✓ 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
All required features are implemented correctly in a well-structured ASCII-art canvas; the main weakness is that splash detection triggers only at a single threshold (~t=0.25) and the wave surface animation relies on Date.now() ticks that don't render meaningfully in a static-redraw loop, making the wave effect largely cosmetic noise.
All required features are implemented correctly in a well-structured ASCII-art canvas; the main weakness is that splash detection triggers only at a single threshold (~t=0.25) and the wave surface animation relies on Date.now() ticks that don't render meaningfully in a static-redraw loop, making the wave effect largely cosmetic noise.