js/kitthumbs.js renders each kit GLB to a 128x96 sprite once (offscreen
renderer, framed by bounding sphere), POSTs to /api/kit-thumb, and all 52
are committed under assets/kit_thumbs/ so every checkout gets instant thumbs;
the generator only runs for props without one (future kit drops). KIT drawer
shows them with category groups and filter.
js/colliders.js derives world-space colliders from kit manifest hints +
a table for builtin props (bins, planters, trunks, fences...). Test ride
resolves circle-vs-box/circle push-out — you scrub and stop instead of
riding through furniture. Exports gain an additive COLLIDERS array for
bookquoy to adopt when its player is ready; existing contract untouched.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
js/grass.js: reusable single-file grass module for all our games — GPU-instanced
blades (33k+ in one draw call), vertex-shader wind hashed per blade, root->tip
fake-AO gradient x per-instance tint, alpha-test pixel style (nearest-filter
16x24 canvas cards, stepped sway), deterministic seed, player-push uniform.
docs/GRASS.md records the technique ladder (clump maps, shell texturing,
billboard LOD, MB atlas gen) for future tiers. Auto-grows on parkland + islands,
PARK panel style/density, included in exported levels via buildParkScene.
Test ride: grind physics — falling onto any flattened steel (rails, ledge caps,
pool coping) locks a slide along the segment, pop off with Space or ride off the
end; grass parts around the rider.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Data-driven parks: one heightAt(x,z) evaluated from element JSON drives the
editor viewport, collision, test ride, and exported game levels. Ships with
Paddo ported from bookquoy, a MODELBEAST panel (gen images, cut bg, image->3D,
place farm GLBs as props), image decals + reference underlay tracing, a park
design linter (docs/DESIGN_PRINCIPLES.md), THPS-style instant test ride, and
a level.js codegen that drops straight into bookquoy.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
