- New test/t_physics.js: heaps, sorting, sinking, world edges; molten copper levelling, setting,
quenching, slag over copper, cavity filling; smoke, steam, fire, sealed pockets, the top row.
- Gas in a sealed pocket kept its area asleep and never faded or condensed: gas() keeps its area
awake while it lasts.
- A rain drop or blown grain landing on steam deleted the steam's water: it goes to the clouds.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>