tools/build_level_osm.py extrudes OSM buildings (-col), lays road strips,
Spawn + RacePath empties; osm_level_args.py computes a building-clear spawn on
a named way and race-loop corners from street intersection nodes. game.gd
builds Path3D from GLB RacePath empties, sanitizes spawn bases, and places
bodies BEFORE add_child. Three real bugs fixed: mall canopies (building=roof)
extruded as solid blocks, underground busways rendered at surface, and the
km-wide ground trimesh breaking suspension raycasts (now -convcol). Cars get
continuous_cd for thin building shells. tests/probe.gd is the physics
raycast debugger that found it.
Data (c) OpenStreetMap contributors, ODbL.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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