— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
A well-built general Archimedes simulator with ASCII rendering and correct physics, but it completely ignores the prompt's core requirement of two crowns (pure gold vs. gilded) — no crowns, no fall animation, no Heureka moment, no vertical slider, and uses a dark background instead of light.
A well-built general Archimedes simulator with ASCII rendering and correct physics, but it completely ignores the prompt's core requirement of two crowns (pure gold vs. gilded) — no crowns, no fall animation, no Heureka moment, no vertical slider, and uses a dark background instead of light.