Complete new approach after the hand-placed layout shipped misaligned:
every element now derives from a street grid and its building's footprint,
so alignment is structural, not luck.
District structure (modeled on Akihabara's Chuo-dori / Denki-gai / JR
viaduct):
- 16m avenue flanked by continuous mid-rise rows; buildings defined ONLY
by z-interval + floor count (4m quantized floors), packed edge-to-edge
- _building() derives everything from the footprint: parapet lips on the
roof rim, inset glass storefront, sidewalk canopy, stacked per-floor
sign bands, a solid vertical corner sign column with glowing segments,
evenly spaced roof AC units, rooftop billboard on 4+ floor buildings
- Brick rail viaduct crosses the whole block on piers with an under-track
vending arcade; sidewalk-aligned slide ramps with handrails reach the
deck on both flanks
- Denki-gai alley cut through both rows (wallrun walls + fire escape
platforms climbing per floor); red SEGA-style landmark + blue
electronics building anchor the north corners
- Matched streetlight pairs every 16m with arms over the road; zebra
crossings at the alley mouth and south block; spawns on sidewalks/deck
facing the map center
Movement: viaduct high lane + roof-hop onto the 2-floor row, canopy lane
above each sidewalk, alley wallruns + fire escapes, grapple anchors on
lamp arms / sign columns / viaduct edge / billboards, slide ramps.
Acoustics: facades concrete, storefronts glass, canopies wood, viaduct
brick, signs/AC/vending/lights/escapes metal.
Renamed in the level selector: "Akiba Crossing". Verified via aerial and
street captures (aligned rows, clean canyon, viaduct framing); movement
11/11, smoke 0 failures, acoustics ALL PASSED.
Co-Authored-By: Claude Fable 5 <[email protected]>
