Detect when a player shortcuts across geometry and skips checkpoint gates
by monitoring the spline projection delta. When the player jumps past
the configured skip threshold, they are teleported back to the last
legitimate checkpoint, shown a blinking "CHECKPOINT MISSED" banner,
and given a brief invulnerability window.
- Add checkpointMissSkip and checkpointMissMs config values
- Implement delta-based gate-skipping detection in kart logic
- Add HUD banner and sound feedback for missed checkpoints
- Make player sprite blink during the correction window
- Add verification tests for detection, correction, and clean-race false positives
- Make Tetris Attack portrait frame half-transparent
- VictoryCamDirector: cinematic post-race camera system with shuffled
shot types (chase, orbit, front, trackside) and hard-cut transitions;
player can press ENTER to skip.
- Engine audio: per-racer engine hum (heavy/fast/medium) with pitch
tracking based on kart speed; engine-start sound at green light.
- Star power loop sound that stops when star expires.
- Positional audio: AI kart sounds (spin, hit, flatten) scale volume
with distance from player.
- Enhanced event sounds: item-use, boost, EMP, squash, bump, coin,
star now play appropriate SFX.
- Player kart autopiloted after finishing for victory-lap vignette;
race phase waits for entire field (up to 90s safety cap).
- EMP now emits target list for per-target shrink sounds; squash
collision emits event.
- Animated race results screen with staggered row reveals.
- Animated cup standings with running point counter and position
arrows; tweens rows to new ranks.
- Podium reveal: 3rd → 2nd → 1st staggered with confetti, count-up,
and CRT pulse; winner speech plays.
- Mode7 camera now tracks height and focal length; setCamera accepts
arbitrary poses for cinematic shots.
- New audio assets: engine-start/heavy/fast/medium/rev, kart-coin,
kart-flatten, kart-thump, kart-shrink, kart-spin, kart-hit,
kart-shell, kart-star.
- Add beach theme artwork and register paths in artwork JSON
- Implement AI rubber-banding that scales AI top speed based on gap to player
- Configure engine classes with varying rubber-band strength (Cruiser most forgiving, Turbo least)
- Balance racer stats: boost Kona top speed, reduce heavy racer accel/handling
- Update verification script to validate new rubber-banding configuration
Complete kart racing game featuring 12 procedurally generated tracks
across 3 cups, 9 unique racers with distinct stats, headless physics
simulation, and a secret track editor (?superkart-editor=1).
Core features:
- Mode 7 ground renderer with parallax horizon backdrops
- 12 hand-tuned tracks (speedway, beach, swamp, scrapyard, volcano, nightcity)
- 9-racer roster with balanced archetypes (all-rounder, drift pirate, etc.)
- Headless race simulation for deterministic AI and headless verification
- Item system (bolt, seeker, oil, turbo, overdrive, emp, coins)
- Position-weighted item roulette and rubber-banding
- AI opponents with skill-based driving and stuck-recovery
- Full track editor with live preview, validation, and export
- 275 verification checks covering schema, physics, AI soak, and determinism
Data files: data/superkart-racers.json, superkart-rules.json, superkart-artwork.json
Game data: assets/gamedata/superkart/ (cups.json + 12 track files)
Tools: genSuperKartTracks.js, verifySuperKart.js
Brian Fertig