✓ 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
Slider is implemented via CSS rotation (transform: rotate(-90deg)) rather than a native vertical input, which inverts the expected direction (value=0 at bottom = crowns in air is visually top, causing directional confusion); physics values (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass) are correct and displacement ratio is properly proportional, but the "render" function is duplicated/overwritten mid-script to patch a typo (subiderVal) which is messy but functional.
8,985 output tokens · claude-opus-4-6 · end_turn
Slider is implemented via CSS rotation (transform: rotate(-90deg)) rather than a native vertical input, which inverts the expected direction (value=0 at bottom = crowns in air is visually top, causing directional confusion); physics values (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass) are correct and displacement ratio is properly proportional, but the "render" function is duplicated/overwritten mid-script to patch a typo (subiderVal) which is messy but functional.