Sinkhole Ravel

sinkhole-ravel

A destructive-action confirm modeled on cover-collapse sinkhole formation: a void chimneys upward through a canvas grain field as its ceiling grains individually ravel into the cavity below, until the crust can no longer bridge its own weight and drops in one fast collapse, backfilling partway before renucleating at a new spot. Click-arm-then-confirm gates a forced collapse.