Claude Opus 5 powers a rhythm racer that turns any song into a racetrack
repligate · x · 2026-07-26
A developer built a rhythm racer that turns any song into a playable racetrack, with Claude Opus 5 helping generate the level logic.
- Drop in an audio file and the game generates the track from the song itself, with no hand-authored charts or presets.
- The system analyzes the full track up front using FFT in a web worker, onset detection, and tempo estimation while the loading screen renders the waveform.
- The key design choice is offline song analysis rather than a live visualizer, so the player can literally “see the road ahead.”
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