m3ultra e9717326f4 Smashable street furniture; fix levels losing every texture on rebuild

Street lamps, bollards and bins are no longer baked scenery. The builder emits
SL_/BO_/WB_ markers off the OSM nodes and game.gd spawns them as RigidBodies
with a low centre of mass, so clipping a lamp at 100 topples it instead of
driving through a painted pole. ~206 physics bodies per level (58 parked cars,
60 lamps, 88 bollards/bins), all asleep until hit. Verified by ramming one:
23.6 deg tilt, launched at 18 m/s.

Fixes a self-inflicted trap from the last commit: level_*.jpg are Godot's
extraction of the GLB's embedded textures, NOT Blender output. build_all
cleared them to avoid orphans but left level.glb.import, so Godot's cache
decided nothing had changed and never re-extracted -- queen_st_mall shipped
with 0 of its 31 textures, loading fine but rendering untextured. The .import
now goes with them.

Also confirmed the Wheel of Brisbane pivot really does turn (0.086 rad over
120 frames, 0.000 m centre drift) -- it was previously untested.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

2026-07-28 18:53:05 +10:00

9.4 KiB

Raw Blame History

Burnout Infinity: Shitbox

Burnout 3-style arcade racer, Aussie shitboxes, Woolies carparks. Godot 4.6 + Blender, native Apple Silicon.

Run

/Applications/Godot.app/Contents/MacOS/Godot --path .

Controls: WASD/arrows drive, Shift drift, Space boost, R reset (or retry after Crash Mode), Esc menu.

Modes

Cruise — free roam with traffic, plus two rivals lapping the circuit. Pull alongside one at speed and it's an Outrun (NFSU2 rules, our code): first to gap the other by 250 m wins. Straight-line distance decides when it ends — so ducking down a side street is a real escape — but path order decides who won, so reversing away from the circuit is a loss. Winning pays takedown-tier boost. R mid-duel is a forfeit.
Crash Mode — 60 seconds, rack up damage dollars ramming traffic and parked cars.
Crash Junctions — pick a "CRASH JCT" entry in the level list: launch into scripted cross-traffic convoys at a real intersection, then Aftertouch-steer your wreck (arrows) and detonate the Crashbreaker (space). Damage tally + bronze/silver/gold. Events live in levels/<id>/junctions.json; generate more from real intersections with tools/osm_junction.py <area.json> <out.json> <lat0> <lon0> "Name|Street A|Street B".
Race — 3 laps vs 3 rubber-banded rivals on the level's RacePath.

The boost loop is Burnout 3's: earn boost by drifting, near-missing traffic, and smashing things. Wrecking a rival near you = TAKEDOWN — refills the meter and grows it (up to 4x). Hard crashes shed body panels and trigger Impact Time slow-mo.

Cars

A car is a folder: cars/<id>/stats.tres + optional car.glb. Models are built procedurally — specs live in tools/build_cars.py, one dict per car (silhouette profile, dimensions, paint). Rebuild all GLBs with:

/Applications/Blender.app/Contents/MacOS/Blender -b -P tools/build_cars.py

Model convention (any GLB works, hand-modelled or generated):

Nose faces +Y in Blender (imports as Godot -Z forward).
Node origin 0.75 m above ground level (the controller's ride height).
Objects named det_* are detachable — the game rips them off on impact (doors, mirrors, bumpers, bonnet, boot).
Current fleet: 30 shitboxes, from the Datto 120Y to the FLOORED LAZZA 1.5 ('82 Laser hatch, rear louvres that shed slat-by-slat — John's actual first car, built from his photos). Piss-take names on purpose: real model names and badges are trademarks.

To improve a silhouette: supply a side-on photo + front three-quarter photo, tweak the profile points in the spec, rebuild, screenshot.

Stats are low-key reversed: the shitboxier the car was in real life, the better it performs here. The Excel X3 is the fastest car in the game; the muscle cars are all bark.

Downloaded models (from shitboxes/, gitignored + .gdignore'd) convert via:

/Applications/Blender.app/Contents/MacOS/Blender -b -P tools/import_shitbox.py -- "<file>" <car_id> <length_m> [yaw_deg]

Imported cars don't shed det_* panels until someone cuts their doors out in Blender.

Real-world levels from OpenStreetMap

Real street grids, our art style, clean collision, ODbL-licensed. Fetch a bbox from the OSM API, convert, build (queen_st_mall was made exactly like this):

curl -A 'BurnoutShitbox/1.0' 'https://api.openstreetmap.org/api/0.6/map?bbox=<minlon>,<minlat>,<maxlon>,<maxlat>' -o area.xml
python3 tools/osm_xml_to_json.py area.xml area.json   # see git history / osm_level_args.py
ARGS=$(python3 tools/osm_level_args.py area.json "<spawn way name>" "<loop street 1,2,3,4>")
Blender -b -P tools/build_level_osm.py -- area.json <level_id> <origin_lat> <origin_lon> $ARGS

Don't reconstruct from Street View imagery (ToS + melted collision). Use photos as reference to hand-detail hero landmarks on the OSM base.

Levels so far: woolies_carpark, queen_st_mall, southbank, albert_parklands, story_bridge (procedural steel truss along Bradfield Highway), kangaroo_point.

Area JSONs are cached in ~/.cache/burnout_osm (override with $OSM_CACHE); tools/build_all_levels.sh rebuilds every level from them.

What the builder makes of the OSM data

Beyond the street grid and building footprints, it uses the furniture OSM already carries — street lamps, benches, bins, bollards, bus stops and the whole footway network — so most of the detail is real Brisbane, not invented:

Buildings extrude with a glazed shopfront band at street level, a cantilevered awning over the footpath (three canvas colours, varied heights, ~70% of buildings — a whole street at one height in one colour reads as a painted stripe), a roof parapet, and a plant room on anything tall.
Footpaths come from the OSM footway ways, raised 14 cm with a chamfered kerb. The chamfer is deliberate: a hard vertical edge at 120 km/h reads as a crash to the jolt detector in car.gd.
Roads get dashed centre lines; footway=crossing becomes zebra bars laid flat on the road instead of a raised strip you'd launch off.
Trees are a trunk plus three offset welded spheres (figs) or radiating fronds (palms), scattered along kerbs on top of the ones OSM maps — Brisbane has far more street trees than are tagged.
Smashables: the builder drops marker empties and game.gd fills them at load with RigidBodies — PP_ kerbside/carpark parking spots become shuntable fleet cars, and SL_/BO_/WB_ (OSM street lamps, bollards, bins) become topple-able street furniture with a low centre of mass so a clipped lamp post goes over rather than helicoptering. All asleep until rammed, and skipped entirely in junction mode to keep those puzzles deterministic. Lamps and bollards are deliberately not baked into the level mesh — a static pole you drive through is worse than no pole.
Brisbane colour: red busway asphalt, jacaranda-purple canopy on ~1 in 5 street trees, Queenslander weatherboard + corrugated iron on building=house footprints, fictional shop-fascia signs above awnings and rooftop billboards in three designs (FLUX gibberish lettering on purpose — no real brands).
Traffic signals from highway=traffic_signals — pole, mast arm and two lantern heads, with emissive lenses so they read as lit in a shaded canyon.
Power poles + sagging wires down one side of residential streets, the single most Australian thing a suburban street can have.
Southbank landmarks (hardcoded per level id): the Wheel of Brisbane placed off its mapped ticket office, and the Grand Arbour's curling steel tendrils + bougainvillea following the actual mapped footway.
Queen Street Mall's winged canopies grow along pedestrian ways whose name starts with the canopy argument. Note OSM splits the mall into a 15 m stub named "Queen Street Mall" plus the 438 m pedestrian way named just "Queen Street", hence prefix matching.

Variation is seeded off OSM ids, so rebuilds are reproducible.

Textures

assets/textures/ is FLUX-generated. Regenerate the whole set with tools/gen_textures.sh or one with tools/gen_textures.sh <name>; creds are read from .env, never printed.

Cloudflare Workers AI first, then the local MODELBEAST farm as an automatic fallback (flux_local.py, operator flux_local). This is not optional nicety: Cloudflare's free tier is 10,000 neurons/day and one full set regen exhausts it, after which every call 429s. The fallback is transparent — gen_textures.sh output looks identical either way.

Two things worth knowing before you re-prompt:

FLUX returns a near-white blank sheet for anything described as pale ("off white metal panel" came back at 240/255 however it was worded), and a blown-out albedo renders as a featureless void in game. The spec table's last column is a target mean luma that clamps this deterministically.
tools/check_textures.py reports mean/contrast for the set and flags the duds. Run it after regenerating.

The builder box-projects UVs at a per-material metres-per-tile scale; facades pick glass/brick/concrete/heritage/sandstone by height, building tag and id hash.

woolies_carpark is the one level still built in GDScript rather than as a GLB (carpark.gd) — its parked shitboxes have to stay shuntable RigidBodies, which a static GLB can't carry. It picks its parked cars at random from the real fleet. Its Trolley Run junction runs convoys along the aisles at z = 15/12 and z = -21/-24, so keep those lanes clear.

Add a level

Make a folder levels/<id>/ containing level.glb (or level.tscn). Blender convention:

Solid objects: suffix the name with -col (Godot generates collision on import).
An Empty named Spawn where the car starts.
A curve/path named RacePath (loop) enables Race mode and traffic.
Export glTF Binary to levels/<id>/level.glb. It appears in the menu.

Tests

/Applications/Godot.app/Contents/MacOS/Godot --headless --path . --import
/Applications/Godot.app/Contents/MacOS/Godot --headless --path . --script tests/smoke.gd

Visual check (opens a window, saves a PNG):

/Applications/Godot.app/Contents/MacOS/Godot --path . --script tests/screenshot.gd -- car=datto_120y mode=crash frames=280 out=shot.png

Design doc

docs/BurnoutInfinityShitbox.pdf — research report on the original game. Still to come: crash deformation (control-hull vertex displacement, equations in the PDF), oncoming-lane boost, Road Rage mode, sound, real level GLBs from Blender.

9.4 KiB Raw Blame History