autosaving and save as. - tutorial: can quit and resume tutorial now - challenge picking flow simplified - UI: layouting fixes to full-screen / into stuff, popup menus go beneath buttons, plots improved - internal change to render all text using vector graphics. other than a few text layouting issues, shouldn't be noticeable, except now tooltips in plots don't get covered up - misc perf improvements (cache SVGs, drawing many circles for unzoomed agents, dont reload prebaked data) - upgraded winit, glutin, glium -- hopefully no new bugs introduced on any platforms 0.1.27a - patch to fix a crash with empty text dimensions on things like building info panels 0.1.28 - all info panels revamped - some tutorial stages are much more clear, with an updating goal - traffic signal scorecard generalized to work for some tutorial too - adjust how selected agents look - X button on popup menus 0.1.29 - new tool to convert between stop signs and traffic signals - lane editor easier to edit multiple lanes - info panels: IDs, mostly avoid horizontal scrolling, better info about trips to/from somewhere, move buttons up - traffic signal editor UI overhaul - different data in top-right agent meters panel - tooltips to communicate keybindings better - new jump-to-time panel, showing when rush hours occur - speed controls use more useful speeds - include ongoing trips in measured trip times - jump to next challenge after completing one - lots of tutorial tweaks 0.1.30 - show additional info about traffic patterns and buggy maps - revamp tutorial UI to group tasks and messages better - handle different mode transitions when info panel open on an agent - select entire roads in unzoomed edit mode - show total time an agent has spent moving / blocked - use 2-phase traffic signals by default, making the 23rd map successfully complete! - jump-to-time now optionally points out traffic jams forming - challenge splash screen improved 0.1.31 - overhauled trip timeline in agent info panels - overhauled traffic signal details panel and the per-lane turn explorer - settings page: show all options at once. add way to scale up text/UI elements for high-DPI displays, and an alternate pan/zoom control scheme - traffic signal edits can now be exported and used in any slice of Seattle. will be using this to hand-map many of them. - many small tutorial fixes 0.1.32 - some UI work on giving focus to textboxes, improving dropdown menus - road/intersection plots display baseline sim data too - start associating people with multiple trips, exposing this a little in the UI - bring back elevation data, introduce a new overlay. the elevation data is still really bad. 0.1.33 - new "population" overlay, showing people (not just current trips). heatmap and dot map to visualize. - improved the "delay" overlay to handle roads and intersections - removed the confusing and useless alternate color schemes for agents - initial left-hand driving side, tested in Perth, also drawing more arrows for all one-way roads - loads of internal GUI code refactorings, preparing for a standalone release of the library - fixed z-buffering and alpha values for web backend 0.1.34 - info panels have been totally overhauled again. multiple tabs, way more clear representation of agents, trips, and people. - draw people inside of a building - applied consistent typography everywhere - lots of internal refactoring 0.1.35 - more info panel work, particularly for trips and buses. change plot settings live. - prototype of a SEIR pandemic model based on time spent in shared spaces, by orestis - slight heatmap improvements, more coming - more typography changes - mouse cursor now changes for buttons and dragging! - overhaul minimap controls, make layers behavior zoomed in a little better - new speed panel and jump-to-time modal 0.1.36 - overhauled simulation data page, with a table to find slow trips and some initial summary visualizations - plots can change windowing and show/hide series - layers: fade map to contrast more, better scales/legends - show relative trip times in info panels - tools to rewind/ffw to watch particular trips - refocusing efforts on challenge modes; level 1 of a new one is pretty much ready - some simulation fixes around parking and a corner case of cars temporarily forming a cycle - orestis improved the population/pandemic heatmaps 0.1.37 - optimize commute challenge: high score, live sentiment, second stage - parked cars are owned by people, not buildings - info panel improvements for trips - bike layer suggests places where bike lanes could be helpful - many improvements to scatter plot - a new histogram-ish thing for understanding faster/slower trips - handling scenarios longer than 24 hours better (for pandemic model) - prototype of commute visualization, grouping buildings by blocks - sim bugfixes: crosswalk / vehicle turn conflicts, start bikes in bike lanes from borders 0.1.38 - major internal changes to ensure people's schedules don't have impossible gaps, to associate fixed bikes/cars to a eprson, handle delayed starts to trips - parking changes: show path to closest free spot, utilization of a lane over time, every building includes at least 1 offstreet spot by default - progress on removing unrealistic gridlock: detect turn conflict cycles and temporarily allow conflicts, trim last steps of a laggy head - internal sim alert system. speeds up debugging, could be used for player-facing "traffic jam!" alerts 0.1.39 - switched to proper OSM-based maps; no more brittle, manual geometry fixes - more sorting and filtering options in trip table and parking overhead tables - improve offstreet parking rendering. park closer to destination buildings - easier process for importing new cities. introducing Los Angeles, Austin, Barranquilla. - new data updater tool so people can opt-in to new cities - many internal fixes to prevent gridlock. smarter cycle detection, manual OSM fixes and traffic signal timings 0.1.40 - differential throughput layer to understand routing diversions - map edits now reference longer-lasting OSM IDs, can work cross-map - basemap updates: new areas for west seattle, mt baker, lots of upstreamed fixes in OSM and traffic signals, smarter border matching - parking: optionally filter on/off-street spots in the layer, allow disconnecting spots via edits - render some tunnels with lower opacity - new feature to change speed limits and bulk road selection tools - first write-up of a real use case (closing lake wash through arboretum) - make the traffic signal challenge act like a game, with a failure/win state and scoring 0.1.40a - added a mode to map parking 0.1.41 - new parking mapper tool - include a one-shot .osm importer in the release - new layer to find different types of amenities / businesses - adjust traffic signal rendering style - bulk lane editor for changing speed limits and lane types - including west seattle and udistrict maps - include some OSM buildings that were being skipped - dont pause after opening something from sandbox mode - adjust turn signals for lane-changing cars - lots of fixes for monitors with different DPIs, enabled by default 0.1.42 - many misc UI bugfixes, especially for high-DPI screens - managing turns across multiple nearby intersections: tool to visualize, handling multi-way OSM turn restrictions, using this to ban illegal movements at the pathfinding layer, starting a traffic signal editor variant to edit these - rendering improvements: unzoomed agent size, visualizing routes on trip table, transparent roads beneath bridges, draw harbor island - overhauled street/address finder - parking mapper: shortcut to open bing 0.1.43 - new map picker! - UI polish: traffic signal editor, layers, bus stops, delay plots - generate more interesting biographies for people - tuned all the map boundaries - fleshing out lots of docs in preparation for the alpha release...