The map was hardware-rendered, but every frame recomputed every road
point, rebuilt every path and drew the big roads three times, at 20
frames a second, and the car jumped with each GPS fix. Now it is its own
view under the Grid (MapLayerView, a hardware layer): drawn once into a
GPU texture and only redrawn when tiles change or after about 230 m;
each display frame only sets its translation and rotation. The car
glides between fixes, and the Grid over the map redraws only with the
readings.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
The map fills the whole screen, top-down and heading up, about 400 m
ahead and 450 m to each side, over a ground grid that turns with it.
The speed moves to a panel under the gears; the battery wall, the
clock, the gears and the disc stand on dark panels over the map.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
The map gets its own camera, tilted 45 degrees down from about 300 m up,
so roads keep their shape some 400 m ahead instead of collapsing into
the horizon. In map mode the floor starts at half height, the speed is a
little smaller, the floor's grid is fixed to the ground and turns with
the roads, and the power disc has a dark backing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
The public Overpass answered 429/502 and needs ~40 s a tile while the
car gives up after 8 s, so the server cancelled its queries and the
car's retries added load. Now the server fetches only the tiles a car
asks for, as OpenStreetMap vector tiles from OpenFreeMap (MAP_TILES_URL),
decodes the transportation layer with a small reader of its own, and
keeps each tile 30 days on a volume (MAP_CACHE_DIR). A fetch finishes
even after the car has stopped waiting; the car hears 503 with
Retry-After and gets the tile on its next try.
App: OpenFreeMap/OpenMapTiles attribution on the map, retry after 15 s.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
A new Overview style: the Grid over the roads round the car from
OpenStreetMap, drawn in the floor's perspective, heading up, the bigger
roads glowing brighter, the car as a chevron.
Server: POST /v1/map/roads {z:14,x,y} fetches a tile's drivable roads
from Overpass (OVERPASS_URL; one request at a time, at least a second
apart), simplifies them to tile-local points in four classes, caches
them for 30 days and never logs the tile.
App: MapRoads keeps the 3x3 tiles round the car from its own cache or
the server; GPS only while the style is shown; bearing from the GPS or
from successive positions. Without GPS, server or roads the plain floor
says why. OSM attribution on screen and in LICENSE.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
Neon lines on black over a perspective grid floor that moves with the
speed; the battery as a light wall, power on a disc whose inner ring
turns with it, and the last two minutes of power as a light-cycle trail
of right angles (the Cockpit's PowerTrace, now in ClusterValues). Cyan,
or the accent colour; in cyan the app turns cyan too. In THEMES.md with
two screenshots. Emulator only; not tried on the car.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
nilsandClaude Opus 5.5